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Keyboard back light device and its method

A keyboard backlight and backlight technology, applied to electrical components, electric switches, circuits, etc., can solve the problems of non-adjustable color and brightness, lack of flexibility, limited colors, etc., to increase fashion and interest, and change monotony , the effect of convenient change

Inactive Publication Date: 2006-04-26
INSPUR LG DIGITAL MOBILE COMMUNICATIONS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, at present, the backlight display colors of mobile phone keyboards are limited (there are only seven or eight kinds), and the color and brightness cannot be adjusted by themselves, lacking flexibility, and still appear monotonous and dull, which cannot meet the diverse requirements of users.

Method used

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  • Keyboard back light device and its method
  • Keyboard back light device and its method
  • Keyboard back light device and its method

Examples

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Embodiment Construction

[0039] The preferred embodiments of the present invention will be described in detail below according to the accompanying drawings.

[0040] The three main color lights obtained by decomposing white light - red, green and blue, can be mixed in different proportions to obtain almost all the color lights in nature. The original light that makes up white light and other colored light is called primary color light, so the primary color light is composed of red, green, and blue light, which is the principle of three primary colors. This embodiment is based on the principle of three primary colors, using red, green, and blue primary color backlight combinations, by adjusting the luminous intensity of the three LEDs, that is, the relative strength of the color, a variety of backlight colors can be transformed, so that users can freely Adjust the color and brightness of the keyboard backlight, change the monotony of the keyboard backlight, and increase fashion and interest.

[0041] ...

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Abstract

The invention provides a keyboard backlight device, which comprises: at least one LED on around every light point, a LED driver, a LED drive and control unit to output impulse modulation signal to control output voltage or current of LED driver and regulate brightness, and keyboard backlight set device connected to drive unit to control modulation signal. This invention changes monotonicity of keyboard backlight, increases fashion and interesting to mobile phone.

Description

technical field [0001] The invention relates to a keyboard component, in particular to a keyboard backlight device and a method thereof. Background technique [0002] When most users choose electronic products, they not only pay attention to their functions, but also the fashion and interest of the products, especially in the pursuit of color, and the backlight of the mobile terminal keyboard is an aspect of displaying product color. Mobile terminals, especially mobile phones, usually have a backlight function, so that the keyboard can be operated correctly and conveniently even in darkness or low light. Initially, the backlight of the keypad of the mobile phone was a single color, such as blue, orange, green, amber and so on. However, the backlight display of a single color has become very monotonous, and it is difficult to attract the attention of users. Therefore, in order to attract more users, a mobile phone keyboard backlight that can display several colors has appear...

Claims

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Application Information

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IPC IPC(8): H01H13/02H01H9/18H01H13/70
Inventor 杨枭
Owner INSPUR LG DIGITAL MOBILE COMMUNICATIONS CO LTD
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