Display unit and display device

Abstract

To provide a display unit capable of improving the strength of an outer peripheral wall of a case compared to the conventional one, and a display device including the display unit.SOLUTION: In a display unit 500A, a light-emitting element 112, closest to an end side part 231, of a light-emitting element column included in a first intermediate band-shaped virtual region RAb is displaced inward with respect to an X axial direction than an edge part light-emitting element 111, closest to the end side part 231, of the light-emitting element column included in a starting end band-shaped virtual region RAa. A notch 250 includes not only a starting end notch portion 250a with a bottom located between the starting end band-shaped virtual region RAa and the first intermediate band-shaped virtual region RAb, but also an intermediate notch portion 250b with a bottom located at an end of the first intermediate band-shaped virtual region RAb. A projection 311 includes not only a starting end projection portion 311a facing the starting end notch portion 250a in the X axial direction, but also an intermediate projection portion 311b facing the intermediate notch portion 250b in the X axial direction.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present disclosure relates to a display unit and a display device. [Background technology]

[0002] As disclosed in Patent Document 1, a display unit is known that includes a circuit board having a plurality of light-emitting elements arranged on its surface and a case that holds the circuit board. The case has an outer wall that surrounds the periphery of the circuit board.

[0003] On the surface of the circuit board, a row of light emitting elements, each consisting of a plurality of light emitting elements arranged in a line in the X-axis direction, is aligned in the Y-axis direction, which is perpendicular to the X-axis direction. The periphery of the circuit board has an edge portion extending in the Y-axis direction, and the edge portion has a notch formed therein that has a depth in the X-axis direction.

[0004] Meanwhile, the outer peripheral wall of the case has a protrusion that protrudes in the X-axis direction toward the cutout in the circuit board. The protrusion acts as a rib that increases the strength of the outer peripheral wall. Because the protrusion fits into the cutout in the circuit board, the strength of the outer peripheral wall can be increased without increasing the outer dimensions of the case in the X-axis direction. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2015-141311 Summary of the Invention [Problem to be solved by the invention]

[0006] On the surface of the circuit board, each light emitting element row is arranged in a strip-shaped virtual area, which is a virtual area extending continuously in a strip shape in the X-axis direction. Each strip-shaped virtual area contains the light emitting element row. Corresponding to the arrangement of the light emitting element rows in the Y-axis direction, multiple strip-shaped virtual areas arranged at intervals in the Y-axis direction are imagined on the surface of the circuit board.

[0007] The area of ​​the circuit board where the light-emitting elements are arranged cannot be cut out. In the display unit disclosed in Patent Document 1, the light-emitting elements get in the way, so the position where the cutouts are formed on the circuit board is limited to between adjacent band-shaped imaginary areas in the Y-axis direction. This means that there is a limit to ensuring a large dimension in the Y-axis direction between the cutouts and the protrusions that fit into those cutouts, and to increasing the strength of the outer wall of the case using the protrusions.

[0008] Therefore, a first object of the present disclosure is to provide a display unit that can increase the strength of the outer peripheral wall of the case more than ever before, and a display device that includes the display unit.

[0009] Furthermore, when manufacturing a case by molding resin using a mold, the larger the dimension of the protrusion in the Y-axis direction, the less likely it is that weld lines or other molding defects will occur. Therefore, a configuration that can improve yield by ensuring a larger dimension of the protrusion in the Y-axis direction is desired.

[0010] Therefore, a second object of the present disclosure is to provide a display unit that allows the case to be manufactured with a high yield even when the case is manufactured by molding resin, and a display device that includes the display unit. [Means for solving the problem]

[0011] The display unit according to the present disclosure comprises: a light-emitting element group including a plurality of light-emitting elements each emitting visible light; a circuit board on which the light-emitting element group is arranged; a case having an outer peripheral wall surrounding a periphery of the circuit board and holding the circuit board; Equipped with The light-emitting element group includes: On the surface of the circuit board, a light emitting element row composed of a plurality of the light emitting elements arranged in a row in an X-axis direction parallel to the surface of the circuit board is configured to be arranged in a Y-axis direction parallel to the surface of the circuit board and perpendicular to the X-axis direction, The periphery of the circuit board is an edge portion extending in the Y-axis direction, the edge portion having a notch formed therein that has a depth in the X-axis direction; The outer peripheral wall of the case, a protrusion protruding from the outer peripheral wall in the X-axis direction toward the notch, the protrusion being fitted into the notch; A display unit, When a band-shaped virtual region that includes each of the light emitting element rows in a plan view of the circuit board and extends continuously in a band shape in the X-axis direction is defined on the surface of the circuit board, In the plurality of band-shaped virtual regions aligned in the Y-axis direction, a first intermediate band-shaped virtual area selected from the plurality of band-shaped virtual areas, wherein the light-emitting element closest to the edge portion in the light-emitting element row included in the first intermediate band-shaped virtual area is located farther inward from the edge portion in the X-axis direction than an edge light-emitting element that is the light-emitting element closest to the edge portion in the light-emitting element row included in a start band-shaped virtual area that is the band-shaped virtual area adjacent to the first intermediate band-shaped virtual area; Contains The cutout is the first intermediate band-shaped virtual region has not only a start end cutout portion having a bottom located between the start end band-shaped virtual region and the first intermediate band-shaped virtual region, but also an intermediate cutout portion that is continuous with the start end cutout portion in the Y-axis direction and has a bottom located at the end of the first intermediate band-shaped virtual region; The protrusion is In addition to the start end protruding portion facing the start end cutout portion in the X-axis direction, it also has an intermediate protruding portion that is continuous with the start end protruding portion in the Y-axis direction and faces the intermediate cutout portion in the X-axis direction. [Effects of the Invention]

[0012] According to the above configuration, the protrusion provided on the outer peripheral wall of the case has not only a leading protrusion but also an intermediate protrusion. Therefore, the dimension of the protrusion in the Y-axis direction can be secured to be larger than conventionally by at least the amount of the intermediate protrusion. Therefore, the strength of the outer peripheral wall of the case can be increased compared to conventionally.

[0013] Furthermore, the dimension of the protrusion in the Y-axis direction can be made larger than conventionally by at least the amount of the intermediate protrusion portion, so that the case can be manufactured with a high yield even when manufactured by molding resin. [Brief explanation of the drawings]

[0014] [Figure 1] FIG. 1 is a front view showing a display screen of a display device according to a first embodiment; [Figure 2] FIG. 1 is a cross-sectional view showing a part of a display unit according to a first embodiment. [Figure 3] FIG. 1 is a plan view showing a part of a display unit according to a first embodiment. [Figure 4] FIG. 10 is a plan view showing a part of a display unit according to a second embodiment. [Figure 5] FIG. 10 is a plan view showing a part of a display unit according to a third embodiment. [Figure 6] FIG. 10 is a plan view showing a part of a display unit according to a comparative example. DETAILED DESCRIPTION OF THE INVENTION

[0015] Hereinafter, embodiments will be described with reference to the drawings, in which the same or corresponding parts are designated by the same reference numerals.

