Display device

Patent metadata

Field	Value
Publication number	US-12411569-B2
Application number	US-202318530598-A
Country	US
Kind code	B2
Filing date	Dec 6, 2023
Priority date	Mar 21, 2016
Publication date	Sep 9, 2025
Grant date	Sep 9, 2025

Abstract

A display device includes a display substrate in which a plurality of sub-pixel areas is defined, a light-emitting diode (“LED”) on the display substrate, a touch sensor electrode on the display substrate and including at least one touch electrode, and a bank separating the plurality of the sub-pixel areas, where each of the plurality of the sub-pixel areas may include a first area in which the LED is disposed and a second area in which the touch sensor electrode is disposed.

First claim

What is claimed is:

1. An organic light emitting diode (“LED”) device, comprising:
a substrate;
a display unit comprising a plurality of thin film transistors (“TFT″s) and a plurality of organic LEDs on the substrate;
a pad on the substrate;
an encapsulation layer disposed on the substrate and comprising at least one inorganic layer and at least one organic layer;
a touch sensor disposed on the encapsulation layer and comprising connecting wires, first sensor electrodes and second sensor electrodes, the second senor electrodes being spaced apart from the first sensor electrodes in a plan view; and
a window cover above the touch sensor,
wherein the touch sensor is electrically connected to the pad via a contact hole in the display unit,
wherein one of the first sensor electrodes comprises a first portion and a second portion, the first portion mainly extending in a first direction in a plan view, the second portion mainly extending in a second direction intersecting the first direction in a plan view, and the first portion and the second portion being directly connected to each other at a point where the first portion and the second portion intersect,
wherein one of the second sensor electrodes comprises a third portion and a fourth portion, the third portion mainly extending in a first direction in a plan view and the fourth portion mainly extending in the second direction in a plan view,
wherein the second portion of the one first sensor electrode is disposed between a pair of organic LEDs directly next to each other in the first direction in a plan view,
wherein one of the pair of organic LEDs comprises a first side and a second side opposite to the first side, the first side facing the second portion of the one first sensor electrode in a plan view, and the second side facing the fourth portion of the one second sensor electrode in a plan view,
wherein the TFT comprises an active layer, a gate electrode, a source electrode, and a drain electrode,
wherein the first sensor electrodes, the connecting wires, the source electrode, and the drain electrode comprise metallic materials, and
wherein the first sensor electrodes and the source electrode, or the first sensor electrodes and the drain electrode comprise same materials.

2. The organic LED device of claim 1 , wherein the touch sensor is directly on the encapsulation layer.

3. The organic LED device of claim 1 , further comprising a dummy pattern, wherein the dummy pattern, the first sensor electrodes and the second sensor electrodes are disposed on a same layer, and wherein the dummy pattern, the first sensor electrodes, the source electrode and the drain electrode comprise same materials.

4. The organic LED device of claim 1 , further comprising color filters on the organic LEDs, wherein the color filters have color hues respectively corresponding to the organic LEDs.

5. The organic LED device of claim 4 , further comprising a bank surrounding the organic LEDs, wherein the bank is opaque.

6. The organic LED device of claim 5 , further comprising a black matrix,
wherein the black matrix is arranged on a circumference of one of the color filters,
wherein a side surface of the black matrix directly contacts a side surface of the one color filter,
wherein the black matrix is disposed on the touch sensor, and
wherein the black matrix is overlapped the touch sensor in a plan view.

7. The organic LED device of claim 1 , wherein the one of the pair of organic LEDs is directly next to the fourth portion of the one second sensor electrode, and
wherein the third portion and the fourth portion of the one second sensor electrode are directly connected to each other at a point where the third portion and the fourth portion intersect.

8. An organic light emitting diode (” LED″) device, comprising:
a substrate;
a display unit comprising a plurality of thin film transistors (“TFT″s) and a plurality of organic LEDs on the substrate;
a pad on the substrate,
a touch sensor on the substrate and comprising connecting wires, first sensor electrodes and second sensor electrodes, the second sensor electrodes being spaced apart from the first sensor electrodes in a plan view;
color filters on the touch sensor; and
a window cover on the color filters,
wherein the touch sensor is electrically connected to the pad via a contact hole in the display unit,
wherein one of the first sensor electrodes comprises a first portion and a second portion, the first portion mainly extending in a first direction in a plan view, the second portion mainly extending in a second direction intersecting the first direction in a plan view, and the first portion and the second portion being directly connected to each other at a point where the first portion and the second portion intersect,
wherein one of the second sensor electrodes comprises a third portion and a fourth portion, the third portion mainly extending in a first direction in a plan view and the fourth portion mainly extending in the second direction in a plan view,
wherein the second portion of the one first sensor electrode is disposed between a pair of organic LEDs directly next to each other in the first direction in a plan view,
wherein one of the pair of organic LEDs comprises a first side and a second side opposite to the first side, the first side facing the second portion of the one first sensor electrode in a plan view, and the second side facing the fourth portion of the one second sensor electrode in a plan view,
wherein the TFT comprises an active layer, a gate electrode, a source electrode, and a drain electrode,
wherein the first sensor electrodes, the connecting wires, the source electrode, and the drain electrode comprise metallic materials,
wherein the first sensor electrodes and the source electrode, or the first sensor electrode and the drain electrode comprise same materials, and
wherein the color filters have color hues respectively corresponding to the organic LEDs.

9. The organic LED device of claim 8 , further comprising a bank surrounding the organic LEDs, wherein the bank is opaque.

10. The organic LED device of claim 9 , further comprising a black matrix,
wherein the black matrix is arranged on a circumference of one of the color filters,
wherein a side surface of the black matrix directly contacts a side surface of the one color filter,
wherein the black matrix is disposed on the touch sensor, and
wherein the black matrix is overlapped the touch sensor in a plan view.

11. The organic LED device of claim 10 , wherein the black matrix is disposed on the touch sensor, and
wherein the black matrix is overlapped the touch sensor in a plan view.

12. The organic LED device of claim 8 , further comprising an encapsulation layer disposed on the display unit and comprising at least one inorganic layers and at least one organic layers.

13. The organic LED device of claim 12 , wherein the touch sensor is directly on the encapsulation layer.

14. The organic LED device of claim 8 , further comprising a dummy pattern, wherein the dummy pattern, the first sensor electrodes and the second sensor electrodes are disposed on a same layer, and wherein the dummy pattern, the first sensor electrodes, the source electrode and the drain electrode comprise same materials.

15. The organic LED device of claim 8 , wherein the one of the pair of organic LEDs is directly next to the fourth portion of the one second sensor electrode, and
wherein the third portion and the fourth portion of the one second sensor electrode are directly connected to each other at a point where the third portion and the fo

Assignees

• Samsung Display Co Ltd

Inventors

• BOK Seunglyong
• Kim Mugyeom

Classifications

• H10W90/00

  Package configurations · CPC title

• G06F2203/04111

  Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate · CPC title

• G06F2203/04105

  Pressure sensors for measuring the pressure or force exerted on the touch surface without providing the touch position · CPC title

• G02F1/13338

  Input devices, e.g. touch panels · CPC title

• H10D86/451

  characterised by the compositions or shapes of the interlayer dielectrics · CPC title