Reflector for flat panel display backlight unit

Details Reflector for flat panel display backlight unit Reflector for flat panel display backlight unit

1994-05-27

1996-10-22

Gromada, Denise L.

Illumination

Plural light sources

With modifier

362 29, 362224, 362225, 362297, 362346, F21V 709

Patent

active

055670423

ABSTRACT:
Backlighting for an LCD display is provided by a direct backlight unit which is hinged to the front panel in which the display is mounted. When closed, the backlight unit lamps and reflector transmit light directly against the back of the display. The reflector surfaces are made by a combination of constant radius, hyperbolic, parabolic and flat surfaces which maximize the emitted light transmitted to the display and help fill in for any failed or dimmed light sources.

REFERENCES:
patent: 4106083 (1978-08-01), Wolff
patent: 4425604 (1984-01-01), Imai et al.
patent: 4729075 (1988-03-01), Brass
patent: 4794501 (1988-12-01), Bartenbach
patent: 4947305 (1990-08-01), Gunter, Jr.
patent: 5134553 (1992-07-01), Hasegawa
patent: 5253151 (1993-10-01), Mepham et al.

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