CN109686323A - 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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- CN109686323A CN109686323A CN201910151640.5A CN201910151640A CN109686323A CN 109686323 A CN109686323 A CN 109686323A CN 201910151640 A CN201910151640 A CN 201910151640A CN 109686323 A CN109686323 A CN 109686323A
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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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- 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
- G09G3/3607—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 for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
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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
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
- G09G2330/021—Power management, e.g. power saving
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- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
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, bright viewing area includes the first clear zone and bright border battery limit (BL), bright border area obtains the default backlight brightness values of the corresponding backlight subarea of preset gray scale value and bright border battery limit (BL) of each pixel in bright border battery limit (BL) between the first clear zone and dark viewing area；When display panel shows picture to be shown, the grayscale value of at least one pixel in bright border battery limit (BL) is adjusted to display grayscale value, the backlight brightness values of the corresponding backlight subarea in bright border battery limit (BL) are also adjusted to the first backlight brightness values, the display grayscale value of pixel is greater than the preset gray scale value of the pixel, and the first backlight brightness values of backlight subarea are less than the default backlight brightness values of the backlight subarea.In the embodiment of the present invention, the backlight illumination of the corresponding backlight subarea in bright border battery limit (BL) is reduced, backlight power consumption is saved.
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.
For the existing algorithm of HDR in the more picture of display background black region, the backlight power consumption in clear zone is larger in picture.
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
The excessive problem of the clear zone power consumption of picture.
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 viewing area includes multiple pixels, and the multiple viewing area and the multiple backlight subarea are distinguished
It is arranged in a one-to-one correspondence, 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,
The bright viewing area includes the first clear zone and bright border battery limit (BL), and the bright border area is located at first clear zone and the dark viewing area
Between, and obtain the corresponding backlight subarea of the preset gray scale value of each pixel and the bright border battery limit (BL) in the bright border battery limit (BL)
Default backlight brightness values；
When the display panel shows the picture to be shown, by the grayscale of at least one pixel in the bright border battery limit (BL)
Value is adjusted to display grayscale value, and the backlight brightness values of the corresponding backlight subarea in the bright border battery limit (BL) are also adjusted to the first back
Brightness values, wherein the display grayscale value of the pixel is greater than the preset gray scale value of the pixel, the first back of the backlight subarea
Brightness values are less than the default backlight brightness values 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 viewing area includes multiple pixels, the multiple viewing area with
The multiple backlight subarea respectively corresponds setting；
Drive module, the drive module are used for the picture to be shown according to the display panel, determine the display function
The dark viewing area and bright viewing area in energy area, the bright viewing area include the first clear zone and bright border battery limit (BL), and the bright border area is located at
Between first clear zone and the dark viewing area, and obtain in the bright border battery limit (BL) preset gray scale value of each pixel and described
The default backlight brightness values of the corresponding backlight subarea in bright border battery limit (BL) show the picture to be shown in the display panel
When, the grayscale value of at least one pixel in the bright border battery limit (BL) is adjusted to display grayscale value, it is also that the bright border battery limit (BL) is corresponding
The backlight brightness values of the backlight subarea be adjusted to the first backlight brightness values, wherein the display grayscale value of the pixel is greater than
The preset gray scale value of the pixel, the first backlight brightness values of the backlight subarea are less than the default backlight illumination of the backlight subarea
Value.
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, in the display stage, the pixel opening degree that drive module controls bright border battery limit (BL) increases, then exists
In the case that the display brightness of required bright border battery limit (BL) is constant, the backlight for reducing the corresponding backlight subarea in bright border battery limit (BL) is bright
Degree, reduces backlight power consumption；On the other hand, the corresponding backlight subarea in bright border battery limit (BL) backlight illumination reduce, then bright border battery limit (BL) and
The backlight illumination difference of dark viewing area reduces, and the display transition that can be realized display picture is soft, has reached good vision effect
Fruit.
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；
Fig. 6 is the schematic diagram of the display panel of display device shown in Fig. 1；
Fig. 7 is the schematic diagram for the display panel that the prior art provides.
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, viewing area 11 include multiple pixel (not shown), and multiple viewing areas 11 and multiple backlight subareas 21 difference are one by one
It is correspondingly arranged.In the present embodiment, the backlight of backlight module 20 carries out zonal control, and the backlight illumination of each backlight subarea 21 can be with
It is independently controlled, corresponding each backlight subarea 21 can provide the backlight of independent control to corresponding viewing area 11, thus
Realize the regional luminance adjustment of display device.
