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Keypad assembly

A keyboard component and keyboard technology, which is applied to electrical components, optical components, instruments, etc., can solve the problem of large thickness of the keyboard component

Inactive Publication Date: 2008-05-07
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this approach will result in a thicker keyboard assembly

Method used

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Embodiment Construction

[0025] Hereinafter, several aspects of the present invention are described with reference to the accompanying drawings. In the following description of the present invention, since well-known functions and structures incorporated herein may obscure the subject matter of the present invention, a detailed description thereof is omitted. In addition, for the sake of brevity and clarity, detailed descriptions of similar components and structures of the present invention will not be repeated.

[0026] Figures 2A to 2D illustrate a keyboard assembly according to a first aspect of the invention. 2A to 2D, the keyboard assembly 200 includes: a keyboard 230; a touch sensor 220 with an upper surface, the keyboard 230 is arranged on the upper surface of the touch sensor 220; a switch member (switch member) 210 is arranged under the touch sensor 220 ; the light source 202 ; and the first printed circuit board 201 .

[0027] The keypad 230 has at least one key button 231 formed on an upp...

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PUM

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Abstract

The present invention discloses a keypad assembly, including a keypad; a touch sensor having a light-guiding plate, the touch sensor being positioned beneath the keypad so as to reflect light incident on the light-guiding plate towards the keypad; and a switch member positioned beneath the touch sensor. The keypad assembly can provide rear lighting without increasing the thickness. 2 The user can easily recognize whether or not key buttons are pressed correctly and select electric contacts from the touch sensor or the switch member as desired. The keypad assembly provides the user with both menu selection buttons and information input buttons even if the keypad assembly has a small area.

Description

technical field [0001] The present invention relates to a keyboard, and more particularly, to a keyboard with a back light emitting device and a keypad assembly including the keyboard. Background technique [0002] As generally known in the art, keyboards and keyboard assemblies are widely used in home appliances and mobile communication devices because they employ simple-structured dome switches and because keyboards and keyboard assemblies have excellent reliability. input device. The dome switch type keyboard assembly enables the user to recognize the repulsive force generated from the dome switch, and to recognize whether a specific key button is pressed. [0003] The keyboard assembly has backlighting directly facing the key buttons to provide a glow to the user when using the keyboard assembly in the dark. As a backlighting device, a plurality of light sources are usually placed on the dome switch so that light is directed from the light sources onto the key buttons ...

Claims

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Application Information

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IPC IPC(8): H01H13/02H01H9/18H01H17/00H01H13/83G02B6/00H03K17/955H03K17/96G06F3/02
CPCH01H2219/044H01H2219/062H01H2219/056G06F3/041H01H9/18H01H13/807H01H2209/038H01H2219/06
Inventor 韩东均
Owner SAMSUNG ELECTRONICS CO LTD
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