CN115472089A - Supporting structure and display device - Google Patents

Abstract

The invention discloses a supporting structure and a display device. The supporting structure is attached to the non-light-emitting side of the display panel and comprises a first supporting area, the display panel comprises a bending area, and the first supporting area is used for being attached to the bending area; the supporting structure also comprises a supporting layer, a first protective layer, a release layer and a bonding layer, wherein the first protective layer and the release layer are respectively positioned on two sides of the supporting layer and are respectively bonded with the supporting layer through the bonding layer; the adhesive force of leaving type layer and supporting layer is less than the adhesive force of first protective layer and supporting layer, and just along first direction, the setting of staggering of tie coat and first supporting area. Through the scheme, the stripping difficulty of the release layer in the supporting structure is low, and the problem of reverse stripping of the release layer is avoided; in addition, after the supporting structure is bent, the bonding layer can be directly attached to the display panel through the bonding layer, double-sided adhesive tapes do not need to be additionally arranged for bonding, the attaching process is simplified, and the influence on the display panel during pressing of the double-sided adhesive tapes can be avoided.

Description

Supporting structure and display device

Technical Field

The embodiment of the invention relates to the technical field of display, in particular to a supporting structure and a display device.

Background

After the display panel is manufactured, the display panel is attached to the supporting structure to manufacture the display device. In the prior art, the support structure is generally attached to the display panel by a double-sided adhesive tape. However, in the process of bonding by using the double-sided adhesive tape, on one hand, the adhesive overflow phenomenon may occur, and the bonding effect is influenced; on the other hand, when the double-sided tape is attached to the display panel, pressing is needed, and the display panel is possibly damaged in the pressing process.

Disclosure of Invention

In view of the above, the present invention provides a supporting structure and a display device, so as to simplify a bonding process between the supporting structure and a display panel and prevent the supporting structure from damaging the display panel when the supporting structure is bonded to the display panel.

In a first aspect, an embodiment of the present invention provides a support structure, where the support structure is configured to be attached to a non-light-emitting side of a display panel;

the support structure comprises a first support area, the display panel comprises a bending area, and the first support area is used for being attached to the bending area;

the supporting structure further comprises a supporting layer, a first protective layer, a release layer and a bonding layer, wherein the first protective layer and the release layer are respectively positioned on two sides of the supporting layer and are respectively bonded with the supporting layer through the bonding layer;

the adhesive force between the release layer and the supporting layer is smaller than that between the first protective layer and the supporting layer, and the adhesive layer and the first supporting area are arranged in a staggered mode along a first direction; the first direction is parallel to the direction of the supporting layer pointing to the release layer.

In a second aspect, an embodiment of the present invention further provides a display device, including the support structure according to the first aspect of the present invention;

the display device further comprises a display panel, the display panel comprises a bending area, and the support structure comprises a first support area; the first supporting area is attached to the bending area;

the supporting structure comprises a supporting layer and a bonding layer, and the bonding layer and the bending area are arranged in a staggered mode.

In the embodiment of the invention, the supporting structure is attached to the non-light-emitting side of the display panel, wherein the supporting structure comprises a first supporting area, the display panel comprises a bending area, and the first supporting area is used for being attached to the bending area; the supporting structure also comprises a supporting layer, a first protective layer, a release layer and a bonding layer, wherein the first protective layer and the release layer are respectively positioned on two sides of the supporting layer and are respectively bonded with the supporting layer through the bonding layer; the adhesion force between the release layer and the supporting layer is smaller than that between the first protective layer and the supporting layer, and the bonding layer and the first supporting area are arranged in a staggered manner along the first direction; the first direction is parallel to the direction of the supporting layer pointing to the release layer. Through above-mentioned technical scheme, the degree of difficulty of peeling off from the type layer is less among the bearing structure, peeling off the first protection layer of bearing structure both sides and when leaving the type layer, can break away from with bearing structure earlier from the type layer, and first protection layer still remains on bearing structure, avoids appearing the problem of leaving type layer reverse type. In addition, after the supporting structure is bent, the supporting structure can be directly attached to the back of the display panel through the firm bonding layer, a double-sided tape does not need to be additionally arranged, and the double-sided tape, the supporting structure and the display panel are not needed to be pressed together, so that the laminating process of the supporting structure and the display panel is simplified, and the influence of the pressing process in the prior art on the display panel is avoided.

