CN109559687B - 显示面板 - Google Patents

显示面板 Download PDF

Info

Publication number
CN109559687B
CN109559687B CN201910092082.XA CN201910092082A CN109559687B CN 109559687 B CN109559687 B CN 109559687B CN 201910092082 A CN201910092082 A CN 201910092082A CN 109559687 B CN109559687 B CN 109559687B
Authority
CN
China
Prior art keywords
electrically coupled
test pad
pixel circuits
signal
terminal
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.)
Active
Application number
CN201910092082.XA
Other languages
English (en)
Other versions
CN109559687A (zh
Inventor
陈奕冏
张翔昇
郑贸薰
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.)
AU Optronics Corp
Original Assignee
AU Optronics Corp
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 AU Optronics Corp filed Critical AU Optronics Corp
Publication of CN109559687A publication Critical patent/CN109559687A/zh
Application granted granted Critical
Publication of CN109559687B publication Critical patent/CN109559687B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • G09G3/22—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]
    • G09G3/3275—Details of drivers for data electrodes
    • 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
    • G09G3/3258—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 voltage across the light-emitting element
    • 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
    • G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
    • 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]
    • 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
    • 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]
    • G09G3/3266—Details of drivers for scan electrodes
    • 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]
    • G09G3/3275—Details of drivers for data electrodes
    • G09G3/3291—Details of drivers for data electrodes in which the data driver supplies a variable data voltage for setting the current through, or the voltage across, the light-emitting elements
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C19/00—Digital stores in which the information is moved stepwise, e.g. shift registers
    • G11C19/28—Digital stores in which the information is moved stepwise, e.g. shift registers using semiconductor elements
    • 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
    • G09G2300/0404—Matrix technologies
    • G09G2300/0408—Integration of the drivers onto the display substrate
    • 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
    • G09G2300/0819—Several active elements per pixel in active matrix panels used for counteracting undesired variations, e.g. feedback or autozeroing
    • 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
    • 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
    • G09G2300/0861—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor with additional control of the display period without amending the charge stored in a pixel memory, e.g. by means of additional select electrodes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0243—Details of the generation of driving signals
    • G09G2310/0251—Precharge or discharge of pixel before applying new pixel voltage
    • 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
    • G09G2310/0262—The addressing of the pixel, in a display other than an active matrix LCD, involving the control of two or more scan electrodes or two or more data electrodes, e.g. pixel voltage dependent on signals of two data electrodes
    • 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
    • G09G2310/0286—Details of a shift registers arranged for use in a driving circuit
    • 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
    • G09G2320/04—Maintaining the quality of display appearance
    • G09G2320/043—Preventing or counteracting the effects of ageing
    • G09G2320/045—Compensation of drifts in the characteristics of light emitting or modulating elements
    • 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
    • G09G2320/04—Maintaining the quality of display appearance
    • G09G2320/043—Preventing or counteracting the effects of ageing
    • G09G2320/046—Dealing with screen burn-in prevention or compensation of the effects thereof
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/12—Test circuits or failure detection circuits included in a display system, as permanent part thereof

Abstract

一种显示面板具有主动区以及周边区。显示面板包含N条栅极线、N个移位暂存器、多个像素电路、开关电路以及多个测试垫。开关电路设置于周边区，且电性耦接至N个移位暂存器、N条栅极线及像素电路，用以接收控制信号以及使能信号并将N条栅极线的电压电平下拉至低电平。测试垫设置于周边区，且电性耦接至开关电路以及像素电路，用以提供控制信号、使能信号、数据信号以及参考信号。

