CN111489713B - Pixel matrix driving device and display - Google Patents
Pixel matrix driving device and display Download PDFInfo
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- CN111489713B CN111489713B CN201910086880.1A CN201910086880A CN111489713B CN 111489713 B CN111489713 B CN 111489713B CN 201910086880 A CN201910086880 A CN 201910086880A CN 111489713 B CN111489713 B CN 111489713B
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- 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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Abstract
The invention discloses a pixel matrix driving device and a display, wherein the pixel matrix driving device comprises a pixel matrix, the pixel matrix comprises a plurality of pixel groups, the ith pixel group is configured with a first polarity mode, the (i + 1) th pixel group is configured with a second polarity mode, and the polarity arrangement modes of the first polarity mode and the second polarity mode are opposite. The pixel matrix comprises a plurality of pixel groups, and the polarity arrangement modes of two adjacent pixel groups are opposite, so that the flicker problem of the display panel can be improved, and the display effect of the display panel is improved.
Description
Technical Field
The invention belongs to the field of display, and particularly relates to a pixel matrix driving device and a display.
Background
With the development of Display technology, liquid Crystal Displays (LCDs) have the advantages of lightness, thinness and low radiation, and gradually replace Cathode Ray Tube (CRT) Display devices, and become the most common Display devices in information terminals such as computers, smart phones, mobile phones, car navigation devices, and electronic books.
As the display specification of the lcd is continuously developing towards large size, the market demands the lcd performance to pay more and more attention to the characteristics of high contrast, fast response, wide viewing angle, etc. In order to overcome the viewing angle problem of large-sized liquid crystal display panels, the wide viewing angle technology of liquid crystal display panels must be continuously improved and broken through. Polymer Stabilized vertical alignment liquid crystal (PSVA, polmer Stabilized vertical Aligned) is one of the wide viewing angle technologies currently widely used in liquid crystal display panels. At present, a PSVA type liquid crystal panel generally adopts a 4-Domain (4-Domain) VA design mode and an 8-Domain (8-Domain) VA design mode, wherein the 4-Domain (4-Domain) VA design mode has a relatively high aperture ratio, a white (washout) phenomenon occurs in the 4-Domain (4-Domain) VA design mode when a side view is viewed, and the white phenomenon becomes more serious as a viewing angle increases; the 8-Domain VA design has relatively good viewing angle characteristics, and the white phenomenon in the side view can be improved by matching with ELCS (Electrical Low Color Shift).
However, the 8-Domain VA with ELCS design can cause the display panel to have a flicker problem, thereby affecting the display effect of the display panel.
Disclosure of Invention
In order to solve the above problems in the prior art, the present invention provides a pixel matrix driving device and a display. The technical problem to be solved by the invention is realized by the following technical scheme:
the embodiment of the invention provides a pixel matrix driving device, which comprises a pixel matrix, wherein the pixel matrix comprises a plurality of pixel groups, the ith pixel group is configured with a first polarity mode, the (i + 1) th pixel group is configured with a second polarity mode, and the polarity arrangement modes of the first polarity mode and the second polarity mode are opposite.
In one embodiment, the pixel group includes a plurality of sub-pixels to which polarities are alternately applied in a first sub-polarity manner and a second sub-polarity manner at predetermined intervals in a data line direction.
In one embodiment, the polarity of the jth row of sub-pixels is opposite to the polarity of the j +2N row of sub-pixels.
In a specific embodiment, the voltage loading mode of the ith pixel group and the (i + 1) th pixel group is the same.
In one embodiment, the display device further comprises a timing controller, a data driving module and a scan driving module, wherein,
the time sequence controller is used for acquiring an initial pixel value and obtaining a first gray scale value and a second gray scale value according to the initial pixel value;
the data driving module is used for loading voltage to the pixel group by alternately loading a first loading voltage or a second loading voltage along the direction of the data line according to a first set interval;
and the scanning driving module is used for alternatively loading the voltage to the pixel group by the first loading voltage or the second loading voltage according to a second set interval along the direction of the scanning line.
An embodiment of the present invention further provides a display, including a pixel matrix driving device, where the pixel matrix driving device includes a pixel matrix, and the pixel matrix includes a plurality of pixel groups, where an i-th pixel group is configured with a first polarity manner, an i + 1-th pixel group is configured with a second polarity manner, and a polarity arrangement manner of the first polarity manner is opposite to a polarity arrangement manner of the second polarity manner.
