CN111798797A - Display control method and device, display device and medium - Google Patents
Display control method and device, display device and medium Download PDFInfo
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- CN111798797A CN111798797A CN202010740082.9A CN202010740082A CN111798797A CN 111798797 A CN111798797 A CN 111798797A CN 202010740082 A CN202010740082 A CN 202010740082A CN 111798797 A CN111798797 A CN 111798797A
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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
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
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Abstract
A display control method and device, a display device and a medium are provided, wherein the display control method is applied to a display panel and comprises the following steps: the method comprises the steps of obtaining an original brightness value corresponding to a gray-scale value of a sub-pixel of the display panel, obtaining a brightness compensation gain value of the sub-pixel when the position of the sub-pixel is located in a preset area, determining a target brightness value according to the original brightness value and the brightness compensation gain value, and controlling the sub-pixel to display according to the target brightness value. According to the scheme provided by the embodiment, the brightness compensation gain value is set in the preset area, the brightness compensation is carried out on the preset area, and the brightness uniformity of the display panel is improved.
Description
Technical Field
Embodiments of the present disclosure relate to, but not limited to, display technologies, and more particularly, to a display control method and apparatus, a display apparatus, and a medium.
Background
Organic Light-Emitting Diode (OLED) panels have increasingly higher resolutions, increasing refresh rates, and increasing sizes. As the resolution of the OLED Panel increases (2K, 4K, 8K), the refresh rate increases (60Hz, 120Hz, 240Hz), and the size increases (55", 65", 77 ", 88"), problems of reduced Panel brightness uniformity tend to occur.
Disclosure of Invention
The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.
The embodiment of the application provides a display control method and device, a display device and a medium, and improves the uniformity of display brightness of a display panel.
In one aspect, an embodiment of the present application provides a display control method, applied to a display panel, including:
the method comprises the steps of obtaining an original brightness value corresponding to a gray-scale value of a sub-pixel of the display panel, obtaining a brightness compensation gain value of the sub-pixel when the sub-pixel is located in a preset area of the display panel, determining a target brightness value according to the original brightness value and the brightness compensation gain value, and controlling the sub-pixel to display according to the target brightness value.
In an exemplary embodiment, the display panel includes a plurality of scan lines and data lines perpendicular to each other, the scan lines extend from a first side to a second side of the display panel, and the preset area includes at least one of: the area where the m columns of sub-pixels closest to the first side are located, and the area where the m columns of sub-pixels closest to the second side are located, wherein each column of sub-pixels extends in a direction parallel to the data line, and m is an integer and is greater than or equal to 1.
In an exemplary embodiment, M is less than or equal to M/5, where M is a total column number of the sub-pixels of the display panel.
In an exemplary embodiment, the brightness compensation gain values of the sub-pixels in the same column in the preset area are the same.
In an exemplary embodiment, the luminance compensation gain values of the sub-pixels symmetrical to each other with respect to a center line of the display panel, the center line being parallel to the data lines of the display panel, are the same.
In an exemplary embodiment, the obtaining the brightness compensation gain value of the sub-pixel includes: and acquiring the brightness compensation gain value of the sub-pixel according to a pre-established corresponding relation table of the brightness compensation gain value and the position.
In an exemplary embodiment, the correspondence table of the luminance compensation gain value and the position is obtained as follows: and measuring deviation values of the luminance of the sub-pixels in the preset areas of the display panels and the luminance of the sub-pixels in the central area of the display panels, and determining the luminance compensation gain value according to the deviation values.
In an exemplary embodiment, the determining a target brightness value according to the original brightness value and the brightness compensation gain value includes:
determining a global brightness compensation value for the brightness compensation of all the sub-pixels;
and multiplying the original brightness value by the global brightness compensation value and the brightness compensation gain value to obtain the target brightness value.
