CN117998898A - Display panel, display device and control method thereof - Google Patents
Display panel, display device and control method thereof Download PDFInfo
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- CN117998898A CN117998898A CN202311762009.1A CN202311762009A CN117998898A CN 117998898 A CN117998898 A CN 117998898A CN 202311762009 A CN202311762009 A CN 202311762009A CN 117998898 A CN117998898 A CN 117998898A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
- G09F9/335—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes being organic light emitting diodes [OLED]
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/121—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/122—Pixel-defining structures or layers, e.g. banks
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- H—ELECTRICITY
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/131—Interconnections, e.g. wiring lines or terminals
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/80—Constructional details
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K77/00—Constructional details of devices covered by this subclass and not covered by groups H10K10/80, H10K30/80, H10K50/80 or H10K59/80
- H10K77/10—Substrates, e.g. flexible substrates
- H10K77/111—Flexible substrates
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/04—Structural and physical details of display devices
- G09G2300/0439—Pixel structures
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Abstract
The application provides a display panel, a display device and a control method thereof. Wherein the overhang structure includes a first overhang structure surrounding the main pixel accommodating area, and a second overhang structure surrounding the auxiliary pixel accommodating area in cooperation with the first overhang structure; the first overhang structure comprises a first conductive structure and a first insulating structure shielding the first conductive structure; at least part of the first conductive structure comprises a first conductive part and a second conductive part; a first insulating structure separates the first conductive portion from the second conductive portion; each pixel comprises a main pixel arranged in the main pixel accommodating area and an auxiliary pixel arranged in the auxiliary pixel accommodating area; the cathode of the main pixel is in contact with the first conductive part, and the cathode of the auxiliary pixel is in contact with the second conductive part. The display panel can avoid the situation that the display particles feel after being stretched, and effectively improves the use experience of users.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a display panel, a display device, and a control method thereof.
Background
With the development of display technology, the requirements of people on the display technology are also higher and higher, and the stretchable display panel is widely focused. The conventional stretchable display panel has the problem that the display particles feel after stretching, so that the experience feel of a user is poor when the user views the display panel.
Disclosure of Invention
The application provides a display panel, a display device and a control method thereof, and aims to solve the problem that the use experience of a user is affected due to the display granular feel of the existing stretchable display panel after stretching.
In order to solve the technical problems, the application adopts a technical scheme that: provided is a display panel including:
A flexible substrate having a plurality of non-stretchable regions disposed at intervals and stretchable regions disposed between the non-stretchable regions;
the driving substrate is arranged on the flexible substrate and comprises a rigid region arranged corresponding to the non-stretching region and a flexible region arranged corresponding to the stretchable region;
the pixel definition layer is arranged on one side of the driving substrate and protrudes out of the driving substrate; the pixel definition layer is at least arranged in the flexible region;
The overhang structure is at least arranged on one side of the pixel definition layer, which is away from the driving substrate; the overhang structure includes:
A first overhang structure disposed on the rigid region and surrounding a main pixel accommodating region; the first overhang structure comprises a first conductive structure and a first insulating structure shielding the first conductive structure; the first conductive structure includes a first conductive portion near the main pixel accommodating area and a second conductive portion far from the main pixel accommodating area; the first insulating structure separates the first conductive portion from the second conductive portion;
A second overhang structure arranged on the pixel defining layer and surrounding the first overhang structure to form an auxiliary pixel accommodating area; the second overhang structure comprises a supporting structure and a second insulating structure shielding the supporting structure;
a plurality of pixels including an anode, an organic light emitting layer, and a cathode, which are sequentially stacked in a direction from a direction close to the driving substrate to a direction away from the driving substrate; each pixel comprises a main pixel arranged in the main pixel accommodating area and an auxiliary pixel arranged in the auxiliary pixel accommodating area;
Wherein the main pixel accommodating area and the auxiliary pixel accommodating area are both located on the rigid area of the driving substrate; the cathode of the main pixel is in contact with the first conductive part, and the cathode of the auxiliary pixel is in contact with the second conductive part.
In a specific embodiment, the number of the auxiliary pixels of each of the pixels is one; the first overhang structure is only arranged between the main pixel and the auxiliary pixel in the same pixel; the display panel further includes:
the third overhang structure is arranged on one side of the main pixel, which is away from the auxiliary pixel; the third overhang structure comprises a second conductive structure and a third insulating structure shielding the second conductive structure; the second conductive structure is disposed in contact with the cathode of the main pixel.
In a specific embodiment, the plurality of pixels includes a first pixel, a second pixel, and a third pixel; the number of the auxiliary pixels of the first pixel is two, and the auxiliary pixels are respectively positioned at two sides of the main pixel of the first pixel;
The color of the first pixel is blue;
The colors of the second pixel and the third pixel are respectively selected from one of red and green; and the colors of the second pixel and the third pixel are different from each other.
In a specific embodiment, the number of the auxiliary pixels of each pixel is two, and the auxiliary pixels are respectively positioned at two sides of the main pixel of each pixel; wherein,
For the same said pixel: one first overhang structure is arranged between the two auxiliary pixels and the main pixel; one side of each auxiliary pixel, which is away from the main pixel, is provided with a second overhang structure;
the cathode of the auxiliary pixel overlaps the second insulating structure surface of the second overhang structure on a side facing away from the main pixel.
In a specific embodiment, the pixel definition layer includes a first definition layer disposed on the rigid region and a second definition layer disposed on the flexible region; two second overhang structures which are oppositely arranged in the adjacent pixels are arranged on the second definition layer at intervals.
In a specific embodiment, a plurality of the pixels are sequentially arranged along a first direction perpendicular to the stacking direction; each pixel extends in a second direction perpendicular to the stacking direction; wherein the first direction and the second direction are perpendicular to each other; each pixel further comprises a plurality of anodes arranged at intervals along the second direction;
The auxiliary pixels are arranged on one side and/or two sides of the main pixels along the first direction.