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,
Bright viewing area includes the first clear zone and bright border battery limit (BL), and bright border area obtains bright border between the first clear zone and dark viewing area
The default backlight brightness values of the corresponding backlight subarea of the preset gray scale value of each pixel and bright border battery limit (BL) in battery limit (BL).
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 112.Wherein, the bright picture of picture to be shown determines corresponding bright viewing area 112 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 bright viewing area 112 also according to picture to be shown,
In, bright viewing area 112 is located at the first clear zone 11a and shows slinkingly and shows including the first clear zone 11a and bright border battery limit (BL) 11b, bright border battery limit (BL) 11b
Between area 111.Obviously, bright border battery limit (BL) 11b is located at the periphery of the first clear zone 11a and is disposed adjacent.It should be noted that display function
Energy area 10a includes multiple bright border battery limit (BL) 11b, and each the bright viewing area 112 adjacent with dark viewing area 111 is bright border battery limit (BL) 11b,
The dark picture of picture to be shown determines that the grayscale of at least one sub-pixel of corresponding bright border battery limit (BL) 11b is not in the stage to be shown
0。
In the present embodiment, drive module 30 obtains after carrying out further division to bright viewing area 112 according to picture to be shown
First clear zone 11a and bright border battery limit (BL) 11b, then drive module 30 obtains each picture in bright border battery limit (BL) 11b also according to picture to be shown
The preset gray scale value of element and the default backlight brightness values of the corresponding backlight subarea 21 bright border battery limit (BL) 11b.It should be noted that pixel
The preset gray scale value respective pixel that be drive module 30 determine previously according to picture to be shown grayscale value, preset backlight illumination
Value is the backlight illumination for the correspondence backlight subarea that drive module 30 is determined previously according to display brightness needed for picture to be shown.Reason
In the case of, drive module controls pixel in the grayscale in display stage according to the preset gray scale value of the pixel obtained in advance, and
Drive module controls corresponding backlight subarea in the display stage also according to the default backlight brightness values of the backlight subarea obtained in advance
Backlight illumination.It will be understood by those skilled in the art that predetermined first clear zone of drive module, bright border battery limit (BL) and dark viewing area
It is parameter to be shown associated with picture to be shown, when picture to be shown changes, the first clear zone, bright border battery limit (BL) and shows slinkingly
Corresponding change can also occur for the position and quantity for showing area, not illustrate herein.
Optionally, determine that dark viewing area 111, bright border battery limit (BL) 11b and the first clear zone 11a of display function area 10a include: root
According to the picture to be shown of display panel 10, each viewing area 11 that the grayscale value of at least one pixel is greater than 0 is determined as bright
Each viewing area 11 that pixel gray level value is 0 is determined as dark viewing area 111 by viewing area 112；It will be with dark viewing area 111
Adjacent bright viewing area 112 is determined as bright border battery limit (BL) 11b, and the multiple bright viewing areas 112 that will be far from dark viewing area 111 are determined as
One clear zone 11a.In the present embodiment, dark viewing area 111, the first clear zone 11a and bright border battery limit (BL) 11b are drive module 30 according to aobvious
Show the partitioning scenario that picture determines in display function area 10a in advance.Pixel includes the different sub-pixel of multiple colors, every height
Pixel has grayscale value, and pixel gray level value is the grayscale coordinate value that the grayscale value of each sub-pixel in pixel is constituted.?
The grayscale value of this pixel is greater than 0 and is greater than 0 for the grayscale value of at least one sub-pixel in pixel, and it is picture that the grayscale value of pixel, which is 0,
The grayscale value of each sub-pixel is 0 in element.
Step 120, when display panel shows picture to be shown, by the grayscale value tune of at least one pixel in bright border battery limit (BL)
Section is display grayscale value, and the backlight brightness values of the corresponding backlight subarea in bright border battery limit (BL) are also adjusted to the first backlight brightness values,
In, the display grayscale value of pixel is greater than the preset gray scale value of the pixel, and the first backlight brightness values of backlight subarea are less than the backlight
The default backlight brightness values of subregion.
