CN112185315B - Liquid crystal display panel driving method, liquid crystal display panel and liquid crystal display device - Google Patents
Liquid crystal display panel driving method, liquid crystal display panel and liquid crystal display device Download PDFInfo
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- 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
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- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
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- G—PHYSICS
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- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136286—Wiring, e.g. gate line, drain line
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Abstract
The application provides a driving method of a liquid crystal display panel, wherein a first display subunit comprises a first sub-pixel, a second sub-pixel, a first data line and a second data line, the first data line and the second data line are positioned between the first sub-pixel and the second sub-pixel, the distance between a pixel electrode of the first sub-pixel and the first data line for driving the first sub-pixel is a first distance, the distance between a pixel electrode of the second sub-pixel and the second data line for driving the second sub-pixel is a second distance, and the first distance is smaller than the second distance, the driving method comprises the following steps: step S1, receiving image data; step S2, acquiring the position information and the first gray scale compensation value of the first sub-pixel according to the image data; and step S3, performing gray scale compensation on the first sub-pixel according to the first gray scale compensation value and the position information of the first sub-pixel.
Description
Technical Field
The present disclosure relates to the field of display panel technologies, and in particular, to a driving method of a liquid crystal display panel, and a liquid crystal display device.
Background
In recent years, liquid crystal displays are increasingly used, and are widely used in various electric appliances such as televisions, notebook computers, and the like in human life. The liquid crystal display is usually driven by a progressive scanning method, and in order to prevent polarization of the liquid crystal, the liquid crystal needs to be driven by an alternating current method, that is, the polarities of two adjacent frames of the same sub-pixel and the common electrode are opposite, and are divided into a positive polarity and a negative polarity. The larger the panel size and the higher the resolution, the HG2D (half gate and dual data) structure is used, as shown in fig. 1, in the HG2D structure, the scan line (gate) is halved, the data line (data) is doubled, the first data line 11 and the second data line 12 are arranged between the left and right columns of sub-pixels, the distance between the second data line 12 and the left adjacent second sub-pixel 121 is d2, the distance between the first data line 11 and the right adjacent first sub-pixel 111 is d1, d1 in the target design is equal to d2, however, in the actual production process, due to the manufacturing process and other reasons, the distance between the first data line 11 and the second data line 12 relative to the first sub-pixel 111 and the second sub-pixel 121 is shifted, so that d1 d is not equal to d2, for example, d1 is smaller than d2 in fig. 1, so that the parasitic capacitance of the pixel electrode in the first sub-pixel 111 and the first data line 11 is larger than Cpd1 of the second sub-pixel 121, as shown in fig. 4, in the case of pure gray scale, when the polarity is switched, since Cpd1 is large, the pixel electrode voltage and the brightness of the sub-first sub-pixel 111 are greatly affected, and the difference between the voltage difference Δ V1 of the positive polarity voltage with respect to the common electrode voltage Vcom and the voltage difference Δ V2 of the negative polarity voltage with respect to the common electrode voltage Vcom of the pixel electrode of the first sub-pixel 111 is large, so that the brightness difference between the positive polarity and the negative polarity of the first sub-pixel 111 is large, and the brightness of the same polarity is larger than that of the other polarity, thereby generating an effect similar to a Flicker picture, and causing a Flicker phenomenon.
Disclosure of Invention
The embodiment of the application provides a driving method of a liquid crystal display panel, the liquid crystal display panel and a liquid crystal display device, wherein the driving method of the liquid crystal display panel comprises the following steps: step S1, receiving image data; step S2, acquiring the position information and the first gray scale compensation value of the first sub-pixel according to the image data; step S3, performing gray scale compensation on the first sub-pixel according to the first gray scale compensation value and the position information of the first sub-pixel. The first sub-pixel is subjected to gray scale compensation to improve or prevent the problem of inconsistent brightness of positive and negative polarities caused by too close pixel electrodes of the sub-pixels and data lines or too large generated parasitic capacitance, so that the flicker phenomenon can be prevented, and the display image quality is improved.
The application provides a driving method of a liquid crystal display panel, the liquid crystal display panel comprises a first display subunit, the first display subunit comprises a first sub-pixel, a second sub-pixel, a first data line and a second data line, the first data line and the second data line are positioned between the first sub-pixel and the second sub-pixel, the distance between a pixel electrode of the first sub-pixel and the first data line driving the first sub-pixel is a first distance, the distance between a pixel electrode of the second sub-pixel and the second data line driving the second sub-pixel is a second distance, the first distance is smaller than the second distance, and the driving method comprises the following steps:
step S1, receiving image data;
step S2, acquiring the position information and the first gray scale compensation value of the first sub-pixel according to the image data; and
step S3, performing gray scale compensation on the first sub-pixel according to the first gray scale compensation value and the position information of the first sub-pixel.
