Title:
画像分析を用いた偏光板のムラ検査方法及びこれを用いた偏光板のムラ自動検査システム
Document Type and Number:
Japanese Patent JP2010534351
Kind Code:
A
Abstract:
There is provided an automatic inspection system for inspecting stains in a polarizing plate due to uneven dyeing, the automatic inspection system including a light source; an inspection unit positioned in the front of the light source and including at least two reference polarizing plates whose polarizing axes are arranged in parallel with each other and an objective polarizer or objective polarizing plate positioned between the reference polarizing plates and arranged so that the polarizing axis of the objective polarizer or objective polarizing plate is orthogonal to the polarizing axes of the reference polarizing plates; an imaging unit taking a picture of the inspection unit to collect image data; and an arithmetic operation unit analyzing the image data collected in the imaging unit to determine whether the objective polarizer or objective polarizing plate is inferior.
Inventors:
Lee, Joo Soon
Ra, Kyung-Il
Choi, Yong-Sun
Ra, Kyung-Il
Choi, Yong-Sun
Application Number:
JP2010518132A
Publication Date:
November 04, 2010
Filing Date:
January 07, 2009
Export Citation:
Assignee:
LG HAUSYS,LTD.
International Classes:
G02B5/30
Domestic Patent References:
| JPH06148095A | 1994-05-27 | |||
| JP2001349839A | 2001-12-21 | |||
| JP2007170961A | 2007-07-05 | |||
| JP2003016443A | 2003-01-17 |
Attorney, Agent or Firm:
Longhua International Patent Service Corporation