THIN CIRCULAR POLARIZER FOR DISPLAY APPLICATIONS
First Claim
1. A flexible circular polarizer comprising from a viewing side:
- a substrate;
a liquid crystal (LC) polarizer layer; and
a quarter wave plate reactive mesogen (RM) retarder layer;
wherein an optical axis of the RM retarder is aligned in a first direction and a transmission axis of the LC polarizer is aligned in a second direction different from the first direction, and an angle between the first and second directions has a value of 45°
±
15°
; and
wherein at least one of the substrate and the LC polarizer has a surface configuration that imparts an alignment to an adjacent non-viewing side layer.
1 Assignment
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Accused Products
Abstract
A flexible circular polarizer includes from a viewing side: a substrate; a liquid crystal (LC) polarizer layer; and a quarter wave plate reactive mesogen (RM) retarder layer. An optical axis of the RM retarder is aligned in a first direction and a transmission axis of the LC polarizer is aligned in a second direction different from the first direction, and an angle between the first and second directions has a value of 45°±15°. At least one of the substrate and the LC polarizer has a surface configuration that imparts an alignment to an adjacent non-viewing side layer. The LC polarizer layer may have a surface configuration that imparts an alignment to the RM retarder in the first direction, and/or the substrate may have a surface configuration that imparts an alignment to the LC polarizer in the second direction. A flexible display system includes from a viewing side the flexible circular polarizer, and a display device that is adhered to the flexible circular polarizer. The flexible display system is repeatedly reconfigurable between a planar state and a non-planar state, such as being bent, folded, rolled, flexed, and/or curved from the planar state.
5 Citations
20 Claims
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1. A flexible circular polarizer comprising from a viewing side:
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a substrate; a liquid crystal (LC) polarizer layer; and a quarter wave plate reactive mesogen (RM) retarder layer; wherein an optical axis of the RM retarder is aligned in a first direction and a transmission axis of the LC polarizer is aligned in a second direction different from the first direction, and an angle between the first and second directions has a value of 45°
±
15°
; andwherein at least one of the substrate and the LC polarizer has a surface configuration that imparts an alignment to an adjacent non-viewing side layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method of forming a flexible circular polarizer comprising steps of depositing from a viewing side:
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a substrate; a liquid crystal (LC) polarizer layer; and a quarter wave plate reactive mesogen (RM) retarder layer; wherein an optical axis of the RM retarder is aligned in a first direction and a transmission axis of the LC polarizer is aligned in a second direction different from the first direction, and an angle between the first and second directions has a value of 45°
±
15°
; andprior to depositing an adjacent non-viewing side layer, performing an aligning process on at least one of the substrate and the LC polarizer to form a surface configuration that imparts an alignment to the adjacent non-viewing side layer.
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Specification