CN109637499A - The control method and device of display panel brightness - Google Patents
The control method and device of display panel brightness Download PDFInfo
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- CN109637499A CN109637499A CN201910045253.3A CN201910045253A CN109637499A CN 109637499 A CN109637499 A CN 109637499A CN 201910045253 A CN201910045253 A CN 201910045253A CN 109637499 A CN109637499 A CN 109637499A
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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
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/10—Intensity circuits
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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
The invention discloses a kind of control method and device of display panel brightness.Wherein, this method comprises: obtaining multiple distribution subregions of display panel and the pixel number of each distribution subregion, wherein each distribution subregion is corresponding with initial pixel offset；Determining pixel compensation coefficient corresponding with each distribution pixel number of subregion；According to the initial pixel offset and pixel compensation coefficient of distribution subregion, object pixel offset corresponding with each distribution subregion is calculated；It is adjusted using pixel output numerical value of the object pixel offset to each distribution subregion of display panel, with the screen intensity controlled the display panel.The present invention, which solves display panel, to cause brightness disproportionation due to the decaying of signal, be easy to appear brightness disproportionation phenomenon, and user is caused to watch uncomfortable technical problem.
Description
Technical field
The present invention relates to the control fields of display panel, in particular to a kind of control method of display panel brightness
And device.
Background technique
In the related art, display panel (panal) usually will appear brightness irregularities, cause showing for various display traces
As there are many reason of this phenomenon occurs, and one of which is caused defeated due to the circuit layout route process in display panel
It is inconsistent to enter signal decaying, so as to cause display brightness occurrence law sex differernce, since the driving chip of terminal is normally at end
The bottom at end, cause signal from panel bottom to panel at the top of towards decaying, for example, defeated in each region to display panel
When entering identical value, the brightness disunity of display panel, brightness can be weaker than terminal bottom at the top of panel in the longitudinal direction, and panel two sides
Brightness can be weaker than the brightness among terminal, cause user watch display panel on display content when, often will appear tired
Lao Du is aggravated, and also reduces interest of the user using display panel when.
For above-mentioned problem, currently no effective solution has been proposed.
Summary of the invention
The embodiment of the invention provides a kind of control method and device of display panel brightness, at least to solve display panel
Brightness disproportionation can be caused due to the decaying of signal, be easy to appear brightness disproportionation phenomenon, caused user to watch uncomfortable technology and ask
Topic.
According to an aspect of an embodiment of the present invention, a kind of control method of display panel brightness is provided, comprising: obtain
The pixel number of multiple distribution subregions of display panel and each distribution subregion, wherein each distribution subregion is corresponding with
Initial pixel offset；Determining pixel compensation coefficient corresponding with each distribution pixel number of subregion；According to described
It is distributed the initial pixel offset and pixel compensation coefficient of subregion, calculates target picture corresponding with each distribution subregion
Plain offset；It is adjusted using pixel output numerical value of the object pixel offset to each distribution subregion of display panel
It is whole, to control the screen intensity of the display panel.
Further, the step of the determination and the corresponding pixel compensation coefficient of each distribution pixel number of subregion
Suddenly, comprising: obtain and each distribution subregion obtained after data type conversion is carried out to the pixel initial value of the display panel
Pixel number；Obtain the mapping relations between pixel number range and pixel compensation coefficient；According to where the pixel number
Numberical range and the mapping relations, determine it is each distribution subregion pixel compensation coefficient.
Further, the multiple distribution subregions for obtaining display panel include: the panel coefficient for obtaining display panel,
In, the panel coefficient includes at least: panel length and panel width；According to the panel coefficient, the display panel is drawn
It is divided into multiple distribution subregions of same size.
Further, obtain display panel multiple distribution subregions and it is each distribution subregion pixel number it
Afterwards, the method also includes: determine each position of the distribution subregion in the display panel；According to each described point
Position of the cloth subregion in the display panel determines the initial pixel offset of each distribution subregion.
Further, the position according to each distribution subregion in the display panel, determines each described point
The initial pixel offset of cloth subregion includes: to determine according to the distribution subregion in the lengthwise position of the display panel
First sub- offset；According to the distribution subregion in the lateral position of the display panel, the second sub- offset is determined；It is cumulative
The first sub- offset and the second sub- offset, determine the initial pixel offset.
Further, number is exported using pixel of the object pixel offset to each distribution subregion of display panel
Value is adjusted, and includes: defeated in the pixel for adjusting each distribution subregion to control the screen intensity of the display panel
Out after numerical value, the pixel output numerical value is converted into output voltage values；Pass through the output voltage values control of each distribution subregion
Make the overall brightness of the display panel.
According to another aspect of an embodiment of the present invention, a kind of control device of display panel brightness is additionally provided, comprising: obtain
Unit is taken, for obtaining multiple distribution subregions of display panel and the pixel number of each distribution subregion, wherein Mei Gefen
Cloth subregion is corresponding with initial pixel offset；Determination unit, for the determining pixel number with each distribution subregion
Corresponding pixel compensation coefficient；Computing unit, for the initial pixel offset and pixel compensation according to the distribution subregion
Coefficient calculates object pixel offset corresponding with each distribution subregion；Adjustment unit, for utilizing the target picture
Plain offset is adjusted the pixel output numerical value of each distribution subregion of display panel, to control the display panel
Screen intensity.
