Display device
US-2024078965-A1 · Mar 7, 2024 · US
EL display device, driving method thereof, and electronic equipment provided with the EL display device
US8941565B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8941565-B2 |
| Application number | US-201414456294-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 11, 2014 |
| Priority date | Jun 21, 1999 |
| Publication date | Jan 27, 2015 |
| Grant date | Jan 27, 2015 |
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Abstract
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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.
First claim
Opening claim text (preview).
What is claimed is: 1. A display device comprising: a substrate; and a pixel portion and a driving circuit portion which are located over the substrate, wherein the pixel portion comprises a pixel, the pixel comprising: a first transistor comprising a channel formation region; an interlayer insulating film over the first transistor; a first electrode over the first transistor with the interlayer insulating film interposed therebetween, the first electrode being electrical…
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Physics · mapped topic
Electricity · mapped topic
Electricity · mapped topic
- G09G3/2022Primary
Physics · mapped topic
Electricity · mapped topic
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- What does patent US8941565B2 cover?
- 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 characteris…
- Who is the assignee on this patent?
- Semiconductor Energy Lab
- What technology area does this patent fall under?
- Primary CPC classification G09G3/2022. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jan 27 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).