KR102210589B1 - Organic light emitting display panel and organic light emitting display device - Google Patents

Abstract

In the present embodiments, while preventing unnecessary deterioration of a pixel formed in the active region, at least one monitor rung pixel formed as a dummy pixel in the inactive region is used to indirectly sense the degree of deterioration of the pixel formed in the active region. , An organic light emitting display panel and an organic light emitting display device that enable luminance compensation according to deterioration of a pixel formed in an active region based on a sensing result.

Description

Organic light emitting display panel and organic light emitting display device {ORGANIC LIGHT EMITTING DISPLAY PANEL AND ORGANIC LIGHT EMITTING DISPLAY DEVICE}

The present invention relates to an organic light emitting display panel and an organic light emitting display device.

2. Description of the Related Art Recently, organic light-emitting display devices, which are in the spotlight as display devices, use organic light-emitting diodes (OLEDs) that emit light by themselves, so that response speed is fast, and luminous efficiency, luminance, and viewing angle are great.

In such an organic light emitting display device, subpixels including organic light emitting diodes are arranged in a matrix form, and brightness of subpixels selected by a scan signal is controlled according to gray scale of data.

Each sub-pixel of the organic light-emitting display device includes an organic light-emitting diode, and a circuit unit including a transistor and a capacitor for driving the organic light-emitting diode.

Circuit elements such as organic light-emitting diodes and transistors in each sub-pixel are degraded according to the driving time, thereby reducing the luminance of each sub-pixel or causing a luminance deviation between each sub-pixel. The luminance uniformity of is lowered. Such a decrease in luminance uniformity can significantly degrade image quality and seriously impair product quality.

Accordingly, sensing and compensation technologies have been proposed, but conventional sensing and compensation technologies require driving subpixels within a pixel for sensing purposes while not displaying an image during a sensing operation for luminance compensation. There are problems that occur, and there has been a problem in that sensing and compensation efficiency is greatly deteriorated.

An object of the present embodiments is to provide an organic light emitting display panel having high luminance uniformity, and an organic light emitting display device including the same.

In addition, another object of the present embodiments is to provide an organic light-emitting display panel and an organic light-emitting display device capable of estimating the degree of deterioration of a pixel formed in the active area without causing unnecessary deterioration of the pixel formed in the active area. have.

In addition, another object of the present embodiments is to provide an organic light emitting display panel and an organic light emitting display device capable of accurately and precisely estimating the degree of deterioration of a pixel formed in an active area.

In addition, another object of the present embodiments is to indirectly sense the degree of deterioration of the pixel formed in the active region, without causing any deterioration of the pixel formed in the active region, and based on the sensing result, An organic light emitting display panel and an organic light emitting display device capable of compensating for luminance according to deterioration of pixels are provided.

In one embodiment, an organic light emitting display panel in which a plurality of data lines are formed in a first direction, a plurality of gate lines are formed in a second direction, and a plurality of pixels are arranged in an active area, and a plurality of data are provided. A data driver for driving a line, a gate driver for driving a plurality of gate lines, and a timing controller for controlling the data driver and the gate driver, and in a first direction or a second direction outside the active area of the organic light emitting display panel. An organic light-emitting display device is provided in which monitoring pixels or monitoring pixel sets as many as the number of pixel rows or pixel columns are arranged in a direction.

In another embodiment, a plurality of data lines formed in a first direction, a plurality of gate lines formed in a second direction, a plurality of pixels disposed in an active area, and at least one dummy pixel row or at least outside the active area An organic light emitting display panel in which one dummy pixel row is arranged is provided.

In another embodiment, a plurality of data lines formed in a first direction, a plurality of gate lines formed in a second direction, a plurality of pixels disposed in the active area, and at least one dummy pixel outside the active area are included. However, an organic light emitting display device to which a deterioration stress data voltage is applied to at least one dummy pixel is provided.

Another embodiment includes a plurality of data lines formed in a first direction, a plurality of gate lines formed in a second direction, a plurality of pixels disposed in the active area, and two or more dummy pixels outside the active area. , An organic light emitting display device to which different deterioration stress data voltages are applied to two or more dummy pixels is provided.

According to the exemplary embodiments described above, an organic light-emitting display panel having high luminance uniformity and an organic light-emitting display device including the same can be provided.

In addition, according to the present embodiments, the degree of deterioration of a pixel formed in the active region is reduced by using at least one monitor rung pixel formed as a dummy pixel in the non-active region without causing unnecessary deterioration of the pixel formed in the active region. An organic light emitting display panel and an organic light emitting display device that can be indirectly estimated can be provided.

In addition, according to the present embodiments, an organic light-emitting display panel and an organic light-emitting display capable of accurately and accurately estimating the degree of deterioration of a pixel formed in the active area by using two or more monitor-run pixels formed as dummy pixels in the inactive area Device can be provided.

In addition, according to the present embodiments, the degree of deterioration of the pixel formed in the active region by using at least one monitor rung pixel formed as a dummy pixel in the non-active region without causing any deterioration of the pixel formed in the active region. An organic light-emitting display panel and an organic light-emitting display device capable of indirectly sensing and compensating for luminance due to deterioration of a pixel formed in an active area based on a sensing result may be provided.

1 is a schematic system configuration diagram of an organic light emitting display device according to embodiments.
FIG. 2 is a diagram illustrating two equivalent circuit diagrams for subpixels of an organic light emitting display panel according to exemplary embodiments.
3 is a diagram illustrating a decrease in luminance of a subpixel according to a driving time in an organic light emitting display panel according to exemplary embodiments.
4 and 5 illustrate an arrangement structure of one monitoring pixel row or one monitoring pixel column in an inactive area, and one monitoring pixel row or one monitoring pixel column in an inactive area in the organic light emitting display panel according to the embodiments. A diagram showing luminance compensation in an active region using a monitored pixel row.
6 and 7 illustrate an arrangement structure of three monitoring pixel rows or three monitoring pixel columns in an inactive area, and three monitoring pixel rows or three monitoring pixel rows in an inactive area in the organic light emitting display panel according to the embodiments. A diagram showing luminance compensation in an active region using a monitored pixel row.
FIG. 8 is a diagram illustrating a deterioration stress data voltage supplied to monitoring subpixels constituting each of m monitoring pixels in one row of monitoring pixels in an organic light emitting display panel according to exemplary embodiments.
9 is a diagram illustrating a deterioration stress data voltage supplied to monitoring subpixels constituting each of n monitoring pixels in one column of monitoring pixels in an organic light emitting display panel according to exemplary embodiments.
10 illustrates deterioration stress data voltages supplied from three monitoring pixel rows to monitoring subpixels constituting each of three monitoring pixels included in each of m monitoring pixel sets in the organic light emitting display panel according to the embodiments. It is a figure shown.
11 illustrates deterioration stress data voltages supplied to monitoring subpixels constituting each of three monitoring pixels included in each of n monitoring pixel sets in a column of three monitoring pixels in an organic light emitting display panel according to embodiments. It is a figure shown.
12 is a configuration diagram for sensing and luminance compensation based on a voltage sensing method using a monitoring sub-pixel (MSP) to which a deterioration stress data voltage is applied in an organic light emitting display device according to exemplary embodiments.
13 is a configuration diagram for sensing and luminance compensation based on an illuminance sensing method using a monitoring subpixel (MSP) to which a deterioration stress data voltage is applied in an organic light emitting display device according to exemplary embodiments.
14 is a diagram illustrating luminance before and after luminance compensation using a monitoring subpixel in an organic light emitting display device according to exemplary embodiments.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. In adding reference numerals to elements of each drawing, the same elements may have the same numerals as possible even if they are indicated on different drawings. In addition, in describing the present invention, when it is determined that a detailed description of a related known configuration or function may obscure the subject matter of the present invention, a detailed description thereof may be omitted.

In addition, in describing the constituent elements of the present invention, terms such as first, second, A, B, (a), (b) may be used. These terms are only for distinguishing the component from other components, and the nature, order, order, or number of the component is not limited by the term. When a component is described as being "connected", "coupled" or "connected" to another component, the component may be directly connected or connected to that other component, but other components between each component It is to be understood that is "interposed", or that each component may be "connected", "coupled" or "connected" through other components.

1 is a schematic system configuration diagram of an organic light emitting display device 100 according to embodiments.

Referring to FIG. 1, an organic light emitting display device 100 according to embodiments includes 4m data lines DL1, ..., DL4m, m: natural numbers) and second data lines in a first direction (eg, vertical direction). The organic light-emitting display panel 110 in which n gate lines (GL1, ..., GLn, n: natural numbers) are formed in the direction (eg, horizontal direction) and 4m data lines (DL1, ..., DL4m) A data driver 120 to drive, a gate driver 130 to sequentially drive n gate lines GL1, ..., GLn, and a timing controller that controls the data driver 120 and the gate driver 130 (140) and the like.

In the organic light emitting display panel 110, 4m data lines DL1, ..., DL4m and n gate lines GL1, ..., GLn are formed to form 4×m×n subpixels (SP: Sub Pixel) is formed.

The organic light-emitting display consists of four sub-pixels corresponding to red sub-pixel (R), white sub-pixel (W), green sub-pixel (G), and blue sub-pixel (B) to form one pixel (P: Pixel). In the panel 110, m×n pixels are defined.

In addition, m×n pixels are arranged in an active area (A/A) that is an area in which an image is displayed on the organic light emitting display panel 110. Here, the outer area of the active area (A/A) in which an image is displayed on the organic light emitting display panel 110 is referred to as a non-active area (N/A) in which an image is not displayed.

