Display module and display device

By filling the organic material layer in the bent area of ​​the bend display device and covering the connection area with a protective layer, the problems of bending breakage and bright lines are solved, and the display performance and effect are improved.

CN113823194BActive Publication Date: 2025-03-28BOE TECHNOLOGY GROUP CO LTD +1
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Patent Information

Application Number
CN202111275720.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-10-29
Publication Date
2025-03-28
Estimated Expiration
2041-10-29

AI Technical Summary

Technical Problem

Existing bending display devices are prone to fracture at bends, resulting in bright lines problems and affecting display performance and effect.

Method used

A display module is designed, including a flexible substrate substrate and an inorganic material layer. By filling the organic material layer in the bending area, a bending area is formed, and a first connection area and a second connection area are arranged between the bending area and the panel area, and the entire connection area is covered with a protective layer to enhance connection stability.

Benefits of technology

By enhancing connection stability, reducing bending stress, avoiding bending and breaking, reducing bright line problems, and improving display performance and effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention provides a display module and a display device, which are applied in the field of display technology. The module includes a display panel, including a flexible substrate and an inorganic material layer, the inorganic material layer includes a grooved area that penetrates the substrate, and the organic material layer is filled in the grooved area to form a bending area; the display panel also includes a first area; the contact area between the inorganic material layer on the first area and the organic material layer in the bending area forms a first connection area; a first back film, at least a part of the bending area extends from the first end face of the first back film, and bends and extends in a direction away from the first end face; the orthographic projection of the first connection area on the plane where the first back film is located is located on the first back film; a protective layer, on the side of the first area away from the first back film, covers the bending area, and extends to cover the entire first connection area. The display module can avoid bending and breaking, causing bright line problems by setting the relative position relationship between the back film, the protective layer and the first connection area.
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Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to a display module and a display device. Background Art

[0002] With the development of flexible display technology, curved display has become the main development trend in the current display field. In addition to curved screens, folding screens are also one of the display structures of curved display. However, achieving bending or even folding is a design difficulty for curved display panels.

[0003] In the prior art, the folding screen is pulled at the bend due to the force, causing the connection layer to shift or bend and break, resulting in the problem of bright lines, affecting the performance and display effect of the display product. Therefore, it is necessary to improve the structure of the folding screen to solve this technical problem. Summary of the invention

[0004] The technical solution of the present invention aims to provide a display module and a display device, which are used to solve the problem that the curved display device in the prior art is prone to breakage at the bending part, resulting in bright lines.

[0005] An embodiment of the present invention provides a display module, comprising:

[0006] The display panel comprises a flexible substrate and an inorganic material layer on the flexible substrate, wherein the inorganic material layer comprises a groove region penetrating the substrate, and an organic material layer is filled in the groove region to form a bending region of the display panel;

[0007] The display panel further includes a first area located on one side of the bending area, the first area being a display area or a binding area; a contact area between the inorganic material layer on the first area and the organic material layer on the bending area forms a first connection area;

[0008] A first back film, wherein the first region is located on the first back film, and at least a portion of the bent region extends from a first end surface of the first back film and bends and extends in a direction away from the first end surface; and an orthographic projection of the first connecting region on a plane where the first back film is located is located on the first back film;

[0009] The protective layer covers the bending area on the side of the first area away from the first back film and extends to cover the entire first connecting area.

[0010] Optionally, the display module further comprises a first support body disposed on a side of the first backing film away from the first region;

[0011] The orthographic projections of the protective layer and the first region on the plane where the first support body is located respectively cover the second end surface of the first support body.

[0012] Optionally, in the display module, the first connection area is located between the first end surface and the second end surface, and a vertical distance from the first end surface to a first edge of the first connection area is greater than a vertical distance from the second end surface to a second edge of the first connection area;

[0013] The first edge is an edge of the first connection area close to the first end surface, and the second edge is an edge opposite to the first edge.

[0014] Optionally, in the display module, a vertical distance between the second end surface and the first end surface is greater than 0.35 mm, and a vertical distance between the first end surface and an edge of the first connection area close to the first end surface is greater than 0.2 mm.

