CN111028774B - 显示面板及显示终端 - Google Patents

显示面板及显示终端 Download PDF

Info

Publication number
CN111028774B
CN111028774B CN201911291770.5A CN201911291770A CN111028774B CN 111028774 B CN111028774 B CN 111028774B CN 201911291770 A CN201911291770 A CN 201911291770A CN 111028774 B CN111028774 B CN 111028774B
Authority
CN
China
Prior art keywords
light
sub
control signal
node
emitting control
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
CN201911291770.5A
Other languages
English (en)
Other versions
CN111028774A (zh
Inventor
张留旗
韩佰祥
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.)
Shenzhen China Star Optoelectronics Semiconductor Display Technology Co Ltd
Original Assignee
Shenzhen China Star Optoelectronics Semiconductor Display 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 Semiconductor Display Technology Co Ltd filed Critical Shenzhen China Star Optoelectronics Semiconductor Display Technology Co Ltd
Priority to CN201911291770.5A priority Critical patent/CN111028774B/zh
Priority to US16/639,758 priority patent/US11270651B2/en
Priority to PCT/CN2019/129251 priority patent/WO2021120312A1/zh
Publication of CN111028774A publication Critical patent/CN111028774A/zh
Application granted granted Critical
Publication of CN111028774B publication Critical patent/CN111028774B/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]
    • 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
    • G09G3/3233—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
    • 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
    • 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
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0238—Improving the black level
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/029—Improving the quality of display appearance by monitoring one or more pixels in the display panel, e.g. by monitoring a fixed reference pixel
    • G09G2320/0295—Improving the quality of display appearance by monitoring one or more pixels in the display panel, e.g. by monitoring a fixed reference pixel by monitoring each display pixel
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Electroluminescent Light Sources (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Control Of El Displays (AREA)

Abstract

本揭示提供一种显示面板及显示终端，显示面板包括衬底基板、阵列排布的多个子像素和数据信号线，子像素包括子像素驱动电路和发光器件，子像素驱动电路包括数据信号输入单元、存储单元、驱动单元、侦测单元、第一发光控制单元和第二发光控制单元，通过在发光器件与第二节点之间增设第一发光控制单元，对第二节点的电位进行侦测时，第一发光控制单元关闭，使得发光器件不会异常发光，同时又在第三节点与连接于同一数据信号线上的相邻一行子像素的子像素驱动电路的节点之间增设第二发光控制单元，在对第二节点的电位进行侦测时，当前行的发光器件发出与相邻行发光器件相同亮度的光，无需将当前行子像素做暗线处理，消除暗线的影响。

