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An analytical model for instant design of an LCD cell with photospacers under gravity and local loading
Author(s) -
Ding LingYi,
Shih WenPin,
Lin MaoHsing,
Hu YuhChung,
Chang PeiZen
Publication year - 2012
Publication title -
journal of the society for information display
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 52
eISSN - 1938-3657
pISSN - 1071-0922
DOI - 10.1889/jsid20.3.148
Subject(s) - instant , mura , computer science , liquid crystal display , reliability (semiconductor) , deformation (meteorology) , simulation , materials science , physics , power (physics) , composite material , operating system , quantum mechanics
Abstract— An analytical model of an LCD cell under gravity and local loading to prevent permanent deformation of the photospacers and the occurrence of gap mura will be presented. The analytical model is established from the Winkler model, which is composed of a beam and a series of springs. The analytical solutions have been simplified under specific assumptions and modified through three‐dimensional simulations in order to improve their accuracy. Therefore, the analytical model can be applied to the design of an in‐cell touch panel while considering the local loading due to touch or probe testing and contact conditions of photospacers. This analytical model can be used to provide instant design criteria for photospacers without considerable simulation and experimental data and to enhance the reliability of the LCD cell structure.