Correction system and method for alignment film printing plate

Patent metadata

Field	Value
Publication number	US-10754197-B2
Application number	US-201715522646-A
Country	US
Kind code	B2
Filing date	Feb 27, 2017
Priority date	Feb 14, 2017
Publication date	Aug 25, 2020
Grant date	Aug 25, 2020

Abstract

Disclosed is a correction system for an alignment film printing plate, including: a roller and a printing plate mounted as a sleeve outside of the roller, wherein a first end portion of the printing plate is provided thereon with a plurality of columns of buckle groups, and a second end portion of the printing plate is provided thereon with a plurality of columns of slot groups engaged with the buckle groups. The correction system for the alignment film printing plate further includes an image controller used for measuring a deviation value between an actual position and a preset position for printing of an alignment film on a substrate. The correcting system of the alignment film printing plate has a simple structure and is capable of realizing different stretching degrees of an alignment film pattern at different positions on the printing plate, so as to improve a correction effect of the printing plate. As a result, deviation can be reduced between an actual position and a preset position for printing of the alignment film on the substrate, without significant increase in costs.

First claim

The invention claimed is:

1. A correction system for an alignment film printing plate, comprising:
a roller and a printing plate mounted as a sleeve outside of the roller, wherein a first end portion of the printing plate is provided thereon with a plurality of columns of buckle groups, and a second end portion of the printing plate is provided thereon with a plurality of columns of slot groups engaged with the buckle groups; and
an image controller used for measuring a deviation value between an actual position and a preset position;
wherein the plurality of columns of buckle groups are provided thereon with a plurality of first scales and the plurality of columns of slot groups are provided thereon with a plurality of second scales;
a first number of columns of buckle groups and a second number of columns of slot groups are engaged with each other, an engagement between the first number of columns of buckle groups and the second number of columns of slot groups is configured to be adjusted according to the plurality of first scales and the plurality of second scales, the first number and the second number are variable and selected according to the deviation value.

2. The correction system for the alignment film printing plate according to claim 1 , wherein the buckle groups include at least one buckle projection, and the slot groups include at least one buckle recess engaged with the buckle projection.

3. The correction system for the alignment film printing plate according to claim 1 , wherein the first end portion is close to a printing start end, and the second end portion is close to a printing end.

4. The correction system for the alignment film printing plate according to claim 1 , wherein the plurality of first scales are arranged at a side of the first end portion away from the second end portion in a form of figure, the plurality of second scales are arranged at a side of the second end portion away from the first end portion in a form of figure.

5. The correction system for the alignment film printing plate according to claim 1 , wherein each first scale is arranged corresponding to a column of buckle group, each second scale is arranged corresponding to a column of slot group.

6. The correction system for the alignment film printing plate according to claim 1 , wherein the plurality of the first scales are arranged according to scale values from small to large along a first direction, the plurality of the second scales are arranged according to scale values from small to large along a second direction, the first direction is opposite to the second direction.

Assignees

• Wuhan China Star Optoelectronics Technology Co Ltd

Inventors

• Zhao Kaixiang

Classifications

• B41F27/005 Primary

  Attaching and registering printing formes to supports · CPC title

• B41F27/1218

  comprising printing plate tensioning devices · CPC title

• G02F1/133723

  Polyimide, polyamide-imide · CPC title

• G02F1/1303

  Apparatus specially adapted to the manufacture of LCDs · CPC title

• G02F1/1337 Primary

  Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers · CPC title