Display component and preparation method thereof, and protective film

Abstract

The present disclosure provides a display component and a preparation method thereof, and a protective film. The display component includes: a flexible display panel and a protective film, the flexible display panel includes a first region, a second region, and a third region connected in sequence, the protective film includes a first adhesive layer, a body layer, a second adhesive layer, and a first support layer stacked in sequence in a direction away from the flexible display panel; the second adhesive layer has an overlapping region with the first region of the flexible display panel, the second adhesive layer has a vacant region at a position opposite to a boundary of the first region of the flexible display panel away from the second region, and the second adhesive layer has a vacant region at a position opposite to the central region of the first region of the flexible display panel.

Description

Technical Field

[0001] The present disclosure belongs to the field of display technology, and particularly relates to a display component and a preparation method thereof, and a protective film. Background Art

[0002] This section is intended to provide a background or context to the embodiments recited in the claims. No admission is made that the description herein is prior art by inclusion in this section.

[0003] Flexible display panels have weak mechanical strength, so a protective film is usually attached to the non-light-emitting surface of the flexible display panel, and a stress control film is then attached to the surface of the protective film away from the flexible display panel. It is necessary to maximize the yield and efficiency of the protective film attachment process. Summary of the invention

[0004] The present disclosure provides a display component, a preparation method thereof, and a protective film.

[0005] The present disclosure adopts the following scheme: a display assembly, comprising: a flexible display panel and a protective film;

[0006] The flexible display panel comprises a first area, a second area and a third area which are connected in sequence, the portion of the front surface of the flexible display panel located in the first area comprises a light-emitting surface, and the third area of ​​the flexible display panel is used to be electrically connected to an external circuit;

[0007] The protective film is attached to the back of the flexible display panel, and the protective film includes a first adhesive layer, a body layer, a second adhesive layer and a first support layer which are sequentially stacked in a direction away from the flexible display panel;

[0008] The outer boundaries of the first adhesive layer, the body layer and the first supporting layer are all flush with the boundaries of the flexible display panel;

[0009] The body layer comprises a first sub-body layer arranged opposite to the first area of ​​the flexible display panel and a second sub-body layer arranged opposite to the third area of ​​the flexible display panel, and the body layer is vacant at a position opposite to the second area of ​​the flexible display panel;

[0010] The second glue layer has an overlapping area with the first area of ​​the flexible display panel, the second glue layer has a vacant area at a position opposite to the boundary of the first area of ​​the flexible display panel away from the second area, and the second glue layer has a vacant area at a position opposite to the central area of ​​the first area of ​​the flexible display panel.

[0011] In some embodiments, the second glue layer includes a first sub-glue layer and a second sub-glue layer spaced apart along a first direction, the first direction being a connecting direction of a first area and a second area of ​​the flexible display panel when the flexible display panel is in a flat state, the first sub-glue layer having a vacant area on a side away from the second sub-glue layer, and the vacant area between the first sub-glue layer and the second sub-glue layer being arranged opposite to the first area of ​​the flexible display panel.

[0012] In some embodiments, the second sub-glue layer has a vacant area on a side thereof away from the first sub-glue layer.

[0013] In some embodiments, the second sub-glue layer has no overlap with the second sub-body layer.

[0014] In some embodiments, the protective film also includes a third adhesive layer filled between the first sub-body layer and the second sub-body layer, the third adhesive layer is connected to the first adhesive layer and the second sub-adhesive layer of the second adhesive layer, and the viscosity between the third adhesive layer and the second adhesive layer is greater than the viscosity between the third adhesive layer and the first adhesive layer.

[0015] In some embodiments, the first sub-glue layer is in the shape of a strip extending along the second direction, and / or the second sub-glue layer is in the shape of a strip extending along the second direction;

[0016] The second direction is perpendicular to the first direction and parallel to a plane where the flexible display panel is located when the flexible display panel is in a flat state.

