Invention Grant
- Patent Title: Light-emitting device including substrate having cavity, and method for fabricating the light-emitting device
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Application No.: US14571897Application Date: 2014-12-16
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Publication No.: US09659524B2Publication Date: 2017-05-23
- 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: Robinson Intellectual Property Law Office
- Agent Eric J. Robinson
- Priority: JP11-174734 19990621
- Main IPC: G09G3/32
- IPC: G09G3/32 ; G09G3/3225 ; G09G3/3258 ; H01L27/12 ; H01L27/15 ; H01L27/32 ; H01L29/04 ; H01L29/06 ; H01L29/786 ; H01L33/62 ; G09G3/30 ; G09G3/20 ; H01L51/52

Abstract:
An EL display device capable of performing clear multi-gradation color display and electronic equipment provided with the EL display device are provided, wherein gradation display is performed according to a time-division driving method in which the luminescence and non-luminescence of an EL element (109) disposed in a pixel (104) are controlled by time, and the influence by the characteristic variability of a current controlling TFT (108) is prevented. When this method is used, a data signal side driving circuit (102) and a gate signal side driving circuit (103) are formed with TFTs that use a silicon film having a peculiar crystal structure and exhibit an extremely high operation speed.
Public/Granted literature
- US20150138174A1 EL DISPLAY DEVICE, DRIVING METHOD THEREOF, AND ELECTRONIC EQUIPMENT PROVIDED WITH THE EL DISPLAY DEVICE Public/Granted day:2015-05-21
Information query
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