WO2019134612A1 - Liquid crystal display device and drive method therefor - Google Patents
Liquid crystal display device and drive method therefor Download PDFInfo
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- WO2019134612A1 WO2019134612A1 PCT/CN2018/125456 CN2018125456W WO2019134612A1 WO 2019134612 A1 WO2019134612 A1 WO 2019134612A1 CN 2018125456 W CN2018125456 W CN 2018125456W WO 2019134612 A1 WO2019134612 A1 WO 2019134612A1
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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
- G09G3/3696—Generation of voltages supplied to electrode drivers
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- the present application relates to a display device and a method of driving the same, and more particularly to a liquid crystal display device that can be applied to a large size and a method of driving the same.
- liquid crystal display devices which have gradually replaced traditional cathode ray tube display devices due to their superior characteristics such as light weight, low power consumption and no radiation. And applied to many kinds of electronic products, such as mobile phones, portable multimedia devices, notebook computers, LCD TVs and LCD screens, and the like.
- panel driving In the well-known art of liquid crystal display devices, panel driving generally has two modes, one is “common electrode DC voltage driving” and the other is “common electrode voltage modulation driving”.
- the pixel voltage is determined by the voltage difference between the data voltage and the common electrode voltage.
- the common electrode DC voltage driving the common electrode voltage is fixed, and therefore, the output voltage range of the source driver is large, and the voltage is increased. The power consumption of the source driver.
- the common electrode voltage modulation drive the common electrode voltage is constantly changing, so that the range of the output voltage of the source driver can be reduced, thereby reducing the power consumption of the source driver.
- the common electrode voltage modulation drive is not suitable for a large-sized panel because the large-area panel has a large common electrode area, which causes a large parasitic capacitance. Therefore, when the common electrode voltage changes, a section is required. Time can make the voltage of the common electrode reach the required correct voltage value, and the data voltage is still input to the pixel electrode during the time when the correct voltage value is not reached, so that the pixel voltage is not the voltage set by the system, which will cause the panel to generate Color shift phenomenon, which reduces the picture quality.
- the purpose of the application is to provide a liquid crystal display device and a driving method thereof, which can apply the method of common electrode voltage modulation driving to a large-sized panel, which can not only achieve the effect of reducing the power consumption of the source driver, but also does not produce color. Partial phenomenon.
- the present application proposes a driving method of a liquid crystal display device.
- the liquid crystal display device has a display panel and a driving circuit.
- the display panel includes a plurality of pixels, and the plurality of pixels are electrically connected to the driving circuit.
- the driving circuit has a source driver and a timing controller, and the timing controller controls the source driver. Outputting a plurality of data voltages and a common electrode voltage are transmitted to the plurality of pixels to display an image, wherein the voltage value of the common electrode voltage is a first voltage during the Nth frame time, and the voltage value of the common electrode voltage is at the N+1th
- the frame time is changed from the first voltage to a second voltage, and N is a positive integer greater than or equal to 1.
- the driving method includes: detecting that the voltage value of the common electrode voltage changes to the second voltage after the start of the (N+1)th frame a time difference; and controlling, by the timing controller, the source driver to delay the time difference to transmit the plurality of data voltages to the plurality of pixels after the start of the (N+1)th frame.
- the present application further provides a liquid crystal display device including a display panel and a driving circuit.
- the display panel includes a plurality of pixels, and the driving circuit is electrically connected to the plurality of pixels respectively.
- the driving circuit has a source driver and a timing controller, and the timing controller controls the source driver to output a plurality of data voltages and a common electrode voltage to be transmitted to the plurality of pixels.
- the pixel displays an image, wherein the voltage value of the common electrode voltage is a first voltage during a Nth frame time, and the voltage value of the common electrode voltage is changed from the first voltage to the second voltage in an N+1 frame time N is a positive integer greater than or equal to 1; wherein, the timing controller controls the source driver to delay transmitting a plurality of data voltages to a plurality of pixels after the start of the (N+1)th frame, wherein the time is a voltage value for detecting the common electrode voltage A time difference is changed to the second voltage after the start of the (N+1)th frame.
- the plurality of pixels respectively have a pixel electrode, a common electrode, and a plurality of liquid crystal molecules sandwiched between the pixel electrode and the common electrode.
- a plurality of data voltages are delivered to the plurality of pixel electrodes and the common electrode voltage is delivered to the common electrode.
- the driving circuit further has a gate driver coupled to the display panel by a plurality of scan lines, and the source driver is coupled to the plurality of pixels of the display panel through the plurality of data lines, and the gate is When the driver turns on the plurality of scan lines in sequence, the source driver transmits the plurality of data voltages to the plurality of pixels through the plurality of data lines, so that the display panel displays the image.
- the voltage value of the common electrode voltage is detected by a detection circuit to obtain the time difference.
- the timing controller controls the source driver not to transmit a plurality of data voltages to the plurality of pixels after the start of the (N+1)th frame and before the time difference.
- the first voltage is opposite in polarity to the second voltage.
- the timing controller is modified offline to cause the modified timing controller to control the source driver to delay transmitting the plurality of data voltages to the plurality of pixels after the beginning of the (N+1)th frame.
- the present application further provides a driving method of a liquid crystal display device.
- the liquid crystal display device has a display panel and a driving circuit.
- the display panel includes a plurality of pixels, and the plurality of pixels are electrically connected to the driving circuit respectively, and the driving circuit has a source driver.
- the timing controller controls the source driver driving circuit to output a plurality of data voltages and a common electrode voltage to be transmitted to the plurality of pixels to display an image, the pixel has a pixel electrode and a common electrode, and the plurality of data voltages are transmitted to the plurality of pixel electrodes
- the common electrode voltage is transmitted to the common electrode, wherein the voltage value of the common electrode voltage is a first voltage during the Nth frame time, and the voltage value of the common electrode voltage is changed from the first voltage to the first voltage in the N+1th frame time a second voltage, N being a positive integer greater than or equal to 1, and the first voltage is opposite to the polarity of the second voltage
- the driving method comprising: detecting that the voltage value of the common electrode voltage is changed to after the start of the (N+1)th frame a time difference of the second voltage; and controlling, by the timing controller, the source driver to delay transmitting the plurality of data after the start of the (N+1)th frame Pressure to the plurality of pixel electrodes.
- the present application after detecting the time difference of the voltage value of the common electrode voltage after the start of the (N+1)th frame to the second voltage, the source is controlled by the timing controller.
- the polar driver delays the time difference to transmit a plurality of data voltages to a plurality of pixels after the start of the (N+1)th frame. Therefore, the present application can apply the common electrode voltage modulation driving method to the large-sized panel by the above driving method, which not only can reduce the power consumption of the source driver, but also does not cause color shift of the large-sized panel. phenomenon.
- FIG. 1 is a functional block diagram of a liquid crystal display device according to an embodiment of the present application.
- FIG. 2 is a schematic diagram of a pixel of a liquid crystal display device according to an embodiment of the present application.
- FIG. 3 is a schematic diagram of a common electrode voltage modulation drive according to an embodiment of the present application.
- FIG. 4 is a waveform diagram of a common electrode voltage of two adjacent frames of a liquid crystal display device according to an embodiment of the present application.