Further, the determination unit includes: the first acquisition module, for obtaining at the beginning of the pixel of the display panel
Initial value carries out the pixel number of each distribution subregion obtained after data type conversion；Second obtains module, for obtaining picture
Mapping relations between plain numberical range and pixel compensation coefficient；First determining module, for according to where the pixel number
Numberical range and the mapping relations, determine it is each distribution subregion pixel compensation coefficient.
Further, acquiring unit includes: that third obtains module, for obtaining the panel coefficient of display panel, wherein institute
It states panel coefficient to include at least: panel length and panel width；Division module, for that described will show according to the panel coefficient
Show that panel is divided into multiple distribution subregions of same size.
Further, the control device of the display panel brightness further include: the second determining module, for obtaining display
After the pixel number of multiple distribution subregions of panel and each distribution subregion, determine each distribution subregion in institute
State the position in display panel；Third determining module, for according to each distribution subregion in the display panel
Position determines the initial pixel offset of each distribution subregion.
Further, the third determining module includes: the first determining submodule, for existing according to the distribution subregion
The lengthwise position of the display panel determines the first sub- offset；Second determines submodule, for according to the distribution subregion
In the lateral position of the display panel, the second sub- offset is determined；Third determines submodule, and for adding up, first son is mended
Value and the second sub- offset are repaid, determines the initial pixel offset.
Further, the adjustment unit includes: conversion module, in the pixel for adjusting each distribution subregion
After output numerical value, the pixel output numerical value is converted into output voltage values；Control module, for passing through each distribution subregion
Output voltage values control the overall brightness of the display panel.
According to another aspect of an embodiment of the present invention, a kind of storage medium is additionally provided, the storage medium is for storing
Program, wherein equipment where described program controls the storage medium when being executed by processor executes above-mentioned any one institute
The control method for the display panel brightness stated.
According to another aspect of an embodiment of the present invention, a kind of processor is additionally provided, the processor is used to run program,
Wherein, the control method of display panel brightness described in above-mentioned any one is executed when described program is run.
In embodiments of the present invention, multiple distribution subregions of display panel and the pixel number of each distribution subregion are obtained
Value, wherein each distribution subregion is corresponding with initial pixel offset, the determining pixel number with each distribution subregion
Corresponding pixel compensation coefficient calculates and each point according to the initial pixel offset and pixel compensation coefficient of distribution subregion
The corresponding object pixel offset of cloth subregion, using object pixel offset to the picture of each distribution subregion of display panel
Plain output numerical value is adjusted, with the screen intensity controlled the display panel.In this embodiment it is possible to by each to display panel
A distribution subregion carries out pixel compensation value, adjusts the pixel value of each sub-regions, guarantees the pixel value of each sub-regions as far as possible
Unanimously, in this way when being converted into voltage by pixel value, the display brightness of driving panel also can be consistent, so that display panel
Uniformity, and then solution display panel can cause brightness disproportionation due to the decaying of signal, be easy to appear brightness disproportionation phenomenon, lead
Uncomfortable technical problem is watched at family of applying.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is a kind of flow chart of the control method of display panel brightness according to an embodiment of the present invention；
Fig. 2 is a kind of schematic diagram of the brightness adjusting section of display panel according to the present invention；
Fig. 3 is a kind of schematic diagram of the control device of display panel brightness according to an embodiment of the present invention.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The model that the present invention protects all should belong in member's every other embodiment obtained without making creative work
It encloses.
It should be noted that description and claims of this specification and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so as to the embodiment of the present invention described herein can in addition to illustrating herein or
Sequence other than those of description is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that cover
Cover it is non-exclusive include, for example, the process, method, system, product or equipment for containing a series of steps or units are not necessarily limited to
Step or unit those of is clearly listed, but may include be not clearly listed or for these process, methods, product
Or other step or units that equipment is intrinsic.
To understand the present invention convenient for user, solution is made to part term or noun involved in various embodiments of the present invention below
It releases:
GPU, Graphics Process ing Unit, graphics processor are a kind of special progress image fortune at the terminal
Calculate the microprocessor of work.
AP, Application Processor, application processor.
DAC, Digital Analog Convertor, digital analog converter, for converting simulation for digital signal
Signal is exported in a manner of electric current, voltage or charge.
Panel, display panel.
The following every embodiments of the present invention can be applied in various display panels, for the type and model of display panel
It is not specifically limited, display panel can include but is not limited to: LED display, PC machine display screen, panel display screen etc., this hair
Can occur in bright items embodiment to the brightness irregularities of display panel so as to cause display brightness occurrence law sex differernce
The phenomenon that various defects and trace, is eliminated, especially in oled panel, due to current terminal or various other aobvious
Show that the driving chip of panel is generally located on panel bottom, causes driving signal from panel bottom to panel bottom (vertical direction)
Obvious decaying, i.e., at the top of panel bottom and panel between display brightness can have apparent difference, in same input value
The top brightness of display panel can be weaker than panel bottom, meanwhile, it also will appear such case in the horizontal side of display panel, i.e., it is aobvious
Show that the intermediate luminance of panel can be better than the brightness of two sides.For multiple panels, the driving of panel loads bigger, this brightness
Uneven situation is more obvious.
The following embodiments of the present invention can carry out multi-region domain compensation, adjustment, according to each region and driving for display panel
The distance of chip adjusts the pixel compensation value in each region, and then adjusts adjustment output voltage, so as to adjust the entirety of display panel
Brightness guarantees the brightness uniformity of display panel, promotes the precision of compensation, realizes that the brightness of display panel is uniform.Below to each
Embodiment is described in detail.
