Illumination – Edge lighted panel – Light source
Reexamination Certificate
2007-01-30
2007-01-30
O'Shea, Sandra (Department: 2875)
Illumination
Edge lighted panel
Light source
C362S326000, C313S508000
Reexamination Certificate
active
10972629
ABSTRACT:
A light-emitting diode (LED) (110) includes a chip body (113), an encapsulation can (115) surrounding the chip body, and a base (111) supporting the encapsulation can and the chip body thereon. A diffraction grating (117) is provided at a surface of the encapsulation can, and the encapsulation can is made of a piezoelectric material for widening radiation angles of light beams emitted from the chip body. With the diffraction grating and the piezoelectric encapsulation can, light beams from the chip body are diffracted and attain wider radiation angles. A backlight system (100) includes a light guide plate (120), and a number of the above-described LEDs disposed adjacent to the light guide plate. Light beams having wide radiation angles are emitted from the LEDs and enter the light guide plate. This enables a light-emitting surface (122) of the light guide plate to have highly uniform brightness.
REFERENCES:
patent: 5446334 (1995-08-01), Gaffney
patent: 6835440 (2004-12-01), Konishi et al.
patent: 6976779 (2005-12-01), Ohtsuki et al.
patent: 6979095 (2005-12-01), Min et al.
patent: 7059728 (2006-06-01), Alasaarela et al.
patent: 7078856 (2006-07-01), Fujii
patent: 2005/0036319 (2005-02-01), Gruhike et al.
patent: 2005/0140258 (2005-06-01), Leu et al.
Chen Ga-Lane
Leu Charles
Yu Tai-Cherng
Hon Hai Precision Industry Co. Ltd.
Makiya David
Morris Manning & Martin LLP
O'Shea Sandra
Tingkang Xia, Esq. Tim
LandOfFree
Piezoelectric light-emitting diode and backlight system... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Piezoelectric light-emitting diode and backlight system..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Piezoelectric light-emitting diode and backlight system... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3809849