Description

显示面板及显示终端
技术领域
本发明涉及显示技术领域，尤其涉及一种显示面板及显示终端。
背景技术
有机电致发光二极管(organic light emitting diode，OLED)是一种自发光的显示技术，具有视角宽、对比度高、功耗低和色彩鲜艳等优点。由于这些优势，有源有机电致发光二极管(active matrix organic light emitting diode， AMOLED)在显示行业所占的比重正在逐渐增加。
随着显示面板使用时间延长，显示面板内薄膜晶体管的电性会发生漂移，因此通常会在像素驱动电路设计中引入各种补偿方案。在驱动薄膜晶体管阈值电压外部补偿过程中，通常需要侦测驱动薄膜晶体管源极的电压，为了保证该行像素不会影响面板的显示，会对每个子像素的电源低压信号设计独立的信号走线，从而在侦测过程中，会将当前行子像素对应的电源低压信号的电压抬高，使得有机发光二极管阴极电位比阳极电位高，从而不发光，作为暗线处理。虽然这种设计可以做到对驱动薄膜晶体管阈值电压的补偿，但为每个子像素配置独立的电源低压信号走线不仅会增加像素驱动电路的复杂程度，也会增加制程的难度，同时，该行子像素作为暗线处理还会影响显示面板的显示效果。
综上所述，现有显示面板存在子像素驱动电路进行阈值电压侦测时该行子像素作为暗线处理影响显示面板显示效果的问题。故，有必要提供一种显示面板及显示终端来改善这一缺陷。
发明内容
本揭示实施例提供一种显示面板及显示终端，用于解决现有显示面板存在的子像素驱动电路进行阈值电压侦测时该行子像素作为暗线处理影响显示面板显示效果的问题。
本揭示实施例提供一种显示面板，包括衬底基板、设置于所述衬底基板上并且阵列排布的多个子像素和连接所述子像素的数据信号线，所述子像素包括子像素驱动电路和发光器件，所述子像素驱动电路包括数据信号输入单元、存储单元、驱动单元、侦测单元、第一发光控制单元和第二发光控制单元；
所述数据信号输入单元接入数据信号和第一控制信号，并与所述驱动单元耦接于第一节点；
所述驱动单元接入电源高压信号，并与所述第一发光控制单元和所述侦测单元耦接于第二节点；
所述第一发光控制单元接入第一发光控制信号，并与所述发光器件和所述第二发光控制单元耦接于第三节点；以及
所述第二发光控制单元接入第二发光控制信号，并与连接于同一数据信号线上的相邻一行子像素的子像素驱动电路的节点电性连接。
根据本揭示一实施例，所述第一发光控制单元包括第一薄膜晶体管，所述第一薄膜晶体管的栅极接入所述第一发光控制信号，所述第一薄膜晶体管的第一端与所述第二节点电性连接，所述第一薄膜晶体管的第二端与所述第三节点电性连接。
根据本揭示一实施例，所述第二发光控制单元包括第二薄膜晶体管，所述第二薄膜晶体管的栅极接入第二发光控制信号，所述第二薄膜晶体管的第一端与所述第三节点电性连接，所述第二薄膜晶体管的第二端与连接于同一数据信号线上的相邻一行子像素的子像素驱动电路的节点电性连接。
根据本揭示一实施例，所述第一发光控制信号的电位和所述第二发光控制信号的电位相反。
根据本揭示一实施例，所述子像素驱动电路的时序包括复位阶段、阈值电压存储阶段和探测阶段，所述子像素驱动电路的时序还包括插黑区域，所述插黑区域与所述阈值电压存储阶段部分重叠，所述探测阶段位于所述插黑区域内。
根据本揭示一实施例，在所述复位阶段，所述第一控制信号、所述第二驱动信号和所述第二发光控制信号均为高电位，所述第一发光控制信号为低电位；
在所述阈值电压存储阶段，所述第一控制信号和第二发光控制信号均为高电位，所述第二控制信号为低电位，直至进入插黑区域后转变为高电位；以及
在所述探测阶段，所述第一控制信号、所述第二控制信号和所述第二发光控制信号均为高电位。
根据本揭示一实施例，所述侦测单元包括第三薄膜晶体管，所述显示面板还包括外部侦测单元，所述第三薄膜晶体管的栅极接入所述第二控制信号，所述第三薄膜晶体管的第一端与所述第二节点电性连接，所述第三薄膜晶体管的第二端与所述外部侦测单元连接。
根据本揭示一实施例，所述外部侦测单元包括侦测信号线、初始化电路和侦测电路，侦测信号线与所述初始化电路和侦测电路耦接于第四节点，所述初始化电路接入初始化控制信号，所述侦测电路接入扫描信号。
