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Optical detection device, display device and electronic equipment

A detection device, an optical technology, applied in the direction of using optical devices, measuring devices, electrical digital data processing, etc., can solve problems such as large systems

Inactive Publication Date: 2011-12-07
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this position detection device has problems such as a large system.

Method used

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  • Optical detection device, display device and electronic equipment
  • Optical detection device, display device and electronic equipment
  • Optical detection device, display device and electronic equipment

Examples

Experimental program
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Embodiment Construction

[0049] Hereinafter, the best mode for carrying out the present invention will be described in detail. In addition, the present embodiment described below does not unduly limit the content of the present invention described in the scope of the claims, and all the configurations described in the present embodiment do not necessarily serve as solution means of the present invention.

[0050] 1. Basic composition

[0051] figure 1 (A), figure 1 (B) shows an example of the basic configuration of the optical detection device of this embodiment and a display device or electronic device using the optical detection device. figure 1 (A), figure 1 (B) is an example in which the optical detection device of this embodiment is applied to a liquid crystal projector or a projection-type display device (projector) called a digital micromirror device. exist figure 1 (A), figure 1 In (B), let the mutually intersecting axes be an X axis, a Y axis, and a Z axis (1st, 2nd, and 3rd coordinate ...

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PUM

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Abstract

An optical detection device includes: a light source unit that emits source light; a curve-shaped light guide, that includes a light incident surface, to which the source light is incident, located in an end portion of the light guide and a convex surface from which the source light incident from the light incident surface is output; an irradiation direction setting unit that receives the source light output from the convex surface of the light guide and sets an irradiation direction of irradiation light to a direction of a normal line of the convex surface; a slight receiving unit that receives reflection light acquired by reflecting the irradiation light on an object; and a detection unit that detects at least a direction in which the object is located based on a result of the light reception in the light receiving unit.

Description

technical field [0001] The present invention relates to an optical detection device, a display device, electronic equipment and the like. Background technique [0002] In recent years, display devices with a position detection function in which a touch panel is arranged on the front of a display unit have been used in electronic equipment such as mobile phones, personal computers, car navigation devices, ticket vending machines, and bank terminals. According to this display device, the user can input information by clicking an icon or the like of the displayed image while referring to the image displayed on the display unit. As a position detection method using such a touch panel, for example, a resistive film method or an electrostatic capacitance method is known. [0003] On the other hand, a projection type display device (projector) or a display device for digital signage has a larger display area than a display device of a mobile phone or a personal computer. Therefor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/042
CPCG06F3/0428G06F3/0304G06F3/0354G01B11/03
Inventor 大西康宪
Owner SEIKO EPSON CORP