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Light guide sheet, movable contact structure using the light guide sheet, method of manufacturing the movable contact structure, and switch using the light guide sheet and the movable contact structur

A technology of light guide body and light guide sheet, which is applied in the direction of electric switch, optics, light guide, etc., can solve the problems that are difficult to realize, and achieve the effect of simple composition

Inactive Publication Date: 2013-07-17
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a problem that it is difficult to realize various lighting such as making the dial button 55 and the operation button 56 emit light at different timings.

Method used

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  • Light guide sheet, movable contact structure using the light guide sheet, method of manufacturing the movable contact structure, and switch using the light guide sheet and the movable contact structur
  • Light guide sheet, movable contact structure using the light guide sheet, method of manufacturing the movable contact structure, and switch using the light guide sheet and the movable contact structur
  • Light guide sheet, movable contact structure using the light guide sheet, method of manufacturing the movable contact structure, and switch using the light guide sheet and the movable contact structur

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0045] figure 1 It is a cross-sectional view of a switch using the light guide sheet of the first embodiment of the present invention, figure 2 It is a perspective view of the light guide sheet of Embodiment 1 of this invention.

[0046] figure 1 with figure 2 Here, the light guide sheet 35 includes an insulating first light guide 21 and a second light guide 22 made of polyethylene terephthalate, polycarbonate, polyurethane, siloxane, or the like. In addition, the slit 24 is provided so that the first light guide 21 and the second light guide 22 are not connected.

[0047] Here, on the upper surface of the first light guide 21 and the second light guide 22 are provided a plurality of light-emitting portions 23 composed of dot-shaped concavities and convexities formed by printing ink (ink), etc., and a plurality of light-emitting portions 23 composed of the same dots. The attenuation part 25 is formed of unevenness. The attenuation portion 25 and the slit 24 constitute a light ...

Embodiment approach 2

[0077] Figure 4 It is a cross-sectional view of a switch using the light guide sheet of Embodiment 2 of the present invention. Such as Figure 4 As shown, the light guide sheet 65 includes a first light guide 61 and a second light guide 62 made of polyethylene terephthalate, polycarbonate, polyurethane, siloxane, or the like. In addition, the first light guide 61 and the second light guide 62 are provided with the light-emitting portion 23 composed of dot-shaped concavities and convexities on the upper surface, which is the same as the case of the first embodiment.

[0078] In addition, as in the first embodiment, the movable contact body 66 includes a film-shaped substrate 2 and a substantially dome-shaped movable contact 3 formed of a conductive metal thin plate. Here, the film-shaped base sheet 2 is attached to the lower surface of the light guide sheet 65 at a predetermined portion of the outer periphery by an adhesive (not shown). In addition, the movable contact 3 is atta...

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PUM

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Abstract

The present invention relates to a light guide sheet, a movable contact structure using the light guide sheet, a method of manufacturing the movable contact structure, and switch using the light guide sheet. A slit is provided between a first light guide body and a second light guide body, and an attenuation part which has unevenness formed by print and is provided near end sides of the first light guide body and the second light guide body, such that the light shielding part comprising the slit and the attenuation part, can prevent light from being transmitted between the first light guide body and the second light guide body, it is possible to illuminate the illumination parts of the first and second light guide bodies at different timings without the illumination part of one light guide body being illuminated with light leaked from the other light guide body.

Description

Technical field [0001] The present invention relates to light guide sheets, movable contact bodies and switches used in various electronic devices. Background technique [0002] In recent years, in various electronic devices, particularly portable terminal devices such as mobile phones, there has been an increase in the technology of illuminating the operating unit in order to facilitate the operation of buttons and the like even in dark surroundings. At the same time, in order to convey information such as the caller to the user of the device, a light guide sheet capable of various lighting, a movable contact body using such a light guide sheet, and the like are required. [0003] use Picture 9 with Picture 10 A description will be given of such a conventional switch. [0004] In order to facilitate the understanding of the configuration, the cross-sectional views in these drawings are shown with an enlarged dimension in the thickness direction. [0005] Picture 9 It is a cross-sec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21V8/00F21V11/00H01H13/00H01H13/70
Inventor 立畠直树相阪勉濑良直树近久阳介
Owner PANASONIC CORP