WO2018010209A1 - 驱动电路及具有该驱动电路的液晶显示器 - Google Patents

驱动电路及具有该驱动电路的液晶显示器 Download PDF

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Publication number
WO2018010209A1
WO2018010209A1 PCT/CN2016/091511 CN2016091511W WO2018010209A1 WO 2018010209 A1 WO2018010209 A1 WO 2018010209A1 CN 2016091511 W CN2016091511 W CN 2016091511W WO 2018010209 A1 WO2018010209 A1 WO 2018010209A1
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Prior art keywords
circuit
compensation
image data
liquid crystal
crystal display
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English (en)
French (fr)
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周锦杰
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Wuhan China Star Optoelectronics Technology Co Ltd
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Wuhan China Star Optoelectronics Technology Co Ltd
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Priority to US15/126,468 priority Critical patent/US10186218B2/en
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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
    • G09G3/3648—Control of matrices with row and column drivers using an active matrix
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • 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
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • 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
    • 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
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0285—Improving the quality of display appearance using tables for spatial correction of display data
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2354/00—Aspects of interface with display user

Definitions

  • the present invention relates to the field of liquid crystal display, and more particularly to a driving circuit and a liquid crystal display having the same.
  • the common electrode (Vcom ITO) layer 201 needs to be divided into a plurality of square shaped small blocks as the sensing block 202, and then the sensing block 202 is connected to the sensing block 202 through the metal line 203.
  • the driving circuit 204 thus completes the design of the self-capacitive touch panel.
  • a plurality of the sensing blocks 202 need to perform time division multiplexing operations, that is, the time divisions respectively act on the display and touch functions. Therefore, it is necessary to provide an appropriate voltage waveform to the sensing block 202 and associated lines to meet the demand.
  • the touch panel further includes a demultiplexer (Demux) for controlling the conduction and disconnection between the Source end and the RGB.
  • Demux demultiplexer
  • the loading of the touch panel is increased.
  • a voltage of a voltage waveform as shown in FIG. 4 is applied to each line, that is, in the touch phase, when a touch occurs, the source line 206 and the multi-channel
  • the splitter will transmit the same waveform signal as the metal line (Vcom) 203 to avoid coupling effects.
  • the source line 206 is in a low state (at this time, the demultiplexer continues to be at a high level), that is, equivalent to grounding, although the gate (Gate) has already shut down.
  • TFT Thin Film Transistor
  • the amount of the liquid crystal capacitor leaks a part of the source line 206.
  • multiple touch phases are evenly distributed in the scan time of one frame, which causes the leakage time of each touch phase to be unequal, resulting in There is a problem of uneven brightness (mura) or chromatic aberration on the screen.
  • the invention provides a driving circuit capable of performing mura compensation, which can eliminate the block mura caused by leakage during time division multiplexing, thereby improving the picture display quality.
  • the present invention also provides a liquid crystal display having the driving circuit.
  • An aspect of the present invention provides a driving circuit for a liquid crystal display, the driving circuit including a CE (Color Enhancement Technology) circuit, a memory, a data compensation circuit, and a timing controller, the CE circuit, the The data compensation circuit and the timing controller are electrically connected in sequence, and the memory is electrically connected to the data compensation circuit, and the CE circuit is configured to receive image data, and perform image color processing on the image data.
  • the memory is configured to store a compensation value for performing mura compensation on the liquid crystal display
  • the data compensation circuit is configured to acquire a compensation value corresponding to the image data from the memory, and perform a compensation operation
  • the timing The controller is configured to receive the compensated image data from the data compensation circuit, and convert the compensated image data into a signal required by the liquid crystal display.
  • the memory is used to store compensation values of respective touch stages of the liquid crystal display, and the touch stage is divided based on the number of rows in the vertical scanning direction of the liquid crystal display.
  • the data compensation circuit includes a counter and a compensation calculation module, the drive circuit further includes a line synchronization signal, the counter detects the line synchronization signal, and determines the number of lines of the current image data according to the line synchronization signal. And determining a touch phase in which the current image data is located, the compensation calculation module extracts a corresponding compensation value from the memory according to a touch phase in which the current image data is located, and performs a compensation operation.