Here, in the present specification, it is assumed that one pixel is composed of four subpixels corresponding to a red subpixel (R), a white subpixel (W), a green subpixel (G), and a blue subpixel (B). . However, this is only an example for convenience of explanation, and in some cases, one pixel is composed of three subpixels corresponding to a red subpixel (R), a green subpixel (G), and a blue subpixel (B). It could be. In this case, 3m data lines are formed in the first direction on the display panel 110.

The timing controller 140 starts scanning according to the timing implemented in each frame, converts the image data input from the interface according to the data signal format used by the data driver 120 to convert the converted image data (Data). It prints and controls the data drive at the appropriate time according to the scan.

The timing controller 140 provides various control signals such as a data control signal (DCS) and a gate control signal (GCS) in order to control the data driver 120 and the gate driver 130. Can be printed.

The gate driver 130 sequentially supplies an on voltage or an off voltage scan signal to n gate lines GL1, ..., GLn under the control of the timing controller 140 The n gate lines GL1, ..., GLn are sequentially driven.

The data driver 120 stores the input image data in a memory (not shown) under the control of the timing controller 140, and when a specific gate line is opened, the corresponding image data Data is stored in an analog form. By converting the data voltage Vdata and supplying it to m data lines DL1, ..., DLm, m data lines DL1, ..., DLm are driven.

The data driver 120 may include a plurality of data driving integrated circuits (Data Driver IC, also referred to as a source driver IC), and such a plurality of data driving integrated circuits include tape automated bonding (TAB). : Tape Automated Bonding) or chip-on-glass (COG) is connected to the bonding pad of the display panel 110, or may be formed directly on the display panel 110. In some cases, the display panel ( 110) may be integrated.

The gate driver 130 may be located on only one side of the display panel 110 as shown in FIG. 1, or may be divided into two and located on both sides of the display panel 110, depending on the driving method.

In addition, the gate driver 130 may include a plurality of gate driver ICs, such a plurality of gate driving integrated circuits, a tape automated bonding (TAB) method or a chip-on. It may be connected to a bonding pad of the display panel 110 in a glass (COG) method, or implemented in a GIP (Gate In Panel) type to be formed directly on the display panel 110. In some cases, the display panel It may be integrated and formed in (110).

Circuit elements such as transistors and capacitors are formed in each subpixel formed in the organic light emitting display panel 110 according to the present embodiments. The structure of each of these subpixels will be described again with reference to FIG. 2.

2 is a diagram illustrating two equivalent circuit diagrams for subpixels of the organic light emitting display panel 110 according to embodiments.

Referring to FIG. 2, as described above, each pixel (Pij: i-row j-column pixel, i=1, ..., n, j=1, ..., m) has four subpixels (red subpixels). It consists of a pixel (SPr), a white sub-pixel (SPw), a green sub-pixel (SPg), and a blue sub-pixel (SPb).

Referring to FIG. 2, each of the four sub-pixels (red sub-pixel (SPr), white sub-pixel (SPw), green sub-pixel (SPg), and blue sub-pixel (SPb)) is basically one organic light-emitting diode. It is composed of (OLED: Organic Light Emitting Diode) and a circuit that drives it.

Referring to the left equivalent circuit diagram in FIG. 2, in the case of having a basic circuit part configuration, each subpixel includes one organic light emitting diode (OLED), and two transistors T1 and T2 and one capacitor ( Cstg). That is, each sub-pixel may basically have a 2T (Transistor) 1C (Capacitor) structure.

Referring to the left equivalent circuit diagram of FIG. 2, transistor T1 is a driving transistor that drives an organic light emitting diode (OLED), and is controlled by a voltage applied to a first node (N1), which is a gate node, and is driven. It is connected between the second node N2 and the organic light emitting diode OLED to which the driving voltage EVDD supplied from the driving voltage line (DVL) is applied. Transistor T2 is a switching transistor that controls the voltage of the first node N1 of the transistor T1, and is controlled by the scan signal SCAN applied from the gate line GL, and controls the data voltage Vdata. It is connected between the supplied data line DL and the first node N1 of the transistor T1. The capacitor Cstg is a storage capacitor that maintains a constant voltage for one frame, and is connected between the first node N1 and the second node N2 of the transistor T1.

In the left equivalent circuit diagram of FIG. 2, the transistors T1 and T2 are shown to be P-type transistors, but this is only an example and may be designed as an N-type transistor.

Referring to the right equivalent circuit diagram in FIG. 2, in the case of having a circuit part configuration for luminance compensation, each subpixel includes one organic light-emitting diode (OLED) and three transistors (T1, T2, T3) to drive the same. ) And one capacitor (Cstg). That is, each sub-pixel may basically have a 3T (Transistor) 1C (Capacitor) structure.

Referring to the right equivalent circuit diagram of FIG. 2, transistor T1 is a driving transistor that drives an organic light emitting diode (OLED), and is controlled by a voltage applied to the first node N1, which is a gate node, and is driven. The voltage line (DVL: Driving Voltage Line) is connected between the third node (N3) to which the driving voltage (EVDD) is applied and the organic light emitting diode (OLED). Transistor T2 is a switching transistor that controls the voltage of the first node N1 of the transistor T1, and is controlled by the first scan signal SCAN applied from the first gate line GL1, and is a data voltage. It is connected between the data line DL supplying (Vdata) and the first node N1 of the transistor T1. Transistor T3 controls the voltage of the second node (N2, for example, a source node) of the transistor T1, and is involved in sensing the voltage of the second node (N2) of the transistor T1 for luminance compensation. Transistor), which is controlled by a second scan signal SENSE applied from the second gate line GL2, and a reference voltage (Vref) supplied from a reference voltage line (RVL) is applied. It is connected between the fourth node N4 and the second node N2 of the transistor T1. The capacitor Cstg is a storage capacitor that maintains a constant voltage for one frame, and is connected between the first node N1 and the second node N2 of the transistor T1.

In the equivalent circuit diagram on the right side of FIG. 2, the transistors T1, T2, and T3 are illustrated as being N-type transistors, but this is only an example and may be designed as a P-type transistor.

As described above, organic light-emitting diodes (OLEDs) and transistors are formed in each sub-pixel of the organic light-emitting display panel 110, and these circuit devices are degraded over time, The luminance of the subpixel is reduced as shown in FIG. 3. Here, the deterioration of the pixel element may occur when characteristic values (eg, threshold voltage, mobility, brightness, etc.) of the circuit element change according to the driving time.

Accordingly, each sub-pixel may not have a desired luminance, or a luminance deviation may occur between sub-pixels.

Accordingly, the present embodiments sense the degree of deterioration of the circuit elements (eg, organic light emitting diodes, transistors) of the subpixels constituting each pixel formed in the active region (i.e., by sensing the decrease in luminance of each subpixel), An efficient method capable of compensating for a decrease in luminance of a subpixel constituting each pixel using a sensing result and a structure therefor is disclosed.

In the present embodiments, in order to sense the degree of deterioration of the circuit elements of subpixels constituting each pixel formed in the active region, pixel columns (pixels formed in the same row in the first direction) or pixels formed in the active region In correspondence with each row (pixels formed in the second direction in the same column), a "monitoring pixel (MP)" or a "monitoring pixel set (MPS)" is designated as an active area (A/ It is formed in the "non-active area (N/A)" outside of A).

Here, "one monitoring pixel set MPS" includes two or more monitoring pixels MP. And, "one monitoring pixel (MP)", like the pixel (P), "4 monitoring sub-pixels (MSP: Montoring Sub Pixel, MSPr (red monitoring sub-pixel), MSPw (white monitoring sub-pixel), It consists of "MSPg (green monitoring subpixel), MSPb (blue monitoring subpixel))".

Here, since the monitoring pixel MP is formed in the non-active area N/A, even if it is driven, it is not used for image display. Therefore, from the viewpoint of image display, the monitoring pixel MP corresponds to a dummy pixel.

In addition, artificial degradation stress is applied to each monitoring pixel (MP) or each monitoring pixel set (MPS) formed in the inactive area (N/A), and each monitoring pixel (MP) or each monitoring pixel The degree of degradation of the pixel set MPS is sensed.

At this time, the "degradation stress" artificially applied to each monitoring pixel (MP) or each monitoring pixel set (MPS) is a monitoring belonging to each monitoring pixel (MP) or each monitoring pixel set (MPS). It means artificially causing deterioration of subpixels.

In addition, the "degradation stress" artificially applied to each monitoring pixel (MP) or each set of monitoring pixels (MPS), corresponds to each monitoring pixel (MP) or each set of monitoring pixels (MPS). It indirectly represents the deterioration stress of pixels in the pixel column or pixel row of the active area A/A.

Therefore, sensing the degree of deterioration of each monitoring pixel MP or each monitoring pixel set MPS means an active area A/A corresponding to each monitoring pixel MP or each monitoring pixel set MPS. This is to indirectly sense the degree of deterioration of pixels in the pixel column or pixel row of.

In this way, by sensing the degree of deterioration of each monitoring pixel (MP) or each monitoring pixel set (MPS), and using the sensing result, a pixel corresponding to each monitoring pixel (MP) or each monitoring pixel set (MPS) It compensates for the luminance of subpixels constituting each of the pixels in a column or pixel row.

Below, the arrangement structure of the monitoring pixel (MP) or the monitoring pixel set (MPS) in the non-active area (N/A), and the monitoring pixel (MP) or the monitoring pixel set ( MPS) by applying artificial deterioration stress to each monitoring subpixel (MSP) and sensing the degree of deterioration of the monitoring pixel (MP) or the monitoring pixel set (MPS) in the inactive area (N/A), A method of compensating for the luminance of subpixels constituting each pixel P in the active area A/A will be described.