根据本揭示一实施例，在所述复位阶段，所述初始化控制 信号为高电位，所述扫描信号为低电位；
在所述阈值电压存储阶段，所述初始化控制 信号为高电位，直至进入插黑区域后转变为低电位，所述扫描信号为低电位；以及
在所述探测阶段，所述初始化控制 信号为低电位，所述扫描信号由低电位转变为高电位。
本揭示实施例还提供一种显示终端，包括如上述的显示面板。
本揭示实施例的有益效果：本揭示实施例在显示面板子像素驱动电路中的发光器件与第二节点之间增设第一发光控制单元，在对第二节点的电位进行侦测时，通过第一发光控制信号控制第一发光控制单元关闭，使得发光器件不会因为第二节点电位抬升而异常发光，因此无需为每个子像素驱动电路设置单独的电源低压信号走线，同时又在第三节点与连接于同一数据信号线上的相邻一行子像素的子像素驱动电路的节点之间增设第二发光控制单元，使当前行的发光器件与相邻一行子像素的发光器件并联，在对第二节点的电位进行侦测时，当前行的发光器件发出与相邻行发光器件相同亮度的光，无需将当前行子像素做暗线处理，消除暗线的影响，并提升显示面板的显示效果。
附图说明
为了更清楚地说明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单介绍，显而易见地，下面描述中的附图仅仅是揭示的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本揭示实施例提供的显示面板的平面结构示意图；
图2为本揭示实施例提供的子像素驱动电路的架构示意图；
图3为本揭示实施例提供的子像素驱动电路的结构示意图；
图4位本揭示实施例提供的子像素驱动电路的时序图。
具体实施方式
以下各实施例的说明是参考附加的图示，用以例示本揭示可用以实施的特定实施例。本揭示所提到的方向用语，例如[上]、[下]、[前]、[后]、[左]、[右]、 [内]、[外]、[侧面]等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本揭示，而非用以限制本揭示。在图中，结构相似的单元是用以相同标号表示。
下面结合附图和具体实施例对本揭示做进一步的说明：
本揭示实施例提供一种显示面板，下面结合图1至图3进行详细说明。如图1所示，图1为本揭示实施例提供的显示面板100的平面结构示意图，所述显示面板包括衬底基板11、设置于所述衬底基板11上并且阵列排布的多个子像素12、设置于所述阵列排布的多个子像素12外围的GOA电路单元14，所述GOA电路单元包括级联设置的多级GOA电路，每一级GOA电路通过扫描信号线14与对应的一行子像素12连接，用于提供扫描信号，同时所述GOA电路单元一端又通过走线与位于显示面板100一侧的覆晶薄膜16连接。所述显示面板100还包括多条数据信号线13，每一条所述数据信号线13与对应的一列所述子像素12连接，用于提供数据信号Data，数据信号线13的另一端同样与覆晶薄膜16连接。
所述子像素12包括子像素驱动电路和发光器件，如图2所示，图2为本揭示实施例提供的子像素驱动电路的架构示意图。所述子像素驱动电路包括数据信号输入单元121、存储单元122、驱动单元123、侦测单元124、第一发光控制单元125和第二发光控制单元126。所述数据信号输入单元接入数据信号 Data，并与所述驱动单元123和所述存储单元耦接于第一节点G，所述驱动单元123接入电源高压信号VDD，并与所述存储单元122、侦测单元124和第一发光控制单元125耦接于第二节点S，每一列所述子像素驱动电路的所述侦测单元124均连接同一个所述显示面板100的外部侦测单元17，所述第一发光控制单元125接入第一发光控制信号EM，并与所述发光器件127和所述第二发光控制单元126耦接于第三节点A，所述第二发光控制单元126接入第二发光控制信号XEM，并与连接于同一数据信号线13上的相邻一行子像素12的子像素驱动电路的节点A1电性连接。