  • the compensation operation is to add or subtract current image data from the compensation value.
  • the driving circuit further includes a CABC (Content Adaptive Brightness Control) circuit connected between the CE circuit and the data compensation circuit, the CABC circuit is configured to receive from the CE circuit.
  • the image data is subjected to power saving adjustment according to the currently displayed screen.
  • CABC Content Adaptive Brightness Control
  • a liquid crystal display including a driving circuit and a liquid crystal display panel connected to the driving circuit, the driving circuit including CE (Color Enhancement) a circuit, a memory, a data compensation circuit, and a timing controller, wherein the CE circuit, the data compensation circuit, and the timing controller are electrically connected in series, and the memory is electrically connected to the data compensation circuit,
  • the CE circuit is configured to receive image data and perform processing for adding image color to the image data, the memory for storing a compensation value for performing mura compensation on the liquid crystal display, the data compensation circuit for Acquiring a compensation value corresponding to the image data in the memory, and performing a compensation operation
  • the timing controller is configured to receive the compensated image data from the data compensation circuit, and convert the compensated image data into A signal required by the liquid crystal display is output to the liquid crystal display panel.
  • the memory is used to store compensation values of respective touch stages of the liquid crystal display, and the touch stage is divided based on the number of rows in the vertical scanning direction of the liquid crystal display.
  • the data compensation circuit includes a counter and a compensation calculation module, the drive circuit further includes a line synchronization signal, the counter detects the line synchronization signal, and determines the number of lines of the current image data according to the line synchronization signal. And determining a touch phase in which the current image data is located, the compensation calculation module extracts a corresponding compensation value from the memory according to a touch phase in which the current image data is located, and performs a compensation operation.
  • the compensation operation is to add or subtract current image data from the compensation value.
  • the driving circuit further includes a CABC (Content Adaptive Brightness Control) circuit connected between the CE circuit and the data compensation circuit, the CABC circuit is configured to receive from the CE circuit.
  • the image data is subjected to power saving adjustment according to the currently displayed screen.
  • CABC Content Adaptive Brightness Control
  • the driving circuit and the liquid crystal display having the driving circuit of the embodiment of the present invention can determine the touch phase in which the current image data is located, and take out corresponding touches from the memory.
  • the compensation value of the phase, and the corresponding compensation operation to obtain new image data can eliminate the mura caused by leakage during time division multiplexing, thereby improving the picture display quality.
  • FIG. 1 is a schematic plan view of a conventional touch panel.
  • FIG. 2 is a schematic view of a conventional touch panel.
  • FIG. 3 is an equivalent circuit diagram of a single pixel block of a conventional touch panel.
  • FIG. 4 is a voltage waveform diagram of a source line, a demultiplexer, and a metal line of a conventional touch panel.
  • FIG. 5 is a functional circuit diagram of a liquid crystal display according to a preferred embodiment of the present invention.
  • connection In the description of the present invention, 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 explicitly defined and defined.
  • the ground connection, or the integral connection may be a mechanical connection; it may be directly connected, or may be indirectly connected through an intermediate medium, and may be internal communication between the two elements.
  • the specific meaning of the above terms in the present invention can be understood in a specific case by those skilled in the art.
  • FIG. 5 is a functional circuit diagram of a liquid crystal display 100 according to a preferred embodiment of the present invention. As shown in FIG. 5, the liquid crystal display 100 includes a driving circuit 1 and a liquid crystal display panel 3 connected to the driving circuit 1.
  • the driving circuit 1 includes a Color Enhancement (CE) circuit 10, a Content Adaptive Brightness Control (CABC) circuit 20, a memory 40, a data compensation circuit 50, and a Timing Controller (TCON). 60.
  • CE Color Enhancement
  • CABC Content Adaptive Brightness Control
  • TCON Timing Controller
  • the CE circuit 10, the CABC circuit 20, the data compensation circuit 50, and the TCON 60 are sequentially connected, and the memory 40 is connected to the data compensation circuit 50.
  • the CE circuit 10 is configured to receive front end data.
  • the front end data is image data provided to the liquid crystal display 100, and the CE circuit 10 is further configured to add image color to the image data. deal with.