4 and 5 illustrate an arrangement structure of one monitoring pixel row R or one monitoring pixel column C in the non-active area N/A in the organic light emitting display panel 110 according to the exemplary embodiments. , A diagram showing luminance compensation in the active region A/A using one monitoring pixel row R or one monitoring pixel column C arranged in the non-active region N/A.

Referring to FIG. 4, in the organic light emitting display panel 110, pixels (Pij, i (row number) = 1, ..., n, j (columns) of n rows and m columns) Number) = 1, ..., m) in the non-active area (N/A) corresponding to the outer edge of the active area (A/A), the number of pixel columns in the second direction (eg, horizontal direction) (m There may be as many monitoring pixels (MP1, MP2, ..., MPm) as possible. Here, the pixel columns are 1 column, 2 columns, ..., m columns.

Referring to FIG. 4, monitoring pixels MP1, MP2, ..., MPm as many as the number of pixel columns (m) arranged in a second direction (eg, horizontal direction) in an inactive area (N/A) are It is said to be included in the monitoring pixel row (R).

Referring to FIG. 4, each of the number of monitoring pixels MP1, MP2, ..., MPm as many as the number of pixel columns (m) included in the monitoring pixel row R is periodically driven for each frame. , Deterioration stress data voltage is accumulated and applied to cause deterioration artificially. In the present specification, without allocating a separate sensing period, the monitoring pixel or the monitoring pixel set may be driven together with the pixels in the active area.

As described above, by periodically driving each of the monitoring pixels (MP1, MP2, ..., MPm) every frame, deterioration is artificially generated to the same level as the pixels formed in the active area (A/A). , It makes it possible to more accurately estimate the degree of deterioration of the pixels formed in the active area A/A.

Referring to FIG. 4, the timing controller 140 includes data corresponding to one of data supplied to pixels belonging to a pixel column in which each monitoring pixel is arranged, or pixels belonging to a pixel column in which each monitoring pixel is arranged. Monitoring pixels (MP1, MP2, ... ,) as many as the number of pixel columns (m) arranged in the second direction (eg, horizontal direction) in the inactive area (N/A) by averaging the supplied data. MPm) It is determined as "deterioration stress data" to be supplied to each.

Accordingly, for each of the number of monitoring pixels MP1, MP2, ..., MPm as many as the number of pixel columns (m) arranged in the second direction (eg, horizontal direction) in the non-active area N/A, A data voltage corresponding to one of the data voltages supplied to the pixels in the pixel column in which the monitoring pixel is arranged is applied as a "deterioration stress data voltage", or data supplied to the pixels in the pixel column in which the monitoring pixel is arranged The average data voltage obtained by averaging the voltages may be applied as the "deterioration stress data voltage".

Referring to FIG. 4, each of the monitoring pixels MP1, ..., MPm included in the number of pixel columns (m) in the monitoring pixel row R represents the degree of deterioration of the pixels arranged in the corresponding pixel column. It is a dummy pixel, and a data voltage generated based on a data voltage supplied to pixels arranged in a corresponding pixel column is accumulated and applied as a deterioration stress data voltage.

Referring to FIG. 4, when the monitoring pixel MPj corresponding to column j is described in detail, the data driver 120 applies the "deterioration stress data voltage" determined by the timing controller 140 to the monitoring pixel corresponding to column j. By artificially applying it to (MPj), deterioration of the monitoring pixel (MPj) corresponding to column j is artificially generated.

Accordingly, the sensing configuration senses the degree of deterioration of the monitoring pixel MPj corresponding to column j and outputs sensing data. Here, the sensing configuration may vary according to the sensing method. In the present embodiments, as an example, a voltage sensing method and an illuminance (luminance) sensing method are disclosed. In the case of the voltage sensing method, as a sensing configuration, a sensing line and a sensing unit are included, and in the case of the illuminance sensing method, It includes an illuminance sensor and a sensing unit. This sensing configuration will be described in more detail with reference to FIGS. 12 and 13.

Thereafter, the compensation configuration may receive sensing data and compensate for luminance of n pixels P1j, P2j, ..., P1n formed in the j column in the active area A/A. Here, the compensation configuration includes a compensation unit that compensates for luminance using the sensing data output from the sensing configuration. This compensation configuration will be described in more detail with reference to FIGS. 12 and 13.

In this specification, sensing the degree of deterioration of a pixel has the same meaning as sensing the degree of deterioration of the subpixels constituting the pixel, and sensing the voltage of a specific node of each circuit element of the subpixels constituting the pixel Or, it may have the same meaning as sensing characteristic values (eg, threshold voltage, mobility, luminance, etc.) of each circuit element of the subpixels constituting the pixel.

In addition, in this specification, compensating for the luminance of a pixel has the same meaning as compensating for the luminance of subpixels constituting the pixel, and compensating for a characteristic value of each circuit element of the subpixels constituting the pixel, or It may have the same meaning as compensating (changing) data supplied to the subpixels constituting the.

Referring to FIG. 5, in the organic light emitting display panel 110, pixels (Pij, i (row number) = 1, ..., n, j (columns) of n rows and m columns) Number) = 1, ..., m) in the non-active area (N/A) corresponding to the outer edge of the active area (A/A), the number of pixel rows in the first direction (eg, vertical direction) (n There may be as many monitoring pixels (MP1, MP2, ..., MPn) as possible. Here, the pixel rows are 1 row, 2 rows, ..., n rows.

Referring to FIG. 5, monitoring pixels MP1, MP2, ..., MPn as many as the number of pixel rows (n) arranged in a first direction (eg, vertical direction) in an inactive area (N/A) are It is said to be included in the monitoring pixel column (C).

Referring to FIG. 5, each of the monitoring pixels MP1, MP2, ..., MPn as many as the number of pixel rows (n) included in the monitoring pixel column C is periodically driven for each frame. , Deterioration stress data voltage is accumulated and applied to cause deterioration artificially.

Referring to FIG. 5, the timing controller 140 includes data corresponding to one of data supplied to pixels in a pixel row in which each monitoring pixel is arranged, or a pixel in a pixel row in which each monitoring pixel is arranged. Monitoring pixels (MP1, MP2, ..) as much as the number of pixel rows (n) arranged in the first direction (eg, vertical direction) in the non-active area (N/A) by averaging the data supplied to them. ., MPn) It is determined as "deterioration stress data" to be supplied to each.

Accordingly, each of the number of monitoring pixels MP1, MP2, ..., MPn as many as the number of pixel rows (n) arranged in the first direction (eg, vertical direction) in the non-active area N/A, A data voltage corresponding to one of the data voltages supplied to the pixels in the pixel row in which the monitoring pixel is arranged is applied as a "deterioration stress data voltage" or supplied to the pixels in the pixel row in which the monitoring pixel is arranged. An average data voltage obtained by averaging the data voltages obtained may be applied as a "deterioration stress data voltage".

Referring to FIG. 5, each of the monitoring pixels MP1, ..., MPn as many as the number of pixel rows (n) included in the monitoring pixel column C indicates the degree of deterioration of the pixels arranged in the corresponding pixel row. A data voltage that is a representative dummy pixel and is generated based on a data voltage supplied to pixels arranged in a corresponding pixel row is accumulated and applied as a deterioration stress data voltage.

Referring to FIG. 5, when the monitoring pixel MPi corresponding to row i is described in detail, the data driver 120 applies the deterioration stress data voltage determined by the timing controller 140 to the monitoring pixel corresponding to row i. Artificially applied to (MPi), causing deterioration artificially.

Accordingly, the sensing configuration senses the degree of deterioration of the monitoring pixel MPi corresponding to row i, and outputs sensing data.

Thereafter, the compensation configuration may receive sensing data and compensate for luminance of m pixels Pi1, Pi2, ..., Pim formed in the i row in the active area A/A.

As described above, in order to indirectly sense the degree of deterioration of m×n pixels, that is, 4×m×n subpixels formed in the active area A/A of the organic light emitting display panel 110, When arranging a plurality of monitoring pixels MP in the area N/A, the arrangement structure of FIG. 4 (one monitoring pixel row (R) structure) or the arrangement structure of FIG. 5 (one monitoring pixel column C) Structure) can be used.

In addition, in order to indirectly sense the degree of deterioration of m×n pixels, that is, 4×m×n subpixels formed in the active area A/A of the organic light emitting display panel 110, the inactive area N When arranging a plurality of monitoring pixels MP in /A), in addition to the arrangement structure of one monitoring pixel row R shown in FIG. 4 or the arrangement structure of one monitoring pixel column C shown in FIG. , An arrangement structure of two or more monitoring pixel rows R1, R2, ... or an arrangement structure of two or more monitoring pixel columns C1, C2, ... may be used.

Below, in order to indirectly sense the degree of deterioration of m×n pixels, that is, 4×m×n subpixels formed in the active area A/A of the organic light emitting display panel 110, the inactive area ( N/A) when placing a plurality of monitoring pixels (MP), the arrangement structure of two or more monitoring pixel rows (R1, R2, ...) or of two or more monitoring pixel columns (C1, C2, ...) A method of using the arrangement structure will be described in more detail with reference to FIGS. 6 and 7. However, the arrangement structure of the three monitoring pixel rows R1, R2, ... and the arrangement structure of the three monitoring pixel columns C1, C2, ... will be described as an example.

6 and 7 illustrate three monitoring pixel rows R1, R2, and R3 or three monitoring pixel columns C1 in an inactive area N/A in the organic light emitting display panel 110 according to the embodiments. C2, C3) and an active region using three rows of monitoring pixels (R1, R2, R3) or three columns of monitoring pixels (C1, C2, C3) arranged in the non-active region (N/A) It is a figure showing luminance compensation in A/A).