[0015] Optionally, in the display module, the protective layer includes a third end surface arranged above the first area and away from the bending area, wherein a vertical distance between the third end surface and the first end surface is greater than 0.4 mm.

[0016] Optionally, in the display module, the display panel further comprises a second area located on the other side of the bending area;

[0017] The display module also includes:

[0018] a second backing film, wherein the second region is disposed on the second backing film, and at least a portion of the bent region extends from a fourth end surface of the second backing film;

[0019] The second support body is located on a side of the second backing film away from the second region and is connected to the second backing film.

[0020] Optionally, in the display module, the first area is one of a display area and a binding area, and the second area is the other of the display area and the binding area.

[0021] Optionally, in the display module, a contact area between the inorganic material layer on the second area and the organic material layer on the bending area forms a second connection area;

[0022] The protective layer also extends to cover the entire second connection area, and the orthographic projection of the second connection area on the plane where the second back film is located is located on the second back film.

[0023] Optionally, in the display module, the second supporting body includes a fifth end face arranged near the bending area, wherein the orthographic projection of the first back film on the plane where the second supporting body is located covers the fifth end face, and the orthographic projection of the second back film on the plane where the first back film is located covers the first end face.

[0024] An embodiment of the present invention further provides a display device, comprising a display module as described in any one of the above items.

[0025] At least one of the above technical solutions in the specific embodiment of the present invention has the following beneficial effects:

[0026] By adopting the display module described in the embodiment of the present invention, the first connection area between the first area and the bending area is set between the protective layer and the first back film, so that the first connection area is completely overlapped on the first back film, and the protective layer can completely cover the first connection area, which can enhance the connection stability at the connection position and reduce the stress caused by bending, thereby avoiding bending and fracture, causing the problem of bright lines. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A partial structural schematic diagram of a display module according to an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the cross-sectional structure of the display module according to an embodiment of the present invention at the connection part;

[0029] Figure 3 is a schematic plan view of a display panel in an embodiment of the present invention;

[0030] Figure 4 This is one of the structural schematic diagrams of the second support body in the display module according to the embodiment of the present invention;

[0031] Figure 5 This is a second structural schematic diagram of the second supporting body in the display module according to the embodiment of the present invention;

[0032] Figure 6 This is a third structural schematic diagram of the second support body in the display module according to an embodiment of the present invention;

[0033] Figure 7 This is the fourth structural schematic diagram of the second supporting body in the display module according to the embodiment of the present invention. DETAILED DESCRIPTION

[0034] In order to make the technical problems, technical solutions and advantages to be solved by the present invention more clear, a detailed description will be given below with reference to the accompanying drawings and specific embodiments.

[0035] In order to solve the problem that the curved display device in the prior art is prone to breakage at the bending position, thereby causing bright lines, an embodiment of the present invention provides a display module to ensure the connection reliability between the bending area and the panel area at the bending position of the display panel, so as to reduce the bending stress at the bending position, thereby avoiding bending breakage and causing bright line problems.

[0036] A display module according to one embodiment of the present invention is as follows: Figure 1 and Figure 2 As shown, including:

[0037] The display panel 100 includes a flexible substrate 101 and an inorganic material layer 102 located on the flexible substrate 101, wherein the inorganic material layer 102 includes a groove region 103 penetrating the substrate 101, and an organic material layer is filled in the groove region 103 to form a bending region 110 of the display panel;

[0038] The display panel 100 further includes a first region 120 located on one side of the bending region 110, and the first region 120 is a display region or a binding region; the contact region between the inorganic material layer on the first region 120 and the organic material layer on the bending region 110 forms a first connection region 1 (such as Figure 3 shown);

[0039] The first back film 200, the first region 120 is located on the first back film 200, at least a portion of the bending region 110 extends from the first end surface 210 of the first back film 200, and bends and extends in a direction away from the first end surface 210; the orthographic projection of the first connecting region 1 on the plane where the first back film 200 is located is located on the first back film 200;

[0040] The protection layer 300 covers the bending area 110 on the side of the first area 120 away from the first back film 200 , and extends to cover the entire first connection area 1 .

