Display module and display device

Abstract

The application discloses a display module and a display device. The display module comprises a flexible display panel, the flexible display panel comprises a main body area and an edge area, the edge area is curved to form a curved inner surface relative to one side of the main body area; a support is fixedly arranged on one side of the flexible display panel close to the curved inner surface, the support comprises oppositely arranged first and second support surfaces, the first support surface is matched with the shape of the curved inner surface, the second support surface is provided with an alignment mark, the support has a cutting edge arranged around part of the edge area, and the support is fixedly connected with the flexible display panel based on the alignment mark and / or the cutting edge is cut based on the alignment mark.

Description

Technical Field

[0001] This application generally relates to the field of display technology, and specifically to a display module and display device. Background Technology

[0002] Organic light-emitting diode (OLED) flexible panels have advantages such as self-illumination, wide color gamut, high contrast, and thinness, and are widely used in the field of flexible wearable devices. Due to the better user experience offered by circular wearable devices (such as smartwatches), they are gradually becoming the mainstream form.

[0003] For flexible OLED display devices, support components are generally set on the flexible panel to support and protect the flexible panel. However, the support and protection of the screen is insufficient, and collapse, warping, and detachment are prone to occur at the display hole, affecting product quality and even the product's appearance. Summary of the Invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a display module and display device that can improve the alignment accuracy of the flexible display panel and the support member, improve the support strength, and thus improve the quality of the display module.

[0005] In a first aspect, this application provides a display module, including:

[0006] A flexible display panel, the flexible display panel including a main area and an edge area, the edge area being bent to one side relative to the main area to form a curved inner surface;

[0007] A support member is fixedly disposed on the side of the flexible display panel near the curved inner surface. The support member includes a first support surface and a second support surface disposed opposite to each other. The first support surface is adapted to the shape of the curved inner surface. An alignment mark is provided on the second support surface. The support member has a cut edge disposed around a portion of the edge area. The support member is fixedly connected to the flexible display panel based on the alignment mark and / or the cut edge is formed by cutting based on the alignment mark.

[0008] Optionally, the flexible display panel and the support member are fixedly connected by an adhesive layer;

[0009] The cross-sectional length of the first support surface in a first direction perpendicular to the flexible display panel is less than or equal to the cross-sectional length of the curved inner surface in the direction perpendicular to the flexible display panel.

[0010] Optionally, the cross-sectional shape of the main body area in a first direction perpendicular to the flexible display panel is curved;

[0011] The height of the curved inner surface along the first direction gradually decreases from the center of the main body area to the edge area.

[0012] Optionally, the second support surface is a flat surface;

[0013] The flexible display panel has a circular cross-section in a second direction parallel to the second support surface.

[0014] Optionally, the cut edge is disposed around the center of the flexible display panel, and the extension direction of the cut edge is parallel to the first direction.

[0015] Optionally, the alignment mark is aligned with the center of the flexible display panel along the first direction;

[0016] The support member is symmetrically arranged about the alignment mark, and the height of the support member along the first direction gradually decreases from the alignment mark to the cutting edge.

[0017] Optionally, it further includes a flexible circuit assembly electrically connected to the display panel, the flexible circuit assembly being bent from the flexible display panel to the second support surface and fixed thereon.

[0018] Optionally, the alignment mark is recessed from the second support surface to the side of the first support surface, and the shape of the alignment mark is one of the following: circle, ring, cross, square, and T-shape.

[0019] Optionally, the support is made of a polymer organic material, and the alignment mark is integrally formed with the support.

[0020] Secondly, this application provides a display device, including a display module as described above.

[0021] The technical solutions provided by the embodiments of this application may include the following beneficial effects:

[0022] The display module provided in this application improves the mechanical strength of the flexible display module by providing a support member on the back of the flexible display panel; and improves the bonding accuracy between the curved inner surface and the surface of the support member by setting alignment marks on the support member and bonding the flexible display panel with the alignment marks, thereby further improving the mechanical strength of the flexible display module. Attached Figure Description

[0023] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0024] Figure 1A schematic diagram of the structure of a display module provided for an embodiment of this application;

[0025] Figure 2 A cross-sectional schematic diagram of a display module provided for an embodiment of this application;

[0026] Figure 3 A schematic diagram of the cutting of a support member provided for an embodiment of this application;

