Fiber optic backlighting panel and dot process for making same

Details Fiber optic backlighting panel and dot process for making same Fiber optic backlighting panel and dot process for making same

1991-06-27

1993-07-06

Ullah, Akm E.

Optical waveguides

Miscellaneous

385901, 385120, 362 26, 362 31, 362330, 358901, G02B 600, F21V 500, H04N 931

Patent

active

052261050

ABSTRACT:
An improved fiber optic backlighting panel provides increased background illumination relative to the amount of light transmitted therethrough, in devices such as rubber keypads, membrane switches, liquid crystal displays, rigid panels or the like. The fiber optic panel comprises a light source and a layer of optical fibers arranged adjacent each other which transmit the light beamed therein to different locations throughout the device, to provide increased and uniform intensity of light at specific locations or uniformly distributed light throughout the device. The optical fibers are selectively terminated at the different locations by forming holes through the layer of optical fibers with a laser, according to a predetermined geometric pattern of dot locations stored in a computer memory. In one specific embodiment for application in liquid crystal displays, a layer of foam is used to diffuse and scatter light to provide uniform illumination.

REFERENCES:
patent: 2909857 (1959-10-01), Wilson
patent: 3183815 (1965-05-01), Kapany et al.
patent: 3592199 (1971-07-01), Ostensen
patent: 3692383 (1972-09-01), Herod et al.
patent: 3829675 (1974-08-01), Mariani
patent: 3886544 (1975-05-01), Narodny
patent: 4052120 (1977-10-01), Sick et al.
patent: 4124879 (1978-11-01), Schoemer
patent: 4128332 (1978-12-01), Rowe
patent: 4139261 (1979-02-01), Hilsum
patent: 4141058 (1979-02-01), Mizohata et al.
patent: 4141161 (1979-02-01), Hiscock et al.
patent: 4761047 (1988-08-01), Mori
patent: 4845596 (1989-07-01), Mouissie
patent: 4885663 (1989-12-01), Parker
patent: 4935850 (1990-06-01), Smith, Jr.
patent: 5018007 (1991-05-01), Lang et al.
patent: 5021928 (1991-06-01), Daniel

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