Display device

Patent metadata

Field	Value
Publication number	US-10115337-B2
Application number	US-201514963528-A
Country	US
Kind code	B2
Filing date	Dec 9, 2015
Priority date	Apr 29, 2015
Publication date	Oct 30, 2018
Grant date	Oct 30, 2018

Abstract

A display device includes a plurality of signal lines formed in a display area, a pixel array connected to the plurality of signal lines and including a plurality of pixels arranged in a matrix, a scan driving circuit and a data driving circuit formed in a non-display area and electrically connected to the plurality of signal lines, and a dummy pattern formed in the non-display area in a position adjacent to the pixel array along an outer boundary of the pixel array. The dummy pattern is formed to be parallel to a first pixel in a position spaced apart from the first pixel located at an edge of the pixel array in the non-display area by a predetermined distance.

First claim

What is claimed is:

1. A display device comprising:
a plurality of signal lines formed in a display area;
a pixel array connected to the plurality of signal lines, the pixel array including a plurality of pixels each including a pixel pattern;
a scan driving circuit and a data driving circuit located in a non-display area and electrically connected to the plurality of signal lines; and
a dummy wiring line of a continuous thickness formed in the non-display area in a position adjacent to the pixel array, the dummy wiring line extending continuously along an entire periphery of the pixel array and having a shape of a closed loop around the pixel array, and
wherein the dummy wiring line is spaced apart from the periphery of the pixel array by a predetermined distance,
wherein the dummy wiring line comprises:
a first dummy wiring line extending along a first side of the pixel array in a first direction;
a second dummy wiring line extending along a second side of the pixel array parallel to the first side;
a third dummy wiring line extending along a third side of the pixel array in a second direction perpendicular to the first direction; and
a fourth dummy wiring line extending along a fourth side of the pixel array parallel to the third side,

wherein at least one of the first and second dummy wiring lines is at an outer boundary region between the pixel array and the scan driving circuit,
wherein at least one of the third and fourth dummy wiring lines is at an outer boundary between the pixel array and the data driving circuit, and
wherein the first dummy wiring line is in a different layer from the third dummy wiring line at one end of the third dummy wiring line via a contact hole and a bridge.

2. The display device of claim 1 , wherein:
the predetermined distance is the same as a distance between two adjacent pixel patterns.

3. The display device of claim 1 , wherein:
a thickness of the dummy wiring line is the same as a thickness of the pixel patterns.

4. The display device of claim 1 , wherein:
the first and second dummy wiring lines are disposed at a same layer as each other and at a different layer from the third and fourth dummy wiring lines and electrically connected to the third and fourth dummy wiring lines via a bridge, respectively.

5. The display device of claim 4 , wherein:
the first and second dummy wiring lines are formed in an active layer, and the third and fourth dummy wiring lines are formed in a gate layer which is a different layer from the active layer.

6. The display device of claim 5 , wherein:
the second dummy wiring lines is electrically connected to the fourth dummy wiring line via a contact hole and a bridge.

7. The display device of claim 1 , wherein:
the first and second dummy wiring lines are formed in any one of an active layer, and a data metal layer that are different layers from each other and are included in an organic light emitting device.

8. The display device of claim 1 , wherein:
both ends of a wiring line included in the dummy wiring line are connected to a ground wiring line or a power wiring line to be used as a static electricity shielding circuit.

9. The display device of claim 1 , wherein:
a static electricity diode circuit is connected to the dummy wiring line.

Assignees

• Samsung Display Co Ltd

Inventors

• Kim Tae Joon
• Kim Sung Eun
• Hong Min Jong

Classifications

• G09G2300/0426

  Layout of electrodes and connections · CPC title

• G09G2300/0413

  Details of dummy pixels or dummy lines in flat panels · CPC title

• G09G2330/08

  Fault-tolerant or redundant circuits, or circuits in which repair of defects is prepared · CPC title

• G09G3/3225 Primary

  using an active matrix · CPC title

• G09G2330/06

  Handling electromagnetic interferences [EMI], covering emitted as well as received electromagnetic radiation · CPC title