Display device and tiled display device including the same
AssigneeSamsung Display Co., Ltd.
InventorsJae Been LEE, Yi Joon AHN, Sung Hoon KIM, Eun Kyung YEON
Life of this patent
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Abstract
A display device includes: a substrate comprising a first contact hole; a thin-film transistor layer on a first surface of the substrate and comprising a plurality of insulating layers and a thin-film transistor; an etching stopper on one or more of the insulating layers and contacting the substrate through a second contact hole surrounding the first contact hole in a plan view; a connection line on the etching stopper; and a pad part on a second surface of the substrate opposite the first surface of the substrate and connected to the connection line through the first contact hole.
Claims20
A display device comprising:
- a substrate comprising a first contact hole;
- a thin-film transistor layer on a first surface of the substrate and comprising a plurality of insulating layers and a thin-film transistor;
- an etching stopper on one or more of the insulating layers and contacting the substrate through a second contact hole surrounding the first contact hole in a plan view;
- a connection line on the etching stopper;
- and
- a pad part on a second surface of the substrate opposite the first surface of the substrate and connected to the connection line through the first contact hole.
A display device comprising:
- a substrate comprising a first contact hole;
- a thin-film transistor layer on a first surface of the substrate and comprising a plurality of insulating layers and a thin-film transistor;
- an etching stopper on at least one of the insulating layers and contacting the substrate through a second contact hole surrounding the first contact hole in a plan view;
- and
- a pad part on a second surface of the substrate opposite the first surface of the substrate and connected to the etching stopper through the first contact hole.
A display device comprising:
- a substrate comprising a first contact hole;
- a thin-film transistor layer on a first surface of the substrate and comprising a plurality of insulating layers and a thin-film transistor;
- a filling part on the first surface of the substrate and surrounded by at least one of the insulating layers;
- an etching stopper on the filling part and contacting the substrate through a second contact hole between the filling part and the at least one of the insulating layers;
- and
- a pad part on a second surface of the substrate opposite the first surface of the substrate and connected to the etching stopper through the first contact hole.
A display device comprising:
- a substrate comprising a first contact hole;
- a sacrificial layer on a first surface of the substrate;
- an etching stopper on the sacrificial layer and contacting the substrate through a second contact hole surrounding the first contact hole in a plan view;
- at least one insulating layer on the etching stopper and having a third contact hole;
- a connection line on the at least one insulating layer and inserted into the third contact hole;
- and
- a pad part on a second surface of the substrate opposite the first surface of the substrate and connected to the connection line through the first contact hole.
A tiled display device comprising:
- a plurality of display devices, each comprising a display area having a plurality of pixels and a non-display area surrounding the display area;
- and
- a coupling member coupling the display devices together,
- wherein each of the display devices comprises:
- a substrate comprising a first contact hole;
- a thin-film transistor layer on a first surface of the substrate and comprising a plurality of insulating layers and a thin-film transistor;
- an etching stopper on at least one of the insulating layers and contacting the substrate through a second contact hole surrounding the first contact hole in a plan view;
- and
- a pad part on a second surface of the substrate opposite the first surface of the substrate and connected to the etching stopper through the first contact hole.
Dependencies are inferred from the claim text.