In the present embodiment, drive module 30 controls the display panel the backlight illumination of 10 displays and backlight module 20.Drive mould
Block 30 obtains the preset gray scale value of each pixel in bright border battery limit (BL) 11b according to picture to be shown in advance, and drives in the display stage
Dynamic model block 30 adjusts the grayscale value of each pixel in bright border battery limit (BL) 11b.Specifically, drive module 30 will be every in bright border battery limit (BL) 11b
The grayscale value of a pixel is adjusted to display grayscale value, it should be noted that and the display grayscale value of each pixel might not be identical,
Display grayscale value substantially refers to any grayscale value greater than preset gray scale value, i.e. drive module 30 improves every in bright border battery limit (BL) 11b
The grayscale value of a pixel makes pixel show that grayscale value is greater than the preset gray scale value of the pixel in the display stage.
In the present embodiment, drive module 30 is also adjusted the backlight brightness values of the corresponding backlight subarea 21 bright border battery limit (BL) 11b
For the first backlight brightness values.In the stage to be shown, the pixel of bright border battery limit (BL) 11b is preset gray scale value；In the display stage, mould is driven
The pixel gray level value that block 30 controls bright border battery limit (BL) 11b is promoted, then the pixel opening degree of bright border battery limit (BL) 11b increases, correspondingly,
It, can as the pixel opening degree of bright border battery limit (BL) 11b increases in the case that the display brightness of required bright border battery limit (BL) 11b is constant
Suitably reduce the backlight illumination of the corresponding backlight subarea 21 bright border battery limit (BL) 11b.In the present embodiment, the first back of backlight subarea 21
Brightness values are less than the default backlight brightness values of the backlight subarea 21, by the backlight of the corresponding backlight subarea 21 bright border battery limit (BL) 11b
Brightness regulation is the first backlight brightness values lower than default backlight brightness values, then reduces the backlight power consumption of backlight subarea 21.
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, bright viewing area include the first clear zone and bright border battery limit (BL), and bright border area obtains bright between the first clear zone and dark viewing area
The default backlight brightness values of the corresponding backlight subarea of the preset gray scale value of each pixel and bright border battery limit (BL) in frontier district；In display surface
When plate shows picture to be shown, the grayscale value of at least one pixel in bright border battery limit (BL) is adjusted to display grayscale value, also by bright border
The backlight brightness values of the corresponding backlight subarea in battery limit (BL) are adjusted to the first backlight brightness values, wherein the display grayscale value of pixel is greater than
The preset gray scale value of the pixel, the first backlight brightness values of backlight subarea are less than the default backlight brightness values of the backlight subarea.This
In embodiment, in the display stage, the pixel opening degree that drive module controls bright border battery limit (BL) increases, then in required bright border battery limit (BL)
Display brightness it is constant in the case where, reduce the backlight illumination of the corresponding backlight subarea in bright border battery limit (BL), reduce backlight function
Consumption；On the other hand, the backlight illumination of the corresponding backlight subarea in bright border battery limit (BL) reduces, then the backlight of bright border battery limit (BL) and dark viewing area is bright
It spends difference to reduce, the display transition that can be realized display picture is soft, has reached good visual effect.
Illustratively, based on the above technical solution, optional pixel includes red sub-pixel, green sub-pixels, indigo plant
Sub-pixels and white sub-pixels.The preset gray scale value of optional pixel includes the corresponding preset gray scale value of red sub-pixel, green
The corresponding preset gray scale value of sub-pixel, the corresponding preset gray scale value of blue subpixels and the corresponding preset gray scale of white sub-pixels
Value, the display grayscale value of pixel include the corresponding display grayscale value of red sub-pixel, the corresponding display grayscale value of green sub-pixels,
The corresponding display grayscale value of blue subpixels and the corresponding display grayscale value of white sub-pixels；By at least one picture in bright border battery limit (BL)
The grayscale value of element is adjusted to the specific implementation procedure of display grayscale value are as follows: by first of at least one pixel in bright border battery limit (BL) the sub- picture
The grayscale value of element is adjusted to the corresponding display grayscale value of the first sub-pixel, the corresponding display grayscale value of the first sub-pixel greater than this
The corresponding preset gray scale value of one sub-pixel, the first sub-pixel are red sub-pixel, green sub-pixels, blue subpixels or white
Pixel.
