Light emitting module and car lamp

Patent metadata

Field	Value
Publication number	US-12326239-B2
Application number	US-202318694658-A
Country	US
Kind code	B2
Filing date	Jul 31, 2023
Priority date	Sep 19, 2022
Publication date	Jun 10, 2025
Grant date	Jun 10, 2025

Abstract

A light emitting module and a car lamp are provided. The light emitting module includes a flexible light emitting panel ( 10 ) and a support ( 20 ) disposed at the shadow side of the flexible light emitting panel ( 10 ). The surface of the side of the support ( 20 ) close to the flexible light emitting panel ( 10 ) includes a plurality of sub-surfaces ( 201 ), and the plurality of sub-surfaces ( 201 ) are sequentially connected to form an integral step-shaped structure.

First claim

The invention claimed is:

1. A light emitting module, comprising a flexible light emitting panel and a support disposed at a shadow side of the flexible light emitting panel,
wherein a surface of one side of the support close to the flexible light emitting panel comprises a plurality of sub-surfaces, and the plurality of sub-surfaces are sequentially connected to form an integral step-shaped structure,
wherein the flexible light emitting panel comprises:
a substrate, a light emitting layer disposed at one side of the substrate and a packaging layer disposed at one side of the light emitting layer away from the substrate, wherein the packaging layer is closest to the support;
a light filtering film disposed at one side of the substrate away from the light emitting layer; and
a flexible circuit board, wherein one side of the flexible circuit board is connected to the light emitting layer, and the other side of the flexible circuit board is bent to one side of the support away from the flexible light emitting panel, and

wherein the light emitting module further comprises a decorating support disposed at one side of the flexible light emitting panel away from the support, and the decorating support comprises an extending section, and an orthographic projection of the extending section on the support does not overlap with an orthographic projection of the flexible light emitting panel on the support.

2. The light emitting module according to claim 1 , wherein a quantity of steps comprised by the step-shaped structure is greater than or equal to 3.

3. The light emitting module according to claim 2 , wherein a material of the support comprises at least one of an aluminum alloy, polymethyl methacrylate and acrylonitrile-butadiene-styrene copolymer.

4. The light emitting module according to claim 1 , wherein two neighboring sub-surfaces are connected to form a single step of the step-shaped structure, an included angle of the single step is a first included angle, and an included angle between two neighboring single steps is a second included angle;
an opening of the first included angle faces one side away from the flexible light emitting panel, an opening of the second included angle faces one side where the flexible light emitting panel is located, and the first included angle and the second included angle are alternately arranged;
wherein an angle of the first included angle is greater than 180 degrees, and less than 270 degrees; and
an angle of the second included angle is greater than 90 degrees, and less than 180 degrees.

5. The light emitting module according to claim 4 , wherein a material of the support comprises at least one of an aluminum alloy, polymethyl methacrylate and acrylonitrile-butadiene-styrene copolymer.

6. The light emitting module according to claim 1 , wherein a bending length of the flexible circuit board is less than a length in a first direction of the extending section;
wherein the bending length refers to a length in the first direction of a part of the flexible circuit board that goes beyond the flexible light emitting panel; and
the first direction refers to a direction parallel to a surface of the support.

7. The light emitting module according to claim 6 , wherein the light emitting module further comprises:
a control panel, wherein one side of the flexible circuit board that is further from the light emitting layer is connected to the control panel.

8. The light emitting module according to claim 1 , wherein the light filtering film completely covers the substrate, and the decorating support is located at one side of the light filtering film away from the substrate.

9. The light emitting module according to claim 8 , wherein the light emitting module further comprises:
a control panel, wherein one side of the flexible circuit board that is further from the light emitting layer is connected to the control panel.

10. The light emitting module according to claim 1 , wherein the light filtering film partially covers the substrate, and the decorating support is located at one side of the substrate not covered by the light filtering film away from the light emitting layer.

11. The light emitting module according to claim 1 , wherein the extending section is bent to the one side of the support away from the flexible light emitting panel;
the support comprises a fitting part, the fitting part is provided with a fitting hole, and the extending section, after bent, adheres to the fitting part; and
the extending section is provided with a snap-fitting part, and the snap-fitting part passes through the fitting hole, whereby the extending section is stuck with the fitting part.

12. The light emitting module according to claim 1 , wherein the support is provided with a via hole, and the flexible circuit board, after bent, passes through the via hole.

13. The light emitting module according to claim 1 , wherein the light emitting module further comprises:
a control panel, wherein one side of the flexible circuit board that is further from the light emitting layer is connected to the control panel.

14. The light emitting module according to claim 1 , wherein a material of the support comprises at least one of an aluminum alloy, polymethyl methacrylate and acrylonitrile-butadiene-styrene copolymer.

15. A car lamp, wherein the car lamp comprises the light emitting module according to claim 1 .

Assignees

• Chengdu Boe Optoelect Tech Co
• Boe Technology Group Co Ltd

Inventors

• Chai Yuanyuan
• Jin Shangnan
• Tao Xuan
• Xiao Bowen
• Feng Binfeng
• Li Fei
• Zhang Jiming

Classifications

• F21S41/20

  characterised by refractors, transparent cover plates, light guides or filters · CPC title

• F21S41/155 Primary

  Surface emitters, e.g. organic light emitting diodes [OLED] · CPC title

• F21Y2115/15

  Organic light-emitting diodes [OLED] · CPC title

• F21S43/14

  Light emitting diodes [LED] · CPC title

• F21S43/195

  Details of lamp holders, terminals or connectors · CPC title