CN109658877A - A kind of display device and its driving method and electronic equipment - Google Patents
A kind of display device and its driving method and electronic equipment Download PDFInfo
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- CN109658877A CN109658877A CN201910152986.7A CN201910152986A CN109658877A CN 109658877 A CN109658877 A CN 109658877A CN 201910152986 A CN201910152986 A CN 201910152986A CN 109658877 A CN109658877 A CN 109658877A
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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
- G09G3/3406—Control of illumination source
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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
- G09G3/3406—Control of illumination source
- G09G3/3413—Details of control of colour illumination sources
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Abstract
The embodiment of the invention discloses a kind of display device and its driving method and electronic equipment, the driving method of the display device includes: the picture to be shown according to display panel, determine the dark viewing area and bright viewing area in display function area, dark viewing area includes black viewing area and boundary viewing area, and boundary viewing area is between black viewing area and bright viewing area；When display panel shows picture to be shown, the pixel gray level value for controlling boundary viewing area is greater than 0 and is less than the pixel gray level average value of bright viewing area adjacent thereto, it also adjusts the backlight illumination La of the corresponding backlight subarea in boundary viewing area and 0 < La < Lb, Lb is the backlight illumination of backlight subarea corresponding with the adjacent bright viewing area in the boundary viewing area.The embodiment of the present invention, luminance transition of the boundary viewing area as bright viewing area and black viewing area, so that it is gradually dimmed between bright dark viewing area, and then show that the display transition of picture is soft, reach good visual effect, not will increase dramatically display power consumption also.
Description
Technical field
The present embodiments relate to display technology more particularly to a kind of display devices and its driving method and electronics to set
It is standby.
Background technique
High dynamic range images (High-Dynamic Range, abbreviation HDR), compared to common image, can provide more
More dynamic ranges and image detail, according to the low dynamic range echograms of different time for exposure (Low-Dynamic Range,
Abbreviation LDR), final HDR image is synthesized using the LDR image of corresponding best details of each time for exposure, it can be better
Reflect the visual effect in true environment.HDR, which is shown, has higher color depth, wider array of dynamic range and stronger color table
Existing power, specific HDR display is using the display panel of high NTSC color gamut and the backlight mould of local dimming (local dimming)
Group realizes the high colour gamut and high comparison of picture.
The existing algorithm of HDR is in the more picture of display background black region, the display transition in clear zone and dark space in picture
It is lofty, influence display effect.
Summary of the invention
The embodiment of the present invention provides a kind of display device and its driving method and electronic equipment, to solve existing HDR figure
Bright show slinkingly of picture shows the lofty problem for leading to display effect difference of transition.
The embodiment of the invention provides a kind of driving method of display device, the display device includes backlight module and shows
Show that panel, the backlight module include multiple backlight subareas, the display panel includes display function area, the display function area
Multiple viewing areas are divided into, the multiple viewing area and the multiple backlight subarea respectively correspond setting, the driving method packet
It includes:
According to the picture to be shown of the display panel, the dark viewing area and bright viewing area in the display function area are determined,
The dark viewing area includes black viewing area and boundary viewing area, and the boundary viewing area is located at the black viewing area and described bright aobvious
Show between area；
When the display panel shows the picture to be shown, the pixel gray level value for controlling the boundary viewing area is greater than
0 and it is less than the pixel gray level average value of the bright viewing area adjacent thereto, it is corresponding described also adjusts the boundary viewing area
The backlight illumination La and 0 < La < Lb of backlight subarea, wherein Lb is corresponding with the adjacent bright viewing area in the boundary viewing area
The backlight illumination of the backlight subarea.
Based on the same inventive concept, the embodiment of the invention also provides a kind of display device, the display device includes:
Backlight module and display panel, the backlight module include multiple backlight subareas, and the display panel includes display
Functional areas, the display function zoning are divided into multiple viewing areas, and the multiple viewing area and the multiple backlight subarea are right respectively
It should be arranged；
And drive module, the drive module is electrically connected with the backlight module and the display panel respectively, described
Drive module be used to be determined according to the picture to be shown of the display panel display function area dark viewing area and bright display
Area, the dark viewing area include black viewing area and boundary viewing area, and the boundary viewing area is located at the black viewing area and described
Between bright viewing area, when the display panel shows the picture to be shown, the pixel gray level of the boundary viewing area is controlled
Value is greater than 0 and is less than the pixel gray level average value of the bright viewing area adjacent thereto, and it is corresponding also to adjust the boundary viewing area
The backlight subarea backlight illumination La and 0 < La < Lb, wherein Lb be the bright viewing area adjacent with the boundary viewing area
The backlight illumination of the corresponding backlight subarea.