In a specific embodiment, each of the pixels further comprises:
a plurality of sub-pixels sequentially arranged at intervals along a second direction perpendicular to the stacking direction; each of the sub-pixels includes the main pixel and the auxiliary pixel;
the third overhang structures are arranged between adjacent main pixels along the second direction; and cathodes of adjacent main pixels are arranged in contact with the second conductive structure of the third overhang structure;
the third overhang structures are arranged between adjacent auxiliary pixels along the second direction; and cathodes of adjacent auxiliary pixels are arranged in contact with the second conductive structure.
In a specific embodiment, the anode of the main pixel and the anode of the auxiliary pixel are formed by the same film layer; at least part of the first definition layer between the main pixel and the auxiliary pixel is arranged on one side surface of the anode of the pixel, which is away from the driving substrate.
In order to solve the technical problems, the application adopts another technical scheme that: there is provided a display device including the display panel according to any one of the above.
In order to solve the technical problems, the application adopts another technical scheme that: there is provided a control method of a display device including:
a display panel according to any one of the above;
a sensor for detecting a stretching degree of the display panel;
One end of the controller is electrically connected with the sensor and is used for receiving the electric signal of the sensor; the other end of the controller is electrically connected with the second conductive part and is used for controlling a cathode signal input into the cathode of the auxiliary pixel;
the control method of the display device comprises the following steps:
the controller transmits the cathode signal to the cathode of the auxiliary pixel through the second conductive part in response to the sensor detecting that the stretching degree of the display panel is greater than a preset value, so that the auxiliary pixel emits light;
The controller stops the transmission of the cathode signal to the cathode of the auxiliary pixel through the second conductive part to turn off the auxiliary pixel in response to the sensor detecting that the stretching degree of the display panel is less than a preset value.
The embodiment of the application has the beneficial effects that: the present application provides a display panel including a flexible substrate, a driving substrate, a pixel defining layer, an overhang structure, and a plurality of pixels, a display device, and a control method thereof, unlike the prior art. The flexible substrate is provided with a plurality of non-stretching areas and stretchable areas, wherein the non-stretching areas are arranged at intervals, and the stretchable areas are arranged between the non-stretching areas; the driving substrate is arranged on the flexible substrate and comprises a rigid region arranged corresponding to the non-stretching region and a flexible region arranged corresponding to the stretchable region; the pixel definition layer is arranged on one side of the driving substrate and protrudes out of the driving substrate; and the pixel definition layer is at least arranged in the flexible region. The overhang structure is at least arranged on one side of the pixel definition layer, which is away from the driving substrate; wherein the overhang structure comprises a first overhang structure and a second overhang structure; the first overhang structure is arranged on the rigid area and surrounds the main pixel accommodating area; the first overhang structure comprises a first conductive structure and a first insulating structure shielding the first conductive structure; the first conductive structure comprises a first conductive part close to the main pixel accommodating area and a second conductive part far away from the main pixel accommodating area; a first insulating structure separates the first conductive portion from the second conductive portion; the second overhang structure is arranged on the pixel definition layer and surrounds the first overhang structure in a matching way to form an auxiliary pixel accommodating area; the second overhang structure includes a support structure and a second insulating structure shielding the support structure. Each pixel comprises an anode, an organic light-emitting layer and a cathode which are sequentially stacked from a direction close to the driving substrate to a direction far away from the driving substrate; each pixel comprises a main pixel arranged in the main pixel accommodating area and an auxiliary pixel arranged in the auxiliary pixel accommodating area; wherein, the main pixel accommodating area and the auxiliary pixel accommodating area are both positioned on the rigid area of the driving substrate; the cathode of the main pixel is contacted with the first conductive part, and the cathode of the auxiliary pixel is contacted with the second conductive part. By arranging the main pixel and the auxiliary pixel in each pixel, the auxiliary pixel can be made to emit light to compensate the light-emitting brightness of each pixel after the display panel is stretched, so that the situation that the display panel has display granular feel after being stretched is avoided, and the use experience of a user is effectively improved; meanwhile, a first overhang structure with a first conductive part and a second conductive part is arranged between the main pixel and the auxiliary pixel, the cathode of the main pixel and the cathode of the auxiliary pixel are respectively contacted with the first conductive part and the second conductive part, and the first conductive part and the second conductive part are arranged at intervals, so that cathode signals are transmitted to the auxiliary pixel through the second conductive part alone, and the auxiliary pixel can be controlled to emit light only after the display panel is stretched.
Drawings
Fig. 1 is a schematic structural diagram of a display panel according to a first embodiment of the present application;
FIG. 2a is a top view of the display panel of FIG. 1;
FIG. 2b is a schematic diagram of the cathode trace of the structure shown in FIG. 2 a;
FIG. 2c is a cross-sectional view at A in FIG. 2 b;
fig. 3 is a schematic structural diagram of a display panel according to a second embodiment of the present application;
FIG. 4 is a top view of the display panel of FIG. 3;
fig. 5 is a top view of a display panel according to a third embodiment of the present application;
fig. 6 is a top view of a display panel according to a fourth embodiment of the present application;
FIG. 7a is a cross-sectional view of the display panel of FIG. 6 taken along line B-B;
FIG. 7b is a cross-sectional view of the display panel of FIG. 6 taken along line C-C;
Fig. 8 is a schematic structural diagram of a display device according to an embodiment of the application.