[0041] By adopting the display module described in the embodiment of the present invention, the orthographic projection of the first back film on the plane where the first area is located can cover the entire first connecting area. By setting the first connecting area between the first area and the bending area between the protective layer and the first back film, the first connecting area is entirely covered by the protective layer and is fully overlapped with the first back film. The connection reliability between the bending area and the panel area at the bending position of the display panel can be ensured to reduce the bending stress at the bending position, thereby avoiding bending fractures and causing bright line problems.

[0042] Optionally, the display panel 100 is formed as an OLED display structure, and the display area of ​​the display panel includes a plurality of pixel circuits distributed in an array and fabricated on a flexible substrate 101, each pixel circuit including a light-emitting unit and a driving unit for driving the light-emitting unit to emit light.

[0043] Specifically, in the display area, the driving unit made on the flexible substrate 101 includes a buffer layer, an active layer, a gate insulating layer, a gate, an interlayer insulating layer, a first flat layer, a source / drain layer and a second flat layer, and the light-emitting unit made on the driving unit includes a first electrode, a pixel defining layer, a light-emitting layer, a second electrode and a spacer layer. When the driving unit and the light-emitting unit of the display area are made on the flexible substrate 101, a buffer layer, a gate insulating layer and an interlayer insulating layer are made in other areas outside the display area at the same time, and the buffer layer, the gate insulating layer and the interlayer insulating layer are grooved at the position corresponding to the bending area, and filled with an organic material layer to form a bending area of ​​the display panel. In addition, the source / drain layer, the second flat layer and the spacer layer of the display area also extend to the bending area, and are successively located above the organic material layer at the groove. The second flat layer and the spacer layer are made of organic materials to meet the bendability requirements of the bending area. The source / drain layer is formed as a line connection layer connecting the display area and the binding area at the bending area.

[0044] Figure 2 FIG. 1 is a schematic diagram of a cross-sectional structure of a bending area 110 in one embodiment of the present invention. Figure 2 As shown, at the connection portion between the bending region 110 and the first region 120, a buffer layer 1011, a gate insulating layer 1022 and an interlayer insulating layer 1023 are sequentially formed on the flexible substrate 101, wherein the buffer layer 1011, the gate insulating layer 1022 and the interlayer insulating layer 1023 are all formed as inorganic material layers and are non-bendable. To achieve the bendability of the display module, a filling region is formed by etching a portion of the buffer layer 1011, the gate insulating layer 1022 and the interlayer insulating layer 1023, and an organic material is filled in the filling region to form a first organic material layer 111 at the bending region 110. In addition, a circuit connection layer 112, a second organic material layer 113 and an organic cover layer 114 are sequentially formed on the first organic material layer 111.

[0045] Specifically, in the bending area, the buffer layer 1011, the gate insulating layer 1022, the interlayer insulating layer 1023, the first organic material layer 111, the line connection layer 112, the second organic material layer 113 and the organic covering layer 114 are made of the same layer and material as the buffer layer, gate insulating layer, interlayer insulating layer, first flat layer, source / drain layer, second flat layer and spacer layer in the display area, respectively, which are not described in detail here.

[0046] Using this implementation structure, combined with Figure 2 and Figure 3As shown, at the bending area 110, the inorganic material layer on the flexible substrate 101 includes a groove area penetrating the flexible substrate 101, and the organic material layer is filled in the groove area to form the bending area of ​​the display panel; wherein, the contact area between the inorganic material layer of the first area 120 and the organic material layer of the bending area is formed as the first connection area 1; optionally, at the bending area 110, the contact area between the buffer layer 1011 and the first organic material layer 111 can be defined as the first connection area 1. Optionally, to ensure the stability of the connection, the entire contact area between the buffer layer 1011, the gate insulating layer 1022, the interlayer insulating layer 1023 and the first organic material layer 111 can also be defined as the first connection area.