Embodiment one
According to embodiments of the present invention, a kind of control method embodiment of display panel brightness is provided, it should be noted that
Step shown in the flowchart of the accompanying drawings can execute in a computer system such as a set of computer executable instructions, and
It, in some cases, can be to be different from sequence execution institute herein and although logical order is shown in flow charts
The step of showing or describing.
In embodiments of the present invention, display area entire on display panel can be divided into the distribution of same size in advance
Subregion, the quantity for being distributed subregion can such as be divided into the distribution subregion of 9 parts of same sizes with self-setting.Currently due to
On the circuit layout route of display panel, display panel one end (such as terminal bottom) input analog signal (such as input current/
Voltage) after, signal is decayed in each distribution subregion at regularity, will lead to that display brightness is variant, and the application can in this way
Different degrees of compensation is carried out with the pixel value for each distribution subregion input, by pixel compensation value, realizes that pixel is defeated
The adjustment being worth out, and then when being converted into output voltage by pixel value, output voltage is directly adjusted, and then control the display panel
Display brightness is uniform.
For display panel, linear relationship can be kept between output pixel value and output voltage, the application utilizes this
Kind relationship, directly adjusts the output pixel value of the subregion of each display panel, it is however generally that, the output of panel bottom can be adjusted
Pixel value is lower than the output pixel value at the top of panel, and the output pixel value of two sides can be higher than among panel on panel-level direction
Output pixel value, in this manner it is possible to which display panel can be directly changed after being converted to output voltage values by output pixel value
Display brightness.
In the embodiment of the present invention, pixel value can be handled by graphics processor or application processor, to obtain
Multiple pixel values or grayscale value.The bit wide for the pixel value that the graphics processor is handled is generally lower, such as 8bit, due to working as
The preceding bit wide of display panel output and the display brightness of panel is not linear relationship, in this way, it is necessary to adjust display panel
Bit wide is exported, after carrying out data type conversion to pixel value, (such as 8bit is converted into the wide pixel value of available high bit
Bit wide pixel and output voltage, the panel luminance of 11bit, 11bit are linear).And then the pixel value wide to the high bit
It is adjusted, the output pixel value of display panel can be made to be consistent as far as possible, in this way after adjusting output voltage, can also protect
The brightness for demonstrate,proving display panel is consistent.
Fig. 1 is a kind of flow chart of the control method of display panel brightness according to an embodiment of the present invention, as shown in Figure 1,
This method comprises the following steps:
Step S102 obtains multiple distribution subregions of display panel and the pixel number of each distribution subregion, wherein
Each distribution subregion is corresponding with initial pixel offset；
Step S104 determines pixel compensation coefficient corresponding with each distribution pixel number of subregion；
Step S106 is calculated and each distribution according to the initial pixel offset and pixel compensation coefficient of distribution subregion
The corresponding object pixel offset of subregion；
Step S108, using object pixel offset to the pixel output numerical value of each distribution subregion of display panel into
Row adjustment, with the screen intensity controlled the display panel.
It through the above steps, can be using the picture of the multiple distribution subregions and each distribution subregion that obtain display panel
Prime number value, wherein each distribution subregion is corresponding with initial pixel offset, the determining pixel with each distribution subregion
The corresponding pixel compensation coefficient of numerical value calculates and every according to the initial pixel offset and pixel compensation coefficient of distribution subregion
The corresponding object pixel offset of a distribution subregion, using object pixel offset to each distribution subregion of display panel
Pixel output numerical value be adjusted, with the screen intensity controlled the display panel.In this embodiment it is possible to by display surface
The each distribution subregion of plate carries out pixel compensation value, adjusts the pixel value of each sub-regions, guarantees the picture of each sub-regions as far as possible
Element value is consistent, and in this way when being converted into voltage by pixel value, the display brightness of driving panel also can be consistent, so that display surface
The uniformity of plate, and then solution display panel can cause brightness disproportionation due to the decaying of signal, and it is existing to be easy to appear brightness disproportionation
As causing user to watch uncomfortable technical problem.
Above steps is illustrated below.
Step S102 obtains multiple distribution subregions of display panel and the pixel number of each distribution subregion, wherein
Each distribution subregion is corresponding with initial pixel offset.
In embodiments of the present invention, the distribution subregion of division can be sets itself, optionally, obtain display panel
Multiple distribution subregions include: obtain display panel panel coefficient, wherein panel coefficient includes at least: panel length and
Panel width；According to panel coefficient, display panel is divided into multiple distribution subregions of same size.
The distribution subregion of different number can be respectively divided according to the length and width of display panel, for example, foundation
The panel length of display panel is divided into 8 distribution subregions, and the panel width according to display panel is divided into 4 distribution sub-districts
Domain.In the present invention, voltage compensation can all be carried out on horizontal and vertical to display panel.
