Splicing display device and display terminal

Abstract

The utility model discloses a tiled display device and a display terminal. The splicing display device comprises two display units and a supplementary display module, the two display units are spliced at an included angle, and a splicing seam is formed at the splicing position; the supplementary display module covers the abutted seam and is arranged on one side of the display surface of the display unit, and the display surface of the supplementary display module is located on the surface of the side, away from the display unit, of the supplementary display module; the supplementary display module comprises a first end and a second end which are opposite, the first end is connected with one of the two display units, and the second end is connected with the other one of the two display units. The supplementary display module is arranged at the abutted seam between the display units with the included angle, the supplementary display module can display the picture, the display surface of the supplementary display module and the display surfaces of the display units are located on the same side, and the two ends of the supplementary display module are connected with the two display units correspondingly, so that the supplementary display module can shield the abutted seam; therefore, the black line problem at the abutted seam is improved.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a spliced ​​display device and a display terminal. Background Art

[0002] The spliced ​​display device is formed by splicing at least two display units. By setting the two display units at an angle, the spatial sense of the images or videos in the two display units can be used to present the distance, size, etc. of the object, thereby achieving a three-dimensional display effect for the naked eye.

[0003] There is a seam between the two display units of the angled splicing display device. Since the image cannot be displayed at the seam, a black line will be formed, which affects the display effect of the image.

[0004] Therefore, it is urgent to solve the above technical problems. Utility Model Content

[0005] The present application provides a splicing display device and a display terminal to solve the technical problem that a picture cannot be displayed at a splicing seam, black lines are formed, and the display effect of the picture is affected.

[0006] To solve the above technical problems, the technical solutions provided by this application are as follows:

[0007] The present application provides a splicing display device, the splicing display device comprising:

[0008] Two display units, the two display units are spliced ​​at an angle and a seam is formed at the splicing position;

[0009] A supplementary display module covers the seam, and the supplementary display module is arranged on one side of the display surface of the display unit, and the display surface of the supplementary display module is located on the side surface of the supplementary display module away from the display unit; the supplementary display module includes a first end and a second end opposite to each other, the first end is connected to one of the two display units, and the second end is connected to the other of the two display units.

[0010] In the spliced ​​display device of the present application, the display surface of the supplementary display module includes a curved surface, and the curved surface is located between the first end and the second end.

[0011] In the spliced ​​display device of the present application, the supplementary display module includes a substrate and a plurality of light emitting units, the light emitting units are arranged on the substrate, the surface of the substrate includes an arc surface, and at least some of the light emitting units are arranged corresponding to the arc surface.

[0012] In the spliced ​​display device of the present application, the supplementary display module includes a substrate, a light-emitting unit and a dimming column, the light-emitting unit is arranged on the substrate, the dimming column covers the light-emitting unit, and a curved surface is arranged on the side of the dimming column away from the substrate.

[0013] In the splicing display device of the present application, the supplementary display module includes a first submodule and a second submodule, the first submodule includes the first end and the third end opposite to each other, the second submodule includes the second end and the fourth end opposite to each other, the first submodule and the second submodule are arranged at an angle and the third end and the fourth end are abutted, and the thickness of the first submodule and the thickness of the second submodule are both less than the thickness of the display unit.

[0014] In the spliced ​​display device of the present application, the thickness of the third end is smaller than the thickness of the first end, and the thickness of the fourth end is smaller than the thickness of the second end; or, the side wall of the third end is a slope, the side wall of the fourth end is a slope, and the two slopes are arranged in contact.

[0015] In the spliced ​​display device of the present application, the display unit is a liquid crystal panel, and the supplementary display module is an organic display panel.

[0016] In the spliced ​​display device of the present application, the display unit includes a plurality of display sub-units, and the plurality of display sub-units are spliced ​​along a direction parallel to the display surfaces of the display sub-units.

[0017] In the spliced ​​display device of the present application, the angle is 60 degrees to 120 degrees.

[0018] The present application also provides a display terminal, which includes the above-mentioned splicing display device.