[0017] The present disclosure adopts the following scheme: a protective film, the protective film comprising a second supporting layer, a first adhesive layer, a body layer, a second adhesive layer and a first supporting layer stacked in sequence;

[0018] The second supporting layer, the first adhesive layer and the first supporting layer are a whole-surface structure;

[0019] The main body layer has a plurality of vacant areas extending along a second direction, the second adhesive layer includes vacant areas spaced apart along a first direction, the first direction is a direction parallel to the plane where the protective film is located, the second direction is perpendicular to the first direction and parallel to the plane where the protective film is located, and the vacant areas of the second adhesive layer have an overlapping area with the entity of the main body layer.

[0020] In some embodiments, the second adhesive layer includes: first sub-adhesive layers and second sub-adhesive layers alternately arranged in sequence along a first direction, there is a vacant area between adjacent first sub-adhesive layers and second sub-adhesive layers, and the vacant area between each pair of first sub-adhesive layers and second sub-adhesive layers is arranged opposite to the entity of the main layer.

[0021] In some embodiments, the protective film also includes a third adhesive layer filling the vacant area of ​​the main layer, the third adhesive layer is connected to the first adhesive layer and the second adhesive layer, and the adhesion between the third adhesive layer and the second adhesive layer is greater than the adhesion between the third adhesive layer and the first adhesive layer.

[0022] In some embodiments, the first sub-glue layer is in a strip shape extending along the second direction, and / or the second sub-glue layer is in a strip shape extending along the second direction.

[0023] The present disclosure adopts the following scheme: A method for preparing a display component, comprising:

[0024] A flexible display motherboard is provided, wherein the flexible display motherboard can be cut into a plurality of flexible display panels, wherein the flexible display panel comprises a first area, a second area and a third area connected in sequence, wherein a portion of the front surface of the flexible display panel located in the first area comprises a light-emitting surface, and the third area of ​​the flexible display panel is used to be electrically connected to an external circuit;

[0025] A protective film is provided, the protective film comprising a second supporting layer, a first adhesive layer, a main body layer, a second adhesive layer and a first supporting layer which are stacked in sequence; the second supporting layer, the first adhesive layer and the first supporting layer are a whole-surface structure; the main body layer has a plurality of vacant areas extending along a second direction, the second adhesive layer comprises vacant areas arranged at intervals in a first direction, the first direction is a direction parallel to a plane where the protective film is located, the second direction is perpendicular to the first direction and parallel to the plane where the protective film is located, and the vacant areas of the second adhesive layer have an overlapping area with the entity of the main body layer;

[0026] The second supporting layer of the protective film is removed, and the first adhesive layer is adhered to the other side surface of the display motherboard opposite to the display light-emitting surface, wherein the second adhesive layer has an overlapping area with the first area of ​​the flexible display panel, the second adhesive layer has a vacant area at a position opposite to the boundary of the first area of ​​the flexible display panel away from the second area, and the second adhesive layer has a vacant area at a position opposite to the central area of ​​the first area of ​​the flexible display panel;

[0027] The display motherboard and the protective film are cut to obtain a plurality of flexible display panels, wherein the flexible display panels are flush with the boundaries of the cut protective films.

[0028] In some embodiments, the second adhesive layer includes: first sub-adhesive layers and second sub-adhesive layers alternately arranged in sequence along the first direction; there is a vacant area between adjacent first sub-adhesive layers and second sub-adhesive layers, and the vacant area between each pair of adjacent first sub-adhesive layers and second sub-adhesive layers is arranged opposite to the entity of the main body layer;

[0029] The vacant area between each pair of adjacent first sub-glue layers and second sub-glue layers is arranged relative to the first area of ​​the flexible display panel, and the connection direction of the first sub-glue layer and the second sub-glue layer is the same as the connection direction of the first area and the second area of ​​the flexible display panel.

[0030] In some embodiments, the protective film also includes a third adhesive layer filled between the first sub-body layer and the second sub-body layer, the third adhesive layer is connected to the first adhesive layer and the second adhesive layer, and the viscosity between the third adhesive layer and the second adhesive layer is greater than the viscosity between the third adhesive layer and the first adhesive layer.

[0031] In some embodiments, the first sub-glue layer is in the shape of a strip extending along the second direction, and / or the second sub-glue layer is in the shape of a strip extending along the second direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a perspective view of a display assembly in the related art before the protective film is cut.

