Flat panel light source device and passive display device utiliz

Details Flat panel light source device and passive display device utiliz Flat panel light source device and passive display device utiliz

1997-02-25

1999-06-22

Lazarus, Ira S.

Illumination

Revolving

362 26, 349 67, G01D 1128, G02F 11335

Patent

active

059135948

ABSTRACT:
Flat panel light source device comprises first and second light transmission panels and light coupling device. Both panels may have relatively high refractive index and relatively high light transmission characteristics. The first panel is used for illumination and the second panel is used for bypass light guide. Both panels are located adjacently in parallel. The light coupling device makes light coupling between both panels and is located near one pair of side terminals in both panels, distant from another pair of side terminals to which incident light rays are input. The second panel may have at least one of light reflective layer of light transmission material with lower refractive index than the second panel. Alternatively, the second panel may have multiple of optical fibers. A passive type display device comprises a flat panel type passive display device and the flat panel light source in described above. The liquid crystal display device may be used for the passive display device.

REFERENCES:
patent: 2566458 (1951-09-01), Macau V.
patent: 5207493 (1993-05-01), Murase et al.
patent: 5280415 (1994-01-01), Barnette
patent: 5392199 (1995-02-01), Kashima et al.
patent: 5410454 (1995-04-01), Murase et al.
patent: 5438453 (1995-08-01), Kuga
patent: 5461547 (1995-10-01), Ciupke et al.
patent: 5467208 (1995-11-01), Kokawa et al.
patent: 5618096 (1997-04-01), Parker et al.
patent: 5729311 (1998-03-01), Broer et al.

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