Lighting device and liquid crystal display device

Details Lighting device and liquid crystal display device Lighting device and liquid crystal display device

2006-07-18

2006-07-18

O'Shea, Sandra (Department: 2875)

Illumination

Edge lighted panel

Light guide

C362S615000, C362S624000

Reexamination Certificate

active

07077556

ABSTRACT:
A front light of the invention has a light guide plate, an intermediate light guide disposed along the side end surface, and a light emitting device disposed on an end surface thereof. The pitch between grooves having a wedge shape in cross section formed on a backside of the light guide on the opposite side of the light guide plate is formed so as to be linearly varied with respect to the distance from an end surface disposed with the light emitting device to the groove. The depth of the groove is formed more deeply as the grooves are positioned more apart from the end surface. In the distribution of the depth of the groove with respect to the distance from the end surface to the groove, there are a first area where the depth of the groove is linearly increased with respect to the distance from the end surface disposed with the light emitting device to the groove, and a second area formed apart from the light emitting device more than the first area in which the increasing rate of the depth of the groove with respect to the distance from the end surface is greater than that in the first area.

REFERENCES:
patent: 6286970 (2001-09-01), Egawa et al.
patent: 6652109 (2003-11-01), Nakamura
patent: 6692134 (2004-02-01), Ohwada et al.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3578799