WO2007107099A1

WO2007107099A1 - Handset keys with circular plate structure

Info

Publication number: WO2007107099A1
Application number: PCT/CN2007/000870
Authority: WO
Inventors: Xinchuan Yang
Original assignee: Jia Xing Shunon Electronics Technology Co. Ltd.
Priority date: 2006-03-21
Filing date: 2007-03-19
Publication date: 2007-09-27
Also published as: CN2899320Y

Abstract

Handset keys with circular plate structure include a circular plate structure key. There is a charge transfer inductive sheet (23) in compound materials layer (2) under the keycap (1) of the circular plate structure key, the charge transfer inductive sheet (23) leads out electrical signal through inductive sheet lead-out wire (24). Said compound materials layer (2) is compounded by a thermoplastic polyurethane piece (21) and a silicon rubber layer (22), and the charge transfer inductive sheet (23) is set between the thermoplastic polyurethane piece (21) and the silicon rubber layer (22). The handset keys with circular plate structure utilize the charge transfer inductive technology to combine the charge transfer inductive sheet with the existing handset keys with the circular plate structure, and to make a slide circular plate in the keypad. When a finger moves circularly around the circular plate, the communication list or items of songs can scroll under the control by software, and it is possible to use the inductive sheet to choose data quickly while serving as a key. This structure can not only be used in the handset keys, but also used in the other electronic products.

Description

Mobile phone button with disc structure

Technical field

The present invention relates to a push button switch, and more particularly to a new mobile phone button and disc structure.

At present, the following structure is usually adopted in the mobile phone keyboard: the lower half of the button uses 12 buttons of the nine-square grid, and the upper half is a disc that defines the up and down, left and right four direction keys, and the circumference of the disc is matched with several Function keys. When you need to find a dialing object, you need to constantly press the direction button in the address book to find it. The same is true for selecting a song in an MP3-enabled mobile phone. It is very troublesome to use. The structure shown in FIG. 1 and FIG. 2 is connected to each of the keycaps 1 by using a composite material 2 composed of a thermoplastic polyurethane (TPU) sheet 21 and a silicone rubber layer 22 under the key button 1 of the mobile phone. Together, the force on the keycap is transmitted to the metal dome 3 to complete the switching action.

In the prior art, there is another touch switch which utilizes charge transfer sensing technology to achieve continuous increase and decrease control by designing and integrating charge transfer sensing points. Disclosure of invention

SUMMARY OF THE INVENTION An object of the present invention is to provide a new mobile phone button and disc structure which can be used for quick data selection while being used as a button, in order to solve the above-mentioned deficiencies.

In order to achieve the above object, the present invention provides a new mobile phone button and disc structure, which comprises a disc structure key, and a charge transfer sensing sheet is arranged in a composite material layer under the button key cap of the disc structure key. The charge transfer sensor strips the electrical signal through the inductor lead. The composite material layer is a composite of a thermoplastic polyurethane sheet and a silicone rubber layer, and the charge transfer sensing sheet may be disposed between the thermoplastic polyurethane sheet and the silicone rubber layer.

The invention provides a new mobile phone button and disc structure, which utilizes charge transfer sensing technology to combine the charge transfer sensing sheet with the existing mobile phone key disc structure, and is integrated in appearance. However, a charge disc sensing technique can be used to make a sliding disc in the button area. When the finger is moving around the circumference of the disk, the control of the software can cause the address book or track to roll, so that it is used as a button

Confirmation At the same time, the sensor can be used for quick data selection. This structure can be applied to other electronic products in addition to the buttons on the mobile phone. BRIEF DESCRIPTION OF THE DRAWINGS

1 and 2 are schematic views showing the structure of a prior art button point electrode;

3 is a schematic structural view of an embodiment of the present invention. The best way to implement the invention

The invention is further described below by way of embodiments with reference to the accompanying drawings.

Embodiment - As shown in FIG. 1 and FIG. 3, a new mobile phone button and disc structure described in this embodiment includes a disc structure key, and a composite material layer under the key button cap 1 of the disc structure key. 2 is provided with a charge transfer sensing sheet 23, and the charge transfer sensing sheet 23 leads an electrical signal through the sensing strip lead line 24. The composite material layer 2 may be a composite of a thermoplastic polyurethane sheet (TPU) and a silicone rubber layer. The transfer sensor sheet 23 is disposed between the thermoplastic polyurethane sheet 21 and the silicone rubber layer 22.

Claims

Rights request

1 . A new mobile phone button and disc structure comprising a disc structure key, characterized in that a charge transfer sensor is disposed in the composite layer (2) under the button key cap (1) of the disc structure key (23), the charge transfer sensing piece (23) draws an electrical signal through the sensing lead wire (24).

2. A new mobile phone button and disc structure according to claim 1, wherein said composite material layer (2) is a composite of a thermoplastic polyurethane sheet (21) and a silicone rubber layer (22). The charge transfer sensing sheet (23) is disposed between the thermoplastic polyurethane sheet (21) and the silicone rubber layer (22).