发明公开
EP1988332A1 Dual film light guide for illuminating displays
审中-公开
DoppelfilmlichichiterfürBeleuchtungsanzeigen
- 专利标题: Dual film light guide for illuminating displays
- 专利标题(中): DoppelfilmlichichiterfürBeleuchtungsanzeigen
-
申请号: EP08153436.4申请日: 2008-03-27
-
公开(公告)号: EP1988332A1公开(公告)日: 2008-11-05
- 发明人: Sampsell, Jeffrey Brian , Gruhlke, Russell, Wayne , Mienko, Marek , Xu, Gang , Bita, Ion
- 申请人: Qualcomm Mems Technologies, Inc.
- 申请人地址: 5775 Morehouse Drive San Diego, CA 92121 US
- 专利权人: Qualcomm Mems Technologies, Inc.
- 当前专利权人: Qualcomm Mems Technologies, Inc.
- 当前专利权人地址: 5775 Morehouse Drive San Diego, CA 92121 US
- 代理机构: Witte, Weller & Partner
- 优先权: US742299 20070430
- 主分类号: F21V8/00
- IPC分类号: F21V8/00
摘要:
A front light guide panel including a plurality of embedded surface features is provided. The front light panel is configured to deliver uniform illumination from an artificial light source disposed at one side of the font light panel to an array of display elements located behind the front light guide while allowing for the option of illumination from ambient lighting transmitted through the light guide panel. The surface embedded surface relief features create air pockets within the light guide panel. Light incident on the side surface of the light guide propagates though the light guide until it strikes an air/light material guide interface at one on the air pockets. The light is then turned by total internal reflection through a large angle such that it exits an output face disposed in front of the array of display elements.
信息查询