CN105118448A - 显示面板及其驱动方法 - Google Patents

显示面板及其驱动方法 Download PDF

Info

Publication number
CN105118448A
CN105118448A CN201510377672.9A CN201510377672A CN105118448A CN 105118448 A CN105118448 A CN 105118448A CN 201510377672 A CN201510377672 A CN 201510377672A CN 105118448 A CN105118448 A CN 105118448A
Authority
CN
China
Prior art keywords
pixel electrode
display panel
tft
data line
pixel
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN201510377672.9A
Other languages
English (en)
Inventor
徐京
黄泰钧
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TCL China Star Optoelectronics Technology Co Ltd
Original Assignee
Shenzhen China Star Optoelectronics Technology Co Ltd
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 Shenzhen China Star Optoelectronics Technology Co Ltd filed Critical Shenzhen China Star Optoelectronics Technology Co Ltd
Priority to CN201510377672.9A priority Critical patent/CN105118448A/zh
Priority to US14/768,694 priority patent/US10403217B2/en
Priority to PCT/CN2015/083740 priority patent/WO2017000321A1/zh
Publication of CN105118448A publication Critical patent/CN105118448A/zh
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3607—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 for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
    • 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
    • G09G3/22—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 using controlled light sources
    • G09G3/30—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 using controlled light sources using electroluminescent panels
    • G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3225—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
    • G09G3/3233—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL 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
    • G02F1/00—Devices 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
    • G02F1/01—Devices 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 
    • G02F1/13—Devices 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/13624—Active matrix addressed cells having more than one switching element per pixel
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL 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
    • G02F1/00—Devices 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
    • G02F1/01—Devices 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 
    • G02F1/13—Devices 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/136286—Wiring, e.g. gate line, drain line
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL 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
    • G02F1/00—Devices 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
    • G02F1/01—Devices 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 
    • G02F1/13—Devices 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device
    • 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
    • G09G3/3406—Control of illumination source
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3674—Details of drivers for scan electrodes
    • G09G3/3677—Details of drivers for scan electrodes suitable for active matrices only
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3685—Details of drivers for data electrodes
    • G09G3/3688—Details of drivers for data electrodes suitable for active matrices only
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/12—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode
    • G02F2201/123—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode pixel
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/52—RGB geometrical arrangements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0439—Pixel structures
    • G09G2300/0452—Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
    • G09G2300/0809—Several active elements per pixel 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
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
    • G09G2300/0809—Several active elements per pixel in active matrix panels
    • G09G2300/0842—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor
    • 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
    • G09G2310/0235—Field-sequential colour 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
    • G09G2310/00—Command of the display device
    • G09G2310/08—Details of timing specific for flat panels, other than clock recovery
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0673—Adjustment of display parameters for control of gamma adjustment, e.g. selecting another gamma curve

Abstract

本发明提供一种显示面板及其驱动方法，根据允许透过的光的颜色将显示面板的像素电极划分为多组，即每组像素电极允许相同颜色的光透过，并在一帧画面的显示过程中，由数据驱动器对每组像素电极施加独立的Gamma电压，由栅极驱动器依次驱动与一组像素电极连接的栅极线之后，再依次驱动与下一组像素电极连接的栅极线，从而能够独立调整施加至不同颜色的像素的Gamma电压。

