CN110910846A - Display driving method and liquid crystal display device - Google Patents
Display driving method and liquid crystal display device Download PDFInfo
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- CN110910846A CN110910846A CN201911150482.8A CN201911150482A CN110910846A CN 110910846 A CN110910846 A CN 110910846A CN 201911150482 A CN201911150482 A CN 201911150482A CN 110910846 A CN110910846 A CN 110910846A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3607—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
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Abstract
本发明提供一种显示驱动方法及液晶显示装置。所述显示驱动方法包括如下步骤：提供一HG2D架构的液晶显示面板，设定液晶显示面板中同一列子像素中每相邻的2个子像素为一个显示单元；获取各个显示单元的原始灰阶值；对各个显示单元的原始灰阶值进行处理，产生各个显示单元的第一显示灰阶值及第二显示灰阶值；以各个显示单元的第一显示灰阶值和第二显示灰阶值分别驱动各个显示单元中的两个子像素进行显示，且使得液晶显示面板中任意相邻的两个子像素中的一个被其对应的显示单元的第一显示灰阶值驱动，另一个被其对应的显示单元的第二显示灰阶值驱动，通过HG2D架构搭配亮暗变化处理，能够保证子像素充电时间，改善大视角色偏，提升显示效果。
The present invention provides a display driving method and a liquid crystal display device. The display driving method includes the following steps: providing a liquid crystal display panel with an HG2D structure, setting every two adjacent sub-pixels in the same column of sub-pixels in the liquid crystal display panel as a display unit; obtaining original grayscale values of each display unit; Processing the original grayscale values of each display unit to generate the first display grayscale value and the second display grayscale value of each display unit; using the first display grayscale value and the second display grayscale value of each display unit respectively The two sub-pixels in each display unit are driven for display, and one of the two adjacent sub-pixels in the liquid crystal display panel is driven by the first display grayscale value of its corresponding display unit, and the other is driven by its corresponding display The second display grayscale value of the unit is driven, and the HG2D architecture is combined with light and dark change processing, which can ensure the charging time of the sub-pixels, improve the large viewing angle, and improve the display effect.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a display driving method and a liquid crystal display device.
Background
Liquid Crystal Displays (LCDs) have many advantages such as thin body, power saving, no radiation, and the like, and are widely used. Such as: liquid crystal televisions, mobile phones, Personal Digital Assistants (PDAs), digital cameras, computer screens, notebook computer screens, or the like, are dominant in the field of flat panel displays.
Because liquid crystal molecules have optical anisotropic characteristics, the existing liquid crystal display panel has the problems that the chromaticity and the visual angle are narrow, and the viewing experience of people under a large visual angle is influenced. In order to improve the narrow viewing angle of the chromaticity of the lcd panel, the prior art proposes a multi-domain pixel structure, in which each Sub-pixel is subdivided into a plurality of smaller domains, so that the liquid crystal in each domain is oriented in different directions, typically, for example, a four-domain structure, i.e., a pixel electrode of one Sub-pixel is made in a shape of a "m" and the pixel electrode is divided into four domains, and when driving, the liquid crystal in each domain is inverted in different directions, and further, the four-domain structure is improved, and further, an eight-domain structure is proposed, i.e., a pixel electrode of one Sub-pixel is firstly divided into a Main-region pixel electrode (Main) and a Sub-region pixel electrode (Sub), both the Main-region pixel electrode and the Sub-region pixel electrode are "m" and the driving voltages applied to the Main-region pixel electrode and the Sub-region pixel electrode are in a certain proportion, so that eight domains are formed in one sub-pixel;
with the development of display technology, the resolution and refresh rate of the lcd panel are higher and higher, the resolution is 8K, and the refresh rate is 120Hz, which is the mainstream in the future, for the lcd panel with the resolution of 8K and the refresh rate of 120Hz, the pixel number is greatly increased, but the refresh time of each frame is greatly reduced, which means that the charging time of each row of sub-pixels is greatly reduced, if the conventional pixel architecture of 1 row of sub-pixels, one scanning line, one row of sub-pixels and one data line is adopted, the charging time of each sub-pixel can not be ensured, thereby causing insufficient charging and causing picture abnormality, and the 4-domain pixel structure has a lower cost compared with the 8-domain pixel structure in terms of product cost, and meanwhile, the 4-domain pixel structure has a problem of serious color cast at a large viewing angle.
