Display device, display panel and method for determining number of display panels

Abstract

Embodiments of the present application provide a display device, a display panel and a display panel quantity determination method, wherein the display device comprises a mounting frame and a plurality of display panels; the display panel is a flexible display panel and has a half-shuttle shape; the plurality of display panels are stretched into arc surfaces and are fixedly spliced to the mounting frame; the vertices of the plurality of display panels are concentrated at a point, and the arc-shaped sides of two adjacent display panels are spliced together; and the plurality of display panels and the mounting frame jointly form the display device. The display device of the embodiments of the present application comprises a mounting frame and a plurality of display panels. Since the display panel is a flexible display panel, the display panel can be deformed when being fixedly spliced to the mounting frame, and can be stretched into an arc surface, so that the display panel can better fit the outer surface of the mounting frame, and a display device with a flat surface is formed, thereby improving the display effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a display device, a display panel and a display panel quantity determination method. BACKGROUND

[0002] With the continuous development of display technology, the application of arc-shaped display is increasingly widespread. In the related art, an arc-shaped display device is usually manufactured by first manufacturing single non-stretchable splicing units into small quadrilaterals, trapezoids, triangles, hexagons, etc., and then fixing the splicing units on a frame through splicing to realize the preparation of the arc-shaped display device. In this way, the number of splicing units is large, the process is complex, and the display screen is prone to be uneven during splicing, thereby resulting in an undesirable display effect. SUMMARY

[0003] Embodiments of the present application aim to provide a display device, a display panel and a display panel quantity determination method to improve the display effect. The specific technical solutions are as follows:

[0004] An embodiment of the first aspect of the present application provides a display device, which comprises a mounting frame and a plurality of display panels; the display panels are flexible display panels and have a half-shuttle shape; the plurality of display panels are stretched into an arc surface and fixed to the mounting frame by splicing; the vertices of the plurality of display panels are concentrated at one point, and the arc-shaped sides of adjacent two display panels are spliced together; and the plurality of display panels and the mounting frame jointly constitute the display device.

[0005] In some embodiments of the present application, the display panels are spliced to the inner surface or the outer surface of the mounting frame.

[0006] In some embodiments of the present application, the display panels have a light-emitting side and a backlight side, and the backlight side is arranged towards the mounting frame.

[0007] The display panel is provided with a plurality of pixel units on the light-emitting side; and the display panel is provided with a control assembly on the backlight side.

[0008] The mounting frame has a hollow region, and the control assembly passes through the mounting frame through the hollow region.

[0009] In some embodiments of the present application, the mounting frame comprises a first mounting frame in the shape of a hemisphere; and the plurality of display panels comprise a plurality of first display panels, which have the same shape.

[0010] The plurality of first display panels are stretched into arc surfaces and fixedly connected to the first mounting frame; the vertices of the plurality of first display panels are concentrated at the vertex of the first mounting frame in a hemispherical shape, and the arc-shaped sides of adjacent two first display panels are sequentially spliced; the plurality of first display panels cover the outer surface of the first mounting frame and jointly form a first hemispherical display device with the first mounting frame.

[0011] In some embodiments of the present application, the mounting frame further comprises a second mounting frame in a hemispherical shape; the plurality of display panels further comprise a plurality of second display panels, which are identical in shape; and the display device further comprises a fixing ring.

[0012] The second mounting frame is identical to the first mounting frame; and the second display panels are identical to the first display panels.

[0013] The plurality of second display panels are stretched into arc surfaces and fixedly connected to the second mounting frame; the vertices of the plurality of second display panels are concentrated at the vertex of the second mounting frame in a hemispherical shape, and the arc-shaped sides of adjacent two second display panels are sequentially spliced; the plurality of second display panels cover the outer surface of the second mounting frame and jointly form a second hemispherical display device with the second mounting frame.

[0014] The first hemispherical display device and the second hemispherical display device are fixedly connected through the fixing ring to form a spherical display device.

[0015] In some embodiments of the present application, the first display panels and the second display panels each have a light-emitting side and a backlight side, and the light-emitting side faces the outside of the first mounting frame and the second mounting frame.

[0016] The first display panels and the second display panels each comprise a display part and a connecting part connected in sequence; the display part covers the outer surface of the first mounting frame or the second mounting frame; and the connecting part is bent towards the backlight side at the bottom of the first mounting frame or the second mounting frame to form a bending area and a reverse bending area, so that the reverse bending area of the connecting part is located inside the first mounting frame or the second mounting frame.

[0017] The reverse bending area of the connecting part is provided with a control unit on the side away from the display part.

[0018] In some embodiments of the present application, the display part comprises a flexible substrate, a display functional layer and a flexible cover plate arranged in sequence.

[0019] The bending area of the connecting part comprises a flexible substrate, a display functional layer and a flexible cover plate extended from the display part.

[0020] The reverse folding area of the connecting part comprises a flexible substrate and a flexible cover plate extended from the bending area, wherein the flexible cover plate covers a part of the flexible substrate close to the bending area;

[0021] The flexible cover plate of the reverse folding area of the connecting part is used to connect with the fixing ring;

[0022] The side of the flexible substrate away from the display part and the area not covered by the flexible cover plate are used to set the control unit.

[0023] In some embodiments of the present application, the connecting part comprises a circuit board area and a chip area, and the circuit board area is located on the side of the chip area away from the bending area;

[0024] The control unit comprises a flexible circuit board and a chip, wherein the flexible circuit board is arranged in the circuit board area, and the chip is arranged in the chip area.

[0025] In some embodiments of the present application, the display part has a plurality of pixel units;

[0026] The arc-shaped side edges of the first display panel and the second display panel and the line connecting the vertex and the midpoint of the bottom edge are evenly divided into m parts by virtual division points.

[0027] The two arc-shaped side edges of the first display panel correspond to the first virtual division point and the second virtual division point respectively, the two arc-shaped side edges of the second display panel correspond to the first virtual division point and the second virtual division point respectively, and the line connecting the vertex and the midpoint of the bottom edge of the first display panel and the second display panel corresponds to the third virtual division point;

[0028] The first virtual division point, the third virtual division point and the second virtual division point are sequentially connected to form m-1 virtual parallel lines.

[0029] The center of the pixel unit is located on the virtual parallel line, a plurality of pixel units on the same virtual parallel line are arranged at intervals, and a plurality of pixel units on different virtual parallel lines are arranged into several columns in a direction perpendicular to the bottom edge of the first display panel or the second display panel.

[0030] The pixel spacing between adjacent pixel units is equal.