[0033] Figure 2 yes Figure 1 The perspective view shown is a cross-sectional view along line AA.

[0034] Figure 3a is a perspective view of a display assembly provided by an embodiment of the present disclosure.

[0035] Figure 3b yes Figure 3a The shown diagram is a cross-sectional view of the display assembly along line BB.

[0036] Figure 3c and Figure 3d They are Figure 3b A cross-sectional view of a variation of the display assembly is shown.

[0037] Figure 3e yes Figure 3a A perspective view of a variation of the display assembly is shown.

[0038] Figure 4 is a cross-sectional view of a protective film provided by an embodiment of the present disclosure.

[0039] Figure 5 It is a schematic diagram of the process of preparing the display component of the embodiment of the present disclosure.

[0040] Figure 6 It is a perspective view of the display motherboard and the protective film after being attached to each other according to the embodiment of the present disclosure.

[0041] Figure 7 yes Figure 6 The structure shown is a cross-sectional view along line CC.

[0042] The attached marks are: 1, flexible display panel; 1a, display light-emitting surface; 1b, pad area; 11, first area; 12, second area; 13, third area; 10, display motherboard; 2, 20, protective film; 21, second supporting layer; 22, first adhesive layer; 23, main body layer; 23a, first sub-main body layer; 23b, second sub-main body layer; 23c, third adhesive layer; 24a, first sub-adhesive layer; 24b, second sub-adhesive layer; 25, first supporting layer. DETAILED DESCRIPTION

[0043] The present disclosure is further described below in conjunction with the embodiments shown in the accompanying drawings.

[0044] Figure 1 It is a perspective view of a display assembly in the related art before the protective film is cut. Figure 2 yes Figure 1 The perspective view shown is a cross-sectional view along line AA.

[0045] For the convenience of description, in the present disclosure, the side surface of the flexible display panel 1 where the light-emitting surface 1a is located is referred to as the front side of the flexible display panel 1 , and the side surface of the flexible display panel 1 opposite to the front side is referred to as the back side of the flexible display panel 1 .

[0046] refer to Figure 1 and Figure 2 In the process known to the inventor of the present application, the protective film 2 is attached to the back of a single flexible display panel 1. The protective film 2 exceeds the flexible display panel 1.

[0047] The flexible display panel 1 can be divided into a first area 11, a second area 12 and a third area 13. The display light-emitting surface 1a is located in the first area 11. The second area 12 of the flexible display panel 1 is bent in the application state, so that the back of the third area 13 of the flexible display panel 1 and the back of the first area of ​​the flexible display panel 1 are opposite to each other. A pad area 1b is provided at the front of the third area 13 of the flexible display panel 1. The pad area 1b includes a plurality of pads (not shown) for connecting a connector (not shown) such as a flexible circuit board. The connector is used to electrically connect an external circuit such as a mainboard to the flexible display panel 1.

[0048] The protective film 2 is a multilayer structure, including a first adhesive layer 22, a body layer, a second adhesive layer 24 and a first support layer 25 stacked in sequence in a direction away from the flexible display panel 1. The body layer includes a first sub-body layer 23a and a second sub-body layer 23b that are separated from each other. The first adhesive layer 22, the second adhesive layer 24 and the first support layer 25 are a whole layer structure. The first sub-body layer 23a is arranged opposite to the first area 11 of the flexible display panel 1. The second sub-body layer 23b is arranged opposite to the third area 13 of the flexible display panel 1. The vacant area between the first sub-body layer 23a and the second sub-body layer 23b is arranged opposite to the second area 12 of the flexible display panel 1.

[0049] The protective film 2 extends beyond the flexible display panel 1. In subsequent process steps, a laser cutting process is used to cut off the portion of the protective film 2 extending beyond the flexible display panel 1, and then the first support layer 25 together with the second adhesive layer 24 is torn off.

