IP Library Granted Patent US 11,067,854
Granted Patent B2
US 11,067,854 · App. 16/906,303 · Granted Jul 20, 2021

Method of applying alignment film, and color filter substrate

Inventor: Kenichi Minowa (Kikuchi, JP)
Assignee: Mitsubishi Electric Corporation
G02F1/1337B05D1/286C09K2323/06
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Quick Facts
Patent No.
US 11,067,854
App. No.
16/906,303
Filed
Jun 19, 2020
Granted
Jul 20, 2021
Kind
B2
Examiner
HON, SOW FUN
Art Unit
1782
USPC
428/1.1
Abstract

A method of applying an alignment film on a substrate of a liquid crystal panel, the method includes: forming a surface having high wettability and a surface having low wettability, with respect to a material of the alignment film; bringing uniformly the material of the alignment film into contact with the surface having high wettability and the surface having low wettability when the material of the alignment film on the substrate is applied by using a transfer plate; and separating the transfer plate and the surface of the substrate such that the material of the alignment film is left on the surface having high wettability and the material of the alignment film is not left on the surface having low wettability.

Claims (9)

1. A method of applying an alignment film on a substrate of a liquid crystal panel, the method comprising:

forming on the substrate, a surface having high wettability and a surface having low wettability with respect to a material of the alignment film, wherein the surface having high wettability corresponds to a display region of the liquid crystal panel, and the surface having low wettability corresponds to a peripheral region of the display region and includes a region where at least one of a peripheral seal material is to be formed, a mounting member is to be attached, or an inspection terminal onto which a needle is brought into contact upon inspection is to be located;

applying the material of the alignment film on the substrate by bringing uniformly the material of the alignment film into contact with the surface having high wettability and the surface having low wettability by using a transfer plate, wherein the transfer plate has a solid pattern; and

separating the transfer plate and the surface of the substrate such that the material of the alignment film is left on the surface having high wettability and the material of the alignment film is not left on the surface having low wettability,

wherein the material of the alignment film brought into contact with the surface having low wettability is left on the transfer plate.

2. The method according to claim 1 ,

wherein the substrate is a color filter substrate.

3. The method according to claim 1 ,

wherein the surface having low wettability includes irregularities with fine projections.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 15, 2021
From: MITSUBISHI ELECTRIC CORPORATION
To: TRIVALE TECHNOLOGIES
Reel/Frame 057651/0234 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 19, 2020
From: MINOWA, KENICHI
To: MITSUBISHI ELECTRIC CORPORATION
Reel/Frame 052989/0278 →
Priority Claims (1)
JP 2015-077368 · Apr 6, 2015 · national
Continuity (2)
Division 15078089 · Mar 23, 2016
Related Publication 20200319486A1 · Oct 8, 2020