Display panel, display device, and splicing display device

Abstract

A display panel (10) includes a backplane (1), a plurality of rear wirings (121), a plurality of side wirings (13a1), and a plurality of block portions (2). The backplane (1) includes a display surface (11), a non-display surface (12), and a plurality of side surfaces (13) connecting the display surface (11) and the non-display surface (12), one of the side surfaces (13) being a selected side surface (13a). The plurality of rear wirings (121) are arranged at intervals on the non-display surface (12). Each rear wiring (121) includes a first segment (121a) and a second segment (121b). The plurality of side surface wirings (13a1) are arranged on the selected side surface (13). a), each side wiring (13a1) has one end located on the display surface (11) and the other end located on the non-display surface (12), each side wiring (13a1) is electrically connected to a first segment (121a), the extension direction of the first segment (121a) is the same as the extension direction of the end of the side wiring (13a1) located on the non-display surface (12), the extension direction of the second segment (121b) intersects with the extension direction of the first segment (121a), the multiple block portions (2) are arranged on the non-display surface (12), and one block portion (2) is arranged between two adjacent first segments (121a).

Description

[Technical Field]

[0001] The present disclosure relates to the field of display technology, and in particular to a display panel, a display device, and a splicing display device. [Background technology]

[0002] Micro Light Emitting Diode (Micro LED) display technology is a new generation display technology that is often applied to display devices that achieve seamless connections, and is referred to as third-generation display technology. By utilizing a side wiring method for display devices, it is possible to achieve fine-pitch splicing and assembly of display devices, improving product resolution. Summary of the Invention [Means for solving the problem]

[0003] In one aspect, a display panel is provided, the display panel comprising a backplane, a plurality of rear wirings, a plurality of side wirings, and a plurality of block portions, the backplane including a display surface, a non-display surface, and a plurality of side surfaces connecting the display surface and the non-display surface, one of which is a selected side surface, the plurality of rear wirings being spaced apart from the non-display surface, each rear wiring including a first segment and a second segment. The direction in which the second segments extend intersects with the direction in which the first segments extend. The plurality of side wirings are arranged at intervals on the selected side surface, and one end of each side wiring is located on the display surface and the other end is located on the non-display surface, and each side wiring is One of the multiple rear wirings corresponds to the rear wiring. electrically connected to the first segment; The corresponding rear wiring The extension direction of the first segment is each Located on the non-display side of the side wiring others The same as the extension direction of the end R The plurality of block portions are arranged on the non-display surface, and one block portion is arranged between two adjacent first segments.

[0004] In some embodiments, the material of the block comprises an insulating material.

[0005] In some embodiments, the block portion comprises: The aforementioned adjacent Two First Segment The first segment of one of come into contact with.

[0006] In some embodiments, the material of the block portion includes a metallic material, and there is a gap between the block portion and the adjacent first segment.

[0007] In some embodiments, a distance between the block portion and an adjacent first segment; and The aforementioned The ratio of the distance between two adjacent first segments is greater than 1:3.

[0008] In some embodiments, the distance between the surface of the blocking portion facing away from the non-display surface and the non-display surface is greater than the distance between the surface of the first segment facing away from the non-display surface and the non-display surface.

[0009] In some embodiments, the contour shape of the orthogonal projection of the block portion on the non-display surface comprises a rectangle, a square, a trapezoid, or a triangle.

[0010] In some embodiments, the display panel further comprises a plurality of isolation portions disposed on the non-display surface, The other end of each side wiring is a connection part is electrically connected to the connection portion is an end portion of the first segment that is close to the selected side surface, A separation part is disposed between two adjacent connection parts, and the separation part includes an insulating material. Two Connection One of the connections There is a gap between

[0011] In some embodiments, the distance between the isolation portion and the adjacent connection portion; The aforementioned The ratio of the distance between two adjacent connections is greater than 1:3.

[0012] In some embodiments, the standoff extends to an intersection of the non-display surface and the selected side surface.

[0013] In some embodiments, the distance between the surface of the standoff facing away from the non-display surface and the non-display surface is greater than or equal to the distance between the surface of the first segment facing away from the non-display surface and the non-display surface.

[0014] In some embodiments, the blocking portion and the isolating portion located between two adjacent first segments are connected.

[0015] In some embodiments, the width of the block portion in a first direction is greater than the width of the isolation portion in the first direction, and the first direction is perpendicular to the extension direction of the first segment.

[0016] In another aspect, there is provided a display device comprising a display panel as described above.

[0017] In yet another aspect, there is provided a splicing display device comprising a plurality of the display devices as described above, the plurality of display devices being spliced ​​together to form a splicing display device. [Brief explanation of the drawings]

[0018] In order to more clearly explain the technical solutions according to the embodiments of the present disclosure, the drawings used in some embodiments of the present disclosure will be briefly described below. It is clear that the drawings in the following description are only a part of some embodiments of the present disclosure. Those skilled in the art can obtain other drawings based on these drawings. In addition, the drawings in the following description can be regarded as schematic diagrams and do not limit the actual dimensions of products, actual flow of methods, actual timing of signals, etc. according to the embodiments of the present disclosure.

[0019] [Figure 1A] FIG. 1 is a plan view of a non-display surface of a display panel according to a related art.

[0020] [Figure 1B] FIG. 1 is a cross-sectional structural diagram of a display panel according to a related art, taken along the line AA'.

[0021] [Figure 2] FIG. 1 is a side view of a display panel according to the related art when laser etching is used.

[0022] [Figure 3] 1 is a structural diagram of damage to a line on the non-display surface of a display panel according to related art;

[0023] [Figure 4] FIG. 10 is a structural diagram of the side wiring of a display panel formed using a flexible mask plate sputtering process.

[0024] [Figure 5] FIG. 10 is a structural diagram showing a short circuit state of rear wiring of a display panel according to the related art.

[0025] [Figure 6] FIG. 10 is a structural diagram showing a short circuit state of side wiring of a display panel according to the related art.

[0026] [Figure 7] FIG. 1 is a structural diagram of a backplane according to some embodiments of the present disclosure.

[0027] [Figure 8A] FIG. 2 is a plan view of the non-display surface of a display panel according to some embodiments of the present disclosure.

[0028] [Figure 8B] 1 is a structural diagram of a non-display surface of a display panel according to some embodiments of the present disclosure.