Reference numerals illustrate:
100-a display panel; 200-a sensor; 300-a controller; 1-a flexible substrate; 2-driving a substrate; 3-a pixel definition layer; 4-overhang structure; 5-pixels; 6-etching the protective layer; 7-packaging layer; 11-non-stretch zone; 12-stretchable region; 21-rigid region; 22-flexible region; 31-a first defining layer; 32-a second definition layer; 33-a third definition layer; 41-a first overhang structure; 42-a second overhang structure; 43-a third overhang structure; 201-jumper wire; 401-a support structure; 411-a first conductive structure; 412-a first insulating structure; 421-a second insulating structure; 431-a second conductive structure; 432-a third insulating structure; 4111-a first conductive portion; 4112-a second conductive portion; 50-subpixels; 51-main pixels; 52-auxiliary pixels; 53-first pixel; 54-second pixels; 55-a third pixel; 501-anode; 502-an organic light emitting layer; 503-cathode.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The terms "first," "second," "third," and the like in this disclosure are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", and "a third" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. All directional indications (such as up, down, left, right, front, back … …) in the embodiments of the present application are merely used to explain the relative positional relationship, movement, etc. between the components in a particular gesture (as shown in the drawings), and if the particular gesture changes, the directional indication changes accordingly. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
The present application will be described in detail with reference to the accompanying drawings and examples.
Referring to fig. 1-2 c, fig. 1 is a schematic structural diagram of a display panel according to a first embodiment of the present application; FIG. 2a is a top view of the display panel of FIG. 1; FIG. 2b is a schematic diagram of the cathode trace of the structure shown in FIG. 2 a; fig. 2c is a cross-sectional view at a in fig. 2 b. The present application provides a display panel, which may be an Organic Light Emitting Diode (OLED) display panel stretchable under an external force. Specifically, as shown in fig. 1, the display panel may include a flexible substrate 1, a driving substrate 2, a pixel defining layer 3, an overhang structure 4, and a plurality of pixels 5.
Wherein the flexible substrate 1 has a plurality of non-stretched regions 11 arranged at intervals and stretchable regions 12 arranged between the non-stretched regions 11; the flexible substrate 1 is a substrate having stretchable characteristics, which can be stretched in a specific direction and recovered again; the flexible substrate 1 is used to support and protect the various components of the display panel.
The driving substrate 2 is disposed on the flexible substrate 1 for driving the pixels to emit light. Specifically, the drive substrate 2 may include a rigid region 21 disposed corresponding to the non-stretchable region 11 and a flexible region 22 disposed corresponding to the stretchable region 12. Wherein the rigid region 21 of the drive substrate 2 is made of a material having a high modulus of elasticity, which is resistant to deformation, in order to prevent the pixels from being damaged during stretching. The flexible region 22 of the driving substrate 2 is made of a material having a small elastic modulus, which is weak against deformation, and can be stretched in the direction of the applied force by an external force to realize the stretchability of the display panel.
The pixel definition layer 3 is arranged on one side of the driving substrate 2 and protrudes out of the driving substrate 2; and the pixel defining layer 3 is provided at least on the flexible region 22. It will be appreciated that the portion of each film layer of the display panel corresponding to the flexible region 22 of the drive substrate 2 may be deformed under external force to follow the stretching of the flexible region 22, while the portion of each film layer corresponding to the rigid region 21 remains undeformed with the rigid region 21.
The overhang structure 4 is at least partially arranged on one side of the pixel defining layer 3 away from the driving substrate 2, and is used for separating pixels 5 with different colors, so that the problem of pixel crosstalk is avoided; wherein the overhang structure 4 may comprise a first overhang structure 41 and a second overhang structure 42.
Wherein the first overhang structure 41 is arranged on the rigid region 21 and surrounds the main pixel accommodating region. Specifically, the first overhang structure 41 includes a first conductive structure 411 and a first insulating structure 412 shielding the first conductive structure 411; at least part of the first conductive structure 411 includes a first conductive portion 4111 near the main pixel accommodating area and a second conductive portion 4112 far from the main pixel accommodating area; and the first insulating structure 412 separates the first conductive portion 4111 from the second conductive portion 4112. The second overhang structure 42 is disposed on the pixel defining layer 3 and surrounds the first overhang structure 41 to form an auxiliary pixel accommodating area; the second overhang structure 42 includes a support structure 401 and a second insulating structure 421 shielding the support structure 401.
Each pixel 5 may include an anode 501, an organic light emitting layer 502, and a cathode 503, which are sequentially stacked in a direction from the driving substrate 2 toward the driving substrate 2; wherein, the anode 501 is connected with the power line of the anode 501, and the cathode 503 is connected with the power line of the cathode 503, so that the organic light-emitting layer 502 emits light after conducting electricity. Specifically, each pixel 5 includes a main pixel 51 disposed in the main pixel accommodating area, and an auxiliary pixel 52 disposed in the auxiliary pixel accommodating area. It can be appreciated that the first overhang structure 41 having the first conductive portion 4111 and the second conductive portion 4112 is located between the main pixel 51 and the auxiliary pixel 52; the cathode 503 of the main pixel 51 is disposed in contact with the first conductive portion 4111, and the cathode 503 of the auxiliary pixel 52 is disposed in contact with the second conductive portion 4112.
Wherein the main pixel accommodating area and the auxiliary pixel accommodating area are both located on the rigid area 21 of the driving substrate 2; that is, the projection of the main pixel 51 onto the flexible substrate 1 in the lamination direction Z of the display panel (hereinafter referred to as lamination direction Z) and the projection of the auxiliary pixel 52 onto the flexible substrate 1 in the lamination direction Z are both located within the projection of the rigid region 21 onto the flexible substrate 1 in the lamination direction Z. That is, the anode 501 and the organic light emitting layer 502 of the main pixel 51 and/or the auxiliary pixel 52 are completely located within the corresponding range of the rigid region 21, so as to avoid damage to the anode 501 and the organic light emitting layer 502 during stretching of the display panel, which affects the display effect.