Drawings

Fig. 1 is a schematic structural diagram of a supporting structure according to an embodiment of the present invention;

FIG. 2 is a schematic diagram illustrating a relative position relationship between a supporting structure and a display panel according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of another support structure provided in accordance with an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a display device according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of another display device according to an embodiment of the invention;

FIG. 6 is an enlarged view of FIG. 5 at Z;

fig. 7 is a flowchart of a display device attaching method according to an embodiment of the present invention;

fig. 8 is a schematic view of the bonding method of fig. 7.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

The supporting structure in the prior art only comprises a supporting part, a protecting part and a release film, and when the supporting structure is attached to the display panel, one side of the supporting part, which is close to the release film, is attached to the non-light-emitting side of the display panel after the release film is torn off. Then tearing off the protection part, arranging a double-sided adhesive tape on the surface of one side of the support part close to the protection part, and pressing the double-sided adhesive tape and the support part; and after lamination, bending the supporting part to the back of the display panel, and adhering the supporting part to the back of the display panel by using a double-sided adhesive tape. In order to ensure the adhesion effect, the supporting part and the display panel are pressed together by a pressing process. When the display device is manufactured by adopting the supporting structure in the prior art, the supporting structure needs to be pressed in the step area of the display panel for multiple times, the process flow is complicated, and the display panel is easily damaged in the pressing process. In view of this, the inventor proposes a technical solution in the present application.

The application provides a bearing structure for the laminating sets up in display panel's non-light-emitting side, and bearing structure includes: the display panel comprises a bending area, and the first supporting area is used for being attached to the bending area; the supporting structure also comprises a supporting layer, a first protective layer, a release layer and a bonding layer, wherein the first protective layer and the release layer are respectively positioned on two sides of the supporting layer and are respectively bonded with the supporting layer through the bonding layer; the adhesion force between the release layer and the supporting layer is smaller than that between the first protective layer and the supporting layer, and the bonding layer and the first supporting area are arranged in a staggered manner along the first direction; the first direction is parallel to the direction of the support layer pointing to the release layer.

Adopt the technical scheme in this application, the degree of difficulty of peeling off from the type layer is less among the bearing structure, at the first protection layer of peeling off the bearing structure both sides with from the type layer time, can break away from with bearing structure earlier from the type layer, first protection layer still remains on bearing structure, avoids appearing the anti-problem from the type of type from the type layer. In addition, because the adhesive layer has viscidity, after the supporting structure is bent, the supporting structure can be directly and firmly attached to the back of the display panel, a double-sided adhesive tape does not need to be additionally arranged, and the double-sided adhesive tape, the supporting structure and the display panel are not needed to be pressed, so that the laminating process of the supporting structure and the display panel is simplified, and the influence of the pressing process in the prior art on the display panel is avoided.

The above is the core idea of the present invention, and the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention. All other embodiments, which can be obtained by a person skilled in the art based on the embodiments of the present invention without any creative work, belong to the protection scope of the present invention.

An embodiment of the present invention provides a supporting structure, configured to be attached to a non-light-emitting side of a display panel, where fig. 1 is a schematic structural diagram of the supporting structure provided in an embodiment of the present invention, and fig. 2 is a schematic diagram of a relative position relationship between the supporting structure and the display panel provided in an embodiment of the present invention. Referring to fig. 1 and 2, the support structure 1 comprises: the display panel 2 comprises a first support area 10 and a second support area 10, wherein the first support area 10 is used for being attached to the bending area 20; the supporting structure 1 further comprises a supporting layer 11, a first protective layer 12, a release layer 13 and an adhesive layer 14, wherein the first protective layer 12 and the release layer 13 are respectively located on two sides of the supporting layer 11 and are respectively bonded with the supporting layer 11 through the adhesive layer 14; the adhesion force between the release layer 13 and the supporting layer 11 is smaller than that between the first protective layer 12 and the supporting layer 11, and the adhesive layer 14 and the first supporting area 10 are arranged in a staggered manner along the first direction X; the first direction X is parallel to the direction in which the support layer 11 points to the release layer 13.

Specifically, the supporting structure 1 that this application provided laminates in display panel 2's non-light-emitting side to preparation display device, display panel 2 be flexible display panel, and display panel 2 includes bending zone 20, and with the help of bending zone 20, display panel 2 is used for binding the district of binding of devices such as flexible circuit board and can buckle to display panel 2's non-light-emitting side promptly display panel 2's the back. As shown in fig. 1 and 2, the support structure 1 includes: the first supporting region 10, the first supporting region 10 corresponds to the bending region 20 of the display panel 2, and in the process of attaching to the display panel 2, the first supporting region 10 of the supporting structure 1 is attached to the bending region 20 of the display panel 2.

Wherein, bearing structure 1 still includes supporting layer 11, first protective layer 12, leaves type layer 13 and tie coat 14, and supporting layer 11 is used for guaranteeing whole bearing structure 1's intensity, avoids bearing structure 1 to warp, and supporting layer 11's both sides all are provided with tie coat 14, and the tie coat 14 of both sides is used for bonding first protective layer 12 respectively and leaves type layer 13. It is also understood that the support structure 1 comprises a release layer 13, an adhesive layer 14, a support layer 11, an adhesive layer 14 and a first protective layer 12, which are arranged in a stack. Be close to the one side of laminating with display panel 2 from type layer 13 and be display panel 2's non-light-emitting side, first protective layer 12 sets up the one side of keeping away from display panel 2 at bearing structure 1 for protection bearing structure 1 prevents that bearing structure 1 from taking place the damage when transporting or attached to display panel 2. It should be noted that, in order to clearly illustrate the structure of the support structure 1, the thicknesses of the film layers in the support structure 1 are enlarged in fig. 2, and the sizes of the film layers illustrated in fig. 1 do not represent actual setting sizes.