[0029] [Figure 9] FIG. 8C is a cross-sectional structural diagram of the display panel taken along section line BB' of FIG. 8B according to some embodiments of the present disclosure.

[0030] [Figure 10]10A and 10B are diagrams of alternative structures on the non-display side of a display panel according to some embodiments of the present disclosure.

[0031] [Figure 11] 10A and 10B are diagrams illustrating yet another structure on the non-display side of a display panel according to some embodiments of the present disclosure.

[0032] [Figure 12] 10A and 10B are diagrams illustrating yet another structure on the non-display side of a display panel according to some embodiments of the present disclosure.

[0033] [Figure 13] 10A and 10B are diagrams illustrating yet another structure on the non-display side of a display panel according to some embodiments of the present disclosure.

[0034] [Figure 14] 10A and 10B are diagrams illustrating yet another structure on the non-display side of a display panel according to some embodiments of the present disclosure.

[0035] [Figure 15] 10A and 10B are diagrams illustrating yet another structure on the non-display side of a display panel according to some embodiments of the present disclosure.

[0036] [Figure 16] 10A and 10B are diagrams illustrating yet another structure on the non-display side of a display panel according to some embodiments of the present disclosure.

[0037] [Figure 17] 10A and 10B are diagrams illustrating yet another structure on the non-display side of a display panel according to some embodiments of the present disclosure.

[0038] [Figure 18A] FIG. 12 is a cross-sectional structural diagram of the display panel taken along section line FF' of FIG. 11 according to some embodiments of the present disclosure.

[0039] [Figure 18B]FIG. 18 is a cross-sectional structural diagram of the display panel taken along section line CC′ of FIG. 17 according to some embodiments of the present disclosure.

[0040] [Figure 19A] 1A and 1B are diagrams illustrating structures on the non-display side of a display panel according to some embodiments of the present disclosure.

[0041] [Figure 19B] 10A and 10B are diagrams illustrating yet another structure on the non-display side of a display panel according to some embodiments of the present disclosure.

[0042] [Figure 20] 10A and 10B are diagrams illustrating yet another structure on the non-display side of a display panel according to some embodiments of the present disclosure.

[0043] [Figure 21] 10A and 10B are diagrams illustrating yet another structure on the non-display side of a display panel according to some embodiments of the present disclosure.

[0044] [Figure 22] 1A and 1B are diagrams illustrating structures on the non-display side of a display panel according to some embodiments of the present disclosure.

[0045] [Figure 23] 10A and 10B are diagrams of alternative structures on the non-display side of a display panel according to some embodiments of the present disclosure.

[0046] [Figure 24] 10A and 10B are diagrams illustrating yet another structure on the non-display side of a display panel according to some embodiments of the present disclosure.

[0047] [Figure 25] 10A and 10B are diagrams illustrating yet another structure on the non-display side of a display panel according to some embodiments of the present disclosure.

[0048] [Figure 26]FIG. 26 is a cross-sectional structural diagram of the display panel taken along section line DD' of FIG. 25 according to some embodiments of the present disclosure.

[0049] [Figure 27] FIG. 25 is a cross-sectional structural diagram of the display panel taken along the section line HH′ of FIG. 24 according to some embodiments of the present disclosure.

[0050] [Figure 28] 1 is a structural diagram of a display panel according to some embodiments of the present disclosure.

[0051] [Figure 29] FIG. 1 is a side view of a display panel when using laser etching according to some embodiments of the present disclosure.

[0052] [Figure 30] FIG. 1 is a plan view of a display panel when laser etching is used according to some embodiments of the present disclosure.

[0053] [Figure 31] 1 is a structural diagram of a display device according to some embodiments of the present disclosure.

[0054] [Figure 32] 1 is a plan view of a splicing display device according to some embodiments of the present disclosure; DETAILED DESCRIPTION OF THE INVENTION

[0055] The technical solutions of some embodiments of the present disclosure will be described below clearly and completely with reference to the drawings, but it is clear that the described embodiments are only a part of the embodiments of the present disclosure and do not represent all of the embodiments. All other embodiments that can be obtained by those skilled in the art based on some embodiments of the present disclosure fall within the scope of protection of the present disclosure.

[0056] In this specification and claims, the term "comprise" and other forms thereof, such as the third-person singular "comprises" and the present participle form "comprising," should be construed in an open, inclusive sense, i.e., "including but not limited to," unless the context otherwise requires. In the description herein, the terms "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific example," "some examples," and the like, are intended to indicate that a particular feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of the present disclosure. General references to the above terms do not necessarily refer to the same embodiment or example. Furthermore, a described particular feature, structure, material, or characteristic may be included in any one or more embodiments or examples in any appropriate manner.

[0057] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or the number of the indicated technical features. Thus, a feature qualified with "first" or "second" can explicitly or implicitly include one or more of the feature. In describing the embodiments of the present disclosure, unless otherwise specified, "plurality" means two or more.

[0058] In describing some embodiments, the term "connected" and expressions derived therefrom may be used. For example, in describing some embodiments, the term "connected" may be used to indicate that two or more components are in direct physical or electrical contact with each other. The embodiments disclosed herein are not necessarily limited to the contents of this specification.

[0059] "At least one of A, B, and C" has the same meaning as "at least one of A, B, or C," and all include A only, B only, C only, a combination of A and B, a combination of A and C, a combination of B and C, and a combination of A, B, and C.

[0060] As used herein, "parallel," "perpendicular," and "equal" include the described situation and situations similar to the described situation, and the range of similar situations is within an acceptable deviation range, which is determined by taking into account the measurement considered by a person skilled in the art and the error associated with measuring a specific quantity (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallel and approximately parallel, and the acceptable deviation range for approximately parallel may be, for example, a deviation within 5°. "Perpendicular" includes absolute perpendicular and approximately perpendicular, and the acceptable deviation range for approximately perpendicular may be, for example, a deviation within 5°. "Equal" includes absolutely equal and approximately equal, and within the acceptable deviation range for approximately equal, for example, the difference between the two may be 5% or less.

