WO2018113342A1 - 显示装置的驱动方法、装置及显示装置 - Google Patents

显示装置的驱动方法、装置及显示装置 Download PDF

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Publication number
WO2018113342A1
WO2018113342A1 PCT/CN2017/100248 CN2017100248W WO2018113342A1 WO 2018113342 A1 WO2018113342 A1 WO 2018113342A1 CN 2017100248 W CN2017100248 W CN 2017100248W WO 2018113342 A1 WO2018113342 A1 WO 2018113342A1
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WIPO (PCT)
Prior art keywords
pixel
sub
pixels
driving
signal
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PCT/CN2017/100248
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English (en)
French (fr)
Inventor
陈猷仁
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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 US16/465,955 priority Critical patent/US10818251B2/en
Publication of WO2018113342A1 publication Critical patent/WO2018113342A1/zh

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Classifications

    • 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
    • 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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3648—Control of matrices with row and column drivers using an active 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
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0439—Pixel structures
    • G09G2300/0443—Pixel structures with several sub-pixels for the same colour in a pixel, not specifically used to display gradations
    • G09G2300/0447—Pixel structures with several sub-pixels for the same colour in a pixel, not specifically used to display gradations for multi-domain technique to improve the viewing angle in a liquid crystal display, such as multi-vertical alignment [MVA]
    • 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
    • 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 driving method of a display device, a device and a display device using the same.
  • VA liquid crystal technology has higher production efficiency and lower manufacturing cost than IPS liquid crystal technology, but optical properties have obvious optical defects compared with IPS liquid crystal technology, especially Large-size panels require a large perspective in commercial applications.
  • VA-type liquid crystal drivers often fail to meet market application requirements, which affects the promotion of VA-type liquid crystal technology.
  • the VA type liquid crystal technology solves the role-biasing method by dividing the primary colors of RGB (Red, Green, Blue, that is, red, green, and blue) into main sub-pixels, and giving different driving voltages through the spatial primary and secondary pixels.
  • RGB Red, Green, Blue
  • RGB Red, Green, Blue
  • driving voltages through the spatial primary and secondary pixels.
  • pixel design often needs to design metal traces or thin film transistor components to drive the sub-pixels, resulting in the sacrifice of the light-transmissive open area, affecting the panel penetration rate, directly causing the cost of the backlight module to be improved.
  • the present application provides a driving method of a display device executed by a computer device, which can reduce the difference in visual characters while improving the panel transmittance and reducing the cost of the backlight module.
  • a driving method of a display device proposed by the present application includes the following steps:
  • Receiving an image to be displayed acquiring a pixel signal of a pixel of the display panel, and performing a table lookup on the pixel signal to obtain a first driving signal of the sub-pixel;
  • the illuminating pixels are driven by the first luminance signal, and the other sub-pixels are driven by the pixel signals.
  • the relative positions of the illuminating pixels and the other sub-pixels in each array block are the same.
  • the dividing the display panel sub-pixel into a plurality of array blocks, and the step of selecting at least one sub-pixel in the selected block as the illuminating pixel comprises:
  • Two adjacent sub-pixels are used as one block, and any one of the sub-pixels in the selected block is used as a luminescence pixel.
  • the dividing the display panel sub-pixel into a plurality of array blocks, and the step of selecting at least one sub-pixel in the selected block as the illuminating pixel comprises:
  • the adjacent four sub-pixels are taken as one block, and any one of the sub-pixels in the selected block is used as the illuminating pixel.
  • the dividing the display panel sub-pixel into a plurality of array blocks, and the step of selecting at least one sub-pixel in the selected block as the illuminating pixel comprises:
  • the adjacent nine sub-pixels are used as one block, and the sub-pixels located at the center of the block are selected as illuminating pixels.
  • the calculating, by using the first driving signal of the sub-pixels in the same array block, the first luminance signal of the driving illuminating pixel is calculated by using the following formula:
  • L1, L3, L7, L9 represent first driving signals of four sub-pixels in a diagonal position
  • L2, L4, L6, L8 represent first driving signals of the other four sub-pixels adjacent to the sub-pixels at the center position of the block;
  • L5 denotes a first driving signal of the illuminating pixel
  • L denotes a first luminance signal to be calculated.