[0027] Figure 4 A schematic diagram of the cutting of a support member provided for an embodiment of this application;

[0028] Figure 5 A cross-sectional schematic diagram of a display module provided for an embodiment of this application;

[0029] Figure 6 A schematic diagram of the structure of a display module provided for an embodiment of this application;

[0030] Figure 7 A schematic diagram of the cutting of a support member provided for an embodiment of this application;

[0031] Figure 8 A schematic diagram of the structure of a support member provided for an embodiment of this application;

[0032] Figure 9 A schematic diagram of the cutting of a support member provided for an embodiment of this application;

[0033] Figure 10 A cross-sectional schematic diagram of a display module provided for an embodiment of this application;

[0034] Figure 11 This is a cross-sectional schematic diagram of a display module provided for an embodiment of this application. Detailed Implementation

[0035] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0036] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0037] Please see details. Figure 1 This application provides a display module, including:

[0038] A flexible display panel 100 includes a main area 110 and an edge area 120. The edge area 120 is bent to one side relative to the main area 110 to form a curved inner surface 130.

[0039] A support member 200 is fixedly disposed on the flexible display panel 100 near the curved inner surface 130. The support member 200 includes a first support surface 210 and a second support surface 220 disposed opposite to each other. The first support surface 210 is adapted to the shape of the curved inner surface 130. The second support surface 220 is provided with an alignment mark 300. The support member 200 has a cut edge 400 disposed around a portion of the edge area 120. The support member 200 is fixedly connected to the flexible display panel 100 based on the alignment mark 300 and / or the cut edge 400 is formed by cutting based on the alignment mark 300.

[0040] The flexible display panel 100 in this embodiment can be an active-matrix display panel, such as an organic light-emitting diode (OLED) display panel, an active-matrix organic light-emitting diode (AMOLED) display panel, a passive-matrix organic light-emitting diode (AMOLED) display panel, a quantum dot organic light-emitting diode (QLED) display panel, etc. The flexible display panel 100 can also be a liquid crystal display panel. In this embodiment, the flexible display panel 100 can adopt various structures found in the prior art, and this application is not limited in this regard.

[0041] In one embodiment of this application, the flexible display panel 100 includes a backplane, a thin-film transistor array layer, an OLED device layer, and a thin-film encapsulation layer. The OLED device layer further includes various functional layers such as a hole transport layer, an organic light-emitting layer, and an electron transport layer. The thin-film encapsulation layer completely covers the OLED device layer to prevent the OLED device layer from being damaged by environmental factors and external forces.

[0042] like Figure 2As shown, the display module also includes a polarizer 101 and a glass cover 102 disposed on the flexible display panel 100. The glass cover is bonded to the flexible display panel 100 by an optical adhesive layer 103. The display device in this embodiment may also include other structures depending on different application devices and application scenarios, and this application does not limit this. OCA (optical clear adhesive) is an optical adhesive, also known as optical transparent adhesive; OCA is made by making optical acrylic adhesive without a substrate, and then bonding a release film to the top and bottom layers. It is a double-sided adhesive tape without a substrate material. It is set as needed in different embodiments.

[0043] In this embodiment, the back panel of the flexible display panel 100 is a flexible substrate. Due to its static or dynamic bending characteristics, it enables the display device to achieve a narrow bezel design by bending the flexible display panel 100 to the side or back of the support member 200.

[0044] In this embodiment of the application, the first direction is defined as the direction perpendicular to the flexible display panel 100, and the second direction is the direction perpendicular to the first direction. In this embodiment of the application, the first direction can be the up-down direction, and the second direction can be the horizontal direction.

[0045] In this embodiment, the second support surface 220 is a flat surface; the second support surface 220 extends along a second direction.

[0046] In this embodiment, by setting the second support surface 220 as a flat surface, it facilitates providing a reference surface for the fixing process between the support member 200 and the flexible display panel 100, improving the bonding accuracy between the flexible display panel 100 and the support member 200; it also facilitates providing a reference surface for the cutting process of the support member 200 through the second support surface 220, improving the accuracy of the cutting edge 400, and allowing for various accuracy tests, such as bonding accuracy testing or die-cutting accuracy testing. Furthermore, in this embodiment, the second support surface 220 provides a flat connecting surface for the display module as a whole to connect with the frame or other components, facilitating the fixing of the display module.