Referring to FIG. 6, the number of pixel columns outside the active area A/A of the organic light emitting display panel 110, that is, in the non-active area N/A, in a second direction (eg, horizontal direction) As many as (m) monitoring pixel sets (MPS1, MPS2, ..., MPSm) may be arranged.

Referring to FIG. 6, each of the monitoring pixel sets MPS1, MPS2, ..., MPSm as many as the number of pixel columns (m) has three monitoring pixels (maximum degradation monitoring pixels MPja, intermediate degradation monitoring pixels ( MPjb), minimum degradation monitoring pixel (MPjc)).

As described above, by configuring each of the monitoring pixel sets (MPS1, MPS2, ..., MPSm) into three monitoring pixels (maximum/medium/minimum degradation monitoring pixels), different degradations are artificially generated and active It is possible to obtain more accurate sensing data by estimating the degree of deterioration of the pixels formed in the area A/A more precisely and accurately.

Referring to FIG. 6, the maximum degradation monitoring pixel (MPja), the intermediate degradation monitoring pixel (MPjb), and the minimum included in each of the monitoring pixel sets (MPS1, MPS2, ..., MPSm) corresponding to the number of pixel columns (m). The degradation monitoring pixels MPjc are arranged in a first direction (eg, vertical direction).

Referring to FIG. 6, one monitoring of the maximum degradation monitoring pixels (MP1a, ..., MPma) included in each of the monitoring pixel sets (MPS1, MPS2, ..., MPSm) as many as the number of pixel columns (m) Intermediate deterioration monitoring pixels (MP1b, ..., MPmb) in each of the monitoring pixel sets (MPS1, MPS2, ..., MPSm) forming the pixel row (R1) and as many as the number of pixel columns (m) are different. The minimum deterioration monitoring pixels (MP1c, ..., MPSm) included in each of the monitoring pixel sets (MPS1, MPS2, ..., MPSm) as many as one monitoring pixel row (R2) and the number of pixel columns (m) ) To form another row of monitoring pixels R3.

That is, the monitoring pixel arrangement structure of FIG. 6 is an arrangement structure of three monitoring pixel rows R1, R2, and R3.

Referring to FIG. 6, each of the maximum degradation monitoring pixels MP1a, MP2a, ..., MPma as many as the number of pixel columns (m) included in the first monitoring pixel row R1 is in the data driver 120 As a result, the “maximum deterioration stress data voltage” determined by the timing controller 140 is accumulated and applied, and “maximum deterioration” is artificially generated.

Here, the maximum deterioration stress data voltage is the pixel column corresponding to each of the maximum deterioration monitoring pixels MP1a, MP2a, ..., MPma as many as the number of pixel columns (m) included in the first monitoring pixel row R1. This is the maximum data voltage among the data voltages supplied to the belonging pixels.

Taking column j as an example, the maximum degradation monitoring pixel (MPja) in column j included in the first monitoring pixel row (R1) is driven periodically every frame, and corresponds to the maximum degradation monitoring pixel (MPja) in column j. Among the data voltages (Vdata) supplied to n pixels (P1j, P2j, ..., Pnj) belonging to the pixel column (column j), the "maximum deterioration stress data voltage" corresponding to the maximum data voltage is accumulated and applied. , "Maximum deterioration" is artificially accumulated.

Referring to FIG. 6, each of the intermediate degradation monitoring pixels MP1b, MP2b, ..., MPmb as many as the number of pixel columns (m) included in the second monitoring pixel row R2 is in the data driver 120 As a result, the “intermediate deterioration stress data voltage” determined by the timing controller 140 is accumulated and applied, and “intermediate deterioration” is artificially generated.

Here, the intermediate deterioration stress data voltage is applied to the pixel columns corresponding to each of the intermediate deterioration monitoring pixels MP1b, MP2b, ..., MPmb as many as the number of pixel columns (m) included in the second monitoring pixel row R2. This is the average of the data voltages supplied to the pixels to which it belongs.

Taking column j as an example, the intermediate deterioration monitoring pixel MPjb in column j included in the second monitoring pixel row R2 is periodically driven by the data driver 120 every frame, but intermediate deterioration in column j "Intermediate deterioration stress data corresponding to the average data voltage of the data voltage (Vdata) supplied to n pixels (P1j, P2j, ..., Pnj) belonging to the pixel column (row j) corresponding to the monitoring pixel (MPjb) Voltage" is accumulated and applied, and "intermediate deterioration" is artificially accumulated and generated.

Referring to FIG. 6, each of the minimum degradation monitoring pixels MP1c, MP2c, ..., MPmc as many as the number of pixel columns (m) included in the third monitoring pixel row R3 is in the data driver 120 As a result, the data driver 120 is periodically driven for every frame, and the “minimum deterioration stress data voltage” determined by the timing controller 140 is accumulated and applied, so that “minimum deterioration” is artificially generated.

Here, the minimum deterioration stress data voltage is the pixel column corresponding to each of the minimum deterioration monitoring pixels MP1c, MP2c, ..., MPmc as many as the number of pixel columns (m) included in the third monitoring pixel row R3. This is the minimum data voltage among the data voltages supplied to the belonging pixels.

Taking column j as an example, the minimum degradation monitoring pixel (MPjc) in column j included in the third monitoring pixel row (R3) is periodically driven every frame, corresponding to the minimum degradation monitoring pixel (MPjc) in column j. Among the data voltages (Vdata) supplied to n pixels (P1j, P2j, ..., Pnj) belonging to the pixel column (column j), the "minimum deterioration stress data voltage" corresponding to the minimum data voltage is accumulated and applied. , "Minimal deterioration" is artificially accumulated.

6, the data driver 120, for each column, the maximum deterioration monitoring pixel (MPja, j = 1, 2, ..., m), the intermediate deterioration monitoring pixel (MPjb, j = 1, 2, ..., m), minimum degradation monitoring pixels (MPjc, j=1, 2, ..., m), respectively, the maximum degradation stress data voltage determined by the timing controller 140, the intermediate degradation stress data voltage, and the minimum degradation The stress data voltage is artificially applied.

Referring to FIG. 6, each of the monitoring pixel sets MPS1, ..., MPSm as many as the number of pixel columns (m) has three degrees of deterioration (maximum deterioration degree, intermediate deterioration degree) of pixels arranged in a corresponding pixel row. , The minimum degree of deterioration), and the three data voltages created based on the data voltages supplied to the pixels arranged in the corresponding pixel columns are the deterioration stress data voltages (maximum deterioration stress data voltage, intermediate deterioration stress). Data voltage and minimum deterioration stress data voltage) are accumulated and applied.

Thereafter, the sensing configuration is the maximum degradation monitoring pixel (MPja, j=1, 2, ..., m), the intermediate degradation monitoring pixel (MPjb, j=1, 2, ..., m), the minimum degradation monitoring pixel. (MPjc, j=1, 2, ..., m) The degree of deterioration at each is sensed and the sensing data is output.

Accordingly, the compensation configuration may receive sensing data and compensate for luminance of n pixels P1j, P2j, ..., P1n formed in each column in the active area A/A.

At this time, the compensation configuration is the maximum degree of deterioration of the maximum deterioration monitoring pixel (MPja, j=1, 2, ..., m), and the middle deterioration monitoring pixel (MPjb, j=1, 2, ..., m). The luminance of n pixels (P1j, P2j, ..., P1n) formed in each column, taking into account the degree of intermediate degradation and the minimum degradation monitoring pixels (MPjc, j=1, 2, ..., m) A gain corresponding to the amount of compensation for compensation is calculated, and compensation data Data′ is generated in a form in which the calculated gain is multiplied by the original data, and supplied to the data driver 120.

Referring to FIG. 7, the number of pixel rows in a first direction (eg, vertical direction) outside the active area A/A of the organic light emitting display panel 110, that is, in the non-active area N/A. There may be (n) as many monitoring pixel sets (MPS1, MPS2, ..., MPSn) arranged.

Referring to FIG. 7, each of the monitoring pixel sets MPS1, MPS2, ..., MPSn as many as the number of pixel rows (n) has three monitoring pixels (maximum degradation monitoring pixel MPIa, intermediate degradation monitoring pixel ( MPib), minimum degradation monitoring pixel (MPic)).

Referring to FIG. 7, the maximum degradation monitoring pixel (MPia), the intermediate degradation monitoring pixel (MPib), and the minimum included in each of the monitoring pixel sets MPS1, MPS2, ..., MPSn as many as the number of pixel rows (n). The degradation monitoring pixels MPic are disposed in a second direction (eg, horizontal direction).

Referring to FIG. 7, one monitoring of the maximum degradation monitoring pixels MP1a, ..., MPna included in each of the monitoring pixel sets MPS1, MPS2, ..., MPSn as much as the number of pixel rows (n) Intermediate deterioration monitoring pixels (MP1b, ..., MPnb) included in each of the monitoring pixel sets (MPS1, MPS2, ..., MPSn) that make up the pixel column (C1) and have the number of pixel rows (n) are different. The minimum deterioration monitoring pixels (MP1c, ..., MPSn) included in each of the monitoring pixel sets (MPS1, MPS2, ..., MPSn) as many as one monitoring pixel column (C2) and the number of pixel rows (n) ) To form another column of monitoring pixels (C3).

That is, the arrangement structure of the monitoring pixels in FIG. 7 is the arrangement structure of the three monitoring pixel columns C1, C2, and C3.

Referring to FIG. 7, each of the maximum deterioration monitoring pixels MP1a, MP2a, ..., MPna as many as the number of pixel rows (n) included in the first monitoring pixel column C1 is in the data driver 120 As a result, the “maximum deterioration stress data voltage” determined by the timing controller 140 is accumulated and applied, and “maximum deterioration” is artificially generated.