In one embodiment, the pixel group includes a plurality of sub-pixels, and polarities are alternately applied to the pixel group in a first sub-polarity manner and a second sub-polarity manner at predetermined intervals in a data line direction.
In one embodiment, the j row sub-pixels and the j +2N row sub-pixels have opposite polarities.
In a specific embodiment, the voltage loading mode of the ith pixel group and the (i + 1) th pixel group is the same.
The invention also provides a display which comprises the array substrate.
Compared with the prior art, the invention has the following beneficial effects:
the pixel matrix comprises a plurality of pixel groups, and the polarity arrangement modes of two adjacent pixel groups are opposite, so that the flicker problem of the display panel can be improved, and the display effect of the display panel is improved.
Drawings
Fig. 1 is a schematic structural diagram of a pixel matrix according to an embodiment of the invention;
fig. 2 is a schematic structural diagram of another pixel matrix according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another pixel matrix according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a display panel with bright and dark effects according to the prior art;
fig. 5 is a schematic circuit diagram of a sub-pixel according to an embodiment of the present invention;
fig. 6 is a schematic diagram illustrating bright and dark effect display of a display panel according to an embodiment of the present invention;
FIG. 7 is a schematic diagram illustrating a variation trend of luminance along a scan line according to an embodiment of the present invention;
fig. 8 is a schematic diagram of a pixel matrix driving apparatus according to an embodiment of the invention.
Detailed Description
The present invention will be described in further detail with reference to specific examples, but the embodiments of the present invention are not limited thereto.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "left," "right," and the like are for purposes of illustration only and do not denote a single embodiment.
Example one
Referring to fig. 1, fig. 1 is a schematic structural diagram of a pixel matrix according to an embodiment of the invention. The embodiment of the invention provides a pixel matrix driving device, which comprises a pixel matrix, wherein the pixel matrix comprises a plurality of pixel groups, the ith pixel group is configured with a first polarity mode, the (i + 1) th pixel group is configured with a second polarity mode, the polarity arrangement modes of the first polarity mode and the second polarity mode are opposite, and i is a positive integer larger than 0.
Specifically, the pixel matrix includes a plurality of pixel groups, each pixel group includes Q columns of sub-pixels, wherein the polarity arrangement of two adjacent pixel groups is opposite, that is, if the ith pixel group is configured with the first polarity manner, the i +1 th pixel group is configured with the second polarity manner, and the first polarity manner is opposite to the polarity arrangement of the second polarity manner, that is, the polarity of the sub-pixel in the x-th row and the y-th column in the ith pixel group is opposite to the polarity of the sub-pixel in the x-th row and the y-th column in the i +1 th pixel group, for example, referring to fig. 1, the pixel matrix includes three pixel groups in total, each pixel group includes N6 sub-pixels, wherein the polarity arrangement of the first row of the 1-th pixel group A1 is + - + -5754 zx5754, the polarity arrangement of the first row of the 2-pixel group A2 is + - + 3252- + -3552, + 3-xft pixels, and the polarity arrangement of the first row is an integer 3532-zft, and so on.
The pixel matrix comprises a plurality of pixel groups, and the polarity arrangement modes of two adjacent pixel groups are opposite, so that the flicker problem of the display panel can be improved, and the display effect of the display panel is improved.
In one embodiment, the pixel groups each include a plurality of sub-pixels to which polarities are alternately applied in a first sub-polarity manner and a second sub-polarity manner at predetermined intervals in a data line direction.
In this embodiment, the predetermined interval is set according to actual needs, and this embodiment is not particularly limited.
Specifically, each pixel group includes P × Q sub-pixels, and the predetermined interval is set to K 1 Sub-pixels in one pixel group at every K along the data line direction 1 And the sub-pixels apply polarities to the sub-pixels of the pixel group alternately in a first sub-polarity mode and a second sub-polarity mode, wherein the first sub-polarity mode and the second sub-polarity mode are polarities correspondingly applied to the pixel group, if the polarities correspondingly applied to the sub-pixels in the first sub-polarity mode are positive, the polarities correspondingly applied to the sub-pixels in the second sub-polarity mode are negative, and if the polarities correspondingly applied to the sub-pixels in the first sub-polarity mode are negative, the polarities correspondingly applied to the sub-pixels in the second sub-polarity mode are positive, namely in one pixel group, the polarities applied to the sub-pixels from the 1 st column of sub-pixels to the Kth column of sub-pixels are positive 1 The polarity corresponding to the column sub-pixel is the first sub-polarity type, then the Kth sub-pixel 1 +1 column sub-pixels to 2K 1 The corresponding polarity of the column sub-pixels is the second sub-polarity mode, 2K 1 +1 column sub-pixels to 3K 1 The polarity corresponding to the column sub-pixel is the first sub-polarity mode, and so on, where K is 1 Is a positive integer greater than 0.
