WO2018090693A1 - 显示装置视角色差补偿方法、装置及显示装置 - Google Patents

显示装置视角色差补偿方法、装置及显示装置 Download PDF

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Publication number
WO2018090693A1
WO2018090693A1 PCT/CN2017/100251 CN2017100251W WO2018090693A1 WO 2018090693 A1 WO2018090693 A1 WO 2018090693A1 CN 2017100251 W CN2017100251 W CN 2017100251W WO 2018090693 A1 WO2018090693 A1 WO 2018090693A1
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Prior art keywords
pixel voltage
driving signal
signal
primary color
pixel
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PCT/CN2017/100251
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English (en)
French (fr)
Inventor
李嘉航
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惠科股份有限公司
重庆惠科金渝光电科技有限公司
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Priority to US16/466,503 priority Critical patent/US11295679B2/en
Publication of WO2018090693A1 publication Critical patent/WO2018090693A1/zh

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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
    • 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
    • G09G3/342—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines
    • G09G3/3426—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines the different display panel areas being distributed in two dimensions, e.g. matrix
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0439—Pixel structures
    • G09G2300/0452—Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0233—Improving the luminance or brightness uniformity across the screen
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0242—Compensation of deficiencies in the appearance of colours
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness
    • G09G2320/0646—Modulation of illumination source brightness and image signal correlated to each other
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/16—Calculation or use of calculated indices related to luminance levels in display data

Definitions

  • the present application relates to the field of panel display technologies, and in particular, to a method, device, and display device for visual field difference compensation of a display device.
  • VA liquid crystal technology has higher production efficiency and lower manufacturing cost, but the optical properties are compared with those of optical liquid crystal technology.
  • IPS liquid crystal technology has obvious optical defects.
  • large-size panels require a large viewing angle for commercial applications.
  • VA-type liquid crystal drivers often fail to meet market application requirements, which affects VA-type liquid crystal technology. Promotion.
  • the VA type liquid crystal technology solves the problem of the role bias by dividing the primary colors of RGB (red, green, blue) into main sub-pixels, and different primary driving voltages are given to the spatial primary and secondary pixels to solve the defect of the visual role.
  • RGB red, green, blue
  • Such a pixel design often requires redesigning metal traces or thin film transistor components to drive the sub-pixels, resulting in sacrificing the opaque open area, affecting the panel transmittance, and directly increasing the cost of the backlight module.
  • the present application provides a display device-based role difference compensation method performed by a computer device, which can reduce the difference in visual characters, and at the same time, can improve panel transmittance and reduce backlight module cost.
  • the present application provides a display device visual role difference compensation method performed by a computer device, including the following steps;
  • Controlling the display device to receive the input image acquiring the first pixel voltage and the second pixel voltage of each pixel in the adjacent two frames of images, and respectively obtaining the corresponding first driving signal and the first pixel voltage and the second pixel voltage Two drive signals;
  • the subsequent frame image is subjected to visual character difference compensation.
  • the first pixel voltage and the second pixel voltage of each pixel in the adjacent two frames of images are obtained, and the first pixel voltage and the second pixel voltage are respectively obtained for the corresponding table.
  • Determining whether backlight luminance compensation is required is performed according to the first driving signal and the second driving signal.
  • the voltage and the second pixel voltage look-up table respectively obtain the corresponding first driving signal and the second driving signal include:
  • Performing a lookup table on the first pixel voltage and the second pixel voltage acquiring a first driving signal and a second driving signal corresponding to the first pixel voltage, and acquiring a second corresponding to the second pixel voltage a drive signal and a second drive signal.
  • the first primary color is a green primary color.
  • the step of “calculating the brightness compensation signal required by the backlight module of the backlight region according to the first driving signal, the second driving signal, and the given reference brightness signal” includes:
  • An_L is a reference luminance signal
  • GTH and GTL are first driving signals and second driving signals corresponding to the first pixel voltage
  • G' TH, G' TL is a first driving signal and a second driving signal corresponding to the second pixel voltage
  • An_LL and An_LH are respectively brightness compensation signals that need to be calculated.
  • the step of “determining whether backlight brightness compensation is required according to the first driving signal and the second driving signal” includes:
  • the first driving signal and the second driving signal corresponding to the first pixel voltage are made to be difference; if the difference after the difference is within the preset range, the backlight brightness compensation is not performed; if the difference is less than the preset range , the backlight brightness compensation is performed.
  • the pixel voltage and the second pixel voltage look-up table respectively obtain the corresponding first driving signal and the second driving signal include:
  • the step of “calculating the brightness compensation signal required by the backlight module of the backlight region according to the first driving signal, the second driving signal, and the given reference brightness signal” includes:
  • An_LR *RTH+ An_LR *RTL An_LRL*RTH+An_LRH*RTL;
  • An_LG *GTH+ An_LG *GTL An_LGL*GTH+An_LGH*GTL;
  • An_LB *BTH+ An_LB *BTL An_LBL*BTH+An_LBH*BTL;
  • An_LR *R' TH+ An_LR *R’ TL An_LRL*R’ TH+An_LRH*R’ TL;
  • An_LG *G' TH+ An_LG *G' TL An_LGL*G’ TH+An_LGH*G’ TL;
  • An_LB *B' TH+ An_LB *B' TL An_LBL*B’ TH+An_LBH*B’ TL;
  • An_LR, An_LG, An_LB is a first reference luminance signal, a second reference luminance signal, and a third reference luminance signal, respectively;
  • RTH and RTL are the first driving signal and the second driving signal corresponding to the first pixel voltage of the first primary color, R' TH, R' TL a first driving signal and a second driving signal corresponding to a second pixel voltage of the first primary color;
  • the first driving signal and the second driving signal corresponding to the first pixel voltage of the third primary color of the BTH and the BTL, B' TH, B' a first driving signal and a second driving signal corresponding to the second pixel voltage of the third primary color of the TL;
  • An_LRL, An_LRH, An_LGL, An_LGH, An_LBL, and An_LBH are the brightness compensation signals that need to be calculated separately.
  • the present application provides a display device visual role difference compensating device, and the driving device includes:
  • a signal acquisition module configured to receive an input image, obtain a first pixel voltage and a second pixel voltage of each pixel in the adjacent two frames of images, and obtain a corresponding first driver for the first pixel voltage and the second pixel voltage a signal and a second drive signal;
  • a calculation module configured to calculate, according to the first driving signal, the second driving signal, and the given reference brightness signal, a brightness compensation signal required by the backlight module of the backlight region corresponding to two frames of different high and low voltages;
  • the backlight compensation module is configured to perform color difference compensation on the subsequent frame image according to the brightness compensation signal.
  • the display device visual difference compensation device further includes:
  • the judging module is configured to determine whether the backlight brightness compensation needs to be performed by using the first driving signal and the second driving signal.
  • the backlight module uses a white backlight
  • the signal acquisition module is configured to receive two adjacent frames of images, and acquire a first pixel voltage and a second pixel voltage of each pixel;
  • Performing a lookup table on the first pixel voltage and the second pixel voltage acquiring a first driving signal and a second driving signal corresponding to the first pixel voltage, and acquiring a second corresponding to the second pixel voltage a drive signal and a second drive signal.
  • the first primary color is a green primary color.
  • the calculation module substitutes the relevant parameters into the following formula to calculate a required brightness compensation signal
  • An_L is a reference luminance signal
  • GTH and GTL are first driving signals and second driving signals corresponding to the first pixel voltage
  • G' TH, G' TL is a first driving signal and a second driving signal corresponding to the second pixel voltage
  • An_LL and An_LH are respectively brightness compensation signals that need to be calculated.
  • the determining module performs a difference between the first driving signal and the second driving signal corresponding to the first pixel voltage; if the difference after the difference is within the preset range, backlight brightness compensation is not performed; The backlight brightness compensation is performed when the difference after the difference exceeds the preset range.
