Optical waveguides – Noncyclindrical or nonplanar shaped waveguide
Patent
1995-04-07
1996-08-13
Lee, John D.
Optical waveguides
Noncyclindrical or nonplanar shaped waveguide
2502011, 250553, 25022711, 257 80, 385 15, 385 24, G02B 634
Patent
active
055464963
ABSTRACT:
There is provided an inexpensive light emitting display device which has a simple wiring structure and produces a bright screen display. A photo-transistor is connected in series with a light emitting diode. The photo-transistor is arranged so that light emitted from the light emitting diode enters into the photo-transistor. There is provided an optical guide for guiding a data signal light to the photo-transistor and an optical guide for guiding a scanning signal light to the phototransistor. Further, an optical control section has a laser diode array, a lens array, and a deflection mirror. The above-mentioned arrangement obviates the need of an electric wiring for a data signal and a scanning signal, and is able to turn on the photo-transistor with the emission light from the light emitting diode and makes the photo-transistor self-hold its conductive state.
REFERENCES:
patent: Re33422 (1990-11-01), Garcia, Jr.
patent: 4084905 (1978-04-01), Schreiber et al.
patent: 5321294 (1994-06-01), Chino et al.
patent: 5365383 (1994-11-01), Miller et al.
Funakoshi Takahiro
Kimoto Masahiko
Nakamichi Masumi
Tsuda Yoichi
Wada Yasuhiro
Conlin David G.
Lee John D.
Michaelis Brian L.
Sharp Kabushiki Kaisha
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