WO2012113166A1 - 液晶显示器及其驱动方法 - Google Patents
液晶显示器及其驱动方法 Download PDFInfo
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- WO2012113166A1 WO2012113166A1 PCT/CN2011/071706 CN2011071706W WO2012113166A1 WO 2012113166 A1 WO2012113166 A1 WO 2012113166A1 CN 2011071706 W CN2011071706 W CN 2011071706W WO 2012113166 A1 WO2012113166 A1 WO 2012113166A1
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- data lines
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- liquid crystal
- crystal display
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3614—Control of polarity reversal in general
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3685—Details of drivers for data electrodes
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0243—Details of the generation of driving signals
- G09G2310/0248—Precharge or discharge of column electrodes before or after applying exact column voltages
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- 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
- G09G2310/0297—Special arrangements with multiplexing or demultiplexing of display data in the drivers for data electrodes, in a pre-processing circuitry delivering display data to said drivers or in the matrix panel, e.g. multiplexing plural data signals to one D/A converter or demultiplexing the D/A converter output to multiple columns
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
- G09G2330/021—Power management, e.g. power saving
- G09G2330/023—Power management, e.g. power saving using energy recovery or conservation
Definitions
- the present invention relates to a liquid crystal display and a method of driving the same.
- LCD monitors have become widely used in a variety of electronic devices such as televisions, mobile phones, personal digital assistants (PDAs), digital cameras, computer screens or notebook screens.
- PDAs personal digital assistants
- a display with a high resolution color screen is a display with a high resolution color screen.
- FIG. 1 is a circuit diagram of a prior art liquid crystal display 10.
- the liquid crystal display 10 includes a timing controller 14, a data driver 16, and a scan driver (gate Driver) 18 and liquid crystal display panel 20.
- the scan driver 18 When the frequency signal pulse generated by the timing controller 14 is transmitted to the scan driver 18, the scan driver 18 generates a scan signal to the liquid crystal display panel 20, while the timing controller 14 issues a frequency signal pulse to the data driver 16, and the data
- the driver 16 outputs a gray scale voltage to the pixel unit 22 of the liquid crystal display panel 20.
- Each pixel unit 22 of the liquid crystal display panel 20 can be equivalent to a resistor and a capacitor (referred to as a liquid crystal capacitor). Circuit combination.
- the gray scale voltage charges the capacitor to the desired voltage level, so that the liquid crystal molecules between the capacitors display different gray scales according to the voltage level.
- the liquid crystal display panel 20 usually uses dot inversion (dot Inversion) is driven by the driver.
- the driving method is to transmit gray scale voltages of opposite polarities to adjacent two pixel units 22. When the level of the gray scale voltage is greater than the common voltage, the gray scale voltage is positive polarity, and vice versa, when the gray scale voltage level is less than When the voltage is common, the gray scale voltage is negative.
- the common voltage is half of the supply voltage applied to the data driver 16.
- FIG. 2 is a schematic diagram of gray scale voltage and gray scale distribution.
- the data driver 16 In order to respectively display black and white on the liquid crystal display panel 20 by using a positive gray scale voltage, the data driver 16 outputs a potential V1 away from the common voltage and a potential V2 close to the common voltage, respectively. In contrast, in order to respectively display black and white on the liquid crystal display panel 20 by using a negative gray scale voltage, the data driver 16 outputs a potential V4 away from the common voltage and a potential V3 close to the common voltage, respectively. If a pixel unit receives a positive gray scale voltage V1 and displays black at a certain screen, and maintains the same gray scale at the next screen, the pixel unit needs to receive a negative gray scale voltage V4. In order to change the potential applied to the pixel unit from V1 to V4 in a very short charging time, a large current must be generated, thus increasing power consumption. In the era of environmental protection, how to reduce power consumption is the goal of the industry.