Description

显示面板
技术领域
本公开涉及一种显示面板，特别涉及一种用于测试阶段烧机的显示面板。
背景技术
有机发光二极管(Organic light emitting diode，AMOLED)的显示面板，为了提升显示品质，在制造过程中通常需要经过烧机(Burn in)、组装测试(Cell test)以及芯片覆膜(IC bonding)等测试阶段。在目前的面板检测机制中，通常需要针对个别的有机发光二极管提供检测信号，并且在检测完毕后，会将测试引脚切断使得显示面板可以进行后续的显示功能。然而，现有的测试机制在与显示面板断开后，如果显示面板还需要后续的检测时，无法有效地再度通过检测机制重新进行检测，造成后续的不便。
发明内容
本发明提供一种显示面板，其主要是利用像素电路中有机发光二极管阳极端的重置电路架构，再结合额外的开关电路，在测试阶段时可以使能开关电路，利用电源供应器经由测试垫输入所需的电流，直接点亮有机发光二极管，不需要额外的Burn-in治具。在出厂后的显示阶段，禁能开关电路，仍然可以达到原本重置有机发光二极管阳极端的功能，达到节省制造成本并且有效监控显示面板元件的技术效果。
本公开的一实施方式是在提供一种显示面板，显示面板具有主动区以及周边区，周边区设置于主动区的一侧，显示面板包含N条栅极线、N个移位暂存器、多个像素电路、开关电路以及多个测试垫，其中N为正整数。N个移位暂存器设置于周边区，且电性耦接至N条栅极线，用以输出栅极信号。多个像素电路设置于主动区，且电性耦接至N条栅极线，用以接收栅极信号、数据信号以及参考信号。开关电路设置于周边区，且电性耦接至N个移位暂存器、N条栅极线及像素电路，用以接收控制信号以及使能(enable)信号并将N条栅极线的电压电平下拉至低电平。多个测试垫设置于周边区，且电性耦接至开关电路以及像素电路，用以提供控制信号、使能信号、数据信号以及参考信号。
本公开的显示面板主要是利用像素电路中有机发光二极管阳极端的重置电路架构，再结合额外的开关电路，在测试阶段时可以使能开关电路，利用电源供应器经由测试垫输入所需的电流，直接点亮有机发光二极管，不需要额外的Burn-in治具，达到节省制造成本并且有效监控显示面板元件的技术效果。
附图说明
为让公开的上述和其他目的、特征、优点与实施例能更明显易懂，说明书附图的说明如下：
图1为根据本公开一实施例的显示装置的示意图；
图2为根据本公开一实施例的像素电路的电路图；
图3为根据本公开另一实施例的显示面板的示意图；
图4为根据本公开另一实施例的显示面板的示意图；以及
图5为根据本公开另一实施例的显示面板的示意图。
附图标记说明：
100、300、400、500：显示装置
110：移位暂存器
120：像素电路
121：驱动电路
1211：写入电路
1212：补偿电路
1213：驱动晶体管
122：测试开关
130：开关电路
130_1～130_N：开关
140～147：测试垫
GL[1]～GL[N]：栅极线
Scan[1]～Scan[N]：栅极信号
AA：主动区
PA：周边区
CTS：像素控制信号
SW1：使能信号
SW2：控制信号
VS、VR、VG、VB、VOLED：数据信号
OVSS：参考信号
OVDD：电源高电压
Vref：参考低电压
Vdata：数据电压
S1～S3：扫描信号
T1～T8：晶体管
C1：电容
OLED：发光二极管
具体实施方式
以下将配合相关附图来说明本发明的实施例。在附图中，相同的标号表示相同或类似的元件或方法流程。
请参阅图1。图1为根据本公开一实施例的显示面板100的示意图。如图1所示出，显示面板100具有主动区AA以及周边区PA，周边区PA设置于主动区AA的一侧。显示面板100包含N条栅极线GL[1]～GL[N]、N个移位暂存器110、多个像素电路120、开关电路130以及多个测试垫140，其中N为正整数。N个移位暂存器110设置于周边区PA，且N个移位暂存器110电性耦接至N条栅极线GL[1]～GL[N]，N个移位暂存器110用以输出栅极信号Scan[1]～Scan[N]。像素电路120设置于主动区AA，且电性耦接至N条栅极线GL[1]～GL[N]，像素电路120用以接收栅极信号Scan[1]～Scan[N]、数据信号VS以及参考信号OVSS。
