Key switch arrangement

A switch and key technology, applied in the field of key switch construction, can solve the problems of increased cost, difficult installation of a personal computer, difficult keyboard replacement, increased keyboard height, etc., and achieves the effect of increasing the cost.
CN101414520AActive Publication Date: 2009-04-22JIANGSU TRANSIMAGE TECH CO LTD
1 Cites 5 Cited by

Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGSU TRANSIMAGE TECH CO LTD
Publication Date
2009-04-22

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

A key switch arrangement is able to accomplish the compatibility with a normal keyboard in respect of profile without increasing the height of the keyboard and reduce the cost without adding new members for a light source. The key switch arrangement includes a key-top having an optically transparent key-top having a cutout letter part formed thereon, an optically transparent membrane sheet having a contact, an optically transparent plate member arranged under the membrane sheet, a cutting hole is formed on the plate member and an LED as a light source is downwards arranged in the membrane sheet. The light source emits light to pass the plate member and the membrane sheet to illuminate the cutout letter part on the key-top.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a key switch structure of a keyboard device used as an input device in an information processing device, a measurement device, a medical device, etc., especially a key switch structure with an illumination function that can ensure good operability even in a dark environment. Background technique

[0002] People have been devoting themselves to the development of a keyboard device that can ensure good operability even in a relatively dark environment. Such a keyboard generally has the following structure, that is, there are keys constituting key switches printed with letters or symbols, etc. In addition to caps, link members, horn drums, diaphragms with contact points, and base plates, there are also substrates or light guide plates on which light sources for illuminating the keyboard, such as EL light emitting parts and LEDs, are arranged corresponding to each key switch . As a prior art disclosing a key switch that uses an EL...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More