WO2018152905A1 - 一种液晶显示面板的驱动方法 - Google Patents
一种液晶显示面板的驱动方法 Download PDFInfo
- Publication number
- WO2018152905A1 WO2018152905A1 PCT/CN2017/077161 CN2017077161W WO2018152905A1 WO 2018152905 A1 WO2018152905 A1 WO 2018152905A1 CN 2017077161 W CN2017077161 W CN 2017077161W WO 2018152905 A1 WO2018152905 A1 WO 2018152905A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- time period
- polarity
- pixel
- period
- voltage
- Prior art date
Links
Images
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3614—Control of polarity reversal in general
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3648—Control of matrices with row and column drivers using an active matrix
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3674—Details of drivers for scan electrodes
- G09G3/3677—Details of drivers for scan electrodes suitable for active matrices only
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3685—Details of drivers for data electrodes
- G09G3/3688—Details of drivers for data electrodes suitable for active matrices only
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0202—Addressing of scan or signal lines
- G09G2310/0213—Addressing of scan or signal lines controlling the sequence of the scanning lines with respect to the patterns to be displayed, e.g. to save power
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0264—Details of driving circuits
- G09G2310/0283—Arrangement of drivers for different directions of scanning
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/08—Details of timing specific for flat panels, other than clock recovery
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0209—Crosstalk reduction, i.e. to reduce direct or indirect influences of signals directed to a certain pixel of the displayed image on other pixels of said image, inclusive of influences affecting pixels in different frames or fields or sub-images which constitute a same image, e.g. left and right images of a stereoscopic display
- G09G2320/0214—Crosstalk reduction, i.e. to reduce direct or indirect influences of signals directed to a certain pixel of the displayed image on other pixels of said image, inclusive of influences affecting pixels in different frames or fields or sub-images which constitute a same image, e.g. left and right images of a stereoscopic display with crosstalk due to leakage current of pixel switch in active matrix panels
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
Definitions
- the present invention claims the priority of the prior art application entitled “A Method of Driving a Liquid Crystal Display Panel”, filed on Feb. 27, 2017, which is incorporated herein by reference. This.
- the present invention belongs to the field of display technologies, and in particular, to a driving method of a liquid crystal display panel.
- the existing liquid crystal display panel comprises a gate driver, N scan lines, a source driver, M data lines, a plurality of thin film transistors, a plurality of pixel capacitors, wherein N, M ⁇ 2, and the pixel capacitor comprises a pixel electrode a common electrode, a liquid crystal layer between the pixel electrode and the common electrode.
- the liquid crystal in the liquid crystal layer is driven by the electric field in the same direction for a long time, for example, the pixel electrode is always positive, the liquid crystal is prone to polarization, and finally the liquid crystal cannot be normally deflected in the electric field.
- the voltage output from the data line to the liquid crystal capacitor is usually reversed with time, so that the liquid crystal does not undergo polarization when the deflection angle is constant.
- the most commonly used polarity inversion methods in the industry are column inversion and frame inversion.
- a certain scan line is applied with a turn-on voltage to turn on the thin film transistor for charging the corresponding liquid crystal capacitor, and other lines of the scan line need to apply a negative voltage to better turn off the thin film transistor.
- the column pixel capacitance or all pixel capacitances of the current frame need to be reversed to the negative polarity, but due to the uncharged pixel capacitance.
- the connected scan line is applied with a negative voltage.
- the data line needs to input a negative voltage to the corresponding pixel capacitor to charge, so that the voltage difference between the source and the gate of the thin film transistor connected to the uncharged pixel capacitor is reduced, which will result in a thin film.
- the leakage current of the transistor increases, and since the scan line scans from top to bottom one by one, the pixel capacitance connected to the second scan line-the pixel capacitor connected to the last scan line gradually increases in leakage time, resulting in a gradual decrease in brightness. Eventually, the brightness of the liquid crystal display panel is uneven.
- a technical problem to be solved by the embodiments of the present invention is to provide a driving method of a liquid crystal display panel.
- the problem of uneven brightness of the screen of the liquid crystal display panel can be alleviated.
- the present invention provides a driving method of a liquid crystal display panel, which includes a gate driver, N scanning lines, a source driver, M data lines, and a plurality of pixel capacitors, wherein N , M ⁇ 2, the driving method includes:
- the gate driver inputs an on-voltage to the scan line one by one from a first direction during a first period of time, the source driver inputs a pixel voltage of a first polarity to the data line to charge the pixel capacitor ;
- the gate driver inputs an on-voltage to the scan line one by one from the first direction during a second period, the source driver inputs a pixel voltage of a second polarity to the data line to the pixel capacitance Charge
- the gate driver inputs an on-voltage to the scan line one by one from a second direction during a third period, the source driver inputs a pixel voltage of the first polarity to the data line to a capacitance of the pixel Charge
- the gate driver inputs an on-voltage to the scan line one by one from the second direction in a fourth period, the source driver inputs a pixel voltage of the second polarity to the data line to Pixel capacitors are charged; among them,
- the pixel capacitances in the same column are of the same polarity for the same period of time, the first polarity is opposite to the second polarity, and the second direction is opposite to the first direction.
- the first time period, the second time period, the third time period, and the fourth time period constitute one driving period of the liquid crystal display panel.
- the first time period, the second time period, the third time period, and the fourth time period are arranged in chronological order; or, the third time period and the fourth time period
- the first time period and the second time period are arranged in chronological order.