Disclosure of Invention
The invention aims to provide a display driving method which can guarantee the charging time of sub-pixels, improve the color cast of a large visual angle and improve the display effect.
The present invention is also directed to a liquid crystal display device, which can ensure the charging time of the sub-pixels, improve the color shift of the large viewing angle, and improve the display effect.
In order to achieve the above object, the present invention provides a display driving method, comprising the steps of:
step S1, providing a liquid crystal display panel, where the liquid crystal display panel includes a plurality of sub-pixels, a plurality of scan lines, and a plurality of data lines;
the multiple sub-pixels are arranged in an array, a scanning line electrically connected with the two rows of sub-pixels is arranged corresponding to every two adjacent rows of sub-pixels, two data lines are arranged corresponding to each column of sub-pixels, the 4i-3 th row and the 4i th row of the sub-pixels in the column are electrically connected with one data line, the 4i-2 th row and the 4i-1 th row of the sub-pixels in the column are electrically connected with the other data line, i is a positive integer, and the sub-pixels in the same column have the same color;
setting every adjacent 2 sub-pixels in the same column of sub-pixels in the liquid crystal display panel as a display unit;
step S2, acquiring the original gray scale value of each display unit;
step S3, processing the original gray scale value of each display unit to generate a first display gray scale value and a second display gray scale value of each display unit, wherein the first display gray scale value is larger than the second display gray scale value;
step S4, driving the two sub-pixels in each display unit to display according to the first display gray scale value and the second display gray scale value of each display unit, and driving one of any two adjacent sub-pixels in the liquid crystal display panel by the first display gray scale value of its corresponding display unit and driving the other by the second display gray scale value of its corresponding display unit.
The plurality of sub-pixels include: the pixel structure comprises a plurality of first sub-pixels, a plurality of second sub-pixels and a plurality of third sub-pixels, wherein the colors of the first sub-pixels, the second sub-pixels and the third sub-pixels are different; the sub-pixels positioned on the same row are alternately and repeatedly arranged according to the sequence of the first sub-pixel, the second sub-pixel and the third sub-pixel; each display unit includes 2 sub-pixels arranged consecutively in a column direction.
Each sub-pixel is a sub-pixel with a four-domain structure.
In the 4i-3 th row and the 4i th row of sub-pixels, every 4 sub-pixels which are continuously arranged form a group, and the polarity of the driving voltage of each sub-pixel in the same group is positive-negative-positive in sequence;
in the 4i-2 th row and the 4i-1 th row of sub-pixels, every 4 sub-pixels arranged in succession form one group, and the polarities of the drive voltages of the sub-pixels in the same group are negative-positive-negative in sequence.
The sum of the first display gray scale value and the second display gray scale value of each display unit is equal to 2 times of the original gray scale value of the display unit.
The present invention also provides a liquid crystal display device comprising: the device comprises an acquisition unit, a processing unit connected with the acquisition unit, a driving unit connected with the processing unit and a liquid crystal display panel connected with the driving unit;
the liquid crystal display panel comprises a plurality of sub-pixels, a plurality of scanning lines and a plurality of data lines; the multiple sub-pixels are arranged in an array, a scanning line electrically connected with the two rows of sub-pixels is arranged corresponding to every two adjacent rows of sub-pixels, two data lines are arranged corresponding to each column of sub-pixels, the 4i-3 th row and the 4i th row of the sub-pixels in the column are electrically connected with one data line, the 4i-2 th row and the 4i-1 th row of the sub-pixels in the column are electrically connected with the other data line, i is a positive integer, and the sub-pixels in the same column have the same color;
setting every adjacent 2 sub-pixels in the same column of sub-pixels in the liquid crystal display panel as a display unit;
the acquisition unit is used for acquiring the original gray scale value of each display unit;
the processing unit is used for processing the original gray scale value of each display unit to generate a first display gray scale value and a second display gray scale value of each display unit, and the first display gray scale value is larger than the second display gray scale value;
the driving unit is used for driving the two sub-pixels in each display unit to display by using the first display gray-scale value and the second display gray-scale value of each display unit, and enabling one of any two adjacent sub-pixels in the liquid crystal display panel to be driven by the first display gray-scale value of the corresponding display unit and the other to be driven by the second display gray-scale value of the corresponding display unit.
