OLED display screen

• US 10,319,800 B2
• Filed: 08/12/2016
• Issued: 06/11/2019
• Est. Priority Date: 06/20/2016
• Status: Active Grant

• Current Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd. (TCL Technology Group Corp.)
• Original Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd. (TCL Technology Group Corp.)
• Inventors: Peng, Haibo
• Primary Examiner(s): Lebentritt, Michael
• Application Number:
  US15/308,576
• Publication Number:
  US 20180190749A1
• Time in Patent Office: 1,033 Days
• Field of Search: None
• CPC Class Codes: H10K 50/86 Arrangements for improving contrast, e.g. preventing reflection of ambient light
• CPC Class Codes: H10K 50/865 comprising light absorbing layers, e.g. light-blocking layers
• CPC Class Codes: H10K 59/126 Shielding, e.g. light-blocking means over the TFTs
• CPC Class Codes: H10K 59/131 Interconnections, e.g. wiring lines or terminals
• CPC Class Codes: H10K 59/35 comprising red-green-blue [RGB] subpixels
• CPC Class Codes: H10K 59/8792 comprising light absorbing layers, e.g. black layers

Abstract

An OLED display screen belonging to an OLED display screen technical field includes a first substrate, a second substrate, an OLED light-emitting layer and a metallic signal line. The first substrate and the second substrate are disposed opposite. The OLED light-emitting layer and the metallic signal line are both disposed between the first substrate and the second substrate. A light block layer is disposed between the first substrate and the second substrate. All or a section of the light block layer is disposed between the metallic signal line and the first substrate. The light block layer is applied to prevent incidence of natural light and/or reflective light generated by the metallic signal line. The disclosure can shelter the metallic signal line by the light block layer to absorb reflective light of the metallic signal line, a polarizer can be omitted. The structure is simple and illuminous efficiency is improved.

Claims

1. An OLED display screen, comprising a first substrate, a second substrate, an OLED light-emitting layer and a metallic signal line, the first substrate and the second substrate being disposed opposite, the OLED light-emitting layer and the metallic signal line being disposed between the first substrate and the second substrate, a light block layer being disposed between the first substrate and the second substrate, all or a section of the light block layer being disposed between the metallic signal line and the first substrate, and the light block layer being a material of preventing incidence of natural light and/or emission of reflective light generated by the metallic signal line,

wherein the OLED light-emitting layer is an RGB light-emitting layer, the RGB light-emitting layer comprises a red light emitter, a green light emitter and a blue light emitter, the red light emitter, the green light emitter and the blue light emitter are disposed abreast and separately,

and, wherein a mounting groove is formed between two of the red light emitter, the green light emitter and the blue light emitter respectively, the metallic signal line is disposed in the mounting groove.

2. The OLED display screen according to claim 1, wherein the light block layer is a light filter, a black matrix or a flat layer.

3. The OLED display screen according to claim 1, wherein the light block layer is fixed on a surface of the first substrate opposite to the second substrate, and a surface of the metallic signal line opposite to the light block layer is disposed within a range covered by the light block layer.

4. The OLED display screen according to claim 3, wherein the light block layer is a light filter, a black matrix or a flat layer.

5. The OLED display screen according to claim 1, wherein the light block layer is fixed on a surface of the metallic signal line opposite to the first substrate, a surface of the metallic signal line opposite to the light block layer is disposed within a range covered by the light block layer.

6. The OLED display screen according to claim 5, wherein the light block layer is a light filter, a black matrix or a flat layer.

7. The OLED display screen according to claim 1, wherein the light block layer is fixed in a surface of the first substrate opposite to the second substrate, and a position of the light block layer is corresponding to a position of the mounting groove, the light block layer is embedded in the mounting groove, a surface of the metallic signal line opposite to the light block layer is disposed within a range covered by the light block layer.

8. The OLED display screen according to claim 7, wherein the light block layer is a light filter, a black matrix or a flat layer.

9. The OLED display screen according to claim 1, wherein the light block layer is disposed in the mounting groove, the light block layer is fixed on a surface of the metallic signal line opposite to the first substrate, a surface of the metallic signal line opposite to the light block layer is disposed within a range covered by the light block layer.

10. The OLED display screen according to claim 9, wherein the light block layer is a light filter, a black matrix or a flat layer.

11. The OLED display screen according to claim 1, wherein the OLED light-emitting layer is an RGB light-emitting layer, the RGB light-emitting layer comprises a red light emitter, a green light emitter and a blue light emitter, the red light emitter, the green light emitter and the blue light emitter are disposed abreast and separately;

the light block layer being fixed on a surface of the first substrate opposite to the second substrate, and a surface of the metallic signal line opposite to the light block layer being disposed within a range covered by the light block layer.

12. The OLED display screen according to claim 11, wherein the light block layer is a light filter, a black matrix or a flat layer.

13. The OLED display screen according to claim 1, wherein the OLED light-emitting layer is an RGB light-emitting layer, the RGB light-emitting layer comprises a red light emitter, a green light emitter and a blue light emitter, the red light emitter, the green light emitter and the blue light emitter are disposed abreast and separately;

the light block layer being fixed on a surface of the metallic signal line opposite to the first substrate, a surface of the metallic signal line opposite to the light block layer being disposed within a range covered by the light block layer.

14. The OLED display screen according to claim 13, wherein the light block layer is a light filter, a black matrix or a flat layer.