Display module and display device

Abstract

This application provides a display module and a display device, relating to the field of display technology. The display module includes at least one display panel, and the display panel includes an auxiliary structure located at the edge of a light-transmitting cover layer. The auxiliary structure is used to optimize and guide the light emitted from the edge of the light-transmitting cover layer, so that the light emitted from the edge of the light-transmitting cover layer is more biased towards the direction parallel to the plane of the light-transmitting cover layer. This improves the problem in the prior art where the light emitted from the edge of the light-transmitting cover layer is more concentrated towards the light emission direction of the display panel, thereby improving the problem of bright lines at the edges of the display panel during display, and also improving the problem of bright lines between adjacent display panels due to the high brightness at the splicing gap, ultimately improving the display effect of the display device.

Description

Technical Field

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

[0002] With the continuous development of display technology, the manufacturing technology of display screens has become increasingly mature. Large-size screens are widely used in various indoor and outdoor occasions. Large-size splicing displays are increasingly favored by users due to their portability, low failure rate, long lifespan, and low power consumption. However, existing splicing displays have gaps between adjacent display panels. When the splicing display is working, the brightness at these gaps is relatively high, affecting the display effect. Summary of the Invention

[0003] In view of the above problems, this application provides a display module and display device to improve the display effect of the display device. The specific solution is as follows:

[0004] This application provides a display module, the display module including at least one display panel, the display panel including:

[0005] substrate;

[0006] A light-emitting functional layer, wherein the light-emitting functional layer is located on one side of the substrate;

[0007] A light-transmitting cover layer is located on the side of the light-emitting functional layer opposite to the substrate;

[0008] And an auxiliary structure located at the edge of the light-transmitting cover layer.

[0009] Based on the same inventive concept, this application also provides a display device, which includes the above-described display module.

[0010] By means of the above technical solution, the display module and display device provided in this application include at least one display panel, and the display panel includes an auxiliary structure located at the edge of the light-transmitting cover layer. The auxiliary structure is used to optimize and guide the light emitted from the edge of the light-transmitting cover layer, so that the light emitted from the edge of the light-transmitting cover layer is more biased towards the direction parallel to the plane where the light-transmitting cover layer is located. This improves the problem in the prior art that the light emitted from the edge of the light-transmitting cover layer is more concentrated towards the light emission direction of the display panel, thereby improving the problem of bright lines at the edge of the display panel when it is displayed, and also improving the problem of bright lines between adjacent display panels due to the large brightness at the splicing gap, ultimately improving the display effect of the display device. Attached Figure Description

[0011] The above and other features, advantages, and aspects of the embodiments of this disclosure will become more apparent from the accompanying drawings and the following detailed description. Throughout the drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the originals and elements are not necessarily drawn to scale.

[0012] Figure 1 This is a schematic diagram of the structure of a display module provided in an embodiment of this application;

[0013] Figure 2 This application provides a schematic diagram of another display module structure according to an embodiment;

[0014] Figure 3 This is a schematic diagram of the structure of another display module provided in an embodiment of this application;

[0015] Figure 4 A schematic diagram of the structure of another display module provided in the embodiments of this application.

[0016] Figure 5 This is a schematic diagram of the structure of another display module provided in an embodiment of this application;

[0017] Figure 6 This is a schematic diagram of the structure of another display module provided in an embodiment of this application;

[0018] Figure 7 This is a schematic diagram of the structure of another display module provided in an embodiment of this application;

[0019] Figure 8 This is a schematic diagram of the structure of another display module provided in an embodiment of this application;

[0020] Figure 9 This is a schematic diagram of the structure of another display module provided in an embodiment of this application;

[0021] Figure 10 This is a schematic diagram of the structure of another display module provided in an embodiment of this application;

[0022] Figure 11 This is a schematic diagram of the structure of another display module provided in an embodiment of this application;

[0023] Figure 12 This is a schematic diagram of the structure of another display module provided in an embodiment of this application;

[0024] Figure 13 This is a schematic diagram of the structure of another display module provided in an embodiment of this application;

[0025] Figure 14 This is a schematic diagram of the structure of another display module provided in an embodiment of this application;

[0026] Figure 15 This is a schematic diagram of the structure of another display module provided in an embodiment of this application;

[0027] Figure 16 This is a schematic diagram of the structure of another display module provided in an embodiment of this application;

[0028] Figure 17 This is a schematic diagram of the structure of another display module provided in an embodiment of this application;

[0029] Figure 18 This is a schematic diagram of the structure of another display module provided in an embodiment of this application;

[0030] Figure 19 This is a schematic diagram of the structure of another display module provided in an embodiment of this application;

[0031] Figure 20 This is a schematic diagram of the structure of another display module provided in an embodiment of this application;

[0032] Figure 21 This is a schematic diagram of the structure of another display module provided in an embodiment of this application;

[0033] Figure 22 This is a schematic diagram of the structure of another display module provided in an embodiment of this application;

[0034] Figure 23 This is a schematic diagram of the structure of another display module provided in an embodiment of this application;

[0035] Figure 24 This is a schematic diagram of the structure of another display module provided in an embodiment of this application. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] As described in the background section, with the continuous development of display technology, the manufacturing technology of display screens has become increasingly mature. Large-size screens are widely used in various indoor and outdoor applications. Large-size splicing displays are increasingly favored by users due to their portability, low failure rate, long lifespan, and low power consumption. However, existing splicing displays have gaps between adjacent display panels. When the splicing display is working, the brightness at these gaps is relatively high, affecting the image display effect.

[0038] Specifically, in the manufacture of large-size or special-sized displays, multiple display panels are typically spliced ​​together. Considering the manufacturing precision of the display panels and to avoid issues such as compression between panels during splicing, a certain area needs to be reserved between adjacent panels, resulting in a splicing gap of a certain width. In existing splicing displays, the light emitted from the sidewalls corresponding to the splicing gaps of the display panels is usually concentrated and tends to be parallel to its emission direction. Therefore, when displaying an image on the splicing display, the brightness at the corresponding splicing gap is higher than the brightness of the surrounding areas, causing bright lines to appear on the displayed image and affecting the overall display quality.

[0039] Based on this, embodiments of this application provide a display module and a display device to improve the display effect of the display device. To achieve the above objective, the technical solution provided by embodiments of this application is as follows, for details. Figures 1 to 24 The technical solutions provided in the embodiments of this application will be described in detail.

[0040] refer to Figure 1 The diagram shown is a structural schematic of a display module provided in an embodiment of this application. The display module 10 provided in this embodiment includes at least one display panel 100, and the display panel 100 includes:

[0041] The display panel 100 comprises: a substrate 110, which can be a rigid or flexible substrate, such as a glass substrate; a light-emitting functional layer 120 located on one side of the substrate 110; a light-transmitting cover layer 130 located on the side of the light-emitting functional layer 120 facing away from the substrate 110; and an auxiliary structure 140 located at the edge of the light-transmitting cover layer. Specifically, in the light-emitting direction Y1 of the display panel 100, the light-emitting functional layer 120 and the light-transmitting cover layer 130, and the auxiliary structure 140 formed at the edge of the light-transmitting cover layer 130 are sequentially stacked on the substrate 110.

[0042] Understandably, in the display module provided in this application embodiment, the display panel includes an auxiliary structure located at the edge of the light-transmitting cover layer. This auxiliary structure optimizes and guides the light emitted from the edge of the light-transmitting cover layer, causing the light to propagate more parallel to the plane of the light-transmitting cover layer. This improves upon the problem in the prior art where the light emitted from the edge of the light-transmitting cover layer is concentrated towards the light-emitting direction of the display panel, thereby improving the problem of bright lines at the edges of the display panel. In particular, when the display panel provided in this application embodiment is applied to a spliced ​​display module, i.e., when the display module includes multiple display panels, and at least some adjacent display panels are spliced ​​and fixed together, the problem of bright lines appearing between adjacent spliced ​​display panels due to high brightness at the splicing seam is improved, ultimately enhancing the display effect of the display device. Furthermore, since the auxiliary structure is located at the edge of the light-transmitting cover layer in this application embodiment, it also provides a certain buffering effect, mitigating the vulnerability of the edge of the light-transmitting cover layer to impact damage and improving the reliability of the display panel.