[0050] The inventors of the present application have found that: since it is necessary to attach a protective film 2 to each flexible display panel 1, and each piece of protective film 2 needs to be cut, the waiting time for subsequent steps is too long, and the process production efficiency is low. In the process of cutting the protective film 2, more debris will be generated, and static electricity is easily generated in the process of tearing off the first support layer 25 and the second adhesive layer 24, causing debris to be adsorbed on the main body layer. This is likely to cause poor display black spots. Since the second adhesive layer 24 is a whole-surface structure, the process of the robot tearing off the first support layer 25 and the second adhesive layer 24 is prone to failure, and it is easy to lift up the second sub-body layer 23b. This further reduces the yield and efficiency of the flexible display component production process. The second adhesive layer is a whole-surface structure. In the subsequent process steps, the flexible display panel is facing upward to prevent the particles on the surface of the process machine from easily lifting the protective film, thereby causing damage to the flexible display panel.

[0051] In view of this, the inventor of the present application proposes a display component, Figure 1 and Figure 2 Compared with the display component, the second glue layer has an overlapping area with the first area of ​​the flexible display panel, the second glue layer has a vacant area at a position opposite to the boundary of the first area of ​​the flexible display panel away from the second area, and the second glue layer has a vacant area at a position opposite to the central area of ​​the first area of ​​the flexible display panel.

[0052] Figure 3a is a perspective view of a display assembly provided by an embodiment of the present disclosure. Figure 3b yes Figure 3a The shown diagram is a cross-sectional view of the display assembly along line BB.

[0053] refer to Figure 3a and Figure 3bAn embodiment of the present disclosure provides a display assembly, including: a flexible display panel 1 and a protective film 2.

[0054] The flexible display panel 1 is, for example, an organic light emitting diode display panel. The flexible display panel 1 includes a first region, a second region, and a third region connected in sequence, a portion of the front of the flexible display panel 1 located in the first region 11 includes a display light-emitting surface 1a, and the third region 13 of the flexible display panel 1 is used to be electrically connected to an external circuit (not shown).

[0055] The protective film 2 is attached to the back surface of the flexible display panel 1 , and includes a first adhesive layer 22 , a body layer, a second adhesive layer and a first support layer 25 which are sequentially stacked in a direction away from the flexible display panel 1 .

[0056] In some embodiments, the material of the first adhesive layer 22 includes: pressure-sensitive adhesive (such as acrylic adhesive).

[0057] In some embodiments, the material of the body layer includes polyethylene terephthalate (PET).

[0058] In some embodiments, the material of the second adhesive layer includes: pressure-sensitive adhesive (such as acrylic adhesive).

[0059] In some embodiments, the material of the first supporting layer 25 includes polyethylene terephthalate (PET).

[0060] The outer boundaries of the first adhesive layer 22, the body layer, and the first supporting layer 25 are all flush with the boundaries of the flexible display panel;

[0061] The body layer includes a first sub-body layer 23a arranged opposite to the first area 11 of the flexible display panel 1 and a second sub-body layer 23b arranged opposite to the third area 13 of the flexible display panel 1 . The body layer is vacant at a position opposite to the second area 12 of the flexible display panel 1 .

[0062] The second glue layer includes a first sub-glue layer 24a and a second sub-glue layer 24b spaced apart along a first direction, the first direction being the direction of connection between the first area 11 and the second area 12 of the flexible display panel 1 when the flexible display panel 1 is in a flat state, the first sub-glue layer 24a has a vacant area on a side away from the second sub-glue layer 24b, the second sub-glue layer 24b has a vacant area on a side away from the first sub-glue layer 24a, and the vacant area between the first sub-glue layer 24a and the second sub-glue layer 24b is arranged opposite to the first area of ​​the flexible display panel.

[0063] Between the main body layer and the first supporting layer 25, the empty area of ​​the second adhesive layer is filled with air.

[0064] The contact area between the first sub-glue layer 24a and the second sub-glue layer 24b and the main body layer is smaller, and the static electricity generated in the process of tearing off the first supporting layer 25 and the second glue layer 24 is smaller.

[0065] Since there is a vacant area on the outer side of the first sub-glue layer 24 a , the robot can be inserted into the protective film in this area, so that it is convenient for the robot to tear off the first supporting layer 25 .