In the present embodiment, the pixel of display panel includes multiple sub-pixels, includes that tetra- sub-pixels of R, G, B, W are with pixel
Example, the grayscale value of pixel include the grayscale value grayR of its red sub-pixel R, the grayscale value grayG of green sub-pixels G, blue
The grayscale value grayW of the grayscale value grayB and white sub-pixels W of pixel B, i.e. the grayscale value of the pixel be characterized as (grayR,
GrayG, grayB, grayW).Such as pixel (25,0,236,147), i.e., in the pixel grayR be 25, grayG 0, grayB
For 236, grayW 147.It should be noted that picture to be shown is usually to be made of RGB three primary colors, i.e., drive module obtains
To after picture to be shown, the display parameters of obtained picture to be shown are only related to RGB, and drive module passes through to picture to be shown
Analysis processing so that the display parameters of output meet panel construction, i.e., drive module can be converted to RGB algorithm by calculating
RGBW algorithm, so that RGB input Parameter Switch is RGBW output parameter.It follows that the default ash of the pixel of picture to be shown
Rank value includes that the corresponding preset gray scale value of red sub-pixel, the corresponding preset gray scale value of green sub-pixels and blue subpixels are corresponding
Preset gray scale value, the display grayscale value of the pixel of viewing area includes the corresponding display grayscale value of red sub-pixel, the sub- picture of green
The corresponding display grayscale value of element, the corresponding display grayscale value of blue subpixels and the corresponding display grayscale value of white sub-pixels,
In, the display grayscale value of white sub-pixels can calculate to amplify again according to the preset gray scale value parameter of pixel to be obtained.
In the present embodiment, the grayscale value of at least one pixel in bright border battery limit (BL) is adjusted to the specific execution of display grayscale value
Process are as follows: the grayscale value of the first sub-pixel of at least one pixel in bright border battery limit (BL) is adjusted to the corresponding display of the first sub-pixel
Grayscale value, the corresponding display grayscale value of the first sub-pixel are greater than the corresponding preset gray scale value of first sub-pixel, the first sub-pixel
For red sub-pixel, green sub-pixels, blue subpixels or white sub-pixels.Drive module obtains the bright border in the stage to be shown
The preset gray scale value of each sub-pixel in battery limit (BL), then in the display stage to the grayscale of at least one sub-pixel in the bright border battery limit (BL)
The preset gray scale value for being larger than the sub-pixel is adjusted in value, the opening degree of pixel so can be improved, and then improve bright border
The backlight illumination of the panel luminance of battery limit (BL), backlight subarea so corresponding with bright border battery limit (BL) can be reduced suitably, to reduce backlight
Power consumption.
Illustratively, based on the above technical solution, the optional grayscale value by least one pixel in bright border battery limit (BL)
Being adjusted to display grayscale value includes:
According to the preset gray scale value of each pixel in the province power consumption gear n and bright border battery limit (BL) of picture to be shown, bright border is determined
Amplification coefficient α=1+ (D^ (1/n) the * Min/ (Max+Min), Min=min (Ri, Gi, Bi), Max=of each pixel in battery limit (BL)
Max (Ri, Gi, Bi), Ri are the preset gray scale value of red sub-pixel in the pixel, and Gi is the default of the pixel Green sub-pixel
Grayscale value, Bi are the preset gray scale value of blue subpixels in the pixel；
According to the amplification coefficient α of pixel each in bright border battery limit (BL), the amplification coefficient mean value α of bright border battery limit (BL) is calculatedo, and according to
The display grayscale value of at least one sub-pixel in following formula control bright border battery limit (BL),
Wo=αo* min (Ri, Gi, Bi) * D, Ro=αo* Ri-Wo, Go=αo* Gi-Wo, Bo=αo* Bi-Wo,
Wherein, D is correction factor, and Wo is the display grayscale value of white sub-pixels in pixel, and Ro is red sub- picture in pixel
The display grayscale value of element, Go are the display grayscale value of pixel Green sub-pixel, and Bo is the display ash of blue subpixels in pixel
Rank value.
In the present embodiment, after drive module determines the picture to be shown of display panel, picture to be shown can be analyzed
Each pixel in processing, the province power consumption gear n that thus can be previously obtained when display panel shows picture to be shown and bright border battery limit (BL)
Preset gray scale value.It should be noted that drive module can be accounted for according to the bright viewing area accounting of picture to be shown and dark viewing area
Than and pixel preset gray scale value, province power consumption gear n is calculated, it will be understood by those skilled in the art that saving power consumption gear n
Similarly to the prior art, details are not described herein for calculating process.When drive module analyzes picture to be shown, picture to be shown is usually
Enter drive module based on three primary colors, after drive module is analyzed and processed picture to be shown, the default of pixel can be obtained
Grayscale value, thus according to the preset gray scale value for saving power consumption gear n and pixel, it may be determined that the amplification system of each pixel in bright border battery limit (BL)
Number α=1+ (D^ (1/n) * Min/ (Max+Min).Obviously, the input parameter of pixel sub-pixel changes, and/or, save function
Consumption gear changes, and influences the amplification coefficient of pixel.It should be noted that picture to be shown is calculated in drive module
After saving power consumption gear, power consumption gear can also be saved according to improving to save power consumption gear or reduce needed for display, further according to actually required
Province's power consumption gear calculate pixel amplification coefficient.
