Reflective display apparatus and method of forming the same
AssigneeHimax Display, Inc.
InventorsWen-Hsu Chen, Yuet-Wing Li
Life of this patent
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Abstract
A reflective display apparatus is provided, which includes a liquid-crystal-on-silicon (LCOS) display module and a compensation layer. The LCOS display module has a liquid crystal layer. The liquid crystal layer includes liquid crystal cells, each having a beta angle ranging from about 9 degrees to about 11 degrees and a twist angle ranging from about 84 degrees to about 88 degrees relative to the beta angle. The compensation layer is disposed on the LCOS display module for compensating retardation of the liquid crystal layer.
Claims16
A reflective display apparatus, comprising:
- a liquid-crystal-on-silicon (LCOS) display module having a liquid crystal layer, wherein the liquid crystal layer comprises a plurality of liquid crystal cells each having a beta angle ranging from about 9 degrees to about 11 degrees and a twist angle ranging from about 84 degrees to about 88 degrees relative to the beta angle, wherein the beta angle is relative to a planar axis of the LCOS display module;
- and
- a compensation layer on the LCOS display module for compensating retardation of the liquid crystal layer;
- wherein the compensation layer comprises two compensation films stacked on each other, and wherein one of the compensation films has a slow axis of between about 0 and about 30 degrees, and the other of the compensation films has a slow axis of between about 90 degrees and about 120 degrees.
A method of forming a reflective display apparatus, comprising:
- providing a LCOS display module having a liquid crystal layer, wherein the liquid crystal layer comprises a plurality of liquid crystal cells each having a beta angle ranging from about 9 degrees to about 11 degrees and a twist angle ranging from about 84 degrees to about 88 degrees relative to the beta angle, wherein the beta angle is relative to a planar axis of the LCOS display module;
- and
- disposing a compensation layer on the LCOS display module for compensating retardation of the liquid crystal layer;
- wherein the compensation layer comprises two compensation films stacked on each other, and wherein one of the compensation films has a slow axis of between about 0 and about 30 degrees, and the other of the compensation films has a slow axis of between about 90 degrees and about 120 degrees.
Dependencies are inferred from the claim text.