CN213424443U - Foldable display module and electronic equipment - Google Patents

Abstract

The utility model provides a collapsible display module assembly and electronic equipment, collapsible display module assembly includes support piece, screen, compensating part and mounting, and compensating part and mounting set up on support piece side by side, and the screen includes adjacent kink and first non-kink, and first non-kink passes through mounting and support piece fixed connection, is provided with the compensating part between kink and the support piece. Through the compensation piece that sets up side by side with the mounting, the compensation piece plays the effect that supports the kink, can alleviate or even eliminate the kink of screen and the section difference between the first non-kink, improves the deformation phenomenon of the kink of screen.

Description

Foldable display module and electronic equipment

Technical Field

The utility model relates to a collapsible display technology field, concretely relates to collapsible display module assembly and electronic equipment.

Background

The conventional foldable display screen is adhered to the support member by the back glue at the non-bending portion and adhered to the support member by the glue at the bending portion. The bending part and the non-bending part have a section difference, and when the screen is bent, the bending part of the screen can cause the screen to form dents and other deformations due to the pulling force of dispensing.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a collapsible display module assembly and electronic equipment solves screen kink and non-kink and has the segment difference, and then arouses the problem of screen deformation.

In a first aspect, the present disclosure provides a foldable display module, including a support, a screen, a compensation part and a fixing part, the compensation part and the fixing part are disposed on the support side by side, the screen includes an adjacent bending part and a first non-bending part, the first non-bending part passes through the fixing part and is fixedly connected to the support, and the compensation part is disposed between the bending part and the support. Through the compensation piece that sets up side by side with the mounting, the compensation piece plays the effect that supports the kink, can alleviate or even eliminate the kink of screen and the section difference between the first non-kink, improves the deformation phenomenon of the kink of screen.

In one embodiment, a surface of the compensation element facing away from the supporting element is a first surface, a surface of the fixing element facing away from the supporting element is a second surface, and when the foldable display module is bent or unfolded, the first surface and the second surface together form a flat curved surface or plane. Set up first surface and second surface and form a smooth plane or curved surface jointly for the laminating is all supported by first non-kink and the kink of screen, and laminating is supported by the second surface to first non-kink promptly, and the kink is supported the laminating by first surface, has eliminated the section difference of first non-kink and kink completely, can avoid the kink of screen to appear the problem of warping completely.

In one embodiment, the foldable display module further includes a damping member, the compensating member has a through hole, the damping member is accommodated in the through hole, and the damping member is connected to the bending portion, so that the bending portion can slide in a tangential direction of the first surface and is fixed in a normal direction of the first surface. Establish the damping piece in order to connect the kink through the through-hole at the compensating part, make the kink slidable upwards in the tangent of first surface, it is fixed in the normal direction of first surface, make collapsible display module assembly when buckling, the kink can slide relative to the compensating part, make the operation of buckling of collapsible display module assembly smooth, no feeling of frustrating immediately, and the damping piece has restricted the displacement of kink in the normal direction of first surface, make kink and first non-kink have no segment difference all the time, avoid producing deformation such as indenture.

In one embodiment, the through hole penetrates through two opposite surfaces of the compensation piece, and the damping piece penetrates through the through hole and is connected with the bending part of the screen and the support piece. When the damping part is connected with the support part, the damping part can adhere and fix the compensation part and the support part, and when the damping part is connected with the bent part, the damping part keeps a viscous flowing state and does not adhere and fix the compensation part and the bent part.

In one embodiment, the damping member is a fluid or a gel, and fills the space of the through hole, so that the damping member can be connected to the bending portion by overflowing to a position flush with the first surface.

In one embodiment, the damping member is made of grease.

In one embodiment, the number of the through holes is multiple, the through holes are distributed on the compensating piece at intervals, and each through hole accommodates the damping piece.

In one embodiment, the number of the through holes is multiple, the through holes extend along an axial direction of a bending axis of the foldable display module, and the multiple through holes are arranged along a direction perpendicular to the axial direction of the bending axis of the foldable display module.

In one embodiment, the supporting member is a flat plate, and the thickness of the fixing member is the same as that of the compensating member; or the supporting piece is in a folded plate shape, and the thicknesses of the fixing piece and the compensating piece are different.

In a second aspect, the present disclosure provides an electronic device, including a first housing, a second housing, a bending mechanism connecting the first housing and the second housing, and the foldable display module according to any one of the various embodiments of the first aspect of the present disclosure, wherein the screen of the foldable display module further includes a second non-bending portion, the bending portion is connected to the first non-bending portion and the second non-bending portion, the first housing and the second housing respectively support the first non-bending portion and the second non-bending portion, and the bending mechanism supports the bending portion. Through adopting the collapsible display module that this disclosure provided, collapsible display module is through setting up the compensator side by side with the mounting, and the compensator plays the effect that supports the kink, can alleviate or even eliminate the kink of screen and the section difference between the first non-kink, improves the deformation phenomenon of the kink of screen.

