CN109686336A - Display device and display control method and device thereof - Google Patents
Display device and display control method and device thereof Download PDFInfo
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- CN109686336A CN109686336A CN201910135183.0A CN201910135183A CN109686336A CN 109686336 A CN109686336 A CN 109686336A CN 201910135183 A CN201910135183 A CN 201910135183A CN 109686336 A CN109686336 A CN 109686336A
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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
- G09G3/34—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 by control of light from an independent source
- G09G3/36—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 by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3696—Generation of voltages supplied to electrode drivers
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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
- G09G2320/0242—Compensation of deficiencies in the appearance of colours
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- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
The invention provides a display device and a display control method and device thereof, and belongs to the technical field of display. Wherein the display device includes a display screen, and the display control method includes: acquiring a display picture of the display screen, determining a yellowing area of the display screen according to the acquired display picture, and determining a compensation coefficient of the yellowing area; and adjusting the driving voltage of the sub-pixels of the yellowing area according to the compensation coefficient of the yellowing area, so that the color coordinate of the yellowing area is reduced. The technical scheme of the invention can improve the phenomenon of yellowing of the periphery of the liquid crystal display panel.
Description
Technical field
The present invention relates to field of display technology, a kind of display device and its display control method, device are particularly related to.
Background technique
, there is craftsmanship fluctuation in existing LCD (liquid crystal display) product, lead to that there are sealant in the fabrication process
(sealing) glue applies the risk of excessive height, to make cell gap (box is thick) bigger than normal, the amount of liquid crystal on liquid crystal display panel periphery
It is higher compared with liquid crystal display panel central area, when liquid crystal display panel is shown, there is the phenomenon that periphery jaundice.Currently,
The phenomenon that avoid periphery from turning to be yellow, by controlling the coating height of sealant glue, the homogeneity of cell gap is managed, but by
In the periphery jaundice of liquid crystal display panel there are technological fluctuation, can not be improved well the phenomenon that.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of display device and its display control method, device, Neng Gougai
The phenomenon that periphery jaundice of kind liquid crystal display panel.
In order to solve the above technical problems, the embodiment of the present invention offer technical solution is as follows:
On the one hand, a kind of display control method of display device is provided, the display device includes display screen, the display
Control method includes:
The display picture for obtaining the display screen determines the jaundice area of the display screen according to acquired display picture
Domain, and determine the penalty coefficient in the jaundice region；
The driving voltage that the sub-pixel in the jaundice region is adjusted according to the penalty coefficient in the jaundice region, so that described
The chromaticity coordinates in jaundice region reduces.
Further, the display picture for obtaining the display screen determines described aobvious according to acquired display picture
The jaundice region of display screen includes:
When the display screen shows pure white picture, the display picture of the display screen is grabbed；
The display picture is divided into multiple display areas；
The mean color coordinates for calculating each display area, by the flat of the mean color coordinates in each region and central display area
Equal chromaticity coordinates is compared, and the mean color coordinates in a display area are greater than mean color coordinates and and the center of central display area
When the difference of the mean color coordinates of display area is greater than threshold value, determine the display area for jaundice region.
Further, the threshold value is 0.008.
Further, the display picture is divided into n*m display area, and the mean color coordinates of each display area are (X
(i, j), Y (i, j))；Wherein, i is the integer for being not more than n greater than 0, and j is the integer for being not more than m greater than 0；The determination hair
The penalty coefficient in yellow region includes:
Penalty coefficient a, b, c, the d in the jaundice region are determined using following formula:
X (i, j)=a*Xc+b；
Y (i, j)=c*Yc+d；
Wherein, (Xc, Yc) is the mean color coordinates of center display area.
Further, the sub-pixel of the display screen includes red sub-pixel, green sub-pixels and blue subpixels, described
Include: according to the driving voltage that the penalty coefficient in the jaundice region adjusts the sub-pixel in the jaundice region
Relationship between penalty coefficient and driving voltage changing value according to the pre-stored data, respectively determine red sub-pixel,
The driving voltage changing value of green sub-pixels and blue subpixels reduces the sub- picture of red according to the driving voltage changing value
The driving voltage of the plain and described green sub-pixels, improves the driving voltage of the blue subpixels.
The embodiment of the invention also provides a kind of display control unit of display device, the display device includes display
Screen, the display device include:
Processing module determines described aobvious for obtaining the display picture of the display screen according to acquired display picture
The jaundice region of display screen, and determine the penalty coefficient in the jaundice region；
Compensating module, the driving of the sub-pixel for adjusting the jaundice region according to the penalty coefficient in the jaundice region
Voltage, so that the chromaticity coordinates in the jaundice region reduces.