[0019] Beneficial effects: The present application discloses a splicing display device and a display terminal. The splicing display device includes two display units and a supplementary display module. The two display units are spliced ​​at an angle and a seam is formed at the splicing; the supplementary display module covers the seam, and the supplementary display module is arranged on one side of the display surface of the display unit, and the display surface of the supplementary display module is located on the side surface of the supplementary display module away from the display unit; the supplementary display module includes a first end and a second end opposite to each other, the first end is connected to one of the two display units, and the second end is connected to the other of the two display units. The present application arranges a supplementary display module at the seam between the display units at an angle, so that the supplementary display module can display images, the display surface of the supplementary display module is located on the same side as the display surface of the display unit, and the two ends of the supplementary display module are respectively connected to the two display units, so that the supplementary display module can block the seam, thereby improving the black line problem at the seam. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The technical solution and other beneficial effects of the present application will be made apparent by describing in detail the specific implementation methods of the present application in conjunction with the accompanying drawings.

[0021] Figure 1 A schematic diagram of the three-dimensional structure of a first spliced ​​display device provided in an embodiment of the present application;

[0022] Figure 2 for Figure 1 Schematic diagram of the enlarged structure at A in FIG.

[0023] Figure 3 A schematic diagram of the three-dimensional structure of a second spliced ​​display device provided in an embodiment of the present application;

[0024] Figure 4 for Figure 3 Schematic diagram of the enlarged structure at B in FIG.

[0025] Figure 5 A schematic diagram of the three-dimensional structure of a third spliced ​​display device provided in an embodiment of the present application;

[0026] Figure 6 for Figure 5 Schematic diagram of the enlarged structure at C in FIG.

[0027] Figure 7 A schematic diagram of the three-dimensional structure of a fourth spliced ​​display device provided in an embodiment of the present application;

[0028] Figure 8 for Figure 7 Schematic diagram of the enlarged structure at D in FIG.

[0029] Description of reference numerals:

[0030] Display unit 10, angle α, thickness d1 of the display unit, display subunit 11;

[0031] Supplementary display module 20, first end 21, second end 22, substrate 201, light emitting unit 202, dimming column 203, arc surface 20a;

[0032] The first submodule 23 , the third end 231 , the second submodule 24 , the fourth end 241 , the thickness d2 of the first submodule, and the thickness d3 of the second submodule. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present application, and are not used to limit the present application. In the present application, unless otherwise stated, the directional words used, such as "upper" and "lower", generally refer to the upper and lower parts of the device in actual use or working state, specifically the drawing direction in the drawings; and "inside" and "outside" refer to the outline of the device.

[0034] The present application provides a splicing display device, such as Figures 1 to 6 As shown, the spliced ​​display device includes two display units 10 and a supplementary display module 20, the two display units 10 are spliced ​​at an angle α and a seam is formed at the splicing; the supplementary display module 20 covers the seam, and the supplementary display module 20 is arranged on one side of the display surface of the display unit 10, and the display surface of the supplementary display module 20 is located on a side surface of the supplementary display module 20 away from the display unit 10; the supplementary display module 20 includes a first end 21 and a second end 22 opposite to each other, the first end 21 is connected to one of the two display units 10, and the second end 22 is connected to the other of the two display units 10.

[0035] In this embodiment, the display unit 10 may be an LCD panel, an OLED panel, a Mini-LED panel, a Micro-LED panel, etc.

[0036] In this embodiment, the supplementary display module 20 may be an OLED panel, a Mini-LED panel, a Micro-LED panel, etc.

[0037] In this embodiment, the angle α may be 60 to 120 degrees. Exemplarily, the angle α is 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, etc. The angle α may be set according to the angle of the wall on which the spliced ​​display device is placed, and the present application does not limit this.

[0038] In this embodiment, the display units 10 are spliced ​​at an angle, that is, the display surfaces of the two display units 10 are set at an angle, and the display surfaces of the display units 10 are located on the same side of the angle α, so that the same viewer can watch the two display units 10 at the same time.

[0039] In this embodiment, since the two display units 10 are arranged at an angle, a seam is formed at the joint of the two display units 10. The supplementary display module 20 is arranged corresponding to the seam, and the supplementary display module 20 is arranged on one side of the display surface of the display unit 10, and the display surface of the supplementary display module 20 is located on the side of the supplementary display module 20 away from the display unit 10. The display surface of the display unit 10 and the display surface of the supplementary display module 20 together constitute the display surface of the spliced ​​display device.

[0040] The first end 21 and the second end 22 of the supplementary display module 20 are arranged along the width direction of the joint. The first end 21 of the supplementary display module 20 is connected to one display unit 10, and the second end 22 is connected to another display unit 10. For example, the supplementary display module 20 can be connected to the display unit 10 by glue, but is not limited thereto.