[0031] In some embodiments of the present application, the display part comprises a bridge area, a plurality of opening areas, a plurality of island areas and two GOA unit areas.

[0032] The two GOA unit regions are respectively located at the two arc-shaped sides; each of the two GOA unit regions is provided with m-1 GOA units, and the centers of the m-1 GOA units are respectively arranged on m-1 virtual latitude lines; two GOA units located on the same virtual latitude line are respectively used to drive different pixel units on the same virtual latitude line.

[0033] The bridge region, the plurality of opening regions and the plurality of island regions are located between the two GOA unit regions; the plurality of island regions are arranged at intervals and connected to each other through the bridge region, and the opening region is located between two adjacent island regions; each island region is provided with at least one pixel unit.

[0034] In some embodiments of the present application, there is a first joint seam between two adjacent first display panels, and a second joint seam between two adjacent second display panels, and the pitch of the first joint seam and the pitch of the second joint seam are equal to the pixel pitch.

[0035] In some embodiments of the present application, the fixing ring is located inside the spherical display device, and the fixing ring is divided into a first part and a second part along the height direction thereof;

[0036] The first part is fixedly connected with the connecting part of the plurality of first display panels of the first hemispherical display device; and the second part is fixedly connected with the connecting part of the plurality of second display panels of the second hemispherical display device.

[0037] In some embodiments of the present application, the outer wall of the first part of the fixing ring is fixedly connected with the side of the flexible cover plate of the folding area of the first display panel away from the display part; and the first part is arranged at intervals with the control unit of the first display panel.

[0038] The outer wall of the second part of the fixing ring is fixedly connected with the side of the flexible cover plate of the folding area of the second display panel away from the display part; and the second part is arranged at intervals with the control unit of the second display panel.

[0039] Embodiments of the second aspect of the present application propose a display panel applied to the spherical display device of the first aspect; the display panel is a flexible display panel and has a half-shuttle shape.

[0040] Embodiments of the third aspect of the present application propose a method for determining the number of display panels, which is used to determine the number of display panels in the display device of any one of the embodiments of the first aspect; the mounting rack is an arc-shaped mounting rack, and the arc-shaped mounting rack and the plurality of display panels constitute an arc-shaped display device, and the method comprises:

[0041] A plurality of candidate values n of the number of shares are preset;

[0042] For each candidate number of parts n, the following steps are performed to obtain the strain variable corresponding to each undetermined number of parts n:

[0043] The model of the arc-shaped display device is evenly divided into n parts to form n spherical semi-shuttle-shaped patterns, and the radius of the model of the arc-shaped display device is D; one spherical semi-shuttle-shaped pattern is mapped to a two-dimensional plane to obtain a planar semi-shuttle-shaped pattern; the length of each side of the spherical semi-shuttle-shaped pattern is equal to the length of each side of the planar semi-shuttle-shaped pattern; the arc length of the planar semi-shuttle-shaped pattern is taken as a part of the circumference of a planar great circle, and the centers of the two planar great circles and the bottom side of the planar semi-shuttle-shaped pattern are located on the same horizontal line; the centers of the planar great circles and the top point of the planar semi-shuttle-shaped pattern are connected to obtain a planar sector pattern; the planar sector pattern has an angle θ and a radius R; a relationship between n and θ is obtained: The area of the planar semi-shuttle-shaped pattern The area of the spherical semi-shuttle-shaped pattern The strain variable of the planar semi-shuttle-shaped pattern converted into the spherical semi-shuttle-shaped pattern

[0044]

[0045] The number n corresponding to the minimum strain variable obtained is determined as the number of display panels in the display device.

[0046] In some embodiments of the present application, the display device is a hemispherical display device, and the number of display panels in the hemispherical display device is 6 or 7.

[0047] The present application has the following beneficial effects:

[0048] The display device of the present application includes a mounting frame and a plurality of display panels. Since the display panels are flexible display panels, the display panels can be deformed and stretched into an arc surface when being fixed to the mounting frame, so that the display panels can better fit the outer surface of the mounting frame to form a display device with a flat surface, thereby improving the display effect.

[0049] The display panels of the present application are flexible display panels in a semi-shuttle shape, and a plurality of display panels can be used to assemble an arc-shaped display device. During the assembly process, the display panels can be deformed and stretched into an arc surface, so that the surface of the display device is more flat, thereby improving the display effect.

[0050] The third aspect of the present application provides a method for determining the number of display panels. By presetting a plurality of candidate numbers of parts n, and performing the above steps for each candidate number of parts n to obtain the strain variable corresponding to each undetermined number of parts n, the number n corresponding to the minimum strain variable obtained is determined as the number of display panels in the display device, thereby solving the problem of insufficient strain variable when the display panels are assembled to the mounting frame.

[0051] Of course, practicing any of the products or methods of the present application does not necessarily require that all of the advantages described above be achieved. BRIEF DESCRIPTION OF DRAWINGS

[0052] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art based on these drawings.

[0053] Figure 1 A schematic diagram of splicing of the display device of the embodiment of the present application;

[0054] Figure 2 A schematic diagram of the structure of the first hemispherical display device of the embodiment of the present application;

[0055] Figure 3 A schematic diagram of stretching of the first display panel in the embodiment of the present application;

[0056] Figure 4 A schematic diagram of the structure of the first mounting frame in the embodiment of the present application;

[0057] Figure 5 A schematic diagram of splicing of the first display panel in the embodiment of the present application on the first mounting frame;

[0058] Figure 6 A schematic diagram of the structure of the second hemispherical display device of the embodiment of the present application;

[0059] Figure 7 A schematic diagram of the structure of the spherical display device of the embodiment of the present application;

[0060] Figure 8 A schematic diagram of the structure of the fixing ring in the embodiment of the present application;

[0061] Figure 9 A schematic diagram of the structure of the first display panel and the second display panel in the embodiment of the present application;

[0062] Figure 10 A partial sectional view of the spherical display device of the embodiment of the present application;

[0063] Figure 11 A partial enlarged schematic diagram of Figure 9 ;

[0064] Figure 12 A flow chart of the method for determining the number of display panels of the embodiment of the present application;

[0065] Figure 13This is a mathematical model diagram of the spherical display device according to an embodiment of this application;

[0066] Figure 14 A schematic diagram illustrating the mapping of a spherical semi-spindle pattern onto a two-dimensional plane to obtain a planar semi-spindle pattern;

[0067] Figure 15 Schematic diagrams of planar shuttle-shaped patterns for different values ​​of n;

[0068] Figure 16 for Figure 14 A magnified view of a portion of the image;

[0069] Figure 17 for Figure 16 A magnified view of a portion of the image;

[0070] Figure 18 This is a graph showing the relationship between n and the dependent variable ε.