  • the application further provides a driving device for a display device, comprising:
  • a region dividing module dividing the display panel sub-pixel into a plurality of array blocks, and selecting at least one sub-pixel in each array block as a luminescent pixel;
  • a signal acquisition module receiving an image to be displayed, acquiring a pixel signal of a pixel of the display panel, and performing a table lookup on the pixel signal to obtain a first driving signal of the sub-pixel of each pixel;
  • a calculation module calculating, according to a first driving signal of the sub-pixels in each array block, a first brightness signal of driving the illuminating pixels in the array block;
  • the driving module driving the illuminating pixel with the first brightness signal, and driving the other sub-pixels with the pixel signal.
  • the relative positions of the illuminating pixels and the other sub-pixels in each array block are the same.
  • the area dividing module uses two adjacent sub-pixels as one block, and any one of the selected sub-pixels is used as the illuminating pixel.
  • the area dividing module uses four adjacent sub-pixels as one block, and any one of the selected sub-pixels is used as the illuminating pixel.
  • the area dividing module uses adjacent nine sub-pixels as one block, and selects a sub-pixel located at the center of the block as a luminescent pixel.
  • the calculation module calculates the first brightness signal by using the following formula:
  • L1, L3, L7, L9 represent first driving signals of four sub-pixels in a diagonal position
  • L2, L4, L6, L8 represent first driving signals of the other four sub-pixels adjacent to the sub-pixels at the center position of the block;
  • L5 denotes a first driving signal of the illuminating pixel
  • L denotes a first luminance signal to be calculated.
  • the present application also proposes a display device comprising the drive device and the drive panel of the display device as described above.
  • the present application divides a first pixel of a display panel into a plurality of blocks, a plurality of the block arrays are arranged, and at least one illuminating pixel for performing chromatic aberration compensation is selected in each block; and then from the received image Acquiring a first driving signal of the sub-pixel, the first driving signal is preset, and can be obtained by performing a look-up table when the acquiring is needed; and calculating, by using the first driving signal of the sub-pixel, the first brightness signal of the driving illuminating pixel, The visual character difference offset is reduced, and other sub-pixels in the same block are still driven by pixel signals.
  • 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 driving method of a liquid crystal display of the present application
  • FIG. 2 is a schematic diagram showing a first pixel signal distribution when an image is displayed on one frame
  • FIG. 3 is a schematic diagram showing distribution of a second driving signal in an image by using two frames of pictures
  • FIG. 4 is a schematic diagram showing a distribution of a first driving signal in an image by using two frames of pictures
  • FIG. 5 is a schematic diagram of an embodiment in which a first driving signal is used for a luminescent pixel according to a block setting
  • FIG. 6 is a schematic diagram of another embodiment when a first driving signal is used according to a block setting illuminating pixel
  • FIG. 7 is a schematic diagram of an embodiment in which a first driving signal is used when a luminescent pixel is arranged according to a block;
  • FIG. 8 is a schematic diagram showing a relative position of a specific position of a luminescent pixel and a sub-pixel in a block
  • FIG. 9 is a schematic diagram showing the relationship between weight ratio coefficients of an embodiment of a specific position pixel and a normal position pixel;
  • FIG. 10 is a functional block diagram of an embodiment of a driving device of a display device of the present application.
  • FIG. 11 is a functional block diagram of an embodiment of a display device of the present application.
  • first”, “second”, and the like in this application are used 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 driving method of a display device.
  • a driving method of the display device includes the following steps:
  • each pixel may include, for example, three sub-pixels, that is, RGB pixels.
  • the sub-pixel in this embodiment may be any one of RGB pixels. Rather, the sub-pixels of the pixels may also be combinations of other color pixels, such as a combination of RG, GB, or RB.
  • the pixel signal includes a first driving signal and a second driving signal.
  • the first driving signal is a driving signal of a low level
  • the second driving signal is a driving signal of a high level.
  • the driving method is applied to a liquid crystal display.
  • the panel driving signal is sequentially driven by the high and low voltage signals in sequence with the image frame.
  • Figure 2 uses one frame to display an image, and R means to drive the corresponding sub-pixels with pixel signals.
  • FIG. 3 and FIG. 4 show that one image is displayed by using two frames of pictures.
  • H indicates that the corresponding sub-pixel is driven by the second driving signal
  • L of FIG. 4 indicates that the corresponding sub-pixel is driven by the first driving signal.
  • the second driving signal RH/GH/BH and the first driving signal RL/GL/BL are preset high voltage driving signals and low voltage driving signals given in advance according to the RGB input signals, which are determined according to the viewing angle effect to be compensated.