- the first time period further includes a fifth time period, and the first time period further includes a fifth time period, wherein the gate driver and the source driver are in accordance with the fifth time period.
- the second time period further includes a sixth time period, The sixth period of time, the gate driver and the source driver perform the same action according to the second time period;
- the third time period further includes a seventh time period, where the seventh time period is The gate driver and the source driver perform the same action according to the third time period;
- the fourth time period further includes an eighth time period during which the gate driver and the The source driver performs the same action in accordance with the fourth time period.
- the first time period - the eighth time period constitutes one driving period of the liquid crystal display panel.
- the second time period further includes 2k time segments
- the fourth time period further includes 2j time segments
- the gate drivers and the adjacent two time segments are in the 2k time segments.
- the source driver performs the same action according to the first time period and the second time period, and the gate driver and the source driver are in accordance with two adjacent time periods in the 2j time period.
- the third time period and the fourth time period perform the same action, wherein the k and the j are equal, and the k and the j are positive integers.
- the first time period, the second time period, the third time period, and the fourth time period are each a frame.
- the first direction is from top to bottom, and the second direction is from bottom to top; or the first direction is from bottom to top, and the second direction is from top to bottom. direction.
- the first polarity is positive polarity
- the second polarity is negative polarity
- the first polarity is negative polarity
- the second polarity is positive polarity
- the polarity inversion manner of the pixel capacitor is column inversion or frame inversion.
- the pixel capacitance of the same column is the same polarity in the same time period, the first polarity is opposite to the second polarity, and the second direction is opposite to the first direction, thereby, the brightness of the liquid crystal display panel in the third time period and the fourth time period
- the brightness of the liquid crystal display panel in the first time period and the second time period can be compensated, which is beneficial to the uniform brightness of the entire liquid crystal display panel and improves the display effect of the screen.
- FIG. 1 is a circuit diagram of a liquid crystal display panel of the present invention
- FIG. 2 is a flow chart showing a driving method of a liquid crystal display panel according to an embodiment of the present invention
- FIG. 3 is a schematic diagram showing polarities of a pixel capacitor in a first time period to a fourth time period according to an embodiment of the invention
- FIG. 4 is a schematic diagram showing the polarity of a pixel capacitor in a first time period to an eighth time period according to another embodiment of the present invention.
- the liquid crystal display panel includes a gate driver 110, N scan lines SL1-SLn, a source driver 120, and M data lines DL1-DLm. a plurality of pixel capacitors Clc, wherein N, M ⁇ 2, wherein one end of the N scan lines SL1-SLn is electrically connected to the gate driver 110 to receive a voltage signal from the gate driver 110, the M One end of the strip data lines DL1-DLm is electrically connected to the source driver 120 to receive a voltage signal from the source driver 120, and the N scan lines SL1-SLn intersect with the M data lines DL1-DLm to form a plurality of pixels.
- each pixel region includes a thin film transistor and a pixel electrode, and a gate of the thin film transistor is electrically connected to a corresponding scan line SL, a source of the thin film transistor and a corresponding data line DL electrical connection, the thin film transistor
- the drain electrode is electrically connected to the corresponding pixel electrode, the common electrode of the pixel electrode and the liquid crystal display panel, and the liquid crystal layer constitute a pixel capacitor Clc, and the liquid crystal layer is located between the pixel electrode and the common electrode.
- the polarity inversion mode in this embodiment is column inversion and frame inversion.
- the polarity inversion mode may also be other polarity inversion.
- the column inversion refers to the polarity of the pixel capacitance Clc of the same column in two adjacent frames.
- the polarity of the first column of pixel capacitors Clc in the first frame is “+” polarity.
- the polarity of the second frame is "-" polarity
- the polarity of the third frame is "+” polarity
- the polarity of the fourth frame is "-" polarity...
- the frame Inversion means that all pixels have different polarities in adjacent frames, and all pixels have the same polarity in the same frame.
- the driving method includes the following steps:
- the gate driver 110 inputs the turn-on voltage to the scan line one by one from the first direction in the first period, and the source driver 120 inputs the pixel voltage of the first polarity to the data line DL to charge the pixel capacitor Clc. .
- the first time period is a time of one frame, that is, a time of a frame.
- the first direction is a top-down direction
- the gate driver 110 inputs the turn-on voltage to the scan line one by one from the top to the bottom, that is, the gate driver 110 initially inputs the turn-on voltage to the first strip.
- Scanning line SL1 at this time, the thin film transistor connected to the first scanning line SL1 is turned on, so that the voltage input through the data line DL charges the liquid crystal capacitor connected to the first scanning line SL1, and after charging for a while, the gate The driver 110 inputs a turn-off voltage to the first scan line SL1.
- the turn-off voltage is a negative voltage.
- the gate driver 110 inputs an turn-on voltage to the second scan line, thereby inputting through the data line DL.
- the voltage charges the liquid crystal capacitor connected to the second scan line.
- the gate driver 110 inputs the turn-off voltage to the second scan line.
- the turn-off voltage is a negative voltage; next, the gate driver 110 inputs the turn-on voltage one by one to the third scan line, the fourth scan line, the fifth scan line, ..., the first scan line SLn-1; finally, the gate driver 110 is turned on.
- the voltage is applied to the first scan line SLn, so that the voltage input through the data line DL charges the liquid crystal capacitor connected to the first scan line SLn.