Here, the maximum deterioration stress data voltage is a pixel row corresponding to each of the maximum deterioration monitoring pixels MP1a, MP2a, ..., MPna as much as the number of pixel rows (n) included in the first monitoring pixel column C1. This is the maximum data voltage among the data voltages supplied to the pixels belonging to.

Taking row i as an example, the maximum deterioration monitoring pixel MPia in row i included in the first monitoring pixel column C1 is driven periodically every frame, but the maximum deterioration monitoring pixel MPia in row i Among the data voltages (Vdata) supplied to m pixels (Pi1, Pi2, ..., Pim) belonging to the pixel row (row i) corresponding to, the "maximum deterioration stress data voltage" corresponding to the maximum data voltage is accumulated. When applied, "maximum deterioration" is artificially accumulated and occurs.

Referring to FIG. 7, each of the intermediate degradation monitoring pixels MP1b, MP2b, ..., MPnb as many as the number of pixel rows (n) included in the second monitoring pixel column C2 is in the data driver 120. As a result, the “intermediate deterioration stress data voltage” determined by the timing controller 140 is accumulated and applied, and “intermediate deterioration” is artificially generated.

Here, the intermediate deterioration stress data voltage is a pixel row corresponding to each of the intermediate deterioration monitoring pixels MP1b, MP2b, ..., MPnb as much as the number of pixel rows (n) included in the second monitoring pixel column C2. This is the data voltage obtained by the average of the data voltages supplied to the pixels belonging to the.

Taking the i row as an example, the intermediate deterioration monitoring pixel MPib of row i included in the second monitoring pixel column C2 is periodically driven by the data driver 120 for every frame, Medium Deterioration Monitoring "Medium deterioration, which corresponds to the average data voltage of the data voltage (Vdata) supplied to m pixels (Pi1, Pi2, ..., Pim) belonging to the pixel row (row i) corresponding to the pixel MPib) Stress data voltage" is accumulated and applied, and "intermediate deterioration" is artificially accumulated and generated.

Referring to FIG. 7, each of the minimum deterioration monitoring pixels MP1c, MP2c, ..., MPnc as many as the number of pixel rows (n) included in the third monitoring pixel column C3 is in the data driver 120 As a result, the data driver 120 is periodically driven for every frame, and the “minimum deterioration stress data voltage” determined by the timing controller 140 is accumulated and applied, so that “minimum deterioration” is artificially generated.

Here, the minimum deterioration stress data voltage is a pixel row corresponding to each of the minimum deterioration monitoring pixels MP1c, MP2c, ..., MPnc as much as the number of pixel rows (n) included in the third monitoring pixel column C3. This is the minimum data voltage among the data voltages supplied to the pixels belonging to.

Taking row i as an example, the minimum deterioration monitoring pixel MPic in row i included in the third monitoring pixel column C3 is periodically driven every frame, so that the minimum deterioration monitoring pixel MPic in row i Among the data voltages (Vdata) supplied to m pixels (Pi1, Pi2, ..., Pim) belonging to the pixel row (row i) corresponding to, the "minimum deterioration stress data voltage" corresponding to the minimum data voltage is accumulated. When applied, "minimal deterioration" is artificially accumulated and occurs.

Referring to FIG. 7, the data driver 120 includes, for each row, a maximum degradation monitoring pixel (MPia, i = 1, 2, ..., n), an intermediate degradation monitoring pixel (MPib, i = 1, 2, ..., n), minimum degradation monitoring pixels (MPic, i=1, 2, ..., n), respectively, determined by the timing controller 140, the maximum degradation stress data voltage, the intermediate degradation stress data voltage, and the minimum degradation The stress data voltage is artificially applied.

Referring to FIG. 7, each of the monitored pixel sets MPS1, ..., MPSn as many as the number of pixel rows (n) has three degrees of deterioration (maximum deterioration degree, intermediate deterioration degree) of pixels arranged in a corresponding pixel row. It is a set of dummy pixels representing the degree of deterioration and the minimum degree of deterioration, and the three data voltages created based on the data voltages supplied to the pixels arranged in the corresponding pixel row are the deterioration stress data voltages The deterioration stress data voltage and minimum deterioration stress data voltage) are accumulated and applied.

Thereafter, the sensing configuration is the maximum degradation monitoring pixel (MPia, i=1, 2, ..., n), the intermediate degradation monitoring pixel (MPib, i=1, 2, ..., n), the minimum degradation monitoring pixel. (MPic, i=1, 2, ..., n) The degree of deterioration at each is sensed and the sensing data is output.

Accordingly, the compensation configuration may receive sensing data and compensate for the luminance of m pixels Pi1, Pi2, ..., Pim formed in each row in the active area A/A.

At this time, the compensation configuration is the maximum degree of deterioration of the maximum deterioration monitoring pixel (MPia, i=1, 2, ..., n), and the middle deterioration monitoring pixel (MPib, i=1, 2, ..., n). In consideration of the degree of intermediate degradation and the minimum degree of degradation of the minimum degradation monitoring pixels (MPic, i=1, 2, ..., n), the m pixels (Pi1, Pi2, ..., Pim) formed in each row A gain corresponding to a compensation amount for luminance compensation is calculated, and compensation data Data′ is generated in a form in which the calculated gain is multiplied by the original data, and supplied to the data driver 120.

In the above, for convenience of explanation, the application of the deterioration stress data voltage and the sensing and compensation of the degree of deterioration have been described in units of monitoring pixels. The sensing and compensation of the degree of application and deterioration are performed.

Accordingly, below, application of a deterioration stress voltage in units of monitoring subpixels, sensing and compensation of the degree of deterioration, etc. will be briefly described.

8 to 11 are diagrams for explaining application of a deterioration stress data voltage under the monitoring pixel arrangement structure of FIGS. 4 to 7.

8 illustrates an arrangement structure of monitoring pixels of FIG. 4, that is, m monitoring pixels MP1, MP2, ..., in one row of monitoring pixels R in the organic light emitting display panel 110 according to the exemplary embodiments. MPm) representatively of the monitoring subpixels (red monitoring subpixel (MSPr), white monitoring subpixel (MSPw), green monitoring subpixel (MSPg), blue monitoring subpixel (MSPb)) constituting each of the red monitoring subpixels It is a diagram showing the deterioration stress data voltage V_1H_RED_DATA supplied to (MSPr).

Referring to FIG. 8, of the m monitoring pixels (MP1, MP2, ..., MPm) included in one monitoring pixel row (R), red monitoring among four subpixels constituting the j-column monitoring pixel (MPj) The subpixel MSPr is a data voltage V_RED_(1,j), V_RED_() supplied to each red subpixel SPr of n pixels P1j, P2j, ..., Pnj arranged in the pixel column of column j. 2,j),…, V_RED_(n,j)) may be applied as the deterioration stress data voltage V_1H_RED_DATA.

-V_1H_RED_DATA= Average (V_RED_(1,j), V_RED_(2,j),… , V_RED_(n,j)}

Alternatively, of the four subpixels constituting the j-column monitoring pixel MPj, the red monitoring sub-pixel (MSPr) is the red sub-pixel of each of the n pixels (P1j, P2j, ..., Pnj) arranged in the pixel column of the j column. Data voltages arbitrarily selected among data voltages (V_RED_(1,j), V_RED_(2,j),…, V_RED_(n,j)) supplied to the pixel SPr may be applied as the deterioration stress data voltage (V_1H_RED_DATA). have.

-V_1H_RED_DATA= Select (V_RED_(1,j), V_RED_(2,j),… , V_RED_(n,j)}

As described above, the degradation stress data voltage determined by the timing controller 140 in the red monitoring subpixel MSPr of the j column monitoring pixel MPj is converted into an analog form by the data driver 120 After (V_1H_RED_DATA) is applied, the sensing configuration senses the degree of deterioration of the red monitoring sub-pixel MSPr of the j-column monitoring pixel MPj and outputs the sensing data.

Accordingly, the compensation configuration is based on the sensing data input from the sensing configuration, in the active area A/A, the pixels P1j arranged in the pixel column (column j) corresponding to the column j monitoring pixel MPj, Compensation data for compensating the luminance of the red sub-pixels SPr included in each of P2j, ..., Pnj) is generated and output to the data driver 120.

9 illustrates an arrangement structure of monitoring pixels of FIG. 5, that is, n monitoring pixels MP1, MP2, ..., in one monitoring pixel column C in the organic light emitting display panel 110 according to the embodiments. MPn) representatively of the monitoring subpixels (red monitoring subpixel (MSPr), white monitoring subpixel (MSPw), green monitoring subpixel (MSPg), blue monitoring subpixel (MSPb)) constituting each of the blue monitoring subpixels It is a figure showing the deterioration stress data voltage V_1H_BLUE_DATA supplied to (MSPb).

Referring to FIG. 9, among the n monitoring pixels (MP1, MP2, ..., MPn) included in one monitoring pixel column (C), blue monitoring among four subpixels constituting the i-row monitoring pixel MPi The subpixel MSPb is a data voltage V_BLUE_(i,1) supplied to the blue subpixels SPb of each of the m pixels Pi1, Pi2, ..., Pim arranged in the pixel row of the i row, The average data voltage of V_BLUE_(i,2),…, V_BLUE_(i,m)) may be applied as the deterioration stress data voltage V_1H_BLUE_DATA.

-V_1H_BLUE_DATA= Average (V_BLUE_(i,1),V_BLUE_(i,2),… ,V_BLUE_(i,m)}

Alternatively, of the four subpixels constituting the i-row monitoring pixel MPi, the blue monitoring sub-pixel (MSPb) is each of m pixels (Pi1, Pi2, ..., Pim) arranged in the i-row pixel row. A data voltage arbitrarily selected among data voltages (V_BLUE_(i,1), V_BLUE_(i,2),…, V_BLUE_(i,m)) supplied to the blue subpixel SPb is applied as the deterioration stress data voltage (V_1H_BLUE_DATA) You can also receive.