- FIG. 5 is a schematic diagram showing the steps of a driving method of a liquid crystal display device of the present application.
- first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining “first” and “second” may include one or more of the features either explicitly or implicitly.
- a plurality means two or more unless otherwise stated.
- the term “comprises” and its variations are intended to cover a non-exclusive inclusion.
- connection In the description of the present application, it should be noted that the terms “installation”, “connected”, and “connected” are to be understood broadly, and may be fixed or detachable, for example, unless otherwise specifically defined and defined. Connected, or integrally connected; can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components.
- Connected, or integrally connected can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components.
- the specific meanings of the above terms in the present application can be understood in the specific circumstances for those skilled in the art.
- FIG. 1 is a functional block diagram of a liquid crystal display device according to an embodiment of the present application
- FIG. 2 is a schematic diagram of a pixel of a liquid crystal display device according to an embodiment of the present application.
- the liquid crystal display device 1 has a display panel 11 and a driving circuit 12 , and the driving circuit 12 is electrically connected to the display panel 11 .
- the display panel 11 can have a plurality of pixels P, and the plurality of pixels P are electrically connected to the driving circuit 12 respectively.
- Each of the pixels P may have a pixel electrode P1, a common electrode P2, and a plurality of liquid crystal molecules P3 sandwiched between the pixel electrode P1 and the common electrode P2.
- the driving circuit 12 When the driving circuit 12 outputs a plurality of data voltages and transmits them to the pixel electrodes P1 of the plurality of pixels P, and outputs a common electrode voltage Vcom and transmits them to the common electrode P2 of the plurality of pixels P, a pixel electrode P1 and the common electrode P2 can be formed.
- the voltage difference enables the liquid crystal molecules P3 to be rotated to a certain angle to realize the display of the picture.
- the driving circuit 12 can include a timing controller 121, a source driver 122, and a gate driver (not shown).
- the gate driver may be coupled to the display panel 11 through a plurality of scan lines
- the source driver 122 may be coupled to the plurality of pixels P of the display panel 11 through a plurality of data lines.
- the timing controller 121 can transmit the vertical synchronization start signal and the horizontal synchronization signal to the gate driver, convert the video signal received from the external interface into a data voltage required by the source driver 122, and transmit the data signal and the level.
- the sync signal is sent to the source driver 122.
- the source driver 122 may output a plurality of data voltages corresponding to the plurality of data lines to the pixel electrodes P1 of the plurality of pixels P, and transmit the common electrode voltage Vcom to the common electrode P2.
- the gate driver can sequentially turn on the plurality of scan lines according to the vertical sync start signal at the beginning of a frame time.
- the source driver 122 can correspond to A plurality of data voltages are transmitted to the respective pixels P through a plurality of data lines, so that the display panel 11 can display an image.
- FIG. 3 is a schematic diagram of a common electrode voltage modulation drive according to an embodiment of the present invention
- FIG. 4 is a waveform diagram of a common electrode voltage of two adjacent frames of a liquid crystal display device according to an embodiment
- FIG. 5 is an embodiment of the present application.
- V0 to V7 respectively represent data voltages, and in order to achieve polarity switching of the pixel voltage of the pixel P (the pixel voltage is equal to the voltage difference between the data voltage and the common electrode voltage), the liquid crystal molecules are prevented from being deteriorated.
- the common electrode voltage Vcom of each frame is switched in polarity of the voltage.
- N is a positive integer, has the opposite polarity, and the switching action is started at the blank time tb between the Nth frame and the (N+1)th frame.
- the common electrode voltage Vcom is assumed that the correct voltage in the N-th frame time T n value of a first voltage V1, and the common electrode voltage Vcom in the first N + 1 frame time T n + 1 is The correct voltage value is a second voltage V2, where N is a positive integer greater than or equal to 1, and the first voltage V1 is opposite in polarity to the second voltage V2. Since the area of the common electrode P2 of the large-sized display panel 11 is large, the parasitic capacitance thereof is also large. Therefore, when the source driver 122 starts at the blank time tb, the voltage value of the common electrode P2 is made of the Nth frame.
- step S01 is: detecting that the voltage value of the common electrode voltage Vcom changes to a time difference t1 of the second voltage V2 after the start of the (N+1)th frame.
- the source driver 122 starts to change the first voltage V1 at the beginning of the blank time tb, and changes the voltage from the first voltage V1 to the second voltage V2 during the N+1th frame time Tn +1 .
- the voltage value of the common electrode voltage Vcom can be detected by a detecting circuit 2 (please refer to FIG. 1), thereby obtaining a time difference t1 of the voltage changing to the second voltage V2.
- this time difference t1 is equal to the time at which the N+1th frame starts and the time interval when the common electrode voltage Vcom reaches the second voltage v2.
- step S02 the source driver 122 is controlled by the timing controller 121 to delay the time difference t1 to transmit a plurality of data voltages to the plurality of pixels P after the start of the (N+1)th frame. Since the voltage value of the common electrode P2 of the (N+1)th frame reaches the second voltage V2 after the delay time difference t1, the source driver 122 can be controlled by the timing controller 121 after the start of the (N+1)th frame and Before the time difference t1, the data voltage is not transmitted to the pixel P, but after the N+1th frame and the delay time difference t1, the timing controller 121 causes the source driver 122 to transmit the data voltage to the pixel electrode P1, thus, the pixel P The pixel voltage is the correct voltage to be set by the system, so that the display panel 11 does not cause color shift phenomenon.
- the delay output of the source driver 122 and the re-definition of the charging time of each row can be completed, in other words, the modification is made.
- the subsequent timing controller 121 can control the source driver 122 to transfer the data voltages of the respective data lines to the respective pixels P after the start of the (N+1)th frame and the delay time difference t1. Therefore, the liquid crystal display device 1 of the present embodiment and the driving method thereof can apply the method of commutating the voltage of the common electrode voltage to the large-sized panel, and can not only have the effect of reducing the power consumption of the source driver, but also the large size.
- the panel produces a color shift phenomenon.
- the driving is controlled by the timing controller.
- the source driver of the circuit delays the time difference to transmit a plurality of data voltages to a plurality of pixels after the start of the (N+1)th frame. Therefore, according to the driving method described above, the present application can apply the method of common electrode voltage modulation driving to a large-sized panel, which not only achieves the effect of reducing the power consumption of the source driver, but also does not cause color shift of the large-sized panel. phenomenon.
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Abstract
A liquid display device and a drive method therefor are disclosed. The display panel of the liquid crystal display device comprises a plurality of pixels; a source electrode driver of a drive circuit outputs a plurality of data voltages and a common electrode voltage and transmits same to a plurality of pixels to display an image; during an Nth frame time, the voltage value of the common electrode voltage is a first voltage; and during an Nth+1 frame time, the voltage value of the common electrode voltage changes to a second voltage; N is a positive integer greater than or equal to 1. The drive method comprises: measuring the time differential between when the Nth+1 frame time starts and when the voltage value of the common electrode changes to the second voltage (S01); and controlling, by means of a time sequence controller, the source electrode driver to delay transmission of a plurality of data voltages to a plurality of pixels until said time differential expires following the start of the Nth+1 frame time (S02). Use of the device and method allow for reduced power consumption and does not cause color cast.
