Display module and display device

Patent metadata

Field	Value
Publication number	US-11758703-B2
Application number	US-202017263111-A
Country	US
Kind code	B2
Filing date	Aug 5, 2020
Priority date	Jul 21, 2020
Publication date	Sep 12, 2023
Grant date	Sep 12, 2023

Abstract

A display module and a display device, the display module includes a display panel including a substrate, a driving circuit layer, and a display function layer; a heat dissipation layer is arranged on a side of the substrate away from the driving circuit layer and configured to dissipate heat of the display panel, a material of the heat dissipation layer comprises a thermally conductive metal material; the heat dissipation layer comprises a plurality of heat dissipation channels regularly arranged, and each of the heat dissipation channels is configured to pass a heat dissipation medium, thereby alleviating a problem of heat concentration in current vehicle-mounted display devices.

First claim

What is claimed is:

1. A display module, comprising:
a display panel comprising a substrate, a driving circuit layer, and a display function layer;
a heat dissipation layer arranged on a side of the substrate away from the driving circuit layer and configured to dissipate heat of the display panel, wherein a material of the heat dissipation layer comprises a thermally conductive metal material, the heat dissipation layer comprises a plurality of heat dissipation channels, and each of the heat dissipation channels is configured to allow a heat dissipation medium to pass;
wherein the heat dissipation layer comprises a plurality of heat dissipation pipelines, the heat dissipation pipelines comprise a plurality of first heat dissipation pipelines and a plurality of second heat dissipation pipelines, and the first heat dissipation pipelines and the second heat dissipation pipelines are interlaced.

2. The display module as claimed in claim 1 , wherein each of the heat dissipation pipelines comprises a hollow structure passing through both ends of the heat dissipation pipeline, and the hollow structure forms each of the heat dissipation channels.

3. The display module as claimed in claim 2 , wherein the plurality of the first heat dissipation pipelines extend in a first direction, the plurality of the second heat dissipation pipelines extend in a second direction, and the first direction and the second direction are perpendicular to each other.

4. The display module as claimed in claim 2 , wherein the plurality of the heat dissipation pipelines extend along a first direction and are arranged in a row along a second direction, and the first direction and the second direction are perpendicular to each other.

5. The display module as claimed in claim 2 , wherein an outer diameter of the heat dissipation pipelines is less than or equal to 2 cm, and a thickness of the heat dissipation pipelines is less than 1 cm.

6. A display device, comprising:
a display module comprising a display panel comprising a substrate, a driving circuit layer, and a display function layer;
a heat dissipation layer arranged on a side of the substrate away from the driving circuit layer and configured to dissipate heat of the display panel, wherein a material of the heat dissipation layer comprises a thermally conductive metal material, the heat dissipation layer comprises a plurality of heat dissipation channels, and each of the heat dissipation channels is configured to allow a heat dissipation medium to pass; and
a cooling machine comprising a heat dissipation medium inlet and a heat dissipation medium outlet, wherein the heat dissipation medium outlet is connected to an inlet end of the heat dissipation channel, and the heat dissipation medium inlet is connected to an outlet end of the heat dissipation channel, the cooling machine is configured to cool the heat dissipation medium transferred from the outlet end of the heat dissipation channel, and input the heat dissipation medium after a cooling process to the plurality of heat dissipation channels.

7. The display device as claimed in claim 6 , wherein the heat dissipation medium comprises a gas heat dissipation medium or a liquid heat dissipation medium.

8. The display device as claimed in claim 6 , wherein the heat dissipation layer comprises a plurality of heat dissipation pipelines, each of the heat dissipation pipelines comprises the hollow structure passing through both ends of the heat dissipation pipeline, and the hollow structure forms each of the heat dissipation channels.

9. The display device as claimed in claim 8 , wherein the plurality of heat dissipation pipelines comprise the plurality of first heat dissipation pipelines extending in the first direction and the plurality of second heat dissipation pipelines extending in the second direction, the first direction and the second direction are perpendicular to each other, and the plurality of first heat dissipation pipelines and the plurality of second heat dissipation pipelines are interlaced.

10. The display device as claimed in claim 8 , wherein the plurality of heat dissipation pipelines extend along the first direction and are arranged in a row along the second direction, and the first direction and the second direction are perpendicular to each other.

11. The display device as claimed in claim 7 , wherein the heat dissipation layer comprises a first heat dissipation plate, a second heat dissipation plate, and a plurality of spacer plates, the first heat dissipation plate and the second heat dissipation plate are arranged opposite to each other in parallel, the plurality of spacer plates are arranged between the first heat dissipation plate and the second heat dissipation plate, and are connected to the first heat dissipation plate and the second heat dissipation plate respectively, the at least two central axes of the spacer plates are parallel to each other and parallel to the first heat dissipation plate, and the first heat dissipation plate and/or the second heat dissipation plate and the adjacent two of the spacer plates jointly enclose the heat dissipation channel.

12. The display device as claimed in claim 11 , wherein at least one of the spacer plates is vertically connected to the first heat dissipation plate and the second heat dissipation plate.

13. The display device as claimed in claim 11 , wherein at least one of the spacer plates is arranged at an acute angle with the first heat dissipation plate and the second heat dissipation plate.

14. The display device as claimed in claim 8 , wherein the outer diameter of the heat dissipation channel is less than or equal to 2 cm, and the thickness of the heat dissipation channel is less than 1 cm.

15. The display device as claimed in claim 11 , wherein the thicknesses of the first heat dissipation plate, the second heat dissipation plate, and the spacer plates are all less than 1 cm, and the thickness of the heat dissipation layer is less than or equal to 2 cm.

Assignees

• Wuhan China Star Optoelectronics Semiconductor Display Tech Co Ltd

Inventors

• Song Changjian
• Wu Siping
• Li Weiwei
• Liu Shengfang

Classifications

• G09F9/00 Primary

  Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements (in which the variable information is permanently attached to a movable support G09F11/00; abacus G06C1/00; slide-rules G06G1/00) · CPC title

• H05K7/20972 Primary

  Forced ventilation, e.g. on heat dissipaters coupled to components · CPC title

• H05K7/20981 Primary

  Liquid coolant without phase change · CPC title

• H05K7/20954

  for display panels · CPC title