  • the relevant data has been burned to the liquid crystal display during the production of the liquid crystal display.
  • LUT Look The Up Table, which displays the lookup table, is recorded in the hardware buffer.
  • the 8 bit drive signal is used to see that each R/G/B input signal input 0 to 255 corresponds to 256 high and low voltage signals. 3*256 pairs of high voltage signals RH/GH/BH and low voltage signals RL/GL/BL.
  • the display effect of the liquid crystal is determined by the driving of the first driving signal, the second driving signal, and the luminance signal of the backlight.
  • the luminance signal of the backlight is not changed, and only the panel driving signal is adjusted.
  • the present application divides a first pixel of a display panel into a plurality of blocks, a plurality of the block arrays are arranged, and at least one illuminating pixel for performing chromatic aberration compensation is selected at the same position of each block; Obtaining a first driving signal of the first pixel in the image, the first driving signal is preset, and can be obtained by performing a table lookup when the acquiring is needed; and calculating the driving illuminating pixel by using the first driving signal of the sub-pixel A luminance signal reduces the difference in visual character difference, and other sub-pixels in the same block are still driven by pixel signals.
  • 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 relative positions of the illuminating pixels and the other sub-pixels in each array block are the same.
  • the step of dividing a display panel sub-pixel into a plurality of array blocks, and selecting at least one sub-pixel in the selected block as a luminescence pixel comprises:
  • the adjacent two sub-pixels are one block, and any one of the selected sub-pixels is used as the illuminating pixel.
  • L indicates that the first driving signal is used
  • R indicates that the pixel signal is directly driven.
  • the sub-pixels of the display panel are driven by L and R at the same time, and one image is displayed by one frame.
  • two sub-pixels adjacent to each other in the horizontal direction are one block, and the entire display panel can be divided into a plurality of block arrays.
  • Sub-pixels of the same position in all the blocks are selected as illuminating pixels.
  • the two types of pixels are driven by the first luminance signal and the pixel signal, respectively.
  • the dividing the display panel sub-pixel into a plurality of array blocks, and the step of selecting at least one sub-pixel in the selected block as the illuminating pixel comprises:
  • the adjacent four sub-pixels are used as one block, and any one of the sub-pixels in the selected block is used as the illuminating pixel
  • L indicates that the first driving signal is used
  • R indicates that the pixel signal is directly driven.
  • the sub-pixels of the display panel are driven by L and R at the same time, and one image is displayed by one frame.
  • first pixels are used as one block, and four first pixels are located on four vertices of the square.
  • Sub-pixels of the same position in all the blocks are selected as illuminating pixels.
  • the two types of pixels are driven by the first luminance signal and the pixel signal, respectively.
  • the dividing the display panel sub-pixel into a plurality of array blocks, and the step of selecting at least one sub-pixel in the selected block as the illuminating pixel comprises:
  • the adjacent nine sub-pixels are used as one block, and the sub-pixels located at the center of the block are selected as illuminating pixels.
  • L indicates that the first driving signal is employed, and R indicates that the pixel signal is directly driven.
  • the sub-pixels of the display panel are driven by L and R at the same time, and one image is displayed by one frame.
  • nine adjacent first pixels are used as one block, and nine first pixels are located on four vertices of the square.
  • Sub-pixels of the same position in all the blocks are selected as illuminating pixels.
  • the two types of pixels are driven by the first luminance signal and the pixel signal, respectively.
  • the first luminance signal for driving the illuminating pixel according to the first driving signal of the non-emitting pixel in the same array block is calculated by the following formula:
  • L1, L3, L7, L9 represent first driving signals of four sub-pixels in a diagonal position
  • L2, L4, L6, L8 represent first driving signals of the other four sub-pixels adjacent to the sub-pixel at the center position of the block;
  • L5 denotes a first driving signal of the illuminating pixel
  • L denotes a first luminance signal to be calculated.
  • Figure 8 shows the relative positions of L1 - L9 in one block
  • Figure 9 shows the weight ratio coefficient relationship of all sub-pixels and illuminating pixels in the same block.
  • the first brightness signal is calculated by statistically all the sub-pixels in the unit need to be given a low voltage signal compensation and the real position influence of the corresponding position of the individual sub-pixels in the unit is weighted, so that the low brightness sub-
  • the compensation effect of the pixel signal can conform to the effect of the average required compensation signal of the unit, and the adjustment of the weight also reflects the sub-pixel gray scale signal that the sub-pixel position actually corresponds to the image.
