Display device

Abstract

A light emitting device according to the present invention includes: a first support member having translucency; a plurality of first light emitting elements arranged on the first support member along a first direction; a plurality of first conductive parts; a plurality of second conductive parts; and a first control part. The first conductive parts extend in a second direction orthogonal to the first direction on the first support member, and are connected to first electrodes of the first light emitting elements. The second conductive parts extend in the second direction on the first support member and are connected to second electrodes of the first light emitting elements. The second conductive parts are arranged between a first outer edge on the outside in the first direction of one first end light emitting element positioned at one end in the first direction and a second outer edge on the outside in the first direction of the other first end light emitting element positioned at the other end in the first direction.

Description

display device

[0001] The embodiment relates to a display device.

[0002] Vehicles such as automobiles are equipped with display devices that display information such as speed to the driver. In recent years, such display devices have been gradually replacing physical meters with digital meters. Typically, digital meters use liquid crystal panels. However, liquid crystal panels have the problem of consuming a lot of power.

[0003] Japanese Patent Application Laid-Open No. 2003-248461

[0004] The embodiments have been made in consideration of the above-mentioned problems, and have an object to provide a display device that can reduce power consumption.

[0005] The light-emitting device according to the embodiment includes a first support member having translucency, a plurality of first light-emitting elements arranged on the first support member along a first direction, a plurality of first conductive portions, a plurality of second conductive portions, and a first control unit. Each of the first light-emitting elements has a light extraction surface facing the first support member, an electrode formation surface located on the opposite side of the light extraction surface, a first electrode arranged on the electrode formation surface, and a second electrode arranged on the electrode formation surface. The first conductive portions extend in a second direction perpendicular to the first direction on the first support member and are electrically connected to the first electrodes, respectively. The second conductive portions extend in the second direction on the first support member and are electrically connected to the second electrodes, respectively. The first control unit is arranged apart from the first light-emitting elements in the second direction. The plurality of second conductive portions are disposed between a first outer edge in the first direction of one of the plurality of first end light-emitting elements located at one end in the first direction and a second outer edge in the first direction of the other of the plurality of first end light-emitting elements located at the other end in the first direction. The first control unit is electrically connected to at least one first light-emitting element of the plurality of first light-emitting elements via at least one first conductive portion of the plurality of first conductive portions and at least one second conductive portion of the plurality of second conductive portions.

[0006] According to the embodiment, a display device capable of reducing power consumption can be realized.

[0007] FIG. 1 is a plan view showing a display device according to a first embodiment. FIG. 2 is a plan view showing one panel in the display device according to the first embodiment. FIG. 3 is a cross-sectional view showing the display device according to the first embodiment. FIG. 4 is a cross-sectional view showing one first light-emitting element in the display device according to the first embodiment. FIG. 5 is a plan view showing one unit and its periphery in the display device according to the first embodiment. FIG. 6 is a circuit diagram showing the display device according to the first embodiment. FIG. 7 is a plan view showing a first light adjustment member in the display device according to the first embodiment. FIG. 8 is a block diagram showing a first control unit in the display device according to the first embodiment. FIG. 9 is a partially enlarged plan view showing one panel of the display device according to the first embodiment. FIG. 10 is a partially enlarged plan view showing the positional relationship within one panel. FIG. 11 is a plan view showing a display device according to a first modified example of the first embodiment. FIG. 12 is a partially enlarged plan view showing a display device according to a second modified example of the first embodiment. FIG. 13 is a partially enlarged plan view showing a display device according to a third modified example of the first embodiment. FIG. 14 is a cross-sectional view taken along line XIV-XIV in FIG. 13. FIG. 15 is a cross-sectional view showing a display device according to a fourth modified example of the first embodiment. FIG. 16 is a partially enlarged plan view showing a display device according to a fifth modified example of the first embodiment. FIG. 17 is a cross-sectional view taken along line XVII-XVII in FIG. 16. FIG. 18 is a cross-sectional view showing a display device according to the second embodiment. FIG. 19 is a plan view showing a display device according to the third embodiment. FIG. 20 is a cross-sectional view taken along line XX-XX in FIG. 19. FIG. 21 is a plan view showing a display device according to the fourth embodiment. FIG. 22 is a diagram showing the operation of the display device according to the fourth embodiment. FIG. 23 is a plan view showing a display device according to the fifth embodiment. FIG. 24 is a diagram showing the interior of a traffic vehicle according to the sixth embodiment. FIG. 25 is a diagram showing an image displayed by the display device according to the sixth embodiment. FIG. 26 is a diagram showing the rear surface of a traffic vehicle according to a first modified example of the sixth embodiment. FIG. 27 is a diagram showing the front surface of a traffic vehicle according to a second modified example of the sixth embodiment. FIG. 28 is a cross-sectional view showing the windshield of a traffic vehicle according to a second modified example of the sixth embodiment.

[0008] <First embodiment> Fig. 1 is a plan view showing a display device according to this embodiment. Fig. 2 is a plan view showing one panel in the display device according to this embodiment. Fig. 3 is a cross-sectional view showing the display device according to this embodiment. Fig. 4 is a cross-sectional view showing one first light-emitting element in the display device according to this embodiment. Fig. 5 is a plan view showing one unit and its periphery in the display device according to this embodiment. Fig. 6 is a circuit diagram showing the display device according to this embodiment. Fig. 7 is a plan view showing a first light adjustment member in the display device according to this embodiment. Fig. 8 is a block diagram showing a first control unit in the display device according to this embodiment.

[0009] The drawings are schematic and conceptual, and have been appropriately emphasized and simplified. Furthermore, even if the same components are shown in the drawings, the dimensional ratios, positional relationships, numbers, etc. may not be strictly consistent. The same applies to the other drawings described below.

[0010] 1, the display device 1 according to this embodiment includes one mounting substrate 100, multiple panels 200, and one flexible wiring 300. The flexible wiring 300 may be divided into multiple pieces. The display device 1 displays one image by linking the multiple panels 200.

[0011] The mounting substrate 100 is translucent and is made of, for example, glass. The mounting substrate 100 may be a flexible substrate that is both translucent and flexible. The multiple panels 200 are arranged in a line along one direction. The flexible wiring 300 is arranged across the multiple panels 200, connecting the multiple panels 200 to each other and connecting at least one panel 200 to the outside of the display device 1. The flexible wiring 300 is flexible and is, for example, an FPC (Flexible Printed Circuits). In the flexible wiring 300, multiple wirings 302 are provided on a tape-shaped insulating base 301.

[0012] For ease of explanation, the present specification will hereinafter adopt an XYZ Cartesian coordinate system. The direction parallel to the surface of the mounting substrate 100 and in which the multiple panels 200 are arranged will be referred to as the "first direction X," the direction parallel to the surface of the mounting substrate 100 and perpendicular to the first direction X will be referred to as the "second direction Y," and the direction perpendicular to the first direction X and the second direction Y will be referred to as the "third direction Z."