[0047] On this basis, combined with Figure 1 and Figure 2 As shown, the bending region 110 includes a portion located in the filling region and directly made in the groove region, and also includes a portion located on both sides of the groove region, covering a portion of the flexible substrate 101, the buffer layer 1011, the gate insulating layer 1022 and the interlayer insulating layer 1023. Since the bending region 110 includes a first organic material layer 111, a second organic material layer 113 and an organic cover layer 114 stacked in the corresponding groove region, all of which are made of organic material layers, the bending requirements at this position can be met.

[0048] In the embodiment of the present invention, combined with Figure 1 As shown, the display module further includes a first support body 400, which is disposed on a side of the first back film 200 away from the first area 120;

[0049] The orthographic projections of the protection layer 300 and the first region 120 on the plane where the first support body 400 is located respectively cover the second end surface 410 of the first support body 400 .

[0050] According to this embodiment, the protective layer 300 covers the bending area 110, extending to cover the entire first connection area 1, and the protective layer 300 covers the second end face 410 in the plane where the first support body 400 is located. The protective layer 300 covers the connection position between the first area 120 and the bending area 110, and also covers the connection position between the first support body 400 and the first back film 200, so as to enhance the connection stability at the two connection positions and reduce the stress caused by bending at the two connection positions, thereby further effectively avoiding bending fractures and bright line problems.

[0051] Optionally, combined Figure 2As shown, the first connection area 1 is located between the first end surface 210 and the second end surface 410, and the vertical distance from the first end surface 210 to the first edge of the first connection area 1 is greater than the vertical distance from the second end surface 410 to the second edge of the first connection area;

[0052] The first edge is an edge of the first connection area 1 close to the first end surface 210 , and the second edge is an edge opposite to the first edge.

[0053] Combination Figure 3 As shown, the contact area between the buffer layer 1011 and the first organic material layer 111 can be defined as a first connection area 1, and the first connection area 1 can be formed as a surface structure inclined relative to the flexible substrate substrate 101, wherein the first connection area 1 is located between the first end surface 210 and the second end surface 410, and when determining the distance between the first end surface 210 and the second end surface 410 respectively, it is determined by the corresponding minimum distance.

[0054] In this embodiment, the first back film 200 covers the second end surface 410 of the first support body 400, so that the first support body 400 is retracted by an appropriate distance in the direction away from the bending area 110 compared to the first back film 200, and the first connection area 1 is arranged closer to the first support body 400, so as to utilize the position adjustment of the first support body 400 to make the stress concentration point at the bending area 110 away from the first connection area 1, so as to avoid fracture at the first area 120 and the bending area 110.

[0055] Combination Figure 1 As shown, in the embodiment of the present invention, the display panel further includes a second area 130 located on the other side of the bending area 110;

[0056] The display module also includes:

[0057] A second backing film 500, the second region 130 is disposed on the second backing film 500, and at least a portion of the bending region 110 extends from a fourth end surface 510 of the second backing film 500;

[0058] The second support body 600 is located on a side of the second backing film 500 away from the second region 130 , and is connected to the second backing film 500 .

[0059] In one embodiment, optionally, the first area 120 is one of the display area and the binding area, and the second area 130 is the other of the display area and the binding area.

[0060] In another implementation manner, optionally, both the first area 120 and the second area 130 may be display areas.

[0061] In addition, optionally, a preset angle is formed between the first area 120 and the second area 130 .

[0062] Optionally, the preset angle may be any angle greater than 0. In this embodiment, the bending area 110 connects the first area 120 and the second area 130, and the first area 120 and the second area 130 face different directions by utilizing the bending state of the bending area 110, so that the display module forms a curved display structure.

[0063] In one embodiment, optionally, the first area 120 is parallel to the second area 130. When both the first area 120 and the second area 130 are display areas, the display surface of the second area 130 and the display surface of the first area 120 face in opposite directions. By utilizing the bending area 110, the second area 130 is folded in a direction away from the display surface of the first area 120 compared to the first area 120, forming a folded display structure.

[0064] In addition, it should be noted that when manufacturing the display panel, the display area and the binding area can be manufactured simultaneously on the flexible substrate substrate 101, and the specific structure and manufacturing process will not be described in detail here.

