Display device

Patent metadata

Field	Value
Publication number	US-11861092-B2
Application number	US-202217986718-A
Country	US
Kind code	B2
Filing date	Nov 14, 2022
Priority date	Mar 21, 2016
Publication date	Jan 2, 2024
Grant date	Jan 2, 2024

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. A light-emitting diode (“LED”) device, comprising:
a flexible polymer substrate;
a buffer layer on the flexible polymer substrate, substantially totally covering a top surface of the flexible polymer substrate;
a plurality of thin film transistors (“TFT”s) on the buffer layer, each TFT comprising an active layer, a gate electrode, a source electrode, and a drain electrode;
a plurality of LEDs, each electrically connected to one of the plurality of TFTs;
a touch sensor comprising first sensor electrodes and second sensor electrodes on the flexible polymer substrate;
connecting wires on the flexible polymer substrate; and
dummy patterns, which are in a floating state and disposed on the flexible polymer substrate;
wherein a pair of first sensor electrodes are electrically connected to each other via one of the connecting wires,
wherein the touch sensor senses a capacitance change generated between one of the first sensor electrodes and one of the second sensor electrodes,
wherein the first sensor electrodes, the second sensor electrodes, and the dummy patterns are arranged on the same layer,
wherein the touch sensor, the connecting wires, the source electrode, the drain electrode and the dummy patterns comprise metallic materials,
wherein, in a plan view, a first portion of the one of the first sensor electrodes mainly extends in a first direction and a second portion of the one of first sensor electrodes mainly extends in a second direction intersecting the first direction,
wherein, in a plan view, the second portion of the one of the first sensor electrodes is disposed between a pair of LEDs from among the plurality of LEDs immediately next to each other in the first direction and overlaps the first portion of the one of the first sensor electrodes in the second direction, and
wherein, in a plan view, a side of one of the pair of LEDs faces the second portion of the one of the first sensor electrodes and an opposite side of the one of the pair of LEDs opposite to the side of the one of the pair of LEDs in the first direction is exposed to the one of the second sensor electrodes.

2. A mobile phone with display, comprising:
a flexible polymer substrate;
a buffer layer on the flexible polymer substrate, substantially totally covering a top surface of the flexible polymer substrate;
a plurality of thin film transistors (“TFT”s) on the buffer layer, each TFT comprising an active layer, a gate electrode, a source electrode, and a drain electrode;
a plurality of light emitting diodes (“LED”s), each electrically connected to one of the plurality of TFTs;
a touch sensor comprising first sensor electrodes and second sensor electrodes on the flexible polymer substrate;
connecting wires on the flexible polymer substrate; and
dummy patterns, which are in a floating state and disposed on the flexible polymer substrate;
wherein a pair of first sensor electrodes are electrically connected to each other via one of the connecting wires,
wherein the touch sensor senses a capacitance change generated between one of the first sensor electrodes and one of the second sensor electrodes,
wherein the first sensor electrodes, the second sensor electrodes, and the dummy patterns are arranged on the same layer,
wherein the touch sensor, the connecting wires, the source electrode, the drain electrode and the dummy patterns comprise metallic materials,
wherein, in a plan view, a first portion of the one of the first sensor electrodes mainly extends in a first direction and a second portion of the one of first sensor electrodes mainly extends in a second direction intersecting the first direction,
wherein, in a plan view, the second portion of the one of the first sensor electrodes is disposed between a pair of LEDs from among the plurality of LEDs immediately next to each other in the first direction and overlaps the first portion of the one of the first sensor electrodes in the second direction, and
wherein, in a plan view, a side of one of the pair of LEDs faces the second portion of the one of the first sensor electrodes and an opposite side of the one of the pair of LEDs opposite to the side of the one of the pair of LEDs in the first direction is exposed to the one of the second sensor electrodes.

3. An organic light emitting diode (“LED”) device, comprising:
a substrate;
a plurality of thin film transistors (“TFT”s) on the buffer layer, each TFT comprising an active layer, a gate electrode, a source electrode, and a drain electrode;
a plurality of organic LEDs, each electrically connected to one of the plurality of TFTs;
a touch sensor comprising first sensor electrodes, second sensor electrodes, and connecting wires on the substrate; and
dummy patterns, which are in a floating state and disposed on the substrate,
wherein a pair of first sensor electrodes are electrically connected to each other via one of the connecting wires,
wherein the first sensor electrodes, the second sensor electrodes, and the dummy patterns are arranged on the same layer,
wherein the first sensor electrodes, the second sensor electrodes, the connecting wires, the source electrode, the drain electrode, and the dummy patterns comprise metallic materials,
wherein a first portion of the one of the first sensor electrodes mainly extends in a first direction in a plan view,
wherein a second portion of the one of the first sensor electrodes mainly extends in a second direction intersecting the first direction in a plan view,
wherein, in a plan view, the second portion of the one of the first sensor electrodes is disposed between a pair of organic LEDs from among the plurality of organic LEDs immediately next to each other in the first direction and overlaps the first portion of the one of the first sensor electrodes in the second direction,
wherein a side of one of the pair of organic LEDs faces the second portion of the one of the first sensor electrodes in a plan view, and
wherein an opposite side of the one of the pair of organic LEDs opposite to the side of the one of the pair of organic LEDs in the first direction is exposed to the one of the second sensor electrodes in a plan view.

4. The organic LED device of claim 3 , wherein the touch sensor senses a capacitance change generated between the one of the first sensor electrodes and the one of the second sensor electrodes.

5. A mobile phone with display, comprising:
a substrate;
a plurality of thin film transistors (“TFT”s) on the buffer layer, each TFT comprising an active layer, a gate electrode, a source electrode, and a drain electrode;
a plurality of organic light emitting diodes (“LED”s), each electrically connected to one of the plurality of TFTs;
a touch sensor comprising first sensor electrodes, second sensor electrodes, and connecting wires on the substrate; and
dummy patterns, which are in a floating state and disposed on the substrate,
wherein a pair of first sensor electrodes are electrically connected to each other via one of the connecting wires,
wherein the first sensor electrodes, the second sensor electrodes, and the dummy patterns are arranged on the same layer,
wherein the first sensor electrodes, the second sensor electrodes, the connecting wires, the source electrode, the drain electrode, and the dummy patterns comprise metallic materials,
wherein a first portion of the one of the first sensor electrodes mainly extends in a first direction in a plan view,
wherein a second portion of the one of the first sensor electrodes mainly extends in a second direction intersecting the first direction in a plan view,
wherein, in a plan view, the second portion of the one of the first sensor electrodes is disposed between a pair of organic LEDs from among the plurality of organic LEDs immediately next to each other in th

Assignees

• Samsung Display Co Ltd

Inventors

• BOK Seunglyong
• Kim Mugyeom

Classifications

• H10W90/00

  Package configurations · CPC title

• H04M1/725

  Cordless telephones (user interfaces specially adapted therefor H04M1/724) · CPC title

• H10D86/451

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

• H10D86/60

  wherein the TFTs are in active matrices · CPC title

• H10H29/142

  Two-dimensional arrangements, e.g. asymmetric LED layout · CPC title