[0013] Regarding the first direction X, a distinction is made between a "+X direction" and a "-X direction" as necessary. The same applies to the second direction Y and the third direction Z. Of the third direction Z, the direction from the mounting substrate 100 toward the panel 200 is referred to as the "+Z direction," and the opposite direction is referred to as the "-Z direction." The +Z direction is also referred to as "up" and the -Z direction as "down," but these expressions are also for convenience and are unrelated to the direction of gravity. Furthermore, in this specification, "planar view" refers to the view from the third direction Z (+Z direction or -Z direction). In describing the planar view, even if something is actually hidden by other components and cannot be seen, the description may be given assuming that it is visible.

[0014] As shown in FIG. 1 , there are multiple types of panels 200. The display device 1 is provided with, for example, three types of panels 200a, 200b, and 200c. The panel 200a can display an image with the highest resolution, the panel 200b can display an image with a lower resolution than the panel 200a, and the panel 200c can display an image with a lower resolution than the panel 200b. The configurations of the panels 200a, 200b, and 200c will be described later. Note that the number of types of panels 200 is not limited to three, and may be two or four or more.

[0015] Any combination of panels 200 may be used in the display device 1. In the example shown in Fig. 1, seven panels 200 are arranged in order from the left side of the figure (the -X direction side): panel 200c, panel 200b, panel 200a, panel 200a, panel 200b, panel 200c, and panel 200c.

[0016] 2 and 3 , the panel 200a includes a first support member 10, a plurality of first light-emitting elements 21, a plurality of second light-emitting elements 22, a plurality of third light-emitting elements 23, a plurality of first conductive portions 31, a plurality of second conductive portions 32, a plurality of third conductive portions 33, a plurality of fourth conductive portions 34, a plurality of fifth conductive portions 35, a first control unit 51, one first light adjustment member 61, an insulating covering member 71, an anisotropic connecting member 72, a connecting member 73, and a protective member 74. Note that some of these components may not be provided.

[0017] The shape of the first support member 10 is, for example, a rectangular plate with the second direction Y as the longitudinal direction, the first direction X as the lateral direction, and the third direction Z as the thickness direction. Note that the term "rectangle" here refers not only to a quadrangle with right-angled corners, but also to a shape with chamfered corners. A shape with chamfered corners includes a shape in which two orthogonal sides are connected via a curve, or a shape in which two orthogonal sides are connected via an oblique straight line. The first support member 10 is translucent. The first support member 10 is made of, for example, glass. The first support member 10 may be a flexible substrate that is both translucent and flexible.

[0018] An image forming area 11 is defined on the upper surface of the first support member 10, i.e., on the area on the +Y direction side of the surface on the +Z direction side. A wiring connection area 12 is defined on the end of the upper surface of the first support member 10 on the -Y direction side. The first control unit 51 is disposed between the image forming area 11 and the wiring connection area 12 on the first support member 10, and is spaced apart from the image forming area 11 and the wiring connection area 12 in the second direction Y.

[0019] In the image forming region 11, a plurality of element regions 13 and a plurality of wiring regions 14 are alternately arranged along the first direction X. Each element region 13 and each wiring region 14 is shaped like a strip with the second direction Y as its longitudinal direction. In the image forming region 11, element regions 13 are arranged at both ends in the first direction X. Therefore, the number of wiring regions 14 is one less than the number of element regions 13. For example, 50 element regions 13 and 49 wiring regions 14 are provided.

[0020] In each element region 13, a first light-emitting element 21, a second light-emitting element 22, and a third light-emitting element 23 are repeatedly arranged in a row along the second direction Y. The first light-emitting element 21 is a blue light-emitting element, for example, an LED (light-emitting diode) whose peak wavelength of emitted light is in the range of 430 nm to 480 nm. The second light-emitting element 22 is a green light-emitting element, for example, an LED whose peak wavelength of emitted light is in the range of 500 nm to 580 nm. The third light-emitting element 23 is a red light-emitting element, for example, an LED whose peak wavelength of emitted light is in the range of 600 nm to 780 nm.

[0021] In the entire image forming region 11, across the plurality of element regions 13, a plurality of first light-emitting elements 21 are arranged on the first support member 10 along the first direction X, a plurality of second light-emitting elements 22 are arranged on the first support member 10 along the first direction X, and a plurality of third light-emitting elements 23 are arranged on the first support member 10 along the first direction X. Furthermore, the plurality of second light-emitting elements 22 are arranged spaced apart from the plurality of first light-emitting elements 21 in the second direction Y, and the plurality of third light-emitting elements 23 are arranged spaced apart from the plurality of second light-emitting elements 22 in the second direction Y.

[0022] As shown in FIG. 4 , each of the first light-emitting elements 21 has a light-extraction surface 21a, an electrode-forming surface 21b, and multiple side surfaces 21c. The "light-extraction surface" refers to the main surface from which light is emitted from the light-emitting element, but not all of the light needs to be emitted from the light-extraction surface. For example, a small amount of light may also be emitted from the side surfaces 21c. The light-extraction surface 21a faces the first support member 10. The electrode-forming surface 21b is located on the opposite side of the light-extraction surface 21a. The side surfaces 21c connect the light-extraction surface 21a and the electrode-forming surface 21b. In one example, the light-extraction surface 21a is square, and the electrode-forming surface 21b is square and smaller than the light-extraction surface 21a. There are four side surfaces 21c, each of which is trapezoidal. Note that the shapes of the light-extraction surface 21a, the electrode-forming surface 21b, and the side surfaces 21c may be rectangular.

[0023] Each first light-emitting element 21 has a semiconductor portion 21d, a first electrode 21e, and a second electrode 21f. The semiconductor portion 21d includes a p-type semiconductor layer, an active layer, and an n-type semiconductor layer. The first electrode 21e and the second electrode 21f are arranged spaced apart from each other on the electrode formation surface 21b. The first electrode 21e is connected to the p-type semiconductor layer of the semiconductor portion 21d, and the second electrode 21f is connected to the n-type semiconductor layer of the semiconductor portion 21d. The first light-emitting element 21 may have an insulating layer covering the region of the electrode formation surface 21b excluding the first electrode 21e and the second electrode 21f, as well as the side surface 21c. The same applies to the second light-emitting element 22 and the third light-emitting element 23.

