Liquid crystal display apparatus, a method for producing the same, and a substrate
AssigneeSharp Kabushiki Kaisha
InventorsShigeaki Mizushima, Kazuyuki Aburazaki, Noriko Watanabe, Mitsuaki Hirata, Hiroko Iwagoe, Tomoko Okamura
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Abstract
A method for producing a liquid crystal display apparatus, including a pair of substrates with a liquid crystal layer interposed therebetween, includes forming an aligning film on at least one of the pair of substrates. The surface of the aligning film is made rough to adjust the pretilt angles of liquid crystal molecules in the liquid crystal layer which are adjacent the aligning film. Further, the degrees of roughness are different among a plurality of prescribed regions.
Claims20
A method for producing a liquid crystal display apparatus having a pair of substrates with a liquid crystal layer interposed therebetween and having picture elements disposed in a matrix, the method comprising the steps of:
- forming an aligning film on at least one of the pair of substrates, wherein liquid crystal molecules in the liquid crystal layer adjacent the aligning film are at a pretilt angle with respect to the aligning film;
- performing a first surface treatment on the aligning film for aligning the liquid crystal molecules adjacent the aligning film;
- and
- performing a second surface treatment for making at least a part of a surface of the aligning film rough to adjust the pretilt angle of the liquid crystal molecules adjacent the aligning film.
A method for producing a liquid crystal display apparatus having a pair of substrates with a liquid crystal layer interposed therebetween and having picture elements disposed in a matrix, the method comprising the steps of:
- forming an underlying film on at least one of the pair of substrates;
- making the surface of the underlying film rough;
- forming an aligning film, liquid crystal molecules in the liquid crystal layer adjacent the aligning film being at a pretilt angle with respect to the aligning film;
- and
- performing a treatment on the surface of the aligning film for aligning the liquid crystal molecules adjacent the aligning film,
- wherein the roughness of the surface of the underlying film is transferred to the aligning film, and the pretilt angle of the liquid crystal molecules is adjusted depending on the transferred roughness.
Dependencies are inferred from the claim text.