Planar light source, display device and method for...

Details Planar light source, display device and method for... Planar light source, display device and method for...

2011-06-21

2011-06-21

Peace, Rhonda S (Department: 2874)

Liquid crystal cells, elements and systems

Particular structure

Particular illumination

C349S061000, C349S068000, C362S097200

Reexamination Certificate

active

07965351

ABSTRACT:
Light-emitting elements are divided into chromaticity groups on the basis of their chromaticity. In a planar light source, light-emitting elements selected from two of the chromaticity groups are alternately provided in a longitudinal direction and in a transverse direction, respectively. The two chromaticity groups are substantially equally away from a target chromaticity in directions reverse to each other. Further, pairs of two of the light-emitting elements belonging to the two chromaticity groups which are separated from each other, are provided so that distances d2at which two of the light-emitting elements in each of the pairs are provided are less than distances d1at which the pairs are provided.

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