[0024] The structure of the semiconductor portion 21d may be a structure having a single active layer such as a double heterostructure or a single quantum well structure (SQW), or a structure having a group of active layers such as a multiple quantum well structure (MQW). The semiconductor portion 21d can emit visible light or ultraviolet light. The semiconductor portion 21d can emit visible light ranging from blue to red. Examples of semiconductor laminates including such a light emitting layer include In ｘ Al ｙ Ga １－ｘ－ｙ N (0≦x, 0≦y, x+y≦1). The semiconductor portion 21d can include at least one light-emitting layer (active layer) capable of emitting light. For example, the semiconductor portion 21d may have a structure including one or more light-emitting layers between an n-type semiconductor layer and a p-type semiconductor layer, or may have a structure in which a structure including an n-type semiconductor layer, a light-emitting layer, and a p-type semiconductor layer in that order is repeated multiple times. When the semiconductor stack includes multiple light-emitting layers, the light-emitting layers may have different peak wavelengths or may have light-emitting layers with the same peak wavelength. Note that the same peak wavelength may have a variation of, for example, several nanometers. The combination of such light-emitting layers can be appropriately selected. For example, when the semiconductor stack includes two light-emitting layers, the light-emitting layers can be selected from combinations such as blue light and blue light, green light and green light, red light and red light, ultraviolet light and ultraviolet light, blue light and green light, blue light and red light, or green light and red light. Furthermore, the light-emitting layer may include multiple active layers with different peak wavelengths or multiple active layers with the same peak wavelength.

[0025] As shown in FIGS. 2 and 5 , one first conductive portion 31 is disposed in each element region 13. The first conductive portion 31 is a wiring extending in the second direction Y and includes, for example, copper (Cu). The first conductive portion 31 may be formed of a conductive and translucent material such as ITO (Indium-Tin-Oxide). The first conductive portion 31 is positioned on the +Z direction side of the first light-emitting element 21, the second light-emitting element 22, and the third light-emitting element 23 (hereinafter collectively referred to as "light-emitting element 20") disposed in the same element region 13, and overlaps the light-emitting element 20 in a plan view. The covering member 71 and the protective member 74 are not shown in FIG. 5 .

[0026] The first conductive portion 31 is electrically connected to the first electrode 21 e of the first light-emitting element 21 that overlaps it in a planar view via the third conductive portion 33. Similarly, the first conductive portion 31 is electrically connected to the first electrode of the second light-emitting element 22 that overlaps it in a planar view, and to the first electrode of the third light-emitting element 23 that overlaps it in a planar view. For example, one first conductive portion 31 arranged in each element region 13 is electrically connected to the first electrodes of all the light-emitting elements 20 arranged in this element region 13.

[0027] In the panel 200a, the plurality of third conductive portions 33 extend in the first direction X and connect the plurality of first electrodes 21e to the plurality of first conductive portions 31. In other words, in a plan view, one of the plurality of first light-emitting elements 21 is disposed on top of one of the plurality of first conductive portions 31, and this one first light-emitting element 21 is electrically connected to this one first conductive portion 31.

[0028] A plurality of second conductive portions 32 are arranged in each wiring region 14. The plurality of second conductive portions 32 extend in the second direction Y on the first support member 10 and are electrically connected to the second electrodes 21f of the plurality of light-emitting elements 20 via fourth conductive portions 34. In the panel 200a, the plurality of fourth conductive portions 34 extend in the first direction X and connect the plurality of second electrodes 21f to the plurality of second conductive portions 32, respectively. The second conductive portions 32 include, for example, copper. The second conductive portions 32 may be formed of a material having conductivity and translucency, such as ITO. The third conductive portion 33 and the fourth conductive portion 34 include, for example, aluminum (Al).

[0029] 6 , the first electrodes of the plurality of light-emitting elements 20 arranged in each element region 13 are commonly connected to a single first conductive portion 31, and the second electrodes are individually connected to mutually different second conductive portions 32. Furthermore, the second electrodes of the light-emitting elements 20 arranged in mutually different element regions 13 and at the same position in the second direction Y are connected to the common second conductive portion 32 via a common fourth conductive portion 34. The first conductive portion 31 and the second conductive portion 32 are electrically connected to the first control unit 51. For example, the first electrode is an anode electrode of the light-emitting element, and the second electrode is a cathode electrode of the light-emitting element.

[0030] The third conductive portion 33 and the fourth conductive portion 34 may be arranged to cover the side surfaces of the light emitting element 20. This allows the light emitted from the light emitting element 20 to be reflected by the third conductive portion 33 and the fourth conductive portion 34, thereby improving the light extraction efficiency.

[0031] As shown in FIGS. 3 and 7 , the first light adjustment members 61 are positioned on the upper surface of the first support member 10 around each of the plurality of first light-emitting elements 21. The first light adjustment members 61 are made of a light-absorbing resin material or metal material. For example, the first light adjustment members 61 can be made of an insulating resin material such as acrylic, polyimide, or siloxane. These resins can be made light-absorbent by adding black pigments such as carbon black or graphite. Having light absorption means that the reflectance of the first light adjustment members 61 is 0% or more and 50% or less, more preferably 0% or more and 40% or less, at the emission peak wavelength of the light-emitting elements.

[0032] In this embodiment, a plurality of openings 61a are provided in the first light adjustment member 61. A unit 29, which is composed of one first light-emitting element 21, one second light-emitting element 22, and one third light-emitting element 23 arranged adjacent to each other in the second direction Y, is disposed in each opening 61a. Therefore, the first light adjustment member 61 is not disposed between the first support member 10 and the light-emitting elements 20. Furthermore, the first light adjustment member 61 is not disposed between the first light-emitting element 21 and the second light-emitting element 22 belonging to each unit 29, and between the second light-emitting element 22 and the third light-emitting element 23.

[0033] The covering member 71 is disposed on the first support member 10 and covers the light-emitting element 20, the third conductive portion 33, and the fourth conductive portion 34. The covering member 71 is made of an insulating material, for example, an insulating inorganic material. The linear expansion coefficient of the covering member 71 is greater than the linear expansion coefficient of the first support member 10. The covering member 71 is, for example, a white light-reflecting member. The covering member 71 is formed of, for example, a white resin. The covering member 71 may contain a light-reflecting material. Examples of light-reflecting materials include titanium oxide, zinc oxide, silicon oxide, zirconium oxide, aluminum oxide, and aluminum nitride. The covering member 71 has a first surface 71a disposed opposite the first support member 10 and a second surface 71b located on the opposite side of the first surface 71a.

[0034] The third conductive portion 33 and the fourth conductive portion 34 are disposed on the first surface 71a side (lower side) of the covering member 71 and extend in the first direction X. The first conductive portion 31 and the second conductive portion 32 are disposed on the second surface 71b side (upper side) of the covering member 71 and extend in the second direction Y. As shown in Fig. 5 , in a plan view, in a portion where the fourth conductive portion 34 and the second conductive portion 32 overlap, the minimum length 34L of the fourth conductive portion 34 in the second direction Y is shorter than the minimum length 32L of the second conductive portion 32 in the first direction X. In other words, 34L < 32L.

