Invention Grant
- Patent Title: Method for manufacturing a light-guiding plate and key module having the light-guiding plate
- Patent Title (中): 具有导光板的导光板和按键模块的制造方法
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Application No.: US11560942Application Date: 2006-11-17
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Publication No.: US07650056B2Publication Date: 2010-01-19
- Inventor: Ko-Ju Chen
- Applicant: Ko-Ju Chen
- Applicant Address: TW Taoyuan
- Assignee: Ichia Technologies, Inc.
- Current Assignee: Ichia Technologies, Inc.
- Current Assignee Address: TW Taoyuan
- Agent Chun-Ming Shih
- Main IPC: G02B6/10
- IPC: G02B6/10 ; F21V11/00 ; B29D11/00

Abstract:
For manufacturing a light-guiding plate and a key module having the light-guiding plate, a mold is prepared first. Then, a material having high light transmittance is injected into the mold. After the plastic material is formed, the mold is released, so that the plastic material is formed into a sheet-like light-guiding plate, and one surface of the light-guiding plate is formed with a plurality of light-guiding portions thereon. The light-guiding plate is disposed in the key module of an electronic device. The light generated by light-emitting elements within the electronic device is introduced from the front end of a substrate of the light-guiding plate, and the light is refracted by the light-guiding portion to a corresponding key, thereby to display the numeral or pattern of the surface of a key cap of the key.
Public/Granted literature
- US20080117639A1 Method For Manufacturing A Light-Guiding Plate And Key Module Having The Light-Guiding Plate Public/Granted day:2008-05-22
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