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CN-116884316-B - Display module and display device

CN116884316BCN 116884316 BCN116884316 BCN 116884316BCN-116884316-B

Abstract

The utility model relates to a display module assembly, including display panel, in first direction, display panel includes display area, bending zone and binding zone, bending zone can buckle in order will binding zone buckle to the back light side of display area, bending zone is in when buckling the state, display area with be provided with the heat dissipation functional layer between the binding zone, the heat dissipation functional layer with be provided with first rigid support layer between the binding zone. The present disclosure also relates to a display device.

Inventors

  • SHEN JIAMING
  • YANG HAOTIAN
  • LU BAOFU
  • HAO XIAODONG
  • FU XIAOLIANG
  • WANG KANG
  • JIANG JIATONG
  • WANG CHUXIANG

Assignees

  • 京东方科技集团股份有限公司
  • 成都京东方光电科技有限公司

Dates

Publication Date
20260508
Application Date
20230725

Claims (12)

  1. 1. The display module comprises a display panel, wherein the display panel comprises a display area, a bending area and a binding area in a first direction, the bending area can bend to bend the binding area to the backlight side of the display area, a heat dissipation function layer is arranged between the display area and the binding area when the bending area is in a bending state, and a first rigid support layer is arranged between the heat dissipation function layer and the binding area; In the second direction, the second rigid support layer comprises a fourth central region and fourth edge regions positioned on two opposite sides of the fourth central region, the orthographic projection of the binding region on the second rigid support layer is positioned in the fourth central region, and an elastic buffer layer is arranged between the fourth edge region and the heat dissipation functional layer; in a second direction, the first rigid support layer has a first central region and first edge regions located on opposite sides of the first central region, an orthographic projection of the binding region on the first rigid support layer being located at the first central region; In a second direction, the heat dissipation function layer is provided with a second central area and second edge areas positioned on two opposite sides of the second central area, and the orthographic projection of the first rigid support layer on the heat dissipation function layer is positioned in the second central area; the second direction is perpendicular to the first direction, and the second direction is perpendicular to the light emitting direction of the display panel.
  2. 2. The display module of claim 1, wherein a side of the heat dissipation functional layer facing the first rigid supporting layer is disposed in a groove, and a part of the first rigid supporting layer is embedded in the groove.
  3. 3. The display module of claim 2, wherein the heat dissipation functional layer comprises a metal layer disposed near the binding region, and a depth of the groove is smaller than a thickness of the metal layer in a light emitting direction of the display panel.
  4. 4. The display module of claim 2, wherein the heat dissipation functional layer comprises a metal layer close to the binding region, and a foam layer positioned on a side of the metal layer away from the binding region, the depth of the groove is greater than the thickness of the metal layer in the light emitting direction of the display panel, and the depth of the groove is less than or equal to the sum of the thickness of the metal layer and the thickness of the foam layer.
  5. 5. The display module of claim 2, wherein the heat dissipation functional layer comprises a stainless steel heat dissipation plate, and a depth of the groove is less than or equal to a thickness of the stainless steel heat dissipation plate in a light emitting direction of the display panel.
  6. 6. The display module of claim 2, wherein in a second direction, the length of the groove is less than 0.5mm, the second direction is perpendicular to the first direction, and the second direction is perpendicular to the light emitting direction of the display panel.
  7. 7. The display module of claim 1, wherein the first rigid support layer is a stainless steel support plate.
  8. 8. The display module of claim 1, wherein the orthographic projection of the elastic buffer layer on the heat dissipation functional layer is entirely within the heat dissipation functional layer.
  9. 9. The display module of claim 1, wherein a gap is provided between the elastic buffer layer and the second rigid support layer.
  10. 10. The display module of claim 1, wherein the first rigid support layer comprises a graphite layer of graphite material.
  11. 11. The display module of claim 1, wherein a side of the bonding region away from the display region is provided with a driving IC, and a gap between the second rigid support layer and the driving IC in the second direction is 20-30um.
  12. 12. A display device, comprising the display module of any one of claims 1-11, and a middle frame outside the display module, the display module further comprising a cover plate on a light-emitting side of the display panel; a second rigid supporting layer is arranged on one side of the binding area, which is far away from the display area; the cover plate comprises a first area exposed out of the display panel, the first area comprises a first subarea corresponding to the binding area and a second subarea except the first subarea, and a first bonding barrier layer connected with the middle frame is arranged on the second subarea; the heat dissipation structure comprises a cover plate, a first rigid support layer, a second bonding barrier layer, a heat dissipation function layer, a first bonding barrier layer, a second rigid support layer, a second bonding barrier layer, a first heat dissipation function layer and a second cover plate.

