Research of an Intelligent Auto-Controlling System for LCD Screen Flicker

The application of LCD has been very common. One important inspection item for LCD manufacturers is screen flicker, and its optimization has become a crucial task. An automated inspection system that aims to achieve such a goal is presented. It uses photodetector to detect the degree of LCD screen f...

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Bibliographic Details
Published inJournal of display technology Vol. 12; no. 6; pp. 557 - 561
Main Authors Chen, Ying-Yun, Jwo, Ko-Wen, Chang, Rong-Seng
Format Journal Article
LanguageEnglish
Published New York IEEE 01.06.2016
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Algorithm design and analysis
Band-pass filters
Brightness
Display devices
Fixtures
Flicker
Inspection
LCD
Liquid crystal displays
photodetector
Photodetectors
Sampling
Screens
Tasks
VCOM voltage
Voltage
Voltage fluctuations
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Summary:The application of LCD has been very common. One important inspection item for LCD manufacturers is screen flicker, and its optimization has become a crucial task. An automated inspection system that aims to achieve such a goal is presented. It uses photodetector to detect the degree of LCD screen flicker and converts the detected result to digital signal by sampling circuit, acquires the degree of flickering by signal analysis, and applies signal control method to adjust LCD's VCOM voltage which optimize LCD flickering automatically to improve measurement efficiency and meet the product requirements. This translates into an improvement in efficiency by 90%, and the accuracy is also improved .
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:1551-319X
1558-9323
DOI:10.1109/JDT.2015.2506783