Light emitting display

Details Light emitting display Light emitting display

2008-11-12

2010-12-07

Alavi, Ali (Department: 2875)

Illumination

Edge lighted panel

Light modifier with emission face combined with light guide...

C362S231000, C362S812000, C040S450000, C040S541000, C040S546000

Reexamination Certificate

active

07845839

ABSTRACT:
A light emitting display for generating a selectable character (number, letter or alphanumeric character) comprises a plurality of independently operable light emitting display elements (segments). Each display element comprises: a light guiding medium having a light emitting display face; at least one excitation source (LED) associated with the light guiding medium and independently operable to generate excitation light of a first wavelength range and couple the excitation light into the light guiding medium; and a pattern of at least one phosphor material provided on the light emitting surface and configured to define the light emitting element wherein the phosphor material absorbs at least a part of the excitation light and emits light of a second wavelength range. Each display element can comprise a discrete light guiding medium or display elements can be defined within a single light guiding medium by one or more light reflecting planes.

REFERENCES:
patent: 2004/0150342 (2004-08-01), Watanabe et al.
patent: 2009/0080215 (2009-03-01), Anandan
patent: 2009/0213618 (2009-08-01), Lai

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