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US 2022/0028953 A1Published application
Display panel
AssigneeSamsung Display Co., Ltd.
InventorsDAEHWAN JANG, YUNJONG YEO, JAEBEEN LEE, SUNGWON CHO, JIN HO CHO
Life of this patent
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Abstract
A display panel includes a pad line disposed on a rear surface of a base layer and a connection line disposed on a front surface of the base layer. The pad line and the connection line are connected in an area overlapping a pad hole defined to pass through the base layer, and the pad line is connected to a driving unit on the rear surface of the base layer.
Claims22
A display panel comprising:
- a display unit including an active area displaying an image;
- and
- a driving unit connected to the display unit,
- wherein the display unit comprises:
- a base layer including a front surface and a rear surface opposing each other;
- a circuit element layer disposed on the front surface of the base layer and including a plurality of insulating layers and a transistor having a plurality of electrodes disposed between the insulating layers;
- a display element layer disposed on the circuit element layer and including a light emitting element connected to the transistor;
- and
- a pad unit including a connection line branched from an electrode of the plurality of electrodes and a pad line connected to the driving unit,
- the display unit defines a pad hole passing through the base layer and at least one insulating layer of the plurality of insulating layers,
- a third insulating layer of the plurality of insulating layers covers side surfaces of the at least one insulating layer defining the pad hole, is different from the at least one insulating layer, and defines an insulating hole passing through the third insulating layer, and
- the connection line and the pad line are in contact with each other inside the insulating hole.
9 more elements
A method for manufacturing a display panel comprising:
- providing a plurality of insulating layers, a base layer including a front surface and a rear surface opposing each other, and a first work substrate, wherein the plurality of insulating layers is formed on the front surface and the first work substrate is formed on the rear surface;
- removing the plurality of insulating layers and a portion of the base layer in a direction from the front surface to the rear surface to form a pad hole;
- filling the pad hole with an organic layer;
- removing an area, of the organic layer, overlapping the pad hole in a plan view to form an insulating hole surrounded by the pad hole;
- applying a first conductive material onto the organic layer to form a connection line covering the insulating hole;
- removing the base layer to expose a portion of the connection line overlapping the insulating hole;
- and
- applying a second conductive material onto the rear surface to form a pad line,
- wherein the connection line and the pad line are in contact with each other inside the insulating hole.
6 more elements
Dependencies are inferred from the claim text.