发明授权
- 专利标题: Touch panel device
- 专利标题(中): 触摸屏设备
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申请号: US10055375申请日: 2002-01-25
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公开(公告)号: US06768484B2公开(公告)日: 2004-07-27
- 发明人: Satoshi Sano , Takashi Katsuki , Yuji Takahashi , Fumihiko Nakazawa
- 申请人: Satoshi Sano , Takashi Katsuki , Yuji Takahashi , Fumihiko Nakazawa
- 优先权: JP2001-325328 20011023
- 主分类号: G09G500
- IPC分类号: G09G500
摘要:
In a touch panel device for detecting a position touched by an object by sensing an attenuation or break of surface acoustic waves, in which IDTs for exciting or receiving surface acoustic waves comprising comb-like electrode fingers aligned along confronting bus electrodes are placed on a peripheral area of a substrate, drawing electrodes connected to the bus electrode positioned closer to the center of the substrate and led out to the peripheral area side of the substrate are provided. Each of the IDT regions segmented by the drawing electrodes is constituted by repetition, and the drawing electrodes are disposed so that impedance in each IDT region becomes equal.
公开/授权文献
- US20030076308A1 Touch panel device 公开/授权日:2003-04-24