Based on the same inventive concept, the embodiment of the invention also provides a kind of electronic equipment, including show as described above
Device.
In the embodiment of the present invention, according to the picture to be shown of display panel, the dark viewing area in display function area and bright is determined
Viewing area, dark viewing area include black viewing area and boundary viewing area；When display panel shows picture to be shown, control boundary is aobvious
Show that the pixel gray level value in area is greater than 0 and is less than the pixel gray level average value of bright viewing area adjacent thereto, also adjusting boundary is shown
The backlight illumination La and 0 < La < Lb of the corresponding backlight subarea in area.In the embodiment of the present invention, in the display stage, drive module control
The pixel of boundary viewing area opens light-permeable, can so reduce boundary viewing area penetrance and bright viewing area adjacent thereto
Penetrance difference；Meanwhile drive module also adjusts the backlight illumination La and 0 < La < Lb of the corresponding backlight subarea in boundary viewing area,
Then the backlight in the corresponding backlight subarea in display stage boundary viewing area may pass through boundary viewing area and be shown, improve boundary
The display brightness of the display brightness of viewing area, the display brightness and bright viewing area adjacent thereto that reduce boundary viewing area is poor
It is different.Therefore, luminance transition of the boundary viewing area as bright viewing area and black viewing area, so that gradually becoming between bright dark viewing area
Secretly, it and then shows that the display transition of picture is soft, has reached good visual effect, not will increase dramatically display power consumption also.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to do one simply to introduce, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of schematic diagram of display device provided in an embodiment of the present invention；
Fig. 2 is the schematic diagram of the backlight module of display device shown in Fig. 1；
Fig. 3 is the schematic diagram of the display panel of display device shown in Fig. 1；
Fig. 4 is the flow chart of the driving method of display device shown in Fig. 1；
Fig. 5 is the schematic diagram of the display panel of display device shown in Fig. 1.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, hereinafter with reference to attached in the embodiment of the present invention
Figure, clearly and completely describes technical solution of the present invention by embodiment, it is clear that described embodiment is the present invention one
Section Example, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
The embodiment of the present invention provides a kind of driving method of display device, which is chosen as any one and is integrated with
The display device of backlight module, such as it is integrated with the liquid crystal display device of backlight module, it is particularly suitable for aobvious based on HDR technology
Showing device is also chosen as being integrated with the other types display device of backlight module in other embodiments.It is integrated in display herein
The driving method of the display device can be performed in drive module in device, and the drive module is by the way of software and/or hardware
It realizes and configures in the display device.
With reference to shown in FIG. 1 to FIG. 3, display device provided in this embodiment includes display panel 10 and backlight module 20, back
Optical mode group 20 includes multiple backlight subareas 21, and display panel 10 includes display function area 10a, and display function area 10a is divided into more
A viewing area 11, multiple viewing areas 11 respectively correspond setting with multiple backlight subareas 21.In the present embodiment, the back of backlight module 20
Light carries out zonal control, and the backlight illumination of each backlight subarea 21 can be independently controlled, corresponding each backlight subarea 21
The backlight of independent control can be provided to corresponding viewing area 11, be achieved in the regional luminance adjustment local of display device
dimming。
It should be noted that FIG. 1 to FIG. 3 only gives the simple signal of display panel and backlight module and relative position is closed
System, display panel are the display panel that any one uses backlight, and backlight module is that any one can be used for mentioning for display panel
For the backlight module of backlight, the correlative positional relation of display panel and backlight module as shown in the figure is also only a kind of example, real
In the production of border, related practitioner can rationally design display panel and backlight module according to needed for product, not have in the present invention
Body illustrates the specific structure of display panel and backlight module.
Refering to what is shown in Fig. 4, being a kind of flow chart of the driving method of display device provided in an embodiment of the present invention, the driving
Method includes:
Step 110, the picture to be shown according to display panel determine the dark viewing area and bright viewing area in display function area,
Dark viewing area includes black viewing area and boundary viewing area, and boundary viewing area is between black viewing area and bright viewing area.