The plurality of sub-pixels include: the pixel structure comprises a plurality of first sub-pixels, a plurality of second sub-pixels and a plurality of third sub-pixels, wherein the colors of the first sub-pixels, the second sub-pixels and the third sub-pixels are different; the sub-pixels positioned on the same row are alternately and repeatedly arranged according to the sequence of the first sub-pixel, the second sub-pixel and the third sub-pixel; each display unit includes 2 sub-pixels arranged consecutively in a column direction.
Each sub-pixel is a sub-pixel with an eight-domain structure.
In the 4i-3 th row and the 4i th row of sub-pixels, every 4 sub-pixels which are continuously arranged form a group, and the polarity of the driving voltage of each sub-pixel in the same group is positive-negative-positive in sequence;
in the 4i-2 th row and the 4i-1 th row of sub-pixels, every 4 sub-pixels arranged in succession form one group, and the polarities of the drive voltages of the sub-pixels in the same group are negative-positive-negative in sequence.
The sum of the first display gray scale value and the second display gray scale value of each display unit is equal to 2 times of the original gray scale value of the display unit.
The invention has the beneficial effects that: the invention provides a display driving method, which comprises the following steps: providing a liquid crystal display panel, wherein the liquid crystal display panel comprises a plurality of sub-pixels, a plurality of scanning lines and a plurality of data lines; the multiple sub-pixels are arranged in an array, a scanning line electrically connected with the two rows of sub-pixels is arranged corresponding to every two adjacent rows of sub-pixels, two data lines are arranged corresponding to each column of sub-pixels, the 4i-3 th row and the 4i th row of the sub-pixels in the column are electrically connected with one data line, the 4i-2 th row and the 4i-1 th row of the sub-pixels in the column are electrically connected with the other data line, i is a positive integer, and the sub-pixels in the same column have the same color; setting every adjacent 2 sub-pixels in the same column of sub-pixels in the liquid crystal display panel as a display unit; acquiring an original gray scale value of each display unit; processing the original gray scale value of each display unit to generate a first display gray scale value and a second display gray scale value of each display unit, wherein the first display gray scale value is larger than the second display gray scale value; the first display gray scale value and the second display gray scale value of each display unit are used for respectively driving two sub-pixels in each display unit to display, one of any two adjacent sub-pixels in the liquid crystal display panel is driven by the first display gray scale value of the corresponding display unit, the other one of any two adjacent sub-pixels in the liquid crystal display panel is driven by the second display gray scale value of the corresponding display unit, and the HG2D is matched with brightness change processing, so that the charging time of the sub-pixels can be ensured, the large visual angle color cast is improved, and the display effect is improved. The invention also provides a liquid crystal display device, which can ensure the charging time of the sub-pixels, improve the color cast of a large visual angle and improve the display effect.
Drawings
For a better understanding of the nature and technical aspects of the present invention, reference should be made to the following detailed description of the invention, taken in conjunction with the accompanying drawings, which are provided for purposes of illustration and description and are not intended to limit the invention.
In the drawings, there is shown in the drawings,
FIG. 1 is a driving diagram of a display driving method according to the present invention;
FIG. 2 is a polarity diagram of a display driving method according to the present invention;
FIG. 3 is a flow chart of a display driving method according to the present invention;
FIG. 4 is a schematic view of a liquid crystal display device according to the present invention;
FIG. 5 is a diagram illustrating data signal transitions in a display driving method according to the present invention.