As an optional example of the invention, the pixel bit wide for being distributed subregion be can be to the first of graphics processor output
Pixel value corresponding to beginning pixel bit wide carries out the pixel value obtained after data type conversion, for example, graphics processor output
Initial pixel bit wide is 8bit, and pixel value can be lesser data value at this time, such as 96,128,160,192,224,255, and
After data type conversion, the wide pixel value of available high bit, for example, after data type conversion, pixel bit wide
For 11bit, at this point, pixel value can be biggish numerical value, for example, can obtain to pixel value 96 after data type conversion
To 240 pixel value；To pixel value 128 after data type conversion, available 450 pixel value；To pixel value
160 after data type conversion, available 750 pixel value；To 192 pixel value after data type conversion,
Available 1100 pixel value；To 224 pixel value by conversion after, available 1639 pixel value；To 255
Pixel value is after data type conversion, available 2047 pixel value.
In embodiments of the present invention, in the pixel of the multiple distribution subregions and each distribution subregion that obtain display panel
After numerical value, method further include: determine position of each distribution subregion in display panel；Exist according to each distribution subregion
Position in display panel determines the initial pixel offset of each distribution subregion.
It is determined each as an optional example of the invention according to position of each distribution subregion in display panel
The initial pixel offset of distribution subregion includes: the lengthwise position according to distribution subregion in display panel, determines the first son
Offset；According to distribution subregion in the lateral position of display panel, the second sub- offset is determined；Cumulative first sub- offset and
Second sub- offset, determines initial pixel offset.
The above-mentioned pixel compensation corresponding to lengthwise position and lateral position can be determined respectively, and following table 1 is shown pair
It should be in the initial pixel offset of lengthwise position and lateral position.
Table 1
| Offset | +1 | +0 | +0 | +1 | |
| H_b0 | H_b1 | H_b2 | H_b3 | ||
| +3 | V_b0 | ||||
| +2 | V_b1 | ||||
| +1 | V_b2 | ||||
| +0 | V_b3 | ||||
| +0 | V_b4 | ||||
| -1 | V_b5 | ||||
| -2 | V_b6 | ||||
| -3 | V_b7 |
Wherein, above-mentioned V_b0, V_b1, V_b2, V_b3, V_b4, V_b5, V_b6, V_b7 correspond to longitudinal distribution
Region can also indicate that the vertical direction of screen, wherein the corresponding pixel compensation value of V_b0 is+3；The corresponding pixel of V_b1 is mended
Repaying value is+2；The corresponding pixel compensation value of V_b2 is+1；The corresponding pixel compensation value of V_b3 is+0；The corresponding pixel compensation of V_b4
Value is+0；The corresponding pixel compensation value of V_b5 is -1；The corresponding pixel compensation value of V_b6 is -2；The corresponding pixel compensation value of V_b7
It is -3.The longitudinal offset can be understood as the sub- offset of above-mentioned first.
Optionally, above-mentioned H_b0, H_b1, H_b2, H_b3 can indicate the distribution subregion in display panel transverse direction, can also
To indicate the transverse direction of display panel screen.Wherein, the corresponding pixel compensation value of H_b0 is+1；The corresponding pixel compensation of H_b1
Value is+0；The corresponding pixel compensation value of H_b2 is+0；The corresponding pixel compensation value of H_b3 is+1.Offset in the transverse direction can be with
It is interpreted as the second above-mentioned sub- offset.
Be to display panel be the case where length is greater than width in the content that the above-mentioned table 1 of the present invention indicates, due to length compared with
It is long, need to divide more subregions, and in the lower display panel of width, less distribution subregion can be divided.
The initial compensation value in above-mentioned two direction is added up, it can obtain initial compensation value.
Step S104, determining pixel compensation coefficient corresponding with each distribution pixel number of subregion.
Optionally, in embodiments of the present invention, pixel corresponding with each distribution pixel number of subregion is determined
Penalty coefficient includes: each distribution subregion for obtaining and obtain after data type conversion to the pixel initial value of display panel
Pixel number；Obtain the mapping relations between pixel number range and pixel compensation coefficient；According to the number where pixel number
It is worth range and mapping relations, determines the pixel compensation coefficient of each distribution subregion.
In embodiments of the present invention, numberical range can be sets itself, for example, according to obtaining after data type conversion
Pixel number determine the range of pixel number.
Above-mentioned mapping relations can indicate the mapping relations between pixel number range and pixel coefficient, specifically can be with
As shown in table 2 below,
Table 2
| Pixel number range | Pixel coefficient | Offset |
| 1536-2047 | 2.5 | |
| 1024-1535 | 2 | |
| 512-1023 | 1.5 | |
| 0-511 | 1 |
For example, the initial pixel offset for corresponding to a distribution subregion is+4, determining that its pixel number is 1200
Afterwards, its pixel number range is determined in 1024-1535, and corresponding pixel coefficient is 2, after product calculates, can be determined
Its final object pixel offset is 8.
Step S106 is calculated and each distribution according to the initial pixel offset and pixel compensation coefficient of distribution subregion
The corresponding object pixel offset of subregion.
Step S108, using object pixel offset to the pixel output numerical value of each distribution subregion of display panel into
Row adjustment, with the screen intensity controlled the display panel.
It can utilize, voltage compensation value adjusts the pixel output numerical value of the various pieces subregion of display panel
It is whole, it in adjustment, can be on the basis of original voltage, the object pixel compensation for each distribution subregion that accumulation calculating goes out
Value, and then determine the pixel output numerical value of each subregion.By adjustment pixel output numerical value, directly adjust each sub-district
The output voltage in domain, and then adjust the screen intensity of display panel.