[0066] Since there is a vacant area on the outer side of the second sub-glue layer 24b, the contact area between the second sub-glue layer 24b and the second sub-body layer 23b is smaller, and the probability of the second sub-body layer 23b being lifted up during the process of tearing off the first support layer 25 is lower.

[0067] Since there is a vacant area between the first sub-glue layer 24a and the second sub-glue layer 24b, in the subsequent process steps, when the first supporting layer 25 is placed downward, even if there are foreign objects on the surface of the process machine that lift up the first supporting layer 25, it will not cause damage to the flexible display panel 1.

[0068] The above designs are all conducive to improving the yield of the display component in subsequent process steps.

[0069] In some embodiments, the protective film 2 also includes a third adhesive layer 23c filled between the first sub-body layer 23a and the second sub-body layer 23b, the third adhesive layer 23c is connected to the first adhesive layer 22 and the second sub-adhesive layer 24b of the second adhesive layer, and the viscosity between the third adhesive layer 23c and the second adhesive layer is greater than the viscosity between the third adhesive layer 23c and the first adhesive layer 22.

[0070] In the subsequent process steps, a cover plate will be attached to the front surface of the flexible display panel 1. The third adhesive layer 23c can provide better support for the flexible display panel 1 and reduce the generation of bubbles.

[0071] In order to simplify the preparation process of the protective film, the third adhesive layer 23c and the second adhesive layer have the same material and properties, and are formed in the same process steps.

[0072] In some other embodiments, air is filled between the first sub-body layer 23 a and the second sub-body layer 23 b.

[0073] In some embodiments, the first adhesive layer 22 , the second adhesive layer and the third adhesive layer 23 c are all formed of acrylic adhesive, and the adhesion between the third adhesive layer 23 c and the first adhesive layer 22 is relatively small by controlling the material composition and process parameters.

[0074] In some embodiments, reference Figure 3c The second sub-glue layer 24b does not overlap with the second sub-body layer 23b. The overlapping area of ​​the second sub-glue layer 24b and the second sub-body layer 23b can be removed by processes such as exposure, development, and etching.

[0075] This further ensures that the second sub-body layer will not be torn off during the process of tearing off the first support layer 25, thereby improving the yield of the product during the production process.

[0076] In other embodiments, reference Figure 3d The second sub-glue layer 24b is flush with the boundary of the second sub-body layer 23b away from the first sub-body layer 23a.

[0077] In some embodiments, the first sub-glue layer 24a is in the shape of a strip extending along the second direction, and / or the second sub-glue layer 24b is in the shape of a strip extending along the second direction; the second direction is perpendicular to the first direction and parallel to the plane where the flexible display panel is located when the flexible display panel is in a flat state.

[0078] In other embodiments, reference Figure 3e , the second adhesive layer 24 is in a rectangular ring shape.

[0079] Figure 4 is a cross-sectional view of the protective film 20 provided in the embodiment of the present disclosure. Based on the same inventive concept as the above embodiment, refer to Figure 4 Combined with Figure 3a , Figure 3b , Figure 6 and Figure 7 The embodiment of the present disclosure further provides a protective film 20, which includes a second supporting layer 21, a first adhesive layer 22, a body layer, a second adhesive layer and a first supporting layer 25 which are stacked in sequence.

[0080] In some embodiments, the material of the second supporting layer 21 includes polyethylene terephthalate (PET).

[0081] The second supporting layer 21, the first adhesive layer 22 and the first supporting layer 25 are a whole-surface structure.

[0082] The main layer has a plurality of vacant areas extending along the second direction, and the second adhesive layer includes a plurality of first sub-adhesive layers 24a and second sub-adhesive layers 24b alternately arranged in sequence along the first direction. The first direction is a direction parallel to the plane where the protective film 20 is located, and the second direction is perpendicular to the first direction and parallel to the plane where the protective film 20 is located.

[0083] There is a vacant area between adjacent first sub-glue layers 24a and second sub-glue layers 24b, and the vacant area between each pair of adjacent first sub-glue layers 24a and second sub-glue layers 24b is arranged opposite to the entity of the main body layer.