Description

显示面板及其驱动方法
技术领域
本发明涉及显示技术领域，具体涉及显示面板的驱动技术领域，尤其涉及一种显示面板及其驱动方法。
背景技术
当前，显示面板进行画面显示的原理为：栅极驱动器依次驱动各条栅极线以依次开启与各条栅极线连接的像素电极的TFT(ThinFilmTransistor，薄膜晶体管)，数据驱动器驱动数据线以将灰阶电压施加至与数据线连接的像素电极，显示面板根据接收到的灰阶电压控制液晶分子发生偏转，从而允许不同颜色的光透过以显示画面。由于不同颜色的光的波长不同导致其在显示面板中的穿透率不同，因此需要调整各种颜色的光对应的Gamma曲线(伽马曲线，即灰阶电压-穿透率曲线)，从而确保显示画面的白平衡(WhiteTracking)。
现有方案普遍利用时序控制器(TimingControlIC,TCON)对不同颜色的光对应的像素电极施加Gamma电压，从而调整不同颜色的光对应的Gamma曲线，例如，对于每一像素区域均包括一个R(Red,红)像素电极、一个G(Green,绿)像素电极以及一个B(Blue,蓝)像素电极的显示面板，结合图1所示的栅极驱动器依次驱动各条栅极线的时序图，可知数据驱动器通过一条数据线将Gamma电压施加至一个像素区域的三个像素电极之后，才能对通过下一条数据线对下一个像素区域的三个像素电极施加Gamma电压。由此可知，现有技术无法对相同颜色的所有像素电极独立施加Gamma电压，无法独立调整施加至不同颜色的像素电极的Gamma电压，当然也就不能很好的调整各种颜色的光对应的Gamma曲线，显示面板的显示品质并不十分理想。
发明内容
有鉴于此，本发明实施例提供一种显示面板及其驱动方法，能够独立调整施加至不同颜色的像素的Gamma电压。
本发明一实施例提供一种显示面板，包括时序控制器、多组像素电极、用于驱动栅极线的栅极驱动器以及用于驱动数据线的数据驱动器，每组像素电极允许相同颜色的光透过，在一帧画面的显示过程中，数据驱动器在时序控制器的控制下对每组像素电极施加独立的Gamma电压，栅极驱动器在时序控制器的控制下依次驱动与一组像素电极连接的栅极线之后，再依次驱动与下一组像素电极连接的栅极线。
其中，显示面板包括分别允许红、绿、蓝三种颜色的光透过的三组像素电极，且显示面板的每一像素区域包括一个允许红色光透过的像素电极、一个允许绿色光透过的像素电极和一个允许蓝色光透过的像素电极，每一像素区域对应连接一条栅极线和一条数据线。
其中，所述显示面板还包括位于每一像素区域的三个TFT，TFT的栅极连接对应的栅极线，TFT的漏极连接对应的像素电极，三个TFT的源极选择性连接数据线，其中三个TFT中一个的源极连接数据线时另外两个的源极断开与数据线的连接。
其中，显示面板进一步包括设置于每一TFT和数据线之间的开关管，开关管在施加于像素区域的使能信号的控制下选择性导通，以此将与TFT的源极连接的像素电极连接至对应的数据线。
其中，时序控制器通过I2C总线或串行外设接口SPI控制所述数据驱动器施加所述Gamma电压。
本发明另一实施例提供一种显示面板的驱动方法，所述显示面板包括时序控制器、多个像素电极、用于驱动栅极线的栅极驱动器以及用于驱动数据线的数据驱动器，所述驱动方法包括：将多个像素电极划分为多组，每组像素电极允许相同颜色的光透过；在一帧画面的显示过程中，数据驱动器在时序控制器的控制下对每组像素电极施加独立的Gamma电压，栅极驱动器在时序控制器的控制下依次驱动与一组像素电极连接的栅极线之后，再依次驱动与下一组像素电极连接的栅极线。
其中，将多个像素电极划分为允许红、绿、蓝三种颜色的光透过的三组，且显示面板的每一像素区域包括一个允许红色光透过的像素电极、一个允许绿色光透过的像素电极和一个允许蓝色光透过的像素电极，每一像素区域对应连接一条栅极线和一条数据线。
其中，所述显示面板还包括位于每一像素区域的三个TFT，TFT的栅极连接对应的栅极线，TFT的漏极连接对应的像素电极，三个TFT的源极选择性连接数据线，其中三个TFT中一个的源极连接数据线时另外两个的源极断开与数据线的连接。
