CN110880297A - Display panel brightness adjusting method and device and display device - Google Patents
Display panel brightness adjusting method and device and display device Download PDFInfo
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- CN110880297A CN110880297A CN201911257658.XA CN201911257658A CN110880297A CN 110880297 A CN110880297 A CN 110880297A CN 201911257658 A CN201911257658 A CN 201911257658A CN 110880297 A CN110880297 A CN 110880297A
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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]
- G09G3/3225—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] using an active matrix
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Abstract
The invention provides a brightness adjusting method and device of a display panel and a display device, wherein the brightness adjusting method comprises the following steps: inputting the brightest gray scale picture; determining a target pixel area and target brightness corresponding to the target pixel area; determining the brightness difference between the brightness of each pixel area except the target pixel area and the target brightness; and adjusting the light-emitting duration of the pixel units in each pixel area according to the brightness difference so as to enable the brightness of each pixel area to be smaller than a preset threshold value with the target brightness. For achieving uniformity of display brightness.
Description
Technical Field
The embodiment of the invention relates to the technical field of display, in particular to a method and a device for adjusting the brightness of a display panel and a display device.
Background
At present, the AMOLED has no backlight due to the self-luminous principle, Power wires are all arranged on the back plate glass, the luminous brightness of the AMOLED is closely related to data voltage (Source) and EL voltage (ELVDD), the maximum current on an ELVDD circuit can reach 300mA, and the voltage Drop generated by IR Drop can cause a large brightness difference between a scanning start end and a scanning end, namely uneven display brightness, so that the display effect of the whole image is affected.
Disclosure of Invention
The invention provides a brightness adjusting method and device of a display panel and a display device, which are used for realizing the uniformity of display brightness.
In a first aspect, an embodiment of the present invention provides a method for adjusting brightness of a display panel, including:
inputting the brightest gray scale picture;
determining a target pixel area and target brightness corresponding to the target pixel area;
determining the brightness difference between the brightness of each pixel area except the target pixel area and the target brightness;
and adjusting the light-emitting duration of the pixel units in each pixel area according to the brightness difference so as to enable the brightness of each pixel area to be smaller than a preset threshold value with the target brightness.
Optionally, the adjusting, according to the brightness difference, the light emitting time of the pixel unit in each pixel region includes:
according to the brightness difference, carrying out color block division on each pixel area, wherein the larger the brightness difference is, the smaller the color block division of the corresponding pixel area is;
and adjusting the light emitting duration of the pixel units in each color block in each pixel area.
Optionally, the adjusting the light emitting duration of the pixel unit in each color block in each pixel region includes:
determining the light-emitting time of a pixel unit in any color block in any pixel area in each pixel area;
and adjusting the light-emitting duration of the pixel unit in any color block so as to enable the brightness of the color block to be smaller than the preset threshold value with the target brightness.
Optionally, the adjusting the light emitting duration of the pixel unit in any color block includes:
and adjusting the light-emitting duration of not all the pixel units in any color block, and controlling the corresponding pixel units to emit light at preset brightness so as to enable the space between the brightness of the color block and the target brightness to be smaller than the preset threshold value, wherein the preset brightness is larger than the target brightness.
Optionally, after the adjusting the light emitting time of the pixel units in each pixel region according to the brightness difference, the method further includes:
and if the image data of the picture to be displayed is received, controlling the pixel units in the corresponding pixel areas to emit light with the corresponding light-emitting duration.
In a second aspect, an embodiment of the present invention further provides a brightness adjusting apparatus for a display panel, including:
the input unit is used for inputting the brightest gray scale picture;
the device comprises a first determining unit, a second determining unit and a control unit, wherein the first determining unit is used for determining a target pixel area and target brightness corresponding to the target pixel area;
a second determination unit configured to determine a luminance difference between the luminance of each pixel region other than the target pixel region and the target luminance;
and the adjusting unit is used for adjusting the light emitting duration of the pixel units in each pixel area according to the brightness difference so as to enable the brightness of each pixel area to be smaller than a preset threshold value with the target brightness.
Optionally, the adjusting unit is configured to:
according to the brightness difference, carrying out color block division on each pixel area, wherein the larger the brightness difference is, the smaller the color block division of the corresponding pixel area is;
and adjusting the light emitting duration of the pixel units in each color block in each pixel area.
