Keypad backlighting device

Details Keypad backlighting device Keypad backlighting device

2006-09-12

2010-11-16

Nguyen, Kevin M (Department: 2629)

Computer graphics processing and selective visual display system

Display peripheral interface input device

Including keyboard

C200S310000

Reexamination Certificate

active

07834854

ABSTRACT:
A keypad backlighting device includes a light source having an emission chip and a fluorescent material applied to the emission chip. The emission chip and the fluorescent material interact with each other and generate white light. The light source can realize white light by means of interaction between the emission chip and the fluorescent material applied thereto. This improves the reproduction properties of the backlight color of the keypad. In addition, the device has an elastic pad configured for guiding light from the light source to key tops attached to the pad. This reduces the number of light sources and saves on the cost of manufacturing.

REFERENCES:
patent: 5128842 (1992-07-01), Kenmochi
patent: 6158867 (2000-12-01), Parker et al.
patent: 7432463 (2008-10-01), Clegg et al.
patent: 2001/0050371 (2001-12-01), Odaki et al.
patent: 2004/0207313 (2004-10-01), Omoto et al.
patent: 2005/0128767 (2005-06-01), Wang et al.
patent: 2005/0167682 (2005-08-01), Fukasawa
patent: 2005/0243576 (2005-11-01), Park et al.
patent: 2006/0284847 (2006-12-01), Pate et al.
patent: 2007/0171503 (2007-07-01), Luo
patent: 2863724 (2005-06-01), None
patent: 10-242513 (1998-09-01), None
patent: WO2005078563 (2005-08-01), None
Odaki, Tsutomu, et al.; Patent Application Publication No. US 2001/0050371 A1; Publication Date: Dec. 13, 2001; “Light-Emitting Diode Device;” . . . .
“Weisser als Weiss;” Elektronikpraxis; Oct. 9, 1998; XP008093329.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4239577