Description
本申请关于一种显示装置及其驱动方法，特别关于一种可应用于大尺寸的液晶显示装置及其驱动方法。The present application relates to a display device and a method of driving the same, and more particularly to a liquid crystal display device that can be applied to a large size and a method of driving the same.
随着科技的进步，平面显示装置已经广泛的被运用在各种领域，尤其是液晶显示装置，因具有体型轻薄、低功率消耗及无辐射等优越特性，已经渐渐地取代传统阴极射线管显示装置，而应用至许多种类之电子产品中，例如行动电话、可携式多媒体装置、笔记型计算机、液晶电视及液晶屏幕等等。With the advancement of technology, flat display devices have been widely used in various fields, especially liquid crystal display devices, which have gradually replaced traditional cathode ray tube display devices due to their superior characteristics such as light weight, low power consumption and no radiation. And applied to many kinds of electronic products, such as mobile phones, portable multimedia devices, notebook computers, LCD TVs and LCD screens, and the like.
在液晶显示装置的公知技艺中，面板驱动一般有两种方式，一种是“共电极直流电压驱动”，另一种是“共电极电压调变驱动”。其中，像素电压是由数据电压与共电极电压之间的电压差来决定，在共电极直流电压驱动中，共电极电压是固定不变的，因此，源极驱动器的输出电压范围较大，会增加源极驱动器的功耗。另外，在共电极电压调变驱动中，共电极电压是不断变化的，就使得源极驱动器的输出电压的范围可以降低，从而降低源极驱动器的功耗。In the well-known art of liquid crystal display devices, panel driving generally has two modes, one is "common electrode DC voltage driving" and the other is "common electrode voltage modulation driving". Wherein, the pixel voltage is determined by the voltage difference between the data voltage and the common electrode voltage. In the common electrode DC voltage driving, the common electrode voltage is fixed, and therefore, the output voltage range of the source driver is large, and the voltage is increased. The power consumption of the source driver. In addition, in the common electrode voltage modulation drive, the common electrode voltage is constantly changing, so that the range of the output voltage of the source driver can be reduced, thereby reducing the power consumption of the source driver.
然而，共电极电压调变驱动并不适合大尺寸的面板，其原因是因为大尺寸面板的共电极的面积较大，导致其寄生电容也较大，因此，当共电极电压改变时，需要一段时间才能使共电极的电压到达所需的正确电压值，而在未到达正确电压值的这段时间内，数据电压仍输入像素电极，导致像素电压不是***所设置的电压，这样会使面板产生色偏现象，降低了画面质量。However, the common electrode voltage modulation drive is not suitable for a large-sized panel because the large-area panel has a large common electrode area, which causes a large parasitic capacitance. Therefore, when the common electrode voltage changes, a section is required. Time can make the voltage of the common electrode reach the required correct voltage value, and the data voltage is still input to the pixel electrode during the time when the correct voltage value is not reached, so that the pixel voltage is not the voltage set by the system, which will cause the panel to generate Color shift phenomenon, which reduces the picture quality.
发明内容Summary of the invention
有鉴于先前技术的不足，发明人经研发后得本申请。本申请的目的为提供一种液晶显示装置及其驱动方法，可将共电极电压调变驱动的方式应用于大尺寸面板，不仅可达到降低源极驱动器功耗的效果，而且也不会产生色偏现象。In view of the deficiencies of the prior art, the inventors have obtained this application after research and development. The purpose of the application is to provide a liquid crystal display device and a driving method thereof, which can apply the method of common electrode voltage modulation driving to a large-sized panel, which can not only achieve the effect of reducing the power consumption of the source driver, but also does not produce color. Partial phenomenon.
本申请提出一种液晶显示装置的驱动方法。液晶显示装置具有一显示面板及一驱动电路，显示面板包括多个像素，多个像素分别和驱动电路电性连 接，驱动电路具有一源极驱动器与一时序控制器，时序控制器控制源极驱动器输出多个数据电压及一共电极电压传送至多个像素以显示影像，其中，共电极电压的电压值在一第N帧时间内为一第一电压，共电极电压的电压值在一第N+1帧时间内由第一电压改变至一第二电压，N为大于等于1的正整数，所述驱动方法包括：检测共电极电压的电压值在第N+1帧开始后改变至第二电压的一时间差；以及通过时序控制器控制源极驱动器在第N+1帧开始后延迟所述时间差传送多个数据电压至多个像素。The present application proposes a driving method of a liquid crystal display device. The liquid crystal display device has a display panel and a driving circuit. The display panel includes a plurality of pixels, and the plurality of pixels are electrically connected to the driving circuit. The driving circuit has a source driver and a timing controller, and the timing controller controls the source driver. Outputting a plurality of data voltages and a common electrode voltage are transmitted to the plurality of pixels to display an image, wherein the voltage value of the common electrode voltage is a first voltage during the Nth frame time, and the voltage value of the common electrode voltage is at the N+1th The frame time is changed from the first voltage to a second voltage, and N is a positive integer greater than or equal to 1. The driving method includes: detecting that the voltage value of the common electrode voltage changes to the second voltage after the start of the (N+1)th frame a time difference; and controlling, by the timing controller, the source driver to delay the time difference to transmit the plurality of data voltages to the plurality of pixels after the start of the (N+1)th frame.
本申请另提出一种液晶显示装置，包括一显示面板以及一驱动电路。显示面板包括多个像素，驱动电路分别与多个像素电性连接，驱动电路具有一源极驱动器与一时序控制器，时序控制器控制源极驱动器输出多个数据电压及一共电极电压传送至多个像素以显示影像，其中共电极电压的电压值在一第N帧时间内为一第一电压，共电极电压的电压值在一第N+1帧时间内由第一电压改变至一第二电压，N为大于等于1的正整数；其中，时序控制器控制源极驱动器在第N+1帧开始后延迟一时间传送多个数据电压至多个像素，所述时间为检测共电极电压的电压值在第N+1帧开始后改变至第二电压的一时间差。The present application further provides a liquid crystal display device including a display panel and a driving circuit. The display panel includes a plurality of pixels, and the driving circuit is electrically connected to the plurality of pixels respectively. The driving circuit has a source driver and a timing controller, and the timing controller controls the source driver to output a plurality of data voltages and a common electrode voltage to be transmitted to the plurality of pixels. The pixel displays an image, wherein the voltage value of the common electrode voltage is a first voltage during a Nth frame time, and the voltage value of the common electrode voltage is changed from the first voltage to the second voltage in an N+1 frame time N is a positive integer greater than or equal to 1; wherein, the timing controller controls the source driver to delay transmitting a plurality of data voltages to a plurality of pixels after the start of the (N+1)th frame, wherein the time is a voltage value for detecting the common electrode voltage A time difference is changed to the second voltage after the start of the (N+1)th frame.
在一实施例中，多个像素分别具有一像素电极、一共电极及夹置于像素电极与共电极之间的多个液晶分子。In one embodiment, the plurality of pixels respectively have a pixel electrode, a common electrode, and a plurality of liquid crystal molecules sandwiched between the pixel electrode and the common electrode.
在一实施例中，多个数据电压传送至多个像素电极，共电极电压传送至共电极。In an embodiment, a plurality of data voltages are delivered to the plurality of pixel electrodes and the common electrode voltage is delivered to the common electrode.
