IP Library Granted Patent US 9,682,543
Granted Patent B2
US 9,682,543 · App. 14/537,428 · Granted Jun 20, 2017

System for laminating optical film and method for manufacturing display unit using the same

Inventors: Kyoung-Sik Kim (Daejeon, KR); Eung-Jin Jang (Daejeon, KR); Suk-Jae Lee (Daejeon, KR); Kyoung-Ho Cho (Daejeon, KR); Cheon-Ho Park (Daejeon, KR); Won-Cheul Ju (Daejeon, KR); Beom-Seok Lee (Daejeon, KR); Jea-Han Ryoo (Daejeon, KR)
Assignee: LG CHEM, LTD.
B32B38/1816B32B37/182B32B38/18B32B38/0004B32B2307/40B32B2457/20Y10T156/125Y10T156/1322Y10T156/1754
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Quick Facts
Patent No.
US 9,682,543
App. No.
14/537,428
Granted
Jun 20, 2017
Kind
B2
Abstract

A system for laminating an optical film according to an exemplary embodiment of the present disclosure includes a panel transfer unit to transfer a panel, a first laminating unit installed on a transfer line of the panel to laminate an optical film on a first surface of the panel along a first direction parallel to a transfer direction of the panel, and a second laminating unit installed on the transfer line of the panel to laminate an optical film full-cut into a predetermined length on a second surface of the panel along a direction perpendicular to the first direction.

Claims (28)

1. A system for laminating an optical film, comprising:

a panel transfer unit to transfer a panel along a straight line;

a first laminating unit installed on a straight transfer line of the panel to laminate first optical film on a first surface of the panel along a first direction parallel to a transfer direction of the panel along the straight transfer line; and

a second laminating unit installed on the straight transfer line of the panel to laminate second optical film full-cut into a predetermined length on a second surface of the panel along a second direction, which is perpendicular to the transfer direction of the panel along the straight transfer line and parallel to a surface of the panel,

wherein the second laminating unit comprise:

a laminating drum;

a cutter;

a second supply roll to supply a second optical film along a direction perpendicular to a surface of the panel; and

a direction change roll to change a direction to allow the second optical film, which is supplied by the second supply roll, to move along the second direction with the second optical film facing the second surface of the panel.

2. The system for laminating an optical film according to claim 1 , wherein the panel transfer unit includes a conveyor belt to support and convey the panel.

3. The system for laminating an optical film according to claim 1 , wherein the panel transfer unit includes a transfer roller to support and convey the panel.

4. The system for laminating an optical film according to claim 1 , wherein the panel transfer unit has a width corresponding to a width of the panel.

5. The system for laminating an optical film according to claim 1 , wherein the first laminating unit comprises:

a first supply roll to supply the first optical film; and

a laminating roll to laminate the supplied first optical film on the panel.

6. The system for laminating an optical film according to claim 5 , wherein the first laminating unit comprises a release sheet remover disposed between the first supply roll and the laminating roll to separate a release sheet attached to the first optical film.

7. The system for laminating an optical film according to claim 6 , wherein the first laminating unit comprises a collector roll to collect the release sheet separated from the first optical film.

8. The system for laminating an optical film according to claim 6 , wherein the first laminating unit comprises a cutter disposed between the first supply roll and the release sheet remover to half-cut the first optical film into a predetermined length.

9. The system for laminating an optical film according to claim 1 , wherein the first laminating unit comprises:

a first supply roll to supply the first optical film; and

a laminating drum to laminate the supplied first optical film on the panel.

10. The system for laminating an optical film according to claim 1 , wherein the

laminating drum of the second laminating unit is disposed between the second optical film facing the second surface of the panel and the second surface of the panel.

11. The system for laminating an optical film according to claim 10 , wherein the second laminating unit comprises a film holder disposed opposite to the laminating drum across the second optical film to hold a release sheet to allow the release sheet attached to the second optical film to be separated.

12. The system for laminating an optical film according to claim 11 , wherein the cutter of the second laminating unit is disposed between the second supply roll and the film holder to full-cut the second optical film into a predetermined length.

13. The system for laminating an optical film according to claim 10 , wherein the laminating drum separates and adsorbs the second optical film held by a film holder and laminates the second optical film on the second surface of the panel.

14. The system for laminating an optical film according to claim 10 , wherein the laminating drum has an adsorption hole formed on a periphery.

15. The system for laminating an optical film according to claim 10 , wherein an adsorption pad is attached onto the periphery of the laminating drum.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 30, 2023
From: SHANJIN OPTOELECTRONICS (SUZHOU) CO., LTD.
To: SHANJIN OPTOELECTRONICS (NANJING) CO., LTD.
Reel/Frame 065393/0902 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 20, 2021
From: LG CHEM LTD.
To: SHANJIN OPTOELECTRONICS (SUZHOU) CO., LTD.
Reel/Frame 056316/0076 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 11, 2014
From: KIM, KYOUNG SIK; JANG, EUNG-JIN; LEE, SUK-JAE; CHO, KYOUNG-HO; PARK, CHEON-HO; JU, WON-CHEUL; LEE, BEOM-SEOK; RYOO, JEA-HAN
To: LG CHEM, LTD.
Reel/Frame 034147/0109 →
Priority Claims (2)
KR 10-2014-0002582 · Jan 8, 2014 · national
KR 10-2014-0027932 · Mar 10, 2014 · national
Continuity (2)
Continuation PCTKR2014003606 · Apr 24, 2014
Related Publication 20150190998A1 · Jul 9, 2015