  • the weight is given to 1, indicating that the influence of the actual position is the largest, and the first luminance signals of the four positions of the upper, lower, left and right are given a weight of 0.8, four corners.
  • the first luminance signal is given a secondary weight of 0.4, which can truly reflect the true representative signal that should be reflected in the display of the low gray level position, and can give a reasonable brightness distribution to the surrounding sub-pixels.
  • 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 first driving signal and the second driving signal of the panel are used to compensate and adjust the brightness of the backlight to reduce the difference between the high and low voltage driving signals of the panel. The resulting flicker.
  • 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 display device of the present application may be a liquid crystal display device, an OLED display device, or other display device, which may include a liquid crystal television, a computer liquid crystal display, a notebook computer, or the like.
  • the present application further provides a driving device for a liquid crystal display, including:
  • the area dividing module 10 dividing the display panel sub-pixel into a plurality of array blocks, and selecting at least one sub-pixel in each array block as the illuminating pixel;
  • the signal acquisition module 20 receiving an image to be displayed, acquiring a pixel signal of a pixel of the display panel, and performing a table lookup on the pixel signal to obtain a first driving signal of the sub-pixel of each pixel;
  • the calculating module 30 calculating, according to the first driving signal of the sub-pixels in each array block, a first brightness signal for driving the illuminating pixels;
  • the driving module 40 drives the illuminating pixel with the first brightness signal, and drives the other sub-pixels with the pixel signal.
  • the area dividing module 10 divides two adjacent sub-pixels into one block, and selects any one of the selected sub-pixels as a luminescent pixel.
  • the area dividing module 10 uses four adjacent sub-pixels as one block, and selects any one of the sub-pixels as the illuminating pixel.
  • the area dividing module 10 uses the adjacent nine sub-pixels as one block, and selects a sub-pixel located at the center of the block as a luminescence pixel.