- the gate driver 110 After charging for a period of time, the gate driver 110 inputs the turn-off voltage to the first scan line. SLn, again, the turn-off voltage is a negative voltage, So far, the gate driver 110 completes the action of inputting the turn-on voltage to the scan line one by one from the first direction, and all the pixel capacitors Clc complete the charging operation.
- the first direction of the present invention may not be limited to the direction from top to bottom, and the first direction may also be from the bottom to the top direction, that is, the gate driver 110 initially inputs the turn-on voltage to the first scan line.
- the gate driver 110 inputs the turn-on voltage to the first scan line SLn-1, then the gate driver 110 inputs the turn-on voltage to the N-2th scan line, ..., and finally the gate driver 110 inputs the turn-on voltage to the first 1 scan line.
- the first direction is not limited to the relatively simple direction described above, and may also be a manner of scanning from the middle one scanning line to both sides.
- the gate driver 110 When the gate driver 110 inputs the turn-on voltage to a scan line, the thin film transistor connected to the scan line is turned on, and the source driver 120 inputs the pixel voltage of the first polarity to the data line DL, and the pixel on the data line DL at this time.
- the voltage is input into the pixel capacitor Clc to charge the pixel capacitor Clc.
- the polarity of the pixel voltage input by the pixel capacitors Clc of different columns is different, that is, the first polarity of the pixel voltage of different columns is different.
- the pixel voltage input by the first column of pixel capacitors Clc is “+” polarity
- the pixel voltage of the second column of pixel capacitors Clc is “-” polarity
- the pixel voltage of the third column of pixel capacitors Clc is “+”.
- the pixel voltage input to the fourth column of pixel capacitors Clc is "-" polarity
- the pixel voltage input to the pixel capacitor Clc of the Mth column is "+" polarity.
- the voltage input on the data line DL is input in the forward direction, that is, the image displayed in the first time period
- the data line DL is the first image corresponding to the upper side of the liquid crystal display panel.
- the pixel voltage is then input to the pixel voltage corresponding to the middle image of the liquid crystal display panel, and finally the pixel voltage corresponding to the lower image of the liquid crystal display panel is input.
- the gate driver 110 inputs the turn-on voltage to the scan line one by one from the first direction in the second period, and the source driver 120 inputs the pixel voltage of the second polarity to the data line DL to charge the pixel capacitor Clc. .
- the second time period is a time of one frame, that is, a time of a frame.
- the gate driver 110 inputs an on-voltage to the scan line one by one from top to bottom, and the source driver 120 inputs the pixel voltage of the second polarity to the data line DL.
- the second polarity is opposite to the first polarity, that is, when the pixel voltage input by the pixel capacitor Clc in the first period is “+” polarity, the pixel capacitance Clc is input during the second period of time.
- the pixel voltage is "-" polarity with respect to the voltage on the common electrode, thereby preventing polarization of the liquid crystal.
- the second polarity of the pixel voltage input by the pixel capacitance Clc of different columns is different.
- the pixel voltage input by the first column pixel capacitance Clc is “-” polarity
- the pixel voltage input by the second column pixel capacitance Clc is "+” polarity
- the pixel voltage input by the pixel capacitance Clc of the third column is "-" polarity
- the pixel voltage input by the pixel capacitance Clc of the fourth column is "+” polarity
- the input of the pixel capacitance Clc of the Mth column The pixel voltage is "-" polarity.
- the source driver 120 inputs the corresponding pixel capacitor Clc on the data line DL in the second period of time. Is a "-" polarity, at the beginning of the second time period, when the gate driver 110 inputs the turn-on voltage to the first scan line SL1, and at the same time, the gate driver 110 inputs the turn-off voltage to the second scan line - the first The scan line SLn, the turn-off voltage is a negative voltage, and the pixel voltage transmitted corresponding to the data line DL of the column pixel is a negative voltage with respect to the voltage on the common electrode, thereby charging the first pixel capacitor Clc of the column pixel capacitor Clc.
- the second pixel capacitance Clc-the Nth pixel capacitance Clc of the column pixel capacitor Clc increases leakage, and when the first scanning line SL1 is turned off, the column The first pixel capacitor Clc of the pixel capacitor Clc is charged, and the polarity is negative polarity.
- the second pixel capacitor Clc of the column pixel capacitor Clc-the Nth pixel capacitor Clc leaks the turn-on time of one scan line; then, the gate Driver 110 When the turn-on voltage is input to the second scan line, the gate driver 110 inputs the turn-off voltage to the first scan line SL1, the third scan line-the first scan line SLn, and the turn-off voltage is a negative voltage, corresponding to the column of pixels.
- the pixel voltage transmitted by the data line DL is a negative voltage with respect to the voltage on the common electrode, thereby charging the second pixel capacitor Clc of the column pixel capacitor Clc, since the gate and source voltage difference of the thin film transistor is reduced,
- the third pixel capacitance Clc of the column pixel capacitance Clc-the Nth pixel capacitance Clc increases the leakage current.
- the gate driver 110 inputs the turn-on voltage to the first scan line SLn- At 1 o'clock, the gate driver 110 inputs a turn-off voltage to the first scan line SL1 - the N-2th scan line, the first scan line SLn, and the turn-off voltage is a negative voltage, which is transmitted corresponding to the data line DL of the column of pixels.
- Pixel voltage phase The voltage on the common electrode is a negative voltage, thereby charging the N-1th pixel capacitor Clc of the column pixel capacitor Clc. Since the gate and source voltage difference of the thin film transistor is reduced, the Nth column of the pixel capacitor Clc is The pixel capacitance Clc increases the leakage current.
