OLED display panel and method for manufacturing same, and display apparatus

Patent metadata

Field	Value
Publication number	US-11216098-B2
Application number	US-201916769052-A
Country	US
Kind code	B2
Filing date	Dec 13, 2019
Priority date	Jan 2, 2019
Publication date	Jan 4, 2022
Grant date	Jan 4, 2022

Abstract

An OLED display panel is provided, including a pixel circuit layer, an OLED layer, and a reflective layer that are sequentially stacked, wherein the reflective layer includes at least one reflective block, and the at least one reflective block is a conductor and is connected to a touch integrated circuit.

First claim

What is claimed is:

1. An OLED (organic light-emitting diode) display panel, comprising a pixel circuit layer, an OLED layer, and a reflective layer that are sequentially stacked,
wherein the reflective layer comprises at least one reflective block, and the at least one reflective block is a conductor and is connected to a touch integrated circuit;
wherein the OLED display panel further comprises a target conductive layer insulated from the reflective layer, and the target conductive layer comprises at least one electrode block connected to the touch integrated circuit;
wherein the at least one electrode block is in one-to-one correspondence to the at least one reflective block, and an orthographic projection of the electrode block on an installation surface of the reflective layer is located within an orthographic projection of the corresponding reflective block on the installation surface; and
wherein the reflective layer is located within a light-emission area of the OLED layer and reflects light emitted by the OLED layer.

2. The OLED display panel according to claim 1 , further comprising: at least one target connecting line in one-to-one correspondence to the at least one reflective block,
wherein the at least one reflective block is connected to the touch integrated circuit through the at least one target connecting line corresponding to the at least one reflective block.

3. The OLED display panel according to claim 2 , wherein the target connecting line is in the same layer as the reflective layer.

4. The OLED display panel according to claim 1 , wherein a number of reflective blocks in the at least one reflective block is greater than 1, and the OLED display panel further comprises a plurality of first conductive bridges and a plurality of second conductive bridges;
the first conductive bridges and the second conductive bridges are all located at a gap of the at least one reflective block, and each of the first conductive bridges and each of the second conductive bridges connect two reflective blocks; and
the first conductive bridges are insulated from the second conductive bridges, and at least a part of the first conductive bridges are intersected with at least a part of the second conductive bridges.

5. The OLED display panel according to claim 4 , wherein the reflective layer comprises m rows and n columns of reflective blocks, in which m≥2, n≥2, and the at least one reflective block is at least a part of the reflective blocks in the m rows and n columns of reflective blocks;
the reflective blocks of odd-numbered rows in a j th column are connected to the reflective blocks of even-numbered rows in a (j+1) th column through the first conductive bridges, in which 1≤j≤n, and j is an odd number; and
the reflective blocks of even-numbered columns in an i th row are connected to the reflective blocks of odd-numbered columns in an (i+1) th row through the second conductive bridges, in which 1≤i≤m, and i is an odd number.

6. The OLED display panel according to claim 4 , wherein the reflective layer comprises m rows and n columns of reflective blocks, in which m≥2, n≥2, and
the reflective blocks in an i th row and a j th column are connected to the reflective blocks in an (i+1) th row and a (j+1) th column through the first conductive bridges, and the reflective blocks in the i th row and the (j+1) th column are connected to the reflective blocks in the (i+1) th row and in the j th column through the second conductive bridges, in which 1≥i≥m, 1≥j≥n.

7. The OLED display panel according to claim 4 , wherein the first conductive bridges are located in the same layer as the reflective layer, and the second conductive bridges are located in a different layer from the reflective layer; or
the second conductive bridges are located in the same layer as the reflective layer, and the first conductive bridges are located in a different layer from the reflective layer.

8. The OLED display panel according to claim 7 , wherein the conductive bridges, which are located in a different layer from the reflective layer, in the first conductive bridges and the second conductive bridges are located in the same layer as an electrode layer in the OLED layer of the OLED display panel close to the reflective layer.

9. The OLED display panel according to claim 4 , wherein the plurality of first conductive bridges and the reflective blocks connected to the plurality of first conductive bridges form at least one first conductive structure, and the plurality of second conductive bridges and the reflective blocks connected to the plurality of second conductive bridges form at least one second conductive structure; and
the OLED display panel further comprises at least one first connecting line and at least one second connecting line which are connected to the touch integrated circuit; and the at least one first connecting line is connected to the at least one first conductive structure in a one-to-one correspondence manner, and the at least one second connecting line is connected to the at least one second conductive structure in a one-to-one correspondence manner.

10. The OLED display panel according to claim 9 , wherein, in the at least one first connecting line and the at least one second connecting line, a part of the connecting lines are located in the same layer as the reflective layer, and the other part of the connecting lines are located in a different layer from the reflective layer; or
the at least one first connecting line and the at least one second connecting line are both located in the same layer as the reflective layer; or
the at least one first connecting line and the at least one second connecting line are both located in a different layer from the reflective, layer.

11. The OLED display panel according to claim 10 , wherein when the at least one first connecting line and the at least one second connecting line comprise at least one connecting line located in a different layer from the reflective layer, the at least one connecting line is located in the same layer as the electrode layer in the OLED layer of the OLED display panel close to the reflective layer.

12. The OLED display panel according to claim 1 , further comprising at least one electrode connecting line in one-to-one correspondence to the at least one electrode block, wherein the electrode block is connected to the touch integrated circuit through the corresponding target connecting line.

13. The OLED display panel according to claim 12 , wherein the electrode connecting line is in the same layer as the target conductive layer.

14. The OLED display panel according to claim 1 , wherein the target conductive layer comprises an electrode layer in the OLED layer of the OLED display panel close to the reflective layer.

15. The OLED display panel according to claim 1 , wherein the OLED display panel further comprises a first substrate and an insulation layer; and the pixel circuit layer, the OLED layer, the insulation layer and the reflective layer are sequentially arranged in a direction away from the first substrate; or
the OLED display panel further comprises a first substrate and a second substrate; the first substrate is opposite to the second substrate; the pixel circuit layer and the OLED layer are located on one side of the first substrate close to the second substrate, and are sequentially arranged in a direction close to the second substrate; and the reflective layer is located on one side of the second substrate close to the first substrate.

16. A method for manufacturing an OLED display panel, comprising:
forming th

Assignees

• Fuzhou Boe Optoelectronics Tech Co Ltd
• Boe Technology Group Co Ltd

Inventors

• Tao Wenchang
• Li Zongxiang
• Wang Jin
• Liu Zuwen
• Wu Zhendian
• Lin Linlin
• Hong Guichun

Classifications

• H10K59/82

  Interconnections, e.g. terminals (H10K59/131, H10K59/179 take precedence) · 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

• G06F3/04164

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

• G06F3/0443

  using a single layer of sensing electrodes · CPC title