[0035] 3 , in the panel 200, a first support member 10, a covering member 71, and a protective member 74 are layered in this order from the −Z direction side to the +Z direction side. The light emitting element 20, the third conductive portion 33, the fourth conductive portion 34, and the first light adjustment member 61 are disposed between the first support member 10 and the covering member 71. The first conductive portion 31, the second conductive portion 32, the anisotropic connection member 72, and the first control unit 51 are disposed between the covering member 71 and the protective member 74.

[0036] The first control unit 51 is electrically connected to at least one first light-emitting element 21 among the plurality of first light-emitting elements 21 via at least one first conductive portion 31 among the plurality of first conductive portions 31 and at least one second conductive portion 32 among the plurality of second conductive portions 32. For example, the first control unit 51 is electrically connected to all of the first light-emitting elements 21, all of the second light-emitting elements 22, and all of the third light-emitting elements 23. The first control unit 51 is, for example, an IC (integrated circuit) chip. Note that the first control unit 51 may be composed of multiple chips.

[0037] The first control unit 51 is electrically connected to the plurality of first conductive portions 31 and the plurality of second conductive portions 32 via an anisotropic connecting member 72. The anisotropic connecting member 72 contains a conductive material. For example, the first control unit 51 and the first conductive portion 31 are electrically connected via the conductive material by sandwiching the conductive material between them and making contact with both. The anisotropic connecting member 72 includes, for example, an anisotropic conductive paste or an anisotropic conductive film. Use of the anisotropic connecting member 72 makes it easier to reduce the thickness and reduces the likelihood of short-circuiting even when the first conductive portion 31 and the second conductive portion 32 are spaced apart, compared to the case where an isotropic connecting member such as solder is used. Note that an isotropic connecting member may be used instead of the anisotropic connecting member 72 as the member electrically connecting the first control unit 51 and the fifth conductive portion 35.

[0038] The first control unit 51 is connected to the fifth conductive unit 35 via an anisotropic connecting member 72. In the wiring connection region 12, the fifth conductive unit 35 is connected to a wiring 302 of the flexible wiring 300 via a connecting member 73. The wiring 302 extends in the first direction X.

[0039] The protective member 74 is disposed on the covering member 71, and covers the first conductive portion 31, the second conductive portion 32, the third conductive portion 33, the fourth conductive portion 34, the anisotropic connecting member 72, and the first control unit 51. The protective member 74 does not cover the connecting member 73 or the flexible wiring 300.

[0040] In the panel 200a, units 29 are periodically arranged along the first direction X and the second direction Y. As described above, each unit 29 is composed of one first light-emitting element 21, one second light-emitting element 22, and one third light-emitting element 23 arranged adjacent to each other in the second direction Y. Note that each unit 29 may be composed of one or two of the first light-emitting element 21, the second light-emitting element 22, and the third light-emitting element 23, or may be composed of four or more light-emitting elements 20. Each unit 29 may include two or more of any of the first light-emitting element 21, the second light-emitting element 22, and the third light-emitting element 23.

[0041] In panel 200b, the units 29 are arranged at a lower density than in panel 200a. For example, the arrangement density of the units 29 in panel 200b is ½ times the arrangement density of the units 29 in panel 200a. In panel 200c, the units 29 are arranged at a lower density than in panel 200b. For example, the arrangement density of the units 29 in panel 200c is ½ times the arrangement density of the units 29 in panel 200b. In other words, the arrangement density of the units 29 in panel 200c is ¼ times the arrangement density of the units 29 in panel 200a.

[0042] 1 , the panel 200b has a second support member 15, a plurality of fourth light-emitting elements 24, and a second control unit 52. That is, the display device 1 further includes a light-transmitting second support member 15 arranged adjacent to the first support member 10 in the first direction X, a plurality of fourth light-emitting elements 24 arranged on the second support member 15 in the first direction X, and a second control unit 52 arranged apart from the plurality of fourth light-emitting elements 24 in the second direction Y and electrically connected to at least some of the plurality of fourth light-emitting elements 24.

[0043] The configurations of the second support member 15, the fourth light-emitting element 24, and the second control unit 52 are the same as those of the first support member 10, the first light-emitting element 21, and the first control unit 51, respectively. The term "the configuration of the second control unit 52 is the same as that of the first control unit 51" means that the physical structure of the second control unit 52, for example, the shape, arrangement, and connection relationships of the elements and wiring included in the second control unit 52, are the same as those of the first control unit 51; however, the stored data may be different. "The same configuration" means that the components are manufactured based on the same design, and unavoidable manufacturing process errors and variations in material composition are included in the scope of "same." The target performance of components with the same configuration is the same; for example, the peak wavelength of the emitted light of the fourth light-emitting element 24 is in the same range as the peak wavelength of the emitted light of the first light-emitting element 21. Similar to the panel 200a, the panel 200c includes a first support member 10, a plurality of light-emitting elements 20, a first control unit 51, and the like.

[0044] The panel 200 arranged at one end of the display device 1 is also referred to as the "primary panel," and the other panels 200 are also referred to as "secondary panels." The first control units 51 of all the panels 200 are bus-connected via flexible wiring 300. The primary panel may be any of panels 200a, 200b, and 200c. FIG. 1 shows an example in which the primary panel is one of the panels 200c.

[0045] 8 shows a first control unit 51 of the primary panel and a first control unit 51 of a secondary panel disposed adjacent to the primary panel. As shown in FIG. 8, the first control unit 51 includes a conversion unit 51c, a storage unit 51d, and a current output unit 51e. Image data D1 in a first format is input to the conversion unit 51c of the primary panel from outside the display device 1 via flexible wiring 300. The conversion unit 51c converts the image data D1 in the first format into image data D2 in a second format and outputs the image data D2 to the storage unit 51d. The storage unit 51d temporarily stores the image data D2 of all panels 200 and outputs the portion of the image data D2 to be displayed on the secondary panel to the flexible wiring 300.

[0046] A first potential V1 and a second potential V2 are supplied to the current output unit 51e. The first potential V1 is higher than the second potential V2. The current output unit 51e applies the first potential V1 to the first conductive unit 31. The current output unit 51e also controls the magnitude of the current input from the second conductive unit 32 and / or the time for which the current is passed, based on image data D2 stored in the memory unit 51d. In this way, the first control unit 51 controls the light emission of the multiple light-emitting elements 20 of the panel 200 to which the first control unit 51 belongs.

[0047] In the secondary panel, the conversion unit 51c of the first control unit 51 takes in the portion of the second-format image data D2 input via the flexible wiring 300 that is to be displayed by the panel 200 on which the first control unit 51 is provided, and stores it in the memory unit 51d. The current output unit 51e controls the light emission of the plurality of light-emitting elements 20 of the panel 200 based on the image data D2 stored in the memory unit 51d.