- the first scanning line SLn-1 is turned off, the The N-1th pixel capacitor Clc of the column pixel capacitor Clc is charged, and the polarity is negative polarity.
- the Nth pixel capacitor Clc of the column pixel capacitor Clc leaks the turn-on time of one scan line; finally, the gate driver 110 is turned on.
- the gate driver 110 When the voltage is applied to the first scan line SLn, the gate driver 110 inputs a turn-off voltage to the first scan line SL1 - the first scan line SLn-1, and the pixel voltage corresponding to the data line DL of the column pixel is relatively common to the common electrode The voltage is a negative voltage, thereby charging the Nth pixel capacitor Clc of the column pixel capacitor Clc.
- the first scan line SLn is turned off, the Nth pixel capacitor Clc of the column pixel capacitor Clc is charged, and the polarity is completed. It is negative polarity.
- the first pixel capacitor Clc of the column pixel capacitor Clc does not leak or leak less
- the second pixel capacitor Clc leaks a charging time
- the third pixel capacitor Clc leaks two charging times, ..., N- 1 pixel capacitor Clc leakage N-2 charging time, Nth pixel capacitor Clc leakage N-1 charging time, other columns of pixel capacitance Clc are similar, resulting in the brightness of the liquid crystal display panel from the second time period It turns dark from light to dark.
- the gate driver 110 inputs the turn-on voltage to the scan line one by one from the second direction in the third period, and the source driver 120 inputs the pixel voltage of the first polarity to the data line DL to charge the pixel capacitor Clc. .
- the third time period is a time of one frame, that is, a time of a frame.
- the second direction is a direction opposite to the first direction.
- the second direction is a direction from bottom to top
- the gate driver 110 inputs the turn-on voltage to the scan line one by one from bottom to top. That is, the gate driver 110 initially inputs the turn-on voltage to the first scan line SLn, at which time the thin film transistor connected to the first scan line SLn is turned on, so that the voltage input through the data line DL is connected to the first scan line. The liquid crystal capacitor on the SLn is charged. After charging for a period of time, the gate driver 110 inputs a turn-off voltage to the first scan line SLn. To prevent a large leakage current, the turn-off voltage is a negative voltage; then, the gate driver 110 is turned on.
- the voltage is applied to the first scan line SLn-1, so that the voltage input through the data line DL charges the liquid crystal capacitor connected to the first scan line SLn-1.
- the gate driver 110 After charging for a period of time, the gate driver 110 inputs the turn-off voltage to the first One scan line SLn-1, likewise, the turn-off voltage is a negative voltage; next, the gate driver 110 inputs the turn-on voltage one by one to the N-2th scan line, the N-3th scan line, and the N-4th line Scanning line ..., the first scanning line SL2; finally, the gate driver 110 inputs the turn-on voltage to the first scanning line, so that the voltage input through the data line DL charges the liquid crystal capacitor connected to the first scanning line, and is charged for a period of time.
- the gate driver 110 inputs a turn-off voltage to the first scan line, and similarly, the turn-off voltage is a negative voltage.
- the gate driver 110 The action of inputting the turn-on voltage to the scan line one by one is completed, and all the pixel capacitors Clc complete the charging operation.
- the gate driver 110 When the gate driver 110 inputs the turn-on voltage to a scan line, the thin film transistor connected to the scan line is turned on, and the source driver 120 inputs the pixel voltage to the data line DL, at which time the pixel voltage on the data line DL is input to the pixel. In the capacitor Clc, the pixel capacitor Clc is charged.
- the first polarity of the pixel voltage input by the pixel capacitors Clc of different columns is different, that is, the first polarity of the pixel voltages of different columns is different, for example,
- the pixel voltage input by the first column of pixel capacitors Clc is "+" polarity
- the pixel voltage of the second column of pixel capacitors Clc is "-" polarity
- the pixel voltage of the third column of pixel capacitors Clc is "+” polarity.
- the pixel voltage input to the pixel capacitor Clc of the fourth column is "-" polarity
- ..., the pixel voltage input by the pixel capacitor Clc of the Mth column is "+" polarity.
- the voltage input on the data line DL is reversely input, that is, an image displayed in a third time period, and the data line DL is first input to the image on the lower side of the liquid crystal display panel.
- the pixel voltage is then input to the pixel voltage corresponding to the middle image of the liquid crystal display panel, and finally the pixel voltage corresponding to the image on the upper side of the liquid crystal display panel is input.
- the gate driver 110 inputs the turn-on voltage to the scan line one by one from the second direction in the fourth period, and the source driver 120 inputs the pixel voltage of the second polarity to the data line DL to charge the pixel capacitor Clc. .
- the fourth time period is a time of one frame, that is, a time of a frame.
- the gate driver 110 inputs the turn-on voltage to the scan line one by one from the bottom to the top, and the source driver 120 inputs the pixel voltage of the second polarity to the data line DL.
- the second polarity is opposite to the first polarity, that is, when the pixel voltage input by the pixel capacitor Clc in the third period is “+” polarity, the pixel capacitor Clc is input during the fourth period of time.
- the pixel voltage is "-" polarity to prevent polarization of the liquid crystal.
- the second polarity of the pixel voltage input by the pixel capacitances CCl of different columns is different.
- the pixel voltage input by the first column of pixel capacitances Clc is “-” polarity
- the pixel capacitance of the second column is input by the pixel capacitance Clc.