In a third aspect, an embodiment of the present invention further provides a display device, which includes a display panel and the brightness adjusting device as described above.
In a fourth aspect, the embodiment of the present invention further provides a computer device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor implements the steps of the brightness adjustment method as described above when executing the program.
In a fifth aspect, the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement the steps of the brightness adjustment method as described above.
The invention has the following beneficial effects:
the embodiment of the invention provides a brightness adjustment method and device for a display panel and a display device. That is to say, according to the input brightest gray scale picture, the brightness of each pixel region of the display panel is adjusted until the brightness of each pixel region with the target brightness of the target pixel region is smaller than the preset threshold value.
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FIG. 1 is a schematic diagram of a display area AA area division of a display panel;
fig. 2 is a flowchart of a brightness adjustment method for a display panel according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating a method of step S104 in a method for adjusting brightness of a display panel according to an embodiment of the present invention;
FIG. 4 is a schematic view of a color block A in the method for adjusting brightness of a display panel according to an embodiment of the present invention;
FIG. 5 is a schematic view of a color block B in the method for adjusting brightness of a display panel according to an embodiment of the present invention;
fig. 6 is a flowchart of one method of step S202 in a method for adjusting brightness of a display panel according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a brightness adjustment apparatus for a display panel according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a display device according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a computer device according to an embodiment of the present invention.
Detailed Description
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 use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. 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 order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. And the embodiments and features of the embodiments may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without any inventive step, are within the scope of protection of the invention.
Generally, the reduction of the brightness is realized by reducing the gray scale of the picture in the high-brightness area, and finally the uniformity of the display brightness is realized. For example, when the brightness of the brightest gray scale (for example, 255 gray scales) is calibrated by Gamma Tuning, the brightness can be reduced only by reducing the gray scale of the corresponding pixel region, thereby realizing the brightness uniformity adjustment.
As a specific example, as shown in fig. 1, a display area AA of the display panel is divided into 7 pixel areas, i.e., an area 1 and an area 7, where the area 1 is a target luminance area and the target luminance area corresponds to a target luminance of 360 nit. Each of the dashed boxes in each of the regions 1-7 is a corresponding pixel region, and the value in the dashed box is the brightness of the corresponding pixel region. The luminances of the corresponding pixel regions in region 1 are 362nit, 351nit and 366 nit. The brightness of the corresponding pixel area in area 3 is 385nit, 370nit and 383 nit. The brightness of the corresponding pixel region in region 5 is 433nit, 420nit and 428 nit. The luminance of the corresponding pixel region in region 7 is 488nit, 477nit, and 492 nit. The brightness of the target brightness region 1 is less than the brightness of the regions 2-7, and the current brightness compensation algorithm mainly reduces the gray scales of the regions 2-7, namely, reduces the brightness of the brighter regions, thereby realizing the brightness uniformity of each region. Therefore, in the whole brightness compensation process, the brightness of a brighter area can only be reduced, and the brightness of a darker area cannot be improved, so that the display effect of the display panel is poor.
In view of this, an embodiment of the present invention provides a method for adjusting brightness of a display panel, as shown in fig. 2, the method includes:
s101: inputting the brightest gray scale picture;
in the implementation process, the brightest gray-scale picture is, for example, a pure color picture with a gray scale of 255, such as a pure white picture.
S102: determining a target pixel area and target brightness corresponding to the target pixel area;
in the implementation, still taking fig. 1 as an example, the target pixel area in the areas 1-7 is the area 4, and the target brightness corresponding to the area 4 is 400 nit.
S103: determining the brightness difference between the brightness of each pixel area except the target pixel area and the target brightness;
in a specific implementation process, the brightness between the brightness of each pixel region except the target pixel region and the target brightness may be greater than the target brightness, equal to the target brightness, or less than the target brightness.
S104: and adjusting the light-emitting duration of the pixel units in each pixel area according to the brightness difference so as to enable the brightness of each pixel area to be smaller than a preset threshold value with the target brightness.
In the implementation process, the preset threshold is a range preset by a person skilled in the art according to the requirement of the brightness uniformity of the display panel, and may be, for example, 2nit, 5nit, and so on.
