IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0975468
(2004-10-29)
|
등록번호 |
US-7340322
(2008-03-04)
|
우선권정보 |
KR-10-2003-0076951(2003-10-31) |
발명자
/ 주소 |
- Lee,Jeong Joon
- Song,Hyun Ho
- Choi,Joung Won
|
출원인 / 주소 |
|
대리인 / 주소 |
McKenna Long & Aldridge LLP
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
39 |
초록
▼
A rubbing apparatus and method for liquid crystal display panels are provided. The apparatus includes at least one cassette for keeping at least one mother substrate to be rubbed, an internal port for keeping at least one dummy substrate for performing alignment of a rubbing material, at least one r
A rubbing apparatus and method for liquid crystal display panels are provided. The apparatus includes at least one cassette for keeping at least one mother substrate to be rubbed, an internal port for keeping at least one dummy substrate for performing alignment of a rubbing material, at least one rubbing unit for receiving the at least one mother substrate from the at least one cassette to perform a rubbing thereon using the rubbing material, or receiving the at least one dummy substrate from the internal port to perform an alignment process of the rubbing material, and a robot for transferring or returning the at least one mother substrate kept in the at least one cassette, the at least one dummy substrate kept in the internal port, the at least one mother substrate which has been rubbed in the at least one rubbing unit, or the at least one dummy substrate on which the alignment process of the rubbing material has been performed.
대표청구항
▼
What is claimed is: 1. A rubbing apparatus for a liquid crystal display panel, the apparatus comprising: at least one cassette for keeping at least one mother substrate to be rubbed; an internal port for keeping at least one dummy substrate for performing alignment of a rubbing material; at least o
What is claimed is: 1. A rubbing apparatus for a liquid crystal display panel, the apparatus comprising: at least one cassette for keeping at least one mother substrate to be rubbed; an internal port for keeping at least one dummy substrate for performing alignment of a rubbing material; at least one rubbing unit for receiving the at least one mother substrate from the at least one cassette to perform a rubbing thereon using the rubbing material, or receiving the at least one dummy substrate from the internal port to perform an alignment process of the rubbing material; and a robot for transferring or returning the at least one mother substrate kept in the at least one cassette, the at least one dummy substrate kept in the internal port, the at least one mother substrate which has been rubbed in the at least one rubbing unit, or the at least one dummy substrate on which the alignment process of the rubbing material has been performed. 2. The apparatus of claim 1, wherein the internal port is connected to the robot so that the at least one mother substrate and the at least one dummy substrate can be moved by the robot to the at least one cassette or to the at least one rubbing unit. 3. The apparatus of claim 1, wherein the at least one dummy substrate is formed of a same material as the at least one mother substrate. 4. The apparatus of claim 1, wherein the at least one dummy substrate has a same size as the at least one mother substrate. 5. The apparatus of claim 1, wherein an alignment film is on the at least one dummy substrate. 6. The apparatus of claim 5, wherein the alignment film comprises polyimide. 7. The apparatus of claim 1, wherein the internal port includes a cassette loaded with the at least one dummy substrate. 8. The apparatus of claim 1, wherein the rubbing material is a rubbing cloth. 9. A rubbing method for a liquid crystal display panel, the method comprising: keeping at least one mother substrate to be rubbed in at least one cassette; keeping at least one dummy substrate in an internal port, the at least one dummy substrate being used to perform an alignment process of a rubbing material; automatically transferring the at least one mother substrate kept in the at least one cassette, or the at least one dummy substrate kept in the internal port to at least one rubbing unit by a robot; and rubbing by the at least one rubbing unit the at least one mother substrate transferred to the at least one rubbing unit using the rubbing material, or performing the alignment process of the rubbing material on the at least one dummy substrate. 10. The method of claim 9, further comprising: automatically returning to the internal port the at least one mother substrate kept in the at least one cassette, or the at least one dummy substrate kept in the internal port, or the at least one mother substrate which has been rubbed in the at least one rubbing unit, or the at least one dummy substrate on which the alignment process of the rubbing material has been performed in the at least one rubbing unit. 11. The method of claim 9, wherein the at least one dummy substrate is formed of a same material as the at least one mother substrate. 12. The method of claim 9, wherein the at least one dummy substrate has a same size as the at least one mother substrate. 13. The method of claim 9, further comprising: forming an alignment film on the at least one dummy substrate on which the rubbing material is to be aligned, prior to the alignment process of the rubbing material. 14. The method of claim 13, wherein the alignment film is formed of polyimide. 15. The method of claim 9, further comprising: loading into the internal port a cassette loaded with the at least one dummy substrate. 16. The method of claim 9, further comprising: automatically transferring the at least one dummy substrate kept in the internal port by the robot to the at least one rubbing unit and rubbing the rubbing material on the at least one dummy substrate for several times, if defective rubbing of the at least one mother substrate after being rubbed is detected. 17. The method of claim 16, further comprising: automatically returning the at least one dummy substrate to the internal port from the at least one rubbing unit after the re-alignment process of the rubbing material is completed. 18. The method of claim 9, wherein the rubbing material is a rubbing cloth.
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