- the pixel voltage is “+” polarity
- the pixel voltage input by the third column pixel capacitor Clc is “-” polarity
- the pixel voltage input by the fourth column pixel capacitor Clc is “+” polarity
- the pixel voltage input by Clc is "-" polarity.
- the source driver 120 inputs the corresponding pixel capacitor Clc on the data line DL in the fourth period. Is the "-" polarity, at the beginning of the fourth time period, the gate driver 110 is turned on.
- the gate driver 110 inputs a turn-off voltage to the first scan line - the Nth scan line, the turn-off voltage is a negative voltage, and the pixel voltage corresponding to the data line DL of the column of pixels is transmitted.
- the voltage on the common common electrode is a negative voltage, thereby charging the Nth pixel capacitor Clc of the column pixel capacitor Clc.
- the first pixel capacitor Clc is the first one.
- the pixel capacitance Clc-the N-1th pixel capacitance Clc increases the leakage current.
- the Nth pixel capacitance Clc of the column pixel capacitance Clc is charged, and the polarity is negative polarity.
- the first pixel capacitor Clc of the pixel capacitor Clc - the N-1th pixel capacitor Clc leaks the turn-on time of one scan line; then, when the gate driver 110 inputs the turn-on voltage to the first scan line SLn-1, the gate driver 110 inputs a shutdown voltage to the first scan line SL1 - the N-2th scan line, the first scan line SLn, the turn-off voltage is a negative voltage, and the pixel voltage corresponding to the data line DL of the column pixel is relatively common on the common electrode The voltage is a negative voltage, thus The N-1th pixel capacitor Clc of the column pixel capacitor Clc is charged.
- the first pixel capacitor Clc of the column pixel capacitor Clc is the N-2th pixel.
- the capacitance Clc increases the leakage current.
- the pixel capacitor Clc - the N-2th pixel capacitor Clc leaks the turn-on time of one scan line; ...;
- the gate driver 110 inputs the turn-on voltage to the first scan line SL2
- the gate driver 110 inputs the turn-off voltage to The first scan line SL1, the first scan line SL3-the first scan line SLn
- the turn-off voltage is a negative voltage
- the pixel voltage transmitted to the data line DL of the column pixel is a negative voltage with respect to the voltage on the common electrode. Therefore, the second pixel capacitor Clc of the column pixel capacitor Clc is charged. Since the gate and source voltage difference of the thin film transistor is reduced, the first pixel capacitor Clc of the column pixel capacitor Clc increases leakage.
- the gate driver 110 inputs the turn-on voltage to the first When scanning a line, the gate driver 110 inputs a turn-off voltage to the first scan line SL2-the first scan line SLn, and the pixel voltage corresponding to the data line DL of the column pixel is a negative voltage with respect to the voltage on the common electrode, thereby The first pixel capacitor Clc of the column pixel capacitor Clc is charged.
- the Nth pixel capacitor Clc of the column pixel capacitor Clc When the first scanning line is turned off, the first pixel capacitor Clc of the column pixel capacitor Clc is charged, and the polarity is negative. Therefore, the Nth pixel capacitor Clc of the column pixel capacitor Clc does not leak or leak less, and the N-1th pixel capacitor Clc leaks a charging time.
- the N-2th pixel capacitor Clc leaks two charging times, ..., the second pixel capacitor Clc leakage N-2 charging time, the first pixel capacitor Clc leakage N-1 charging time, the other column of pixel capacitance
- the Clc is similar, resulting in the brightness of the liquid crystal display panel being dimmed from light to dark from bottom to top in the fourth period of time.
- the fourth time period can compensate for the second time period, that is, the leakage time of the entire panel pixel capacitor Clc is relatively uniform, thereby achieving liquid crystal display by neutralizing the fourth time period and the second time period.
- the brightness of the upper and lower sides of the panel is reduced more evenly, which improves the display effect.
- the third time period can also compensate for the leakage of the first time, thereby achieving uniform brightness of the liquid crystal display panel.
- the first polarity is opposite to the second polarity
- the second direction is opposite to the first direction, thereby, the third time period and the fourth time period of the liquid crystal display panel
- the brightness can compensate for the brightness of the liquid crystal display panel in the first time period and the second time period, which is beneficial to the uniform brightness of the entire liquid crystal display panel and improves the display effect of the screen.
- the first time period, the second time, the third time, and the fourth time period constitute a driving period of the liquid crystal display panel, so that the gate driver 110 and the source driver 120 of the liquid crystal display panel are The corresponding action is cyclically executed according to the first time period, the second time period, the third time period, and the fourth time period.
- the first time period, the second time period, the third time period, and the fourth time period are arranged in chronological order, that is, the first time period is in the second time period. In front, the second time period is in front of the third time period, the third time period is in front of the fourth time period, and the fourth time period is last.
- the present invention is not limited thereto.
- the third time period, the fourth time period, the first time period, and the second time period may also be used as a chronological order. arrangement.
- the first polarity may be different in different columns.
- the first polarity of the pixel capacitance Clc of the first column in the first period is “+” polarity
- the first polarity of the two columns of pixel capacitors Clc is "-" polarity
- the first polarity of the third column of pixel capacitors Clc is "+” polarity
- the first polarity of the fourth column of pixel capacitors Clc is "-" Polarity
- the first polarity of the pixel capacitance Clc of the Mth column is "+” polarity
- the second polarity may be different in different columns.
