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1. (WO2018201541) ORGANIC LIGHT EMITTING PANEL STARTING-UP BRIGHTNESS CONTROL METHOD

Pub. No.:    WO/2018/201541    International Application No.:    PCT/CN2017/086231
Publication Date: Fri Nov 09 00:59:59 CET 2018 International Filing Date: Sun May 28 01:59:59 CEST 2017
IPC: G09G 3/32
Applicants: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
深圳市华星光电半导体显示技术有限公司
Inventors: WANG, Zhenling
王振岭
HWANG, Tai-jiun
黄泰钧
Title: ORGANIC LIGHT EMITTING PANEL STARTING-UP BRIGHTNESS CONTROL METHOD
Abstract:
The invention discloses a starting-up brightness control method for an organic light emitting panel. The method comprises the following steps: acquiring a displaying brightness corresponding to each pixel in a starting-up process; comparing the displaying brightness of each pixel with a preset brightness threshold value; if the displaying brightness is greater than the brightness threshold value, adjusting the displaying brightness to be smaller than or equal to the brightness threshold value; adjusting a displaying grayscale value of the pixel by using the adjusted displaying brightness; using the adjusted displaying grayscale value to control the corresponding pixel to display; and gradually increasing the brightness threshold with time, and returns to obtain the displayed brightness corresponding to each pixel during the starting-up process. In this way, the ghost rate of the panel caused by excessive voltage offset during starting up can be reduced and excessive aging speed of a panel device caused by excessive local current is reduced.