In the method for driving a liquid crystal display panel of the present application, the step S2 includes:
acquiring the position information according to the image data and a position lookup table; and
and acquiring the gray scale compensation value according to the image data and a gray scale compensation lookup table.
In the driving method of the liquid crystal display panel of the present application, before the step S1, the driving method further includes performing color difference compensation processing on the image data, and after the step S3, the driving method further includes adjusting a white balance of the image data.
In the method for driving a liquid crystal display panel of the present application, the liquid crystal display panel further includes a second display subunit, the second display subunit includes a third sub-pixel and a fourth sub-pixel, and a third data line and a fourth data line located between the third sub-pixel and the fourth sub-pixel, a distance between a pixel electrode of the third sub-pixel and the third data line driving the third sub-pixel is a third distance, a distance between a pixel electrode of the fourth sub-pixel and the fourth data line driving the fourth sub-pixel is a fourth distance, the third distance is smaller than the fourth distance, and after the step S3, the method includes the following steps:
acquiring position information and a second gray scale compensation value of the third sub-pixel according to the image data; and
and performing gray scale compensation on the third sub-pixel according to the second gray scale compensation value and the position information of the third sub-pixel.
In the driving method of the liquid crystal display panel, the first sub-pixel includes a first red sub-pixel unit, a first green sub-pixel unit, and a first blue sub-pixel unit, and the second sub-pixel includes a second red sub-pixel unit, a second green sub-pixel unit, and a second blue sub-pixel unit.
The application provides a liquid crystal display panel, liquid crystal display panel includes first display subunit, first display subunit includes first subpixel and second subpixel, and is located first subpixel with first data line and second data line between the second subpixel, the pixel electrode of first subpixel with the drive first subpixel the distance of first data line is first distance, the pixel electrode of second subpixel with the drive second subpixel the distance of second data line is the second distance, first distance is less than the second distance, liquid crystal display panel includes:
a receiving module for receiving image data;
the acquisition module is used for acquiring the position information and the first gray scale compensation value of the first sub-pixel according to the image data;
and the compensation module is used for performing gray scale compensation on the first sub-pixel according to the first gray scale compensation value and the position information of the first sub-pixel.
In the liquid crystal display panel of the present application, a color difference elimination module is further included before the receiving module, and is configured to perform color difference elimination processing on the image data; a white balance module is further included after the compensation module for adjusting the white balance of the image data;
the color difference elimination module is electrically connected with the receiving module, the receiving module is electrically connected with the obtaining module, the obtaining module is electrically connected with the compensation module, and the compensation module is electrically connected with the white balance module.
In the liquid crystal display panel of the application, the liquid crystal display panel further comprises a second display subunit, the second display subunit comprises a third subpixel and a fourth subpixel, and is located a third data line and a fourth data line between the third subpixel and the fourth subpixel, a pixel electrode of the third subpixel and a drive of the third subpixel are a third distance, a pixel electrode of the fourth subpixel and a drive of the fourth subpixel are a fourth distance, the third distance is smaller than the fourth distance, and the acquisition module and the compensation module are right for sequentially processing the first display subunit and the second display subunit.
The present application also provides a liquid crystal display device comprising a memory for storing instructions for execution by the processor to implement the driving method of any one of claims 1-5 and a processor.
In the liquid crystal display device of the present application, the first sub-pixel includes a first red sub-pixel unit, a first green sub-pixel unit, and a first blue sub-pixel unit, and the second sub-pixel includes a second red sub-pixel unit, a second green sub-pixel unit, and a second blue sub-pixel unit.
The beneficial effect of this application does: the embodiment of the application provides a driving method of a liquid crystal display panel, the liquid crystal display panel and a liquid crystal display device, wherein the driving method of the liquid crystal display panel comprises the following steps: step S1, receiving image data; step S2, acquiring the position information and the first gray scale compensation value of the first sub-pixel according to the image data; step S3, performing gray scale compensation on the first sub-pixel according to the first gray scale compensation value and the position information of the first sub-pixel. The first sub-pixel is subjected to gray scale compensation to improve or prevent the problem of inconsistent brightness of positive and negative polarities caused by too close pixel electrodes of the sub-pixels and data lines or too large generated parasitic capacitance, so that the flicker phenomenon can be prevented, and the display image quality is improved.
Drawings
The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.
