CN114724469A

CN114724469A - Fixing structure of display module and display device

Info

Publication number: CN114724469A
Application number: CN202210272074.5A
Authority: CN
Inventors: 金尚楠; 黄棋; 冯彬峰; 李飞; 王佳祥; 肖博文; 崔志宏
Original assignee: BOE Technology Group Co Ltd; Chengdu BOE Optoelectronics Technology Co Ltd
Current assignee: BOE Technology Group Co Ltd; Chengdu BOE Optoelectronics Technology Co Ltd
Priority date: 2022-03-18
Filing date: 2022-03-18
Publication date: 2022-07-08
Anticipated expiration: 2042-03-18
Also published as: CN114724469B

Abstract

The utility model provides a fixed knot of display module assembly constructs and display device, and this display module assembly's fixed knot constructs and includes: the back plate comprises a panel area, a bending area and a circuit area, wherein the circuit area and the panel area are positioned on one side of the bending area; the circuit board is arranged on one side of the binding area of the back plate, which is deviated from the panel area; the clamp comprises two opposite clamping arms, the end part of the circuit area extends into the space between the two clamping arms, and the two clamping arms clamp the backboard. The influence of circuit board heating to the display module temperature rise can be avoided.

Description

Fixing structure of display module and display device

Technical Field

The utility model relates to a show technical field, particularly, relate to a fixed knot of display module assembly constructs and display device.

Background

Currently, OLED display modules are widely used in various electronic products as display components of electronic devices. Compared with other screens, the vehicle-mounted screen has higher requirements on heat dissipation of the OLED, and the temperature rise of the vehicle-mounted OLED needs to be reduced under the background.

The conventional process of the OLED module can attach the PCB to the metal back plate, and the heat of the PCB high-heating device can be conducted to the whole module through the aluminum plate. To reduce the temperature rise of the module, the influence caused by the heat generation of the PCB needs to be reduced.

It is to be noted that the information disclosed in the above background section is only for enhancement of understanding of the background of the present disclosure, and thus may include information that does not constitute prior art known to those of ordinary skill in the art.

Disclosure of Invention

An object of the embodiment of the present disclosure is to provide a display module's fixed knot constructs and display device, can avoid the circuit board to generate heat the influence to the display module temperature rise.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows, or in part will be obvious from the description, or may be learned by practice of the disclosure.

According to an aspect of the embodiments of the present disclosure, there is provided a fixing structure of a display module, the fixing structure including:

the back plate comprises a panel area, a bending area and a circuit area, wherein the circuit area and the panel area are positioned on one side of the bending area;

the circuit board is arranged on one side, away from the panel area, of the binding area of the back plate;

the clamp comprises two opposite clamping arms, the end part of the circuit area extends into the space between the two clamping arms, and the two clamping arms clamp the backboard.

In an exemplary embodiment of the present disclosure, through holes are provided on the circuit area and the circuit board of the back plate; at least one clamping arm is provided with a backstop bulge facing to the other clamping arm; when the back plate extends into the space between the two clamping arms, the retaining protrusion is positioned in the through hole.

In an exemplary embodiment of the present disclosure, the retaining protrusion is integrally formed with the clamp arm.

In an exemplary embodiment of the present disclosure, the fixing structure further includes: a positioning member; through holes are respectively formed in the circuit area of the back plate, the circuit board and the two clamping arms; when the back plate extends between the two clamping arms, the positioning piece is simultaneously positioned in the through holes of the back plate and the two clamping arms to limit the back plate and the two clamping arms.

In an exemplary embodiment of the disclosure, the positioning element is a screw, an internal thread is formed on an inner wall of the through hole on at least one of the clamping arms, and the screw penetrates through the through hole on one of the clamping arms and the back plate to be in threaded connection with the other clamping arm.

In an exemplary embodiment of the disclosure, at least one of the clamping arms is everted at a rim extending into an end of the back plate.

In an exemplary embodiment of the present disclosure, the clip is U-shaped.

In an exemplary embodiment of the present disclosure, the fixing structure further includes:

the bonding layer is arranged between the circuit board and the back plate, and the circuit board is bonded with the back plate through the bonding layer.

In an exemplary embodiment of the present disclosure, the material of the adhesive layer includes a heat insulating glue.

According to another aspect of the embodiments of the present disclosure, a display device is provided, where the display device includes the fixing structure of the display module provided in any of the embodiments.