承上述，开关电路130设置于周边区PA，且电性耦接至N个移位暂存器110、N条栅极线GL[1]～GL[N]及像素电路120，开关电路130用以接收控制信号SW2以及使能信号SW1并将N条栅极线GL[1]～GL[N]的电压电平下拉至低电平。测试垫140设置于周边区PA，且电性耦接至开关电路130以及像素电路120，测试垫140用以提供控制信号SW2、使能信号SW1、数据信号VS以及参考信号OVSS。其中，数据信号VS包含第一数据信号VR、第二数据信号VG以及第三数据信号VB。
请继续参考图1，测试垫140包含第一测试垫141、第二测试垫142、第三测试垫143、第四测试垫144、第五测试垫145以及第六测试垫146。第一测试垫141电性耦接至像素电路120，用以提供参考信号OVSS至像素电路120。第二测试垫142电性耦接至开关电路130，用以提供控制信号SW2至开关电路140。第三测试垫143电性耦接至开关电路130，用以提供使能信号SW1至开关电路130。第四测试垫144电性耦接至像素电路120，用以提供第一数据信号VR至像素电路120。第五测试垫145电性耦接至像素电路120，用以提供第二数据信号VG至像素电路120。第六测试垫146电性耦接至像素电路120，用以提供第三数据信号VB至像素电路120。
进一步参考图2，图2为根据本公开一实施例的像素电路120的电路图。如图2所示出，像素电路120为8个晶体管1个电容(8T1C)的架构，此像素电路120为现有的像素电路架构。像素电路120包含驱动电路121、测试开关122以及发光二极管OLED。驱动电路121包含写入电路1211、补偿电路1212以及驱动晶体管1213。在本公开的像素电路120中，测试开关122会在测试阶段时作动，但在显示阶段时则是作为像素电路120的重置晶体管T7使用，用以重置发光二极管OLED的阳极端。
承上述，写入电路1211包含晶体管T1及T2以及电容C1，写入电路1211用以接收像素控制信号CTL、扫描信号S3、参考低电压Vref以及数据电压Vdata。补偿电路1212包含晶体管T3、T4、T5及T6，补偿电路1212用以接收像素控制信号CTL、扫描信号S1及S3以及参考低电压Vref并产生补偿电压。驱动晶体管1213包含晶体管T8，用以接收电源高电压OVDD，用以产生流经发光二极管OLED的驱动电流Id。重置晶体管T7用以接收扫描信号S2并重置驱动电路1213的电压电平。
请一并参阅图1及图2。发光二极管OLED的第一端电性耦接至驱动电路121，发光二极管OLED的第二端电性耦接至第一测试垫141。测试开关122的第一端电性耦接至发光二极管OLED的第一端，测试开关122的第二端电性耦接至第四测试垫144、第五测试垫145以及第六测试垫146的其中之一，测试开关122的控制端电性耦接至N条栅极线GL[1]～GL[N]的其中之一。
如图1所示，开关电路130包含N个开关130_1～130_N，N个开关彼此依序串联。举例而言，第1个开关130_1的第一端电性耦接至第1条栅极线GL[1]，第1个开关130_1的第二端电性耦接至第2条栅极线GL[2]，第1个开关130_1的控制端电性耦接至第二测试垫142。第2个开关130_2的第一端电性耦接至第2条栅极线GL[2]，第2个开关130_2的第二端电性耦接至第3条栅极线GL[3]，第2个开关130_2的控制端电性耦接至第二测试垫142。由上述可知，第1个开关130_1至第N-1个130_N-1电性耦接在当级栅极线以及下一级栅极线之间，除了第N个开关130_N以外，第N个开关130_N的第一端电性耦接至第N条栅极线GL[N]，第N个开关130_N的第二端电性耦接至第三测试垫143，第N个开关130_N的控制端电性耦接至第二测试垫142。
承上述，第二测试垫142输出的控制信号SW2具有第一低电压，因此会使能N个开关130_1～130_N，由于第N个开关130_N的第二端电性耦接至第三测试垫143，由第三测试垫143输入的使能信号SW1具有第二低电压，因此N个开关130_1～130_N可以将栅极信号Scan[1]～Scan[N]拉低至第二低电压，以使能像素电路120中的测试开关122，使得数据信号VS可以输入像素电路120，点亮发光二极管OLED。其中第一低电压小于第二低电压，并且第一低电压与第二低电压之间的电平差至少需要大于开关电路130中的开关的临界电压。
承上述，在一般的显示阶段，第二测试垫142输出的控制信号SW2会切换至高电压，因此会禁能N个开关130_1～130_N，使得开关电路130不会作动，像素电路120的测试开关122则转换成重置晶体管T7的操作，用以重置发光二极管OLED的阳极端，像素电路120可以根据源极驱动电路(图未示)的数据电压进行显示。