Fig. 1 is a schematic diagram illustrating a relationship between a plurality of sub-pixels and corresponding data lines according to an embodiment of the present disclosure;
fig. 2 is a schematic diagram of a display subunit of a display panel according to an embodiment of the present disclosure;
fig. 3 is a schematic diagram illustrating an example of position information of a first sub-pixel in a display panel according to an embodiment of the present disclosure;
FIG. 4 is a schematic voltage diagram of positive and negative polarities of a first sub-pixel before compensation by a driving method according to an embodiment of the present disclosure;
FIG. 5 is a schematic voltage diagram of positive and negative polarities of a first sub-pixel compensated by a driving method according to an embodiment of the present disclosure;
fig. 6 is a schematic diagram of a display panel according to an embodiment of the present application including a plurality of modules;
fig. 7 is a schematic diagram of a display device according to an embodiment of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
Referring to fig. 1 to 6, an embodiment of the present application provides a driving method of a liquid crystal display panel 600, the liquid crystal display panel 600 includes a first display subunit 610, the first display subunit 610 includes a first sub-pixel 111, a second sub-pixel 121, and a first data line 11 and a second data line 12 located between the first sub-pixel 111 and the second sub-pixel 121, a distance between a pixel electrode of the first sub-pixel 111 and the first data line 11 driving the first sub-pixel 111 is a first distance d1, a distance between a pixel electrode of the second sub-pixel 121 and the second data line 12 driving the second sub-pixel 121 is a second distance d2, and the first distance d1 is smaller than the second distance d2, the driving method includes the following steps:
step S1, receiving image data;
step S2, obtaining the position information and the first grayscale compensation value of the first sub-pixel 111 according to the image data; and
in step S3, the first sub-pixel 111 is gray-scale compensated according to the first gray-scale compensation value and the position information of the first sub-pixel 111.
Specifically, in some embodiments, the lcd panel 600 includes at least one first display subunit 610, the lcd panel 600 may include a plurality of first display subunits 610, and each of the first display subunits 610 may perform the driving methods of step S1, step S2, and step S3.
Specifically, referring to fig. 1, in the HG2D (half gate and dual data) architecture, the scan line (gate) is halved, and the data line (data) is doubled, the first data line 11 and the second data line 12 are arranged between two adjacent columns of sub-pixels, the distance between the second data line 12 and the left-side adjacent second sub-pixel 121 is d2, i.e. the distance between the second sub-pixel 121 and its corresponding second data line 12 is d2, the distance between the first data line 11 and the right-side adjacent first sub-pixel 111 is d1, i.e. the distance between the first sub-pixel 111 and its corresponding first data line 11 is d1, since d1 is smaller than d2, the pixel electrode of the first sub-pixel 111 and the first data line 11 driving the first sub-pixel 111 form a first parasitic capacitor Cpd1, the pixel electrode of the second sub-pixel 121 and the second data line 12 driving the second sub-pixel 111 form a second parasitic capacitor Cpd2 3, Cpd1 and Cpd 4934, the driving method of step S1, step S2 and step S3 is performed on the first sub-pixel 111, but not limited thereto, since d1 is smaller than d2, which results in Cpd1 being larger than Cpd 2.
Specifically, as shown in fig. 1, a sign "-" in the plurality of sub-pixels identifies each first sub-pixel 111, a sign "+" in the plurality of sub-pixels identifies each second sub-pixel 121, the first sub-pixels 111 and the second sub-pixels 121 are alternately arranged in a direction perpendicular to an extending direction of the first data line 11, the first data line 11 and the second data line 12 are located between the first sub-pixels 111 and the second sub-pixels 121, the first sub-pixels 111 and the second sub-pixels 121 are alternately arranged in a direction parallel to the extending direction of the first data line 11, and the compensation of the driving method is performed on the plurality of first sub-pixels 111, so that the positive polarity luminance and the negative polarity luminance of the first sub-pixels 111 can be equal or similar, thereby preventing or improving the problem of the non-uniform polarity luminance caused by too close of the pixel electrodes of the sub-pixels and the data lines or too large parasitic capacitance generated by the sub-pixels, thereby preventing flicker and improving display quality.
Specifically, in some embodiments, the arrangement of the first sub-pixel 111 and the second sub-pixel 121 may be different from that shown in fig. 1, for example, the first data line 11 and the second data line 12 are arranged between two left and right columns of sub-pixels, the first sub-pixel 111 is located on a first side of the first data line 11, the second sub-pixel 121 is located on a second side of the second data line 12, and the first side and the second side are located on two opposite sides, for example, a left side and a right side, of the first data line 11 and the second data line 12, respectively. The arrangement of the first and second subpixels 111 and 121 is not limited thereto.