In this way, by arranging the main pixel 51 and the auxiliary pixel 52 in each pixel 5, the embodiment of the application can make the auxiliary pixel 52 emit light to compensate the light-emitting brightness of each pixel 5 after the display panel is stretched, thereby avoiding the situation that the display panel has display granular feeling after being stretched and effectively improving the use experience of users; meanwhile, by disposing the first overhang structure 41 having the first conductive portion 4111 and the second conductive portion 4112 between the main pixel 51 and the auxiliary pixel 52, and contacting the cathode 503 of the main pixel 51 and the cathode 503 of the auxiliary pixel 52 with the first conductive portion 4111 and the second conductive portion 4112, respectively, and disposing the first conductive portion 4111 and the second conductive portion 4112 at a distance from each other, the transmission of the cathode 503 signal to the auxiliary pixel 52 through the second conductive portion 4112 alone is achieved, so that the auxiliary pixel 52 can be controlled to emit light only after the display panel is stretched.
As shown in fig. 2a, in a specific embodiment, the plurality of pixels may include a first pixel 53, a second pixel 54, and a third pixel 55, and the first pixel 53, the second pixel 54, and the third pixel 55 each include a main pixel 51 and an auxiliary pixel 52. Wherein, the color of the first pixel 53 may be blue (B), and the colors of the second pixel 54 and the third pixel 55 are respectively selected from one of red (R) and green (G); and the colors of the second pixel 54 and the third pixel 55 are different from each other. The following embodiments of the present application will be described by taking the color of the second pixel 54 as green and the color of the third pixel 55 as red as an example.
Specifically, as shown in fig. 2a, a plurality of pixels are repeatedly arranged in sequence along a first direction X; wherein the second pixel 54 and the third pixel 55 are respectively located at two sides of the first pixel 53 along the first direction X; that is, in the first direction X, a plurality of pixels of different colors are arranged in a manner of "RGBRGB …"; wherein the first direction X is perpendicular to the stacking direction Z of the display panel. And each pixel 5 extends along a second direction Y, which is also perpendicular to the stacking direction, and the first direction X and the second direction Y are perpendicular to each other.
In this embodiment, the number of the auxiliary pixels 52 of each pixel 5 may be two, and the two auxiliary pixels 52 may be disposed on two sides of the main pixel 51 along the first direction X, so that after the display panel is stretched, the auxiliary pixels 52 on two sides of the main pixel 51 can compensate for the luminescence, thereby enhancing the compensation effect.
Referring to fig. 1, further, the anode 501 of the main pixel 51 and the anode 501 of the auxiliary pixel 52 may be formed as the same film layer so as to synchronously transmit the anode 501 signal to the main pixel 51 and the auxiliary pixel 52 belonging to the same pixel; in this way, the auxiliary pixel 52 can be controlled to emit light by controlling whether or not the cathode 503 signal is transmitted to the auxiliary pixel 52, and the emission intensity of the auxiliary pixel 52 is kept consistent with that of the main pixel 51. Specifically, the pixel defining layer 3 includes a first defining layer 31 disposed on the rigid region 21 and a second defining layer 32 disposed on the flexible region 22; wherein the first overhang structure 41 may be disposed on the first definition layer 31 and the second overhang structure 42 is disposed on the second definition layer 32. The first defining layer 31 between the main pixel 51 and the auxiliary pixel 52 may be disposed on a side surface of the anode 501 of the pixel facing away from the driving substrate 2 to separate the organic light emitting layer 502 of the main pixel 51 from the organic light emitting layer 502 of the auxiliary pixel 52.
Further, each pixel 5 may further include a plurality of anodes 501, and the plurality of anodes 501 are equidistantly spaced along the second direction Y. It will be appreciated that the film layer of the portion of the pixel corresponding to each anode 501 and the anode 501 form a single sub-pixel 50; each sub-pixel 50 may be individually illuminated by controlling the anode 501 signal transmitted to each anode 501.
In the present embodiment, referring to fig. 1, for the same pixel 5: a first overhang structure 41 is disposed between the two auxiliary pixels 52 and the main pixel 51, that is, the two first overhang structures 41 are disposed between the main pixel 51 and the two auxiliary pixels 52 in the same pixel, respectively, so as to separate the cathode 503 of the main pixel 51 from the cathode 503 of the two auxiliary pixels 52. Wherein the first overhang structure 41 is disposed on a side surface of the first defining layer 31 facing away from the anode 501; specifically, the first overhang structure 41 may also include a support structure 401 disposed on a surface of the first defining layer 31. The first conductive structure 411 and the first insulating structure 412 are stacked on a side of the support structure 401 facing away from the first defining layer 31, and the first insulating structure 412 is located on a side of the first conductive structure 411 facing away from the support structure 401; the middle portion of the first insulating structure 412 extends along the stacking direction Z toward the support structure 401 and extends to the surface of the support structure 401 to separate the first conductive portion 4111 from the second conductive portion 4112 of the first conductive structure 411, so as to avoid occurrence of signal crosstalk caused by the electrical connection between the cathode 503 of the main pixel 51 and the cathode 503 of the auxiliary pixel 52 and the second conductive portion 4112 through the first conductive portion 4111.
Of course, in other embodiments, the first definition layer 31 may not be disposed on the surface of the anode 501 facing away from the driving substrate 2; the support structure 401 of the first overhang structure 41 may be directly disposed on the surface of the anode 501, and the thickness of the support structure 401 may be increased so that the height of the first overhang structure 41 directly disposed on the surface of the anode 501 is consistent with the height of the first overhang structure 41 disposed on the surface of the first confinement layer 31.