  • the CABC circuit 20 is configured to receive the image data from the CE circuit 10 and perform power saving adjustment by increasing the content gray scale standard while reducing the backlight brightness according to the currently displayed screen.
  • the memory 40 is used to store a compensation value for performing mura compensation on the liquid crystal display 100.
  • the data compensation circuit 50 is configured to acquire a compensation value corresponding to the image data from the memory 40, and perform a compensation operation.
  • the TCON 60 is configured to receive the compensated image data from the data compensation circuit 50 and convert the signals into the liquid crystal display panel 3, such as a CKV signal, an STV signal, a Data signal, etc., and The signal is output to the liquid crystal display panel 3.
  • the liquid crystal display panel 3 such as a CKV signal, an STV signal, a Data signal, etc.
  • the memory 40 is further configured to store compensation values of respective touch stages of the liquid crystal display 100.
  • the touch phase can be divided into 10 to 15 segments, and the specific data can be adjusted according to the actual needs of the user. In the preferred embodiment, the touch phase is divided into 10 segments. The touch phase is divided based on the number of rows of the liquid crystal display 100 in the vertical scanning direction.
  • the liquid crystal display 100 having a resolution of 1080 ⁇ 1920 is taken as an example.
  • the number of rows of the liquid crystal display 100 in the vertical scanning direction is 1920 lines, which is divided into 10 stages, and the 1-200 behavior is In a touch phase, the second touch phase of the 201-400 behavior, ..., the 1800th-1920th tenth touch phase, each phase corresponding to a compensation value, a total of 10 compensation values, respectively
  • the 10 compensation values P1, P2, ..., P10 are all stored in the memory 40.
  • the compensation value can be adjusted according to the characteristics of the liquid crystal display 100, and the compensation values corresponding to each touch phase are generally different.
  • the liquid crystal display 100 performs a display scanning process, and the drive
  • the dynamic circuit 1 further includes a line synchronizing signal, and each line synchronizing signal represents one line.
  • the data compensation circuit 50 includes a counter 51 and a compensation calculation module 53.
  • the counter 51 detects the line synchronization signal, and determines the number of lines in which the current image data is located according to the line synchronization signal, thereby determining the touch phase in which the current image data is located. Specifically, the counter 51 increments the number of rows every time a row synchronization signal is detected, and the counter 51 calculates the number of rows of the current image data according to the synchronization signal, thereby determining the touch of the current image data. stage. The counter 51 returns to zero after completing one frame of scanning.
  • the compensation calculation module 53 retrieves the corresponding compensation value Pn from the memory 40 according to the touch phase in which the current image data is located, and performs corresponding compensation operations to obtain new image data.
  • n is a positive integer.
  • n is a positive integer greater than or equal to 1 and less than or equal to 10.
  • the compensation operation is to add or subtract current image data from the compensation value.
  • the driving circuit 1 and the liquid crystal display 100 having the driving circuit 1 can determine the touch phase in which the current image data is located, and take out corresponding touches from the memory 40.
  • the compensation value of the phase, and the corresponding compensation operation to obtain new image data can eliminate the mura caused by leakage during time division multiplexing, thereby improving the picture display quality.