  • the signal acquisition module receives adjacent two frames of images, and respectively acquires first pixel voltages of the first primary color, the second primary color, and the third primary color of each pixel. And a second pixel voltage;
  • the calculation module substitutes the relevant parameters into the following formula to calculate a required brightness compensation signal
  • An_LR *RTH+ An_LR *RTL An_LRL*RTH+An_LRH*RTL;
  • An_LG *GTH+ An_LG *GTL An_LGL*GTH+An_LGH*GTL;
  • An_LB *BTH+ An_LB *BTL An_LBL*BTH+An_LBH*BTL;
  • An_LR *R' TH+ An_LR *R’ TL An_LRL*R’ TH+An_LRH*R’ TL;
  • An_LG *G' TH+ An_LG *G' TL An_LGL*G’ TH+An_LGH*G’ TL;
  • An_LB *B' TH+ An_LB *B' TL An_LBL*B’ TH+An_LBH*B’ TL;
  • An_LR, An_LG, An_LB is a first reference luminance signal, a second reference luminance signal, and a third reference luminance signal, respectively;
  • RTH and RTL are the first driving signal and the second driving signal corresponding to the first pixel voltage of the first primary color, R' TH, R' TL a first driving signal and a second driving signal corresponding to the second pixel voltage of the first primary color;
  • the first driving signal and the second driving signal corresponding to the first pixel voltage of the third primary color of the BTH and the BTL, B' TH, B' a first driving signal and a second driving signal corresponding to the second pixel voltage of the third primary color of the TL;
  • An_LRL , An_LRH , An_LGL , An_LGH , An_LBL , and An_LBH They are the brightness compensation signals that need to be calculated separately.
  • the application also provides a display device, the display device comprising:
  • the display device as described above views the character difference compensation device.
  • the display device view difference compensation device further includes:
  • the determining module determines whether backlight brightness compensation is needed according to the first driving signal and the second driving signal.
  • the backlight module uses a white backlight
  • the signal acquisition module receiving two adjacent frames of images, acquiring a first pixel voltage and a second pixel voltage of each pixel;
  • Performing a lookup table on the first pixel voltage and the second pixel voltage acquiring a first driving signal and a second driving signal corresponding to the first pixel voltage, and acquiring a second corresponding to the second pixel voltage a drive signal and a second drive signal.
  • the first primary color is a green primary color.
  • the present application obtains the first pixel voltage and the second pixel voltage of each pixel in the adjacent two frames by accepting the input image, and obtains the corresponding first driving signal and the first pixel voltage and the second pixel voltage respectively.
  • the two driving signals pass through the first driving signal and the second driving signal and the given reference brightness signal to calculate the brightness compensation signal, and then input the brightness compensation signal to the corresponding area of the backlight module to realize the visual role difference compensation.
  • the technical solution of the present application does not need to set primary and secondary pixels on the panel, thereby eliminating the need to design metal traces and thin film transistor components to drive the sub-pixels, simplifying the production process, reducing the cost, and improving the penetration of the panel by removing the sub-pixels. rate.
  • FIG. 1 is a flow chart of an embodiment of a method for visually compensating for a display device according to the present application
  • FIG. 2 is a flow chart of a further embodiment of a method for visually discriminating a display device according to the present application
  • step S100 in FIG. 2 is a specific flowchart of an embodiment of step S100 in FIG. 2;
  • step S100 in FIG. 2 is a specific flowchart of another embodiment of step S100 in FIG. 2;
  • FIG. 5 is a functional block diagram of an embodiment of a display device visual difference compensation device according to the present application.
  • FIG. 6 is a functional block diagram of a further embodiment of a display device visual difference compensation device according to the present application.
  • FIG. 7 is a functional block diagram of an embodiment of a display device of the present application.
  • first, second and the like in the present application are for the purpose of description only, and are not to be construed as indicating or implying their relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” or “second” may include at least one of the features, either explicitly or implicitly.
  • the technical solutions between the various embodiments may be combined with each other, but must be based on the realization of those skilled in the art, and when the combination of the technical solutions is contradictory or impossible to implement, it should be considered that the combination of the technical solutions does not exist. Nor is it within the scope of protection required by this application.
  • the present application proposes a display device visual role difference compensation method.
  • the display device includes the following steps:
  • S200 Calculate, according to the first driving signal, the second driving signal, and a given reference brightness signal, a brightness compensation signal required by the backlight module of the backlight area;
  • the first driving signal is a high level surface driving signal
  • the second driving signal is a low level panel driving signal
  • the image signal includes a voltage signal of the pixel, that is, a first pixel voltage and a second pixel voltage of the pixel.
  • the first pixel voltage is a high voltage
  • the second pixel voltage is a low voltage.
  • the liquid crystal display panel driving signal is sequentially driven by the high and low voltage signals in sequence with the image frame.
  • the first driving signal RH/GH/BH and the second driving signal RL/GL/BL are preset high and low voltage signals given according to the RGB input signal in advance, which are determined according to the viewing angle effect to be compensated, and have been produced at the time of display device production. Burn the relevant data into the display device.
  • LUT Look The Up Table, which displays the lookup table, is recorded in the hardware buffer.
  • Each R/G/B input signal input 0 to 255 corresponds to 256 high and low voltage signals with an 8-bit drive signal.
  • the display effect is determined by the panel driving signal and the luminance signal of the backlight being driven together.
  • the required brightness compensation signal is calculated according to the first driving signal, the second driving signal, and the given reference brightness signal, so that the display device is at the reference brightness signal, the first driving signal, and the second driving signal.
  • the display effect exhibited by the display device is consistent with the display effect driven by the combination of the brightness compensation signal, the first driving signal, and the second driving signal.
  • the present application obtains the first pixel voltage and the second pixel voltage of each pixel in the adjacent two frames by accepting the input image, and obtains the corresponding first driving signal and the first pixel voltage and the second pixel voltage respectively.
  • the two driving signals pass through the first driving signal and the second driving signal and the given reference brightness signal to calculate the brightness compensation signal, and then input the brightness compensation signal to the corresponding area of the backlight module to realize the visual role difference compensation.
  • the technical solution of the present application does not need to set primary and secondary pixels on the panel, thereby eliminating the need to design metal traces and thin film transistor components to drive the sub-pixels, simplifying the production process, reducing the cost, and improving the penetration of the panel by removing the sub-pixels. rate.
  • the steps of the brightness compensation signal required by the module include steps:
  • the backlight brightness compensation the adjustment of the backlight brightness is frequently performed, and the backlight of the human eye is easy to detect the driving of the backlight signal.
  • the present application includes the following embodiments according to the type of backlight used in the backlight module.
  • the step “receives an input image, and acquires a first pixel voltage and a second pixel voltage of each pixel in the adjacent two frames of images, Obtaining the corresponding first driving signal and the second driving signal respectively for the first pixel voltage and the second pixel voltage lookup table includes:
  • S110a receiving two adjacent frames of images, acquiring a first pixel voltage and a second pixel voltage of a first primary color of each pixel;
  • the backlight module in the area of the backlight module, according to the input frame image, there is a first pixel voltage and a second pixel voltage (distinguish from the signal amplitude). After obtaining the first pixel voltage and the second pixel voltage, obtaining a first driving signal and a second driving signal corresponding to the first pixel voltage by a table lookup operation, and obtaining a first driving corresponding to the second pixel voltage Signal and second drive signal.
  • the first primary color is a green primary color. Because the white light source only needs one brightness signal to adjust, and the brightness of the green primary color is relatively obvious with respect to the R/B (red primary color, blue primary color) primary color and the degree of flicker is also sharper to the human eye, so the green primary color corresponding to the color panel driving signal is used.
  • the first pixel voltage and the second pixel voltage are used to calculate a brightness compensation signal.
  • the step of “calculating the brightness compensation signal required by the backlight module of the backlight region according to the first driving signal, the second driving signal, and the given reference brightness signal” includes:
  • An_L is a reference luminance signal
  • GTH and GTL are first driving signals and second driving signals corresponding to the first pixel voltage
  • G' TH, G' TL is a first driving signal and a second driving signal corresponding to the second pixel voltage
  • An_LL and An_LH are respectively brightness compensation signals to be calculated.
  • the first frame image corresponds to the first driving signal RTH/GTH/BTH
  • the second frame image corresponds to the second driving signal RTL/GTL/BTL.
  • the first frame image corresponds to the luminance signals A1_LL, A2_LL, A3_LL, ...
  • the second frame image corresponds to The luminance signals A1_LH, A2_LH, A3_LH, ...
  • n 1, 2, 3, ..., N
  • n is an independently controllable light source block defined by a direct type backlight, wherein the backlight brightness signal An_LL / An_LH satisfies the following conditions:
  • the first pixel voltage G is used to check the viewing angle compensation required high and low panel pressure driving signal is GTH
  • the high and low panel pressure driving signals are used as the basis for calculating the luminance signal An_LL / An_LH of the corresponding area of the first frame image and the second frame image, and satisfy the following requirements:
  • the second pixel voltage G' is used to check the viewing angle compensation required high and low signal is G'TH
  • G'TL is also used as a basis for calculating the first frame image and the second frame image luminance signal An_LL / An_LH, and the brightness satisfies the following requirements:
  • the compensation signal An_LL / which can be calculated according to equations (1-2) and (1-3) An_LH, and backlight brightness compensation is performed when the next frame of image is input.