As shown in fig. 1, the two side edges of the first insulating structure 412 protrude from the first conductive structure 411 to form an eave structure, so that when the organic light emitting layer 502 and the cathode 503 are deposited by evaporation, the evaporation angle can be changed by the eave structure to make the cathode 503 cover the organic light emitting layer 502, which is beneficial for the contact and conduction between the cathode 503 and the conductive portion.
In a specific embodiment, for the same pixel 5: the side of both auxiliary pixels 52 facing away from the main pixel 51 is provided with a second overhang structure 42. In addition, two second overhang structures 42 disposed opposite to each other in the adjacent pixels 5 are disposed between the auxiliary pixels 52 of the adjacent two pixels; that is, two second overhang structures 42 disposed opposite to each other in adjacent pixels 5 are disposed on the second definition layer 32 at intervals. Specifically, the two sides of the second insulating structure 421 of the second overhang structure 42 also protrude from the supporting structure 401 to form an eave structure, and the eave structure has the same function as that of the eave structure of the first overhang structure 41, which is specifically referred to above and will not be described herein. The cathode 503 of the auxiliary pixel 52 is overlapped on the surface of the second insulating structure 421 at a side facing away from the first overhang structure 41 along the first direction X to completely cover the organic light emitting layer 502. It will be appreciated that the provision of two second overhang structures 42 between the auxiliary pixels 52 of two adjacent pixels can effectively avoid overlapping of the cathodes 503 of two auxiliary pixels 52 belonging to different pixels, and avoid the signal crosstalk problem.
Of course, in other embodiments, only one second overhang structure 42 may be disposed between the auxiliary pixels 52 of two adjacent pixels to separate the auxiliary pixels 52 of different colors, so as to avoid the occurrence of pixel crosstalk. The cathodes 503 of the two auxiliary pixels 52 may overlap the surface of the second insulating structure 421 of the second overhang structure 42, so long as the cathodes 503 of the two auxiliary pixels 52 are disposed at intervals on the surface of the second insulating structure 421, so as to avoid the problem of signal crosstalk.
In a specific embodiment, the cathode wirings of the main pixel 51 and the auxiliary pixel 52 are as shown in fig. 2 b; specifically, for the same pixel 5, the first conductive portion 4111 electrically connected to the cathode 503 of the main pixel 51 and the second conductive portion 4112 electrically connected to the cathode 503 of the auxiliary pixel 52 are jumped at the junction a, so as to avoid the influence of signal crosstalk on the control of the auxiliary pixel. Specifically, referring to fig. 2c, at the junction a, the second conductive portions 4112 are disposed on two sides of the first conductive portion 4111 along the first direction X, and the second conductive portions 4112 on two sides are jumped by the jumper wire 201. The jumper 201 may be disposed in the driving substrate 2 and near one side of the pixel defining layer 3, and the second conductive portions 4112 are disposed in contact with the jumper 201 through vias penetrating the pixel defining layer 3 and the supporting structure 401, so as to electrically connect the second conductive portions 4112 on both sides. Specifically, the jumper line 201 may be made of the same metal material as the second conductive portion 4112.
Further, in the display panel, the cathode wiring of the main pixel 51 and the cathode wiring of the auxiliary pixel 52 are each connected to a separate common cathode VSS (not shown); that is, the first conductive portion 4111 and the second conductive portion 4112 are each connected to a separate common cathode VSS so that the cathode signal transmitted to the cathode 503 of the main pixel 51 and the cathode signal transmitted to the cathode 503 of the auxiliary pixel 52 do not interfere with each other.
Referring to fig. 1, in an embodiment, the display panel may further include an etching protection layer 6 and an encapsulation layer 7. The etching protection layer 6 is used for performing etching protection on each film layer in the pixel in the process of preparing pixels with other colors of the display panel, so as to prevent the prepared pixel from being damaged in the subsequent preparation process. Specifically, the etching protection layer 6 is disposed on a side of the cathode 503 facing away from the organic light emitting layer 502 and coats the cathode 503; to provide etch-resistant protection for the cathode 503. The etching protection layer 6 may include a non-conductive inorganic material; specifically, the etching protection layer 6 may include an inorganic material containing silicon, for example, a SiNx-based inorganic material.
Preferably, the etching protection layer 6 may also fill the eave structure and overlap the surface of the overhang structure 4. Specifically, the etching protection layer 6 may include a first protection layer disposed on the main pixel 51 and a second protection layer disposed on the auxiliary pixel 52. The two sides of the first protection layer fill the first overhang structure 41 near the eave structure of the main pixel 51, and cover the surfaces of the first conductive portion 4111 and the first insulating structure 412. One side of the second protection layer fills the first overhang structure 41 close to the eave structure of the auxiliary pixel 52 and covers the surfaces of the second conductive portion 4112 and the first insulating structure 412, and the other side fills the second overhang structure 42 close to the eave structure of the auxiliary pixel 52 and covers the surface of the second insulating structure 421.
After the preparation of all pixels is completed, an encapsulation layer 7 may be disposed on the display panel to integrally encapsulate the display panel. Specifically, the encapsulation layer 7 is coated on the side of the etching protection layer 6 facing away from the driving substrate 2, and covers the portion of the overhang structure 4 not covered by the etching protection layer 6.
Referring to fig. 3-4, fig. 3 is a schematic structural diagram of a display panel according to a second embodiment of the present application; fig. 4 is a top view of the display panel shown in fig. 3. The structure of the display panel provided by the second embodiment of the present application is substantially the same as that of the display panel provided by the first embodiment of the present application, except that in the second embodiment of the present application, the number of auxiliary pixels 52 per pixel 5 is one. It is understood that the auxiliary pixels 52 are disposed only on one side of the main pixels 51 in the first direction X. Specifically, the display panel may further include a third overhang structure 43 disposed on a side of the main pixel 51 facing away from the auxiliary pixel 52, the first overhang structure 41 is disposed only between the main pixel 51 and the auxiliary pixel 52 in the same pixel, and the third overhang structure 43 and the first overhang structure 41 cooperate to form a main pixel accommodating area around.