According to the fixing structure of the display module, the circuit area of the back plate is clamped by the clamp, so that the effect of heightening and fixing the circuit board can be achieved, the circuit board can be far away from the display panel, the influence of the self heat productivity of the circuit board on the display panel is reduced, and the influence of the heat productivity of the circuit board on the temperature rise of the display module is solved; in addition, the risks of membrane printing and the like caused by riveting studs with conventional flat metal are avoided.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure. It is to be understood that the drawings in the following description are merely exemplary of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without the exercise of inventive faculty. In the drawings:

fig. 1 is a schematic view of a fixing structure of a display module according to an embodiment of the disclosure;

FIG. 2 is a front view of the clamp provided in the embodiment shown in FIG. 1;

FIG. 3 is a side view of the clamp provided in the embodiment shown in FIG. 1;

FIG. 4 is a top view of the clamp provided in the embodiment shown in FIG. 1;

fig. 5 is a schematic view of a fixing structure of a display module according to another embodiment of the disclosure;

FIG. 6 is a front view of the clamp provided in the embodiment shown in FIG. 5;

FIG. 7 is a side view of the clamp provided in the embodiment shown in FIG. 5;

fig. 8 is a top view of the clip provided in the embodiment shown in fig. 5.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art.

Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the subject matter of the present disclosure can be practiced without one or more of the specific details, or with other methods, components, devices, steps, and so forth. In other instances, well-known methods, devices, implementations, or operations have not been shown or described in detail to avoid obscuring aspects of the disclosure.

Furthermore, the drawings are merely schematic illustrations of the invention and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted. The terms "a," "an," "the," and "said" are used to indicate the presence of one or more elements/components/etc.; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements other than the listed elements.

The inventor finds that the foam padding reliability is difficult to meet the requirements of vehicle specifications experiments through foam padding or riveting studs on a metal back plate, and the riveting studs on the back plate easily generate film marks in the screen laminating process.

To solve the above technical problem, an embodiment of the present disclosure first provides a fixing structure of a display module, as shown in fig. 1, the fixing structure of the display module includes: a back plate 10, a circuit board 40 and a clamp.

The back plate 10 includes a panel area 110, a bending area 120 and a circuit area 130, wherein the circuit area 130 and the panel area 110 are located at one side of the bending area 120; the circuit board 40 is arranged on one side of the binding area of the back plate 10, which is far away from the panel area 110; the clamp comprises two oppositely arranged clamping arms between which the end of the circuit area 130 extends, the two clamping arms forming a clamping of the backpanel 10.

According to the fixing structure of the display module, the circuit area 130 of the back plate 10 is clamped by the clamp, so that the effect of heightening and fixing the circuit board 40 can be achieved, the circuit board 40 can be far away from the display panel, and the influence of the self heat productivity of the circuit board 40 on the display panel is reduced, so that the influence of the heat productivity of the circuit board 40 on the temperature rise of the display module is solved; in addition, the risks of membrane printing and the like caused by riveting studs with conventional flat metal are avoided.

Specifically, as shown in fig. 1, a display functional layer 20 is disposed on a panel area 110 of a back panel 10 of the display module, and the display functional layer 20 may constitute an OLED display panel or an LCD display panel, which is not limited in this disclosure.

Specifically, as shown in fig. 1, after the back plate 10 is bent by the bending region 120, the circuit region 130 is bent to the back side of the panel region 110. Backplate 10 adopts metal material to form usually, uses anchor clamps to reach the fixed effect of circuit board 40 bed hedgehopping to solve circuit board 40 and generate heat the influence to the display module temperature rise. The bending height of the metal back plate 10 can be adjusted according to actual requirements.

Specifically, as shown in fig. 1, the circuit board 40 in the display module is disposed on the circuit area 130 of the back plate 10 through the adhesive layer 30. Wherein, adhesive linkage 30 can be glued by the heat insulation and form, can further avoid generating heat of circuit board 40 to the influence of display module temperature rise through the heat insulation glue.

In an embodiment of the present disclosure, for an application scenario where a small-sized circuit board and a structural strength requirement are low, the fixture 51 may be used for fixing.

As shown in fig. 1-4, the clamp 51 is U-shaped, and the two clamping arms 511 clamp the backboard 10. The clamp 51 may be made of a metal material, so that the two clamping arms 511 have an elastic clamping force. The metal fixture mainly relates to blanking, punching and bending processes, and is low in manufacturing cost, high in structural stability and convenient and fast to install and disassemble. Wherein, the clamp 51 can also be made of plastic material; or, it may be formed by compounding a metal material with a plastic, which is not limited by the present disclosure.

The width of the two clamping arms 511 can match the width of the backboard 10, i.e. the backboard 10 can be fixed by only one clamp 51. Alternatively, the width of the clamping arm 511 is smaller than the width of the backboard 10, and the backboard 10 can be fixed by one clamp 51 or a plurality of clamps 51. When a plurality of clamps 51 are provided to fix the backboard 10, the plurality of clamps 51 may be evenly spaced on the backboard 10 to improve the stability of fixing the backboard 10.

The one clamping arm 511 may include a plurality of sub-clamping arms arranged at intervals, and the plurality of sub-clamping arms cooperate to clamp and fix the backplane 10. The size and shape of each sub-gripper arm may be the same or different.

