Backlight device, display device and television receiver

Details Backlight device, display device and television receiver Backlight device, display device and television receiver

2008-10-03

2011-11-08

Alavi, Ali (Department: 2875)

Illumination

Edge lighted panel

Light guide

C362S608000, C362S231000, C362S293000, C362S583000

Reexamination Certificate

active

08052320

ABSTRACT:
To provide a backlight device with which a color hue and a color purity of a display panel can be improved while suppressing the lowering of the brightness of the display panel. A backlight device (20) comprises a pseudo white LED (21), a light guide plate (22), and a dichroic filter (25) which reflects a light with a predetermined wavelength among the light emitted from the pseudo white LED at a predetermined ratio. The dichroic filter is configured so that the light reflectance changes when the incident angle of the light is changed and a tilt angle to a light emitting surface (21e) of the pseudo white LED can be adjusted.

REFERENCES:
patent: 6210012 (2001-04-01), Broer
patent: 7038391 (2006-05-01), Tsumura
patent: 7887206 (2011-02-01), Lee
patent: 2006/0002131 (2006-01-01), Schultz et al.
patent: 5-137625 (1993-06-01), None
patent: 2002-500816 (2002-01-01), None
patent: 2002-270022 (2002-09-01), None
patent: 2005-183139 (2005-07-01), None
patent: 2008-505445 (2008-02-01), None

Affiliated with

Also associated with

Rating

Backlight device, display device and television receiver does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4278895