Optical: systems and elements – Holographic system or element – Using a hologram as an optical element
Patent
1993-10-08
1995-10-10
Sikes, William L.
Optical: systems and elements
Holographic system or element
Using a hologram as an optical element
359 55, 359 73, 359103, 345 87, G02F 11347, G02F 1137, G09G 336
Patent
active
054575516
ABSTRACT:
A display system (10) uses an electrically driven compensator cell (16) not only to improve the color quality of the display system but also to solve viewability problems stemming from the frame response effect. The display system includes a liquid crystal cell (14) patterned as a matrix display device and the compensator cell patterned in a row-only fashion. Corresponding row electrodes (26, 32) of the matrix display cell and the compensator cell are concurrently driven from the same row driver circuit (40). The cells are constructed and oriented relative to each other so as to cancel unwanted polarization state changes resulting from the frame response effect. The resulting light transmission through the display system in the OFF optical state is substantially at a minimum at all times during a frame period.
REFERENCES:
patent: 4952036 (1990-08-01), Gulick et al.
patent: 5035489 (1991-07-01), Iijima et al.
patent: 5090794 (1992-02-01), Hatano et al.
patent: 5124818 (1992-06-01), Conner et al.
patent: 5272553 (1993-12-01), Yamamoto et al.
Conner, Arlie R. and Gulick, Paul E., "High-Resolution Display System based on Stacked Mutually Compensated STN-LCD Layers," SID 91 Digest, 1991, pp. 755-757.
Scheffer, Terry and Nehring, Jurgen, "Supertwisted Nematic (STN) LCDs," 1993 SID International Symposium, May 16-21, 1993, pp. M 7/1-M 7/63.
Takahashi, Taiju and Saito, Susumu; "Improvement of Multiplexability of Double-Layered Homogeneously Oriented Nematic LCD by Simultaneous Driving Method"; Electronics and Communications in Japan, Part II; vol. 74, No. 12; 1991; pp. 49-58.
Culter Robert G.
Kongslie Keith F.
Duong Tai V.
Planar Systems Inc.
Sikes William L.
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