For example, referring to fig. 1 again, the predetermined interval of the pixel matrix is one sub-pixel, and each pixel group includes N × 6 sub-pixels, then for the 1 st pixel group A1, the polarities of the 1 st column of sub-pixels are all positive, the polarities of the 2 nd column of sub-pixels are all negative, the polarities of the 3 rd column of sub-pixels are all positive, the polarities of the 4 th column of sub-pixels are all negative, and so on; for the 2 nd pixel group A2, the polarities of the sub-pixels in the 1 st column are all negative, and the polarities of the sub-pixels in the 2 nd column are all positiveThe polarities of the sub-pixels in the 3 rd column are all negative polarities, the polarities of the sub-pixels in the 4 th column are all positive polarities, and the like; for the 3 rd pixel group A3, the polarities of the sub-pixels in the 1 st column are all positive, the polarities of the sub-pixels in the 2 nd column are all negative, the polarities of the sub-pixels in the 3 rd column are all positive, the polarities of the sub-pixels in the 4 th column are all negative, and so on, where K is 1 Is a positive integer greater than 0.
The embodiment of the invention periodically applies the polarity to the sub-pixels corresponding to the pixel groups in a first sub-polarity mode and a second sub-polarity mode along the direction of the data line for each pixel group in the pixel matrix, and simultaneously the polarity arrangement modes of two adjacent pixel groups in the pixel matrix are opposite, so that the white-out phenomenon of the display panel in side view can be improved, the flicker problem of the display panel can be improved, the display effect of the display panel is improved, and the quality of the display panel is improved.
The polarity arrangement modes of two adjacent pixel groups are opposite, so that the temperature and the power consumption of a Chip On Flex (Chip On film) are greatly reduced.
In one embodiment, the polarity of the jth row of sub-pixels is opposite to the polarity of the j +2N row of sub-pixels.
Specifically, the polarities of all the sub-pixels in the j-th row of sub-pixels are opposite to the polarities of all the sub-pixels at corresponding positions in the j + 2N-th row of sub-pixels, that is, the polarities of the sub-pixels in the j + 2N-th row are the same as those of the sub-pixels in the j + 2N-th row, the polarities of the sub-pixels in the j + 2N-th row are opposite to those of the sub-pixels in the j + 2N-th row, and the polarities of the sub-pixels in the j + 2N-th row to the sub-pixels in the j + (4N-1) th row are the same as those of the sub-pixels in the j + 2N-th row, for example, the polarities of the sub-pixels in the j + 2N-th row to the sub-pixels in the j + (2N-1) th row are + - + -5262 zft 5262, the polarities of the sub-pixels in the j + 4N-1-th row are + (4N-1) th row 3763, and the polarities of the sub-pixels in the j + 4N-1-th row are larger than the polarities of the positive zft 3763.
For example, referring to fig. 2, the pixel matrix includes 9*5 sub-pixels, and N =1, wherein the polarity arrangement of every two rows of sub-pixels is inverted once, specifically, the polarity arrangement of the 1 st row of sub-pixels corresponding to the scan line G1 and the 2 nd row of sub-pixels corresponding to the scan line G2 are both + - + - -, the polarity arrangement of the 3 rd row of sub-pixels corresponding to the scan line G3 and the polarity arrangement of the 4 th row of sub-pixels corresponding to the scan line G4 are both- + - + -, and the polarity arrangement of the 5 th row of sub-pixels corresponding to the scan line G5 is + - + -.
Specifically, the second predetermined interval is set to K 2 Sub-pixels in one pixel group at every K along the scanning line direction 2 Sub-pixels for alternately applying a first sub-polarity pattern and a second sub-polarity pattern to the sub-pixels of the pixel groups, i.e., the 1 st to Kth rows of sub-pixels in one pixel group 2 The polarity corresponding to the row sub-pixel is the first sub-polarity type, then the Kth 2 +1 row sub-pixels to 2K 2 The polarity corresponding to the row sub-pixel is the second sub-polarity mode, 2K 2 +1 row of sub-pixels to 3K 2 The polarity corresponding to the row of sub-pixels is the first sub-polarity pattern, and so on.