In a specific implementation process, according to a brightness difference between the brightness of each pixel area except for the target pixel area and the target brightness, correspondingly adjusting the light emitting duration of the pixel unit in the corresponding pixel area, still taking fig. 1 as an example, area 4 is the target pixel area, and the brightness of area 1 is less than the target brightness of area 4, correspondingly extending the light emitting duration of each pixel unit in area 1, and controlling the corresponding pixel unit to emit light at a brightness higher than the target brightness for the light emitting duration; the luminance of the region 7 is larger than the target luminance of the region 4, and the light emitting time period of each pixel unit in the region 7 can be shortened correspondingly compared with the region 1. Because the brightness is the integral relation of the light intensity in time and unit time, the brightness of the corresponding pixel area can be pertinently adjusted by adjusting the light-emitting duration of the pixel units in each pixel area, so that the brightness of a brighter area is reduced and adjusted, and the brightness of a darker area is improved and adjusted, thereby realizing the uniformity adjustment of the brightness and improving the display effect.
Generally, each pixel area of the display panel may include a plurality of pixel units, each pixel unit includes a plurality of color sub-pixels, so that color mixing may be performed by the sub-pixels to realize image display. For example, the pixel unit may include a red sub-pixel, a green sub-pixel, and a blue sub-pixel, so that the color mixture of red, green, and blue may be performed to realize the screen display. For example, a white screen display or a color screen display is realized by mixing red, green, and blue colors.
In the embodiment of the invention, firstly, a brightest gray scale picture is input, then a target pixel area and target brightness corresponding to the target pixel area are determined, then brightness difference between the brightness of each pixel area except the target pixel area and the target brightness is determined, and then according to the brightness difference, the light-emitting duration of pixel units in each pixel area is adjusted, so that the brightness between the brightness of each pixel area and the target brightness is smaller than a preset threshold value. That is to say, according to the input brightest gray scale picture, the brightness of each pixel region of the display panel is adjusted until the brightness of each pixel region with the target brightness of the target pixel region is smaller than the preset threshold value.
In the embodiment of the present invention, please refer to fig. 3, step S104: adjusting the light emitting duration of the pixel units in each pixel region according to the brightness difference so that the brightness of each pixel region and the target brightness are smaller than a preset threshold, comprising:
s201: according to the brightness difference, carrying out color block division on each pixel area, wherein the larger the brightness difference is, the smaller the color block division of the corresponding pixel area is;
s202: and adjusting the light emitting duration of the pixel units in each color block in each pixel area.
In the specific implementation process, the specific implementation process from step S201 to step S202 is as follows:
firstly, dividing each pixel region into color blocks according to the brightness difference between the brightness of each pixel region except the target pixel region and the target brightness, taking fig. 1 as an example, the region 4 is the target pixel region, and the region 1 is the pixel region to be compensated, wherein the average brightness of the region 1 is 360nit, the target brightness corresponding to the target pixel region 4 is 400nit, and the average brightness of the region 1 is smaller than the target brightness. In a specific implementation process, 2 × 2 pixels may be used as color blocks to perform color block division on the region 1 for the region 1, 3 × 3 pixels may be used as color blocks to perform color block division on the region 1, 4 × 4 pixels may be used as color blocks to perform color block division on the region 1, and of course, color blocks of other sizes may be used to perform color block division on the region 1 according to actual needs, which is not described herein again. In practical application, the color block division principle for other pixel regions outside the region 1 is the same as that for the region 1, and therefore, the description is omitted here.