其中，在每一TFT和数据线之间设置开关管，开关管在施加于像素区域的使能信号的控制下选择性导通，以此将与TFT的源极连接的像素电极连接至对应的数据线。
其中，时序控制器通过I2C总线或串行外设接口SPI控制所述数据驱动器施加所述Gamma电压。
本发明实施例的显示面板及其驱动方法，根据允许透过的光的颜色将显示面板的像素电极划分为多组，即每组像素电极允许相同颜色的光透过，并在一帧画面的显示过程中，由数据驱动器对每组像素电极施加独立的Gamma电压，由栅极驱动器依次驱动与一组像素电极连接的栅极线之后，再依次驱动与下一组像素电极连接的栅极线，从而能够独立调整施加至不同颜色的像素的Gamma电压。
附图说明
图1是现有技术的栅极驱动器驱动栅极线的时序图；
图2是本发明的显示面板一实施例的像素结构示意图；
图3是图2所示一个像素区域的电路结构示意图；
图4是本发明的显示面板的各个信号的时序图；
图5是本发明的显示面板一实施例的驱动电路示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明所提供的示例性的实施例的技术方案进行清楚、完整地描述。
图2是本发明一实施例的显示面板的像素结构示意图。如图2所示，显示面板10包括栅极驱动器11、数据驱动器12、间隔排列的多条栅极线G1,G2,…,Gn以及与栅极线绝缘交叉的数据线D1,D2,…,Dm，其中m和n均为正整数，多条栅极线G1,G2,…,Gn和多条数据线D1,D2,…,Dm定义出显示面板10的多个阵列排布的像素区域13。
每一像素区域13包括分别允许红、绿、蓝三种颜色的光透过的三个像素电极R、G、B，三个像素电极R、G、B共同连接一条栅极线和一条数据线，且每次连接时三个像素电极R、G、B中仅有一个与对应的数据线连接，例如像素电极R与数据线D1连接时像素电极G、B与数据线D1断开，所述“连接”为电连接。
本实施例可以通过如图3所示的电路结构实现上述连接及断开。如图3所示，像素区域13的三个像素电极R、G、B和栅极线G1之间均设置有一个薄膜晶体管(即T1、T2、T3)，其中，薄膜晶体管T1的栅极g1连接栅极线G1，薄膜晶体管T1的漏极d1连接像素电极R，薄膜晶体管T2的栅极g2连接栅极线G1，薄膜晶体管T2的漏极d2连接像素电极G，薄膜晶体管T3的栅极g3连接栅极线G1，薄膜晶体管T3的漏极d3连接像素电极B，薄膜晶体管T1、T2、T3的源极s1、s2、s3选择性连接数据线D1，具体地，像素区域13的三个颜色的像素电极R、G、B和数据线D1之间还分别设置有一个开关管(即K1、K2、K3)，每一开关管设置于薄膜晶体管的源极与数据线D1之间，通过开关管的导通与断开实现薄膜晶体管T1、T2、T3的源极s1、s2、s3选择性连接数据线D1，其中当开关管K1、K2、K3中的一个导通时另外两个断开。
各个开关管可以为P型MOS管且在使能信号的控制下实现导通与断开，具体地，开关管K1的栅极g用于接收使能信号，开关管K1的漏极d与数据线D1连接，开关管K1的源极s与薄膜晶体管T1的源极s1连接，开关管K2的栅极g用于接收使能信号，开关管K2的漏极d与数据线D1连接，开关管K2的源极s与薄膜晶体管T2的源极s2连接，开关管K3的栅极g用于接收使能信号，开关管K3的漏极d与数据线D1连接，开关管K3的源极s与薄膜晶体管T3的源极s3连接。
图3所示电路实质上是一种Demux电路，所述使能信号实质上为一种Demux信号，该电路还可以包括电容等其他元件，各个开关管也可以为其他类型而非图中所示的P型MOS管。
图4是本发明的显示面板的各个信号的时序图，图5是本发明的显示面板一实施例的驱动电路示意图。结合图4和图5所示，时序控制器14与数据驱动器12、栅极驱动器11构成显示面板10的驱动电路，其中时序控制器14用于控制显示面板10的各个信号的输出，且通过LVDS接口(Low-VoltageDifferentialSignaling，低电压差分信号接口)或者Mini-LVDS接口与数据驱动器12连接。