-V_1H_BLUE_DATA=Select (V_BLUE_(i,1), V_BLUE_(i,2),… , V_BLUE_(i,m)}

As described above, the degradation stress data voltage determined by the timing controller 140 in the blue monitoring subpixel MSPb of the i row monitoring pixel MPi is converted into an analog form by the data driver 120 After (V_1H_BLUE_DATA) is applied, the sensing configuration senses the degree of deterioration of the blue monitoring subpixel MSPb of the i-row monitoring pixel MPi and outputs the sensing data.

Accordingly, the compensation configuration is based on the sensing data input from the sensing configuration, in the active area A/A, the pixels Pi1, which are arranged in the pixel row (row i) corresponding to the row i monitoring pixel MPi, Compensation data for compensating the luminance of the blue subpixels SPb included in each of Pi2, ..., Pim) is generated and output to the data driver 120.

10 illustrates m monitoring pixel sets MPS1 under the monitoring pixel structure of FIG. 6, that is, the arrangement structure of three monitoring pixel rows R1, R2, R3 in the organic light emitting display panel 110 according to the embodiments. , MPS2, ..., MPSm) monitoring subpixels (red monitoring subpixel (MSPr)) constituting each of the three monitoring pixels (maximum deterioration monitoring pixel, medium deterioration monitoring pixel, minimum deterioration monitoring pixel) included in each A diagram showing the deterioration stress data voltage V_1H_RED_DATA supplied to the red monitoring subpixel MSPr, typically among the white monitoring subpixel MSPw, the green monitoring subpixel MSPg, and the blue monitoring subpixel MSPb.

Referring to FIG. 10, among the m maximum degradation monitoring pixels MP1a, MP2a, ..., MPma included in the first monitoring pixel row R1, that is, the maximum degradation monitoring pixel row R1, the j-column monitoring pixel Of the four subpixels constituting (MPja), the red monitoring subpixel (MSPr) is supplied to each red subpixel (SPr) of n pixels (P1j, P2j, ..., Pnj) arranged in the pixel column of column j. The maximum data voltage among the data voltages V_RED_(1,j), V_RED_(2,j), …, V_RED_(n,j)) may be applied as the maximum deterioration stress data voltage V_1H_RED_DATA.

-V_1H_RED_DATA= Max (V_RED_(1,j), V_RED_(2,j),… , V_RED_(n,j)}

The second monitoring pixel row (R2), that is, the j-column monitoring pixel (MPjb) among the m intermediate degradation monitoring pixels (MP1b, MP2b, ..., MPmb) included in the intermediate degradation monitoring pixel row (R2). Of the four subpixels, the red monitoring subpixel (MSPr) is the data voltage V_RED_(V_RED_() supplied to the red subpixels SPr of each of the n pixels (P1j, P2j, ..., Pnj) arranged in the pixel column of column j. 1,j), V_RED_(2,j), …, V_RED_(n,j)) may be applied as the average deterioration stress data voltage V_1H_RED_DATA.

-V_1H_RED_DATA= Average (V_RED_(1,j), V_RED_(2,j),… , V_RED_(n,j)}

Among the m minimum deterioration monitoring pixels (MP1c, MP2c, ..., MPmc) included in the third monitoring pixel row (R3), that is, the minimum deterioration monitoring pixel row (R3), the j-column monitoring pixel (MPjc) is formed. Of the four subpixels, the red monitoring subpixel (MSPr) is the data voltage V_RED_(V_RED_() supplied to the red subpixels SPr of each of the n pixels (P1j, P2j, ..., Pnj) arranged in the pixel column of column j. 1,j), V_RED_(2,j), …, V_RED_(n,j)), the minimum data voltage may be applied as the minimum deterioration stress data voltage V_1H_RED_DATA.

-V_1H_RED_DATA= Mjn (V_RED_(1,j), V_RED_(2,j),… , V_RED_(n,j)}

As described above, by the data driver 120, the red monitoring subpixel MSPr of each of the three monitoring pixels MPja, MPjb, and MPjc constituting the j column monitoring pixel set MPSj is transferred to the timing controller 140. After the maximum/medium/minimum deterioration stress data voltage (V_1H_RED_DATA) in which deterioration stress data determined by the deterioration stress data is converted into an analog form is applied, the sensing configuration is 3 monitoring pixels (MPja, MPjb) constituting the j-column monitoring pixel set (MPSj) , MPjc) Sensing the degree of deterioration of each red monitoring subpixel (MSPr) and outputs sensing data.

Accordingly, the compensation configuration is based on the sensing data received from the sensing configuration, in the active area A/A, the pixels P1j arranged in the pixel column (column j) corresponding to the j column monitoring pixel set MPSj. Compensation data for compensating the luminance of the red subpixels SPr included in each of P2j, ..., Pnj) is generated and output to the data driver 120.

11 illustrates monitoring subpixels (red monitoring subpixels) constituting each of three monitoring pixels included in each of n monitoring pixel sets in a column of three monitoring pixels in the organic light emitting display panel 110 according to the embodiments. (MSPr), a white monitoring sub-pixel (MSPw), a green monitoring sub-pixel (MSPg), a blue monitoring sub-pixel (MSPb)) is a diagram showing the deterioration stress data voltage supplied to the red monitoring sub-pixel (MSPr) representatively.

Referring to FIG. 11, among n monitoring pixels MP1a, MP2a, ..., MPna included in a first monitoring pixel column C1, that is, a maximum degradation monitoring pixel column C1, an i-row monitoring pixel MPia ), the red monitoring subpixel (MSPr) is supplied to each red subpixel (SPr) of m pixels (Pi1, Pi2, ..., Pim) arranged in the pixel row of row i. The maximum data voltage among the data voltages V_RED_(i,1), V_RED_(i,2), …, V_RED_(i,m)) may be applied as the maximum deterioration stress data voltage V_1H_RED_DATA.

-V_1H_RED_DATA= Max (V_RED_(i,1), V_RED_(i,2),… , V_RED_(i,m)}

In addition, among the n monitoring pixels (MP1b, MP2b, ..., MPnb) included in the second monitoring pixel column (C2), that is, the intermediate degradation monitoring pixel column (C2), the i-row monitoring pixel (MPib) is configured. Of the four subpixels, the red monitoring subpixel (MSPr) is the data voltage supplied to each red subpixel (SPr) of m pixels (Pi1, Pi2, ..., Pim) arranged in the pixel row of row i ( The average data voltage of V_RED_(i,1), V_RED_(i,2),…, V_RED_(i,m)) may be applied as the intermediate deterioration stress data voltage V_1H_RED_DATA.

-V_1H_RED_DATA= Average (V_RED_(i,1), V_RED_(i,2),… , V_RED_(i,m)}

In addition, among the n monitoring pixels (MP1c, MP2c, ..., MPnc) included in the third monitoring pixel column (C3), that is, the minimum degradation monitoring pixel column (C3), the i-row monitoring pixel (MPic) is configured. Of the four subpixels, the red monitoring subpixel (MSPr) is the data voltage supplied to each red subpixel (SPr) of m pixels (Pi1, Pi2, ..., Pim) arranged in the pixel row of row i ( The minimum data voltage among V_RED_(i,1), V_RED_(i,2), …, V_RED_(i,m)) may be applied as the minimum deterioration stress data voltage V_1H_RED_DATA.

-V_1H_RED_DATA= Min (V_RED_(i,1), V_RED_(i,2),… , V_RED_(i,m)}

As described above, by the data driver 120, the red monitoring pixels MSPr of each of the three monitoring pixels MPia, MPib, and MPic constituting the i row monitoring pixel set MPSi are transferred to the timing controller 140. After the maximum/medium/minimum deterioration stress data voltage (V_1H_RED_DATA) in which deterioration stress data determined by the deterioration stress data is converted into an analog form is applied, the sensing configuration is three monitoring pixels (MPia, MPib) constituting the i-row monitoring pixel set (MPSi). , MPic) The sensing data is output by sensing the degree of deterioration of each red monitoring subpixel MSPr.

Accordingly, the compensation configuration is based on the sensing data received from the sensing configuration, in the active area A/A, the pixels Pi1 arranged in the pixel row (row i) corresponding to the row i monitoring pixel set MPSi. Compensation data for compensating the luminance of the red sub-pixel SPr included in each of, Pi2, ..., Pim) is generated and output to the data driver 120.

In the following, the sensing configuration and the compensation configuration described above will be described in more detail with reference to FIGS. 12 and 13.

Prior to the description with reference to FIGS. 12 and 13, the sensing configuration may vary according to the sensing method, and the sensing method includes a voltage sensing method, a sensing line and a sensing unit, and the sensing method is an illuminance sensing method. , An illuminance sensor and a sensing unit.

First, the sensing configuration and compensation configuration for the case of the voltage sensing method as the sensing method will be described with reference to FIG. 12, and then, the sensing configuration and the compensation configuration for the case where the sensing method is the illuminance sensing method, FIG. 13 This will be described with reference to.

12 is a configuration diagram for sensing and luminance compensation based on a voltage sensing method using a monitoring sub-pixel (MSP) to which a deterioration stress data voltage is applied in the organic light emitting display device 100 according to embodiments.

Referring to FIG. 12, an example is given that the monitoring subpixel MSP has a 3T1C structure among the two subpixel structures (two equivalent circuit diagrams) shown in FIG. 2.

Referring to FIG. 12, a data voltage is applied through a data line DL, which becomes a deterioration stress data voltage.