本揭示实施例以所述显示面板100上第一行和第二行排布的子像素为例，进行举例说明。如图3所示，图3为本揭示实施例提供的子像素驱动电路的结构示意图，位于第一行的子像素驱动电路中，第一发光控制单元125包括第一薄膜晶体管T11，所述第一薄膜晶体管T11的栅极接入第一行的第一发光控制信号EM，所述第一薄膜晶体管T11的第一端与所述第二节点S电性连接，第二端与所述第三节点A电性连接。所述第二发光控制单元126包括第二薄膜晶体管T12，所述第二薄膜晶体管T12的栅极接入第二发光控制信号XEM，所述第二薄膜晶体管T12的第一端与所述第三节点A电性接，第二端与连接于同一数据信号线13上的相邻一行子像素的子像素驱动电路的节点A1电性连接，使得相邻两行子像素12的发光器件127并联。
如图3所示，所述数据信号输入单元121包括第五薄膜晶体管T15，所述第五薄膜晶体管T15的栅极接入第一控制信号WR，所述第五薄膜晶体管T15 的第一端接入数据信号Data，第二端与第一节点G电性连接。所述驱动单元 123包括第四薄膜晶体管T14，所述第四薄膜晶体管T14为驱动薄膜晶体管，所述第四薄膜晶体管T14的栅极与第一节点G电性连接，所述第四薄膜晶体管 T14的第一端接入电源高压信号VDD，第二端与第二节点S电性连接。所述存储单元122包括存储电容C，所述存储电容C的两端分别与第一节点G和第二节点S电性连接。所述侦测单元123包括第三薄膜晶体管T13，所述第三薄膜晶体管T13的栅极接入第二控制信号RD，所述第三薄膜晶体管的第一端与第二节点S电性连接，第二端与外部侦测单元17连接。
所述外部侦测单元17包括侦测信号线Sensing、初始化电路171和侦测电路172，所述侦测信号线Sensing与初始化电路171和侦测电路172耦接于第四节点B，所述初始化电路171接入一参考电压信号Vref，包括第一开关管SW1，所述侦测电路172包括一模数转换器ADC和第二开光管SW2，所述第一开关管SW1接入初始化控制信号Spre，所述第二开关管SW2接入扫描信号Scan。
如图3所示，第二行子像素驱动电路的结构与第一行子像素驱动电路的结构相同，第二行子像素驱动电路的第五薄膜晶体管T25的栅极接入当前行的第一控制信号WR1，第一端接入数据信号Data1，第二端与第四薄膜晶体管T24 的栅极以及存储电容C1的第一端耦接于第一节点G1，第四薄膜晶体管T24的第一端接入电源高压信号VDD，第二端与第三薄膜晶体管T23的第一端、存储电容C1的第二端以及第一薄膜晶体管T21的第一端耦接于第二节点S1，第三薄膜晶体管T23的栅极接入第二控制信号RD1，第二端与侦测信号线Sensing 连接，第一薄膜晶体管T21的栅极接入第一发光控制信号EM1，第二端与发光器件127以及第二薄膜晶体管T22的第一端耦接于第三节点A1，第二薄膜晶体管T22的栅极接入第二发光控制信号XEM1，第二端与位于下一行子像素驱动电路的节点(图中未示出)电性连接。
在本揭示实施例中，所述第一发光控制信号EM和所述第二发光控制信号 XEM的电位相反。
具体地，如图4所示，图4位本揭示实施例提供的子像素驱动电路的时序图，所述子像素驱动电路的时序包括复位阶段t1、阈值电压存储阶段t2和探测阶段t3，所述子像素驱动电路的时序还包括插黑区域Blanking，所述插黑区域 Blanking位于子像素驱动电路的时序的相邻两帧之间，并且，所述插黑区域 Blanking与所述阈值电压存储阶段t2部分重叠，所述探测阶段t3位于所述插黑区域Blanking内。
以图3所示第一行和第二行子像素驱动电路为例，在当前1帧(1Frame) 第一行子像素结束发光，进入所述复位阶段t1，第一行子像素的第一发光控制信号EM由高电位转变为低电位，第二发光控制信号XEM由低电位转变为高电位，第一控制信号WR、第二控制信号RD和初始化控制信号Spre均由低电位转变为高电位，对应的第一薄膜晶体管T11关断，第二薄膜晶体管T12、第三薄膜晶体管T13、第五薄膜晶体管T15和第一开关管SW1均导通，数据信号 Data通过第五薄膜晶体管T15向第一节点G输入一初始电位，所述初始化电路向所述第二节点S输入一参考电压信号Vref，从而将所述第一节点G和所述第二节点S的电位进行复位。