  • the calculation module 30 calculates the first brightness signal by using the following formula:
  • L1, L3, L7, L9 represent first driving signals of four sub-pixels in a diagonal position
  • L2, L4, L6, L8 represent first driving signals of the other four sub-pixels adjacent to the sub-pixel at the center position of the block;
  • L5 denotes a first driving signal of the illuminating pixel
  • L denotes a first luminance signal to be calculated.
  • the present application further provides a display device including the driving device 100 and the display panel 200 of the display device.
  • the specific structure of the driving device of the display device refers to the above embodiment, because the display device adopts the above All the technical solutions of all the embodiments, therefore, at least have all the beneficial effects brought by the technical solutions of the above embodiments, and will not be further described herein.
  • the display device may be a tablet display, a television display, a computer display, or the like.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal Display Device Control (AREA)

Abstract

一种显示装置的驱动方法、装置及显示装置，其中显示装置的驱动方法包括：将显示面板子像素分成多个阵列区块，选定区块中至少一个子像素作为发光像素；接收待显示图像，获取像素的像素信号，对像素信号进行查表，得到各个像素的子像素的第一驱动信号；依据同一阵列区块中子像素的第一驱动信号计算驱动发光像素的第一亮度信号；对发光像素采用第一亮度信号进行驱动，对其他子像素采用像素信号进行驱动。

Description

显示装置的驱动方法、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的驱动方法、应用该驱动方法的装置及显示装置。
背景技术
现有的大尺寸液晶显示面板大多数采用负型VA（Vertical Alignment，垂直配向）液晶或IPS（In-Plane Switching，平面转换）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（Red、Green、Blue，即红色、绿色及蓝色）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的驱动方法，其可降低视角色差，同时提高面板穿透率并降低背光模组成本。
为实现上述目的，本申请提出的一种显示装置的驱动方法，包括以下步骤:
将显示面板子像素分成多个阵列区块，选定每一阵列区块中至少一个子像素作为发光像素；
接收待显示图像，获取显示面板像素的像素信号，对像素信号进行查表，得到子像素的第一驱动信号；
依据每一阵列区块中子像素的第一驱动信号计算该阵列区块中驱动发光像素的第一亮度信号；
对发光像素采用第一亮度信号进行驱动，对其他子像素采用像素信号进行驱动。
在一实施例中，每一阵列区块中发光像素与其他子像素的相对位置相同。
在一实施例中，所述将显示面板子像素分成多个阵列区块，选定区块中至少一个子像素作为发光像素的步骤包括：
将相邻两个子像素作为一个区块，选定区块中任意一个子像素作为发光像素。
在一实施例中，所述将显示面板子像素分成多个阵列区块，选定区块中至少一个子像素作为发光像素的步骤包括：
将相邻的四个子像素作为一个区块，选定区块中任意一个子像素作为发光像素。
在一实施例中，所述将显示面板子像素分成多个阵列区块，选定区块中至少一个子像素作为发光像素的步骤包括：
将相邻的九个子像素作为一个区块，选定位于区块中心的子像素作为发光像素。
在一实施例中，所述依据同一阵列区块中子像素的第一驱动信号计算驱动发光像素的第一亮度信号采用如下公式计算：
L= 1*L5+0.8*(L2+L4+L6+L8)+0.4*(L1+L3+L7+L9)；
其中， L1、L3、L7、L9表示处于对角位置的四个子像素的第一驱动信号；
L2、L4、L6、L8表示与处于区块中心位置的子像素相邻的另外四个子像素的第一驱动信号；
