Keypad

Details Keypad Keypad

2006-10-10

2006-10-10

Friedhofer, Michael (Department: 2832)

Electricity: circuit makers and breakers

Electric switch details

Actuators

C200S512000

Reexamination Certificate

active

07119296

ABSTRACT:
A manufacturing method for a keypad is provided. First, a patterned thin plastic sheet, which includes a first surface and a second surface, is provided. A plurality of touch buttons which can be operated independently are included. The touch buttons have a plurality of hollow patterned structures on them. Later, a metal layer is formed on the first surface of the patterned thin plastic sheet and on the sidewalls of the hollow patterned structures. Thereafter, an adhesion enhancing layer is added onto to the second surface of the patterned thin plastic sheet. Later, a colored layer is formed on the adhesion enhancing layer. Finally, a protruding point layer is formed on the adhesion enhancing layer, and is covering the colored layer. The protruding point layer has a plurality of protruding points with positions corresponding to the touch buttons respectively.

REFERENCES:
patent: 4194105 (1980-03-01), Hodges
patent: 4716262 (1987-12-01), Morse
patent: 2002/0196238 (2002-12-01), Tsukada et al.
patent: 2005/0057515 (2005-03-01), Bathiche
patent: 2005/0259069 (2005-11-01), Baker et al.
patent: 2006/0062624 (2006-03-01), Choi

Affiliated with

Also associated with

Rating

Keypad does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Keypad, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Keypad will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3636738