Invention Grant
US08830146B2 EL display device, driving method thereof, and electronic equipment provided with the EL display device
有权
EL显示装置及其驱动方法以及设置有EL显示装置的电子设备
- Patent Title: EL display device, driving method thereof, and electronic equipment provided with the EL display device
- Patent Title (中): EL显示装置及其驱动方法以及设置有EL显示装置的电子设备
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Application No.: US14031088Application Date: 2013-09-19
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Publication No.: US08830146B2Publication Date: 2014-09-09
- Inventor: Yukio Yamauchi , Takeshi Fukunaga
- Applicant: Semiconductor Energy Laboratory Co., Ltd.
- 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: JP11-174734 19990621
- Main IPC: G09G3/30
- IPC: G09G3/30

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
- US20140015872A1 EL DISPLAY DEVICE, DRIVING METHOD THEREOF, AND ELECTRONIC EQUIPMENT PROVIDED WITH THE EL DISPLAY DEVICE Public/Granted day:2014-01-16
Information query
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