After drive module calculates the amplification coefficient of each pixel of bright border battery limit (BL), to all pixels in bright border battery limit (BL)
Amplification coefficient summation is averaged again, can calculate the amplification coefficient mean value α of bright border battery limit (BL)o.Drive module is analyzed to be shown
Picture is to enter drive module based on three primary colors, and the pixel of display panel also typically includes W sub-pixel, therefore drive module
It needs RGB algorithm being converted to RGBW algorithm.So in the amplification coefficient mean value α for determining bright border battery limit (BL)oWherein pixel is pre-
If after grey machine value, the display grayscale value of at least one sub-pixel in bright border battery limit (BL), Wo=α can be controlled by following formulao*
Min (Ri, Gi, Bi) * D, Ro=αo* Ri-Wo, Go=αo* Gi-Wo, Bo=αo*Bi-Wo.Drive module is according to being calculated
The pixel of the display grayscale value control bright border battery limit (BL) of the pixel of bright border battery limit (BL) is shown, so that the pixel opening degree of bright border battery limit (BL) increases
Greatly.It should be noted that the preset gray scale value of pixel is the display parameters for the picture to be shown that drive module obtains, pixel is shown
Show that grayscale value is the practical display parameters controlled the display panel of drive module, the display grayscale value of pixel adapts to the face of display panel
Hardened structure.
The backlight brightness values of the corresponding backlight subarea in bright border battery limit (BL) are optionally adjusted to the specific of the first backlight brightness values
Implementation procedure are as follows: the first backlight brightness values of the corresponding backlight subarea in bright border battery limit (BL) are adjusted to the default backlight of the backlight subarea
1/ α of brightness valueo。
The backlight illumination of the display effect of display device and the pixel opening degree of display panel and backlight module is related,
The display brightness that the opening degree of display panel increases then display device improves, and the backlight illumination increase of backlight module then shows dress
The display brightness set improves.Under the display brightness unanimous circumstances of display device, after increasing display panel pixel opening degree,
The backlight illumination of backlight module can suitably be reduced, alternatively, increasing the backlight illumination of backlight module, can suitably reduce display panel
Pixel opening degree so can also reach identical display effect.In the present embodiment, drive module controls the display panel display
When picture to be shown, adjusted to obtain the display grayscale value of pixel according to the amplification coefficient of pixel, so that the opening degree of pixel increases
Greatly, the backlight illumination of the corresponding backlight subarea in the affiliated viewing area of the pixel can be lowered based on this, so guaranteeing display device
On the basis of showing picture effect, the power consumption of backlight subarea is reduced.
Display device provided in this embodiment is suitable for the display device based on RGBW technology, and the key of RGBW technology is
RGBW algorithm, drive module are calculated after the amplification coefficient of pixel, can be by amplification coefficient formula by the default ash of pixel
Rank value is converted to the display grayscale value of pixel.It should be noted that the correction factor of different display panels is different, in display panel
After production is completed, correction factor can be obtained according to test, do not illustrate the calculating process of correction factor herein.It needs to illustrate
, RGBW technology is by being added to the traditional rgb pixel arrangement being made of three sub-pixels of red, green, blue for white sub-pixels
In, then with corresponding sub-pixel Rendering, to be imaged.It, can using RGBW technology compared to the design of tri- sub-pixels of RGB
To realize higher resolution ratio and higher light transmission rate.This is because backlight subarea can be shone by white sub-pixels, and
It is not blocked by the close-packed arrays of red sub-pixel, green sub-pixels and blue subpixels, the light transmission rate of display panel and bright
Degree is increased, so as to realize that the backlight as described above for further lowering the corresponding backlight subarea of pixel is bright
Degree, a greater degree of power consumption for reducing backlight module, realizes the effect for reducing power consumption.
Illustratively, based on the above technical solution, optional dark viewing area 111 includes black viewing area as shown in Figure 6
11d and dark side battery limit (BL) 11c, dark side battery limit (BL) 11c between black viewing area 11d and bright border battery limit (BL) 11b, dark side battery limit (BL) 11c with it is bright
Frontier district 11b is disposed adjacent, and black viewing area 11d is located at side of the dark side battery limit (BL) 11c far from bright border battery limit (BL) 11b.
