Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Shunpei Yamazaki0
Hideaki Kuwabara0
Yasuyuki Arai0
Date of Patent
June 12, 2012
Patent Application Number
12789382
Date Filed
May 27, 2010
Patent Citations Received
Patent Primary Examiner
Patent abstract
A TFT is manufactured using at least five photomasks in a conventional liquid crystal display device, and therefore the manufacturing cost is high. By performing the formation of the pixel electrode, the source region and the drain region by using three photomasks in three photolithography steps, a liquid crystal display device prepared with a pixel TFT portion, having a reverse stagger type n-channel TFT, and a storage capacitor can be realized, FIG. 2.
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