Fig. 2 is a kind of schematic diagram of the brightness adjusting section of display panel according to the present invention, as shown in Fig. 2, the adjustment
Module includes: graphics processor 21GPU, digital gamma corrector 23, pixel compensation module 25, digital-to-analogue conversion module 27
(or digital analog converter DAC), wherein graphics processor 21 (or application processor AP) exports the initial picture of display panel
Element value, wherein the bit wide of each pixel value is the first default bit wide (such as 8bit), digital gamma corrector 23, for multiple
Pixel value carries out data type conversion, obtains multiple pixel values of the second default bit wide (such as 11bit), wherein the second default position
It is wide to be higher than the first default bit wide；The function of above-mentioned steps S102 to step S108 may be implemented in pixel compensation module 25, with adjustment
By pixel output, digital pixel signal can be converted to output voltage or output electric current by digital-to-analogue conversion module 27,
To realize the adjustment of the brightness to display panel.
The case where above-described embodiment through the invention, brightness irregularities caused by can decaying to the signal of terminal, pass through
The mode that pixel compensation is carried out to each distribution subregion, adjusts pixel output numerical value, thus unified each distribution subregion
Pixel output numerical value reduces brightness disproportionation phenomenon, so that display panel keeps the effect of brightness uniformity.
Below by another embodiment, the present invention is described in detail.
Embodiment two
Fig. 3 is a kind of schematic diagram of the control device of display panel brightness according to an embodiment of the present invention, as shown in figure 3,
The apparatus may include: acquiring unit 31, determination unit 33, computing unit 35, adjustment unit 37,
Acquiring unit 31, for obtaining multiple distribution subregions of display panel and the pixel number of each distribution subregion
Value, wherein each distribution subregion is corresponding with initial pixel offset；
Determination unit 33, for determining pixel compensation coefficient corresponding with each distribution pixel number of subregion；
Computing unit 35 calculates and every for the initial pixel offset and pixel compensation coefficient according to distribution subregion
The corresponding object pixel offset of a distribution subregion；
Adjustment unit 37, for being exported using pixel of the object pixel offset to each distribution subregion of display panel
Numerical value is adjusted, with the screen intensity controlled the display panel.
The control device of above-mentioned display panel brightness can obtain multiple distributions of display panel by acquiring unit 31
The pixel number in region and each distribution subregion, wherein each distribution subregion is corresponding with initial pixel offset, by true
The determining pixel compensation coefficient corresponding with each distribution pixel number of subregion of order member 33, passes through computing unit 35
According to the initial pixel offset and pixel compensation coefficient of distribution subregion, object pixel corresponding with each distribution subregion is calculated
Offset exports number using pixel of the object pixel offset to each distribution subregion of display panel by adjusting unit 37
Value is adjusted, with the screen intensity controlled the display panel.In this embodiment it is possible to by display panel each distribution
Region carries out pixel compensation value, adjusts the pixel value of each sub-regions, guarantees that the pixel value of each sub-regions is consistent as far as possible, in this way
When being converted into voltage by pixel value, the display brightness of driving panel also can be consistent, so that the uniformity of display panel,
And then solution display panel can cause brightness disproportionation due to the decaying of signal, be easy to appear brightness disproportionation phenomenon, user is caused to see
See uncomfortable technical problem.
Optionally it is determined that unit includes: the first acquisition module, the pixel initial value for obtaining to display panel is counted
The pixel number of each distribution subregion obtained after being converted according to type；Second obtains module, for obtaining pixel number range
With the mapping relations between pixel compensation coefficient；First determining module for the numberical range where foundation pixel number and is reflected
Relationship is penetrated, determines the pixel compensation coefficient of each distribution subregion.
It is another that optionally acquiring unit includes: that third obtains module, for obtaining the panel coefficient of display panel,
In, panel coefficient includes at least: panel length and panel width；Division module, for according to panel coefficient, display panel to be drawn
It is divided into multiple distribution subregions of same size.
In an optional example of the invention, the control device of display panel brightness further include: the second determining module is used for
After the pixel number of the multiple distribution subregions and each distribution subregion that obtain display panel, each distribution sub-district is determined
Position of the domain in display panel；Third determining module, for the position according to each distribution subregion in display panel, really
The initial pixel offset of fixed each distribution subregion.
As optional embodiment of the present invention, third determining module includes: the first determining submodule, for according to distribution
Region determines the first sub- offset in the lengthwise position of display panel；Second determines submodule, for existing according to distribution subregion
The lateral position of display panel determines the second sub- offset；Third determines submodule, for the first sub- offset and second of adding up
Sub- offset determines initial pixel offset.
In embodiments of the present invention, adjustment unit includes: conversion module, in the pixel for adjusting each distribution subregion
After output numerical value, pixel output numerical value is converted into output voltage values；Control module, for passing through the defeated of each distribution subregion
The overall brightness that voltage value controls the display panel out.
The control device of above-mentioned display panel brightness can also include processor and memory, above-mentioned acquiring unit 31,
Determination unit 33, computing unit 35, adjustment unit 37 is equal to be stored in memory as program unit, is deposited by processor execution
Above procedure unit in memory is stored up to realize corresponding function.
Include kernel in above-mentioned processor, is gone in memory to transfer corresponding program unit by kernel.Kernel can be set
One or more utilizes the object pixel offset to the picture of each distribution subregion of display panel by adjusting kernel parameter
Plain output numerical value is adjusted, with the screen intensity controlled the display panel.