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Computer Hardware Design (AREA)
  • Human Computer Interaction (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal (AREA)

Abstract

一种用于液晶显示器的驱动电路，包括CE电路（10）、存储器（40）、数据补偿电路（50）及时序控制器（60）。CE电路（10）、数据补偿电路（50）及时序控制器（60）依次电性相连，存储器（40）与数据补偿电路（50）电性相连。 CE电路（10）用于接收图像数据，并对图像数据进行增加图像色彩的处理。存储器（40）用于存储用于对液晶显示器进行mura补偿的补偿值。数据补偿电路（50）用于从存储器（40）中获取与图像数据对应的补偿值，并进行补偿运算。时序控制器（60）用于从数据补偿电路（50）接收经过补偿运算后的图像数据，并将经过补偿运算后的图像数据转换成液晶显示器所需要的信号。

Description

驱动电路及具有该驱动电路的液晶显示器
本发明要求2016年07月13日递交的发明名称为“驱动电路及具有该驱动电路的液晶显示器”的申请号为201610549683.5的在先申请优先权，上述在先申请的内容以引入的方式并入本文本中。
技术领域
本发明涉及液晶显示领域，尤其是涉及一种驱动电路及一种具有该驱动电路的液晶显示器。
背景技术
请参阅图1，在Full In-cell的设计中，需要将共通电极(Vcom ITO)层201分割成多个方型小块作为感应区块202，然后将感应区块202通过金属线203连接至驱动电路204从而完成自容型触控面板的设计。在该设计中，多个所述感应区块202需要进行分时复用作业，即分时段分别作用于显示及触控功能。因此，需要对感应区块202以及相关线路提供适当的电压波形以满足需求。
请一并参阅图2，该种触控面板图案设计的金属线(Metal3)203与源极线(Source Line)206都与像素的黑色矩形(Black Matrix，BM)层205重叠。请同时参阅图3及图4，该触控面板还包括多路分配器(Demux)，用于控制Source端与RGB之间的导通与断开。为了避免金属线203与源极线206之间发生耦合效应，增加触控面板的负载(Loading)。通常，在显示和触控阶段，会对各条线路施加如图4所示的电压波形的电压，即在触控阶段，当有触控发生时，所述源极线206及所述多路分配器将传输与所述金属线(Vcom)203相同的波形信号，以避免耦合效应产生。
由于触控阶段，在无触控发生时，所述源极线206处于低电平状态(此时多路分配器持续高电平)，即相当于接地，此时虽然栅极(Gate)已经关闭。然而，由于薄膜晶体管(Thin Film Transistor，TFT)存在一定的漏电流，使得液晶电容的电量通过所述源极线206漏掉一部分。通常多个触控阶段会平均分配在一帧画面的扫描时间里，这使得各个触控阶段的漏电时间不等，从而导致 画面出现亮度不均匀斑点(mura)或色差的问题。
发明内容
本发明提供一种可进行mura补偿的驱动电路，其可消除分时复用时因漏电造成的块状mura，进而提高画面显示质量。
另外，本发明还提供一种具有该驱动电路的液晶显示器。
本发明一方面提供了一种驱动电路，其用于液晶显示器，所述驱动电路包括CE(Color Enhancement，色彩增强技术)电路、存储器、数据补偿电路及时序控制器，所述CE电路、所述数据补偿电路及所述时序控制器依次电性相连，所述存储器与所述数据补偿电路电性相连，所述CE电路用于接收图像数据，并对该图像数据进行增加图像色彩的处理，所述存储器用于存储用于对所述液晶显示器进行mura补偿的补偿值，所述数据补偿电路用于从所述存储器中获取与所述图像数据对应的补偿值，并进行补偿运算，所述时序控制器用于从所述数据补偿电路接收经过补偿运算后的图像数据，并将经过补偿运算后的图像数据转换成所述液晶显示器所需要的信号。
其中，所述存储器用于存储所述液晶显示器各个触控阶段的补偿值，所述触控阶段基于该液晶显示器的垂直扫描方向的行数进行划分。
其中，所述数据补偿电路包括计数器及补偿计算模块，所述驱动电路还包括行同步信号，所述计数器侦测所述行同步信号，并根据该行同步信号来判断当前图像数据所在的行数，进而判断当前图像数据所在的触控阶段，所述补偿计算模块根据当前图像数据所在的触控阶段从所述存储器取出相应的补偿值，并进行补偿运算。
