US 9,287,331 B2 · Display unit

Abstract

A display unit with which lowering of long-term reliability of a transistor is decreased is provided. The display unit includes a display section having a plurality of organic EL devices with light emitting color different from each other and a plurality of pixel circuits that are singly provided for every said organic EL device for every pixel. The pixel circuit has a first transistor for writing a video signal, a second transistor for driving the organic EL device based on the video signal written by the first transistor, and a retentive capacity, and out of the first transistor and the second transistor, a third transistor provided correspondingly to a second organic EL device adjacent to a first organic EL device is arranged farther from the first organic EL device than a first retentive capacity provided correspondingly to the second organic EL device out of the retentive capacity.

Drawings

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Drawings

Claims21

Dependent claims

A display unit comprising:

a display section having a first pixel, second pixel, and a third pixel,
wherein
the first pixel includes a first driving circuit configured to drive a first organic EL device,
the second pixel includes a second driving circuit configured to drive a second organic EL device,
the third pixel includes a third driving circuit configured to drive a third organic EL device,
the second driving circuit is adjacent to the first driving circuit and the third driving circuit,
the second driving circuit is located between the first driving circuit and the third driving circuit,
the first driving circuit includes a first driving transistor configured to drive the first organic EL device, and a first capacitor connected to a gate electrode of the first driving transistor,
the second driving circuit includes a second driving transistor configured to drive the second organic EL device, and a second capacitor connected to a gate electrode of the second driving transistor,
the third driving circuit includes a third driving transistor configured to drive the third organic EL device, and a third capacitor connected to a gate electrode of the third driving transistor,
a channel region of the second driving transistor is arranged farther from a light emission area of the first organic EL device than the second capacitor,
a channel region of the third driving transistor is arranged farther from a light emission area of the second organic EL device than the third capacitor,
a channel region of the first driving transistor is arranged farther from a light emission area of the second organic EL device than the first capacitor, and
the second organic EL device configured to emit blue light overlaps the second capacitor in a plan view.

11 more elements

A display unit comprising:

a display section having a first pixel circuit, a second pixel circuit and a third pixel circuit arranged in a line;
wherein:
the second pixel circuit is adjacent to the first pixel circuit and the third pixel circuit, and is located between the first pixel circuit and the third pixel circuit,
each of the first, second, and third pixel circuit is connected to an organic EL device,
each of the first, second, and third pixel circuit includes a transistor configured to drive the organic EL device, and a capacitor connected to a gate electrode of the transistor,
the transistor has a channel region opposite to the gate electrode,
the organic EL device is formed upper than the channel region of the transistor in a cross section,
the capacitor includes a first electrode formed between the organic EL device and the channel region of the transistor in a cross section,
the channel region of the transistor of the second pixel circuit is arranged farther from the organic EL device of the first pixel circuit than the capacitor of the second pixel circuit,
the channel region of the transistor of the third pixel circuit is arranged farther from the organic EL device of the second pixel circuit than the capacitor of the third pixel circuit, and
the channel region of the transistor of the first pixel circuit is arranged farther from the organic EL device of the second pixel circuit than the capacitor of the first pixel circuit.

8 more elements

Dependencies are inferred from the claim text.

Description7,479 words

Summary1,917 words

#1. Field of the Invention

#The present invention relates to a display unit including an organic EL (electro luminescence) device.

#2. Description of the Related Art

Brief description of the drawings19 figures

#FIG. 1 is a schematic view of a display unit according to an embodiment of the invention.

#FIG. 2 is a circuit diagram of the pixel of FIG. 1.

#FIG. 3 is a layout diagram of the red-use pixel of FIG. 1.

Detailed description5,205 words

#An embodiment of the invention will be hereinafter described in detail with reference to the drawings. The description will be given in the following order:

#1. Schematic structure

#2. Layout

Facts

Application

14/616,941Filed 9 Feb 2015 · continuation

Priority

JP 2009-06171313 Mar 2009

Published

US 2015/0179709 A125 Jun 2015

Granted

15 Mar 2016

Term ends

5 Mar 2030

Estimated · how

20 years from earliest known nonprovisional domestic filing plus recorded patent term adjustment. Maintenance-fee lapses, terminal disclaimers and statutory extensions have not been checked. The continuity chain may be incomplete; this is not an enforceability determination.

Classification11 codes

H10K 59/35
Devices specially adapted for multicolour light emission: comprising red-green-blue [RGB] subpixels
G09G 3/3233
Using an active matrix: with pixel circuitry controlling the current through the light-emitting element
H10K 59/1213
Characterised by the geometry or disposition of pixel elements: the pixel elements being TFTs
H10K 59/1216
Characterised by the geometry or disposition of pixel elements: the pixel elements being capacitors

Family

Application12/660,846Parent of this continuation · filed 5 Mar 2010

Application14/066,106Parent of this continuation · filed 29 Oct 2013

US 8,610,122 B2Parent of this continuation · filed 17 Dec 2013

Application14/197,778Parent of this continuation · filed 5 Mar 2014

US 8,742,419 B2Parent of this continuation · filed 3 Jun 2014

Application14/454,211Parent of this continuation · filed 7 Aug 2014

US 8,841,672 B2Parent of this continuation · filed 23 Sep 2014

US 2015/0179709 A1Pre-grant publication · published 25 Jun 2015

US 9,059,122 B2Parent of this continuation

Application14/454,211Parent of this continuation

Application14/197,778Parent of this continuation

Application14/066,106Parent of this continuation

US 2010/0230681 A1Published application

US 2014/0054575 A1Published application

US 2014/0183510 A1Published application

US 2014/0346490 A1Published application

US 9,287,331 B2This patent

From the US filing history. Foreign family members aren’t listed.

Timeline

13 Mar 2009Priority claimedJP 2009-061713
9 Feb 2015Application filedUS 14/616,941
10 Feb 2015Assigned to Sony Corporationassignment of assignor's interest
25 Jun 2015PublishedUS 2015/0179709 A1
15 Mar 2016GrantedUS 9,287,331 B2
12 Oct 2026TodayWithin its term
5 Mar 2030Term endsEstimated

Display unit

Life of this patent

Display unit

Life of this patent

Life of this patent

Abstract

Drawings

Drawings

Claims21

Description7,479 words

Drawings

Classification11 codes

Life of this patent

Description7,479 words