于此实施例中，开关电路130的N个晶体管可以利用N型的晶体管来实现，但本实施例并不以此为限，于本公开中也可以用P型晶体管，配合的使能电平切换为正电压来实现。
请再参考图1，于此实施例中，根据第四测试垫144、第五测试垫145以及第六测试垫146将像素电路120分成为三个群，第一群的像素电路120的测试开关122接电性耦接至第四测试垫144，并接收第一数据信号VR。第二群的像素电路120的测试开关122接电性耦接至第五测试垫145，并接收第二数据信号VG。第三群的像素电路120的测试开关122接电性耦接至第六测试垫146，并接收第三数据信号VB。
接着，请参考图3，图3为根据本公开另一实施例的显示面板300的示意图。如图3所示出，图3所示的实施例与图1所示的实施例差异在于，图3所示的开关电路130仅包含N-1个开关130_1～130_N-1，图3所示的开关电路130的操作方式与图1所示的开关电路130相同，当控制信号SW2使能开关电路130时，使能信号SW1用以将栅极信号Scan[1]～Scan[N]拉低至第二低电压，以使能像素电路120中的测试开关122。图3所示的开关电路130的第N-1个开关130_N-1的第一端电性耦接至第N-1条栅极线GL[N-1]，第N-1个开关130_N-1的第二端电性耦接至第N条栅极线GL[N]，第N-1个开关130_N-1的控制端电性耦接至第二测试垫142。于此实施例中，缺少第N个开关130_N的用处在于，可以通过第三试垫143测试第N条栅极线GL[N]的栅极信号Scan[N]，不需要再额外接出一个测试垫测试栅极信号。
请参阅图4。图4为根据本公开另一实施例的显示面板400的示意图。如图4所示出，图4所示的实施例与图1所示的实施例差异在于，图4所示的测试垫140包含第一测试垫141、第二测试垫142、第三测试垫143、第七测试垫147。第一测试垫141电性耦接至像素电路120，用以提供参考信号OVSS至像素电路120。第二测试垫142电性耦接至开关电路130，用以提供控制信号SW2至开关电路140。第三测试垫143电性耦接至开关电路130，用以提供使能信号SW1至开关电路130。第七测试垫147电性耦接至像素电路120，用以提供数据信号VOLED至像素电路120。图4所示的实施例与图1所示的实施例差异在于，图1所示的像素电路120分成三个群，并且分别电性耦接至第四测试垫144、第五测试垫145以及第六测试垫146。图4所示的像素电路120的测试开关122的第二端皆电性耦接至第七测试垫147，于图4所示的实施例中，像素电路120只会接收到第七测试垫147提供的数据信号VOLED，因此在测试时无法像图1所示的实施例可以同时输入三个不同的电压电平(第一数据信号VR、第二数据信号VG及第三数据信号VB)，点亮发光二极管OLED。
请参阅图5。图5为根据本公开另一实施例的显示面板500的示意图。如图5所示出，图5所示的实施例与图4所示的实施例差异在于，图5所示的开关电路130仅包含N-1个开关130_1～130_N-1，图5所示的开关电路130的操作方式与图3所示的开关电路130相同，在此不再赘述。
综上所述，本公开的显示面板主要是利用像素电路中有机发光二极管阳极端的重置电路架构，再结合额外的开关电路，在测试阶段时可以使能开关电路，利用电源供应器经由测试垫输入所需的电流，直接点亮有机发光二极管，不需要额外的Burn-in治具。在出厂后的显示阶段，禁能开关电路，仍然可以达到原本重置有机发光二极管阳极端的功能，达到节省制造成本并且有效监控显示面板元件的技术效果。
在说明书及权利要求中使用了某些词汇来指称特定的元件。然而，所属技术领域中技术人员应可理解，同样的元件可能会用不同的名词来称呼。说明书及权利要求并不以名称的差异做为区分元件的方式，而是以元件在功能上的差异来做为区分的基准。在说明书及权利要求所提及的“包含”为开放式的用语，故应解释成“包含但不限定于”。另外，“耦接”在此包含任何直接及间接的连接手段。因此，若文中描述第一元件耦接于第二元件，则代表第一元件可通过电性连接或无线传输、光学传输等信号连接方式而直接地连接于第二元件，或者通过其他元件或连接手段间接地电性或信号连接至该第二元件。
另外，除非说明书中特别指明，否则任何单数格的用语都同时包含复数格的涵义。
以上仅为本发明的优选实施例，凡依本发明权利要求所做的均等变化与修饰，皆应属本发明的涵盖范围。