[0071] Explanation of reference numerals in the attached drawings: Mounting bracket 1; Cutout area 11; Display panel 2; Control component 21; First hemispherical display device 10; First mounting bracket 110; First display panel 120; Second hemispherical display device 20; Second mounting bracket 210; Second display panel 220; Fixing ring 300; First part 310; Second part 320; Display part 400; Connecting part 600; Bending area 610; Reverse bending area 620; Control unit 700; Flexible circuit board 710; Chip 720; C-film 730; Flexible substrate 810; Display function layer 820; Driving circuit layer 821; Light-emitting device layer 822; Pixel unit 8221; Encapsulation layer 823; Flexible cover plate 830; Back film 840; GOA unit 900; Circuit board area C1; Chip area C2; Bridge area B1; Opening area B2; Island area B3; GOA unit area B4; Pixel pitch d. Detailed Implementation

[0072] 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 based on this application are within the scope of protection of the present invention.

[0073] In related technologies, curved display devices involve a large number of splicing units and complex processes, which can easily lead to unevenness in the display screen during splicing, resulting in unsatisfactory display effects. To address these technical problems, this application provides a display device, a display panel, and a method for determining the number of display panels.

[0074] like Figure 1 As shown, Figure 1For the splicing schematic diagram of the display device of the embodiments of the present application, the embodiments of the first aspect of the present application provide a display device, which comprises a mounting frame 1 and a plurality of display panels 2. The display panels 2 are flexible display panels and are in a half-shuttle shape. The plurality of display panels 2 are stretched into arc surfaces and are spliced and fixed to the mounting frame 1. The vertices of the plurality of display panels 2 are concentrated at one point, and the arc-shaped sides of two adjacent display panels 2 are spliced together. The plurality of display panels 2 and the mounting frame 1 jointly constitute the display device.

[0075] It can be understood that the arc-shaped sides of the display panel 2 are two symmetrically distributed sides, the sides intersecting with the two arc-shaped sides are the bottom sides of the display panel 2, and the vertex is the point where the two arc-shaped sides intersect. Figure 1 In the illustrated embodiments, one display panel 2 is fixed on the mounting frame 1.

[0076] The display device of the embodiments of the present application comprises a mounting frame 1 and a plurality of display panels 2. Since the display panels 2 are flexible display panels, the display panels 2 can be deformed when spliced and fixed to the mounting frame 1, stretched into arc surfaces, so that the display panels 2 can better fit the outer surface of the mounting frame 1, forming a display device with a flat surface, thereby improving the display effect.

[0077] Further, the display panel 2 can be spliced on the inner surface or the outer surface of the mounting frame 1, which can be set according to actual needs. The display panel 2 can be fixed on the mounting frame 1 by means of adhesion.

[0078] In some embodiments of the present application, as shown in the figure, Figure 1 The display panel 2 has a light-emitting side and a backlight side, and the backlight side is arranged towards the mounting frame 1. The light-emitting side of the display panel 2 is provided with a plurality of pixel units (not shown in the figure). The backlight side of the display panel 2 is provided with a control component 21. The mounting frame 1 has a hollow area 11, and the control component 21 passes through the mounting frame 1 through the hollow area 11, so that the control component 21 does not block the display of the display panel 2. Specifically, the control component 21 can include a chip, a flexible circuit board, a chip on film, etc.

[0079] Specifically, the mounting frame 1 can be a fan-shaped arc surface, a hemispherical shape, a spherical shape, etc. The present application does not limit this. Hereinafter, the mounting frame 1 is taken as a hemispherical mounting frame and a spherical mounting frame as an example for further detailed description.

[0080] As shown in the figure, Figures 2 to 5 , Figure 2 For the structure schematic diagram of the first hemispherical display device 10 of the embodiments of the present application, Figure 3 For the stretching schematic diagram of the first display panel 120 in the embodiments of the present application, Figure 4 For the structure schematic diagram of the first mounting frame 110 in the embodiments of the present application, Figure 5This is a schematic diagram of a first display panel 120 spliced ​​on a first mounting frame 110 in an embodiment of this application. In some embodiments of this application, the mounting frame 1 includes a hemispherical first mounting frame 110, and the multiple display panels 1 include multiple first display panels 120. Specifically, the first display panel 120 is a flexible display panel, which is semi-rotary shaped; the multiple first display panels 120 have the same shape; the multiple first display panels 120 are stretched into arc surfaces and spliced ​​and fixed to the first mounting frame 110; the vertices of the multiple first display panels 120 are concentrated at the vertices of the hemispherical first mounting frame 110, and the arc-shaped sides of two adjacent first display panels 120 are spliced ​​together in sequence; the multiple first display panels 120 cover the outer surface of the first mounting frame 110 and together with the first mounting frame 110 constitute a first hemispherical display device 10.

[0081] Understandably, the vertex of the hemispherical first mounting bracket 110 is the highest point of its hemispherical surface from its circular base.

[0082] The first hemispherical display device 10 of this application embodiment includes a hemispherical first mounting frame 110 and a plurality of first display panels 120. Since the first display panels 120 are flexible display panels, they can deform and stretch into an arc surface when assembled and fixed to the first mounting frame 110. This allows the first display panels 120 to better fit the outer surface of the first mounting frame 110, forming a flat first hemispherical display device 10, thereby improving the display effect. In addition, the display device of this application embodiment has a minimum of three first display panels 120, which is a small number, facilitates assembly, and helps improve production efficiency.

[0083] Optionally, such as Figure 3 As shown, the first display panel 120 includes a display portion 400 and a connecting portion 600. During the assembly of the first display panel 120 and the first mounting bracket 110, the connecting portion 600 is bent into the interior of the first mounting bracket 110. (See also...) Figure 5 The connecting part 600 will be described in detail later.

[0084] Optionally, such as Figure 3 As shown, the width of the side of the connecting part 600 away from the display part 400 is smaller than the width of the side of the connecting part 600 close to the display part 400, and the two sides of the connecting part 600 form an obtuse angle with the side of the connecting part 600 away from the display part 400, which helps to reduce the gap between the joints of adjacent connecting parts 600 after bending.

