CN217544067U - Display device and display equipment - Google Patents

Abstract

The present disclosure provides a display device and a display apparatus, the display device including at least: the display device comprises a display panel, a support piece and a middle frame; the display panel is connected with the first surface of the support piece, and at least one heat dissipation hole is formed in the second surface, opposite to the first surface, of the support piece; the middle frame is arranged on one side, far away from the display panel, of the support piece and is connected with the support piece through the connecting piece, so that a gap is formed between the middle frame and the support piece. According to the display panel, the heat dissipation holes are formed in the surface of the support piece, which is far away from the display panel, so that the specific surface of the support piece is increased, the heat dissipation performance of the support piece is improved within the same time, and the heat of the display panel is conveniently dissipated; meanwhile, the gap between the support piece and the middle frame is arranged through the connecting piece, the influence of the heat of the display panel on a back bending area is isolated, the phenomenon that the colloid drops is avoided, the integral efficient heat dissipation of the display device is realized, and the condition that the connection is poor or the service life of the display device is reduced is avoided.

Description

Display device and display equipment

Technical Field

The present disclosure relates to the field of display technologies, and in particular, to a display device and a display apparatus.

Background

In various display devices, especially those having a large screen (usually over 12 inches), the display device has a larger display panel size and a larger number of driver ICs, so that the heat generation of the display device is more obvious.

In a conventional large-size screen design, a support of a display device is directly bonded with a middle frame of the whole machine through acrylic high-viscosity glue, and a back bending area (pad bonding) connected with a display panel (panel) is bonded on the back of the middle frame (namely the surface of one side of the middle frame far away from the support), and a driving IC is arranged on the back bending area to realize the control of the display panel. However, the general polyester viscose has poor high temperature resistance, when the display device is used for a long time, the heating condition of the display device is serious, the viscose is easy to lose efficacy, the back bending area falls off, the problems that the display effect is influenced by poor contact of the driving IC and the like can occur, and meanwhile, the heating of the display panel can not be dissipated timely, the burn of the internal wiring of the panel can be caused, and the service life of the display device is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the embodiments of the present disclosure is to provide a display device and a display apparatus, so as to solve the problem that the display effect or the service life of the display device is affected due to the poor heat dissipation effect of the display device in the prior art.

The embodiment of the disclosure adopts the following technical scheme: a display device comprising at least: the display device comprises a display panel, a support piece and a middle frame; the display panel is connected with a first surface of the support piece, and at least one heat dissipation hole is formed in a second surface, opposite to the first surface, of the support piece; the middle frame is arranged on one side of the second surface of the supporting piece and is connected with the supporting piece through a connecting piece, so that a gap is reserved between the middle frame and the supporting piece.

In some embodiments, the depth of the heat dissipation holes is no more than 1/2 of the thickness of the support.

In some embodiments, the distance between any two adjacent heat dissipation holes is greater than the radius of a circle circumscribing the heat dissipation holes.

In some embodiments, the radius of the circumscribing circle of the louvers is between 1 and 5 centimeters.

In some embodiments, the sum of the orthogonal projection areas of all the louvers perpendicular to the second face of the support is 60% to 80% of the surface area of the second face of the support.

In some embodiments, the thermal via is a blind hole.

In some embodiments, the connecting member includes a plurality of first connecting structures respectively disposed at four corners of the second surface of the supporting member, and a plurality of second connecting structures respectively disposed at four corners of the first surface of the middle frame, wherein the first surface of the middle frame is a surface close to the second surface of the supporting member, the number of the first connecting structures and the number of the second connecting structures are the same, and the first connecting structures and the second connecting structures are matched with each other to achieve a fixed connection between the supporting member and the middle frame.

In some embodiments, the first connecting structure is a screw hole provided on the second surface of the support member, and the second connecting structure is a nut provided on the first surface of the middle frame.

In some embodiments, the screw hole has a depth of 1/2 of the thickness of the support member, and the nut protrudes to a height greater than 1/2 of the thickness of the support member in a direction perpendicular to the first surface of the middle frame.