In addition, in the present application, it is further provided that the adhesion between the release layer 13 and the supporting layer 11 is smaller than the adhesion between the first protective layer 12 and the supporting layer 11, in other words, the adhesive strength between the release layer 13 and the supporting layer 11 is smaller than the adhesive strength between the first protective layer 12 and the supporting layer 11. It can be understood that, when the supporting structure 1 is attached to the display panel 2, the release layer 13 is firstly torn off, the supporting layer 11 is attached to the non-light-emitting side of the display panel 2 through the adhesive layer 14 on the side of the supporting structure 1 close to the release layer 13, and the first supporting region 10 of the supporting structure 1 corresponds to the bending region 20 of the display panel 2; then the first protection layer 12 is peeled off, the bonding area of the display panel 2 and the support layer 11 in the corresponding area are bent to the back side of the display panel 2, and then the support layer 11 bent to the back side is fixed with the display panel 2 through the adhesive layer 14 on the side of the support structure 1 close to the first protection layer 12. The setting is less than the adhesive force of first protective layer 12 and supporting layer 11 from the adhesive force between type layer 13 and supporting layer 11, and the degree of difficulty of peeling off from type layer 13 is less, at the first protective layer 12 of peeling off the both sides of supporting layer 11 with from type layer 13 time, can break away from with bearing structure 1 earlier from type layer 13, first protective layer 12 still remains on bearing structure 1, avoids appearing the problem of type from the layer reversal type.

In addition, it should be noted that in the present application, after the first protection layer 12 is peeled off and the display panel 2 and the supporting layer 11 are bent to the back of the display panel 2, the area of the supporting structure 1 opposite to the bonding area is directly bonded to the back of the display panel 2 through the bonding layer 14 of the supporting structure 1. Because the bonding layer 14 has viscosity, the supporting structure 1 can be directly and firmly attached to the back of the display panel 2 after being bent, a double-sided tape does not need to be additionally arranged, and the double-sided tape, the supporting structure 1 and the display panel 2 do not need to be pressed, so that the laminating process of the supporting structure 1 and the display panel 2 is simplified, and the influence of the pressing process in the prior art on the display panel 2 is also avoided.

With continued reference to fig. 1 and 2, defining a direction parallel to the supporting layer 11 and pointing to the release layer 13 as a first direction X, in the embodiment of the present invention, the adhesive layer 14 is disposed to be offset from the first supporting region 10. No support layer 11 and no adhesive layer 14 are provided at the first support zone 10 of the support structure 1. Under this kind of mode of arrangement, support layer 11 and tie coat 14 are not set up in the position department that corresponds display panel 2 bending zone 20 in support structure 1, are favorable to improving support structure 1's the performance of buckling, also can reduce support structure 1's material simultaneously, reduce support structure 1's the cost of setting.

The embodiment of the present invention does not limit the specific material of the adhesive layer, and those skilled in the art can select the material according to actual requirements, and in a possible embodiment, the adhesive layer may be a pressure-sensitive adhesive, but is not limited thereto.

In the embodiment of the invention, the supporting structure is attached to the non-light-emitting side of the display panel, wherein the supporting structure comprises a first supporting area, the display panel comprises a bending area, and the first supporting area is used for being attached to the bending area; the supporting structure also comprises a supporting layer, a first protective layer, a release layer and a bonding layer, wherein the first protective layer and the release layer are respectively positioned on two sides of the supporting layer and are respectively bonded with the supporting layer through the bonding layer; the adhesion force between the release layer and the supporting layer is smaller than that between the first protective layer and the supporting layer, and the bonding layer and the first supporting area are arranged in a staggered manner along the first direction; the first direction is parallel to the direction of the support layer pointing to the release layer. Through above-mentioned technical scheme, the degree of difficulty of peeling off from the type layer is less, peeling off the first protection layer of bearing structure both sides and when from the type layer, can break away from with bearing structure earlier from the type layer, and first protection layer still remains on bearing structure, avoids appearing the problem of type layer reverse release type. In addition, after the supporting structure is bent, the supporting structure can be directly attached to the back of the display panel through the firm bonding layer, a double-sided tape does not need to be additionally arranged, and the double-sided tape, the supporting structure and the display panel are not needed to be pressed together, so that the laminating process of the supporting structure and the display panel is simplified, and the influence of the pressing process in the prior art on the display panel is avoided.

Alternatively, and still referring to fig. 1, in a possible embodiment, the adhesive layer 14 includes a first adhesive layer 141 disposed between the first protective layer 12 and the supporting layer 11 and a second adhesive layer 142 disposed between the release layer 13 and the supporting layer 11; the adhesiveness of the first adhesive layer 141 is greater than that of the second adhesive layer 142, and the first adhesive layer 141 and the second adhesive layer 142 are disposed in a staggered manner from the first support region 10 along the first direction X.

