WO2018014375A1 - 数据信号驱动方法以及驱动装置、液晶显示器 - Google Patents

数据信号驱动方法以及驱动装置、液晶显示器 Download PDF

Info

Publication number
WO2018014375A1
WO2018014375A1 PCT/CN2016/093127 CN2016093127W WO2018014375A1 WO 2018014375 A1 WO2018014375 A1 WO 2018014375A1 CN 2016093127 W CN2016093127 W CN 2016093127W WO 2018014375 A1 WO2018014375 A1 WO 2018014375A1
Authority
WO
WIPO (PCT)
Prior art keywords
line
data signal
voltage
nth
current
Prior art date
Application number
PCT/CN2016/093127
Other languages
English (en)
French (fr)
Inventor
黄笑宇
Original Assignee
深圳市华星光电技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市华星光电技术有限公司 filed Critical 深圳市华星光电技术有限公司
Priority to US15/309,747 priority Critical patent/US10062339B2/en
Publication of WO2018014375A1 publication Critical patent/WO2018014375A1/zh

Links

Images

Classifications

    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/34Control 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
    • G09G3/36Control 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
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/34Control 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
    • G09G3/36Control 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
    • G09G3/3611Control of matrices with row and column drivers
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/2092Details of a display terminals using a flat panel, the details relating to the control arrangement of the display terminal and to the interfaces thereto
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362Active matrix addressed cells
    • G02F1/136286Wiring, e.g. gate line, drain line
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/34Control 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
    • G09G3/36Control 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
    • G09G3/3611Control of matrices with row and column drivers
    • G09G3/3685Details of drivers for data electrodes
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00Aspects of the constitution of display devices
    • G09G2300/04Structural and physical details of display devices
    • G09G2300/0421Structural details of the set of electrodes
    • G09G2300/0426Layout of electrodes and connections
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00Command of the display device
    • G09G2310/02Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0264Details of driving circuits
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00Control of display operating conditions
    • G09G2320/02Improving the quality of display appearance
    • G09G2320/0223Compensation for problems related to R-C delay and attenuation in electrodes of matrix panels, e.g. in gate electrodes or on-substrate video signal electrodes