[0016] [Embodiment 1] As shown in FIG. 1, a display device 600 according to this embodiment is configured by combining a plurality of display units 500, each of which displays an image.

[0017] The multiple display units 500 are arranged vertically and horizontally in a matrix pattern. As a result, the multiple display units 500 as a whole form a single display screen 610. In other words, each display unit 500 forms a part of the display screen 610.

[0018] To simplify the following explanation, a virtual UVW Cartesian coordinate system is defined in which the left-right direction when viewing the display screen 610 from the front is the U-axis direction, the up-down direction is the V-axis direction, and the direction perpendicular to the U-axis and V-axis directions is the W-axis direction. The UVW Cartesian coordinate system is a right-handed system, and the direction from left to right is the positive direction of the U-axis direction.

[0019] 1 is a front view of the display device 600 seen from a line of sight parallel to the W axis. In this embodiment, the U axis is parallel to the rows of a matrix formed by a plurality of display units 500, and the V axis is parallel to the columns of the matrix. The V axis typically extends vertically at the site where the display device 600 is installed.

[0020] Furthermore, the UVW Cartesian coordinate system is defined not only for the display device 600, but also for each display unit 500. The UVW Cartesian coordinate system defined for the display unit 500 overlaps with the UVW Cartesian coordinate system defined for the display device 600 when the display unit 500 constitutes the display device 600. However, the UVW Cartesian coordinate system defined for the display unit 500 is independent from the UVW Cartesian coordinate system defined for the display device 600.

[0021] Like the display device 600, each display unit 500 is formed into a quadrangle with one side parallel to the U axis and another side perpendicular to the first side parallel to the V axis when viewed from a line of sight parallel to the W axis. The configuration of each display unit 500 will be specifically described below.

[0022] 2 shows a portion of a cross section parallel to the W axis of the display unit 500. The display unit 500 includes a light-emitting element group 100 including a plurality of light-emitting elements 110 that each emit visible light, a circuit board 200 on whose surface 210 the light-emitting element group 100 is arranged, and a case 300 that holds the circuit board 200.

[0023] The case 300 has a mounting portion 320 on which the circuit board 200 is mounted, and an outer peripheral wall 310 that surrounds a periphery 230 of the circuit board 200 mounted on the mounting portion 320. The periphery 230 of the circuit board 200 refers to the portion that connects the front surface 210 and the back surface 220 of the circuit board 200.

[0024] The mounting portion 320 abuts against an edge portion of the rear surface 220 of the circuit board 200. The case 300 also has a back plate 330 that faces the rear surface 220 of the circuit board 200 with a gap GP between them. The back plate 330 and the circuit board 200 extend parallel to a UV imaginary plane that is perpendicular to the W axis.

[0025] The direction from back plate 330 toward circuit board 200 is the positive direction of the W axis. Outer peripheral wall 310 rises from back plate 330 in the positive direction of the W axis. Placement portion 320 is provided in the inside corner formed by outer peripheral wall 310 and back plate 330.

[0026] The display unit 500 also includes a waterproof resin layer 400 that covers the surface 210 of the circuit board 200. The waterproof resin layer 400 protects the surface 210 of the circuit board 200, on which the light emitting element group 100 is arranged, from moisture. The procedure for forming the waterproof resin layer 400 will be described below.

[0027] First, the circuit board 200 with the light-emitting element group 100 attached thereto is placed on the placement portion 320. At this time, the periphery 230 of the circuit board 200 is surrounded by the outer peripheral wall 310. Next, a paste-like resin that will become the base of the waterproof resin layer 400 is poured inside the outer peripheral wall 310. The outer peripheral wall 310 acts as a dam that prevents the paste-like resin from leaking out.

[0028] The poured paste-like resin covers the surface 210 of the circuit board 200 and the periphery of each light-emitting element 110, and also fills the space between the periphery 230 of the circuit board 200 and the outer peripheral wall 310. The hardened paste-like resin forms the waterproof resin layer 400.

[0029] Since the waterproof resin layer 400 covers the surface 210 of the circuit board 200, the surface 210 of the circuit board 200 is waterproofed by the waterproof resin layer 400. Furthermore, since the waterproof resin layer 400 watertightly seals the gap between the periphery 230 of the circuit board 200 and the outer peripheral wall 310, the back surface 220 of the circuit board 200 and the gap GP are also kept waterproof.

[0030] Fig. 3 is a plan view of display unit 500 as seen from a line of sight parallel to the W axis. Fig. 3 illustrates a portion of one display unit 500A selected from the plurality of display units 500 shown in Fig. 1, and a portion of display unit 500B adjacent to display unit 500A in the U axis direction. The following describes the configuration of display unit 500, focusing on display unit 500A as a representative example.

[0031] The surface 210 of the circuit board 200 extends parallel to a UV imaginary plane that is parallel to the U-axis direction and the V-axis direction. The light-emitting element group 100 has a configuration in which a light-emitting element row, made up of a plurality of light-emitting elements 110 lined up in a row in the U-axis direction, is lined up in the V-axis direction on the surface 210 of the circuit board 200.

[0032] Here, the U-axis direction is an example of the X-axis direction according to the present disclosure, and the V-axis direction is an example of the Y-axis direction according to the present disclosure.

[0033] Furthermore, the periphery 230 of the circuit board 200 has an edge portion 231 extending in the V-axis direction. A plurality of notches 250 are formed in the edge portion 231. The plurality of notches 250 are aligned in the V-axis direction. Each notch 250 has a depth in the U-axis direction. As an example, the notch 250 of the display unit 500A shown in FIG. 3 has a depth in the negative U-axis direction.

[0034] Meanwhile, outer peripheral wall 310 of case 300 is provided with protrusions 311 that protrude in the U-axis direction toward notch 250 of circuit board 200. As an example, protrusions 311 of display unit 500A shown in FIG. 3 protrude in the negative U-axis direction. Protrusions 311 function as ribs that increase the strength of outer peripheral wall 310.

[0035] On outer peripheral wall 310, multiple protrusions 311 are aligned in the V-axis direction. There is a one-to-one correspondence between protrusions 311 and cutouts 250. Each protrusion 311 is housed in its corresponding cutout 250. This allows the strength of outer peripheral wall 310 to be increased without increasing the outer dimension of case 300 in the U-axis direction.

[0036] The greatest feature of display unit 500A according to this embodiment is its configuration that enables a large dimension in the V-axis direction to be secured between notch 250 and protrusion 311 that fits into notch 250. To facilitate understanding of this configuration, a comparative example will be first described below.

[0037] 6 is a plan view showing a portion of a display unit 900 according to a comparative embodiment. On the surface 210 of the circuit board 200 of the display unit 900 according to the comparative embodiment, a light emitting element row, which is made up of a plurality of light emitting elements 110 arranged in a line in the U-axis direction, is also arranged in the V-axis direction.

