公开(公告)号：US09852695B2

公开(公告)日：2017-12-26

申请号：US14552869

申请日：2014-11-25

Applicant: LG DISPLAY CO., LTD.

Inventor： Kyoungsik Choi

IPC: G09G3/36 ,  G09G3/3266

CPC classification number: G09G3/3266 ,  G09G2310/0262 ,  G09G2320/0233 ,  G09G2340/0435 ,  G09G2360/18

Abstract: An organic light emitting diode display includes a data driving circuit which converts pixel data into a data voltage and supplies the data voltage to data lines during a data enable period, and senses changes in driving characteristics of a display panel within an extended vertical blank period, a scan driving circuit which supplies a scan pulse synchronized with the data voltage to scan lines during the data enable period, and outputs a scan pulse within the extended vertical blank period, and a timing controller which compensates for data of an input image using a compensation value determined based on the changes in the driving characteristics, transmits the compensated data to the data driving circuit, and controls operation timing of the data driving circuit and operation timing of the scan driving circuit.

公开(公告)号：US09230478B2

公开(公告)日：2016-01-05

申请号：US14055389

申请日：2013-10-16

Applicant: LG Display Co., Ltd.

Inventor： Boeon Byeon ,  Seungchan Byun ,  Kyoungsik Choi

IPC: G09G3/32

CPC classification number: G09G3/3233 ,  G09G2300/0842 ,  G09G2320/0295 ,  G09G2320/048

Abstract: Disclosed is an organic light emitting display device that displays images with uniform luminance by compensating degradation of organic light emitting diode, and a method for driving the same. The device comprises a display panel with sub-pixels, each sub-pixel having an organic light emitting diode for emitting light; a memory which stores accumulated data of each sub-pixel; and a panel driver which calculates an individual compensation gain value for each sub-pixel and a global compensation gain value for all the sub-pixels in common based on the accumulated data of sub-pixel, modulates input data for each sub-pixel through the individual compensation gain value and global compensation gain value, converts the modulated data into a data voltage, and accumulates the modulated data on the accumulated data of the corresponding sub-pixel and stores the obtained data in the memory.

Abstract translation: 公开了一种通过补偿有机发光二极管的劣化来显示具有均匀亮度的图像的有机发光显示装置及其驱动方法。 该装置包括具有子像素的显示面板，每个子像素具有用于发光的有机发光二极管; 存储器，其存储每个子像素的累积数据; 以及面板驱动器，其基于所述子像素的累积数据计算针对所有子像素的每个子像素的单独补偿增益值和全局补偿增益值，通过所述子像素的每个子像素调制输入数据 单独的补偿增益值和全局补偿增益值，将调制数据转换为数据电压，并将调制数据累加在相应子像素的累积数据上，并将获得的数据存储在存储器中。