Detailed Description
To further illustrate the technical means and effects of the present invention, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Referring to fig. 3, the present invention provides a display driving method, including the following steps:
step S1, providing a liquid crystal display panel 10, where the liquid crystal display panel 10 includes a plurality of sub-pixels, a plurality of scan lines 21, and a plurality of data lines 22;
the multiple sub-pixels are arranged in an array, a scanning line 21 electrically connected with the two rows of sub-pixels is arranged corresponding to every two adjacent rows of sub-pixels, two data lines 22 are arranged corresponding to every column of sub-pixels, the sub-pixels in the 4i-3 th row and the 4i-1 th row in the column of sub-pixels are electrically connected with one data line 22, the sub-pixels in the 4i-2 th row and the 4i-1 th row in the column of sub-pixels are electrically connected with the other data line 22, i is a positive integer, and the sub-pixels in the same column have the same color;
setting every adjacent 2 sub-pixels in the same column of sub-pixels in the liquid crystal display panel 10 as a display unit 20;
specifically, as shown in fig. 1, in a preferred embodiment of the present invention, the plurality of sub-pixels in the liquid crystal display panel 10 include: a plurality of first subpixels 31, a plurality of second subpixels 32, and a plurality of third subpixels 33, wherein the first subpixels 31, the second subpixels 32, and the third subpixels 33 are different in color; the sub-pixels in the same row are alternately and repeatedly arranged according to the sequence of the first sub-pixel 31, the second sub-pixel 32 and the third sub-pixel 33, and the color of the sub-pixels in the same column is the same, wherein every two adjacent sub-pixels in a column of sub-pixels are a display unit 20, for example, the first sub-pixel 31 in the first row of the first column and the first sub-pixel 31 in the second row of the first column jointly form a display unit 20, the second sub-pixel 32 in the first row of the second column and the second sub-pixel 32 in the second row jointly form a display unit 20, the third sub-pixel 33 in the first row of the third column and the third sub-pixel 33 in the second row of the third column jointly form a display unit 20, the first sub-pixel 31 in the third row of the first column and the first sub-pixel 31 in the fourth row of the third column jointly form a display unit 20, the second sub-pixel 32 in the third row of the second column and the second sub-pixel 32 in the fourth row of the second column together form a display unit 20, the third sub-pixel 33 in the third row of the third column and the third sub-pixel 33 in the fourth row of the third column together form a display unit 20, and so on; the sub-pixels in the same display element 20 display the same color.
The liquid crystal display panel is of an HG2D pixel architecture, and during scanning, each scanning line scans two rows of sub-pixels, and at the same time, two scanning lines corresponding to each column of sub-pixels respectively charge the two rows of sub-pixels, so that the charging time of each sub-pixel is increased under the condition that the time of each frame of picture is not changed, and the charging effect of each sub-pixel is further ensured.
Preferably, the first sub-pixel 31, the second sub-pixel 32 and the third sub-pixel 33 display blue, green and red colors, respectively.
Specifically, in a preferred embodiment of the present invention, each of the plurality of sub-pixels in the liquid crystal display panel 10 is a sub-pixel having a four-domain structure, where each of the plurality of sub-pixels includes a pixel electrode, and the pixel electrode has a "m" -shaped pattern, so that liquid crystal in a region corresponding to the sub-pixel can fall down in four different directions, and compared with an eight-domain structure, the pattern of the sub-pixel having the four-domain structure is simpler and lower in cost.
Step S2, acquiring the original gray scale value of each display unit 20;
specifically, in the first embodiment of the present invention, each display unit 20 is supplied with one original gray-scale data through the external circuit, for example, each display unit 20 is supplied with one original gray-scale data of 100 gray-scales through the external circuit in one embodiment of the present invention.
Step S3, processing the original gray scale value of each display unit 20 to generate a first display gray scale value and a second display gray scale value of each display unit 20, where the first display gray scale value is greater than the second display gray scale value;
specifically, when the original gray-scale values of the display units 20 are processed in step S3, the sum of the first display gray-scale value and the second display gray-scale value of each display unit 20 is equal to 2 times of the original gray-scale value of the display unit 20, for example, a 150 gray-scale and a 50 gray-scale are formed corresponding to the 100 gray-scale in step S2.
Specifically, in the step S3, the selection of the specific values of the first display gray scale value and the second display gray scale value may be performed by searching through a preset lookup table, or may be performed by calculating through a preset processing function.
Step S4, driving the two sub-pixels in each display unit 20 respectively to display according to the first display gray scale value and the second display gray scale value of each display unit 20, and enabling one of any two adjacent sub-pixels in the liquid crystal display panel 10 to be driven by the first display gray scale value of the corresponding display unit 20 and the other to be driven by the second display gray scale value of the corresponding display unit 20.
It should be noted that, the two sub-pixels in each display unit 20 are respectively driven to display by the first display gray scale value and the second display gray scale value, so that the two sub-pixels in the same display unit 20 have different bright and dark states, and thus the liquid crystal in the regions corresponding to the two sub-pixels deflects to different directions, and meanwhile, after the two sub-pixels are combined, the luminance of the display unit 20 is the same as that of the original gray scale data, and on the premise of not changing the display luminance of the display picture, the orientations of the liquid crystal molecules are enriched, so that the chromaticity viewing angle of the liquid crystal display panel is improved, and the viewing experience of the liquid crystal display panel at a large viewing angle is improved.
The four-domain pixel structure is matched with a driving mode of light and dark changes, so that the cost is reduced, the large-visual-angle color cast is reduced, and the display effect is enhanced.