Above-mentioned memory may include the non-volatile memory in computer-readable medium, random access memory
(RAM) and/or the forms such as Nonvolatile memory, such as read-only memory (ROM) or flash memory (flash RAM), memory includes extremely
A few storage chip.
According to another aspect of an embodiment of the present invention, a kind of storage medium is additionally provided, storage medium is used to store program,
Wherein, equipment where program controls storage medium when being executed by processor executes the display panel brightness of above-mentioned any one
Control method.
According to another aspect of an embodiment of the present invention, a kind of processor is additionally provided, processor is used to run program,
In, program executes the control method of the display panel brightness of above-mentioned any one when running.
The embodiment of the invention provides a kind of equipment, equipment include processor, memory and storage on a memory and can
The program run on a processor, processor perform the steps of the multiple distribution sub-districts for obtaining display panel when executing program
The pixel number in domain and each distribution subregion, wherein each distribution subregion is corresponding with initial pixel offset；It is determining and every
The corresponding pixel compensation coefficient of pixel number of a distribution subregion；According to the initial pixel offset and pixel of distribution subregion
Penalty coefficient calculates object pixel offset corresponding with each distribution subregion；Using object pixel offset to display surface
The pixel output numerical value of each distribution subregion of plate is adjusted, with the screen intensity controlled the display panel.
Optionally, when above-mentioned processor executes program, acquisition can also be performed the steps of at the beginning of the pixel of display panel
Initial value carries out the pixel number of each distribution subregion obtained after data type conversion；It obtains pixel number range and pixel is mended
Repay the mapping relations between coefficient；According to the numberical range and mapping relations where pixel number, each distribution subregion is determined
Pixel compensation coefficient.
Optionally, when above-mentioned processor executes program, the panel for obtaining display panel can also be performed the steps of
Number, wherein panel coefficient includes at least: panel length and panel width；According to panel coefficient, display panel is divided into identical
Multiple distribution subregions of size
Optionally, when above-mentioned processor executes program, multiple points in acquisition display panel can also be performed the steps of
After the pixel number of cloth subregion and each distribution subregion, position of each distribution subregion in display panel is determined；
According to position of each distribution subregion in display panel, the initial pixel offset of each distribution subregion is determined.
Optionally, it when above-mentioned processor executes program, can also perform the steps of according to distribution subregion in display surface
The lengthwise position of plate determines the first sub- offset；According to distribution subregion in the lateral position of display panel, determine that the second son is mended
Repay value；Cumulative first sub- offset and the second sub- offset, determine initial pixel offset.
Optionally, when above-mentioned processor executes program, it can also perform the steps of and adjust each distribution subregion
After pixel output numerical value, pixel output numerical value is converted into output voltage values；Pass through the output voltage values of each distribution subregion
The overall brightness controlled the display panel.
Present invention also provides a kind of computer program products, when executing on data processing equipment, are adapted for carrying out just
The program of beginningization there are as below methods step: multiple distribution subregions of display panel and the pixel number of each distribution subregion are obtained
Value, wherein each distribution subregion is corresponding with initial pixel offset；Determination is corresponding with each distribution pixel number of subregion
Pixel compensation coefficient；According to the initial pixel offset and pixel compensation coefficient of distribution subregion, calculate and each distribution
The corresponding object pixel offset in region；It is defeated using pixel of the object pixel offset to each distribution subregion of display panel
Numerical value is adjusted out, with the screen intensity controlled the display panel.
The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.
In the above embodiment of the invention, it all emphasizes particularly on different fields to the description of each embodiment, does not have in some embodiment
The part of detailed description, reference can be made to the related descriptions of other embodiments.
In several embodiments provided herein, it should be understood that disclosed technology contents can pass through others
Mode is realized.Wherein, the apparatus embodiments described above are merely exemplary, such as the division of unit, can be one kind
Logical function partition, there may be another division manner in actual implementation, such as multiple units or components can combine or can
To be integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual
Coupling, direct-coupling or communication connection can be through some interfaces, the indirect coupling or communication connection of unit or module,
It can be electrical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
On unit.It can some or all of the units may be selected to achieve the purpose of the solution of this embodiment according to the actual needs.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can store in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially
The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words
It embodies, which is stored in a storage medium, including some instructions are used so that a computer
Equipment (can for personal computer, server or network equipment etc.) execute each embodiment the method for the present invention whole or
Part steps.And storage medium above-mentioned includes: that USB flash disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), mobile hard disk, magnetic or disk etc. be various to can store program code
Medium.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of control method of display panel brightness characterized by comprising
Obtain multiple distribution subregions of display panel and the pixel number of each distribution subregion, wherein each distribution sub-district
Domain is corresponding with initial pixel offset；
Determining pixel compensation coefficient corresponding with each distribution pixel number of subregion；
According to the initial pixel offset and pixel compensation coefficient of the distribution subregion, calculate and each distribution subregion
Corresponding object pixel offset；
It is adjusted using pixel output numerical value of the object pixel offset to each distribution subregion of display panel, with
Control the screen intensity of the display panel.
2. the method according to claim 1, wherein the determining pixel number pair with each distribution subregion
The step of pixel compensation coefficient answered, comprising:
Obtain the picture that each distribution subregion obtained after data type conversion is carried out to the pixel initial value of the display panel
Prime number value；
Obtain the mapping relations between pixel number range and pixel compensation coefficient；
According to the numberical range and the mapping relations where the pixel number, the pixel compensation of each distribution subregion is determined
Coefficient.
