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P‐47: Improvement of Image Sticking for High Standard Automotive Application
Author(s) -
Zhang Zhiyuan,
Wang Jiandong,
Dai Wenjun,
Wang Kan,
Tian Fan,
Li Xiongping
Publication year - 2019
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1002/sdtp.13202
Subject(s) - offset (computer science) , electric field , residual , automotive industry , voltage , image quality , liquid crystal display , materials science , computer science , image (mathematics) , optics , optoelectronics , electrical engineering , computer vision , physics , engineering , algorithm , aerospace engineering , quantum mechanics , programming language
As the rapid growth of LCD market, higher level of image quality is required. Image sticking is a phenomenon that a faint outline of previously displayed image remains visible on the screen as the frame is refreshed and it is an unvarying problem as the birth of LCD display. Furthermore, it has been a critical issue for high standard automotive application. In essence, the image sticking arises from the residual electric field (DC) in liquid crystal which caused by the ordered arrangement of ionic charges or dielectric polarization under the external DC offset voltage. In this paper, we will summarize the mechanism of the the residual DC voltage generation and image sticking. And an optimum Vcom setting method minimizing external DC offset voltage is introduced to improve image sticking.