Specifically, in some embodiments, as shown in fig. 1, the first subpixel 111 and the second subpixel 121 may also be configured with a polarity inversion method of the display panel, for example, the polarities of the first subpixel 111 and the second subpixel 121 in the same frame are different, the second subpixel 121 may be negative when the first subpixel 111 is positive, and the second subpixel 121 may be positive when the first subpixel 111 is negative, at this time, the compensation operation of the driving method of the liquid crystal display panel 600 is performed on the first subpixel 111, so that the problem of the luminance difference between the positive polarity and the negative polarity of the first subpixel 111 can be eliminated, the luminance difference between the positive polarity first subpixel 111 and the negative polarity second subpixel 121 in the same frame can be eliminated, the luminance difference between the negative polarity first subpixel 111 and the positive polarity second subpixel 121 in the same frame can be eliminated, the flicker phenomenon can be well prevented, and the display image quality is greatly improved. The polarity inversion method of the first subpixel 111 and the second subpixel 121 is not limited thereto.
In some embodiments, step S2 of the driving method includes obtaining the position information according to the image data and the position lookup table, and obtaining the gamma compensation value according to the image data and the gamma compensation lookup table.
Specifically, referring to fig. 3, taking a first display subunit 610 as an example, the first display subunit 610 is exemplified by a 12-column by 8-row sub-pixel matrix, where the first display subunit 610 includes 12-column by 8-row sub-pixels, a plurality of sub-pixels in the first display subunit 610 are divided into a first sub-pixel 111 and a second sub-pixel 121 in a position lookup table, and are distributed in corresponding positions in the position lookup table according to a corresponding relationship between the first sub-pixel 111 and the second sub-pixel 121 and between the first data line 11 and the second data line 12, for example, the first sub-pixel 11 is identified as 1 in fig. 3, the second sub-pixel 121 is identified as 0, for example, the sub-pixel in the 2 nd row and the 2 nd column in fig. 3 is the first sub-pixel 111, and the sub-pixel in the 2 nd row and the 2 nd column in the 4 th row and the first sub-pixel 111, and the position information of the first sub-pixel 111 can be obtained through the position lookup table, the step S2 of the driving method may optionally include: s21 distinguishes a sub-pixel of the plurality of sub-pixels in the first display sub-unit 610 as the first sub-pixel 111; the step S2 of the driving method may optionally include S22: distinguishing the positions of a plurality of first sub-pixels in the first display sub-unit 610, for example, an mth column and an nth row of a certain first sub-pixel 111 in the first display sub-unit 610, wherein M, N is a positive integer; it should be noted that the optional steps including S21 and S22 refer to the steps or methods performed in one or both of S21 and S22, but are not limited to the steps or methods described in S21 and S22.
Specifically, in some embodiments, the gray scale compensation lookup table is used to obtain the gray scale compensation value, the gray scale compensation lookup table may include compensation information corresponding to each gray scale or multiple gray scales of the 0 to 255 gray scales of the preset first sub-pixel 111, and the compensation information may be a voltage compensation value of a signal of a data line corresponding to a certain gray scale of the first sub-pixel 111.
Specifically, in some embodiments, after steps S1 and S2 in the driving method are performed, the first sub-pixel 111 is gray-scale compensated according to the first gray-scale compensation value and the position information of the first sub-pixel 111, for example, the compensation operation of the compensation value of the currently displayed gray-scale is performed according to the mth row × N position of a certain first sub-pixel, M, N is a positive integer.
As shown in fig. 4, in the case of pure gray scale before the liquid crystal display panel performs the above-mentioned driving method, when the polarity is switched, since Cpd1 is large, the pixel electrode voltage and the brightness of the sub-first sub-pixel 111 are greatly affected, and the voltage difference Δ V1 between the positive polarity voltage of the pixel electrode of the first sub-pixel 111 and the common electrode voltage Vcom and the voltage difference Δ V2 between the negative polarity voltage and the common electrode voltage Vcom are greatly different, so that the brightness of the first sub-pixel 111 with the positive polarity and the brightness of the negative polarity are greatly different, and the brightness of the same polarity is larger than that of the other polarity, thereby generating an effect similar to a Flicker picture, and causing a Flicker phenomenon. As shown in fig. 5, in the case of pure gray scale after the liquid crystal display panel performs the above-mentioned driving method, a large difference between a voltage difference Δ V1 of the positive polarity voltage of the pixel electrode of the first sub-pixel 111 with respect to the common electrode voltage Vcom and a voltage difference Δ V2 of the negative polarity voltage with respect to the common electrode voltage Vcom is eliminated, such that Δ V1 is the same as or similar to Δ V2, such that the positive polarity luminance of the first sub-pixel 111 is equal to or similar to the negative polarity luminance, thereby preventing or improving the problem of inconsistent positive and negative polarity luminance caused by too close pixel electrode of the sub-pixel to the data line or too large parasitic capacitance generated, thereby preventing the flicker phenomenon and improving the display image quality.