[0061] In this specification, exemplary embodiments are described with reference to cross-sectional and / or plan views that are idealized exemplary drawings. In the drawings, thicknesses of layers and regions are exaggerated for clarity. Therefore, variations in shape relative to the drawings due to, for example, manufacturing techniques and / or tolerances can be expected. Therefore, the exemplary embodiments are not limited to the shapes of regions shown in the specification and should be interpreted to include deviations in shape due to manufacturing, etc. For example, ideally, the outline of an orthogonal projection of a film layer pattern on a certain plane is rectangular, but the outline of an orthogonal projection of an actually fabricated film layer pattern on a certain plane is a rectangle with rounded corners, or the sides of the outline are not standard straight line segments. Therefore, the regions shown in the drawings are exemplary in nature, and their shapes are not intended to represent the actual shape of the regions of the equipment, nor are they intended to limit the scope of the exemplary embodiments.

[0062] In the related art, a single display panel can use wiring arranged on the side of the panel to connect the display surface wiring of the panel to a driver arranged on the non-display surface of the display panel, so that when multiple display panels are spliced ​​together to form a larger display device, the spacing between adjacent display panels can be made narrower. Specifically, a metal layer is formed on the side of the display panel, and the metal layer is then etched by an etching process to form a pattern for the side wiring, or a flexible mask plate M (Shown in Figure 4) 1A and 1B, the display panel includes a pixel unit film layer located on the front surface, and B, R, and G in FIG. 1B exemplarily show pixel unit film layers on the display surface of the display panel 10′, and the front wiring 101 includes all signal lines, power lines, and control lines located on the display surface. Includes The back wiring 102 is a conductive pattern located on the non-display surface. Contains .

[0063] The inventors have found that the etching process for forming a metal layer on a plurality of side wirings is mainly achieved by a deep focal laser etching method. However, during this process, if the surface of the film layer of the front wiring and the rear wiring in the area close to the side wiring is exposed, it is difficult to avoid irradiation with a deep focal laser. Therefore, damage occurs in the exposed areas of the front wiring and the rear wiring of the display panel. During product reliability testing or after long-term use, the damaged locations become corrosion-inducing points, which become paths for water and oxygen to penetrate, further damaging the wiring. .figureAs shown in Figure 2, the irradiation direction of the laser LASER is parallel to the y-axis and approximately parallel to the display surface of the panel, and the laser movement path L1 is parallel to the x-axis. Considering the large number of components on the display surface of the display panel 10' and the relatively complex structure of the film layers, the display panel can be rotated at a certain angle when performing laser etching. For example, the display surface of the display panel is set so that it has an included angle θ with the y-axis and an included angle (90° + θ) with the x-axis. Here, θ is 3° or less, for example, 0.8°. By preventing the front wiring 101 on the display surface of the display panel 10' from being irradiated by the laser, damage to the front wiring 101 on the display surface can be avoided and the reliability of the display surface can be ensured. However, doing so will damage the rear wiring on the non-display side. As shown in Figure 2, if the laser is irradiated at position ss and there is a rear wiring pattern at position ss, a damage point will be formed at the corresponding position. As shown in Figure 3, the rear wiring is divided into straight line segments. (i.e. straight wiring) and diagonal segments (i.e. diagonal wiring) The damage point ss is formed at the position where the extension of the laser etching line intersects with the oblique line, that is, the oblique line segment , a straight line segment and Adjacent locations will be irradiated by the laser, which will cause etching damage and affect the quality of the product.

[0064] The inventors discovered that in the process of directly forming the side wiring 13a1 of the display panel 10' using a flexible mask plate M, as shown in FIG. 4, the mask plate M cannot be completely attached to the display panel 10', resulting in a gap between the mask plate M and the display panel. When a plating layer is provided above the mask plate M, the plating layer penetrates through the gap into the display surface, non-display surface, or side of the display panel 10' to form conductive islands mm. As shown in Figure 5,It was further discovered that the conductive island mm is highly likely to connect two adjacent side wirings 13a1, resulting in conduction between areas that should be insulated from each other, causing a short circuit. For example, the thickness of the front wiring 101 and rear wiring 102 of the display panel 10' is usually in the range of 500 to 600 nm, but when the thickness of the conductive island reaches approximately 50 nm, a short circuit may occur. Figure 5 shows the short circuit situation of the rear wiring on the display panel 10'. In Figure 5, film layers of different colors and shapes are arranged to be connected in sequence to represent the entire rear wiring 102, and the different shapes represent different conductive layers, and the different conductive layers represent different layer The conductive layers are located at the same position, and an insulating layer is disposed between each adjacent conductive layer, and different conductive layers are electrically connected through via holes. The short circuit situation of the side wiring 13a1 is shown in FIG. 6. In particular, in a display product with high resolution or small size, the spacing between the side wirings of the display panel 10' is relatively narrow, which makes it easier for the short circuit problem to occur due to penetration of the plating layer. After this problem occurs, the conductive islands can be repaired by laser irradiation. Do Etched and shorted portion However, this repair method still has the problem of laser damage to normal wiring patterns.

[0065] Some embodiments of the present disclosure provide a display panel 10, and illustratively, the display panel 10 is a Micro LED display panel or a mini LED display panel.

[0066] As shown in FIGS. 7 and 9, the display panel 10 includes a backplane 1, a plurality of rear wirings 121, a plurality of side wirings 13a1, and a plurality of block portions 2.

[0067] As shown in FIG. 7, the backplane 1 includes a display surface 11, a non-display surface 12, and a plurality of side surfaces 13 connecting the display surface 11 and the non-display surface 12, one of which is a selected side surface 13a.

[0068] As shown in FIG. 8A, multiple rear wirings 121 are arranged at intervals on the non-display surface 12, and each rear wiring 121 includes a first segment 121a and a second segment 121b. As shown in FIGS. 8A and 8B, in some embodiments, an included angle is formed between the first segment 121a and the second segment 121b, and the first segment 121a and the second segment 121b are arranged adjacent to each other. The lengths of the multiple first segments 121a in the extension direction may be different, and the ends connecting the multiple first segments 121a and the corresponding second segments 121b may not be collinear in the extension direction perpendicular to the first segment 121a. The first segments 121a of the multiple rear wirings 121 are arranged parallel to each other, and the second segments 121b of the multiple rear wirings 121 are arranged substantially parallel to each other, and the spacing between the second segments 121b of any two adjacent rear wirings among the multiple rear wirings 121 is substantially the same. Furthermore, the first segments 121a of the multiple back wirings 121 are close to the ends of the selected side surfaces 13a, and the distance D from the selected side surfaces 13a is greater than 0, for example, the distance D is 20 μm to 100 μm, and for example, the distance D may be 70 μm, or the distance D may be 80 μm.