In some embodiments, the middle frame is made of a metal material.

In some embodiments, the second surface of the middle frame is provided with a groove for accommodating a back bending area of the display device; the second surface of the middle frame is the surface opposite to the first surface of the middle frame.

In some embodiments, the display panel includes a back bending region, the back bending region is connected to a flexible circuit board, and the back bending region is at least provided with a driving IC to drive the display panel through the driving IC.

In some embodiments, the display panel is connected to a circuit board, the circuit board includes the back bend region, and the circuit board is fixed to the second surface of the middle frame through the back bend region, wherein the circuit board includes a chip on film and/or a flexible circuit board.

In some embodiments, the bottom surface of the groove is fixedly connected with the back bending region through heat-conducting silica gel.

In some embodiments, the depth of the groove is the same as the sum of the thicknesses of the thermally conductive silicone and the recurved zone.

Embodiments of the present disclosure also provide a display apparatus including at least the display device as described above.

The beneficial effects of this disclosed embodiment lie in: the heat dissipation holes are formed in the surface of the support piece, which is far away from the display panel, so that the specific surface of the support piece is increased, the heat dissipation performance of the support piece is improved in the same time, and the heat of the display panel is conveniently dissipated; meanwhile, the gap between the support piece and the middle frame is arranged through the connecting piece, the influence of the heat of the display panel on a back bending area is isolated, the phenomenon that the colloid drops is avoided, the integral efficient heat dissipation of the display device is realized, and the condition that the connection is poor or the service life of the display device is reduced is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present disclosure, and for those skilled in the art, other drawings may be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic diagram of a display device according to a first embodiment of the present disclosure;

FIG. 2 is a schematic view of a first arrangement of a second side of a support member according to a first embodiment of the present disclosure;

FIG. 3 is a schematic view of a second arrangement of the second side of the support member according to the first embodiment of the present disclosure;

FIG. 4 is a schematic view of a first side of a middle frame according to a first embodiment of the present disclosure;

FIG. 5 is a schematic view illustrating a groove on a middle frame according to a first embodiment of the present disclosure;

fig. 6 is a schematic view illustrating the arrangement of the heat conductive silicone grease according to the first embodiment of the present disclosure.

Detailed Description

Various aspects and features of the disclosure are described herein with reference to the drawings.

It should be understood that various modifications may be made to the embodiments of the present application. Accordingly, the foregoing description should not be considered as limiting, but merely as exemplifications of embodiments. Other modifications within the scope and spirit of the present disclosure will occur to those skilled in the art.

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the disclosure and, together with a general description of the disclosure given above, and the detailed description of the embodiments given below, serve to explain the principles of the disclosure.

These and other characteristics of the present disclosure will become apparent from the following description of preferred forms of embodiment, given as non-limiting examples, with reference to the attached drawings.

It should also be understood that, although the present disclosure has been described with reference to some specific examples, a person of skill in the art shall certainly be able to achieve many other equivalent forms of the disclosure, having the characteristics as set forth in the claims and hence all coming within the field of protection defined thereby.

The above and other aspects, features and advantages of the present disclosure will become more apparent in view of the following detailed description when taken in conjunction with the accompanying drawings.

Specific embodiments of the present disclosure are described hereinafter with reference to the accompanying drawings; however, it is to be understood that the disclosed embodiments are merely exemplary of the disclosure that may be embodied in various forms. Well-known and/or repeated functions and constructions are not described in detail to avoid obscuring the disclosure in unnecessary or unnecessary detail. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present disclosure in virtually any appropriately detailed structure.

The specification may use the phrases "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments," which may each refer to one or more of the same or different embodiments in accordance with the disclosure.

In various display devices, especially those having a large screen (usually more than 12 inches), the display device has a larger display panel size and a larger number of driver ICs, and thus the heat generation of the display device is more obvious.