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a data signal driving method and a corresponding driving device, and to a liquid crystal display.
  • Liquid Crystal Display is a flat ultra-thin display device consisting of a certain number of color or black-and-white pixels placed in front of a light source or a reflective surface. LCD monitors have low power consumption and are characterized by high image quality, small size, and light weight. Therefore, they are favored by everyone and become the mainstream of displays.
  • the liquid crystal display is mainly a Thin Film Transistor (TFT) liquid crystal display, and the liquid crystal display panel is a main component of the liquid crystal display.
  • the liquid crystal display panel generally includes a color film substrate and a TFT array substrate disposed opposite to each other and sandwiched between the two substrates. The liquid crystal layer between.
  • the driving of the display panel is performed by the gate driving device and the data driving device respectively supplying scan signals and data signals to the respective sub-pixels in the display panel, and the voltage difference between the different data signal voltages and the common electrode voltage causes the liquid crystals to have different rotation angles.
  • the difference in brightness is formed, that is, the display of the liquid crystal panel forms different gray scales.
  • the display panel includes a display area and a fan-out area, wherein the display area is provided with data lines, and the fan-out area is provided with connection lines, and each connection line is connected to a data line.
  • the data signal provided by the data driving device is input to the data line through the connection line of the fan-out area to charge the pixel.
  • the difference between the impedance of the edge of a group of fan-out areas and the middle of the connecting line is relatively large. Since the impedance difference of the fan-out area is too large, the voltage drop of the data signal voltage on each connection line of the fan-out area is different, and the data signal voltage input to the data line is inconsistent, resulting in the middle portion of the display panel when the display panel is displayed. There is a difference between the two sides, resulting in a mixed color shift or bright spots, which reduces the display quality and reduces the display quality of the display panel.
  • the present invention provides a data signal driving method and a driving device, which respectively input a compensation voltage to each connection line according to the resistance difference of the connection line of the fan-out area, so that the data signal voltage is input. It tends to be consistent when going to each data line, improving the display quality of the display panel.
  • a data signal driving method is applied to a display panel, the display panel includes a display area and a fan-out area, wherein the display area is provided with a data line, and the fan-out area is provided with a connection line, and each connection line is a data line is connected to each other, wherein the method includes: inputting a reference voltage to the connection line to acquire a current in the connection line; and setting a connection line at a middle of the fan-out area as a first connection line, The first connecting line is the reference datum, so that the resistance of the first connecting line is zero. According to the calculation formula of the current of each connecting line, the reference voltage is equal to the middle, and the second to Nth pieces are respectively calculated.
  • connection line a resistance of the connection line
  • a data signal voltage is input to the connection line
  • a compensation voltage is input to the second to Nth connection lines according to the data signal voltage and the resistances of the second to Nth connection lines, respectively After applying the data signal voltage and the compensation voltage, the currents in the respective connection lines are equal; wherein the Nth connection line refers to the most edge connection line of the fan-out area, and N is an integer greater than 2.
  • the method for acquiring the compensation voltage of the second to Nth connection lines includes: inputting a data signal voltage V d to the connection line, and inputting a compensation voltage V xn to the nth connection line; at this time, the first connection line Current I 11 is:
  • the method for acquiring the compensation voltage of the second to Nth connection lines includes: inputting a data signal voltage V d to the connection line, and inputting a compensation voltage V xn to the nth connection line; at this time, the first connection line Current I 11 is:
  • Another aspect of the present invention provides a data signal driving apparatus for providing a data signal to a display panel, the display panel including a display area and a fan-out area, wherein the display area is provided with a data line, the fan-out A connecting line is disposed in the area, and each connecting line is connected to a data line, wherein a connecting line defining a middle of the fan-out area is a first connecting line, and a connecting line at the outermost edge of the fan-out area is a N data lines
  • the data signal driving device comprising: a data signal driver for inputting a reference voltage or a data signal voltage to the connection line; a current acquisition module for acquiring current in the connection line; and a resistance calculation module For the reference line of the first connecting line, the value of the resistance of the first connecting line is zero.
  • the reference voltage is equal to the middle, and the second is calculated and obtained.
  • a resistance to the Nth connection line a voltage compensation module for inputting the second to Nth connection lines according to the data signal voltage and the resistance of the second to Nth connection lines, respectively A voltage is compensated such that after applying the data signal voltage and the compensation voltage, the currents in the respective connection lines are equal; wherein N is an integer greater than two.
  • the method of determining the compensation voltage to the input voltage compensation module article to N-th connection lines comprising: drive means when said normal operation, the data signal driver input voltage V d is a data signal to the cable,
  • the voltage compensation module is configured to input a compensation voltage V xn to the nth connection line; at this time, the current I 11 of the first connection line is:
  • the method of determining the compensation voltage to the input voltage compensation module article to N-th connection lines comprising: drive means when said normal operation, the data signal driver input voltage V d is a data signal to the cable,
  • the voltage compensation module is configured to input a compensation voltage V xn to the nth connection line; at this time, the current I 11 of the first connection line is:
  • the data signal driving method and the driving device provided by the embodiment of the present invention firstly calculate the resistance of each connecting line of the fan-out area according to the reference voltage, and input a compensation to each connecting line according to the difference in resistance of the connecting line of the fan-out area.
  • the voltage is such that the data signal voltage tends to be uniform when input to each data line, improving the display quality of the display panel.
  • FIG. 1 is a schematic structural diagram of a liquid crystal display according to an embodiment of the present invention.
  • connection line and a data line are connected to each other;
  • FIG. 3 is a schematic structural diagram of a data signal driving apparatus according to an embodiment of the present invention.
  • the liquid crystal display includes a display panel 10, a data signal driving device 20, a gate signal driving device 30, and a timing controller 40.
  • the timing controller 40 is configured to provide a timing control signal to the data signal driving device 20 and the gate signal driving device 30, and also to transmit an image signal to be displayed to the data signal driving device 20.
  • the data signal driving device 20 according to the timing control signal received from the timing controller 40 and to be displayed
  • the image signal generating corresponding data signal is supplied to the display panel 10, and the gate signal driving device 30 generates a corresponding scan signal according to the timing control signal received from the timing controller 40, and supplies the corresponding scan signal to the display panel. 10.
  • the display panel 10 includes a display area 10a and a fan-out area 10b.
  • the display area 10a is provided with a plurality of data lines D and a plurality of scanning lines S which are criss-crossed, and an intersection area of the data lines D and the scanning lines S is formed with sub-pixels (not shown in the drawing).
  • the fan-out area 10b is provided with a connection line L. Each connection line L and a data line D are connected to each other, and the data signal provided by the data driving device 20 is input to the data line D through the connection line L of the fan-out area 10b. The sub-pixels are charged.
  • the fan-out region 10b defining the most middle of the connection line is connected to a first line section L 1, L 1 from both side edges toward the first connecting line section, respectively of the order of n Strip connection line L n .
  • the Nth connection line L N is the connection line of the outermost edge of the fan-out area 10b.
  • the resistance R F1 represents the resistance of the first connection line L 1
  • R Fn represents the resistance of the nth connection line L n
  • R FN represents the resistance of the Nth connection line L N
  • R D represents the resistance of each data line D. Due to the different lengths of the connecting lines, the resistors R F1 ⁇ R Fn ⁇ R FN are unequal to each other. In the present invention, when the resistance is calculated, the first connecting line L 1 is used as a reference. Therefore, in the calculation formula referred to below, the value of the resistor R F1 is zero.
  • the data signal driving driving device 20 includes a data signal driver 201, a current acquisition module 202, a resistance calculation module 203, and a voltage compensation module 204.
  • the data signal driver 201 is mainly used to input a data signal voltage to the connection line L to implement providing a data signal to the display panel 10.
  • the current acquisition module 202 is configured to acquire current in the connection line L.
  • the resistance calculation module 203 calculates the resistance of each connection line L according to the circuit acquired by the current acquisition module 202.
  • the voltage compensation module 204 is configured to input a compensation voltage to the second to Nth connection lines, so that the currents in the respective connection lines L are equal after the application of the data signal voltage and the compensation voltage.
  • the data signal driver 201 is implemented by a structure of a chip on film (COF).
  • COF chip on film
  • the current acquisition module 202 and the resistance calculation module 203 and the voltage compensation module 204 may also be disposed in the same flip chip chip, or may be separately disposed on another printed circuit board.
  • the driving of the data signal driving driving device 20 as described above will be described in detail below with reference to FIGS. 2 and 3.
  • the driving method specifically includes:
  • connection line Inputting a reference voltage to the connection line to obtain a current in the connection line. Specifically, when the data signal driving device 20 is first activated, the data signal driver 201 inputs a reference voltage V S to each of the connection lines L, and the current acquisition module 202 acquires the current I of the first connection line L 1 . 10 is: Obtaining the current I n0 of the nth connection line L n is:
  • the resistance of the second to Nth connection lines is calculated by using the reference voltage as the intermediate equivalent amount.
  • the resistance calculation module 203 according to equation (1-1) and (1-2), so that the value of R F1 is 0, V S as an intermediate in an equivalent amount, calculated Where n is sequentially taken as 2, 3, ..., N-1, N, and the resistances of the second to Nth connection lines are sequentially calculated.
  • the voltage compensation module 204 inputs a compensation voltage V xn to the nth connection line such that the currents in the respective connection lines are equal after the application of the data signal voltage V d and the compensation voltage V xn .
  • the method for determining the compensation voltage V xn includes:
  • the voltage compensation module 204 inputs the compensation voltage V xn to the nth connection line L n according to the calculation result of the formula (2-4), so that the data signal voltage V d and the compensation voltage V xn are applied. After that, the currents in the respective connecting lines are equal.
  • the driving method of the data signal driving driving device 20 is further Can be as follows:
  • connection line Inputting a reference voltage to the connection line to obtain a current in the connection line. Specifically, when the data signal driving device 20 is first activated, the data signal driver 201 inputs a reference voltage V S to each of the connection lines L, and the current acquisition module 202 acquires the current I of the first connection line L 1 . 10 is: Obtain the current I N0 of the Nth connection line as:
  • the voltage compensation module 204 inputs a compensation voltage V xn to the nth connection line such that the currents in the respective connection lines are equal after the application of the data signal voltage V d and the compensation voltage V xn .
  • the method for determining the compensation voltage V xn includes:
  • the voltage compensation module 204 inputs the compensation voltage V xn to the nth connection line L n according to the calculation result of the formula (4-4), so that the data signal voltage V d and the compensation voltage V xn are applied. After that, the currents in the respective connecting lines are equal.
  • the data signal driving method and the driving device provided by the embodiment of the present invention firstly calculate the resistance of each connecting line of the fan-out area according to the reference voltage, and respectively according to the resistance difference of the connecting line of the fan-out area.
  • the connection line inputs a compensation voltage so that the data signal voltage tends to be consistent when input to each data line, improving the display quality of the display panel.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Nonlinear Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Mathematical Physics (AREA)
  • Optics & Photonics (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Liquid Crystal (AREA)