In the present embodiment, drive module 30 is electrically connected with display panel 10 and backlight module 20 respectively, and drive module 30 is controlled
Display panel 10 processed shows picture, and also control backlight module 20 provides backlight to display panel 10, specific, drive module 30
According to the backlight illumination of each backlight subarea 21 in picture independent control backlight module 20 to be shown to each in display panel 10
Viewing area 11 provides corresponding backlight.
In the present embodiment, after drive module 30 receives the picture to be shown of display panel 10, it can exist to picture to be shown
The situation to be shown of display function area 10a carries out preparatory analysis processing, specifically, the drive module 30 with reference to shown in Fig. 5 will be shown
Each viewing area 11 for showing the dark picture of picture to be shown is predefined in the 10a of functional areas is determined as dark viewing area 111,
Drive module 30 will predefine in display function area 10a is used to show that each viewing area 11 of the bright picture of picture to be shown to be true
It is set to bright viewing area 11a.Wherein, the bright picture of picture to be shown determines corresponding bright viewing area 11a extremely in the stage to be shown
The grayscale of a few sub-pixel is not 0, and the dark picture of picture to be shown determines corresponding dark viewing area 111 in the stage to be shown
The grayscale of each sub-pixel should be 0.
In the present embodiment, drive module 30 carries out further division to dark viewing area 111 also according to picture to be shown,
In, dark viewing area 111 includes that black viewing area 11c and boundary viewing area 11b, boundary viewing area 11b are located at black viewing area 11c and bright
Between the 11a of viewing area.Obviously, boundary viewing area 11b is located at the periphery of bright viewing area 11a and is disposed adjacent.It should be noted that
Display function area 10a includes multiple bright viewing area 11a, and each the dark viewing area 111 adjacent with bright viewing area 11a is that boundary is aobvious
Show that area 11b, the dark picture of picture to be shown determine the ash of each sub-pixel of corresponding boundary viewing area 11b in the stage to be shown
Rank should be 0.
It will be understood by those skilled in the art that the predetermined bright viewing area of drive module, boundary viewing area and black display
Area is parameter to be shown associated with picture to be shown, when picture to be shown changes, bright viewing area, boundary viewing area and
Corresponding change can also occur for the position of black viewing area and quantity, not illustrate herein.
Optionally, determine that the black viewing area 11c, bright viewing area 11a and boundary viewing area 11b of display function area 10a include:
According to the picture to be shown of display panel 10, each viewing area 11 by the grayscale value of at least one pixel greater than 0 is determined as
Each viewing area 11 that pixel gray level value is 0 is determined as dark viewing area 111 by bright viewing area 11a；It will be with bright viewing area
11a adjacent dark viewing area 111 is determined as boundary viewing area 11b, will be far from multiple dark viewing areas 111 of bright viewing area 11a really
It is set to black viewing area 11c.In the present embodiment, black viewing area, bright viewing area and boundary viewing area are drive module according to be shown
The partitioning scenario that picture determines in display function area in advance can carry out subsequent picture according to the subregion and show.Pixel includes
The different sub-pixel of multiple colors, each sub-pixel have grayscale value, and pixel gray level value is the ash of each sub-pixel in pixel
The grayscale coordinate value that rank value is constituted.Here, the grayscale value of pixel is greater than 0 for the grayscale value of at least one sub-pixel in pixel
Greater than 0, the grayscale value of pixel is that 0 grayscale value for being each sub-pixel in pixel is 0.
Optionally, display function area 10a is divided into multiple viewing areas 11 of array arrangement；It will be adjacent with bright viewing area 11a
Dark viewing area 111 be determined as the specific implementation procedure of boundary viewing area 11b are as follows: will be located at bright viewing area 11a with a line and
Adjacent dark viewing area 111 is determined as the corresponding boundary viewing area 11b of the bright viewing area 11a；And/or it will be with bright viewing area 11a
Positioned at same row and adjacent dark viewing area 111 is determined as the corresponding boundary viewing area 11b of the bright viewing area 11a.The present embodiment
In, display function area 10a is divided into multiple viewing areas 11 of array arrangement, then is located at bright viewing area 11a with a line and adjacent
Dark viewing area 111 and/or be located at same row with bright viewing area 11a and adjacent dark viewing area 111 is chosen as the bright display
Boundary viewing area 11b corresponding to area 11a, the pixel gray level value of each boundary viewing area 11b can be according to adjacent thereto bright
The pixel gray level value of viewing area 11a sorts.It should be noted that if the bright viewing area 11a adjacent with boundary viewing area 11b is two
It is a, then in the pixel gray level average value for the bright viewing area 11a that the pixel gray level value of boundary viewing area 11b can be adjacent thereto compared with
A low pixel gray level average value is adjusted as standard, avoids the pixel opening degree of boundary viewing area 11b from being greater than and is expected
The bright viewing area 11a of any one adjacent.