L5表示发光像素的第一驱动信号，L表示需要计算的第一亮度信号。
本申请还提出一种显示装置的驱动装置，包括：
区域划分模块：将显示面板子像素分成多个阵列区块，选定每一阵列区块中至少一个子像素作为发光像素；
信号获取模块：接收待显示图像，获取显示面板像素的像素信号，对像素信号进行查表，得到各个像素的子像素的第一驱动信号；
计算模块：依据每一阵列区块中子像素的第一驱动信号计算该阵列区块中驱动发光像素的第一亮度信号；
驱动模块：对发光像素采用第一亮度信号进行驱动，对其他子像素采用像素信号进行驱动。
在一实施例中，每一阵列区块中发光像素与其他子像素的相对位置相同。
在一实施例中，所述区域划分模块将相邻两个子像素作为一个区块，选定区块中任意一个子像素作为发光像素。
在一实施例中，所述区域划分模块将相邻的四个子像素作为一个区块，选定区块中任意一个子像素作为发光像素。
在一实施例中，所述区域划分模块将相邻的九个子像素作为一个区块，选定位于区块中心的子像素作为发光像素。
在一实施例中，所述计算模块采用如下公式计算第一亮度信号：
L= 1*L5+0.8*(L2+L4+L6+L8)+0.4*(L1+L3+L7+L9)；
其中， L1、L3、L7、L9表示处于对角位置的四个子像素的第一驱动信号；
L2、L4、L6、L8表示与处于区块中心位置的子像素相邻的另外四个子像素的第一驱动信号；
L5表示发光像素的第一驱动信号，L表示需要计算的第一亮度信号。
本申请还提出一种显示装置，所述显示装置包括如上所述的显示装置的驱动装置及驱动面板。
本申请通过将显示面板的第一像素分成多个区块，多个所述区块阵列排布，在每个区块选定至少一个用于进行色差补偿的发光像素；再从接收的图像中获取子像素的第一驱动信号，该第一驱动信号是预先设置好的，在需要获取时进行查表即可获得；通过子像素的第一驱动信号计算得到驱动发光像素的第一亮度信号，降低了视角色差偏移，同一区块内的其他子像素则仍采用像素信号进行驱动。
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步骤获得其他的附图。
图1为本申请液晶显示器的驱动方法一实施例的流程图；
图2为采用一帧画面显示一幅图像时的第一像素信号分布示意图；
图3为采用两帧画面显示一幅图像中的第二驱动信号分布示意图；
图4为采用两帧画面显示一幅图像中的第一驱动信号分布示意图；
图5为根据区块设置发光像素采用第一驱动信号时一实施例的示意图；
图6为根据区块设置发光像素采用第一驱动信号时另一实施例的示意图；
图7为根据区块设置发光像素采用第一驱动信号时在一实施例的示意图；
图8为区块中特定位置发光像素与子像素一实施例的相对位置示意图；
图9为特定位置像素与普通位置像素一实施例的权重比例系数关系示意图；
图10为本申请显示装置的驱动装置一实施例的功能模块图；
图11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，本申请实施例中所有方向性指示（诸如上、下、左、右、前、后……）仅用于解释在某一特定姿态（如附图所示）下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
另外，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的驱动方法。
参照图1，在本申请实施例中，该显示装置的驱动方法，包括以下步骤:
S100、将显示面板子像素分成多个阵列区块，选定每一阵列区块中至少一个子像素作为发光像素；
S200、接收待显示图像，获取显示面板像素的像素信号，对像素信号进行查表，得到各个像素的子像素的第一驱动信号；本实施例中，每一个像素可例如包括三个子像素，即RGB像素。本实施例中子像素可为RGB像素中任意一种。然不限于此，像素的子像素也可以是其他颜色像素的组合，例如RG、GB或RB两种像素的组合。
需要说明的是，像素信号包括有第一驱动信号及第二驱动信号，本实施例中，第一驱动信号为低电平的驱动信号，第二驱动信号为高电平的驱动信号。
S300、依据每一阵列区块中子像素的第一驱动信号计算该阵列区块中驱动发光像素的第一亮度信号；
S400、对发光像素采用第一亮度信号进行驱动，对其他子像素采用像素信号进行驱动。
需要说明的是，在申请实施例中，该驱动方法应用于液晶显示器上，现有技术里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。
其中，图2 用一帧画面来显示一幅图像，R 表示采用像素信号驱动对应的子像素。
图3和图4表示采用两帧画面显示一幅图像，图3中H表示采用第二驱动信号驱动对应的子像素，图4中L表示采用第一驱动信号驱动对应的子像素。
第二驱动信号RH/GH/BH与第一驱动信号RL/GL/BL，为事先根据RGB输入信号给予的预设高电压驱动信号和低电压驱动信号，是依照需要补偿的视角效果所决定，在液晶显示器生产时已经将相关数据烧录至液晶显示器里。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。
在液晶显示器中，液晶的显示效果是由第一驱动信号、第二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，背光源的亮度信号不作改变，仅在面板驱动信号作调整。