Abstract

一种数据信号驱动方法和应用数据信号驱动方法的驱动装置,数据信号驱动方法应用于显示面板(10),显示面板(10)包括显示区域(10a)和扇出区域(10b),扇出区域(10b)中设置有连接线(L),每一连接线(L)与一数据线(D)相互连接,该方法包括:向连接线(L)输入一基准电压(V S),获取连接线(L)中的电流(I 10、…、I N0);设置扇出区域(10b)最中间的连接线为第1条连接线(L 1),以第1条连接线(L 1)为参考基准,分别计算获取第n条连接线(Ln)的电阻(R Fn),其中,n=2、3、…、N-1、N;向连接线(L)输入数据信号电压(V d);根据数据信号电压(V d)以及第n条连接线(Ln)的电阻(R Fn),分别向第n条连接线(Ln)输入一补偿电压(V xn),以使在施加数据信号电压(V d)和补偿电压(V xn)后,各个连接线(L)中的电流(I 11、…、I n1、…)相等;其中,第N条连接线(L N)是指扇出区域(10b)的最边缘的连接线,N为大于2的整数。

Description

数据信号驱动方法以及驱动装置、液晶显示器 技术领域
本发明涉及显示器技术领域,特别涉及一种数据信号驱动方法以及相应的驱动装置、还涉及一种液晶显示器。
背景技术
液晶显示器(Liquid Crystal Display,LCD),为平面超薄的显示设备,它由一定数量的彩色或黑白像素组成,放置于光源或者反射面前方。液晶显示器功耗很低,并且具有高画质、体积小、重量轻的特点,因此倍受大家青睐,成为显示器的主流。目前液晶显示器是以薄膜晶体管(Thin Film Transistor,TFT)液晶显示器为主,液晶显示面板是液晶显示器的主要组件,液晶显示面板一般包括相对设置的彩膜基板和TFT阵列基板以及夹在两基板之间的液晶层。
显示面板的驱动是由栅极驱动装置和数据驱动装置分别向显示面板中各个子像素提供扫描信号和数据信号的,不同的数据信号电压与共电极电压之间的压差造成液晶体旋转角度不同从而形成亮度的差异,即液晶面板的显示形成不同的灰阶。显示面板包括显示区域和扇出区域,所述显示区域中设置有数据线,所述扇出区域中设置有连接线,每一连接线与一数据线相互连接。数据驱动装置提供的数据信号通过扇出区域的连接线输入到数据线中对像素进行充电。
在显示面板设计中,一组扇出区域的边缘和中间的连接线阻抗差异比较大。由于扇出区域的阻抗差异太大,数据信号电压在扇出区域的各个连接线上的压降不同,输入到数据线中的数据信号电压不一致,导致在显示面板显示时,显示面板的中间部分与两侧部分出现差异,产生混色色偏或者亮斑,降低显示品质,降低显示面板的显示品质。
发明内容
鉴于现有技术的不足,本发明提供了一种数据信号驱动方法以及驱动装置,根据扇出区域的连接线的电阻差异,分别向每一连接线输入一补偿电压,以使数据信号电压在输入到各个数据线时趋于一致,提高显示面板的显示品质。
为了实现上述目的,本发明采用了如下的技术方案:
一种数据信号驱动方法,应用于显示面板,所述显示面板包括显示区域和扇出区域,所述显示区域中设置有数据线,所述扇出区域中设置有连接线,每一连接线与一数据线相互连接,其中,该方法包括:向所述连接线输入一基准电压,获取所述连接线中的电流;设置所述扇出区域最中间的连接线为第1条连接线,以第1条连接线为参考基准,令第1条连接线的电阻的取值为零,根据各个连接线的电流的计算公式,以基准电压为中间等量,分别计算获取第2至第N条连接线的电阻;向所述连接线输入数据信号电压;根据所述数据信号电压以及第2至第N条连接线的电阻,分别向第2至第N条连接线输入一补偿电压,以使在施加所述数据信号电压和所述补偿电压后,各个连接线中的电流相等;其中,第N条连接线是指所述扇出区域的最边缘的连接线,N为大于2的整数。
其中,第2至第N条连接线的电阻的获取方法包括:向所述连接线输入一基准电压VS,获取第1条连接线的电流I10为:
Figure PCTCN2016093127-appb-000001
获取第n条连接线的电流In0为:
Figure PCTCN2016093127-appb-000002
其中,RF1表示第1条连接线的电阻,RFn表示第n条连接线的电阻,RD表示每一数据线的电阻;根据公式(1-1)和(1-2),令RF1的取值为0,以VS为中间等量,计算出
Figure PCTCN2016093127-appb-000003
其中,n=2、3、…、N-1、N。
其中,第2至第N条连接线的补偿电压的获取方法包括:向所述连接线输入数据信号电压Vd,向第n条连接线输入补偿电压Vxn;此时第1条连接线的电流I11为:
Figure PCTCN2016093127-appb-000004
第n条连接线的电流In1为:
Figure PCTCN2016093127-appb-000005
Figure PCTCN2016093127-appb-000006
根据公式(2-1)和(2-2),令电流I11=In1,并且RF1的取值为0,计算出
Figure PCTCN2016093127-appb-000007
将公式(1-3)代入公式(2-3),得出第n条连接线输入的补偿电压
Figure PCTCN2016093127-appb-000008
其中,第2至第N条连接线的电阻的获取方法包括:向所述连接线输入一 基准电压VS,获取第1条连接线的电流I10为:
Figure PCTCN2016093127-appb-000009
获取第N条连接线的电流IN0为:
Figure PCTCN2016093127-appb-000010
其中,RF1表示第1条连接线的电阻,RFN表示第N条连接线的电阻,RD表示每一数据线的电阻;根据公式(3-1)和(3-2),令RF1的取值为0,以VS为中间等量,计算出
Figure PCTCN2016093127-appb-000011
根据以下公式(3-4)计算第n条连接线的电阻RFn
Figure PCTCN2016093127-appb-000012
其中,n=2、3、…、N-1、N。
其中,第2至第N条连接线的补偿电压的获取方法包括:向所述连接线输入数据信号电压Vd,向第n条连接线输入补偿电压Vxn;此时第1条连接线的电流I11为:
Figure PCTCN2016093127-appb-000013
第n条连接线的电流In1为:
Figure PCTCN2016093127-appb-000014
Figure PCTCN2016093127-appb-000015
根据公式(4-1)和(4-2),令电流I11=In1,并且RF1的取值为0,计算出
Figure PCTCN2016093127-appb-000016
将公式(3-4)代入公式(4-3),得出第n条连接线输入的补偿电压Vxn为:
Figure PCTCN2016093127-appb-000017
