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1. (WO2018176746) DISPLAY DRIVING DEVICE AND METHOD, AND DISPLAY PANEL

Pub. No.:    WO/2018/176746    International Application No.:    PCT/CN2017/102274
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Wed Sep 20 01:59:59 CEST 2017
IPC: G09G 3/36
G09G 3/20
Applicants: BOE TECHNOLOGY GROUP CO., LTD.
CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
Inventors: BAI, Wangjing
HSU, Yihjen
Title: DISPLAY DRIVING DEVICE AND METHOD, AND DISPLAY PANEL
Abstract:
A display driving device is provided, which includes a detecting circuit, a comparing circuit coupled to the detecting circuit, and a timing control circuit coupled to the comparing circuit. The detecting circuit detects, and sends to the comparing circuit, a common voltage from each of a plurality of regions in the display panel. The comparing circuit compares the common voltage with a reference voltage and determines whether it is normal. Based on the determination result from the comparing circuit, the timing control circuit adjusts a data voltage of a region having an abnormal common voltage so as to allow a positive data voltage and a negative data voltage of the region to be symmetrical to the common voltage of the region. A display driving method based on the display driving device and a display apparatus having the display driving device are also disclosed.