  • step of “determining whether backlight brightness compensation is required according to the most panel driving signal” includes:
  • This embodiment passes the judgment formula GTH - GTL ⁇ X ... (1-4), X is a critical condition for compensating for backlight brightness. When the signal voltage difference is not greater than X, backlight brightness compensation is not performed.
  • the step of “receiving an input image and acquiring a panel driving signal corresponding to the backlight region” includes:
  • S110b receiving adjacent two frames of images, respectively acquiring a first pixel voltage and a second pixel voltage of the first primary color, the second primary color, and the third primary color of each pixel;
  • the step of “calculating the brightness compensation signal required by the backlight module of the backlight area according to the panel driving signal and the given reference brightness signal” includes:
  • An_LR *RTH+ An_LR *RTL An_LRL*RTH+An_LRH*RTL;
  • An_LG *GTH+ An_LG *GTL An_LGL*GTH+An_LGH*GTL;
  • An_LB *BTH+ An_LB *BTL An_LBL*BTH+An_LBH*BTL;
  • An_LR *R' TH+ An_LR *R’ TL An_LRL*R’ TH+An_LRH*R’ TL;
  • An_LG *G' TH+ An_LG *G' TL An_LGL*G’ TH+An_LGH*G’ TL;
  • An_LB *B' TH+ An_LB *B' TL An_LBL*B’ TH+An_LBH*B’ TL;
  • An_LR, An_LG, An_LB is a first reference luminance signal, a second reference luminance signal, and a third reference luminance signal, respectively;
  • RTH and RTL are the first driving signal and the second driving signal corresponding to the first pixel voltage of the first primary color, R' TH, R' TL a first driving signal and a second driving signal corresponding to the second pixel voltage of the first primary color;
  • the first driving signal and the second driving signal corresponding to the first pixel voltage of the third primary color of the BTH and the BTL, B' TH, B' a first driving signal and a second driving signal corresponding to the second pixel voltage of the third primary color of the TL;
  • An_LRL , An_LRH , An_LGL , An_LGH , An_LBL , and An_LBH They are the brightness compensation signals that need to be calculated separately.
  • each frame image corresponds to the high voltage panel driving corresponding signal RTH/GTH/BTH; the second frame image corresponds to the second driving signal RTL/GTL. /BTL.
  • the backlight adopts a direct-down partition design, and each area is represented by A1, A2, A3, ... An, each block light source is composed of RGB three-color light source, and area A1 is composed of A1R, A1G, A1B three-color light source, and block A2 is composed of A2R, A2G, A2B three-color light source is combined.
  • Block An is composed of three color sources of AnR, AnG and AnB.
  • the first frame image area An corresponds to the backlight luminance signals An_LRL, An_LGL, An_LBL;
  • the second frame image block An corresponds to the backlight luminance signal An_LRH , An_LGH, An_LBH,
  • the first frame image/second frame image of the block n corresponds to the backlight luminance signals An_LRL/An_LRH, An_LGL/An_LGH , An_LBL/An_LBH is determined according to the following conditions:
  • An_LR, An_LG and An_LB is a given first reference luminance signal, second reference luminance signal, and third reference luminance signal, respectively.
  • the first pixel voltages R, G, and B in the block n are obtained by looking up the table to obtain the first driving signals RTH and GTH.
  • BTH and second drive signals RTL, GTL, BTL meet the following requirements
  • the second pixel voltages R', G', B' obtain the first driving signals R'TH, G'TH, B'TH by looking up the table.
  • the second drive signals R'TL, G'TL, B'TL satisfy the following requirements:
  • the brightness compensation signals An_LRL and An_LRH required for the three primary color backlights can be obtained according to the above formulas 2-2, 2-3, 3-2, 3-3, 4-2, 4-3. , An_LGL, An_LGH, An_LBL, and An_LBH.
  • X, Y, Z are critical conditions for backlight brightness compensation, when the first pixel voltage R, G When B corresponds to the high and low panel driving voltage signal voltage difference is greater than any of X, Y, Z, the backlight brightness compensation is activated.
  • the technical solution of the present application is to solve TN, OCB and VA
  • the TFT function of the TFT display panel has the disadvantage of using the direct or side backlight, white light or RGB three-color light source, and the second high driving signal of the panel is used to compensate the backlight brightness to reduce the flicker phenomenon caused by the difference between the panel high and low voltage driving signal switching. .
  • the pixel is no longer designed as a primary and secondary pixel, which greatly enhances the transmittance of the TFT display panel and reduces the backlight cost.
  • the pixel is no longer used as the primary and secondary pixel design for the penetration rate and the resolution of the extension is more significant.
  • the present application provides a display device visual difference compensation device, which may be a television, a computer, or the like.
  • the device includes:
  • the signal acquiring module 10 receiving the input image, acquiring the first pixel voltage and the second pixel voltage of each pixel in the adjacent two frames of images, and respectively obtaining the corresponding first driving signal for the first pixel voltage and the second pixel voltage And second drive signal
  • the calculating module 30 is configured to calculate, according to the first driving signal, the second driving signal, and the given reference brightness signal, a brightness compensation signal required for the backlight module of the backlight region to correspond to two frames of different high and low voltages;
  • the backlight compensation module 40 performs color difference compensation on the subsequent frame image according to the brightness compensation signal.
  • the display device apparent role difference compensation device further includes:
  • the determining module 20 determining, according to the first driving signal and the second driving signal, whether backlight brightness compensation is required;
  • the signal acquiring module 10 receives the input image, and acquires a first pixel voltage and a second pixel voltage of the first primary color of the backlight region;
  • Performing a lookup table on the first pixel voltage and the second pixel voltage acquiring a first driving signal and a second driving signal corresponding to the first pixel voltage, and acquiring a second corresponding to the second pixel voltage a drive signal and a second drive signal.
  • the first primary color is a green primary color.
  • the calculation module 30 substitutes the relevant parameters into the following formula to calculate a required brightness compensation signal
  • An_L is a reference luminance signal
  • GTH and GTL are first driving signals and second driving signals corresponding to the first pixel voltage
  • G' TH, G' TL is a first driving signal and a second driving signal corresponding to the second pixel voltage
  • An_LL and An_LH are respectively brightness compensation signals to be calculated.
  • the determining module 20 compares the difference between the first driving signal and the second driving signal corresponding to the first pixel voltage; if the difference after the difference is within the preset range, the backlight brightness compensation is not performed; If the difference after the difference exceeds the preset range, the backlight brightness compensation is performed.
  • the signal acquisition module 10 when the backlight module adopts a three-primary backlight, the signal acquisition module 10
  • the calculation module 30 substitutes the relevant parameters into the following formula to calculate a required brightness compensation signal
  • An_LR *RTH+ An_LR *RTL An_LRL*RTH+An_LRH*RTL;
  • An_LG *GTH+ An_LG *GTL An_LGL*GTH+An_LGH*GTL;
  • An_LB *BTH+ An_LB *BTL An_LBL*BTH+An_LBH*BTL;
  • An_LR *R' TH+ An_LR *R’ TL An_LRL*R’ TH+An_LRH*R’ TL;
  • An_LG *G' TH+ An_LG *G' TL An_LGL*G’ TH+An_LGH*G’ TL;
  • An_LB *B' TH+ An_LB *B' TL An_LBL*B’ TH+An_LBH*B’ TL;
  • An_LR, An_LG, An_LB is a first reference luminance signal, a second reference luminance signal, and a third reference luminance signal, respectively;
  • RTH and RTL are the first driving signal and the second driving signal corresponding to the first pixel voltage of the first primary color, R' TH, R' TL a first driving signal and a second driving signal corresponding to a second pixel voltage of the first primary color;
  • the first driving signal and the second driving signal corresponding to the first pixel voltage of the third primary color of the BTH and the BTL, B' TH, B' a first driving signal and a second driving signal corresponding to the second pixel voltage of the third primary color of the TL;
  • An_LRL , An_LRH , An_LGL , An_LGH , An_LBL , and An_LBH They are the brightness compensation signals that need to be calculated separately.
  • the present application further provides a visual character difference compensating device for a display device, the visual character difference compensating device comprising a processing unit and a non-volatile storage unit, the non-volatile storage unit storing executable instructions,
  • the processing unit executes executable instructions to implement the methods recited in the various embodiments described above.
  • the modules/units 10, 20, 30, 40 shown in Figure 6 of the present application can be software modules or software units.
