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http://dx.doi.org/10.5573/ieie.2014.51.7.230

A Method of Inspecting ITO Pattern and Node Using Measured Data of Each Node's Mutual Capacitance ITO Sensor  

Han, Joo-Dong (Dept of Electronics Eng, Kyung Hee University)
Moon, Byoung-Joon (Dept of Automotive Eng, Daeduk College)
Choi, Kyung-Jin (MIRTEC)
Kim, Dong-Han (Dept of Electronics Eng, Kyung Hee University)
Publication Information
Journal of the Institute of Electronics and Information Engineers / v.51, no.7, 2014 , pp. 230-238 More about this Journal
Abstract
In this paper, we propose the possible way of accurate analysis and examination of ITO sensor to discriminate whether mutual capacitance ITO sensor is defective by using mutual capacitance of data in each node which consists of electrodes inside of ITO sensor. We have analyzed the structure characteristic of mutual capacitance ITO sensor which is used as an input device for not only small size electronics like mobile phone and tablets but also big size electronics and designed the circuit to inspect ITO sensor using touch screen panel IC. Set a variable related with mutual capacitance of charge and discharge and Implement to find and analyze accurate position when defect is made through the data from each node of ITO sensor. First, we can set a yield effective range through the first experiment data of mutual capacitance ITO sensor and by using the data of each node of ITO sensor which is the result from the second experiment, we can verify accuracy and effectiveness of effective range from the first experiment as a sample which is used in this experiment.
Keywords
ITO; TSP; TSM; ACF; Mutual Capacitance;
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Times Cited By KSCI : 1  (Citation Analysis)
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