In another aspect, an embodiment of the present application provides a display control apparatus, including:
the first brightness determining module is used for acquiring an original brightness value corresponding to a gray-scale value of a sub-pixel of the display panel;
the brightness gain determining module is used for acquiring a brightness compensation gain value of the sub-pixel when the sub-pixel is positioned in a preset area of the display panel;
a second brightness determination module configured to determine a target brightness value according to the original brightness value and a brightness compensation gain value;
and the display module is used for controlling the sub-pixels to display according to the target brightness value.
In another aspect, an embodiment of the present application provides a display device, which includes the above display control device.
In another aspect, an embodiment of the present application provides a display device, which includes a processor, a memory, and a computer program stored in the memory and executable on the processor, where the computer program, when executed by the processor, implements the steps of the display control method.
In another aspect, an embodiment of the present application provides a medium, where a computer program operable on a processor is stored, and the computer program, when executed by the processor, implements the steps of the display control method.
The embodiment of the application provides a display control method, which is applied to a display panel and comprises the following steps: the method comprises the steps of obtaining an original brightness value corresponding to a gray-scale value of a sub-pixel of the display panel, obtaining a brightness compensation gain value of the sub-pixel when the position of the sub-pixel is located in a preset area, determining a target brightness value according to the original brightness value and the brightness compensation gain value, and controlling the sub-pixel to display according to the target brightness value. According to the scheme provided by the embodiment, the brightness compensation gain value is set in the preset area, the brightness compensation is carried out on the preset area, and the brightness uniformity of the display panel is improved.
Additional features and advantages of the disclosure will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the disclosure. The objectives and other advantages of the disclosure may be realized and attained by the structure particularly pointed out in the written description and drawings.
Other aspects will be apparent upon reading and understanding the attached drawings and detailed description.
Drawings
The accompanying drawings are included to provide a further understanding of the embodiments of the present application and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the examples of the application do not constitute a limitation of the embodiments of the application.
FIG. 1 is a schematic diagram showing the distribution of data lines and scan lines on a display panel;
FIG. 2 is a signal misinterpretation diagram;
FIG. 3 is a diagram illustrating non-uniformity of brightness of a display panel;
fig. 4 is a flowchart of a display control method according to an embodiment of the present application;
fig. 5 is a schematic diagram of a preset area provided in the embodiment of the present application;
FIG. 6 is a schematic diagram illustrating brightness of a display panel after performing display control according to an embodiment of the present application;
FIG. 7 is a schematic view of a display device according to an embodiment;
fig. 8 is a schematic view of a display device according to another embodiment.
Detailed Description
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the present application, the embodiments and features of the embodiments may be arbitrarily combined with each other without conflict.
The steps illustrated in the flow charts of the figures may be performed in a computer system such as a set of computer-executable instructions. Also, while a logical order is shown in the flow diagrams, in some cases, the steps shown or described may be performed in an order different than here.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items.
In the drawings, the size of each component, the thickness of layers, or regions may be exaggerated for clarity. Therefore, the embodiments of the present disclosure are not necessarily limited to the dimensions, and the shapes and sizes of the respective components in the drawings do not reflect a true scale. Further, the drawings schematically show ideal examples, and the embodiments of the present disclosure are not limited to the shapes or numerical values shown in the drawings.
The ordinal numbers such as "first", "second", "third", etc., in this disclosure are provided to avoid confusion among the constituent elements, and do not indicate any order, number, or importance.
In the present disclosure, for convenience, terms indicating orientation or positional relationship such as "middle", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like are used to explain positional relationship of constituent elements with reference to the drawings, only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured in a specific orientation, and be operated, and thus, should not be construed as limiting the present disclosure. The positional relationship of the components is changed as appropriate in accordance with the direction in which each component is described. Therefore, the words described in the disclosure are not limited thereto, and may be replaced as appropriate.
In this disclosure, the terms "mounted," "connected," and "connected" are to be construed broadly unless otherwise specifically stated or limited. For example, it may be a fixed connection, or a removable connection, or an integral connection; can be a mechanical connection, or an electrical connection; either directly or indirectly through intervening components, or both may be interconnected. The specific meaning of the above terms in the present disclosure can be understood in specific instances by those of ordinary skill in the art.