[0069] Referring again to FIG. 8A, a coupling terminal 121d is connected to one end of the second segment 121b of each rear wiring 121, which is away from the first segment 121a, and the coupling terminal 121d is configured to connect to an external circuit board and is used to receive an electrical signal output from the external circuit board.

[0070] The plurality of side wirings 13a1 are arranged at intervals on the selected side surface 13a, with one end of each side wiring 13a1 located on the display surface 11 and the other end located on the non-display surface 12. As shown in FIG. 9, the end of each side wiring 13a1 located on the non-display surface 12 is electrically connected to a first segment 121a, and the side wiring 13a1 is a wiring used to connect the display surface 11 and the non-display surface, thereby realizing the demand for a narrower frame of the display device. The extension direction of the first segment 121a is the same as the extension direction of the portion of the side wiring 13a1 located on the non-display surface 12. (i.e. the other end)8B, the extension direction of first segment 121a located on non-display surface 12 and the extension direction of the portion of side surface wiring 13a1 located on non-display surface 12 are the same, and the extension direction of second segment 121b intersects with the extension direction of first segment 121a. Referring again to FIG. 8B, first segment 121a located on non-display surface 12 and the extension direction of the portion of side surface wiring 13a1 located on non-display surface 12 are the same, and an end of side surface wiring 13a1 overlaps an end of first segment 121a. Length L2 of the portion of side surface wiring 13a1 located on non-display surface 12 is slightly longer than distance D; for example, length L2 is set to 200 μm, thereby ensuring a reliable connection between side surface wiring 13a1 and the corresponding first segment 121a.

[0071] 8B and 10, a plurality of block portions 2 are arranged on the non-display surface 12, and one block portion 2 is arranged between two adjacent first segments 121a. One block portion 2 is arranged between each pair of adjacent first segments 121a, and the block portion 2 is arranged at the end of the first segment 121a where the first segment 121a and the second segment 121b are connected.

[0072] A block portion 2 is disposed between the first segments 121a of any two adjacent rear wirings 121, and is located at the end of the first segment 121a away from the selected side surface 13a. When the metal layer forming the side wirings or the conductive islands mm present between the side wirings 13a1 are etched with a laser, the block portion 2 can block the laser. The block portion 2 itself can be used as a sacrificial layer for laser etching, effectively protecting the rear wirings 121 from etching damage caused by the laser, preventing further corrosion of the wiring film layer due to laser damage, and improving product quality.

[0073] In some embodiments, referring again to FIG. 8B, the block portion 2 includes an insulating material; for example, the block portion 2 may use a resin; when the block portion 2 uses an insulating material, the block portion 2 may be in direct contact with the adjacent first segment 121a.

[0074] In some embodiments, as shown in FIG. 10, when the block portion 2 uses an insulating material, the block portion 2 may not be in contact with the first segment 121a.

[0075] In some embodiments, the contour shape of the orthogonal projection on the non-display surface 12 of the block portion 2 includes a rectangle, a square, a trapezoid, or a triangle, and the contour shape of the orthogonal projection on the non-display surface 12 of the block portion 2 is not particularly limited, as long as the block portion 2 can block the laser.

[0076] In some embodiments, when the block portion 2 is made of an insulating material and the block portion 2 contacts the first segment 121a, referring again to FIG. 8B , the contour shape of the block portion 2 when orthogonally projected on the non-display surface 12 is rectangular. As shown in FIG. 11 , the contour shape of the block portion 2 when orthogonally projected on the non-display surface 12 is square, and the spacing between two adjacent first segments 121a may vary. Therefore, for a block portion 2 that forms a square between two adjacent first segments 121a, when the block portion 2 contacts the two adjacent first segments 121a, the lengths of the sides of the different block portions 2 may be different, and the size of the block portion 2 that forms a square between the two adjacent first segments 121a may vary. For example, the spacing between the two first segments 121a located in the center of FIG. 11 is relatively small, and the block portion 2 that forms a square between them is relatively small. As shown in FIG. 12, the contour shape of the orthogonal projection of the block portion 2 on the non-display surface 12 is a trapezoid, with the upper base of the trapezoid closer to the selected side surface 13a than the lower base. Similarly, the spacing between two adjacent first segments 121a can be varied, so the size of the trapezoidal block portion 2 that contacts the two adjacent first segments 121a may also vary. As shown in FIG. 13, the contour shape of the orthogonal projection of the block portion 2 on the non-display surface 12 is a triangle, with the apex of the triangle closer to the selected side surface 13a than the opposite side. The above examples illustrate the contour shape of the orthogonal projection of the block portion 2 on the non-display surface 12, but the present invention is not limited to these. The block portion 2 may be any shape that can block a laser. Since the first segments 121a of different rear wirings 121 have different widths in a direction perpendicular to their extension direction, and the spacing between the first segments 121a of two adjacent rear wirings 121 is also different, the sizes of the block portions 2 located between two different adjacent first segments 121a may be different, but their shapes are similar.

[0077] When the block portion 2 is trapezoidal, the upper base of the trapezoid is closer to the selected side surface 13a than the lower base, as shown in Fig. 12, but the lower base of the trapezoid may be closer to the selected side surface 13a than the upper base, and the arrangement of the trapezoid is not limited. Similarly, as shown in Fig. 13, the contour shape of the orthogonal projection of the block portion 2 on the non-display surface 12 is triangular. Here, the apex of the triangle may be closer to the selected side surface 13a than the opposing side, or the apex of the triangle may be farther from the selected side surface 13a than the opposing side, but is not limited to these, and it is sufficient that the block portion 2 be able to block the laser.

[0078] In some embodiments, when the block portion 2 is made of an insulating material and does not contact the first segment 121a, referring again to FIG. 10 , the outline shape of the orthogonal projection of the block portion 2 on the non-display surface 12 is a rectangle, Also The contour shape of the orthogonal projection on the non-display surface 12 of the block portion 2 further includes a square, a trapezoid, or a triangle, which will not be described in detail here.