Specifically, as shown in fig. 1, the adhesive layer 14 may be divided into a first adhesive layer 141 between the first protective layer 12 and the supporting layer 11, and a second adhesive layer 142 between the supporting layer 11 and the release layer 13. In this embodiment, the adhesiveness of the first adhesive layer 141 may be set to be greater than that of the second adhesive layer 142, and when the adhesiveness of the second adhesive layer 142 is smaller than that of the first adhesive layer 141, the adhesion of the release layer 13 to the supporting layer 11 may be smaller than that of the first protective layer 12 to the supporting layer 11.

Further, in this embodiment, first tie coat 141 and second tie coat 142 all stagger the setting with first support area 10, and first support area 10 department only sets up first protective layer 12, can guarantee to tear off from type layer 13 after, and bearing structure 1 and display panel 2 are accurate to be laminated, avoid the dislocation phenomenon to take place, can also promote bearing structure 1's the performance of buckling.

In this embodiment, a material with a relatively large viscosity may be directly selected to form the first adhesive layer 141, and a material with a relatively small viscosity may be selected to form the second adhesive layer 142, so that the relative viscosity of the first adhesive layer 141 and the second adhesive layer 142 may be adjusted to make the adhesion between the first protective layer 12 and the supporting layer 11 greater than the adhesion between the release layer 13 and the supporting layer 11.

Alternatively, and still referring to fig. 1 and 2, in a possible embodiment, the support structure 1 may further comprise a second support zone 15 and a third support zone 16, the first support zone 10 being located between the second support zone 15 and the third support zone 16; the display panel 2 further includes a display area 21 and a binding area 22, and the bending area 20 is located between the display area 21 and the binding area 22; the second support area 15 is used for being attached to the display area 21, and the third support area 16 is used for being attached to the binding area 22; the supporting layer 11 comprises a first support subsection 111 at the second support area 15 and a second support subsection 112 at the third support area 16, the first adhesive layer 141 comprises a first adhesive subsection 143 at the second support area 15 and a second adhesive subsection 144 at the third support area 16; wherein the adhesion between the first adhesion subsection 143 and the first support subsection 111 is smaller than the adhesion between the first adhesion subsection 143 and the first protection layer 12.

Specifically, as shown in fig. 1 and 2, in the present embodiment, the support structure 1 further includes a second support region 15 and a third support region 16, and the first support region 10 is located between the second support region 15 and the third support region 16 along the second direction Y shown in the drawing. The display panel 2 includes a display area 21 and a binding area 22, where in the above embodiment, the binding area 22 of the display panel 2 is used for binding devices such as a flexible circuit board and bending to the back of the display panel 2 through the bending area 20, and the display area 21 is used for displaying pictures. Along the second direction Y, the bending region 20 is located between the display region 21 and the binding region 22, the second support region 15 of the support structure 1 is relatively attached to the display region 21 of the display panel 2, the third support region 16 of the support structure 1 is relatively attached to the binding region 22 of the display panel 2, and the support layer 11 in the third support region 16 and the binding region 22 are bent together to the back of the display panel 2.

Further, still referring to fig. 1, the supporting layer 11 may be divided into a first supporting subsection 111 and a second supporting subsection 112, the first supporting subsection 111 is located in the second supporting area 15, i.e. the first supporting subsection 11 is correspondingly attached to the display area 21 of the display panel 2; the second support subsection 112 is located at the third support area 16, i.e. the second support subsection 112 is attached to the binding area 22 of the display panel 2 correspondingly. Accordingly, the first adhesive layer 141 may be divided into a first adhesive subsection 143 and a second adhesive subsection 144, the first adhesive subsection 143 being located at the second support area 15 for adhering the first support subsection 111 with the first protective layer 12, the second adhesive subsection 144 being located at the third support area 16 for adhering the second support subsection 112 with the first protective layer 12.

It is worth mentioning that in the present embodiment, the adhesion between the first bonding subsection 143 and the first support subsection 111 is set to be smaller than the adhesion between the first bonding subsection 143 and the first protective layer 12, that is, the bonding strength of the first bonding subsection 143 and the first protective layer 12 and the first support subsection 111 bonded to both sides thereof is different, and the bonding strength between the first bonding subsection 143 and the first support subsection 111 is smaller. It can be understood that when the support structure 1 is attached to the display panel 2, if the adhesion force of the first adhesion subsection 143 to the first support subsection 111 is greater than the adhesion force of the first adhesion subsection 143 to the first protection layer 12, the first adhesion subsection 143 still remains on the surface of the first support subsection 111 when the first protection layer 12 is removed, which may affect the subsequent process flow. The large adhesion between the first bonding subsection 143 and the first protective layer 12 is large, so that when the first protective layer 12 is torn off, the first bonding subsection 143 and the first protective layer 12 are removed simultaneously, and the surface of the first support subsection 111 is not provided with glue.