  • various software modules or software units may be inherently stored in a non-volatile storage unit and executed by a processing unit.
  • the present application further provides a display device including a display panel 50, a driving component 60, and the display device visual difference compensation device.
  • a display device including a display panel 50, a driving component 60, and the display device visual difference compensation device.
  • the specific structure of the display device depending on the character difference compensation device is referred to the above embodiment,
  • the display device adopts all the technical solutions of all the above embodiments, and therefore has at least all the beneficial effects brought about by the technical solutions of the foregoing embodiments, and details are not described herein again.

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Abstract

一种显示装置视角色差补偿方法、装置及显示装置，其中，该方法包括：接收输入的图像，获取相邻两帧图像中每个像素的第一像素电压及第二像素电压，对第一像素电压及第二像素电压查表分别得到对应第一驱动信号及第二驱动信号（S100）；根据第一驱动信号、第二驱动信号及给定的基准亮度信号，计算背光区域的背光模组所需的亮度补偿信号（S300）；根据亮度补偿信号，对后续帧图像进行视角色差补偿（S400）。

Description

显示装置视角色差补偿方法、装置及显示装置
技术领域
本申请涉及面板显示技术领域，特别涉及一种显示装置视角色差补偿方法、装置及显示装置。
背景技术
现有的大尺寸液晶显示面板大多数采用负型VA液晶或IPS液晶技术，VA型液晶技术相较于IPS液晶技术存在较高的生产效率及低制造成本的优势，但光学性质上相较于IPS液晶技术存在较明显的光学性质缺陷，尤其是大尺寸面板在商业应用方面需要较大的视角呈现，VA型液晶驱动在视角色偏往往无法符合市场应用需求，这影响了VA型液晶技术的推广。
一般VA型液晶技术解决视角色偏的方式是将RGB（红色、绿色、蓝色）各基色再划分为主次像素，经空间上主次像素给予不同的驱动电压来解决视角色偏的缺陷，这样的像素设计往往需要再设计金属走线或薄膜晶体管元件来驱动次像素，造成可透光开口区牺牲，影响面板穿透率，直接造成背光模组成本的提升。
发明内容
本申请提供一种由计算机设备执行的显示装置视角色差补偿方法，其可降低视角色差，同时可提高面板穿透率并降低背光模组成本。
为实现上述目的，本申请提出了一种由计算机设备执行的显示装置视角色差补偿方法，包括以下步骤；
控制显示装置接收输入的图像，获取相邻两帧图像中每个像素的第一像素电压及第二像素电压，对第一像素电压及第二像素电压查表分别得到对应第一驱动信号及第二驱动信号；
根据所述第一驱动信号、第二驱动信号及给定的基准亮度信号，计算所述背光区域的背光模组所需的亮度补偿信号；
根据所述亮度补偿信号，对后续帧图像进行视角色差补偿。
在一实施例中，在“接收输入的图像，获取相邻两帧图像中每个像素的第一像素电压及第二像素电压，对第一像素电压及第二像素电压查表分别得到对应第一驱动信号及第二驱动信号”的步骤之后、“根据所述第一驱动信号、第二驱动信号及给定的基准亮度信号，计算所述背光区域的背光模组所需的亮度补偿信号”的步骤之前还包括步骤：
根据所述第一驱动信号、第二驱动信号，判断是否需要进行背光亮度补偿。
在一实施例中，当背光模组采用白色背光源时，所述步骤“接收输入的图像，获取相邻两帧图像中每个像素的第一像素电压及第二像素电压，对第一像素电压及第二像素电压查表分别得到对应第一驱动信号及第二驱动信号”包括：
接收相邻两帧图像，获取每个像素的第一像素电压及第二像素电压；
对所述第一像素电压及所述第二像素电压进行查表，获取所述第一像素电压所对应的第一驱动信号及第二驱动信号，并获取所述第二像素电压所对应的第一驱动信号及第二驱动信号。
在一实施例中，所述第一基色为绿基色。
在一实施例中，所述步骤“根据所述第一驱动信号、第二驱动信号及给定的基准亮度信号，计算所述背光区域的背光模组所需的亮度补偿信号”包括：
将相关参数代入下列公式，计算所需的亮度补偿信号；
An_L *GTH+ An_L *GTL= An_LL *GTH+ An_LH*GTL；
An_L *G’ TH+ An_L *G’ TL= An_LL *G’ TH+ An_LH*G’ TL；
其中An_L为基准亮度信号，GTH、GTL为第一像素电压对应的第一驱动信号及第二驱动信号，G’ TH、G’ TL为第二像素电压对应的第一驱动信号及第二驱动信号，An_LL和 An_LH分别为需要计算的亮度补偿信号。
在一实施例中，所述步骤“根据所述第一驱动信号及第二驱动信号，判断是否需要进行背光亮度补偿”包括：
将第一像素电压对应的第一驱动信号及第二驱动信号作差；若作差后的差值在预设范围内，则不进行背光亮度补偿；若作差后的差值超出预设范围，则进行背光亮度补偿。
在一实施例中，当背光模组采用三基色背光源时，所述步骤“接收输入的图像，获取相邻两帧图像中每个像素的第一像素电压及第二像素电压，对第一像素电压及第二像素电压查表分别得到对应第一驱动信号及第二驱动信号”包括：
接收相邻两帧图像，分别获取每个像素第一基色、第二基色及第三基色的第一像素电压及第二像素电压；
对所述第一像素电压及所述第二像素电压进行查表，分别获取第一基色、第二基色及第三基色的所述第一像素电压所对应的第一驱动信号及第二驱动信号，并分别获取第一基色、第二基色及第三基色的所述第二像素电压所对应的第一驱动信号及第二驱动信号。
在一实施例中，所述步骤“根据所述第一驱动信号、第二驱动信号及给定的基准亮度信号，计算所述背光区域的背光模组所需的亮度补偿信号”包括：
将相关参数代入公式下列公式，计算所需的亮度补偿信号；
An_LR *RTH+ An_LR *RTL=An_LRL*RTH+An_LRH*RTL；
An_LG *GTH+ An_LG *GTL=An_LGL*GTH+An_LGH*GTL；
An_LB *BTH+ An_LB *BTL=An_LBL*BTH+An_LBH*BTL；
An_LR *R’ TH+ An_LR *R’ TL=An_LRL*R’ TH+An_LRH*R’ TL；
An_LG *G’ TH+ An_LG *G’ TL=An_LGL*G’ TH+An_LGH*G’ TL；
An_LB *B’ TH+ An_LB *B’ TL=An_LBL*B’ TH+An_LBH*B’ TL；
其中An_LR、 An_LG、 An_LB分别为第一基准亮度信号、第二基准亮度信号及第三基准亮度信号；
RTH、 RTL 为第一基色的第一像素电压对应的第一驱动信号及第二驱动信号，R’ TH、 R’ TL 为第一基色的第二像素电压对应的第一驱动信号及第二驱动信号；
GTH、GTL第二基色的第一像素电压对应的第一驱动信号及第二驱动信号，G’ TH、G’ TL第二基色的第二像素电压对应的第一驱动信号及第二驱动信号；
BTH、BTL第三基色的第一像素电压对应的第一驱动信号及第二驱动信号，B’ TH、B’ TL第三基色的第二像素电压对应的第一驱动信号及第二驱动信号；
An_LRL、An_LRH、An_LGL、An_LGH、 An_LBL及 An_LBH 分别为需要计算的亮度补偿信号。
本申请提出一种显示装置视角色差补偿装置，该驱动装置包括：