在一实施例中，驱动电路还具有一栅极驱动器，栅极驱动器通过多条扫描线与显示面板耦接，源极驱动器通过多条数据线与显示面板的多个像素耦接，当栅极驱动器使多条扫描线分别依序导通时，源极驱动器将多个数据电压通过多条数据线传送至多个像素，使显示面板显示影像。In an embodiment, the driving circuit further has a gate driver coupled to the display panel by a plurality of scan lines, and the source driver is coupled to the plurality of pixels of the display panel through the plurality of data lines, and the gate is When the driver turns on the plurality of scan lines in sequence, the source driver transmits the plurality of data voltages to the plurality of pixels through the plurality of data lines, so that the display panel displays the image.
在一实施例中，是通过一检测电路检测共电极电压的电压值，进而得到所述时间差。In one embodiment, the voltage value of the common electrode voltage is detected by a detection circuit to obtain the time difference.
在一实施例中，时序控制器控制源极驱动器在第N+1帧开始之后且在所述时间差之前，不要传送多个数据电压至多个像素。In an embodiment, the timing controller controls the source driver not to transmit a plurality of data voltages to the plurality of pixels after the start of the (N+1)th frame and before the time difference.
在一实施例中，第一电压与第二电压的极性相反。In an embodiment, the first voltage is opposite in polarity to the second voltage.
在一实施例中，第N帧与第N+1帧间隔一空白时间，驱动电路在所述空白时间由第一电压开始改变，并在第N+1帧时间内改变至第二电压，其中，T
n+1 为所述第N+1帧的时间，t2为所述源极驱动器传送所述多个数据电压至所述多个像素的时间，t1为所述时间差，且t2＝T
n+1-t1。
In an embodiment, the Nth frame and the N+1th frame are separated by a blank time, and the driving circuit starts to change from the first voltage during the blank time, and changes to the second voltage during the N+1th frame time, wherein , T n + 1 is the first N + 1 frame time, t2 the source driver transmits the data voltage to the plurality of time a plurality of pixels, t1 is the time difference, and t2 = T n +1 -t1.
在一实施例中，是对时序控制器进行线下修改，使修改后的时序控制器控制源极驱动器在第N+1帧开始后延迟所述时间差传送多个数据电压至多个像素。In one embodiment, the timing controller is modified offline to cause the modified timing controller to control the source driver to delay transmitting the plurality of data voltages to the plurality of pixels after the beginning of the (N+1)th frame.
本申请又提出一种液晶显示装置的驱动方法，液晶显示装置具有一显示面板及一驱动电路，显示面板包括多个像素，多个像素分别和驱动电路电性连接，驱动电路具有一源极驱动器与一时序控制器，时序控制器控制源极驱动器驱动电路输出多个数据电压及一共电极电压传送至多个像素以显示影像，像素具有一像素电极与一共电极，多个数据电压传送至多个像素电极，共电极电压传送至共电极，其中共电极电压的电压值在一第N帧时间内为一第一电压，共电极电压的电压值在一第N+1帧时间内由第一电压改变至一第二电压，N为大于等于1的正整数，且第一电压与第二电压的极性相反，所述驱动方法包括：检测共电极电压的电压值在第N+1帧开始后改变至第二电压的一时间差；以及通过时序控制器控制源极驱动器在第N+1帧开始后延迟所述时间差传送多个数据电压至多个像素电极。The present application further provides a driving method of a liquid crystal display device. The liquid crystal display device has a display panel and a driving circuit. The display panel includes a plurality of pixels, and the plurality of pixels are electrically connected to the driving circuit respectively, and the driving circuit has a source driver. And a timing controller, the timing controller controls the source driver driving circuit to output a plurality of data voltages and a common electrode voltage to be transmitted to the plurality of pixels to display an image, the pixel has a pixel electrode and a common electrode, and the plurality of data voltages are transmitted to the plurality of pixel electrodes The common electrode voltage is transmitted to the common electrode, wherein the voltage value of the common electrode voltage is a first voltage during the Nth frame time, and the voltage value of the common electrode voltage is changed from the first voltage to the first voltage in the N+1th frame time a second voltage, N being a positive integer greater than or equal to 1, and the first voltage is opposite to the polarity of the second voltage, the driving method comprising: detecting that the voltage value of the common electrode voltage is changed to after the start of the (N+1)th frame a time difference of the second voltage; and controlling, by the timing controller, the source driver to delay transmitting the plurality of data after the start of the (N+1)th frame Pressure to the plurality of pixel electrodes.
承上所述，在本申请之液晶显示装置及其驱动方法中，通过检测共电极电压的电压值在第N+1帧开始后改变至第二电压的时间差后，再通过时序控制器控制源极驱动器在第N+1帧开始后延迟所述时间差传送多个数据电压至多个像素。借此，本申请通过上述的驱动方法，可将共电极电压调变驱动的方式应用于大尺寸面板，不仅可达到降低源极驱动器功耗的效果，而且也不会使大尺寸面板产生色偏现象。As described above, in the liquid crystal display device and the driving method thereof of the present application, after detecting the time difference of the voltage value of the common electrode voltage after the start of the (N+1)th frame to the second voltage, the source is controlled by the timing controller. The polar driver delays the time difference to transmit a plurality of data voltages to a plurality of pixels after the start of the (N+1)th frame. Therefore, the present application can apply the common electrode voltage modulation driving method to the large-sized panel by the above driving method, which not only can reduce the power consumption of the source driver, but also does not cause color shift of the large-sized panel. phenomenon.
所包括的附图用来提供对本申请实施例的进一步的理解，其构成了说明书的一部分，用于例示本申请的实施方式，并与文字描述一起来阐释本申请的原理。显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。在附图中：The drawings are included to provide a further understanding of the embodiments of the present application, and are intended to illustrate the embodiments of the present application Obviously, the drawings in the following description are only some of the embodiments of the present application, and those skilled in the art can obtain other drawings according to the drawings without any inventive labor. In the drawing:
图1为本申请一实施例的液晶显示装置的功能方块示意图。1 is a functional block diagram of a liquid crystal display device according to an embodiment of the present application.
图2为本申请一实施例的液晶显示装置的一个像素的示意图。2 is a schematic diagram of a pixel of a liquid crystal display device according to an embodiment of the present application.
图3为本申请一实施例的共电极电压调变驱动的示意图。FIG. 3 is a schematic diagram of a common electrode voltage modulation drive according to an embodiment of the present application.
图4为本申请一实施例之液晶显示装置的两相邻帧的共电极电压的波形示意图。4 is a waveform diagram of a common electrode voltage of two adjacent frames of a liquid crystal display device according to an embodiment of the present application.
图5为本申请之一种液晶显示装置的驱动方法的步骤示意图。FIG. 5 is a schematic diagram showing the steps of a driving method of a liquid crystal display device of the present application.
本申请目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。The implementation, functional features and advantages of the present application will be further described with reference to the accompanying drawings.
这里所公开的具体结构和功能细节仅仅是代表性的，并且是用于描述本申请的示例性实施例的目的。但是本申请可以通过许多替换形式来具体实现，并且不应当被解释成仅仅受限于这里所阐述的实施例。The specific structural and functional details disclosed herein are merely representative and are for the purpose of describing exemplary embodiments of the present application. The present application, however, may be embodied in many alternative forms and should not be construed as being limited to the embodiments set forth herein.
