CN111192557A - 一种像素补偿电路及驱动方法 - Google Patents

一种像素补偿电路及驱动方法 Download PDF

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CN111192557A
CN111192557A CN202010129481.1A CN202010129481A CN111192557A CN 111192557 A CN111192557 A CN 111192557A CN 202010129481 A CN202010129481 A CN 202010129481A CN 111192557 A CN111192557 A CN 111192557A
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贾浩
罗敬凯
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Fujian Huajiacai Co Ltd
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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]
    • 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]
    • G09G3/3225—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

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  • Computer Hardware Design (AREA)
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  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
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  • Control Of El Displays (AREA)

Abstract

一种像素补偿电路，包括薄膜晶体管T1、T2、T3、T4、T5，电容C1、C2；所述T1的源极与片上电压VDD连接，漏极与T4的源端连接，栅极与第一扫描信号连接；所述T2的栅极与第二扫描信号连接，源极接数据信号，漏极与T4的栅极和C1的一端连接，所述C1的另一端与T3的源极连接，T3的栅极与第二扫描信号连接，C1的另一端还通过C2与T4的漏极连接，T4的漏极还与发光子像素的正极连接，发光子像素的负极还与T3的漏极连接后接地或接片上低电压；发光子像素的正极还通过T5与Vsus连接，T5的栅极与第三扫描信号连接。上述技术方案藉由五个开关、实现像素补偿电路的运作，可以补偿驱动TFT的电压漂移，发光电流只与Vdata有关，以达到像素补偿和面板亮度均匀的效果。大大增加了OLED发光电流的稳定性。