For example, referring to fig. 2, the second predetermined interval of the pixel matrix is two sub-pixels, and each pixel group includes 9*5 sub-pixels, the polarity of the sub-pixels in the 1 st row is positive, the polarity of the sub-pixels in the 2 nd column is negative, the polarity of the sub-pixels in the 3 rd column is positive, the polarity of the sub-pixels in the 4 th column is negative, and so on; for the 2 nd pixel group A2, the polarities of the sub-pixels in the 1 st column are all negative, the polarities of the sub-pixels in the 2 nd column are all positive, the polarities of the sub-pixels in the 3 rd column are all negative, the polarities of the sub-pixels in the 4 th column are all positive, and so on; for the 3 rd pixel group A3, the polarities of the sub-pixels in the 1 st column are all positive, the polarities of the sub-pixels in the 2 nd column are all negative, the polarities of the sub-pixels in the 3 rd column are all positive, the polarities of the sub-pixels in the 4 th column are all negative, and so on.
In the embodiment of the present invention, a polarity inversion manner is performed every 2N rows of sub-pixels, so that the polarity inversion positions are all at the pixel positions in the same row, thereby improving the crosstalk problem, and simultaneously, the polarity arrangement manner of two adjacent pixel groups in the pixel matrix is set to be opposite, and for each pixel group, the polarity is periodically and alternately applied to the sub-pixels corresponding to the pixel group in a first sub-polarity manner and a second sub-polarity manner along the data line direction, and a column inversion manner of the polarity is implemented in one pixel group, thereby not only solving the crosstalk problem easily occurring in the display panel, but also improving the flicker problem occurring in the display panel, thereby improving the display effect of the display panel, and improving the quality of the display panel.
In a specific embodiment, the voltage loading mode of the ith pixel group and the (i + 1) th pixel group is the same.
Specifically, for a pixel matrix, each sub-pixel needs to be loaded with voltages of different magnitudes according to the displayed brightness, in this embodiment, the voltage loading manners of two adjacent pixel groups are set to be the same, that is, if the voltage loaded by the sub-pixel in the x-th row and the y-th column in the i-th pixel group is a high voltage, the voltage loaded by the sub-pixel in the x-th row and the y-th column in the i + 1-th pixel group is also a high voltage, and if the voltage loaded by the sub-pixel in the x-th row and the y-th column in the i-th pixel group is a low voltage, the voltage loaded by the sub-pixel in the x-th row and the y-th column in the i + 1-th pixel group is also a low voltage.
In one embodiment, referring to fig. 8, the pixel matrix driving device further includes a timing controller, a data driving module and a scan driving module, wherein,
the time sequence controller is used for acquiring an initial pixel value and obtaining a first gray scale value and a second gray scale value according to the initial pixel value;
the data driving module is used for loading voltage to the pixel group by alternately loading a first loading voltage or a second loading voltage along the direction of the data line according to a first set interval;
and the scanning driving module is used for alternatively loading the voltage to the pixel group by the first loading voltage or the second loading voltage according to a second set interval along the direction of the scanning line.
Specifically, the timing controller is configured to obtain an initial pixel value, form a first gray scale value and a second gray scale value according to the initial pixel value, make pixel gray scales of the first gray scale value and the second gray scale value different, generate a first loading voltage according to the first gray scale value, and generate a second loading voltage according to the second gray scale value.
The timing controller is specifically configured to obtain an initial pixel value of each sub-pixel, and convert the initial pixel value of each sub-pixel into a first gray-scale value or a second gray-scale value according to a preset rule. The preset rule is that the initial pixel value is converted into a first gray scale value or a second gray scale value according to the loading voltage loaded on each sub-pixel, namely when the voltage loaded on the sub-pixel is the first loading voltage, the initial pixel value of the sub-pixel is converted into the first gray scale value according to the preset rule, and when the voltage loaded on the sub-pixel is the second loading voltage, the initial pixel value of the sub-pixel is converted into the second gray scale value according to the preset rule, and the converted gray scale values are transmitted to the data driving module and the scanning driving module.
After determining the rule for applying voltage to each sub-pixel position according to this embodiment, the timing controller correspondingly adjusts the initial pixel value of the sub-pixel position to be a low gray-scale value or a high gray-scale value, that is, the high gray-scale value corresponds to a first gray-scale value, the low gray-scale value corresponds to a second gray-scale value, and sends the adjusted gray-scale value to the driving module, and the data driving module and the scan driving module output corresponding voltages according to the gray-scale values, that is, output a first applying voltage according to the first gray-scale value to be applied to the corresponding sub-pixel position, and output a second applying voltage according to the second gray-scale value to be applied to the corresponding sub-pixel position.