- the invention provides a liquid crystal display comprising a plurality of data lines, a data driver and a plurality of pixel units. Each data line is connected to a pixel unit, the data driver includes a plurality of amplifiers, and the data driver is configured to write a gray scale voltage on adjacent data lines in a dot inversion driving manner, the liquid crystal display further including a connection a switching circuit between the data driver and the plurality of data lines, the switching circuit including a first charge sharing capacitor, a second charge sharing capacitor, a plurality of first switches, a plurality of second switches, a plurality of third switches, and a plurality of The fourth switch.
- the plurality of first switches are electrically connected to the odd-numbered data lines for turning on the odd-numbered data lines and the first charge-sharing capacitors for a first predetermined period, and are turned off during a second predetermined period, and The odd number data line and the second charge sharing capacitor are turned on during a third predetermined period.
- the plurality of second switches are electrically connected to the even-numbered data lines for turning on the even-numbered data lines and the second charge-sharing capacitors during the first predetermined period, and are disconnected during the second predetermined period And turning on the even-numbered data line and the first charge-sharing capacitor during the third predetermined period.
- Each of the third switches is disposed between two adjacent data lines for turning on the even-numbered data lines and the odd-numbered data lines during the second predetermined period.
- Each fourth switch is coupled between each amplifier and a corresponding data line for conducting the amplifier and the plurality of pixel units during a charge.
- the liquid crystal display further includes a timing controller, wherein the timing controller is configured to generate a first switching signal and a second switching signal, wherein the first switching signal is used to control the first switch and the second The switch is turned on and off, and the second switch signal is used to control the on/off of the third switch.
- the data driver is adapted to write a gray scale voltage to the data line during charging, the three predetermined periods being set between adjacent two charging periods.
- the timing controller further generates a drive signal for controlling the on/off of the fourth switch.
- the first switch and the second switch are both bidirectional switches, and the third switch and the fourth switch are unidirectional switches.
- the invention provides a liquid crystal display comprising a plurality of data lines, a data driver, and a plurality of pixel units. Each data line is connected to a pixel unit, and the data driver is configured to write a gray scale voltage on the adjacent data line in a dot inversion driving manner, the liquid crystal display further comprising a data driver and a plurality of data lines
- the switching circuit includes a first charge sharing capacitor, a second charge sharing capacitor, a plurality of first switches, a plurality of second switches, and a plurality of third switches.
- the plurality of first switches are electrically connected to the odd-numbered data lines for turning on the odd-numbered data lines and the first charge-sharing capacitors for a first predetermined period, and are turned off during a second predetermined period, and The odd number data line and the second charge sharing capacitor are turned on during a third predetermined period.
- the plurality of second switches are electrically connected to the even-numbered data lines for turning on the even-numbered data lines and the second charge-sharing capacitors during the first predetermined period, during the second predetermined period Turning on, and turning on the even-numbered data line and the first charge-sharing capacitor during the third predetermined period.
- Each of the third switches is disposed between two adjacent data lines for turning on the even-numbered data lines and the odd-numbered data lines during the second predetermined period.
- the liquid crystal display further includes a timing controller, wherein the timing controller is configured to generate a first switching signal and a second switching signal, wherein the first switching signal is used to control the first switch and the second The switch is turned on and off, and the second switch signal is used to control the on/off of the third switch.
- the data driver is adapted to write a gray scale voltage to the data line during charging, the three predetermined periods being set between adjacent two charging periods.
- the first switch and the second switch are both bidirectional switches, and the third switch is a unidirectional switch.
- the switching circuit is integrated within the data driver.
- the present invention further provides a liquid crystal display driving method, the liquid crystal display comprising a plurality of data lines, a data driver and a plurality of pixel units, each of the data lines being connected to a pixel unit, wherein the data driver is used for driving in a dot inversion
- a method of writing a gray scale voltage on an adjacent data line comprising the steps of: the liquid crystal display providing a plurality of first switches electrically connected to the odd number data lines, electrically connecting the even number data lines And a plurality of second switches and a plurality of third switches disposed between the two adjacent data lines.
- the three predetermined periods occur between two adjacent charging periods, the charging period corresponding to a period during which the data driver writes a gray scale voltage to the data line.
- the first switch and the second switch are both bidirectional switches, and the third switch is a unidirectional switch.