[0038] 3, the display unit 900 according to the comparative example also has a plurality of pairs of notches 250 formed in the edge portion 231 extending in the V-axis direction and protrusions 311 that fit into the notches 250. The pairs of notches 250 and protrusions 311 are aligned in the V-axis direction.

[0039] In order to explain the problem in the comparative example, for each of the plurality of light emitting element rows aligned in the U-axis direction, a band-shaped virtual region R that includes the light emitting element row in a plan view of the circuit board 200 is defined on the surface 210 of the circuit board 200. Each band-shaped virtual region R extends continuously in a band shape in the U-axis direction.

[0040] In this specification, "planar view of circuit board 200" means viewing surface 210 from a line of sight parallel to the normal to surface 210 of circuit board 200, that is, a line of sight parallel to the W axis.

[0041] Furthermore, among the light-emitting element group 100, the light-emitting element 110 that is closest to the edge portion 231 in the U-axis direction will be referred to as the "edge light-emitting element 111." The light-emitting element group 100 includes multiple edge light-emitting elements 111 that are located at the same position in the U-axis direction. In the comparative example, each of multiple light-emitting element rows aligned in the V-axis direction has an edge light-emitting element 111.

[0042] The notch 250 cannot be formed in the edge portion 231 at a position on the side in the U-axis direction of the edge light emitting element 111. This is because the distance in the U-axis direction between the edge light emitting element 111 and the edge portion 231 is smaller than the depth in the U-axis direction of the notch 250. In other words, the edge light emitting element 111 gets in the way, so the notch 250 cannot be formed on the side in the U-axis direction of the edge light emitting element 111.

[0043] In this comparative example, each of the multiple strip-shaped virtual regions R aligned in the V-axis direction contains an edge light-emitting element 111. Therefore, the position where the notch 250 is formed on the circuit board 200 is limited to between the strip-shaped virtual regions R adjacent to each other in the V-axis direction.

[0044] In other words, the dimension of each notch 250 in the V-axis direction and the dimension of each protrusion 311 in the V-axis direction are limited to be less than the distance in the V-axis direction between adjacent band-shaped virtual regions R in the V-axis direction.

[0045] Therefore, in the comparative example, there is a limit to how much the dimensions of notch 250 and protrusion 311 in the V-axis direction can be increased to increase the strength of outer peripheral wall 310 of case 300. Also, there is a limit to how much the yield can be improved when case 300 is injection molded by increasing the dimension of protrusion 311 in the V-axis direction.

[0046] Hereinafter, we will return to the description of the embodiment that solves the above-described problems.

[0047] 3, in the display unit 500A according to this embodiment, for each light emitting element row, a band-shaped virtual region R that includes the light emitting element row is defined on the surface 210 of the circuit board 200. Note that in FIG. 3, the four illustrated band-shaped virtual regions R are denoted by symbols RAa to RAd in order to distinguish them from one another.

[0048] Also in this embodiment, the light emitting element 110 in the light emitting element group 100 that is closest to the edge portion 231 in the U-axis direction will be referred to as the "edge light emitting element 111." The light emitting element group 100 includes multiple edge light emitting elements 111 that are at the same position in the U-axis direction.

[0049] The distance in the U-axis direction between the edge light emitting element 111 and the edge portion 231 is smaller than the depth in the U-axis direction of the notch 250. For this reason, the notch 250 cannot be disposed on the side of the edge light emitting element 111. This is the same as in the comparative example.

[0050] However, in this embodiment, a strip-shaped virtual region RAb is located adjacent to the strip-shaped virtual region RAa in the V-axis direction, the strip-shaped virtual region RAa including the edge light-emitting element 111, in which the light-emitting element 110 (hereinafter referred to as the offset light-emitting element 112) closest to the edge portion 231 in the included light-emitting element row is shifted inward relative to the edge light-emitting element 111. Here, "inward" refers to the direction away from the edge portion 231 in the U-axis direction.

[0051] In other words, in a row of light-emitting elements contained in a strip-shaped virtual area RAb selected from a plurality of strip-shaped virtual areas R arranged in the V-axis direction, the offset light-emitting element 112, which is the light-emitting element 110 closest to the edge portion 231, is shifted inward more than the edge light-emitting element 111, which is the light-emitting element 110 closest to the edge portion 231 in a row of light-emitting elements contained in a strip-shaped virtual area RAa adjacent to the strip-shaped virtual area RAb.

[0052] As described above, since the offset light emitting element 112 is shifted inward relative to the edge light emitting element 111, in this embodiment, it is possible to form the notch 250 also on the side of the offset light emitting element 112 in the U-axis direction.

[0053] Specifically, the cutout 250 according to this embodiment has not only a start cutout portion 250a having its bottom located between the strip-shaped imaginary areas RAa and RAb, but also an intermediate cutout portion 250b having its bottom located at the end of the strip-shaped imaginary area RAb. The intermediate cutout portion 250b is continuous with the start cutout portion 250a in the V-axis direction.

[0054] The protrusion 311 has not only a start protrusion 311a facing the start cutout 250a in the U-axis direction, but also an intermediate protrusion 311b facing the intermediate cutout 250b in the U-axis direction. The intermediate protrusion 311b is continuous with the start protrusion 311a in the V-axis direction.

[0055] In addition, next to the strip-shaped virtual area RAb on the opposite side of the strip-shaped virtual area RAa in the V-axis direction is a strip-shaped virtual area RAc which contains an edge light-emitting element 111 different from the edge light-emitting element 111 contained in the strip-shaped virtual area RAa.

[0056] The cutout 250 also has a terminal cutout portion 250c whose bottom is located between the band-shaped imaginary area RAc and the band-shaped imaginary area RAb. In other words, the bottom of the cutout 250 extends continuously in the V-axis direction from the above-mentioned start cutout portion 250a to the terminal cutout portion 250c.

[0057] The innermost bottom of the notch 250 is located inward from the end face of the edge light emitting element 111 that is closest to the edge portion 231 .

[0058] The protrusion 311 also has a terminal protrusion portion 311c that faces the terminal cutout portion 250c in the U-axis direction. In other words, the protrusion 311 extends continuously in the V-axis direction from the aforementioned starting protrusion portion 311a to the terminal protrusion portion 311c.

[0059] As described above, in this embodiment, the strip-shaped virtual regions RAc and RAb interposed between the strip-shaped virtual regions RAc, each containing an edge light-emitting element 111, contain the offset light-emitting element 112. Since the offset light-emitting element 112 is shifted inward relative to the edge light-emitting element 111, the intermediate cutout portion 250b can be disposed on the side of the offset light-emitting element 112.

[0060] Therefore, starting notch portion 250a and ending notch portion 250c can be connected in the V-axis direction through intermediate notch portion 250b. As a result, it is possible to form notch 250 that is longer in the V-axis direction than notch 250 according to the comparative example shown in FIG.