[0043] like Figure 1 As shown, the display module 10 provided in this embodiment may include a display panel 100. Alternatively, in other embodiments of this application, the display module may further include multiple display panels, and at least some of the display panels are spliced ​​and fixed together. See details. Figure 2 The diagram shown is a structural schematic of another display module provided in an embodiment of this application, wherein the display module 10 includes a plurality of display panels 100. Figure 2 The description takes four display panels 100 as an example (the number of display panels 100 is not specifically limited). Two adjacent display panels 100 are spliced ​​and fixed together, and there is a splicing gap 11 between the light-transmitting cover layer 130 of the two spliced ​​and fixed display panels 100.

[0044] It should be noted that the size of the splicing gap 11 is exaggerated in this embodiment for ease of understanding. In some optional embodiments, the splicing gap 11 can be a gap that is imperceptible to the naked eye. In some optional embodiments, the splicing gap 11 can be the interface where two adjacent display panels 100 contact.

[0045] Optionally, when two adjacent display panels are spliced ​​together, they can be fixed in the designed area using fixing brackets or adhesive, etc. This application does not impose specific restrictions on this splicing method. Continuing as... Figure 2 As shown, when the display module 10 provided in this embodiment includes multiple display panels 100, the multiple display panels 100 can be spliced ​​and fixed to make the display module 10 rectangular in shape. Or refer to Figure 3The diagram shown is a structural schematic of another display module provided in an embodiment of this application, wherein the display module 10 includes a plurality of display panels 100. Figure 3 Taking an example comprising seven display panels 100 (the specific number of display panels 100 is not limited), adjacent display panels 100 are spliced ​​and fixed together, and there is a splicing gap 11 between the light-transmitting cover layers 130 of the two spliced ​​display panels 100. When splicing adjacent display panels 100, they can be fixed in the designed area using fixing brackets or adhesive, and this application does not specifically limit the fixing and splicing method. Continuing... Figure 3 As shown, when the display module 10 provided in this application embodiment includes multiple display panels 100, the multiple display panels 100 can be spliced ​​and fixed to make the display module 10 have a circular shape.

[0046] It should be noted that this application is only for the purpose of... Figure 2 The rectangular display module 10 shown and Figure 3 The illustration uses a circular display module 10 as an example. In other embodiments of this application, the display module provided can also be a regular polygonal or elliptical display module, or it can be an irregularly shaped display module. The specific design of the splicing and arrangement order of the display panels needs to be determined based on the actual shape of the display module and the number of display panels; this application does not impose specific limitations. Similarly, this application does not impose specific limitations on the shape of the display panels; they can be regular polygons, circles, or ellipses, or they can be irregular shapes, depending on the actual application.

[0047] In one embodiment of this application, the auxiliary structure provided in this embodiment is located at the edge of the light-transmitting cover layer. Specifically, the auxiliary structure can be located at the end face of the side of the light-transmitting cover layer. The light-transmitting cover layer includes a top surface facing away from the substrate and a bottom surface facing the substrate. The end face of the light-transmitting cover layer is located between its top and bottom surfaces, and the end face of the light-transmitting cover layer is connected to its top and bottom surfaces. Figure 1 Simultaneous reference Figure 4 As shown, Figure 4 This is a schematic diagram of another display module provided in the embodiments of this application. The auxiliary structure 140 provided in this application embodiment can be a continuous structure arranged along the edge direction surrounding the light-transmitting cover layer 130. One form of the auxiliary structure 140 can be a continuous closed-loop structure arranged along the edge surrounding the light-transmitting cover layer 130. Alternatively, refer to... Figure 5As shown, another form of the auxiliary structure 140 provided in this application embodiment can be a continuous non-closed-loop structure arranged along the edge surrounding the light-transmitting covering layer 130. The size of the open-loop gap of this non-closed-loop auxiliary structure 140 (i.e., the gap between the two ends of the auxiliary structure 140 in the annular direction surrounding the light-transmitting covering layer 130) is not specifically limited in this application and needs to be specifically designed according to the actual application. Furthermore, the auxiliary structure provided in this application embodiment can also be a discontinuous structure arranged along the edge direction surrounding the light-transmitting covering layer. See details... Figure 6 The diagram shown is a structural schematic of another display module provided in this application embodiment. The auxiliary structure 140 is a discontinuous structure arranged along the edge direction of the light-transmitting cover layer 130. The auxiliary structure 140 is divided into multiple sub-auxiliary structures 1401 along the edge direction of the light-transmitting cover layer 130, and there is a gap between two adjacent sub-auxiliary structures 1401. The size of the gap between two adjacent sub-auxiliary structures 1401 is not specifically limited in this application.

[0048] In one embodiment of this application, the auxiliary structure of the display panel included in the display module provided in this embodiment can be a continuous structure or a non-continuous structure, and this application does not impose specific limitations on this. For example, see reference... Figure 7 The diagram shows a structural schematic of another display module provided in this application embodiment. The edge area of ​​the display module 10 can be covered by a frame structure. Therefore, the side of the display panel 100 located at the edge of the display module 10, adjacent to the edge of the display module 10, does not require the design of an auxiliary structure 140. Thus, in the display panel 100 located at the edge of the display module 10, specifically in the display panel 1001 marked in the figure, an auxiliary structure 140 can be provided in the area corresponding to the adjacent display panel 100, while the area of ​​the display panel 1001 adjacent to the edge of the display module 10 does not require the auxiliary structure 140. The display panel 1001 can be selected as a panel including a continuous non-closed-loop auxiliary structure 140. Alternatively, refer to... Figure 3 As shown, especially referencing Figure 3 The diagram illustrates a display panel 1002 located in the central area. This display panel 1002 is surrounded by other display panels 100. Therefore, considering the purpose of improving the display effect of the display module 10, this display panel 1002 can be selected as a panel of a continuous closed-loop auxiliary structure 140. Based on this, when optimizing the display module provided in this application embodiment, factors such as the position of the display panel within the display module can be considered when selecting a panel with a continuous or discontinuous auxiliary structure. This application does not impose specific limitations.

[0049] refer to Figure 8The diagram shows a structural schematic of another display module provided in this application embodiment, wherein, in the direction X parallel to the plane where the light-transmitting cover layer 130 is located, the auxiliary structure 140 extends beyond the edge of the substrate 110. The auxiliary structure 140 is used to optimize and guide the light emitted from the edge of the light-transmitting cover layer 130 (especially the end face of the light-transmitting cover layer 130), so that, compared with the prior art, the light emitted from the edge of the light-transmitting cover layer 130 is more concentrated and emitted towards the light-emitting direction Y1 of the display panel 100 (e.g., ...). Figure 8 The dashed arrows shown indicate a problem where light is mostly concentrated in the light emission direction Y1 of the display panel 100. The auxiliary structure 140 provided in this embodiment can guide the light emitted from the edge of the light-transmitting cover layer 130 to be more biased towards the direction X parallel to the plane of the light-transmitting cover layer 130 (e.g., ...). Figure 8 The solid arrows shown indicate that light is biased towards the direction X (parallel to the plane of the light-transmitting cover layer 130) during transmission, which improves the problem of bright lines at the edges of the display panel 100. Therefore, compared to the internal area of ​​the display panel, in the lateral direction (e.g., the X direction), the display panel is directly cut off or directly exposed at the end face, and the direction of the light emitted from this point is relatively complex. By setting the auxiliary structure 140 to extend beyond the edge of the substrate 100, some light emitted from areas outside the coverage of the display panel can be corrected, thereby better optimizing and guiding the light emitted from the edge of the light-transmitting cover layer 130, further improving the problem of bright lines at the edges of the display panel 100, weakening the difference in light output between the central display area and the edge display area, and improving the display effect of the display panel 100. At the same time, when the display panel 100 provided in this embodiment is applied to the spliced ​​display module 10, it improves the problem of bright lines between adjacent spliced ​​display panels 100 due to the high brightness at the splicing gap, ultimately improving the display effect of the display device.

[0050] It should be noted that the light emission direction of the display panel provided in this application embodiment is directional, therefore Figure 8 The light emission direction Y1 of the display panel 100 shown is marked with an arrow; however, the direction of the surface parallel to the light-transmitting cover layer is not directional. Figure 1 and Figure 8 The X-shaped direction marker shown has no arrow pointing inwards.