3. the method according to claim 1, wherein the multiple distribution subregions for obtaining display panel include:
Obtain the panel coefficient of display panel, wherein the panel coefficient includes at least: panel length and panel width；
According to the panel coefficient, the display panel is divided into multiple distribution subregions of same size.
4. according to the method described in claim 3, it is characterized in that, in the multiple distribution subregions for obtaining display panel and each
It is distributed after the pixel number of subregion, the method also includes:
Determine position of each distribution subregion in the display panel；
According to position of each distribution subregion in the display panel, the initial of each distribution subregion is determined
Pixel compensation value.
5. according to the method described in claim 4, it is characterized in that, according to each distribution subregion in the display panel
In position, determine it is each it is described distribution subregion initial pixel offset include:
According to the distribution subregion in the lengthwise position of the display panel, the first sub- offset is determined；
According to the distribution subregion in the lateral position of the display panel, the second sub- offset is determined；
Add up the described first sub- offset and the second sub- offset, determines the initial pixel offset.
6. the method according to claim 1, wherein using the object pixel offset to the every of display panel
The pixel output numerical value of a distribution subregion is adjusted, and includes: to control the screen intensity of the display panel
After the pixel output numerical value for adjusting each distribution subregion, the pixel output numerical value is converted into output voltage
Value；
The overall brightness of the display panel is controlled by the output voltage values of each distribution subregion.
7. a kind of control device of display panel brightness characterized by comprising
Acquiring unit, for obtaining multiple distribution subregions of display panel and the pixel number of each distribution subregion, wherein
Each distribution subregion is corresponding with initial pixel offset；
Determination unit, for determining pixel compensation coefficient corresponding with each distribution pixel number of subregion；
Computing unit calculates and each for the initial pixel offset and pixel compensation coefficient according to the distribution subregion
The corresponding object pixel offset of the distribution subregion；
Adjustment unit, for exporting number using pixel of the object pixel offset to each distribution subregion of display panel
Value is adjusted, to control the screen intensity of the display panel.
8. device according to claim 7, which is characterized in that the determination unit includes:
First obtains module, every to obtaining after the pixel initial value of display panel progress data type conversion for obtaining
The pixel number of a distribution subregion；
Second obtains module, for obtaining the mapping relations between pixel number range and pixel compensation coefficient；
First determining module, for determining each point according to the numberical range and the mapping relations where the pixel number
The pixel compensation coefficient of cloth subregion.
9. a kind of storage medium, which is characterized in that the storage medium is for storing program, wherein described program is processed
Display panel brightness described in any one of equipment perform claim requirement 1 to 6 device controls the storage medium when executing where
Control method.
10. a kind of processor, which is characterized in that the processor is for running program, wherein right of execution when described program is run
Benefit require any one of 1 to 6 described in display panel brightness control method.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020147195A1 (en) * | 2019-01-17 | 2020-07-23 | 硅谷数模半导体（北京）有限公司 | Method and device for controlling brightness of display panel, storage medium, and processor |
| CN111709949A (en) * | 2020-08-19 | 2020-09-25 | 武汉精测电子集团股份有限公司 | Outdoor display screen detection and repair method, device, equipment and storage medium |
| CN112542137A (en) * | 2020-12-15 | 2021-03-23 | Oppo广东移动通信有限公司 | Brightness compensation method, chip, device, equipment and storage medium |
| CN113314063A (en) * | 2021-05-31 | 2021-08-27 | 北京京东方光电科技有限公司 | Display panel driving method and device and display equipment |
| CN114023282A (en) * | 2021-11-30 | 2022-02-08 | Tcl华星光电技术有限公司 | Display compensation method and display |
| CN114842072A (en) * | 2022-04-24 | 2022-08-02 | 西安诺瓦星云科技股份有限公司 | Image processing method, device and system |
| CN114898706A (en) * | 2022-05-18 | 2022-08-12 | 昆山国显光电有限公司 | Brightness compensation method and device of display screen and computer equipment |
| CN115050325A (en) * | 2022-08-12 | 2022-09-13 | 江苏迈特菲光电技术有限公司 | Temperature control data processing method suitable for OLED display |
| CN115171616A (en) * | 2022-05-18 | 2022-10-11 | 惠科股份有限公司 | Display dimming method and liquid crystal display device |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1573850A (en) * | 2003-06-18 | 2005-02-02 | 株式会社日立制作所 | Display unit |
