IP Library Granted Patent US 9,680,131
Granted Patent B2
US 9,680,131 · App. 14/437,134 · Granted Jun 13, 2017

Organic light-emitting diode (OLED) panel, manufacturing method thereof and display device

Inventors: Lujiang Huangfu (Beijing, CN); Wenyu Ma (Beijing, CN); Lei Shi (Beijing, CN); Can Zhang (Beijing, CN); Yinan Liang (Beijing, CN)
Assignee: BOE Technology Group Co., Ltd.
H01L51/5271H01L27/3244H01L51/56H01L2227/323H01L2251/5361
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Quick Facts
Patent No.
US 9,680,131
App. No.
14/437,134
Granted
Jun 13, 2017
Kind
B2
Abstract

An organic light-emitting diode (OLED) panel, a manufacturing method thereof and a display device are provided. The OLED panel comprises: a base substrate, a plurality of OLED units formed on the base substrate, and a reflective structure formed on the base substrate, disposed along the periphery of the OLED units and configured to partially or completely encircle the OLED units. The OLED unit includes an anode layer, an organic emission layer and a cathode layer. The reflective structure is provided with a reflective surface which is configured to reflect light emitted from a side terminal of the organic emission layer to the outside of the OLED panel. The OLED panel can improve the utilization rate of light emitted by the OLED units and hence improve the display quality of the OLED panel.

Claims (23)

1. An organic light-emitting diode (OLED) panel, comprising:

a base substrate;

a plurality of OLED units formed on the base substrate, in which each OLED unit includes an anode layer, an organic emission layer and a cathode layer;

a reflective structure formed on the base substrate, disposed along a periphery of the OLED units and configured to partially or completely encircle the OLED units, in which the reflective structure is provided with a reflective surface which is configured to reflect light emitted from a side terminal of the organic emission layer to the outside of the OLED panel;

a first insulating substrate configured to support the anode layer, the organic emission layer and the cathode layer; and

a second insulating substrate and a metal layer, wherein the second insulating substrate is disposed along the periphery of the OLED units and configured to partially or completely encircle the OLED units, the metal layer is formed on a surface of the second insulating substrate, and one surface of the metal layer facing the OLED units is the reflective surface, and

wherein the first insulating substrate and the second insulating substrate are not in direct contact with each other, and both of the first insulating substrate and the second insulating substrate contact with the base substrate.

2. The OLED panel according to claim 1 , wherein the second insulating substrate is provided with an opening which partially or completely encircles the OLED units;

an area of a bottom surface of the opening is less than that of a top surface; and a vertical projection of the top surface covers the bottom surface.

3. The OLED panel according to claim 2 , wherein a surface of the opening is a plane, a stepped surface, a wavy surface or a cambered surface.

4. The OLED panel according to claim 1 , wherein a height of the second insulating substrate is greater than that of the OLED units.

5. The OLED panel according to claim 1 , wherein the metal layer and the anode layer are formed at the same time.

6. A display device, comprising the OLED panel according to claim 1 .

7. A method for manufacturing an organic light-emitting diode (OLED) panel, comprising:

forming an OLED unit on a base substrate, in which the OLED unit includes an anode layer, an organic emission layer and a cathode layer; and

forming a second insulating substrate on the base substrate, in which the second insulating substrate is disposed along a periphery of the OLED unit and configured to partially or completely encircle the OLED unit;

forming a metal layer on a surface of the second insulating substrate, in which one surface of the metal layer facing the OLED unit is a reflective surface, in which the metal layer is disposed along the periphery of the OLED unit and configured to partially or completely encircle the OLED unit and the reflective surface is configured to reflect light emitted from a side terminal of the organic emission layer to the outside of the OLED panel; and

forming a first insulating substrate configured to support the anode layer, the organic emission layer and the cathode layer,

wherein the first insulating substrate and the second insulating substrate are not in direct contact with each other, and both of the first insulating substrate and the second insulating substrate are in direct contact with the base substrate.

8. The manufacturing method according to claim 7 , wherein the second insulating substrate is formed and an opening of the second insulating substrate is formed and configured to partially or completely encircle the OLED unit; an area of a bottom surface of the opening is less than that of a top surface; and a vertical projection of the top surface covers the bottom surface.

9. The manufacturing method according to claim 8 , wherein a height of the second insulating substrate is greater than that of the OLED unit.

10. The manufacturing method according to claim 8 , wherein a surface of the opening is a plane, a stepped surface, a wavy surface or a cambered surface.

11. The manufacturing method according to claim 7 , wherein the metal layer and the anode layer are formed at the same time.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 23, 2015
From: HUANGFU, LUJIANG; MA, WENYU; SHI, LEI; ZHANG, CAN; LIANG, YINAN
To: BOE TECHNOLOGY GROUP CO., LTD.
Reel/Frame 035477/0993 →
Priority Claims (1)
CN 2014 1 0169083 · Apr 24, 2014 · national
Continuity (1)
Related Publication 20160126503A1 · May 5, 2016