In a specific implementation process, the larger the difference between the brightness of each pixel region except for the target pixel region and the brightness of the target brightness is, the smaller the color block division of the corresponding pixel region can be. Specifically, if the difference between the luminance of the pixel region to be compensated for luminance and the target luminance is small, the larger the adopted color block is, and if the difference between the luminance of the pixel region to be compensated for luminance and the target luminance is large, the smaller the adopted color block is. For example, if the luminance of the pixel region to be compensated is 300nit, the target luminance is 305nit, and the size of the color block used is 4 × 4 color blocks. For another example, if the luminance of the pixel region to be compensated is 200nit, the target luminance is 305nit, and the size of the adopted color block is 2 × 2 color blocks. Combining the color blocks shown in fig. 4 and fig. 5, wherein fig. 4 is a schematic diagram of a 2 × 2 color block a, which includes four pixel units, i.e., P1, P2, P3, and P4. Fig. 5 is a schematic diagram of a 3 × 3 color block B, where the color block B includes nine pixel units, i.e., P1, P2, P3, P4, P5, P6, P7, P8, and P9, where the luminance of the pixel unit P1 in the two color blocks is 800nit, the luminance of the pixel units P2, P3, P4, P5, P6, P7, P8, and P9 are 300nit, the average luminance of the color block a is 425nit, and the average luminance of the color block B is 355 nit. Based on this, the smaller the color-block division of the pixel region, the larger the average brightness of the corresponding pixel region, and conversely, the larger the color-block division of the pixel region, the smaller the average brightness of the corresponding pixel region. In this way, the division size of the color blocks is determined according to the brightness difference between the brightness of each pixel area except the target pixel area and the target brightness, and then the brightness of the pixel area to be compensated is adjusted according to the divided color blocks, so that the targeted adjustment of the brightness of different pixel areas can be realized. Specifically, the larger the brightness difference is, the smaller the color block division of the corresponding pixel region is, and conversely, the smaller the brightness difference is, the larger the color block division of the corresponding pixel region is, so that the brightness compensation of different pixel regions is realized through the specific division condition of the color blocks of the pixel regions, the uniformity between the brightness of each pixel region and the target brightness of the target pixel region is realized, and the display effect is improved.
In the embodiment of the present invention, as shown in fig. 6, step S202: adjusting the light emitting duration of the pixel units in each color block in each pixel area, including:
s301: determining the light-emitting time of a pixel unit in any color block in any pixel area in each pixel area;
s302: and adjusting the light-emitting duration of the pixel unit in any color block so as to enable the brightness of the color block to be smaller than the preset threshold value with the target brightness.
In the specific implementation process, the specific implementation process from step S301 to step S302 is as follows:
first, according to the luminance difference between each pixel region and the target pixel region, the color lump size of each pixel region is determined, and then, the light emitting duration of the pixel unit in any color lump in any pixel region in each pixel region is determined, for example, the light emitting duration of the pixel unit in the corresponding color lump in the regions 1-3 and 5-7 in fig. 1 is determined, respectively, where the color lump size of the region 1 is 2 × 2, the light emitting duration is t1, the color lump size of the region 2 is 3 × 3, the light emitting duration is t2, the color lump size of the region 3 is 4 × 4, the light emitting duration is t3, the color lump size of the region 5 is 4 × 4, the light emitting duration is t5, the color lump size of the region 6 is 3 × 3, the light emitting duration is t6, the color lump size of the region 7 is 4 × 4, and the light emitting duration is t 7. In the specific implementation process, if the number of times that the display panel can display an image per second is 60, the light emitting duration of the pixel unit in any color block is less than or equal to 16.6ms, and at this time, t1, t2, t3, t5, t6, and t7 are all less than or equal to 16.6 ms. Of course, in practical applications, the size of the color block of the corresponding pixel region and the light emitting time of the pixel unit therein may be set according to the brightness difference between the brightness of each pixel region and the target brightness of the target pixel region, which is not illustrated herein.
Then, after the size of the color block of any pixel region in each pixel region and the light-emitting duration of the pixel unit are determined, the light-emitting duration of the pixel unit in any color block in any corresponding pixel region is adjusted, so that the brightness of the corresponding color block and the target brightness are smaller than a preset threshold, the brightness of each pixel region and the target brightness are smaller than the preset threshold, the uniformity of the display brightness is ensured, and the display effect is improved.