In some embodiments, the driving method further includes performing a color difference compensation process on the image data before step S1, and after step S3, the driving method further includes adjusting a white balance of the image data.
Specifically, in some embodiments, before step S1, the driving method further includes performing color difference compensation processing (Demura processing) on the image data, for example, the display has color nonuniformity, and performing color difference compensation processing (Demura) on the image data before step S1 to eliminate color nonuniformity; after step S3, the driving method further includes adjusting the white balance of the image data, for example, adjusting the white balance of the image data after step S3 so that the luminance displayed by the first subpixel 111 increases by a preset value as the gray scale increases.
In some embodiments, with continuing reference to fig. 1, in the method for driving any one of the above-mentioned liquid crystal display panels, the liquid crystal display panel 600 further includes a second display sub-unit 620, the second display sub-unit 620 includes a third sub-pixel 131, a fourth sub-pixel 141, and a third data line 13 and a fourth data line 14 between the third sub-pixel 131 and the fourth sub-pixel 141, a distance between a pixel electrode of the third sub-pixel 131 and the third data line 13 driving the third sub-pixel 131 is a third distance d3, a distance between a pixel electrode of the fourth sub-pixel 141 and the fourth data line 14 driving the fourth sub-pixel 141 is a fourth distance d4, and the third distance d3 is smaller than the fourth distance d4, after the step S3, the method includes the following steps: position information of the third sub-pixel 131 and the second gray scale compensation value are obtained according to the image data, and gray scale compensation is performed on the third sub-pixel 131 according to the second gray scale compensation value and the position information of the third sub-pixel 131.
Specifically, in some embodiments, the liquid crystal display panel 600 includes at least one first display sub-unit 610 and at least one second display sub-unit 620, the liquid crystal display panel 600 may include a plurality of second display sub-units 620, and each of the first display sub-units 610 and each of the second display sub-units 620 may perform the driving methods of steps S1, S2, and S3. The distance between the third sub-pixel 131 and the corresponding third data line 13 is d3, the distance between the fourth sub-pixel 141 and the corresponding fourth data line 14 is d4, the pixel electrode of the third sub-pixel 131 and the third data line 13 driving the third sub-pixel 131 form a third parasitic capacitance Cpd3, the pixel electrode of the fourth sub-pixel 141 and the fourth data line 14 driving the fourth sub-pixel 141 form a fourth parasitic capacitance Cpd4, since d3 is smaller than d4, Cpd3 is larger than Cpd4, and in the case that other factors are the same or not considered, since d3 is smaller than d4, Cpd3 is larger than Cpd4, the driving method of step S2 and step S3 is performed on the third sub-pixel 131.
The detailed process of the driving method performed on the third sub-pixel of the second display sub-unit 620 is the same as or similar to the detailed process of the driving method performed on the first sub-pixel 111 of the first display sub-unit 610, and is not repeated herein.
In some embodiments, referring to fig. 1, the first sub-pixel 111 includes a first red sub-pixel unit 131, a first green sub-pixel unit 132, and a first blue sub-pixel unit 133, and the second sub-pixel 122 includes a second red sub-pixel unit 131, a second green sub-pixel unit 132, and a second blue sub-pixel unit 133.
Referring to fig. 1, 2 and 4, an embodiment of the present disclosure further provides a liquid crystal display panel 600, the liquid crystal display panel 600 includes a first display subunit 610, the first display subunit 610 includes a first subpixel 111, a second subpixel 121, and a first data line 11 and a second data line 12 located between the first subpixel 11 and the second subpixel 121, a distance between a pixel electrode of the first subpixel 111 and the first data line 11 driving the first subpixel 111 is a first distance d1, a distance between a pixel electrode of the second subpixel 121 and the second data line 12 driving the second subpixel 121 is a second distance d2, and the first distance d1 is smaller than the second distance d2, the liquid crystal display panel 600 includes a receiving module 171, an obtaining module 172, and a compensating module 173. The receiving module 171 is configured to receive image data; the obtaining module 172 is configured to obtain the position information and the first gray-scale compensation value of the first sub-pixel 111 according to the image data; the compensation module 173 is configured to perform gray scale compensation on the first sub-pixel 111 according to the first gray scale compensation value and the position information of the first sub-pixel 111.
