Optical: systems and elements – Holographic system or element – Using a hologram as an optical element
Patent
1991-10-28
1993-03-09
Sikes, William L.
Optical: systems and elements
Holographic system or element
Using a hologram as an optical element
359 68, G02F 113
Patent
active
051930188
ABSTRACT:
A matrix display system includes an active matrix display device having an array of liquid crystal picture elements (pixel) with associated switches using thin film transistors (TFT). The pixels are arranged in groups, each having two pixels and switched by two complementary TFTs. The n-channel TFTs are switched on by a positive pulse and the p-channel TFTs are switched on by a negative pulse. The two switching signals are alternately fed from a row conductor which feeds both the n-channel TFTs and the p-channel TFTs on the same row. Each group of the two TFTs are addressed via the same row conductor and the same column conductor, which carries the data signal. In this way, either the number of row conductors are reduced by one half or the number of column conductors are reduced by one half.
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patent: 4653862 (1987-03-01), Morozumi
patent: 4775861 (1988-10-01), Saito
patent: 4781438 (1988-11-01), Noguchi
patent: 4834505 (1989-05-01), Migliorato et al.
patent: 4995703 (1991-02-01), Noguchi
Industrial Technology Research Institute
Lin H. C.
Mai Huy K.
Sikes William L.
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