[0047] Figure 3 The diagram shows a structural schematic of a support member 200 without alignment marks 300 during preforming. Figure 3 Image I(A) shows a top view of support member 200. Figure 3 Figure I(B) shows a cross-sectional view of support component 200. For example, the dimensions of support component 200 formed by injection molding will be larger, and the center of the cast product will be O. During the die-cutting process, there will be differences in die-cutting precision. The center of the die-cutting blade will be O'. The die-cut product will look like... Figure 3As shown in II(A) and II(B), the difference in die-cutting accuracy is the distance OO'. In this scheme, the distance OO' is too large, and it is impossible to actually monitor and detect the distance OO'. Insufficient cutting accuracy results in a thinner overall edge thickness for the support component 200. Without alignment marks 300, only the maximum thickness and contour of the support component 200 can be controlled during accuracy testing.

[0048] Figure 4 The diagram shows a structural schematic of a support member 200 with alignment marks 300 during preforming, as shown below. Figure 4 Image I(A) shows a top view of support member 200. Figure 4 Figure I(B) shows a cross-sectional view of the support member 200. After being cut using a die-cutting process, the resulting cut edge 400 is as shown in Figure I(B). Figure 4 As shown in II(A) and II(B), it can be seen that the cutting edge 400 can be formed by setting the alignment mark 300, which can significantly improve the cutting accuracy.

[0049] The flexible display panel 100 and the support member 200 are fixedly connected by an adhesive layer 500; in this embodiment, the adhesive layer 500 can be foam adhesive, OCA adhesive, etc.

[0050] In one embodiment, the flexible display panel 100 has a circular cross-section in a second direction parallel to the second support surface 220.

[0051] It should be noted that the shape of the flexible display panel 100 is not limited in this embodiment. The cross-sectional shape of the flexible display panel 100 parallel to the second direction can be circular, square, pentagonal, etc., and different settings can be made in different embodiments according to different application scenarios. In this embodiment, the flexible display panel 100 is symmetrical, and the flexible display panel 100 has a center O1. The flexible display panel 100 is symmetrically arranged on both sides about the center O1. In this embodiment, the cross-sectional shape of the flexible display panel 100 is circular as an example for illustrative purposes.

[0052] In the embodiments of this application, the main body region 110 and the edge region 120 refer to two integrally formed parts of the flexible display panel 100. For example, the flexible display panel 100 with the main body region 110 and the edge region 120 in the embodiments of this application is formed by bending the corners of the flexible display panel 100 during the manufacturing process. The main body region 110 has a circular cross-sectional shape, and the edge region 120 is disposed around the main body region 110, the cross-sectional shape of which is annular.

[0053] It should be understood that the bending direction of the edge area 120 refers to the direction away from the display surface of the main body area 110, which is the side of the main body area 110 or the flexible display panel 100 that displays the image. The bending angle of the bending area is 90° to 180°, for example, the bending angle of the bending area is 90°, 100°, 120°, 160° and 180°, etc.

[0054] For example, for a flexible display panel 100 with a square cross-section, the four side edges of the flexible display panel 100 are bent by 180° and bent onto the second support surface 220 of the support member 200, so that the first support surface 210, the cut edge 400 and the second support surface 220 of the support member 200 are all covered by the same screen.

[0055] Optionally, the cross-sectional shape of the main body area 110 in a first direction perpendicular to the flexible display panel 100 is curved.

[0056] It should be noted that the shape of the main body area 110 is not limited in the embodiments of this application. This application shows the main body area 110 as curved; however, in other embodiments, the shape of the main body area 110 can also be planar, such as... Figure 5 As shown. In this embodiment, the flexible display panel 100 naturally transitions into an arc-shaped curve at the arc-shaped corner between the main body area 110 and the edge area 120. Therefore, the inner surface of the formed flexible display panel 100 is a curved inner surface 130. It can be understood that the curved inner surface 130 in this embodiment includes the entire area of ​​the main body area 110 and the edge area 120.

[0057] In this embodiment, the flexible display panel 100 includes a display surface opposite to the curved inner surface 130. In this embodiment, the cross-sectional shape of the main body area 110 in the first direction is curved. This can include the cross-sectional shape of the main body area 110 on the curved inner surface 130 being curved, or the cross-sectional shape of the main body area 110 on the display surface being curved. These can be configured as needed in different embodiments.