[0041] The display unit 10 includes a display area and a non-display area located outside the display area. When the border width of the non-display area of ​​the display unit 10 is wider, the supplementary display module 20 can not only block the seam, but also partially block the non-display area at the border of the display unit 10, thereby further improving the black line problem at the seam.

[0042] In the spliced ​​display device of the present application, Figures 1 to 4 As shown, the display surface of the supplementary display module 20 includes an arc surface 20a, and the arc surface 20a is located between the first end 21 and the second end 22. The arc surface 20a refers to a surface having an arc shape, and the arc shape can be a circular arc or an elliptical arc.

[0043] The supplementary display module 20 may include an arcuate surface 20a and a plane. The first end 21 of the supplementary display module 20 is connected to the display unit 10, and the display surface corresponding to the first end 21 may be a plane, so that the surface of the first end 21 matches the surface of the display unit 10. The second end 22 of the supplementary display module 20 is connected to the display unit 10, and the display surface corresponding to the second end 22 may be a surface, so that the surface of the second end 22 matches the surface of the display unit 10.

[0044] In the spliced ​​display device of the present application, Figure 1 and Figure 2 As shown, the supplementary display module 20 includes a substrate 201 and a plurality of light emitting units 202. The light emitting units 202 are disposed on the substrate 201. The surface of the substrate 201 includes an arc surface 20a. At least part of the light emitting units 202 are disposed corresponding to the arc surface 20a.

[0045] The substrate 201 may be a flexible substrate 201 , and the material of the flexible substrate 201 may be any one of polyimide, polycarbonate, polyethersulfone, polyethylene terephthalate, polyethylene naphthalate, polyarylate, or glass fiber reinforced plastic.

[0046] Both ends of the flexible substrate 201 may be connected to a display unit 10 respectively, and the middle area may be bent along the angle between the two display units 10 to form a corresponding shape, such as a curved surface 20 a.

[0047] The light-emitting unit 202 may be any one of OLED, Mini-LED, Micro-LED, etc. A driving circuit is also provided on the substrate 201 to drive the light-emitting unit 202 to emit light. A plurality of light-emitting units 202 are provided on the substrate 201 and are curved along with the surface of the substrate 201, so that the images can be displayed at the seams to avoid the black line problem.

[0048] Furthermore, the side walls of the first end 21 and the second end 22 of the supplementary display module 20 do not emit light, which may form a dark shadow, affecting the display effect. In response to this, a reflective layer can be provided on the side wall of the supplementary display module 20, which can reflect the light of the display unit 10, thereby improving the dark shadow problem.

[0049] In the spliced ​​display device of the present application, Figure 3 and Figure 4 As shown, the supplementary display module 20 includes a substrate 201, a light emitting unit 202 and a dimming column 203. The light emitting unit 202 is arranged on the substrate 201, the dimming column 203 covers the light emitting unit 202, and a curved surface 20a is arranged on the side of the dimming column 203 away from the substrate 201.

[0050] In this embodiment, the substrate 201 may be a rigid substrate 201 or a flexible substrate 201. The material of the rigid substrate 201 may be glass, glass fiber epoxy laminate (FR-4), etc. The material of the flexible substrate 201 may be any one of polyimide, polycarbonate, polyethersulfone, polyethylene terephthalate, polyethylene naphthalate, polyarylate, or glass fiber reinforced plastic, etc.

[0051] The surface of the substrate 201 is a plane, and the light-emitting units 202 are disposed on the substrate 201 and distributed along the surface of the substrate 201. By setting the surface of the substrate 201 to be a plane, the stress inside the substrate 201 can be reduced, the risk of disconnection of the wiring of the driving circuit can be reduced, and the life of the supplementary display module 20 can be improved.

[0052] In this embodiment, the substrate 201 can be embedded in the joint, and the two ends of the substrate 201 are respectively in contact with the display unit 10. The side wall of the substrate 201 can be parallel to the side wall of the display unit 10, so that the shape of the substrate 201 and the display unit 10 fit. The display surface of the supplementary display module 20 and the display surface of the display unit 10 have a smooth transition, that is, there is no step difference between the display surface of the supplementary display module 20 and the display surface of the display unit 10, thereby improving the display effect.

