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US 5,493,430 AGranted
Color, reflective liquid crystal displays
AssigneeKent Display Systems, L.P
InventorsMinhua Lu, Haiji Yuan, Zvi Yaniv
Life of this patent
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Abstract
A display device (10) having first and second substrates (12) and (30) and a layer of a liquid crystal material having a periodic modulated structure, such as a PSCT or PFCT liquid crystal material disposed therebetween. A layer of a color imparting material (18) is disposed atop one surface of one substrate. The liquid crystal material is tailored or tuned to complementarily provide color to said display in connection with said layer of color imparting material.
Claims18
A full color liquid crystal display having a viewer proximal and a viewer distal side, said display comprising:
- a first substrate having a first and second major surface, and having a color imparting layer disposed on one major surface thereof, and said second major surface defining said viewer distal side of said display;
- a second substrate disposed opposite said first substrate;
- and
- a layer of a liquid crystal material having periodic modulated optical structure that reflects light, disposed between said first and second substrates, said material having a first state in which said material is substantially transparent, and a second state which reflects light of a preselected wavelength, said preselected wavelength selected to complement the color imparted by said color imparting layer.
1 more element
Dependencies are inferred from the claim text.