Electro-optical devices
First Claim
1. An optical display device comprising first and second transparent transposed plates, first and second electrodes mounted on the facing surfaces of said first and second plates, respectively, an insulating spacer interposed between said plates, a nematic liquid crystal filled between said first and second plates and within said insulating spacer, said first electrode being transparent and said second electrode being partially reflective having a light transmittance in the range of 30% to 70%, said second electrode being composed of an opaque reflective material with a plurality of fine holes formed therein, the number of holes being determined by the light transmittance desired, said optical display device being adapted to be energized by a D.C. source and wherein said first and second electrodes are a positive electrode and a negative electrode, respectively, said negative electrode comprising as an essential component titanium.
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Abstract
In a liquid crystal display device comprising a pair of opposed electrode-mounted plates and a nematic liquid crystal layer, the electrode terminals are mounted on one plate by transferring the connection of one electrode to the opposite plate without directly contacting the liquid crystal material by interposing an electrically conductive material between the corresponding electrode terminal and the one electrode. In accordance with changes of environment, distinct patterns are obtained by making the front electrode of the liquid crystal display element transparent and the back electrode thereof a partial light-transmissive, mirror-like plane. The life of the liquid crystal element under application of D.C. field is increased by using titanium, zirconium and palladium as an essential component of the negative electrode of said element.
168 Citations
2 Claims
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1. An optical display device comprising first and second transparent transposed plates, first and second electrodes mounted on the facing surfaces of said first and second plates, respectively, an insulating spacer interposed between said plates, a nematic liquid crystal filled between said first and second plates and within said insulating spacer, said first electrode being transparent and said second electrode being partially reflective having a light transmittance in the range of 30% to 70%, said second electrode being composed of an opaque reflective material with a plurality of fine holes formed therein, the number of holes being determined by the light transmittance desired, said optical display device being adapted to be energized by a D.C. source and wherein said first and second electrodes are a positive electrode and a negative electrode, respectively, said negative electrode comprising as an essential component titanium.
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2. An optical display device comprising first and second transparent transposed plates, first and second electrodes mounted on the facing surfaces of said first and second plates, respectively, an insulating spacer interposed between said plates, a nematic liquid crystal filled between said first and second plates and within said insulating spacer, said first electrode being transparent and said second electrode being partially reflective having a light transmittance in the range of 30% to 70%, said second electrode being composed of an opaque reflective material with a plurality of fine holes formed therein, the number of holes being determined by the light transmittance desired, said optical display device being adapted to be energized by a D.C. source and said first and second electrodes are a positive electrode and a negative electrode, respectively, said negative electrode comprising as an essential component zirconium.
Specification