In a conventional large-size screen design, a support of a display device is directly bonded with a middle frame of the whole machine through high-viscosity glue such as acrylic glue, a back bending area (pad bending) connected with a display panel is bonded on the back of the middle frame (namely the surface of one side of the middle frame far away from the support), and a driving IC is arranged on the back bending area to realize the control of the display panel. However, the general polyester viscose has poor high temperature resistance, when the display device is used for a long time, the heating condition of the display device is serious, the viscose is easy to lose efficacy, the back bending area falls off, the problems that the display effect is influenced by poor contact of the driving IC and the like can occur, and meanwhile, the heating of the display panel can not be dissipated timely, the burn of the internal wiring of the panel can be caused, and the service life of the display device is influenced.

In order to solve the above problem, a first embodiment of the present disclosure provides a display device, a schematic structural diagram of which is shown in fig. 1, the display device at least includes a display panel 10, a supporting member 20 for supporting the display panel 10, and a middle frame 30 for protecting the display panel 10 and the supporting member 20 and facilitating assembly with a complete machine. Specifically, the display panel 10 is connected to a first surface of the supporting member 20 (i.e., a bottom surface of the supporting member 20 in fig. 1), and the supporting member 20 is usually made of metal, so that the supporting member has a good heat conduction effect on the basis of having a strong supporting performance, and is convenient for dissipating heat generated by the display panel 10.

For the large-sized display panel 10, which generates more heat during operation and requires the display device to have better heat dissipation performance, the second surface (i.e. the surface opposite to the first surface, the top surface of the support 20 in fig. 1) of the support 20 in this embodiment is provided with at least one heat dissipation hole 21 (not shown in fig. 1), which is mainly disposed in the central area of the second surface of the support 20, so that the specific surface S of the support 20 is increased without affecting the supporting performance of the support 20, and the support 20 dissipates more heat at the same time, thereby achieving better heat dissipation effect. When actual preparation, can specifically set up louvre 21 as the blind hole, promote support piece 20's support intensity when guaranteeing the radiating effect, all use the heat dissipation blind hole to further explain afterwards.

The middle frame 30 is disposed on a side of the supporting member 20 away from the display panel 10, and the middle frame 30 and the supporting member 20 are fixedly connected by a connecting member 40 (as shown by a dashed line in fig. 1), and the middle frame 30 and the supporting member 20 are not in direct contact, and a certain gap is provided therebetween, so that heat insulation between the supporting member 20 and the middle frame 30 is achieved by air or other gas filled in the gap, thereby preventing heat emitted by the display panel 10 from being transferred to the middle frame 30 via the supporting member, affecting the heat dissipation effect of the back bending region 50 disposed on the middle frame 30, and simultaneously ensuring that the heat of the back bending region 50 is not transferred to the display panel 10. In addition, the connecting piece 40 is different from the colloid used in the prior art, and the connecting piece cannot lose the connecting function due to the influence of temperature, and although there may be a certain influence on the occupied space of the display device, the risk of bad connection between the supporting piece 20 and the middle frame 30 caused by the failure of the colloid material can be avoided, and meanwhile, the heat dissipation area of the display device is increased, and the heat dissipation effect is improved.

The second surface of the support 21 is usually provided with a plurality of blind heat dissipation holes 21, so as to achieve the purpose of increasing the specific surface S of the support 20 by the opening of the blind heat dissipation holes, and it can be known from the formula Q/t ═ S that the larger the specific surface S of the material, the more heat Q the material radiates at the same time t, and thus the heat dissipation performance of the support 20 is increased. In some embodiments, any two of the blind heat dissipation holes 21 are not overlapped, and the number of the blind heat dissipation holes 21 may be determined according to the size of the blind heat dissipation holes 21, the surface area of the second surface of the support 20, and the heat dissipation requirement; the sum of the orthographic projection areas of all the heat dissipation blind holes 21 perpendicular to the second surface of the support member 20 is usually set to account for 60% to 80% of the surface area of the second surface of the support member 20, if the area is less than 60%, the required heat dissipation effect may not be achieved, and if the area exceeds 80%, the number of the heat dissipation blind holes 21 is too large, which may affect the support performance of the support member 20, and after the display panel 10 is attached, the stamping risk of the display panel 10 is easily generated.