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 description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is an exploded view of a foldable display module according to the prior art.

Fig. 2 is a schematic cross-sectional structure diagram of a foldable display module in the prior art.

Fig. 3 is an exploded view of an embodiment of a foldable display module.

FIG. 4 is a schematic cross-sectional view illustrating an embodiment of a foldable display module when unfolded.

FIG. 5 is a schematic structural diagram of a compensator according to an embodiment.

Fig. 6 is a schematic structural view of a compensator according to another embodiment.

FIG. 7 is a schematic view of the structure of the compensating member and the damping member of one embodiment.

FIG. 8 is a schematic view of the structure of a compensator and a damper according to another embodiment.

FIG. 9 is a schematic cross-sectional view illustrating a folded foldable display module according to an embodiment.

Detailed Description

Technical solutions in embodiments of the present disclosure will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present disclosure, and it is apparent that the described embodiments are only some embodiments of the present disclosure, not all embodiments. All other embodiments, which can be derived by one of ordinary skill in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.

Referring to fig. 1 and 2, fig. 1 is an exploded view of a foldable display module according to the prior art, and fig. 2 is a cross-sectional view of the foldable display module according to the prior art. In the prior art, the foldable display module comprises a support 10, a fixing member 20 and a screen 30.

The screen 30 includes a first non-bending part a1, a bending part B, and a second non-bending part a2 connected in sequence, the first non-bending part a1 and the second non-bending part a2 of the screen 30 are not bent normally, and in some embodiments, the first non-bending part a1 and the second non-bending part a2 may be configured to be bendable. The bending portion B is used for bending to make the screen 30 assume various forms such as unfolding, bending, folding, and the like, so as to meet different display requirements. The screen 30 may be specifically an OLED screen, having flexibility.

To stably support the screen 30, the fixing member 20 is disposed between the support member 10 and the first non-bent portion a1 of the screen 30 for fixedly connecting the support member 10 and the first non-bent portion a1 of the screen 30. Alternatively, the support member 10 is pleated steel, and the support member 10 has a thin thickness, has sufficient structural strength, and can be bent. Optionally, the fixing member 20 is a back adhesive, and the fixing member 20 is adhered to the supporting member 10 and the first non-bending portion a1 of the screen 30. Alternatively, the supporting member 10 and the fixing member 20 may have other structures, which are not limited to the above.

In this embodiment, the bending portion B of the screen 30 is fixed to the supporting member 10 by the adhesive 25. Since the fixing element 20 is disposed between the first non-bent portion a1 and the support 10, and the glue 25 between the bent portion B and the support 10 is in a dot shape, it can only be connected to a part of the bent portion B, and cannot completely cover the bent portion B, so that there is a step difference between the first non-bent portion a1 and the bent portion B. In addition, when the foldable display module is bent, the bending portion B of the screen 30 may deform the screen 30 due to the pulling force of the dispensing device 25.

Based on the above problems occurring in the prior art, the following embodiments are provided to solve the problems.

Referring to fig. 3, fig. 4 and fig. 9, fig. 3 is an exploded view of a foldable display module according to an embodiment, fig. 4 is a sectional view of the foldable display module according to the embodiment when unfolded, and fig. 9 is a sectional view of the foldable display module according to the embodiment after being folded.

The embodiment of the present disclosure provides a foldable display module, which includes a support 10, a screen 30 and a fixing member 20, wherein the screen 30 includes a bending portion B and a first non-bending portion a1, which are adjacent to each other, and the first non-bending portion a1 is fixedly connected to the support 10 through the fixing member 20.

The screen 30 is a flexible display screen, a flexible touch screen, a flexible display touch screen, or the like.

The supporting member 10 is a plate made of metal, alloy, or liquid metal, and has a certain elasticity, and the thickness of the supporting member 10 is thin, and the supporting member has sufficient structural strength and can be bent.

The fixing member 20 is a layer made of double-sided adhesive tape, back adhesive tape or other materials with adhesive function.

Optionally, the screen 30 further includes a second non-bent portion a2, and the first non-bent portion a1 and the second non-bent portion a2 are connected at both sides of the bent portion B. Note that the second non-bent portion a2 in fig. 2 is not limited to the size shown in the figure, and the size of the second non-bent portion a2 may be greater than, less than or equal to the size of the first non-bent portion a 1. It is understood that the foldable display module may include a plurality of second non-bending parts a2, the bending part B being connected between the first non-bending part a1 and the second non-bending part a2 or between adjacent second non-bending parts a 2.