Step 120, when display panel shows picture to be shown, control boundary viewing area pixel gray level value be greater than 0 and
Backlight less than the pixel gray level average value of bright viewing area adjacent thereto, the also corresponding backlight subarea in adjusting boundary viewing area is bright
Spend La and 0 < La < Lb, wherein Lb is the backlight illumination of backlight subarea corresponding with the adjacent bright viewing area in the boundary viewing area.
In the present embodiment, drive module 30 controls the display panel the backlight illumination of 10 displays and backlight module 20.Drive mould
When the control of block 30 display function area 10a shows picture to be shown, the pixel gray level value of control boundary viewing area 11b is greater than 0 and small
In the pixel gray level average value of bright viewing area 11a adjacent thereto.In the stage to be shown, the pixel gray level of boundary viewing area 11b
Value should be 0.In the display stage, the pixel gray level value that drive module 30 controls boundary viewing area 11b is not 0, then boundary is shown
The pixel of area 11b opens light-permeable, can so reduce boundary viewing area 11b penetrance and bright viewing area 11a adjacent thereto
Penetrance difference；In the display stage, the pixel gray level value that drive module 30 controls boundary viewing area 11b is less than adjacent thereto
The pixel gray level average value of bright viewing area 11a, then the penetrance of boundary viewing area 11b is lower than bright viewing area 11a, still falls within and shows slinkingly
Show area.
In the present embodiment, drive module 30 also adjusts the backlight illumination La of the corresponding backlight subarea 21 boundary viewing area 11b
And 0 < La < Lb, wherein Lb is that the backlight of backlight subarea 21 corresponding with the adjacent bright viewing area 11a of boundary viewing area 11b is bright
Degree.The backlight illumination La of the corresponding backlight subarea 21 boundary viewing area 11b is not 0, and the pixel unlatching of boundary viewing area 11b can be saturating
Light then shows that the backlight of the corresponding backlight subarea 21 stage boundary viewing area 11b may pass through boundary viewing area 11b and be shown,
Improve the display brightness of boundary viewing area 11b.Backlight illumination La < Lb of the corresponding backlight subarea 21 boundary viewing area 11b, then
It avoids the display brightness of boundary viewing area 11b from being higher than bright viewing area 11a, still falls within dark viewing area.
In the prior art, in order to realize it is bright it is dark between display transition it is soft, pass through and improve the corresponding back in boundary viewing area
The backlight illumination of light subregion reaches required boundary viewing area display brightness, realizes the penetrance of boundary viewing area greater than black
Viewing area and it is less than bright viewing area, but the power consumption of backlight subarea corresponding to the viewing area of boundary is higher.In the present embodiment, pass through tune
The pixel gray level value of section boundary viewing area is larger than 0 and is less than bright viewing area pixel gray level average value, so that boundary viewing area
Pixel open light-permeable, then under identical boundary viewing area display brightness demand, boundary viewing area needed for the present embodiment
The backlight illumination of corresponding backlight subarea is lower than the backlight illumination of the prior art, so in the case where reaching identical display brightness
The power consumption of backlight module is saved, on the other hand, it is aobvious well below boundary that the pixel of boundary viewing area opens consumed power consumption
Show the power consumption that the corresponding backlight subarea in area is saved, therefore still reduces display power consumption on the whole.