[0065] In an embodiment of the present invention, optionally, when manufacturing a display panel, the entire display panel can be connected to a back film, and by making grooves at positions corresponding to the bending areas of the back film, dividing the back film into a first back film and a second back film, and then bending the back film at positions corresponding to the bending areas, a display module in a curved state can be made.

[0066] In the embodiment of the present invention, Figure 1 Combined with Figure 2 As shown, the contact area between the inorganic material layer on the second area 130 and the organic material layer on the bending area 110 forms a second connection area 2;

[0067] The protective layer 300 also extends to cover the entire second connection area 2 , and the orthographic projection of the second connection area 2 on the plane where the second back film 500 is located is located on the second back film 500 .

[0068] In this way, the orthographic projection of the second back film on the plane where the second area is located can cover the entire second connecting area. By setting the second connecting area between the second area and the bending area between the protective layer and the second back film, the entire area is covered by the protective layer and the second back film. The connection reliability between the bending area and the panel area at the bending position of the second area of ​​the display panel can be ensured to reduce the bending stress at the bending position, thereby avoiding bending fractures and causing bright line problems.

[0069] In addition, optionally, the second support body 600 includes a fifth end face 610 arranged near the bending area 110, and the orthographic projection of the protective layer 300 on the plane where the second support body 600 is located can cover the fifth end face 610. By extending the protective layer 300 to cover the entire first connection area 1, and the orthographic projection of the protective layer 300 on the plane where the second support body 600 is located covers the fifth end face 610, the protective layer 300 covers the connection position between the second area 130 and the bending area 110, and also covers the connection position between the second support body 600 and the second back film 500, so as to enhance the connection stability at the two connection positions between the second area 130 and the bending area 110, reduce the stress caused by bending at the two connection positions, and effectively avoid bending fractures and bright line problems.

[0070] In the embodiment of the present invention, the first support body 400 and the second support body 600 are disposed between the first back film 200 and the second back film 500 to support the first back film 200 and the second back film 500, and the required spacing distance is maintained between the first area 120 and the second area 130 of the display panel 100.

[0071] In the embodiment of the present invention, optionally, the positional relationship between the first connection area 1, the first back film 200, the first support body 400 and the protective layer 300 can be the same as or different from the positional relationship between the second connection area 2, the second back film 500, the second support body 600 and the protective layer 300.

[0072] Optionally, combined Figure 1 As shown, in the embodiment of the present invention, at the connection position between the first area 120 and the bending area 110, the first connection area 1 is located between the first end face 210 of the first back film 200 and the second end face 410 of the first support body 400, and the vertical distance L1 from the second end face 410 to the second edge of the first connection area 1 is smaller than the vertical distance L2 from the first end face 210 to the first edge of the first connection area 1; wherein the first edge is the edge of the first connection area 1 close to the first end face 210, and the second edge is the opposite edge of the first edge, that is, the second edge is the edge of the first connection area 1 close to the second end face 410.

[0073] Optionally, a vertical distance L3 between the second end surface 410 and the first end surface 210 is greater than 0.35 mm, and a vertical distance L2 between the first end surface 210 and the first edge of the first connection region 1 is greater than 0.2 mm.

[0074] Optionally, the vertical distance L3 between the second end surface 410 and the first end surface 210 is greater than 0.35 mm and less than or equal to 0.6 mm. The vertical distance L2 between the first end surface 210 and the first edge of the first connection area 1 is greater than 0.2 mm and less than or equal to 0.6 mm.

[0075] Additionally, optionally, Figure 1 As shown, the protective layer 300 includes a sixth end face 310 disposed on the first region 120 and away from the bending region 110, wherein a vertical distance L5 between the sixth end face 310 and the first end face 210 is greater than 0.4 mm, and optionally, the vertical distance L5 is also less than or equal to 0.7 mm.

[0076] By adopting the above-mentioned implementation structure, by making the first support body 400 retract inward by an appropriate distance compared to the first area 120 in the direction away from the bending area 110, and the overlap of the bending area 110 on the first back film 200 has an appropriate size, and the protective layer 300 covers the first area 120 with an appropriate size, the connection reliability between the connecting part and the panel part can be ensured, so as to reduce the bending stress at the bending position, avoid bending fractures, and cause bright line problems.