[0085] like Figure 4As shown, the surface of the first mounting frame 110 can be a complete hemispherical surface; in some other embodiments of the present application, the surface of the first mounting frame 110 can also be hollowed out in a pattern to reduce the weight of the first hemispherical display device 10, which is not limited in the present application. Optionally, as shown in FIG. 1C, the surface of the first mounting frame 110 can be marked with boundary marks in a preferred segmentation manner to form a plurality of marking lines. Since the first display panel 120 will deform during the process of being fixed on the first mounting frame 110, the marking lines can serve as limiting lines to facilitate the accuracy of splicing and thus improve the display quality. Figure 4 As shown, the surface of the first mounting frame 110 can be marked with boundary marks in a preferred segmentation manner to form a plurality of marking lines. Since the first display panel 120 will deform during the process of being fixed on the first mounting frame 110, the marking lines can serve as limiting lines to facilitate the accuracy of splicing and thus improve the display quality.

[0086] The first hemispherical display device 10 of the embodiments of the present application can be directly placed on a desktop or other carrier for display, and the carrier is used to shield the bottom surface of the first hemispherical display device 10; or the opening of the first hemispherical display device 10 can be sealed to make it applicable to more scenarios, which is not limited in the present application.

[0087] As shown in FIG. 1C, the first hemispherical display device 10 can be connected with a second hemispherical display device 20 to form a spherical display device. Figures 6 to 8 As shown in FIG. 1C, the first hemispherical display device 10 can be connected with a second hemispherical display device 20 to form a spherical display device. Figure 6 FIG. 2 is a structural schematic diagram of the second hemispherical display device 20 of the embodiments of the present application, Figure 7 FIG. 3 is a structural schematic diagram of a spherical display device of the embodiments of the present application, Figure 8 FIG. 3 is a structural schematic diagram of a spherical display device of the embodiments of the present application, the mounting frame 1 further comprises a hemispherical second mounting frame 210, the plurality of display panels 2 further comprises a plurality of second display panels 220, the plurality of second display panels 220 are identical in shape; the display device further comprises a fixing ring 300; the second mounting frame 210 is identical to the first mounting frame 110; the second display panel 220 is identical to the first display panel 120; the plurality of second display panels 220 are stretched into arc surfaces and spliced and fixed on the second mounting frame 210; the vertices of the plurality of second display panels 220 are concentrated at the vertex of the hemispherical second mounting frame 210, and the arc-shaped side edges of adjacent two second display panels 220 are sequentially spliced together; the plurality of second display panels 220 cover the outer surface of the second mounting frame 210 and together with the second mounting frame 210 form the second hemispherical display device 20; the first hemispherical display device 10 and the second hemispherical display device 20 are fixedly connected through the fixing ring 300 to form the spherical display device. The spherical display device can display a picture in 360 degrees, so that the application range of the display device of the present application is wider.

[0088] Optionally, the structure of the second display panel 220 can refer to FIG. 1B, the second display panel 220 is identical to the first display panel 120; the structure of the second mounting frame 210 can refer to FIG. 1A, the second mounting frame 210 is identical to the first mounting frame 110. Figure 3 Figure 4 Optionally, the structure of the second display panel 220 can refer to FIG. 1B, the second display panel 220 is identical to the first display panel 120; the structure of the second mounting frame 210 can refer to FIG. 1A, the second mounting frame 210 is identical to the first mounting frame 110. Figure 7 ​The structural diagram of the spherical display device is shown, and the fixing ring 300 is located inside the spherical display device to avoid affecting the display. Specifically, the fixing ring 300 can be located on the side of the connecting part 600 away from the display part 400. When fixing the first hemispherical display device 10 and the second hemispherical display device 20, the bottom edges of the first display panel 120 and the second display panel 220 can be aligned one by one, so that the first joint seam between the first display panel 120 and the second joint seam between the second display panel 220 can be on the same arc, thereby achieving better display effect.

[0089] As shown in Figure 8 , the fixing ring 300 is divided into a first part 310 and a second part 320 along its height direction, and the first part 310 and the second part 320 of the fixing ring 300 can be an integral structure. The junction of the first part 310 and the second part 320 is provided with a mark line, which can play a limiting role in the assembly process, facilitating assembly, and finally assembling into an ideal spherical display device. In the assembly process, fixing glue can be coated on the outer walls of the first part 310 and the second part 320 to achieve the adhesive fixing of the fixing ring 300 and the first hemispherical display device 10 and the second hemispherical display 20. The fixing method of the fixing ring 300 will be described in detail below.

[0090] In some embodiments of the present application, the first display panel 120 and the second display panel 220 each have a light-emitting side and a backlight side, and the light-emitting side faces the outside of the first mounting frame 110 and the second mounting frame 210. As shown in Figure 9 , the first display panel 120 and the second display panel 220 are arranged in a hemispherical shape, and the first display panel 120 and the second display panel 220 are connected by the connecting part 600. Figure 9 is a structural diagram of the first display panel 120 and the second display panel 220 in the embodiments of the present application. In the figure, O is the apex of the first display panel 120 and the second display panel 220, arc OA and arc OA' are two arc sides of the first display panel 120 and the second display panel 220, and AA' is the bottom edge of the first display panel 120 and the second display panel 220. The first display panel 120 and the second display panel 220 each include a display part 400 and a connecting part 600 connected in sequence, the connecting part 600 includes a bending area 610 and a reverse bending area 620, and the bending area 610 is located on the side of the reverse bending area 620 close to the display part 400. Specifically, OAA' is the display part 400, AA' is the boundary between the display part 400 and the connecting part 600, and A2A2' is the boundary between the bending area 610 and the reverse bending area 620. As shown in Figure 7 and Figure 10 , the first display panel 120 and the second display panel 220 are arranged in a hemispherical shape, and the first display panel 120 and the second display panel 220 are connected by the connecting part 600. Figure 10As shown in FIG. 1, the spherical display device according to some embodiments of the present application includes a first mounting frame 110, a second mounting frame 210, a display part 400, a connecting part 600, and a control unit 700. The first mounting frame 110 and the second mounting frame 210 are connected to each other to form a spherical surface. The display part 400 covers the outer surface of the first mounting frame 110 or the second mounting frame 210. The connecting part 600 is bent towards the backlight side at the bottom of the first mounting frame 110 or the second mounting frame 210, forming a bending area 610 and a reverse bending area 620, so that the reverse bending area 620 of the connecting part 600 is located inside the first mounting frame 110 or the second mounting frame 210. The reverse bending area 620 of the connecting part 600 is provided with the control unit 700.

[0091] The display part 400 covers the outer surface of the first mounting frame 110 or the second mounting frame 210 to display a picture. The reverse bending area 620 is provided with the control unit 700, and the bending area 610 is bent towards the backlight side, so that the reverse bending area 620 is located inside the first mounting frame 110 or the second mounting frame 210, thereby hiding the control unit 700 inside the display device, preventing the control unit 700 from being accidentally touched, and improving the working stability of the display device.