Specifically, how to arrange the first bonding subsection 143 so that the adhesion force between the first bonding subsection 143 and the materials on both sides is different is not limited in the embodiment of the present invention, and those skilled in the art can select the first bonding subsection according to actual requirements, and any technical solutions capable of achieving different adhesion forces on both sides of the first bonding subsection 143 are within the technical solution protected by the embodiment of the present invention.

For example, in one possible embodiment, the first adhesive subsection 143 may include a strong and weak adhesive pad; the strong and weak adhesive gasket comprises a strong adhesive surface and a weak adhesive surface, and the viscosity of the strong adhesive surface is greater than that of the weak adhesive surface; the strongly adhesive side adheres to the first protective layer 12 and the weakly adhesive side adheres to the first support section 111.

Specifically, in the present embodiment, the first bonding portion 143 may be formed by a strong and weak adhesive pad, and the first supporting portion 111 and the first protection layer 12 are attached by the strong and weak adhesive pad. The surfaces of the two sides of the strong and weak adhesive gaskets are respectively a strong adhesive surface and a weak adhesive surface, the adhesiveness of the strong adhesive surface is greater than that of the weak adhesive surface, the strong adhesive surface of the strong and weak adhesive gaskets is close to the first protection layer 12 and is attached to the first protection layer 12, and the weak adhesive surface of the strong and weak adhesive gaskets is close to the first support subsections 111 and is attached to the first support subsections 111.

In this embodiment, the first bonding subsection 143 is configured as a strong and weak adhesive pad, and a strong adhesive surface is configured to attach the first protection layer 12, and a weak adhesive surface is configured to attach the first protection layer 12, so that the adhesion between the first bonding subsection 143 and the first support subsection 111 is smaller than the adhesion between the first bonding subsection 143 and the first protection layer 12, which is beneficial to reducing the manufacturing cost of the support structure 1 and simplifying the manufacturing process.

Optionally, fig. 3 is a schematic structural diagram of another supporting structure provided in the embodiment of the present invention, and referring to fig. 3, in a possible embodiment, the supporting structure 1 may further include a second passivation layer 121 located between the second supporting subsection 112 and the first passivation layer 12; the second adhesion subsection 144 includes a first sub-adhesion subsection 145 located between the second support subsection 112 and the second protective layer 121 and a second sub-adhesion subsection 146 located between the second protective layer 121 and the first protective layer 12; wherein the viscosity of the first sub-adhesive subsection 145 is greater than the viscosity of the second sub-adhesive subsection 146.

In particular, as shown in fig. 3, a second protective layer 121 is also provided in the support structure 1, the second protective layer 121 being located between the second support subsection 112 and the first protective layer 12. At this time, the second adhesion subsection 144 may further include a first sub-adhesion subsection 145 and a second sub-adhesion subsection 146, the first sub-adhesion subsection 145 being located between the second support subsection 112 and the second protective layer 121 for adhering the second support subsection 112 and the second protective layer 121; the second sub-adhesion subsection 146 is located between the first protective layer 12 and the second protective layer 121, and serves to adhere the first protective layer 12 and the second protective layer 121.

Wherein the viscosity of the first sub-adhesive subsection 145 is greater than the viscosity of the second sub-adhesive subsection 146, i.e. the adhesion between the first protective layer 12 and the second protective layer 121 is smaller than the adhesion between the second support subsection 112 and the second protective layer 121. Meanwhile, the adhesion of the first protective layer 12 and the second protective layer 121 may also be set to be equal to the adhesion between the first bonding subsection 143 and the first support subsection 111.

It can be understood that after the release layer 13 of the supporting structure 1 is removed and attached to the non-light-emitting side of the display panel 2, the first protection layer 12 needs to be removed first, and then the second supporting sections 112 need to be bent to the back of the display panel 2. At this time, since the adhesion of the first protective layer 12 and the second protective layer 121 is equal to the adhesion between the first adhesion branch 143 and the first support branch 111, when the first protective layer 12 is peeled off, the first adhesion branch 143 and the second sub-adhesion branch 146 are removed simultaneously with the first protective layer 12, and the second protective layer 121 remains on the surface of the second support branch 112. In this way, when the second support subsection 112 is bent, the second passivation layer 121 can protect the second support subsection 112, so as to prevent the surface of the side of the second support subsection 112 that will be attached to the display panel 2 from being damaged during bending, thereby ensuring the attaching effect of the second support subsection 112 and the display panel 2.

With reference to the above embodiment, F1 is represented by the adhesion between the release layer 13 and the support layer 11, F2 is represented by the adhesion between the first adhesion branch 143 and the first support branch 111, F3 is represented by the adhesion between the first adhesion branch 143 and the first protective layer 12, F4 is represented by the adhesion between the first protective layer 12 and the second protective layer 121, and F5 is represented by the adhesion between the second protective layer 121 and the second support branch 112, and in combination with the above embodiment, F1 < F2 < F4 < F5, and F1 < F2 < F4 < F3, can be set in the present application to ensure the peeling effect of the first protective layer 12 and the release layer 13. The relative sizes of F3 and F5 are not limited in the embodiments of the present invention, and those skilled in the art can set the relative sizes according to actual requirements, for example, F5 < F3 can be set, but not limited thereto.