在所述阈值电压存储阶段t2，第一控制信号WR保持高电位，第二控制信号RD由高电位转变为低电位，对应的第五薄膜晶体管T15保持导通状态，第三薄膜晶体管T13关断，数据信号Data通过所述第五薄膜晶体管T15对第一节点进行充电，电源高压信号VDD通过第四薄膜晶体管T14对第二节点S进行充电，使第二节点S的电位不断上升，直到第一节点G的电位VG与第二节点的电位VS的电位之差为第四薄膜晶体管T14的阈值电压Vth，此时像素驱动电路的时序进入插黑区域Blanking，第四薄膜晶体管T14的阈值电压Vth被存储至存储电容C内。在此阶段内，所述显示面板100内其余行子像素12的子像素驱动电路内，数据信号Data可以保持正常写入。
在所述阈值电压存储阶段t2内，由于第一发光控制信号EM为低电位，第二发光控制信号XEM保持高电位，使得第一薄膜晶体管T11关断，第二薄膜晶体管T12导通，发光器件127不会因为第二节点S电位的抬升而异常发光。位于第二行的子像素驱动电路中，第一发光控制信号EM1此时为高电位，第二行子像素驱动电路的第一薄膜晶体管T21导通，发光器件127发光，而位于第一行子像素的第二薄膜晶体管T12此时也导通，使得第一行子像素的发光器件 127与第二行子像素的发光器件127并联，两者发出相同亮度的光，从而无需将当前行结束显示的子像素作为暗线处理，不仅能够提升显示面板100的显示效果，同时也无需单独设置电源低压信号VSS的信号走线，使得电源低压信号走线可以保持整面设计，优化子像素驱动电路结构的同时，还可以减少相应的生产制程，提高生产效率。
在所述阈值电压存储阶段t2内，初始化控制信号Spre保持高电位，直至同一数据信号线13全部行子像素驱动电路的全部信号写入完成，即进入插黑区域Blanking，此时初始化控制信号Spre转变为低电位。
在所述探测阶段，第一行子像素驱动电路的所述第一控制信号WR、第二控制信号RD、第二发光控制信号XEM以及扫描信号Scan均为高电位，第一发光控制信号EM和初始化控制信号Spre为低电位，对应的第一薄膜晶体管 T11关断，第二薄膜晶体管T12、第三薄膜晶体管T13和第五薄膜晶体管T15 均导通，第一开关管SW1关断，第二开关管SW2导通，侦测电路上的模数转换器ADC通过第三薄膜晶体管T13侦测第二节点S的电位，并计算得到当前行第四薄膜晶体管T14的阈值电压Vth，完成对驱动单元123的第四薄膜晶体管T14的阈值电压Vth的探测。进入下一帧后，第一控制信号WR和第二控制信号RD转变为高电位，对应的第五薄膜晶体管T15和第三薄膜晶体管T13导通，通过外部补偿提升数据信号Data的电位，进而在数据信号Data通过第五薄膜晶体管T5输入至第一节点G，提高第一节点G的电位，提高流经第二节点S的电流，实现第一行子像素驱动电路内部电流补偿，从而抵消第四薄膜晶体管T14阈值电压Vth的影响，保证发光器件127发光亮度的均一化。
在本揭示实施例中，所述发光器件127为有机发光二极管(organic lightemitting diode,OLED)，子像素驱动电路所采用的驱动方式为主动矩阵驱动方式。当然，在一些实施例中，所述发光器件127也可以是微发光二极管(micro light emitting diode,Micro LED)，可以取得与本揭示实施例相同的技术效果，此处不做限制。
本揭示实施例的有益效果：本揭示实施例在显示面板子像素驱动电路中的发光器件与第二节点之间增设第一发光控制单元，在对第二节点的电位进行侦测时，通过第一发光控制信号控制第一发光控制单元关闭，使得发光器件不会因为第二节点电位抬升而异常发光，因此无需为每个子像素驱动电路设置单独的电源低压信号走线，同时又在节点与连接于同一数据信号线上的相邻一行子像素的子像素驱动电路的第三节点之间增设第二发光控制单元，使当前行的发光器件与相邻一行子像素的发光器件并联，在对第二节点的电位进行侦测时，当前行的发光器件发出与相邻行发光器件相同的光，无需将当前行子像素做暗线处理，消除了暗线的影响，并提升显示面板的显示效果。
本揭示实施例还提供一种显示终端，包括如上述实施例所提供的显示面板，并且能够实现与上述实施例提供的显示面板相同的技术效果，此处不再赘述。
综上所述，虽然本揭示以优选实施例揭露如上，但上述优选实施例并非用以限制本揭示，本领域的普通技术人员，在不脱离本揭示的精神和范围内，均可作各种更动与润饰，因此本揭示的保护范围以权利要求界定的范围为基准。