[0092] In some embodiments of the present application, as shown in Figure 9 and Figure 10 the reverse bending area 620 includes a circuit board area C1 and a chip area C2. A3A3' is the boundary between the circuit board area C1 and the chip area C2. The circuit board area C1 is located on the side of the chip area C2 away from the bending area 610. The control unit 700 includes a flexible circuit board 710 (FPC) and a chip 720 (IC). The flexible circuit board 710 is arranged in the circuit board area C1. The chip 720 is arranged in the chip area C2. As shown in Figure 10 the control unit 700 can further include a chip on film 730 (COF), which is located between the flexible substrate 810 and the chip 720. The chip 720 and the flexible circuit board 710 can be bonded with the chip on film 730. In other embodiments, the chip 720 can also be bonded with the flexible circuit board 710.

[0093] In some embodiments of the present application, as shown in Figure 9 and Figure 10 , Figure 10The middle dotted line shows the boundary line of the display part 400, the bending area 610 of the connecting part 600 and the reverse bending area 620 of the connecting part 600; the display part 400 comprises a flexible substrate 810, a display function layer 820 and a flexible cover plate 830 which are sequentially stacked; the bending area 610 of the connecting part 600 comprises the flexible substrate 810, the display function layer 820 and the flexible cover plate 830 which are extended from the display part 400; the reverse bending area 620 of the connecting part 600 comprises the flexible substrate 810 and the flexible cover plate 830 which are extended from the bending area 610; wherein the flexible cover plate 830 covers a part of the flexible substrate 810 close to the bending area 610, and the flexible cover plate 830 of the reverse bending area 620 of the connecting part 600 is used to be connected with the fixing ring 300; the side of the flexible substrate 810 away from the display part 400 and the area not covered by the flexible cover plate 830 are used to set the control unit 700.

[0094] The display function layer 820 comprises a driving circuit layer 821, a light emitting device layer 822 and an encapsulation layer 823 which are sequentially stacked in the direction away from the flexible substrate 810; the encapsulation layer 823 covers the light emitting device layer 822 and coats the end of the driving circuit layer 821 and the light emitting device layer 822 close to the reverse bending area 620, the encapsulation layer 823 can isolate water and oxygen to improve the service life of the display device; the light emitting device layer 822 has a plurality of pixel units 8221, and the plurality of pixel units 8221 are located in the display part 400; the driving circuit layer 821 can comprise a plurality of thin film transistors (not shown in the figure), and the plurality of thin film transistors are arranged one-to-one with the plurality of pixel units 8221 to drive the pixel units 8221 to emit light. Specifically, the driving circuit layer 821 can comprise a plurality of metal layers (not shown in the figure) and a plurality of organic layers (not shown in the figure), etc., and only part of the film layers extend to the bending area 610 of the connecting part 600, for example: the source-drain metal layer (not shown in the figure) and the gate layer (not shown in the figure) of the thin film transistor can be formed only in the driving circuit layer 821 of the display part 400; the material of the flexible substrate 810 can be PI (polyimide).

[0095] In some embodiments of the present application, as Figure 9As shown, the display part 400 has a plurality of pixel units 8221; the arc-shaped sides of the first display panel 120 and the second display panel 220 and the line connecting the vertex and the midpoint of the bottom edge are all equally divided into m parts, that is, the arcs OA, OA' and OB are all equally divided into m parts; the two arc-shaped sides of the first display panel 120 correspond to the first virtual equally divided point and the second virtual equally divided point respectively, the two arc-shaped sides of the second display panel 220 correspond to the first virtual equally divided point and the second virtual equally divided point respectively, and the line connecting the vertex and the midpoint of the bottom edge of the first display panel 120 and the second display panel 220 corresponds to the third virtual equally divided point; sequentially connecting the first virtual equally divided point, the third virtual equally divided point and the second virtual equally divided point forms m-1 equally spaced virtual latitude lines, that is, sequentially connecting the virtual equally divided points on the arcs OA, OB and OA' forms m-1 virtual latitude lines in the shape of A1B'A1'; the center of the pixel unit 8221 is located on the virtual latitude line, and the number of rows of the pixel unit 8221 is m-1; the plurality of pixel units 8221 on the same virtual latitude line are equally spaced; the plurality of pixel units 8221 on different virtual latitude lines are arranged into several columns along the direction perpendicular to the bottom edge of the first display panel 120 or the second display panel 220. Figure 9 As shown, the pixel units 8221 are arranged into 7 columns, and the pixel pitch d between adjacent pixel units 8221 is equal. The uniform distribution of the pixel units 8221 is conducive to improving the display effect. Figure 9 As shown, m=11, and the number of virtual latitude lines is 10. It can be understood that the pixel pitch d refers to the distance between the centers of two adjacent pixel units 8221, and the size of the pixel unit 8221 should be smaller than the pixel pitch d.

[0096] In some embodiments of the present application, there is a first joint seam between two adjacent first display panels 120, and there is a second joint seam between two adjacent second display panels 220, and the interval of the first joint seam and the interval of the second joint seam are equal to the pixel pitch d. The interval of the first joint seam and the interval of the second joint seam are equal to the pixel pitch d, so that the human eye cannot easily find that the joint seam is disconnected, and the first display panel 120 and the second display panel 220 are visually integrated, thereby improving the display effect.

[0097] In some embodiments of the present application, as shown in Figure 9 and Figure 11 As shown, Figure 11 is a partial enlarged view of Figure 9 , the display part 400 includes a bridge area B1, a plurality of opening areas B2, a plurality of island areas B3 and two GOA (Gate Driver on Array, array substrate gate drive) unit areas B4; the two GOA unit areas B4 are respectively located at the two arc-shaped sides, as shown in Figure 9As shown in the arc OA and the arc OA', the number of rows of the pixel units 8221 is m-1, and the two GOA unit areas B4 are respectively provided with m-1 GOA units 900, and the centers of the m-1 GOA units 900 are respectively arranged on the m-1 virtual latitudes, and the plurality of GOA units 900 are arranged on the virtual latitudes along the arc OA and the arc OA'; the two GOA units 900 on the same virtual latitude are respectively used to drive different pixel units 8221 on the same virtual latitude; the bridge area B1, the plurality of opening areas B2 and the plurality of island areas B3 are located between the two GOA unit areas B4; the plurality of island areas B3 are arranged at intervals and connected to each other through the bridge area B1, and the opening area B2 is located between the adjacent two island areas B3; and each island area B3 is provided with at least one pixel unit 8221.