- the first polarity when the polarity is reversed to frame inversion, the first polarity is a "+" polarity, and the second polarity is a "-" polarity.
- the polarity of all the pixel capacitors in the first time period, is “+” polarity, and in the second time period, the polarity of all the pixel capacitors is “-” polarity.
- the first polarity is also It may be a "-" polarity and the second polarity is a "+” polarity.
- the “+” polarity and the “ ⁇ ” polarity are relative to the voltage on the common electrode of the liquid crystal capacitor as a reference voltage, that is, when the voltage on the pixel electrode of the liquid crystal capacitor is greater than the voltage on the common electrode.
- the liquid crystal capacitor or the pixel electrode has a "+" (positive) polarity
- the liquid crystal capacitor or the pixel electrode has a "-" (negative) polarity.
- the first time period further includes a fifth time period, in which the gate driver and the source driver perform the same action according to the first time period, That is, in the fifth period, the gate driver inputs the turn-on voltage to the scan line one by one from the first direction, and the source driver inputs the pixel voltage to the data line to charge the pixel capacitor, and the pixel voltage is in the fifth period
- the polarity of the pixel voltage is the same in the first time period
- the second time period further includes a sixth time period during which the gate driver and the source driver perform the same according to the second time period
- the third time period further includes a seventh time period, in which the gate driver and the source driver perform the same action according to the third time period
- the fourth time period further includes In the eighth period of time, the gate driver and the source driver perform the same action according to the fourth period of time during the eighth period of time.
- the chronological order of the first time period - the eighth time period may be, for example, a first time period, a second time period, a fifth time period, a sixth time period, and a third
- the sequence of the time period, the fourth time period, the seventh time period, and the eighth time period may also be a first time period, a fifth time period, a second time period, a sixth time period, a third time period, and a seventh The order of the time period, the fourth time period, and the eighth time period.
- the first period of time - the eighth period of time constitutes one driving period of the liquid crystal display panel.
- the second time period further includes 2k time segments
- the fourth time period further includes 2j time segments, and adjacent to the 2k time segments.
- the gate driver and the source driver perform the same action according to the first time period and the second time period, and the gate driver and the source driver are adjacent to the two time periods in the 2j time period according to the third time.
- the first time period, the second time period, the 2k time period, the third time period, the fourth time period, and the 2j time period constitute one driving period of the liquid crystal display panel.
- the present invention has the following advantages:
- the pixel capacitance of the same column is the same polarity in the same time period, the first polarity is opposite to the second polarity, and the second direction is opposite to the first direction, thereby, the brightness of the liquid crystal display panel in the third time period and the fourth time period
- the brightness of the liquid crystal display panel in the first time period and the second time period can be compensated, which is beneficial to the uniform brightness of the entire liquid crystal display panel and improves the display effect of the screen.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
Description
Claims (10)