在本申请的描述中，需要理解的是，术语“中心”、“横向”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本申请的描述中，除非另有说明，“多个”的含义是两个或两个以上。另外，术语“包括”及其任何变形，意图在于覆盖不排他的包含。In the description of the present application, it is to be understood that the terms "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", The orientation or positional relationship of the "bottom", "inside", "outside" and the like is based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present application and simplified description, and does not indicate or imply the indicated device. Or the components must have a particular orientation, constructed and operated in a particular orientation, and thus are not to be construed as limiting. Moreover, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" and "second" may include one or more of the features either explicitly or implicitly. In the description of the present application, "a plurality" means two or more unless otherwise stated. In addition, the term "comprises" and its variations are intended to cover a non-exclusive inclusion.
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本申请中的具体含义。In the description of the present application, it should be noted that the terms "installation", "connected", and "connected" are to be understood broadly, and may be fixed or detachable, for example, unless otherwise specifically defined and defined. Connected, or integrally connected; can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components. The specific meanings of the above terms in the present application can be understood in the specific circumstances for those skilled in the art.
这里所使用的术语仅仅是为了描述具体实施例而不意图限制示例性实施例。除非上下文明确地另有所指，否则这里所使用的单数形式“一个”、“一项”还意图包括复数。还应当理解的是，这里所使用的术语“包括”和/或“包含”规 定所陈述的特征、整数、步骤、操作、单元和/或组件的存在，而不排除存在或添加一个或更多其他特征、整数、步骤、操作、单元、组件和/或其组合。The terminology used herein is for the purpose of describing the particular embodiments, The singular forms "a", "an", It is also to be understood that the terms "comprising" and """ Other features, integers, steps, operations, units, components, and/or combinations thereof.
以下将参照相关图式，说明依本申请较佳实施例之液晶显示装置及其驱动方法，其中相同的组件将以相同的参照符号加以说明。Hereinafter, a liquid crystal display device and a driving method thereof according to a preferred embodiment of the present application will be described with reference to the accompanying drawings, wherein the same components will be described with the same reference numerals.
图1为本申请一实施例的液晶显示装置的功能方块示意图，而图2为本申请一实施例的液晶显示装置的一个像素的示意图。1 is a functional block diagram of a liquid crystal display device according to an embodiment of the present application, and FIG. 2 is a schematic diagram of a pixel of a liquid crystal display device according to an embodiment of the present application.
如图1与图2所示，液晶显示装置1具有一显示面板11及一驱动电路12，驱动电路12与显示面板11电性连接。显示面板11可具有多个像素P，多个像素P分别与驱动电路12电性连接。其中，各像素P可分别具有一像素电极P1、一共电极P2及夹置于像素电极P1与共电极P2之间的多个液晶分子P3。当驱动电路12输出多个数据电压并传送至多个像素P的像素电极P1，且输出一共电极电压Vcom并传送至多个像素P的共电极P2时，可使像素电极P1与共电极P2之间形成一电压差，使液晶分子P3可旋转到一定的角度，以实现画面的显示。As shown in FIG. 1 and FIG. 2 , the liquid crystal display device 1 has a display panel 11 and a driving circuit 12 , and the driving circuit 12 is electrically connected to the display panel 11 . The display panel 11 can have a plurality of pixels P, and the plurality of pixels P are electrically connected to the driving circuit 12 respectively. Each of the pixels P may have a pixel electrode P1, a common electrode P2, and a plurality of liquid crystal molecules P3 sandwiched between the pixel electrode P1 and the common electrode P2. When the driving circuit 12 outputs a plurality of data voltages and transmits them to the pixel electrodes P1 of the plurality of pixels P, and outputs a common electrode voltage Vcom and transmits them to the common electrode P2 of the plurality of pixels P, a pixel electrode P1 and the common electrode P2 can be formed. The voltage difference enables the liquid crystal molecules P3 to be rotated to a certain angle to realize the display of the picture.
在本实施例中，驱动电路12可包括一时序控制器121、一源极驱动器122及一栅极驱动器(未绘示)。栅极驱动器可通过多条扫描线与显示面板11耦接，而源极驱动器122可通过多条数据线与显示面板11的多个像素P耦接。其中，时序控制器121可传送垂直同步起始信号及水平同步信号至栅极驱动器，并将自外部接口所接收的视讯信号转换成源极驱动器122所需的数据电压，并传送数据信号与水平同步信号至源极驱动器122。而源极驱动器122可输出与多条数据线对应的多个数据电压至多个像素P的像素电极P1，并传送共电极电压Vcom至共电极P2。此外，栅极驱动器可在一个帧时间(frame time)开始时依据垂直同步起始信号依序导通多条扫描线，当多条扫描线分别依序导通时，源极驱动器122可对应将多个数据电压通过多条数据线传送至各像素P，使显示面板11可显示影像。In this embodiment, the driving circuit 12 can include a timing controller 121, a source driver 122, and a gate driver (not shown). The gate driver may be coupled to the display panel 11 through a plurality of scan lines, and the source driver 122 may be coupled to the plurality of pixels P of the display panel 11 through a plurality of data lines. The timing controller 121 can transmit the vertical synchronization start signal and the horizontal synchronization signal to the gate driver, convert the video signal received from the external interface into a data voltage required by the source driver 122, and transmit the data signal and the level. The sync signal is sent to the source driver 122. The source driver 122 may output a plurality of data voltages corresponding to the plurality of data lines to the pixel electrodes P1 of the plurality of pixels P, and transmit the common electrode voltage Vcom to the common electrode P2. In addition, the gate driver can sequentially turn on the plurality of scan lines according to the vertical sync start signal at the beginning of a frame time. When the plurality of scan lines are sequentially turned on, the source driver 122 can correspond to A plurality of data voltages are transmitted to the respective pixels P through a plurality of data lines, so that the display panel 11 can display an image.
图3为本申请一实施例的共电极电压调变驱动的示意图，图4为一实施例之液晶显示装置的两相邻帧的共电极电压的波形示意图，而图5为本申请一实施例之一种液晶显示装置的驱动方法的步骤示意图。3 is a schematic diagram of a common electrode voltage modulation drive according to an embodiment of the present invention, and FIG. 4 is a waveform diagram of a common electrode voltage of two adjacent frames of a liquid crystal display device according to an embodiment, and FIG. 5 is an embodiment of the present application. A schematic diagram of the steps of a driving method of a liquid crystal display device.
在图3中，V0～V7分别代表的是数据电压，为了实现像素P的像素电压(像素电压等于数据电压与共电极电压之间的电压差)的极性切换，避免液 晶分子劣化，本实施例的每一个帧的共电极电压Vcom都会进行电压极性的切换，换句话说，本实施例的源极驱动器122输出的共电极电压Vcom中，相邻两帧(第N帧与第N+1帧，N为正整数)的共电极电压Vcom的极性相反，而此切换动作是在第N帧与第N+1帧之间的空白时间tb时开始进行。In FIG. 3, V0 to V7 respectively represent data voltages, and in order to achieve polarity switching of the pixel voltage of the pixel P (the pixel voltage is equal to the voltage difference between the data voltage and the common electrode voltage), the liquid crystal molecules are prevented from being deteriorated. The common electrode voltage Vcom of each frame is switched in polarity of the voltage. In other words, in the common electrode voltage Vcom outputted by the source driver 122 of the present embodiment, two adjacent frames (the Nth frame and the N+1th) The common electrode voltage Vcom of the frame, N is a positive integer, has the opposite polarity, and the switching action is started at the blank time tb between the Nth frame and the (N+1)th frame.