[0058] The shape of the first support surface 210 on the support member 200 is adapted to the shape of the curved inner surface 130. The first support surface 210 includes a first support area corresponding to the main body area 110 and a second support area corresponding to the edge area 120. The first support area is used to support the main body area 110, and the shape of the first support area is adapted to the cross-sectional shape of the curved inner surface 130 corresponding to the main body area 110. The second support area is used to support the edge area 120, and the shape of the second support area is adapted to the cross-sectional shape of the curved inner surface 130 corresponding to the edge area 120.

[0059] It should be noted that the bending radius of the main body area 110 and the edge area 120 is not limited in this embodiment. In different embodiments, the bending radius of the main body area 110 and the edge area 120 may be the same or different.

[0060] The cross-sectional shapes of the curved inner surface 130 corresponding to the main body region 110 and the edge region 120 are both curved, and the height of the curved inner surface 130 along the first direction gradually decreases from the center O1 of the main body region 110 to the edge region 120.

[0061] Similarly, the alignment mark 300 is aligned with the center O1 of the flexible display panel 100 along the first direction; the support member 200 is symmetrically arranged about the alignment mark 300, and the height of the support member 200 along the first direction gradually decreases from the alignment mark 300 to the cutting edge 400.

[0062] It should be noted that, in this embodiment of the application, the height of the support member 200 is the distance from the first support surface 210 to the second support surface 220, and the height of the curved inner surface 130 is the distance from the curved inner surface 130 to the plane where the second support surface 220 is located.

[0063] The cross-sectional length of the first support surface 210 in a first direction perpendicular to the flexible display panel 100 is less than or equal to the cross-sectional length of the curved inner surface 130 in a direction perpendicular to the flexible display panel 100.

[0064] In this embodiment, the cross-sectional length is the arc length of the curve of the cross-sectional shape. In this embodiment, the cross-sectional length of the first support surface 210 is less than or equal to the cross-sectional length of the curved inner surface 130, that is, the orthographic projection of the first support surface 210 on the second support surface 220 is located within the orthographic projection range of the curved inner surface 130 on the second support surface 220 or the boundary of the orthographic projection coincides. Based on this, a narrow bezel can be achieved by reducing the cross-sectional length of the support member 200. Of course, in different embodiments, the cross-sectional length of the first support surface 210 can be adjusted as needed to achieve support for various positions of the flexible display panel 100. Figure 1 The diagram shows that the cross-sectional length of the first support surface 210 is equal to the cross-sectional length of the curved inner surface 130. Figure 6 The diagram shows that the cross-sectional length of the first support surface 210 is equal to the cross-sectional length of the curved inner surface 130.

[0065] In this embodiment, the flexible display panel 100 has a side edge, which is located at the end of the edge region 120 away from the main body region 110. In this embodiment, the height of the side edge from the second support surface 220 is less than the side length of the cut edge 400. By controlling the thickness of the support member 200, bonding operations, such as bonding and rolling, can be easily performed using the support member 200. In addition, by controlling the thickness of the support member 200, the support strength of the support member 200 can be improved. It can be understood that, with the same cross-sectional length of the first support surface 210, the longer the side length of the cut edge 400, the larger the volume of the support member 200, the higher the support strength, and the higher the strength of the resulting display module.

[0066] In this embodiment, to facilitate the forming of the support member 200 to create a first support surface 210 with high precision, and to ensure complete fit between the first support surface 210 and the curved inner surface 130, the first support surface 210 and the second support surface 220 are connected at the edge of the second support surface 220 on the pre-formed support member 200. In this embodiment, the first support surface 210 is cut to control the cross-sectional length of the first support surface 210; the second support surface 220 is cut based on the alignment mark 300 to facilitate control of the cutting precision and to form a cutting edge 400 of a preset length.

[0067] In this embodiment, the cutting edge 400 is disposed around the center O1 of the flexible display panel 100, and the extending direction of the cutting edge 400 is parallel to the first direction. When forming the cutting edge 400, the second support surface 220 can be fixed on the work platform, and the cutting can be performed after alignment using the alignment mark 300 on the second support surface 220.

[0068] It should be noted that the alignment mark 300 provided on the second support surface 220 in this embodiment can be used for alignment when the flexible display panel 100 is attached to the support member 200, and can also be used for alignment when the support member 200 is cut with the cutting edge 400. At the same time, it can also be used for various precision detection programs of the display module.