Further, the processing module is specifically used for when the display screen shows pure white picture, grabs the display
The display picture of screen；The display picture is divided into multiple display areas；The mean color coordinates of each display area are calculated, it will
The mean color coordinates in each region are compared with the mean color coordinates of central display area, and the average color in a display area is sat
When mark is greater than the mean color coordinates of central display area and is greater than threshold value with the difference of the mean color coordinates of central display area, really
The fixed display area is jaundice region.
Further, the display picture is divided into n*m display area, and the mean color coordinates of each display area are (X
(i, j), Y (i, j))；Wherein, i is the integer for being not more than n greater than 0, and j is the integer for being not more than m greater than 0；The processing module tool
Body is used to determine penalty coefficient a, b, c, the d in the jaundice region using following formula:
X (i, j)=a*Xc+b；
Y (i, j)=c*Yc+d；
Wherein, (Xc, Yc) is the mean color coordinates of center display area.
Further, the sub-pixel of the display screen includes red sub-pixel, green sub-pixels and blue subpixels,
The compensating module is specifically used for the relationship between penalty coefficient according to the pre-stored data and driving voltage changing value,
The driving voltage changing value for determining red sub-pixel, green sub-pixels and blue subpixels respectively, becomes according to the driving voltage
Change value reduces the driving voltage of the red sub-pixel and the green sub-pixels, improves the driving electricity of the blue subpixels
Pressure.
The embodiment of the invention also provides a kind of display devices, including display control unit as described above.
The embodiment of the present invention has the advantages that
In above scheme, the display picture of display screen is obtained, the jaundice of display screen is determined according to acquired display picture
Region, and determine the penalty coefficient in jaundice region, according to the drive of the sub-pixel in the penalty coefficient adjustment jaundice region in jaundice region
Dynamic voltage so that the chromaticity coordinates in jaundice region reduces, display screen peripheral turn to be yellow region chromaticity coordinates gradual change type close to central area
Chromaticity coordinates, so as to improve liquid crystal display panel periphery jaundice the phenomenon that.
Detailed description of the invention
Fig. 1 is the flow diagram of display control method of the embodiment of the present invention；
Fig. 2 is the flow diagram of specific embodiment of the invention display control method；
Fig. 3 is the subregion schematic diagram of display screen of the embodiment of the present invention；
Fig. 4 is the variation schematic diagram of driving voltage of the embodiment of the present invention；
Fig. 5 is the structural block diagram of display control unit of the embodiment of the present invention.
Specific embodiment
To keep the embodiment of the present invention technical problems to be solved, technical solution and advantage clearer, below in conjunction with
Drawings and the specific embodiments are described in detail.
The embodiment of the present invention provides a kind of display aiming at the problem that jaundice of the periphery of liquid crystal display panel in the prior art
Device and its display control method, device, can improve liquid crystal display panel periphery jaundice the phenomenon that.
The embodiment of the present invention provides a kind of display control method of display device, and the display device includes display screen,
As shown in Figure 1, the display control method includes:
Step 101: obtaining the display picture of the display screen, the display screen is determined according to acquired display picture
Turn to be yellow region, and the penalty coefficient in the determining jaundice region；
Step 102: the driving voltage of the sub-pixel in the jaundice region is adjusted according to the penalty coefficient in the jaundice region,
So that the chromaticity coordinates in the jaundice region reduces.
In the present embodiment, the display picture of display screen is obtained, the jaundice of display screen is determined according to acquired display picture
Region, and determine the penalty coefficient in jaundice region, according to the drive of the sub-pixel in the penalty coefficient adjustment jaundice region in jaundice region
Dynamic voltage so that the chromaticity coordinates in jaundice region reduces, display screen peripheral turn to be yellow region chromaticity coordinates gradual change type close to central area
Chromaticity coordinates, so as to improve liquid crystal display panel periphery jaundice the phenomenon that.
Further, the display picture for obtaining the display screen determines described aobvious according to acquired display picture
The jaundice region of display screen includes:
When the display screen shows pure white picture, the display picture of the display screen is grabbed；
The display picture is divided into multiple display areas；
The mean color coordinates for calculating each display area, by the flat of the mean color coordinates in each region and central display area
Equal chromaticity coordinates is compared, and the mean color coordinates in a display area are greater than mean color coordinates and and the center of central display area
When the difference of the mean color coordinates of display area is greater than threshold value, determine the display area for jaundice region.