[0051] Continue to refer to Figure 2 or Figure 3As shown, the display module 10 provided in this embodiment includes at least two display panels 100, which are spliced ​​and fixed together, and there is a splicing gap 11 between the light-transmitting cover layers 130 of two adjacent display panels 100; at least a portion of the auxiliary structure 140 is located at the splicing gap 11. Therefore, by placing at least a portion of the auxiliary structure 140 at the splicing gap 11, the light emitted from the edge of the light-transmitting cover layer 130 can be better optimized and guided, improving the problem of bright lines appearing between adjacent spliced ​​display panels 100 due to the high brightness at the splicing gap 11, ultimately improving the display effect of the display module 10. Simultaneously, placing at least a portion of the auxiliary structure 140 at the splicing gap 11 allows the auxiliary structure 140 to partially block the splicing gap 11, thereby improving the visual discontinuity problem caused by the presence of the splicing gap 11 in addition to improving the display effect of the display module 10.

[0052] Furthermore, the auxiliary structure between adjacent display panels provided in this application embodiment can come into contact with each other, thereby further concealing the splicing gap. (See reference) Figure 9 The diagram shows a structural schematic of another display module provided in this application embodiment. In this embodiment, the auxiliary structures 140 of two adjacent display panels 100 are in contact with each other. On a reference plane parallel to the plane of the light-transmitting cover layer 130, the orthographic projection of the auxiliary structures 140 of the two adjacent display panels 100 covers the orthographic projection of the splicing gap 11, thereby completely blocking the splicing gap 11 through the auxiliary structures 140. This not only further improves the display effect of the display module 10 but also further enhances the visual continuity of the display module 10. The auxiliary structure provided in this application embodiment can optimize and guide the light emitted from the edge of the light-transmitting cover layer, causing the light emitted from the edge of the light-transmitting cover layer to propagate more towards the direction parallel to the plane of the light-transmitting cover layer. This improves the problem in the prior art where the light emitted from the edge of the light-transmitting cover layer is more concentrated towards the light-emitting direction of the display panel, thereby improving the bright line problem when the display module is displayed. The auxiliary structure can guide light rays emitted from the edge of the light-transmitting cover layer along their original optical path; or, after the light rays emitted from the edge of the light-transmitting cover layer have propagated along their original optical path for a period of time, guide them to change their transmission path to a direction parallel to the plane where the light-transmitting cover layer is located; or, the auxiliary structure can directly guide the transmission path of the light rays emitted from the edge of the light-transmitting cover layer to a direction parallel to the plane where the light-transmitting cover layer is located. This application does not impose specific limitations on these methods; the specific type of auxiliary structure determines the method of guiding and transmitting the light rays. The auxiliary structure provided in the embodiments of this application will be described in more detail below with reference to the accompanying drawings.

[0053] refer to Figure 10 The diagram shows a schematic representation of another display module provided in this application embodiment. The auxiliary structure 140 provided in this application embodiment includes a light-transmitting portion 141 connected to the end face of the light-transmitting cover layer 130. The end face of the light-transmitting cover layer 130 is the sidewall of the light-transmitting cover layer 130; that is, the light-transmitting cover layer 130 includes a top surface 131 facing away from the substrate 110 and a bottom surface 132 facing the substrate 110. The end face of the light-transmitting cover layer 130 is located between its top surface 131 and bottom surface 132, and is connected to both its top surface 131 and bottom surface 132. Light emitted from the end face of the light-transmitting cover layer 130 enters the light-transmitting portion 141, which guides the light to propagate in a direction X parallel to the plane of the light-transmitting cover layer 130, improving the bright line problem when the display module 10 displays an image.

[0054] The continuous shape of the light-transmitting portion provided in the embodiments of this application can be the same as the continuous shape of the auxiliary structure. Specifically, in conjunction with... Figures 4 to 6 The light-transmitting portion 141 of the display module 10 shown in this embodiment can be as follows: Figure 4 The continuous form of the auxiliary structure 140 shown means that the light-transmitting portion 141 can be a continuous closed-loop structure arranged along the end face direction surrounding the light-transmitting cover layer 130; or, the light-transmitting portion 141 can be as follows: Figure 5 The continuous form of the auxiliary structure 140 shown means that the light-transmitting portion 141 can be a continuous non-closed-loop structure arranged along the end face direction surrounding the light-transmitting cover layer 130; or, the light-transmitting portion 141 can be as follows: Figure 6 The continuous form of the auxiliary structure 140 shown, that is, the light-transmitting portion 141, can be a discontinuous structure arranged along the edge direction surrounding the light-transmitting cover layer 130. This application does not impose specific limitations on this. Furthermore, in the embodiments of this application, the light-transmitting portions of two adjacent display panels are in contact with each other; on a reference plane parallel to the plane where the light-transmitting cover layer is located, the orthographic projection of the light-transmitting portions of the two adjacent display panels covers the orthographic projection of the splicing seam, thereby completely blocking the splicing seam through the light-transmitting portions. This not only further improves the display effect of the display module but also further improves the visual continuity of the display module.

[0055] In one embodiment of this application, both the light-transmitting portion and the light-transmitting cover layer provided in this embodiment can be light-transmitting adhesive materials, such as PET (polyethylene terephthalate), TAC (cellulose triacetate), or PI (polyimide), etc. Optionally, the light-transmitting portion can be a light-transmitting structure independent of the light-transmitting cover layer. The material of the light-transmitting portion can be the same as or different from that of the light-transmitting cover layer, depending on the specific application. Alternatively, the light-transmitting portion and the light-transmitting cover layer provided in this embodiment can be an integral continuous structure. Integral molding of the light-transmitting portion and the light-transmitting cover layer not only simplifies the manufacturing process but also simplifies the components of the panel and improves the component compactness of the display panel. (Continue to refer to...) Figure 10 As shown, the light-transmitting portion 141 provided in this embodiment includes a top surface 1411 on the side of the display panel 100 in the light emission direction Y1, and the light-transmitting cover layer 130 includes a top surface 131 on the side facing away from the substrate 110. The top surface 1411 of the light-transmitting portion 141 is flush with the top surface 131 of the light-transmitting cover layer 130, that is, the top surface 1411 of the light-transmitting portion 141 and the top surface 131 of the light-transmitting cover layer 130 are located on the same plane, thereby ensuring the consistency of light emission between the top surface 1411 of the light-transmitting portion 141 and the top surface 131 of the light-transmitting cover layer 130, and improving the display effect of the display module 10. Optionally, the light-transmitting portion 141 and the light-transmitting cover layer 130 provided in this embodiment can be an integral continuous structure, which simplifies the manufacturing process of the display panel 100 and improves the component compactness of the display panel 100. Furthermore, the top surface of the light-transmitting portion 141 and the light-transmitting covering layer 130 provided in this application embodiment can have a matte effect, which can not only protect the light-emitting functional layer 120, but also play a role in preventing scratches and fingerprints.

[0056] refer to Figure 11The diagram shows a structural schematic of another display module provided in this application embodiment. The light-transmitting portion 141 provided in this application embodiment includes an end face away from the light-transmitting cover layer 130. The end face of the light-transmitting portion 141 includes a first end face 1412. Along the light emission direction Y1 of the display panel 100, the first end face 1412 is inclined toward the side away from the light-transmitting cover layer 130. That is, in the portion of the light-transmitting portion 141 corresponding to the first end face 1412, the width of the light-transmitting portion 141 in the direction X parallel to the plane where the light-transmitting cover layer 130 is located increases along the light emission direction Y1 of the display panel 100. The light-transmitting portion 141 provided in this embodiment has its first end face 1412 set as an inclined surface. When light is emitted from the end face of the light-transmitting cover layer 130 and into the light-transmitting portion 141 connected thereto, the light-transmitting portion 141 can guide the light to propagate along its original propagation path inside the light-transmitting portion 141. When the light is emitted from the first end face 1412, since the first end face 1412 is an inclined surface that is tilted towards the side away from the light-transmitting cover layer 130, the light is refracted after it is emitted from the first end face 1412 and the refracted light tends to be parallel to the plane where the light-transmitting cover layer 130 is located in the direction X. Thus, the light emitted from the end face of the light-transmitting cover layer 130 is guided twice by the light-transmitting portion 141, thereby improving the bright line problem when the display module 10 displays the screen and improving the display effect of the display module 10.

[0057] In one embodiment of this application, the inclination degree of the first end face 1412 is not specifically limited. (Continue to refer to...) Figure 11 As shown, in a cross-section parallel to the light emission direction Y1 of the display panel 100 and perpendicular to the edge of the light-transmitting cover layer 130 adjacent to the light-transmitting portion 141, the angle α between the line connecting the two endpoints of the first end face 1412 and the plane containing the top surface 131 of the light-transmitting cover layer 130 is 60-85 degrees. By optimizing the specific value of the angle α, the high mechanical strength and good optical effect of the light-transmitting portion 141 are ensured. The angle α is the angle between the line connecting the endpoints facing the side of the light-transmitting cover layer 130 and the plane containing the top surface 131 of the light-transmitting cover layer 130 facing the side of the substrate 110. The degree of inclination of the first end face 1412 provided in this embodiment can be illustrated by the angle α. The greater the degree of inclination of the first end face 1412, the smaller the angle α; conversely, the smaller the degree of inclination of the first end face 1412, the larger the angle α. It should be noted that whenever a tilt angle is mentioned in the following description of the embodiments of this application, the tilt angle is the angle between the line connecting the two endpoints of the end face in the cross section that is parallel to the light-emitting direction of the display panel and perpendicular to the edge of the light-transmitting cover layer adjacent to the light-transmitting part, and the plane where the top surface of the light-transmitting cover layer is located.

[0058] Figure 11 A schematic diagram shows the included angle α when the first end face 1412 is an inclined plane. Furthermore, the first end face provided in this embodiment can also be a concave surface recessed towards the light-transmitting cover layer. (See reference...) Figure 12 The diagram shows a structural schematic of another display module provided in this application embodiment. The first end face 1412 provided in this application embodiment can be a concave surface recessed towards the light-transmitting cover layer 130. In a cross-section parallel to the light emission direction Y1 of the display panel 100 and perpendicular to the edge of the light-transmitting cover layer 130 adjacent to the light-transmitting portion 141, the angle α between the line connecting the two endpoints of the first end face 1412 and the plane containing the top surface 131 of the light-transmitting cover layer 130 is 60-85 degrees. By optimizing the specific value of the angle α, high mechanical strength and good optical effect of the light-transmitting portion 141 are ensured. The angle α is the angle between the line connecting the endpoints facing the light-transmitting cover layer 130 and the plane containing the top surface 131 of the light-transmitting cover layer 130 facing the substrate 110.

[0059] The shape of the light-transmitting portion provided in the embodiments of this application can be arbitrary, so that the display panel can adapt to the splicing structure of different display modules. The specific shapes of several light-transmitting portions are described below with reference to the accompanying drawings. (Continue to refer to...) Figure 11 As shown in the embodiment of this application, the bottom edge of the first end face 1412 facing the substrate 110 is located on the interface between the light-transmitting portion 141 and the light-transmitting cover layer 130; further, the bottom edge of the first end face 1412 facing the substrate 110 is connected to the edge line of the bottom surface 132 of the light-transmitting cover layer 130. That is, on a reference plane parallel to the plane where the light-transmitting cover layer 130 is located, the orthographic projection of the bottom edge of the first end face 1412 facing the substrate 110 overlaps with the orthographic projection of the interface between the end faces of the light-transmitting portion 141 and the light-transmitting cover layer 130; and further, the bottom edge of the first end face 1412 facing the substrate 110 is connected to the edge line of the bottom surface 132 of the light-transmitting cover layer 130. Or refer to Figure 13 The diagram shows a structural schematic of another display module provided in this application embodiment. The light-transmitting portion 141 provided in this application embodiment includes a bottom surface 1413 on the side opposite to the light emission direction Y2 of the display panel 100. The bottom surface 1413 of the light-transmitting portion 141 is connected to the first end surface 1412. Furthermore, the edge of the bottom surface 1413 of the light-transmitting portion 141 facing the light-transmitting cover layer 130 is connected to the edge of the bottom surface 132 of the light-transmitting cover layer 130. By designing the light-transmitting portion 141 with different shapes, the applicability of the display panel 100 is improved, making the display panel 100 suitable for splicing structures of different display modules 10.

[0060] In one embodiment of this application, on a reference plane parallel to the plane where the light-transmitting cover layer is located, the orthographic projection of the bottom edge of the first end face facing the substrate overlaps with the orthographic projection of the substrate. While ensuring that the problem of bright lines in the display image can be improved through the light-transmitting portion, since the first end face of the light-transmitting portion is an inclined surface tilted away from the light-transmitting cover layer in the light-emitting direction of the display panel, the light-transmitting portion will extend beyond the edge of the substrate in the direction parallel to the plane where the light-transmitting cover layer is located. This further enhances the optimized guiding effect of the light emitted from the end face of the light-transmitting cover layer, thereby further improving the display effect of the display module. For details, please refer to... Figure 11 As shown, the bottom edge of the first end face 1412 facing the substrate 110 corresponds to the edge line of the substrate 110, such that on a reference plane parallel to the plane where the light-transmitting cover layer 130 is located, the orthographic projection of the bottom edge of the first end face 1412 facing the substrate 110 overlaps with the edge line of the orthographic projection of the substrate 110. Optionally, in the light emission direction Y1 of the display panel 100, the extension of the end face of the substrate 110 and the extension of the end face of the light-transmitting cover layer 130 are on the same plane; that is, on a reference plane parallel to the plane where the light-transmitting cover layer 130 is located, the edge line of the orthographic projection of the substrate 110 on the reference plane and the edge line of the orthographic projection of the light-transmitting cover layer 130 on the reference plane can overlap, and this application does not impose specific limitations on this.

[0061] The first end face provided in this application embodiment can be the entire end face of the light-transmitting portion; alternatively, the first end face can be a part of the entire end face of the light-transmitting portion, and the end face of the light-transmitting portion can also include end faces of other shapes. See details. Figure 14The diagram shows a structural schematic of another display module provided in this application embodiment. The end face of the light-transmitting portion 141 provided in this application embodiment further includes a second end face 1414. In the light emission direction Y1 of the display panel 100, the second end face 1414 is located on the side of the first end face 1412 away from the substrate 110. Along the light emission direction Y1 of the display panel 100, the second end face 1414 is inclined toward the side away from the light-transmitting cover layer 130. Both the first end face 1412 and the second end face 1414 are inclined surfaces, and the inclination directions of the first end face 1412 and the second end face 1414 are the same. When light is emitted from the end face of the light-transmitting cover layer 130 into the light-transmitting part 141 connected to it, the light-transmitting part 141 can guide the light to propagate along its original propagation path inside the light-transmitting part 141. When the light is emitted from the first end face 1412 and the second end face 1414, since both the first end face 1412 and the second end face 1414 are inclined surfaces that are tilted towards the side away from the light-transmitting cover layer 130, the light is refracted after it is emitted from the first end face 1412 and the second end face 1414, and the refracted light tends to be parallel to the plane where the light-transmitting cover layer 130 is located in the direction X. This improves the problem of high brightness at the edge of the display panel 100, achieves the purpose of improving the bright line problem when the display module 10 displays the picture, and improves the display effect of the display module 10. It should be noted that the embodiments of this application do not impose specific restrictions on the degree of inclination of the first end face 1412 and the second end face 1414. It is possible that the degree of inclination of the first end face 1412 is greater than the degree of inclination of the second end face 1414. This needs to be specifically designed according to the actual application.

[0062] Similarly, the degree of inclination of the second end face 1414 can also be represented by an inclination angle. The inclination angle corresponding to the second end face 1414 is: in a cross section parallel to the light emission direction Y1 of the display panel 100 and perpendicular to the edge of the light-transmitting cover layer 130 adjacent to the light-transmitting part 141, the inclination angle between the line connecting the two endpoints of the second end face 1414 and the plane containing the top surface 131 of the light-transmitting cover layer 130. This inclination angle can also be 60-85 degrees. Optionally, when the degree of inclination of the first end face 1412 is greater than the degree of inclination of the second end face 1414, the inclination angle corresponding to the first end face 1412 is less than the inclination angle corresponding to the second end face 1414; conversely, when the degree of inclination of the first end face 1412 is less than the degree of inclination of the second end face 1414, the inclination angle corresponding to the first end face 1412 is greater than the inclination angle corresponding to the second end face 1414.

[0063] The second end face provided in this application embodiment can be an inclined surface relative to the light emission direction of the display panel. Alternatively, the second end face provided in this application embodiment can also be a surface parallel to the display panel. See details. Figure 15 The diagram shown is a structural schematic of another display module provided in this application embodiment. The end face of the light-transmitting portion 141 provided in this application embodiment further includes a second end face 1414. In the light emission direction Y1 of the display panel 100, the second end face 1414 is located on the side of the first end face 1412 away from the substrate 110. The second end face 1414 is parallel to the light emission direction Y1 of the display panel 100. As can be seen, when light emerges from the end face of the light-transmitting cover layer 130 and enters the light-transmitting part 141 connected thereto, the light-transmitting part 141 can guide the light to propagate along its original propagation path inside the light-transmitting part 141. When the light is emitted from the first end face 1412 and the second end face 1414, since the first end face 1412 is an inclined surface that is tilted towards the side away from the light-transmitting cover layer 130, the light is refracted after it is emitted from the first end face 1412 and the refracted light tends to be parallel to the plane where the light-transmitting cover layer 130 is located in the direction X. This improves the problem of excessive brightness at the edge of the display panel 100, achieves the purpose of improving the bright line problem when the display module 10 displays the picture, and improves the display effect of the display module 10.

[0064] Continue as Figure 11 , Figure 13 and Figure 14 As shown, the first end face 1412 provided in this embodiment can be an inclined plane, that is, the first end face 1412 is an inclined surface, and the first end face 1412 is located on a plane. Or refer to Figure 16 As shown, this is a schematic diagram of another display module provided in this application embodiment. The first end face 1412 provided in this application embodiment is a concave surface recessed towards the light-transmitting cover layer 130. The first end face 1412 not only refracts the light emitted from it towards the direction X parallel to the plane of the light-transmitting cover layer 130, but also scatters the light through the concave surface, preventing light from concentrating at the edge of the display panel 100, further improving the bright line problem that occurs when the display module 10 displays an image. Continuing as... Figure 16 As shown, the light-transmitting portion 141 provided in this application embodiment includes a second end face 1414. When the inclination direction of the second end face 1414 is the same as that of the first end face 1412, at least one of the second end face 1414 and the first end face 1412 can be a concave surface recessed toward the side of the light-transmitting cover layer 130. This application does not impose specific limitations on this. The concave surface further improves the problem of bright lines when the display module 10 displays the image.

[0065] To improve the display module's ability to address bright lines while maintaining dimensional consistency in the display panel, the inclination of the first end face corresponding to light-transmitting portions of different thicknesses can be varied along the light-emitting direction of the display panel. Specifically, the thickness of at least a portion of the light-transmitting portion in the light-emitting direction of the display panel is inversely proportional to the inclination of the first end face corresponding to the light-transmitting portion; that is, the thickness of at least a portion of the light-transmitting portion in the light-emitting direction of the display panel is directly proportional to the corresponding inclination angle of the first end face corresponding to the light-transmitting portion. These different thicknesses of light-transmitting portions can be understood as different thicknesses in different areas of the light-transmitting portion on the same display panel, or as different thicknesses in different light-transmitting portions on different display panels. It should be noted that different thicknesses of the same light-transmitting portion refer to: dividing the light-transmitting portion along its extension direction into multiple segments, at least one segment having a different thickness in the light-emitting direction of the display panel compared to other segments; that is, different thicknesses of the same light-transmitting portion refer to: dividing the light-transmitting portion along the direction surrounding the edge of the light-transmitting cover layer into multiple sub-light-transmitting portions, at least one sub-light-transmitting portion having a different thickness in the light-emitting direction of the display panel compared to other sub-light-transmitting portions. Different thicknesses of light-transmitting portions in different display panels can refer to: at least some segments of the light-transmitting portion in at least one display panel of the same display module having a different thickness in the light-emitting direction compared to at least some segments of the light-transmitting portion in other display panels. Regardless of the interpretation of different thicknesses of the light-transmitting portion, the condition that the thickness of the light-transmitting portion is inversely proportional to the inclination of the corresponding first end face of the light-transmitting portion can be satisfied.

[0066] For details, please refer to the following: Figure 17The diagram shows a structural schematic of another display module provided in this application embodiment. In the same light-transmitting portion 141 of the same display panel 100, the light-transmitting portion 141 includes a first sub-light-transmitting portion 141a and a second sub-light-transmitting portion 141b. The thickness of the first sub-light-transmitting portion 141a in the light-emitting direction Y1 of the display panel 100 is greater than the thickness of the second sub-light-transmitting portion 141b in the light-emitting direction Y1 of the display panel 100. The inclination degree of the first end face 1412 of the first sub-light-transmitting portion 141a is less than the inclination degree of the first end face 1412 of the second sub-light-transmitting portion 141b; that is, the inclination angle a1 corresponding to the first end face 1412 of the first sub-light-transmitting portion 141a is greater than the inclination angle a2 corresponding to the first end face 1412 of the second sub-light-transmitting portion 141b. Therefore, the light emitted from the end face of the light-transmitting cover layer 130 is guided by the light-transmitting portion 141 to be parallel to the plane of the light-transmitting cover layer 130 in the direction X, thereby improving the bright line problem when the display module 10 displays the image. Furthermore, in this embodiment, the thickness of the first sub-light-transmitting portion 141a is greater than the thickness of the second sub-light-transmitting portion 141b. By designing the inclination of the first end face 1412 of the first sub-light-transmitting portion 141a to be less than the inclination of the first end face 1412 of the second sub-light-transmitting portion 141b, it is possible to ensure that, despite the different thicknesses of different areas of the light-transmitting portion 141, the dimensions of each area of ​​the light-transmitting portion 141 in the direction X parallel to the plane of the light-transmitting cover layer 130 are consistent (e.g., ...). Figure 17 In the plane of the parallel light-transmitting cover layer 130, the dimensions d1 of the first sub-light-transmitting part 141a and the second sub-light-transmitting part 141b are the same (in the direction X), thus improving the dimensional consistency of the display panel 100.

[0067] It should be noted that, under the condition that different areas of the same light-transmitting portion 141 have different thicknesses in the light-emitting direction Y1 of the display panel 100, the top surface 1411 of the light-transmitting portion 141 is flush with the top surface 131 of the light-transmitting cover layer 130, which means that the top surface 1411 of the light-transmitting portion 141 is flush with the top surface 131 of the adjacent light-transmitting cover layer 130. For example... Figure 17The top surface 131 of the light-transmitting cover layer 130 shown includes a first top surface 131a and a second top surface 131b. In the light emission direction Y1 of the display panel 100, the first top surface 131a is higher than the second top surface 131b. The first top surface 131a is flush with the top surface 1411a of the first sub-light-transmitting part 141a, and the second top surface 131b is flush with the top surface 1411b of the second sub-light-transmitting part 141b. Optionally, the first top surface 131a and the second top surface 131b provided in this embodiment can be connected by a cliff surface parallel to the light emission direction Y1 of the display panel 100, or by a sloped surface to achieve a buffer connection. This application does not impose specific limitations on this, and specific design is required according to actual application. And, the included angle a1 corresponding to the first end face 1412a of the first sub-light-transmitting part 141a is: in a cross section parallel to the light-emitting direction Y1 of the display panel 100 and perpendicular to the edge of the light-transmitting cover layer 130 adjacent to the first sub-light-transmitting part 141a, the angle between the line connecting the endpoints of the two endpoints of the first end face 1412a and the plane where the top surface 131a of the light-transmitting cover layer 130 is located in the adjacent connecting portion of the first sub-light-transmitting part 141a; and, the included angle a2 corresponding to the first end face 1412b of the second sub-light-transmitting part 141b is: in a cross section parallel to the light-emitting direction Y1 of the display panel 100 and perpendicular to the edge of the light-transmitting cover layer 130 adjacent to the second sub-light-transmitting part 141b, the angle between the line connecting the endpoints of the two endpoints of the first end face 1412b and the plane where the top surface 131b of the light-transmitting cover layer 130 is located in the adjacent connecting portion of the second sub-light-transmitting part 141b.

[0068] refer to Figure 18The diagram shows a structural schematic of another display panel provided in an embodiment of this application. The display module 10 provided in this embodiment includes at least two display panels, any two of which are a first display panel 100a and a second display panel 100b. The thickness of at least a portion of the light-transmitting portion 141 of the first display panel 100a in the light-emitting direction Y1 is greater than the thickness of at least a portion of the light-transmitting portion 141 of the second display panel 100b in the light-emitting direction Y1. The inclination degree of the first end face 1412 of the at least a portion of the light-transmitting portion 141 of the first display panel 100a is less than the inclination degree of the first end face 1412 of the at least a portion of the light-transmitting portion 141 of the second display panel 100b; that is, the inclination angle a3 corresponding to the first end face 1412 of the at least a portion of the light-transmitting portion 141 of the first display panel 100a is greater than the inclination angle a4 corresponding to the first end face 1412 of the at least a portion of the light-transmitting portion 141 of the second display panel 100b. Therefore, by improving the display effect of the display module 10 through the setting of the light-transmitting part 141, the dimensional consistency of different display panels 100 in the direction X of the plane parallel to the light-transmitting cover layer 130 is improved, which facilitates the design of the display module 10 and the splicing and combination of the display panels 100.

[0069] It should be noted that the display module provided in this application embodiment may only include structures with different thicknesses in different areas of the same light-transmitting portion as provided in the above embodiments; or, the display module may only include structures with different thicknesses in the light-transmitting portions of different display panels as provided in the above embodiments; or, the display module may include both structures with different thicknesses in different areas of the same light-transmitting portion as provided in the above embodiments and structures with different thicknesses in the light-transmitting portions of different display panels as provided in the above embodiments. This application does not impose specific limitations on these aspects. Furthermore, in any embodiment of this application, whenever the thickness of the light-transmitting portion is mentioned, the thickness refers to the thickness of the light-transmitting portion in the light-emitting direction of the display panel. Optionally, in the display module provided in this application embodiment, at least some or all of the display panels have the same size. Among these display panels with the same size, the thickness of each area of ​​the light-transmitting portion in any display panel is the same, and the thickness of the light-transmitting portions of different display panels is also the same. This improves the display effect of the display module and facilitates the unified manufacturing of display panels and the splicing and fixing design of different display panels.

[0070] In one embodiment of this application, to improve the consistency of light guidance from the light-transmitting portion to the end face of the light-transmitting cover layer, the tilt degree of the first end face provided in this embodiment can be set differently with reference to the distance between the light-emitting element and the light-transmitting portion. That is, the light-emitting functional layer includes multiple light-emitting elements, including a first light-emitting element adjacent to the edge of the substrate; at least a portion of the distance from the first light-emitting element to the light-transmitting portion is inversely proportional to the tilt degree of the first end face corresponding to the first light-emitting element; that is, at least a portion of the distance from the first light-emitting element to the light-transmitting portion is directly proportional to the corresponding tilt angle of the first end face corresponding to the first light-emitting element. This distance from different first light-emitting elements to the light-transmitting portion can be the distance from different first light-emitting elements to the light-transmitting portion in the same display panel. Alternatively, the distance from different first light-emitting elements to the light-transmitting portion can also be the distance from each corresponding first light-emitting element to its corresponding light-transmitting portion in different display panels. Regardless of the interpretation of the distance, the condition that the distance from the first light-emitting element to the adjacent light-transmitting portion is inversely proportional to the tilt degree of the first end face corresponding to the first light-emitting element can be satisfied.

[0071] For details, please refer to the following: Figure 19The diagram shown is a structural schematic of another display module provided in this application embodiment. The light-emitting functional layer includes a plurality of light-emitting elements 121. Furthermore, the light-emitting functional layer also includes a filling layer 122 disposed around the light-emitting elements 121. A light-transmitting cover layer 130 covers the side of the light-emitting elements 121 and the filling layer 122 facing away from the substrate 110. The plurality of light-emitting elements 121 includes a first light-emitting element 1211 adjacent to the edge of the substrate, wherein: the light-transmitting portion 141 includes a first sub-light-transmitting portion 141a and a second sub-light-transmitting portion 141b, the distance b1 between the first sub-light-transmitting portion 141a and the adjacent first light-emitting element 1211 is greater than the distance b2 between the second sub-light-transmitting portion 141b and the adjacent first light-emitting element 1211, wherein the inclination degree of the first end face 1412 of the first sub-light-transmitting portion 141a is less than the inclination degree of the first end face 1412 of the second sub-light-transmitting portion 141b; that is, the corresponding inclination angle a5 of the first end face 1412 of the first sub-light-transmitting portion 141a is greater than the corresponding inclination angle a6 of the first end face 1412 of the second sub-light-transmitting portion 141b. As can be seen, the distance b1 between the first sub-light-transmitting portion 141a and the adjacent first light-emitting element 1211 is relatively large. Therefore, the light emitted from the first light-emitting element 1211 to the end face of the light-transmitting cover layer 130 corresponding to the first sub-light-transmitting portion 141a tends to be more parallel to the plane of the light-transmitting cover layer 130 in the direction X. Conversely, the distance b2 between the second sub-light-transmitting portion 141b and the adjacent first light-emitting element 1211 is relatively small. Therefore, the light emitted from the first light-emitting element 1211 to the end face of the light-transmitting cover layer 130 corresponding to the second sub-light-transmitting portion 141b tends to be more parallel to the light emission direction Y1 of the display panel 100. Thus, the first sub-light-transmitting portion... The inclination degree of the first end face 1412 of the first sub-light-transmitting part 141a is set to be less than the inclination degree of the first end face 1412 of the second sub-light-transmitting part 141b. This reduces the degree to which the first end face 1412 of the first sub-light-transmitting part 141a guides light towards the direction X parallel to the plane of the light-transmitting cover layer 130, while increasing the degree to which the first end face 1412 of the second sub-light-transmitting part 141b guides light towards the direction X parallel to the plane of the light-transmitting cover layer 130. Ultimately, this improves the consistency of light guidance from different areas of the light-transmitting part to the end face of the light-transmitting cover layer, thereby improving the display effect of the display module 10. It should be noted that when the sub-light-transmitting part provided in this embodiment is adjacent to a first light-emitting element, the distance between the sub-light-transmitting part and the first light-emitting element is the time interval between them. When the sub-light-transmitting part is adjacent to multiple first light-emitting elements, the distance between the sub-light-transmitting part and the first light-emitting elements can be the minimum distance between the light-transmitting part and all the first light-emitting elements, or it can be the average distance between the sub-light-transmitting part and all the adjacent first light-emitting elements. This application does not impose any specific restrictions on this.

[0072] refer to Figure 20The diagram shown is a structural schematic of another display panel provided in the embodiment of this application. The light-emitting functional layer provided in the embodiment of this application includes a plurality of light-emitting elements 121. Furthermore, the light-emitting functional layer also includes a filling layer 122 disposed around the light-emitting elements 121. A light-transmitting cover layer 130 covers the side of the light-emitting elements 121 and the filling layer 122 that is away from the substrate 110. The plurality of light-emitting elements 121 includes a first light-emitting element 1211 adjacent to the edge of the substrate, wherein: the display module 10 includes at least two display panels, any two of the display panels being a first display panel 100c and a second display panel 100d, wherein the distance b3 between at least a portion of the light-transmitting portion 141 in the first display panel 100c and the adjacent first light-emitting element 1211 is greater than the distance b4 between at least a portion of the light-transmitting portion 141 in the second display panel 100d and the adjacent first light-emitting element 1211, wherein the inclination degree of the first end face 1412 of the at least a portion of the light-transmitting portion 141 in the first display panel 100c is less than the inclination degree of the first end face 1412 of the at least a portion of the light-transmitting portion 141 in the second display panel 100d; that is, the inclination angle a7 corresponding to the first end face 1412 of the at least a portion of the light-transmitting portion 141 in the first display panel 100c is greater than the inclination angle a8 of the first end face 1412 of the at least a portion of the light-transmitting portion 141 in the second display panel 100d. This improves the consistency of light guidance from different areas of the light-transmitting portion to the end face of the light-transmitting cover layer, thereby enhancing the display effect of the display module 10. It should be noted that when at least a portion of the light-transmitting portion of the display panel provided in this application is adjacent to a first light-emitting element, the distance between the at least a portion of the light-transmitting portion and the first light-emitting element is the time interval between them. However, when at least a portion of the light-transmitting portion of the display panel is adjacent to multiple first light-emitting elements, the distance between the at least a portion of the light-transmitting portion and the first light-emitting elements can be the minimum distance between the at least a portion of the light-transmitting portion and all the first light-emitting elements, or it can be the average distance between the at least a portion of the light-transmitting portion and all adjacent first light-emitting elements. This application does not impose specific limitations on this.

[0073] It should be noted that the display module provided in this application embodiment may only include the structure provided in the above embodiments where different areas of the same light-transmitting portion have different spacings with adjacent first light-emitting elements; or, the display module may only include the structure provided in the above embodiments where at least some light-transmitting portions of different display panels have different spacings with adjacent first light-emitting elements; or, the display module may include both the structure provided in the above embodiments where different areas of the same light-transmitting portion have different spacings with adjacent first light-emitting elements and the structure provided in the above embodiments where at least some light-transmitting portions of different display panels have different spacings with adjacent first light-emitting elements. This application does not impose specific limitations on these aspects. Optionally, the filling layer provided in this application embodiment may be a black filling layer, specifically a black adhesive layer, thereby achieving a blackening treatment of the substrate and improving display contrast. Furthermore, in the display module provided in this application embodiment, the spacing between the light-transmitting portion and the first light-emitting element in at least some or all of the display panels is consistent. Specifically, in these display panels, the spacing between different areas of the light-transmitting portion of any display panel and the adjacent first light-emitting element is the same, and the spacing between the light-transmitting portion and its adjacent first light-emitting element is the same in different display panels. This improves the display effect of the display module and facilitates the unified manufacturing of display panels and the splicing and fixing design of different display panels. When the end face of the light-transmitting portion provided in this application embodiment includes an inclined surface, it is not limited to the shape of the light-transmitting portion provided in any of the above embodiments. In other embodiments of this application, the light-transmitting portion can also be other shapes, as long as it satisfies the requirement that the light emitted from the end face of the light-transmitting cover layer tends to propagate in a direction parallel to the plane where the light-transmitting cover layer is located. Furthermore, the end face of the light-transmitting portion provided in this application embodiment can also be a surface parallel to the light-emitting direction of the display panel, as shown in the reference... Figure 21 The diagram shown is a structural schematic of another display module provided in this application embodiment. The light-transmitting part 141 provided in this application embodiment includes an end face 1415 facing away from the light-transmitting cover layer 130. The end face 1415 of the light-transmitting part 141 is parallel to the light emission direction Y1 of the display panel 100. The light-transmitting part 141 can also guide the light emitted from the end face of the light-transmitting cover layer 130 to propagate along the original light transmission path inside the light-transmitting part 141. This can improve the situation where the light concentration at the edge area of ​​the light-transmitting cover layer 130 tends to propagate parallel to the light emission direction Y1 of the display panel 100, thereby improving the display effect of the display module 10.

[0074] refer to Figure 22The diagram shows a structural schematic of another display module provided in this application embodiment. The auxiliary structure 140 provided in this application embodiment further includes a light-absorbing layer 142. The light-transmitting portion 141 includes an end face facing away from the light-transmitting cover layer 130, wherein the light-absorbing layer 142 covers at least a portion of the end face of the light-transmitting portion 141. Optionally, the light-absorbing layer 142 provided in this application embodiment covers all exposed surfaces of the light-transmitting portion 142 except for the top surface 1411. For example, when the light-transmitting portion 141 includes a first end face 1412 and a bottom surface 1413, the light-absorbing layer 142 covers the first end face 1412 and the bottom surface 1413, and the light-absorbing layer 142 exposes the top surface 1411 of the light-transmitting portion 141. In this embodiment, by providing a light-absorbing layer 142, when adjacent display panels 100 are spliced ​​together, if a difference in splicing height occurs in the light emission direction Y1 of the display panels 100, the light-absorbing layer 142 can absorb the side light emitted by the adjacent display panels 100, thereby avoiding the side light leakage problem of the display panels 100 and improving the display effect of the display module 10. Optionally, the light-absorbing layer provided in this embodiment can be a black light-absorbing structure. Specifically, the light-absorbing layer provided in this embodiment can be a light-absorbing film, such as a light-absorbing ink film; or, the light-absorbing layer provided in this embodiment can also be the carbonized surface of the light-transmitting part, and this application does not impose specific limitations on this.

[0075] In the display panel provided in this application embodiment, the bright line problem that occurs when the display module displays an image can be improved by optimizing the light guidance of the auxiliary structure. Furthermore, this application embodiment can also improve the bright line problem when the display module displays an image by improving the angle of the light-emitting surface of the light-emitting element. (Reference) Figure 23The diagram shows a schematic of another light-emitting element provided in this application embodiment. The light-emitting functional layer includes a plurality of light-emitting elements 121. Each light-emitting element 121 includes a first light-emitting element 1211 adjacent to the edge of the substrate 110. The light-emitting surface of the first light-emitting element 1211 is inclined toward the side of the adjacent auxiliary structure 140. The light emitted from the first light-emitting element 1211 tends to propagate in the direction X parallel to the plane of the light-transmitting cover layer 130. This makes the light emitted from the end face of the light-transmitting cover layer 130 more inclined to the direction X parallel to the plane of the light-transmitting cover layer 130. This solves the problem from the light source head that the light emitted from the end face of the light-transmitting cover layer 130 tends to be emitted in the direction Y1 parallel to the light emission direction of the display panel 100. Ultimately, this achieves the purpose of improving the bright line problem that occurs when the display module 10 displays the screen. Optionally, in order to achieve the tilted setting of the light-emitting surface of the first light-emitting element 1211, a special shape can be prepared during the manufacturing of the first light-emitting element 1211; or, a pad can be provided on the side of the first light-emitting element 1211 facing the substrate 110, and the first light-emitting element 1211 can be tilted by the pad to achieve the purpose of tilting the light-emitting surface of the first light-emitting element 1211.

[0076] In any of the above embodiments of this application, the light-emitting element provided in the embodiments of this application can be a light-emitting diode, such as... Figure 24 The diagram shows a schematic representation of another display module provided in this application embodiment. The light-emitting element 121 provided in this application embodiment can be a light-emitting diode (LED). The anode 121a and cathode 121b of the LED 121 can both be located on the side facing the substrate 110. When the substrate 110 is a circuit board, the anode 121a and cathode 121b can be electrically connected to pre-reserved connection pins (not shown) on the substrate 110. Furthermore, the light-emitting functional layer provided in this application embodiment may also include a filling layer 122, which at least fills the gaps around the light-emitting element 121.

[0077] Optionally, the filler layer 122 can be a black filler layer, such as a black adhesive layer, to improve the contrast when the panel displays an image. During the fabrication process, a black adhesive layer can be formed on a substrate (which can be an array substrate), and then the light-emitting element 121 can be pressed onto the electrode position on the corresponding substrate. By pressing, the light-emitting element 121 displaces the black adhesive layer material at the corresponding connection pin on the substrate 110, so that the light-emitting element 121 is connected or bonded to the connection pin on the substrate 110.

[0078] Optionally, in some other alternative embodiments of this application, the filling layer 122 may be formed on the surface of the substrate 110 facing the light-emitting functional layer, and then the filling layer 122 may be etched to reserve a groove for setting the light-emitting element. The groove may also be etched to form electrode holes for exposing the connection pins of the substrate 110. The anode 121a and the cathode 121b may be connected to the connection pins through their respective electrode holes. This application does not impose specific limitations on this.

[0079] Optionally, the light-emitting element provided in this application embodiment can be a miniature light-emitting diode element, such as a Mini light-emitting diode or a Micro light-emitting diode; or, the light-emitting element provided in this application embodiment can be an organic light-emitting diode element, and the substrate can be an array substrate that provides driving signals to the organic light-emitting diode element. This application does not impose specific limitations on this. It should be noted that the light-emitting element provided in this application embodiment can include at least a red light-emitting element, a green light-emitting element, and a blue light-emitting element. When the pixels in the light-emitting functional layer include red, green, and blue light-emitting elements, the three light-emitting elements can be arranged in a straight line along the row direction or along the column direction, or they can be arranged in a staggered triangular pattern. This application does not impose specific limitations on this. Furthermore, the gap area around the light-emitting element provided in this application embodiment may not be filled with a filling layer, but covered by a light-transmitting covering layer. This application does not impose specific limitations on this, and specific design is required based on the actual application.

[0080] Based on the same inventive concept, embodiments of this application also provide a display device, which includes the display module provided in any of the above embodiments. Optionally, the display device provided in embodiments of this application can be a large-size display device, or it can be a small-size display device such as a mobile terminal, tablet computer, wearable device, etc. This application does not specifically limit this type.

[0081] By means of the above technical solution, in the display module and display device provided in the embodiments of this application, the display module includes at least one display panel, and the display panel includes an auxiliary structure located at the edge of the light-transmitting cover layer. The auxiliary structure is used to optimize and guide the light emitted from the edge of the light-transmitting cover layer, so that the light emitted from the edge of the light-transmitting cover layer is more biased towards the direction parallel to the plane where the light-transmitting cover layer is located. This improves the problem in the prior art that the light emitted from the edge of the light-transmitting cover layer is more concentrated towards the light emission direction of the display panel, thereby improving the problem of bright lines at the edge when the display panel is displayed, and also improving the problem of bright lines between adjacent spliced ​​display panels due to the large brightness at the splicing gap, ultimately improving the display effect of the display device.

[0082] In the description of this invention, it should be understood that terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this 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 this 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 at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0084] In this invention, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0085] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0086] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0087] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A display module, characterized in that, The display module includes at least one display panel, the display panel comprising: substrate; A light-emitting functional layer, wherein the light-emitting functional layer is located on one side of the substrate; A light-transmitting cover layer is located on the side of the light-emitting functional layer opposite to the substrate; And, an auxiliary structure located at the edge of the light-transmitting cover layer; the auxiliary structure includes a light-transmitting portion connected to the end face of the light-transmitting cover layer, the end face of the light-transmitting cover layer being located between its top and bottom surfaces, and the end face of the light-transmitting cover layer being connected to its top and bottom surfaces; the light-transmitting portion includes an end face facing away from the light-transmitting cover layer; the end face of the light-transmitting portion includes a first end face, which is inclined toward the side facing away from the light-transmitting cover layer along the light emission direction of the display panel; On a reference plane parallel to the plane where the light-transmitting cover layer is located, the edge line of the orthographic projection of the substrate on the reference plane and the edge line of the orthographic projection of the light-transmitting cover layer on the reference plane overlap and coincide. The display module includes at least two display panels, which are spliced ​​and fixed together, and there is a splicing gap between the light-transmitting cover layers of two adjacent display panels; at least a portion of the auxiliary structure is located at the splicing gap; the auxiliary structures of two adjacent display panels are in contact with each other; on a reference plane parallel to the plane where the light-transmitting cover layers are located, the orthographic projection of the auxiliary structures of two adjacent display panels covers the orthographic projection of the splicing gap.

2. The display module according to claim 1, characterized in that, The light-transmitting portion includes a top surface on the side of the light-emitting direction of the display panel, and the light-transmitting covering layer includes a top surface on the side away from the substrate. The top surface of the light-transmitting part is flush with the top surface of the light-transmitting covering layer.

3. The display module according to claim 1, characterized in that, The bottom edge of the first end face facing the substrate is located on the interface between the light-transmitting portion and the light-transmitting cover layer; Alternatively, the light-transmitting portion may be a bottom surface on the side opposite to the light-emitting direction of the display panel, and the bottom surface of the light-transmitting portion may be connected to the first end surface.

4. The display module according to claim 1, characterized in that, On a reference plane parallel to the plane containing the light-transmitting cover layer, the orthographic projection of the bottom edge of the first end face facing the substrate overlaps with the orthographic projection of the substrate.

5. The display module according to claim 1, characterized in that, The end face of the light-transmitting portion further includes a second end face, and in the light-emitting direction of the display panel, the second end face is located on the side of the first end face away from the substrate; Wherein, along the light emission direction of the display panel, the second end face is inclined toward the side away from the light-transmitting cover layer; or, the second end face is parallel to the light emission direction of the display panel.

6. The display module according to claim 1, characterized in that, The first end face is an inclined plane; Alternatively, the first end face may be a concave surface recessed toward the side of the light-transmitting covering layer.

7. The display module according to claim 1, characterized in that, In a cross section parallel to the light-emitting direction of the display panel and perpendicular to the edge of the light-transmitting cover layer adjacent to the light-transmitting portion, the angle of inclination between the line connecting the two endpoints of the first end face and the plane containing the top surface of the light-transmitting cover layer is 60-85 degrees.

8. The display module according to claim 1, characterized in that, The thickness of at least a portion of the light-transmitting portion in the light-emitting direction of the display panel is inversely proportional to the degree of inclination of the first end face corresponding to the light-transmitting portion.

9. The display module according to claim 1, characterized in that, The light-transmitting portion includes a first sub-light-transmitting portion and a second sub-light-transmitting portion. The thickness of the first sub-light-transmitting portion in the light-emitting direction of the display panel is greater than the thickness of the second sub-light-transmitting portion in the light-emitting direction of the display panel. The inclination degree of the first end face of the first sub-light-transmitting portion is less than the inclination degree of the first end face of the second sub-light-transmitting portion. And / or, the display module includes at least two display panels, any two of the display panels being a first display panel and a second display panel, wherein the thickness of at least a portion of the light-transmitting portion of the first display panel is greater than the thickness of at least a portion of the light-transmitting portion of the second display panel, wherein the inclination of the first end face of the at least a portion of the light-transmitting portion of the first display panel is less than the inclination of the first end face of the at least a portion of the light-transmitting portion of the second display panel.

10. The display module according to claim 1, characterized in that, The light-emitting functional layer includes a plurality of light-emitting elements, the plurality of light-emitting elements including a first light-emitting element adjacent to the edge of the substrate; At least part of the distance from the first light-emitting element to the light-transmitting portion is inversely proportional to the degree of inclination of the first end face corresponding to the first light-emitting element.

11. The display module according to claim 1, characterized in that, The light-emitting functional layer includes a plurality of light-emitting elements, wherein the plurality of light-emitting elements includes a first light-emitting element adjacent to the edge of the substrate, wherein: The light-transmitting portion includes a first sub-light-transmitting portion and a second sub-light-transmitting portion. The distance between the first sub-light-transmitting portion and the adjacent first light-emitting element is greater than the distance between the second sub-light-transmitting portion and the adjacent first light-emitting element. The inclination of the first end face of the first sub-light-transmitting portion is less than the inclination of the first end face of the second sub-light-transmitting portion. And / or, the display module includes at least two display panels, any two of the display panels being a first display panel and a second display panel, wherein the distance between at least a portion of the light-transmitting portion of the first display panel and an adjacent first light-emitting element is greater than the distance between at least a portion of the light-transmitting portion of the second display panel and an adjacent first light-emitting element, wherein the inclination of the first end face of the at least a portion of the light-transmitting portion of the first display panel is less than the inclination of the first end face of the at least a portion of the light-transmitting portion of the second display panel.

12. The display module according to claim 1, characterized in that, The auxiliary structure also includes a light-absorbing layer; The light-transmitting portion includes an end face facing away from the light-transmitting covering layer, wherein the light-absorbing layer covers at least a portion of the end face of the light-transmitting portion.

13. The display module according to claim 12, characterized in that, The light-absorbing layer is a light-absorbing film; Alternatively, the light-absorbing layer may be the carbonized surface of the light-transmitting portion.

14. The display module according to claim 1, characterized in that, The light-transmitting part and the light-transmitting covering layer are an integral continuous structure.

15. The display module according to claim 1, characterized in that, The light-emitting functional layer includes a plurality of light-emitting elements, the light-emitting elements including a first light-emitting element adjacent to the edge of the substrate, the light-emitting surface of the first light-emitting element being inclined toward the auxiliary structure.

16. A display module, characterized in that, The display module includes at least one display panel, the display panel comprising: substrate; A light-emitting functional layer, wherein the light-emitting functional layer is located on one side of the substrate; A light-transmitting cover layer is located on the side of the light-emitting functional layer opposite to the substrate; And, an auxiliary structure located at the edge of the light-transmitting cover layer; the auxiliary structure includes a light-transmitting portion connected to the end face of the light-transmitting cover layer, the end face of the light-transmitting cover layer being located between its top and bottom surfaces, and the end face of the light-transmitting cover layer being connected to its top and bottom surfaces; the light-transmitting portion includes an end face facing away from the light-transmitting cover layer; the end face of the light-transmitting portion includes a first end face, which is inclined toward the side facing away from the light-transmitting cover layer along the light emission direction of the display panel; On a reference plane parallel to the plane where the light-transmitting cover layer is located, the edge line of the orthographic projection of the substrate on the reference plane and the edge line of the orthographic projection of the light-transmitting cover layer on the reference plane overlap and coincide. The auxiliary structure is used to guide the light emitted from the edge of the light-transmitting cover layer, so that the light emitted from the edge of the light-transmitting cover layer is deflected to a direction parallel to the plane where the light-transmitting cover layer is located, thereby improving the edge brightness lines when the display panel is displayed.

17. A display device, characterized in that, The display device includes the display module according to any one of claims 1-16.

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