Specifically, in some embodiments, the lcd panel 600 includes at least one first display subunit 610, the lcd panel 600 may include a plurality of first display subunits 610, and each of the first display subunits 610 may perform the driving methods of step S1, step S2, and step S3. The distance between the first sub-pixel 111 and the corresponding first data line 11 is d1, the distance between the second sub-pixel 121 and the corresponding second data line 12 is d2, the pixel electrode of the first sub-pixel 111 and the first data line 11 driving the first sub-pixel 111 form a first parasitic capacitance Cpd1, the pixel electrode of the second sub-pixel 121 and the second data line 12 driving the second sub-pixel 121 form a second parasitic capacitance Cpd2, since d1 is smaller than d2, Cpd1 is larger than Cpd2, and in the case that other factors are the same or not considered, Cpd1 is larger than Cpd2 since d1 is smaller than d 2. The liquid crystal display panel 600 includes a receiving module 171, an obtaining module 172, and a compensating module 173. The receiving module 171 is configured to receive image data; the obtaining module 172 is configured to obtain the position information and the first gray-scale compensation value of the first sub-pixel 111 according to the image data; the compensation module 173 is configured to perform gray scale compensation on the first sub-pixel 111 according to the first gray scale compensation value and the position information of the first sub-pixel 111.
Specifically, in some embodiments, the obtaining module 172 may obtain the position information according to the image data and the position lookup table, or obtain the gray scale compensation value according to the image data and the gray scale compensation lookup table.
Specifically, the obtaining module 172 may obtain the position information according to the image data and the position lookup table, referring to fig. 3, taking a first display subunit 610 as an example, the first display subunit 610 is exemplified by a 12-column-8-row sub-pixel matrix, the first display subunit 610 includes 12-column-8-row sub-pixels, a plurality of sub-pixels in the first display subunit 610 are divided into a first sub-pixel 111 and a second sub-pixel 121 in the position lookup table, and are distributed in corresponding positions in the position lookup table according to a corresponding relationship between the first sub-pixel 111 and the second sub-pixel 121 and the first data line 11 and the second data line 12, for example, in fig. 3, the first sub-pixel 11 is identified as 1, the second sub-pixel 121 is identified as 0, for example, in fig. 3, the 2 nd row and 2 nd column sub-pixel in the 2 nd row is the first sub-pixel 111, and the 4 nd row and 2 nd column sub-pixel is the first sub-pixel 111, the position information of the first sub-pixel 111 can be obtained through the position lookup table, and it should be noted that the functions of the obtaining module 172 may optionally include: s21 distinguishes a sub-pixel of the plurality of sub-pixels in the first display sub-unit 610 as the first sub-pixel 111; the functions of the obtaining module 172 may optionally include S22: distinguishing the positions of the first sub-pixels 111 in the first display sub-unit 610, for example, the mth column by nth row of a certain first sub-pixel 111 in the first display sub-unit 610, M, N is a positive integer; it should be noted that the optional steps including S21 and S22 refer to the steps or methods performed in one or both of S21 and S22, but are not limited to the steps or methods described in S21 and S22.
In some embodiments, the first display sub-unit 610 may include M columns by N rows of sub-pixels, M, N is an integer, the display panel 600 may include one or more first display sub-units 610, and when the display panel 600 includes one first display sub-unit 610, the first display sub-unit 610 includes all sub-pixels of the display panel 600.
Specifically, the obtaining module 172 may obtain the gray scale compensation value according to the image data and the gray scale compensation lookup table, specifically, in some embodiments, the gray scale compensation lookup table may obtain the gray scale compensation value through the gray scale compensation lookup table, and the gray scale compensation lookup table may include compensation information corresponding to each gray scale or multiple gray scale points in the 0 to 255 gray scales of the preset first sub-pixel 111, and the compensation information may be a voltage compensation value of a signal of a data line corresponding to a certain gray scale of the first sub-pixel 111.
Specifically, the compensation module 173 performs gray scale compensation on the first sub-pixel 111 according to the first gray scale compensation value and the position information of the first sub-pixel, and in some embodiments, after the data on the image passes through the receiving module 171 and the obtaining module 172, the gray scale compensation is performed on the first sub-pixel 111 according to the first gray scale compensation value and the position information of the first sub-pixel 111, for example, the compensation operation of the compensation value of the currently displayed gray scale is performed according to the mth row N position of a certain first sub-pixel 111, and M, N is a positive integer.
In some embodiments, referring to fig. 4, a color difference elimination module 161 is further included before the receiving module 171, for performing color difference elimination processing on the image data; a white balance module 181 is further included after the compensation module 173 for adjusting the white balance of the image data;
the color difference elimination module 161 is electrically connected to the receiving module 171, the receiving module 171 is electrically connected to the obtaining module 172, the obtaining module 172 is electrically connected to the compensation module 173, and the compensation module 173 is electrically connected to the white balance module 181.