[0048] In this way, image data D1 in the first format input from outside the display device 1 is supplied only to the first control unit 51 of the primary panel, and image data D2 in the second format output from the first control unit 51 of the primary panel is supplied to the first control unit 51 of the secondary panel. The first control unit 51 of each secondary panel stores only the portion of the image data D2 flowing through the flexible wiring 300 that corresponds to that panel.

[0049] Alternatively, the conversion unit 51c of the primary panel may be connected to an external memory 400 provided outside the display device 1, and the image data D2 converted by the conversion unit 51c may be temporarily stored in the external memory 400. After that, the image data D2 corresponding to each panel 200 may be sequentially read from the external memory 400 to the storage unit 51d, and sequentially output from the storage unit 51d to the flexible wiring 300. This allows the capacity of the storage unit 51d to be reduced.

[0050] Next, the planar arrangement of each component will be described. Fig. 9 is a partially enlarged plan view showing one panel of the display device according to this embodiment. Fig. 10 is a partially enlarged plan view showing the positional relationship within one panel. In Fig. 9, the element regions 13 are numbered "1" to "50" in order from the -X direction side.

[0051] As described above, in the display device 1, a plurality of panels 200 are arranged on a single mounting substrate 100 along the first direction X. A single image is displayed by a plurality of light-emitting elements 20 arranged on the plurality of panels 200. For this reason, it is preferable that the light-emitting elements 20 are arranged periodically throughout the entire display device 1. In other words, it is preferable that the periodicity of the light-emitting elements 20 is maintained even between adjacent panels 200.

[0052] On the other hand, in order to ensure workability when placing the panels 200 on the mounting substrate 100, it is necessary to provide a certain amount of gap between adjacent panels 200. Therefore, it is preferable to place the light emitting elements 20 on each panel 200 at positions close to both ends of the first support member 10 in the first direction X.

[0053] 9 , in this embodiment, element regions 13 are arranged at both ends of the image forming region 11 in the first direction X, and wiring regions 14 are arranged between the element regions 13. Therefore, the number of wiring regions 14 included in one panel 200 is one less than the number of element regions 13. Since the same number of second conductive portions 32 as the light-emitting elements 20 are required, the average number of second conductive portions 32 included in one wiring region 14 is greater than the number of light-emitting elements 20 included in one element region 13.

[0054] When the number of element regions 13 included in one panel 200a is N and the number of light-emitting elements 20 included in one element region 13 is M, the number of wiring regions 14 is (N-1), the number of light-emitting elements 20 in the entire panel 200 is (N×M), and the number of required second conductive portions 32 is M. If the same number of second conductive portions 32 are arranged in each wiring region 14, the number of second conductive portions 32 arranged in each wiring region 14 will be M / (N-1) or more.

[0055] Furthermore, in this embodiment, in the element region 13 ("1") arranged furthest to the -X direction, the light emitting elements 20 are arranged at the end on the -X direction side, and in the element region 13 ("50") arranged furthest to the +X direction, the light emitting elements 20 are arranged at the end on the +X direction side. This makes it possible to shorten the length of the first support substrate 10 in the first direction X while realizing the periodicity of the light emitting elements 20 in the first direction X. In the element regions 13 arranged at positions other than both ends in the first direction X, the light emitting elements 20 are arranged at the end on the -X direction side. Therefore, the wiring region 14 arranged between the element region 13 ("50") arranged furthest to the +X direction and the element region 13 ("49") arranged second furthest to the +X direction side has a shorter length in the first direction X than the other wiring regions 14.

[0056] As an example, if N is 50 and M is 360 (=120 units × 3 colors), the required number of second conductive parts 32 is 360 (=50 × 360), and the average number of second conductive parts 32 to be arranged in one wiring region 14 is approximately 7.35 (=360 / 49). If eight second conductive parts 32 are arranged in each wiring region 14, the total number of second conductive parts 32 in the entire panel 200a will be 392 (=8 × 49), with 32 remaining. Therefore, by reducing the number of second conductive parts 32 in the wiring region 14 arranged furthest to the +X direction, the width of the wiring region 14, i.e., its length in the first direction X, can be shortened. This allows the above-described configuration to be realized.

[0057] The remaining second conductive portion 32 may be used as dummy wiring. Dummy wiring is wiring that is not used in driving the display device 1. In other words, it is wiring through which no current flows to light up each light-emitting element 20. The dummy wiring does not have to be connected to at least one of the first control unit 51 and the light-emitting element 20, and may be connected to both the first control unit 51 and the light-emitting element 20. By providing dummy wiring, warping of the panel 200 can be reduced.

[0058] As shown in FIG. 10 , in each panel 200, the multiple second conductive portions 32 are arranged between a first outer edge 21h on the outside in the first direction X of one of the multiple first end light-emitting elements 21g, which is located at one end in the first direction X (the end on the −X direction side) of the multiple first light-emitting elements 21, and a second outer edge 21k on the outside in the first direction X of the other of the multiple first end light-emitting elements 21j, which is located at the other end in the first direction X (the end on the +X direction side) of the multiple first light-emitting elements 21.

[0059] In addition, the multiple second conductive portions 32 are arranged between a third outer edge 31h on the outside in the first direction X of one first end conductive portion 31g located at one end in the first direction X (the end on the -X direction side) of the multiple first conductive portions 31, and a fourth outer edge 31k on the outside in the first direction X of the other first end conductive portion 31j located at the other end in the first direction X (the end on the +X direction side) of the multiple first conductive portions 31.

[0060] Furthermore, in the image forming region 11, it is preferable that the shortest distance L1 between the first center 21o of one of the first end light-emitting elements 21g in the first direction X and the above-mentioned third outer edge 31h is shorter than the shortest distance L2 between the first center 21o and the inner first inner edge 31q of one of the first end conductive portions 31g in the first direction X. In other words, it is preferable that L1<L2.

[0061] Similarly, it is preferable that the shortest distance L3 between the second center 21p of the other first end light-emitting element 21j in the first direction X and the above-mentioned fourth outer edge 31k be shorter than the shortest distance L4 between the second center 21p and the inner second inner edge 31r of the other first end conductive portion 31j in the first direction X. In other words, it is preferable that L3<L4.

[0062] Furthermore, the plurality of third conductive portions 33 are preferably arranged between the first outer edge 21h and the second outer edge 21k.

[0063] Furthermore, it is preferable that the maximum distance L5 from the outer fifth outer edge 33h of the third conductive part 33 in the second direction Y to the first control part 51 be shorter than the maximum distance L6 from the outermost sixth outer edge 21q in the second direction Y of the first light-emitting element 21 connected to this third conductive part 33 to the first control part 51. In other words, it is preferable that L5<L6.

