Invention Grant
US09255980B2 Optical position detection device and display system with input function
有权
光学位置检测装置及具有输入功能的显示系统
- Patent Title: Optical position detection device and display system with input function
- Patent Title (中): 光学位置检测装置及具有输入功能的显示系统
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Application No.: US13493179Application Date: 2012-06-11
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Publication No.: US09255980B2Publication Date: 2016-02-09
- Inventor: Yasunori Onishi , Masaki Takahashi
- Applicant: Yasunori Onishi , Masaki Takahashi
- Applicant Address: JP
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP
- Agency: Harness, Dickey & Pierce, P.L.C.
- Priority: JP2011-145370 20110630
- Main IPC: G09G5/00
- IPC: G09G5/00 ; G01S1/72 ; G01S17/00 ; G01S17/46 ; G01S17/87 ; G01S7/481 ; G06F3/041 ; G06F3/042
Abstract:
In an optical position detection device, when emitting the detection light from the light source section, the light receiving section receives the reflected light from the target object with the first light receiving element and the second light receiving element. The first light receiving element and the second light receiving element are arranged to have the intersection angle greater than 90° and smaller than 180°, the intersection angle being formed between the normal direction with respect to the light receiving surface of the first light receiving element and the normal direction with respect to the light receiving surface of the second light receiving element.
Public/Granted literature
- US20130002535A1 OPTICAL POSITION DETECTION DEVICE AND DISPLAY SYSTEM WITH INPUT FUNCTION Public/Granted day:2013-01-03
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