This deterioration stress data voltage is applied to the gate node N1 of the transistor T1, which is a driving transistor, when the transistor T2 is turned on. Accordingly, the transistors T1, T2, and T3 of the monitoring subpixel and the organic light emitting diode OLED are subjected to deterioration stress.

Such deterioration stress is accumulated and applied to the monitoring subpixels every frame, and thus deterioration stress is applied under almost the same conditions as general subpixels for image display.

Referring to FIG. 12, the degree of deterioration of the organic light-emitting diode (OLED) may be determined according to how high luminance the organic light-emitting diode (OLED) emits or how long it emits light, which flows to the organic light-emitting diode (OLED). It is related to how much current flows or how long it flows.

Accordingly, in FIG. 12, by sensing the voltage of the anode electrode of the organic light-emitting diode OLED, that is, the second node N2 (eg, the source node) of the transistor T1 that determines the current flowing through the organic light-emitting diode OLED. , It is possible to sense the degree of deterioration of the organic light emitting diode (OLED).

In addition, after applying a certain voltage to the first node N1 and the second node N2 of the transistor T1, only the second node N2 is floated, and the voltage of the second node N2 of the transistor T1 is Is boosted, and when the voltage of the second node N2 of the transistor T1 rises and then saturates, the voltage of the second node N2 of the transistor T1 at this time is sensed. It is also possible to sense a threshold voltage or mobility enabling the degree of deterioration.

Referring to FIG. 12, in order to compensate for the luminance of subpixels formed in the active area A/A corresponding to the monitoring subpixel based on sensing the voltage of a specific node of the circuit element in the monitoring subpixel, organic light emission The display device 100 includes a sensing line 1210, a sensing unit 1220, a compensation unit 1230, and the like.

The sensing line 1210 is formed on the organic light emitting display panel 110, and is individually or separately from a specific node of a circuit element in the monitoring subpixels MSPr, MSPw, MSPg, MSPb constituting each of the monitoring pixels MS. Shared and connected. Here, the specific node of the circuit device may be a specific node N2 of the driving transistor in FIG. 12 or an anode electrode of the organic light emitting diode.

Alternatively, the sensing line 1210 is formed on the organic light-emitting display panel 110 and includes three monitoring pixels (maximum deterioration monitoring pixels, intermediate deterioration monitoring pixels, and minimum deterioration monitoring pixels) included in the monitoring pixel set MPS. The monitoring subpixels (MSPr, MSPw, MSPg, MSPb) included in the are connected individually or shared with a specific node of the circuit device. Here, the specific node of the circuit device may be a specific node N2 of the driving transistor in FIG. 12 or an anode electrode of the organic light emitting diode.

The sensing line 1210 may use a reference voltage line RVL that supplies a reference voltage Vref to a subpixel formed in the active region A/A.

The sensing unit 1220 senses a voltage of a specific node (eg, N2) of a circuit element in the monitoring subpixel through the sensing line 1210, converts the sensed voltage into a digital form, and outputs sensing data.

The compensation unit 1230 receives the sensing data output from the sensing unit 1220, and based on the received sensing data, each of the subpixels constituting each of the plurality of pixels disposed in the active area A/A. By determining the compensation amount of the data to be supplied, and compensating the data to be supplied to each of the subpixels constituting each of the plurality of pixels arranged in the active area (A/A) according to the determined compensation amount, and outputting the compensated data, active A luminance compensation process may be performed on each of the subpixels constituting each of the plurality of pixels arranged in the area A/A.

Referring to FIG. 12, the sensing unit 1220 may be an analog digital converter (ADC) included in each data driving integrated circuit. The compensation unit 1230 may be included in the timing controller 1230.

According to the voltage sensing method and compensation based on the voltage sensing method described above with reference to FIG. 12, since the sensing operation and compensation are performed based on voltage information that is easy to operate in a circuit, efficient sensing and compensation processing may be possible.

13 is a configuration diagram for sensing and luminance compensation based on an illuminance sensing method by using a monitoring subpixel (MSP) to which a deterioration stress data voltage is applied in the organic light emitting display device 100 according to the exemplary embodiments.

Referring to FIG. 13, an example is given that the monitoring subpixel MSP has a 2T1C structure among the two subpixel structures (two equivalent circuit diagrams) shown in FIG. 2.

Referring to FIG. 13, a data voltage is applied through a data line DL, which becomes a deterioration stress data voltage.

This deterioration stress data voltage is applied to the gate node N1 of the transistor T1, which is a driving transistor, when the transistor T2 is turned on. Accordingly, the transistors T1 and T2 and the organic light emitting diode OLED of the monitoring subpixel are subjected to deterioration stress.

Such deterioration stress is accumulated and applied to the monitoring subpixels every frame, and thus deterioration stress is applied under almost the same conditions as general subpixels for image display.

As described above, when the monitoring subpixel is subjected to deterioration stress, the luminance of the organic light emitting diode (OLED) in the monitoring subpixel is lower than the expected luminance.

Therefore, in the case of the illuminance sensing method, the brightness of the organic light-emitting diode (OLED) is sensed using the illuminance sensor 1310, and the brightness expected to be sensed (the brightness that should come out when the deterioration stress voltage is applied) and In comparison, the degree of deterioration of the organic light-emitting diode (OLED) is sensed through how much the luminance has fallen.

Referring to FIG. 13, based on this illuminance sensing method, a subpixel formed in the active area A/A corresponding to the monitoring subpixel by sensing the luminance of the organic light emitting diode (OLED) in the monitoring subpixel. In order to compensate for luminance, the organic light emitting display device 100 includes an illuminance sensor 1310, a sensing unit 1320, a compensation unit 1330, and the like.

The illuminance sensor 1310 senses the brightness of the organic light emitting diode formed in the monitoring subpixels constituting each of the monitoring pixels or the monitoring subpixels constituting each of the three monitoring pixels included in the monitoring pixel set. Here, the illuminance sensor 1310 may be a light detection sensor.

The sensing unit 1320 outputs sensing data including information on luminance sensed by the illuminance sensor 1310.

The compensation unit 1330 receives the sensing data output from the sensing unit 1220, and based on the received sensing data, each of the subpixels constituting each of the plurality of pixels disposed in the active area A/A. By determining the compensation amount of the data to be supplied, and compensating the data to be supplied to each of the subpixels constituting each of the plurality of pixels arranged in the active area A/A according to the determined compensation amount, and outputting the compensated data, A luminance compensation process may be performed on each of the subpixels constituting each of the plurality of pixels arranged in the area A/A.

Referring to FIG. 13, the sensing unit 1320 may be an analog digital converter (ADC) included in each data driving integrated circuit. The compensation unit 1330 may be included in the timing controller 140.

As shown in FIG. 13, when sensing the degree of deterioration using the illuminance sensor 1310, direct sensing is possible and more accurate sensing is possible. In addition, subpixels in the active area have a 3T1C structure. Since the 2T1C structure is not implemented as (a structure for directly sensing subpixels in the active area), the organic light emitting display panel 110 can be easily processed.

14 is a diagram illustrating luminance before and after luminance compensation using a monitoring subpixel in the organic light emitting display device 100 according to embodiments.

Referring to FIG. 14, in order to compare the luminance before and after compensation, first, for each of the maximum degradation monitoring pixel MPa, the intermediate degradation monitoring pixel MPb, and the minimum degradation monitoring pixel MPc, the maximum degradation stress and the intermediate degradation Different degrees of deterioration are generated by applying stress and minimum deterioration stress.

In FIG. 14, the first graph is a graph showing the luminance before compensation, and referring to this, the same data voltage is applied to each of the maximum degradation monitoring pixel MPa, the intermediate degradation monitoring pixel MPb, and the minimum degradation monitoring pixel MPc. Authorize it.

At this time, if the deterioration degree of each of the maximum deterioration monitoring pixel MPa, the intermediate deterioration monitoring pixel MPb, and the minimum deterioration monitoring pixel MPc is the same, the same luminance should be displayed.

However, since the maximum deterioration monitoring pixel MPa, the intermediate deterioration monitoring pixel MPb, and the minimum deterioration monitoring pixel MPc have different degrees of deterioration, the same luminance does not appear, and the luminance differs depending on the degree of deterioration.

That is, the maximum degradation monitoring pixel MPa has the greatest reduction in luminance because the maximum degradation occurs artificially.

In the minimum degradation monitoring pixel MPc, the smallest reduction in luminance occurs because the minimum degradation occurs artificially.

Since the intermediate deterioration monitoring pixel MPb has been artificially generated, the luminance of the maximum deterioration monitoring pixel MPa is reduced and the luminance of the minimum deterioration monitoring pixel MPc is reduced.

In FIG. 14, a second graph, that is, as described above, is a graph showing a gain calculated differently according to the degree of deterioration in order to compensate for the difference in luminance decrease according to the difference in the degree of deterioration.

Referring to this graph, when the maximum deterioration occurs and the maximum luminance decreases, that is, when the minimum luminance is generated, the largest gain is calculated and used for data compensation. When the minimum deterioration occurs and the minimum luminance decreases, that is, when the maximum luminance is produced, the smallest gain is calculated and used for data compensation. When intermediate luminance decreases due to intermediate deterioration, that is, when intermediate luminance is produced, an intermediate gain is calculated and used for data compensation.

In FIG. 14, a third graph, that is, a graph showing luminance after data compensation (e.g., processing of multiplying the original data by the gain) using the gain calculated according to the previously calculated degree of deterioration and luminance reduction to be.

Referring to this graph, although each of the maximum deterioration monitoring pixel (MPa), the intermediate deterioration monitoring pixel (MPb), and the minimum deterioration monitoring pixel (MPc) have different degrees of deterioration, the maximum deterioration monitoring pixel (MPa) and the intermediate deterioration monitoring pixel ( It can be seen that the luminance of each of the MPb) and the minimum deterioration monitoring pixel MPc became uniform, so that the luminance deviation was compensated.