In the present embodiment, according to the picture to be shown of display panel, determine display function area dark viewing area and bright display
Area, dark viewing area include black viewing area and boundary viewing area；When display panel shows picture to be shown, boundary viewing area is controlled
Pixel gray level value be greater than 0 and be less than bright viewing area adjacent thereto pixel gray level average value, also adjusting boundary viewing area pair
The backlight illumination La and 0 < La < Lb for the backlight subarea answered.In the present embodiment, in the display stage, drive module control boundary is shown
The pixel in area opens light-permeable, and the penetrance of the penetrance and bright viewing area adjacent thereto that can so reduce boundary viewing area is poor
It is different；Meanwhile drive module also adjusts the backlight illumination La and 0 < La < Lb of the corresponding backlight subarea in boundary viewing area, then is showing
The backlight of the corresponding backlight subarea in stage boundary viewing area may pass through boundary viewing area and be shown, improve boundary viewing area
Display brightness reduces the display brightness of boundary viewing area and the display brightness difference of bright viewing area adjacent thereto.Therefore, side
Luminance transition of the boundary viewing area as bright viewing area and black viewing area, so that it is gradually dimmed between bright dark viewing area, and then show
The display transition of picture is soft, has reached good visual effect, not will increase dramatically display power consumption also.
Illustratively, based on the above technical solution, it is optional control boundary viewing area pixel gray level value be greater than 0 and
Pixel gray level average value less than bright viewing area adjacent thereto includes: every in the acquisition bright viewing area adjacent with boundary viewing area
The grayscale value of a pixel calculates the pixel gray level average value of the bright viewing area；By the boundary viewing area adjacent with the bright viewing area
Pixel gray level value be adjusted to be greater than 0 and be less than the bright viewing area pixel gray level average value.
In the present embodiment, pixel includes multiple sub-pixels, by taking pixel includes tri- sub-pixels of R, G, B as an example, the ash of pixel
Rank value includes the grayscale value grayR of its red sub-pixel R, the ash of the grayscale value grayG and blue subpixels B of green sub-pixels G
Rank value grayB, the i.e. grayscale value of the pixel are characterized as (grayR, grayG, grayB).Such as pixel (25,0,236), i.e., should
In pixel grayR be 25, grayG 0, grayB 236.
In the present embodiment, after determining the bright viewing area adjacent with boundary viewing area, drive module obtains the bright viewing area
In each pixel grayscale value, then calculate pixel gray level average value in the bright viewing area.Specifically, to obtain this bright for drive module
Then the grayscale value of each sub-pixel in viewing area sums to the grayscale value of the red sub-pixel of all pixels in the bright viewing area
It is averaged again to obtain the grey scale average value grayR_ave of red sub-pixel in the bright viewing area, and so on, also it is somebody's turn to do
The grey scale average value grayG_ave of the bright viewing area Green sub-pixel and grey scale average value grayB_ave of blue subpixels.Then
The pixel gray level average value of bright viewing area is (grayR_ave, grayG_ave, grayB_ave).
In the present embodiment, be calculated bright viewing area pixel gray level average value be (grayR_ave, grayG_ave,
GrayB_ave), then the pixel gray level value of the boundary viewing area adjacent with the bright viewing area is adjusted to greater than 0 and bright less than this
The pixel gray level average value of viewing area.Specifically, drive module is by the red sub-pixel of each pixel of the boundary viewing area
Grayscale value is adjusted to be greater than 0 and is less than grayR_ave, and drive module is by the green sub-pixels of each pixel of the boundary viewing area
Grayscale value be adjusted to be greater than 0 and be less than grayG_ave, drive module is by the sub- picture of blue of each pixel of the boundary viewing area
The grayscale value of element is adjusted to be greater than 0 and is less than grayG_ave.It should be noted that in order to avoid in the viewing area of boundary it is bright it is dark not
Uniformly, each pixel has same gray level value in optional boundary viewing area.
The pixel gray level value of optional control boundary viewing area is greater than 0 and is less than the pixel gray level of bright viewing area adjacent thereto
The specific implementation procedure of average value are as follows: when display panel shows picture to be shown, by the pixel gray level value tune of boundary viewing area
Section is G/i, wherein i is greater than the pixel gray level average value that 1, G is the bright viewing area adjacent with the boundary viewing area.As described above,
The pixel gray level average value of bright viewing area is (grayR_ave, grayG_ave, grayB_ave), in the display stage, drive module
The pixel gray level value of boundary viewing area is adjusted to G/i, specifically, drive module is by the red of each pixel of the boundary viewing area
The grayscale value of sub-pixels is adjusted to grayR_ave/i, and drive module is by the sub- picture of green of each pixel of the boundary viewing area
The grayscale value of element is adjusted to grayG_ave/i, and drive module is by the ash of the blue subpixels of each pixel of the boundary viewing area
Rank value is adjusted to grayB_ave/i.