本发明的另一方面是提供一种数据信号驱动装置,用于向显示面板提供数据信号,所述显示面板包括显示区域和扇出区域,所述显示区域中设置有数据线,所述扇出区域中设置有连接线,每一连接线与一数据线相互连接,其中,定义所述扇出区域最中间的连接线为第1条连接线,所述扇出区域最边缘的连接线为第N条连接线,所述数据信号驱动装置包括:数据信号驱动器,用于向所述连接线输入基准电压或数据信号电压;电流获取模块,用于获取所述连接线中的电流;电阻计算模块,用于以第1条连接线为参考基准,令第1条连接线的电阻的取值为零,根据各个连接线的电流的计算公式,以基准电压为中间等量,分别计算获取第2至第N条连接线的电阻;电压补偿模块,用于根据所述数据信号电压以及第2至第N条连接线的电阻,分别向第2至第N条连接线输入一补偿电压,以使在施加所述数据信号电压和所述补偿电压后,各个连接线中的电流相等;其中,N为大于2的整数。
其中,所述电阻计算模块获取第2至第N条连接线的电阻的过程包括:所述驱动装置首次启动时,所述数据信号驱动器向所述连接线输入一基准电压VS, 所述电流获取模块获取第1条连接线的电流I10为:
Figure PCTCN2016093127-appb-000018
获取第n条连接线的电流In0为:
Figure PCTCN2016093127-appb-000019
其中,RF1表示第1条连接线的电阻,RFn表示第n条连接线的电阻,RD表示每一数据线的电阻;所述电阻计算模块根据公式(1-1)和(1-2),令RF1的取值为0,以VS为中间等量,计算出
Figure PCTCN2016093127-appb-000020
其中,n=2、3、…、N-1、N。
其中,所述电压补偿模块向第2至第N条连接线输入的补偿电压的确定方法包括:所述驱动装置正常工作时,所述数据信号驱动器向所述连接线输入数据信号电压Vd,设定所述电压补偿模块向第n条连接线输入补偿电压Vxn;此时第1条连接线的电流I11为:
Figure PCTCN2016093127-appb-000021
第n条连接线的电流In1为:
Figure PCTCN2016093127-appb-000022
根据公式(2-1)和(2-2),令电流I11=In1,并且RF1的取值为0,计算出
Figure PCTCN2016093127-appb-000023
将公式(1-3)代入公式(2-3),得出第n条连接线输入的补偿电压Vxn为:
Figure PCTCN2016093127-appb-000024
其中,所述电阻计算模块获取第2至第N条连接线的电阻的过程包括:所述驱动装置首次启动时,所述数据信号驱动器向所述连接线输入一基准电压VS,所述电流获取模块获取第1条连接线的电流I10为:
Figure PCTCN2016093127-appb-000025
获取第N条连接线的电流IN0为:
Figure PCTCN2016093127-appb-000026
其中,RF1表示第1条连接线的电阻,RFN表示第N条连接线的电阻,RD表示每一数据线的电阻;所述电阻计算模块根据公式(3-1)和(3-2),令RF1的取值为0,以VS为中间等量,计算出
Figure PCTCN2016093127-appb-000027
再根据以下公式(3-4)计算第n条连接线的电阻RFn
Figure PCTCN2016093127-appb-000028
其中,n=2、3、…、N-1、N。
其中,所述电压补偿模块向第2至第N条连接线输入的补偿电压的确定方法包括:所述驱动装置正常工作时,所述数据信号驱动器向所述连接线输入数 据信号电压Vd,设定所述电压补偿模块向第n条连接线输入补偿电压Vxn;此时第1条连接线的电流I11为:
Figure PCTCN2016093127-appb-000029
第n条连接线的电流In1为:
Figure PCTCN2016093127-appb-000030
根据公式(4-1)和(4-2),令电流I11=In1,并且RF1的取值为0,计算出
Figure PCTCN2016093127-appb-000031
将公式(3-4)代入公式(4-3),得出第n条连接线输入的补偿电压Vxn为:
Figure PCTCN2016093127-appb-000032
本发明实施例提供的数据信号驱动方法以及驱动装置,首先根据基准电压计算获取扇出区域的各个连接线的电阻,根据扇出区域的连接线的电阻差异,分别向每一连接线输入一补偿电压,以使数据信号电压在输入到各个数据线时趋于一致,提高显示面板的显示品质。
附图说明
图1是本发明实施例提供的液晶显示器的结构示意图;
图2是连接线和数据线相互连接的等效电路图;
图3是本发明实施例提供的数据信号驱动装置的结构示意图。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚,下面结合附图对本发明的具体实施方式进行详细说明。这些优选实施方式的示例在附图中进行了例示。附图中所示和根据附图描述的本发明的实施方式仅仅是示例性的,并且本发明并不限于这些实施方式。
在此,还需要说明的是,为了避免因不必要的细节而模糊了本发明,在附图中仅仅示出了与根据本发明的方案密切相关的结构和/或处理步骤,而省略了与本发明关系不大的其他细节。
本实施例提供了一种液晶显示器,如图1所示,所述液晶显示器包括显示面板10、数据信号驱动装置20、栅极信号驱动装置30以及时序控制器40。其中,所述时序控制器40用于向数据信号驱动装置20和栅极信号驱动装置30提供时序控制信号,并且还向数据信号驱动装置20发送待显示的图像信号。所述数据信号驱动装置20根据从所述时序控制器40接收到的时序控制信号和待显 示的图像信号生成相应的数据信号提供给所述显示面板10,所述栅极信号驱动装置30根据从所述时序控制器40接收到的时序控制信号生成相应的扫描信号提供给所述显示面板10。
其中,所述显示面板10包括显示区域10a和扇出区域10b。所述显示区域10a设置有纵横交错的多条数据线D和多条扫描线S,数据线D和扫描线S的交叉区域形成有子像素(附图中未示出)。所述扇出区域10b中设置有连接线L,每一连接线L与一数据线D相互连接,数据驱动装置20提供的数据信号通过扇出区域10b的连接线L输入到数据线D中对子像素进行充电。
其中,如图2所示的等效电路图,定义所述扇出区域10b最中间的连接线为第1条连接线L1,从第1条连接线L1朝向两侧边缘分别依次为第n条连接线Ln。其中,n=2、3、…、N-1、N,N为大于2的整数。当n=N时,第N条连接线LN为所述扇出区域10b最边缘的连接线。进一步地,如图2所示,电阻RF1表示第1条连接线L1的电阻,RFn表示第n条连接线Ln的电阻,RFN表示第N条连接线LN的电阻,RD表示每一数据线D的电阻。由于连接线的长度不同,电阻RF1~RFn~RFN之间是互不相等的。在本发明中,在计算电阻时,是以第1条连接线L1为参考基准的,因此,在以下涉及到的计算公式中,电阻RF1的取值为零。
为了解决扇出区域10b中连接线L长度不一而导致显示面板出现混色色偏或者亮斑的问题,本实施例中提供了一种数据信号驱动驱动装置及其相应的驱动方法。如图3所示,所述数据信号驱动装置20包括数据信号驱动器201、电流获取模块202、电阻计算模块203以及电压补偿模块204。