Specifically, in some embodiments, before the receiving module 171 processes the image data, the color difference elimination module 161 is further included to perform color difference compensation processing (Demura compensation) on the image data, for example, there is color nonuniformity in the display, and before the receiving module 171 processes the image data, the color difference compensation processing (Demura processing) is performed on the image data to eliminate color nonuniformity; the white balance module 181 is further included to adjust the white balance of the image data after the compensation module 173 processes the on-image data, for example, to adjust the white balance of the image data after the compensation module 173 processes the on-image data so that the luminance displayed by the first sub-pixel 111 increases according to a preset value as the gray scale increases.
In some embodiments, referring to fig. 1 and fig. 2, the liquid crystal display panel 600 further includes a second display sub-unit 620, the second display sub-unit 620 includes a third sub-pixel 131, a fourth sub-pixel 141, and a third data line 13 and a fourth data line 14 between the third sub-pixel 131 and the fourth sub-pixel 141, a distance between a pixel electrode of the third sub-pixel 131 and the third data line 13 driving the third sub-pixel 131 is a third distance d3, a distance between a pixel electrode of the fourth sub-pixel 141 and the fourth data line 14 driving the fourth sub-pixel 141 is a fourth distance d4, the third distance d3 is smaller than the fourth distance d4, and the obtaining module 172 and the compensating module 173 sequentially process the first display sub-unit 610 and the second display sub-unit 620.
Based on the same or similar principles of the above embodiments, the third parasitic capacitance Cpd3 is larger than the fourth parasitic capacitance Cpd 4. It may be preferable to first process the image data of the first display subunit 610 through the receiving module 171, the obtaining module 172, and the compensating module 173; the image data of the second display subunit 620 may be processed by the receiving module 171, the obtaining module 172, and the compensating module 173. The image data of the first display subunit 610 and the second display subunit 620 may also be sequentially processed by the obtaining module 172 and the compensating module 173, for example, the obtaining module 172 and the compensating module 173 process the image data of the first display subunit 610 first, and then process the image data of the second display subunit 620 later.
Referring to fig. 7, an embodiment of the present application further provides a liquid crystal display device 800, which includes a memory and a processor, wherein the memory is used for storing instructions, and the instructions are used for being executed by the processor to implement any one of the above-mentioned driving methods for the liquid crystal display panel 600. Specifically, in some embodiments, the memory may store the position lookup table and the gray scale compensation lookup table in the above embodiments.
In the liquid crystal display device 800 according to the embodiment of the present application, the liquid crystal display device 800 includes a first sub-pixel 111 and a second sub-pixel 121, the first sub-pixel 111 includes a first red sub-pixel unit 131, a first green sub-pixel unit 132, and a first blue sub-pixel unit 133, and the second sub-pixel 121 includes a second red sub-pixel unit 131, a second green sub-pixel unit 132, and a second blue sub-pixel unit 133.
In some embodiments, the liquid crystal display device 800 includes any of the liquid crystal display panels 600 described above, and the display device 800 may further include, but is not limited to, a housing, a protective member, and other members 700.
The embodiment of the application provides a driving method of a liquid crystal display panel, the liquid crystal display panel and a liquid crystal display device, wherein the driving method of the liquid crystal display panel comprises the following steps: step S1, receiving image data; step S2, acquiring the position information and the first gray scale compensation value of the first sub-pixel according to the image data; in step S3, performing gray scale compensation on the first sub-pixel according to the first gray scale compensation value and the position information of the first sub-pixel. The first sub-pixel or the second sub-pixel is subjected to gray scale compensation to improve or prevent the problem of inconsistent brightness of positive and negative polarities caused by too close pixel electrodes of the sub-pixels and data lines or too large generated parasitic capacitance, so that the flicker phenomenon can be prevented, and the display image quality is improved.
The embodiment of the present application provides a liquid crystal display panel, which includes a receiving module 171, an obtaining module 172, and a compensating module 173, wherein the receiving module 171 is configured to receive image data; the obtaining module 172 is configured to obtain the position information and the first gray-scale compensation value of the first sub-pixel 111 according to the image data; the compensation module 173 is configured to perform gray scale compensation on the first sub-pixel 111 according to the first gray scale compensation value and the position information of the first sub-pixel 111, and perform gray scale compensation on the first sub-pixel through the receiving module 171, the obtaining module 172, and the compensation module 173, so as to improve or prevent the problem of inconsistent brightness of positive and negative polarities caused by too close pixel electrodes of the sub-pixels to data lines or too large parasitic capacitance generated, thereby preventing a flicker phenomenon and improving display image quality.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The above embodiments of the present application are described in detail, and specific examples are applied in the present application to explain the principles and implementations of the present application, and the description of the above embodiments is only used to help understand the technical solutions and core ideas of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.