Claims (7)

1.一种显示面板，该显示面板具有一主动区以及一周边区，该周边区设置于该主动区的一侧，该显示面板包含：
N条栅极线，其中N为正整数；
N个移位暂存器，设置于该周边区，且电性耦接至该N条栅极线，用以输出一栅极信号；
多个像素电路，设置于该主动区，且电性耦接至该N条栅极线，用以接收该栅极信号、一数据信号以及一参考信号；
一开关电路，设置于该周边区，且电性耦接至该N个移位暂存器、该N条栅极线及该些像素电路，用以接收一控制信号以及一使能信号并将该N条栅极线的电压电平下拉至低电平；以及
多个测试垫，设置于该周边区，且电性耦接至该开关电路以及该些像素电路，用以提供该控制信号、该使能信号、该数据信号以及该参考信号，其中还包含：
一第一测试垫，电性耦接至该些像素电路，用以提供该参考信号至该些像素电路；
一第二测试垫，电性耦接至该开关电路，用以提供该控制信号至该开关电路；
一第三测试垫，电性耦接至该开关电路，用以提供该使能信号至该开关电路；以及
一第四测试垫，电性耦接至该些像素电路，用以提供该数据信号至该些像素电路；
该开关电路包含N-1个开关，该N-1个开关彼此依序串联，其中第N-1个开关具有一第一端、一第二端以及一控制端，该第一端电性耦接至第N-1条栅极线，该第二端电性耦接至第N条栅极线，该控制端电性耦接至该第二测试垫；
该些像素电路包含一测试开关，具有一第三端、一第四端以及一控制端，该第三端电性耦接至该第一端，该第四端电性耦接至该第四测试垫，该控制端电性耦接至该N条栅极线的其中之一。
2.如权利要求1所述的显示面板，该些像素电路，还包含：
一驱动电路；以及
一发光二极管，具有一第一端以及一第二端，该第一端电性耦接至该驱动电路，该第二端电性耦接至该第一测试垫。
3.如权利要求1所述的显示面板，其中该开关电路，还包含：
第N个开关，具有一第一端、一第二端以及一控制端，该第一端电性耦接至第N条栅极线，该第二端电性耦接至该第三测试垫，该控制端电性耦接至该第二测试垫。
4.如权利要求1所述的显示面板，其中该数据信号包含一第一数据信号、一第二数据信号以及一第三数据信号。
5.如权利要求4所述的显示面板，其中该第四测试垫用以提供该第一数据信号至该些像素电路，该些测试垫，还包含：
一第五测试垫，电性耦接至该些像素电路，用以提供该第二数据信号至该些像素电路；以及
一第六测试垫，电性耦接至该些像素电路，用以提供该第三数据信号至该些像素电路。
6.如权利要求5所述的显示面板，该些像素电路，还包含：
一驱动电路；以及
一发光二极管，具有一第一端以及一第二端，该第一端电性耦接至该驱动电路，该第二端电性耦接至该第一测试垫。
7.如权利要求5所述的显示面板，其中该开关电路，还包含：
第N个开关，具有一第一端、一第二端以及一控制端，该第一端电性耦接至第N条栅极线，该第二端电性耦接至该第三测试垫，该控制端电性耦接至该第二测试垫。
CN201910092082.XA 2018-11-28 2019-01-30 显示面板 Active CN109559687B (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TW107142535A TWI683114B (zh) 2018-11-28 2018-11-28 顯示面板
TW107142535 2018-11-28

Publications (2)

Publication Number Publication Date
CN109559687A CN109559687A (zh) 2019-04-02
CN109559687B true CN109559687B (zh) 2020-10-16

Family

ID=65873940

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910092082.XA Active CN109559687B (zh) 2018-11-28 2019-01-30 显示面板

Country Status (3)

Country Link
US (1) US20200168140A1 (zh)
CN (1) CN109559687B (zh)
TW (1) TWI683114B (zh)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110264951B (zh) * 2019-07-22 2021-01-22 京东方科技集团股份有限公司 一种有机电致发光显示面板、显示装置和检测方法
CN111354293B (zh) * 2020-03-30 2022-10-04 武汉天马微电子有限公司 一种显示面板、显示装置以及驱动方法
CN112599060A (zh) * 2020-12-31 2021-04-02 厦门天马微电子有限公司 Vt测试电路、系统、方法、显示面板及显示装置
CN113570990B (zh) * 2021-07-30 2024-02-09 北京京东方光电科技有限公司 信号检测装置、方法及显示面板
FR3131425B1 (fr) * 2021-12-28 2024-02-16 Aledia Pixel d'affichage à diodes électroluminescentes pour écran d'affichage