[0061] Therefore, it is possible to form a protrusion 311 that is longer in the V-axis direction than the protrusion 311 in the comparative embodiment shown in Figure 6, so that it fits into the notch 250 that is longer in the V-axis direction.

[0062] Because each of the protruding portions 311 can be elongated in the V-axis direction, the strength of the outer peripheral wall 310 of the case 300 can be increased compared to conventional cases. Furthermore, because each of the protruding portions 311 can be elongated in the V-axis direction, even when the case 300 is manufactured by resin molding, specifically injection molding, weld lines and other molding defects are less likely to occur, and the case 300 can be manufactured with a good yield.

[0063] In the above description, the band-shaped virtual region RAa has been given as an example of a starting band-shaped virtual region located on one side in the V-axis direction of the cutout 250. The band-shaped virtual region RAc has been given as an example of an ending band-shaped virtual region located on the other side in the V-axis direction of the cutout 250. The band-shaped virtual region RAb has been given as an example of a first intermediate band-shaped virtual region interposed between the starting band-shaped virtual region and the ending band-shaped virtual region. The regularity of the arrangement of the light-emitting elements 110 on the surface 210 of the circuit board 200 will now be described.

[0064] In this embodiment, in all light-emitting element rows aligned in the V-axis direction, the arrangement pitch of the light-emitting elements 110 in the U-axis direction is the same, which is P. In this specification, the "arrangement pitch" in the U-axis direction refers to the distance between the center position of a light-emitting element 110 in the U-axis direction and the center position of the light-emitting element 110 adjacent to that light-emitting element 110 in the U-axis direction.

[0065] On the surface 210 of the circuit board 200, light emitting element rows including edge light emitting elements 111 and light emitting element rows shifted in the U-axis direction relative to the edge light emitting element rows (hereinafter referred to as offset light emitting element rows) are alternately arranged in the V-axis direction. The positions of all offset light emitting element rows in the U-axis direction are aligned. In each offset element row, the light emitting element 110 closest to the edge portion 231 is the offset light emitting element 112 described above.

[0066] Therefore, in the display unit 500A according to this embodiment, there are a plurality of sets of the above-mentioned start band virtual region, first intermediate band virtual region, and end band virtual region. That is, the sets of the start band virtual region, first intermediate band virtual region, and end band virtual region exist periodically in the V-axis direction, under the condition that the end band virtual region in one set becomes the start band virtual region in the set adjacent to that set in the V-axis direction.

[0067] As a result, the display unit 500A according to this embodiment has a plurality of pairs of notches 250 and protrusions 311 that fit into the notches 250. Specifically, the pairs of notches 250 and protrusions 311 are periodically arranged in the V-axis direction.

[0068] The above has described display unit 500A as an example of a first display unit selected from the plurality of display units 500 that constitute display device 600 shown in Fig. 1. Continuing with reference to Fig. 3, the relationship between display unit 500A as the first display unit and display unit 500B as an example of a second display unit adjacent to the first display unit in the U-axis direction will be described.

[0069] In this embodiment, the positions of the light emitting element rows in the V axis direction are aligned between display units 500A and 500B that are adjacent to each other in the U axis direction. Note that in both light emitting element rows of display unit 500B, the arrangement pitch of the light emitting elements 110 in the U axis direction is P, the same as the arrangement pitch in display unit 500A.

[0070] Furthermore, the distance in the U-axis direction between a light-emitting element row arbitrarily selected from the plurality of light-emitting element rows of the display unit 500A (hereinafter referred to as a first light-emitting element row in this embodiment) and a light-emitting element row of the adjacent display unit 500B that is located at the same position in the V-axis direction as the first light-emitting element row (hereinafter referred to as a second light-emitting element row in this embodiment) is also equal to P. This will be explained in detail below.

[0071] The light emitting element 110 in the first light emitting element row of the display unit 500A that is closest to the display unit 500B will be called the first light emitting element. Also, the light emitting element 110 in the second light emitting element row of the display unit 500B that is closest to the display unit 500A will be called the second light emitting element.

[0072] In this case, the distance in the U-axis direction between the first light-emitting element and the second light-emitting element is equal to the arrangement pitch P of the light-emitting elements 110 in the first light-emitting element row and the arrangement pitch P of the light-emitting elements 110 in the second light-emitting element row, i.e., P. This makes it possible to make the boundary between display unit 500A and display unit 500B less noticeable on display screen 610 shown in FIG.

[0073] The above describes a configuration in which the distance in the U-axis direction between the first light-emitting element row and the second light-emitting element row is made to match the arrangement pitch P of the light-emitting elements 110 in the first light-emitting element row and the second light-emitting element row. When adopting such a configuration, the distance in the U-axis direction between the first light-emitting element row and the second light-emitting element row must be made smaller as the number density of the light-emitting elements 110 on the surface 210 of the substrate 200 is increased, that is, as the arrangement pitch P is reduced. For this reason, as the number density of the light-emitting elements 110 increases, there are cases in which the outer peripheral wall 310 must be made thinner.

[0074] In this regard, as described above, the outer peripheral wall 310 according to this embodiment is provided with a plurality of protrusions 311 each having a sufficient dimension in the V-axis direction. Therefore, even if the outer peripheral wall 310 must be formed thin due to an increase in the number density of the light emitting elements 110, the presence of the protrusions 311 can reinforce the outer peripheral wall 310 and prevent a decrease in yield when the case 300 is injection molded.

[0075] In any of the display units 500 constituting the display device 600 shown in FIG. 1, the configuration of one end side in the U-axis direction is the same as the configuration of the other end side in the U-axis direction.

[0076] Specifically, each display unit 500 has a pair of edge portions 231 facing each other in the U-axis direction, and on both edge portions 231, pairs of notches 250 and protrusions 311 are aligned in the V-axis direction. Fig. 3 illustrates the configuration of one end portion in the U-axis direction for display unit 500A. The other end portion in the U-axis direction of display unit 500A has the same configuration as the end portion in the U-axis direction of display unit 500B shown in Fig. 3.

[0077] [Embodiment 2] 3 illustrates a configuration in which the arrangement pitch of the light emitting elements 110 is the same in all light emitting element rows of the display unit 500. The plurality of light emitting element rows constituting the light emitting element group 100 of the display unit 500 may include a plurality of types of light emitting element rows in which the arrangement pitch of the light emitting elements 110 differs from one another. Specific examples thereof will be described below.

[0078] Fig. 4 shows a main part of the display unit 500 according to this embodiment. Fig. 4 shows a part of each of two display units 500C and 500D adjacent to each other in the U-axis direction, selected from the plurality of display units 500 constituting the display device 500 shown in Fig. 1.

[0079] First, a common configuration of the display units 500 according to this embodiment, including the display units 500C and 500D, will be described.