Furthermore, the depth of the blind heat dissipation hole 21 is determined according to the thickness of the support 20, and generally does not exceed 1/2 of the thickness of the support 20, and if the depth of the blind heat dissipation hole 21 is too deep, the thickness of the support 20 at the corresponding position is reduced, which affects the supporting performance of the support 20.

When the heat dissipation blind hole 21 is actually manufactured, the shape of the heat dissipation blind hole 21 may be set to be circular, rectangular, triangular or any other shape as long as the design requirement is met, and the shape is not limited in this embodiment. However, in general, the sizes of the plurality of blind heat dissipation holes 21 disposed on the same supporting member 20 are the same, and the situations that the sizes of some blind heat dissipation holes 21 are larger and the sizes of some blind heat dissipation holes 21 are smaller do not occur, so that the stress distribution of the supporting member 20 is more uniform, and the supporting performance of the supporting member 20 is not affected. When arranging of blind hole 21 dispels the heat, as long as let a plurality of blind hole 21 of dispelling the heat relatively even set up on support piece 20 second face can, and the distance between arbitrary two adjacent blind hole 21 of dispelling the heat should not be too near, lead to support piece 20's support intensity to descend easily, therefore, under the condition of not restricting the blind hole 21 shape of dispelling the heat, this embodiment restricts the distance L between arbitrary two adjacent blind hole 21 of dispelling the heat all be greater than blind hole 21's circumscribed circle radius R can, if blind hole 21 dispels the heat is the circular port, then it can to prescribe a limit to the distance between arbitrary two adjacent blind hole 21 of dispelling the heat to be greater than blind hole 21 radius of dispelling the heat. In some embodiments, the radius of the circumscribed circle of the blind heat dissipation hole 21 is set to be between 1 cm and 5 cm, if the radius is too small, the blind heat dissipation hole 21 cannot achieve a good heat dissipation effect, and if the radius exceeds 5 cm, the strength of the remaining support member 20 at the position of the blind heat dissipation hole 21 is reduced, which easily affects the display effect of the display device.

Fig. 2 and fig. 3 respectively show two arrangements of the blind heat dissipation holes 21 on the premise that the blind heat dissipation holes 21 are circular holes. The blind heat dissipation holes 21 shown in fig. 2 are randomly arranged on the second surface of the support 20, and there is no special position limitation between adjacent blind heat dissipation holes 21 as long as L is greater than R; the blind heat dissipating holes 21 shown in fig. 3 are arranged in an array on the second surface of the support member 20. In actual installation, the number, size and position of the blind heat dissipation holes 21 may be designed according to the size of the supporting member 20 and the heat dissipation requirement of the display device, and the embodiment is not particularly limited.

Further, the connecting member 40 at least includes a plurality of first connecting structures 41 respectively disposed at four corners of the second surface of the supporting member 20 and a plurality of second connecting structures 42 disposed at four corners of the first surface of the middle frame 30, wherein the first surface of the middle frame 30 is a surface close to the second surface of the supporting member 20, and the first connecting structures 41 and the second connecting structures 42 are matched with each other in shape and function to realize connection and fixation of the supporting member 20 and the middle frame 30, so the number of the first connecting structures 41 and the second connecting structures 42 should be the same, and the positions of the first connecting structures 41 and the positions of the second connecting structures 42 on the supporting member 20 and the middle frame 30 are corresponding to each other, thereby ensuring that the first connecting structures 41 and the second connecting structures 42 can be smoothly connected.

As shown in fig. 2 and 3, a first connecting structure 41 is disposed at each of four corners of the second surface of the supporting member 20, and fig. 4 is a schematic view illustrating a second connecting structure 42 disposed at each of four corners of the first surface of the middle frame 30, wherein when the connection is actually performed, the second surface of the supporting member 20 is disposed opposite to the first surface of the middle frame 30, and the first connecting structure 41 and the second connecting structure 42 are aligned and matched with each other to achieve the fixation. In some embodiments, the first connecting structure 41 may be configured as a screw hole, the second connecting structure 42 is configured as a nut, the first connecting structure 41 may also be configured as a concave structure having a slot, the second connecting structure may also be configured as a convex structure matching with the slot, or other connecting structures that can be fixed may also be used, which is not limited in this embodiment.