具体而言，时序控制器14预先将数据驱动器12所要施加于像素电极R、G、B的Gamma电压的Gammacode(程序代码)写入到EEPROM(ElectricallyErasableProgrammableRead-OnlyMemory，电可擦可编程只读存储器)中，驱动电路上电后时序控制器14读取Gammacode并将其存储于时序控制器14的RAM(RandomAccessMemory，随机存储器)中。在画面显示时，时序控制器14将对应颜色的GammaCode通过I2C总线(Inter－IntegratedCircuit，两行式串行总线)或者SPI(SerialPeripheralInterface，串行外设接口)传到数据驱动器12的GammaIC(可编程伽马电压产生芯片)中，从而产生行方向上各像素电极所要施加的Gamma电压，其中GammaIC可以设置于数据驱动器12中并作为数据驱动器12的一部分，也可以单独设置。
在时序控制器14的控制下，栅极驱动器11依次为各条栅极线提供栅极驱动信号，以启动每一条栅极线对应的薄膜晶体管，数据驱动器12向多条数据线D1,D2,…,Dm提供Gamma电压，以使Gamma电压经启动的薄膜晶体管施加至像素电极R、G、B。
时序控制器14将每一帧画面的时段划分为三个时段t1、t2、t3，例如一帧画面的时间为1/60秒，则t1＝t2＝t3＝(1/60)/3≈5.5毫秒，即时序控制器14向GammaIC传输数据的周期为5.5毫秒。在第一时段t1对所有像素区域13的像素电极R施加Gamma电压，在第二时段t2对所有像素区域13的像素电极G施加Gamma电压，在第三时段t3对所有像素区域13的像素电极B施加Gamma电压。具体而言，在第一时段t1，时序控制器14输出低电平的使能信号En-R且高电平的失能信号En-G、En-B，以使开关管K1导通且开关管K2、K3断开，栅极驱动器11依次开启位于各个像素区域13中的薄膜晶体管T1并为各像素电极R充电，数据驱动器12对像素电极R施加Gamma电压；在第二时段t2，时序控制器14输出低电平的使能信号En-G且高电平的失能信号En-R、En-B，以使开关管K2导通且开关管K1、K3断开，栅极驱动器11依次开启位于各个像素区域13中的薄膜晶体管T2并为各像素电极G充电，数据驱动器12对像素电极G施加Gamma电压；在第三时段t3，时序控制器14输出低电平的使能信号En-B且高电平的失能信号En-R、En-G，以使开关管K3导通且开关管K1、K2断开，栅极驱动器11依次开启位于各个像素区域13中的薄膜晶体管T3并为各像素电极B充电，数据驱动器12对像素电极B施加Gamma电压。
上述三个开关管K1、K2、K3的导通与断开(即接收的是使能信号还是失能信号)取决于每一开关管的类型以及对应接收的电平高低，例如，图3所示的三个开关管K1、K2、K3为P型MOS管，则每一开关管在施加高电平时断开且低电平时导通，若三个开关管K1、K2、K3为N型MOS管，则每一开关管在施加低电平时断开且高电平时导通。
相比较于图1所示的现有技术的时序，本实施例中每一条栅极线每次被驱动的时间为现有技术的三分之一，但被驱动的次数为现有技术的三倍。结合前述可知，本实施例由于可以在同一时段对相同颜色的所有像素电极施加电压Gamma电压，因此能够独立调整施加至不同颜色的像素的Gamma电压，提升显示面板10的显示品质。
应该理解到，由于像素的颜色并不仅限于红、绿、蓝三种颜色，例如显示面板10中可增设透明像素(即白色)以增强显示画面的亮度，此时显示面板10应包括四组像素电极。
综上所述，本发明的目的是根据允许透过的光的颜色将显示面板的像素电极划分为多组，即每组像素电极允许相同颜色的光透过，并在一帧画面的显示过程中，由数据驱动器对每组像素电极施加独立的Gamma电压，由栅极驱动器依次驱动与一组像素电极连接的栅极线之后，再依次驱动与下一组像素电极连接的栅极线，从而能够独立调整施加至不同颜色的像素的Gamma电压。
在此基础上，以上所述仅为本发明的实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，例如各实施例之间技术特征的相互结合，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (10)