The first gray scale value is regarded as a low gray scale value, the second gray scale value is regarded as a high gray scale value, correspondingly, the voltage input to the sub-pixel is determined by the gray scale, and a high gray scale voltage corresponding to the high gray scale value, namely a first loading voltage, is generated; the low gray scale voltage corresponding to the low gray scale value, i.e. the second loading voltage, is worth mentioning that the high gray scale value and the low gray scale value represent relative values of two gray scale values, and the magnitude of the values is not limited separately.
The data driving module is used for providing data signals for the corresponding sub-pixel driving circuits, and the scanning driving module is used for providing scanning signals for the corresponding sub-pixel driving circuits.
Further, alternately applying a voltage to the pixel group with the first applied voltage or the second applied voltage at a first set interval along the direction of the data line;
and alternately applying the voltage to the pixel group by the first applied voltage or the second applied voltage at a second set interval along the scanning line direction.
For convenience of description, each sub-pixel is marked, and it is set that each pixel group includes P × Q sub-pixels, and the sub-pixel in the M-th column and the N-th row in the pixel group is marked as a M,N For example, the 1 st column and 1 st row sub-pixel is denoted as A 1,1 。
Specifically, in one frame, for a certain row of sub-pixels in one pixel group, for example, the m-th row of sub-pixels, along the data line direction from the sub-pixel a m1 To the sub-pixel A mY And alternately loading the first loading voltage or the second loading voltage on the corresponding sub-pixel according to a first set interval, if the first set interval is three sub-pixels, the voltage loaded on the sub-pixel is converted from the first loading voltage to the second loading voltage or from the second loading voltage to the first loading voltage at every three sub-pixels, for example, the voltage is applied to the sub-pixel A m1 To the sub-pixel A m3 Is a first loading voltage, is applied to the sub-pixel A m4 To sub-pixel A m6 Is a second loading voltage, is applied to the sub-pixel A m7 To the sub-pixel A m9 Is the first loading voltage, and so on; for a column of sub-pixels in a pixel group, for example, the nth column of sub-pixels, along the scanning line direction from the sub-pixel A 1n To the sub-pixel A Xn And alternately loading the first loading voltage or the second loading voltage on the corresponding sub-pixel according to a second set interval, if the second set interval is two sub-pixels, every two sub-pixels, the voltage loaded on the sub-pixel is converted from the first loading voltage to the second loading voltage or from the second loading voltage to the first loading voltage, for example, the voltage is applied to the sub-pixel A 1n And a sub-pixel A 2n Is a first loading voltage, is applied to the sub-pixel A 3n And a sub-pixel A 4n Is a second loading voltage, is applied to the sub-pixel A 5n And a sub-pixel A 6n Is the first applied voltage, and so on. Meanwhile, the voltage loading mode of the rest pixel groups of the pixel matrix is the same as that of the pixel group.
For example, referring to fig. 3, for the pixel group A1, along the data line direction, when the first set interval is one sub-pixel, for the sub-pixel of the 1 st row, the data line D1 connects the sub-pixels a 11 Sub-pixel A 11 The corresponding voltage is the first loading voltage, and the data line D2 is connected with the sub-pixel A 12 Sub-pixel A 12 The corresponding voltage is the second loading voltage, and the data line D3 is connected with the sub-pixel A 13 Sub-pixel A 13 The corresponding voltage is the first loading voltage, and the data line D4 is connected with the sub-pixel A 14 Sub-pixel A 14 The corresponding voltage is the second loading voltage, and the data line D5 is connected with the sub-pixel A 15 Sub-pixel A 15 The corresponding voltage is the first loading voltage, and the data line D6 is connected with the sub-pixel A 16 Sub-pixel A 16 The corresponding voltage is a second loading voltage, namely, the first loading voltage or the second loading voltage is alternatively and correspondingly loaded on the sub-pixels every other sub-pixel along the direction of the data line; when the second set interval is one sub-pixel along the scanning line direction, the scanning line GN-4 connects the sub-pixels A for the 1 st column of sub-pixels 11 Sub-pixel A 11 The corresponding voltage is the first loading voltage, and the scanning line GN-3 is connected with the sub-pixel A 21 Sub-pixel A 21 The corresponding voltage is the second loading voltage, and the scanning line GN-2 is connected with the sub-pixel A 31 Sub-pixel A 31 The corresponding voltage is the first loading voltage, and the scanning line GN-1 is connected with the sub-pixel A 41 Sub-pixel A 41 The corresponding voltage is the second loading voltage, and the scanning line GN is connected with the sub-pixel A 51 Sub-pixel A 51 The corresponding voltage is the first loading voltage, and the scanning line GN +1 is connected with the sub-pixel A 61 Sub-pixel A 61 The corresponding voltage is the second loading voltage, namely, every other sub-pixel along the direction of the data line is loaded with the first loading voltage or the second loading voltage alternatelyVoltage to the sub-pixel; meanwhile, the voltage loading manner of the pixel group A2 of the pixel matrix is the same as that of the pixel group A1.
