发明名称 CELL INSPECTION APPARATUS AND CELL INSPECTION METHOD
摘要 PROBLEM TO BE SOLVED: To provide a cell inspection apparatus and cell inspection method capable of efficiently carrying out inspection with high reliability by detecting the objective region in spite of rough positioning in correspondence to production of a small quantity in diversified kinds when carrying out the defect inspection of liquid crystal products in the state before sticking of a polarizing plate. SOLUTION: Back light illumination 11 is put out and a liquid crystal cell substrate 8 is projected from above by coaxial vertical illumination 7, by which the image of the part coated with a sealing material is acquired when carrying out the defect inspection of the liquid cell substrate 8 before sticking of the polarizing plate with this cell inspection apparatus. The inspection is carried out after the objective region for the defect inspection of the intrinsically transparent liquid cell substrate 8 is confined by using the image. With regards to the other regions, the presence or absence of the defect is disregarded, by which a yield is improved and the processing time is shortened.
申请公布号 JP2000275596(A) 申请公布日期 2000.10.06
申请号 JP19990083529 申请日期 1999.03.26
申请人 RICOH CO LTD 发明人 KAMIJO TADAHIRO
分类号 G01M11/00;G02F1/13;(IPC1-7):G02F1/13 主分类号 G01M11/00
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