Taking the first connecting structure 41 as a screw hole and the second connecting structure 42 as a nut as an example, the depth of the screw hole formed on one side of the supporting member 20 is 1/2 of the thickness of the supporting member, i.e., the connecting effect between the supporting member and the nut is ensured as much as possible on the premise of not affecting the strength of the supporting member 20; the nut disposed on one side of the middle frame 30 needs to ensure that the height of the vertical protrusion of the middle frame 30 is greater than 1/2 of the thickness of the supporting member 20, so that a gap can be formed between the supporting member 20 and the middle frame 30 after the nut is fixed to the screw hole, and the purpose of insulating heat by using air in the gap can be achieved.

When actually setting up center 30, the preparation that can select the metal material to carry out center 30 makes it still have better heat dispersion when guaranteeing that it has good support strength. In the actual use process of the display device, the second surface of the middle frame 30 (i.e. the surface opposite to the first surface of the middle frame, the top surface of the middle frame 30 in fig. 4) is further provided with a groove 31 for accommodating the back bending region 50 connected to the display panel 10, as shown in fig. 5, the size (e.g. the groove width a) of the groove 31 may be the same as the size of the current back bending region 50. The back bending area 50 is generally used for arranging a driver IC of the display panel 10, and is connected with the display panel 10 through a Flexible Printed Circuit (FPC), and is placed at the bottom of the second surface of the middle frame 30 after the FPC is bent, so as to reduce the width of a frame of the display device arranged around, and the driver IC also needs heat dissipation to ensure the working performance of the driver IC during working, so that after the back bending area 50 is connected with the middle frame 30 made of metal, the heat generated by the driver IC can be dissipated through the metal middle frame 30 with a larger area, and the heat dissipation effect of the display device is further improved. In addition, the display panel 10 can be connected to the middle frame 30 through a circuit board, which includes a back bending region 50 and is fixed on the second surface of the middle frame 30 through the back bending region 50, wherein the circuit board can be a Flexible Printed Circuit (FPC), a Chip On Film (COF), or other flexible circuit boards.

In some embodiments, the connection between the back bending region 50 and the bottom of the groove 31 may also be made through a heat conductive silicone grease 51, as shown in fig. 6, the heat conductive silicone grease 51 is coated on the surface of the back bending region 50 contacting the middle frame 30, embedded in the groove 31 after being bent, and adhered to the bottom of the groove 31. By the arrangement of the heat conductive silicone grease 51, good heat transfer between the back bending region 50 and the middle frame 30 can be realized, so that high heat generated by the operation of the driver IC is transferred to the middle frame 30 through the heat conductive silicone grease 51, and efficient heat dissipation is performed by utilizing the excellent heat dissipation performance of the middle frame 30 and the gap between the middle frame 30 and the support member 20.

It should be noted that, when the groove 31 is actually opened, the depth d of the groove 31 may be set according to the thickness of the heat-conducting silicone grease 51 and the thickness of the back bending area 50, and the depth d of the groove 31 is usually set to the sum of the thickness of the heat-conducting silicone grease 51 and the thickness of the back bending area 50, so that the back bending area 50 is completely accommodated in the groove 31 after being bent, thereby ensuring that the second surface of the middle frame 30 is flat, and facilitating the later assembly with the whole machine.

According to the display panel heat dissipation device, the heat dissipation blind hole is formed in the surface, far away from the display panel, of the support piece, the specific surface of the support piece is increased, the heat dissipation performance of the support piece is improved in the same time, and the heat dissipation of the display panel is facilitated; meanwhile, the gap between the support piece and the middle frame is arranged through the connecting piece, the influence of the heat of the display panel on a back bending area is isolated, the phenomenon that the colloid falls off is avoided, the integral efficient heat dissipation of the display device is realized, and the condition that the display device is badly connected or the service life of the display device is shortened is avoided.

