Light-emitting keyboard with optical waveguide film

A luminous keyboard and optical waveguide technology, applied in the direction of light guides, optics, optical components, etc., can solve the problems of high cost, easy to generate noise and misoperation, etc., and achieve the effect of improving luminous brightness, high efficiency and high qualified rate of finished products, and uniform surface luminescence

Inactive Publication Date: 2010-04-14
HANWOOL INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] This EL-type light-emitting keyboard can provide a very uniform surface light, but it is prone to noise and thus malfunctions
In addition, the EL method requires AC components such as inverters and inductors, so it requires a certain amount of installation space and is expensive.

Method used

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  • Light-emitting keyboard with optical waveguide film
  • Light-emitting keyboard with optical waveguide film
  • Light-emitting keyboard with optical waveguide film

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Embodiment Construction

[0047] Hereinafter, the present invention will be described in detail with reference to the drawings and examples.

[0048] image 3 It is a cross-sectional view of a luminous keyboard with an optical waveguide film according to an embodiment of the present invention. As shown in the figure, the features of the luminous keyboard include: a keyboard part 10 formed with a plurality of buttons; a back layer 20, located at the lower part of the keyboard part 10, and having a plurality of upper protrusions 21 corresponding to all or a part of the above buttons; The optical waveguide film 30 is formed on the lower part of the above-mentioned back layer 20, guides the light from the light source 50 and performs surface emission, wherein the dot pattern 31 for improving the brightness is formed on the upper surface or the predetermined area of ​​the back surface of the above-mentioned optical waveguide film 30. A printed circuit board 40 may be disposed under the optical waveguide fi...

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PUM

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Abstract

The present invention relates to a luminescence keyboard with light waveguide film, which can conduct light through thin light waveguide film to form surface luminescence, so as to implement thin keyboard; to reduce the damage to light waveguide film by means of forming upper prominency on the back layer to replace traditional lower prominency, so as to improve reliability; to improve light-emitting efficiency by means of forming light-emitting graph on the prescribed area on the back layer and the upper prominency upper surface; to implement uniform surface luminescence and improve luminescence brightness of special area by means of forming light spot graph on the light waveguide film; to improve brightness and change light wavelength as well as to glow with various colors by means of setting fluorophors within the light spot graph. The present invention also provides a light spot graph preparing method with high efficiency and high finished product up-to-standard rate.

Description

technical field [0001] The invention relates to a luminous keyboard and an optical waveguide film for the luminous keyboard. Background technique [0002] figure 1 It is a perspective view of a common wireless terminal. [0003] like figure 1 As shown, a wireless terminal such as a mobile phone is composed of a liquid crystal screen 120 for displaying various usage information such as sending and receiving status, and a button with a button insertion hole for inserting a keyboard (Keypad) for generating signals and performing various functions. The keyboard part (Keypanel) 110 of 130 . [0004] There are a plurality of buttons 130 on the keyboard. The buttons 130 are formed with numbers or letters printed on the printed surface. The buttons 130 are protrudingly formed on the outside of the keyboard part 110 of the mobile phone. The user sees the numbers or letters on the printed surface and presses the desired button 130 . In order to confirm the printing surface at nig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H13/02H01H13/70H01H13/83H01H9/18G02B6/00C09K9/00
CPCH01H13/83H04M1/22
Inventor 白云浩千炳东朴寅植
Owner HANWOOL INFORMATION TECH
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