其中,所述数据信号驱动器201主要是用于向所述连接线L输入数据信号电压,以实现向显示面板10提供数据信号。所述电流获取模块202则是用于获取所述连接线L中的电流。所述电阻计算模块203根据所述电流获取模块202获取的电路,计算出各个连接线L的电阻。所述电压补偿模块204则用于向第2至第N条连接线输入一补偿电压,以使在施加数据信号电压和补偿电压后,各个连接线L中的电流相等。
其中,所述数据信号驱动器201是以覆晶薄膜芯片(Chip On Film,COF)的结构实现。电流获取模块202以及电阻计算模块203和电压补偿模块204也可以是设置在同一覆晶薄膜芯片中,也可以是单独设置在另外的印刷电路板上。
下面结合图2和图3,详细介绍如上所述的数据信号驱动驱动装置20的驱 动方法,该驱动方法具体包括:
(一)、向所述连接线输入一基准电压,获取所述连接线中的电流。具体地,在所述数据信号驱动装置20首次启动时,所述数据信号驱动器201向各个连接线L输入一基准电压VS,所述电流获取模块202获取第1条连接线L1的电流I10为:
Figure PCTCN2016093127-appb-000033
获取第n条连接线Ln的电流In0为:
Figure PCTCN2016093127-appb-000034
Figure PCTCN2016093127-appb-000035
(二)、根据各个连接线的电流的计算公式,以基准电压为中间等量,分别计算获取第2至第N条连接线的电阻。具体地,所述电阻计算模块203根据公式(1-1)和(1-2),令RF1的取值为0,以VS为中间等量,计算出
Figure PCTCN2016093127-appb-000036
Figure PCTCN2016093127-appb-000037
其中,n依次取值为2、3、…、N-1、N,依次计算获取第2至第N条连接线的电阻。
(三)、向所述连接线输入数据信号电压。具体地,所述数据信号驱动装置20正常工作时,所述数据信号驱动器201向所述连接线L输入数据信号电压Vd
(四)、根据所述数据信号电压以及第2至第N条连接线的电阻,分别向第2至第N条连接线输入一补偿电压。具体地,所述电压补偿模块204向第n条连接线输入补偿电压Vxn,以使在施加所述数据信号电压Vd和所述补偿电压Vxn后,各个连接线中的电流相等。补偿电压Vxn的确定方法包括:
在施加所述数据信号电压Vd和所述补偿电压Vxn后,第1条连接线L1的电流I11为:
Figure PCTCN2016093127-appb-000038
第n条连接线Ln的电流In1为:
Figure PCTCN2016093127-appb-000039
Figure PCTCN2016093127-appb-000040
根据公式(2-1)和(2-2),令电流I11=In1,并且RF1的取值为0,计算出
Figure PCTCN2016093127-appb-000041
将公式(1-3)代入公式(2-3),得出第n条连接线输入的补偿电压Vxn为:
Figure PCTCN2016093127-appb-000042
由此,所述电压补偿模块204按照公式(2-4)的计算结果向第n条连接线Ln输入补偿电压Vxn,使得在施加所述数据信号电压Vd和所述补偿电压Vxn后,各个连接线中的电流相等。
在另一个优选的实施例中,所述的数据信号驱动驱动装置20的驱动方法还 可以按照如下方式:
(一)、向所述连接线输入一基准电压,获取所述连接线中的电流。具体地,在所述数据信号驱动装置20首次启动时,所述数据信号驱动器201向各个连接线L输入一基准电压VS,所述电流获取模块202获取第1条连接线L1的电流I10为:
Figure PCTCN2016093127-appb-000043
获取第N条连接线的电流IN0为:
Figure PCTCN2016093127-appb-000044
Figure PCTCN2016093127-appb-000045
(二)、根据各个连接线的电流的计算公式,以基准电压为中间等量,分别计算获取第2至第N条连接线的电阻。具体地,所述电阻计算模块203根据公式(3-1)和(3-2),令RF1的取值为0,以VS为中间等量,计算出
Figure PCTCN2016093127-appb-000046
Figure PCTCN2016093127-appb-000047
再根据以下公式(3-4)计算第n条连接线的电阻RFn
Figure PCTCN2016093127-appb-000048
其中,n=2、3、…、N-1、N。该方法主要应用与显示面板的面积较小,连接线L的数量较少的情形。
(三)、向所述连接线输入数据信号电压。具体地,所述数据信号驱动装置20正常工作时,所述数据信号驱动器201向所述连接线L输入数据信号电压Vd
(四)、根据所述数据信号电压以及第2至第N条连接线的电阻,分别向第2至第N条连接线输入一补偿电压。具体地,所述电压补偿模块204向第n条连接线输入补偿电压Vxn,以使在施加所述数据信号电压Vd和所述补偿电压Vxn后,各个连接线中的电流相等。补偿电压Vxn的确定方法包括:
在施加所述数据信号电压Vd和所述补偿电压Vxn后,第1条连接线L1的电流I11为:
Figure PCTCN2016093127-appb-000049
第n条连接线Ln的电流In1为:
Figure PCTCN2016093127-appb-000050
Figure PCTCN2016093127-appb-000051
根据公式(4-1)和(4-2),令电流I11=In1,并且RF1的取值为0,计算出
Figure PCTCN2016093127-appb-000052
将公式(3-4)代入公式(4-3),得出第n条连接线输入的补偿电压Vxn为:
Figure PCTCN2016093127-appb-000053
由此,所述电压补偿模块204按照公式(4-4)的计算结果向第n条连接线Ln输入补偿电压Vxn,使得在施加所述数据信号电压Vd和所述补偿电压Vxn后,各个连接线中的电流相等。
综上所述,本发明实施例提供的数据信号驱动方法以及驱动装置,首先根据基准电压计算获取扇出区域的各个连接线的电阻,根据扇出区域的连接线的电阻差异,分别向每一连接线输入一补偿电压,以使数据信号电压在输入到各个数据线时趋于一致,提高显示面板的显示品质。
需要说明的是,在本文中,诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来,而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。
以上所述仅是本申请的具体实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本申请原理的前提下,还可以做出若干改进和润饰,这些改进和润饰也应视为本申请的保护范围。