本申请通过将显示面板的第一像素分成多个区块，多个所述区块阵列排布，在每个区块的同一位置选定至少一个用于进行色差补偿的发光像素；再从接收的图像中获取第一像素的第一驱动信号，该第一驱动信号是预先设置好的，在需要获取时进行查表即可获得；通过子像素的第一驱动信号计算得到驱动发光像素的第一亮度信号，降低了视角色差偏移，同一区块内的其他子像素则仍采用像素信号进行驱动。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。
本实施例中，每一阵列区块中发光像素与其他子像素的相对位置相同。
根据一个阵列区块中子像素的个数，包括如下实施例：
参照图5，在一实施例中，所述将显示面板子像素分成多个阵列区块，选定区块中至少一个子像素作为发光像素的步骤包括：
将相邻两个子像素为一个区块，选定区块中任意一个子像素作为发光像素。
图5中，L表示采用第一驱动信号，R表示采用像素信号直接驱动。本申请实施例中，同时采用L和R对显示面板的子像素进行驱动，用一帧画面显示一幅图像。
这里，在水平方向上相邻两个子像素为一个区块，整个显示面板则可分成若干个区块阵列。选定所有区块中同一位置的子像素作为发光像素。依据两个子像素的第一驱动信号计算该发光像素的第一亮度信号。再分别采用第一亮度信号和像素信号对两种类型的像素进行驱动。
在另一实施例中，所述将显示面板子像素分成多个阵列区块，选定区块中至少一个子像素作为发光像素的步骤包括：
将相邻的四个子像素作为一个区块，选定区块中任意一个子像素作为发光像素
图6中，L表示采用第一驱动信号，R表示采用像素信号直接驱动。本申请实施例中，同时采用L和R对显示面板的子像素进行驱动，用一帧画面显示一幅图像。
这里以四个相邻的第一像素作为一个区块，四个第一像素位于正方形的四个顶点上。选定所有区块中同一位置的子像素作为发光像素。依据四个子像素的第一驱动信号计算该发光像素的第一亮度信号。再分别采用第一亮度信号和像素信号对两种类型的像素进行驱动。
在再一实施例中，所述将显示面板子像素分成多个阵列区块，选定区块中至少一个子像素作为发光像素的步骤包括：
将相邻的九个子像素作为一个区块，选定位于区块中心的子像素作为发光像素。
图7中，L表示采用第一驱动信号，R表示采用像素信号直接驱动。本申请实施例中，同时采用L和R对显示面板的子像素进行驱动，用一帧画面显示一幅图像。
这里以九个相邻的第一像素作为一个区块，九个第一像素位于正方形的四个顶点上。选定所有区块中同一位置的子像素作为发光像素。依据九个子像素的第一驱动信号计算该发光像素的第一亮度信号。再分别采用第一亮度信号和像素信号对两种类型的像素进行驱动。
在本实施例中，所述依据同一阵列区块中非发光像素的第一驱动信号计算驱动发光像素的第一亮度信号采用如下公式计算：
L= 1*L5+0.8*(L2+L4+L6+L8)+0.4*(L1+L3+L7+L9)；
其中， L1、L3、L7、L9表示处于对角位置的四个子像素的第一驱动信号；
L2、L4、L6、L8表示与处于区块中心位置子像素相邻的另外四个子像素的第一驱动信号；
L5表示发光像素的第一驱动信号，L表示需要计算的第一亮度信号。
参照图8和图9，图8表示在一个区块中L1~L9的相对位置，图9表示同一区块中所有的子像素与发光像素的权重比例系数关系。
需要说明的是，该第一亮度信号计算是统计该单位中理论上所有子像素需要给予低电压信号补偿及该单位中个别子像素相应位置的真实位置影响性予以权重调整，使得该低亮度子像素信号得补偿效果可以符合该单位平均所需补偿信号的效果，权重的调整亦反应出该子像素位置真实对应图像需要给予的子像素灰阶信号。
以九个子像素为一个单位举例，取代显示第一亮度信号位置的权重给予1,代表实际该位置的影响性是最大，上下左右四个位置的第一亮度信号给予次权重0.8，四个角落的第一亮度信号给予次权重0.4，这样即能真实的反应该显示低灰阶位置所应反应的真实代表信号，又能给予周围子像素合理的亮度分配。
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，配合面板第一驱动信号、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。
在一些实施例中，本申请的显示装置可为液晶显示装置、OLED显示装置或其他显示装置，其可包括液晶电视机、电脑液晶显示器、笔记本电脑等。
参照图10，基于上述液晶显示器的驱动方法，本申请还提出一种液晶显示器的驱动装置，包括：
区域划分模块10：将显示面板子像素分成多个阵列区块，选定每一阵列区块中至少一个子像素作为发光像素；
信号获取模块20：接收待显示图像，获取显示面板像素的像素信号，对像素信号进行查表，得到各个像素的子像素的第一驱动信号；
计算模块30：依据每一阵列区块中子像素的第一驱动信号计算驱动发光像素的第一亮度信号；
驱动模块40：对发光像素采用第一亮度信号进行驱动，对其他子像素采用像素信号进行驱动。
在一实施例中，所述区域划分模块10将相邻两个子像素为一个区块，选定区块中任意一个子像素作为发光像素。
在一实施例中，所述区域划分模块10将相邻的四个子像素作为一个区块，选定区块中任意一个子像素作为发光像素。
在一实施例中，所述区域划分模块10将相邻的九个子像素作为一个区块，选定位于区块中心的子像素作为发光像素。
在一实施例中，所述计算模块30采用如下公式计算第一亮度信号：
L= 1*L5+0.8*(L2+L4+L6+L8)+0.4*(L1+L3+L7+L9)；
其中， L1、L3、L7、L9表示处于对角位置的四个子像素的第一驱动信号；
L2、L4、L6、L8表示与处于区块中心位置子像素相邻的另外四个子像素的第一驱动信号；
L5表示发光像素的第一驱动信号，L表示需要计算的第一亮度信号。