Further, in the step S4, when driving, the polarity distribution of the driving voltages of the sub-pixels in the liquid crystal display panel is set, specifically, the polarity distribution of the sub-pixels in the liquid crystal display panel is set to be 1+2line, that is, as shown in fig. 2, N is a positive integer, in the 4N-3 th sub-pixel and the 4N th sub-pixel, every 4 sub-pixels arranged consecutively are in one group, and the polarity of the driving voltages of the sub-pixels in the same group is sequentially positive-negative-positive; in the 4N-2 th row and the 4N-1 th sub-pixel, every 4 sub-pixels arranged in series are in one group, and the polarities of the driving voltages of the sub-pixels in the same group are sequentially negative-positive-negative.
As shown in fig. 5, the polarity distribution is collocated with the above bright and dark driving method, so as to avoid bad display such as moire or image flicker during driving, and ensure driving effect, and is embodied in that the bright and dark change of the Data signal (Data) and the positive and negative coupling of the common voltage (Vcom) can be mutually cancelled, for example, as shown in fig. 5, the Data line 22 on the left side of the first subpixel 31 of the first column is changed from the bright (H) of positive polarity (+) to the dark (L) of positive polarity (+) while the Data line 22 on the right side of the first subpixel 31 of the first column is changed from the dark (L) of negative polarity (-) to the bright (H) of negative polarity (-) and the Data signal voltage thereof is in a falling trend while the Data line 22 on the left side of the first subpixel 31 of the 4 th column is changed from the dark (L) of positive polarity (+) to the bright (H) of positive polarity (+), the data line on the right side of the first sub-pixel in the 4 th column changes from bright (H) with negative polarity (-) to dark (L) with negative polarity (-), the data signal voltages of the data lines tend to rise, the two can cancel each other out, and therefore vertical Crosstalk (H cross) is avoided, and the rest of the sub-pixels are the same.
Referring to fig. 4, the present invention further provides a liquid crystal display device, including: an acquisition unit 100, a processing unit 200 connected to the acquisition unit 100, a driving unit 300 connected to the processing unit 200, and a liquid crystal display panel 10 connected to the driving unit 300;
the liquid crystal display panel 10 includes a plurality of sub-pixels, a plurality of scan lines 21 and a plurality of data lines 22; the multiple sub-pixels are arranged in an array, a scanning line 21 electrically connected with the two rows of sub-pixels is arranged corresponding to every two adjacent rows of sub-pixels, two data lines 22 are arranged corresponding to every column of sub-pixels, the sub-pixels in the 4i-3 th row and the 4i-1 th row in the column of sub-pixels are electrically connected with one data line 22, the sub-pixels in the 4i-2 th row and the 4i-1 th row in the column of sub-pixels are electrically connected with the other data line 22, i is a positive integer, and the sub-pixels in the same column have the same color;
setting every adjacent 2 sub-pixels in the same column of sub-pixels in the liquid crystal display panel 10 as a display unit 20;
the acquiring unit 100 is configured to acquire an original gray scale value of each display unit 20;
the processing unit 200 is configured to process the original gray scale value of each display unit 20, and generate a first display gray scale value and a second display gray scale value of each display unit 20, where the first display gray scale value is greater than the second display gray scale value;
the driving unit 300 is configured to drive the two sub-pixels in each display unit to perform display by using the first display gray scale value and the second display gray scale value of each display unit 20, and enable one of any two adjacent sub-pixels in the liquid crystal display panel 10 to be driven by the first display gray scale value of the corresponding display unit 20, and the other to be driven by the second display gray scale value of the corresponding display unit 20.
Specifically, as shown in fig. 1, in a preferred embodiment of the present invention, the plurality of sub-pixels in the liquid crystal display panel 10 include: a plurality of first subpixels 31, a plurality of second subpixels 32, and a plurality of third subpixels 33, wherein the first subpixels 31, the second subpixels 32, and the third subpixels 33 are different in color; the sub-pixels in the same row are alternately and repeatedly arranged according to the sequence of the first sub-pixel 31, the second sub-pixel 32 and the third sub-pixel 33, and the color of the sub-pixels in the same column is the same, wherein every two adjacent sub-pixels in a column of sub-pixels are a display unit 20, for example, the first sub-pixel 31 in the first row of the first column and the first sub-pixel 31 in the second row of the first column jointly form a display unit 20, the second sub-pixel 32 in the first row of the second column and the second sub-pixel 32 in the second row jointly form a display unit 20, the third sub-pixel 33 in the first row of the third column and the third sub-pixel 33 in the second row of the third column jointly form a display unit 20, the first sub-pixel 31 in the third row of the first column and the first sub-pixel 31 in the fourth row of the third column jointly form a display unit 20, the second sub-pixel 32 in the third row of the second column and the second sub-pixel 32 in the fourth row of the second column together form a display unit 20, the third sub-pixel 33 in the third row of the third column and the third sub-pixel 33 in the fourth row of the third column together form a display unit 20, and so on; the sub-pixels in the same display element 20 display the same color.