[0080] The plurality of light emitting element rows constituting the light emitting element group 100 of the display unit 500 according to this embodiment include a light emitting element row in which the light emitting elements 110 are arranged in the U-axis direction at a first arrangement pitch P1 (hereinafter referred to as a first-type light emitting element row), and a light emitting element row in which the light emitting elements 110 are arranged in the U-axis direction at a second arrangement pitch P2 different from the first arrangement pitch P1 (hereinafter referred to as a second-type light emitting element row). The second arrangement pitch P2 is smaller than the first arrangement pitch P1 (P1>P2).

[0081] On the front surface 210 of the circuit board 200, the first-kind light-emitting element rows and the second-kind light-emitting element rows are arranged alternately in the V-axis direction.

[0082] In such an arrangement of light emitting element rows, when attention is focused only on the first-type light emitting element rows, a reference first-type light emitting element row (hereinafter referred to as a reference first-type light emitting element row) and a first-type light emitting element row shifted in the U-axis direction with respect to the reference first-type light emitting element row (hereinafter referred to as an offset first-type light emitting element row) are alternately present in the V-axis direction. Meanwhile, the positions of all second-type light emitting element rows in the U-axis direction are aligned.

[0083] Next, the relationship between the display units 500 adjacent to each other in the U-axis direction will be described.

[0084] In this embodiment, as in the first embodiment, the positions of the light emitting element rows in the V axis direction are aligned between the display unit 500C and the display unit 500D adjacent to the display unit 500C in the U axis direction.

[0085] Moreover, the first-type light-emitting element row of the display unit 500D faces the first-type light-emitting element row of the display unit 500C in the U-axis direction, and the second-type light-emitting element row of the display unit 500D faces the second-type light-emitting element row of the display unit 500C in the U-axis direction.

[0086] Furthermore, the distance Q in the U-axis direction between a light-emitting element row (hereinafter referred to as the first light-emitting element row in this embodiment) arbitrarily selected from multiple light-emitting element rows of the display unit 500C and a light-emitting element row (hereinafter referred to as the second light-emitting element row in this embodiment) of the adjacent display unit 500D that is positioned at the same position in the V-axis direction as the first light-emitting element row is equal to the arrangement pitch of the light-emitting elements 110 in the first light-emitting element row and the second light-emitting element row.

[0087] That is, when the first light-emitting element row and the second light-emitting element row are first-type light-emitting element rows, Q=P1. On the other hand, when the first light-emitting element row and the second light-emitting element row are second-type light-emitting element rows, Q=P2. By adopting such a configuration, it is possible to make the boundary between the display unit 500C and the display unit 500D less noticeable on the display screen 610 shown in FIG.

[0088] Note that Q=P1 for the first-type light-emitting element row means that the reference first-type light-emitting element row of the display unit 500D faces the reference first-type light-emitting element row of the display unit 500C in the U-axis direction, and the offset first-type light-emitting element row of the display unit 500D faces the offset first-type light-emitting element row of the display unit 500C in the U-axis direction.

[0089] Next, the configuration of the display unit 500C will be described in detail.

[0090] In the display unit 500C, the band-shaped virtual region RCa containing the first-type light-emitting element row is an example of a starting end band-shaped virtual region located on one side in the V-axis direction of the cutout 250. In other words, the band-shaped virtual region RCa contains the edge light-emitting elements 111.

[0091] As described above, the edge light emitting element 111 refers to the light emitting element 110 that is closest to the edge portion 231 in the U-axis direction among the light emitting element group 100. The light emitting element group 100 includes multiple edge light emitting elements 111 that are at the same position in the U-axis direction.

[0092] In the display unit 500C, the strip-shaped virtual region RCb, which is adjacent to the strip-shaped virtual region RCa and includes the second-type light-emitting element row, is an example of a first intermediate strip-shaped virtual region adjacent to the starting end strip-shaped virtual region. In other words, the strip-shaped virtual region RCb includes the offset light-emitting elements 112 that are shifted inward from the edge light-emitting elements 111.

[0093] In the display unit 500C, the strip-shaped virtual region RCe, which is located on the opposite side of the strip-shaped virtual region RCb from the strip-shaped virtual region RCa in the V-axis direction, is an example of a terminal strip-shaped virtual region located on the other side of the cutout 250 in the V-axis direction. In other words, the strip-shaped virtual region RCe includes the edge light-emitting elements 111. Note that the strip-shaped virtual region RCe includes the first-type light-emitting element row. Contain.

[0094] In addition, in the display unit 500C, the band-shaped virtual area RCc and the band-shaped virtual area RCd interposed between the band-shaped virtual area Rcb and the band-shaped virtual area RCe are examples of a second intermediate band-shaped virtual area interposed between the first intermediate band-shaped virtual area and the terminal band-shaped virtual area.

[0095] The strip-shaped virtual region RCd adjacent to the strip-shaped virtual region RCe includes a second-type light-emitting element row. As described above, the positions of the second-type light-emitting element rows in the U-axis direction are aligned with each other. Therefore, the offset light-emitting elements 112 included in the strip-shaped virtual region RCd face the offset light-emitting elements 112 included in the strip-shaped virtual region RCb in the V-axis direction.

[0096] The strip-shaped virtual region RCc adjacent to the strip-shaped virtual region Rcb contains a first-type light-emitting element row. As described above, in the arrangement of the light-emitting element rows in the V-axis direction, when attention is focused only on the first-type light-emitting element rows, the reference first-type light-emitting element rows and the offset first-type light-emitting element rows are alternately present in the V-axis direction.

[0097] If the first-type light-emitting element row included in the strip-shaped virtual regions RCa and RCe is a reference first-type light-emitting element row, the first-type light-emitting element row included in the strip-shaped virtual region RCc is an offset first-type light-emitting element row. The offset light-emitting elements 112 included in the strip-shaped virtual region RCc are located further inward than the offset light-emitting elements 112 included in the strip-shaped virtual regions RCb and RCd.

[0098] As a result of adopting the above configuration, the cutout 250 according to this embodiment has a start cutout portion 250d whose bottom is located between the band-shaped imaginary regions RCa and RCb, and an end cutout portion 250j whose bottom is located between the band-shaped imaginary regions RCe and RCd. The bottom of the cutout 250 extends continuously in the V-axis direction from the start cutout portion 250d to the end cutout portion 250j.

[0099] Specifically, between the starting cutout portion 250d and the ending cutout portion 250j, the cutout 250 has an intermediate cutout portion 250e whose bottom is located at the end of the strip-shaped virtual region RCb, an intermediate cutout portion 250f whose bottom is located between the strip-shaped virtual regions RCb and RCc, an intermediate cutout portion 250g whose bottom is located at the end of the strip-shaped virtual region RCc, an intermediate cutout portion 250h whose bottom is located between the strip-shaped virtual regions RCc and RCd, and an intermediate cutout portion 250i whose bottom is located at the end of the strip-shaped virtual region RCd.