Claims (10)
1. A driving method of a liquid crystal display panel, wherein the liquid crystal display panel includes a first display sub-unit, the first display sub-unit includes a first sub-pixel and a second sub-pixel, and a first data line and a second data line between the first sub-pixel and the second sub-pixel, a distance between a pixel electrode of the first sub-pixel and the first data line driving the first sub-pixel is a first distance, a distance between a pixel electrode of the second sub-pixel and the second data line driving the second sub-pixel is a second distance, the first distance is smaller than the second distance, and polarities of the first sub-pixel and the second sub-pixel are different, the driving method includes the steps of:
step S1, receiving image data;
step S2, acquiring the position information and the first gray scale compensation value of the first sub-pixel according to the image data; and
step S3, performing gray scale compensation on the first sub-pixel according to the first gray scale compensation value and the position information of the first sub-pixel.
2. The method for driving a liquid crystal display panel according to claim 1, wherein the step S2 includes:
acquiring the position information according to the image data and a position lookup table; and
and acquiring the first gray scale compensation value according to the image data and a gray scale compensation lookup table.
3. The method of driving a liquid crystal display panel according to claim 1, wherein before the step S1, the method further comprises performing a color difference compensation process on the image data, and after the step S3, the method further comprises adjusting a white balance of the image data.
4. The method for driving a liquid crystal display panel according to claim 1, wherein the liquid crystal display panel further comprises a second display sub-unit, the second display sub-unit comprises a third sub-pixel and a fourth sub-pixel, and a third data line and a fourth data line are located between the third sub-pixel and the fourth sub-pixel, a distance between a pixel electrode of the third sub-pixel and the third data line driving the third sub-pixel is a third distance, a distance between a pixel electrode of the fourth sub-pixel and the fourth data line driving the fourth sub-pixel is a fourth distance, the third distance is smaller than the fourth distance, polarities of the third sub-pixel and the fourth sub-pixel are different, and after the step S3, the method comprises the steps of:
acquiring position information and a second gray scale compensation value of the third sub-pixel according to the image data; and
and performing gray scale compensation on the third sub-pixel according to the second gray scale compensation value and the position information of the third sub-pixel.
5. The method of driving a liquid crystal display panel according to claim 1, wherein the first sub-pixel includes a first red sub-pixel unit, a first green sub-pixel unit, and a first blue sub-pixel unit, and the second sub-pixel includes a second red sub-pixel unit, a second green sub-pixel unit, and a second blue sub-pixel unit.
6. A liquid crystal display panel, the liquid crystal display panel comprising a first display sub-unit, the first display sub-unit comprising a first sub-pixel and a second sub-pixel, and a first data line and a second data line between the first sub-pixel and the second sub-pixel, a distance between a pixel electrode of the first sub-pixel and the first data line driving the first sub-pixel being a first distance, a distance between a pixel electrode of the second sub-pixel and the second data line driving the second sub-pixel being a second distance, the first distance being smaller than the second distance, polarities of the first sub-pixel and the second sub-pixel being different, the liquid crystal display panel comprising:
a receiving module for receiving image data;
the acquisition module is used for acquiring the position information and the first gray scale compensation value of the first sub-pixel according to the image data;
and the compensation module is used for performing gray scale compensation on the first sub-pixel according to the first gray scale compensation value and the position information of the first sub-pixel.
7. The liquid crystal display panel according to claim 6, further comprising a color difference elimination module for performing color difference elimination processing on the image data before the reception module; a white balance module is further included after the compensation module for adjusting the white balance of the image data;
the color difference elimination module is electrically connected with the receiving module, the receiving module is electrically connected with the obtaining module, the obtaining module is electrically connected with the compensation module, and the compensation module is electrically connected with the white balance module.
8. The lcd panel of claim 7, further comprising a second display sub-unit, wherein the second display sub-unit comprises a third sub-pixel and a fourth sub-pixel, and a third data line and a fourth data line between the third sub-pixel and the fourth sub-pixel, a distance between a pixel electrode of the third sub-pixel and the third data line driving the third sub-pixel is a third distance, a distance between a pixel electrode of the fourth sub-pixel and the fourth data line driving the fourth sub-pixel is a fourth distance, the third distance is smaller than the fourth distance, polarities of the third sub-pixel and the fourth sub-pixel are different, and the obtaining module and the compensating module sequentially process the first display sub-unit and the second display sub-unit.
9. A liquid crystal display device comprising a memory for storing instructions for execution by the processor to implement the driving method of any one of claims 1 to 5 and a processor.
10. The liquid crystal display device of claim 9, wherein the first sub-pixel comprises a first red sub-pixel unit, a first green sub-pixel unit, and a first blue sub-pixel unit, and the second sub-pixel comprises a second red sub-pixel unit, a second green sub-pixel unit, and a second blue sub-pixel unit.
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