Display module with heat dissipation structure

Abstract

The utility model discloses a display module with a heat dissipation structure, which comprises a glass cover plate layer, the glass cover plate layer comprises a rectangular AA area, the edge of the AA area is provided with a non-AA area, the lower surface of the AA area is provided with a main graphite film layer, the lower surface of the non-AA area is provided with a main body ink layer, and the main body ink layer is provided with a heat dissipation layer. A cover bottom ink layer is arranged on the lower surface of the main body ink layer, an auxiliary graphite film layer is arranged on the lower surface of the cover bottom ink layer, and the sum of the thicknesses of the main body ink layer, the cover bottom ink layer and the auxiliary graphite film layer is equal to the thickness of the main graphite film layer. The sum of the thicknesses of the main body ink layer, the cover bottom ink layer and the auxiliary graphite film layer is equal to the thickness of the main graphite film layer, so that the flatness of the whole surface of the cover plate is consistent, and the problem of full-lamination bubbles caused by lack of ink and different thicknesses of an AA area of a traditional cover plate is solved.

Description

Technical Field

[0001] The utility model relates to a display module, more specifically, to a display module with a heat dissipation structure. Background Art

[0002] like Figure 1 As shown, when the display module is working, the backlight LED and driver IC will generate a lot of heat, most of which is concentrated in the VA area at the bottom of the screen. Long-term accumulation of heat will affect the normal operation of the device and even shorten the service life of the screen.

[0003] Chinese invention patent document CN109379882A discloses a heat dissipation structure for a display module, characterized in that it includes a back plate, wherein an extended first channel is provided in the back plate, and the surface area of ​​the inner wall of the first channel increases the heat dissipation surface area of ​​the back plate for heat exchange between the display panel attached to it. The first channel includes two or more first channels, which extend parallel to each other in the transverse direction. The first channel runs through the back plate transversely. The first channel includes two or more first channels, which extend parallel to each other in the longitudinal direction. The first channel runs through the back plate longitudinally. The back plate profile includes an aluminum extruded profile. The inner wall of the first channel is coated with a material for heat conduction, wherein the thermal conductivity of the material is greater than 3. A forced convection device is provided in the first channel, which is used to promote the airflow circulation in the first channel, thereby improving the heat exchange efficiency of its inner surface. A second channel extends obliquely from one end of the first channel, and the angle between the second channel and the first channel is 0 to 180 degrees.

[0004] Obviously, the patent designs a channel structure inside the back panel to increase the heat exchange area, which cannot solve the heat dissipation problem of the existing mobile phone cover.

[0005] Chinese utility model patent document CN218630432U discloses a heat dissipation structure of a liquid crystal display module, including a liquid crystal display module, a heat dissipation structure is arranged on the front of the liquid crystal display module, and an auxiliary structure is arranged on the front of the liquid crystal display module; the heat dissipation structure includes two shells, the backs of the two shells are fixedly connected to the front of the liquid crystal display module, the inner bottom walls of the two shells are fixedly installed with refrigerators, the tops of the two refrigerators are fixedly installed with water cooling pipes, the opposite sides of the two shells are fixedly installed with heat dissipation fins, the front of the liquid crystal display module is fixedly installed with a heat conducting plate, two connecting copper tubes are fixedly installed inside the two shells, and the backs of the two connecting copper tubes are respectively fixedly connected to the front of the heat conducting plate. The auxiliary structure includes a mounting shell, the left and right sides of the mounting shell are connected to the connecting copper tube respectively, the front of the mounting shell is fixedly mounted with a housing, the front side wall of the inner cavity of the housing is fixedly mounted with a motor, the output shaft of the motor is fixedly connected with a rotating shaft having one end penetrating and extending to the inside of the mounting shell through a coupling, the front side wall of the inner cavity of the housing is rotatably mounted with a rotating rod having one end penetrating and extending to the inside of the mounting shell, the outer surface of the rotating rod and the outer surface of the rotating shaft are fixedly mounted with gears, and the outer surfaces of the two gears are meshed. The two housings and the heat dissipation fins are symmetrically distributed on the left and right sides when viewed from the front. There are six heat conductive sheets, and the six heat conductive sheets are evenly distributed when viewed from the front. The heat conductive sheet is made of copper, and the contact surface between the heat conductive sheet and the liquid crystal display module is provided with a heat dissipation silicone grease sheet. The rear side wall of the inner cavity of the housing is provided with an active hole, and the size of the active hole is adapted to the size of the rotating shaft. The front side wall of the inner cavity of the housing is fixedly mounted with a rotating seat, and the inner surface of the rotating seat is rotatably connected to the front of the rotating rod. The left and right sides of the installation shell are both provided with connection holes, and the sizes of the two connection holes are adapted to the sizes of the connection copper tubes.