Claims (9)

1.一种显示面板，其特征在于，包括衬底基板、设置于所述衬底基板上并且阵列排布的多个子像素和连接所述子像素的数据信号线，所述子像素包括子像素驱动电路和发光器件，所述子像素驱动电路包括数据信号输入单元、存储单元、驱动单元、侦测单元、第一发光控制单元和第二发光控制单元；
所述数据信号输入单元接入数据信号和第一控制信号，并与所述驱动单元耦接于第一节点；
所述驱动单元接入电源高压信号，并与所述第一发光控制单元和所述侦测单元耦接于第二节点；
所述第一发光控制单元接入第一发光控制信号，并与所述发光器件和所述第二发光控制单元耦接于第三节点；以及
所述第二发光控制单元接入第二发光控制信号，并与连接于同一数据信号线上的相邻一行子像素的子像素驱动电路的第三节点电性连接；
同一所述子像素对应的所述第一发光控制信号和所述第二发光控制信号的电位相反，对当前行所述子像素的所述子像素驱动电路进行侦测的过程中，在当前行所述子像素对应的所述第二发光控制信号为高电位时，相邻一行所述子像素对应的所述第一发光控制信号也为高电位。
2.如权利要求1所述的显示面板，其特征在于，所述第一发光控制单元包括第一薄膜晶体管，所述第一薄膜晶体管的栅极接入所述第一发光控制信号，所述第一薄膜晶体管的第一端与所述第二节点电性连接，所述第一薄膜晶体管的第二端与所述第三节点电性连接。
3.如权利要求2所述的显示面板，其特征在于，所述第二发光控制单元包括第二薄膜晶体管，所述第二薄膜晶体管的栅极接入第二发光控制信号，所述第二薄膜晶体管的第一端与所述第三节点电性连接，所述第二薄膜晶体管的第二端与连接于同一数据信号线上的相邻一行子像素的子像素驱动电路的节点电性连接。
4.如权利要求3所述的显示面板，其特征在于，所述子像素驱动电路的时序包括复位阶段、阈值电压存储阶段和探测阶段，所述子像素驱动电路的时序还包括插黑区域，所述插黑区域与所述阈值电压存储阶段部分重叠，所述探测阶段位于所述插黑区域内。
5.如权利要求4所述的显示面板，其特征在于，侦测单元接入第二控制信号，在所述复位阶段，所述第一控制信号、所述第二控制信号和所述第二发光控制信号均为高电位，所述第一发光控制信号为低电位；
在所述阈值电压存储阶段，所述第一控制信号和所述第二发光控制信号均为高电位，所述第二控制信号为低电位，直至进入插黑区域后转变为高电位；以及
在所述探测阶段，所述第一控制信号、所述第二控制信号和所述第二发光控制信号均为高电位。
6.如权利要求5所述的显示面板，其特征在于，所述侦测单元包括第三薄膜晶体管，所述显示面板还包括外部侦测单元，所述第三薄膜晶体管的栅极接入所述第二控制信号，所述第三薄膜晶体管的第一端与所述第二节点电性连接，所述第三薄膜晶体管的第二端与所述外部侦测单元连接。
7.如权利要求6所述的显示面板，其特征在于，所述外部侦测单元包括侦测信号线、初始化电路和侦测电路，侦测信号线与所述初始化电路和侦测电路耦接于第四节点，所述初始化电路接入初始化控制信号，所述侦测电路接入扫描信号。
8.如权利要求7所述的显示面板，其特征在于，在所述复位阶段，所述初始化控制信号为高电位，所述扫描信号为低电位；
在所述阈值电压存储阶段，所述初始化控制信号为高电位，直至进入插黑区域后转变为低电位，所述扫描信号为低电位；以及
在所述探测阶段，所述初始化控制信号为低电位，所述扫描信号由低电位转变为高电位。
9.一种显示终端，其特征在于，包括如权利要求1至8任一项所述的显示面板。
CN201911291770.5A 2019-12-16 2019-12-16 显示面板及显示终端 Active CN111028774B (zh)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201911291770.5A CN111028774B (zh) 2019-12-16 2019-12-16 显示面板及显示终端
US16/639,758 US11270651B2 (en) 2019-12-16 2019-12-27 Display panel and display terminal
PCT/CN2019/129251 WO2021120312A1 (zh) 2019-12-16 2019-12-27 显示面板及显示终端