Wherein the third overhang structure 43 may include a second conductive structure 431 and a third insulating structure 432 shielding the second conductive structure 431; and the second conductive structure 431 is disposed in contact with the cathode 503 of the main pixel 51. Specifically, the pixel defining layer 3 further includes a third defining layer 33 disposed on a side of the main pixel 51 away from the first defining layer 31, and the third overhang structure 43 may also include a supporting structure 401 disposed on a surface of the third defining layer 33. The second conductive structure 431 and the third insulating structure 432 are stacked on a side of the support structure 401 facing away from the third defining layer 33, and the third insulating structure 432 is located on a side of the second conductive structure 431 facing away from the support structure 401. The second conductive structure 431 and the first conductive portion 4111 together transmit the cathode 503 signal to the main pixel 51. The edges of the third insulating structure 432 also protrude from the second conductive structure 431 to form an eave structure, and the function of the eave structure can be referred to above, which is not described herein.
Referring to fig. 5, fig. 5 is a top view of a display panel according to a third embodiment of the present application; the structure of the display panel provided by the third embodiment of the present application is substantially the same as that of the display panel provided by the second embodiment of the present application, except that in the third embodiment of the present application, the number of the auxiliary pixels 52 in the first pixels 53 is two; that is, two auxiliary pixels 52 are provided in the blue pixel. As can be appreciated by those skilled in the art, the decay rate of the blue pixel is relatively fast compared to the red and green pixels, affecting the useful life of the display panel; the third embodiment of the present application increases the lifetime of the blue pixel by adding the auxiliary pixel 52 of the blue pixel, thereby effectively increasing the lifetime of the display panel.
Specifically, as shown in fig. 5, in the first pixel 53, two auxiliary pixels 52 are respectively located on both sides of the main pixel 51 in the first direction X. The second pixel 54 and the third pixel 55 are each provided with only one auxiliary pixel 52; wherein the main pixel 51 of the second pixel 54 is disposed near the auxiliary pixel 52 on one side of the first pixel 53, and the main pixel 51 of the third pixel 55 is disposed near the auxiliary pixel 52 on the other side of the first pixel 53. Of course, in other embodiments, the auxiliary pixels 52 of the second pixel 54 and/or the auxiliary pixels 52 of the third pixel 55 may also be disposed close to the auxiliary pixels 52 of the first pixel 53.
Referring to fig. 6-7 b, fig. 6 is a top view of a display panel according to a fourth embodiment of the present application; FIG. 7a is a cross-sectional view of the display panel of FIG. 6 taken along line B-B; fig. 7b is a cross-sectional view of the display panel of fig. 6 taken along line C-C. The structure of the display panel provided by the fourth embodiment of the present application is substantially the same as that of the display panel provided by the first embodiment of the present application, except that in the fourth embodiment of the present application, each pixel 5 may further include a plurality of sub-pixels 50; the plurality of sub-pixels 50 are sequentially arranged at intervals along the second direction Y, and each sub-pixel 50 may include a main pixel 51 and an auxiliary pixel 52. Specifically, the number of the auxiliary pixels 52 in each sub-pixel 50 is two, and the two auxiliary pixels 52 are respectively located at two sides of the main pixel 51 along the first direction X. As shown in fig. 6, the main pixels 51 and the auxiliary pixels 52 may form a plurality of independent pixel islands on the display panel and are arranged in an array; thus, the vapor deposition area of the organic light emitting layer 502 and the cathode 503 can be reduced, and the material consumption can be reduced, thereby effectively reducing the manufacturing cost.
Specifically, with reference to fig. 7a, in the second direction Y, a third overhang structure 43 is disposed between adjacent main pixels 51; and the cathodes 503 of adjacent main pixels 51 are each disposed in contact with the second conductive structure 431 of the third overhang structure 43. That is, in the fourth embodiment of the present application, the first overhang structure 41 and the third overhang structure 43 surround to form a main pixel accommodating area in which the main pixel 51 of the sub-pixel 50 is disposed; the second conductive structure 431 between two main pixels 51 adjacent in the second direction Y may serve as a bridge line connecting the cathodes 503 of the two main pixels 51.
Referring to fig. 7b, a third overhang structure 43 may also be disposed between adjacent auxiliary pixels 52 along the second direction Y; and the cathodes 503 of adjacent auxiliary pixels 52 are disposed in contact with the second conductive structures 431. That is, the first, second, and third overhang structures 41, 42, and 43 surround to form an auxiliary pixel accommodating region in which the auxiliary pixels 52 of the sub-pixels 50 are disposed; the second conductive structure 431 between two auxiliary pixels 52 adjacent in the second direction Y may serve as a bridge line connecting the cathodes 503 of the two auxiliary pixels 52.