In the prior art, as shown in Figure 7 in order to realize it is bright it is dark between display transition it is soft, in bright viewing area 1 and black aobvious
Show that setting dark side battery limit (BL) 3 between area 2, the dark side battery limit (BL) 3 and black viewing area 2 belong to the dark viewing area that pixel gray level is 0, so
By improving the backlight illumination of the corresponding backlight subarea in dark side battery limit (BL) 3, the penetrance for realizing dark side battery limit (BL) 3 is greater than black viewing area
And it is less than bright viewing area.Since the backlight illumination of the corresponding backlight subarea in bright viewing area 1 and black viewing area 2 differs greatly,
In order to which transition is soft, multiple adjacent dark side battery limit (BL)s 3 are set, are directed toward the side of black viewing area 2 upwardly through successively in bright viewing area 1
Reduce the backlight illumination of the corresponding backlight subarea in dark side battery limit (BL) 3, realize it is bright it is dark between display transition it is soft so that dark side
The quantity of battery limit (BL) 3 is excessive, and backlight power consumption is excessive.Such as 4 dark side battery limit (BL)s 3 is needed to realize bright viewing area 1 and black display shown in Fig. 7
Soft transitions between area 2.
In the present embodiment, the pixel gray level value for promoting the bright border battery limit (BL) 11b adjacent with dark viewing area 111 makes it show grayscale
Value is greater than its preset gray scale value, then the pixel opening degree of bright border battery limit (BL) 11b increases, then shows in identical bright border battery limit (BL) 11b
Under brightness demand, it is bright that the backlight illumination of the corresponding backlight subarea 21 bright border battery limit (BL) 11b needed for the present embodiment is lower than default backlight
The backlight illumination difference of degree, corresponding bright border battery limit (BL) 11b and black viewing area 11d reduce, and less dark side battery limit (BL) so can be used
11c carries out bright border battery limit (BL) 11b and black viewing area 11d and shows transition, also can be realized it is bright it is dark between display transition it is soft, dark side
The quantity of battery limit (BL) 11c is reduced, and corresponding 21 quantity of backlight subarea for providing backlight to dark side battery limit (BL) 11c is reduced, so as to drop
Low backlight power consumption, for example, only needed shown in Fig. 63 dark side battery limit (BL) 11c can be realized bright border battery limit (BL) 11b and black viewing area 11d it
Between soft transitions.On the other hand, the pixel opening degree of bright border battery limit (BL) 11b increases consumed power consumption well below bright border
The power consumption that area 11b is saved corresponding backlight subarea 21, therefore display power consumption is still reduced on the whole.
Optionally, driving method further include: when display panel shows picture to be shown, adjust the pixel of dark side battery limit (BL)
Grayscale value is greater than 0 and is less than the pixel gray level average value of bright border battery limit (BL) adjacent thereto, also the corresponding backlight in adjusting dark side battery limit (BL)
The display backlight brightness value L a and 0 < La < Lb of subregion, wherein Lb is the default backlight brightness values of the dark side battery limit (BL).
In the present embodiment, in the stage to be shown, the pixel gray level value of dark side battery limit (BL) 11c should be 0.In the display stage, drive
The pixel gray level value that dynamic model block 30 controls dark side battery limit (BL) 11c is not 0, then the pixel of dark side battery limit (BL) 11c opens light-permeable, so may be used
Reduce the panel luminance of dark side battery limit (BL) 11c and the panel luminance difference of bright border battery limit (BL) 11b adjacent thereto.In the display stage, drive
The pixel gray level value that dynamic model block 30 controls dark side battery limit (BL) 11c is less than the pixel gray level average value of bright border battery limit (BL) 11b adjacent thereto,
Then the panel luminance of dark side battery limit (BL) 11c is lower than bright border battery limit (BL) 11b, still falls within dark viewing area.
In the present embodiment, drive module 30 also adjusts the backlight illumination La and 0 of the corresponding backlight subarea 21 dark side battery limit (BL) 11c
< La < Lb, wherein Lb is the default backlight illumination of the corresponding backlight subarea 21 dark side battery limit (BL) 11c.The pixel of dark side battery limit (BL) 11c
Light-permeable is opened, then shows that the backlight of the corresponding backlight subarea 21 stage dark side battery limit (BL) 11c may pass through the dark side battery limit (BL) on panel
11c is shown, the display brightness of dark side battery limit (BL) 11c is improved.The backlight illumination of the corresponding backlight subarea 21 dark side battery limit (BL) 11c
La < Lb then avoids the display brightness of dark side battery limit (BL) 11c from being higher than bright border battery limit (BL) 11b, still falls within dark viewing area.