[0006] Obviously, the heat dissipation structure of the LCD module in the patent achieves the purpose of dissipating heat for the LCD module by providing a heat dissipation structure, providing a working environment with a suitable temperature for the LCD module, and improving its service life. By providing an auxiliary structure, it plays a role in driving the circulation of cooling water, speeding up the heat exchange efficiency of the heat dissipation structure, and meeting the needs of the LCD module. This heat dissipation structure also cannot solve the heat dissipation problem of the existing mobile phone cover. Utility Model Content

[0007] Based on this, it is necessary to provide a display module with a heat dissipation structure in response to the above technical problems, the display module with a heat dissipation structure comprising a glass cover layer, an OCA layer is provided on the lower surface of the glass cover layer, an upper POL layer is provided on the lower surface of the OCA layer, an LCD layer is provided on the lower surface of the upper POL layer, a lower POL layer is provided on the lower surface of the LCD layer, a backlight module is provided on the lower surface of the lower POL layer, the glass cover layer comprises a rectangular AA area, a non-AA area is provided at the edge of the AA area, a main graphite film layer is provided on the lower surface of the AA area, a main ink layer is provided on the lower surface of the non-AA area, a cover bottom ink layer is provided on the lower surface of the main ink layer, a secondary graphite film layer is provided on the lower surface of the cover bottom ink layer, and the sum of the thicknesses of the main ink layer, the cover bottom ink layer and the secondary graphite film layer is equal to the thickness of the main graphite film layer. Since the sum of the thickness of the main ink layer, the bottom ink layer and the auxiliary graphite film layer is equal to the thickness of the main graphite film layer, the flatness of the entire cover is consistent, which improves the full lamination bubble problem caused by the lack of ink and uneven thickness in the AA area of ​​the traditional cover. At the same time, the use of transparent nano-monolayer graphene does not affect the normal display of the module, and can achieve rapid heat diffusion and release, evenly distribute and conduct heat to the outside, and reduce concentrated heat accumulation.

[0008] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0009] A display module with a heat dissipation structure, characterized in that the display module with a heat dissipation structure comprises a glass cover layer, an OCA layer is arranged on the lower surface of the glass cover layer, an upper POL layer is arranged on the lower surface of the OCA layer, an LCD layer is arranged on the lower surface of the upper POL layer, a lower POL layer is arranged on the lower surface of the LCD layer, and a backlight module is arranged on the lower surface of the lower POL layer.

[0010] The glass cover layer comprises a rectangular AA area, a non-AA area is provided at the edge of the AA area, a main graphite film layer is provided on the lower surface of the AA area, a main ink layer is provided on the lower surface of the non-AA area, a cover bottom ink layer is provided on the lower surface of the main ink layer, and a secondary graphite film layer is provided on the lower surface of the cover bottom ink layer.

[0011] The sum of the thicknesses of the main ink layer, the cover ink layer and the auxiliary graphite film layer is equal to the thickness of the main graphite film layer.

[0012] As a preferred implementation of the display module with heat dissipation structure provided by the utility model, the AA area and the non-AA area are integrally formed of glass.

[0013] As a preferred implementation of the display module with heat dissipation structure provided by the utility model, the non-AA area is a 2D arc structure.

[0014] As a preferred implementation of the display module with heat dissipation structure provided by the utility model, the non-AA area is a 3D arc structure.

