Invention Grant
- Patent Title: Display device and manufacturing method thereof
- Patent Title (中): 显示装置及其制造方法
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Application No.: US12834345Application Date: 2010-07-12
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Publication No.: US07897973B2Publication Date: 2011-03-01
- Inventor: Shunpei Yamazaki , Mitsuaki Osame
- Applicant: Shunpei Yamazaki , Mitsuaki Osame
- Applicant Address: JP Atsugi-shi, Kanagawa-ken
- Assignee: Semiconductor Energy Laboratory Co., Ltd.
- Current Assignee: Semiconductor Energy Laboratory Co., Ltd.
- Current Assignee Address: JP Atsugi-shi, Kanagawa-ken
- Agency: Robinson Intellectual Property Law Office, P.C.
- Agent Eric J. Robinson
- Priority: JP2002-276295 20020920
- Main IPC: H01L29/76
- IPC: H01L29/76 ; H01L31/036 ; H01L31/112 ; H01L23/48 ; H01L23/52 ; H01L29/40
Abstract:
It is an object of the present invention to prevent an influence of voltage drop due to wiring resistance, trouble in writing of a signal into a pixel, and trouble in gray scales, and provide a display device with higher definition, represented by an EL display device and a liquid crystal display device.In the present invention, a wiring including Cu is provided as an electrode or a wiring used for the display device represented by the EL display device and the liquid crystal display device. Besides, sputtering is performed with a mask to form the wiring including Cu. With such structure, it is possible to reduce the voltage drop and a deadened signal.
Public/Granted literature
- US20100276695A1 DISPLAY DEVICE AND MANUFACTURING METHOD THEREOF Public/Granted day:2010-11-04
Information query
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