Claims (15)

  1. 一种数据信号驱动方法,应用于显示面板,所述显示面板包括显示区域和扇出区域,所述显示区域中设置有数据线,所述扇出区域中设置有连接线,每一连接线与一数据线相互连接,其中,该方法包括:
    向所述连接线输入一基准电压,获取所述连接线中的电流;
    设置所述扇出区域最中间的连接线为第1条连接线,以第1条连接线为参考基准,令第1条连接线的电阻的取值为零,根据各个连接线的电流的计算公式,以基准电压为中间等量,分别计算获取第2至第N条连接线的电阻;
    向所述连接线输入数据信号电压;
    根据所述数据信号电压以及第2至第N条连接线的电阻,分别向第2至第N条连接线输入一补偿电压,以使在施加所述数据信号电压和所述补偿电压后,各个连接线中的电流相等;
    其中,第N条连接线是指所述扇出区域的最边缘的连接线,N为大于2的整数。
  2. 根据权利要求1所述的数据信号驱动方法,其中,第2至第N条连接线的电阻的获取方法包括:
    向所述连接线输入一基准电压VS,获取第1条连接线的电流I10为:
    Figure PCTCN2016093127-appb-100001
    获取第n条连接线的电流In0为:
    Figure PCTCN2016093127-appb-100002
    Figure PCTCN2016093127-appb-100003
    其中,RF1表示第1条连接线的电阻,RFn表示第n条连接线的电阻,RD表示每一数据线的电阻;
    根据公式(1-1)和(1-2),令RF1的取值为0,以VS为中间等量,计算出
    Figure PCTCN2016093127-appb-100004
    其中,n=2、3、…、N-1、N。
  3. 根据权利要求2所述的数据信号驱动方法,其中,第2至第N条连接线的补偿电压的获取方法包括:
    向所述连接线输入数据信号电压Vd,向第n条连接线输入补偿电压Vxn;此 时第1条连接线的电流I11为:
    Figure PCTCN2016093127-appb-100005
    第n条连接线的电流In1为:
    Figure PCTCN2016093127-appb-100006
    根据公式(2-1)和(2-2),令电流I11=In1,并且RF1的取值为0,计算出
    Figure PCTCN2016093127-appb-100007
    将公式(1-3)代入公式(2-3),得出第n条连接线输入的补偿电压Vxn为:
    Figure PCTCN2016093127-appb-100008
  4. 根据权利要求1所述的数据信号驱动方法,其中,第2至第N条连接线的电阻的获取方法包括:
    向所述连接线输入一基准电压VS,获取第1条连接线的电流I10为:
    Figure PCTCN2016093127-appb-100009
    获取第N条连接线的电流IN0为:
    Figure PCTCN2016093127-appb-100010
    Figure PCTCN2016093127-appb-100011
    其中,RF1表示第1条连接线的电阻,RFN表示第N条连接线的电阻,RD表示每一数据线的电阻;
    根据公式(3-1)和(3-2),令RF1的取值为0,以VS为中间等量,计算出
    Figure PCTCN2016093127-appb-100012
    根据以下公式(3-4)计算第n条连接线的电阻RFn
    Figure PCTCN2016093127-appb-100013
    其中,n=2、3、…、N-1、N。
  5. 根据权利要求4所述的数据信号驱动方法,其中,第2至第N条连接线的补偿电压的获取方法包括:
    向所述连接线输入数据信号电压Vd,向第n条连接线输入补偿电压Vxn;此时第1条连接线的电流I11为:
    Figure PCTCN2016093127-appb-100014
    第n条连接线的电流In1为:
    Figure PCTCN2016093127-appb-100015
    根据公式(4-1)和(4-2),令电流I11=In1,并且RF1的取值为0,计算出
    Figure PCTCN2016093127-appb-100016
    将公式(3-4)代入公式(4-3),得出第n条连接线输入的补偿电压Vxn为:
    Figure PCTCN2016093127-appb-100017
  6. 一种数据信号驱动装置,用于向显示面板提供数据信号,所述显示面板包括显示区域和扇出区域,所述显示区域中设置有数据线,所述扇出区域中设置有连接线,每一连接线与一数据线相互连接,定义所述扇出区域最中间的连接线为第1条连接线,所述扇出区域最边缘的连接线为第N条连接线,其中,所述数据信号驱动装置包括:
    数据信号驱动器,用于向所述连接线输入基准电压或数据信号电压;
    电流获取模块,用于获取所述连接线中的电流;
    电阻计算模块,用于以第1条连接线为参考基准,令第1条连接线的电阻的取值为零,根据各个连接线的电流的计算公式,以基准电压为中间等量,分别计算获取第2至第N条连接线的电阻;
    电压补偿模块,用于根据所述数据信号电压以及第2至第N条连接线的电阻,分别向第2至第N条连接线输入一补偿电压,以使在施加所述数据信号电压和所述补偿电压后,各个连接线中的电流相等;
    其中,N为大于2的整数。
  7. 根据权利要求6所述的数据信号驱动装置,其中,所述电阻计算模块获取第2至第N条连接线的电阻的过程包括:
    所述驱动装置首次启动时,所述数据信号驱动器向所述连接线输入一基准电压VS,所述电流获取模块获取第1条连接线的电流I10为:
    Figure PCTCN2016093127-appb-100018
    Figure PCTCN2016093127-appb-100019
    获取第n条连接线的电流In0为:
    Figure PCTCN2016093127-appb-100020
    其中,RF1表示第1条连接线的电阻,RFn表示第n条连接线的电阻,RD表示每一数据线的电阻;
    所述电阻计算模块根据公式(1-1)和(1-2),令RF1的取值为0,以VS为中 间等量,计算出
    Figure PCTCN2016093127-appb-100021
    其中,n=2、3、…、N-1、N。
  8. 根据权利要求7所述的数据信号驱动装置,其中,所述电压补偿模块向第2至第N条连接线输入的补偿电压的确定方法包括:
    所述驱动装置正常工作时,所述数据信号驱动器向所述连接线输入数据信号电压Vd,设定所述电压补偿模块向第n条连接线输入补偿电压Vxn;此时第1条连接线的电流I11为:
    Figure PCTCN2016093127-appb-100022
    第n条连接线的电流In1为:
    Figure PCTCN2016093127-appb-100023
    根据公式(2-1)和(2-2),令电流I11=In1,并且RF1的取值为0,计算出
    Figure PCTCN2016093127-appb-100024
    将公式(1-3)代入公式(2-3),得出第n条连接线输入的补偿电压Vxn为:
    Figure PCTCN2016093127-appb-100025
  9. 根据权利要求6所述的数据信号驱动装置,其中,所述电阻计算模块获取第2至第N条连接线的电阻的过程包括:
    所述驱动装置首次启动时,所述数据信号驱动器向所述连接线输入一基准电压VS,所述电流获取模块获取第1条连接线的电流I10为:
    Figure PCTCN2016093127-appb-100026
    Figure PCTCN2016093127-appb-100027