[0064] Furthermore, the plurality of fourth conductive portions 34 are preferably arranged between the first outer edge 21h and the second outer edge 21k.

[0065] The maximum distance L7 from the seventh outer edge 34q on the outside of the fourth conductive part 34 in the second direction Y to the first control part 51 is preferably shorter than the maximum distance L6 from the sixth outer edge 21q to the first control part 51. In other words, it is preferable that L7<L6.

[0066] Next, the operation of the display device 1 according to this embodiment will be described. As shown in Fig. 1, in this embodiment, image data input from outside the display device 1 is distributed to each panel 200 via flexible wiring 300 by bus address connection.

[0067] 8, image data D1 in a first format is input from outside the display device 1 to the first control unit 51 of the primary panel via flexible wiring 300. The image data D1 corresponds to one image to be displayed by the display device 1.

[0068] The conversion unit 51c of the primary panel converts the image data D1 in the first format into image data D2 in the second format. At this time, the conversion unit 51c adds address data corresponding to each panel 200 to the image data D2. The conversion unit 51c then outputs the image data D2 to the storage unit 51d.

[0069] The storage unit 51d of the primary panel references the address data and outputs the portion of the image data D2 to be displayed by the primary panel to the current output unit 51e, and outputs the remaining portion to the flexible wiring 300. Note that the storage unit 51d of the primary panel may output all of the image data D2 to the flexible wiring 300.

[0070] The current output unit 51e of the primary panel controls the light emission of the light-emitting elements 20 provided on the primary panel based on image data D2. Specifically, the current output unit 51e applies a first potential V1 to the first electrode of each light-emitting element 20 via the first conductive unit 31, and controls the amount of current flowing from the second electrode of each light-emitting element 20 to the current output unit 51e via the second conductive unit 32 based on image data D2. In this way, each light-emitting element 20 emits light at a predetermined luminance. Light emitted from each light-emitting element 20 passes through the first support member 10 and the mounting substrate 100 and is emitted from the display device 1 in the −Z direction. This causes a portion of an image to be displayed on the primary panel.

[0071] At least a portion of the image data D2 is input from the first control unit 51 of the primary panel to the first control unit 51 of the secondary panel via the flexible wiring 300. The conversion unit 51c of each secondary panel retrieves the portion of the image data D2 to be displayed by that panel 200 based on the address data included in the image data D2 and stores it in the memory unit 51d. The current output unit 51e then causes each light-emitting element 20 to emit light based on the image data D2 stored in the memory unit 51d. Light emitted from each light-emitting element 20 of each secondary panel passes through the first support member 10 and the mounting board 100 and exits the display device 1 in the -Z direction. In this way, each secondary panel displays a portion of the image. Each panel 200 displays a portion of the image, and the display device 1 as a whole displays a single image.

[0072] It is also possible to connect an external memory 400 to the conversion unit 51c of the primary panel, temporarily store the image data D2 converted by the conversion unit 51c in the external memory 400, and then sequentially output the image data D2 corresponding to each panel 200 to the storage unit 51d. Furthermore, in the present embodiment, an example has been shown in which the first control unit 51 passively controls each light-emitting element 20 via the first conductive unit 31 and the second conductive unit 32, but the method of controlling the light-emitting elements 20 is not limited to this, and for example, a transistor may be provided for each light-emitting element 20, and the first control unit 51 may actively control each light-emitting element 20.

[0073] Next, the effects of this embodiment will be described. The display device 1 according to this embodiment displays an image by controlling and lighting each of the light-emitting elements 20. This allows for reduced power consumption compared to when an image is displayed using a liquid crystal panel.

[0074] 1 , in the display device 1, any number of panels 200a, 200b, and 200c can be arranged in any order in the first direction X. This allows the panels 200a to be arranged in positions where high resolution display is required, and the panels 200c to be arranged in positions where low resolution is sufficient, in accordance with the image displayed by the display device 1. As a result, the resolution of each part of the display device 1 can be adjusted in accordance with the image, and the cost of the display device 1 can be reduced.

[0075] 10 , in each panel 200, a plurality of second conductive portions 32 are arranged between the first outer edge 21 h and the second outer edge 21 k. This allows the second conductive portions 32 to be arranged inside the region in which the plurality of first light-emitting elements 21 are arranged in the first direction X, thereby reducing the size of the first support member 10. As a result, the first light-emitting elements 21 are arranged periodically throughout the display device 1, and workability is improved when arranging the panel 200 on the mounting substrate 100.

[0076] Furthermore, in this embodiment, the plurality of second conductive portions 32 are arranged between the third outer edge 31 h and the fourth outer edge 31 k, which allows the second conductive portions 32 to be arranged inside the region in which the first conductive portions 31 are arranged in the first direction X, thereby enabling the first support member 10 to be made smaller.

[0077] Furthermore, in this embodiment, in a plan view, one of the plurality of first light-emitting elements 21 is arranged overlapping one of the plurality of first conductive portions 31, and this one first light-emitting element 21 is electrically connected to this one first conductive portion 31. By arranging the first light-emitting element 21 and the first conductive portion 31 overlapping each other in this way, heat generated from the first light-emitting element 21 can be dissipated via the first conductive portion 31, thereby improving heat dissipation and enabling the first support member 10 to be made smaller. Furthermore, by connecting the overlapping first conductive portion 31 and the first light-emitting element 21, the third conductive portion 33 can be shortened.

[0078] 10 , in the display device 1 according to this embodiment, the shortest distance L1 is shorter than the shortest distance L2, and the shortest distance L3 is shorter than the shortest distance L4. As described above, the shortest distance L1 is the shortest distance between the first center 21o of one first end light-emitting element 21g in the first direction X and the third outer edge 31h. The shortest distance L2 is the shortest distance between the first center 21o and the first inner edge 31q on the inside of one first end conductive portion 31g in the first direction X. The shortest distance L3 is the shortest distance between the second center 21p of the other first end light-emitting element 21j in the first direction X and the fourth outer edge 31k. The shortest distance L4 is the shortest distance between the second center 21p and the second inner edge 31r on the inside of the other first end conductive portion 31j in the first direction X. This allows the first light emitting elements 21 to be arranged near the outer edge of the area in which the first conductive portions 31 are arranged, thereby making it possible to reduce the size of the first support member 10 while maintaining the periodicity of the first light emitting elements 21.

[0079] Furthermore, in this embodiment, a plurality of third conductive parts 33 are arranged between the first outer edge 21h and the second outer edge 21k, which also contributes to reducing the size of the first support member 10.

[0080] Furthermore, in this embodiment, the maximum distance L5 is shorter than the maximum distance L6. As described above, the maximum distance L5 is the maximum distance from the outer fifth outer edge 33h of the third conductive part 33 in the second direction Y to the first control part 51. The maximum distance L6 is the maximum distance L6 from the outermost sixth outer edge 21q in the second direction Y of the first light-emitting element 21 connected to this third conductive part 33 to the first control part 51. This allows the first support member 10 to be made smaller in the second direction Y as well.