[0079] In some embodiments, the block portion 2 includes a metal material. Illustratively, the block portion 2 may use at least one of copper, aluminum, silver, and gold. For example, the block portion 2 may use silver, copper, or a copper-aluminum alloy. As shown in FIG. 14, when the block portion 2 uses a metal material, the block Department In order to avoid a short circuit of the back wiring 121 due to an overlap between the block portion 2 and the first segment 121a, a gap is provided between the block portion 2 and the adjacent first segment 121a, and the distance d1 between the block portion 2 and the adjacent first segment 121a and the distance d2 between the block portion 2 and the first segment 121a are corresponds toThe ratio of the distance dd between two adjacent first segments 121a to the distance dd between the two adjacent first segments 121a is greater than 1:3. The distance dd here refers to the distance between the projections on the non-display surface 12 of the opposing sides of the two adjacent first segments 121a, and the distance d1 here refers to the distance between the projections on the non-display surface 12 of the opposing sides of the block portion 2 and one adjacent first segment 121a. Referring again to FIG. 14, when the distance dd between two adjacent first segments 121a is 60 μm, the distance d1 between the block portion 2 and the first segment 121a can be set to 25 μm. The ratio of the distance d1 between the block portion 2 and the adjacent first segment 121a to the distance d1 between the block portion 2 and the adjacent first segment 121a is greater than 1:3. corresponds to By setting the ratio of the distance dd between two adjacent first segments 121a to be greater than 1:3, Department 2 can avoid short circuits due to the connection of the first segment 121a, and can also function as a barrier to etching of the rear wiring 121 by the laser LASER.

[0080] In some embodiments, when the block portion 2 uses a metal material, the contour shape of the orthogonal projection on the non-display surface 12 of the block portion 2 includes a rectangle, a square, a trapezoid, or a triangle.

[0081] In some embodiments, referring again to FIG. 14 , when the block portion 2 is made of a metal material, the contour shape of the orthographic projection of the block portion 2 on the non-display surface 12 is rectangular. As shown in FIG. 15 , the contour shape of the orthographic projection of the block portion 2 on the non-display surface 12 is square. As shown in FIG. 16 , the contour shape of the orthographic projection of the block portion 2 on the non-display surface 12 is trapezoidal, with the upper base of the trapezoid closer to the selected side surface 13a than the lower base. As shown in FIG. 17 , the contour shape of the orthographic projection of the block portion 2 on the non-display surface 12 is triangular, with the apex of the triangle closer to the selected side surface 13a than the opposite side. The above examples illustrate contour shapes of the orthographic projection of the block portion 2 on the non-display surface 12, but are not limited thereto. It is sufficient for the block portion 2 to be able to block laser light. Here, the distance d1 between the block portion 2 and the adjacent first segment 121a refers to the shortest distance between the two opposing surfaces of the block portion 2 and the adjacent first segment 121a. Since the first segments 121a of different rear wirings 121 have different widths in a direction perpendicular to their extension direction, and the spacing between the first segments 121a of two adjacent rear wirings 121 is also different, the sizes of the block portions 2 located between two different adjacent first segments 121a may be different, but their shapes are similar.

[0082] In some embodiments, as shown in Figures 18A and 18B, the distance d2 between the surface bm1 away from the hidden surface 12 of the block portion 2 and the hidden surface 12 is greater than the distance d3 between the surface bm2 away from the hidden surface 12 of the first segment 121a and the hidden surface 12.

[0083] In some embodiments, when the block portion 2 uses an insulating material and the block portion 2 contacts the first segment 121a, as shown in FIG. 18A, the distance d2 between the surface bm1 away from the hidden surface of the block portion 2 and the hidden surface 12 is 0.4 μm to 0.6 μm greater than the distance d3 between the surface bm2 away from the hidden surface 12 of the first segment 121a and the hidden surface 12, for example, the distance d2 is 0.5 μm greater than the distance d3, or d2 is 0.6 μm greater than d3, or d2 is 0.4 μm greater than d3, but the present disclosure is not limited thereto.

[0084] In some embodiments, when the block portion 2 uses a metal material, as shown in FIG. 18B, the distance d2 between the surface bm1 away from the hidden surface 12 of the block portion 2 and the hidden surface 12 is 0.4 μm to 0.6 μm greater than the distance d3 between the surface bm2 away from the hidden surface 12 of the first segment 121a and the hidden surface 12, for example, the distance d2 is 0.5 μm greater than the distance d3, or the distance d2 is 0.6 μm greater than the distance d3, or the distance d2 is 0.4 μm greater than the distance d3, but the present disclosure is not limited thereto.

[0085] The distance d2 between the surface bm1 of the block portion 2 away from the hidden surface 12 and the hidden surface 12 is set to be 0.4 μm to 0.6 μm larger than the distance d3 between the surface bm2 of the first segment 121a away from the hidden surface 12 and the hidden surface 12, so that the block portion 2 can adequately protect the back wiring 121 from laser etching damage during the entire process of forming a metal layer on the side wiring 13a1 using a laser etching process, or when using a laser to etch and repair the conductive islands mm between the side wiring 13a1.

[0086] In some embodiments, as shown in FIGS. 19A and 19B , the display panel 10 further includes a plurality of isolation portions 3 disposed on the non-display surface 12. The end of each first segment 121a near the selected side surface 13a is configured to overlap an end 13aa of the selected side surface 13a located on the non-display surface 12. The end of each first segment 121a near the selected side surface 13a is referred to as a connection portion 121c. It is understood that the connection portion 121c is part of the first segment 121a, and each first segment 121a is electrically connected to the end 13aa of the side wiring 13a1 located on the non-display surface 12 via the connection portion 121c. It is understood that the projections of the connected connection portions 121c and the end 13aa of the side wiring 13a1 on the non-display surface 12 of the display panel 10 overlap or partially overlap. One isolation portion 3 is disposed between two adjacent connection portions 121c. For example, between two adjacent connection portions 121c, an isolation portion 3 containing an insulating material is disposed, and a distance d4 is provided between the isolation portion 3 and the adjacent connection portion 121c. corresponds to Two adjacent connections 121c The ratio of the distance between the

[0087] Referring again to FIG. 19B , each first segment 121a is electrically connected to end 13aa located on non-display surface 12 of side wiring 13a1 via connection portion 121c. An isolation portion 3 is disposed between two adjacent connection portions 121c. Isolation portion 3 is made of an insulating material, and there is a gap between isolation portion 3 and adjacent connection portion 121c. Distance d4 between isolation portion 3 and adjacent connection portion 121c refers to the shortest distance between isolation portion 3 and the projection of adjacent connection portion 121c on non-display surface 12 of the opposing side. The distance between two adjacent connection portions 121c is denoted as dd′. In some embodiments, distance dd′ between two adjacent connection portions 121c and distance dd between two adjacent first segments 121a are equal.

