CN111951720B - 自发光型显示面板 - Google Patents

自发光型显示面板 Download PDF

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CN111951720B
CN111951720B CN202010796700.1A CN202010796700A CN111951720B CN 111951720 B CN111951720 B CN 111951720B CN 202010796700 A CN202010796700 A CN 202010796700A CN 111951720 B CN111951720 B CN 111951720B
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power supply
thin film
display panel
film transistor
self
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CN111951720A (zh
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李艳
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TCL Huaxing Photoelectric Technology Co Ltd
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TCL Huaxing Photoelectric Technology Co Ltd
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Priority to US17/050,845 priority patent/US20220077192A1/en
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—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]
    • 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
    • G09G3/2007—Display of intermediate tones
    • 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
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0421—Structural details of the set of electrodes
    • G09G2300/0426—Layout of electrodes and connections
    • 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
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier
    • H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body
    • H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
    • H01L27/124—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition, shape or layout of the wiring layers specially adapted to the circuit arrangement, e.g. scanning lines in LCD pixel circuits
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier
    • H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body
    • H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
    • H01L27/1255—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs integrated with passive devices, e.g. auxiliary capacitors

Abstract

本申请公开了一种自发光型显示面板，其包括一供电性膜层；供电性膜层被划分为若干个相互绝缘的供电区块；每个供电区块电性连接多个位于供电区块中的像素电路；通过将供电性膜层划分为供电区块，可以独立地为对应的像素电路提供更高灰阶显示，进而较为容易地实现了自发光型显示面板的分区显示。

