Light guide panel and display device employing the same

Details Light guide panel and display device employing the same Light guide panel and display device employing the same

2006-08-18

2009-08-11

Connelly Cushwa, Michelle R (Department: 2874)

Liquid crystal cells, elements and systems

Particular structure

Particular illumination

C385S129000, C385S901000

Reexamination Certificate

active

07573543

ABSTRACT:
Provided are a light guide panel and a display device employing the same. The light guide panel includes: an incidence surface facing a plurality of light sources separated apart a predetermined distance; at least one dark portion reducing unit that is formed on the incidence surface between adjacent pairs of the slight sources and at both edges of the incidence surface, and reflects the light incident from the light sources to reduce the creation of dark portion units; an upper surface transmitting a portion of incident light and reflecting the rest of the incident light; and a lower surface facing the upper surface and reflecting the light incident from the incidence surfaces and dark portion reducing units.

REFERENCES:
patent: 7139048 (2006-11-01), Han et al.
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patent: 2004/0161222 (2004-08-01), Niida et al.
patent: 2004/0207775 (2004-10-01), Min et al.
patent: 2004/0264911 (2004-12-01), Toeda et al.
patent: 2006/0233489 (2006-10-01), Liao
patent: 1521229 (2005-04-01), None
patent: 2001-23423 (2001-01-01), None
patent: 10-2004-0090070 (2004-10-01), None
Dmitri Nesterenko et al.: “40.4: Design and Analysis of Tapered Waveguides as Collimators for LED Backlighting”, 2005 SID International Symposium. Boston, MA, May 24-27, 2005, SID International Symposium, San Jose, CA,: SID, US, May 24, 2005, pp. 1388-1391, XP007012309.

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