发明名称 |
DISPLAY DEVICE WITH PHOTOSENSOR |
摘要 |
<p>A liquid crystal panel with built-in sensors 11 includes, in a pixel array 17, a plurality of pixel circuits 1 and a plurality of optical sensors 2 which are arranged two-dimensionally. Infrared light transmitting filters 3 that allow infrared light to pass therethrough and cut off visible light are provided in respective paths of light entering the optical sensors 2. A backlight 15 including white LEDs 4 and infrared LEDs 5 is provided on a back surface of the liquid crystal panel 11. With this, reflected light of backlight light including infrared light is detected by the optical sensors 2 without receiving the influence of visible light, and thus a touch position is detected with high accuracy, irrespective of display data.</p> |
申请公布号 |
EP2249201(A1) |
申请公布日期 |
2010.11.10 |
申请号 |
EP20090717929 |
申请日期 |
2009.02.16 |
申请人 |
SHARP KABUSHIKI KAISHA |
发明人 |
FUJIOKA, AKIZUMI;GOTOH, TOSHIMITSU;KUBOTA, AKINORI;UEHATA, MASAKI |
分类号 |
G02F1/1368;G02F1/133;G02F1/1335;G02F1/1345;G09F9/00;G09F9/30 |
主分类号 |
G02F1/1368 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|