[0084] After tearing off the second supporting layer 21 of the protective film 20, the protective film 20 is pasted on the back of the display motherboard 10 as a whole layer, and then the flexible display panel 1 and the protective film 20 are cut. While cutting off a single flexible display panel 1, the display component provided in the aforementioned embodiment is also obtained.

[0085] In some embodiments, the protective film 20 also includes a third adhesive layer 23c filling the vacant area of ​​the main layer, the third adhesive layer 23c is connected to the first adhesive layer 22 and the second adhesive layer, and the adhesion between the third adhesive layer 23c and the second adhesive layer is greater than the adhesion between the third adhesive layer 23c and the first adhesive layer 22.

[0086] In some embodiments, the first sub-glue layer 24 a is in a strip shape extending along the second direction, and / or the second sub-glue layer 24 b is in a strip shape extending along the second direction.

[0087] Some variations of the above protective film 20 can refer to the above embodiments. These variations need to meet the following requirements: the second adhesive layer 24 includes vacant areas spaced along a first direction, the first direction is a direction parallel to the plane where the protective film is located, the second direction is perpendicular to the first direction and parallel to the plane where the protective film is located, and the vacant areas of the second adhesive layer 24 have an overlapping area with the entity of the main body layer.

[0088] Figure 5 It is a schematic diagram of the process of preparing the display component of the embodiment of the present disclosure. Figure 6 1 is a perspective view of the display motherboard 10 and the protective film 20 after being attached to each other according to the embodiment of the present disclosure. Figure 7 yes Figure 6 The structure shown is a cross-sectional view along line CC.

[0089] An embodiment of the present disclosure also provides a method for preparing a display assembly, comprising:

[0090] Step 101, providing a flexible display motherboard, the flexible display motherboard can be cut into a plurality of flexible display panels 1, the flexible display panel 1 includes a first area 11, a second area 12 and a third area 13 connected in sequence, the front portion of the flexible display panel 1 located in the first area 11 includes a display light-emitting surface 1a, and the third area 13 of the flexible display panel 1 is used for electrical connection with an external circuit.

[0091] Step 102, providing a protective film 20, the protective film 20 includes a second support layer 21, a first adhesive layer 22, a main body layer, a second adhesive layer and a first support layer 25 which are stacked in sequence; the second support layer 21, the first adhesive layer 22 and the first support layer 25 are a whole-surface structure; the main body layer has a plurality of vacant areas extending along the second direction, the second adhesive layer includes vacant areas spaced apart in the first direction, the first direction is a direction parallel to the plane where the protective film 20 is located, the second direction is perpendicular to the first direction and parallel to the plane where the protective film 20 is located, and the vacant areas of the second adhesive layer have an overlapping area with the entity of the main body layer.

[0092] Step 103, remove the second supporting layer 21 of the protective film 20, and stick the first adhesive layer 22 on the other side surface of the display motherboard 10 opposite to the display light-emitting surface 1a, wherein the second adhesive layer 24 has an overlapping area with the first area 11 of the flexible display panel 1, the second adhesive layer 24 has a vacant area at a position opposite to the boundary of the first area 11 of the flexible display panel 1 away from the second area 12, and the second adhesive layer 24 has a vacant area at a position opposite to the central area of ​​the first area 11 of the flexible display panel 1.

[0093] Step 104 : cutting the display motherboard 10 and the protective film 20 to obtain a plurality of flexible display panels 1 , wherein the boundaries of the flexible display panels 1 and the cut protective films 2 are flush.

[0094] In some embodiments, the second glue layer 24 includes: first sub-glue layers 24a and second sub-glue layers 24b alternately arranged in sequence along the first direction; there is a vacant area between adjacent first sub-glue layers 24a and second sub-glue layers 24b, and the vacant area between each pair of adjacent first sub-glue layers 24a and second sub-glue layers 24b is arranged opposite to the entity of the main layer; the vacant area between each pair of adjacent first sub-glue layers 24a and second sub-glue layers 24b is arranged opposite to the first area 11 of the flexible display panel 1, and the connection direction of the first sub-glue layer 24a and the second sub-glue layer 24b is the same as the connection direction of the first area 11 and the second area 12 of the flexible display panel 1.

