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Proceedings Paper

Design of multilayer light guide films for multifunctional keypad
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Paper Abstract

Multilayer light guide films(MLGF) with LED lighting for multifunctional display has been proposed. Based on the MLGF technology, keys can be illuminated separately on different mode. The fabrication process similar to LIGA technology including laser etching, electroforming and hot nanoimprinting is developed. The depth of the light guide dots can be controlled by laser pulse numbers and the influence of dots depth to the luminance uniformity is simulated. The MLGF sample composed of 2 layers is designed and fabricated, the total thickness the module is about 0.4mm and the depth of light guide dots ranges from 0.5 um to 10um.The optical performances testing results are given. MLGF provides an ultrathin solution for multifunctional keypad and the fabrication process is high throughput, low cost for large area light guide films.

Paper Details

Date Published: 15 November 2010
PDF: 9 pages
Proc. SPIE 7852, LED and Display Technologies, 785204 (15 November 2010); doi: 10.1117/12.870617
Show Author Affiliations
Xiaohong Zhou, Suzhou Univ. (China)
Zongbao Fang, Suzhou Univ. (China)
Heng Zhang, Suzhou Univ. (China)
Linsen Chen, Suzhou Univ. (China)

Published in SPIE Proceedings Vol. 7852:
LED and Display Technologies
Gang Yu; Yanbing Hou, Editor(s)

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