[0081] Furthermore, in this embodiment, the plurality of fourth conductive parts 34 are arranged between the first outer edge 21 h and the second outer edge 21 k. This also makes it possible to reduce the size of the first support member 10 in the first direction X.

[0082] Furthermore, in this embodiment, the maximum distance L7 is shorter than the maximum distance L6. As described above, the maximum distance L7 is the maximum distance from the seventh outer edge 34q on the outside of the fourth conductive part 34 in the second direction Y to the first control part 51. This also makes it possible to reduce the size of the first support member 10 in the second direction Y.

[0083] Furthermore, in this embodiment, as shown in FIG. 5 , in a plan view, in the portion where the fourth conductive portion 34 and the second conductive portion 32 overlap, the minimum length 34L of the fourth conductive portion 34 in the second direction Y is shorter than the minimum length 32L of the second conductive portion 32 in the first direction X. The fourth conductive portion 34 is located between the covering member 71 and the first support member 10, and the linear expansion coefficient of the first support member 10 is smaller than the linear expansion coefficient of the covering member 71. Therefore, the width of the fourth conductive portion 34 can be made smaller than the width of the second conductive portion 32. By reducing the width of the fourth conductive portion 34, the distance between the fourth conductive portions 34 increases, thereby reducing short circuits.

[0084] 3 and 7 , in this embodiment, a first light adjustment member 61 having light absorption properties is disposed around each of the light emitting elements 20. This makes it possible to reduce the amount of external light that has passed through the mounting substrate 100 and the first support member 10 reaching the first conductive portion 31 and the second conductive portion 32. As a result, it is possible to reduce the influence of external light reflected by the first conductive portion 31 and the second conductive portion 32 on the image.

[0085] Furthermore, in this embodiment, the first light-emitting element 21, the second light-emitting element 22, and the third light-emitting element 23 are arranged in each unit 29 along the second direction Y. This allows the element region 13 to be miniaturized in the first direction X, leaving more space in the wiring region 14. Furthermore, it is easier to connect the multiple light-emitting elements 20 belonging to each unit 29 to a common first conductive portion 31. In this specification, "the first light-emitting element 21, the second light-emitting element 22, and the third light-emitting element 23 are arranged in the second direction Y" means that at least a portion of each of the first light-emitting element 21, the second light-emitting element 22, and the third light-emitting element 23 is located on a straight line along the second direction Y. Note that the arrangement of the light-emitting elements 20 in each unit 29 is not limited to this, and three light-emitting elements may be arranged in a triangle, four light-emitting elements may be arranged in two rows and two columns, or multiple light-emitting elements may be stacked in the third direction Z.

[0086] Furthermore, in this embodiment, the first control unit 51 is located between the image forming area 11 and the wiring connection area 12 in the second direction Y. This makes it easier to shorten the distance between the first control unit 51 and the image forming area 11 in the second direction Y than when the wiring connection area 12 is located between the image forming area 11 and the first control unit 51. As a result, it is easier to shorten the length of the first conductive portion 31 and / or the second conductive portion 32, making it easier to reduce the wiring resistance of the first conductive portion 31 and / or the second conductive portion 32. Note that the wiring connection area 12 may be located between the image forming area 11 and the first control unit 51 in the second direction Y.

[0087] <First Modification of First Embodiment> Fig. 11 is a plan view showing a display device according to this modification. As shown in Fig. 11, a display device 1a according to this modification is provided with a first light adjustment member 61, a second light adjustment member 62, and a third light adjustment member 63. The first light adjustment member 61, the second light adjustment member 62, and the third light adjustment member 63 all have light absorption properties and are formed of, for example, the same material.

[0088] The first light adjustment member 61 is located between the first support member 10 and the covering member 71, and in a plan view, is located around each of the plurality of first light-emitting elements 21. The second light adjustment member 62 is located between the second support member 15 and the covering member 71, and in a plan view, is located around each of the plurality of fourth light-emitting elements 24. The third light adjustment member 63 is located between the first support member 10 and the second support member 15, in a plan view.

[0089] In this modified example, the third light adjustment member 63 is disposed between the first support member 10 and the second support member 15, and therefore, when viewed from the -Z direction side, the first light adjustment member 61 and the second light adjustment member 62 are disposed continuously via the third light adjustment member 63. This reduces the influence of the gap between the first support member 10 and the second support member 15 on the image. Other configurations, operations, and effects of this modified example are the same as those of the first embodiment.

[0090] <Second Modification of First Embodiment> Fig. 12 is a partially enlarged plan view showing a display device according to this modification. As shown in Fig. 12, in the display device 1b according to this modification, an opening 61b is provided in the first light adjustment member 61. The opening 61b includes a rectangular portion 61c and fan-shaped portions 61d arranged at the four corners of the rectangular portion 61c. This reduces inward rounding of the corners of the opening 61b, and even when the light-emitting element 20 is arranged at the corners of the opening 61b in a planar view, the corners of the light-emitting element 20 are more likely to be exposed from the first light adjustment member 61. As a result, the light extraction efficiency is improved, and the image display quality is also improved. Other configurations, operations, and effects of this modification are the same as those of the first embodiment.

[0091] <Third Modification of First Embodiment> Fig. 13 is a partially enlarged plan view showing a display device according to this modification, and Fig. 14 is a cross-sectional view taken along line XIV-XIV shown in Fig. 13.

[0092] 13 and 14 , in a display device 1c according to this modification, the first light adjustment member 61 and the light emitting element 20 overlap in a plan view. The first light adjustment member 61 is disposed between the first support member 10 and the covering member 71 in a portion that does not overlap with the light emitting element 20, and is disposed between the light emitting element 20 and the covering member 71 in a portion that overlaps with the light emitting element 20. In addition, the first light adjustment member 61 does not overlap with the via 31a of the first conductive portion 31.

[0093] This reduces the incidence of light emitted from the light emitting element 20 on the covering member 71, and therefore, for example, it is not necessary to select a light-reflecting material for the covering member 71 in order to improve light extraction efficiency. This increases the options for the covering member 71. For example, the covering member 71 may be formed from a transparent resin. Other configurations, operations, and effects of this modified example are the same as those of the first embodiment.

[0094] <Fourth Modification of First Embodiment> Fig. 15 is a cross-sectional view showing a display device according to this modification. As shown in Fig. 15, a display device 1d according to this modification does not include a first light adjustment member 61. Instead, a covering member 71 has light absorption properties and realizes the function of the first light adjustment member 61. In this modification, if there is excess space in the wiring region 14, dummy wiring having a shape similar to that of the second conductive portion 32 can be provided in this excess space to reduce brightness unevenness. Other configurations, operations, and effects of this modification are the same as those of the first embodiment.

