公开(公告)号：US09390652B2

公开(公告)日：2016-07-12

申请号：US14584050

申请日：2014-12-29

Applicant: LG Display Co., Ltd.

Inventor： Min Kyu Chang ,  Jong Sik Shim ,  Shinji Takasugi

IPC: G09G5/10 ,  G09G3/32

CPC classification number: G09G3/3233 ,  G09G3/3291 ,  G09G2300/0417 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2310/0262 ,  G09G2320/0233 ,  G09G2320/0285 ,  G09G2320/0295 ,  G09G2320/043

Abstract: Disclosed is an organic light emitting display device including a pixel connected to a data line, a gate line group, and a reference line. The pixel includes an organic light emitting diode (OLED), a driving transistor configured to control a current flowing in the OLED, a first switching transistor configured to selectively supply a data voltage to a first node, a second switching transistor configured to selectively supply an initial voltage to a second node, a third switching transistor configured to selectively connect a third node to the reference line, a fourth switching transistor configured to selectively connect the first node to the third node, a first capacitor connected between the first and second nodes to store a threshold voltage of the driving transistor, and a second capacitor connected between the first and third nodes to store the data voltage supplied through the first switching transistor.

Abstract translation: 公开了一种包括连接到数据线，栅极线组和参考线的像素的有机发光显示装置。 像素包括有机发光二极管（OLED），被配置为控制在OLED中流动的电流的驱动晶体管，被配置为选择性地向第一节点提供数据电压的第一开关晶体管，被配置为选择性地提供 初始电压到第二节点，第三开关晶体管，被配置为选择性地将第三节点连接到参考线;第四开关晶体管，被配置为选择性地将第一节点连接到第三节点;第一电容器，连接在第一和第二节点之间， 存储驱动晶体管的阈值电压，以及连接在第一和第三节点之间的第二电容器，以存储通过第一开关晶体管提供的数据电压。

公开(公告)号：US20150379939A1

公开(公告)日：2015-12-31

申请号：US14748488

申请日：2015-06-24

Applicant: LG Display Co., Ltd.

Inventor： Shinji Takasugi ,  Hae Yoon Kang ,  Mi Hee Uhm

IPC: G09G3/32 ,  G09G5/02 ,  G09G5/18 ,  G09G5/10

CPC classification number: G09G5/18 ,  G09G3/3233 ,  G09G2300/0452 ,  G09G2300/0842 ,  G09G2320/0295 ,  G09G2320/043 ,  G09G2340/0457

Abstract: The present application relates to a display apparatus having a panel including sub-pixels, data lines, and horizontal lines; a sensing circuit to collect sensing data by sensing for external compensation in the horizontal lines; a calculator to determine a characteristic change of each of the sub-pixels using the sensing data to calculate an external compensation value; a data aligner to receive input image data, and when the input image data corresponds to a horizontal line where the sensing is performed, to convert the input image data into compensation image data based on a compensation value; and a data driver to output a compensation data voltage corresponding to the compensation image data to a data line corresponding to the sensed horizontal line before and after the sensing is performed, and output a sensing data voltage to the data line while the sensing is performed.

Abstract translation: 本申请涉及具有包括子像素，数据线和水平线的面板的显示设备; 感测电路，用于通过感测水平线中的外部补偿来收集感测数据; 计算器，用于使用所述感测数据确定每个子像素的特征变化，以计算外部补偿值; 用于接收输入图像数据的数据对准器，并且当输入图像数据对应于执行感测的水平线时，基于补偿值将输入图像数据转换成补偿图像数据; 以及数据驱动器，用于在执行感测之前和之后将与补偿图像数据相对应的补偿数据电压输出到与检测到的水平线相对应的数据线，并且在执行感测时将感测数据电压输出到数据线。