其中，所述补偿运算为将当前图像数据与所述补偿值相加或者相减。
其中，所述驱动电路还包括连接至所述CE电路与所述数据补偿电路之间的CABC(Content Adaptive Brightness Control，内容对应背光控制技术)电路，所述CABC电路用于从所述CE电路接收所述图像数据，并根据当前显示的画面进行省电调整。
本发明另一方面提供了一种液晶显示器，其包括驱动电路及与该驱动电路相连的液晶显示面板，所述驱动电路包括CE(Color Enhancement，色彩增强 技术)电路、存储器、数据补偿电路及时序控制器，所述CE电路、所述数据补偿电路及所述时序控制器依次电性相连，所述存储器与所述数据补偿电路电性相连，所述CE电路用于接收图像数据，并对该图像数据进行增加图像色彩的处理，所述存储器用于存储用于对所述液晶显示器进行mura补偿的补偿值，所述数据补偿电路用于从所述存储器中获取与所述图像数据对应的补偿值，并进行补偿运算，所述时序控制器用于从所述数据补偿电路接收经过补偿运算后的图像数据，并将经过补偿运算后的图像数据转换成液晶显示器所需要的信号，并输出至所述液晶显示面板。
其中，所述存储器用于存储所述液晶显示器各个触控阶段的补偿值，所述触控阶段基于该液晶显示器的垂直扫描方向的行数进行划分。
其中，所述数据补偿电路包括计数器及补偿计算模块，所述驱动电路还包括行同步信号，所述计数器侦测所述行同步信号，并根据该行同步信号来判断当前图像数据所在的行数，进而判断当前图像数据所在的触控阶段，所述补偿计算模块根据当前图像数据所在的触控阶段从所述存储器取出相应的补偿值，并进行补偿运算。
其中，所述补偿运算为将当前图像数据与所述补偿值相加或者相减。
其中，所述驱动电路还包括连接至所述CE电路与所述数据补偿电路之间的CABC(Content Adaptive Brightness Control，内容对应背光控制技术)电路，所述CABC电路用于从所述CE电路接收所述图像数据，并根据当前显示的画面进行省电调整。
相较于现有技术，本发明实施例所述的驱动电路及具有该驱动电路的液晶显示器中，可判断出当前图像数据所处于的触控阶段，并从所述存储器再取出对应各个触控阶段的补偿值，并进行相应的补偿运算得到新的图像数据，从而可消除分时复用时因漏电造成的mura，进而提高画面显示质量。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付 出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为现有触控面板的平面示意图。
图2为现有触控面板的走线示意图。
图3为现有触控面板的单一像素区块的等效电路图。
图4为现有触控面板的源线、多路分配器及金属线的电压波形图。
图5为本发明较佳实施例的液晶显示器的功能电路图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
此外，以下各实施例的说明是参考附加的图示，用以例示本发明可用以实施的特定实施例。本发明中所提到的方向用语，例如，“上”、“下”、“前”、“后”、“左”、“右”、“内”、“外”、“侧面”等，仅是参考附加图式的方向，因此，使用的方向用语是为了更好、更清楚地说明及理解本发明，而不是指示或暗指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，此不能理解为对本发明的限制。
在本发明的描述中，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，也可以是可拆卸地连接，或者一体地连接；可以是机械连接；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发明中的具体含义。
此外，在本发明的描述中，除非另有说明，“多个”的含义是两个或两个以上。若本说明书中出现“工序”的用语，其不仅是指独立的工序，在与其它工序无法明确区别时，只要能实现该工序所预期的作用则也包括在本用语中。另外，本说明书中用“～”表示的数值范围是指将“～”前后记载的数值分别作为最小值及最大值包括在内的范围。在附图中，结构相似或相同的单元用相同的标号表示。
请参阅图5，图5为本发明较佳实施例的液晶显示器100的功能电路图。如图5所示，该液晶显示器100包括驱动电路1及与该驱动电路1相连的液晶显示面板3。
