IP Library Granted Patent US 10,074,311
Granted Patent B2
US 10,074,311 · App. 15/710,068 · Granted Sep 11, 2018

Display device

Inventors: Toshihiro Sato (Mobara, JP); Yoshiyuki Kaneko (Hachiouji, JP)
Assignee: Samsung Display Co., Ltd.
G09G3/3233G09G3/32G09G3/3225G09G3/3266G09G3/3275H01L27/3248H01L27/3262H01L27/3265H01L27/3276H01L51/524H01L51/5228H01L51/5246G09G3/2003G09G2300/04G09G2300/0426G09G2300/0842G09G2310/0262G09G2310/0272G09G2310/0275G09G2310/0286G09G2310/0289G09G2330/04H01L27/124H01L27/1255
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Quick Facts
Patent No.
US 10,074,311
App. No.
15/710,068
Granted
Sep 11, 2018
Kind
B2
Abstract

A display module including a substrate having a plurality of pixels, a data line that supplies a data signal to a pixel, a current supply line that supplies electric current to the pixel, a data driving circuit that supplies a data signal to the data line, and a gate driving circuit thereon. The plurality of pixels are arranged in a display area of the substrate, and each of the plurality of pixels includes a light emitting device, a first thin film transistor connected to the data line that supplies the data signal, a second thin film transistor connected to the current supply line, and a capacitor. The light emitting device includes a first electrode layer connected to the second thin film transistor, an organic layer formed on the first electrode layer, and a second electrode layer formed on the organic layer.

Claims (35)

1. A display device comprising:

a display region including pixels;

scanning lines configured to select the pixels;

data lines configured to supply data signals to the pixels;

current supply lines configured to supply electric current to the pixels;

a current supply bus line connected to the current supply lines;

a gate driving circuit configured to drive the scanning lines; and

a data driving circuit configured to drive the data lines, wherein

each of the plurality of pixels includes:

a light emitting element;

a thin film transistor between one of the current supply lines and the light emitting element; and

a capacitor storing a gate voltage of the thin film transistor,

the light emitting element includes:

a first electrode layer connected to the thin film transistor;

an organic layer above the first electrode layer; and

a second electrode layer above the organic layer, wherein

the second electrode layer is connected to a third electrode layer located outside the display region and formed on a layer at a level which is lower than that of the second electrode layer,

the third electrode layer runs in a direction substantially in parallel to a side of the display region that is located adjacent to the gate driving circuit,

the third electrode layer is connected to a first terminal pad,

the current supply bus line is connected to a second terminal pad,

the data driving circuit is connected to a third terminal pad, and

the second terminal pad is disposed between the first terminal pad and the third terminal pad.

2. The display device of claim 1 , wherein

the first terminal pad and the second terminal pad are formed in the same layer.

3. The display device of claim 1 , wherein

the gate driving circuit is connected to a fourth terminal pad, and

the third terminal pad and the fourth terminal pad are formed in the same layer.

4. The display device of claim 1 , wherein

the current supply bus line and the third electrode layer are arranged without overlapping each other.

5. The display device of claim 1 , further comprising:

a first wire connecting the third electrode layer with the first terminal pad, wherein

the first wire has a bent portion.

6. The display device of claim 1 , further comprising:

a second wire connecting the current supply bus line with the second terminal pad, wherein

the second wire has a bent portion.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 13, 2018
From: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.; JAPAN DISPLAY INC.
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 046348/0407 →
Priority Claims (1)
JP 2001-092836 · Mar 28, 2001 · national
Continuity (11)
Continuation 15343598 · Nov 4, 2016
Continuation 15268753 · Sep 19, 2016
Continuation 14730160 · Jun 3, 2015
Continuation 14446489 · Jul 30, 2014
Continuation 13874135 · Apr 30, 2013
Continuation 13450523 · Apr 19, 2012
Continuation 13225980 · Sep 6, 2011
Continuation 12426368 · Apr 20, 2009
Continuation 11264050 · Nov 2, 2005
Continuation 10105308 · Mar 26, 2002
Related Publication 20180012545A1 · Jan 11, 2018