[0100] In addition, the protrusion 311 in this embodiment has a starting protrusion portion 311d that faces the starting cutout portion 250d in the U-axis direction, and a terminal protrusion portion 311j that faces the terminal cutout portion 250j in the U-axis direction, and extends continuously in the V-axis direction from the starting protrusion portion 311d to the terminal protrusion portion 311j.

[0101] Specifically, between the starting protruding portion 311d and the ending protruding portion 311j, the protruding portion 311 has an intermediate protruding portion 311e facing the intermediate cutout portion 250e in the U-axis direction, an intermediate protruding portion 311f facing the intermediate cutout portion 250f in the U-axis direction, an intermediate protruding portion 311g facing the intermediate cutout portion 250g in the U-axis direction, an intermediate protruding portion 311h facing the intermediate cutout portion 250h in the U-axis direction, and an intermediate protruding portion 311i facing the intermediate cutout portion 250i in the U-axis direction.

[0102] In the display unit 500C, there are multiple sets of the above-mentioned start band-shaped virtual region, first intermediate band-shaped virtual region, two second intermediate band-shaped virtual regions, and end band-shaped virtual region. As a result, the display unit 500C according to this embodiment has multiple pairs of notches 250 and protrusions 311 that fit into the notches 250.

[0103] Specifically, sets of a start band-shaped virtual region, a first intermediate band-shaped virtual region, two second intermediate band-shaped virtual regions, and a end band-shaped virtual region exist periodically in the V-axis direction, under the condition that an end band-shaped virtual region in one set becomes a start band-shaped virtual region in the set adjacent to that set in the V-axis direction. As a result, pairs of notches 250 and protrusions 311 are arranged periodically in the V-axis direction.

[0104] As described above, the display unit 500C of this embodiment has a configuration in which multiple band-shaped virtual areas RCc and RCd are further arranged as second intermediate band-shaped virtual areas between the band-shaped virtual area RCb as the first intermediate band-shaped virtual area and the band-shaped virtual area RCe as the terminal band-shaped virtual area.

[0105] As a result, the dimensions of the notch 250 and the protrusion 311 in the V-axis direction can be further increased compared to the configuration of embodiment 1. Since the dimension of the protrusion 311 in the V-axis direction can be further increased, the strength of the outer peripheral wall 310 of the case 300 can be further increased, and the yield when the case 300 is injection molded can be further improved.

[0106] [Embodiment 3] 3 and 4, each of the light emitting elements 110 constituting the light emitting element group 100 may have a shape (hereinafter referred to as an elongated shape) with one direction as the longitudinal direction and a direction perpendicular to that one direction as the lateral direction in a plan view of the circuit board 200. Specific examples thereof will be described below.

[0107] 5, each light emitting element 110 according to this embodiment is formed into a rectangular shape as the above-mentioned elongated shape in a plan view with respect to the circuit board 200. Each light emitting element 110 is arranged such that, in a plan view with respect to the circuit board 200, its longitudinal direction coincides with the U-axis direction and its lateral direction coincides with the V-axis direction.

[0108] As a result, the width in the V-axis direction of the strip-shaped virtual area RAa as the starting strip-shaped virtual area and the strip-shaped virtual area RAc as the ending strip-shaped virtual area is narrowed compared to when each light-emitting element 110 is arranged in a direction such that its longitudinal direction coincides with the V-axis direction.

[0109] This contributes to increasing the dimensions of the notches 250 and the protrusions 311 in the V-axis direction, or to increasing the total number of pairs of the notches 250 and the protrusions 311 aligned in the V-axis direction. This can further improve the strength of the outer peripheral wall 310 of the case 300 and the yield when the case 300 is injection molded.

[0110] 5 shows an example of a configuration in which this embodiment is applied to the display unit 500 according to the first embodiment shown in Fig. 3. The configuration in which the light-emitting elements 110 are arranged so that their longitudinal directions coincide with the U-axis direction can also be applied to the display unit 500 according to the second embodiment shown in Fig. 4.

[0111] The above describes embodiments 1 to 3. The following variations are also possible.

[0112] 3 illustrates a configuration in which all light-emitting element rows aligned in the V-axis direction have the same arrangement pitch. A set of a start end strip-shaped virtual region, a first intermediate strip-shaped virtual region, and an end end strip-shaped virtual region aligned in the V-axis direction may be realized by a configuration in which multiple types of light-emitting element rows with different arrangement pitches are included in the light-emitting element group 100. As an example, in the configuration shown in FIG. 3, the arrangement of the offset light-emitting elements 112 may be realized by making the arrangement pitch of the light-emitting element rows included in the strip-shaped virtual region RAb different from the arrangement pitch of the light-emitting element rows included in the strip-shaped virtual regions RAa and RAc.

[0113] 4 illustrates a configuration in which the light-emitting element group 100 includes two types of light-emitting element rows with different arrangement pitches. A configuration in which all light-emitting element rows have the same arrangement pitch may realize a set of a starting strip-shaped virtual region, a first intermediate strip-shaped virtual region, at least one second intermediate strip-shaped virtual region, and an end strip-shaped virtual region aligned in the V-axis direction. As an example, in the configuration shown in FIG. 3, even if all light-emitting element rows have the same arrangement pitch, an arrangement of three offset light-emitting elements 112 may be realized by shifting the light-emitting element rows included in strip-shaped virtual regions RCb, RCc, and RCd in the U-axis direction relative to the light-emitting element rows included in strip-shaped virtual regions RCa and RCe.

[0114] Although FIG. 4 illustrates two types of light emitting element rows with different arrangement pitches, the light emitting element group 100 may include three or more types of light emitting element rows with different arrangement pitches.

[0115] The display device 600 shown in Fig. 1 may include display units 500A and 500B shown in Fig. 3 and display units 500C and 500D shown in Fig. 4. In other words, the configuration according to the first embodiment and the configuration according to the second embodiment can be used together.

[0116] 5 shows a rectangle as an example of the elongated shape of each light emitting element 110. The elongated shape is not limited to a rectangle. As another example, the elongated shape may be an ellipse.

[0117] In the above-described embodiments 1 to 3, the direction in which the strip-shaped virtual region R extends (hereinafter referred to as the X-axis direction) is the U-axis direction, and the direction in which the multiple strip-shaped virtual regions R are arranged (hereinafter referred to as the Y-axis direction) is the V-axis direction. A configuration in which the V-axis direction shown in Figures 1 to 5 is the X-axis direction and the U-axis direction is the Y-axis direction may also be adopted.

[0118] Various aspects of the present disclosure are described below.