The foldable display module of the present embodiment further includes a compensator 40 disposed between the bending portion B of the screen 30 and the support 10.

Specifically, the compensating part 40 and the fixing part 20 are arranged side by side on the support 10, and the compensating part 40 connects the bending part B and the support 10. The compensation element 40 is made of flexible material and can be bent synchronously with the bending portion B and the support element 10 at the corresponding position. Wherein the compensating member 40 and the fixing member 20 are arranged side by side on the support member 10, meaning that the compensating member 40 and the fixing member 20 are arranged at the same layer. In the present embodiment, the projections of the compensation member 40 and the fixing member 20 in the normal direction of the display surface of the screen 30 do not overlap. In other embodiments, the projections of the compensating member 40 and the fixing member 20 in the normal direction of the display surface of the screen 30 are completely overlapped or partially overlapped.

In the present embodiment, by providing the compensator 40 in parallel with the fixing member 20, the compensator 40 plays a role of supporting the bending portion B, so that a step difference between the bending portion B of the screen 30 and the first non-bending portion a1 can be reduced or even eliminated, and a deformation phenomenon of the bending portion B of the screen 30 can be improved.

Referring to fig. 4 and 9, a surface of the compensating element 40 facing away from the supporting element 10 is a first surface 42, and a surface of the fixing element 20 facing away from the supporting element 10 is a second surface 21. Referring to fig. 4, when the foldable display module is unfolded, the first surface 42 and the second surface 21 form a flat plane together, i.e. the first surface 42 and the second surface 21 are flush and coplanar. Referring to fig. 9, when the foldable display module is bent, the first surface 42 and the second surface 21 form a flat curved surface together, that is, the second surface 21 is substantially a plane, the first surface 42 is an arc surface, and a tangent of one end of the first surface 42 close to the second surface 21 is flush with the second surface 21. The first surface 42 and the second surface 21 are configured to form a flat plane or a curved surface together, so that the first non-bending portion a1 and the bending portion B of the screen 30 are supported and attached, that is, the first non-bending portion a1 is supported and attached by the second surface 21, and the bending portion B is supported and attached by the first surface 42, thereby completely eliminating the segment difference between the first non-bending portion a1 and the bending portion B, and completely avoiding the problem of deformation of the bending portion B of the screen 30.

In an embodiment, please refer to fig. 3 to 6, fig. 5 is a schematic structural diagram of a compensator according to an embodiment, and fig. 6 is a schematic structural diagram of a compensator according to another embodiment. The compensating member 40 is opened with a through hole 41. Referring to fig. 7 and 8, fig. 7 is a schematic structural view of a compensating member and a damping member according to an embodiment, and fig. 8 is a schematic structural view of a compensating member and a damping member according to another embodiment. The foldable display module further comprises a damping member 50, and the damping member 50 is accommodated in the through hole 41. Referring to fig. 4 and 9, the damping member 50 is connected to the bending portion B, and the bending portion B is slidable along a tangential direction of the first surface 42 and fixed in a normal direction of the first surface 42.

In other words, the damping member 50 is accommodated in the through hole 41 and fills the space of the through hole 41, such that the damping member 50 is connected to the bending portion B at the first surface 42. Alternatively, the compensation element 40 has no adhesive force acting on the bent portion B, and the damping element 50 has an adhesive force acting on the bent portion B, but the damping element 50 does not adhesively fix the bent portion B to the compensation element 40, but the damping element 50 maintains a flowing state, so that the bent portion B can relatively slide on the first surface 42 relative to the compensation element 40, that is, the bent portion B can slide in the tangential direction of the first surface 42, but the bent portion B cannot move in a direction away from the compensation element 40, that is, cannot move in the tangential direction of the first surface 42. This principle is similar to placing a mirror on the water surface, where it is easier to move, but if the mirror is taken up from the water surface, a larger pulling force is required.

It is understood that the damping member 50 may not completely fill the through hole 41, and a space may be reserved in the through hole 41 for the damping member 50 to slide in the through hole 41.

Therefore, in the present embodiment, the damping member 50 is disposed in the through hole 41 of the compensation member 40 to connect the bending portion B, so that the bending portion B is slidable in the tangential direction of the first surface 42 and fixed in the normal direction of the first surface 42, so that the bending portion B can slide relative to the compensation member 40 when the foldable display module is bent, and the bending operation of the foldable display module is smooth without pause and frustration, and the damping member 50 limits the displacement of the bending portion B in the normal direction of the first surface 42, so that there is no step difference between the bending portion B and the first non-bending portion a1, thereby avoiding the generation of deformation such as dents.