[0053] The light emitting unit 202 may be any one of OLED, Mini-LED, Micro-LED, etc. A driving circuit is also provided on the substrate 201 to drive the light emitting unit 202 to emit light. By providing the light emitting unit 202 at the seam, the black line problem can be improved.

[0054] In this embodiment, the dimming rod 203 abuts against the side walls of the two display units 10, and the orthographic projection of the dimming rod 203 on the substrate 201 may overlap with the substrate 201. The dimming rod 203 may be made of transparent plastic, glass or the like.

[0055] The dimming column 203 has an arc surface 20a on one side facing away from the substrate 201, and the dimming column 203 is in contact with the light emitting unit 202 on one side. The light emitted by the light emitting unit 202 can be refracted in the dimming column 203, and thus dispersed on the surface of the dimming column 203 to form an arc display surface.

[0056] Optionally, in order to improve the smoothness of the surfaces of the display unit 10 and the dimming rod 203 , the display surface of the display unit 10 may be tangent to the arc surface 20 a of the dimming rod 203 .

[0057] Through the above arrangement, this embodiment can not only improve the black line problem, but also make the display screen of the spliced ​​display device at the splicing seam transition naturally, thereby improving the display effect.

[0058] In the spliced ​​display device of the present application, Figures 5 to 8 As shown, the supplementary display module 20 includes a first submodule 23 and a second submodule 24, the first submodule 23 includes a first end 21 and a third end 231 opposite to each other, the second submodule 24 includes a second end 22 and a fourth end 241 opposite to each other, the first submodule 23 and the second submodule 24 are arranged at an angle and the third end 231 and the fourth end 241 are abutted, and the thickness d2 of the first submodule and the thickness d3 of the second submodule are both smaller than the thickness d1 of the display unit.

[0059] In this embodiment, the first submodule 23 and the second submodule 24 can be panels of the same type, and the shapes and sizes of the first submodule 23 and the second submodule 24 can be the same. Through the above configuration, the types of materials in the production process can be reduced, and the production cost can be reduced.

[0060] In this embodiment, the supplementary display module 20 includes a first submodule 23 and a second submodule 24, the first end 21 of the supplementary display module 20 is the first end 21 of the first submodule 23, and the second end 22 of the supplementary display module 20 is the second end 22 of the second submodule 24. The first submodule 23 also includes a third end 231 opposite to the first end 21, and the second submodule 24 also includes a fourth end 241 opposite to the second end 22.

[0061] The first end 21 of the first submodule 23 is connected to one display unit 10 , and the display surface of the first submodule 23 is parallel to the display surface of the display unit 10 connected to the first submodule 23 .

[0062] The second end 22 of the second submodule 24 is connected to another display unit 10 , and the display surface of the second submodule 24 is parallel to the display surface of the display unit 10 connected to the second submodule 24 .

[0063] The third end 231 of the first submodule 23 abuts against the fourth end 241 of the second submodule 24. Since the display surface of the first submodule 23 is parallel to the display surface of one of the display units 10, and the display surface of the second submodule 24 is parallel to the display surface of the other display unit 10, the angle formed by the first submodule 23 and the second submodule 24 and the angle α formed by the two display units 10 may be equal.

[0064] In this embodiment, thickness refers to the dimension in the direction perpendicular to the display surface. For example, the thickness d1 of the display unit refers to the dimension perpendicular to the display surface of the display unit 10, the thickness d2 of the first submodule refers to the dimension perpendicular to the display surface of the first submodule 23, and the thickness d3 of the second submodule refers to the dimension perpendicular to the display surface of the second submodule 24.

[0065] It should be understood that when two display units 10 are spliced, the thickness d1 of the display unit and the width of the splicing seam form a triangle. When the splicing angle α is constant, the thicker the thickness d1 of the display unit, the wider the splicing seam.

[0066] In this embodiment, the thickness d2 of the first submodule and the thickness d3 of the second submodule are both smaller than the thickness d1 of the display unit, thereby reducing the width of the joint and improving the black line problem at the joint.

[0067] Furthermore, in the spliced ​​display device of the present application, if Figure 5 and Figure 6 As shown, the thickness of the third end 231 is less than the thickness of the first end 21, and the thickness of the fourth end 241 is less than the thickness of the second end 22. By making the thickness of the third end 231 less than the thickness of the first end 21, and the thickness of the fourth end 241 less than the thickness of the second end 22, the width of the joint can be further reduced.

