Proceedings of the Korean Society of Precision Engineering Conference (한국정밀공학회:학술대회논문집)
- 2005.06a
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- Pages.946-949
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- 2005
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- 2005-8446(pISSN)
Automatic Inspection for LCD Panel Defect
LCD(Liquid Crystal Display) Panel의 결점 검사
- Lee Y.J. (Control & Measurement) ;
- Lee J.H. (Control & Measurement) ;
-
Ko K.W.
(Control & Measurement) ;
- Cho S.Y. (Control & Measurement) ;
- Lee J.H. (Control & Measurement)
- 이유진 (선문대학교 제어 계측학과) ;
- 이중현 (선문대학교 제어 계측학과) ;
-
고국원
(선문대학교 제어 계측학과) ;
- 조수용 (선문대학교 제어 계측학과) ;
- 이정훈 (선문대학교 제어 계측학과)
- Published : 2005.06.01
Abstract
This paper deals with the algorithm development that inspects defects such as Bright Defect Dots, Dark Defect Dots, and Line Defect caused by the process of LCD(Liquid Crystal Display). While most of LCD production process is automated, the inspection of LCD panel and its appearance depends on manual process. So, the quality of the inspection is affected by the condition of worker. Especially, the more LCD size increases, the more the worker feels fatigued, which causes the probability of miss judgement. So, the automated inspection is required to manage the consistent quality of the product and reduce the production costs. In this paper, to solve these problems, we developed the imaging processing algorithm to inspect the defects in captured image of LCD. Experimental results reveal that we can recognize various types of defect of LCD with good accuracy and high speed.