[0098] Optionally, the pixel unit 8221 can include a red sub-pixel (R), a green sub-pixel (G) and a blue sub-pixel (B). In the process of fixing the first display panel 120 and the second display panel 220 to the first mounting frame 110 and the second mounting frame 210, the glue can be coated on the backlight side of the GOA unit area B4 of the first display panel 120 and the second display panel 220 to achieve adhesive fixing.

[0099] The two GOA unit areas B4 are respectively provided with m-1 GOA units 900, and the centers of the m-1 GOA units 900 are respectively arranged on the m-1 virtual latitudes, which can realize double-side driving; the GOA unit 900 can be electrically connected with the corresponding thin film transistor, and the plurality of GOA units 900 can be used to generate a gate driving signal to turn on or off the pixel units 8221 of the corresponding row. Figure 9 For example, the i-th row can be set to drive the left three pixel units 8221 by the left GOA unit 900 and drive the right two pixel units 8221 by the right GOA unit 900, so as to improve the voltage drop, improve the brightness uniformity, and further improve the display effect.

[0100] The opening area B2 is used to produce deformation when stretched to realize the stretching deformation function of the first display panel 120 and the second display panel 220; the bridge area B1 is used for wiring, and the bridge area B1 connects the island areas B3 to each other to realize signal communication between the adjacent island areas B3; since no hole area is arranged in the GOA unit area B4, the GOA unit area B4 will not produce deformation in the process of stretching the first display panel 120 and the second display panel 220, and is a non-stretchable area, which can ensure that the components and wires arranged in the GOA unit area B4 are not mechanically damaged in the deformation process of the first display panel 120 and the second display panel 220.

[0101] In addition, the bending area 610 can also be stretched by the above-mentioned manner of arranging the opening area B2, and the stretching strain can be greater than or equal to 3%.

[0102] In some embodiments of the present application, as shown in Figure 10 The fixing ring 300 is located inside the spherical display device, i.e., on the non-display side of the display part 400. The first part 310 of the fixing ring 300 is fixedly connected with the reflection zones 620 of the plurality of first display panels 120 of the first hemispherical display device 10. The second part 320 of the fixing ring 300 is fixedly connected with the reflection zones 620 of the plurality of second display panels 220 of the second hemispherical display device 20. Figure 10 Only the first part 310 or the second part 320 of the fixing ring 300 is shown. The first part 310 and the first hemispherical display device 10, and the second part 320 and the second hemispherical display device 20 can be in interference fit, so that the fixing between the fixing ring 300 and the first hemispherical display device 10 and the second hemispherical display device 20 is more reliable.

[0103] Specifically, as shown in Figure 10 The outer wall of the first part 310 of the fixing ring 300 is fixedly connected with the side of the flexible cover plate 830 of the reflection zone 620 of the first display panel 120 away from the display part 400. The first part 310 is arranged apart from the control unit 700 of the first display panel 120. The outer wall of the second part 320 of the fixing ring 300 is fixedly connected with the side of the flexible cover plate 830 of the reflection zone 620 of the second display panel 220 away from the display part 400. The second part 320 is arranged apart from the control unit 700 of the second display panel 220. The fixing ring 300 is arranged apart from the control unit 700, so as to prevent the control unit 700 from being damaged. During installation, fixing glue can be coated on the surface of the fixing ring 300 in contact with the flexible cover plate 830. The fixing ring 300 and the flexible cover plate 830 are fixed together by adhesion. Specifically, the first hemispherical display device 10 and the first part 310 of the fixing ring 300 are fixed first, and then the second part 320 of the fixing ring 300 and the second hemispherical display device 20 are fixed, so as to complete the assembly of the spherical display device.

[0104] As shown in Figure 10 The back film 840 can be arranged between the reflection zone 620 and the display part 400. The back film 840 is in close contact with the reflection zone 620 and the inner wall of the first mounting bracket 110 or the second mounting bracket 210, and plays a supporting role.

[0105] The display panel according to the second aspect of the present application is applied to the spherical display device according to the first aspect of the present application. The display panel is a flexible display panel and has a half-shuttle shape.

[0106] The display panel of the embodiment of the present application is a flexible display panel, in a half-shuttle shape, a plurality of display panels are spliced, which can be used to assemble an arc-shaped display device, and can be deformed during the assembly process, stretched into an arc surface, so that the surface of the display device is more flat, thereby improving the display effect.

[0107] As Figure 12 shown, Figure 12 is a flow chart for determining the number of display panels of the embodiment of the present application, and the embodiment of the third aspect of the present application provides a display panel number determination method, which is used to determine the number of display panels 2 in the display device of the first aspect embodiment, the mounting rack 1 is an arc-shaped mounting rack, the arc-shaped mounting rack and the plurality of display panels 2 constitute an arc-shaped display device, comprising:

[0108] S1, preset a plurality of candidate number of shares n;

[0109] S2, for each candidate number of shares n, the following steps are performed to obtain the strain corresponding to each undetermined number of shares n:

[0110] S21, divide the model of the arc-shaped display device into n shares to form n spherical half-shuttle patterns, and the radius of the model of the arc-shaped display device is D;

[0111] The following takes the arc-shaped display device as an example of a hemispherical display device, as Figure 13 shown, Figure 13 is a mathematical model diagram of the spherical display device of the embodiment of the present application, and the spherical display device with a radius of D is divided into 2n half-shuttle patterns, so that the hemispherical display device is divided into n half-shuttle patterns;

[0112] S22, map one spherical half-shuttle pattern to a two-dimensional plane to obtain a planar half-shuttle pattern; the length of each side of the spherical half-shuttle pattern is equal to the length of each side of the planar half-shuttle pattern;

[0113] S23, the arc length of the planar half-shuttle pattern is taken as a part of the circumference of the planar great circle, and the centers of the two planar great circles and the bottom side of the planar half-shuttle pattern are located on the same horizontal line;

[0114] As Figure 14 shown, Figure 14 is a schematic diagram of mapping the spherical half-shuttle pattern to a two-dimensional plane to obtain a planar half-shuttle pattern, Figure 13 wherein O' and O" are the centers of the two planar great circles, and the radius of the planar great circle constituting the planar shuttle pattern is R;

[0115] As Figure 15 shown, Figure 15The diagram shows the planar spindle pattern with different values ​​of n. Two planar half-spindle patterns are combined to form a complete planar spindle pattern. The values ​​of R are 45.85, 71.40, 92.51, 113.83, 133.57 and 154.00, respectively, for n = 3 to 8.