[0015] As a preferred embodiment of the display module with heat dissipation structure provided by the utility model, the sum of the thickness of the main ink layer and the cover bottom ink layer is less than 20 microns, the thickness of the auxiliary graphite film layer is between 25 microns and 35 microns, and the thickness of the main graphite film layer is between 45 microns and 55 microns.

[0016] As a preferred embodiment of the display module with heat dissipation structure provided by the utility model, the sum of the thicknesses of the main ink layer, the cover bottom ink layer and the auxiliary graphite film layer is 50 microns.

[0017] As a preferred implementation of the display module with heat dissipation structure provided by the utility model, the main graphite film layer and the auxiliary graphite film layer are both transparent nano single-layer graphene.

[0018] As a preferred embodiment of the display module with heat dissipation structure provided by the utility model, the light transmittance of the main graphite film layer and the auxiliary graphite film layer is greater than 97%, and the thermal conductivity is 5300 W / (m·K).

[0019] As a preferred embodiment of the display module with heat dissipation structure provided by the utility model, the surface of the glass cover layer is provided with an anti-fingerprint AF film.

[0020] As a preferred implementation of the display module with heat dissipation structure provided by the utility model, the thickness of the AF film is 24 microns.

[0021] Compared with the prior art, the utility model has the following beneficial effects:

[0022] The utility model provides a display module with a heat dissipation structure. Since the sum of the thickness of the main ink layer, the bottom cover ink layer and the auxiliary graphite film layer is equal to the thickness of the main graphite film layer, the flatness of the entire cover plate is consistent, which improves the full lamination bubble problem caused by the lack of ink and uneven thickness in the AA area of ​​the traditional cover plate. At the same time, the use of transparent nano single-layer graphene does not affect the normal display of the module, and can achieve rapid heat diffusion and release, uniformize and conduct the heat to the outside, and reduce the concentrated accumulation of heat.

[0023] In addition, the non-AA area can be a 2D arc structure. Alternatively, the non-AA area can be a 3D arc structure. The arc structure of the non-AA area can effectively enhance the aesthetics of the cover and improve the comfort of holding.

[0024] In addition, the surface of the glass cover layer can be provided with an anti-fingerprint AF film. The thickness of the AF film is 24 microns. The AF film can effectively reduce the fingerprint effect of the glass cover layer and also play an anti-dizziness effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the scheme in the utility model, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a structural schematic diagram of an existing display module;

[0027] Figure 2 It is a schematic diagram of the hierarchical structure of a display module with a heat dissipation structure of the utility model;

[0028] Figure 3 for Figure 2 A schematic diagram of the hierarchical structure of a glass cover layer of a display module with a heat dissipation structure;

[0029] Figure 4 for Figure 3 A schematic diagram of the structure of the glass cover layer of the display module with a heat dissipation structure is another viewing angle;

[0030] The markings in the figure are as follows: 1. Glass cover layer; 11. AA area; 111. Main graphite film layer; 12. Non-AA area; 121. Main ink layer; 122. Cover bottom ink layer; 123. Auxiliary graphite film layer; 2. OCA layer; 3. Upper POL layer; 4. LCD layer; 5. Lower POL layer; 6. Backlight module. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0032] As described in the background technology, in the prior art, for the display module of a mobile phone, the backlight LED and the driver IC will generate a lot of heat when the display module is working. Most of the heat is concentrated in the VA area at the bottom of the screen. The long-term accumulation of heat will affect the normal operation of the device and even shorten the service life of the screen.