- the liquid crystal display further provides a plurality of fourth switches, wherein the data driver comprises a plurality of amplifiers, each fourth switch being connected between each amplifier and a corresponding data line for guiding during charging Passing the amplifier and the plurality of pixel units.
- the plurality of fourth switches are unidirectional switches.
- the liquid crystal display of the present invention further includes a switching circuit that causes the voltage of the data line to be converted to the magnitude of the gray scale voltage to be written in advance before the data line is written to the gray scale voltage.
- the data driver only needs a small bias current to charge the pixel unit on the data line to the desired level, so the power consumption of the liquid crystal display of the present invention is low.
- the liquid crystal display of the present invention further includes a switching circuit that causes the voltage of the data line to be converted to the magnitude of the gray scale voltage to be written in advance before the data line is written to the gray scale voltage.
- the data driver only needs a small bias current to charge the pixel unit on the data line to the desired level, so the power consumption of the liquid crystal display of the present invention is low.
- FIG. 1 is a circuit diagram of a prior art liquid crystal display.
- FIG. 2 is a schematic diagram of gray scale voltage and gray scale distribution of the liquid crystal display shown in FIG. 1.
- FIG. 3 is a circuit diagram of a preferred embodiment of a liquid crystal display of the present invention.
- FIG. 4 is a circuit diagram of a switching circuit, a data driver, and a liquid crystal display panel of the liquid crystal display shown in FIG.
- Fig. 5 is a timing chart for controlling a control signal of the switching circuit shown in Fig. 4.
- FIG. 3 is a schematic circuit diagram of a liquid crystal display device 100 according to a preferred embodiment of the present invention.
- the liquid crystal display 100 can be a screen of a personal computer or a screen of a notebook computer.
- the liquid crystal display 100 includes a switch circuit 102, a timing controller 104, a data driver 106, a scan driver 108, and a liquid crystal display panel 110.
- the scan driver 108 When the vertical synchronizing signal generated by the timing controller 104 is transmitted to the scan driver 108, the scan driver 108 generates a scan signal to be transmitted to the liquid crystal display panel 110 via the scan lines G1-Gn, while the timing controller 104 issues a horizontal sync signal.
- the data driver 106 outputs the gray scale voltage to the pixel unit 120 of the liquid crystal display panel 110 via the data lines D1-Dm.
- the timing controller 104 further outputs a first switch signal S1, a second switch signal S2, and a drive signal Vdrive to the switch circuit 102.
- Each pixel unit 120 includes a liquid crystal capacitor 124 (please refer to FIG. 4 together) for displaying an image.
- the data driver 106 outputs a bias current such that the liquid crystal capacitance 124 of the pixel unit 120 of one row is charged to the level of the gray scale voltage to display different gray levels.
- the liquid crystal display panel 110 is using dot inversion (dot Inversion) is driven by the driver.
- the adjacent two pixel units 120 are receiving gray scale voltages of opposite polarities.
- the switch circuit 102 is disposed between the data driver 106 and the plurality of data lines D1-Dm. Its function is to control the electrical connection relationship of each of the data lines D1-Dm before the pixel unit 120 is charged every time, so that the voltage of the data line is forwarded. The size of the gray scale voltage to be written is changed to achieve power saving.
- FIG. 4 is a circuit diagram of the switch circuit 102, the data driver 106, and the liquid crystal display panel 110 of FIG. 3.
- FIG. 5 is a timing chart of control signals of the switch circuit 102 of FIG.
- the data driver 106 includes a plurality of amplifiers 122.
- the switch circuit 102 includes a plurality of first switches T1 electrically connected to the odd-numbered data lines D2s-1, a plurality of second switches T2 electrically connected to the even-numbered data lines D2s, and a plurality of adjacent data lines D2s.
- the first switch T1 and the second switch T2 are both bidirectional switches.
- the third switch T3 is a unidirectional switch.