[0077] In addition, at the connecting position between the second region 130 and the bending region 110, the orthographic projection of the second back film 500 on the plane where the second support body 600 is located covers the fifth end face 610, and the vertical distance L6 from the fifth end face 610 to the first end face 210 is smaller than the vertical distance L3 from the second end face 410 to the first end face 210; wherein, the fourth end face 510 of the second back film 500 is close to the bending portion of the bending region 110, and the orthographic projection of the first end face 210 on the plane where the second back film 500 is located is located between the fourth end face 510 and the fifth end face 610.

[0078] Optionally, at the connection position between the second area 130 and the bending area 110 , the protective layer 300 covers the entire second connection area 2 , and the second connection area 2 can completely overlap with the second back film 500 to ensure a stable connection at the second connection portion 230 .

[0079] In addition, with this implementation structure, the second support body 600 is retracted inwards in a direction away from the curved portion 220 compared to the second back film 500, and the support area of ​​the second support body 600 for the second region 130 is larger than the support area of ​​the first support body 400 for the first region 120, so as to effectively ensure the connection at the second connection area 2 is stable and avoid bending and breaking, which may cause bright line problems. In the embodiment of the present invention, the display module may further include a polarizer 700 and a cover plate 800 disposed on the display area of ​​the display panel. For example, when the second region 130 is the display area, Figure 1 As shown, a polarizer 700 and a cover plate 800 are sequentially arranged on the second area 130 .

[0080] In the display module described in the embodiment of the present invention, when the second area 130 is a display area, the second support body 600 may be a multi-layer structure, which can not only support the display area but also provide heat dissipation.

[0081] One implementation method, such as Figure 4 As shown, from the second region 130 to the direction away from the second region 130, the second support body 600 includes a connection layer 601, a buffer layer 602 and a heat dissipation layer 603 which are sequentially stacked. For example, the connection layer 601 may be an optical adhesive or a grid adhesive, the buffer layer 602 may include a foam material, and the heat dissipation layer 603 may be a metal heat dissipation layer, such as made of at least one of copper, AL and AL alloy materials.

[0082] Another embodiment, such as Figure 5 As shown, from the second region 130 to the direction away from the second region 130, the second support body 600 includes a connection layer 601, a buffer layer 602, a graphite layer 605 and a heat dissipation layer 603 stacked in sequence. Compared with the above embodiment, the added graphite layer 605 can achieve a more effective heat dissipation effect.

[0083] Another embodiment, as Figure 6 As shown, from the second region 130 to the direction away from the second region 130, the second support body 600 includes a connecting layer 601 and a metal support layer 606. The metal support layer 606 can be made of elastic metal, such as AL or AL alloy material, which not only plays a supporting role but also has a heat dissipation effect.

[0084] Another embodiment, as Figure 7 As shown, from the second region 130 to the direction away from the second region 130, the second support body 600 includes a connecting layer 601, a buffer layer 602 and a support layer 607. In this embodiment, the support layer 607 is used to play a supporting role. Optionally, the support layer 607 can be made of stainless steel.

[0085] It should be noted that the specific implementation structure of the second support body 600 is only an example, and is not limited thereto, and will not be described one by one here.

[0086] Optionally, the cover plate 800 may be made of, but is not limited to, flexible glass and organic materials. The organic material may include at least one of polyethylene terephthalate (PET) material, polyimide (PI) material and PEMMA material.

[0087] In addition, combined Figure 1 As shown, the cover plate 800 disposed on the second area 130 covers the second area 130 in its orthographic projection on the plane where the second area 130 is located, and further extends to the bending area 110 , thereby being able to cover the entire bending area 110 .

[0088] By adopting the display module described in the embodiment of the present invention, the relative position relationship between the back film, the support body, the protective layer, the first connection area and the second connection area is set to enhance the connection stability at the connection position and reduce the stress caused by bending. The combination of the two can avoid bending and breaking, which causes the problem of bright lines.