Based on the same inventive concept, the embodiment of the invention also provides a kind of display device, which includes:
Backlight module and display panel, backlight module include multiple backlight subareas, and display panel includes display function area, are shown
Show that function zoning is divided into multiple viewing areas, viewing area includes multiple pixels, and multiple viewing areas are respectively corresponded with multiple backlight subareas
Setting；
Drive module, drive module are used for the picture to be shown according to display panel, determine that showing slinkingly for display function area is shown
Area and bright viewing area, bright viewing area include the first clear zone and bright border battery limit (BL), bright border area be located at the first clear zone and dark viewing area it
Between, and obtain the default backlight illumination of the corresponding backlight subarea of preset gray scale value and bright border battery limit (BL) of each pixel in bright border battery limit (BL)
The grayscale value of at least one pixel in bright border battery limit (BL) is adjusted to display grayscale when display panel shows picture to be shown by value
The backlight brightness values of the corresponding backlight subarea in bright border battery limit (BL) are also adjusted to the first backlight brightness values, wherein the display of pixel by value
Grayscale value is greater than the preset gray scale value of the pixel, and the first backlight brightness values of backlight subarea are less than the default backlight of the backlight subarea
Brightness value.
The present embodiment, the shadow of the display brightness of viewing area by the panel luminance of viewing area and the backlight illumination of backlight subarea
It rings, the panel luminance of viewing area is higher, and the display brightness of viewing area is higher, and the backlight illumination of backlight subarea is higher, viewing area
Display brightness is higher.It obviously, can be by promoting bright border on the original basis under the display brightness demand of identical bright border battery limit (BL)
The mode of the backlight illumination of the panel luminance and reduction backlight subarea in area realizes the display brightness of bright border battery limit (BL), can so reduce back
Optical module power consumption.
It should be noted that drive module is to the panel luminance of bright border battery limit (BL) backlight corresponding with its point in the display stage
The backlight illumination in area is adjusted so that the backlight illumination of the panel luminance of bright border battery limit (BL) and its corresponding backlight subarea with to aobvious
Show stage difference.And other display areas such as the first clear zone and dark viewing area, the back of panel luminance backlight subarea corresponding with its
Brightness is 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 (10)
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 viewing area include multiple pixels, and the multiple viewing area corresponds respectively with the multiple backlight subarea
Setting, the driving method include:
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
Bright viewing area includes the first clear zone and bright border battery limit (BL), the bright border area be located at first clear zone and the dark viewing area it
Between, and obtain the corresponding backlight subarea of the preset gray scale value of each pixel and the bright border battery limit (BL) in the bright border battery limit (BL)
Default backlight brightness values；
When the display panel shows the picture to be shown, by the grayscale value tune of at least one pixel in the bright border battery limit (BL)
Section is display grayscale value, and it is bright that the backlight brightness values of the corresponding backlight subarea in the bright border battery limit (BL) are also adjusted to the first backlight
Angle value, wherein the display grayscale value of the pixel is greater than the preset gray scale value of the pixel, and the first backlight of the backlight subarea is bright
Angle value is less than the default backlight brightness values of the backlight subarea.
2. driving method according to claim 1, which is characterized in that determine the dark viewing area, bright in the display function area
Frontier district and the first clear zone 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 bright viewing area adjacent with the dark viewing area is determined as the bright border battery limit (BL), will be far from the multiple of the dark viewing area
Bright viewing area is determined as first clear zone.
3. driving method according to claim 1, which is characterized in that the pixel includes red sub-pixel, the sub- picture of green
Element, blue subpixels and white sub-pixels.
4. driving method according to claim 3, which is characterized in that the preset gray scale value of the pixel includes red sub- picture
The corresponding preset gray scale value of element, the corresponding preset gray scale value of green sub-pixels, the corresponding preset gray scale value of blue subpixels and white
The corresponding preset gray scale value of sub-pixels, the display grayscale value of the pixel include the corresponding display grayscale value of red sub-pixel,
The corresponding display grayscale value of green sub-pixels, the corresponding display grayscale value of blue subpixels and the corresponding display ash of white sub-pixels
Rank value；
The grayscale value of at least one pixel in the bright border battery limit (BL) is adjusted to the specific implementation procedure of display grayscale value are as follows:
It is corresponding that the grayscale value of first sub-pixel of at least one pixel in the bright border battery limit (BL) is adjusted to first sub-pixel
Display grayscale value, the corresponding display grayscale value of first sub-pixel is greater than the corresponding preset gray scale value of first sub-pixel,
First sub-pixel is red sub-pixel, green sub-pixels, blue subpixels or white sub-pixels.