[0116] S24. Connect the center of the planar great circle with the vertex of the planar semi-rotary pattern to obtain a planar sector shape; the included angle of the planar sector shape is θ, and the radius is R; obtain the relationship between n and θ:

[0117] like Figure 16 and Figure 17 As shown, Figure 16 for Figure 14 A partially enlarged schematic diagram, Figure 17 for Figure 16 A magnified view of a portion of the diagram shows the following: the arc length of the planar spindle pattern is defined as 2L1; the line connecting the upper vertex of the planar spindle pattern and the widest point on the right side of the planar spindle pattern is L2; ​​the line connecting the upper and lower vertices of the planar spindle pattern is 2L3; the radius of the planar great circle passing through the upper vertex of the planar spindle pattern is L4; the horizontal line passing through the center of the planar great circle is L5; the line perpendicular to L4, with one end located at the upper vertex of the planar spindle pattern and the other end located on L5, is L6; and the perpendicular bisector of L2, with one end located at the center of the planar great circle... The line segment with one end on L2 is L7; the widest distance of the planar spindle pattern is 2W; the central angle of the great circle corresponding to the arc formed by the upper and lower apex angles of the planar spindle pattern is 2θ; the angle between L4 and L3 is θ1; the angle between L2 and L3 is θ2; the angle between L2 and L6 is θ3; the angle between L5 and L6 is θ4; the angle between L5 and L2 is θ5; the angle between L4 and L2 is θ6; the area of ​​the planar spindle pattern is S0; the area of ​​the spherical spindle pattern is S1.

[0118] like Figure 16 and Figure 17 As shown, L1 = Rθ; the arc length 2L1 of the planar spindle pattern is the same as the arc side of the spherical spindle pattern, and the arc side length of the spherical spindle pattern is πD. Therefore, it can be deduced that...

[0119] like Figure 16 and Figure 17 As shown, it can be seen that L3 = R sinθ;

[0120] The widest distance 2W of the planar spindle pattern is equal to the base edge of the spherical spindle pattern. Therefore, it can be deduced that...

[0121] like Figure 16 and Figure 17 As shown, it can be seen that It can be deduced that θ1=θ4;

[0122] As shown in Figure 16 and Figure 17 It can be known that θ5=θ6=θ3+θ4; θ6=θ1+θ2; because θ1=θ4, it can be deduced that θ2=θ3;

[0123] As shown in Figure 16 and Figure 17 It can be known that Because θ5=θ6, it can be deduced that

[0124] As shown in Figure 18 and Figure 18 It can be known that Because It can be deduced that the relationship between n and θ is:

[0125] Because n must be an integer, n and θ are a set of separate type numerical values corresponding to the value of n one by one;

[0126] S25, the area of the planar half-shuttle-shaped pattern

[0127] Specifically, the area S0 of the planar shuttle-shaped pattern is:

[0128]

[0129] S26, the area of the spherical half-shuttle-shaped pattern

[0130] Specifically, the area S0 of the spherical shuttle-shaped pattern is:

[0131] S27, the strain amount of the planar half-shuttle-shaped pattern transforming into the spherical half-shuttle-shaped pattern

[0132] Specifically, the planar shuttle-shaped pattern is stretched to form a spherical shuttle-shaped pattern. The stretching strain amount during the deformation process is calculated by the area change, and it can be known that the strain amount is

[0133] Because It can be deduced that

[0134] S3, the value n corresponding to the minimum strain amount obtained is determined as the number of display panels 2 in the display device.

[0135] As shown in ​ , ​As shown in the figure of the relationship between n and the strain amount ε, with the increase of n, the strain amount changes from tensile strain to compressive strain, when n = 6, the tensile strain is minimum, ε = 0.95%, when n = 7, the compressive strain is minimum, ε = -0.57%, when the number of display panels 2 in the hemispherical display device is 6 and 7, the tensile strain amount and the compressive strain amount are minimum respectively; if the display device is spherical, when the whole display device is divided into 12 parts, the tensile strain is minimum, when the whole display device is divided into 14 parts, the compressive strain is minimum.

[0136] Embodiments of the third aspect of the present application provide a display panel number determination method, by presetting a plurality of candidate number of parts n, and for each candidate number of parts n, performing the above steps to obtain the strain amount corresponding to each to-be-determined number of parts n, and determining the number n corresponding to the minimum strain amount as the number of display panels 2 in the display device, solving the problem that the strain amount may be insufficient when the display panel 2 is assembled to the mounting rack 1.

[0137] The display device of the embodiments of the present application has a simple processing process, good display effect, and small deformation amount requirement for the first display panel 120 and the second display panel 220; the spherical display device of the embodiments of the present application can provide images in all directions, and can provide more real and immersive environmental experience in immersive entertainment experience, 360-degree video and image display, flight simulator, car driving simulation and medical operation simulation, and can be applied to museums, shopping malls, large conference centers and other scenes.

[0138] It should be noted that, in this document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0139] Each of the embodiments in the specification is described in a related manner, and the same and similar parts between the embodiments can be referred to each other, and each embodiment mainly explains the difference from other embodiments. Especially, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the related parts can be referred to the part of the method embodiment.

[0140] The above merely describes the preferred embodiments of the present application, but is not used to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A display device, characterized in that, The display device comprises: a mounting frame and a plurality of display panels; the display panels are flexible display panels in a half-shuttle shape; the plurality of display panels are stretched into arc surfaces and fixed to the mounting frame by splicing; the vertices of the plurality of display panels are concentrated at a point, and the arc-shaped sides of adjacent two display panels are spliced together; the plurality of display panels and the mounting frame jointly form a display device; the mounting frame comprises a first mounting frame in a half-sphere shape and a second mounting frame in a half-sphere shape; the plurality of display panels comprise a plurality of first display panels and a plurality of second display panels; the plurality of first display panels cover the outer surface of the first mounting frame and jointly form a first half-sphere display device with the first mounting frame; the plurality of second display panels cover the outer surface of the second mounting frame and jointly form a second half-sphere display device with the second mounting frame; the display device further comprises a fixing ring; the first half-sphere display device and the second half-sphere display device are fixedly connected through the fixing ring to form a spherical display device; the first display panels and the second display panels each have a light-emitting side and a backlight side, and the light-emitting side faces the outside of the first mounting frame and the second mounting frame; the first display panels and the second display panels each comprise a display part and a connecting part connected in sequence; the display part covers the outer surface of the first mounting frame or the second mounting frame; the connecting part is bent towards the backlight side at the bottom of the first mounting frame or the second mounting frame to form a bending area and a reverse bending area, so that the reverse bending area of the connecting part is located inside the first mounting frame or the second mounting frame; the display part comprises a flexible substrate, a display functional layer and a flexible cover plate arranged in sequence; the bending area of the connecting part comprises the flexible substrate, the display functional layer and the flexible cover plate extended from the display part; the reverse bending area of the connecting part comprises the flexible substrate and the flexible cover plate extended from the bending area; the flexible cover plate covers a part of the flexible substrate close to the bending area; the flexible cover plate of the reverse bending area of the connecting part is used to connect with the fixing ring; the side of the flexible substrate away from the display part and the area not covered by the flexible cover plate are used to set a control unit.