[0088] Between the connection portions 121c of adjacent first segments 121a, an isolation portion 3 made of an insulating material is disposed. When the mask plate M is used to form the pattern of the side wiring 13a1, the isolation portion 3 ensures a predetermined distance between the isolation portion 3 and the adjacent connection portion 121c. This blocks the permeated membrane layer and prevents the permeated membrane layers on both sides of the isolation portion 3 from connecting. This effectively prevents short circuits of the first segments 121a caused by the permeated membrane layer, improving the yield of the display panel. Furthermore, this eliminates the need for a laser etching repair of the rear wiring 121 of the display panel 10; only the conductive islands mm between the side wiring 13a1 of the display panel 10 need to be laser repaired. The isolation portion 3, in cooperation with the block portion 2 arranged between the first segments 121a, can prevent damage to the rear wiring 121 of the display panel 10 due to laser etching repair, and can also prevent short-circuiting of the connection portion 121c of the first segment 121a due to penetration of the sprayed plating layer, thereby improving the product quality of the display panel 10.

[0089] 19B, in some embodiments, when the distance dd' between two adjacent connection portions 121c is 65 μm, the distance d4 between the isolation portion 3 and the adjacent connection portion 121c can be set to 25 μm. 121c By setting the ratio of the distance between the first segment 121a and the connecting portion 121c to be greater than 1:3, it is possible to effectively avoid the occurrence of short-circuit problems at the connecting portion 121c of the first segment 121a due to penetration of the sprayed plating layer.

[0090] In some embodiments, one end of isolation portion 3 extends to the intersection line between non-display surface 12 and selected side surface 13a. Referring again to Figure 19B, the extension direction of isolation portion 3 is the same as the extension direction of first segment 121a, and one end of isolation portion 3 extends to the intersection line between non-display surface 12 and selected side surface 13a. Isolation portion 3 protects connecting portion 121c of first segment 121a and the extending portion of side wiring 13a1 on non-display surface 12, thereby preventing the problem of short circuits on non-display surface 12 of display panel 10 due to penetration of the plating layer.

[0091] In some embodiments, as shown in FIGS. 19B and 20, the blocking portion 2 and the isolating portion 3 located between two adjacent first segments 121a are connected.

[0092] In some embodiments, when the block portion 2 is made of an insulating material, the connected block portion and the isolating portion are an integral structure. The block portion 2 and the isolating portion 3 may be made of the same material, for example, the same resin material, and the connected block portion 2 and the isolating portion 3 may be integrally molded in a single photolithography process.

[0093] In some embodiments, when the block portion 2 is made of an insulating material, the block portion 2 may contact its adjacent first segment 121a, and the outline shape of the orthogonal projection of the block portion 2 on the non-display surface 12 may be a different shape, for example, a rectangle, a square, a trapezoid, or a triangle, which will not be described in detail here. As shown in Figure 20, the block portion 2 and the isolation portion 3 located between two adjacent first segments 121a are connected, the block portion 2 contacts its adjacent first segment 121a, and the outline shape of the orthogonal projection of the block portion 2 on the non-display surface 12 is a rectangle.

[0094] 20 again, in some embodiments, the width k1 in the first direction of the block portion 2 is greater than the width k2 in the first direction of the isolation portion 3, the first direction being perpendicular to the extension direction of the first segment 121a, the width k1 in the first direction of the block portion 2 being the dimension in the first direction of the block portion 2 projected on the non-display surface 12, and the width k2 in the first direction of the isolation portion 3 being the dimension in the first direction of the isolation portion 3 projected on the non-display surface 12. Exemplarily, the block portion 2 and the isolation portion 3 may be integrally molded as a T-shaped structure, and when the block portion 2 is made of an insulating material and contacts its adjacent first segment 121a, the width k1 in the first direction of the block portion 2 may be equal to the distance dd between the two adjacent first segments 121a.

[0095] In some other embodiments, when the block portion 2 is made of an insulating material, the block portion 2 may not contact its adjacent first segment 121a, and the contour shape of the orthogonal projection of the block portion 2 on the non-display surface 12 may be different, for example, rectangular, square, trapezoidal, or triangular, the specifics of which are as described above and will not be described in detail here. As shown in FIG. 21, the block portion 2 is made of an insulating material, the block portion 2 and the isolation portion 3 between two adjacent first segments 121a are connected, the block portion 2 and its adjacent first segment 121a are not in contact, and the contour shape of the orthogonal projection of the block portion 2 on the non-display surface 12 is rectangular. The width k1 of the block portion 2 in the first direction and the isolation portion 3 The size of the width k2 in the first direction is not particularly limited, and here, the first direction is perpendicular to the extension direction of the first segment 121a.

[0096] In some other embodiments, the block portion 2 and the isolation portion 3 located between two adjacent first segments 121a are connected. If the block portion 2 is made of a metal material, the block portion 2 and the adjacent first segment 121a do not contact each other. The connected block portion 2 and the isolation portion 3 must be manufactured separately in two photolithography processes. The contour shape of the orthogonal projection of the block portion 2 on the non-display surface 12 includes a rectangle, a square, a trapezoid, or a triangle. The specific details are as described above and will not be described in detail here. As shown in FIG. 22, the block portion 2 does not contact its adjacent first segment 121a. The block portion 2 and the isolation portion 3 located between two adjacent first segments 121a are connected. The contour shape of the orthogonal projection of the block portion 2 on the non-display surface 12 is a trapezoid, and the upper base of the trapezoid is closer to the selected side surface 13a than the lower base. The width k1 of the block portion 2 in the first direction and the isolation portion 3 The size of the width k2 in the first direction is not particularly limited, and here, the first direction is perpendicular to the extension direction of the first segment 121a.

[0097] In some embodiments, as shown in FIGS. 23 and 24, the blocking portion 2 and the isolating portion 3 located between two adjacent first segments 121a do not contact each other.

[0098] In some embodiments, when the block portion 2 is made of an insulating material, the block portion 2 may be in contact with its adjacent first segment 121a, but the block portion 2 and the isolation portion 3 located between two adjacent first segments 121a are not in contact with each other. The contour shape of the orthogonal projection of the block portion 2 on the non-display surface 12 may be a different shape, for example, a rectangle, a square, a trapezoid, or a triangle, which will not be described in detail here. As shown in FIG. 23 , the contour shape of the orthogonal projection of the block portion 2 on the non-display surface 12 is a triangle, with the apex of the triangle closer to the selected side surface 13a than the opposite side. The block portion 2 is in contact with its adjacent first segment 121a, but is not in contact with the isolation portion 3 located between two adjacent first segments 121a.