In the present disclosure, "parallel" means a state in which an angle formed by two straight lines is-10 ° or more and 10 ° or less, and therefore, includes a state in which the angle is-5 ° or more and 5 ° or less. The term "perpendicular" refers to a state in which the angle formed by two straight lines is 80 ° or more and 100 ° or less, and therefore includes a state in which the angle is 85 ° or more and 95 ° or less.
As shown in fig. 1, the higher the resolution of the display panel, the Capacitance (Capacitance) caused by the Overlap (Overlap, for example, at the position a) of the Gate Line (Gate Line)1 and the Data Line 2(S/D Line or Data Line) increases and the Line impedance (Line Resistance) caused by the manufacture of a large-sized panel increases, which causes RC Delay and Signal (Signal) misinterpretation phenomena, and further causes insufficient charging of the Gate Signal and a reduction of the Driving voltage of the Driving transistor (Driving TFT), which causes a reduction of the current supplied to the Electroluminescence (EL), and thus the panel luminance decreases. As shown in fig. 2, Signal misinterpretation occurs due to Line resistance and capacitance, and the RC of the Line 3 is small, and the RC of the Line 4 is large. In order to solve the problem of the brightness reduction of the panel, a driving signal can be input to both sides of the panel, so that the signal delay (SignalDelay) and the misinterpretation phenomenon can be improved. Currently, a Gate driving Signal (Gate Signal) of an OLED Panel is simultaneously input in a left and right direction of the Panel, and a double feed (Dual feed) method is used to reduce Signal Delay or Signal drop problem caused by RC Delay and reduce Signal attenuation, but a 4K-level OLED Panel has 4 Sub-pixels (Sub pixels), namely red, white, blue and green (RWBG) Sub-pixels, unlike a Liquid Crystal Display (LCD), so in terms of Gate driving Signal transmission, due to an increase in capacitance and large screen driving of 55 ″ or more, an image of the OLED Panel has Panel luminance reduction in a left and right region of the Panel, and thus Panel luminance Uniformity (Uniformity) is reduced, as shown in fig. 3. The limitations of Gamma Tuning (Gamma Tuning) compensation using the tested luminance and color locus table are also affected. The SDIC in fig. 3 is a source driver. In addition, the 8K-level Panel or the high-speed drive (60Hz, 120Hz and 240Hz) Panel leads to the reduction of the Signal Charging Ratio due to the shortening of the Signal loading time, and the Signal misinterpretation leads to the more substantial reduction of the brightness of the area around the Panel.
As the size increases, the compensation method based on the Data voltage Data, which is tested in the Panel Center, cannot improve the problem of the decrease in the left/right luminance of the Panel. The OLED Panel adopts an external compensation mode to ensure the uniformity characteristic of Panel brightness. In the embodiment of the present application, when the offset Compensation is performed, the Compensation Gain (Compensation Gain) value for the luminance drop is increased to increase the D-IC output value in the Panel preset region, so that the luminance drop around the Panel caused by the misinterpretation of the Gate Signal can be improved, and the luminance uniformity of the real Panel can be improved.
As shown in fig. 4, an embodiment of the present application provides a display control method applied to a display panel, including:
According to the scheme provided by the embodiment, the brightness compensation gain value is set for the sub-pixels in the preset area, the brightness compensation is carried out on the preset area, and the brightness uniformity of the display panel is improved.
In an exemplary embodiment, the brightness compensation gain value satisfies: and enabling the difference value of the brightness of the sub-pixels in the preset area and the brightness of the sub-pixels in the non-preset area to be smaller than a preset threshold value. The preset threshold may be set as desired.
In an exemplary embodiment, obtaining an original luminance value corresponding to a gray-scale value of a sub-pixel of the display panel includes: and converting the gray scale value of each sub-pixel into a brightness value according to the gray scale and brightness corresponding relation table. The gray scale-brightness corresponding table can be configured in advance, and the brightness value can be obtained by directly looking up the table, namely the original brightness value. In another embodiment, the luminance value may be obtained by a conversion formula of gray scale and luminance. Taking red sub-pixel as an example, the brightness of red sub-pixel
Wherein, R is the gray scale value of the red sub-pixel, GL is the maximum gray scale, and Gamma is the Gamma value. For example, GL can be 256, and gamma can be 1.8-2.6. For example, γ may be 2.2. The sub-pixels may be red, green, and blue sub-pixels, or may be red, green, blue, and white sub-pixels.