Description

Display module and display device Technical Field The disclosure relates to the technical field of manufacturing of display products, in particular to a display module and a display device. Background With the rapid development of display technology, terminal display users are increasingly inclined to adopt devices with full screen schemes, which requires the continuous improvement of the design capability of narrow frames of modules. At the same time, the water resistance of the product is also a considerable important point. Taking a mobile phone product as an example, the existing product can be coated with waterproof glue between the middle frame of the whole machine and the display module, and the waterproof glue occupies a part of the space of the lower frame, so that the product still has a wider frame finally. In order to realize the design of a narrow frame, the proposal can move the position of the waterproof glue forward, and flow down through a PANEL TAIL area (binding area) and then be connected with the middle frame. However, although the narrow frame can be realized in the mode, as the middle frame of the whole machine is in direct contact with the Panel, when the whole machine is subjected to mechanical strength test such as falling, external force born by the whole machine can be directly transmitted to the PANEL TAIL area, so that Peeling (stripping), deformation and the like of the Panel are caused, and a module product is invalid. Disclosure of Invention In order to solve the technical problem, the present disclosure provides a display module and a display device, and solves the problem of how to realize a narrow frame while guaranteeing a waterproof function, and meanwhile, to increase the strength of the display module. In order to achieve the above purpose, the technical scheme adopted by the embodiment of the disclosure is that the display module comprises a display panel, wherein in a first direction, the display panel comprises a display area, a bending area and a binding area, the bending area can bend to bend the binding area to the backlight side of the display area, when the bending area is in a bending state, a heat dissipation function layer is arranged between the display area and the binding area, and a first rigid support layer is arranged between the heat dissipation function layer and the binding area. Optionally, in the second direction, the first rigid support layer has a first central region and first edge regions located on opposite sides of the first central region, and an orthographic projection of the binding region on the first rigid support layer is located in the first central region; In a second direction, the heat dissipation functional layer is provided with a second central area and second edge areas positioned on two opposite sides of the second central area, and the orthographic projection of the rigid support layer on the heat dissipation functional layer is positioned in the second central area; the second direction is perpendicular to the first direction, and the second direction is perpendicular to the light emitting direction of the display panel. Optionally, the heat dissipation functional layer is disposed in the groove towards one side of the first rigid supporting layer, and part of the first rigid supporting layer is embedded in the groove. Optionally, the heat dissipation functional layer includes a metal layer disposed near the binding area, and in a light emitting direction of the display panel, a depth of the groove is smaller than a thickness of the metal layer. Optionally, the heat dissipation functional layer includes being close to the metal layer that the binding region set up, and be located the metal layer is kept away from the cotton layer of bubble of one side of binding region in the light-emitting direction of display panel, the degree of depth of recess is greater than the thickness of metal layer, just the degree of depth of recess is less than or equal to the thickness of metal layer with the thickness of the cotton layer of bubble sum. Optionally, the heat dissipation functional layer includes a stainless steel heat dissipation plate, and in a light emitting direction of the display panel, a depth of the groove is smaller than or equal to a thickness of the stainless steel heat dissipation plate. Optionally, in the second direction, the length of the groove is less than 0.5mm, the second direction is perpendicular to the first direction, and the second direction is perpendicular to the light emitting direction of the display panel. Optionally, the first rigid support layer is a stainless steel support plate. Optionally, a second rigid support layer is disposed on a side of the binding region away from the display region. Optionally, in the second direction, the binding region includes a third central region and third edge regions located on opposite sides of the third central region, and an orthographic projection of the secon