该驱动电路1包括色彩增强技术(Color Enhancement，CE)电路10、内容对应背光控制技术(Content Adaptive Brightness Control，CABC)电路20、存储器40、数据补偿电路50及时序控制器(Timing Controller，TCON)60。其中，所述CE电路10、CABC电路20、数据补偿电路50及该TCON 60依次相连，该存储器40与该数据补偿电路50相连。
所述CE电路10用于接收前端数据，在本较佳实施例中，该前端数据为提供至所述液晶显示器100的图像数据，该CE电路10还用于对该图像数据进行增加图像色彩的处理。该CABC电路20用于从所述CE电路10接收该图像数据，并根据当前显示的画面通过增加内容灰阶标准同时降低背光亮度进行省电调整。所述存储器40用于存储用于对该液晶显示器100进行mura补偿的补偿值。所述数据补偿电路50用于从该存储器40中获取与该图像数据对应的补偿值，并进行补偿运算。所述TCON 60用于从所述数据补偿电路50接收经过补偿运算后的图像数据，并转换成所述液晶显示面板3所需要的信号，如CKV信号、STV信号及Data信号等，并将该信号输出至液晶显示面板3。
所述存储器40还用于存储该液晶显示器100各个触控阶段的补偿值。该触控阶段可分为10至15区段，具体划分数据可根据用户的实际需求进行调节，在本较佳实施例中，所述触控阶段分为10区段。该触控阶段基于所述液晶显示器100的垂直扫描方向的行数进行划分。
在本较佳实施例中，以分辨率为1080X1920的液晶显示器100为例加以说明，该液晶显示器100在垂直扫描方向上的行数为1920行，分为10阶段，则第1-200行为第一触控阶段，第201-400行为第二触控阶段，......，第1800-1920行为第十触控阶段，每个阶段分别对应一个补偿值，共有10个补偿值，分别为P1、P2、......、P10，所述10个补偿值P1、P2、......、P10均存储在所述存储器40中。该补偿值可根据所述液晶显示器100的特性进行调整，每一个触控阶段对应的补偿值一般不相同。
在本发明的较佳实施例中，该液晶显示器100进行显示扫描过程中，该驱 动电路1还包括行同步信号，每个行同步信号代表1行。所述数据补偿电路50包括计数器51及补偿计算模块53。
所述计数器51侦测该行同步信号，并根据该行同步信号来判断当前图像数据所在的行数，进而判断当前图像数据所在的触控阶段。具体地，所述计数器51在每侦测到1个行同步信号时，行数加1，该计数器51根据该同步信号计算当前图像数据所在的行数，进而判断出当前图像数据所在的触控阶段。该计数器51在完成一帧画面扫描后，行数归零。
所述补偿计算模块53根据当前图像数据所在的触控阶段从该存储器40再取出相应的补偿值Pn，并进行相应的补偿运算得到新的图像数据。其中，n为正整数，在本较佳实施例中，n为大于等于1小于等于10的正整数。在本较佳实施例中，该补偿运算为将当前图像数据与所述补偿值相加或者相减。
综上所述，本发明实施例所述的驱动电路1及具有该驱动电路1的液晶显示器100可判断出当前图像数据所处于的触控阶段，并从所述存储器40再取出对应各个触控阶段的补偿值，并进行相应的补偿运算得到新的图像数据，从而可消除分时复用时因漏电造成的mura，进而提高画面显示质量。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
以上所揭露的仅为本发明一种较佳实施例而已，当然不能以此来限定本发明之权利范围，本领域普通技术人员可以理解实现上述实施例的全部或部分流程，并依本发明权利要求所作的等同变化，仍属于发明所涵盖的范围。

Claims (16)

  1. 一种驱动电路，其用于液晶显示器，其中，所述驱动电路包括CE(Color Enhancement，色彩增强技术)电路、存储器、数据补偿电路及时序控制器，所述CE电路、所述数据补偿电路及所述时序控制器依次电性相连，所述存储器与所述数据补偿电路电性相连，所述CE电路用于接收图像数据，并对该图像数据进行增加图像色彩的处理，所述存储器用于存储用于对所述液晶显示器进行mura补偿的补偿值，所述数据补偿电路用于从所述存储器中获取与所述图像数据对应的补偿值，并进行补偿运算，所述时序控制器用于从所述数据补偿电路接收经过补偿运算后的图像数据，并将经过补偿运算后的图像数据转换成所述液晶显示器所需要的信号。