Description

一种像素补偿电路及驱动方法
技术领域
本发明涉及液晶面板显示领域，尤其涉及一种液晶面板消除像素发光不稳定的电路设计。
背景技术
AMOLED面板自发光，与传统LCD相比更轻薄，可视角度高；但会有一些不良因子影响其发光亮度，如Vth漂移会使面板发光电流受到影响；另外本身OLED材料老化也会影响发光电流，进而影响发光亮度；同时本身金属走向的阻抗对发光电流产生不良影响，即I-Rdrop；这些不良因子对面板发光亮度有着很严重的影响。Pixel所占面积越小，同样面积大小的面板所容纳的Pixel数量越多，解析度就越高，画面质量越好。
由于AMOLED面板上的电压VDD于每个像素间都连接在一起，当驱动发光时，电压VDD上会有电流流过。考虑到VDD金属线本身具有阻抗，会有压降存在，造成每一像素的VDD会出现差异，导致不同像素间存在电流差异。如此一来，流经OLED的电流不同，所产生的亮度也不同，进而AMOLED面板不均匀。另外，由于制程的影响，每一像素中的薄膜晶体管的阈值电压均不相同，即使提供相同数值的电压Vdata，其所产生的电流仍然会有差异，这也将造成面板不均匀。此外，如果采用像素补偿电路对上述电压进行补偿，大部分补偿电路又会受限于扫描时间太短而影响补偿效果。
有鉴于此，如何消除VTH等不良因子对电流的影响，使发光电流只与写入的VDATA有关，以及如何通过减小Pixel所占面积来提高解析度，是一项重要课题。
发明内容
为此，需要提供一种能够解决液晶面板显示过程中，补偿显示电压使得显示效果更好的方法，
为实现上述目的，发明人提供了一种像素补偿电路，包括薄膜晶体管T1、T2、T3、T4、T5，电容C1、C2；所述T1的源极与片上电压VDD连接，漏极与T4的源端连接，栅极与第一扫描信号连接；所述T2的栅极与第二扫描信号连接，源极接数据信号，漏极与T4的栅极和C1的一端连接，所述C1的另一端与T3的源极连接，T3的栅极与第二扫描信号连接，C1的另一端还通过C2与T4的漏极连接，T4的漏极还与发光子像素的正极连接，发光子像素的负极还与T3的漏极连接后接地或接片上低电压；发光子像素的正极还通过T5与Vsus连接，T5的栅极与第三扫描信号连接。
进一步地，所述T1、T2、T3、T4、C1、C2设置于面板发光区子像素区内，T5逐行设置于面板的外围电路，与多个发光子像素的正极连接。
一种像素补偿电路驱动方法，适用于上述的像素补偿电路，方法包括重置阶段、补偿阶段、写入阶段和发光阶段；
重置阶段，第一扫描信号低电平，第二扫描信号及第三扫描信号高电平，数据信号写入参考电压；补偿阶段第一扫描信号及第二扫描信号高电平，第三扫描信号低电平，数据信号写入参考电压；写入阶段，第一扫描信号及第三扫描信号低电平，第二扫描信号高电平，数据信号写入参考电压加数据电压的和；发光阶段，第一扫描信号高电平，第二扫描信号及第三扫描信号低电平，数据信号写入参考电压。
区别于现有技术，上述技术方案本发明藉由五个开关、实现像素补偿电路的运作，可以补偿驱动TFT的电压漂移，发光电流只与Vdata有关，以达到像素补偿和面板亮度均匀的效果。大大增加了OLED发光电流的稳定性。
附图说明
图1为具体实施方式所述的像素补偿电路设计原理图；
图2为具体实施方式所述的重置阶段电路状态及信号示意图；
图3为具体实施方式所述的补偿阶段电路状态及信号示意图；
图4为具体实施方式所述的写入阶段电路状态及信号示意图；
图5为具体实施方式所述的发光阶段电路状态及信号示意图。
具体实施方式
为详细说明技术方案的技术内容、构造特征、所实现目的及效果，以下结合具体实施例并配合附图详予说明。
图1所示的实施例中，展示了一种像素补偿电路，包括薄膜晶体管T1、T2、T3、T4、T5，电容C1、C2；所述T1的源极与片上电压VDD连接，漏极与T4的源端连接，栅极与第一扫描信号连接；所述T2的栅极与第二扫描信号连接，源极接数据信号，漏极与T4的栅极和C1的一端连接，所述C1的另一端与T3的源极连接，T3的栅极与第二扫描信号连接，C1的另一端还通过C2与T4的漏极连接，T4的漏极还与发光子像素的正极连接，发光子像素的负极还与T3的漏极连接后接地或接片上低电压；发光子像素的正极还通过T5与Vsus连接，T5的栅极与第三扫描信号连接。该像素补偿电路的驱动原理如图2-图5所示，包括重置阶段、补偿阶段、写入阶段和发光阶段；
如图2重置阶段(Reset)，第一扫描信号Scan1低电平，第二扫描信号Scan2及第三扫描信号Scan3高电平，数据信号写入参考电压。则有T2，T3打开，DATA讯号写入VREF电压，VA＝VREF；VC＝VSS；Scan3写入高电压，Scan1写入低电压，T5打开，T1关闭，VB＝Vsus。
如图3补偿阶段(Comp)第一扫描信号Scan1及第二扫描信号Scan2高电平，第三扫描信号Scan3低电平，数据信号写入参考电压。则有T1打开，T5关闭，VDD写入使B点电压升高到VREF-VTH时，T4关闭，此时VB＝VREF-VTH，即补偿到一个VTH；VA和VC保持不变，即VA＝VREF,VC＝VSS。
如图4写入阶段(Data In)，第一扫描信号Scan1及第三扫描信号Scan3低电平，第二扫描信号Scan2高电平，数据信号写入参考电压加数据电压的和VREF+VDATA。则有T2和T3打开，VA＝VREF+VDATA,VC保持在VSS电压，即VC＝VSS，由于BC间电容的作用，B点电压保持不变，即VB＝VREF-VTH。
如图5发光阶段(commission)，第一扫描信号Scan1高电平，第二扫描信号Scan2及第三扫描信号Scan3低电平，数据信号写入参考电压。T2和T3关闭，发光二极管导通，VB＝VOLED+VSS，由于BC间电容的作用，VC＝VSS+VOLED+VSS-(VREF-VTH)，由于AC间的电容作用，VA＝VREF+VDATA+VOLED+VSS-(VREF-VTH)＝VDATA+VOLED+VSS+VTH，那么VGS＝VA-VB＝VDATA+VTH，代入饱和区电流公式IOLED＝1/2μnCOXW/L(VGS-VTH)2得到IOLED＝1/2μnCOXW/L(VDATA)2(注μn为场效应迁移率，COX为单位面积的绝缘层电容；W/L为TFT沟道宽度比长度)。
从OLED发光电流公式可以了解OLED电流只与VDATA有关，与VTH无关，其他参数相对固定，达到了设计目的，可见上述补偿电路对TFT有很好的补偿效果。提升了面板的发光效果。
在其他如图1所示的进一步的实施例中，我们可以看到所述T1、T2、T3、T4、C1、C2设置于面板发光区子像素区内，T5逐行设置于面板的外围电路，同一行的多个发光子像素的正极通过T5控制Vsus电压的通断。这里的发光子像素我们可以看到，是例如R\G\B三色的子像素，其所在的面板功能区AA(Active Area)是发光区域，外围电路是其外周的非发光区域，可以用于设计走线等。将T5设置于外围电路能够有效减少功能区的子像素区域的元件数量，从而减少面积占用，提高面板的单位像素。同时每行仅使用一个TFT驱动，也能够减少相应的设计成本。
需要说明的是，尽管在本文中已经对上述各实施例进行了描述，但并非因此限制本发明的专利保护范围。因此，基于本发明的创新理念，对本文所述实施例进行的变更和修改，或利用本发明说明书及附图内容所作的等效结构或等效流程变换，直接或间接地将以上技术方案运用在其他相关的技术领域，均包括在本发明的专利保护范围之内。

Claims (3)

