Display panel and display device

Patent metadata

Field	Value
Publication number	US-11947208-B2
Application number	US-202217887539-A
Country	US
Kind code	B2
Filing date	Aug 15, 2022
Priority date	Sep 8, 2021
Publication date	Apr 2, 2024
Grant date	Apr 2, 2024

Abstract

This invention discloses a display panel including a first substrate, light emitting elements, a touch sensing structure and a conductive layer. The light emitting elements are disposed on the first substrate. The touch sensing structure is disposed on the first substrate and on a side away from a light emitting surface of the light emitting elements. The conductive layer is disposed between the light emitting elements and the first substrate and includes contacts or at least a portion of the touch sensing structure, and the light emitting elements and the contacts are electrically connected.

First claim

What is claimed is:

1. A display panel, comprising:
a first substrate;
a plurality of light emitting elements disposed on the first substrate;
a touch sensing structure disposed on the first substrate, wherein the touch sensing structure is disposed on a side of the plurality of light emitting elements away from a light emitting surface of the plurality of light emitting elements;
a conductive layer disposed between the plurality of light emitting elements and the first substrate, wherein the conductive layer comprises at least a portion of the touch sensing structure, a plurality of first contacts or a plurality of second contacts, and the plurality of light emitting elements are electrically connected to the plurality of first contacts and the plurality of second contacts;
a plurality of first electrode conducting lines and a plurality of second electrode conducting lines, wherein the plurality of first electrode conducting lines are extended in a first direction, the plurality of second electrode conducting lines are extended in a second direction, a plurality of pixels are defined by the plurality of first electrode conducting lines and the plurality of second electrode conducting lines crossing each other, and one of the plurality of light emitting elements is electrically connected to one of the plurality of first electrode conducting lines and one of the plurality of second electrode conducting lines, wherein the touch sensing structure comprises a plurality of sensing electrodes electrically connected to each other, and one of the plurality of sensing electrodes is corresponded to one of the plurality of pixels;
a first conductive layer disposed on the first substrate, and the first conductive layer comprising:
the plurality of first electrode conducting lines;
the plurality of first contacts electrically connected to the plurality of first electrode conducting lines;
the plurality of sensing electrodes; and
a plurality of first bridge lines extending in the first direction, wherein two adjacent ones of the plurality of sensing electrodes in the first direction are electrically connected to each other through one of the plurality of first bridge lines; and

a second conductive layer disposed on the first conductive layer, wherein the plurality of light emitting elements are disposed on the second conductive layer, and the second conductive layer comprises:
the plurality of second electrode conducting lines;
the plurality of second contacts electrically connected to the plurality of second electrode conducting lines; and
a plurality of second bridge lines extending in the second direction, wherein two adjacent ones of the plurality of sensing electrodes in the second direction are electrically connected to each other through one of the plurality of second bridge lines,

wherein the conductive layer is the first conductive layer or the second conductive layer.

2. A display panel, comprising:
a first substrate;
a plurality of light emitting elements disposed on the first substrate;
a touch sensing structure disposed on the first substrate, wherein the touch sensing structure is disposed on a side of the plurality of light emitting elements away from a light emitting surface of the plurality of light emitting elements;
a conductive layer disposed between the plurality of light emitting elements and the first substrate, wherein the conductive layer comprises at least a portion of the touch sensing structure, a plurality of first contacts or a plurality of second contacts, and the plurality of light emitting elements are electrically connected to the plurality of first contacts and the plurality of second contacts;
a plurality of first electrode conducting lines and a plurality of second electrode conducting lines, wherein the plurality of first electrode conducting lines are extended in a first direction, the plurality of second electrode conducting lines are extended in a second direction, a plurality of pixels are defined by the plurality of first electrode conducting lines and the plurality of second electrode conducting lines crossing each other, and one of the plurality of light emitting elements is electrically connected to one of the plurality of first electrode conducting lines and one of the plurality of second electrode conducting lines, wherein the touch sensing structure comprises a plurality of sensing electrodes electrically connected to each other, and one of the plurality of sensing electrodes is corresponded to one of the plurality of pixels;
a first conductive layer disposed on the first substrate, and the first conductive layer comprising:
the plurality of first electrode conducting lines;
the plurality of first contacts electrically connected to the plurality of first electrode conducting lines; and
a plurality of first bridge lines extending in the first direction, wherein two adjacent ones of the plurality of sensing electrodes in the first direction are electrically connected to each other through one of the plurality of first bridge lines; and

a second conductive layer disposed on the first conductive layer, wherein the plurality of light emitting elements are disposed on the second conductive layer, and the second conductive layer comprises:
the plurality of second electrode conducting lines;
the plurality of second contacts electrically connected to the plurality of second electrode conducting lines;
the plurality of sensing electrodes; and
a plurality of second bridge lines extending in the second direction, wherein two adjacent ones of the plurality of sensing electrodes in the second direction are electrically connected to each other through one of the plurality of second bridge lines,

wherein the conductive layer is the first conductive layer or the second conductive layer.

3. A display panel, comprising:
a first substrate;
a plurality of light emitting elements disposed on the first substrate;
a touch sensing structure disposed on the first substrate, wherein the touch sensing structure is disposed on a side of the plurality of light emitting elements away from a light emitting surface of the plurality of light emitting elements;
a conductive layer disposed between the plurality of light emitting elements and the first substrate, wherein the conductive layer comprises at least a portion of the touch sensing structure, a plurality of first contacts or a plurality of second contacts, and the plurality of light emitting elements are electrically connected to the plurality of first contacts and the plurality of second contacts;
a plurality of first electrode conducting lines and a plurality of second electrode conducting lines, wherein the plurality of first electrode conducting lines are extended in a first direction, the plurality of second electrode conducting lines are extended in a second direction, a plurality of pixels are defined by the plurality of first electrode conducting lines and the plurality of second electrode conducting lines crossing each other, and one of the plurality of light emitting elements is electrically connected to one of the plurality of first electrode conducting lines and one of the plurality of second electrode conducting lines, wherein the touch sensing structure comprises a plurality of sensing electrodes electrically connected to each other, and one of the plurality of sensing electrodes is corresponded to one of the plurality of pixels;
a first conductive layer disposed on the first substrate, and the first conductive layer comprising:
the plurality of first electrode conducting lines;
the plurality of first contacts electrically connected to the plurality of first electrode conducting lines; and
a plurality of first bridge lines extending in the first direction, wherein two adjacent ones of the plurality of sensing electrodes in the first direction a

Assignees

• Hannstar Display Corp

Inventors

• Chen Jing-Xuan
• Yeh Cheng-Yen
• Kang Mu-Kai
• Huang Sz-Kai
• Yu Ming-Chang

Classifications

• G02F1/13338 Primary

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

• G02F1/133603

  with LEDs · CPC title

• G06F3/0412

  Digitisers structurally integrated in a display · CPC title

• G06F3/0446

  using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes · 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