Display apparatus realizing a large image
AssigneeLG Display Co., Ltd.
InventorsYang Sik Lee, Sang Hyuck Bae, Hwi Deuk Lee, Min Jic Lee
Life of this patent
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Abstract
A touch display apparatus for sensing a touch of a user and/or a tool is provided. The touch display apparatus includes upper electrodes on emission areas. The upper electrodes may be separated by a separating partition on a separating area and a second opening of a bank insulating layer. Each of the upper electrodes may be connected to one of link wires, which are disposed between a device substrate and the bank insulating layer. Thus, in the touch display apparatus, a process for sensing the touch of the user and/or the tool may be simplified, and a process efficiency may be improved.
Claims22
A touch display apparatus comprising:
- a link wire on a device substrate;
- an upper planarization layer on the device substrate, the upper planarization layer including a link contact hole partially exposing the link wire;
- a bank insulating layer on the upper planarization layer, the bank insulating layer including:
- a first opening in an emission area;
- and
- a second opening overlapping with a portion of the link wire;
- a first intermediate insulating layer between the upper planarization layer and the bank insulating layer, a side of the first intermediate insulating layer toward the second opening between the link wire and the separating partition having a shape of reverse taper;
- a light-emitting device in the emission area, the light-emitting device including a pixel electrode, a light-emitting layer and an upper electrode, which are sequentially stacked on the upper planarization layer;
- a separating partition on the bank insulating layer, the separating partition having a side that is reverse tapered and overlaps a side wall of the second opening;
- and
- an encapsulating element on the bank insulating layer, the light-emitting device and the separating partition,
- wherein the second opening is disposed between the first opening and the separating partition, and
- wherein the upper electrode of the light-emitting device includes an end which is disposed in the second opening, and is connected to the link wire.
A touch display apparatus comprising:
- a device substrate including an emission area and a separating area;
- a pixel electrode on the emission area of the device substrate, the pixel electrode being spaced away from the separating area;
- a link wire on the separating area of the device substrate, the link wire being spaced away from the pixel electrode;
- a bank insulating layer on the device substrate, the bank insulating layer including:
- a first opening partially exposing the pixel electrode;
- and
- a second opening partially exposing the link wire;
- a light-emitting layer on a portion of the pixel electrode which is exposed by the first opening;
- an upper electrode on the light-emitting layer, the upper electrode being connected to the link wire through the second opening;
- a separating partition on the bank insulating layer, the separating partition overlapping with the separating area;
- a first intermediate insulating layer between the device substrate and the bank insulating layer, the first intermediate insulating layer including a side toward the second opening between the link wire and the separating partition, the side having a shape of reverse taper;
- and
- an encapsulating element on the upper electrode and the separating partition,
- wherein the second opening is disposed between the emission area and the separating area,
- wherein the separating partition is disposed close to a side wall of the second opening, and
- wherein the side of the first intermediate insulating layer having the shape of reverse taper overlaps the link wire.
A touch display apparatus, comprising:
- a first link wire on a device substrate;
- a second link wire on the device substrate, the second link wire being spaced away from the first link wire;
- an upper planarization layer on the device substrate, the upper planarization layer including a first link contact hole partially exposing the first link wire, and a second link contact hole partially exposing the second link wire;
- a bank insulating layer on the upper planarization layer, the bank insulating layer including:
- a first opening in an emission area;
- a second opening overlapping with a portion of the first link wire;
- and
- a third opening overlapping a portion of the second link wire, the first opening being disposed between the second opening and the third opening;
- a light-emitting device in the emission area, the light-emitting device including a pixel electrode, a light-emitting layer and an upper electrode, which are sequentially stacked on the upper planarization layer;
- a separating partition on the bank insulating layer, the separating partition having a side that is reverse tapered and overlaps a side wall of the second opening, the second opening being disposed between the first opening and the separating partition;
- and
- an encapsulating element on the bank insulating layer, the light-emitting device and the separating partition,
- wherein the upper electrode of the light-emitting device includes an end which is connected to the first link wire in the second opening.
Dependencies are inferred from the claim text.