Invention Grant
- Patent Title: Electronic device and electronic apparatus
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Application No.: US14645021Application Date: 2015-03-11
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Publication No.: US09293483B2Publication Date: 2016-03-22
- Inventor: Yukio Yamauchi , Takeshi Fukunaga
- Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
- Applicant Address: JP Kanagawa-ken
- Assignee: SEMICONDUCTOR ENERGY LABORATORY CO. LTD.
- Current Assignee: SEMICONDUCTOR ENERGY LABORATORY CO. LTD.
- Current Assignee Address: JP Kanagawa-ken
- Agency: Nixon Peabody LLP
- Agent Jeffrey L. Costellia
- Priority: JP11-119466 19990427
- Main IPC: H01L27/12
- IPC: H01L27/12 ; H01L29/66 ; H01L29/786 ; H01L27/32 ; H01L27/13
Abstract:
An EL display having high operating performance and reliability is provided. LDD regions 15a through 15d of a switching TFT 201 formed in a pixel are formed such that they do not overlap gate electrodes 19a and 19b to provide a structure which is primarily intended for the reduction of an off-current. An LDD region 22 of a current control TFT 202 is formed such that it partially overlaps a gate electrode 35 to provide a structure which is primarily intended for the prevention of hot carrier injection and the reduction of an off-current. Appropriate TFT structures are thus provided depending on required functions to improve operational performance and reliability.
Public/Granted literature
- US20150187822A1 ELECTRONIC DEVICE AND ELECTRONIC APPARATUS Public/Granted day:2015-07-02
Information query
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