Briefly summarized above, the organic light emitting display panel 110 according to the present embodiments includes a plurality of data lines formed in a first direction, a plurality of gate lines formed in a second direction, and an active area (A/ A plurality of pixels P arranged in A) and at least one dummy pixel row or at least one dummy pixel column outside the active area A/A It includes one Monitoring Pixel Row or at least one Monitoring Pixel Column.

In addition, the organic light emitting display device 100 according to the present exemplary embodiment includes a plurality of data lines formed in a first direction, a plurality of gate lines formed in a second direction, and a plurality of data lines disposed in the active area A/A. And at least one monitoring pixel MP corresponding to at least one dummy pixel outside of the active area A/A, and at least one monitoring pixel MP The deterioration stress data voltage is applied.

In addition, the organic light emitting display device 100 according to the present embodiments includes a plurality of data lines formed in a first direction, a plurality of gate lines formed in a second direction, and a plurality of pixels P disposed in the active area. And, two or more monitoring pixels (MP) corresponding to two or more dummy pixels are included outside the active area (A/A), but different deterioration stress data voltages are applied to the two or more monitoring pixels (MP). do.

As an example, when two monitoring pixels MP are applied with different deterioration stress data voltages, different deterioration stress data voltages are, for example, the maximum deterioration stress data voltage and the minimum deterioration stress data voltage mentioned above. I can.

As another example, when the three monitoring pixels MP are applied with different deterioration stress data voltages, different deterioration stress data voltages may be, for example, the maximum deterioration stress data voltage, the intermediate deterioration stress data voltage, and It may be the minimum deterioration stress data voltage.

According to the exemplary embodiments described above, an organic light-emitting display panel 110 having high luminance uniformity and an organic light-emitting display device 100 including the same can be provided.

In addition, according to the present exemplary embodiments, at least one monitor rung pixel MP formed as a dummy pixel in the non-active area N/A without causing unnecessary deterioration of the pixel formed in the active area A/A. Using, an organic light emitting display panel 110 and an organic light emitting display device 100 capable of indirectly estimating the degree of deterioration of a pixel formed in the active area A/A may be provided.

In addition, according to the present embodiments, by using two or more monitor rung pixels MP formed as dummy pixels in the non-active area N/A, the degree of deterioration of the pixel formed in the active area A/A can be detailed. An organic light emitting display panel 110 and an organic light emitting display device 100 that can be accurately estimated may be provided.

Further, according to the present exemplary embodiments, at least one monitor rung pixel MP formed as a dummy pixel in the non-active area N/A without causing any deterioration of the pixel formed in the active area A/A. ) To indirectly sense the degree of deterioration of the pixels formed in the active area (A/A) and, based on the sensing result, enable luminance compensation according to the deterioration of the pixels formed in the active area (A/A). An organic light emitting display panel 110 and an organic light emitting display device 100 may be provided.

The description above and the accompanying drawings are merely illustrative of the technical idea of the present invention, and those of ordinary skill in the technical field to which the present invention pertains, combinations of configurations without departing from the essential characteristics of the present invention Various modifications and variations, such as separation, substitution, and alteration, will be possible. Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but to explain the technical idea, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be interpreted as being included in the scope of the present invention.

100: organic light emitting display device
110: organic light emitting display panel
120: data driver
130: gate driver
140: timing controller
1210: sensing line
1220, 1320: sensing unit
1310: light sensor
1230, 1330: compensation unit

Claims (13)

An organic light-emitting display panel in which a plurality of data lines are formed in a first direction, a plurality of gate lines are formed in a second direction, and a plurality of pixels are disposed in an active area;
A data driver driving the plurality of data lines;
A gate driver driving the plurality of gate lines; And
Including a timing controller for controlling the data driver and the gate driver,
Monitoring pixels or monitoring pixel sets as many as the number of pixel rows or pixel columns are arranged in the first direction or the second direction in the outer portion of the active area of the OLED display panel,
An illuminance sensor for sensing the luminance of the monitoring pixel or the organic light emitting diode disposed in each of the monitoring subpixels included in the monitoring pixel set;
A sensing unit that outputs sensing data including information on luminance sensed by the illuminance sensor; And
The organic light emitting display device further comprises a compensation unit configured to perform a luminance compensation process to change data supplied to each of the subpixels constituting each of the plurality of pixels disposed in the active area based on the sensing data. The method of claim 1,
The monitoring pixels corresponding to the number of pixel rows or the number of pixel columns, or two or more monitoring pixels included in each of the monitoring pixel sets corresponding to the number of pixel rows or the number of pixel columns are periodically driven for each frame. Organic light-emitting display device. delete The method of claim 1,
A sensing line individually connected or shared and connected to a specific node of a circuit element formed in monitoring subpixels constituting each of the monitoring pixels or monitoring subpixels constituting each of three monitoring pixels included in the monitoring pixel set;
A sensing unit that senses the voltage of the specific node through the sensing line and outputs sensing data; And
An organic light emitting display device further comprising: a compensation unit configured to perform luminance compensation processing for each of subpixels constituting each of the plurality of pixels disposed in the active area based on the sensing data. delete The method of claim 1,
When a set of monitoring pixels as many as the number of pixel columns is arranged in the second direction, and three monitoring pixels are included in each of the monitoring pixel sets as many as the number of pixel columns,
The three monitoring pixels are composed of a maximum deterioration monitoring pixel, an intermediate deterioration monitoring pixel, and a minimum deterioration monitoring pixel arranged in the first direction,
A maximum data voltage among data voltages supplied to pixels belonging to a pixel column in which the three monitoring pixels are arranged is supplied to the maximum degradation monitoring pixel,
An average data voltage of data voltages supplied to pixels belonging to a pixel column in which the three monitoring pixels are arranged is supplied to the intermediate deterioration monitoring pixel,
An organic light-emitting display device, wherein a minimum data voltage among data voltages supplied to pixels belonging to a pixel column in which the three monitoring pixels are arranged is supplied to the minimum degradation monitoring pixel. The method of claim 1,
When a set of monitoring pixels as many as the number of pixel rows are arranged in the first direction, and three monitoring pixels are included in each of the monitoring pixel sets as many as the number of pixel rows,
The three monitoring pixels are composed of a maximum deterioration monitoring pixel, an intermediate deterioration monitoring pixel, and a minimum deterioration monitoring pixel arranged in the second direction,
A maximum data voltage among data voltages supplied to pixels in a pixel row in which the three monitoring pixels are arranged is supplied to the maximum degradation monitoring pixel,
An average data voltage of data voltages supplied to pixels belonging to a pixel row in which the three monitoring pixels are arranged is supplied to the intermediate deterioration monitoring pixel,
An organic light-emitting display device, wherein a minimum data voltage among data voltages supplied to pixels belonging to a pixel row in which the three monitoring pixels are disposed is supplied to the minimum degradation monitoring pixel. The method of claim 1,
When as many monitoring pixels as the number of pixel columns are arranged in the second direction,
A data voltage corresponding to one of data voltages supplied to pixels in a pixel column in which the monitoring pixel is arranged is supplied to the monitoring pixel, or
And a data voltage obtained by an average of data voltages supplied to pixels belonging to a pixel column in which the monitoring pixel is arranged is supplied to the monitoring pixel. The method of claim 1,
When monitoring pixels as many as the number of pixel rows are arranged in the first direction,
A data voltage corresponding to one of data voltages supplied to pixels in a pixel row in which the monitoring pixel is arranged is supplied to the monitoring pixel, or
And a data voltage obtained by averaging data voltages supplied to pixels in a pixel row in which the monitoring pixel is disposed is supplied to the monitoring pixel. The method of claim 1,
The monitoring pixel or the monitoring pixel set,
An organic light emitting display device comprising: a dummy pixel or a set of dummy pixels to which a deterioration stress data voltage representing a degree of deterioration of pixels arranged in a corresponding pixel row or pixel column is accumulated and applied. A plurality of data lines formed in the first direction;
A plurality of gate lines formed in the second direction;
A plurality of pixels disposed in the active area; And
At least one dummy pixel row or at least one dummy pixel column is disposed outside the active region,
Further comprising an illuminance sensor for sensing the luminance of the organic light emitting diode disposed in each of the monitoring subpixels included in the dummy pixel included in the at least one dummy pixel row or the at least one dummy pixel column,
An organic light-emitting display panel wherein data is changed according to information on luminance sensed by the illuminance sensor and supplied to subpixels constituting each of the plurality of pixels. A plurality of data lines formed in the first direction;
A plurality of gate lines formed in the second direction;
A plurality of pixels disposed in the active area; And
Including at least one dummy pixel outside the active area,
A deterioration stress data voltage is applied to the at least one dummy pixel,
Further comprising an illuminance sensor for sensing the luminance of the organic light emitting diode disposed in each of the monitoring subpixels included in the at least one dummy pixel,
An organic light-emitting display device wherein data is changed according to information on luminance sensed by the illuminance sensor and supplied to subpixels constituting each of the plurality of pixels. A plurality of data lines formed in the first direction;
A plurality of gate lines formed in the second direction;
A plurality of pixels disposed in the active area; And
Including two or more dummy pixels outside the active area,
Different deterioration stress data voltages are applied to the two or more dummy pixels,
Further comprising an illumination sensor for sensing the luminance of the organic light emitting diode disposed in each of the monitoring subpixels included in each of the two or more dummy pixels,
An organic light-emitting display device wherein data is changed according to information on luminance sensed by the illuminance sensor and supplied to subpixels constituting each of the plurality of pixels.

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