信号获取模块，用以接收输入的图像，获取相邻两帧图像中每个像素的第一像素电压及第二像素电压，对第一像素电压及第二像素电压查表分别得到对应第一驱动信号及第二驱动信号；
计算模块，用以根据所述第一驱动信号、第二驱动信号及给定的基准亮度信号，计算所述背光区域的背光模组对应不同高低电压的两帧所需的亮度补偿信号；
背光补偿模块，用以根据所述亮度补偿信号，对后续帧图像进行色差补偿。
在一实施例中，所述显示装置视角色差补偿装置还包括：
判断模块：用以所述第一驱动信号、第二驱动信号，判断是否需要进行背光亮度补偿。
在一实施例中，当背光模组采用白色背光源时，
所述信号获取模块:用以接收相邻两帧图像，获取每个像素的第一像素电压及第二像素电压；
对所述第一像素电压及所述第二像素电压进行查表，获取所述第一像素电压所对应的第一驱动信号及第二驱动信号，并获取所述第二像素电压所对应的第一驱动信号及第二驱动信号。
在一实施例中，所述第一基色为绿基色。
在一实施例中，所述计算模块将相关参数代入下列公式，计算所需的亮度补偿信号；
An_L *GTH+ An_L *GTL= An_LL *GTH+ An_LH*GTL；
An_L *G’ TH+ An_L *G’ TL= An_LL *G’ TH+ An_LH*G’ TL；
其中An_L为基准亮度信号，GTH、GTL为第一像素电压对应的第一驱动信号及第二驱动信号，G’ TH、G’ TL为第二像素电压对应的第一驱动信号及第二驱动信号，An_LL和 An_LH分别为需要计算的亮度补偿信号。
在一实施例中，所述判断模块将第一像素电压对应的第一驱动信号及第二驱动信号作差；若作差后的差值在预设范围内，则不进行背光亮度补偿；若作差后的差值超出预设范围，则进行背光亮度补偿。
在一实施例中，当背光模组采用三基色背光源时，所述信号获取模块接收相邻两帧图像，分别获取每个像素第一基色、第二基色及第三基色的第一像素电压及第二像素电压；
对所述第一像素电压及所述第二像素电压进行查表，分别获取第一基色、第二基色及第三基色的所述第一像素电压所对应的第一驱动信号及第二驱动信号，并分别获取第一基色、第二基色及第三基色的所述第二像素电压所对应的第一驱动信号及第二驱动信号。
在一实施例中，所述计算模块将相关参数代入公式下列公式，计算所需的亮度补偿信号；
An_LR *RTH+ An_LR *RTL=An_LRL*RTH+An_LRH*RTL；
An_LG *GTH+ An_LG *GTL=An_LGL*GTH+An_LGH*GTL；
An_LB *BTH+ An_LB *BTL=An_LBL*BTH+An_LBH*BTL；
An_LR *R’ TH+ An_LR *R’ TL=An_LRL*R’ TH+An_LRH*R’ TL；
An_LG *G’ TH+ An_LG *G’ TL=An_LGL*G’ TH+An_LGH*G’ TL；
An_LB *B’ TH+ An_LB *B’ TL=An_LBL*B’ TH+An_LBH*B’ TL；
其中An_LR、 An_LG、 An_LB分别为第一基准亮度信号、第二基准亮度信号及第三基准亮度信号；
RTH、 RTL 为第一基色的第一像素电压对应的第一驱动信号及第二驱动信号，R’ TH、 R’ TL 为第一基色的第二像素电压对应的第一驱动信号及第二驱动信号，；
GTH、GTL第二基色的第一像素电压对应的第一驱动信号及第二驱动信号，G’ TH、G’ TL第二基色的第二像素电压对应的第一驱动信号及第二驱动信号；
BTH、BTL第三基色的第一像素电压对应的第一驱动信号及第二驱动信号，B’ TH、B’ TL第三基色的第二像素电压对应的第一驱动信号及第二驱动信号；
An_LRL 、An_LRH 、An_LGL 、An_LGH、 An_LBL及 An_LBH 分别为需要计算的亮度补偿信号。
本申请还提出一种显示装置，所述显示装置包括：
显示面板；
驱动部件；以及
如上所述的显示装置视角色差补偿装置。
可选地，所述显示装置视角色差补偿装置还包括：
判断模块：根据所述第一驱动信号、第二驱动信号，判断是否需要进行背光亮度补偿。
可选地，当背光模组采用白色背光源时，
所述信号获取模块:接收相邻两帧图像，获取每个像素的第一像素电压及第二像素电压；
对所述第一像素电压及所述第二像素电压进行查表，获取所述第一像素电压所对应的第一驱动信号及第二驱动信号，并获取所述第二像素电压所对应的第一驱动信号及第二驱动信号。
可选地，所述第一基色为绿基色。
本申请通过接受输入的图像，获取相邻两帧图像中每个像素的第一像素电压及第二像素电压，对第一像素电压及第二像素电压查表分别得到对应第一驱动信号及第二驱动信号，通过第一驱动信号及第二驱动信号和给定的基准亮度信号，从而计算得到亮度补偿信号，再将亮度补偿信号输入至背光模块对应的区域，实现对视角色差补偿。本申请技术方案无需在面板上设置主次像素，从而无需设计金属走线和薄膜晶体管元件来驱动次像素，简化了生产工艺，降低了成本，同时由于去掉了次像素，提高了面板的穿透率。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图示出的结构获得其他的附图。
图1为本申请显示装置视角色差补偿方法一实施例的流程图；
图2为本申请显示装置视角色差补偿方法进一步实施例的流程图；
图3为图2中步骤S100的一实施例具体流程图；
图4为图2中步骤S100的另一实施例具体流程图；
图5为本申请显示装置视角色差补偿装置一实施例的功能模块图；
图6为本申请显示装置视角色差补偿装置进一步实施例的功能模块图；
图7为本申请显示装置一实施例的功能模块图。
本申请目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请的一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
需要说明，在本申请中涉及“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本申请要求的保护范围之内。
本申请提出一种显示装置视角色差补偿方法。
参照图1，在本申请实施例中，该显示装置视角色差补偿方法，包括以下步骤：
S100、接收输入的图像，获取相邻两帧图像中每个像素的第一像素电压及第二像素电压，对第一像素电压及第二像素电压查表分别得到对应第一驱动信号及第二驱动信号；
S200、根据所述第一驱动信号、第二驱动信号及给定的基准亮度信号，计算所述背光区域的背光模组所需的亮度补偿信号；
S300、根据所述亮度补偿信号，对后续帧图像进行视角色差补偿。
本实施例中，第一驱动信号为高电平面驱动信号，第二驱动信号为低电平面板驱动信号。
需要说明的是，图像信号中包含有像素的电压信号，即像素的第一像素电压及第二像素电压。本实施例中，第一像素电压为高电压，第二像素电压为低电压。通常液晶显示面板驱动信号是由高低电压信号随着图像帧依次轮流驱动。第一驱动信号RH/GH/BH与第二驱动信号RL/GL/BL，为事先根据RGB输入信号给予的预设高低电压信号，是依照需要补偿的视角效果所决定，在显示装置生产时已经将相关数据烧录至显示装置里。一般是以LUT（Look Up Table，显示查找表）的方式记录在硬件缓冲器里面，以8 bit驱动信号来看每一R/G/B输入信号输入0 ～255共对应256高低电压信号，共有 3*256对高电压信号RH/GH/BH与低电压信号RL/GL/BL。
在显示装置中，显示效果是由面板驱动信号及背光源的亮度信号共同驱动来决定的。
本实施例中，根据第一驱动信号、第二驱动信号、及给定的基准亮度信号，计算得到所需的亮度补偿信号，使得显示装置在基准亮度信号、第一驱动信号及第二驱动信号配合下，显示装置呈现的显示效果与在亮度补偿信号、第一驱动信号及第二驱动信号共同配合驱动下的显示效果一致。
本申请通过接受输入的图像，获取相邻两帧图像中每个像素的第一像素电压及第二像素电压，对第一像素电压及第二像素电压查表分别得到对应第一驱动信号及第二驱动信号，通过第一驱动信号及第二驱动信号和给定的基准亮度信号，从而计算得到亮度补偿信号，再将亮度补偿信号输入至背光模块对应的区域，实现对视角色差补偿。本申请技术方案无需在面板上设置主次像素，从而无需设计金属走线和薄膜晶体管元件来驱动次像素，简化了生产工艺，降低了成本，同时由于去掉了次像素，提高了面板的穿透率。
参照图2，进一步地，在“接收输入的图像，获取背光区域对应图像的面板驱动信号”的步骤之后、“根据所述面板驱动信号及给定的基准亮度信号，计算所述背光区域的背光模组所需的亮度补偿信号”的步骤之前还包括步骤：
