Plate Hanging Device and Alignment Film Coating System

Patent metadata

Field	Value
Publication number	US-2016274388-A1
Application number	US-201514744523-A
Country	US
Kind code	A1
Filing date	Jun 19, 2015
Priority date	Mar 20, 2015
Publication date	Sep 22, 2016
Grant date	—

Abstract

The invention provides a plate hanging device and an alignment film coating system. The plate hanging device includes a plate hanging part and a control part, wherein the plate hanging part is used for keeping the part of a transfer plate not coiled on a cylinder at a stretched state in a plate hanging process; the control part is used for controlling the cylinder to rotate to coil the transfer plate on the surface of the cylinder, the plate hanging device further includes a liquid spray part, the liquid spray part is connected with the control part and is controlled by the control part to uniformly spray a chemical reagent onto the surface to be jointed of the transfer plate to increase the friction between the transfer plate and the cylinder, and the surface to be jointed is a surface to be jointed with the cylinder of the transfer plate.

First claim

1 . A plate hanging device, used for coiling a transfer plate on the surface of a cylinder, comprising a plate hanging part and a control part, wherein the plate hanging part is used for keeping the part of the transfer plate not coiled on the cylinder at a stretched state in a plate hanging process; the control part is used for controlling the cylinder to rotate to coil the transfer plate on the surface of the cylinder, the plate hanging device further comprises a liquid spray part, the liquid spray part is connected with the control part and is controlled by the control part to uniformly spray a chemical reagent onto the surface to be jointed of the transfer plate to increase the friction between the transfer plate and the cylinder, and the surface to be jointed is a surface to be jointed with the cylinder of the transfer plate.

2 . The plate hanging device of claim 1 , wherein the liquid spray part comprises a container, at least one spray head, a pressure device and a liquid supply pipeline used for communicating the container with the at least one spray head; the pressure device is respectively connected with the control part and the container;
the container is used for containing the chemical reagent; the at least one spray head is used for spraying the chemical reagent onto the surface to be jointed of the transfer plate; the pressure device is controlled by the control part to apply a pressure into the container, for enabling the chemical reagent in the container to flow to the at least one spray head through the liquid supply pipeline under the action of the pressure.

3 . The plate hanging device of claim 2 , wherein the speed of the at least one spray head for spraying the chemical reagent is in direct proportion to the pressure applied by the pressure device into the container;
rotating speed of the cylinder is in direct proportion to the speed of the at least one spray head for spraying the chemical reagent.

4 . The plate hanging device of claim 3 , wherein the at least one spray head comprises a plurality of spray heads, all of the plurality of spray heads are arranged above the cylinder, and the plurality of spray heads are arranged at equal intervals along a direction parallel to the axial line of the cylinder; the plurality of spray heads are arranged to face the surface to be jointed of the transfer plate.

5 . The plate hanging device of claim 3 , wherein the pressure device comprises a pressure source and an air supply pipeline, and two ends of the air supply pipeline are respectively connected with the pressure source and the container; the pressure source is used for generating the pressure and transferring the pressure into the container through the air in the air supply pipeline.

6 . The plate hanging device of claim 5 , wherein the control part comprises a first control module, a second control module and a matching module, and the first control module is used for controlling power generated by a power mechanism driving the cylinder to rotate; the second control module is used for controlling the pressure generated by the pressure source; the matching module is used for matching the power with the pressure to form a direct proportion relationship between the rotating speed of the cylinder and the speed of the at least one spray head for spraying the chemical reagent.

7 . The plate hanging device of claim 6 , wherein the plate hanging part comprises a tension source and a moving belt, position of the tension source is fixed, two ends of the moving belt are respectively connected with the tension source and a tail end edge of the transfer plate, and the moving belt can stretch or contract relative to the tension source; a starting end edge of the transfer plate is fixed on the cylinder;
the tension source is used for generating a tension and transferring the tension onto the transfer plate through the moving belt, for consistently keeping the part of the transfer plate not coiled on the cylinder at the stretched state.

8 . The plate hanging device of claim 7 , wherein the control part further comprises a detection module and a third control module, the detection module is used for detecting the real-time state of the part of the transfer plate not coiled on the cylinder; the third control module is used for controlling the tension source to generate a tension capable of consistently keeping the part of the transfer plate not coiled on the cylinder at the stretched state according to the detection result of the detection module.

9 . The plate hanging device of claim 8 , wherein the third control module is further used for controlling the tension source to pull back the moving belt to the position where the tension source is located after completely coiling the transfer plate on the surface of the cylinder.

10 . An alignment film coating system, comprising a plate hanging device used for coiling a transfer plate on the surface of a cylinder, wherein the plate hanging device comprises a plate hanging part and a control part, the plate hanging part is used for keeping the part of the transfer plate not coiled on the cylinder at a stretched state in a plate hanging process; the control part is used for controlling the cylinder to rotate to coil the transfer plate on the surface of the cylinder, the plate hanging device further comprises a liquid spray part, the liquid spray part is connected with the control part and is controlled by the control part to uniformly spray a chemical reagent onto the surface to be jointed of the transfer plate to increase the friction between the transfer plate and the cylinder, and the surface to be jointed is a surface to be jointed with the cylinder of the transfer plate.

11 . The alignment film coating system of claim 10 , wherein the liquid spray part comprises a container, at least one spray head, a pressure device and a liquid supply pipeline used for communicating the container with the at least one spray head; the pressure device is respectively connected with the control part and the container;
the container is used for containing the chemical reagent; the at least one spray head is used for spraying the chemical reagent onto the surface to be jointed of the transfer plate; the pressure device is controlled by the control part to apply a pressure into the container, for enabling the chemical reagent in the container to flow to the at least one spray head through the liquid supply pipeline under the action of the pressure.

12 . The alignment film coating system of claim 11 , wherein the speed of the at least one spray head for spraying the chemical reagent is in direct proportion to the pressure applied by the pressure device into the container;
rotating speed of the cylinder is in direct proportion to the speed of the at least one spray head for spraying the chemical reagent.

13 . The alignment film coating system of claim 12 , wherein the at least one spray head comprises a plurality of spray heads, all of the plurality of spray heads are arranged above the cylinder, and the plurality of spray heads are arranged at equal intervals along a direction parallel to the axial line of the cylinder; the plurality of spray heads are arranged to face the surface to be jointed of the transfer plate.

14 . The alignment film coating system of claim 12 , wherein the pressure device comprises a pressure source and an air supply pipeline, and two ends of the air supply pipeline are respectively connected with the pressure source and the container; the pressure source is used for generating the pressure and transferring the pressure into the container through the air in the air supply pipeline.

Assignees

• Boe Technology Group Co Ltd
• Ordos Yuansheng Optoelectronics Co Ltd

Inventors

• Wang Chengxiang
• Wang Huafeng

Classifications

• C23C14/50

  Substrate holders · CPC title

• G02F1/1337 Primary

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

• G02F1/133711 Primary

  by organic films, e.g. polymeric films · CPC title

• G02F1/13378

  by treatment of the surface, e.g. embossing, rubbing or light irradiation (G02F1/133711, G02F1/133734, G02F1/133753 take precedence) · CPC title

• G02F1/1303

  Apparatus specially adapted to the manufacture of LCDs · CPC title