CN220752458U - Display module - Google Patents

Abstract

The application relates to a display module. The display module comprises a panel assembly, a flexible circuit board and a fixing structure. The panel assembly has a front face and a back face facing away from each other. One end of the flexible circuit board is connected to the panel assembly, the other end of the flexible circuit board is connected with an electric connector, and at least part of the flexible circuit board and the electric connector are located on one side of the back surface of the panel assembly. The fixing structure is used for fixing the electric connector on the back surface of the panel assembly; wherein the securing structure is at least partially between the electrical connector and the back side of the panel assembly. The display module is characterized in that the fixing structure is arranged to be at least partially located between the electric connector and the back surface of the panel assembly and used for isolating the electric connector of the flexible circuit board from the back surface of the panel assembly, so that the back surface of the panel assembly is prevented from being scratched, and the use performance of the backlight module and the whole display module is guaranteed.

Description

Display module

Technical Field

The application belongs to the technical field of display, and particularly relates to a display module.

Background

In the existing display field, before the display module assembly, the flexible circuit board is reversely folded at the back side of the display screen in a bending mode. For the LCD display module with the backlight module, if the flexible circuit board is improperly arranged, the back side of the backlight module is easily scratched, so that the performance of the backlight module is affected.

Disclosure of Invention

The application provides a tiled display device to solve the shortcomings in the related art.

According to an embodiment of the present application, there is provided a display module, including:

a panel assembly having a front face and a back face facing away from each other;

a flexible circuit board, one end of which is connected with the panel assembly, and the other end of which is connected with an electric connector, wherein at least part of the flexible circuit board and the electric connector are positioned on one side of the back surface of the panel assembly;

a fixing structure for fixing the electrical connector to the back surface of the panel assembly; wherein the securing structure is at least partially between the electrical connector and the back side of the panel assembly.

In some embodiments, the securing structure includes a spacer structure at least partially between the electrical connector and the back side of the panel assembly, the spacer structure including a first adhesive layer facing toward the side of the panel assembly and a flexible buffer layer on a side of the first adhesive layer facing away from the panel assembly.

In some embodiments, the first adhesive layer includes a first adhesive portion and a first handling portion connected to one end of the first adhesive portion, and a first operation layer is attached to a surface of the first handling portion, which is close to one side of the panel assembly, and the first operation layer is a non-adhesive film layer.

In some embodiments, the securing structure further comprises an adhesive securing structure comprising a cladding region cladding a side of the electrical connector facing away from the panel assembly and an adhesive region adhered to the spacer structure or the back of the panel assembly.

In some embodiments, the adhesive securing structure has a slot opening toward a side of the panel assembly and adapted to mate with the electrical connector.

In some embodiments, the difference between the slot depth T of the card slot and the thickness of the electrical connector is within 0.15 mm.

In some embodiments, the card slot has opposite sidewalls, the distance between the sidewalls and the electrical connector being within 0.25 mm.

In some embodiments, the adhesive fixing structure comprises a second adhesive layer facing to one side of the panel assembly and a protective layer located on one side of the second adhesive layer facing away from the panel assembly, and the clamping groove penetrates through part or all of the second adhesive layer in the thickness direction; wherein the protective layer is a non-adhesive film layer.

In some embodiments, the second adhesive layer includes a second adhesive portion and a second handling portion connected to at least one side of the adhesive portion, and a second operation layer is attached to a surface of the second handling portion near one side of the panel assembly, where the second operation layer is a non-adhesive film layer.

In some embodiments, the panel assembly includes a panel layer and a backlight module, the backlight module is disposed on a back side of the panel layer, and the back surface is a surface of the backlight module facing away from a side of the panel layer.

According to the above embodiment, the fixing structure is at least partially disposed between the electrical connector and the back surface of the panel assembly, and is used for separating the electrical connector of the flexible circuit board from the back surface of the panel assembly, so that the back surface of the panel assembly is prevented from being scratched, and the use performance of the backlight module and the whole display module is ensured.

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 application.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.

Fig. 1 is a back view of a display module shown according to an embodiment of the present application;

FIG. 2 is a front view of a spacer structure according to an embodiment of the present application;

FIG. 3 is a cross-sectional view of the spacer structure shown in FIG. 2;

fig. 4 is a rear view showing a partial structure of a display module according to an embodiment of the present application;

FIG. 5 is a front view of an adhesive securing structure according to an embodiment of the present application;

FIG. 6 is a cross-sectional view of the adhesive attachment structure of FIG. 5;

fig. 7 is a rear view showing a partial structure of another display module according to an embodiment of the present application;

fig. 8 is an enlarged schematic view of a shown in fig. 7.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as detailed in the accompanying claims.