In this embodiment, the first setting interval and the second setting interval are set according to actual needs, and this embodiment is not particularly limited.
On the basis of the pixel matrix obtained in the embodiment, different sub-pixels of the pixel matrix are loaded with voltages by the first loading voltage and the second loading voltage, so that the white phenomenon of the display panel can be improved; the voltage loading modes of two adjacent pixel groups are the same, and the polarity arrangement modes of the two adjacent pixel groups in the pixel matrix are set to be opposite, so that the flicker problem of the display panel is solved.
To further illustrate the effect of the embodiments of the present invention on solving the crosstalk problem, please refer to fig. 4, for the currently commonly used polarity inversion driving method, the display effect is affected by the brightness of the display area being too bright or too dark. For the pixel group of this embodiment, referring to fig. 3, the voltage of the scan line GN-4 is:
VRHc(+)_ GN-4 ＝VRH(+)_ GN-4 +[(V D1pp )*(C dpL /C st )+(V D1pp )*(C dpR /C st )]
the voltages for scan line GN-3 are:
VRHc(+)_ GN-3 ＝VRH(+)_ GN-3 +[(V D1pp )*(C dpL /C st )+(V D1pp )*(C dpR /C st )]
the voltages for scan line GN-2 are:
VRHc(-)_ GN-2 ＝VRH(-)_ GN-2 +[(V D1pp )*(C dpL /C st )+(V D1pp )*(C dpR /C st )]
the voltages for scan line GN-1 are:
VRHc(-)_ GN-1 ＝VRH(-)_ GN-1 +[(V D1pp )*(C dpL /C st )+(V D1pp )*(C dpR /C st )]
wherein, VRHc (+) \ u GN-4 The voltage VRHc (+) _of the pixel at the position of the scanning line GN-4 after the capacitive coupling effect GN-3 The voltage VRHc (+) _of the pixel at the position of the scanning line GN-3 after the capacitive coupling effect GN-2 The voltage VRHc (+) _of the pixel at the position of the scanning line GN-2 after the capacitive coupling effect GN-1 VRH (+) _is the voltage of the pixel at the position of the scanning line GN-1 after the capacitive coupling effect GN-4 VRH (+) _is the voltage of the pixel at the location of scan line GN-4 before the pixel experiences the capacitive coupling effect GN-3 VRH (+) _, the voltage before the pixel at the location of scan line GN-3 via capacitive coupling effect GN-2 VRH (+) _is the voltage of the pixel at the location of scan line GN-2 before the pixel experiences the capacitive coupling effect GN-1 Is the voltage, V, of the pixel at the location of scan line GN-1 before the capacitive coupling effect D1pp When the voltage change of the data line is shown in the same frame, as shown in fig. 4, the voltage of the outer frame (gray frame) is denoted as V1, and the voltage of the inner frame (white frame) is denoted as V2, the data line V is shown within the inner frame D1pp = V2-V1, as shown in FIG. 5, C dpL Coupling capacitance of the pixel electrode pair to the left data line (data line D1) of the pixel electrode pair, C dpR Coupling capacitance of the pixel electrode pair to the right data line (data line D2) of the pixel electrode pair, C st Is the storage capacitor of the sub-pixel.
If C is present dpL >C dpR : then VRHc (+) \ u GN-4 ＝VRHc(+)_ GN-3 Then the brightness of the sub-pixels corresponding to scan lines GN-4 and GN-3 will be brighter, and VRHc (-) - _will be simultaneously displayed GN-2 ＝VRHc(-)_ GN-1 The brightness of the sub-pixels corresponding to the scan line GN-2 and the scan line GN-1 becomes dark; if C is present dpL <C dpR : then VRHc (+) \ u GN-4 ＝VRHc(+)_ GN-3 The brightness of the sub-pixels corresponding to scan lines GN-4 and GN-3 is darkened, and VRHc (-) -/is simultaneously displayed GN-2 ＝VRHc(-)_ GN-1 Then the brightness of the sub-pixels corresponding to the scan line GN-2 and the scan line GN-1 will be brighter;
meanwhile, referring to fig. 6 and 7, it can be seen that, along the scanning line direction, the luminance of the sub-pixels changes periodically at regular intervals, and the sub-pixels beside the data lines are in the coupled picture, so that the sub-pixels with brighter luminance and the sub-pixels with darker luminance change periodically, which improves the crosstalk problem, and especially for a product with higher resolution requirement, the grid feeling caused by the brightness change is not easy to observe, and the display quality of the display panel is improved.