Specifically, the threshold value is 0.008, and certainly, the value of threshold value is not limited to 0.008, can also be according to reality
It needs to choose other values.
Further, the display picture is divided into n*m display area, and the mean color coordinates of each display area are (X
(i, j), Y (i, j))；Wherein, i is the integer for being not more than n greater than 0, and j is the integer for being not more than m greater than 0；The determination hair
The penalty coefficient in yellow region includes:
Penalty coefficient a, b, c, the d in the jaundice region are determined using following formula:
X (i, j)=a*Xc+b；
Y (i, j)=c*Yc+d；
Wherein, (Xc, Yc) is the mean color coordinates of center display area.
Further, the sub-pixel of the display screen includes red sub-pixel, green sub-pixels and blue subpixels, described
Include: according to the driving voltage that the penalty coefficient in the jaundice region adjusts the sub-pixel in the jaundice region
Relationship between penalty coefficient and driving voltage changing value according to the pre-stored data, respectively determine red sub-pixel,
The driving voltage changing value of green sub-pixels and blue subpixels reduces the sub- picture of red according to the driving voltage changing value
The driving voltage of the plain and described green sub-pixels, improves the driving voltage of the blue subpixels.Due to yellow light be by feux rouges and
Green light is composed, and therefore, it is necessary to reduce the driving voltage of red sub-pixel and green sub-pixels in jaundice region, improves blue
The driving voltage of sub-pixel.
With reference to the accompanying drawing and display control method of the invention is described further in specific embodiment, such as schemes
Shown in 2, the present embodiment the following steps are included:
Step 201: the effective display area domain of the display screen of display device being divided into n*m display area, is obtained each
The chromaticity coordinates of display area；
Specifically, the effective display area domain of the display screen of display device can be divided into 17*30 display area, controlled
Display screen shows pure color picture, it is preferable that can control display screen and shows pure white picture, can identify jaundice well in this way
Region.The display picture of display screen is obtained by optical test equipment and data acquisition equipment, and calculates each display area
Chromaticity coordinates, specifically, can using the mean color coordinates of each display area as the chromaticity coordinates of the display area, certainly, and
It is not limited to the chromaticity coordinates using the mean color coordinates of each display area as the display area, it can also be with each display area
Chromaticity coordinates etc. of the median chromaticity coordinates as the display area.
It can be distinguished by the chromaticity coordinates of each display area and define the normal central display area of display and periphery
Jaundice region determine whether the foundation in jaundice region as shown in figure 3, neighboring area is divided into left and right, upper and lower four subregions
Are as follows:
- Xc > 0.008 Xl (i, j) or-Yc > 0.008 Yl (i, j)；I=1~30, j=1~2, as periphery jaundice region；
- Xc > 0.008 Xu (i, j) or-Yc > 0.008 Yu (i, j)；I=1~2, j=1~17, as periphery jaundice region；
- Xc > 0.008 Xd (i, j) or-Yc > 0.008 Yd (i, j)；I=29~30, j=1~17, as periphery jaundice area
Domain；
- Xc > 0.008 Xr (i, j) or-Yc > 0.008 Yr (i, j)；I=1~30, j=16~17, as periphery jaundice area
Domain,
The value of i, j can be according to specific requirements adjusting ranges；
Wherein, Xc, Yc are the average value of the chromaticity coordinates of center display area, generally take the 13*26 display area at center
Centered on display area, (Xl (i, j), Yl (i, j)) be periphery on the left of the i-th row, the chromaticity coordinates of jth column display area, left side
Definition as shown in figure 3, display screen where plane be paper where plane, the IC of display device is in display screen lower end；Similarly,
(Xr (i, j), Yr (i, j)) is the i-th row of periphery right hand display area, and the chromaticity coordinates of jth column, (Xu (i, j), Yu (i, j)) is week
I-th row on the upside of side, the chromaticity coordinates of jth column display area, (Xd (i, j), Yd (i, j)) are the i-th row of peripheral, underside, jth column display
The chromaticity coordinates in region.
Step 202, obtain periphery jaundice region penalty coefficient；
When compensating to jaundice region, in order to guarantee display effect, need to make the color in display screen peripheral jaundice region
For coordinate gradual change type close to the chromaticity coordinates of central area, therefore, it is necessary to obtain the linear penalty coefficient in the jaundice region on periphery.
