发明名称 |
Cell thickness detection method, cell thickness control system, and manufacturing method for liquid crystal device |
摘要 |
Light is transmitted through a compressing clamp which clamps the liquid crystal display panel 10, and the spectrum of light is obtained by a spectrometer 141. A cell thickness is detected based on a wavelength or a frequency at which the spectrum has the minimum or maximum value. The obtained cell thickness is compared with a desired value, and a pressure control unit 132 supplies the compressing clamp with a fluid in accordance with the result of the comparison.
|
申请公布号 |
US6618156(B2) |
申请公布日期 |
2003.09.09 |
申请号 |
US20010945341 |
申请日期 |
2001.08.30 |
申请人 |
SEIKO EPSON CORPORATION |
发明人 |
KUROIWA MASAHIRO |
分类号 |
G01B11/06;G02F1/13;G02F1/1341;G09F9/00;(IPC1-7):G01B11/06 |
主分类号 |
G01B11/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|