Fpr having periodic micropattern
AssigneeLG Chem, Ltd.
InventorsByoung Kun JEON, Moon Soo Park, Bu Gon Shin, Sin Young Kim, Jong Byung Lee, Da Mi Lee, Ji Hoon Park
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Abstract
This application relates a liquid crystal alignment film, a manufacturing method of the liquid crystal alignment film, an optical filter, and a display device. According to one illustrative liquid crystal alignment film, for example, a stereoscopic image can be displayed in wide viewing angles without losses of the brightness.
Claims18
A liquid crystal alignment film, comprising:
- a surface having a liquid crystal alignment ability;
- and
- a groove having a width in the range of 5 μm to 300 μm and a depth in the range of 0.5 μm to 5 μm.
A manufacturing method of a liquid crystal alignment film, comprising granting a liquid crystal alignment ability to a surface of a layer that includes a groove having a width in the range of 5 μm to 300 μm and a depth in the range of 0.5 μm to 5 μm.
An optical filter, comprising:
- a liquid crystal alignment film including a surface having a liquid crystal alignment ability and a groove having a width in the range of 5 μm to 300 μm and a depth in the range of 0.5 μm to 5 μm;
- and
- a liquid crystal layer that is formed on the surface having the liquid crystal alignment ability and that includes a first region and a second region which are different from each other in the phase retardation property.
Dependencies are inferred from the claim text.