    获取第N条连接线的电流IN0为:
    Figure PCTCN2016093127-appb-100028
    其中,RF1表示第1条连接线的电阻,RFN表示第N条连接线的电阻,RD表示每一数据线的电阻;
    所述电阻计算模块根据公式(3-1)和(3-2),令RF1的取值为0,以VS为中间等量,计算出
    Figure PCTCN2016093127-appb-100029
    再根据以下公式(3-4)计算第n条连接线的电阻RFn
    Figure PCTCN2016093127-appb-100030
    其中,n=2、3、…、N-1、N。
  10. 根据权利要求9所述的数据信号驱动装置,其中,所述电压补偿模块向第2至第N条连接线输入的补偿电压的确定方法包括:
    所述驱动装置正常工作时,所述数据信号驱动器向所述连接线输入数据信号电压Vd,设定所述电压补偿模块向第n条连接线输入补偿电压Vxn;此时第1条连接线的电流I11为:
    Figure PCTCN2016093127-appb-100031
    第n条连接线的电流In1为:
    Figure PCTCN2016093127-appb-100032
    根据公式(4-1)和(4-2),令电流I11=In1,并且RF1的取值为0,计算出
    Figure PCTCN2016093127-appb-100033
    将公式(3-4)代入公式(4-3),得出第n条连接线输入的补偿电压Vxn为:
    Figure PCTCN2016093127-appb-100034
  11. 一种液晶显示器,包括:
    显示面板,所述显示面板包括显示区域和扇出区域,所述显示区域中设置有数据线,所述扇出区域中设置有连接线,每一连接线与一数据线相互连接,定义所述扇出区域最中间的连接线为第1条连接线,所述扇出区域最边缘的连接线为第N条连接线;
    数据信号驱动装置,向所述显示面板提供数据信号;
    栅极信号驱动装置,向所述显示面板提供扫描信号;
    时序控制器,用于向所述数据信号驱动装置和栅极信号驱动装置提供时序控制信号,并且还向所述数据信号驱动装置发送待显示的图像信号;
    其中,所述数据信号驱动装置包括:
    数据信号驱动器,用于向所述连接线输入基准电压或数据信号电压;
    电流获取模块,用于获取所述连接线中的电流;
    电阻计算模块,用于以第1条连接线为参考基准,令第1条连接线的电阻的取值为零,根据各个连接线的电流的计算公式,以基准电压为中间等量,分别计算获取第2至第N条连接线的电阻;
    电压补偿模块,用于根据所述数据信号电压以及第2至第N条连接线的电阻,分别向第2至第N条连接线输入一补偿电压,以使在施加所述数据信号电压和所述补偿电压后,各个连接线中的电流相等;
    其中,N为大于2的整数。
  12. 根据权利要求11所述的液晶显示器,其中,所述电阻计算模块获取第2至第N条连接线的电阻的过程包括:
    所述驱动装置首次启动时,所述数据信号驱动器向所述连接线输入一基准电压VS,所述电流获取模块获取第1条连接线的电流I10为:
    Figure PCTCN2016093127-appb-100035
    Figure PCTCN2016093127-appb-100036
    获取第n条连接线的电流In0为:
    Figure PCTCN2016093127-appb-100037
    其中,RF1表示第1条连接线的电阻,RFn表示第n条连接线的电阻,RD表示每一数据线的电阻;
    所述电阻计算模块根据公式(1-1)和(1-2),令RF1的取值为0,以VS为中间等量,计算出
    Figure PCTCN2016093127-appb-100038
    其中,n=2、3、…、N-1、N。
  13. 根据权利要求12所述的液晶显示器,其中,所述电压补偿模块向第2至第N条连接线输入的补偿电压的确定方法包括:
    所述驱动装置正常工作时,所述数据信号驱动器向所述连接线输入数据信号电压Vd,设定所述电压补偿模块向第n条连接线输入补偿电压Vxn;此时第1条连接线的电流I11为:
    Figure PCTCN2016093127-appb-100039
    第n条连接线的电流In1为:
    Figure PCTCN2016093127-appb-100040
    根据公式(2-1)和(2-2),令电流I11=In1,并且RF1的取值为0,计算出
    Figure PCTCN2016093127-appb-100041
    将公式(1-3)代入公式(2-3),得出第n条连接线输入的补偿电压Vxn为:
    Figure PCTCN2016093127-appb-100042
  14. 根据权利要求11所述的液晶显示器,其中,所述电阻计算模块获取第 2至第N条连接线的电阻的过程包括:
    所述驱动装置首次启动时,所述数据信号驱动器向所述连接线输入一基准电压VS,所述电流获取模块获取第1条连接线的电流I10为:
    Figure PCTCN2016093127-appb-100043
    Figure PCTCN2016093127-appb-100044
    获取第N条连接线的电流IN0为:
    Figure PCTCN2016093127-appb-100045
    其中,RF1表示第1条连接线的电阻,RFN表示第N条连接线的电阻,RD表示每一数据线的电阻;
    所述电阻计算模块根据公式(3-1)和(3-2),令RF1的取值为0,以VS为中间等量,计算出
    Figure PCTCN2016093127-appb-100046
    再根据以下公式(3-4)计算第n条连接线的电阻RFn
    Figure PCTCN2016093127-appb-100047
    其中,n=2、3、…、N-1、N。
  15. 根据权利要求14所述的液晶显示器,其中,所述电压补偿模块向第2至第N条连接线输入的补偿电压的确定方法包括:
    所述驱动装置正常工作时,所述数据信号驱动器向所述连接线输入数据信号电压Vd,设定所述电压补偿模块向第n条连接线输入补偿电压Vxn;此时第1条连接线的电流I11为:
    Figure PCTCN2016093127-appb-100048
    第n条连接线的电流In1为:
    Figure PCTCN2016093127-appb-100049
    根据公式(4-1)和(4-2),令电流I11=In1,并且RF1的取值为0,计算出
    Figure PCTCN2016093127-appb-100050
    将公式(3-4)代入公式(4-3),得出第n条连接线输入的补偿电压Vxn为:
    Figure PCTCN2016093127-appb-100051
PCT/CN2016/093127 2016-07-20 2016-08-03 数据信号驱动方法以及驱动装置、液晶显示器 WO2018014375A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US15/309,747 US10062339B2 (en) 2016-07-20 2016-08-03 Data signal driving method, driving device and liquid crystal display device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610574601.2 2016-07-20
CN201610574601.2A CN105976783B (zh) 2016-07-20 2016-07-20 数据信号驱动方法以及驱动装置