The liquid crystal display panel is of an HG2D pixel architecture, and during scanning, each scanning line scans two rows of sub-pixels, and at the same time, two scanning lines corresponding to each column of sub-pixels respectively charge the two rows of sub-pixels, so that the charging time of each sub-pixel is increased under the condition that the time of each frame of picture is not changed, and the charging effect of each sub-pixel is further ensured.
Preferably, the first sub-pixel 31, the second sub-pixel 32 and the third sub-pixel 33 display blue, green and red colors, respectively.
Specifically, in a preferred embodiment of the present invention, each of the plurality of sub-pixels in the liquid crystal display panel 10 is a sub-pixel having a four-domain structure, where each of the plurality of sub-pixels includes a pixel electrode, and the pixel electrode has a "m" -shaped pattern, so that liquid crystal in a region corresponding to the sub-pixel can fall down in four different directions, and compared with an eight-domain structure, the pattern of the sub-pixel having the four-domain structure is simpler and lower in cost.
Specifically, in the first embodiment of the present invention, one piece of original grayscale data is supplied to each display cell 20 through an external circuit.
Specifically, when the original gray-scale values of the display units 20 are processed, the sum of the first display gray-scale value and the second display gray-scale value of each display unit 20 is equal to 2 times of the original gray-scale value of the display unit 20, for example, in an embodiment of the present invention, an original gray-scale data of 100 gray scales is provided to each display unit 20 through an external circuit, and the first display gray-scale value and the second display gray-scale value may be 150 gray scales and 50 gray scales, respectively.
Specifically, the selection of the specific values of the first display gray scale value and the second display gray scale value may be performed by searching through a preset lookup table, or may be performed by calculating through a preset processing function.
It should be noted that, the two sub-pixels in each display unit 20 are respectively driven to display by the first display gray scale value and the second display gray scale value, so that the two sub-pixels in the same display unit 20 have different bright and dark states, and thus the liquid crystal in the regions corresponding to the two sub-pixels deflects to different directions, and meanwhile, after the two sub-pixels are combined, the luminance of the display unit 20 is the same as that of the original gray scale data, and on the premise of not changing the display luminance of the display picture, the orientations of the liquid crystal molecules are enriched, so that the chromaticity viewing angle of the liquid crystal display panel is improved, and the viewing experience of the liquid crystal display panel at a large viewing angle is improved.
The four-domain pixel structure is matched with a driving mode of light and dark changes, so that the cost is reduced, the large-visual-angle color cast is reduced, and the display effect is enhanced.
Further, during driving, the polarity distribution of the driving voltage of each sub-pixel in the liquid crystal display panel is set, specifically, the polarity distribution of each sub-pixel in the liquid crystal display panel is set to be a distribution form of 1+2 lines, that is, as shown in fig. 2, N is a positive integer, in the 4N-3 th sub-pixel and the 4N th sub-pixel, every 4 sub-pixels arranged in succession are in one group, and the polarity of the driving voltage of each sub-pixel in the same group is sequentially positive-negative-positive; in the 4N-2 th row and the 4N-1 th sub-pixel, every 4 sub-pixels arranged in series are in one group, and the polarities of the driving voltages of the sub-pixels in the same group are sequentially negative-positive-negative.