[0068] It should be understood that when the thicknesses of the first submodule 23 and the second submodule 24 are uneven, the thickness d2 of the first submodule is the maximum thickness of the first submodule 23 , and the thickness d3 of the second submodule is the maximum thickness of the second submodule 24 .

[0069] In this embodiment, the shape of the first submodule 23 may be wedge-shaped, and the shape of the second submodule 24 may be wedge-shaped, but is not limited thereto. In the direction from the first end 21 to the third end 231, the thickness d2 of the first submodule gradually decreases. In the direction from the second end 22 to the fourth end 241, the thickness d3 of the second submodule gradually decreases. Through the above arrangement, the width of the joint can be further reduced.

[0070] Furthermore, the side walls of the first submodule 23 and the side walls of the second submodule 24 do not emit light, which may form a dark shadow, affecting the display effect. In response to this, a reflective layer can be set on the side walls of the first submodule 23 and the side walls of the second submodule 24, and the reflective layer can reflect the light of the display unit 10, thereby improving the dark shadow problem.

[0071] Optionally, in the spliced ​​display device of the present application, Figure 7 and Figure 8 As shown, the side wall of the third end 231 is an inclined surface, and the side wall of the fourth end 241 is an inclined surface, and the two inclined surfaces are arranged in contact.

[0072] In this embodiment, the thickness of the third end 231 may be equal to the thickness of the first end 21, and the thickness of the fourth end 241 may be equal to the thickness of the second end 22. The side wall of the third end 231 is an inclined surface, which means that the side wall of the third end 231 forms an acute angle with the display surface of the first submodule 23, and the side wall of the fourth end 241 is an inclined surface, which means that the side wall of the fourth end 241 forms an acute angle with the display surface of the second submodule 24. Through the above arrangement, the side wall of the third end 231 and the side wall of the fourth end 241 can be arranged in contact with each other.

[0073] It should be noted that the angle of the acute angle of the inclined surface can be set according to the angle α between the two display units 10, and the angle of the acute angle of the inclined surface can be α / 2. For example, when the angle α is 60 degrees, the angles of the acute angles of the two inclined surfaces can both be α / 2, that is, 30 degrees. When the angle α is other angles, the angle of the acute angle of the inclined surface can be set accordingly, so that the side wall of the third end 231 and the side wall of the fourth end 241 are in contact.

[0074] In the spliced ​​display device of the present application, the display unit 10 is a liquid crystal panel. The process of the liquid crystal panel is mature and the cost is low, which can reduce the cost of the entire spliced ​​display device.

[0075] The supplementary display module 20 is an organic display panel. The light-emitting units 202 of the organic display panel can be evenly distributed on the entire substrate 201, and the distance between the light-emitting center of the light-emitting unit 202 and the side wall of the substrate 201 is small, that is, the frame of the organic display panel is narrow, so that the seam can be covered without increasing the width of the non-display area in the splicing direction.

[0076] In the spliced ​​display device of the present application, the display unit 10 includes a plurality of display sub-units 11 , and the plurality of display sub-units 11 are spliced ​​along a direction parallel to the display surfaces of the display sub-units 11 .

[0077] In this embodiment, the display subunit 11 can be any one of an LCD panel, an OLED panel, a Mini-LED panel, a Micro-LED panel, etc. By splicing a plurality of display subunits 11 into a display unit 10, the size of the display unit 10 can be increased to meet the application requirements of large-screen display. At the same time, since the large-size display unit 10 has a high process difficulty and high cost, splicing a plurality of display subunits 11 into a display unit 10 can reduce the cost of the display unit 10.

[0078] In this embodiment, the display subunits 11 are spliced ​​along a direction parallel to the display surfaces of the display subunits 11 , that is, the display surfaces of the multiple display subunits 11 are parallel to each other, and the display surfaces of the multiple display subunits 11 together constitute the display surface of the display unit 10 .

[0079] It should be noted that, although two adjacent display sub-units 11 can be seamlessly spliced, black lines may still be formed when the width of the non-display area of ​​the two adjacent display sub-units 11 in the splicing direction is large. In response to this, a second supplementary module can be provided at the splicing of the two display sub-units 11, and the display surface of the second supplementary module can be a plane. The display surface of the second supplementary module is located on the side of the second supplementary module away from the display sub-unit 11, and the display surface of the second supplementary module and the display surface of the display sub-unit 11 together constitute the display surface of the display unit 10. The width of the non-display area of ​​the second supplementary module in the splicing direction is smaller than the width of the non-display area of ​​the display sub-unit 11 in the splicing direction.