As shown in fig. 1, after the metal back plate 10 is bent, the circuit board 40 is fixed by the adhesive layer 30, the adhesive layer 30 may be a heat-insulating adhesive, the heat-insulating adhesive can perform a heat-insulating function, and the metal back plate 10 and the circuit board 40 can be pre-fixed so as to be fixed in the next step.

The size of the gap between the two clamping arms 511 is matched with the thickness of the back plate 10 and the circuit board 40, so that after the back plate 10 extends into the clamp 51, the two clamping arms 511 can clamp and fix the back plate 10 and the circuit board 40.

Specifically, the circuit area 130 of the back plate 10 and the circuit board 40 are provided with through holes 131; at least one clamping arm 511 is provided with a backstop bulge facing to the other clamping arm 511; when the backboard 10 extends between the two clamping arms 511, the retaining protrusion is located in the through hole 131 to prevent the backboard 10 from being withdrawn from between the two clamping arms 511.

As shown in fig. 1, the through-hole 131 penetrates the back sheet 10, the adhesive layer 30, and the wiring board 40. Of course, it is also possible to form only a recess in the back plate 10 or the wiring board 40, the recess being able to receive the retaining projection.

As shown in fig. 2 to 4, the retaining projection is integrally formed with the grip arm 511. By dividing one clip arm 512 from the clip arm 511, the clip arm 512 is bent toward the other clip arm 511, and the end of the clip arm 512 is oriented in the same direction as the insertion direction of the backboard 10. A clamping arm 512 is formed by dividing a U-shaped groove on the clamping arm 511, and the U-shaped groove is weakened to facilitate deformation.

When the back plate 10 extends into the clamping arm 511, the end of the clamping arm 512 is clamped into the through hole 131; when the backboard 10 exits the clamping arm 511, the end of the clamping arm 512 abuts against the side wall of the through hole 131 to form a limit for the backboard 10 to exit, thereby ensuring the stability of the clamp 51 for fixing the backboard 10.

When the clamp 51 needs to be disassembled, the two clamping arms 511 are moved away from each other by external force, so that the end parts of the clamping arms 512 move out of the through holes 131, the limit of the clamping arms 512 for withdrawing the backboard 10 is cancelled, the backboard 10 is withdrawn from the clamp 51, and the purpose of disassembling the clamp 51 is achieved. Or, an external force is directly applied to the clip arm 512, so that the end of the clip arm 512 directly withdraws from the through hole 131, thereby eliminating the limit of the clip arm 512 to withdraw the backboard 10, withdrawing the backboard 10 from the clamp 51, and realizing the purpose of disassembling the clamp 51.

After the backboard 10 is fixed to the clamp 51, the clamp arm 512 and the through hole 131 are in interference fit, so that the clamp 51 is prevented from moving, and the stability of the clamp 51 for fixing the backboard 10 is ensured.

As shown in fig. 2 and 3, the two clamping arms 511 are provided with the clamping arms 512, and the two clamping arms 512 can be simultaneously located in the through holes 131 to limit the back plate 10 to exit, so that the stability of the clamp 51 for fixing the back plate 10 is improved.

The retaining projection may be formed by a projection provided on a side wall of the holding arm 511, for example, a projection provided on a side wall of the two holding arms 511 facing each other as the retaining projection. Other types of stopping protrusions can be arranged by those skilled in the art, and all that can achieve the same technical effect falls within the protection scope of the present disclosure.

Wherein at least one of the retaining arms 511 is everted over a rim 513 extending into one end of the backboard 10. As shown in FIG. 2, the edges 513 of the two clamping arms 511 extending into the backboard 10 are turned outwards to guide the backboard 10 extending into the clamp 51, so that the backboard 10 can be fixed by extending into the clamp 51.

In another embodiment of the disclosure, a large-size circuit board and an application scenario with a high strength requirement can be fixed by using a U-shaped nut and a screw.

As shown in fig. 5 to 8, the fixing structure further includes: the positioning member 60. Through holes 522 are respectively arranged on the circuit area 130 of the back plate 10, the circuit board 40 and the two clamping arms 521; when the back plate 10 extends between the two clipping arms 521, the positioning element 60 is simultaneously located in the through holes 522 of the back plate 10 and the two clipping arms 521, so as to limit the back plate 10 and the two clipping arms 521.

The clamp 52 may be made of a metal material, so that the two clamp arms 521 have an elastic clamping force. The metal fixture 52 mainly relates to blanking, punching and bending processes, and has the advantages of low manufacturing cost, high structural stability and convenience in installation and disassembly. Wherein, the clamp 52 can also be made of plastic material; alternatively, the clamp 52 is also formed of a composite of a metal material and a plastic, which is not limited by the present disclosure.