As shown in fig. 5, the polarity distribution is collocated with the above bright and dark driving method, so as to avoid bad display such as moire or image flicker during driving, and ensure driving effect, and is embodied in that the bright and dark change of the Data signal (Data) and the positive and negative coupling of the common voltage (Vcom) can be mutually cancelled, for example, as shown in fig. 5, the Data line 22 on the left side of the first subpixel 31 of the first column is changed from the bright (H) of positive polarity (+) to the dark (L) of positive polarity (+) while the Data line 22 on the right side of the first subpixel 31 of the first column is changed from the dark (L) of negative polarity (-) to the bright (H) of negative polarity (-) and the Data signal voltage thereof is in a falling trend while the Data line 22 on the left side of the first subpixel 31 of the 4 th column is changed from the dark (L) of positive polarity (+) to the bright (H) of positive polarity (+), the data line on the right side of the first sub-pixel in the 4 th column changes from bright (H) with negative polarity (-) to dark (L) with negative polarity (-), the data signal voltages of the data lines tend to rise, the two can cancel each other out, and therefore vertical Crosstalk (H cross) is avoided, and the rest of the sub-pixels are the same.
In summary, the present invention provides a display driving method, which includes the following steps: providing a liquid crystal display panel, wherein the liquid crystal display panel comprises a plurality of sub-pixels, a plurality of scanning lines and a plurality of data lines; the multiple sub-pixels are arranged in an array, a scanning line electrically connected with the two rows of sub-pixels is arranged corresponding to every two adjacent rows of sub-pixels, two data lines are arranged corresponding to each column of sub-pixels, the 4i-3 th row and the 4i th row of the sub-pixels in the column are electrically connected with one data line, the 4i-2 th row and the 4i-1 th row of the sub-pixels in the column are electrically connected with the other data line, i is a positive integer, and the sub-pixels in the same column have the same color; setting every adjacent 2 sub-pixels in the same column of sub-pixels in the liquid crystal display panel as a display unit; acquiring an original gray scale value of each display unit; processing the original gray scale value of each display unit to generate a first display gray scale value and a second display gray scale value of each display unit, wherein the first display gray scale value is larger than the second display gray scale value; the first display gray scale value and the second display gray scale value of each display unit are used for respectively driving two sub-pixels in each display unit to display, one of any two adjacent sub-pixels in the liquid crystal display panel is driven by the first display gray scale value of the corresponding display unit, the other one of any two adjacent sub-pixels in the liquid crystal display panel is driven by the second display gray scale value of the corresponding display unit, and the HG2D is matched with brightness change processing, so that the charging time of the sub-pixels can be ensured, the large visual angle color cast is improved, and the display effect is improved. The invention also provides a liquid crystal display device, which can ensure the charging time of the sub-pixels, improve the color cast of a large visual angle and improve the display effect.
As described above, it will be apparent to those skilled in the art that other various changes and modifications may be made based on the technical solution and concept of the present invention, and all such changes and modifications are intended to fall within the scope of the appended claims.
Claims (10)
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111540334A (en) * | 2020-07-06 | 2020-08-14 | 成都中电熊猫显示科技有限公司 | Display control method, device, controller and storage medium |
| CN112102769A (en) * | 2020-10-28 | 2020-12-18 | 业成科技（成都）有限公司 | Display screen common voltage adjusting method and device, computer equipment and storage medium |
| CN113707065A (en) * | 2021-08-16 | 2021-11-26 | Tcl华星光电技术有限公司 | Display panel, driving method of display panel and electronic device |
| WO2022047900A1 (en) * | 2020-09-04 | 2022-03-10 | Tcl华星光电技术有限公司 | Display panel and driving method therefor |
| CN115542614A (en) * | 2022-08-30 | 2022-12-30 | 北京奕斯伟计算技术股份有限公司 | Driving method of display panel, driving chip of display panel and display device |