- 一种液晶显示面板的驱动方法,所述液晶显示面板包括栅极驱动器、N条扫描线、源极驱动器、M条数据线、多数个像素电容,其中N、M≥2,其中,所述驱动方法包括:在第一时间段所述栅极驱动器从第一方向逐条输入开启电压给所述扫描线,所述源极驱动器输入第一极性的像素电压给所述数据线以对所述像素电容进行充电;在第二时间段所述栅极驱动器从所述第一方向逐条输入开启电压给所述扫描线,所述源极驱动器输入第二极性的像素电压给所述数据线以对所述像素电容进行充电;在第三时间段所述栅极驱动器从第二方向逐条输入开启电压给所述扫描线,所述源极驱动器输入所述第一极性的像素电压给所述数据线以对所述像素电容进行充电;在第四时间段所述栅极驱动器从所述第二方向逐条输入开启电压给所述扫描线,所述源极驱动器输入所述第二极性的像素电压给所述数据线以对所述像素电容进行充电;其中,同一列所述像素电容在同一时间段为同极性,所述第一极性与所述第二极性相反,所述第二方向与所述第一方向相反。
- 如权利要求1所述的液晶显示面板的驱动方法,其中,所述第一时间段、所述第二时间段、所述第三时间段、第四时间段构成液晶显示面板的一个驱动周期。
- 如权利要求2所述的液晶显示面板的驱动方法,其中,所述第一时间段、所述第二时间段、所述第三时间段、所述第四时间段是以时间顺序排列;或者,所述第三时间段、所述第四时间段、所述第一时间段、所述第二时间段是以时间顺序排列。
- 如权利要求1所述的液晶显示面板的驱动方法,其中,所述第一时间段后面还包括第五时间段,在所述第五时间段所述栅极驱动器和所述源极驱动器依照所述第一时间段执行相同的动作;所述第二时间段后面还包括第六时间段,在所述第六时间段所述栅极驱动器和所述源极驱动器依照所述第二时间段执行相同的动作;所述第三时间段后面还包括第七时间段,在所述第七时间段所述栅极驱动器和所述源极驱动器依照所述第三时间段执行相同的动作;所述第四时间段后面还包括第八时间段,在所述第八时间段所述栅极驱动器和所述源极驱动器依照第四时间段执行相同的动作。
- 如权利要求4所述的液晶显示面板的驱动方法,其中,所述第一时间段-所述第八时间段构成液晶显示面板的一个驱动周期。
- 如权利要求1所述的液晶显示面板的驱动方法,其中,所述第二时间段后面还包括2k个时间段,所述第四时间段后面还包括2j个时间段,在所述2k个时间段内相邻两个时间段所述栅极驱动器和所述源极驱动器依照所述第一时间段和所述第二时间段执行相同的动作,在所述2j个时间段内相邻两个时间段所述栅极驱动器和所述源极驱动器依照所述第三时间段和第四时间段执行相同的动作,其中,所述k和所述j相等,所述k和所述j为正整数。
- 如权利要求1所述的液晶显示面板的驱动方法,其中,所述第一时间段、所述第二时间段、所述第三时间段、所述第四时间段各为一个帧。
- 如权利要求1所述的液晶显示面板的驱动方法,其中,所述第一方向为从上往下方向,所述第二方向为从下往上方向;或者,所述第一方向为从下往上方向,所述第二方向为从上往下方向。
- 如权利要求1所述的液晶显示面板的驱动方法,其中,所述第一极性为正极性,所述第二极性为负极性;或者,所述第一极性为负极性,所述第二 极性为正极性。
- 如权利要求1所述的液晶显示面板的驱动方法,其中,所述像素电容的极性反转方式为列反转或者帧反转。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020197026421A KR102216437B1 (ko) | 2017-02-27 | 2017-03-18 | 액정 디스플레이 패널의 구동 방법 |
EP17897720.3A EP3588482A4 (en) | 2017-02-27 | 2017-03-18 | METHOD OF CONTROLLING A LIQUID CRYSTAL DISPLAY PANEL |
US15/526,732 US10223989B2 (en) | 2017-02-27 | 2017-03-18 | Driving method of liquid crystal display panel |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710109614.7 | 2017-02-27 | ||
CN201710109614.7A CN106782415B (zh) | 2017-02-27 | 2017-02-27 | 一种液晶显示面板的驱动方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2018152905A1 true WO2018152905A1 (zh) | 2018-08-30 |
Family
ID=58959325
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2017/077161 WO2018152905A1 (zh) | 2017-02-27 | 2017-03-18 | 一种液晶显示面板的驱动方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US10223989B2 (zh) |
EP (1) | EP3588482A4 (zh) |
KR (1) | KR102216437B1 (zh) |
CN (1) | CN106782415B (zh) |
WO (1) | WO2018152905A1 (zh) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108121095B (zh) * | 2017-12-28 | 2020-02-18 | 深圳市华星光电技术有限公司 | 液晶显示器及其驱动方法 |
CN110728959A (zh) * | 2018-07-17 | 2020-01-24 | 夏普株式会社 | 液晶显示装置 |
CN109841197B (zh) * | 2019-03-07 | 2021-04-16 | 南京中电熊猫液晶显示科技有限公司 | 一种液晶显示装置及其扫描驱动方法 |
CN110322827B (zh) * | 2019-08-15 | 2022-05-10 | 成都辰显光电有限公司 | 一种显示面板的数字驱动方法和显示面板 |
US11189241B2 (en) * | 2020-03-27 | 2021-11-30 | Tcl China Star Optoelectronics Technology Co., Ltd | Method for charging pixels and display panel |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003288055A (ja) * | 2002-03-27 | 2003-10-10 | Sharp Corp | 表示装置およびその駆動方法 |
CN1457449A (zh) * | 2001-02-05 | 2003-11-19 | 松下电器产业株式会社 | 液晶显示装置及其驱动方法 |
CN1691110A (zh) * | 2004-03-24 | 2005-11-02 | 三洋电机株式会社 | 抑制亮度不均、浓淡不均的显示装置和显示装置控制方法 |
CN101271659A (zh) * | 2006-09-29 | 2008-09-24 | 卡西欧计算机株式会社 | 有源矩阵型显示装置和驱动方法 |
CN101315749A (zh) * | 2008-06-26 | 2008-12-03 | 上海广电光电子有限公司 | 液晶显示器的驱动方法 |
CN102804252A (zh) * | 2009-06-22 | 2012-11-28 | 夏普株式会社 | 液晶显示装置及其驱动方法 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6496172B1 (en) * | 1998-03-27 | 2002-12-17 | Semiconductor Energy Laboratory Co., Ltd. | Liquid crystal display device, active matrix type liquid crystal display device, and method of driving the same |
KR100631112B1 (ko) * | 1999-09-04 | 2006-10-04 | 엘지.필립스 엘시디 주식회사 | 인버젼 방식의 액정패널 구동방법 및 장치 |
JP2001209027A (ja) * | 2000-01-25 | 2001-08-03 | Mitsubishi Electric Corp | 液晶表示装置およびその駆動方法 |
JP4559091B2 (ja) * | 2004-01-29 | 2010-10-06 | ルネサスエレクトロニクス株式会社 | 表示装置用駆動回路 |
JP2005250382A (ja) * | 2004-03-08 | 2005-09-15 | Seiko Epson Corp | 電気光学装置の駆動方法、電気光学装置および電子機器 |
KR20070037105A (ko) * | 2005-09-30 | 2007-04-04 | 엘지.필립스 엘시디 주식회사 | 액정 표시 장치 및 그의 구동 방법 |
KR101386365B1 (ko) * | 2006-11-30 | 2014-04-16 | 엘지디스플레이 주식회사 | 액정표시장치와 그 구동 방법 |
JP2011018020A (ja) * | 2009-06-12 | 2011-01-27 | Renesas Electronics Corp | 表示パネルの駆動方法、ゲートドライバ及び表示装置 |