S200、根据所述最面板驱动信号，判断是否需要进行背光亮度补偿。
在进行背光亮度补偿时，由于频繁进行背光亮度的调整人眼余光易察觉背光信号的驱动，为降低背光调制的缺陷，通过判断是否需要进行背光亮度补偿，只在需要补偿时才进行背光亮度补偿，减少人眼不适现象。
本申请根据背光模组所采用的背光源类型，包括如下实施例。
在一实施例中，参照图3，在背光模组采用白色背光源时，所述步骤“接收输入的图像，获取相邻两帧图像中每个像素的第一像素电压及第二像素电压，对第一像素电压及第二像素电压查表分别得到对应第一驱动信号及第二驱动信号”包括：
S110a、接收相邻两帧图像，获取每个像素第一基色的第一像素电压及第二像素电压；
S120a、对所述第一像素电压及所述第二像素电压进行查表，获取所述第一像素电压所对应的第一驱动信号及第二驱动信号，并获取所述第二像素电压所对应的第一驱动信号及第二驱动信号。
需要说明的是，在背光模组的区域中，根据输入的帧图像不同，其存在第一像素电压及第二像素电压（从信号幅值上区分）。在获得第一像素电压及第二像素电压后，通过查表操作，得到所述第一像素电压所对应的第一驱动信号及第二驱动信号，并得到第二像素电压所对应的第一驱动信号及第二驱动信号。
本实施例中，所述第一基色为绿基色。因为白色光源只需一路亮度信号进行调节，而绿基色的亮度相对R/B（红基色、蓝基色）基色的较明显且闪烁程度人眼也较为敏锐，因此采用绿基色对应色面板驱动信号的第一像素电压及第二像素电压来计算亮度补偿信号。
具体地，所述步骤“根据所述第一驱动信号、第二驱动信号及给定的基准亮度信号，计算所述背光区域的背光模组所需的亮度补偿信号”包括：
将相关参数代入下列公式，计算所需的亮度补偿信号；
An_L *GTH+ An_L *GTL= An_LL *GTH+ An_LH*GTL；
An_L *G’ TH+ An_L *G’ TL= An_LL *G’ TH+ An_LH*G’ TL；
其中An_L为基准亮度信号，GTH、GTL为第一像素电压对应的第一驱动信号及第二驱动信号，G’ TH、G’ TL为第二像素电压对应的第一驱动信号及第二驱动信号，An_LL和 An_LH分别为需要计算的亮度补偿信号。
需要说明的是，本实施例中采用获取时序相相邻的两帧图像，第一帧图像对应第一驱动信号RTH/GTH/BTH，第二帧图像对应第二驱动信号RTL/GTL/BTL。第一帧图像对应区域背光的亮度信号A1_LL、A2_LL、A3_LL……An_LL，其中n=1，2，3…,N，n为直下式背光所定义的可独立控制光源区域；第二帧图像对应区域背光的亮度信号A1_LH、A2_LH、A3_LH……An_LH，其中n=1,2,3,…,N, n为直下式背光所定义的可独立控制光源区块，其中背光亮度信号An_LL / An_LH满足下列条件:
An_LL＜ An_L ＜An_LH ……(1-1)
第一像素电压G查表视角补偿所需高低面板压驱动信号为GTH 及GTL，高低面板压驱动信号作为计算第一帧图像及第二帧图像对应区域的亮度信号An_LL / An_LH的依据，满足如下要求：
GTH* An_L + GTL* An_L = GTH* An_LL+ GTL* An_LH…….(1-2)
第二像素电压G’查表视角补偿所需高低信号为G’TH 及G’TL同样作为计算第一帧图像及第二帧图像亮度信号An_LL / An_LH的依据，该亮度满足如下要求：
G’TH* An_L + G’TL* An_L = G’TH* An_LL + G’TL* An_LH……(1-3).
根据式(1-2)、(1-3)的可以计算出来的补偿信号An_LL / An_LH，并且于下一帧图像输入时时进行背光亮度补偿。
进一步地，所述步骤“根据所述最面板驱动信号，判断是否需要进行背光亮度补偿”包括：
将第一像素电压对应的第一驱动信号及第二驱动信号的作差；若作差后的差值在预设范围内，则不进行背光亮度补偿；若作差后的差值超出预设范围，则进行背光亮度补偿。
本实施例通过判断式GTH - GTL < X……(1-4), X为背光亮度进行补偿的临界条件，当信号电压差异不大于X时就不进行背光亮度补偿。
在另一实施例中，参照图4，在背光模组采用三基色背光源时，所述步骤“接收输入的图像，获取背光区域对应的面板驱动信号”包括：
S110b、接收相邻两帧图像，分别获取每个像素第一基色、第二基色及第三基色的第一像素电压及第二像素电压；
S120b、对所述第一像素电压及所述第二像素电压进行查表，分别获取第一基色、第二基色及第三基色的所述第一像素电压所对应的第一驱动信号及第二驱动信号，并分别获取第一基色、第二基色及第三基色的所述第二像素电压所对应的第一驱动信号及第二驱动信号。
具体地，所述步骤“根据所述面板驱动信号及给定的基准亮度信号，计算所述背光区域的背光模组所需的亮度补偿信号”包括：
将相关参数代入公式下列公式，计算所需的亮度补偿信号；
An_LR *RTH+ An_LR *RTL=An_LRL*RTH+An_LRH*RTL；
An_LG *GTH+ An_LG *GTL=An_LGL*GTH+An_LGH*GTL；
An_LB *BTH+ An_LB *BTL=An_LBL*BTH+An_LBH*BTL；
An_LR *R’ TH+ An_LR *R’ TL=An_LRL*R’ TH+An_LRH*R’ TL；
An_LG *G’ TH+ An_LG *G’ TL=An_LGL*G’ TH+An_LGH*G’ TL；
An_LB *B’ TH+ An_LB *B’ TL=An_LBL*B’ TH+An_LBH*B’ TL；
其中An_LR、 An_LG、 An_LB分别为第一基准亮度信号、第二基准亮度信号及第三基准亮度信号；
RTH、 RTL 为第一基色的第一像素电压对应的第一驱动信号及第二驱动信号，R’ TH、 R’ TL 为第一基色的第二像素电压对应的第一驱动信号及第二驱动信号，；
GTH、GTL第二基色的第一像素电压对应的第一驱动信号及第二驱动信号，G’ TH、G’ TL第二基色的第二像素电压对应的第一驱动信号及第二驱动信号；
BTH、BTL第三基色的第一像素电压对应的第一驱动信号及第二驱动信号，B’ TH、B’ TL第三基色的第二像素电压对应的第一驱动信号及第二驱动信号；
An_LRL 、An_LRH 、An_LGL 、An_LGH、 An_LBL及 An_LBH 分别为需要计算的亮度补偿信号。
需要说明的是，在本实施例中，采用获取时序相邻的两帧图像，第一帧图像对应高电压面板驱动对应信号RTH/GTH/BTH；第二帧图像对应第二驱动信号RTL/GTL/BTL。背光采用直下式分区设计，各区域分别代表为A1、A2、A3、…An，各区块光源由RGB三色光源组合，区域A1由A1R、A1G、A1B三色光源组合而成，区块A2由A2R、A2G、A2B三色光源组合而成, 区块An由AnR、AnG、AnB三色光源组合而成。第一帧图像区域An对应背光的亮度信号An_LRL、An_LGL、An_LBL；第二帧图像区块An对应的背光亮度信号An_LRH 、An_LGH 、 An_LBH，区块n 的第一帧图像/第二帧图像对应背光亮度信号An_LRL/An_LRH 、An_LGL/An_LGH 、An_LBL/An_LBH根据以下条件决定：
An_LRL＜ An_LR ＜An_LRH……（2-1）
An_LGL＜ An_LG ＜An_LGH……（3-1）
An_LBL＜ An_LB ＜An_LBH……（4-1）
其中，An_LR、An_LG及 An_LB分别为给定的第一基准亮度信号、第二基准亮度信号及第三基准亮度信号。区块n内的第一像素电压R 、G 、B，通过查表得到第一驱动信号RTH 、GTH 、BTH 及第二驱动信号RTL 、GTL 、BTL，满足如下要求
RTH*An_LR+ RTL*An_LR = RTH* An_LRL+ RTL* An_LRH……(2-2)
GTH*An_LG+ GTL*An_LG = GTH* An_LGL+ GTL* An_ LGH……(3-2)
BTH*An_LB+ BTL*An_LB = BTH* An_LBL+ BTL* An_ LBH……(4-2)
同理，第二像素电压R’、G’、B’ 通过查表得到第一驱动信号R’TH 、G’TH 、B’TH 及第二驱动信号R’TL、G’TL、B’TL，满足如下要求：
R’TH*An_LR+R’TL*An_LR= R’TH* An_LRL+ R’TL* An_LRH……(2-3)