The chromaticity coordinates of the chromaticity coordinates in periphery jaundice region and central display area is set as linear relationship, on the left of periphery
I-th row for the display area of jth column, is calculated by the following formula to obtain the penalty coefficient in left side jaundice region:
Xl (i, j)=a*Xc+b；
Yl (i, j)=c*Xc+d；
Wherein a, b, c, d are the penalty coefficient in left side jaundice region.And so on, the right side jaundice area on periphery is obtained respectively
The penalty coefficient in domain, upside jaundice region and downside jaundice region.
Step 203: according to the driving voltage of the sub-pixel in the penalty coefficient adjustment jaundice region in jaundice region.
Driving voltage changing value corresponding with penalty coefficient in storage, true according to the penalty coefficient of acquisition in gamma circuit
Fixed corresponding driving voltage changing value, adjusts the defeated of red sub-pixel, blue subpixels and the corresponding data line of green sub-pixels
Voltage out, so that the driving voltage of red sub-pixel and green sub-pixels reduces, the driving voltage of blue subpixels is increased, thus
Adjust the chromaticity coordinates in the jaundice region.
Fig. 4 is the waveform for driving tri- sub-pixels of RGB with Source (data line) in the case of improvement jaundice under normal circumstances
Figure, as shown in figure 4, under normal circumstances, when showing pure white picture, Vsource (R)=Vsource (G)=Vsource (B),
Wherein, Vsource (R) is the driving voltage of red sub-pixel, and Vsource (G) is the driving voltage of green sub-pixels,
Vsource (B) is the driving voltage of blue subpixels.
In jaundice region, red and green cordinant is higher, and blue color coordinates are relatively low, is sat using the color that IC adjusts jaundice region
Mark adjusts the output voltage of data line, Vsource (R), Vsource (G) voltage reduce, and Vsource B voltage increases, from
And the chromaticity coordinates in the jaundice region is adjusted, it is allowed to move closer to the chromaticity coordinates of normal display area, to realize the uniform of display
Property, improve the phenomenon that liquid crystal display panel periphery is turned to be yellow.
Wherein, source after change is driving voltage adjusted, and source normal is the drive before adjustment
Dynamic voltage.
The embodiment of the invention also provides a kind of display control unit of display device, the display device includes display
Screen, as shown in figure 4, the display device includes:
Processing module 21, for obtaining the display picture of the display screen, according to acquired display picture determination
The jaundice region of display screen, and determine the penalty coefficient in the jaundice region；
Compensating module 22, the drive of the sub-pixel for adjusting the jaundice region according to the penalty coefficient in the jaundice region
Dynamic voltage, so that the chromaticity coordinates in the jaundice region reduces.
In the present embodiment, the display picture of display screen is obtained, the jaundice of display screen is determined according to acquired display picture
Region, and determine the penalty coefficient in jaundice region, according to the drive of the sub-pixel in the penalty coefficient adjustment jaundice region in jaundice region
Dynamic voltage so that the chromaticity coordinates in jaundice region reduces, display screen peripheral turn to be yellow region chromaticity coordinates gradual change type close to central area
Chromaticity coordinates, so as to improve liquid crystal display panel periphery jaundice the phenomenon that.
Further, the processing module 21 is specifically used for when the display screen shows pure white picture, grabs described aobvious
The display picture of display screen；The display picture is divided into multiple display areas；The mean color coordinates of each display area are calculated,
The mean color coordinates in each region are compared with the mean color coordinates of central display area, the average color in a display area
When coordinate is greater than the mean color coordinates of central display area and is greater than threshold value with the difference of the mean color coordinates of central display area,
Determine the display area for jaundice region.
Specifically, the threshold value is 0.008, and certainly, the value of threshold value is not limited to 0.008, can also be according to reality
It needs to choose other values.
Further, the display picture is divided into n*m display area, and the mean color coordinates of each display area are (X
(i, j), Y (i, j))；Wherein, i is the integer for being not more than n greater than 0, and j is the integer for being not more than m greater than 0；The processing module 21
Specifically for determining penalty coefficient a, b, c, the d in the jaundice region using following formula:
X (i, j)=a*Xc+b；
Y (i, j)=c*Yc+d；
Wherein, (Xc, Yc) is the mean color coordinates of center display area.