[0033] In order to solve this technical problem, the utility model provides a display module with a heat dissipation structure, comprising a glass cover layer 1, an OCA layer 2 is provided on the lower surface of the glass cover layer 1, an upper POL layer 3 is provided on the lower surface of the OCA layer 2, an LCD layer 4 is provided on the lower surface of the upper POL layer 3, a lower POL layer 5 is provided on the lower surface of the LCD layer 4, and a backlight module 6 is provided on the lower surface of the lower POL layer 5. The glass cover layer 1 comprises a rectangular AA area 11, a non-AA area 12 is provided on the edge of the AA area 11, a main graphite film layer 111 is provided on the lower surface of the AA area 11, a main ink layer 121 is provided on the lower surface of the non-AA area 12, a cover bottom ink layer 122 is provided on the lower surface of the main ink layer 121, and an auxiliary graphite film layer 123 is provided on the lower surface of the cover bottom ink layer 122. The sum of the thickness of the main ink layer 121, the cover bottom ink layer 122 and the auxiliary graphite film layer 123 is equal to the thickness of the main graphite film layer 111.

[0034] Through the above structural design, since the sum of the thickness of the main ink layer 121, the bottom cover ink layer 122 and the auxiliary graphite film layer 123 is equal to the thickness of the main graphite film layer 111, the flatness of the entire cover is consistent, which improves the full lamination bubble problem caused by the lack of ink and uneven thickness in the AA area of ​​the traditional cover. At the same time, the use of transparent nano single-layer graphene does not affect the normal display of the module, can achieve rapid heat diffusion and release, uniformize and conduct heat to the outside, reduce concentrated heat accumulation, ensure the performance of the mobile phone, extend the service life of the mobile phone, and enhance product competitiveness.

[0035] In order to enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0036] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0037] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0038] Example 1

[0039] like Figure 2 , Figure 3 and Figure 4 As shown, the display module with a heat dissipation structure includes a glass cover layer 1, an OCA layer 2 is provided on the lower surface of the glass cover layer 1, an upper POL layer 3 is provided on the lower surface of the OCA layer 2, an LCD layer 4 is provided on the lower surface of the upper POL layer 3, a lower POL layer 5 is provided on the lower surface of the LCD layer 4, and a backlight module 6 is provided on the lower surface of the lower POL layer 5.

[0040] The glass cover layer 1 includes a rectangular AA area 11, a non-AA area 12 is provided at the edge of the AA area 11, a main graphite film layer 111 is provided on the lower surface of the AA area 11, a main ink layer 121 is provided on the lower surface of the non-AA area 12, a cover bottom ink layer 122 is provided on the lower surface of the main ink layer 121, and a secondary graphite film layer 123 is provided on the lower surface of the cover bottom ink layer 122.

[0041] It should be noted that the sum of the thicknesses of the main ink layer 121 , the cover ink layer 122 and the auxiliary graphite film layer 123 is equal to the thickness of the main graphite film layer 111 .

[0042] In addition, the AA area 11 and the non-AA area 12 are integrally formed of glass.

[0043] In addition, the sum of the thicknesses of the main ink layer 121 and the cover ink layer 122 is less than 20 microns, the thickness of the auxiliary graphite film layer 123 is between 25 microns and 35 microns, and the thickness of the main graphite film layer 111 is between 45 microns and 55 microns. Preferably, the sum of the thicknesses of the main ink layer 121, the cover ink layer 122 and the auxiliary graphite film layer 123 is 50 microns.

[0044] It should be noted that the main graphite film layer 111 and the auxiliary graphite film layer 123 are both transparent nano-monolayer graphene.

[0045] The light transmittance of the main graphite film layer 111 and the auxiliary graphite film layer 123 is greater than 97%, and the thermal conductivity is 5300 W / (m·K).

[0046] The working mode of this embodiment is described below.

[0047] Since the sum of the thickness of the main ink layer 121, the bottom cover ink layer 122 and the auxiliary graphite film layer 123 is equal to the thickness of the main graphite film layer 111, the flatness of the entire cover is consistent, which improves the full lamination bubble problem caused by the lack of ink and uneven thickness in the AA area of ​​the traditional cover. At the same time, the use of transparent nano-monolayer graphene does not affect the normal display of the module, can achieve rapid heat diffusion and release, uniformize and conduct heat to the outside, reduce concentrated heat accumulation, ensure the performance of the mobile phone, extend the service life of the mobile phone, and enhance product competitiveness.