Illustratively, based on the above technical solution, optional boundary viewing area includes along first direction arranged adjacent
Multiple sub- boundary viewing areas；The pixel gray level value for controlling boundary viewing area is greater than 0 and is less than bright viewing area adjacent thereto
The specific implementation procedure of pixel gray level average value are as follows:, will be separate in the viewing area of boundary when display panel shows picture to be shown
The pixel gray level value of the sub- boundary viewing area of bright viewing area is adjusted to G/j, by the sub- side in the viewing area of boundary close to bright viewing area
The pixel gray level value of boundary viewing area is adjusted to G/k, wherein it is adjacent with the boundary viewing area that j and k, which is all larger than 1 and j greater than k, G,
Bright viewing area pixel gray level average value.
Optional first direction is the row arragement direction or column arragement direction of viewing area in display function area, as shown in Figure 5 originally
Optional first direction is the row arragement direction of viewing area in display function area in embodiment.Boundary viewing area 11b includes along first
Multiple sub- boundary viewing areas of direction arranged adjacent, such as boundary viewing area 11b include 4 sons successively arranged along first direction
Boundary viewing area A1~A4, neutron boundary viewing area A1 are disposed adjacent with bright viewing area A, and sub- boundary viewing area A4 is far from bright aobvious
Show area A.
In the present embodiment, sub- boundary viewing area A1 is disposed adjacent with bright viewing area A and far from black viewing area B, sub- boundary
Viewing area A4 is disposed adjacent far from bright viewing area A and with black viewing area B, optional sub- boundary viewing area A1~sub- boundary viewing area A4
Pixel gray level value be gradually reduced, then be based on identical backlight illumination, the display brightness of sub- boundary viewing area A1 is greater than sub- boundary
The display brightness of viewing area A4 improves display effect so that the transition of the display brightness of bright viewing area A to black viewing area B is soft
Fruit.
Specifically, the pixel gray level value of the sub- boundary viewing area in the viewing area of boundary far from bright viewing area is adjusted to G/j,
The pixel gray level value of sub- boundary viewing area in the viewing area of boundary close to bright viewing area is adjusted to G/k.It is optional in the present embodiment
4 boundaries viewing area is set in brilliant black transition portion, the problem of transition unevenness can be prevented.If 4 boundaries viewing area
Pixel gray level value is 0, then needs to successively decrease by the backlight illumination of corresponding backlight subarea to realize bright dark transition, backlight subarea
Power consumption it is larger.In the present embodiment, by promoting the panel luminance of boundary viewing area, even transition is used to brilliant black area, it is optional
The panel luminance that sub- boundary viewing area is set by gradient reduces power consumption while realizing even transition；Such as sub- boundary is shown
The pixel gray level value of area A1 is G/6, and the pixel gray level value of sub- boundary viewing area A2 is G/8, the pixel ash of sub- boundary viewing area A3
Rank value is G/10, and the pixel gray level value of sub- boundary viewing area A4 is G/12.It will be understood by those skilled in the art that making bright show
On the basis of the display brightness transition for showing area to black viewing area is soft, related practitioner can be according to reasonable set needed for showing
The pixel gray level value of boundary viewing area.
On the other hand, the panel luminance of boundary viewing area is improved, then the constant feelings of the display brightness in boundary viewing area
Under condition, the backlight illumination of the corresponding backlight module in boundary viewing area can be turned down moderately, can so reduce the power consumption of backlight module.This
It is bright according to the display of actual boundary viewing area that field technical staff is appreciated that the reduction of the backlight illumination of backlight subarea is needed
Degree determines that drive module promotes the panel luminance of boundary display and reduction according to the display brightness of required boundary viewing area
The backlight illumination of its corresponding backlight subarea.
