An analytical model for instant design of an LCD cell with photospacers under gravity and local loading

作者：Ding Ling Yi^*; Shih Wen Pin; Lin Mao Hsing; Hu Yuh Chung; Chang Pei Zen

来源：Journal of the Society for Information Display, 2012, 20(3): 148-155.

DOI：10.1889/JSID20.3.148

• Liquid-crystal display
• gap mura
• photospacer
• Winkler Foundation

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.

• 出版日期2012-3