Referring to fig. 4 and 9, in an embodiment, the through hole 41 penetrates through two opposite surfaces of the compensating element 40, and the damping element 50 penetrates through the through hole 41 and connects the bending portion B of the screen 30 and the supporting element 10. The damper 50 connects the support 10 and the bent portion B of the screen 30 such that the bent portion B is slidable in a tangential direction of the first surface 42, and fixed in a normal direction of the first surface 42; and such that the support 10 is slidable in a tangential direction of the first surface 42, being fixed in a normal direction of the first surface 42.

In another embodiment, the first surface 42 of the compensating element 40 may be provided with a groove (not shown) that does not extend through the surface of the compensating element 40 that is connected to the supporting element 10, and the damping element 50 is accommodated in the groove. The damper 50 connects the compensator 40 and the bent portion B of the screen 30 such that the bent portion B of the screen 30 is slidable with respect to the compensator 40 in a tangential direction of the first surface 42 and fixed in a normal direction of the first surface 42. Preferably, the compensation element 40 is fixedly connected to the opposite side of the support element 10.

The damping member 50 of the present embodiment is fluid or gel, and fills up the space of the through hole 41, so that the damping member 50 can be connected to the bending portion B at a position flush with the first surface 42.

The damping member 50 of the present embodiment is made of grease. Specifically, the damping member 50 may be damping grease, which is refined by a special process by using special polymer base oil and a high-purity thickener and adding additives such as rust prevention, water prevention, corrosion resistance and the like, and is a high-resistance lubricating grease widely used. The damping grease has excellent resistance stability and buffering performance, so that the components can move smoothly and accurately. In other embodiments, the damping member 50 may be other types of grease.

In an embodiment, referring to fig. 3 to 6, the number of the through holes 41 formed on the compensating element 40 is plural, and the plural through holes 41 are distributed on the compensating element 40 at intervals. Alternatively, the plurality of through holes 41 may be distributed in a rectangular array, a circular array, a periodic arrangement, etc. so that the plurality of through holes 41 are uniformly distributed on the compensating member 40. Referring to fig. 7 and 8, each through hole 41 accommodates a damper 50.

Alternatively, the shape of the through-hole 41 may be circular, polygonal, or the like. As shown in fig. 3 and 5, the through hole 41 may be a short rectangular hole, and as shown in fig. 6, the through hole 41 may be a long rectangular hole, which may also be referred to as an elongated through groove.

In an embodiment, referring to fig. 3 to fig. 6 and fig. 9, the number of the through holes 41 is multiple, the through holes 41 extend along an axial direction of a bending axis of the foldable display module, and the through holes 41 are arranged along a direction perpendicular to the axial direction of the bending axis of the foldable display module.

Specifically, as shown in fig. 9, the axial direction of the bending axis of the foldable display module is a direction passing through the bending center of the bending portion B and perpendicular to the paper surface. Referring to fig. 3 to 9, the through holes 41 extend along the axial direction of the bending axis of the foldable display module, and the through holes 41 are arranged along the direction perpendicular to the axial direction of the bending axis of the foldable display module, so that the shapes and the distributions of the through holes 41 on the two sides of the bending axis of the foldable display module are symmetrical, and the stress on each position of the screen 30 is substantially symmetrical along the bending axis when the foldable display module is bent, thereby preventing the screen 30 from being distorted and other deformations which may be generated by the screen 30 due to the uneven stress on each position.

In one embodiment, referring to fig. 4, the supporting member 10 is a flat plate, the thickness of the fixing member 20 is the same as that of the compensating member 40, and the supporting member 10 is easy to manufacture.

In another embodiment, referring to fig. 2, the support member 10 is also folded, that is, the position of the support member 10 corresponding to the first non-bending portion a1 is farther from the screen 30, and the position of the support member 10 corresponding to the bending portion B is closer to the screen 30, so as to facilitate dispensing 25. In the embodiment, after the compensation element 40 is improved and added, although the dispensing 25 is not used, the existing supporting element 10 may be used, at this time, the thicknesses of the fixing element 20 and the compensation element 40 are different, at this time, the thickness of the fixing element 20 is greater than that of the compensation element 40, and referring to fig. 2, a thinner compensation element 40 may be disposed at the gap between the supporting element 10 and the bending portion B. Thus, the existing supporting member 10 can be recycled, and waste is avoided. In addition, in some electronic devices, the supporting member 10 needs to be set to have other special shapes in consideration of the arrangement of other components, and according to this principle, the purpose of forming a flat plane or a curved surface on the first surface 42 and the second surface 21 can be achieved by adjusting the thicknesses of the fixing member 20 and the compensating member 40.