Description

自发光型显示面板
技术领域
本申请涉及显示技术领域，尤其涉及自发光显示技术领域，具体涉及一种自发光型显示面板。
背景技术
自发光型显示面板中为像素电路提供的发光电源，通常是在该显示面板中设置一个整面性的导电膜层，再从显示面板的外部为该导电膜层提供对应的电位，该导电膜层再通过过孔与像素电路电性连接，从而实现的在一个显示面板中，为所有像素电路提供发光电源的只能为同一电位。
受限于传统技术方案中导电膜层的整面性设计，导致现有的显示面板难以进行分区显示即既可以进行低灰阶显示，又可以进行高灰阶显示。
发明内容
本申请提供一种自发光型显示面板，解决了自发光型显示面板难以进行分区显示的问题。
第一方面，本申请提供了一种自发光型显示面板，自发光型显示面板包括一供电性膜层；供电性膜层被划分为若干个相互绝缘的供电区块；每个供电区块电性连接多个位于供电区块中的像素电路；其中，一部分供电区块被通入第一电位；另一部分供电区块被通入第二电位，且第二电位高于第一电位。
基于第一方面，在第一方面的第一种实施方式中，像素电路包括写入单元、存储单元、驱动单元以及发光单元；写入单元与扫描信号、数据信号、存储单元的一端以及驱动单元的控制端连接；存储单元的一端与驱动单元的控制端连接；零电位与存储单元的另一端和驱动单元的输出端连接；驱动单元的输入端与发光单元的输出端连接；发光单元的输入端与对应的供电区块电性连接。
基于第一方面的第一种实施方式，在第一方面的第二种实施方式中，写入单元包括第一薄膜晶体管；第一薄膜晶体管的漏极与数据信号连接；第一薄膜晶体管的栅极与扫描信号连接；第一薄膜晶体管的源极与存储单元的一端以及驱动单元的控制端连接。
基于第一方面的第二种实施方式，在第一方面的第三种实施方式中，存储单元包括存储电容；存储电容的第一端与第一薄膜晶体管的源极和驱动单元的控制端连接；存储电容的第二端与零电位连接。
基于第一方面的第三种实施方式，在第一方面的第四种实施方式中，驱动单元包括第二薄膜晶体管；第二薄膜晶体管的栅极与存储电容的第一端连接；第二薄膜晶体管的源极与零电位连接；第二薄膜晶体管的漏极与发光单元的输出端连接。
基于第一方面的第四种实施方式，在第一方面的第五种实施方式中，发光单元包括发光器件；发光器件的负极与第二薄膜晶体管的漏极连接；发光器件的正极与对应的供电区块连接。
基于第一方面的第五种实施方式，在第一方面的第六种实施方式中，第一薄膜晶体管、第二薄膜晶体管均为N型薄膜晶体管。
基于第一方面，在第一方面的第七种实施方式中，供电区块的形状为矩形。
基于第一方面，在第一方面的第八种实施方式中，供电区块与对应的四个像素电路连接。
第二方面，本申请提供了一种自发光型显示面板，自发光型显示面板包括一供电性膜层；供电性膜层被划分为若干个相互绝缘的供电区块；每个供电区块电性连接位于供电区块且不同数量的像素电路；其中，一部分供电区块被通入第一电位；另一部分供电区块被通入第二电位，且第二电位高于第一电位。
本申请提供的自发光型显示面板，通过将供电性膜层划分为供电区块，可以独立地为对应的像素电路提供更高灰阶显示，进而较为容易地实现了自发光型显示面板的分区显示。
附图说明
下面结合附图，通过对本申请的具体实施方式详细描述，将使本申请的技术方案及其它有益效果显而易见。
图1为本申请实施例提供的自发光型显示面板的结构示意图。
图2为图1中所示的像素电路的结构示意图。
图3为图2中所示的像素电路的时序示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述。显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
如图1或者图3所示，本实施例提供了一种自发光型显示面板120，其包括一供电性膜层(未图示)；供电性膜层被划分为若干个相互绝缘的供电区块110；每个供电区块110电性连接多个位于供电区块110中的像素电路100；其中，一部分供电区块110被通入第一电位V1；另一部分供电区块110被通入第二电位V2，且第二电位V2高于第一电位V1。
可以理解的是，通过将该供电性膜层划分为供电区块110，可以独立地为对应的像素电路100提供更高的电位作为发光电源，可以实现高灰阶显示，同时较为容易地实现了自发光型显示面板120的分区显示，高灰阶可以显示出更细腻的画面，低灰阶显示用于对比度较高的特殊画面显示。
需要进行说明的是，供电区块110可以通过膜层过孔与对应的像素电路100进行电性连接；以及显示面板120可以提供不同的电位至对应的膜层，例如，可以提供第一电位V1、第二电位V2至供电性膜层中对应的供电区块110。
如图2所示，在其中一个实施例中，像素电路100包括写入单元30、存储单元40、驱动单元20以及发光单元10；写入单元30与扫描信号SS、数据信号DS、存储单元40的一端以及驱动单元20的控制端连接；存储单元40的一端与驱动单元20的控制端连接；零电位与存储单元40的另一端和驱动单元20的输出端连接；驱动单元20的输入端与发光单元10的输出端连接；发光单元10的输入端与直流电位VDD连接；直流电位VDD与对应的供电区块110电性连接。
如图2所示，在其中一个实施例中，写入单元30包括第一薄膜晶体管T1；第一薄膜晶体管T1的漏极与数据信号DS连接；第一薄膜晶体管T1的栅极与扫描信号SS连接；第一薄膜晶体管T1的源极与存储单元40的一端以及驱动单元20的控制端连接。
如图2所示，在其中一个实施例中，存储单元40包括存储电容CS；存储电容CS的第一端与第一薄膜晶体管T1的源极和驱动单元20的控制端连接；存储电容CS的第二端与零电位连接。
如图2所示，在其中一个实施例中，驱动单元20包括第二薄膜晶体管T2；第二薄膜晶体管T2的栅极与存储电容CS的第一端连接；第二薄膜晶体管T2的源极与零电位连接；第二薄膜晶体管T2的漏极与发光单元10的输出端连接。
如图2所示，在其中一个实施例中，发光单元10包括发光器件LED；发光器件LED的负极与第二薄膜晶体管T2的漏极连接；发光器件LED的正极与对应的供电区块110连接。
可以理解的是，发光器件LED可以为各种二极管型发光器件LED，可以但不限于为mini型、或者micro型、或者有机电致发光型等LED。
在其中一个实施例中，第一薄膜晶体管T1、第二薄膜晶体管T2均为N型薄膜晶体管。
在其中一个实施例中，供电区块110的形状可以但不限于为矩形，也可以为椭圆形状，或者其他不规则形状。
在其中一个实施例中，供电区块110与对应的四个像素电路100连接，可以理解的是，本实施例并不局限于一个供电区块110与对应的四个像素电路100连接，也可以与对应的两个像素电路100连接，或者更多数量的。
如图1所示，在其中一个实施例中，本申请提供了一种自发光型显示面板120，其包括一供电性膜层(未图示)；供电性膜层被划分为若干个相互绝缘的供电区块110；每个供电区块110电性连接位于供电区块110且不同数量的像素电路100；其中，一部分供电区块110被通入第一电位V1；另一部分供电区块110被通入第二电位V2，且第二电位V2高于第一电位V1。
可以理解的是，通过将该供电性膜层划分为供电区块110，可以独立地为对应的像素电路100提供更高的电位作为发光电源，可以实现高灰阶显示，同时较为容易地实现了自发光型显示面板120的分区显示，高灰阶可以显示出更细腻的画面，低灰阶显示用于对比度较高的特殊画面显示。
综上所述，如图3所示，第一电位V1通过供电区块110给对应的像素电路100中的直流电位VDD进行供电时，对应的像素电路100可以实现低灰阶显示；第二电位V2通过供电区块110给对应的像素电路100中的直流电位VDD进行供电时，对应的像素电路100可以实现高灰阶显示。
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其他实施例的相关描述。
以上对本申请实施例所提供的自发光型显示面板120进行了详细介绍，本文中应用了具体个例对本申请的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本申请的技术方案及其核心思想；本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例的技术方案的范围。