1.一种显示面板，其特征在于，所述显示面板包括时序控制器、多组像素电极、用于驱动栅极线的栅极驱动器以及用于驱动数据线的数据驱动器，其中，每组所述像素电极允许相同颜色的光透过，在一帧画面的显示过程中，所述数据驱动器在所述时序控制器的控制下对每组所述像素电极施加独立的Gamma电压，所述栅极驱动器在所述时序控制器的控制下依次驱动与一组所述像素电极连接的所述栅极线之后，再依次驱动与下一组所述像素电极连接的所述栅极线。
2.根据权利要求1所述的显示面板，其特征在于，所述显示面板包括分别允许红、绿、蓝三种颜色的光透过的三组所述像素电极，且所述显示面板的每一像素区域包括一个允许红色光透过的像素电极、一个允许绿色光透过的像素电极和一个允许蓝色光透过的像素电极，每一所述像素区域对应连接一条所述栅极线和一条所述数据线。
3.根据权利要求2所述的显示面板，其特征在于，所述显示面板还包括位于每一所述像素区域的三个TFT，所述TFT的栅极连接对应的所述栅极线，所述TFT的漏极连接对应的所述像素电极，所述三个TFT的源极选择性连接所述数据线，其中所述三个TFT中一个的源极连接所述数据线时另外两个的源极断开与所述数据线的连接。
4.根据权利要求3所述的显示面板，其特征在于，所述显示面板进一步包括设置于每一所述TFT和所述数据线之间的开关管，所述开关管在施加于所述像素区域的使能信号的控制下选择性导通，以此将与所述TFT的源极连接的所述像素电极连接至对应的所述数据线。
5.根据权利要求1所述的显示面板，其特征在于，所述时序控制器通过I2C总线或串行外设接口SPI控制所述数据驱动器施加所述Gamma电压。
6.一种显示面板的驱动方法，所述显示面板包括时序控制器、多个像素电极、用于驱动栅极线的栅极驱动器以及用于驱动数据线的数据驱动器，其特征在于，所述驱动方法包括：
将所述多个像素电极划分为多组，其中每组所述像素电极允许相同颜色的光透过；
在一帧画面的显示过程中，所述数据驱动器在所述时序控制器的控制下对每组所述像素电极施加独立的Gamma电压，所述栅极驱动器在所述时序控制器的控制下依次驱动与一组所述像素电极连接的所述栅极线之后，再依次驱动与下一组所述像素电极连接的所述栅极线。
7.根据权利要求6所述的驱动方法，其特征在于，将所述多个像素电极划分为允许红、绿、蓝三种颜色的光透过的三组，且所述显示面板的每一像素区域包括一个允许红色光透过的像素电极、一个允许绿色光透过的像素电极和一个允许蓝色光透过的像素电极，每一所述像素区域对应连接一条所述栅极线和一条所述数据线。
8.根据权利要求7所述的驱动方法，其特征在于，所述显示面板还包括位于每一所述像素区域的三个TFT，所述TFT的栅极连接对应的所述栅极线，所述TFT的漏极连接对应的所述像素电极，所述三个TFT的源极选择性连接所述数据线，其中所述三个TFT中一个的源极连接所述数据线时另外两个的源极断开与所述数据线的连接。
9.根据权利要求8所述的驱动方法，其特征在于，在每一所述TFT和所述数据线之间设置开关管，所述开关管在施加于所述像素区域的使能信号的控制下选择性导通，以此将与所述TFT的源极连接的所述像素电极连接至对应的所述数据线。
10.根据权利要求6所述的驱动方法，其特征在于，所述时序控制器通过I2C总线或串行外设接口SPI控制所述数据驱动器施加所述Gamma电压。
CN201510377672.9A 2015-07-01 2015-07-01 显示面板及其驱动方法 Pending CN105118448A (zh)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201510377672.9A CN105118448A (zh) 2015-07-01 2015-07-01 显示面板及其驱动方法
US14/768,694 US10403217B2 (en) 2015-07-01 2015-07-10 Display panel and liquid the driving method thereof
PCT/CN2015/083740 WO2017000321A1 (zh) 2015-07-01 2015-07-10 显示面板及其驱动方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510377672.9A CN105118448A (zh) 2015-07-01 2015-07-01 显示面板及其驱动方法

