Touch display panel

Patent metadata

Field	Value
Publication number	US-2022214758-A1
Application number	US-202117522903-A
Country	US
Kind code	A1
Filing date	Nov 10, 2021
Priority date	Jan 6, 2021
Publication date	Jul 7, 2022
Grant date	—

Abstract

A touch display panel including a pixel defining layer, a first light emitting structure, a second light emitting structure, a first light sensing device and a touch electrode layer is provided. The pixel defining layer has a first pixel opening and a second pixel opening. The first light sensing device is adjacently disposed on a first side of the first pixel opening. A first edge defining a first electrode opening of the touch electrode layer and a second edge defining the first pixel opening of the pixel defining layer have a first spacing on the first side of the first pixel opening. A third edge defining a second electrode opening of the touch electrode layer and a fourth edge defining the second pixel opening of the pixel defining layer have a second spacing on a side of the second pixel opening. The first spacing is greater than the second spacing.

First claim

What is claimed is:

1 . A touch display panel, comprising:
a first substrate; a second substrate disposed opposite to the first substrate; a pixel defining layer disposed on the first substrate and comprising a first pixel opening and a second pixel opening, wherein the first pixel opening and the second pixel opening are adjacently disposed along a first direction; a first light emitting structure and a second light emitting structure disposed in the first pixel opening and the second pixel opening, respectively; a first light sensing device adjacently disposed on a first side of the first pixel opening along a second direction, wherein the first direction intersects the second direction; and a touch electrode layer disposed on the second substrate and comprising a first electrode opening, a second electrode opening, and a third electrode opening of the first light sensing device overlapped with the first light emitting structure and the second light emitting structure, respectively, wherein the touch electrode layer comprises a first edge defining the first electrode opening, the pixel defining layer comprises a second edge defining the first pixel opening, the first edge and the second edge comprise a first spacing along the second direction on the first side of the first pixel opening, the touch electrode layer further comprises a third edge defining the second electrode opening, the pixel defining layer further comprises a fourth edge defining the second pixel opening, the third edge and the fourth edge comprise a second spacing on a same side of the second pixel opening along the second direction, and the first spacing is greater than the second spacing.

2 . The touch display panel according to claim 1 , wherein a light emitting color of the first light emitting structure is green or blue, and a light emitting color of the second light emitting structure is red.

3 . The touch display panel according to claim 1 , wherein the first edge and the second edge comprise a third spacing on a second side of the first pixel opening along the first direction, and the third spacing is not equal to the first spacing.

4 . The touch display panel according to claim 3 , wherein the second pixel opening is disposed on the second side of the first pixel opening, and the third spacing is less than the first spacing.

5 . The touch display panel according to claim 4 , further comprising:
a second light sensing device adjacently disposed with the first pixel opening along the second direction and disposed on a third side of the first pixel opening, wherein the first side is opposite to the third side, the first edge and the second edge comprise a fourth spacing along the second direction on the third side of the first pixel opening, and the fourth spacing is greater than the second spacing.

6 . The touch display panel according to claim 1 , wherein the first light sensing device and the second pixel opening are disposed adjacently along a third direction and disposed on a first side of the second pixel opening, the third direction intersects the first direction and the second direction, the third edge and the fourth edge comprise a third spacing along the third direction on the first side of the second pixel opening, and the third spacing is greater than the second spacing.

7 . The touch display panel according to claim 6 , wherein a light emitting color of the first light emitting structure is blue, and a light emitting color of the second light emitting structure is green.

8 . The touch display panel according to claim 6 , further comprising:
a second light sensing device adjacently disposed with the second pixel opening along the third direction and disposed on a second side of the second pixel opening, wherein the first side is opposite to the second side, the third edge and the fourth edge comprise a fourth spacing along the third direction on the second side of the second pixel opening, and the fourth spacing is greater than the second spacing.

9 . The touch display panel according to claim 8 , further comprising:
a third light emitting structure, wherein the pixel defining layer further comprises a third pixel opening, and the third light emitting structure is disposed in the third pixel opening, wherein the second light sensing device and the third pixel opening are disposed adjacently along the second direction and disposed on a first side of the third pixel opening, the touch electrode layer further comprises a fifth edge defining the third electrode opening, the pixel defining layer also comprises a sixth edge defining the third pixel opening, the fifth edge and the sixth edge comprise a fifth edge along the second direction on the first side of the third pixel opening, and the fifth spacing is less than the first spacing.

10 . The touch display panel according to claim 9 , wherein light emitting colors of the first light emitting structure, the second light emitting structure, and the third light emitting structure are blue, green, and red, respectively.

Assignees

• Au Optronics Corp

Inventors

• Cheng Mao-Hsun
• Hung Chun-Cheng
• Liao Kuang-Hsiang
• Cheng Ching-Sheng
• Shih Li-Wei

Classifications

• G06F3/0443

  using a single layer of sensing 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

• G09G3/32

  semiconductive, e.g. using light-emitting diodes [LED] · CPC title

• G09G2300/0426

  Layout of electrodes and connections · CPC title