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911291770.5A CN111028774B (zh) 2019-12-16 2019-12-16 显示面板及显示终端

Publications (2)

Publication Number Publication Date
CN111028774A CN111028774A (zh) 2020-04-17
CN111028774B true CN111028774B (zh) 2021-07-06

Family

ID=70209275

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911291770.5A Active CN111028774B (zh) 2019-12-16 2019-12-16 显示面板及显示终端

Country Status (3)

Country Link
US (1) US11270651B2 (zh)
CN (1) CN111028774B (zh)
WO (1) WO2021120312A1 (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111477669B (zh) * 2020-05-09 2023-04-18 京东方科技集团股份有限公司 一种显示面板及其制作方法、显示装置
WO2023000215A1 (zh) * 2021-07-21 2023-01-26 京东方科技集团股份有限公司 显示基板及显示装置
WO2023230963A1 (zh) * 2022-06-01 2023-12-07 京东方科技集团股份有限公司 显示面板及显示装置
CN117354639B (zh) * 2023-10-12 2024-06-11 之江实验室 全方位拮抗像素电路、驱动方法以及探测器

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105097867A (zh) * 2014-05-08 2015-11-25 乐金显示有限公司 有机发光显示器及其维修方法
CN106233233A (zh) * 2014-04-23 2016-12-14 株式会社半导体能源研究所 输入/输出装置及输入/输出装置的驱动方法
CN106415701A (zh) * 2014-06-23 2017-02-15 夏普株式会社 显示装置及其驱动方法
CN108877649A (zh) * 2017-05-12 2018-11-23 京东方科技集团股份有限公司 像素电路及其驱动方法、显示面板

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014203810A1 (ja) * 2013-06-20 2014-12-24 シャープ株式会社 表示装置およびその駆動方法
KR102233719B1 (ko) * 2014-10-31 2021-03-30 엘지디스플레이 주식회사 유기 발광 다이오드 표시 장치 및 그 구동 방법
KR102409454B1 (ko) * 2015-02-02 2022-06-15 삼성디스플레이 주식회사 표시 패널
CN104900186B (zh) * 2015-06-15 2017-05-31 京东方科技集团股份有限公司 Oled像素电路及其显示装置
KR102453421B1 (ko) * 2015-07-29 2022-10-13 삼성디스플레이 주식회사 유기 발광 표시 장치 및 이의 구동 방법
US10332446B2 (en) * 2015-12-03 2019-06-25 Innolux Corporation Driving circuit of active-matrix organic light-emitting diode with hybrid transistors
KR102603598B1 (ko) * 2016-11-30 2023-11-21 엘지디스플레이 주식회사 표시장치
CN106981268B (zh) * 2017-05-17 2019-05-10 京东方科技集团股份有限公司 一种像素电路及其驱动方法、显示装置
KR102568285B1 (ko) * 2017-12-28 2023-08-17 엘지디스플레이 주식회사 유기발광표시패널 및 이를 이용한 유기발광표시장치
KR102615707B1 (ko) * 2017-12-29 2023-12-18 엘지디스플레이 주식회사 유기발광표시패널 및 이를 이용한 유기발광표시장치
KR102661852B1 (ko) * 2018-08-13 2024-04-30 삼성디스플레이 주식회사 센싱 동작을 수행하는 표시 장치

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106233233A (zh) * 2014-04-23 2016-12-14 株式会社半导体能源研究所 输入/输出装置及输入/输出装置的驱动方法
CN105097867A (zh) * 2014-05-08 2015-11-25 乐金显示有限公司 有机发光显示器及其维修方法
CN106415701A (zh) * 2014-06-23 2017-02-15 夏普株式会社 显示装置及其驱动方法
CN108877649A (zh) * 2017-05-12 2018-11-23 京东方科技集团股份有限公司 像素电路及其驱动方法、显示面板

Also Published As

Publication number Publication date
US20210398492A1 (en) 2021-12-23
CN111028774A (zh) 2020-04-17
WO2021120312A1 (zh) 2021-06-24
US11270651B2 (en) 2022-03-08

Similar Documents

Publication Publication Date Title
CN111028774B (zh) 显示面板及显示终端
US12014676B2 (en) Display panel and display device
US9847057B2 (en) Structure of AMOLED driver circuit with external compensation
US11205385B2 (en) Display panel and method of controlling the same, and display apparatus
US20210217362A1 (en) Pixel circuit, driving method thereof, and display device
US20160005356A1 (en) Oled Pixel Circuit, Driving Method of the Same, and Display Device
US9591715B2 (en) OLED driving compensation circuit and driving method thereof
US9984622B2 (en) Pixel driving circuit, driving method thereof and display device using the same
US20200388220A1 (en) Pixel circuit unit, driving method thereof, display panel and display device
US11328668B2 (en) Pixel circuit and driving method thereof, and display panel
US10354591B2 (en) Pixel driving circuit, repair method thereof and display device
US10810939B2 (en) Display device
US11145230B2 (en) Method and device for detecting a threshold voltage drift of a transistor in a pixel circuit
CN110675829B (zh) 像素驱动电路及其驱动方法、显示面板、显示装置
US20210335233A1 (en) Pixel circuit and method of driving the same, display device
US11424294B2 (en) Display panel including sub-pixels arranged in an array that comprises N rows and 4M columns and display device having the same
CN113112962B (zh) 显示驱动电路及显示驱动电路的驱动方法
US9230475B2 (en) Display device and electronic apparatus
CN109872682A (zh) 像素补偿电路及显示装置
CN113112958B (zh) 像素驱动电路及显示面板
US20230252943A1 (en) Display control method and device
US12020632B2 (en) Display panel and display device
US9679518B2 (en) Display device
CN117373372A (zh) 像素电路

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