In the embodiment of the present invention, step S302: adjusting the light emitting duration of the pixel unit in any color block to make the brightness of the color block smaller than the preset threshold value with respect to the target brightness, including: and adjusting the light-emitting duration of not all the pixel units in any color block, and controlling the corresponding pixel units to emit light at preset brightness so as to enable the space between the brightness of the color block and the target brightness to be smaller than the preset threshold value, wherein the preset brightness is larger than the target brightness. In a specific implementation process, after the light-emitting duration of the pixel units in any color block of any pixel region is determined, the light-emitting duration of not all the pixel units in any color block is adjusted, and the corresponding pixel units are controlled to emit light at a preset brightness, so that the brightness of the color block and the target brightness are smaller than a preset threshold value and larger than the target brightness. For example, the target brightness may be 500nit, the preset brightness may be 800nit, one or more pixels with a size of 2 × 2 of a color block in the 255 gray-scale replacement region 1 may be controlled, and the replaced pixels may be controlled to flicker and jump within a region range where the color block is located, that is, the replaced pixels are controlled to change positions in each frame, for example, corresponding pixels may be sequentially replaced in a clockwise direction, corresponding pixels may also be sequentially replaced in a counterclockwise direction, and of course, corresponding pixels may also be replaced in other manners according to application requirements, which is not described herein again. In addition, in order to ensure that the brightness of the corresponding color block is adjusted to be smaller than the preset threshold value with respect to the target brightness, 4 pixels in the size of 2 × 2 of the color block cannot be replaced by the 255 gray scale at the same time, and if the pixels are replaced at the same time, the brightness of the area range where the corresponding color block is located is 800nit, which is obviously greater than the target brightness of 500 nit. In addition, when the pixel points required to be replaced by the 255 gray scales are determined, the corresponding pixel points are controlled to emit light with the corresponding light emitting duration and the preset brightness, so that the display uniformity is ensured.
In the embodiment of the present invention, in step S104: according to the brightness difference, after adjusting the light-emitting duration of the pixel units in each pixel region to make the brightness of each pixel region and the target brightness smaller than a preset threshold, the method further comprises: and if the image data of the picture to be displayed is received, controlling the pixel units in the corresponding pixel areas to emit light with the corresponding light-emitting duration.
In the embodiment of the present invention, after the brightness of each pixel region of the display panel is adjusted, if the image data of the picture to be displayed is received, the pixel units in the corresponding pixel region are controlled to emit light with the corresponding light-emitting time duration, that is, before the picture to be displayed is displayed by the display panel, the brightness of each pixel region of the display panel is adjusted first, so as to determine the color block size and the corresponding light-emitting time duration of each pixel region, and then, when the image data of the picture to be displayed is received by the display panel, the pixel units in the corresponding pixel region are controlled to emit light with the corresponding light-emitting time duration, so that the display uniformity of the picture to be displayed by the display panel is ensured, and the display effect of the picture to be displayed is ensured.
Based on the same inventive concept, an embodiment of the present invention further provides a brightness adjusting apparatus for a display panel, as shown in fig. 7, the brightness adjusting apparatus includes:
an input unit 10 for inputting a brightest gray scale picture;
a first determining unit 20, configured to determine a target pixel region and a target brightness corresponding to the target pixel region;
a second determining unit 30 for determining a luminance difference between the luminance of each pixel region except the target pixel region and the target luminance;
and the adjusting unit 40 is configured to adjust the light emitting duration of the pixel unit in each pixel region according to the brightness difference, so that the brightness between each pixel region and the target brightness is smaller than a preset threshold.
In the embodiment of the present invention, since the principle of the brightness adjustment device for solving the problem is similar to that of the brightness adjustment method, the implementation of the brightness adjustment device can refer to the implementation of the display panel, and repeated details are not repeated.
In the embodiment of the present invention, the adjusting unit 40 is configured to:
according to the brightness difference, carrying out color block division on each pixel area, wherein the larger the brightness difference is, the smaller the color block division of the corresponding pixel area is;
and adjusting the light emitting duration of the pixel units in each color block in each pixel area.
In the embodiment of the present invention, the adjusting unit 40 is configured to:
determining the light-emitting time of a pixel unit in any color block in any pixel area in each pixel area;
and adjusting the light-emitting duration of the pixel unit in any color block so as to enable the brightness of the color block to be smaller than the preset threshold value with the target brightness.
In the embodiment of the present invention, the adjusting unit 40 is configured to:
and adjusting the light-emitting duration of not all the pixel units in any color block, and controlling the corresponding pixel units to emit light at preset brightness so as to enable the space between the brightness of the color block and the target brightness to be smaller than the preset threshold value, wherein the preset brightness is larger than the target brightness.
In an embodiment of the present invention, the brightness adjusting apparatus further includes:
and the control unit is used for controlling the pixel units in the corresponding pixel areas to emit light with corresponding light-emitting duration if the image data of the picture to be displayed is received.
