Backlight collimating system for LCDs realized by GRIN-rod array

Qing Li; Xuping Zhang; Lihui Wu

doi:10.1117/12.319686

18 August 1998 Backlight collimating system for LCDs realized by GRIN-rod array

Qing Li, Xuping Zhang, Lihui Wu

Proceedings Volume 3560, Display Devices and Systems II; (1998) https://doi.org/10.1117/12.319686
Event: Photonics China '98, 1998, Beijing, China

Abstract

The collimating system of backlight is required to improve the LCD's viewing angle. This paper presents a method of realizing the collimating of LCD backlight with graded- refractive-index-rod microarray on the outer of device. The optical principle and the effect of material and structure parameters on collimating properties are investigated in theory. The results of calculation and preliminary experiment are given. Collimating light with its diffuse angle lower than +/- 10 degree(s) and small chromatism is obtained.

Citation Download Citation

Qing Li, Xuping Zhang, and Lihui Wu "Backlight collimating system for LCDs realized by GRIN-rod array", Proc. SPIE 3560, Display Devices and Systems II, (18 August 1998); https://doi.org/10.1117/12.319686

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