For example, in the prior art, making boundary viewing area by promoting brightness to the corresponding backlight subarea of boundary display
Reach required display brightness.In the case that in boundary viewing area, display brightness is constant, such as fruit boundary viewing area in the present embodiment
The pixel gray level value of A1 is adjusted to G/6, then the backlight illumination of its corresponding backlight subarea can be adjusted to down the 1/6 of former brightness；Sub- side
The pixel gray level value of boundary viewing area A2 is adjusted to G/8, then the backlight illumination of its corresponding backlight subarea can be adjusted to down former brightness
1/8；The pixel gray level value of sub- boundary viewing area A3 is adjusted to G/10, then the backlight illumination of its corresponding backlight subarea can be adjusted to down
The 1/10 of former brightness；The pixel gray level value of sub- boundary viewing area A4 is adjusted to G/12, then the backlight of its corresponding backlight subarea is bright
Degree can be adjusted to down the 1/12 of former brightness.
Based on the same inventive concept, the embodiment of the invention also provides a kind of display devices, should with reference to shown in FIG. 1 to FIG. 3
Display device includes: backlight module 20 and display panel 10, and backlight module 20 includes multiple backlight subareas 21, and display panel 10 wraps
Display function area 10a is included, display function area 10a is divided into multiple viewing areas 11, multiple viewing areas 11 and multiple backlight subareas 21
Respectively correspond setting；And drive module 30, drive module 30 are electrically connected with backlight module 20 and display panel 10 respectively, driving
Module 30 is used for the picture to be shown according to display panel 10, determines the dark viewing area 111 and bright viewing area of display function area 10a
11a, dark viewing area 111 include black viewing area 11c and boundary viewing area 11b, boundary viewing area 11b be located at black viewing area 11c with
Between bright viewing area 11a, when display panel 10 shows picture to be shown, the pixel gray level value for controlling boundary viewing area 11b is big
In 0 and being less than the pixel gray level average value of bright viewing area 11a adjacent thereto, the also corresponding backlight of adjusting boundary viewing area 11b
The backlight illumination La and 0 < La < Lb of subregion 21, wherein Lb is corresponding with the adjacent bright viewing area 11a of boundary viewing area 11b
The backlight illumination of backlight subarea 21.
The present embodiment does luminance transition using boundary viewing area between brilliant black viewing area, by being promoted in dark viewing area
The pixel gray level value of the boundary viewing area adjacent with bright viewing area, so that (i.e. panel is bright for the pixel opening degree of boundary viewing area
Degree) it is promoted, and then realize the even transition of bright dark viewing area.On the other hand, panel of the display brightness of viewing area by viewing area
The influence of the backlight illumination of brightness and backlight subarea, the panel luminance of viewing area is higher, and the display brightness of viewing area is higher, backlight
The backlight illumination of subregion is higher, and the display brightness of viewing area is higher.Obviously, the display brightness demand of identical boundary viewing area
Under, it can be real by way of promoting the panel luminance of boundary viewing area and the backlight illumination of reduction backlight subarea on the original basis
The display brightness of existing boundary viewing area, can so reduce backlight subarea power consumption.
It should be noted that drive module is to the panel luminance of boundary viewing area backlight corresponding with its in the display stage
The backlight illumination of subregion is adjusted so that the backlight illumination of the panel luminance of boundary viewing area and its corresponding backlight subarea with
Stage to be shown is different.And for example bright viewing area in other display areas and black viewing area, panel luminance backlight subarea corresponding with its
Backlight illumination be consistent in display stage and stage to be shown.
Based on the same inventive concept, the embodiment of the present invention also provides a kind of electronic equipment, which includes institute as above
The display device stated.The electronic equipment is chosen as LCD TV, intelligent terminal etc..
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts, be combined with each other and substitutes without departing from protection scope of the present invention.Therefore, although by above embodiments to this
Invention is described in further detail, but the present invention is not limited to the above embodiments only, is not departing from present inventive concept
In the case of, it can also include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (8)
1. a kind of driving method of display device, which is characterized in that the display device includes backlight module and display panel, institute
Stating backlight module includes multiple backlight subareas, and the display panel includes display function area, and the display function zoning is divided into more
A viewing area, the multiple viewing area and the multiple backlight subarea respectively correspond setting, and the driving method includes:
According to the picture to be shown of the display panel, the dark viewing area and bright viewing area in the display function area are determined, it is described
Dark viewing area includes black viewing area and boundary viewing area, and the boundary viewing area is located at the black viewing area and the bright viewing area
Between；
When the display panel shows the picture to be shown, control the boundary viewing area pixel gray level value be greater than 0 and
Less than the pixel gray level average value of the bright viewing area adjacent thereto, the corresponding backlight in the boundary viewing area is also adjusted
The backlight illumination La and 0 < La < Lb of subregion, wherein Lb is corresponding with the adjacent bright viewing area in the boundary viewing area described
The backlight illumination of backlight subarea.