- the first switch T1 and the second switch T2 are controlled by the first switching signal S1
- the third switch T3 is controlled by the second switching signal S2
- the fourth switch T4 is controlled by the driving signal Vdrive. Since the liquid crystal display 100 is driven by dot inversion, the polarities of the gray scale voltages transmitted by the odd-numbered data lines D2s-1 and the even-numbered data lines D2s are opposite. Taking FIG.
- the odd-numbered data line D2s-1 transmits a negative gray scale voltage
- the even-numbered data line D2s transmits a positive gray scale voltage
- the odd-numbered data line D2s-1 transmits a positive gray scale voltage
- the even-numbered data line D2s transmits a negative gray scale voltage.
- the switching circuit 102 will adjust the levels of the odd and even data lines D2s-1, D2s to save power consumption, please refer to the following Description.
- the drive signal Vdrive that controls the fourth switch T4 is at a low level, and the fourth switch T4 is turned off, so the data driver 106 does not write the gray scale voltage to the data lines D1-Dm.
- the fourth switch T4 is turned off, and the first switch T1, the second switch T2, and the third switch T3 are also turned off, so the data driver 106 does not write the gray scale voltage to the data lines D1-Dm during this period.
- the switch circuit 102 also does not operate, and the data driver 106 latches the gray scale voltage of the next charging period t5-t6 to write the gray scale voltage to the data lines D1-Dm during the next charging period t5-t6.
- the third switch T3 receives the second switching signal S2 at a low level (eg, a ground potential), and the first switch T1 and the second switch T2 receive the first level V1.
- the plurality of third switches T3 are turned off.
- the plurality of first switches T1 turn on the odd-numbered data lines D2s-1 and the first charge-sharing capacitor C1.
- the plurality of second switches T2 turn on the even-numbered data line D2s and the second charge-sharing capacitor C2.
- the capacitance values of the first sharing capacitor C1 and the second sharing capacitor C2 are much larger than the load capacitances of the data lines D2s, D2s-1 and the liquid crystal capacitors 124 of the pixel unit 120, so the odd-numbered data lines D2s-1 The charge is transferred to the first sharing capacitor C1, and the charge on the even data line D2s is transferred to the second sharing capacitor C2.
- the odd-numbered data line D2s-1 transmits the negative-order gray-scale voltage during the charging period t0-t1
- the potential of the first shared capacitor C1 after the charge sharing is lower than the common voltage
- the even-numbered data line D2s is The positive gray scale voltage is transmitted, so the potential of the second shared capacitor C2 after the charge sharing is higher than the common voltage.
- the third switch T3 receives the second switch signal S2 at a high level, and the first switch T1 and the second switch T2 receive the second level (eg, ground potential) A switching signal S1.
- the plurality of first switches T1 and the plurality of second switches T2 are turned off, and the plurality of third switches T3 turn on all the data lines such that the odd-numbered data lines D2s-1 and the even-numbered data lines D2s are at the same level due to electrical connection .
- the third switch T3 receives the second switch signal S2 at a low level, and the first switch T1 and the second switch T2 receive the first switch signal S1 at the third level V2. .
- the plurality of third switches T3 are turned off.
- the plurality of first switches T1 turn on the odd-numbered data line D2s-1 and the second charge-sharing capacitor C2.
- the plurality of second switches T2 turn on the even-numbered data line D2s and the first charge-sharing capacitor C1.
- the potential of the first sharing capacitor C1 is lower than the common voltage during the period t2-t3
- the potential of the second sharing capacitor C2 is higher than the common voltage, so before the next charging period (that is, the fourth predetermined period) t5-t6, the odd number
- the level of the data line D2s-1 is pulled up by the second charge sharing capacitor C2 slightly higher than the common voltage, and the level of the even number data line D2s is pulled lower by the first charge sharing capacitor C1 and slightly lower than the common voltage.
- the odd-numbered data line D2s-1 needs to transmit a positive gray scale voltage
- the even-numbered data line D2s needs to transmit a negative gray scale voltage.