The second embodiment of the present disclosure provides a display device, which may be a large-sized device with a display function, such as a notebook computer, a tablet computer, and a vehicle-mounted computer, and the device at least includes the display device provided in the first embodiment, and through the arrangement of the heat dissipation blind holes and the gaps of the support members in the display device, the heat dissipation performance of the display device is improved, the phenomenon that the colloid drops is avoided, the overall efficient heat dissipation of the display device is realized, the occurrence of the poor connection or the reduced service life of the display device is avoided, and the good service environment of the display device is ensured.

While the present disclosure has been described in detail with reference to the embodiments, the present disclosure is not limited to the specific embodiments, and those skilled in the art can make various modifications and alterations based on the concept of the present disclosure, and the modifications and alterations should fall within the scope of the present disclosure as claimed.

Claims (16)

1. A display device, comprising:

the display device comprises a display panel, a support piece and a middle frame; wherein, the first and the second end of the pipe are connected with each other,

the display panel is connected with the first surface of the support piece, and at least one heat dissipation hole is formed in the second surface, opposite to the first surface, of the support piece;

the middle frame is arranged on one side, far away from the display panel, of the support piece, and the middle frame is connected with the support piece through a connecting piece, so that a gap is formed between the middle frame and the support piece.

2. The display device according to claim 1, wherein the depth of the heat dissipation hole is not more than 1/2 of the thickness of the support.

3. The display device according to claim 1, wherein a distance between any two adjacent heat dissipation holes is larger than a radius of a circumscribed circle of the heat dissipation holes.

4. The display device according to claim 3, wherein a radius of a circumscribed circle of the heat dissipation hole is between 1 and 5 cm.

5. The display device according to claim 1, wherein the sum of the orthogonal projection areas of all the heat dissipation holes perpendicular to the second surface of the support is 60% to 80% of the surface area of the second surface of the support.

6. The display device according to claim 1, wherein the heat dissipation hole is a blind hole.

7. The display device according to claim 1, wherein the connecting member comprises a plurality of first connecting structures respectively disposed at four corners of the second surface of the supporting member, and a plurality of second connecting structures respectively disposed at four corners of the first surface of the middle frame, wherein the first surface of the middle frame is a surface close to the second surface of the supporting member, the first connecting structures and the second connecting structures are equal in number, and the first connecting structures and the second connecting structures are matched with each other to realize a fixed connection between the supporting member and the middle frame.

8. The display device according to claim 7, wherein the first connecting structure is a screw hole provided on the second surface of the support member, and the second connecting structure is a nut provided on the first surface of the middle frame.

9. The display device according to claim 8, wherein the depth of the screw hole is 1/2 of the thickness of the support member, and the height of the nut projecting in the vertical direction of the first surface of the middle frame is greater than 1/2 of the thickness of the support member.

10. The display device according to any one of claims 1 to 9, wherein the middle frame is made of a metal material.

11. The display device according to claim 10, wherein the second surface of the middle frame is provided with a groove for accommodating a back bending area of the display device, and the second surface of the middle frame is a surface opposite to the first surface of the middle frame.

12. The display device according to claim 11, wherein the display panel comprises a back-bending region, the back-bending region is connected to a flexible circuit board, and the back-bending region is provided with at least a driving IC for driving the display panel through the driving IC.

13. The display device according to claim 11, wherein the display panel is connected to a circuit board, the circuit board includes the back bend region, and the circuit board is fixed to the second surface of the middle frame through the back bend region, wherein the circuit board includes a flip chip and/or a flexible circuit board.

14. The display device as claimed in claim 11, wherein the bottom surface of the groove is fixedly connected to the back bending region through a heat conductive silicone.

15. The display device according to claim 14, wherein a depth of the groove is the same as a sum of thicknesses of the thermally conductive silicone and the back bend region.

16. A display device characterized in that it comprises at least a display apparatus according to any one of claims 1 to 15.

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