[0069] Optionally, such as Figure 7 As shown, Figure 7 (A) is a top view of the support member 200, and (B) is a cross-sectional view of the support member 200. The alignment mark 300 is recessed from the second support surface 220 toward the first support surface 210. The shape of the alignment mark 300 can be one of a circle, annular, cross-shaped, square, or T-shaped. In this embodiment, the alignment mark 300 may also have a center O1, which coincides with the center O1 of the flexible display panel 100. The shape of the alignment mark 300 is not limited in this embodiment and can be set as needed in different embodiments.

[0070] In this embodiment, the alignment mark 300 is in the form of a groove. This groove design does not affect the flatness of the second support surface 220, facilitating other processing operations. For example, the alignment mark 300 can be formed on an injection mold, where the silicone injection mold has high precision, reaching ±0.05mm.

[0071] Optionally, the support member 200 is made of a polymeric organic material, and the alignment mark 300 is integrally formed with the support member 200. The support member 200 can be made of, but is not limited to, polyethylene terephthalate (PET), polyimide, polyurethane, silicone, or rubber. Of course, in other embodiments, the alignment mark 300 can be formed in other ways, and this application is not limited to this; for example, the alignment mark 300 can be formed by fitting the center point O1 of the outer contour of the support member 200.

[0072] In this embodiment, the size of the alignment mark 300 is not limited, as long as it can be identified by the identification device in each process. For example, on the support member 200, the permissible groove area is region D, and the boundary thickness of region D is d. The groove depth is h, the groove length is b, and the width is c. Generally, the design requirements of b and c are that they can be identified by the identification device. For example, 4mm≤b≤8mm, c≥0.2mm, groove depth h≥0.1mm, and hd≥0.1mm, to prevent the thinnest thickness of the support member 200 from being less than 0.1mm after grooving, which could cause product failure.

[0073] This application also illustrates various different shapes of the alignment marker 300 in its embodiments, such as Figure 8 As shown, where, Figure 8 (A) The groove width c2 of the middle annular ring is ≥ 0.2 mm. Figure 8 (B) The width of the square slot c3 is ≥ 0.4 mm. Figure 8 (C) The T-shaped slot width c4 is ≥ 0.2 mm.

[0074] Additionally, it is worth noting that this application embodiment does not limit the alignment mark 300's center O1 to being aligned with the flexible display panel 100's center O1. In different embodiments, the position of the alignment mark 300 can be adjusted as needed. For example, Figure 9 The image shows a method for setting alignment marks 300 on a rectangular support member 200. Figure 9 (A) is a top view of the support member 200, and (B) is a cross-sectional view of the support member 200. The alignment mark 300 is not aligned with the center O of the support member 200 or the center O1 of the flexible display panel 100. After image recognition of the alignment mark 300 by the recognition device, the boundary distances a1 and a2 of the cutting edge 400 can be calculated, thereby controlling the cutting accuracy. In different embodiments, the position of the alignment mark 300 is determined by its ability to be recognized by the recognition device.

[0075] In another embodiment of this application, such as Figure 10 and Figure 11 As shown, the display module also includes a flexible circuit assembly 600 electrically connected to the display panel. The flexible circuit assembly 600 is bent from the flexible display panel 100 and fixed to the second support surface 220.

[0076] The flexible display panel 100 also has a circuit connection terminal at the edge of the edge region 120. This circuit connection terminal is used to connect with components such as FPC (Flexible Printed Circuit) so that the flexible display panel 100 can display the images and information transmitted by the FPC. It is understood that in different embodiments, the flexible circuit component 600 may also adopt other configuration methods in the prior art.

[0077] The edge region 120 includes a fan-out area. It should be noted that when the fan-out area is bent, the display substrate with signal lines and other structures is also bent; that is, the structures in the fan-out area are also bent to the back side of the display substrate. It should be noted that in this embodiment, the bending radius of the side of the flexible display panel 100 where the fan-out area is located may be different from the bending radius of the edge region 120 at other locations, and this embodiment does not limit this.

[0078] In addition, in different embodiments, the display device may employ an outward bending design to bend a portion of the flexible display panel 100 onto the second support surface 220, or to bend a portion of the flexible display panel 100 onto any height position of the cut edge 400. This application does not limit this, and the flexible circuit assembly 600 on the edge region 120 may be bent onto the second support surface 220.