[0119] (Appendix 1) a light-emitting element group including a plurality of light-emitting elements each emitting visible light; a circuit board on which the light-emitting element group is arranged; a case having an outer peripheral wall surrounding a periphery of the circuit board and holding the circuit board; Equipped with The light-emitting element group includes: On the surface of the circuit board, a light emitting element row composed of a plurality of the light emitting elements arranged in a row in an X-axis direction parallel to the surface of the circuit board is configured to be arranged in a Y-axis direction parallel to the surface of the circuit board and perpendicular to the X-axis direction, The periphery of the circuit board is an edge portion extending in the Y-axis direction, the edge portion having a notch formed therein that has a depth in the X-axis direction; The outer peripheral wall of the case, a protrusion protruding from the outer peripheral wall in the X-axis direction toward the notch, the protrusion being fitted into the notch; A display unit, When a band-shaped virtual region that includes each of the light emitting element rows in a plan view of the circuit board and extends continuously in a band shape in the X-axis direction is defined on the surface of the circuit board, In the plurality of band-shaped virtual regions aligned in the Y-axis direction, a first intermediate band-shaped virtual area selected from the plurality of band-shaped virtual areas, wherein the light-emitting element closest to the edge portion in the light-emitting element row included in the first intermediate band-shaped virtual area is located farther inward from the edge portion in the X-axis direction than an edge light-emitting element that is the light-emitting element closest to the edge portion in the light-emitting element row included in a start band-shaped virtual area that is the band-shaped virtual area adjacent to the first intermediate band-shaped virtual area; Contains The cutout is the first intermediate band-shaped virtual region has not only a start end cutout portion having a bottom located between the start end band-shaped virtual region and the first intermediate band-shaped virtual region, but also an intermediate cutout portion that is continuous with the start end cutout portion in the Y-axis direction and has a bottom located at the end of the first intermediate band-shaped virtual region; The protrusion is The axial direction of the axial groove is opposite to the starting end cutout portion, and the axial direction of the axial groove is opposite to the starting end cutout portion. Display unit. (Appendix 2) an end band-shaped virtual region is located adjacent to the first intermediate band-shaped virtual region on the opposite side of the start band-shaped virtual region in the Y-axis direction, the end band-shaped virtual region being the band-shaped virtual region that includes the light-emitting element positioned at the same position in the X-axis direction as the edge light-emitting element; The cutout is the first intermediate band-shaped virtual area further has a terminal cutout portion having a bottom located between the terminal band-shaped virtual area and the first intermediate band-shaped virtual area, the terminal cutout portion continuously extending in the Y-axis direction from the start cutout portion to the terminal cutout portion, The protrusion is The terminal protrusion portion further has a terminal protrusion portion facing the terminal notch portion in the X-axis direction, and extends continuously in the Y-axis direction from the start protrusion portion to the terminal protrusion portion. Display unit in Appendix 1. (Appendix 3) an end band-shaped virtual region is located on the opposite side of the first intermediate band-shaped virtual region from the start band-shaped virtual region in the Y-axis direction, via at least one of the band-shaped virtual regions, the end band-shaped virtual region being the band-shaped virtual region that includes the light-emitting element that is located at the same position in the X-axis direction as the edge light-emitting element; When the band-shaped virtual area interposed between the first intermediate band-shaped virtual area and the end band-shaped virtual area is defined as a second intermediate band-shaped virtual area, the light-emitting element closest to the end edge portion in the light-emitting element row included in the second intermediate band-shaped virtual area is shifted inward relative to the edge light-emitting element, The cutout is the first intermediate band-shaped virtual area is adjacent to the first intermediate band-shaped virtual area, and the second intermediate band-shaped virtual area is adjacent to the first intermediate band-shaped virtual area. The first intermediate band-shaped virtual area further includes an end cutout portion having a bottom located between the end cutout portion and the second intermediate band-shaped virtual area adjacent to the end cutout portion, the end cutout portion continuously extending in the Y-axis direction from the start cutout portion to the end cutout portion. The protrusion is The terminal protrusion portion further has a terminal protrusion portion facing the terminal notch portion in the X-axis direction, and extends continuously in the Y-axis direction from the start protrusion portion to the terminal protrusion portion. Display unit in Appendix 1. (Appendix 4) In all of the light-emitting element rows aligned in the Y-axis direction, the arrangement pitch of the light-emitting elements in the X-axis direction is equal. Any display unit in Appendix 1 to 3. (Appendix 5) The plurality of light emitting element rows arranged in the Y-axis direction include: the light emitting element row in which the light emitting elements are aligned in the X-axis direction at a first arrangement pitch; the light emitting element row in which the light emitting elements are arranged in the X-axis direction at a second arrangement pitch different from the first arrangement pitch; A display unit according to any of Annexes 1 to 3, including: (Appendix 6) Each of the light-emitting elements constituting the light-emitting element group is In a plan view of the circuit board, the contacts have a shape with one direction as a longitudinal direction, and are arranged in a direction that coincides with the X-axis direction. Any display unit in Appendix 1 to 5. (Appendix 7) a distance in the X-axis direction between the edge light-emitting element and the edge portion is smaller than a depth in the X-axis direction of the notch; Any display unit in Appendix 1 to 6. (Appendix 8) Equipped with multiple display units according to any of the items 1 to 7, A plurality of the display units are combined together. Display device. (Appendix 9) a first display unit selected from the plurality of display units constituting the display device and a second display unit that is the display unit adjacent to the first display unit in the X-axis direction, the positions of the light-emitting element rows in the Y-axis direction are aligned; a first light-emitting element in a first light-emitting element row selected from the plurality of light-emitting element rows of the first display unit, the light-emitting element being closest to the second display unit; When the light emitting element closest to the first display unit in a second light emitting element row, which is the light emitting element row of the second display unit positioned in the same X-axis direction as the first light emitting element row, is defined as a second light emitting element, a distance in the X-axis direction between the first light-emitting element and the second light-emitting element is equal to an arrangement pitch in the X-axis direction of the light-emitting elements in the first light-emitting element row and an arrangement pitch in the X-axis direction of the light-emitting elements in the second light-emitting element row; Attachment 8 display device. [Explanation of symbols]

[0120] 100 light-emitting element group, 110 light-emitting element, 111 edge light-emitting element (light-emitting element), 112 offset light-emitting element (light-emitting element), 200 circuit board, 210 surface, 220 back surface, 230 periphery, 231 edge portion, 250 notch, 250a start end notch portion, 250b middle notch portion, 250c end end notch portion, 250d start end notch portion, 250e middle notch portion, 250f middle notch portion, 250g middle notch portion, 250h middle notch portion, 250i middle notch portion, 250j end end notch portion, 300 case, 310 outer peripheral wall, 311 protrusion, 311a start end protrusion portion, 311b middle protrusion portion, 311c end end protrusion portion, 311d Starting end protrusion portion, 311e intermediate protrusion portion, 311f intermediate protrusion portion, 311g intermediate protrusion portion, 311h intermediate protrusion portion, 311i intermediate protrusion portion, 311j ending end protrusion portion, 320 mounting portion, 330 back plate, 400 waterproof resin layer, 500 display unit, 500A display unit (first display unit), 500B display unit (second display unit), 500C display unit (first display unit), 500D display unit (second display unit), 600 display device, 610 display screen, 900 display unit, GP gap, R band-shaped virtual area, RAa band-shaped virtual area (starting end band-shaped virtual area), RAb band-shaped virtual area (first intermediate band-shaped virtual area), RAc band-shaped virtual area (ending end band-shaped virtual area), RAd band-shaped virtual area, RCa Band-shaped virtual area (starting band-shaped virtual area), RCb band-shaped virtual area (first intermediate band-shaped virtual area), RCc band-shaped virtual area (second intermediate band-shaped virtual area), RCd band-shaped virtual area (second intermediate band-shaped virtual area), RCe band-shaped virtual area (ending band-shaped virtual area).