Publications (1)

Publication Number Publication Date
CN105118448A true CN105118448A (zh) 2015-12-02

Family

ID=54666411

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510377672.9A Pending CN105118448A (zh) 2015-07-01 2015-07-01 显示面板及其驱动方法

Country Status (3)

Country Link
US (1) US10403217B2 (zh)
CN (1) CN105118448A (zh)
WO (1) WO2017000321A1 (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106652946A (zh) * 2016-12-26 2017-05-10 深圳市华星光电技术有限公司 一种液晶显示器及其驱动方法
CN108806626A (zh) * 2018-05-31 2018-11-13 深圳市华星光电技术有限公司 显示器驱动系统
CN112652273A (zh) * 2019-10-11 2021-04-13 深圳Tcl数字技术有限公司 一种led背光驱动电路、驱动装置及驱动方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10573216B2 (en) * 2017-07-27 2020-02-25 Wuhan China Star Optoelectronics Technology Co., Ltd. Driving control method by sequentially turning on all of the first, all of the second, all of the third and all of the white color sub-pixels for display panel

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040125422A1 (en) * 2002-10-08 2004-07-01 Bo-Wen Wang Data driver with gamma correction
US20100164856A1 (en) * 2008-12-31 2010-07-01 Jhen-Shen Liao Field sequential display with overlapped multi-scan driving and method thereof
US7808465B2 (en) * 2006-07-25 2010-10-05 Wisepal Technologies, Inc. Gamma voltage generator, source driver, and display device utilizing the same
US7920116B2 (en) * 2006-06-23 2011-04-05 Samsung Electronics Co., Ltd. Method and circuit of selectively generating gray-scale voltage
CN102087826A (zh) * 2011-03-02 2011-06-08 旭曜科技股份有限公司 场序式平面显示器的驱动方法
KR101472063B1 (ko) * 2008-04-10 2014-12-15 삼성디스플레이 주식회사 표시 패널을 구동하기 위한 데이터 생성 방법과, 이를수행하기 위한 데이터 구동회로 및 이 데이터 구동회로를포함하는 표시 장치

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4986334B2 (ja) 2001-05-07 2012-07-25 ルネサスエレクトロニクス株式会社 液晶表示装置及びその駆動方法
KR100965580B1 (ko) * 2003-08-21 2010-06-23 엘지디스플레이 주식회사 액정표시장치와 그의 구동방법
US20060269357A1 (en) * 2005-05-31 2006-11-30 United Technologies Corporation Rotating shaft coupling assembly
KR101201317B1 (ko) * 2005-12-08 2012-11-14 엘지디스플레이 주식회사 액정 표시장치의 구동장치 및 구동방법
KR101231840B1 (ko) * 2005-12-28 2013-02-08 엘지디스플레이 주식회사 액정 표시 장치 및 그의 구동 방법
KR101307414B1 (ko) * 2007-04-27 2013-09-12 삼성디스플레이 주식회사 게이트 구동 회로 및 이를 포함하는 액정 표시 장치
CN101349820B (zh) 2007-07-20 2012-01-11 胜华科技股份有限公司 数据驱动器及应用其的液晶显示器
KR101469480B1 (ko) * 2012-04-05 2014-12-12 엘지디스플레이 주식회사 표시장치 및 이의 구동방법
CN103854616A (zh) * 2012-12-07 2014-06-11 群康科技(深圳)有限公司 显示面板的串音补偿方法及其显示装置
US10170045B2 (en) * 2013-07-01 2019-01-01 Sharp Kabushiki Kaisha Display device and driving method of the same
US9386338B2 (en) * 2014-07-29 2016-07-05 Verizon Patent And Licensing Inc. Automatic channel selection and control