Based on the same inventive concept, an embodiment of the present invention further provides a display device, as shown in fig. 8, including a display panel 100 and a brightness adjustment device 200 as described above. In the embodiment of the present invention, since the principle of the display device for solving the problem is similar to that of the display panel, the implementation of the display device can refer to the implementation of the display panel, and repeated descriptions are omitted.
In a specific implementation process, the display device provided in the embodiment of the present invention may be a mobile phone shown in fig. 8, and of course, the display device provided in the embodiment of the present invention may also be any product or component having a display function, such as a tablet computer, a television, a display, a notebook computer, a digital photo frame, and a navigator. Other essential components of the display device are understood by those skilled in the art, and are not described herein nor should they be construed as limiting the present invention.
Based on the same inventive concept, as shown in fig. 9, an embodiment of the present invention further provides a computer device, including: a memory 50, a processor 60 and a computer program stored on the memory 50 and executable on the processor, which when executing the program performs the steps of the brightness adjustment method as described above.
The processor 60 may be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or the like that implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present invention. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the brightness adjusting method disclosed in the embodiments of the present invention may be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 50, and the processor 60 reads the information in the memory 50 and completes the steps of the signal processing flow in combination with the hardware thereof.
Specifically, the processor 60 is configured to read a program in the memory 50 and execute any step of the brightness adjustment method.
Based on the same technical concept, embodiments of the present application also provide a computer-readable storage medium having a computer program stored thereon. The computer program, when executed by a processor, implements any of the steps described in the aforementioned brightness adjustment method.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (10)
1. A method for adjusting brightness of a display panel includes:
inputting the brightest gray scale picture;
determining a target pixel area and target brightness corresponding to the target pixel area;
determining the brightness difference between the brightness of each pixel area except the target pixel area and the target brightness;
and adjusting the light-emitting duration of the pixel units in each pixel area according to the brightness difference so as to enable the brightness of each pixel area to be smaller than a preset threshold value with the target brightness.
2. The method of claim 1, wherein the adjusting the light emitting time duration of the pixel units in each pixel region according to the brightness difference comprises:
according to the brightness difference, carrying out color block division on each pixel area, wherein the larger the brightness difference is, the smaller the color block division of the corresponding pixel area is;
and adjusting the light emitting duration of the pixel units in each color block in each pixel area.
3. The method of claim 2, wherein the adjusting the light emitting duration of the pixel units in each color block in each pixel region comprises:
determining the light-emitting time of a pixel unit in any color block in any pixel area in each pixel area;
and adjusting the light-emitting duration of the pixel unit in any color block so as to enable the brightness of the color block to be smaller than the preset threshold value with the target brightness.
4. The method of claim 3, wherein the adjusting the emission duration of the pixel units within any color block comprises:
and adjusting the light-emitting duration of not all the pixel units in any color block, and controlling the corresponding pixel units to emit light at preset brightness so as to enable the space between the brightness of the color block and the target brightness to be smaller than the preset threshold value, wherein the preset brightness is larger than the target brightness.
5. The method according to claim 1, wherein after the adjusting of the light emitting time period of the pixel units in the respective pixel regions according to the brightness difference, the method further comprises:
and if the image data of the picture to be displayed is received, controlling the pixel units in the corresponding pixel areas to emit light with the corresponding light-emitting duration.
6. A brightness adjustment device for a display panel, comprising:
the input unit is used for inputting the brightest gray scale picture;
the device comprises a first determining unit, a second determining unit and a control unit, wherein the first determining unit is used for determining a target pixel area and target brightness corresponding to the target pixel area;
a second determination unit configured to determine a luminance difference between the luminance of each pixel region other than the target pixel region and the target luminance;
and the adjusting unit is used for adjusting the light emitting duration of the pixel units in each pixel area according to the brightness difference so as to enable the brightness of each pixel area to be smaller than a preset threshold value with the target brightness.
7. The apparatus of claim 6, wherein the adjustment unit is to:
according to the brightness difference, carrying out color block division on each pixel area, wherein the larger the brightness difference is, the smaller the color block division of the corresponding pixel area is;
and adjusting the light emitting duration of the pixel units in each color block in each pixel area.
8. A display device comprising a display panel and the luminance adjusting device according to claim 6 or 7.
9. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the steps of the brightness adjustment method according to any one of claims 1 to 5 when executing the program.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the brightness adjustment method as claimed in any one of claims 1 to 5.
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