[0089] Using the display module described in the embodiment of the present invention, combined with Figure 2 As shown, the display module is an OLED display module. During the manufacturing process, the manufacturing process of the usual display module can be adopted. The driving unit and the light-emitting unit of the OLED display module are sequentially manufactured on the flexible substrate 101. After the active layer, gate layer and source / drain layer of the driving unit are manufactured, and the interlayer insulating layer is manufactured on the source / drain layer, the buffer layer 1011, the gate insulating layer 1022 and the interlayer insulating layer 1023 can be etched in the non-display area to form a filling area. The organic material is filled in the filling area to form the first organic material layer 111 of the bending area 110. Then the light-emitting unit is manufactured. Through the manufacturing process of the light-emitting unit, the circuit connection layer 112, the second organic material layer 113 and the organic covering layer 114 are manufactured above the first organic material layer 111. The manufactured display panel is bonded and connected to the back film, and a groove is made at the position of the back film corresponding to the bending area. The display panel is bent at the groove, and the display panel can be manufactured as shown in the figure. Figure 1 As shown, the display module is bent or folded.

[0090] The embodiment of the present invention further provides a display device, comprising a display module according to any of the above embodiments. Figures 1 to 7 , and referring to the above detailed description, those skilled in the art should be able to understand the specific structure of the display device using the display module described in the embodiment of the present invention, which will not be described in detail here.

[0091] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary personnel in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A display module, characterized in that: include: A display panel, wherein the display panel is an OLED display panel, comprising a flexible substrate and an inorganic material layer located on the flexible substrate, wherein the inorganic material layer comprises a grooved area penetrating to the substrate, and an organic material layer is filled in the grooved area to form a bending area of ​​the display panel; The display panel further includes a first area located on one side of the bending area, the first area being a display area or a binding area; a contact area between the inorganic material layer on the first area and the organic material layer on the bending area forms a first connection area; A first back film, wherein the first region is located on the first back film, and at least a portion of the bent region extends from a first end surface of the first back film and bends and extends in a direction away from the first end surface; and an orthographic projection of the first connecting region on a plane where the first back film is located is located on the first back film; a protective layer, on a side of the first region facing away from the first backing film, covering the bending region and extending to cover the entire first connecting region; Wherein, the display module further comprises a first support body, which is arranged on a side of the first back film away from the first area; The orthographic projections of the protective layer and the first region on the plane where the first support body is located respectively cover the second end surface of the first support body; the first connection area is located between the first end surface and the second end surface, and the vertical distance from the first end surface to the first edge of the first connection area is greater than the vertical distance from the second end surface to the second edge of the first connection area; The first edge is an edge of the first connection area close to the first end surface, and the second edge is an edge opposite to the first edge.

2. The display module according to claim 1, characterized in that: A vertical distance between the second end surface and the first end surface is greater than 0.35 mm, and a vertical distance between the first end surface and an edge of the first connection area close to the first end surface is greater than 0.2 mm.

3. The display module according to claim 1, characterized in that: The protection layer includes a third end surface arranged above the first area and away from the bending area, wherein a vertical distance between the third end surface and the first end surface is greater than 0.4 mm.

4. The display module according to claim 1, characterized in that: The display panel further includes a second area located on the other side of the bending area; The display module also includes: a second backing film, wherein the second region is disposed on the second backing film, and at least a portion of the bent region extends from a fourth end surface of the second backing film; The second support body is located on a side of the second backing film away from the second region and is connected to the second backing film.

5. The display module according to claim 4, characterized in that: The first area is one of a display area and a binding area, and the second area is the other of the display area and the binding area.

6. The display module according to claim 4, characterized in that: The contact area between the inorganic material layer on the second area and the organic material layer on the bending area forms a second connection area; The protective layer also extends to cover the entire second connection area, and the orthographic projection of the second connection area on the plane where the second back film is located is located on the second back film.

7. The display module according to claim 4, characterized in that: The second support body includes a fifth end face arranged close to the bending area, wherein the orthographic projection of the first back film on the plane where the second support body is located covers the fifth end face, and the orthographic projection of the second back film on the plane where the first back film is located covers the first end face.

8. A display device, characterized in that: A display module comprising any one of claims 1 to 7.

Citation Information

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