The preset region may be a region of the display panel where luminance compensation is required. In an exemplary embodiment, the display panel includes a plurality of scan lines and data lines perpendicular to each other, the scan lines extend from a first side to a second side of the display panel, and the preset area includes at least one of: the area where the m columns of sub-pixels closest to the first side are located, and the area where the m columns of sub-pixels closest to the second side are located, wherein each column of sub-pixels extends in a direction parallel to the data line, and m is an integer and is greater than or equal to 1. As shown in fig. 5, the display panel includes scan lines 1 and data lines 2, and the scan lines 1 and the data lines 2 define a plurality of pixel units, each of which includes a plurality of sub-pixels (not shown in fig. 5), such as 4 sub-pixels. The first side is a C1 side, the second side is a C2 side, and the preset region may include a region where m columns of sub-pixels closest to the C1 side are located, or may include a region where m columns of sub-pixels closest to the C2 side are located, or may include a region where m columns of sub-pixels closest to the C1 side are located and a region where m columns of sub-pixels closest to the C2 side are located. The extending direction of each column of sub-pixels is parallel to the extending direction of the data line 2. That is, the predetermined area may include areas where a plurality of columns of sub-pixels closest to the left and right sides of the display panel are located. The driving integrated circuit of the display panel is disposed on the side of C3 adjacent to the side of C1 and the side of C2. According to the scheme provided by the embodiment, the brightness compensation is carried out on the areas of the display panel close to the two sides, and the brightness uniformity of the display panel is improved.
In an exemplary embodiment, M is less than or equal to M/5, where M is a total column number of the sub-pixels of the display panel. That is, the region 2/5 in total of the region of the display panel near the C1 side 1/5 and the region near the C2 side 1/5 can be luminance-compensated. Here, only an example, more or less regions may be compensated as needed. For example, when M is 2160, M is 432.
In an exemplary embodiment, the brightness compensation gain values of the sub-pixels in the same column in the preset area are the same. That is, one brightness compensation gain value is used for the same column, and m brightness compensation gain values are used for m columns. The luminance compensation gain values of the sub-pixels of different columns may be the same or, alternatively, different. This embodiment is merely an example, and different luminance compensation gain values may be set for different sub-pixels.
In an exemplary embodiment, the luminance compensation gain values of the sub-pixels symmetrical to each other with respect to a center line of the display panel, the center line being parallel to the data lines of the display panel, are the same. For example, the luminance compensation gain values of two sub-pixels symmetrical with respect to the center line B are the same. As can be obtained by combining the previous embodiment, the luminance compensation gain values of two columns of sub-pixels symmetrical with respect to the center line B are the same. At this time, only the luminance compensation gain value on one side (for example, the C1 side) may be stored, and the luminance compensation gain value on the other side (for example, the C2 side) may be stored using the luminance compensation gain value at a position symmetrical to the C2 side in the C1 side. In the scheme provided by the embodiment, the same brightness gain compensation value is used at the symmetrical position, so that the scheme can be simplified.
In an exemplary embodiment, the brightness compensation gain value is greater than 1. Namely, in the embodiment of the present application, the brightness of the preset area is enhanced.
In an exemplary embodiment, the obtaining the brightness compensation gain value of the sub-pixel includes: and acquiring the brightness compensation gain value of the sub-pixel according to a pre-established brightness compensation gain value and position length corresponding relation table. The correspondence table of the brightness compensation gain value and the position may be obtained by measurement.