5. driving method according to claim 3, which is characterized in that by the ash of at least one pixel in the bright border battery limit (BL)
Rank value is adjusted to display grayscale value
According to the preset gray scale value of each pixel in the province power consumption gear n of the picture to be shown and the bright border battery limit (BL), determine
In the bright border battery limit (BL) each pixel amplification coefficient α=1+ (D^ (1/n) * Min/ (Max+Min), Min=min (Ri, Gi,
Bi), Max=max (Ri, Gi, Bi), Ri are the preset gray scale value of red sub-pixel in the pixel, and Gi is pixel Green
The preset gray scale value of pixel, Bi are the preset gray scale value of blue subpixels in the pixel；
According to the amplification coefficient α of each pixel in the bright border battery limit (BL), the amplification coefficient mean value α of the bright border battery limit (BL) is calculatedo, and
The display grayscale value of at least one sub-pixel in the bright border battery limit (BL) is controlled according to following formula,
Wo=αo* min (Ri, Gi, Bi) * D, Ro=αo* Ri-Wo, Go=αo* Gi-Wo, Bo=αo* Bi-Wo,
Wherein, D is correction factor, and Wo is the display grayscale value of white sub-pixels in the pixel, and Ro is red in the pixel
The display grayscale value of sub-pixel, Go are the display grayscale value of the pixel Green sub-pixel, and Bo is blue in the pixel
The display grayscale value of pixel.
6. driving method according to claim 5, which is characterized in that by the corresponding backlight subarea in the bright border battery limit (BL)
Backlight brightness values be adjusted to the specific implementation procedures of the first backlight brightness values are as follows:
First backlight brightness values of the corresponding backlight subarea in the bright border battery limit (BL) are adjusted to the default back of the backlight subarea
1/ α of brightness valueso。
7. driving method according to claim 1, which is characterized in that the dark viewing area includes black viewing area and dark border
Area, the dark border area is between the black viewing area and the bright border battery limit (BL), the dark side battery limit (BL) and the bright border battery limit (BL)
It is disposed adjacent, the black viewing area is located at side of the dark side battery limit (BL) far from the bright border battery limit (BL).
8. driving method according to claim 7, which is characterized in that further include:
When the display panel shows the picture to be shown, the pixel gray level value for adjusting the dark side battery limit (BL) is greater than 0 and small
Pixel gray level average value in the bright border battery limit (BL) adjacent thereto also adjusts the corresponding backlight subarea in the dark side battery limit (BL)
Display backlight brightness value L a and 0 < La < Lb, wherein Lb be the dark side battery limit (BL) default backlight brightness values.
9. 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 viewing area includes multiple pixels, the multiple viewing area with it is described
Multiple backlight subareas respectively correspond setting；
Drive module, the drive module are used for the picture to be shown according to the display panel, determine the display function area
Dark viewing area and bright viewing area, the bright viewing area includes the first clear zone and bright border battery limit (BL), and the bright border area is located at described
Between first clear zone and the dark viewing area, and obtain the preset gray scale value of each pixel and the bright border in the bright border battery limit (BL)
The default backlight brightness values of the corresponding backlight subarea in battery limit (BL) will when the display panel shows the picture to be shown
The grayscale value of at least one pixel is adjusted to display grayscale value in the bright border battery limit (BL), also that the bright border battery limit (BL) is corresponding described
The backlight brightness values of backlight subarea are adjusted to the first backlight brightness values, wherein the display grayscale value of the pixel is greater than the pixel
Preset gray scale value, the first backlight brightness values of the backlight subarea are less than the default backlight brightness values of the backlight subarea.
10. a kind of electronic equipment, which is characterized in that including display device as claimed in claim 9.
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| CN116092439B (en) * | 2023-04-10 | 2023-06-23 | 惠科股份有限公司 | Liquid crystal display device and electronic apparatus |
| CN118553206A (en) * | 2024-07-29 | 2024-08-27 | Tcl华星光电技术有限公司 | Driving method and driving device for display device and display device |
| CN118553206B (en) * | 2024-07-29 | 2024-10-15 | Tcl华星光电技术有限公司 | Driving method and driving device for display device and display device |
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