Display panel and display device

Patent metadata

Field	Value
Publication number	US-11042238-B1
Application number	US-202016823858-A
Country	US
Kind code	B1
Filing date	Mar 19, 2020
Priority date	Dec 20, 2019
Publication date	Jun 22, 2021
Grant date	Jun 22, 2021

Abstract

A display panel, having a display area where display units, touch electrodes, and fingerprint identification units are arranged, and a non-display area including first to third bonding areas, the second and third bonding areas being located on two sides of the first bonding area, respectively. First pads, second pads, and third pads are arranged in the bonding areas, and the number of the first pads is greater than the number of the third pads, and the number of the second pads is greater than the number of the third pads. One or more first pads, one or more second pads, and one or more third pads are arranged in the first bonding area alternately. Each of the second bonding area and the third bonding area is provided with one or more first pads and one or more second pads. A display device includes the display panel.

First claim

What is claimed is:

1. A display panel having a display area and a non-display area, wherein the non-display area comprises a bonding area to which a flexible printed circuit or an integrated circuit is bound, the bonding area comprises a first bonding area, a second bonding area, and a third bonding area, and the second bonding area and the third bonding area are located on two sides of the first bonding area in a first direction, respectively;
wherein the display panel comprises:
a plurality of display units arranged in the display area;
a plurality of touch electrodes arranged in the display area;
a plurality of fingerprint identification units arranged in the display area;
a plurality of first pads arranged in the bonding area;
a plurality of second pads arranged in the bonding area; and
a plurality of third pads arranged in the bonding area,

wherein:
a number of the plurality of first pads is greater than a number of the plurality of third pads, and a number of the plurality of second pads is greater than the number of the plurality of third pads;
one or more first pads of the plurality of first pads, one or more second pads of the plurality of second pads, and one or more third pads of the plurality of third pads are alternately arranged in the first bonding area;
one or more first pads of the plurality of first pads and one or more second pads of the plurality of second pads are arranged in the second bonding area; and
one or more first pads of the plurality of first pads and one or more second pads of the plurality of second pads are arranged in the third bonding area;

wherein each of the plurality of first pads, the plurality of second pads, and the plurality of third pads is one of display pads, one of touch pads, or one of fingerprint identification pads; and each of the plurality of first pads, each of the plurality of second pads, and each of the plurality of third pads are different from each other,
wherein the display pads are configured to provide display signals to the plurality of display units, the touch pads are configured to at least one of provide touch driving signals to the plurality of touch electrodes or receive touch sensing signals of the plurality of touch electrodes, and the fingerprint identification pads are configured to receive fingerprint identification signals of the plurality of fingerprint identification units.

2. The display panel according to claim 1 , wherein the one or more first pads and the one or more second pads in the second bonding area are arranged alternately, and the one or more first pads and the one or more second pads in the third bonding area are arranged alternately.

3. The display panel according to claim 1 , wherein the second bonding area and the third bonding area are axis-symmetrical with each other about a centerline of the first bonding area, wherein an extending direction of the centerline of the first bonding area is perpendicular to the first direction.

4. The display panel according to claim 1 , wherein a number of the one or more first pads in the first bonding area and the one or more second pads in the first bonding area are identical and are greater than a number of the one or more third pads in the first bonding area.

5. The display panel according to claim 4 , wherein one or more third pads of the plurality of third pads are arranged in the second bonding area, and one or more third pads of the plurality of third pads are arranged alternately; and
the one or more first pads, the one or more second pads, and the one or more third pads in the second bonding area are arranged alternately, and the one or more first pads, the one or more second pads, and the one or more third pads in the third bonding area are arranged alternately.

6. The display panel according to claim 5 , wherein;
in the second bonding area, a number of the one or more first pads, a number of the one or more second pads, and a number of the one or more third pads are identical, and one of the one or more first pads, one of the one or more second pads, and one of the one or more third pads are arranged alternately; and
in the third bonding area, a number of the one or more first pads, a number of the one or more second pads, and a number of the one or more third pads are identical, and one of the one or more first pads, one of the one or more second pads, and one of the one or more third pads are arranged alternately.

7. The display panel according to claim 1 , wherein in the first bonding area, a number of the one or more first pads, a number of the one or more second pads, and a number of the one or more third pads are identical.

8. The display panel according to claim 7 , wherein in the first bonding area, one of the one or more first pads, one of the one or more second pads, and one of the one or more third pads are arranged alternately.

9. The display panel according to claim 7 , wherein the bonding area further comprises a fourth bonding area and a fifth bonding area; and in the first direction, the fourth bonding area is located on a side of the second bonding area facing away from the first bonding area, and the fifth bonding area is located at a side of the third bonding area facing away from the first bonding area; and
wherein one or more first pads of the plurality of first pads are arranged in the fourth bonding area, and one or more first pads of the plurality of first pads are arranged in the fifth bonding area.

10. The display panel according to claim 9 , wherein the fourth bonding area and the fifth bonding area are axis-symmetrical with each other about a centerline of the first bonding area, and an extending direction of the centerline of the first bonding area is perpendicular to the first direction.

11. The display panel according to claim 9 , wherein one or more third pads of the plurality of third pads is arranged in the second bonding area, and one or more third pads of the plurality of third pads are arranged in the third bonding area;
the one or more first pads, the one or more second pads, and the one or more third pads in the second bonding area are arranged alternately, and the one or more first pads, the one or more second pads, and the one or more third pads in the third bonding area are arranged alternately.

12. The display panel according to claim 11 , wherein a number of the one or more first pads in the second bonding area and a number of the one or more second pads in the second bonding area are identical and are greater than a number of the one or more third pads in the second bonding area; and
a number of the one or more first pads in the third bonding area and a number of the one or more second pads in the third bonding area are identical and are greater than a number of the one or more third pads in the third bonding area.

13. The display panel according to claim 12 , wherein one or more second pads of the plurality of second pads and one or more third pads of the plurality of third pads are arranged in the fourth bonding area, and one or more second pads of the plurality of second pads and one or more third pads of the plurality of third pads are arranged in the fifth bonding area;
the one or more first pads, the one or more second pads, and the one or more third pads in the fourth bonding area are arranged alternately, and the one or more first pads, the one or more second pads, and the one or more third pads in the fifth bonding area are arranged alternately.

14. The display panel according to claim 13 , wherein in the fourth bonding area, a number of the one or more second pads and a number of the one or more third pads are identical and a

Assignees

• Xiamen Tianma Micro Electronics Co Ltd

Inventors

• Zhang Tingting
• Wu Changzhi
• Sun Ying
• Xu Yumin

Classifications

• G06F3/0446 Primary

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

• G06V40/1318

  using electro-optical elements or layers, e.g. electroluminescent sensing · CPC title

• G06F3/0412 Primary

  Digitisers structurally integrated in a display · CPC title

• H05K2201/10128

  Display · CPC title

• H05K1/189

  characterised by the use of flexible or folded printed circuits · CPC title