- the level of the odd-numbered data line D2s-1 has been slightly higher than the common voltage, and the level of the even-numbered data line D2s is slightly lower than the common voltage, so the data driver 106 only needs a small bias current to allow
- the pixel unit 120 on the odd-numbered data line D2s-1 or the even-numbered data line D2s is charged to a desired level, so that the liquid crystal display of the present invention can reduce power consumption compared to the prior art.
- the liquid crystal display of the present invention is not limited to the above embodiments.
- the switch circuit 102 can also be integrated in the data driver 106, and the operation principle is the same.
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Description
Claims (15)
- 一种液晶显示器,其包括多条数据线、一数据驱动器和多个像素单元,每一数据线连接一像素单元,所述数据驱动器包括多个放大器,所述数据驱动器用来以点反转驱动方式在相邻数据线上写入灰阶电压,其特征在于:所述液晶显示器进一步包括一连接于数据驱动器与多条数据线之间的开关电路,上述开关电路包括:一第一电荷分享电容和一第二电荷分享电容;多个第一开关,电性连接奇数号数据线,用来在一第一预定期间导通所述奇数号数据线及所述第一电荷分享电容,在一第二预定期间断开,并在一第三预定期间导通所述奇数号数据线及所述第二电荷分享电容;多个第二开关,电性连接偶数号数据线,用来在所述第一预定期间导通所述偶数号数据线及所述第二电荷分享电容,在所述第二预定期间断开,并在所述第三预定期间导通所述偶数号数据线及所述第一电荷分享电容;多个第三开关,每一第三开关设置于两相邻的数据线之间,用来在所述第二预定期间导通所述偶数号数据线和奇数号数据线;以及多个第四开关,上述数据驱动器包括多个放大器,每一第四开关连接在每一放大器与对应数据线之间,用来在一充电期间导通所述放大器与所述多个像素单元。
- 根据权利要求1所述的液晶显示器,其特征在于:上述液晶显示器进一步包括一时序控制器,上述时序控制器用来产生一第一开关信号和一第二开关信号,上述第一开关信号用于控制上述第一开关和第二开关的通断,上述第二开关信号用于控制上述第三开关的通断。
- 根据权利要求1所述的液晶显示器,其特征在于:上述数据驱动器用于在充电期间写入灰阶电压至数据线,上述三个预定期间设于相邻两个充电期间之间。
- 根据权利要求1所述的液晶显示器,其特征在于:所述时序控制器进一步产生一用于控制上述第四开关通断的驱动信号。
- 根据权利要求1所述的液晶显示器,其特征在于:所述第一开关和第二开关均为双向开关,所述第三开关和所述第四开关为单向开关。
- 一种液晶显示器,其包括多条数据线、一数据驱动器和多个像素单元,每一数据线连接一像素单元,所述数据驱动器用来以点反转驱动方式在相邻数据线上写入灰阶电压,其特征在于:所述液晶显示器进一步包括一连接于数据驱动器与多条数据线之间的开关电路,上述开关电路包括:一第一电荷分享电容和一第二电荷分享电容;多个第一开关,电性连接奇数号数据线,用来在一第一预定期间导通所述奇数号数据线及所述第一电荷分享电容,在一第二预定期间断开,并在一第三预定期间导通所述奇数号数据线及所述第二电荷分享电容;多个第二开关,电性连接偶数号数据线,用来在所述第一预定期间导通所述偶数号数据线及所述第二电荷分享电容,在所述第二预定期间断开,并在所述第三预定期间导通所述偶数号数据线及所述第一电荷分享电容;以及多个第三开关,每一第三开关设置于两相邻的数据线之间,用来在所述第二预定期间导通所述偶数号数据线和奇数号数据线。