Further, the sub-pixel of the display screen includes red sub-pixel, green sub-pixels and blue subpixels,
The compensating module 22 is specifically used for the pass between penalty coefficient according to the pre-stored data and driving voltage changing value
System determines the driving voltage changing value of red sub-pixel, green sub-pixels and blue subpixels, according to the driving voltage respectively
Changing value reduces the driving voltage of the red sub-pixel and the green sub-pixels, improves the driving electricity of the blue subpixels
Pressure.Since yellow light is composed of feux rouges and green light, therefore, it is necessary to reduce red sub-pixel and the sub- picture of green in jaundice region
The driving voltage of element, improves the driving voltage of blue subpixels.
The embodiment of the invention also provides a kind of display devices, including display control unit as described above.The display
Device can be with are as follows: any products or components having a display function such as TV, Digital Frame, mobile phone, tablet computer, wherein institute
Stating display device further includes flexible circuit board, printed circuit board and backboard.
The embodiments of the present invention also provide a kind of display control apparatus, comprising: memory, processor and is stored in storage
On device and the computer program that can run on a processor, the computer program realize institute as above when being executed by the processor
The step in display control method stated.
The embodiments of the present invention also provide a kind of computer readable storage medium, on the computer readable storage medium
It is stored with computer program, the computer program realizes the step in display control method as described above when being executed by processor
Suddenly.
It is understood that embodiments described herein can with hardware, software, firmware, middleware, microcode or its
Combination is to realize.For hardware realization, processing unit be may be implemented in one or more specific integrated circuit (Application
Specific Integrated Circuits, ASIC), digital signal processor (Digital Signal Processing,
DSP), digital signal processing appts (DSP Device, DSPD), programmable logic device (Programmable Logic
Device, PLD), field programmable gate array (Field-Programmable Gate Array, FPGA), general processor,
In controller, microcontroller, microprocessor, other electronic units for executing herein described function or combinations thereof.
For software implementations, it can be realized herein by executing the module (such as process, function etc.) of function described herein
The technology.Software code is storable in memory and is executed by processor.Memory can in the processor or
It is realized outside processor.
All the embodiments in this specification are described in a progressive manner, the highlights of each of the examples are with
The difference of other embodiments, the same or similar parts between the embodiments can be referred to each other.
It should be understood by those skilled in the art that, the embodiment of the embodiment of the present invention can provide as method, apparatus or calculate
Machine program product.Therefore, the embodiment of the present invention can be used complete hardware embodiment, complete software embodiment or combine software and
The form of the embodiment of hardware aspect.Moreover, the embodiment of the present invention can be used one or more wherein include computer can
With in the computer-usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) of program code
The form of the computer program product of implementation.
The embodiment of the present invention be referring to according to the method for the embodiment of the present invention, user terminal (system) and computer program
The flowchart and/or the block diagram of product describes.It should be understood that flowchart and/or the block diagram can be realized by computer program instructions
In each flow and/or block and flowchart and/or the block diagram in process and/or box combination.It can provide these
Computer program instructions are whole to general purpose computer, special purpose computer, Embedded Processor or other programmable datas processing user
The processor at end is to generate a machine, so that being held by the processor that computer or other programmable datas handle user terminal
Capable instruction generates for realizing in one or more flows of the flowchart and/or one or more blocks of the block diagram
The device of specified function.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable datas processing user terminal
In computer-readable memory operate in a specific manner, so that instruction stored in the computer readable memory generates packet
The manufacture of command device is included, which realizes in one side of one or more flows of the flowchart and/or block diagram
The function of being specified in frame or multiple boxes.
These computer program instructions can also be loaded on computer or other programmable datas processing user terminal, so that
Series of operation steps are executed on computer or other programmable user terminals to generate computer implemented processing, thus
The instruction executed on computer or other programmable user terminals is provided for realizing in one or more flows of the flowchart
And/or in one or more blocks of the block diagram specify function the step of.
Although the preferred embodiment of the embodiment of the present invention has been described, once a person skilled in the art knows bases
This creative concept, then additional changes and modifications can be made to these embodiments.So the following claims are intended to be interpreted as
Including preferred embodiment and fall into all change and modification of range of embodiment of the invention.
