Invention Grant
- Patent Title: Light guide display with multiple light guide layers
- Patent Title (中): 具有多个导光层的导光板显示
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Application No.: US12429972Application Date: 2009-04-24
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Publication No.: US08172444B2Publication Date: 2012-05-08
- Inventor: Chuan Hoe Chan , Sian Tatt Lee , Choon Guan Ko , Fook Chuin Ng
- Applicant: Chuan Hoe Chan , Sian Tatt Lee , Choon Guan Ko , Fook Chuin Ng
- Applicant Address: SG Singapore
- Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
- Current Assignee: Avago Technologies ECBU IP (Singapore) Pte. Ltd.
- Current Assignee Address: SG Singapore
- Main IPC: F21V7/04
- IPC: F21V7/04

Abstract:
A light guide display includes a printed overlay layer, a first light guide layer, and a second light guide layer. The printed overlay layer includes an input region with a symbol that is at least partially translucent. The first light guide layer is disposed on a back side of the printed overlay layer to illuminate the symbol of the printed overlay layer in response to illumination of the first light guide layer. The second light guide layer is disposed on a front side of the printed overlay layer, opposite the first light guide layer. The second light guide layer includes a separate symbol that is distinct from the symbol of the printed overlay layer. The second light guide layer illuminates the separate symbol of the second light guide layer in response to illumination of the second light guide layer.
Public/Granted literature
- US20100271839A1 LIGHT GUIDE DISPLAY WITH MULITPLE LIGHT GUIDE LAYERS Public/Granted day:2010-10-28
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