The terminology used in the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The terms "a" or "an" and the like as used in the description and the claims do not denote a limitation of quantity, but rather denote the presence of at least one. "plurality" means two or more. The word "comprising" or "comprises", and the like, means that elements or items appearing before "comprising" or "comprising" are encompassed by the element or item recited after "comprising" or "comprising" and equivalents thereof, and that other elements or items are not excluded. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms "upper" and/or "lower" and the like are used for ease of description only and are not limited to one position or one spatial orientation. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.

In the existing display field, before the display module assembly, the flexible circuit board is reversely folded at the back side of the display screen in a bending mode. For the LCD display module with the backlight module, if the flexible circuit board is improperly set, the back side of the backlight module is easily scratched, so as to affect the performance of the backlight module, especially when the flexible circuit board is provided with a connector, the back side of the backlight module is easily scratched by a connection terminal or a connection PIN (PIN) of the connector, and the connection terminal or the connection PIN is also easily deformed in the process of interaction with the backlight module so as to affect the subsequent electrical connection effect.

The application provides a display module. The display module comprises a panel assembly, a flexible circuit board and a fixing structure. The panel assembly has a front face and a back face facing away from each other. One end of the flexible circuit board is connected to the panel assembly, the other end of the flexible circuit board is connected with an electric connector, and at least part of the flexible circuit board and the electric connector are located on one side of the back surface of the panel assembly. The fixing structure is used for fixing the electric connector on the back surface of the panel assembly; wherein the securing structure is at least partially between the electrical connector and the back side of the panel assembly. Above-mentioned display module assembly is through setting up fixed knot structure to be located at least partially between the electric connector with panel assembly's the back for with flexible circuit board's electric connector panel assembly's the back with panel assembly's the back keeps apart, is favorable to avoiding panel assembly's the back to be scratched, thereby guarantees backlight unit and whole display module assembly's performance, also is favorable to avoiding simultaneously being unfavorable for influence such as follow-up electric connection because deformation that the interact led to between electric connector and panel assembly's the back is unfavorable for, is favorable to guaranteeing display module assembly's yield.

Fig. 1 is a rear view of a display module 100 according to an embodiment of the present application. Referring to fig. 1, and as necessary, in conjunction with fig. 2 to 8, the display module 100 shown in fig. 1 includes a panel assembly 10, a flexible circuit board 20 and a fixing structure 30. Wherein the panel assembly 10 has a front face (not shown) and a back face S1 facing away from each other. One end of the flexible circuit board 20 is connected to the panel assembly 10, and the other end is connected to an electrical connector 21, and at least part of the flexible circuit board 20 and the electrical connector 21 are located on the side of the back surface S1 of the panel assembly 10. The securing structure 30 is capable of securing the electrical connector 21 to the back surface S1 of the panel assembly 10. Wherein the securing structure 30 is at least partially located between the electrical connector 21 and the back side S1 of the panel assembly 10.

It is understood that the display module is an LCD display module.

Accordingly, the panel assembly 10 includes a panel layer (not shown) and a backlight module (not shown), the backlight module is disposed on a back side of the panel layer, and the back surface S1 is a surface of the backlight module facing away from a side of the panel layer.

The flexible circuit board is the FPC circuit board. The electrical connector 21 thereof has a connection terminal or connection PIN (PIN). The connection terminals or connection pins may be disposed toward or away from the panel assembly side when the electrical connector 21 is secured by the securing structure 30.

It should be noted that, the display module 100 is an intermediate component existing before the display module is assembled into a complete machine after the display module including the panel assembly 10 and the flexible circuit board 20 is manufactured. The display assembly including the panel assembly 10 and the flexible circuit board 20 may be a display assembly of an electronic terminal having a display device such as a mobile phone, a computer, a tablet, etc. When the display screen assembly machine including the panel assembly 10 and the flexible circuit board 20 is completed, the fixing structure 30 is removed and the electrical connector 21 of the flexible circuit board 20 may be electrically connected with the main circuit board of the complete machine.