US20130057598A1 (en) * | 2010-06-02 | 2013-03-07 | Akihisa Iwamoto | Display panel, display device, and method of driving the same |
WO2014041965A1 (ja) * | 2012-09-11 | 2014-03-20 | シャープ株式会社 | 表示装置ならびにその駆動回路および駆動方法 |
CN104714319B (zh) * | 2014-12-23 | 2017-11-14 | 上海中航光电子有限公司 | 一种液晶显示面板及其显示装置 |
KR20160082401A (ko) * | 2014-12-26 | 2016-07-08 | 삼성디스플레이 주식회사 | 표시 패널의 구동 방법 및 이를 수행하기 위한 표시 장치 |
CN105047115B (zh) * | 2015-08-10 | 2018-03-27 | 武汉华星光电技术有限公司 | 检测驱动电路、检测驱动装置及检测方法 |
CN105511184B (zh) * | 2016-01-13 | 2019-04-02 | 深圳市华星光电技术有限公司 | 液晶显示面板及其驱动方法 |
US9762191B1 (en) * | 2016-04-22 | 2017-09-12 | Solomon Systech Limited | System and method for offset cancellation for driving a display panel |
-
2017
- 2017-02-27 CN CN201710109614.7A patent/CN106782415B/zh active Active
- 2017-03-18 KR KR1020197026421A patent/KR102216437B1/ko active IP Right Grant
- 2017-03-18 WO PCT/CN2017/077161 patent/WO2018152905A1/zh active Application Filing
- 2017-03-18 US US15/526,732 patent/US10223989B2/en active Active
- 2017-03-18 EP EP17897720.3A patent/EP3588482A4/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1457449A (zh) * | 2001-02-05 | 2003-11-19 | 松下电器产业株式会社 | 液晶显示装置及其驱动方法 |
JP2003288055A (ja) * | 2002-03-27 | 2003-10-10 | Sharp Corp | 表示装置およびその駆動方法 |
CN1691110A (zh) * | 2004-03-24 | 2005-11-02 | 三洋电机株式会社 | 抑制亮度不均、浓淡不均的显示装置和显示装置控制方法 |
CN101271659A (zh) * | 2006-09-29 | 2008-09-24 | 卡西欧计算机株式会社 | 有源矩阵型显示装置和驱动方法 |
CN101315749A (zh) * | 2008-06-26 | 2008-12-03 | 上海广电光电子有限公司 | 液晶显示器的驱动方法 |
CN102804252A (zh) * | 2009-06-22 | 2012-11-28 | 夏普株式会社 | 液晶显示装置及其驱动方法 |
Also Published As
Publication number | Publication date |
---|---|
US10223989B2 (en) | 2019-03-05 |
KR102216437B1 (ko) | 2021-02-18 |
EP3588482A1 (en) | 2020-01-01 |
EP3588482A4 (en) | 2020-08-12 |
CN106782415A (zh) | 2017-05-31 |
CN106782415B (zh) | 2019-03-12 |
US20180286331A1 (en) | 2018-10-04 |
KR20190116405A (ko) | 2019-10-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2018152905A1 (zh) | 一种液晶显示面板的驱动方法 | |
JP6360892B2 (ja) | アレイ基板及び液晶表示装置 | |
US10180760B2 (en) | Method and device for driving touch display panel with multiple display time periods and multiple touch time periods in time period for displaying each image frame, and touch display device | |
US9378698B2 (en) | Pixel driving circuit and method, array substrate and liquid crystal display apparatus | |
CN104977763B (zh) | 一种驱动电路及其驱动方法、液晶显示器 | |
US20080316159A1 (en) | Liquid crystal display device with scanning controlling circuit and driving method thereof | |
US20060119755A1 (en) | Liquid crystal display device | |
US10559271B2 (en) | Liquid crystal display device | |
US20080291144A1 (en) | Liquid crystal display having common voltage modulator | |
WO2018233368A1 (zh) | 像素电路、显示装置以及驱动方法 | |
US20200035183A1 (en) | Array substrate, display panel and display device | |
US20080122875A1 (en) | Liquid crystal display device and driving circuit and driving method of the same | |
US20180210301A1 (en) | Liquid crystal panel and liquid crystal display apparatus | |
WO2015188390A1 (zh) | 显示装置及其驱动方法 | |
US9875702B2 (en) | Pixel structure, method for driving pixel structure, display panel and display device | |
CN107121863B (zh) | 液晶显示面板及液晶显示装置 | |
CN107402462B (zh) | 液晶显示面板及控制方法 | |
US7804471B2 (en) | Liquid crystal display and driving method and driving circuit thereof | |
US9412322B2 (en) | Liquid crystal display device and method for driving same | |
CN106406614B (zh) | 一种分时驱动电路及显示面板 | |
CN106652965A (zh) | 像素驱动方法、栅极驱动器、以及显示装置 | |
CN107068690B (zh) | 一种阵列基板,阵列基板的像素电极充电方法和显示装置 | |
CN109686331A (zh) | 液晶像素电路、其驱动方法、液晶显示面板及显示装置 | |
JPH09236790A (ja) | 液晶表示装置およびその駆動方法 | |
US9430984B2 (en) | Display panel driving circuit, driving method thereof, and display device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 15526732 Country of ref document: US |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 17897720 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 20197026421 Country of ref document: KR Kind code of ref document: A |
|
ENP | Entry into the national phase |
Ref document number: 2017897720 Country of ref document: EP Effective date: 20190927 |