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040125422A1 (en) * 2002-10-08 2004-07-01 Bo-Wen Wang Data driver with gamma correction
US7920116B2 (en) * 2006-06-23 2011-04-05 Samsung Electronics Co., Ltd. Method and circuit of selectively generating gray-scale voltage
US7808465B2 (en) * 2006-07-25 2010-10-05 Wisepal Technologies, Inc. Gamma voltage generator, source driver, and display device utilizing the same
KR101472063B1 (ko) * 2008-04-10 2014-12-15 삼성디스플레이 주식회사 표시 패널을 구동하기 위한 데이터 생성 방법과, 이를수행하기 위한 데이터 구동회로 및 이 데이터 구동회로를포함하는 표시 장치
US20100164856A1 (en) * 2008-12-31 2010-07-01 Jhen-Shen Liao Field sequential display with overlapped multi-scan driving and method thereof
CN102087826A (zh) * 2011-03-02 2011-06-08 旭曜科技股份有限公司 场序式平面显示器的驱动方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106652946A (zh) * 2016-12-26 2017-05-10 深圳市华星光电技术有限公司 一种液晶显示器及其驱动方法
CN108806626A (zh) * 2018-05-31 2018-11-13 深圳市华星光电技术有限公司 显示器驱动系统
CN112652273A (zh) * 2019-10-11 2021-04-13 深圳Tcl数字技术有限公司 一种led背光驱动电路、驱动装置及驱动方法

Also Published As

Publication number Publication date
WO2017000321A1 (zh) 2017-01-05
US10403217B2 (en) 2019-09-03
US20170140716A1 (en) 2017-05-18

Similar Documents

Publication Publication Date Title
CN106652951B (zh) 阵列基板及液晶显示器
EP2819118B1 (en) Pixel structure and display panel
US10510315B2 (en) Display panel, driving method thereof and display device
US9646552B2 (en) Display device with a source signal generating circuit
CN105185326A (zh) 一种液晶显示面板及其驱动电路
CN108615495B (zh) 一种多路复用型驱动电路以及驱动方法、显示设备
US10510306B2 (en) Display panel and display apparatus having the same
US10192510B2 (en) Source driving module generating two groups of gamma voltages and liquid crystal display device using same
KR20160017674A (ko) 표시 장치
US20070070024A1 (en) Liquid crystal display device
CN105304010A (zh) 显示面板
CN106502019B (zh) 阵列基板、显示装置及其驱动方法
CN102750919A (zh) 一种显示面板及其驱动方法、显示装置
CN101872582A (zh) 液晶显示装置及其驱动方法
US20150294611A1 (en) Displaying method and driving device of lcd panel and lcd device
CN104505041A (zh) 像素结构的驱动方法
US20160104444A1 (en) Liquid crystal display apparatus and method of driving the liquid cyrstal display apparatus
CN105118448A (zh) 显示面板及其驱动方法
KR20160066654A (ko) 표시 장치
CN109509419A (zh) 显示面板和显示装置
CN106297690A (zh) 伽马参考电压产生器、产生方法以及液晶显示装置
CN101663704A (zh) 显示装置及其驱动方法
KR20170047787A (ko) 백라이트 유닛 및 그것을 포함하는 표시 장치
CN101604503B (zh) 显示装置及显示驱动方法
CN104809999A (zh) 显示面板及其驱动方法

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20151202

RJ01 Rejection of invention patent application after publication