In the above embodiment, the first non-bent portion a1 is connected to the supporting member 10 through the fixing member 20, and the bent portion B is connected to the supporting member 10 through the compensating member 40, in other embodiments, the length of the supporting member 10 is longer, so that the second non-bent portion a2 can also have a fixing member 20 connected to the supporting member 10.

Referring to fig. 1 to 9, an embodiment of the present disclosure further provides an electronic device including a first housing (not shown), a second housing (not shown), a bendable mechanism (not shown) connecting the first housing and the second housing, and the foldable display module in the foregoing embodiment. The screen 30 of the foldable display module further includes a second non-bending portion a2, the bending portion B connects the first non-bending portion a1 and the second non-bending portion a2, the first housing and the second housing respectively support the first non-bending portion a1 and the second non-bending portion a2, and the bending mechanism supports the bending portion B.

Specifically, the electronic device may be a smart phone, a tablet computer, or the like. The first shell and the second shell can be two middle frames of the electronic device, the bending mechanism is used for realizing bending operation of the first middle frame and the second middle frame, namely the first shell and the second shell are pulled off, and the first shell and the second shell rotate around the bending mechanism to realize bending and unfolding of the first shell and the second shell. The first and second housings support the first non-bending part a1 and the second non-bending part a2, respectively, the bending mechanism supports the bending part B, in other words, the first housing supports the support 10 at the first non-bending part a1, the bending mechanism supports the support 10 at the bending part B, and the second housing supports the second non-bending part a2, so that the foldable display module is stably supported. Alternatively, the support 10 may be disposed between the second non-bent portion a2 and the second shell, that is, the support 10 is long enough to cover the first non-bent portion a1, the bent portion B and the second non-bent portion a 2. By adopting the foldable display module disclosed and provided by the embodiment, the foldable display module is provided with the compensator 40 which is arranged side by side with the fixing member 20, and the compensator 40 plays a role of supporting the bending part B, so that the section difference between the bending part B of the screen 30 and the first non-bending part a1 can be reduced or even eliminated, and the deformation phenomenon of the bending part B of the screen 30 is improved.

While the present disclosure has been described with reference to a few embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure.

Claims (10)

1. The foldable display module is characterized by comprising a support piece, a screen, a compensation piece and a fixing piece, wherein the compensation piece and the fixing piece are arranged on the support piece side by side, the screen comprises an adjacent bending part and a first non-bending part, the first non-bending part passes through the fixing piece and is fixedly connected with the support piece, and the compensation piece is arranged between the bending part and the support piece.

2. The foldable display module of claim 1, wherein the surface of the compensation element facing away from the supporting element is a first surface, the surface of the fixing element facing away from the supporting element is a second surface, and when the foldable display module is folded or unfolded, the first surface and the second surface form a flat curved surface or plane.

3. The foldable display module of claim 2, further comprising a damping member, wherein the compensating member has a through hole, the damping member is received in the through hole, and the damping member is connected to the bending portion, such that the bending portion is slidable along a tangential direction of the first surface and fixed in a normal direction of the first surface.

4. The foldable display module of claim 3, wherein the through hole penetrates through two opposite surfaces of the compensation element, and the damping element penetrates through the through hole and connects the bending portion of the screen and the support element.

5. The foldable display module of claim 3, wherein the damping member is a fluid or gel and fills the space of the through hole.

6. The foldable display module of claim 5, wherein the damping member is made of grease.

7. The foldable display module of claim 3, wherein the number of through holes is plural, and a plurality of through holes are distributed on the compensator at intervals, and each through hole accommodates the damping member.

8. The foldable display module of claim 3, wherein the number of the through holes is plural, the through holes extend along an axial direction of a bending axis of the foldable display module, and the plural through holes are arranged in a direction perpendicular to the axial direction of the bending axis of the foldable display module.

9. The foldable display module of claim 2, wherein the support member is flat, and the thickness of the fixing member is the same as that of the compensation member; or the supporting piece is in a folded plate shape, and the thicknesses of the fixing piece and the compensating piece are different.

10. An electronic device, comprising a first housing, a second housing, a foldable mechanism connecting the first housing and the second housing, and the foldable display module according to any one of claims 1 to 9, wherein the screen of the foldable display module further comprises a second non-bending portion, the bending portion is connected to the first non-bending portion and the second non-bending portion, the first housing and the second housing respectively support the first non-bending portion and the second non-bending portion, and the bending mechanism supports the bending portion.

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