On the basis of the pixel matrix obtained in the embodiment, different sub-pixels of the pixel matrix are loaded with voltages by the first loading voltage and the second loading voltage, so that the white emission phenomenon of the display panel can be improved; the voltage loading modes of two adjacent pixel groups are the same, and the polarity arrangement modes of the two adjacent pixel groups in the pixel matrix are set to be opposite, so that the flicker problem of the display panel is solved; and the mode of polarity inversion is carried out once every 2N rows of sub-pixels, so that the polarity inversion positions are all generated on the pixel positions of the same row, thereby further improving the problem of crosstalk, and for each pixel group, the polarity is periodically and alternately applied to the sub-pixels corresponding to the pixel group in a first sub-polarity mode and a second sub-polarity mode along the direction of a data line, a column inversion mode of polarity is realized in one pixel group, the flicker problem of the display panel can be further improved, the display effect of the display panel is improved, and the quality of the display panel is improved.
An embodiment of the present invention further provides a display, which includes the pixel matrix driving apparatus described in any of the above embodiments, and the pixel matrix driving apparatus includes a pixel matrix, and the pixel matrix includes a plurality of pixel groups, where an ith pixel group is configured with a first polarity manner, an (i + 1) th pixel group is configured with a second polarity manner, and a polarity arrangement manner of the first polarity manner is opposite to a polarity arrangement manner of the second polarity manner.
In one embodiment, the pixel group includes a plurality of sub-pixels, and polarities are alternately applied to the pixel group in a first sub-polarity manner and a second sub-polarity manner at predetermined intervals in a data line direction.
In one embodiment, the polarity of the jth row of sub-pixels is opposite to the polarity of the j +2N row of sub-pixels.
In a specific embodiment, the voltage loading mode of the ith pixel group and the (i + 1) th pixel group is the same.
In one embodiment, the pixel matrix driving device further comprises a timing controller, a data driving module, and a scan driving module, wherein,
the time sequence controller is used for acquiring an initial pixel value and obtaining a first gray scale value and a second gray scale value according to the initial pixel value;
the data driving module is used for loading voltage to the pixel group by alternately loading a first loading voltage or a second loading voltage along the direction of the data line according to a first set interval;
and the scanning driving module is used for alternatively loading the voltage to the pixel group by the first loading voltage or the second loading voltage according to a second set interval along the direction of the scanning line.
On the basis of the pixel matrix obtained in the embodiment, different sub-pixels of the pixel matrix are loaded with voltages by the first loading voltage and the second loading voltage, so that the white emission phenomenon of the display panel can be improved; the voltage loading modes of two adjacent pixel groups are the same, and the polarity arrangement modes of the two adjacent pixel groups in the pixel matrix are set to be opposite, so that the flicker problem of the display panel is solved; and the mode of polarity inversion is carried out once every 2N rows of sub-pixels, so that the polarity inversion positions are all generated on the pixel positions of the same row, thereby further improving the problem of crosstalk, and for each pixel group, the polarity is periodically and alternately applied to the sub-pixels corresponding to the pixel group in a first sub-polarity mode and a second sub-polarity mode along the direction of a data line, a polarity column inversion mode is realized in one pixel group, the flicker problem of the display panel can be further improved, the display effect of the display panel is improved, and the quality of the display panel is improved.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (2)
1. A pixel matrix driving device is characterized by comprising a pixel matrix, wherein the pixel matrix comprises a plurality of pixel groups, the ith pixel group is configured with a first polarity mode, the (i + 1) th pixel group is configured with a second polarity mode, and the polarity arrangement modes of the first polarity mode and the second polarity mode are opposite;
each pixel group comprises Q columns of sub-pixels, the polarity arrangement of two adjacent pixel groups is opposite, and the polarity of the sub-pixels in the x row and the y column in the ith pixel group is opposite to that of the sub-pixels in the x row and the y column in the (i + 1) th pixel group;
