Liquid crystal alignment quality and stability
AssigneeSnap Inc.
InventorHemasiri K. Vithana
Life of this patent
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Abstract
A method for manufacturing a liquid crystal (LC) display includes determining an amount of an LC material to be used in the LC display, determining a silane material to be mixed with the LC material and an amount of the silane material to be mixed with the LC material based on the LC material and the amount of the LC material, mixing the amount of the silane material with the amount of the LC material to generate an LC mixture, and heat treating the LC mixture in contact with a display substrate to bond at least a portion of the silane material to one or more surfaces of the display substrate, such that the silane material acts as a surfactant. The amount of the silane material may constitute at least 0.8% of the LC mixture by weight.
Claims20
A method for manufacturing a liquid crystal (LC) display, comprising:
- determining an amount of an LC material to be used in the LC display;
- based on the LC material and the amount of the LC material, determining:
- a silane material to be mixed with the LC material;
- and
- an amount of the silane material to be mixed with the LC material;
- mixing the amount of the silane material with the amount of the LC material to generate an LC mixture, the silane material being present in an amount such that a ratio of the amount of the silane material to the amount of the LC material is between 0.8:99.2 and 1.2:98.8;
- and
- heat treating the LC mixture in contact with a display substrate to bond at least a portion of the silane material to one or more surfaces of the display substrate, such that the silane material acts as a surfactant.
A liquid crystal (LC) mixture for use in an LC display, comprising:
- an amount of an LC material;
- and
- an amount of a silane material determined based on the LC material and the amount of the LC material, the silane material being present in an amount such that a ratio of the amount of the silane material to the amount of the LC material is between 0.8:99.2 and 1.2:98.8.
A liquid crystal (LC) display, comprising:
- a nematic LC material or chiral nematic LC material with a negative dielectric anisotropy configured to operate in a vertically aligned nematic (VAN) display mode or a twisted vertically aligned nematic (TVAN) display mode;
- a display substrate configured to contain the nematic LC material or chiral nematic LC material;
- and
- a silane material bonded to one or more surfaces of the display substrate and positioned between the one or more surfaces and the nematic LC material or chiral nematic LC material, the silane material:
- being present in an amount such that a ratio of the amount of the silane material to an amount of the nematic LC material or chiral nematic LC material is between 0.8:99.2 and 1.2:98.8;
- and
- comprising:
- an n-octadecyldimethylmethoxy silane;
- an n-octadecylmethyldimethoxy silane;
- an n-octadecyltrimethoxy silane;
- an n-octadecylmethyldiethoxy silane;
- an n-octadecyltriethoxyl silane;
- an octadecydimethyl(3-trimethoxysilyil-propyl)ammonium chloride;
- a 1,2-bis(trimethoxysilyl)decane;
- or
- a 1-n-decyl-1,1,3,3,3-pentamethoxy-1,3-disilapropane.
Dependencies are inferred from the claim text.