The embodiment of the application provides a display panel which comprises a flexible substrate 1, a driving substrate 2, a pixel defining layer 3, an overhang structure 4 and a plurality of pixels 5. Wherein the flexible substrate 1 has a plurality of non-stretched regions 11 arranged at intervals and stretchable regions 12 arranged between the non-stretched regions 11; the driving substrate 2 is arranged on the flexible substrate 1, and the driving substrate 2 comprises a rigid region 21 corresponding to the non-stretching region 11 and a flexible region 22 corresponding to the stretchable region 12; the pixel defining layer 3 is disposed on one side of the driving substrate 2 and protrudes from the driving substrate 2. The overhang structure 4 is arranged at least on one side of the pixel defining layer 3 facing away from the driving substrate 2; wherein the overhang structure 4 comprises a first overhang structure 41 and a second overhang structure 42; the first overhang structure 41 is disposed on the rigid region 21 and surrounds the main pixel accommodating region; the first overhang structure 41 includes a first conductive structure 411 and a first insulating structure 412 shielding the first conductive structure 411; at least part of the first conductive structure 411 includes a first conductive portion 4111 near the main pixel accommodating area and a second conductive portion 4112 far from the main pixel accommodating area; the first insulating structure 412 separates the first conductive portion 4111 from the second conductive portion 4112; the second overhang structure 42 is disposed on the pixel defining layer 3 and surrounds the first overhang structure 41 to form an auxiliary pixel accommodating area; the second overhang structure 42 includes a support structure 401 and a second insulating structure 421 shielding the support structure 401. Each pixel 5 includes an anode 501, an organic light-emitting layer 502, and a cathode 503, which are stacked in this order from the direction close to the drive substrate 2 to the direction away from the drive substrate 2; each pixel 5 includes a main pixel 51 disposed in the main pixel accommodating region, and an auxiliary pixel 52 disposed in the auxiliary pixel accommodating region; wherein the main pixel accommodating area and the auxiliary pixel accommodating area are both located on the rigid area 21 of the driving substrate 2; the cathode 503 of the main pixel 51 is disposed in contact with the first conductive portion 4111, and the cathode 503 of the auxiliary pixel 52 is disposed in contact with the second conductive portion 4112. By arranging the main pixel 51 and the auxiliary pixel 52 in each pixel 5, the auxiliary pixel 52 can be made to emit light to compensate the light-emitting brightness of each pixel 5 after the display panel is stretched, so that the situation that the display panel has display granular feel after being stretched is avoided, and the use experience of a user is effectively improved; meanwhile, by disposing the first overhang structure 41 having the first conductive portion 4111 and the second conductive portion 4112 between the main pixel 51 and the auxiliary pixel 52, and contacting the cathode 503 of the main pixel 51 and the cathode 503 of the auxiliary pixel 52 with the first conductive portion 4111 and the second conductive portion 4112, respectively, and disposing the first conductive portion 4111 and the second conductive portion 4112 at a distance from each other, the transmission of the cathode 503 signal to the auxiliary pixel 52 through the second conductive portion 4112 alone is achieved, so that the auxiliary pixel 52 can be controlled to emit light only after the display panel is stretched.
Referring to fig. 8, fig. 8 is a schematic structural diagram of a display device according to an embodiment of the application; the present application also provides a display device, which may include the display panel 100 according to any of the above embodiments.
The embodiment of the application also provides a control method of the display device, which is used for controlling the display device related to the embodiment; specifically, as shown in fig. 8, the display device may further include a sensor 200 and a controller 300. Among them, the sensor 200 may be disposed on the display panel 100 to detect a stretching degree of the display panel 100 and output a corresponding electrical signal according to the stretching degree. One end of the controller 300 is electrically connected to the sensor 200 for receiving an electrical signal output from the sensor, and the other end is electrically connected to the second conductive portion 4112 for controlling a cathode signal input to the cathode 503 of the auxiliary pixel 52.
Specifically, the control method of the display device includes:
Step S1: the controller transmits a cathode signal to the cathode of the auxiliary pixel through the second conductive part in response to the sensor detecting that the stretching degree of the display panel is greater than a preset value, so that the auxiliary pixel emits light.
In a particular embodiment, the sensor 200 may be a tension sensor; it can be understood that after the display panel 100 is stretched and deformed under the action of external force, the tension of the display panel 100 to the sensor 200 will also be changed, and the tension and the stretching degree have a corresponding relationship; the sensor 200 may determine the stretching degree of the display panel 100 according to the detected tension and transmit an electrical signal corresponding to the stretching degree to the controller 300 in real time. When the stretching degree of the display panel 100 is greater than a preset value, that is, the electrical signal of the sensor 200 received by the controller 300 is greater than a certain preset value, the controller 300 turns on one end electrically connected to the second conductive portion 4112 and transmits a cathode signal to the cathode 503 of the auxiliary pixel 52 through the second conductive portion 4112, so that the organic light emitting layer 502 of the auxiliary pixel 52 emits light after being conductive.
Step S2: the controller stops transmitting the cathode signal to the cathode of the auxiliary pixel through the second conductive part in response to the sensor detecting that the stretching degree of the display panel is less than a preset value, so that the auxiliary pixel is turned off.
Specifically, after the display panel 100 recovers to deform under the action of the external force, the tensile force of the display panel 100 to the sensor 200 is reduced, the electrical signal output by the sensor 200 is changed, and when the electrical signal received by the controller 300 is smaller than a certain preset value, the controller 300 closes one end electrically connected to the second conductive portion 4112 and stops transmitting the cathode signal to the cathode 503 of the auxiliary pixel 52 through the second conductive portion 4112, so that the organic light emitting layer 502 of the auxiliary pixel 52 stops emitting light.
The foregoing description is only of embodiments of the present application, and is not intended to limit the scope of the application, and all equivalent structures or equivalent processes using the descriptions and the drawings of the present application or directly or indirectly applied to other related technical fields are included in the scope of the present application.
