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US 2016/0266292 A1Published application
Coatable Polymer Polarizer
AssigneeLight Polymers Holding
InventorsValeriy Kuzmin, Evgeny Morozov, Liudmila Yazykova
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Abstract
A coatable polymer polarizer may be formed with a composition that includes a rigid rod-like polymer capable of forming a liquid crystal phase in a solvent. The rigid rod-like polymer may form an achromatic polarizer.
Claims20
A composition comprising:
- a rigid rod-like polymer capable of forming a liquid crystal phase in a solvent, the rigid rod-like polymer comprises:
- a conjugated molecular segment (I), having a first conjugation length;
- and
- a bridging group in between adjacent conjugated molecular segments along a main chain of the rigid rod-like polymer, such that a conjugation length of the rigid rod-like polymer is greater than the first conjugation length, wherein segment (I) is represented by a structure:
- wherein each of R1, R2, R3 and R4 is independently, hydrogen or a substituent group that renders the rigid rod-like polymer soluble in a solvent and the bridging groups are connected to the conjugated molecular segment (I) at positions 1, 2, 3, and 4.
2 more elements
A polarizer comprising:
- a layer of aligned polymer material formed from a lyotropic liquid crystal material, the layer of aligned polymer material transmitting most of visible light of a first polarization and absorbing most of visible light having a second polarization orthogonal to the first polarization, the layer having a thickness of less than five micrometers.
A method of forming an achromatic polarizer comprising the steps of:
- shear coating a lyotropic liquid crystal polymer material onto a substrate to form an aligned liquid crystal polymer layer;
- drying the aligned liquid crystal polymer layer to form a layer of aligned polymer material layer, and the aligned polymer material layer transmitting most of visible light of a first polarization and absorbing most of visible light having a second polarization orthogonal to the first polarization, the aligned polymer material layer having a thickness of less than five micrometers.
Dependencies are inferred from the claim text.