1.一种像素补偿电路，其特征在于，包括薄膜晶体管T1、T2、T3、T4、T5，电容C1、C2；所述T1的源极与片上电压VDD连接，漏极与T4的源端连接，栅极与第一扫描信号连接；所述T2的栅极与第二扫描信号连接，源极接数据信号，漏极与T4的栅极和C1的一端连接，所述C1的另一端与T3的源极连接，T3的栅极与第二扫描信号连接，C1的另一端还通过C2与T4的漏极连接，T4的漏极还与发光子像素的正极连接，发光子像素的负极还与T3的漏极连接后接地或接片上低电压；发光子像素的正极还通过T5与Vsus连接，T5的栅极与第三扫描信号连接。
2.根据权利要求1所述的像素补偿电路，其特征在于，所述T1、T2、T3、T4、C1、C2设置于面板发光区子像素区内，T5逐行设置于面板的外围电路，与多个发光子像素的正极连接。
3.一种像素补偿电路驱动方法，其特征在于，适用于权利要求1或2所述的像素补偿电路，方法包括重置阶段、补偿阶段、写入阶段和发光阶段；
重置阶段，第一扫描信号低电平，第二扫描信号及第三扫描信号高电平，数据信号写入参考电压；补偿阶段第一扫描信号及第二扫描信号高电平，第三扫描信号低电平，数据信号写入参考电压；写入阶段，第一扫描信号及第三扫描信号低电平，第二扫描信号高电平，数据信号写入参考电压加数据电压的和；发光阶段，第一扫描信号高电平，第二扫描信号及第三扫描信号低电平，数据信号写入参考电压。
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112599091A (zh) * 2020-12-29 2021-04-02 福建华佳彩有限公司 一种补偿电路及驱动方法
CN113012639A (zh) * 2021-02-25 2021-06-22 福建华佳彩有限公司 一种像素补偿电路及驱动方法
CN114822403A (zh) * 2022-04-08 2022-07-29 福建华佳彩有限公司 一种像素结构的内部补偿电路及其控制方法
CN114927098A (zh) * 2022-05-07 2022-08-19 重庆邮电大学 一种像素驱动电路及像素驱动方法
CN115331629A (zh) * 2022-08-30 2022-11-11 惠科股份有限公司 像素电路和像素驱动方法

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005309422A (ja) * 2004-03-26 2005-11-04 Seiko Epson Corp 画素回路の駆動方法、画素回路、電気光学装置および電子機器
CN104064149A (zh) * 2014-07-07 2014-09-24 深圳市华星光电技术有限公司 像素电路、具备该像素电路的显示面板和显示器
CN105096817A (zh) * 2014-05-27 2015-11-25 北京大学深圳研究生院 像素电路及其驱动方法和一种显示装置
US20160300531A1 (en) * 2014-06-18 2016-10-13 Boe Technology Group Co., Ltd. Pixel circuit and display apparatus
CN107301845A (zh) * 2017-08-23 2017-10-27 深圳市华星光电半导体显示技术有限公司 像素驱动电路及其驱动方法
WO2019033512A1 (zh) * 2017-08-18 2019-02-21 深圳市华星光电半导体显示技术有限公司 用于oled显示设备的像素驱动电路、oled显示设备
CN110379369A (zh) * 2019-05-27 2019-10-25 福建华佳彩有限公司 一种像素补偿电路及驱动方法
CN211376152U (zh) * 2020-02-28 2020-08-28 福建华佳彩有限公司 一种像素补偿电路

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005309422A (ja) * 2004-03-26 2005-11-04 Seiko Epson Corp 画素回路の駆動方法、画素回路、電気光学装置および電子機器
CN105096817A (zh) * 2014-05-27 2015-11-25 北京大学深圳研究生院 像素电路及其驱动方法和一种显示装置
US20160300531A1 (en) * 2014-06-18 2016-10-13 Boe Technology Group Co., Ltd. Pixel circuit and display apparatus
CN104064149A (zh) * 2014-07-07 2014-09-24 深圳市华星光电技术有限公司 像素电路、具备该像素电路的显示面板和显示器
WO2019033512A1 (zh) * 2017-08-18 2019-02-21 深圳市华星光电半导体显示技术有限公司 用于oled显示设备的像素驱动电路、oled显示设备
CN107301845A (zh) * 2017-08-23 2017-10-27 深圳市华星光电半导体显示技术有限公司 像素驱动电路及其驱动方法
CN110379369A (zh) * 2019-05-27 2019-10-25 福建华佳彩有限公司 一种像素补偿电路及驱动方法
CN211376152U (zh) * 2020-02-28 2020-08-28 福建华佳彩有限公司 一种像素补偿电路

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112599091A (zh) * 2020-12-29 2021-04-02 福建华佳彩有限公司 一种补偿电路及驱动方法
CN113012639A (zh) * 2021-02-25 2021-06-22 福建华佳彩有限公司 一种像素补偿电路及驱动方法
CN114822403A (zh) * 2022-04-08 2022-07-29 福建华佳彩有限公司 一种像素结构的内部补偿电路及其控制方法
CN114927098A (zh) * 2022-05-07 2022-08-19 重庆邮电大学 一种像素驱动电路及像素驱动方法
CN114927098B (zh) * 2022-05-07 2024-04-19 重庆邮电大学 一种像素驱动电路及像素驱动方法
CN115331629A (zh) * 2022-08-30 2022-11-11 惠科股份有限公司 像素电路和像素驱动方法
US11961482B2 (en) 2022-08-30 2024-04-16 HKC Corporation Limited Pixel circuit having a reset sub-circuit for resetting a plurality of sub-pixels and driving method thereof

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