G’TH*An_LG+G’TL*An_LG=G’TH*An_LGL+ G’TL* An_LGH……(3-3)
B’TH*An_LB+B’TL*An_LB= B’TH* An_LBL+ B’TL* An_LBH……(4-3)
代入相关参数，根据上述公式2-2、2-3、3-2、3-3、4-2、4-3即可求出三基色背光源所需的亮度补偿信号An_LRL 、An_LRH 、An_LGL 、An_LGH、An_LBL及An_LBH。
进一步地，根据第一像素电压对应的第一驱动信号及第二驱动信号，判断是否需要进行亮度补偿。
通过判断式 RTH - RTL < X……(2-4)
GTH - GTL < Y……(3-4)
BTH - BTL < Z……(4-4)
来判断是否需要进行视角色差补偿。X、Y、Z为背光亮度起动补偿得临界条件，当第一像素电压R 、G 、B对应高低面板驱动电压信号电压差值大于X、Y、Z中任意其一时就起动背光亮度补偿。
本申请技术方案为解决TN、OCB及VA 型TFT显示面板的视角色偏缺点，运用直下或侧边背光、白光或RGB三色光源，配合面板高第二驱动信号对背光亮度进行补偿调整，减少面板高低电压驱动信号切换差异造成的闪烁现象。同时还能维持高低液晶电压补偿视角色偏的优点。其次，像素不再设计成主要跟次要像素，大大提伸TFT显示面板的穿透率，减少背光成本的设计。对于高解析度TFT显示面板开发，像素不再作主要及次要像素设计对于穿透率及提伸解析度得效果更为显著。
参照图5，本申请提出一种显示装置视角色差补偿装置，该装置可以是电视机、电脑等。该装置包括：
信号获取模块10：接收输入的图像，获取相邻两帧图像中每个像素的第一像素电压及第二像素电压，对第一像素电压及第二像素电压查表分别得到对应第一驱动信号及第二驱动信号
计算模块30：据所述第一驱动信号、第二驱动信号及给定的基准亮度信号，计算所述背光区域的背光模组对应不同高低电压的两帧所需的亮度补偿信号；
背光补偿模块40：根据所述亮度补偿信号，对后续帧图像进行色差补偿。
参照图6，进一步地，所述的显示装置视角色差补偿装置还包括：
判断模块20：根据所述第一驱动信号、第二驱动信号，判断是否需要进行背光亮度补偿；
具体地，当背光模组采用白色背光源时，所述信号获取模块10接收输入的图像，获取背光区域第一基色的第一像素电压及第二像素电压；
对所述第一像素电压及所述第二像素电压进行查表，获取所述第一像素电压所对应的第一驱动信号及第二驱动信号，并获取所述第二像素电压所对应的第一驱动信号及第二驱动信号。
进一步地，所述第一基色为绿基色。
具体地，所述计算模块30将相关参数代入下列公式，计算所需的亮度补偿信号；
An_L *GTH+ An_L *GTL= An_LL *GTH+ An_LH*GTL；
An_L *G’ TH+ An_L *G’ TL= An_LL *G’ TH+ An_LH*G’ TL；
其中An_L为基准亮度信号，GTH、GTL为第一像素电压对应的第一驱动信号及第二驱动信号，G’ TH、G’ TL为第二像素电压对应的第一驱动信号及第二驱动信号，An_LL和 An_LH分别为需要计算的亮度补偿信号。
具体地，所述判断模块20将第一像素电压对应的第一驱动信号及第二驱动信号的作差；若作差后的差值在预设范围内，则不进行背光亮度补偿；若作差后的差值超出预设范围，则进行背光亮度补偿。
具体地，在背光模组采用三基色背光源时，所述信号获取模块10
接收相邻两帧图像，分别获取每个像素第一基色、第二基色及第三基色的第一像素电压及第二像素电压；
对所述第一像素电压及所述第二像素电压进行查表，分别获取第一基色、第二基色及第三基色的所述第一像素电压所对应的第一驱动信号及第二驱动信号，并分别获取第一基色、第二基色及第三基色的所述第二像素电压所对应的第一驱动信号及第二驱动信号。
具体地，所述计算模块30将相关参数代入公式下列公式，计算所需的亮度补偿信号；
An_LR *RTH+ An_LR *RTL=An_LRL*RTH+An_LRH*RTL；
An_LG *GTH+ An_LG *GTL=An_LGL*GTH+An_LGH*GTL；
An_LB *BTH+ An_LB *BTL=An_LBL*BTH+An_LBH*BTL；
An_LR *R’ TH+ An_LR *R’ TL=An_LRL*R’ TH+An_LRH*R’ TL；
An_LG *G’ TH+ An_LG *G’ TL=An_LGL*G’ TH+An_LGH*G’ TL；
An_LB *B’ TH+ An_LB *B’ TL=An_LBL*B’ TH+An_LBH*B’ TL；
其中An_LR、 An_LG、 An_LB分别为第一基准亮度信号、第二基准亮度信号及第三基准亮度信号；
RTH、 RTL 为第一基色的第一像素电压对应的第一驱动信号及第二驱动信号，R’ TH、 R’ TL 为第一基色的第二像素电压对应的第一驱动信号及第二驱动信号；
GTH、GTL第二基色的第一像素电压对应的第一驱动信号及第二驱动信号，G’ TH、G’ TL第二基色的第二像素电压对应的第一驱动信号及第二驱动信号；
BTH、BTL第三基色的第一像素电压对应的第一驱动信号及第二驱动信号，B’ TH、B’ TL第三基色的第二像素电压对应的第一驱动信号及第二驱动信号；
An_LRL 、An_LRH 、An_LGL 、An_LGH、 An_LBL及 An_LBH 分别为需要计算的亮度补偿信号。
本领域普通技术人员应当理解，本申请还提供一种显示装置的视角色差补偿装置，该视角色差补偿装置包括处理单元和非易失性存储单元，该非易失性存储单元存储可执行指令，该处理单元执行可执行指令用以实现以上所描述的各实施例所记载的方法。本领域普通技术人员应当进一步理解，本申请附图6中所显示的模块/单元10、20、30、40可为软件模块或者软件单元。此外，各种软件模块或软件单元可以固有地存储在非易失性存储单元中并通过处理单元进行执行。
参照图7，本申请还提出一种显示装置，该显示装置包括显示面板50、驱动部件60及上述显示装置视角色差补偿装置，该显示装置视角色差补偿装置的具体结构参照上述实施例，由于本显示装置采用了上述所有实施例的全部技术方案，因此至少具有上述实施例的技术方案所带来的所有有益效果，在此不再一一赘述。
以上所述仅为本申请的优选实施例，并非因此限制本申请的专利范围，凡是在本申请的发明构思下，利用本申请说明书及附图内容所作的等效结构变换，或直接/间接运用在其他相关的技术领域均包括在本申请的专利保护范围内。

Claims (17)

  1. 一种显示装置视角色差补偿方法，包括以下步骤；
    控制显示装置接收输入的图像，获取相邻两帧图像中每个像素的第一像素电压及第二像素电压，对所述第一像素电压及所述第二像素电压查表分别得到对应第一驱动信号及第二驱动信号；
    根据所述第一驱动信号、第二驱动信号及给定的基准亮度信号，计算所述背光区域的背光模组所需的亮度补偿信号；以及
    根据所述亮度补偿信号，对后续帧图像进行视角色差补偿。
  2. 如权利要求1所述的显示装置视角色差补偿方法，其中，在 “接收输入的图像，获取相邻两帧图像中每个像素的第一像素电压及第二像素电压，对第一像素电压及第二像素电压查表分别得到对应第一驱动信号及第二驱动信号”的步骤之后还包括步骤：
    根据所述第一驱动信号、第二驱动信号，判断是否需要进行背光亮度补偿。
  3. 如权利要求2所述的显示装置视角色差补偿方法，其中，当背光模组采用白色背光源时，所述步骤“接收输入的图像，获取相邻两帧图像中每个像素的第一像素电压及第二像素电压，对第一像素电压及第二像素电压查表分别得到对应第一驱动信号及第二驱动信号”包括：
    接收相邻两帧图像，获取每个像素第一基色的第一像素电压及第二像素电压；
    对所述第一像素电压及所述第二像素电压进行查表，获取所述第一像素电压所对应的第一驱动信号及第二驱动信号，并获取所述第二像素电压所对应的第一驱动信号及第二驱动信号。
  4. 如权利要求3所述的显示装置视角色差补偿方法，其中，所述第一基色为绿基色。
  5. 如权利要求4中所述的显示装置视角色差补偿方法，其中，所述步骤“根据所述第一驱动信号、第二驱动信号及给定的基准亮度信号，计算所述背光区域的背光模组所需的亮度补偿信号”包括：
    将相关参数代入下列公式，计算所需的亮度补偿信号；
    An_L *GTH+ An_L *GTL= An_LL *GTH+ An_LH*GTL；
    An_L *G’ TH+ An_L *G’ TL= An_LL *G’ TH+ An_LH*G’ TL；