Claims (10)
1. A display panel, comprising:
A flexible substrate having a plurality of non-stretchable regions disposed at intervals and stretchable regions disposed between the non-stretchable regions;
the driving substrate is arranged on the flexible substrate and comprises a rigid region arranged corresponding to the non-stretching region and a flexible region arranged corresponding to the stretchable region;
the pixel definition layer is arranged on one side of the driving substrate and protrudes out of the driving substrate; the pixel definition layer is at least arranged in the flexible region;
The overhang structure is at least arranged on one side of the pixel definition layer, which is away from the driving substrate; the overhang structure includes:
A first overhang structure disposed on the rigid region and surrounding a main pixel accommodating region; the first overhang structure comprises a first conductive structure and a first insulating structure shielding the first conductive structure; the first conductive structure includes a first conductive portion near the main pixel accommodating area and a second conductive portion far from the main pixel accommodating area; the first insulating structure separates the first conductive portion from the second conductive portion;
A second overhang structure arranged on the pixel defining layer and surrounding the first overhang structure to form an auxiliary pixel accommodating area; the second overhang structure comprises a supporting structure and a second insulating structure shielding the supporting structure;
a plurality of pixels including an anode, an organic light emitting layer, and a cathode, which are sequentially stacked in a direction from a direction close to the driving substrate to a direction away from the driving substrate; each pixel comprises a main pixel arranged in the main pixel accommodating area and an auxiliary pixel arranged in the auxiliary pixel accommodating area;
Wherein the main pixel accommodating area and the auxiliary pixel accommodating area are both located on the rigid area of the driving substrate; the cathode of the main pixel is in contact with the first conductive part, and the cathode of the auxiliary pixel is in contact with the second conductive part.
2. The display panel of claim 1, wherein the number of auxiliary pixels per pixel is one; the first overhang structure is only arranged between the main pixel and the auxiliary pixel in the same pixel; the display panel further includes:
the third overhang structure is arranged on one side of the main pixel, which is away from the auxiliary pixel; the third overhang structure comprises a second conductive structure and a third insulating structure shielding the second conductive structure; the second conductive structure is disposed in contact with the cathode of the main pixel.
3. The display panel of claim 1, wherein the plurality of pixels includes a first pixel, a second pixel, and a third pixel; the number of the auxiliary pixels of the first pixel is two, and the auxiliary pixels are respectively positioned at two sides of the main pixel of the first pixel;
The color of the first pixel is blue;
The colors of the second pixel and the third pixel are respectively selected from one of red and green; and the colors of the second pixel and the third pixel are different from each other.
4. The display panel according to claim 1, wherein the number of the auxiliary pixels of each pixel is two, and the auxiliary pixels are respectively located at two sides of the main pixel of each pixel; wherein,
For the same said pixel: one first overhang structure is arranged between the two auxiliary pixels and the main pixel; one side of each auxiliary pixel, which is away from the main pixel, is provided with a second overhang structure;
the cathode of the auxiliary pixel overlaps the second insulating structure surface of the second overhang structure on a side facing away from the main pixel.
5. The display panel of claim 4, wherein the pixel definition layer comprises a first definition layer disposed on the rigid region and a second definition layer disposed on the flexible region; two second overhang structures which are oppositely arranged in the adjacent pixels are arranged on the second definition layer at intervals.
6. The display panel according to any one of claims 1 to 5, wherein,
A plurality of the pixels are sequentially arranged along a first direction perpendicular to the stacking direction; each pixel extends in a second direction perpendicular to the stacking direction; wherein the first direction and the second direction are perpendicular to each other; each pixel further comprises a plurality of anodes arranged at intervals along the second direction;
The auxiliary pixels are arranged on one side and/or two sides of the main pixels along the first direction.
7. The display panel of any one of claims 1-5, wherein each of the pixels further comprises:
a plurality of sub-pixels sequentially arranged at intervals along a second direction perpendicular to the stacking direction; each of the sub-pixels includes the main pixel and the auxiliary pixel;
the third overhang structures are arranged between adjacent main pixels along the second direction; and cathodes of adjacent main pixels are arranged in contact with the second conductive structure of the third overhang structure;
the third overhang structures are arranged between adjacent auxiliary pixels along the second direction; and cathodes of adjacent auxiliary pixels are arranged in contact with the second conductive structure.
8. The display panel according to claim 1, wherein the anode of the main pixel and the anode of the auxiliary pixel are formed as the same film layer; at least part of the first definition layer between the main pixel and the auxiliary pixel is arranged on one side surface of the anode of the pixel, which is away from the driving substrate.
9. A display device comprising a display panel according to any one of claims 1-8.
10. A control method of a display device, characterized in that the display device comprises:
A display panel according to any one of claims 1 to 8;
a sensor for detecting a stretching degree of the display panel;
One end of the controller is electrically connected with the sensor and is used for receiving the electric signal of the sensor; the other end of the controller is electrically connected with the second conductive part and is used for controlling a cathode signal input into the cathode of the auxiliary pixel;
the control method of the display device comprises the following steps:
the controller transmits the cathode signal to the cathode of the auxiliary pixel through the second conductive part in response to the sensor detecting that the stretching degree of the display panel is greater than a preset value, so that the auxiliary pixel emits light;
The controller stops the transmission of the cathode signal to the cathode of the auxiliary pixel through the second conductive part to turn off the auxiliary pixel in response to the sensor detecting that the stretching degree of the display panel is less than a preset value.
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| KR20200009921A (en) * | 2018-07-20 | 2020-01-30 | 엘지디스플레이 주식회사 | Stretchable display device |
| CN111864067A (en) * | 2020-07-24 | 2020-10-30 | 京东方科技集团股份有限公司 | Stretchable display panel, manufacturing method thereof and display device |
| CN115988905A (en) * | 2023-03-21 | 2023-04-18 | 惠科股份有限公司 | Pixel structure and display panel |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20200009921A (en) * | 2018-07-20 | 2020-01-30 | 엘지디스플레이 주식회사 | Stretchable display device |
| CN111864067A (en) * | 2020-07-24 | 2020-10-30 | 京东方科技集团股份有限公司 | Stretchable display panel, manufacturing method thereof and display device |
| CN115988905A (en) * | 2023-03-21 | 2023-04-18 | 惠科股份有限公司 | Pixel structure and display panel |
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