2. The display device according to claim 1, wherein The display panels are spliced to the inner surface or the outer surface of the mounting frame.

3. The display device according to claim 1, wherein The light-emitting side of the display panel is provided with a plurality of pixel units; the backlight side of the display panel is provided with a control assembly; the mounting frame has a hollow area, and the control assembly passes through the mounting frame through the hollow area.

4. The display device according to claim 1, wherein The plurality of first display panels are of the same shape; the plurality of first display panels are stretched into arc surfaces and fixed to the first mounting frame by splicing; the vertices of the plurality of first display panels are concentrated at the vertices of the first mounting frame in a half-sphere shape, and the arc-shaped sides of adjacent two first display panels are spliced together in sequence.

5. The display device according to claim 4, wherein The plurality of second display panels are of the same shape; the second mounting frame is the same as the first mounting frame; the second display panels are the same as the first display panels; The plurality of second display panels are stretched into arc surfaces and fixedly connected to the second mounting frame; the vertices of the plurality of second display panels are concentrated at the vertex of the second mounting frame in a hemispherical shape, and the arc-shaped sides of adjacent two second display panels are sequentially spliced.

6. The display device according to claim 5, wherein The reverse folding area of the connecting part comprises a circuit board area and a chip area; the circuit board area is located on the side of the chip area away from the bending area; The control unit comprises a flexible circuit board and a chip; the flexible circuit board is arranged in the circuit board area; and the chip is arranged in the chip area.

7. The display device according to claim 5, wherein The display part has a plurality of pixel units; The arc-shaped sides and the line connecting the vertex and the midpoint of the bottom edge of the first display panel and the second display panel are each divided into m parts by a virtual equal division point. The two arc-shaped sides of the first display panel correspond to a first virtual equal division point and a second virtual equal division point respectively, the two arc-shaped sides of the second display panel correspond to a first virtual equal division point and a second virtual equal division point respectively, and the line connecting the vertex and the midpoint of the bottom edge of the first display panel and the second display panel corresponds to a third virtual equal division point. Connecting the first virtual equal division point, the third virtual equal division point and the second virtual equal division point in sequence forms m-1 virtual latitude lines arranged at intervals. The center of the pixel unit is located on the virtual latitude line; a plurality of pixel units on the same virtual latitude line are arranged at intervals; and a plurality of pixel units on different virtual latitude lines are arranged into several columns in a direction perpendicular to the bottom edge of the first display panel or the second display panel. The pixel spacing between adjacent pixel units is equal.

8. The display device according to claim 7, wherein The display part comprises a bridge area, a plurality of opening areas, a plurality of island areas and two GOA unit areas; The two GOA unit areas are respectively located at the two arc-shaped sides; the two GOA unit areas are respectively provided with m-1 GOA units, the centers of the m-1 GOA units are respectively arranged on the m-1 virtual latitude lines; and two GOA units on the same virtual latitude line are respectively used to drive different pixel units on the same virtual latitude line. The bridge area, the plurality of opening areas and the plurality of island areas are located between the two GOA unit areas; the plurality of island areas are arranged at intervals and connected to each other through the bridge area, and the opening area is located between adjacent two island areas; and each island area is provided with at least one pixel unit.

9. The display device according to claim 7, wherein There is a first joint seam between adjacent two first display panels, and a second joint seam between adjacent two second display panels; the interval of the first joint seam and the interval of the second joint seam are equal to the pixel spacing.

10. A display device according to any one of claims 5 to 9, characterised in that, The fixing ring is located inside the spherical display device, and the fixing ring is divided into a first part and a second part along the height direction thereof; The first part is fixedly connected with the connecting parts of the plurality of first display panels of the first hemispherical display device; and the second part is fixedly connected with the connecting parts of the plurality of second display panels of the second hemispherical display device.

11. The display device of claim 10, wherein The outer wall of the first part of the fixed ring is fixedly connected with the side of the flexible cover plate of the reverse folding area of the first display panel away from the display part; the first part is arranged apart from the control unit of the first display panel; The outer wall of the second part of the fixed ring is fixedly connected with the side of the flexible cover plate of the reverse folding area of the second display panel away from the display part; the second part is arranged apart from the control unit of the second display panel.

12. A display panel, characterized by The display device is applied to the display device of claim 1; the display panel is a flexible display panel and is in a half-shuttle shape.

13. A method of determining a number of display panels, the method comprising: determining a number of display panels based on a number of pixels in a display panel. The number of display panels in the display device of any one of claims 1 to 11 is determined, the mounting frame is an arc-shaped mounting frame, the arc-shaped mounting frame and the plurality of display panels form an arc-shaped display device, and the display device comprises: A plurality of candidate number values n are preset; For each candidate number value n, the following steps are performed to obtain a corresponding strain value for each to-be-determined number n: The model of the arc display device is equally divided into n parts to form n spherical semi-shuttle-shaped patterns, and the radius of the model of the arc display device is D; one spherical semi-shuttle-shaped pattern is mapped to a two-dimensional plane to obtain a planar semi-shuttle-shaped pattern; the length of each side of the spherical semi-shuttle-shaped pattern is equal to the length of each side of the planar semi-shuttle-shaped pattern; the arc length of the planar semi-shuttle-shaped pattern is taken as a part of the circumference of a planar great circle, and the centers of the two planar great circles and the bottom side of the planar semi-shuttle-shaped pattern are located on the same horizontal line; the center of the planar great circle and the top point of the planar semi-shuttle-shaped pattern are connected to obtain a planar sector pattern; the included angle of the planar sector pattern is θ, and the radius is R; a relationship between n and θ is obtained as follows: ; the area of the planar semi-shuttle-shaped pattern ; the area of the spherical semi-shuttle-shaped pattern ; the strain amount of the planar semi-shuttle-shaped pattern converted into the spherical semi-shuttle-shaped pattern ; The number value corresponding to the obtained minimum strain value is determined as the number of display panels in the display device.

14. The method of claim 13, wherein, The display device is a hemispherical display device, and the number of display panels in the hemispherical display device is 6 or 7.

Images