| CN101488315A (en) * | 2008-01-15 | 2009-07-22 | 三星Sdi株式会社 | Plasma display device and method of driving the same |
| CN102402963A (en) * | 2011-12-02 | 2012-04-04 | 深圳市华星光电技术有限公司 | Driving circuit and driving method of liquid crystal display |
| CN102663976A (en) * | 2010-11-15 | 2012-09-12 | 伊格尼斯创新公司 | System and method for compensation of non-uniformities in light emitting device displays |
| CN103474016A (en) * | 2013-09-11 | 2013-12-25 | 青岛海信电器股份有限公司 | Partition driving processing method, processing device and displayer |
| CN105280143A (en) * | 2014-05-27 | 2016-01-27 | 西安宏祐图像科技有限公司 | Mura eliminating method for tri-gate liquid crystal display panel |
| CN105374336A (en) * | 2015-12-15 | 2016-03-02 | 深圳市华星光电技术有限公司 | Liquid crystal display device and grid signal compensation method |
| CN106205450A (en) * | 2015-05-29 | 2016-12-07 | 乐金显示有限公司 | Data driver, display device and data-driven method |
| CN106652966A (en) * | 2017-03-20 | 2017-05-10 | 北京京东方显示技术有限公司 | Gray-scale signal compensation unit, gray-scale signal compensation method, source driver and display device |
| JP2017092699A (en) * | 2015-11-10 | 2017-05-25 | 株式会社メガチップス | Image processing apparatus and image processing method |
| KR20180062332A (en) * | 2016-11-30 | 2018-06-08 | 엘지디스플레이 주식회사 | Liquid crystal display apparatus and method for driving the same |
-
2019
- 2019-01-17 CN CN201910045253.3A patent/CN109637499B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1573850A (en) * | 2003-06-18 | 2005-02-02 | 株式会社日立制作所 | Display unit |
| CN101488315A (en) * | 2008-01-15 | 2009-07-22 | 三星Sdi株式会社 | Plasma display device and method of driving the same |
| CN102663976A (en) * | 2010-11-15 | 2012-09-12 | 伊格尼斯创新公司 | System and method for compensation of non-uniformities in light emitting device displays |
| CN102402963A (en) * | 2011-12-02 | 2012-04-04 | 深圳市华星光电技术有限公司 | Driving circuit and driving method of liquid crystal display |
| CN103474016A (en) * | 2013-09-11 | 2013-12-25 | 青岛海信电器股份有限公司 | Partition driving processing method, processing device and displayer |
| CN105280143A (en) * | 2014-05-27 | 2016-01-27 | 西安宏祐图像科技有限公司 | Mura eliminating method for tri-gate liquid crystal display panel |
| CN106205450A (en) * | 2015-05-29 | 2016-12-07 | 乐金显示有限公司 | Data driver, display device and data-driven method |
| JP2017092699A (en) * | 2015-11-10 | 2017-05-25 | 株式会社メガチップス | Image processing apparatus and image processing method |
| CN105374336A (en) * | 2015-12-15 | 2016-03-02 | 深圳市华星光电技术有限公司 | Liquid crystal display device and grid signal compensation method |
| KR20180062332A (en) * | 2016-11-30 | 2018-06-08 | 엘지디스플레이 주식회사 | Liquid crystal display apparatus and method for driving the same |
| CN106652966A (en) * | 2017-03-20 | 2017-05-10 | 北京京东方显示技术有限公司 | Gray-scale signal compensation unit, gray-scale signal compensation method, source driver and display device |
Non-Patent Citations (1)
| Title |
|---|
| 苏凯雄，张进，郭里婷，陈素琼，郑明魁: "《卫星直播数字电视及其接收技术》", 30 September 2014, 合肥：中国科学技术大学出版社 * |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11501689B2 (en) | 2019-01-17 | 2022-11-15 | Analogix (China) Semiconductor, Inc. | Control method and control apparatus for brightness of display panel, storage medium and processor |
| WO2020147195A1 (en) * | 2019-01-17 | 2020-07-23 | 硅谷数模半导体（北京）有限公司 | Method and device for controlling brightness of display panel, storage medium, and processor |
| CN111709949A (en) * | 2020-08-19 | 2020-09-25 | 武汉精测电子集团股份有限公司 | Outdoor display screen detection and repair method, device, equipment and storage medium |
| CN112542137A (en) * | 2020-12-15 | 2021-03-23 | Oppo广东移动通信有限公司 | Brightness compensation method, chip, device, equipment and storage medium |
| CN112542137B (en) * | 2020-12-15 | 2022-05-24 | Oppo广东移动通信有限公司 | Brightness compensation method, chip, device, equipment and storage medium |
| CN113314063A (en) * | 2021-05-31 | 2021-08-27 | 北京京东方光电科技有限公司 | Display panel driving method and device and display equipment |
| CN113314063B (en) * | 2021-05-31 | 2023-08-08 | 北京京东方光电科技有限公司 | Display panel driving method and device and display equipment |
| CN114023282A (en) * | 2021-11-30 | 2022-02-08 | Tcl华星光电技术有限公司 | Display compensation method and display |
| US12027131B2 (en) | 2021-11-30 | 2024-07-02 | Tcl China Star Optoelectronics Technology Co., Ltd. | Compensation method for display and display |
| CN114842072A (en) * | 2022-04-24 | 2022-08-02 | 西安诺瓦星云科技股份有限公司 | Image processing method, device and system |
| CN115171616A (en) * | 2022-05-18 | 2022-10-11 | 惠科股份有限公司 | Display dimming method and liquid crystal display device |
| CN114898706B (en) * | 2022-05-18 | 2023-10-31 | 昆山国显光电有限公司 | Display screen brightness compensation method and device and computer equipment |
| CN114898706A (en) * | 2022-05-18 | 2022-08-12 | 昆山国显光电有限公司 | Brightness compensation method and device of display screen and computer equipment |
| CN115050325B (en) * | 2022-08-12 | 2022-10-21 | 江苏迈特菲光电技术有限公司 | Temperature control data processing method suitable for OLED display |
| CN115050325A (en) * | 2022-08-12 | 2022-09-13 | 江苏迈特菲光电技术有限公司 | Temperature control data processing method suitable for OLED display |
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