另外，如图4所示，假设共电极电压Vcom在第N帧时间T
n内的正确电压值为一第一电压V1，且共电极电压Vcom在第N+1帧时间T
n+1内的正确电压值为一第二电压V2，其中N为大于等于1的正整数，且第一电压V1与第二电压V2的极性相反。由于大尺寸的显示面板11的共电极P2的面积较大，导致其寄生电容也较大，因此，当源极驱动器122在空白时间tb开始时使共电极P2的电压值由第N帧的第一电压V1改变，并在第N+1帧时间T
n+1内由第一电压V1改变至第二电压V2时，并不会在第N+1帧一开始的当下就会达到正确的第二电压V2，而是在第N+1帧开始且经过一段延迟时间t1后才能使共电极P2的电压到达所需的第二电压V2，但是，在公知技艺中，在延迟时间t1内，数据电压仍会输入像素电极P1，导致像素电压不是***所设置的电压，使得面板会产生色偏。
Further, as shown in FIG. 4, the common electrode voltage Vcom is assumed that the correct voltage in the N-th frame time T n value of a first voltage V1, and the common electrode voltage Vcom in the first N + 1 frame time T n + 1 is The correct voltage value is a second voltage V2, where N is a positive integer greater than or equal to 1, and the first voltage V1 is opposite in polarity to the second voltage V2. Since the area of the common electrode P2 of the large-sized display panel 11 is large, the parasitic capacitance thereof is also large. Therefore, when the source driver 122 starts at the blank time tb, the voltage value of the common electrode P2 is made of the Nth frame. When a voltage V1 is changed and is changed from the first voltage V1 to the second voltage V2 during the N+1th frame time Tn +1 , the correct number will not be reached at the beginning of the (N+1) th frame. The second voltage V2, but the voltage of the common electrode P2 reaches the required second voltage V2 after the start of the N+1th frame and after a delay time t1, but in the prior art, during the delay time t1, the data The voltage will still be input to the pixel electrode P1, causing the pixel voltage not to be set by the system, causing the panel to produce color shift.
为了解决这个问题，如图5所示，本实施例的驱动电路12的驱动方法可包括两步骤S01与步骤S02。首先，步骤S01为：检测共电极电压Vcom的电压值在第N+1帧开始后改变至第二电压V2的一时间差t1。其中，源极驱动器122是在空白时间tb开始时使第一电压V1开始改变，并在第N+1帧时间T
n+1内使电压由第一电压V1改变至第二电压V2。本实施例可通过一检测电路2(请参照图1)检测共电极电压Vcom的电压值，进而得到此电压改变至第二电压V2的时间差t1。如图4所示，此时间差t1等于第N+1帧开始的时间与共电极电压Vcom到达第二电压v2的时间间隔。
In order to solve this problem, as shown in FIG. 5, the driving method of the driving circuit 12 of this embodiment may include two steps S01 and S02. First, step S01 is: detecting that the voltage value of the common electrode voltage Vcom changes to a time difference t1 of the second voltage V2 after the start of the (N+1)th frame. The source driver 122 starts to change the first voltage V1 at the beginning of the blank time tb, and changes the voltage from the first voltage V1 to the second voltage V2 during the N+1th frame time Tn +1 . In this embodiment, the voltage value of the common electrode voltage Vcom can be detected by a detecting circuit 2 (please refer to FIG. 1), thereby obtaining a time difference t1 of the voltage changing to the second voltage V2. As shown in FIG. 4, this time difference t1 is equal to the time at which the N+1th frame starts and the time interval when the common electrode voltage Vcom reaches the second voltage v2.
接着，步骤S02为：通过时序控制器121控制源极驱动器122在第N+1帧开始后延迟所述时间差t1传送多个数据电压至多个像素P。由于在延迟时间差t1之后，第N+1帧的共电极P2的电压值才会到达第二电压V2，因此，可通过时序控制器121控制源极驱动器122在第N+1帧开始之后且在时间差t1之前，不要传送数据电压至像素P，而是在第N+1帧开始且延迟时间差t1之后，时序控制器121才使源极驱动器122传送数据电压至像素电极P1，这样，像素P的像素电压才是***所要设置的正确电压，使显示面板11不会产 生色偏现象。Next, in step S02, the source driver 122 is controlled by the timing controller 121 to delay the time difference t1 to transmit a plurality of data voltages to the plurality of pixels P after the start of the (N+1)th frame. Since the voltage value of the common electrode P2 of the (N+1)th frame reaches the second voltage V2 after the delay time difference t1, the source driver 122 can be controlled by the timing controller 121 after the start of the (N+1)th frame and Before the time difference t1, the data voltage is not transmitted to the pixel P, but after the N+1th frame and the delay time difference t1, the timing controller 121 causes the source driver 122 to transmit the data voltage to the pixel electrode P1, thus, the pixel P The pixel voltage is the correct voltage to be set by the system, so that the display panel 11 does not cause color shift phenomenon.
在实施上，可由检测电路2先量测像素P的共电极电压Vcom的电压值在第N+1帧时间T
n+1内由第一电压V1改变至第二电压V2的时间差t1，进而得到时间t2，其中，在第N+1帧时间(T
n+1)内，源极驱动器122传送多个数据电压至多个像素P的时间(t2)，等于第N+1帧时间(T
n+1)减去时间差(t1)，即t2＝T
n+1-t1。之后，对时序控制器121进行线下修改，亦即重新对时序控制器121进行编码，修改完成后就可以完成源极驱动器122的延迟输出与各行充电时间的重新定义，换句话说，使修改后的时序控制器121可控制源极驱动器122在第N+1帧开始且延迟时间差t1之后才传送各条数据线的数据电压至各像素P。因此，本实施例的液晶显示装置1及其驱动方法，可将共电极电压调变驱动的方式应用于大尺寸面板，不仅可具有降低源极驱动器功耗的效果，而且也不会使大尺寸面板产生色偏现象。
In practice, the voltage value of the common electrode voltage Vcom of the pixel P can be measured by the detecting circuit 2 to change from the first voltage V1 to the time difference t1 of the second voltage V2 in the N+1th frame time T n+1 , thereby obtaining Time t2, wherein, during the ( Nth ) th frame time (Tn +1 ), the source driver 122 transmits a plurality of data voltages to the plurality of pixels P (t2), which is equal to the N+1th frame time (Tn +) 1 ) Subtract the time difference (t1), ie t2 = T n+1 - t1. After that, the timing controller 121 is modified offline, that is, the timing controller 121 is re-encoded. After the modification is completed, the delay output of the source driver 122 and the re-definition of the charging time of each row can be completed, in other words, the modification is made. The subsequent timing controller 121 can control the source driver 122 to transfer the data voltages of the respective data lines to the respective pixels P after the start of the (N+1)th frame and the delay time difference t1. Therefore, the liquid crystal display device 1 of the present embodiment and the driving method thereof can apply the method of commutating the voltage of the common electrode voltage to the large-sized panel, and can not only have the effect of reducing the power consumption of the source driver, but also the large size. The panel produces a color shift phenomenon.