each pixel group comprises P × Q sub-pixels, and the preset interval is set to be K 1 Sub-pixels in one pixel group at every K along the data line direction 1 A sub-pixel alternately applying a first sub-polarity pattern and a second sub-polarity pattern to the sub-pixels of the pixel group; in one pixel group, every K along the scanning line direction 2 A sub-pixel alternately applying a first sub-polarity pattern and a second sub-polarity pattern to the sub-pixels of the pixel group;
the polarities of all the sub-pixels in the jth row of sub-pixels are opposite to the polarities of all the sub-pixels at corresponding positions in the jth +2N row of sub-pixels, the polarity arrangement modes of the jth row of sub-pixels to the jth (2N-1) row of sub-pixels are the same, the polarity arrangement modes of the jth +2N row of sub-pixels to the jth (4N-1) row of sub-pixels are the same, and N is larger than or equal to 1;
the voltage loading mode of the ith pixel group is the same as that of the (i + 1) th pixel group;
alternately applying a voltage to the sub-pixels of the pixel group by a first applied voltage or a second applied voltage at a first set interval along the direction of the data line;
alternately loading the voltage on the sub-pixels of the pixel group by the first loading voltage or the second loading voltage at a second set interval along the direction of the scanning line;
the first loading voltage is generated according to a first gray scale value, the second loading voltage is generated according to a second gray scale value, and the pixel gray scale of the first gray scale value is different from that of the second gray scale value.
2. A display is characterized by comprising a pixel matrix driving device, wherein the pixel matrix driving device comprises a pixel matrix, the pixel matrix comprises a plurality of pixel groups, the ith pixel group is configured with a first polarity mode, the (i + 1) th pixel group is configured with a second polarity mode, and the polarity arrangement modes of the first polarity mode and the second polarity mode are opposite;
each pixel group comprises Q columns of sub-pixels, the polarity arrangement mode of two adjacent pixel groups is opposite, and the polarity of the sub-pixels in the x-th row and the y-th column in the ith pixel group is opposite to the polarity of the sub-pixels in the x-th row and the y-th column in the (i + 1) th pixel group;
each pixel group comprises P × Q sub-pixels, and the preset interval is set to be K 1 Sub-pixels in one pixel group at every K along the data line direction 1 A sub-pixel alternately applying a first sub-polarity pattern and a second sub-polarity pattern to the sub-pixels of the pixel group; in one pixel group, every K is arranged along the scanning line direction 2 The pixel driving circuit comprises sub-pixels and a driving circuit, wherein the sub-pixels alternately apply a first sub-polarity mode and a second sub-polarity mode to the sub-pixels of a pixel group, the first sub-polarity mode and the second sub-polarity mode are both polarities correspondingly applied to the pixel group, if the polarities correspondingly applied to the sub-pixels in the first sub-polarity mode are both positive polarities, the polarities correspondingly applied to the sub-pixels in the second sub-polarity mode are both negative polarities, and if the polarities correspondingly applied to the sub-pixels in the first sub-polarity mode are both negative polarities, the polarities correspondingly applied to the sub-pixels in the second sub-polarity mode are both positive polarities;
the polarities of all the sub-pixels in the jth row of sub-pixels are opposite to the polarities of all the sub-pixels at corresponding positions in the jth +2N row of sub-pixels, the polarity arrangement modes of the sub-pixels in the jth row to the jth (2N-1) row are the same, the polarity arrangement modes of the sub-pixels in the jth +2N row to the jth (4N-1) row are the same, and N is more than or equal to 1;
the voltage loading mode of the ith pixel group is the same as that of the (i + 1) th pixel group;
alternately applying a voltage to the sub-pixels of the pixel group by a first applied voltage or a second applied voltage at a first set interval along the direction of the data line;
alternately loading the voltage on the sub-pixels of the pixel group by the first loading voltage or the second loading voltage according to a second set interval along the direction of the scanning line;
the first loading voltage is generated according to a first gray scale value, the second loading voltage is generated according to a second gray scale value, and the pixel gray scale of the first gray scale value is different from that of the second gray scale value.
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| CN114326227B (en) * | 2021-12-29 | 2024-02-23 | 成都天马微电子有限公司 | Display panel, driving method thereof and display device |
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| CN104880874A (en) * | 2015-05-20 | 2015-09-02 | 深圳市华星光电技术有限公司 | Liquid crystal display panel and device |
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| JP2008107733A (en) * | 2006-10-27 | 2008-05-08 | Toshiba Corp | Liquid crystal display device and line driver |
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