The width of the two clamping arms 521 can match the width of the backboard 10, that is, the backboard 10 can be fixed by only one clamp 52. Alternatively, the width of the clamping arm 521 is smaller than the width of the backboard 10, and the backboard 10 can be fixed by one clamp 52 or a plurality of clamps 52. When a plurality of clamps 52 are provided to fix the backboard 10, the plurality of clamps 52 may be evenly spaced on the backboard 10 to improve the stability of fixing the backboard 10.

The clamping arm 521 may include a plurality of sub-clamping arms arranged at intervals, and the sub-clamping arms cooperate to clamp and fix the backboard 10. The size and shape of each sub-gripper arm may be the same or different.

As shown in fig. 5, after the metal back plate 10 is bent, the circuit board 40 is fixed by the adhesive layer 30, the adhesive layer 30 may be a heat-insulating adhesive, the heat-insulating adhesive can perform a heat-insulating function, and the metal back plate 10 and the circuit board 40 may be pre-fixed for further fixing.

The size of the gap between the two clamping arms 521 is matched with the thickness of the back plate 10 and the circuit board 40, so that after the back plate 10 extends into the clamp 52, the two clamping arms 521 can clamp and fix the back plate 10 and the circuit board 40.

The positioning member 60 is a screw, an internal thread is formed on an inner wall of the through hole 522 of at least one of the clamping arms 521 to form a threaded hole 523, and the screw passes through the through hole 522 of one of the clamping arms 521 and the back plate 10 to be in threaded connection with the threaded hole 523 of the other clamping arm 521. As shown in fig. 6-8, the clamp 52 may be a U-nut.

As an example, the positioning element 60 may also be a bolt, and both the two clamping and circuit boards 40 and the back plate 10 are provided with through holes without internal threads, and the bolt is fixed by a nut after passing through the through holes.

The positioning member 60 may also be a plug, and the two clamping and circuit boards 40 and the back plate 10 are provided with through holes without internal threads, and after the plug passes through the through holes, a plug clip is provided at an end of the plug to fix the plug.

Illustratively, the positioning member 60 may also be a positioning rod, which is in interference fit with the through hole to achieve fixation in the through hole.

The present disclosure is not limited to the specific type of the positioning member 60, and all that can achieve the same technical effect is within the scope of the present disclosure.

As shown in fig. 5, a positioning member 60 may be disposed on the fixture 52; alternatively, a plurality of positioning members 60 are also provided, as the present disclosure is not limited thereto.

Wherein the edge 524 of at least one of the retaining arms 521 extending into one end of the backplate 10 is everted. As shown in fig. 6, the edges 524 of the two clipping arms 521 extending into one end of the backboard 10 are turned outwards to guide the backboard 10 extending into the fixture 52, so that the backboard 10 can be fixed by extending into the fixture 52.

In addition, the clamp shown in fig. 1-4 and the clamp shown in fig. 5-8 can be used in combination to further improve the fixing effect on the back plate, so that the heat dissipation problem of the circuit board is solved and the cost is optimized.

The embodiment of the present disclosure further provides a display device, which includes the fixing structure of the display module. The display device can be a vehicle-mounted display device, a television, an advertisement screen or other terminal equipment with a display panel, and the beneficial effects of the display device can refer to the discussion about the beneficial effects in the fixing structure of the display module, and are not repeated herein.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. The utility model provides a fixed knot of display module assembly constructs which characterized in that includes:

2. The fixing structure according to claim 1, wherein through holes are provided on the circuit area of the back plate and the circuit board; at least one clamping arm is provided with a backstop bulge facing to the other clamping arm; when the back plate extends into the space between the two clamping arms, the retaining protrusion is positioned in the through hole.

3. The fixation structure of claim 2, wherein the backstop projection is of unitary construction with the clamp arm.

4. The fixation structure of claim 1, further comprising: a positioning member; through holes are respectively formed in the circuit area of the back plate, the circuit board and the two clamping arms; when the back plate extends between the two clamping arms, the positioning piece is simultaneously positioned in the through holes of the back plate and the two clamping arms to limit the back plate and the two clamping arms.

5. The fastening structure according to claim 4, wherein the positioning member is a screw, and an internal thread is formed on an inner wall of the through hole of at least one of the clamping arms, and the screw passes through the through hole of one of the clamping arms and the back plate to be threadedly connected with the other clamping arm.

6. The fixation structure of claim 1, wherein at least one of the clamping arms is everted at a rim extending into an end of the back plate.

7. The fixation structure of claim 1, wherein the clamp is U-shaped.

8. The fixation structure of claim 1, further comprising:

9. The fixation structure of claim 8, wherein the material of the adhesive layer comprises a thermally insulating glue.

10. A display device, comprising the fixing structure of the display module set according to any one of claims 1 to 9.