TOUCH PANEL, LIQUID CRYSTAL PANEL, LIQUID CRYSTAL DISPLAY DEVICE, AND TOUCH PANEL-INTEGRATED LIQUID CRYSTAL DISPLAY DEVICE
First Claim
1. A touch panel comprising:
- an infrared light transmitting material through which infrared light is transmitted and which has a surface being used as a touch surface, the touch surface being touched by a detection subject;
infrared light sensors including a plurality of infrared light receiving elements provided below a touch region of the infrared light transmitting material, the touch region being touched by the detection subject; and
a plurality of infrared light sources provided in an outside of the touch region of the infrared light transmitting material, the plurality of infrared light sources being configured to emit infrared light along said surface of the infrared light transmitting material such that an entire circumference of the detection subject touching the touch surface is irradiated with the infrared light,the touch panel detecting a position touched by the detection subject in such a manner that at least one of the infrared light sensors receives, among infrared light emitted by the infrared light sources along said surface of the infrared light transmitting material, infrared light which is reflected by the detection subject and is transmitted through the infrared light transmitting material.
1 Assignment
0 Petitions
Accused Products
Abstract
A touch panel includes: an infrared light transmitting material through which infrared light is transmitted and which has a surface as a touch surface (20) touched by a detection subject; area sensors (3) including photo sensor elements (4) below a touch region, which is touched by the detection subject, of the infrared light transmitting material; and infrared light sources (1) provided outside the touch region, the infrared light sources (1) emitting infrared light along said surface of the infrared light transmitting material such that an entire circumference of the detection subject touching the touch surface (20) is irradiated with the infrared light, the touch panel detecting a position touched by the detection subject so that the photo sensor element (4) receives, among infrared light emitted by the infrared light sources (1) along said surface, infrared light reflected by the detection subject and transmitted through the infrared light transmitting material.
57 Citations
12 Claims
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1. A touch panel comprising:
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an infrared light transmitting material through which infrared light is transmitted and which has a surface being used as a touch surface, the touch surface being touched by a detection subject; infrared light sensors including a plurality of infrared light receiving elements provided below a touch region of the infrared light transmitting material, the touch region being touched by the detection subject; and a plurality of infrared light sources provided in an outside of the touch region of the infrared light transmitting material, the plurality of infrared light sources being configured to emit infrared light along said surface of the infrared light transmitting material such that an entire circumference of the detection subject touching the touch surface is irradiated with the infrared light, the touch panel detecting a position touched by the detection subject in such a manner that at least one of the infrared light sensors receives, among infrared light emitted by the infrared light sources along said surface of the infrared light transmitting material, infrared light which is reflected by the detection subject and is transmitted through the infrared light transmitting material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification