Metal working – Method of mechanical manufacture – Electrical device making
Reexamination Certificate
2011-01-11
2011-01-11
Phan, Thiem (Department: 3729)
Metal working
Method of mechanical manufacture
Electrical device making
C029S846000, C029S848000, C200S313000, C200S314000, C200S341000
Reexamination Certificate
active
07866032
ABSTRACT:
In a method of manufacturing a metal keypad panel with a micropore array, a metal laminate is prepared and etched to form micropores on the metal laminate, and a filling is coated on a surface of the metal laminate and permeated into the micropores. After the metal laminate is punched to form a metal keypad panel in a predetermined shape, the metal keypad panel is put into a mold. After a plastic material is injected into the mold, a pattern layer is formed on a side of the metal keypad panel, and then a backlight module is attached onto another side of the metal keypad panel. The backlight module has patterns, and the shape of the patterns is formed by arranging light guide microstructures. Finally, an electric signal module is attached onto a side of the backlight module to complete manufacturing the metal keypad panel.
REFERENCES:
patent: 7034235 (2006-04-01), Hosaka
patent: 7674992 (2010-03-01), Hutchison et al.
patent: 2007/0205986 (2007-09-01), Kim
patent: 2009/0236209 (2009-09-01), Ishii
patent: 2007-115633 (2007-05-01), None
Hsu Chih-Ho
Wu Che-Tung
HDLS IPR Services
Ichia Technologies, Inc.
Phan Thiem
Shih Chun-Ming
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