Invention Grant
- Patent Title: Membrane circuit board and keyboard having the same
- Patent Title (中): 膜电路板和键盘具有相同的功能
-
Application No.: US13161231Application Date: 2011-06-15
-
Publication No.: US08810438B2Publication Date: 2014-08-19
- Inventor: Ching-Cheng Tsai , Cheng-Hui Shen
- Applicant: Ching-Cheng Tsai , Cheng-Hui Shen
- Applicant Address: TW New Taipei
- Assignee: Chicony Electronics Co., Ltd.
- Current Assignee: Chicony Electronics Co., Ltd.
- Current Assignee Address: TW New Taipei
- Agency: Perkins Coie LLP
- Agent Michael A. Glenn
- Priority: TW100204912U 20110318
- Main IPC: H03K17/94
- IPC: H03K17/94 ; F21V33/00 ; G09G3/36 ; H01H9/00 ; H01H9/18 ; H01H13/83
Abstract:
A membrane circuit board and a keyboard device having the same are provided in the invention. The membrane circuit board is defined with a plurality of key regions. Each of the key regions is with a pressing region and at least one light-pervious region thereon. The membrane circuit board comprising at least two light-pervious membranes stacked with each other, and at least one light-pervious adhesive layer sandwiched between the two light-pervious membranes and at least fully filled in the light-pervious region.
Public/Granted literature
- US20120235837A1 Membrane Circuit Board and Keyboard Having the Same Public/Granted day:2012-09-20
Information query