[0095] In some embodiments, the protective film 20 also includes a third adhesive layer 23c filled between the first sub-body layer 23a and the second sub-body layer 23b, the third adhesive layer 23c is connected to the first adhesive layer 22 and the second adhesive layer, and the adhesion between the third adhesive layer 23c and the second adhesive layer is greater than the adhesion between the third adhesive layer 23c and the first adhesive layer 22.

[0096] In some embodiments, the first sub-glue layer 24 a is in a strip shape extending along the second direction, and / or the second sub-glue layer 24 b is in a strip shape extending along the second direction.

[0097] The various embodiments in the present disclosure are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0098] The protection scope of the present disclosure is not limited to the above-mentioned embodiments. Obviously, those skilled in the art can make various changes and modifications to the present disclosure without departing from the scope and spirit of the present disclosure. If these changes and modifications fall within the scope of the claims of the present disclosure and their equivalents, the intention of the present disclosure also includes these changes and modifications.

Claims

1. A display component, characterized in that: include: Flexible display panels and protective films; The flexible display panel comprises a first area, a second area and a third area which are connected in sequence, the portion of the front surface of the flexible display panel located in the first area comprises a light-emitting surface, and the third area of ​​the flexible display panel is used to be electrically connected to an external circuit; The protective film is attached to the back of the flexible display panel, and the protective film includes a first adhesive layer, a body layer, a second adhesive layer and a first support layer which are sequentially stacked in a direction away from the flexible display panel; The outer boundaries of the first adhesive layer, the body layer and the first supporting layer are all flush with the boundaries of the flexible display panel; The body layer comprises a first sub-body layer arranged opposite to the first area of ​​the flexible display panel and a second sub-body layer arranged opposite to the third area of ​​the flexible display panel, and the body layer is vacant at a position opposite to the second area of ​​the flexible display panel; The second glue layer has an overlapping area with the first area of ​​the flexible display panel, the second glue layer has a vacant area at a position opposite to the boundary of the first area of ​​the flexible display panel away from the second area, and the second glue layer has a vacant area at a position opposite to the central area of ​​the first area of ​​the flexible display panel.

2. The display assembly according to claim 1, characterized in that The second glue layer includes a first sub-glue layer and a second sub-glue layer spaced apart along a first direction, the first direction being a connecting direction of a first area and a second area of ​​the flexible display panel when the flexible display panel is in a flat state, the first sub-glue layer having a vacant area on a side away from the second sub-glue layer, and the vacant area between the first sub-glue layer and the second sub-glue layer being arranged opposite to the first area of ​​the flexible display panel.

3. The display assembly according to claim 2, characterized in that: The second sub-glue layer has a vacant area on a side thereof away from the first sub-glue layer.

4. The display assembly according to claim 3, characterized in that: The second sub-glue layer has no overlap with the second sub-body layer.

5. The display assembly according to claim 2, characterized in that: The protective film also includes a third adhesive layer filled between the first sub-body layer and the second sub-body layer, the third adhesive layer is connected to the first adhesive layer and the second sub-adhesive layer of the second adhesive layer, and the viscosity between the third adhesive layer and the second adhesive layer is greater than the viscosity between the third adhesive layer and the first adhesive layer.

6. The display assembly according to claim 2, characterized in that: The first sub-glue layer is in the shape of a strip extending along the second direction, and / or the second sub-glue layer is in the shape of a strip extending along the second direction; The second direction is perpendicular to the first direction and parallel to a plane where the flexible display panel is located when the flexible display panel is in a flat state.

7. A protective film, characterized in that: The protective film comprises a second supporting layer, a first adhesive layer, a main body layer, a second adhesive layer and a first supporting layer which are stacked in sequence; The second supporting layer, the first adhesive layer and the first supporting layer are a whole-surface structure; The main body layer has a plurality of vacant areas extending along a second direction, the second adhesive layer includes vacant areas spaced apart along a first direction, the first direction is a direction parallel to the plane where the protective film is located, the second direction is perpendicular to the first direction and parallel to the plane where the protective film is located, and the vacant areas of the second adhesive layer have an overlapping area with the entity of the main body layer.

