Display panel, display device, and tiled display device

Patent metadata

Field	Value
Publication number	US-10120227-B2
Application number	US-201615147266-A
Country	US
Kind code	B2
Filing date	May 5, 2016
Priority date	Sep 30, 2015
Publication date	Nov 6, 2018
Grant date	Nov 6, 2018

Abstract

A display device includes a first display panel including a first base substrate, a second base substrate disposed on the first base substrate, and a first metal layer disposed on the first base substrate, and a second display panel including a third base substrate disposed on the same plane on which the first base substrate is disposed, a fourth base substrate disposed on the third base substrate and on the same plane on which the second base substrate is disposed, and a second metal layer disposed on the third base substrate, where the second display panel is disposed on one side of the first display panel, and the second base substrate and the third base substrate partially overlap each other when the first display panel and the second display panel are seen from a thickness direction thereof.

First claim

What is claimed is:

1. A display device comprising:
a first display panel including a first base substrate, a first metal layer disposed on the first base substrate, and a second base substrate facing the first base substrate, the first metal layer disposed between the first base substrate and the second base substrate;
a second display panel including a third base substrate disposed on the same plane on which the first base substrate is disposed, a second metal layer disposed on the third base substrate, and a fourth base substrate facing the third base substrate and disposed on the same plane on which the second base substrate is disposed, the second metal layer disposed between the third base substrate and the fourth base substrate; and
a first conductive tape disposed on the first base substrate and the third base substrate in an overlap region,
wherein
the second base substrate is divided into a first region overlapping the first base substrate and a second region non-overlapping the first base substrate,
the third base substrate is divided into a third region overlapping the fourth base substrate and a fourth region non-overlapping the fourth base substrate,
the overlap region, in which the second region and the fourth region overlap each other, is defined between the first region and the third region in the plan view, and
the second display panel is disposed on one side of the first display panel in a plan view, and the second base substrate and the third base substrate partially overlap each other when the first display panel and the second display panel are seen from a thickness direction thereof.

2. The display device of claim 1 , wherein
the first metal layer includes a first gate line extending in a first direction and a first data line extending in a second direction intersecting the first direction,
the second metal layer includes a second gate line extending in the first direction and a second data line extending in the second direction, and
the first display panel and the second display panel are disposed in parallel in the first direction, and the first gate line and the second gate line are electrically connected to each other.

3. The display device of claim 2 , further comprising a third display panel including:
a fifth base substrate disposed on the same plane on which the first base substrate is disposed;
a sixth base substrate facing the fifth base substrate; and
a third metal layer disposed between the fifth base substrate and the sixth base substrate,
wherein the first display panel and the third display panel are disposed in parallel in the second direction, and the second base substrate and the fifth base substrate partially overlap each other.

4. The display device of claim 3 , wherein the third metal layer includes a third gate line extending in the first direction and a third data line extending in the second direction, and the first data line and the third data line are electrically connected to each other.

5. The display device of claim 4 , further comprising a second conductive tape disposed on the first base substrate and the fifth base substrate, wherein the second conductive tape electrically connects the first data line and the third data line.

6. The display device of claim 2 , wherein the first conductive tape electrically connects the first gate line and the second gate line.

7. The display device of claim 1 , wherein:
the first base substrate has a rectangular shape;
the second base substrate disposed on the first base substrate has a rectangular shape; and
a liquid crystal layer disposed between the first base substrate and the second base substrate,
wherein,
one vertex among four vertices of the first base substrate overlaps the second base substrate, and remaining three vertices among the four vertices do not overlap the second base substrate in the plan view, and
one vertex among four vertices of the second base substrate overlaps the first base substrate, and remaining three vertices among the four vertices do not overlap the first base substrate in the plan view.

8. The display device of claim 7 , wherein the first base substrate includes two edges extending in a first direction and the other two edges extending in a second direction orthogonal to the first direction, and the second base substrate includes two edges extending in the first direction and the other two edges extending in the second direction.

9. A tiled display device comprising a first display panel and a second display panel, wherein
the first display panel includes:
a first substrate unit including a first base substrate, a first gate line disposed on the first base substrate, and a first data line disposed on the first base substrate; and
a second substrate unit including a second base substrate, disposed on the first substrate unit and shifted in a predetermined direction with respect to the first substrate unit in a plan view, thereby being divided into a first region overlapping the first substrate unit and a second region non-overlapping the first substrate unit, and
the second display panel includes:
a third substrate unit including a third base substrate, a second gate line disposed on the third base substrate, and a second data line disposed on the second base substrate; and
a fourth substrate unit including a fourth base substrate, disposed on the third substrate unit and shifted in a predetermined direction with respect to the third substrate unit in the plan view, thereby partially overlapping the third substrate unit, wherein the third base substrate is divided into a third region overlapping the fourth substrate unit and a fourth region non-overlapping the fourth substrate unit in the plan view, and the second region partially overlaps the fourth region in the plan view, and
further comprising a conductive tape disposed in an overlap region,
wherein the conductive tape is adhered to the first substrate unit and the third substrate unit, and
wherein the overlap region, in which the second region and the fourth region overlap each other, is defined between the first region and the third region in the plan view.

10. The tiled display device of claim 9 , wherein
the first display panel is adjacent to and disposed next to the second display panel, the third substrate unit is disposed next to the first substrate unit, the second substrate unit is disposed on the first substrate unit and the third substrate unit, and the fourth substrate unit is disposed next to the second substrate unit and on the third substrate unit.

11. The tiled display device of claim 9 , wherein the conductive tape electrically connects the first gate line of the first substrate unit and the second gate line of the third substrate unit, or electrically connects the first data line of the first substrate unit and the second data line of the third substrate unit.

Assignees

• Samsung Display Co Ltd

Inventors

• Yu Sanghee
• Kim Byung-Chul
• Park Jaehong
• Yoon Won-Gap
• JEON Youngjoo
• Tak Kyungseon

Classifications

• G02F1/133512

  Light shielding layers, e.g. black matrix (G02F1/136209 takes precedence) · CPC title

• G02F1/13336 Primary

  Combining plural substrates to produce large-area displays, e.g. tiled displays · CPC title