The brightness compensation gain value is affected by the characteristics of the panel manufacturer or the display device, and the brightness compensation gain value may be calculated after detecting the display panel to determine the brightness deviation between the preset region and the non-preset region, in an exemplary embodiment, the brightness compensation gain value and the position corresponding relation table are obtained as follows: and measuring deviation values of the luminance of the sub-pixels in the preset areas of the display panels and the luminance of the sub-pixels in the central area of the display panels, and determining the luminance compensation gain value according to the deviation values. The deviation value between the brightness of each column of sub-pixels in the preset area and the brightness of the sub-pixels in the central area can be measured respectively to obtain the brightness gain value of each column of sub-pixels. When measuring a plurality of display panels, the deviation values of the luminance of the sub-pixels in the same row in the plurality of display panels may be averaged and then used as the deviation value of the sub-pixels in the row, and then the luminance compensation gain value may be calculated. The central area of the display panel, such as an area (including the central point of the display panel) at the center of the display panel, may be a square area, or may be a circular area, and so on. By setting the brightness compensation gain value, after the brightness compensation is carried out on the preset area based on the brightness compensation gain value, the deviation value of the brightness of the preset area and the brightness of the central area is smaller than a preset threshold value, and the brightness uniformity is improved.
In an exemplary embodiment, the determining a target brightness value according to the original brightness value and the brightness compensation gain value includes:
determining a global brightness compensation value for the brightness compensation of all the sub-pixels;
and multiplying the original brightness value by the global brightness compensation value and the brightness compensation gain value to obtain the target brightness value.
In this embodiment, two compensations, a global compensation and a local compensation, are performed. The global illumination compensation value is used to compensate for all sub-pixels. The brightness compensation gain value is used for compensating the preset area. In this embodiment, the target luminance value of the sub-pixel in the non-preset region is a multiplication of the original luminance value and the global luminance compensation value. In another embodiment, compensation may be performed only once if global compensation is not performed. At this time, the determining a target brightness value according to the original brightness value and the brightness compensation gain value includes:
and multiplying the original brightness value by the brightness compensation gain value to obtain the target brightness value.
In another embodiment, the global compensation and the local compensation may be combined, which is equivalent to performing the compensation only once, and the brightness compensation gain value of the preset region may be set to be greater than that of the non-preset region. Namely: the determining a target brightness value according to the original brightness value and the brightness compensation gain value includes:
and multiplying the original brightness value by the brightness compensation gain value to obtain the target brightness value.
In an exemplary embodiment, in step 404, the sub-pixels are controlled to display at the target brightness value, a voltage signal corresponding to the target brightness value is generated and input to the source driver, and the source driver generates a data signal and inputs the data signal to the light emitting units of the sub-pixels of the display panel through the data lines to perform light emitting display.
Fig. 6 is a schematic diagram of the brightness of the display panel after performing display control by using the display control method provided in the embodiment of the present application. It can be seen that, compared with the display panel shown in fig. 3, in the embodiment of the present application, the brightness of the edge of the display panel is increased, and the difference between the brightness of the edge of the display panel and the brightness of other areas is reduced, so that the brightness uniformity is improved.
Fig. 7 is a schematic diagram of a display control apparatus according to an embodiment of the present application. As shown in fig. 7, an embodiment of the present application provides a display control apparatus, including:
a first luminance determining module 701 configured to obtain an original luminance value corresponding to a gray-scale value of a sub-pixel of a display panel;
a brightness gain determination module 702 configured to obtain a brightness compensation gain value of the sub-pixel when the sub-pixel is located in a preset region of the display panel;
a second brightness determining module 703 configured to determine a target brightness value according to the original brightness value and the brightness compensation gain value;
a display module 704 configured to control the sub-pixels to display at the target brightness value.
The embodiment of the application also provides a display device which comprises the display control device.
As shown in fig. 8, an embodiment of the present application provides a display device, which includes a processor 801, a memory 802, and a computer program stored on the memory 802 and operable on the processor 801, and when the computer program is executed by the processor 801, the steps of the display control method are implemented.
Such as an OLED display device. The display device may be: any product or component with a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like.
An embodiment of the present application provides a medium, in which a computer program that can be executed on a processor is stored, and when the computer program is executed by the processor, the steps of the display control method are implemented.
