A directional backlight with narrow angular luminance distribution for widening the viewing angle for an LCD with a front-surface light-scattering film

被引：39

作者：

Kaelaentaer, Kaelil ^{[1
]}

机构：

[1] Global Opt Solut, R&D Ctr, Hachioji, Tokyo 1930832, Japan

来源：

JOURNAL OF THE SOCIETY FOR INFORMATION DISPLAY | 2012年 / 20卷 / 03期

关键词：

Directional BLU; optically integrated light guide; A-grove; optical microstructure; V-groove; U-groove;

D O I：

10.1889/JSID20.3.133

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A directional backlight unit has been developed to widen the viewing angle of a TN-LCD with a front-surface light-scattering film/layer. The novel directional backlight has a diagonal of 34 cm and is structured by light-direction-control optical micro-features and an inverted prism film. The backlight has a symmetrical round luminance cone of +/- 9 degrees and a uniform spatial distribution of 88%. By using this backlight unit in combination with an LCD, the narrow cone resulted in widening of the TN-LCD's viewing angle up to 120 degrees at full width at half-maximum.

引用

页码：133 / 142

页数：10

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