Alternatively, and still referring to fig. 3, in a possible embodiment, the sum of the thicknesses of the first support subsection 111 and the first adhesion subsection 143 is L1, and the sum of the thicknesses of the second support subsection 112, the first sub-adhesion subsection 145, the second protective layer 121 and the second sub-adhesion subsection 146 is L2; wherein, | L2-L1|/L1 is less than or equal to 20%.

In this embodiment, the overall thickness of each supporting structure 1 may be further set, as shown in fig. 3, L1 represents the sum of the thicknesses of the first supporting branch 111 and the first bonding branch 143, that is, the total thickness of each film layer in the second supporting region 15 is L1 along the first direction X and between the first protecting layer 12 and the releasing layer 13; l2 represents the sum of the thicknesses of the two supporting branches, the first sub-bonding branch 145, the second passivation layer 121 and the second sub-bonding branch 146, i.e., the total thickness of the film layers in the third supporting region 16 along the first direction X is L2 and is located between the first passivation layer 12 and the release layer 13.

L2-L1/L1 may be set to be less than or equal to 20%, that is, after the first protection layer 12 and the release layer 13 are removed, the difference ratio between the total thickness of the film layers of the support structure 1 in the third support region 16 and the total thickness of the film layers in the second support region 15 is less than or equal to 0.2. In this arrangement, the difference between L1 and L2 is small, so that the adhesion effect of the first protection layer 12, the release layer 13 and the above films in the support structure 1 can be ensured.

In a preferred embodiment, L2-L1/L1 =0 may be set, i.e. L1 and L2 are equal, at this time, the first protection layer 12 and the release layer 13 can both be tightly attached to the film structure, so as to prevent impurities such as dust from entering gaps between the films and affecting the normal application of the supporting structure 1.

The specific values of L1 and L2 are not limited in the embodiments of the present invention, and can be adjusted by those skilled in the art according to actual requirements.

Alternatively, and still referring to fig. 1, in a possible embodiment, the thickness D1 of the first support subsection 111 is smaller than the thickness D2 of the second support subsection 112.

Specifically, as shown in fig. 1, the thickness of the first support subsection 111 corresponding to the display area 21 of the display panel 2 is D1, and the thickness of the second support subsection 112 corresponding to the binding area 22 of the display panel 2 is D2, in this embodiment, D1 may be set to be smaller than D2. In general, the display area 21 of the display panel 2 occupies a larger area of the entire display panel 2, and the bonding area 22 occupies a relatively smaller area of the entire display panel 2. The thickness D1 of the first support subsection 111 is smaller than the thickness D2 of the second support subsection 112, and after the support structure 1 is attached to the display panel 2, the overall thickness of the display device is smaller, which is beneficial to making the display device light and thin.

The specific values of D1 and D2 are not limited in the embodiments of the present invention, and can be adjusted by those skilled in the art according to actual requirements.

Optionally, in a possible embodiment, the peel strength of the first adhesive layer 141 is greater than or equal to 780N/m, and the peel strength of the second adhesive layer 142 is greater than or equal to 780N/m. The peel strength can also be understood as a peel force or an adhesive force, and in this embodiment, the peel strength of the first adhesive layer 141 and the peel strength of the second adhesive layer 142 can be set to be greater than 780N/m, so as to ensure that the supporting structure 1 does not bounce after being bent, and improve the adhesion effect between the supporting structure 1 and the display panel 2.

Based on the same concept, an embodiment of the invention further provides a display device, fig. 4 is a schematic structural diagram of the display device provided by the embodiment of the invention, and fig. 4 shows a state when the display panel 2 and the support structure 1 are not bent. As shown in fig. 4, the display device comprises a support structure 1 provided in any of the embodiments of the present invention; the display panel 2 is further included, the display panel 2 includes a bending area 20, and the supporting structure 1 includes a first supporting area 10; the first support area 10 is attached to the bending area 20; the support structure 1 comprises a support layer 11 and an adhesive layer (not shown) which is arranged offset to the bending zone 20.

Since the adhesive layer is thin, the thickness of the adhesive layer is negligible after the support structure 1 is attached to the display panel 2, so the adhesive layer is not shown in fig. 4, and the specific arrangement of the adhesive layer can be referred to the above embodiment. The display device provided by the embodiment of the invention comprises all technical features and corresponding beneficial effects of the support structure provided by any embodiment of the invention, and details are not repeated herein.