It will be understood by those of ordinary skill in the art that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed by several physical components in cooperation. Some or all of the components may be implemented as software executed by a processor, such as a digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.
Although the embodiments of the present invention have been described above, the above description is only for the convenience of understanding the present invention, and is not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (12)
1. A display control method is applied to a display panel and comprises the following steps:
the method comprises the steps of obtaining an original brightness value corresponding to a gray-scale value of a sub-pixel of a display panel, obtaining a brightness compensation gain value of the sub-pixel when the sub-pixel is located in a preset area of the display panel, determining a target brightness value according to the original brightness value and the brightness compensation gain value, and controlling the sub-pixel to display according to the target brightness value.
2. The method according to claim 1, wherein the display panel comprises a plurality of scan lines and data lines perpendicular to each other, the scan lines extend from a first side to a second side of the display panel, and the predetermined area comprises at least one of: the area where the m columns of sub-pixels closest to the first side are located, and the area where the m columns of sub-pixels closest to the second side are located, wherein each column of sub-pixels extends in a direction parallel to the data line, and m is an integer and is greater than or equal to 1.
3. The method according to claim 2, wherein M is equal to or less than M/5, where M is a total column number of the subpixels of the display panel.
4. The display control method according to claim 2, wherein the luminance compensation gain values of the sub-pixels in the same column in the preset region are the same.
5. The display control method according to claim 2, wherein the luminance compensation gain values of the sub-pixels symmetrical to each other with respect to a center line of the display panel, the center line being parallel to the data lines of the display panel, are the same.
6. The method of claim 1, wherein the obtaining the luminance compensation gain value for the sub-pixel comprises: and acquiring the brightness compensation gain value of the sub-pixel according to a pre-established corresponding relation table of the brightness compensation gain value and the position.
7. The display control method according to claim 6, wherein the correspondence table of the luminance compensation gain value and the position is obtained as follows: and measuring deviation values of the luminance of the sub-pixels in the preset areas of the display panels and the luminance of the sub-pixels in the central area of the display panels, and determining the luminance compensation gain value according to the deviation values.
8. The method according to any one of claims 1 to 7, wherein the determining a target luminance value according to the original luminance value and the luminance compensation gain value comprises:
determining a global brightness compensation value for the brightness compensation of all the sub-pixels;
and multiplying the original brightness value by the global brightness compensation value and the brightness compensation gain value to obtain the target brightness value.
9. A display control apparatus, characterized by comprising:
the first brightness determining module is used for acquiring an original brightness value corresponding to a gray-scale value of a sub-pixel of the display panel;
the brightness gain determining module is used for acquiring a brightness compensation gain value of the sub-pixel when the sub-pixel is positioned in a preset area of the display panel;
a second brightness determination module configured to determine a target brightness value according to the original brightness value and the brightness compensation gain value;
and the display module is used for controlling the sub-pixels to display according to the target brightness value.
10. A display device characterized by comprising the display control device according to claim 9.
11. A display apparatus comprising a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the display control method according to any one of claims 1 to 8.
12. A medium, characterized in that it has stored thereon a computer program that is executable on a processor, which computer program, when being executed by the processor, carries out the steps of the display control method according to any one of claims 1 to 8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010740082.9A CN111798797B (en) | 2020-07-28 | 2020-07-28 | Display control method and device, display device and medium |
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| CN202010740082.9A CN111798797B (en) | 2020-07-28 | 2020-07-28 | Display control method and device, display device and medium |
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| CN111798797A true CN111798797A (en) | 2020-10-20 |
| CN111798797B CN111798797B (en) | 2022-05-13 |
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| CN115273751A (en) * | 2022-08-22 | 2022-11-01 | 维沃移动通信有限公司 | Control method and device of display panel and electronic equipment |
| WO2023159557A1 (en) * | 2022-02-28 | 2023-08-31 | 京东方科技集团股份有限公司 | Driving method for display panel, driving circuit, and display device |
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| CN111798797B (en) | 2022-05-13 |
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