参照图11，本申请还提出一种显示装置，该显示装置包括上述显示装置的驱动装置100及显示面板200，该显示装置的驱动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。
该显示装置可以是平板电脑显示屏、电视机显示屏、电脑显示屏等。
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 (14)

  1. 一种显示装置的驱动方法，包括以下步骤:
    将显示面板子像素分成多个阵列区块，选定每一阵列区块中至少一个子像素作为发光像素；
    接收待显示图像，获取显示面板像素的像素信号，对像素信号进行查表，得到子像素的第一驱动信号；
    依据每一阵列区块中子像素的第一驱动信号计算该阵列区块中驱动发光像素的第一亮度信号；
    对发光像素采用第一亮度信号进行驱动，对其他子像素采用像素信号进行驱动。
  2. 如权利要求1所述的显示装置的驱动方法，其中，每一阵列区块中发光像素与其他子像素的相对位置相同。
  3. 如权利要求1所述的显示装置的驱动方法，其中，所述将显示面板子像素分成多个阵列区块，选定区块中至少一个子像素作为发光像素的步骤包括：
    将相邻的四个子像素作为一个区块，选定区块中任意一个子像素作为发光像素。
  4. 如权利要求2所述的显示装置的驱动方法，其中，所述将显示面板子像素分成多个阵列区块，选定区块中至少一个子像素作为发光像素的步骤包括：
    将相邻的四个子像素作为一个区块，选定区块中任意一个子像素作为发光像素。
  5. 如权利要求1所述的显示装置的驱动方法，其中，所述将显示面板子像素分成多个阵列区块，选定区块中至少一个子像素作为发光像素的步骤包括：
    将相邻的九个子像素作为一个区块，选定位于区块中心的子像素作为发光像素。
  6. 如权利要求2所述的显示装置的驱动方法，其中，所述将显示面板子像素分成多个阵列区块，选定区块中至少一个子像素作为发光像素的步骤包括：
    将相邻的九个子像素作为一个区块，选定位于区块中心的子像素作为发光像素。
  7. 如权利要求1所述的显示装置的驱动方法，其中，所述依据同一阵列区块中子像素的第一驱动信号计算驱动发光像素的第一亮度信号采用如下公式计算：
    L= 1*L5+0.8*(L2+L4+L6+L8)+0.4*(L1+L3+L7+L9)；
    其中， L1、L3、L7、L9表示处于对角位置的四个子像素的第一驱动信号；
    L2、L4、L6、L8表示与处于区块中心位置的子像素相邻的另外四个子像素的第一驱动信号；
    L5表示发光像素的第一驱动信号，L表示需要计算的第一亮度信号。
  8. 一种显示装置的驱动装置，包括：
    区域划分模块，用于将显示面板子像素分成多个阵列区块，选定每一阵列区块中至少一个子像素作为发光像素；
    信号获取模块，用于接收待显示图像，获取显示面板像素的像素信号，对像素信号进行查表，得到各个像素的子像素的第一驱动信号；
    计算模块，用于依据每一阵列区块中子像素的第一驱动信号计算该阵列区块中驱动发光像素的第一亮度信号；
    驱动模块，用于对发光像素采用第一亮度信号进行驱动，对其他子像素采用像素信号进行驱动。
  9. 如权利要求8所述的显示装置的驱动装置，其中，每一阵列区块中发光像素与其他子像素的相对位置相同。
  10. 如权利要求8所述的显示装置的驱动装置，其中，所述区域划分模块将相邻的四个子像素作为一个区块，选定区块中任意一个子像素作为发光像素。
  11. 如权利要求8所述的显示装置的驱动装置，其中，所述区域划分模块将相邻的九个子像素作为一个区块，选定位于区块中心的子像素作为发光像素。
  12. 如权利要求9所述的显示装置的驱动装置，其中，所述区域划分模块将相邻的九个子像素作为一个区块，选定位于区块中心的子像素作为发光像素。
  13. 如权利要求8所述的显示装置的驱动装置，其中，所述计算模块采用如下公式计算第一亮度信号：
    L= 1*L5+0.8*(L2+L4+L6+L8)+0.4*(L1+L3+L7+L9)；
    其中， L1、L3、L7、L9表示处于对角位置的四个子像素的第一驱动信号；
    L2、L4、L6、L8表示与处于区块中心位置的子像素相邻的另外四个子像素的第一驱动信号；
    L5表示发光像素的第一驱动信号，L表示需要计算的第一亮度信号。
  14. 一种显示装置，包括：
    显示面板；
    驱动部件；以及
    如权利要求8所述的显示装置的驱动装置；所述显示装置的驱动装置包括：区域划分模块，用于将显示面板子像素分成多个阵列区块，选定每一阵列区块中至少一个子像素作为发光像素；
    信号获取模块，用于接收待显示图像，获取显示面板像素的像素信号，对像素信号进行查表，得到各个像素的子像素的第一驱动信号；
    计算模块，用于依据每一阵列区块中子像素的第一驱动信号计算该阵列区块中驱动发光像素的第一亮度信号；
    驱动模块，用于对发光像素采用第一亮度信号进行驱动，对其他子像素采用像素信号进行驱动。
    其中，所述计算模块采用如下公式计算第一亮度信号：
    L= 1*L5+0.8*(L2+L4+L6+L8)+0.4*(L1+L3+L7+L9)；
    其中， L1、L3、L7、L9表示处于对角位置的四个子像素的第一驱动信号；
    L2、L4、L6、L8表示与处于区块中心位置子像素相邻的另外四个子像素的第一驱动信号；
    L5表示发光像素的第一驱动信号，L表示需要计算的第一亮度信号。
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