  2. 如权利要求1所述的驱动电路，其中，所述存储器用于存储所述液晶显示器各个触控阶段的补偿值，所述触控阶段基于该液晶显示器的垂直扫描方向的行数进行划分。
  3. 如权利要求2所述的驱动电路，其中，所述数据补偿电路包括计数器及补偿计算模块，所述驱动电路还包括行同步信号，所述计数器侦测所述行同步信号，并根据该行同步信号来判断当前图像数据所在的行数，进而判断当前图像数据所在的触控阶段，所述补偿计算模块根据当前图像数据所在的触控阶段从所述存储器取出相应的补偿值，并进行补偿运算。
  4. 如权利要求3所述的驱动电路，其中，所述补偿运算为将当前图像数据与所述补偿值相加或者相减。
  5. 如权利要求1所述的驱动电路，其中，所述驱动电路还包括连接至所述CE电路与所述数据补偿电路之间的CABC(Content Adaptive Brightness Control，内容对应背光控制技术)电路，所述CABC电路用于从所述CE电路 接收所述图像数据，并根据当前显示的画面进行省电调整。
  6. 如权利要求2所述的驱动电路，其中，所述驱动电路还包括连接至所述CE电路与所述数据补偿电路之间的CABC电路，所述CABC电路用于从所述CE电路接收所述图像数据，并根据当前显示的画面进行省电调整。
  7. 如权利要求3所述的驱动电路，其中，所述驱动电路还包括连接至所述CE电路与所述数据补偿电路之间的CABC电路，所述CABC电路用于从所述CE电路接收所述图像数据，并根据当前显示的画面进行省电调整。
  8. 如权利要求4所述的驱动电路，其中，所述驱动电路还包括连接至所述CE电路与所述数据补偿电路之间的CABC电路，所述CABC电路用于从所述CE电路接收所述图像数据，并根据当前显示的画面进行省电调整。
  9. 一种液晶显示器，其包括驱动电路及与该驱动电路相连的液晶显示面板，其中，所述驱动电路包括CE(Color Enhancement，色彩增强技术)电路、存储器、数据补偿电路及时序控制器，所述CE电路、所述数据补偿电路及所述时序控制器依次电性相连，所述存储器与所述数据补偿电路电性相连，所述CE电路用于接收图像数据，并对该图像数据进行增加图像色彩的处理，所述存储器用于存储用于对所述液晶显示器进行mura补偿的补偿值，所述数据补偿电路用于从所述存储器中获取与所述图像数据对应的补偿值，并进行补偿运算，所述时序控制器用于从所述数据补偿电路接收经过补偿运算后的图像数据，并将经过补偿运算后的图像数据转换成液晶显示器所需要的信号，并输出至所述液晶显示面板。
  10. 如权利要求9所述的液晶显示器，其中，所述存储器用于存储所述液晶显示器各个触控阶段的补偿值，所述触控阶段基于该液晶显示器的垂直扫描方向的行数进行划分。
  11. 如权利要求10所述的液晶显示器，其中，所述数据补偿电路包括计数器及补偿计算模块，所述驱动电路还包括行同步信号，所述计数器侦测所述行同步信号，并根据该行同步信号来判断当前图像数据所在的行数，进而判断当前图像数据所在的触控阶段，所述补偿计算模块根据当前图像数据所在的触控阶段从所述存储器取出相应的补偿值，并进行补偿运算。
  12. 如权利要求11所述的液晶显示器，其中，所述补偿运算为将当前图像数据与所述补偿值相加或者相减。
  13. 如权利要求9所述的液晶显示器，其中，所述驱动电路还包括连接至所述CE电路与所述数据补偿电路之间的CABC(Content Adaptive Brightness Control，内容对应背光控制技术)电路，所述CABC电路用于从所述CE电路接收所述图像数据，并根据当前显示的画面进行省电调整。
  14. 如权利要求10所述的液晶显示器，其中，所述驱动电路还包括连接至所述CE电路与所述数据补偿电路之间的CABC电路，所述CABC电路用于从所述CE电路接收所述图像数据，并根据当前显示的画面进行省电调整。
  15. 如权利要求11所述的液晶显示器，其中，所述驱动电路还包括连接至所述CE电路与所述数据补偿电路之间的CABC电路，所述CABC电路用于从所述CE电路接收所述图像数据，并根据当前显示的画面进行省电调整。
  16. 如权利要求12所述的液晶显示器，其中，所述驱动电路还包括连接至所述CE电路与所述数据补偿电路之间的CABC电路，所述CABC电路用于从所述CE电路接收所述图像数据，并根据当前显示的画面进行省电调整。
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