综上所述，在本申请之液晶显示装置及其驱动方法中，通过检测共电极电压的电压值在第N+1帧开始后改变至第二电压的时间差后，再通过时序控制器控制驱动电路的源极驱动器在第N+1帧开始后延迟所述时间差传送多个数据电压至多个像素。借此，通过上述的驱动方法，本申请可将共电极电压调变驱动的方式应用于大尺寸面板，不仅可达到降低源极驱动器功耗的效果，而且也不会使大尺寸面板产生色偏现象。In summary, in the liquid crystal display device and the driving method thereof of the present application, after detecting the time difference of the voltage value of the common electrode voltage to the second voltage after the start of the (N+1)th frame, the driving is controlled by the timing controller. The source driver of the circuit delays the time difference to transmit a plurality of data voltages to a plurality of pixels after the start of the (N+1)th frame. Therefore, according to the driving method described above, the present application can apply the method of common electrode voltage modulation driving to a large-sized panel, which not only achieves the effect of reducing the power consumption of the source driver, but also does not cause color shift of the large-sized panel. phenomenon.
以上内容是结合具体的实施方式对本申请所作的进一步详细说明，不能认定本申请的具体实施只局限于这些说明。对于本申请所属技术领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干简单推演或替换，都应当视为属于本申请的保护范围。The above content is a further detailed description of the present application in conjunction with the specific embodiments, and the specific implementation of the present application is not limited to the description. It will be apparent to those skilled in the art that the present invention can be made in the form of the present invention without departing from the scope of the present invention.
Claims (20)
- 一种液晶显示装置的驱动方法，所述液晶显示装置具有一显示面板及一驱动电路，所述显示面板包括多个像素，所述多个像素分别与所述驱动电路电性连接，所述驱动电路具有一源极驱动器与一时序控制器，所述时序控制器控制所述源极驱动器输出多个数据电压及一共电极电压传送至所述多个像素以显示影像，其中，所述共电极电压的电压值在一第N帧时间内为一第一电压，所述共电极电压的电压值在一第N+1帧时间内由所述第一电压改变至一第二电压，N为大于等于1的正整数，所述驱动方法包括：A driving method of a liquid crystal display device, the liquid crystal display device has a display panel and a driving circuit, the display panel includes a plurality of pixels, and the plurality of pixels are electrically connected to the driving circuit respectively, the driving The circuit has a source driver and a timing controller, the timing controller controlling the source driver to output a plurality of data voltages and a common electrode voltage to the plurality of pixels to display an image, wherein the common electrode voltage The voltage value is a first voltage in a period of the Nth frame, and the voltage value of the common electrode voltage is changed from the first voltage to a second voltage in an N+1th frame time, and N is greater than or equal to A positive integer of 1, the driving method includes:检测所述共电极电压的电压值在所述第N+1帧开始后改变至所述第二电压的一时间差；以及Detecting a time difference that the voltage value of the common electrode voltage changes to the second voltage after the start of the (N+1)th frame;通过所述时序控制器控制所述源极驱动器在所述第N+1帧开始后延迟所述时间差传送所述多个数据电压至所述多个像素。Controlling, by the timing controller, the source driver to delay transmitting the plurality of data voltages to the plurality of pixels after the beginning of the (N+1)th frame.
- 如权利要求1所述的驱动方法，其中，所述多个像素分别具有一像素电极、一共电极及夹置于所述像素电极与所述共电极之间的多个液晶分子。The driving method according to claim 1, wherein the plurality of pixels respectively have a pixel electrode, a common electrode, and a plurality of liquid crystal molecules sandwiched between the pixel electrode and the common electrode.
- 如权利要求2所述的驱动方法，其中，所述多个数据电压传送至所述多个像素电极，所述共电极电压传送至所述共电极。The driving method of claim 2, wherein the plurality of data voltages are transmitted to the plurality of pixel electrodes, and the common electrode voltage is transmitted to the common electrode.
- 如权利要求1所述的驱动方法，其中，所述驱动电路还具有一栅极驱动器，所述栅极驱动器通过多条扫描线与所述显示面板耦接，所述源极驱动器通过多条数据线与所述显示面板的所述多个像素耦接。The driving method of claim 1 , wherein the driving circuit further has a gate driver coupled to the display panel by a plurality of scan lines, the source driver passing the plurality of data A line is coupled to the plurality of pixels of the display panel.
- 如权利要求4所述的驱动方法，其中，当所述栅极驱动器使所述多条扫描线分别依序导通时，所述源极驱动器将所述多个数据电压通过所述多条数据线传送至所述多个像素，使所述显示面板显示影像。The driving method according to claim 4, wherein said source driver passes said plurality of data voltages through said plurality of data lines when said gate driver causes said plurality of scan lines to be sequentially turned on, respectively A line is transmitted to the plurality of pixels to cause the display panel to display an image.
- 如权利要求1所述的驱动方法，其中，是通过一检测电路检测所述共电极电压的电压值，进而得到所述时间差。The driving method according to claim 1, wherein the voltage value of the common electrode voltage is detected by a detecting circuit to obtain the time difference.
- 如权利要求1所述的驱动方法，其中，所述时序控制器控制所述源极驱动器在所述第N+1帧开始之后且在所述时间差之前，不要传送所述多个数据电压至所述多个像素。The driving method according to claim 1, wherein said timing controller controls said source driver not to transmit said plurality of data voltages after said start of said (N+1)th frame and before said time difference A plurality of pixels are described.
- 如权利要求1所述的驱动方法，其中，所述第一电压与所述第二电压的极性相反。The driving method according to claim 1, wherein said first voltage is opposite in polarity to said second voltage.
- 如权利要求1所述的驱动方法，其中，所述第N帧与所述第N+1帧 间隔一空白时间，所述源极驱动器在所述空白时间由所述第一电压开始改变，并在所述第N+1帧时间内改变至所述第二电压，其中，T n+1为所述第N+1帧的时间，t2为所述源极驱动器传送所述多个数据电压至所述多个像素的时间，t1为所述时间差，且t2＝T n+1-t1。 The driving method according to claim 1, wherein said Nth frame is spaced apart from said (N+1)th frame by a blank time, said source driver is changed by said first voltage during said blank time, and Changing to the second voltage during the (N+1) th frame time, wherein Tn +1 is the time of the (N+1) th frame, and t2 is that the source driver transmits the plurality of data voltages to The time of the plurality of pixels, t1 is the time difference, and t2 = Tn +1 - t1.
- 如权利要求1所述的驱动方法，其中，是对所述时序控制器进行线下修改，使修改后的所述时序控制器控制所述源极驱动器在所述第N+1帧开始后延迟所述时间差传送所述多个数据电压至所述多个像素。The driving method according to claim 1, wherein said timing controller is subjected to offline modification such that said modified timing controller controls said source driver to delay after said starting of said (N+1)th frame The time difference transmits the plurality of data voltages to the plurality of pixels.