[0099] In some embodiments, when the block portion 2 is made of an insulating material, the block portion 2 may not contact its adjacent first segment 121a, and the block portion 2 and the isolation portion 3 located between two adjacent first segments 121a may not contact each other, and the outline shape of the block portion 2 when orthogonally projected on the non-display surface 12 may be a different shape, for example, a rectangle, a square, a trapezoid, or a triangle, which will not be described in detail here. As shown in Figure 24, the block portion 2 does not contact its adjacent first segment 121a, and the block portion 2 and the isolation portion 3 located between two adjacent first segments 121a may not contact each other, and the outline shape of the block portion 2 when orthogonally projected on the non-display surface 12 may be a triangle.

[0100] In other embodiments, when the block portion 2 is made of a metal material, the block portion 2 does not contact the adjacent first segment 121a, and the block portion 2 and the isolation portion 3 located between two adjacent first segments 121a do not contact each other, and the outline shape of the orthographic projection of the block portion 2 on the non-display surface 12 can be a different shape, such as a rectangle, a square, a trapezoid, or a triangle, which will not be described in detail here. As shown in Figure 25, the block portion 2 does not contact the adjacent first segment 121a, and the block portion 2 and the isolation portion 3 located between two adjacent first segments 121a do not contact each other, and the outline shape of the orthographic projection of the block portion 2 on the non-display surface 12 is a triangle.

[0101] In some embodiments, as shown in Figures 26 and 27, the distance d5 between the surface bm3 of the isolation portion 3 and the non-display surface 12 is greater than or equal to the distance d6 between the surface bm4 of the connection portion 121c and the non-display surface 12.

[0102] When forming a pattern of side wiring 13a1 using mask plate M, the distance d5 between the surface bm3 away from the non-display surface 12 of isolation portion 3 and non-display surface 12 is greater than or equal to the distance d6 between the surface bm4 away from the non-display surface 12 of connection portion 121c and non-display surface 12, thereby adhering mask plate M to isolation portion 3 and effectively preventing penetration of the plating layer, further improving the blocking effect of isolation portion 3 and improving the yield of the display panel.

[0103] In some examples, as shown in FIG. 26, the distance d5 between the surface bm3 of the isolation portion 3 and the hidden surface 12 is equal to the distance d6 between the surface bm4 of the connection portion 121c and the hidden surface 12.

[0104] 27, the distance d5 between the surface bm3 of the isolation portion 3 and the non-display surface 12 is greater than the distance d6 between the surface bm4 of the connection portion 121c and the non-display surface 12. In some embodiments, the surface bm4 of the connection portion 121c and the non-display surface 12 is greater than the distance d6 between the surface bm2 of the first segment 121a and the non-display surface 12. The part excluding the surface BM4 It may be the same surface as

[0105] In some embodiments, as shown in FIG. 28, the display panel 10 includes a plurality of light-emitting elements 1002 arranged on the display surface, for example, the light-emitting elements being Micro LED chips or mini LED chips.

[0106] The display panel 10 further includes a first protective layer 1003 and a second protective layer 1004. The first protective layer 1003 covers the side wirings 13a1 and is disposed on the side of the side wirings 13a1 away from the backplane 1. For example, the first protective layer 1003 may fill gaps between the side wirings 13a1 and cover the surfaces of the side wirings 13a1. The first protective layer 1003 serves as electrical insulation and waterproofing against oxygen corrosion, preventing the side wirings 13a1 from being damaged by the outside world, resulting in problems such as peeling, disconnection, and oxidation, thereby extending the service life of the display panel 10. In a cross-sectional view of the display panel 10, the side wirings 13a1 are U-shaped, and the first protective layer 1003 is also U-shaped.

[0107] The second protective layer 1004 is disposed on the side of the first protective layer 1003 that is away from the side wiring 13a1. The second protective layer 1004 covers the film layers of the display surface 11 of the display panel 10, the first protective layer 1003, the rear wiring 121, etc. The second protective layer 1004 can further protect the multiple side wirings, and can protect the wiring of the display surface 11 and the rear wiring 121.

[0108] In some embodiments, the portion of the second protective layer 1004 located on the display surface 11 may be a black adhesive layer, for example, the material of the black adhesive layer is black silicone or black resin. In some examples, the portion of the black adhesive layer covering the plurality of light-emitting devices is thinner than the other portions, protecting each film layer on the display surface without affecting the light-emitting effect of the light-emitting devices.

[0109] When a laser etching process is used to form a metal layer on multiple side wirings and a laser is used to repair the side wiring 13a1 of the display panel 10, an alternative method to prevent the laser from causing etching damage to the rear wiring 121 of the display panel 10 is as follows:

[0110] 30, some embodiments of the present disclosure further provide a display panel including a backplane 1, a plurality of rear wirings 121, and a plurality of side wirings 13a1, the specific structures of which have been described above and will not be described in detail here. The connection positions of the first and second segments 121a and 121b of the plurality of rear wirings 121 are away from the range of the laser focal depth when laser etching the plurality of side wirings 13a1.

[0111] By extending the first segment 121a on the non-display surface 12 of the display panel 10 and positioning the connection position between the first segment 121a and the second segment 121b away from the range of the laser focal depth, damage to the rear wiring when forming multiple side wirings 13a1 by laser etching can be effectively avoided.

[0112] 29 and 30, the irradiation direction of the laser LASER is parallel to the Y axis, the laser movement path L1 is parallel to the X axis, and during laser etching, the display panel is rotated by a certain angle, for example, the display surface 11 of the display panel 10 is set to have an included angle β with the Y axis and an included angle of (90°+β) with the X axis, where β is 3° or less, for example, 1°, to prevent the film layer on the display surface 11 of the display panel 10 from being irradiated by the laser, avoiding damage to the film layer on the display surface 11 and ensuring the reliability of the display surface 11. The first segment 121a of the rear wiring 121 of the display panel 10 is extended, and the connection position between the first segment 121a and the second segment 121b is made away from the range of the laser focal depth; that is, the connection position between the first segment 121a and the second segment 121b is away from the boundary line LL where the laser LASER can irradiate on the non-display surface 12 of the display panel 10, so that the second segment 121b will not be irradiated and damaged by the laser, and thus the film layer on the display surface 11 of the display panel 10 and the film layer on the non-display surface can be simultaneously protected from laser damage.