[0079] In this embodiment, the flexible circuit assembly 600 on the edge area 120 of the flexible display panel 100 is bent along the arc surface of the support member 200 to ensure balanced force on the edge portion and prevent circuit breakage on the edge portion. It is understood that in this embodiment, the flexible circuit assembly 600 may be attached to the cut edge 400, or a gap may be provided between it and the cut edge 400. Adjustments may be made in different embodiments based on the bending radius of the flexible circuit assembly 600, etc., and this application does not limit this.

[0080] Based on the same inventive concept, this application provides a display device, including a display module as described above.

[0081] The display devices described in this application include, but are not limited to, wearable devices. Wearable devices come in many types, and most are portable accessories with some computing capabilities, capable of connecting to mobile phones and various terminals. Mainstream product forms include wristbands (such as watches and bracelets), foot-supported devices (such as shoes, socks, or other leg-wearing products), head-supported devices (such as glasses, helmets, or headbands), as well as various non-mainstream product forms such as smart clothing, backpacks, canes, and accessories. The electronic devices in the embodiments of this application can be televisions, or display devices with display functions such as PCs, smartphones, tablets, e-book readers, MP3 (Moving Picture Experts Group Audio Layer III) players, MP4 (Moving Picture Experts Group Audio Layer IV) players, and portable computers.

[0082] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0083] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0084] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for descriptive purposes only and is not intended to limit the invention. Terms such as “set” appearing herein can refer to either a component being directly attached to another component or a component being attached to another component via an intermediary. A feature described in one embodiment herein may be applied, alone or in combination with other features, to another embodiment, unless that feature is not applicable in that other embodiment or is otherwise stated.

[0085] The present invention has been described through the above embodiments; however, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit the present invention to the described embodiments. Those skilled in the art will understand that many variations and modifications can be made based on the teachings of the present invention, and all such variations and modifications fall within the scope of protection claimed by the present invention.

Claims

1. A display module, characterized in that, include: A flexible display panel, the flexible display panel including a main area and an edge area, the edge area being bent to one side relative to the main area to form a curved inner surface; A support member is fixedly disposed on the side of the flexible display panel near the curved inner surface. The support member includes a first support surface and a second support surface disposed opposite to each other. The first support surface is adapted to the shape of the curved inner surface, and the second support surface is a flat surface. The cross-sectional length of the first support surface in a first direction perpendicular to the flexible display panel is smaller than the cross-sectional length of the curved inner surface in a direction perpendicular to the flexible display panel; The second support surface is provided with alignment marks, the support member has a cut edge provided around a portion of the edge area, the support member is fixedly connected to the flexible display panel based on the alignment marks and / or the cut edge is formed by cutting based on the alignment marks; The alignment mark is aligned with the center of the flexible display panel along the first direction; The support is symmetrically arranged about the alignment mark.

2. The display module according to claim 1, characterized in that, The flexible display panel and the support are fixedly connected by an adhesive layer.

3. The display module according to claim 1, characterized in that, The cross-sectional shape of the main body area in the first direction perpendicular to the flexible display panel is curved; The height of the curved inner surface along the first direction gradually decreases from the center of the main body area to the edge area.

4. The display module according to claim 3, characterized in that, The flexible display panel has a circular cross-section in a second direction parallel to the second support surface.

5. The display module according to claim 4, characterized in that, The cut edge is arranged around the center of the flexible display panel, and the extension direction of the cut edge is parallel to the first direction.

6. The display module according to claim 4, characterized in that, The height of the support member along the first direction gradually decreases from the alignment mark toward the cutting edge.

7. The display module according to claim 1, characterized in that, It also includes a flexible circuit assembly electrically connected to the display panel, the flexible circuit assembly being bent from the flexible display panel to the second support surface and fixed thereon.

8. The display module according to claim 1, characterized in that, The alignment mark is recessed from the second support surface to the side of the first support surface, and the shape of the alignment mark is one of the following: circle, ring, cross, square, and T-shape.

9. The display module according to claim 1, characterized in that, The support is made of a high-molecular organic material, and the alignment mark is integrally formed with the support.

10. A display device, characterized in that, Includes the display module as described in any one of claims 1-9.

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