Touch display panel

Patent metadata

Field	Value
Publication number	US-11644923-B2
Application number	US-202217730228-A
Country	US
Kind code	B2
Filing date	Apr 27, 2022
Priority date	May 21, 2021
Publication date	May 9, 2023
Grant date	May 9, 2023

Abstract

The present invention provides a touch display panel. The substrate includes a display region and a non-display region. The first conductive pads, the second conductive pads, the first conductive lines and the second conductive lines are disposed in the non-display region. The first conductive lines are electrically connected to the first conductive pads and the sub-pixels in the display region. The second conductive lines are electrically connected to the second conductive pads and the touch electrodes in the display region. The second conductive line includes a first line segment, a second line segment and a third line segment. The first line segment extends in a first direction and is connected to the second conductive pad. The second line segment extends from the non-display region to the display region. The third line segment extends in a second direction and is connected to the first line segment and the second line segment.

First claim

What is claimed is:

1. A touch display panel, comprising:
a substrate comprising a display region and a non-display region, wherein the non-display region is disposed on at least one side of the display region;
a plurality of first conductive pads and a plurality of second conductive pads disposed in the non-display region;
a plurality of first conductive lines disposed in the non-display region, wherein the first conductive lines are electrically connected to the first conductive pads, and the first conductive lines are electrically connected to a plurality of sub-pixels in the display region; and
a plurality of second conductive lines disposed in the non-display region, wherein the second conductive lines are electrically connected to the second conductive pads, and the second conductive lines are electrically connected to a plurality of touch electrodes in the display region, wherein one of the second conductive lines comprises:
a first line segment extending in a first direction and connected to one of the second conductive pads;
a second line segment extending from the non-display region to the display region; and
a third line segment extending in a second direction, wherein an end of the third line segment is connected to the first line segment, another end of the third line segment is connected to the second line segment, and the second direction is not parallel to the first direction,
wherein a portion of the second line segment is disposed between adjacent two of the first conductive pads in the second direction.

2. The touch display panel according to claim 1 , wherein the first conductive pads comprise a first portion and a second portion, and the second conductive pads are disposed between the first portion of the first conductive pads and the second portion of the first conductive pads in the second direction.

3. The touch display panel according to claim 1 , wherein the second conductive pads comprise a first portion and a second portion, and the first conductive pads are disposed between the first portion of the second conductive pads and the second portion of the second conductive pads in the second direction.

4. The touch display panel according to claim 1 , wherein a portion of the second line segment is disposed next to one of the first conductive lines in the second direction.

5. The touch display panel according to claim 4 , wherein the portion of the second line segment is separated from the one of the first conductive lines.

6. The touch display panel according to claim 5 , further comprising a conductive layer disposed on the substrate, wherein the conductive layer comprises the first conductive lines and the second conductive lines.

7. The touch display panel according to claim 1 , wherein a portion of the second line segment is partially overlapped with one of the first conductive lines.

8. The touch display panel according to claim 7 , further comprising:
a first conductive layer disposed on the substrate, wherein the first conductive layer comprises the first conductive lines; and
a second conductive layer disposed on the substrate, wherein the second conductive layer comprises the second conductive lines, and the first conductive layer and the second conductive layer are electrically isolated.

9. The touch display panel according to claim 1 , wherein one of the second conductive pads comprises a first side edge and a second side edge, the first side edge is disposed between the second side edge and the display region, and the first line segment is connected to the second side edge.

Assignees

• Hannstar Display Corp

Inventors

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

Classifications

• G06F2203/04103

  Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices · CPC title

• G06F3/0412 Primary

  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

• G06F3/0443

  using a single layer of sensing electrodes · CPC title

• G06F3/04164 Primary

  Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads · CPC title