Share Email Print
cover

Proceedings Paper

Thermal stress analysis of laminated LCDs for aircraft cockpits
Author(s): Qibin Feng; Yikui Hua; Guoqiang Lv; Xiaosong Lu
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Different from common liquid crystal displays (LCDs), LCDs in aircraft cockpits have to satisfy some special requirements, including high luminance, high contrast ration, anti-reflection (AR), and electromagnetic compatibility (EMC). Indium-tin oxide (ITO) glasses are usually attached on the top surface of LC cells by optical adhesive for AR and EMC, forming laminated structure. The characteristics of optical adhesive and lamination processing have direct effects on display. This paper creates a finite-element-analysis model of the laminated LC cell with ITO glass. The simulation results show that the stress concentration happens in the case that there are defects (bubbles, cracks, nonuniform thickness) in the optical adhesive when the operation temperature raises to 70º C. Based on the analysis of the stress on the top surface of the LC cell in Y direction, it is found that the location of the stress concentration is just under where the defects exit. The comparison on the stress of 3 possible defects shows that the concentrated stress caused by the cracks are far more large than the stress by the bubbles and nonuniform thickness of optical adhesives, which should try best to avoid.

Paper Details

Date Published: 15 October 2012
PDF: 5 pages
Proc. SPIE 8418, 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Design, Manufacturing, and Testing of Smart Structures, Micro- and Nano-Optical Devices, and Systems, 84181T (15 October 2012); doi: 10.1117/12.977633
Show Author Affiliations
Qibin Feng, Hefei Univ. of Technology (China)
Yikui Hua, Hefei Univ. of Technology (China)
Guoqiang Lv, Hefei Univ. of Technology (China)
Xiaosong Lu, AVIC Huadong Photoelectric Co. Ltd (China)


Published in SPIE Proceedings Vol. 8418:
6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Design, Manufacturing, and Testing of Smart Structures, Micro- and Nano-Optical Devices, and Systems
Tianchun Ye; Song Hu; Yanqiu Li; Xiangang Luo; Xiaoyi Bao, Editor(s)

© SPIE. Terms of Use
Back to Top