A Double-Layer Electrically Controlled Birefringence Liquid-Crystal Display with a Wide-Viewing-Angle Cone

Abstract
Electrically controlled birefringence (ECB) mode displays using liquid crystal with negative dielectric anisotropy are promising for highly multiplexed dot-matrix liquid-crystal displays. This mode, however, has the problem of a narrow viewing angle because it is based on the birefringence of the liquid-crystal molecule. To solve this problem, a double-layer electrically controlled birefringence (D-ECB) liquid-crystal display is proposed. In this device, each layer compensates the variation of retardation as a function of viewing angle. As a result, the liquid-crystal display with a wide-viewing-angle cone under the application of voltage was realized.

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