Claims

1. a light-emitting element group including a plurality of light-emitting elements each emitting visible light; a circuit board on which the light-emitting element group is arranged; a case having an outer peripheral wall surrounding a periphery of the circuit board and holding the circuit board; Equipped with The light-emitting element group includes: a light emitting element row, which is composed of a plurality of the light emitting elements arranged in a row in an X-axis direction parallel to the surface of the circuit board, is configured to be arranged in a Y-axis direction parallel to the surface of the circuit board and perpendicular to the X-axis direction, on the surface of the circuit board; The periphery of the circuit board is an edge portion extending in the Y-axis direction, the edge portion having a notch formed therein that has a depth in the X-axis direction; The outer peripheral wall of the case, a protrusion protruding from the outer peripheral wall in the X-axis direction toward the notch, the protrusion being fitted into the notch; A display unit, When a band-shaped virtual region is defined on the surface of the circuit board for each of the light emitting element rows, the virtual region including the light emitting element row in a plan view of the circuit board and extending continuously in a band shape in the X-axis direction, In the plurality of band-shaped virtual regions arranged in the Y-axis direction, a first intermediate band-shaped virtual area selected from the plurality of band-shaped virtual areas, wherein the light-emitting element closest to the edge portion in the light-emitting element row included in the first intermediate band-shaped virtual area is located farther inward from the edge portion in the X-axis direction than an edge light-emitting element that is the light-emitting element closest to the edge portion in the light-emitting element row included in a start band-shaped virtual area that is the band-shaped virtual area adjacent to the first intermediate band-shaped virtual area; Contains The cutout is the first intermediate band-shaped virtual region has not only a start-end cutout portion having a bottom located between the start-end band-shaped virtual region and the first intermediate band-shaped virtual region, but also an intermediate cutout portion that is continuous with the start-end cutout portion in the Y-axis direction and has a bottom located at an end of the first intermediate band-shaped virtual region; The protrusion is The axial direction of the axial groove is opposite to the starting end cutout portion, and the axial direction of the axial groove is opposite to the starting end cutout portion. Display unit.

2. an end band-shaped virtual region is located adjacent to the first intermediate band-shaped virtual region on the opposite side of the start band-shaped virtual region in the Y-axis direction, the end band-shaped virtual region being the band-shaped virtual region that includes the light-emitting element positioned at the same position in the X-axis direction as the edge light-emitting element; The cutout is the first intermediate band-shaped virtual area further has a terminal cutout portion having a bottom located between the terminal band-shaped virtual area and the first intermediate band-shaped virtual area, the terminal cutout portion continuously extending in the Y-axis direction from the start cutout portion to the terminal cutout portion, The protrusion is The terminal protrusion portion further has a terminal protrusion portion facing the terminal notch portion in the X-axis direction, and extends continuously in the Y-axis direction from the start protrusion portion to the terminal protrusion portion. The display unit according to claim 1 .

3. an end band-shaped virtual region is located on the opposite side of the first intermediate band-shaped virtual region from the start band-shaped virtual region in the Y-axis direction, via at least one band-shaped virtual region, the end band-shaped virtual region being the band-shaped virtual region that includes the light-emitting element that is located at the same position in the X-axis direction as the edge light-emitting element; When the band-shaped virtual area interposed between the first intermediate band-shaped virtual area and the end band-shaped virtual area is defined as a second intermediate band-shaped virtual area, the light-emitting element closest to the end side portion in the light-emitting element row included in the second intermediate band-shaped virtual area is shifted inward with respect to the edge light-emitting element, The cutout is the first intermediate band-shaped virtual area is adjacent to the first intermediate band-shaped virtual area, and the second intermediate band-shaped virtual area is adjacent to the first intermediate band-shaped virtual area. The first intermediate band-shaped virtual area further includes an end cutout portion having a bottom located between the end cutout portion and the second intermediate band-shaped virtual area adjacent to the end cutout portion, the end cutout portion continuously extending in the Y-axis direction from the start cutout portion to the end cutout portion. The protrusion is The terminal protrusion portion further has a terminal protrusion portion facing the terminal notch portion in the X-axis direction, and extends continuously in the Y-axis direction from the start protrusion portion to the terminal protrusion portion. The display unit according to claim 1 .

4. In all of the light-emitting element rows aligned in the Y-axis direction, the arrangement pitch of the light-emitting elements in the X-axis direction is equal. The display unit according to any one of claims 1 to 3.

5. The plurality of light emitting element rows arranged in the Y-axis direction include: the light emitting element row in which the light emitting elements are aligned in the X-axis direction at a first arrangement pitch; the light emitting element row in which the light emitting elements are arranged in the X-axis direction at a second arrangement pitch different from the first arrangement pitch; 4. The display unit according to claim 1, comprising:

6. Each of the light-emitting elements constituting the light-emitting element group is The circuit board has a shape with one longitudinal direction in a plan view, and is arranged so that the longitudinal direction coincides with the X-axis direction. The display unit according to any one of claims 1 to 3.

7. a distance in the X-axis direction between the edge light-emitting element and the edge portion is smaller than a depth in the X-axis direction of the notch; The display unit according to any one of claims 1 to 3.

8. A display device comprising a plurality of display units according to any one of claims 1 to 3, A plurality of the display units are combined together. Display device.

9. a first display unit selected from the plurality of display units constituting the display device and a second display unit adjacent to the first display unit in the X-axis direction are aligned in the Y-axis direction with respect to the light-emitting element rows; a first light-emitting element in a first light-emitting element row selected from the plurality of light-emitting element rows of the first display unit, the light-emitting element being closest to the second display unit; When the light emitting element closest to the first display unit in a second light emitting element row, which is the light emitting element row of the second display unit and which is located at the same position in the X-axis direction as the first light emitting element row, is defined as a second light emitting element, a distance in the X-axis direction between the first light-emitting element and the second light-emitting element is equal to an arrangement pitch in the X-axis direction of the light-emitting elements in the first light-emitting element row and an arrangement pitch in the X-axis direction of the light-emitting elements in the second light-emitting element row; The display device according to claim 8 .

Images