This display module 100, through setting up fixed knot structure 30 to be located at least partly between the back S1 of electric connector 21 and panel subassembly 10 for keep apart the electric connector 21 of flexible circuit board 20 with the back S1 of panel subassembly 10 is favorable to avoiding panel subassembly 10 back S1 to be scratched, thereby guarantee backlight unit and whole display module 100 'S performance, also be favorable to avoiding simultaneously being unfavorable for influence such as follow-up electric connection because of deformation that the interact leads to between electric connector 21 and panel subassembly 10 back S1, be favorable to guaranteeing display module 100' S yield.

As shown in connection with fig. 2-4, in some embodiments, the securing structure 30 includes a spacer structure 31 at least partially between the electrical connector 21 and the back surface S1 of the panel assembly 10, the spacer structure 31 including a first adhesive layer 311 on a side of the panel assembly 10 facing away from the panel assembly 10 and a flexible buffer layer 312 on a side of the first adhesive layer 311 facing away from the panel assembly 10.

The first adhesive layer 311 may be an adhesive layer having an adhesive effect, such as an adhesive layer, such as a double sided adhesive.

The flexible buffer layer may be a flexible material layer formed by foam material, or may be a flexible material layer formed by other materials, which is more beneficial to buffer protection of the electrical connector 21.

It is understood that the flexible buffer layer is a layer of low-tack material or a layer of non-tack material.

Preferably, the flexible buffer layer 312 covers the entire surface of the side of the first adhesive layer 311 facing away from the panel assembly 10, preventing the first adhesive layer from being exposed to adhere dust or other structures.

As shown in fig. 4, when the spacer structure 31 is disposed on the panel assembly 10, the first adhesive layer 311 is adhered to the back surface S1 of the panel assembly 10. The flexible buffer layer 312 is located on the outside facing away from the panel assembly 10, and the electrical connector 21 is located outside the flexible buffer layer 312.

As shown in fig. 2 to 4, in some embodiments, the first adhesive layer 311 includes a first adhesive portion 3111 and a first handling portion 3112 connected to one end of the first adhesive portion 3111, and a first operation layer 313 is attached to a surface of the first handling portion 3112 near the side of the panel assembly 10, and the first operation layer 313 is a non-adhesive film layer.

The first operation layer 313 may have a film structure such as a plastic film or a resin film.

The first handling portion 3112 and the first operating layer 313 are disposed such that, in the display module 100, corresponding portions of the first handling portion 3112, the first operating layer 313 and the flexible buffer layer 312 together form an operating position (i.e. a handle position), so that the spacer structure 31 of the fixing structure 30 is pinched by a machine or an operator when being attached to or removed from the panel assembly 10.

Referring to fig. 5 to 8, in some embodiments, the fixing structure 30 further includes an adhesive fixing structure 32, and the adhesive fixing structure 32 includes a coating region 3202 coated on a side of the electrical connector 21 facing away from the panel assembly 10 and adhesive regions 3203 and 3204 adhered to the spacer structure 31 or the back surface S1 of the panel assembly 10.

As further shown in fig. 5-8, in some embodiments, the adhesive securing structure 32 has a slot 3201 that is open to the side of the panel assembly 10 and mates with the electrical connector 21 to facilitate placement of the electrical connector 21.

Considering that in some embodiments, if the groove depth T of the groove 3201 is too large, the electrical connector 21 is easy to loosen and not firmly fixed, and if the groove depth T of the groove 3201 is too small, a certain compression effect is easily caused on the electrical connector 21, the inventor finds that the groove 3201 is set to: the difference between the groove depth T of the card groove 3201 and the thickness of the electrical connector 21 in this direction is within 0.15mm, which is advantageous in enabling the electrical connector 21 to be more surely provided in the card groove 3201.

Accordingly, considering that in some embodiments, if the width W of the slot 3201 is too large, the electrical connector 21 is easy to loosen and not firmly fixed, and if the width of the slot 3201 is too small, a certain side pressing effect is easily caused on the electrical connector 21, the inventor has found that the slot 3201 is set to: the distance between the side wall of the slot 3201 and the electrical connector 21 is within 0.25mm, which is beneficial to enable the electrical connector 21 to be more surely arranged in the slot 3201.

For example, as shown in fig. 8, the card slot 3201 has opposite side walls b and c, a distance W1 between the side wall b and the electrical connector 21 is within 0.25mm, and a distance W2 between the side wall c and the electrical connector 21 is also within 0.25 mm.