- 一种液晶显示装置，包括：A liquid crystal display device comprising:一显示面板，包括多个像素；以及a display panel comprising a plurality of pixels;一驱动电路，分别与所述多个像素电性连接，所述驱动电路具有一源极驱动器与一时序控制器，所述时序控制器控制所述源极驱动器输出多个数据电压及一共电极电压传送至所述多个像素以显示影像，其中所述共电极电压的电压值在一第N帧时间内为一第一电压，所述共电极电压的电压值在一第N+1帧时间内由所述第一电压改变至一第二电压，N为大于等于1的正整数；a driving circuit electrically connected to the plurality of pixels, the driving circuit has a source driver and a timing controller, and the timing controller controls the source driver to output a plurality of data voltages and a common electrode voltage Transmitting to the plurality of pixels to display an image, wherein a voltage value of the common electrode voltage is a first voltage during an Nth frame time, and a voltage value of the common electrode voltage is within an N+1th frame time Changing from the first voltage to a second voltage, N being a positive integer greater than or equal to 1;其中，所述时序控制器控制所述源极驱动器在所述第N+1帧开始后延迟一时间传送所述多个数据电压至所述多个像素，所述时间为检测所述共电极电压的电压值在所述第N+1帧开始后改变至所述第二电压的一时间差。The timing controller controls the source driver to delay transmitting the plurality of data voltages to the plurality of pixels after a start of the (N+1)th frame, wherein the time is detecting the common electrode voltage The voltage value changes to a time difference of the second voltage after the start of the (N+1)th frame.
- 如权利要求11所述的液晶显示装置，其中，所述多个像素分别具有一像素电极、一共电极及夹置于所述像素电极与所述共电极之间的多个液晶分子。The liquid crystal display device according to claim 11, wherein each of the plurality of pixels has a pixel electrode, a common electrode, and a plurality of liquid crystal molecules interposed between the pixel electrode and the common electrode.
- 如权利要求12所述的液晶显示装置，其中，所述多个数据电压传送至所述多个像素电极，所述共电极电压传送至所述共电极。The liquid crystal display device of claim 12, wherein the plurality of data voltages are transmitted to the plurality of pixel electrodes, and the common electrode voltage is transmitted to the common electrode.
- 如权利要求11所述的液晶显示装置，其中，所述驱动电路还具有一栅极驱动器，所述栅极驱动器通过多条扫描线与所述显示面板耦接，所述源极驱动器通过多条数据线与所述显示面板的所述多个像素耦接，当所述栅极驱动器使所述多条扫描线分别依序导通时，所述源极驱动器将所述多个数据电压通过所述多条数据线传送至所述多个像素，使所述显示面板显示影像。The liquid crystal display device of claim 11, wherein the driving circuit further has a gate driver, the gate driver is coupled to the display panel through a plurality of scan lines, and the source driver passes through a plurality of The data line is coupled to the plurality of pixels of the display panel, and the source driver passes the plurality of data voltages when the gate driver sequentially turns on the plurality of scan lines Transmitting a plurality of data lines to the plurality of pixels to cause the display panel to display an image.
- 如权利要求11所述的液晶显示装置，其中，是通过一检测电路检测所述共电极电压的电压值，进而得到所述时间差。The liquid crystal display device according to claim 11, wherein the time difference is obtained by detecting a voltage value of the common electrode voltage by a detecting circuit.
- 如权利要求11所述的液晶显示装置，其中，所述时序控制器控制所 述源极驱动器在所述第N+1帧开始之后且在所述时间差之前，不要传送所述多个数据电压至所述多个像素。The liquid crystal display device of claim 11, wherein the timing controller controls the source driver not to transmit the plurality of data voltages after the start of the (N+1)th frame and before the time difference The plurality of pixels.
- 如权利要求11所述的液晶显示装置，其中，所述第一电压与所述第二电压的极性相反。The liquid crystal display device of claim 11, wherein the first voltage is opposite in polarity to the second voltage.
- 如权利要求11所述的液晶显示装置，其中，所述第N帧与所述第N+1帧间隔一空白时间，所述驱动电路在所述空白时间由所述第一电压开始改变，并在所述第N+1帧时间内改变至所述第二电压，其中，T n+1为所述第N+1帧的时间，t2为所述源极驱动器传送所述多个数据电压至所述多个像素的时间，t1为所述时间差，且t2＝T n+1-t1。 The liquid crystal display device of claim 11, wherein the Nth frame is spaced apart from the (N+1)th frame by a blank time, and the driving circuit is changed by the first voltage during the blank time, and Changing to the second voltage during the (N+1) th frame time, wherein Tn +1 is the time of the (N+1) th frame, and t2 is that the source driver transmits the plurality of data voltages to The time of the plurality of pixels, t1 is the time difference, and t2 = Tn +1 - t1.
- 如权利要求11所述的液晶显示装置，其中，所述时序控制器进行线下修改，使修改后的所述时序控制器控制所述源极驱动器在所述第N+1帧开始后延迟所述时间差传送所述多个数据电压至所述多个像素。The liquid crystal display device of claim 11, wherein the timing controller performs offline modification such that the modified timing controller controls the source driver to delay after the start of the (N+1)th frame The time difference transmits the plurality of data voltages to the plurality of pixels.
- 一种液晶显示装置的驱动方法，所述液晶显示装置具有一显示面板及一驱动电路，所述显示面板包括多个像素，所述多个像素分别与所述驱动电路电性连接，所述驱动电路具有一源极驱动器与一时序控制器，所述时序控制器控制所述源极驱动器输出多个数据电压及一共电极电压传送至所述多个像素以显示影像，所述像素具有一像素电极与一共电极，所述多个数据电压传送至所述多个像素电极，所述共电极电压传送至所述共电极，其中所述共电极电压的电压值在一第N帧时间内为一第一电压，所述共电极电压的电压值在一第N+1帧时间内由所述第一电压改变至一第二电压，N为大于等于1的正整数，且所述第一电压与所述第二电压的极性相反，所述驱动方法包括：A driving method of a liquid crystal display device, the liquid crystal display device has a display panel and a driving circuit, the display panel includes a plurality of pixels, and the plurality of pixels are electrically connected to the driving circuit respectively, the driving The circuit has a source driver and a timing controller, the timing controller controlling the source driver to output a plurality of data voltages and a common electrode voltage to the plurality of pixels to display an image, the pixel having a pixel electrode And a common electrode, the plurality of data voltages are transmitted to the plurality of pixel electrodes, and the common electrode voltage is transmitted to the common electrode, wherein a voltage value of the common electrode voltage is a first time in a Nth frame time a voltage, the voltage value of the common electrode voltage is changed from the first voltage to a second voltage in an N+1th frame time, N is a positive integer greater than or equal to 1, and the first voltage is The polarity of the second voltage is reversed, and the driving method includes:检测所述共电极电压的电压值在所述第N+1帧开始后改变至所述第二电压的一时间差；以及Detecting a time difference that the voltage value of the common electrode voltage changes to the second voltage after the start of the (N+1)th frame;通过所述时序控制器控制所述源极驱动器在所述第N+1帧开始后延迟所述时间差传送所述多个数据电压至所述多个像素电极。Controlling, by the timing controller, the source driver to delay the time difference to transmit the plurality of data voltages to the plurality of pixel electrodes after the beginning of the (N+1)th frame.
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