[0080] Furthermore, in order to avoid the formation of shadows due to the lack of light at the side walls of the second supplementary module, a reflective layer may be provided on the side walls of the second supplementary module. The reflective layer may reflect the light of the display subunit 11, thereby improving the shadow problem.

[0081] When the display subunit 11 is any one of an OLED panel, a Mini-LED panel, a Micro-LED panel, etc., the frame of the display subunit 11 is narrow and the seam between two adjacent display subunits 11 is small, so the second supplementary module may not be provided.

[0082] When the display subunit 11 is an LCD panel, due to the large frame width of the LCD panel, a black line will be formed between two adjacent display subunits 11. In response to this, a second supplementary module can be set between two adjacent display subunits 11. The second supplementary module can be a panel with a smaller frame, such as an OLED panel, a Mini-LED panel, a Micro-LED panel, etc. Through the above arrangement, the black line problem between the multiple display subunits 11 of the display unit 10 can be improved.

[0083] The present application also provides a display terminal, which includes the above-mentioned splicing display device.

[0084] In this embodiment, the display terminal can be a product with display function such as a TV wall. The display terminal can adapt to the angle of the wall of the building, and use the spatial sense of the image or video in the two display units 10 to present the distance, size, etc. of the object, thereby achieving a naked eye three-dimensional display effect.

[0085] The present application sets a supplementary display module 20 at the seam between the display units 10 at an angle. The supplementary display module 20 can display images. The display surface of the supplementary display module 20 and the display surface of the display unit 10 are located on the same side, and the two ends of the supplementary display module 20 are respectively connected to the two display units 10, so that the supplementary display module 20 can block the seam, thereby improving the black line problem at the seam.

[0086] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0087] The splicing display device and display terminal provided in the embodiments of the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solutions and core ideas of the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A splicing display device, characterized in that: include: Two display units, the two display units are spliced ​​at an angle and a seam is formed at the splicing position; A supplementary display module covers the seam, and the supplementary display module is arranged on one side of the display surface of the display unit, and the display surface of the supplementary display module is located on the side surface of the supplementary display module away from the display unit; the supplementary display module includes a first end and a second end opposite to each other, the first end is connected to one of the two display units, and the second end is connected to the other of the two display units.

2. The splicing display device according to claim 1, characterized in that: The display surface of the supplementary display module includes a curved surface, and the curved surface is located between the first end and the second end.

3. The splicing display device according to claim 2, characterized in that: The supplementary display module includes a substrate and a plurality of light emitting units, wherein the light emitting units are arranged on the substrate, and a surface of the substrate includes an arc-shaped surface, and at least part of the light emitting units are arranged corresponding to the arc-shaped surface.

4. The splicing display device according to claim 2, characterized in that: The supplementary display module comprises a substrate, a light emitting unit and a dimming column. The light emitting unit is arranged on the substrate, the dimming column covers the light emitting unit, and a curved surface is arranged on a side of the dimming column away from the substrate.

5. The splicing display device according to claim 1, characterized in that: The supplementary display module includes a first submodule and a second submodule, the first submodule includes the first end and the third end opposite to each other, the second submodule includes the second end and the fourth end opposite to each other, the first submodule and the second submodule are arranged at an angle and the third end and the fourth end are abutted, and the thickness of the first submodule and the thickness of the second submodule are both less than the thickness of the display unit.

6. The splicing display device according to claim 5, characterized in that: The thickness of the third end is smaller than that of the first end, and the thickness of the fourth end is smaller than that of the second end; or, the side wall of the third end is a slope, and the side wall of the fourth end is a slope, and the two slopes are arranged in contact.

7. The splicing display device according to claim 1, characterized in that: The display unit is a liquid crystal panel, and the supplementary display module is an organic display panel.

8. The splicing display device according to claim 1, characterized in that: The display unit includes a plurality of display sub-units, and the plurality of display sub-units are spliced ​​along a direction parallel to a display surface of the display sub-unit.

9. The splicing display device according to claim 1, characterized in that: The angle is 60 degrees to 120 degrees.

10. A display terminal, characterized in that: It comprises the splicing display device as described in any one of claims 1 to 9.

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