发明名称 |
LIGHT GUIDE TOUCH SCREEN |
摘要 |
The present invention relates to a display device with a detection system for detecting an input position on a screen (301) of the display. A light guide (302) is arranged adjacent to the screen (301). The light guide (302) has a light source (308) arranged to emit light (310) into the light guide (302). The optical matching between the light guide (302) and its surroundings is adapted such that the light (310) of the light source (308) is normally confined within the light guide (302) by means of total internal reflection. However, a user establishing physical contact with the light guide (302) perturbs the state of total internal reflection, and light (310) will be extracted from the light guide (302). In the display device, light detecting means (303) are arranged to detect said light (310) and relate this detection to an input position where the user contact occurred. The display is preferably an LCD, O-LED or P-LED type display. |
申请公布号 |
WO2005029394(A2) |
申请公布日期 |
2005.03.31 |
申请号 |
WO2004IB51747 |
申请日期 |
2004.09.14 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V.;LANGE, RUEDIGER, J.;SCHOELLMANN, VOLKER |
发明人 |
LANGE, RUEDIGER, J.;SCHOELLMANN, VOLKER |
分类号 |
F21V8/00;G06F3/033;G06F3/042 |
主分类号 |
F21V8/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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