Alternatively, fig. 5 is a schematic structural diagram of another display device provided in an embodiment of the present invention, fig. 6 is an enlarged schematic structural diagram of fig. 5 at Z, and referring to fig. 5 and fig. 6, in a possible embodiment, the support structure 1 may further include a second support region 15 and a third support region 16, and the first support region 10 is located between the second support region 15 and the third support region 16; the display panel 2 further includes a display area 21 and a binding area 22, and the bending area 20 is located between the display area 21 and the binding area 22; the second supporting region 15 is attached to the display region 21, the third supporting region 16 is attached to the binding region 22, and the binding region 22 is bent to the non-light-emitting side of the display panel 2 along the bending region 20; the display device further comprises a protective structure 30, the protective structure 30 being arranged between the first support subsection 111 and the second support subsection 112; the bending radius of the bending zone 20 is R, the thickness of the first support subsection 111 is D1, the thickness of the second support subsection 112 is D2, and the thickness of the protection structure 30 is D3; wherein R = (D1 + D2+ D3)/2.

Wherein the support structure 1 further comprises a second support area 15 and a third support area 16, the first support area 10 being located between the second support area 15 and the third support area 16. The display panel 2 further comprises a display area 21 and a binding area 22, the bending area 20 is located between the display area 21 and the binding area 22, the second support area 15 of the support structure 1 is relatively attached to the display area 21 of the display panel 2, the third support area 16 of the support structure 1 is relatively attached to the binding area 22 of the display panel 2, the binding area 22 is bent to the non-light-emitting side of the display panel 2, namely the back side of the display panel 2, along the bending area 20, and during bending, the second support sub-portion 112 located in the third support area 16 and the binding area 22 are bent to the non-light-emitting side of the display panel 2 together.

Referring to fig. 5 and 6, the display device further includes a protection structure 30, after the second support subsection 112 and the bonding region 22 are bent to the back of the display panel 2, the protection structure 30 is located between the first support subsection 111 and the second support subsection 112 along a vertical light emitting direction parallel to the display panel 2. The protection structure 30 may be a Super Clean Foam (SCF) structure and/or a copper foil structure, but is not limited thereto, and the protection structure 30 may buffer a stress applied to the display panel 2, prevent the display panel 2 from being deformed and broken, and/or perform a good heat conduction function, etc.

It will be appreciated that the bending radius R of the second support subsection 112 and the binding region 22 is related to the thickness of the first support subsection 111, the second support subsection 112 and the protective structure. As shown in fig. 6, when the arrangement of the first support subsection 111 and the second support subsection 112 in the present application is adopted, the bending radius R of the bending region 20, the thickness of the first support subsection 111 is D1, the thickness of the second support subsection 112 is D2, and the thickness D3 of the protection structure 30 should satisfy R = (D1 + D2+ D3)/2.

Fig. 7 is a flowchart of a display device attaching method according to an embodiment of the present invention, fig. 8 is a schematic diagram of the display device attaching method shown in fig. 7, and referring to fig. 7 and fig. 8, the display device attaching method according to an embodiment of the present invention includes:

and S110, providing a support structure and a display panel.

Referring to fig. 8 (a), the supporting structure 1 may be the supporting structure 1 provided in any embodiment of the present invention, and the display panel 2 may be set by a person skilled in the art according to actual requirements, which is not described and limited in the embodiment of the present invention. The display panel 2 comprises a bending area 20, a display area 21 and a binding area 22, and the support structure 1 comprises a first support area 10, a second support area 15 and a third support area 16.

S120, tearing off the release layer on one side of the support structure, and attaching the exposed surface of the support structure after the release film is torn off to the non-light-emitting side of the display panel.

Referring to fig. 8 (b), specifically, the supporting layer 11 in the supporting structure 1 is bonded to the release layer 13 and the first protective layer 12 through the bonding layer 14, when the supporting structure 1 is bonded to the display panel 2, the release layer 13 on one side of the supporting structure is firstly torn off, and the supporting layer 11 is attached to the non-light-emitting side of the display panel 2 through the bonding layer 14 on the side of the supporting structure 1 close to the release layer 13.

In addition, because the adhesive force between the release layer 13 and the supporting layer 11 is smaller than the adhesive force between the first protective layer 12 and the supporting layer 11, the peeling difficulty of the release layer 13 is smaller, when the first protective layer 12 and the release layer 13 on both sides of the supporting layer 11 are peeled, the release layer 13 can be firstly separated from the supporting structure 1, and the first protective layer 12 is still remained on the supporting structure 1. Note that since the adhesive layer 14 is thin, the adhesive layer 14 between the support structure 1 and the display panel 2 is not shown after the support structure 1 is attached to the display panel 2 via the adhesive layer 14.

In this step, it is ensured that the first support region 10 is attached to the bending region 20, the second support region 15 is attached to the display region 21, and the third support region 16 is attached to the binding region 22.

S130, tearing off the first protective layer on the other side of the supporting structure, and attaching the protective structure to the surface of one side, away from the display panel, of the first supporting subsection.

Referring to fig. 8 c, since the adhesion between the first adhesion part (not shown) and the first support part 111 is smaller than the adhesion between the first adhesion part (not shown) and the first protective layer 12, and the adhesion between the first protective layer 12 and the second protective layer 121 is equal to the adhesion between the first adhesion part (not shown) and the first support part 111, when the first protective layer 12 is peeled off, the first adhesion part (not shown) and the second sub-adhesion part (not shown) are removed simultaneously with the first protective layer 12, the first support part 111 is exposed, and the second protective layer 121 remains on the surface of the second support part 112. The protective structure 30 is then glued to the exposed surface of the first support subsection 111 of the support structure 1.