Claims (10)

1.一种自发光型显示面板，其特征在于，所述自发光型显示面板包括：
一供电性膜层，所述供电性膜层包括若干个相互绝缘的供电区块；
像素电路，所述像素电路包括发光单元，位于同一供电区块中的多个所述发光单元的阳极与对应的一所述供电区块电性连接；
其中，一部分所述供电区块被通入第一电位；另一部分所述供电区块被通入第二电位，且所述第二电位高于所述第一电位。
2.根据权利要求1所述的自发光型显示面板，其特征在于，所述像素电路包括写入单元、存储单元以及驱动单元；
所述写入单元与扫描信号、数据信号、所述存储单元的一端以及所述驱动单元的控制端连接；所述存储单元的一端与所述驱动单元的控制端连接；零电位与所述存储单元的另一端和所述驱动单元的输出端连接；所述驱动单元的输入端与所述发光单元的输出端连接。
3.根据权利要求2所述的自发光型显示面板，其特征在于，所述写入单元包括第一薄膜晶体管；
所述第一薄膜晶体管的漏极与所述数据信号连接；所述第一薄膜晶体管的栅极与所述扫描信号连接；所述第一薄膜晶体管的源极与所述存储单元的一端以及所述驱动单元的控制端连接。
4.根据权利要求3所述的自发光型显示面板，其特征在于，所述存储单元包括存储电容；
所述存储电容的第一端与所述第一薄膜晶体管的源极和所述驱动单元的控制端连接；所述存储电容的第二端与零电位连接。
5.根据权利要求4所述的自发光型显示面板，其特征在于，所述驱动单元包括第二薄膜晶体管；
所述第二薄膜晶体管的栅极与所述存储电容的第一端连接；所述第二薄膜晶体管的源极与零电位连接；所述第二薄膜晶体管的漏极与所述发光单元的输出端连接。
6.根据权利要求5所述的自发光型显示面板，其特征在于，所述发光单元包括发光器件；
所述发光器件的负极与所述第二薄膜晶体管的漏极连接；所述发光器件的正极与对应的所述供电区块连接。
7.根据权利要求6所述的自发光型显示面板，其特征在于，所述第一薄膜晶体管、所述第二薄膜晶体管均为N型薄膜晶体管。
8.根据权利要求1所述的自发光型显示面板，其特征在于，所述供电区块的形状为矩形。
9.根据权利要求1所述的自发光型显示面板，其特征在于，所述供电区块与对应的四个所述像素电路连接。
10.一种自发光型显示面板，其特征在于，所述自发光型显示面板包括：
一供电性膜层，所述供电性膜层包括若干个相互绝缘的供电区块；
像素电路，所述像素电路包括发光单元，位于同一供电区块中不同数量的所述发光单元的阳极与对应的一所述供电区块电性连接；
其中，一部分所述供电区块被通入第一电位；另一部分所述供电区块被通入第二电位，且所述第二电位高于所述第一电位。
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