    其中An_L为基准亮度信号，GTH、GTL为第一像素电压对应的第一驱动信号及第二驱动信号，G’ TH、G’ TL为第二像素电压对应的第一驱动信号及第二驱动信号，An_LL和 An_LH分别为需要计算的亮度补偿信号。
  6. 如权利要求3所述的显示装置视角色差补偿方法，其中，所述步骤“根据所述第一驱动信号及第二驱动信号，判断是否需要进行背光亮度补偿”包括：
    将第一像素电压对应的第一驱动信号及第二驱动信号作差；若作差后的差值在预设范围内，则不进行背光亮度补偿；若作差后的差值超出预设范围，则进行背光亮度补偿。
  7. 如权利要求2中所述的显示装置视角色差补偿方法，其中，当背光模组采用三基色背光源时，所述步骤“接收输入的图像，获取相邻两帧图像中每个像素的第一像素电压及第二像素电压，对第一像素电压及第二像素电压查表分别得到对应第一驱动信号及第二驱动信号”包括：
    接收相邻两帧图像，分别获取每个像素第一基色、第二基色及第三基色的第一像素电压及第二像素电压；
    对所述第一像素电压及所述第二像素电压进行查表，分别获取第一基色、第二基色及第三基色的所述第一像素电压所对应的第一驱动信号及第二驱动信号，并分别获取第一基色、第二基色及第三基色的所述第二像素电压所对应的第一驱动信号及第二驱动信号。
  8. 如权利要求7中所述的显示装置视角色差补偿方法，其中，所述步骤“根据所述第一驱动信号、第二驱动信号及给定的基准亮度信号，计算所述背光区域的背光模组所需的亮度补偿信号”包括：
    将相关参数代入公式下列公式，计算所需的亮度补偿信号；
    An_LR *RTH+ An_LR *RTL=An_LRL*RTH+An_LRH*RTL；
    An_LG *GTH+ An_LG *GTL=An_LGL*GTH+An_LGH*GTL；
    An_LB *BTH+ An_LB *BTL=An_LBL*BTH+An_LBH*BTL；
    An_LR *R’ TH+ An_LR *R’ TL=An_LRL*R’ TH+An_LRH*R’ TL；
    An_LG *G’ TH+ An_LG *G’ TL=An_LGL*G’ TH+An_LGH*G’ TL；
    An_LB *B’ TH+ An_LB *B’ TL=An_LBL*B’ TH+An_LBH*B’ TL；
    其中An_LR、 An_LG、 An_LB分别为第一基准亮度信号、第二基准亮度信号及第三基准亮度信号；
    RTH、 RTL 为第一基色的第一像素电压对应的第一驱动信号及第二驱动信号，R’ TH、 R’ TL 为第一基色的第二像素电压对应的第一驱动信号及第二驱动信号；
    GTH、GTL第二基色的第一像素电压对应的第一驱动信号及第二驱动信号，G’ TH、G’ TL第二基色的第二像素电压对应的第一驱动信号及第二驱动信号；
    BTH、BTL第三基色的第一像素电压对应的第一驱动信号及第二驱动信号，B’ TH、B’ TL第三基色的第二像素电压对应的第一驱动信号及第二驱动信号；
    An_LRL 、An_LRH 、An_LGL 、An_LGH、 An_LBL及 An_LBH 分别为需要计算的亮度补偿信号。
  9. 一种显示装置视角色差补偿装置，所述显示装置视角色差补偿装置包括：
    信号获取模块：用以接收输入的图像，获取相邻两帧图像中每个像素的第一像素电压及第二像素电压，对第一像素电压及第二像素电压查表分别得到对应第一驱动信号及第二驱动信号；
    计算模块：用以根据所述第一驱动信号、第二驱动信号及给定的基准亮度信号，计算所述背光区域的背光模组对应不同高低电压的两帧所需的亮度补偿信号；
    背光补偿模块：用以根据所述亮度补偿信号，对后续帧图像进行色差补偿。
  10. 如权利要求9所述的显示装置视角色差补偿装置，其中，所述显示装置视角色差补偿装置还包括：
    判断模块：用以根据所述第一驱动信号、第二驱动信号，判断是否需要进行背光亮度补偿。
  11. 如权利要求10所述的显示装置视角色差补偿装置，其中，当背光模组采用白色背光源时，
    所述信号获取模块:用以接收相邻两帧图像，获取每个像素的第一像素电压及第二像素电压；
    对所述第一像素电压及所述第二像素电压进行查表，获取所述第一像素电压所对应的第一驱动信号及第二驱动信号，并获取所述第二像素电压所对应的第一驱动信号及第二驱动信号。
  12. 如权利要求11所述的显示装置视角色差补偿装置，其中，所述第一基色为绿基色。
  13. 如权利要求12所述的显示装置视角色差补偿装置，其中，所述计算模块将相关参数代入下列公式，计算所需的亮度补偿信号；
    An_L *GTH+ An_L *GTL= An_LL *GTH+ An_LH*GTL；
    An_L *G’ TH+ An_L *G’ TL= An_LL *G’ TH+ An_LH*G’ TL；
    其中An_L为基准亮度信号，GTH、GTL为第一像素电压对应的第一驱动信号及第二驱动信号，G’ TH、G’ TL为第二像素电压对应的第一驱动信号及第二驱动信号，An_LL和 An_LH分别为需要计算的亮度补偿信号。
  14. 如权利要求11所述的显示装置视角色差补偿装置，其中，所述判断模块将第一像素电压对应的第一驱动信号及第二驱动信号作差；若作差后的差值在预设范围内，则不进行背光亮度补偿；若作差后的差值超出预设范围，则进行背光亮度补偿。
  15. 如权利要求10所述的显示装置视角色差补偿装置，其中，当背光模组采用三基色背光源时，所述信号获取模块接收相邻两帧图像，分别获取每个像素第一基色、第二基色及第三基色的第一像素电压及第二像素电压；
    对所述第一像素电压及所述第二像素电压进行查表，分别获取第一基色、第二基色及第三基色的所述第一像素电压所对应的第一驱动信号及第二驱动信号，并分别获取第一基色、第二基色及第三基色的所述第二像素电压所对应的第一驱动信号及第二驱动信号。
  16. 如权利要求15所述的显示装置视角色差补偿装置，其中，所述计算模块将相关参数代入公式下列公式，计算所需的亮度补偿信号；
    An_LR *RTH+ An_LR *RTL=An_LRL*RTH+An_LRH*RTL；
    An_LG *GTH+ An_LG *GTL=An_LGL*GTH+An_LGH*GTL；
    An_LB *BTH+ An_LB *BTL=An_LBL*BTH+An_LBH*BTL；
    An_LR *R’ TH+ An_LR *R’ TL=An_LRL*R’ TH+An_LRH*R’ TL；
    An_LG *G’ TH+ An_LG *G’ TL=An_LGL*G’ TH+An_LGH*G’ TL；
    An_LB *B’ TH+ An_LB *B’ TL=An_LBL*B’ TH+An_LBH*B’ TL；
    其中An_LR、 An_LG、 An_LB分别为第一基准亮度信号、第二基准亮度信号及第三基准亮度信号；
    RTH、 RTL 为第一基色的第一像素电压对应的第一驱动信号及第二驱动信号，R’ TH、 R’ TL 为第一基色的第二像素电压对应的第一驱动信号及第二驱动信号，；
    GTH、GTL第二基色的第一像素电压对应的第一驱动信号及第二驱动信号，G’ TH、G’ TL第二基色的第二像素电压对应的第一驱动信号及第二驱动信号；
    BTH、BTL第三基色的第一像素电压对应的第一驱动信号及第二驱动信号，B’ TH、B’ TL第三基色的第二像素电压对应的第一驱动信号及第二驱动信号；
    An_LRL 、An_LRH 、An_LGL 、An_LGH、 An_LBL及 An_LBH 分别为需要计算的亮度补偿信号。
  17. 一种显示装置，包括：
    显示面板；
    驱动部件；以及
    显示装置视角色差补偿装置；其中，所述显示装置视角色差补偿装置包括：
    信号获取模块：用以接收输入的图像，获取相邻两帧图像中每个像素的第一像素电压及第二像素电压，对第一像素电压及第二像素电压查表分别得到对应第一驱动信号及第二驱动信号；
    计算模块：用以根据所述第一驱动信号、第二驱动信号及给定的基准亮度信号，计算背光区域的背光模组所需的亮度补偿信号；
    背光补偿模块：用以根据所述亮度补偿信号，对后续帧图像进行色差补偿。
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