It should also be noted that, herein, relational terms such as first and second and the like are used merely to one
Entity or operation are distinguished with another entity or operation, without necessarily requiring or implying between these entities or operation
There are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to contain
Lid non-exclusive inclusion, so that the process, method, article or the user terminal that include a series of elements not only include that
A little elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic element of user terminal.In the absence of more restrictions, the element limited by sentence "including a ...", and
It is not precluded in the process, method including the element, article or user terminal that there is also other identical elements.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of display control method of display device, the display device include display screen, which is characterized in that the display control
Method processed includes:
The display picture for obtaining the display screen determines the jaundice region of the display screen according to acquired display picture, and
Determine the penalty coefficient in the jaundice region；
The driving voltage that the sub-pixel in the jaundice region is adjusted according to the penalty coefficient in the jaundice region, so that the jaundice
The chromaticity coordinates in region reduces.
2. the display control method of display device according to claim 1, which is characterized in that described to obtain the display screen
Display picture, the jaundice region for determining the display screen according to acquired display picture includes:
When the display screen shows pure white picture, the display picture of the display screen is grabbed；
The display picture is divided into multiple display areas；
The mean color coordinates for calculating each display area, by the average color of the mean color coordinates in each region and central display area
Coordinate is compared, and the mean color coordinates in a display area are greater than the mean color coordinates of central display area and show with center
When the difference of the mean color coordinates in region is greater than threshold value, determine the display area for jaundice region.
3. the display control method of display device according to claim 2, which is characterized in that the threshold value is 0.008.
4. the display control method of display device according to claim 1, which is characterized in that the display picture is divided into
N*m display area, the mean color coordinates of each display area are (X (i, j), Y (i, j))；Wherein, i is to be not more than n greater than 0
Integer, j be greater than 0 be not more than m integer；The penalty coefficient in the determination jaundice region includes:
Penalty coefficient a, b, c, the d in the jaundice region are determined using following formula:
X (i, j)=a*Xc+b；
Y (i, j)=c*Yc+d；
Wherein, (Xc, Yc) is the mean color coordinates of center display area.
5. the display control method of display device according to claim 1, which is characterized in that the sub-pixel of the display screen
It is described according to the penalty coefficient adjustment in the jaundice region including red sub-pixel, green sub-pixels and blue subpixels
The driving voltage of sub-pixel in region of turning to be yellow includes:
Relationship between penalty coefficient and driving voltage changing value according to the pre-stored data determines red sub-pixel, green respectively
The driving voltage changing value of sub-pixel and blue subpixels, according to the driving voltage changing value reduce the red sub-pixel and
The driving voltage of the green sub-pixels improves the driving voltage of the blue subpixels.
6. a kind of display control unit of display device, the display device include display screen, which is characterized in that the display dress
It sets and includes:
Processing module determines the display screen according to acquired display picture for obtaining the display picture of the display screen
Jaundice region, and determine it is described jaundice region penalty coefficient；
Compensating module, the driving electricity of the sub-pixel for adjusting the jaundice region according to the penalty coefficient in the jaundice region
Pressure, so that the chromaticity coordinates in the jaundice region reduces.
7. the display control unit of display device according to claim 6, which is characterized in that
The processing module is specifically used for when the display screen shows pure white picture, grabs the display picture of the display screen；
The display picture is divided into multiple display areas；The mean color coordinates for calculating each display area, by the flat of each region
Equal chromaticity coordinates is compared with the mean color coordinates of central display area, and the mean color coordinates in a display area are aobvious greater than center
When showing the mean color coordinates in region and being greater than threshold value with the difference of the mean color coordinates of central display area, the display area is determined
For region of turning to be yellow.
8. the display control unit of display device according to claim 6, which is characterized in that the display picture is divided into
N*m display area, the mean color coordinates of each display area are (X (i, j), Y (i, j))；Wherein, i is to be not more than n greater than 0
Integer, j be greater than 0 be not more than m integer；The processing module is specifically used for determining the jaundice region using following formula
Penalty coefficient a, b, c, d:
X (i, j)=a*Xc+b；
Y (i, j)=c*Yc+d；
Wherein, (Xc, Yc) is the mean color coordinates of center display area.
9. the display control unit of display device according to claim 6, which is characterized in that the sub-pixel of the display screen
Including red sub-pixel, green sub-pixels and blue subpixels,
The compensating module is specifically used for the relationship between penalty coefficient according to the pre-stored data and driving voltage changing value, respectively
The driving voltage changing value for determining red sub-pixel, green sub-pixels and blue subpixels, according to the driving voltage changing value
The driving voltage for reducing the red sub-pixel and the green sub-pixels improves the driving voltage of the blue subpixels.
10. a kind of display device, which is characterized in that including the display control unit as described in any one of claim 6-9.
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