As shown in fig. 5 and 6, in some embodiments, the adhesive fixing structure 32 includes a second adhesive layer 321 facing the side of the panel assembly 10 and a protective layer 322 located on the side of the second adhesive layer 321 facing away from the panel assembly 10, and the grooves 3201 extend through two opposite surfaces of the second adhesive layer 321 in the thickness direction, that is, the grooves 3201 extend through the entire dimension of the second adhesive layer 321 in the thickness direction; wherein the protective layer 322 is a non-adhesive film layer.

The protective layer 322 may be a plastic film layer, a resin film layer (such as a PET material film layer), or the like.

The second adhesive layer 321 may be an adhesive layer having an adhesive effect, such as an adhesive layer, such as a double sided adhesive.

Of course, in other embodiments, the clamping groove may extend through only a portion of the second adhesive layer 321 in the thickness direction.

As shown in fig. 5 and fig. 6, in some embodiments, the second adhesive layer 321 includes a second adhesive portion 3211 and a second handling portion 3212 connected to at least one side of the second adhesive portion 3211, and a second operation layer 323 is attached to a surface of the second handling portion 3212 near one side of the panel assembly 10, where the second operation layer 323 is a non-adhesive film layer.

The second operation layer 323 may have a film structure such as a plastic film layer or a resin film layer.

The second handling portion 3212 and the second operating layer 323 are disposed such that, in the display module 100, the second handling portion 3212, the second operating layer 323 and the corresponding portion of the protective layer 322 together form an operating position (i.e. a handle position), so that the adhesive fixing structure 32 of the fixing structure 30 is pinched by a machine or an operator when being adhered to or removed from the panel assembly 10.

In this application, the terms "first," "second," and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The terms "plurality," "a number" and "a number" refer to two or more, unless otherwise specifically defined.

Other embodiments of the present application 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 application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.

It is to be understood that the present application is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims (10)

1. A display module, comprising:

a panel assembly having a front face and a back face facing away from each other;

a flexible circuit board, one end of which is connected with the panel assembly, and the other end of which is connected with an electric connector, wherein at least part of the flexible circuit board and the electric connector are positioned on one side of the back surface of the panel assembly;

a fixing structure for fixing the electrical connector to the back surface of the panel assembly; wherein the securing structure is at least partially between the electrical connector and the back side of the panel assembly.

2. The display module of claim 1, wherein the securing structure comprises a spacer structure at least partially between the electrical connector and the back side of the panel assembly, the spacer structure comprising a first adhesive layer facing a side of the panel assembly and a flexible buffer layer facing away from the panel assembly at the first adhesive layer.

3. The display module assembly of claim 2, wherein the first adhesive layer includes a first adhesive portion and a first handling portion connected to one end of the first adhesive portion, and a first operation layer is attached to a surface of the first handling portion, which is close to one side of the panel assembly, and the first operation layer is a non-adhesive film layer.

4. A display module according to claim 2 or 3, wherein the fixing structure further comprises a bonding fixing structure comprising a coating region coated on a side of the electrical connector facing away from the panel assembly and a bonding region bonded to the spacer structure or the back surface of the panel assembly.

5. The display module of claim 4, wherein the adhesive securing structure has a slot opening toward a side of the panel assembly and adapted to the electrical connector.

6. The display module of claim 5, wherein a difference between a groove depth T of the card groove and a thickness of the electrical connector is within 0.15 mm.

7. The display module of claim 5, wherein the card slot has opposite sidewalls, and a distance between the sidewalls and the electrical connector is within 0.25 mm.

8. The display module according to claim 5, wherein the adhesive fixing structure includes a second adhesive layer facing the panel assembly side and a protective layer located on a side of the second adhesive layer facing away from the panel assembly, and the clip groove penetrates a part or all of the second adhesive layer in a thickness direction; wherein the protective layer is a non-adhesive film layer.

9. The display module assembly of claim 8, wherein the second adhesive layer includes a second adhesive portion and a second handling portion connected to at least one side of the adhesive portion, a second operation layer is attached to a surface of the second handling portion adjacent to one side of the panel assembly, and the second operation layer is a non-adhesive film layer.

10. The display module of claim 1, wherein the panel assembly comprises a panel layer and a backlight module, the backlight module is disposed on a back side of the panel layer, and the back side is a surface of the backlight module facing away from a side of the panel layer.