8. The protective film according to claim 7, characterized in that: The second adhesive layer includes: first sub-adhesive layers and second sub-adhesive layers alternately arranged in sequence along the first direction, there is a vacant area between adjacent first sub-adhesive layers and second sub-adhesive layers, and the vacant area between each pair of adjacent first sub-adhesive layers and second sub-adhesive layers is arranged opposite to the entity of the main body layer.

9. The protective film according to claim 8, characterized in that: The protective film also includes a third adhesive layer filling the vacant area of ​​the main layer, the third adhesive layer is connected to the first adhesive layer and the second adhesive layer, and the adhesion between the third adhesive layer and the second adhesive layer is greater than the adhesion between the third adhesive layer and the first adhesive layer.

10. The protective film according to claim 8, characterized in that: The first sub-glue layer is in a strip shape extending along the second direction, and / or the second sub-glue layer is in a strip shape extending along the second direction.

11. A method for preparing a display component, characterized in that: include: A flexible display motherboard is provided, wherein the flexible display motherboard can be cut into a plurality of flexible display panels, wherein the flexible display panel comprises a first area, a second area and a third area connected in sequence, wherein a portion of the front surface of the flexible display panel located in the first area comprises a light-emitting surface, and the third area of ​​the flexible display panel is used to be electrically connected to an external circuit; A protective film is provided, the protective film comprising a second supporting layer, a first adhesive layer, a main body layer, a second adhesive layer and a first supporting layer which are sequentially stacked; the second supporting layer, the first adhesive layer and the first supporting layer are a whole-surface structure; the main body layer comprises a first sub-main body layer arranged opposite to a first area of ​​the flexible display panel and a second sub-main body layer arranged opposite to a third area of ​​the flexible display panel, the main body layer has a plurality of vacant areas extending along a second direction, the second adhesive layer comprises vacant areas arranged at intervals in a first direction, the first direction is a direction parallel to a plane where the protective film is located, the second direction is perpendicular to the first direction and parallel to the plane where the protective film is located, and the vacant areas of the second adhesive layer have an overlapping area with the entity of the main body layer; The second supporting layer of the protective film is removed, and the first adhesive layer is adhered to the other side surface of the display motherboard opposite to the display light-emitting surface, wherein the second adhesive layer has an overlapping area with the first area of ​​the flexible display panel, the second adhesive layer has a vacant area at a position opposite to the boundary of the first area of ​​the flexible display panel away from the second area, and the second adhesive layer has a vacant area at a position opposite to the central area of ​​the first area of ​​the flexible display panel; The display motherboard and the protective film are cut to obtain a plurality of flexible display panels, wherein the flexible display panels are flush with the boundaries of the cut protective films.

12. The method according to claim 11, characterized in that The second adhesive layer comprises: first sub-adhesive layers and second sub-adhesive layers arranged alternately in sequence along the first direction; there is a vacant area between adjacent first sub-adhesive layers and second sub-adhesive layers, and the vacant area between each pair of adjacent first sub-adhesive layers and second sub-adhesive layers is arranged opposite to the entity of the main body layer; The vacant area between each pair of adjacent first sub-glue layers and second sub-glue layers is arranged opposite to the first area of ​​the flexible display panel, and the connection direction of the first sub-glue layer and the second sub-glue layer is the same as the connection direction of the first area and the second area of ​​the flexible display panel.

13. The preparation method according to claim 12, characterized in that: The protective film also includes a third adhesive layer filled between the first sub-body layer and the second sub-body layer, the third adhesive layer is connected to the first adhesive layer and the second adhesive layer, and the viscosity between the third adhesive layer and the second adhesive layer is greater than the viscosity between the third adhesive layer and the first adhesive layer.

14. The preparation method according to claim 12, characterized in that: The first sub-glue layer is in a strip shape extending along the second direction, and / or the second sub-glue layer is in a strip shape extending along the second direction.

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