[0048] Example 2

[0049] like Figure 2 and Figure 3 As shown, the display module with a heat dissipation structure provided in Example 1 is further optimized, specifically, the non-AA area 12 is a 2D arc structure. Alternatively, the non-AA area 12 is a 3D arc structure.

[0050] The working mode of this embodiment is described below.

[0051] By utilizing the arc structure of the non-AA area 12 , the aesthetics of the cover plate can be effectively enhanced and the comfort of holding the cover can be improved.

[0052] Example 3

[0053] The display module with a heat dissipation structure provided in Example 1 or 2 is further optimized. Specifically, the surface of the glass cover layer 1 is provided with an anti-fingerprint AF film.

[0054] It should be noted that the thickness of the AF film is 24 microns.

[0055] The working mode of this embodiment is described below.

[0056] The AF film can effectively reduce the fingerprint effect of the glass cover layer 1 and also has an anti-dizziness effect.

[0057] The terms "coupling" and "coupling" involved in the embodiments of the present application should be understood in a broad sense. For example, they may refer to a direct physical connection, or an indirect connection achieved through electronic devices, such as a connection achieved through resistors, inductors, capacitors or other electronic devices.

[0058] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] Obviously, the embodiments described above are only some embodiments of the present application, rather than all embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the specification and drawings of this application, directly or indirectly used in other related technical fields, is similarly within the scope of patent protection of this application.

Claims

1. A display module with a heat dissipation structure, characterized in that: The display module with a heat dissipation structure comprises a glass cover layer (1), an OCA layer (2) is provided on the lower surface of the glass cover layer (1), an upper POL layer (3) is provided on the lower surface of the OCA layer (2), an LCD layer (4) is provided on the lower surface of the upper POL layer (3), a lower POL layer (5) is provided on the lower surface of the LCD layer (4), a backlight module (6) is provided on the lower surface of the lower POL layer (5), and the glass cover layer (1) comprises a rectangular AA area (11), and the edges of the AA area (11) are A non-AA area (12) is provided on the edge, a main graphite film layer (111) is provided on the lower surface of the AA area (11), a main ink layer (121) is provided on the lower surface of the non-AA area (12), a cover ink layer (122) is provided on the lower surface of the main ink layer (121), an auxiliary graphite film layer (123) is provided on the lower surface of the cover ink layer (122), and the sum of the thicknesses of the main ink layer (121), the cover ink layer (122) and the auxiliary graphite film layer (123) is equal to the thickness of the main graphite film layer (111).

2. The display module with a heat dissipation structure according to claim 1, characterized in that: The AA area (11) and the non-AA area (12) are integrally formed of glass.

3. The display module with a heat dissipation structure according to claim 1, characterized in that: The non-AA area (12) is a 2D arc structure.

4. The display module with a heat dissipation structure according to claim 1, characterized in that: The non-AA area (12) is a 3D arc structure.

5. The display module with a heat dissipation structure according to claim 1, characterized in that: The sum of the thicknesses of the main ink layer (121) and the cover ink layer (122) is less than 20 micrometers, the thickness of the auxiliary graphite film layer (123) is between 25 micrometers and 35 micrometers, and the thickness of the main graphite film layer (111) is between 45 micrometers and 55 micrometers.

6. The display module with a heat dissipation structure according to claim 5, characterized in that: The sum of the thicknesses of the main ink layer (121), the cover ink layer (122) and the auxiliary graphite film layer (123) is 50 micrometers.

7. The display module with a heat dissipation structure according to claim 1, characterized in that: The main graphite film layer (111) and the auxiliary graphite film layer (123) are both transparent nano single-layer graphene.

8. The display module with a heat dissipation structure according to claim 7, characterized in that: The main graphite film layer (111) and the auxiliary graphite film layer (123) have a light transmittance greater than 97% and a thermal conductivity of 5300 W / (m·K).

9. The display module with a heat dissipation structure according to claim 1, characterized in that: The surface of the glass cover layer (1) is provided with an anti-fingerprint AF film.

10. The display module with a heat dissipation structure according to claim 9, characterized in that: The thickness of the AF film is 24 microns.

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