LED display apparatus

Details LED display apparatus LED display apparatus

2006-05-30

2006-05-30

Nguyen, Cuong (Department: 2811)

Active solid-state devices (e.g., transistors, solid-state diode

Incoherent light emitter structure

Plural light emitting devices

C257S101000, C257S099000

Reexamination Certificate

active

07053416

ABSTRACT:
A highly reliable LED display apparatus is provided in which dust and other similar particles are prevented from entering spaces formed between light-emitting diodes and openings in a mask member provided on a circuit board. The LED display apparatus has the circuit board, the light-emitting diodes provided at predetermined positions thereon, and the mask member which is disposed approximately parallel to the circuit board. The mask member has openings at positions corresponding to the light-emitting diodes which are placed inside the respective openings. In the LED display apparatus described above, the openings of the mask member have fine projections on side surfaces thereof. The fine projections can be formed on the mask member by a flock processing technique.

REFERENCES:
patent: 5523591 (1996-06-01), Fleming et al.
patent: 5583349 (1996-12-01), Norman et al.
patent: 5821567 (1998-10-01), Ogihara et al.
patent: 6963085 (2005-11-01), Chou
patent: 10-161569 (1998-06-01), None
patent: 11-265499 (1999-09-01), None

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