- 根据权利要求6所述的液晶显示器,其特征在于:上述液晶显示器进一步包括一时序控制器,上述时序控制器用来产生一第一开关信号和一第二开关信号,上述第一开关信号用于控制上述第一开关和第二开关的通断,上述第二开关信号用于控制上述第三开关的通断。
- 根据权利要求6所述的液晶显示器,其特征在于:上述数据驱动器用于在一充电期间写入灰阶电压至数据线,上述三个预定期间设于相邻两个充电期间之间。
- 根据权利要求6所述的液晶显示器,其特征在于:所述第一开关和第二开关均为双向开关,所述第三开关为单向开关。
- 根据权利要求6所述的液晶显示器,其特征在于:所述开关电路集成于所述数据驱动器之内。
- 一种液晶显示器驱动方法,所述液晶显示器包括多条数据线、一数据驱动器和多个像素单元,每一数据线连接一像素单元,所述数据驱动器用来以点反转驱动方式在相邻数据线上写入灰阶电压,其特征在于:提供一第一电荷分享电容、一第二电荷分享电容、电性连接奇数号数据线的多个第一开关、电性连接偶数号数据线的多个第二开关和设置于两相邻的数据线之间的多个第三开关;在所述第一预定期间,控制所述多个第一开关导通所述奇数号数据线及所述第一电荷分享电容,并控制所述多个第二开关导通所述偶数号数据线及所述第二电荷分享电容;在所述第二预定期间,控制所述多个第三开关导通所述偶数号数据线和奇数号数据线,控制所述多个第一开关断开所述奇数号数据线及所述第一电荷分享电容,并控制所述多个第二开关断开所述偶数号数据线及所述第二电荷分享电容;及在所述第三预定期间,控制所述多个第一开关导通所述奇数号数据线及所述第二电荷分享电容,并控制所述多个第二开关导通所述偶数号数据线及所述第一电荷分享电容。
- 根据权利要求11所述的液晶显示器驱动方法,其特征在于:上述三个预定期间发生于相邻两个充电期间之间,所述充电期间是上述数据驱动器将灰阶电压写入至数据线的期间。
- 根据权利要求12所述的液晶显示器驱动方法,其特征在于:所述第一开关和第二开关均为双向开关,所述第三开关为单向开关。
- 根据权利要求12所述的液晶显示器驱动方法,其特征在于:提供多个第四开关,上述数据驱动器包括多个放大器,每一第四开关连接在每一放大器与对应数据线之间,用来在充电期间导通所述放大器与所述多个像素单元。
- 根据权利要求14所述的液晶显示器驱动方法,其特征在于:所述多个第四开关为单向开关。
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KR102009647B1 (ko) | 2012-09-13 | 2019-10-21 | 엘지디스플레이 주식회사 | 액정표시장치 및 그 구동방법 |
CN103676256B (zh) | 2013-12-26 | 2016-03-02 | 合肥京东方光电科技有限公司 | 一种液晶显示面板的驱动方法、液晶显示面板及显示装置 |
TWI534791B (zh) * | 2014-10-31 | 2016-05-21 | 友達光電股份有限公司 | 液晶顯示裝置之時脈產生電路及其操作方法 |
CN107146587A (zh) * | 2017-06-21 | 2017-09-08 | 昆山龙腾光电有限公司 | 源极驱动电路及显示面板 |
CN110379393B (zh) * | 2018-08-10 | 2022-01-11 | 友达光电股份有限公司 | 显示装置与栅极驱动器 |
CN111415632B (zh) * | 2019-01-07 | 2022-07-26 | 咸阳彩虹光电科技有限公司 | 一种数据驱动方法和数据驱动装置 |
CN109817146B (zh) * | 2019-03-08 | 2023-02-28 | 京东方科技集团股份有限公司 | 一种显示面板、显示装置及驱动方法 |
CN110164396B (zh) * | 2019-06-12 | 2021-09-03 | 京东方科技集团股份有限公司 | 一种显示面板及其驱动方法、显示装置 |
CN113284427B (zh) * | 2021-05-28 | 2022-01-14 | 惠科股份有限公司 | 显示面板及拼接显示屏 |
CN114170984B (zh) * | 2021-11-30 | 2023-06-23 | 重庆惠科金渝光电科技有限公司 | 显示面板的驱动方法及显示面板 |
CN116758873B (zh) * | 2023-08-14 | 2023-11-28 | Tcl华星光电技术有限公司 | 一种驱动控制方法和显示装置 |
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