S140, bending the part of the support structure, which is positioned in the third support area, and the binding area of the display panel to the non-light-emitting side of the display panel, tearing off the second protective layer, and attaching the second support subsection to the protective structure.

Referring to fig. 8 (d), the second protection layer 121, the second support subsection 112 and the display panel 2 binding region 22 are simultaneously bent to the back side of the display panel 2. The second protective layer 121 is removed and the second support section 112 is directly secured to the surface of the protective structure 30 remote from the first support section 111 by a first adhesive sub-section (not shown).

It is to be noted that the foregoing description is only exemplary of the invention and that the principles of the technology may be employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious modifications, rearrangements, combinations and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in some detail by the above embodiments, the invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the invention, and the scope of the invention is determined by the scope of the appended claims.

Claims (10)

1. The supporting structure is characterized in that the supporting structure is used for being attached to the non-light-emitting side of the display panel;

the support structure comprises a first support area, the display panel comprises a bending area, and the first support area is used for being attached to the bending area;

the supporting structure further comprises a supporting layer, a first protective layer, a release layer and an adhesive layer, wherein the first protective layer and the release layer are respectively positioned on two sides of the supporting layer and are respectively bonded with the supporting layer through the adhesive layer;

the adhesive force between the release layer and the supporting layer is smaller than that between the first protective layer and the supporting layer, and the adhesive layer and the first supporting area are arranged in a staggered mode along a first direction; the first direction is parallel to the direction of the supporting layer pointing to the release layer.

2. The support structure of claim 1, wherein the adhesive layer comprises a first adhesive layer disposed between the first protective layer and the support layer and a second adhesive layer disposed between the release layer and the support layer;

the viscidity of first tie coat is greater than the viscidity of second tie coat, and follows first direction, first tie coat with the second tie coat all with first supporting region staggers the setting.

3. The support structure of claim 2, further comprising a second support region and a third support region, the first support region being located between the second support region and the third support region; the display panel further comprises a display area and a binding area, and the bending area is positioned between the display area and the binding area; the second supporting area is used for being attached to the display area, and the third supporting area is used for being attached to the binding area;

the support layer comprises a first support subsection at the second support region and a second support subsection at the third support region, the first bonding layer comprises a first bonding subsection at the second support region and a second bonding subsection at the third support region; wherein an adhesion between the first bonding subsection and the first support subsection is less than an adhesion between the first bonding subsection and the first protective layer.

4. The support structure of claim 3, wherein the first adhesive subsection comprises a strong and weak adhesive pad;

the strong and weak adhesive gasket comprises a strong adhesive surface and a weak adhesive surface, and the viscosity of the strong adhesive surface is greater than that of the weak adhesive surface;

the strong glue side is adhered to the first protective layer and the weak glue side is adhered to the first support section.

5. The support structure of claim 3, further comprising a second protective layer between the second support section and the first protective layer;

the second bonding subsection includes a first sub-bonding subsection located between the second support subsection and the second protective layer and a second sub-bonding subsection located between the second protective layer and the first protective layer;

wherein the first sub-adhesive section has a viscosity greater than a viscosity of the second sub-adhesive section.

6. The support structure of claim 5, wherein the sum of the thicknesses of the first support subsection and the first bonding subsection is L1, and the sum of the thicknesses of the second support subsection, the first sub-bonding subsection, the second protective layer, and the second sub-bonding subsection is L2;

wherein, | L2-L1|/L1 is less than or equal to 20%.

7. A support structure as claimed in claim 3 wherein the thickness of the first support section is less than the thickness of the second support section.

8. The support structure of claim 2, the first adhesive layer having a peel strength greater than or equal to 780N/m, the second adhesive layer having a peel strength greater than or equal to 780N/m.

9. A display device comprising the support structure of any one of claims 1-8;

the display device further comprises a display panel, the display panel comprises a bending area, and the support structure comprises a first support area; the first supporting area is attached to the bending area;

the supporting structure comprises a supporting layer and a bonding layer, and the bonding layer and the bending area are arranged in a staggered mode.

10. The display device according to claim 9, wherein the support structure further comprises a second support region and a third support region, the first support region being located between the second support region and the third support region; the display panel further comprises a display area and a binding area, and the bending area is positioned between the display area and the binding area; the second supporting area is attached to the display area, the third supporting area is attached to the binding area, and the binding area is bent to the non-light-emitting side of the display panel along the bending area;

the display device further comprises a protective structure disposed between the first support section and the second support section;

the bending radius of the bending area is R, the thickness of the first support subsection is D1, the thickness of the second support subsection is D2, and the thickness of the protection structure is D3;

wherein, R = (D1 + D2+ D3)/2.

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