Publications (1)

Publication Number Publication Date
WO2018014375A1 true WO2018014375A1 (zh) 2018-01-25

Family

ID=56953073

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/093127 WO2018014375A1 (zh) 2016-07-20 2016-08-03 数据信号驱动方法以及驱动装置、液晶显示器

Country Status (3)

Country Link
US (1) US10062339B2 (zh)
CN (1) CN105976783B (zh)
WO (1) WO2018014375A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112201165A (zh) * 2020-10-23 2021-01-08 Tcl华星光电技术有限公司 显示装置以及电子设备

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107978291A (zh) * 2017-12-29 2018-05-01 深圳市华星光电技术有限公司 一种驱动信号的调整方法
CN108257558A (zh) * 2018-01-31 2018-07-06 昆山国显光电有限公司 一种驱动补偿电路、方法及其显示装置
US10802564B2 (en) * 2018-10-09 2020-10-13 Quanta Computer Inc. Method and system for chassis voltage drop compensation
CN112951158A (zh) * 2021-02-18 2021-06-11 京东方科技集团股份有限公司 显示驱动方法、显示驱动装置及显示装置
CN113450735A (zh) * 2021-06-23 2021-09-28 Tcl华星光电技术有限公司 显示装置及其驱动方法
CN114360456A (zh) * 2022-01-20 2022-04-15 集璞(上海)科技有限公司 驱动电路、发光二极管驱动芯片、显示面板及电子设备
CN115862516A (zh) * 2022-12-23 2023-03-28 Tcl华星光电技术有限公司 显示装置及驱动器

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006106902A1 (ja) * 2005-04-01 2006-10-12 Sharp Kabushiki Kaisha 単純マトリクス型表示装置およびこれに用いられる駆動回路装置
CN1901019A (zh) * 2005-07-20 2007-01-24 中华映管股份有限公司 源极驱动装置以及显示面板驱动方法
US20120086694A1 (en) * 2010-10-08 2012-04-12 Au Optronics Corp. Pixel circuit and display panel with ir-drop compensation function
CN103927968A (zh) * 2013-06-18 2014-07-16 上海天马微电子有限公司 一种oled显示装置
KR101429909B1 (ko) * 2007-11-26 2014-08-14 엘지디스플레이 주식회사 액정 표시 장치
CN104809976A (zh) * 2015-05-21 2015-07-29 京东方科技集团股份有限公司 一种显示面板及显示装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006106902A1 (ja) * 2005-04-01 2006-10-12 Sharp Kabushiki Kaisha 単純マトリクス型表示装置およびこれに用いられる駆動回路装置
CN1901019A (zh) * 2005-07-20 2007-01-24 中华映管股份有限公司 源极驱动装置以及显示面板驱动方法
KR101429909B1 (ko) * 2007-11-26 2014-08-14 엘지디스플레이 주식회사 액정 표시 장치
US20120086694A1 (en) * 2010-10-08 2012-04-12 Au Optronics Corp. Pixel circuit and display panel with ir-drop compensation function
CN103927968A (zh) * 2013-06-18 2014-07-16 上海天马微电子有限公司 一种oled显示装置
CN104809976A (zh) * 2015-05-21 2015-07-29 京东方科技集团股份有限公司 一种显示面板及显示装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112201165A (zh) * 2020-10-23 2021-01-08 Tcl华星光电技术有限公司 显示装置以及电子设备

Also Published As

Publication number Publication date
CN105976783B (zh) 2018-03-20
US20180151133A1 (en) 2018-05-31
CN105976783A (zh) 2016-09-28
US10062339B2 (en) 2018-08-28

Similar Documents

Publication Publication Date Title
WO2018014375A1 (zh) 数据信号驱动方法以及驱动装置、液晶显示器
US7786960B2 (en) Liquid crystal display and driving method thereof
US11250812B2 (en) Luminance correction method and luminance correction device for display panel
WO2016070459A1 (zh) 液晶显示装置
US8773419B2 (en) Liquid crystal display
WO2018072249A1 (zh) 显示模组及液晶显示屏
CN110956936B (zh) 显示装置以及驱动其的方法
US9865209B2 (en) Liquid crystal display for operating pixels in a time-division manner
US20040257322A1 (en) Display driving device and method and liquid crystal display apparatus having the same
US9542898B2 (en) Driving method of a liquid crystal display panel, a liquid crystal display panel and a display device
JP2010079301A (ja) アレイ基板、液晶パネル、及び液晶ディスプレイ装置
US20150187288A1 (en) White Tracking Adjustment Method, Manufacturing Method of Liquid Crystal Display and Liquid Crystal Display
KR101987384B1 (ko) 표시장치
WO2020107505A1 (zh) 显示驱动方法及液晶显示装置
CN204065627U (zh) 一种基板和显示装置
CN107464538A (zh) 显示装置及其驱动方法
CN106531093A (zh) 液晶显示装置的驱动方法及液晶显示装置
WO2019127758A1 (zh) 液晶显示面板及其像素结构、液晶显示装置
JP4480821B2 (ja) 液晶表示装置
WO2020087645A1 (zh) 信号控制电路及包含信号控制电路的显示装置
US20100259516A1 (en) Image display apparatus comprising driving chip with variable length internal connection lines
CN107909976A (zh) 显示驱动方法及装置
KR102296768B1 (ko) 표시패널 및 표시패널의 검사 방법
CN111258132A (zh) 阵列基板及液晶显示面板
KR20180002967A (ko) 광 밸브 패널과 이를 이용한 액정표시장치

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 15309747

Country of ref document: US

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16909302

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16909302

Country of ref document: EP

Kind code of ref document: A1