[0113] Referring again to Figures 29 and 30, the boundary LL at which the laser LASER can irradiate on the non-display surface 12 of the display panel 10 refers to the boundary that is farthest from the intersection line between the non-display surface 12 and the selected side surface 13a at which the laser LASER can irradiate, and the location of this boundary LL is related to the angle β and the size range L1 in the movement direction X of the laser LASER, and for example, the movement direction X of the laser LASER is perpendicular to its light emission direction Y.

[0114] Among these, the determination of the movement size range L1 in the movement direction X of the laser LASER is related to the length L2 of the side wiring 13a1 located on the non-display surface 12.

[0115] Therefore, the length L2 of side wiring 13a1 located on non-display surface 12 determines the movement size range L1 in movement direction X of laser LASER, and the movement size range L1 in movement direction X of laser LASER and angle β determine the boundary LL that laser LASER can irradiate on non-display surface 12 of display panel 10. The area of ​​boundary LL close to the intersection line between non-display surface 12 and selected side surface 13a is the range reached by the laser focal depth, and the area of ​​boundary LL away from the intersection line between non-display surface 12 and selected side surface 13a is the range not reached by the laser focal depth. By locating the connection position between first segment 121a and second segment 121b in the range not reached by the laser focal depth, i.e., in the area away from the intersection line between non-display surface 12 and selected side surface 13a on boundary LL, damage to rear wiring 121 can be avoided when etching side wiring 13a1 with laser LASER or repairing side wiring 13a1.

[0116] In some embodiments, as shown in FIG. 19B, in a method for positioning the block portion 2 to avoid laser damage, the position of the block portion 2 is related to the range of the laser focal depth, and in some embodiments, the block portion 2 can be positioned within the range of the laser focal depth to further protect the rear wiring 121.

[0117] In another embodiment, a display device 100 is provided, and as shown in FIG. 31, the display device 100 includes the above-described display panel 10 and further includes a drive circuit 1001 electrically connected to the rear wiring 121.

[0118] In some embodiments, the driving circuit 1001 is electrically connected to the backside wiring 121 via a flexible circuit board.

[0119] The beneficial effects of the display device 100 provided by the present disclosure are the same as those of the embodiment of the display panel 10 provided by the first aspect of the present disclosure, and therefore will not be described in detail here.

[0120] In yet another aspect, a splicing display device 1000 is provided, which includes a plurality of the above-described display devices 100, as shown in FIG. 32, and the plurality of display devices 100 are spliced ​​together to form an assembled splicing display device 1000.

[0121] The beneficial effects of the splicing display device 1000 provided by the present disclosure are the same as those of the embodiment of the display panel 10 provided by the first aspect of the present disclosure, and therefore will not be described in detail here.

[0122] The above are merely specific embodiments of the present disclosure, and the scope of protection of the present disclosure is not limited thereto. Any modifications or replacements that can be easily thought up by a person skilled in the art within the technical scope of the present disclosure are intended to be embraced within the technical scope of the present disclosure. Therefore, the scope of protection of the present disclosure shall be governed by the scope described in the claims.

Claims

1. A display device comprising: a display surface and a non-display surface facing each other; and a plurality of side surfaces connecting the display surface and the non-display surface; a backplane, one of the sides being a selected side; a plurality of back surface wires spaced apart on the non-display surface, each back surface wire having a first The second segment extends in a direction parallel to the first segment. a plurality of rear wirings that intersect with the extending direction of the connector; A plurality of side wirings arranged at intervals on the selected side surface, each side wiring having one end one end is located on the display surface, and the other end is located on the non-display surface, and each side wiring is a first segment of a backside wiring of a corresponding one of the lines; The extending direction of the first segment of the rear wiring is such that the first segment is positioned on the non-display surface side of each side wiring. a plurality of side wirings extending in the same direction as the end; A plurality of block portions arranged on the non-display surface, each block portion including two adjacent first segments a plurality of block portions, each having one block portion disposed therebetween; a plurality of standoffs disposed on the non-display surface; the other end of each of the side wirings located on the non-display surface is electrically connected to a connection portion, the connection portion being an end of the first segment close to the selected side surface, one isolation portion being disposed between two adjacent connection portions, the isolation portion including an insulating material, and a gap being formed between the isolation portion and one of the two adjacent connection portions; Display panel.

2. The material of the block portion includes an insulating material. The display panel according to claim 1 .

3. The block portion is one of the two adjacent first segments. come into contact with 3. The display panel according to claim 1.

4. The material of the block portion includes a metal material, and the first segment adjacent to the block portion There is a gap between The display panel according to claim 1 .

5. The distance between the block portion and the adjacent first segment and the distance between the adjacent two first segments are The ratio of the distance between the points to the distance between the points is greater than 1:

3. The display panel according to claim 4 .

6. The distance between the surface of the block portion that is away from the non-display surface and the non-display surface is greater than the distance between a surface away from the hidden surface of one segment and the hidden surface; 3. The display panel according to claim 1.

7. The contour shape of the orthogonal projection of the block portion on the non-display surface is a rectangle, a square, a trapezoid, or containing a triangle, 3. The display panel according to claim 1.

8. the ratio of the distance between the isolation portion and the adjacent connection portion to the distance between two adjacent connection portions; is greater than 1:3, The display panel according to claim 1 .

9. The isolation portion extends to an intersection line between the non-display surface and the selected side surface. The display panel according to claim 1 .

10. The distance between the surface of the isolating portion that is away from the non-display surface and the non-display surface is the distance between the surface of the segment away from the hidden surface and the hidden surface; The display panel according to claim 1 .

11. The blocking portion and the isolating portion located between two adjacent first segments are connected. The display panel according to claim 10.

12. The width of the block portion in the first direction is larger than the width of the isolation portion in the first direction. the first direction is perpendicular to the extension direction of the first segment. The display panel according to claim 11 .

13. A display panel according to claim 1 or 2, Display device.

14. A splicing display device comprising a plurality of display devices according to claim 13, The display device is spliced ​​and assembled. Splicing display device.

Images