| WO2023015592A1 (en) * | 2021-08-13 | 2023-02-16 | Tcl华星光电技术有限公司 | Array substrate and display panel |
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| CN121483195A (en) * | 2025-12-31 | 2026-02-06 | 南京观海微电子有限公司 | A large line count liquid crystal display driving circuit and driving method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101216651A (en) * | 2008-01-16 | 2008-07-09 | 京东方科技集团股份有限公司 | Liquid crystal display device |
| CN103163697A (en) * | 2011-12-08 | 2013-06-19 | 上海天马微电子有限公司 | Pixel array structure |
| CN107689204A (en) * | 2017-10-12 | 2018-02-13 | 惠科股份有限公司 | Driving device and driving method of display panel and display device |
| CN207742919U (en) * | 2017-12-21 | 2018-08-17 | 惠科股份有限公司 | Liquid crystal display and driving circuit thereof |
| CN108831399A (en) * | 2018-07-25 | 2018-11-16 | 深圳市华星光电技术有限公司 | Display driving method and liquid crystal display device |
| CN109003587A (en) * | 2018-08-03 | 2018-12-14 | 深圳市华星光电半导体显示技术有限公司 | GOA circuit and HG2D dot structure with the GOA circuit |
| CN109346020A (en) * | 2018-11-26 | 2019-02-15 | 深圳市华星光电半导体显示技术有限公司 | Display driving method and liquid crystal display device |
| CN110264969A (en) * | 2019-06-03 | 2019-09-20 | 深圳市华星光电技术有限公司 | Display driving method and display device |
-
2019
- 2019-11-21 CN CN201911150482.8A patent/CN110910846A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101216651A (en) * | 2008-01-16 | 2008-07-09 | 京东方科技集团股份有限公司 | Liquid crystal display device |
| CN103163697A (en) * | 2011-12-08 | 2013-06-19 | 上海天马微电子有限公司 | Pixel array structure |
| CN107689204A (en) * | 2017-10-12 | 2018-02-13 | 惠科股份有限公司 | Driving device and driving method of display panel and display device |
| CN207742919U (en) * | 2017-12-21 | 2018-08-17 | 惠科股份有限公司 | Liquid crystal display and driving circuit thereof |
| CN108831399A (en) * | 2018-07-25 | 2018-11-16 | 深圳市华星光电技术有限公司 | Display driving method and liquid crystal display device |
| CN109003587A (en) * | 2018-08-03 | 2018-12-14 | 深圳市华星光电半导体显示技术有限公司 | GOA circuit and HG2D dot structure with the GOA circuit |
| CN109346020A (en) * | 2018-11-26 | 2019-02-15 | 深圳市华星光电半导体显示技术有限公司 | Display driving method and liquid crystal display device |
| CN110264969A (en) * | 2019-06-03 | 2019-09-20 | 深圳市华星光电技术有限公司 | Display driving method and display device |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111540334B (en) * | 2020-07-06 | 2020-10-23 | 成都中电熊猫显示科技有限公司 | Display control method, device, controller and storage medium |
| CN111540334A (en) * | 2020-07-06 | 2020-08-14 | 成都中电熊猫显示科技有限公司 | Display control method, device, controller and storage medium |
| US11626081B2 (en) | 2020-09-04 | 2023-04-11 | Tcl China Star Optoelectronics Technology Co., Ltd. | Display panel and driving method thereof |
| WO2022047900A1 (en) * | 2020-09-04 | 2022-03-10 | Tcl华星光电技术有限公司 | Display panel and driving method therefor |
| CN112102769A (en) * | 2020-10-28 | 2020-12-18 | 业成科技（成都）有限公司 | Display screen common voltage adjusting method and device, computer equipment and storage medium |
| CN112102769B (en) * | 2020-10-28 | 2022-09-20 | 业成科技（成都）有限公司 | Display screen common voltage adjusting method and device, computer equipment and storage medium |
| US12507477B2 (en) | 2021-08-13 | 2025-12-23 | Tcl China Star Optoelectronics Technology Co., Ltd. | Array substrate and display panel |
| WO2023015592A1 (en) * | 2021-08-13 | 2023-02-16 | Tcl华星光电技术有限公司 | Array substrate and display panel |
| CN113707065A (en) * | 2021-08-16 | 2021-11-26 | Tcl华星光电技术有限公司 | Display panel, driving method of display panel and electronic device |
| WO2023019602A1 (en) * | 2021-08-16 | 2023-02-23 | Tcl华星光电技术有限公司 | Display panel, driving method for display panel, and electronic apparatus |
| CN113707065B (en) * | 2021-08-16 | 2023-10-13 | Tcl华星光电技术有限公司 | Display panel, display panel driving method and electronic device |
| US12205511B2 (en) | 2021-08-16 | 2025-01-21 | Tcl China Star Optoelectronics Technology Co., Ltd. | Display panel, driving method thereof, and electronic device |
| CN115542614A (en) * | 2022-08-30 | 2022-12-30 | 北京奕斯伟计算技术股份有限公司 | Driving method of display panel, driving chip of display panel and display device |
| CN119923685A (en) * | 2023-07-20 | 2025-05-02 | 京东方科技集团股份有限公司 | An array substrate, a driving method thereof, a display panel and a display device |
| CN121483195A (en) * | 2025-12-31 | 2026-02-06 | 南京观海微电子有限公司 | A large line count liquid crystal display driving circuit and driving method |
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