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI309813B (en) * 2005-12-23 2009-05-11 Au Optronics Corp Display device and pixel testing method thereof
CN100523824C (zh) * 2006-03-15 2009-08-05 中华映管股份有限公司 检测线路布局以及液晶显示面板的制造方法
KR20080035086A (ko) * 2006-10-18 2008-04-23 삼성전자주식회사 액정 표시 장치
JP5428299B2 (ja) * 2008-03-18 2014-02-26 セイコーエプソン株式会社 電気光学装置及び電子機器
CN101281738B (zh) * 2008-04-15 2012-12-05 友达光电股份有限公司 一种驱动模块及减缓显示器的驱动模块老化的方法
CN101303462A (zh) * 2008-07-04 2008-11-12 友达光电股份有限公司 液晶显示面板的检测电路与方法
KR20100009219A (ko) * 2008-07-18 2010-01-27 삼성모바일디스플레이주식회사 화소 및 이를 이용한 유기전계발광 표시장치
KR101618913B1 (ko) * 2008-11-28 2016-05-09 가부시키가이샤 한도오따이 에네루기 켄큐쇼 표시 장치 및 표시 장치를 포함하는 전자 장치
KR101305379B1 (ko) * 2009-07-21 2013-09-06 엘지디스플레이 주식회사 씨오지 타입 액정표시장치 및 이의 검사방법
US8325127B2 (en) * 2010-06-25 2012-12-04 Au Optronics Corporation Shift register and architecture of same on a display panel
CN101950112B (zh) * 2010-09-06 2012-02-08 友达光电股份有限公司 液晶显示面板及其制造方法
WO2012157186A1 (en) * 2011-05-13 2012-11-22 Semiconductor Energy Laboratory Co., Ltd. Display device
CN102692740B (zh) * 2012-06-05 2015-07-01 深圳市华星光电技术有限公司 一种液晶显示装置及其阵列基板、制造方法
CN102789076B (zh) * 2012-08-01 2016-02-03 深圳市华星光电技术有限公司 一种检测线路及液晶显示面板的制作方法
US9322869B2 (en) * 2014-01-03 2016-04-26 Pixtronix, Inc. Display apparatus including dummy display element for TFT testing
JP2015165226A (ja) * 2014-02-07 2015-09-17 株式会社半導体エネルギー研究所 装置
EP3113226B1 (en) * 2014-02-25 2019-05-08 LG Display Co., Ltd. Display backplane and method for manufacturing same
TWI599999B (zh) * 2015-07-16 2017-09-21 友達光電股份有限公司 畫素電路
KR102645930B1 (ko) * 2016-09-29 2024-03-12 엘지디스플레이 주식회사 표시장치
CN107942547B (zh) * 2017-11-21 2020-06-30 深圳市华星光电半导体显示技术有限公司 点灯回点治具及其检测面板的方法

Also Published As

Publication number Publication date
US20200168140A1 (en) 2020-05-28
TWI683114B (zh) 2020-01-21
CN109559687A (zh) 2019-04-02
TW202020466A (zh) 2020-06-01

Similar Documents

Publication Publication Date Title
CN109559687B (zh) 显示面板
CN106910463B (zh) 一种amoled驱动电路及显示装置
US9799270B2 (en) Pixel circuit, display panel and display device
WO2018152896A1 (zh) Oled像素驱动电路及像素驱动方法
US10649509B2 (en) Display device capable of detecting whether a power cable is abnormally connected
US10490131B2 (en) Driving control circuit for driving pixel driving circuit and display apparatus thereof
US11081046B2 (en) Driving chip and display device having the same
CN113112961A (zh) 显示驱动电路及显示驱动电路的驱动方法
CN110570820A (zh) Amoled显示装置及其驱动方法
US20200168154A1 (en) Sensing circuit for OLED driver and OLED driver using the same
US8199076B2 (en) Pixel circuit
CN109523950B (zh) 一种oled显示面板驱动电路及驱动方法
US9922599B2 (en) Devices and methods for applying data voltage signal, display panels and display devices
CN109509431A (zh) 像素电路及其驱动方法、显示装置
CN114093301B (zh) 显示装置、像素驱动电路及其驱动方法
US20230335067A1 (en) Source Driver Integrated Circuit and Display Driving Device
CN110349538B (zh) 像素驱动电路及显示面板
CN114724505B (zh) 像素电路、显示基板和显示装置
CN108230974B (zh) 一种发光器件缺陷检测电路及方法、显示驱动装置、显示装置及其检测方法
US20220293041A1 (en) Display system capable of eliminating cross-channel coupling problem, and driving device thereof
CN110070831B (zh) 像素驱动电路及显示面板
CN109979395B (zh) 像素驱动电路及显示面板
CN110070830B (zh) 像素驱动电路及显示面板
US11961481B2 (en) Integrated circuit for driving pixel of display panel, pixel driving device, and pixel defect detecting method
CN113299243B (zh) 一种像素电路及其驱动方法、显示装置

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant