Splicing display module and splicing display device

Abstract

The invention relates to a tiled display module and a tiled display device.The tiled display module comprises a plurality of display panels arranged in a tiled mode, the plurality of display panels comprise a first display panel and a second display panel which are adjacent to each other, and a tiled seam is formed between the first display panel and the second display panel; the first display panel comprises a first edge display area arranged close to the second display panel, and the second display panel comprises a second edge display area arranged close to the first display panel; the dimming structures are located on the light emitting sides of the multiple display panels and comprise lens assemblies arranged to cover the splicing seams, and the lens assemblies are configured to cover the first edge display areas and the second edge display areas; the first edge display area and the second edge display area are provided with splicing seams, so that light paths of light emitted from the first edge display area and the second edge display area are changed, and part of the light is emitted from the splicing seams.

Description

Technical Field

[0001] The present invention relates to the technical field of display product manufacturing, and in particular to a spliced ​​display module and a spliced ​​display device. Background Art

[0002] At present, high-definition large-size screens are becoming more and more common in commercial applications, and people's requirements for high-definition screens are getting higher and higher. Today's high-definition screens are composed of multiple small screens. Generally, the distance between screens is about 0.7mm-1.5mm. Under close viewing conditions, there will be obvious black seams at the splicing seams, which seriously affects the display effect of the spliced ​​display. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a spliced ​​display module and a spliced ​​display device, which can emit light between two adjacent display panels to eliminate the splicing seam of the display module and improve the display effect of the display module.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted in the embodiment of the present invention is: a spliced ​​display module, comprising:

[0005] A plurality of display panels are spliced ​​together, wherein the plurality of display panels include a first display panel and a second display panel that are adjacent to each other, a splicing seam is formed between the first display panel and the second display panel, the first display panel includes a first edge display area that is disposed close to the second display panel, and the second display panel includes a second edge display area that is disposed close to the first display panel;

[0006] A dimming structure is located on the light-emitting side of the plurality of display panels, the dimming structure includes a lens assembly covering the joint seam, and the lens assembly is configured to cover the first edge display area and the second edge display area to change the optical path of the light emitted from the first edge display area and the second edge display area so that part of the light is emitted from the joint seam.

[0007] Optionally, along the light emitting direction of the display panel, the lens assembly includes a first lens structure and a second lens structure stacked together;

[0008] The first lens structure is configured to make part of the light emitted from the first edge display area and the second edge display area emit toward the direction of the joint seam;

[0009] The second lens structure is configured to collimate light emitted from the first lens structure.

[0010] Optionally, in the light emitting direction of the display panel, the first lens structure includes a light incident surface and a light emitting surface arranged opposite to each other, the light incident surface is a planar structure parallel to the light emitting surface of the display panel, and the light emitting surface is a convex structure convexly arranged in a direction away from the display panel.

[0011] Optionally, the first lens structure is a cylindrical lens extending along a first direction, the first direction is perpendicular to a direction from the first display panel to the second display panel, and the first direction is parallel to a light emitting surface of the display panel.

[0012] Optionally, the joint seam has a center line extending along the first direction, and the axial center line of the cylindrical lens coincides with the center line.

[0013] Optionally, the second lens structure includes:

[0014] A first lens portion, the first lens portion is disposed on a light-emitting side of the first lens structure, and the first lens portion is configured to totally reflect a portion of light emitted from the first lens structure;

[0015] The second lens portion is arranged on the light-emitting side of the first lens portion, and the second lens portion is configured to allow part of the light emitted from the first lens portion and the light reflected by the first lens portion to be emitted in a direction perpendicular to the light-emitting surface of the display panel.

[0016] Optionally, the second lens structure includes a strip-shaped transparent body extending along a first direction, wherein the first direction is perpendicular to a direction from the first display panel to the second display panel, and the first direction is parallel to a light emitting surface of the display panel;

[0017] The transparent body comprises two side surfaces arranged opposite to each other in a second direction, and a light incident surface and a light emitting surface arranged opposite to each other in a light emitting direction of the display panel, wherein the second direction is perpendicular to the first direction and parallel to the light emitting surface of the display panel;

[0018] The first lens portion includes a plurality of first convex lenses, wherein the first convex lenses are cylindrical lenses extending along the first direction, and a plurality of the first convex lenses are arranged side by side on each of the side surfaces in a direction away from the display panel;

[0019] The second lens portion includes a second convex lens disposed on the light exiting surface, the second convex lens is a cylindrical lens extending along the first direction, and the orthographic projection of the second convex lens on the display panel completely covers the corresponding joint seam.

[0020] Optionally, the cross-section of the transparent body in the light emitting direction of the display panel is trapezoidal, and in a third direction, the length of the light incident surface is smaller than the length of the light emitting surface, and the third direction is parallel to the direction from the first display panel to the second display panel.

[0021] Optionally, along the direction away from the display panel, the curvature radius of the reflective surface of the plurality of first convex lenses on each of the side surfaces gradually increases.

[0022] Optionally, the plurality of first convex lenses on the two side surfaces are symmetrically arranged.

[0023] Optionally, the first lens structure and the second lens structure are supported by a transparent pillar, and the length of the transparent pillar is a preset value so that the light incident on the first lens portion can be totally reflected.

[0024] Optionally, a transparent adhesive layer is filled between the first lens structure and the second lens structure so that the distance between the first lens structure and the second lens structure is a preset value, so that light incident on the first lens portion can be totally reflected.

[0025] Optionally, a plurality of pixels are arranged in an array on the display panel, with at least one row or at least one column of pixels in the first edge display area, and at least one row or at least one column of pixels in the second edge display area.

[0026] An embodiment of the present invention further provides a spliced ​​display device, comprising the spliced ​​display module mentioned above.

[0027] The beneficial effect of the present invention is that by arranging a dimming structure on the light-emitting side of the display panel, optical compensation is performed on the joint seams between two adjacent display panels, thereby effectively improving the black gap phenomenon between the joint screen seams. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic diagram showing the display status of a splicing display module in the related art;

[0029] Figure 2 A schematic diagram showing the display state of a spliced ​​display module in an embodiment of the present invention;

[0030] Figure 3 A schematic diagram showing a spliced ​​display module in an embodiment of the present invention;

[0031] Figure 4 A schematic diagram showing a dimming structure in an embodiment of the present invention;

[0032] Figure 5 A schematic diagram showing a dimming structure in an embodiment of the present invention. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0034] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. The "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, similar words such as "one", "one" or "the" do not indicate quantity restrictions, but indicate that there is at least one. Similar words such as "include" or "comprise" mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Similar words such as "connect" or "connected" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0035] The features such as "parallel", "perpendicular", and "same" used in the embodiments of the present disclosure include the features such as "parallel", "perpendicular", and "same" in a strict sense, as well as the cases where "approximately parallel", "approximately perpendicular", "approximately the same", etc. include certain tolerances, taking into account the tolerances associated with the measurement of specific quantities (e.g., the limitations of the measurement system), and represent the acceptable deviation range for a specific value determined by ordinary technicians in the field. For example, "approximately" can mean within one or more standard deviations, or within 3% or 5% of the value.

[0036] In addition, in this document, unless otherwise defined, the terms "substantially", "substantially", "approximately" and "about" are used to describe and explain small changes. When used with an event or situation, these terms can cover situations where the event or situation occurs exactly, and can also cover situations where the event or situation occurs approximately. For example, when used with a numerical value, these terms can include a range of variation of less than or equal to 10% of the numerical value, such as less than or equal to ±5%, less than or equal to ±4%, less than or equal to ±3%, less than or equal to ±2%, less than or equal to ±1%, less than or equal to ±0.5%, less than or equal to ±0.1%, less than or equal to ±0.05%. The term "substantially coplanar" can refer to two surfaces being arranged along the same plane in the micrometer range, for example, arranged along the same plane within 40μm, 30μm, 20μm, 10μm or 1μm.

[0037] Figure 1 It is a display screen of a spliced ​​display module in the related art. Figure 1 The splicing display module has four display panels spliced ​​together, and the four display panels are spliced ​​together to form a field-shaped structure. Figure 1 It can be clearly seen that there is a black gap at the joint seam 10 between adjacent display panels.

[0038] refer to Figure 3-Figure 5 In order to solve the above problems, the present embodiment provides a spliced ​​display module, including a plurality of display panels spliced ​​together, and a dimming structure located at the light emitting side of the plurality of display panels.

[0039] By arranging a dimming structure on the light-emitting side of the display panel, optical compensation is performed on the joint seam 10 between two adjacent display panels, thereby effectively improving the black gap phenomenon between the joint screen seams.

[0040] The number of the display panels is at least two, and the specific number can be set according to actual needs and is not limited here.

[0041] There is a joint seam 10 between any two adjacent display panels, and there is at least one joint seam 10 between at least two display panels. The dimming structure includes a lens assembly arranged to cover the joint seam 10, and the number of the lens assemblies is the same as the number of the joint seams 10. In an embodiment where there are multiple joint seams 10, the dimming structure has multiple lens assemblies arranged in a one-to-one correspondence with the multiple joint seams 10.

[0042] Specifically, the plurality of display panels include adjacent first display panels 11 and second display panels 12, and a joint seam 10 is formed between the first display panel 11 and the second display panel 12. The dimming structure of this embodiment is specifically described below by taking a transparent component provided corresponding to the joint seam 10 as an example.

[0043] The first display panel 11 includes a first edge display area disposed close to the second display panel 12, and the second display panel 12 includes a second edge display area disposed close to the first display panel 11;

[0044] The dimming structure includes a lens assembly covering the joint seam 10, and the lens assembly is configured to cover the first edge display area and the second edge display area to change the optical path of light emitted from the first edge display area and the second edge display area so that part of the light is emitted from the joint seam 10.

[0045] The structures of the first display panel 11 and the second display panel 12 are the same. The first display panel 11 includes a plurality of pixels 101 arranged in an array. To ensure the display effect, the number of pixels 101 included in the first edge display area and the second edge display area is the same. The lens assembly is arranged so that part of the light emitted from the first edge display area and the light emitted from the pixels of the second edge display area are emitted toward the splicing seam 10, thereby effectively improving the black gap phenomenon between the splicing screen seams. Figure 2 is a schematic diagram of the display state of the splicing display module in the embodiment of the present disclosure, compared with Figure 1 and Figure 2 , the black seam phenomenon at the joint 10 is significantly weakened.

[0046] In an exemplary embodiment, the first display panel 11 and the second display panel 12 are both rectangular structures, the joint seam 10 is extended along the row direction or column direction of the pixel 101, the first edge display area has at least one row or at least one column of pixels 101, the second edge display area has at least one row or at least one column of pixels 101, and the number of rows or columns of pixels 101 included in the second edge display area is the same as the number of rows or columns of pixels 101 included in the first edge display area.

[0047] In the embodiment of the present disclosure, in order to optically compensate the joint seam 10 between the first display panel 11 and the second display panel 12, the dimming structure is provided to change the optical path of part of the light emitted by the pixels in the first edge display area, and the optical path of part of the light emitted by the pixels in the second edge display area is changed, so that part of the light emitted by the pixels in the first edge display area and part of the light emitted by the pixels in the second edge display area are emitted toward the joint seam 10, thereby improving the black seam phenomenon. However, this will also weaken the light effects of the first edge display area and the second edge display area. In order to solve this problem, in an embodiment of the present disclosure, the splicing display module also includes a brightness adjustment structure, which is configured to increase the current of the pixels in the first edge display area to increase the brightness of the light emitted by the pixels in the first edge display area, and increase the current of the pixels in the second edge display area to increase the brightness of the light emitted by the pixels in the second edge display area. In this way, while part of the light emitted by the pixels in the first edge display area and part of the light emitted by the pixels in the second edge display area are emitted toward the splicing seam 10 through the dimming structure, thereby improving the black seam phenomenon, it will not affect the display light effects of the first edge display area and the second edge display area, thereby improving the brightness uniformity of the display of the splicing display module.

[0048] In an exemplary embodiment, along the light emitting direction of the display panel, the lens assembly includes a first lens structure 2 and a second lens structure stacked together;

[0049] The first lens structure 2 is configured to allow part of the light emitted from the first edge display area and the second edge display area to be emitted toward the joint seam 10;

[0050] The second lens structure is configured to collimate the light emitted from the first lens structure 2 .

[0051] In an exemplary embodiment, in the light emitting direction of the display panel (reference Figure 4 In the Y direction), the first lens structure 2 includes a light incident surface and a light emitting surface that are relatively arranged, the light incident surface is a planar structure parallel to the light emitting surface of the display panel, and the light emitting surface is a convex structure convexly arranged in a direction away from the display panel.

[0052] Exemplarily, the first lens structure 2 is a convex lens structure, which is arranged on the light emitting surface of the display panel.

[0053] Exemplarily, the first transparent structure may be connected to the display panel via optical adhesive.

[0054] In an exemplary embodiment, the first lens structure 2 is along a first direction (reference Figure 4 A cylindrical lens extending in a Z direction in the image display panel (in the Z direction), wherein the first direction is perpendicular to a direction from the first display panel 11 to the second display panel 12, and the first direction is parallel to a light emitting surface of the display panel.

[0055] The first lens structure 2 completely covers the joint seam 10 , and the first direction is the extending direction of the joint seam 10 .

[0056] In an exemplary embodiment, the joint seam 10 has a center line extending along the first direction, and the axial center line of the cylindrical lens coincides with the center line. That is, the first display panel 11 and the second display panel 12 are symmetrically arranged relative to the first lens structure 2.

[0057] It should be noted that the angle of light emitted through the first lens structure 2 is related to the parameters of the first lens structure 2, for example, the height of the first lens structure 2 (the height in the light emitting direction of the display panel), the radius of curvature of the convex structure, etc., which are not limited here, as long as part of the light emitted by the pixels of the first edge display area and part of the light emitted by the pixels of the second edge display area change the emission angle under the dimming effect of the first lens structure 2 and all enter the second lens structure.

[0058] refer to Figure 4 In some embodiments, the height a1 of the first lens structure 2 is 1.2-1.7 mm, for example, 1.5 mm.

[0059] In some embodiments, the convex structure is a portion of a circle, and its radius may be 5.5-6.5 mm. For example, the radius of the convex structure may be 6.02 mm.

[0060] In some embodiments, the transmittance of the first lens structure 2 is greater than 80% to ensure light efficiency.

[0061] In some embodiments, the first lens structure 2 is made of transparent optical plastics such as PMMA, PC, PS, or transparent optical glass.

[0062] In an exemplary embodiment, the second lens structure includes:

[0063] A first lens portion, wherein the first lens portion is disposed on a light-emitting side of the first lens structure 2, and the first lens portion is configured to totally reflect a portion of light emitted from the first lens structure 2;

[0064] The second lens portion is arranged on the light-emitting side of the first lens portion, and the second lens portion is configured to allow part of the light emitted from the first lens portion and the light reflected by the first lens portion to be emitted in a direction perpendicular to the light-emitting surface of the display panel.

[0065] The first lens portion is located between the second lens portion and the first lens structure 2. Part of the light emitted through the first lens structure 2 is directly incident on the second lens portion, and part of the light emitted through the first lens structure 2 is incident on the first lens portion. After total reflection from the first lens portion, it is incident on the second lens portion. The first lens portion and the second lens portion cooperate to achieve light collimation.

[0066] In an exemplary embodiment, the second lens structure includes a strip-shaped transparent body 3 extending along a first direction, wherein the first direction is perpendicular to a direction from the first display panel 11 to the second display panel 12, and the first direction is parallel to a light emitting surface of the display panel, that is, the first direction is parallel to an extending direction of the joint seam 10;

[0067] The transparent body 3 includes a second direction (reference Figure 4 two side surfaces arranged opposite to each other in the X direction in the display panel, and a light incident surface and a light emitting surface arranged opposite to each other in the light emitting direction of the display panel, the second direction is perpendicular to the first direction, and the second direction is parallel to the light emitting surface of the display panel;

[0068] The first lens portion includes a plurality of first convex lenses 31, wherein the first convex lenses 31 are cylindrical lenses extending along the first direction, and a plurality of the first convex lenses 31 are arranged side by side on each of the side surfaces in a direction away from the display panel;

[0069] The second lens portion includes a second convex lens 32 disposed on the light exit surface. The second convex lens 32 is a cylindrical lens extending along the first direction. The orthographic projection of the second convex lens 32 on the display panel completely covers the corresponding joint seam 10 .

[0070] Exemplarily, the second convex lens 32 has an axial centerline extending along the first direction, and the orthographic projection of the axial centerline of the second convex lens 32 on the first lens structure coincides with the axial centerline of the first lens structure.

[0071] refer to Figure 3The orthographic projection of the second convex lens 32 on the display panel is the first projection, the orthographic projection of the multiple first convex lenses 31 on each side on the display panel is the second projection, the first projection is located between the two second projections, and the first projection completely covers the joint seam 10 between the first display panel 11 and the second display panel 12.

[0072] The light-emitting surface of the second lens portion includes the second convex lens 32 and an edge light-emitting area 33 located around the second convex lens 32. Part of the light emitted by the first lens structure 2 is directly incident on the second convex lens 32, and is collimated and emitted through the dimming effect of the second convex lens 32 (emitted in a direction perpendicular to the light-emitting surface of the display panel to enhance the light effect). Part of the light emitted by the first lens structure 2 (here refers to large-angle light) is incident on the first lens portion, and after total reflection by multiple first convex lenses 31, it is incident on the second lens portion, and is collimated and emitted from the second convex lens 32 or the edge light-emitting area 33.

[0073] In an exemplary embodiment, the cross section of the transparent body 3 in the light emitting direction of the display panel is trapezoidal, and in the third direction (reference Figure 4 In the X direction), the length of the light incident surface is smaller than the length of the light emitting surface, and the third direction is parallel to the direction from the first display panel 11 to the second display panel 12.

[0074] Exemplarily, the transparent body 3 is an isosceles trapezoid to ensure the dimming effect of the dimming structure.

[0075] Exemplarily, the plurality of first convex lenses 31 on the two side surfaces are symmetrically arranged. The orthographic projection of one of the first convex lenses 31 on one side surface in the third direction (the direction from the first display panel 11 to the second display panel 12) overlaps with the corresponding first convex lens 31 on the other side surface.

[0076] In an exemplary embodiment, along a direction away from the display panel, the curvature radius of the reflective surface of the plurality of first convex lenses 31 on each side surface gradually increases.

[0077] refer to Figure 3 and Figure 4 Each of the side surfaces includes four of the first convex lenses 31. In some embodiments, along a direction away from the display panel, the curvature radii of the four of the first convex lenses 31 are 1.31, 2.35, 2.8, and 3.37, respectively.

[0078] In an exemplary embodiment, in a direction perpendicular to the display panel, a height a3 of the transparent body 3 is 2-2.5 mm, for example, 2.3 mm.

[0079] In an exemplary embodiment, the radius of curvature of the second convex lens 32 is greater than the radius of curvature of the first convex lens 31 close to the second convex lens 32. In some embodiments, the radius of curvature of the second convex lens 32 is 4-4.5 mm, for example, 4.2. The height a4 of the second convex lens 32 in a direction perpendicular to the display panel is 0.2-0.8 mm, for example, 0.5 mm, but is not limited to this.

[0080] In an exemplary embodiment, the second lens structure is an integral structure, that is, the first lens portion and the second lens portion are integrally formed to simplify the process.

[0081] In an exemplary embodiment, the light transmittance of the second lens structure is greater than 80%.

[0082] In an exemplary embodiment, the material of the second lens structure is transparent optical plastic such as PMMA, PC, PS, or transparent optical glass.

[0083] In an exemplary embodiment, the first lens structure 2 and the second lens structure are supported by a transparent support column 4, and the length of the transparent support column 4 is a preset value so that the light incident on the first lens portion can be totally reflected.

[0084] The preset value can be set according to actual needs. For example, the preset value can be 0.5-1.5 mm, such as 0.75 mm, but is not limited thereto.

[0085] In an exemplary embodiment, a transparent adhesive layer 5 is filled between the first lens structure 2 and the second lens structure so that the distance between the first lens structure 2 and the second lens structure is a preset value, so that the light incident on the first lens portion can be totally reflected.

[0086] The preset value can be set according to actual needs, for example Figure 4 The preset value a2 may be 0.5-1.5 mm, for example, 0.75 mm, but is not limited thereto.

[0087] In an exemplary embodiment, the refractive index of the transparent adhesive layer 5 is smaller than the refractive index of the first lens structure 2 , and the refractive index of the transparent adhesive layer 5 is smaller than the refractive index of the second lens structure.

[0088] Exemplarily, the transparent adhesive material is made of transparent silicone, and the refractive index of the transparent adhesive layer 5 is 1.35-1.45.

[0089] In an exemplary embodiment, a plurality of pixels are arranged in an array on the display panel, with at least one row or at least one column of pixels in the first edge display area, and at least one row or at least one column of pixels in the second edge display area.

[0090] The splicing display module provided in the embodiment of the present disclosure allows the splicing seams 10 between adjacent display panels to also emit light, thereby improving the occurrence of black seams between adjacent display panels, and can even achieve the situation where the gaps between adjacent display panels are invisible to the naked eye when the viewer's viewing distance is about 2m (the application function of the splicing screen is to replace display products such as TVs larger than 100 inches. The display technology of TVs larger than 100 inches generally has a relatively low yield. The splicing screen uses small-sized display screens, which are spliced ​​together to form a large-sized display, which can improve the yield and reduce costs. The viewing distance of such large display products is generally more than 2 meters).

[0091] In an exemplary embodiment, the display panel may be a self-luminous OLED display panel.

[0092] An embodiment of the present invention further provides a spliced ​​display device, comprising the spliced ​​display module mentioned above.

[0093] The display device may be any product or component with a display function, such as a digital photo frame, a mobile phone, a tablet computer, etc., wherein the display device further includes a flexible circuit board, a printed circuit board and a backplane.

[0094] There are a few points to note:

[0095] (1) The drawings of the embodiments of the present disclosure only relate to the structures related to the embodiments of the present disclosure, and other structures may refer to the general design.

[0096] (2) For the sake of clarity, in the drawings used to describe the embodiments of the present disclosure, the thickness of layers or regions is exaggerated or reduced, that is, these drawings are not drawn according to the actual scale. It is understood that when an element such as a layer, film, region or substrate is referred to as being "on" or "under" another element, the element may be "directly" "on" or "under" the other element or there may be intermediate elements.

[0097] (3) In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0098] It is to be understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A splicing display module, characterized in that: include: A plurality of display panels are spliced ​​together, wherein the plurality of display panels include a first display panel and a second display panel that are adjacent to each other, a splicing seam is formed between the first display panel and the second display panel, the first display panel includes a first edge display area that is disposed close to the second display panel, and the second display panel includes a second edge display area that is disposed close to the first display panel; A dimming structure is located on the light-emitting side of the plurality of display panels, the dimming structure includes a lens assembly covering the joint seam, and the lens assembly is configured to cover the first edge display area and the second edge display area to change the optical path of the light emitted from the first edge display area and the second edge display area so that part of the light is emitted from the joint seam.

2. The splicing display module according to claim 1, characterized in that: Along the light emitting direction of the display panel, the lens assembly includes a first lens structure and a second lens structure stacked together; The first lens structure is configured to make part of the light emitted from the first edge display area and the second edge display area emit toward the direction of the joint seam; The second lens structure is configured to collimate light emitted from the first lens structure.

3. The splicing display module according to claim 2, characterized in that: In the light emitting direction of the display panel, the first lens structure includes a light incident surface and a light emitting surface which are arranged opposite to each other, the light incident surface is a planar structure parallel to the light emitting surface of the display panel, and the light emitting surface is a convex structure convexly arranged in a direction away from the display panel.

4. The splicing display module according to claim 3, characterized in that: The first lens structure is a cylindrical lens extending along a first direction, the first direction is perpendicular to a direction from the first display panel to the second display panel, and the first direction is parallel to a light emitting surface of the display panel.

5. The splicing display module according to claim 4, characterized in that: The joint seam has a center line extending along the first direction, and the axial center line of the cylindrical lens coincides with the center line.

6. The splicing display module according to claim 2, characterized in that: The second lens structure comprises: A first lens portion, the first lens portion is disposed on a light-emitting side of the first lens structure, and the first lens portion is configured to totally reflect a portion of light emitted from the first lens structure; The second lens portion is arranged on the light-emitting side of the first lens portion, and the second lens portion is configured to allow part of the light emitted from the first lens portion and the light reflected by the first lens portion to be emitted in a direction perpendicular to the light-emitting surface of the display panel.

7. The splicing display module according to claim 6, characterized in that: The second lens structure includes a strip-shaped transparent body extending along a first direction, wherein the first direction is perpendicular to a direction from the first display panel to the second display panel, and the first direction is parallel to a light emitting surface of the display panel; The transparent body comprises two side surfaces arranged opposite to each other in a second direction, and a light incident surface and a light emitting surface arranged opposite to each other in a light emitting direction of the display panel, wherein the second direction is perpendicular to the first direction and parallel to the light emitting surface of the display panel; The first lens portion includes a plurality of first convex lenses, wherein the first convex lenses are cylindrical lenses extending along the first direction, and a plurality of the first convex lenses are arranged side by side on each of the side surfaces in a direction away from the display panel; The second lens portion includes a second convex lens disposed on the light exiting surface, the second convex lens is a cylindrical lens extending along the first direction, and the orthographic projection of the second convex lens on the display panel completely covers the corresponding joint seam.

8. The splicing display module according to claim 7, characterized in that: The cross section of the transparent body in the light emitting direction of the display panel is trapezoidal, and in the third direction, the length of the light incident surface is smaller than the length of the light emitting surface, and the third direction is parallel to the direction from the first display panel to the second display panel.

9. The splicing display module according to claim 7, characterized in that: Along the direction away from the display panel, the curvature radius of the reflective surface of the plurality of first convex lenses on each of the side surfaces gradually increases.

10. The splicing display module according to claim 7, characterized in that: The plurality of first convex lenses on the two side surfaces are symmetrically arranged.

11. The splicing display module according to claim 7, characterized in that: The first lens structure and the second lens structure are supported by a transparent pillar, and the length of the transparent pillar is a preset value so that the light incident on the first lens portion can be totally reflected.

12. The splicing display module according to claim 7, characterized in that: A transparent adhesive layer is filled between the first lens structure and the second lens structure so that the distance between the first lens structure and the second lens structure is a preset value, so that the light incident on the first lens portion can be totally reflected.

13. The splicing display module according to claim 1, characterized in that: A plurality of pixels are arranged in an array on the display panel. The first edge display area has at least one row or at least one column of pixels, and the second edge display area has at least one row or at least one column of pixels.

14. A splicing display device, characterized in that: A spliced ​​display module comprising any one of claims 1-13.

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