2. driving method according to claim 1, which is characterized in that determine the black viewing area, bright in the display function area
Viewing area and boundary viewing area include:
It is according to the picture to be shown of the display panel, the grayscale value of at least one pixel is true greater than 0 each viewing area
It is set to the bright viewing area, each viewing area that pixel gray level value is 0 is determined as the dark viewing area；
The dark viewing area adjacent with the bright viewing area is determined as the boundary viewing area, will be far from the more of the bright viewing area
A dark viewing area is determined as the black viewing area.
3. driving method according to claim 2, which is characterized in that the display function zoning is divided into the more of array arrangement
A viewing area；
The dark viewing area adjacent with the bright viewing area is determined as to the specific implementation procedure of the boundary viewing area are as follows:
It will be located at the bright viewing area with a line and adjacent dark viewing area is determined as the corresponding boundary in the bright viewing area
Viewing area；And/or same row will be located at the bright viewing area and to be determined as the bright viewing area corresponding for adjacent dark viewing area
The boundary viewing area.
4. driving method according to claim 1, which is characterized in that the pixel gray level value for controlling the boundary viewing area is big
In 0 and be less than the bright viewing area adjacent thereto pixel gray level average value include:
The grayscale value for obtaining each pixel in the bright viewing area adjacent with the boundary viewing area, calculates the bright viewing area
Pixel gray level average value；
It is adjusted to the pixel gray level value of the boundary viewing area adjacent with the bright viewing area to be greater than 0 and is less than the bright viewing area
Pixel gray level average value.
5. driving method according to claim 1, which is characterized in that the pixel gray level value for controlling the boundary viewing area is big
In 0 and be less than the bright viewing area adjacent thereto pixel gray level average value specific implementation procedure are as follows:
When the display panel shows the picture to be shown, the pixel gray level value of the boundary viewing area is adjusted to G/i,
Wherein, i is greater than the pixel gray level average value that 1, G is the bright viewing area adjacent with the boundary viewing area.
6. driving method according to claim 1, which is characterized in that the boundary viewing area includes adjacent along first direction
Multiple sub- boundary viewing areas of arrangement；The pixel gray level value for controlling the boundary viewing area is greater than 0 and is less than institute adjacent thereto
State the specific implementation procedure of the pixel gray level average value of bright viewing area are as follows:
When the display panel shows the picture to be shown, by the son of the bright viewing area separate in the boundary viewing area
The pixel gray level value of boundary viewing area is adjusted to G/j, and the sub- boundary in the boundary viewing area close to the bright viewing area is shown
Show that the pixel gray level value in area is adjusted to G/k, wherein j and k is all larger than 1 and j greater than k, and G is the institute adjacent with the boundary viewing area
State the pixel gray level average value of bright viewing area.
7. a kind of display device, which is characterized in that the display device includes:
Backlight module and display panel, the backlight module include multiple backlight subareas, and the display panel includes display function
Area, the display function zoning are divided into multiple viewing areas, and the multiple viewing area respectively corresponds with the multiple backlight subarea and sets
It sets；
And drive module, the drive module are electrically connected with the backlight module and the display panel respectively, the driving
Module is used for the picture to be shown according to the display panel, determines the dark viewing area and bright viewing area in the display function area,
The dark viewing area includes black viewing area and boundary viewing area, and the boundary viewing area is located at the black viewing area and described bright aobvious
Show between area, when the display panel shows the picture to be shown, the pixel gray level value for controlling the boundary viewing area is big
In 0 and be less than the bright viewing area adjacent thereto pixel gray level average value, also adjust the corresponding institute in the boundary viewing area
State the backlight illumination La and 0 < La < Lb of backlight subarea, wherein Lb is corresponding with the adjacent bright viewing area in the boundary viewing area
The backlight subarea backlight illumination.
8. a kind of electronic equipment, which is characterized in that including display device as claimed in claim 7.
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