[0095] In the display device 1d, the covering member 71 may be formed from a light-transmitting material, and the first conductive portion 31, the second conductive portion 32, etc. may be formed from a light-transmitting conductive material such as ITO. This makes it possible to impart light transmissivity to the entire display device 1d. As a result, a user of the display device 1d can view the image displayed by the display device 1d and also view what is on the other side of the display device 1d.

[0096] <Fifth Modification of First Embodiment> Fig. 16 is a partially enlarged plan view showing a display device according to this modification, and Fig. 17 is a cross-sectional view taken along line XVII-XVII shown in Fig. 16.

[0097] 16 and 17 , a display device 1e according to this modification is provided with reflective members 75 that cover each of the light-emitting elements 20. In the display device 1e, a plurality of openings 61e are provided in the first light adjustment member 61, and one light-emitting element 20 and one reflective member 75 are arranged in each opening 61e. The reflective members 75 are arranged between the light-emitting element 20 and the first light adjustment member 61, and between the light-emitting element 20 and the covering member 71. Note that the reflective members 75 may be arranged to cover the plurality of light-emitting elements 20.

[0098] The reflective member 75 is formed of a material having light reflectivity and insulating properties, such as a white resin material. In plan view, the reflective member 75 may or may not overlap the via 31 a of the first conductive portion 31.

[0099] According to this modification, the provision of the reflective member 75 improves the light extraction efficiency. Furthermore, since the incidence of light emitted from the light emitting element 20 on the covering member 71 can be reduced, for example, it is no longer necessary to impart light-reflecting properties to the material of the covering member 71 in order to improve the light extraction efficiency. This increases the options for the covering member 71. For example, the covering member 71 may be formed from a transparent resin. Other configurations, operations, and effects of this modification are the same as those of the first embodiment.

[0100] In addition, when a unit consisting of a first light-emitting element, a second light-emitting element, and a third light-emitting element is arranged within the opening of the first light adjustment member 61, multiple reflective members 75 may be arranged to cover each of the first light-emitting element, the second light-emitting element, and the third light-emitting element located within the opening, or one reflective member 75 may be arranged to cover the first light-emitting element, the second light-emitting element, and the third light-emitting element together.

[0101] Second Embodiment Fig. 18 is a cross-sectional view showing a display device according to this embodiment. As shown in Fig. 18, a display device 2 according to this embodiment includes, in addition to the configuration of the display device 1 according to the first embodiment, a wavelength conversion member 76, a color filter substrate 77, and color filters 78R, 78G, and 78B. In addition, in the display device 2, all of the light-emitting elements 20 are first light-emitting elements 21 that emit blue light.

[0102] The wavelength conversion member 76 contains a phosphor and converts the blue light emitted from the first light-emitting element 21 into green light and red light. The color filter substrate 77 is a light-transmitting substrate. The color filter 78R is a filter that transmits red light, the color filter 78G is a filter that transmits green light, and the color filter 78B is a filter that transmits blue light. In the display device 2, the first light adjustment member 61 is disposed in a position surrounding the color filters 78R, 78G, and 78B. The first light adjustment member 61 and the color filters 78R, 78G, and 78B form a color filter layer 79.

[0103] In the display device 2, a color filter substrate 77, a color filter layer 79, a wavelength conversion member 76, a first support member 10, a plurality of first light-emitting elements 21, a covering member 71, and a protective member 74 are laminated in this order from the −Z direction side to the +Z direction side. Note that the first conductive portion 31, the second conductive portion 32, the third conductive portion 33, and the fourth conductive portion 34 are not shown in FIG.

[0104] In this embodiment, a portion of the blue light emitted from the first light-emitting element 21 located on the +Z direction side of the color filter 78G is converted to green light by the wavelength conversion member 76, which then passes through the color filter 78G and the color filter substrate 77 to be emitted from the display device 2. Also, a portion of the blue light emitted from the first light-emitting element 21 located on the +Z direction side of the color filter 78R is converted to red light by the wavelength conversion member 76, which then passes through the color filter 78R and the color filter substrate 77 to be emitted from the display device 2. Furthermore, a portion of the blue light emitted from the first light-emitting element 21 located on the +Z direction side of the color filter 78B remains blue and exits the wavelength conversion member 76, passes through the color filter 78B and the color filter substrate 77, and is emitted from the display device 2. According to this embodiment, a color image can be displayed using a single type of light-emitting element. Other configurations, operations, and effects of this embodiment are similar to those of the first embodiment.

[0105] Third Embodiment Fig. 19 is a plan view showing a display device according to this embodiment, and Fig. 20 is a cross-sectional view taken along line XX-XX shown in Fig. 19.

[0106] 19 and 20 , in the display device 3 according to this embodiment, a plurality of panels 200 are also arranged in the second direction Y. In one example, the panels 200 are arranged in five columns along the first direction X and two rows along the second direction Y, and ten panels 200 are arranged in a matrix of two rows and five columns.

[0107] Furthermore, a light-transmitting member 80 is arranged on the −Z direction side of the panel 200 arranged on the +Y direction side, and on the +Y direction side of the panel 200 arranged on the −Y direction side. The lower surface of the light-transmitting member 80, i.e., the surface on the −Z direction side, is substantially flush with the lower surface of the panel 200 arranged on the −Y direction side.

[0108] In this embodiment, by arranging the panels 200 not only in the first direction X but also in the second direction Y, a display device that is large in size in the second direction Y can be realized. Furthermore, in the third direction Z, the flexible wiring 300 located in the wiring connection region of the panel 200 arranged on the +Y direction side overlaps with the image formation region of the panel 200 arranged on the −Y direction side. This allows the display device to be miniaturized in the second direction Y while enlarging the image formation region. Furthermore, by providing a translucent member 80 and arranging the underside of the translucent member 80 and the underside of the panel 200 arranged on the −Y direction side to be substantially flush with each other, the step between the panel 200 on the +Y direction side and the panel 200 on the −Y direction side is less visible, thereby maintaining good image quality. Other configurations, operations, and effects of this embodiment are similar to those of the first embodiment. In this embodiment, the panels 200 are arranged in two rows in the second direction Y, but by stacking similar structures, the panels 200 may be arranged in three or more rows in the second direction Y.

[0109] <Fourth embodiment> Fig. 21 is a plan view showing a display device according to this embodiment. Fig. 22 is a diagram showing the operation of the display device according to this embodiment. In Fig. 22, the same reference numerals are assigned to image data that are input at the same timing. Specifically, the reference numerals "A", "B", "C", ... "P" are assigned in order of earliest input timing.

[0110] 21 and 22 , in the display device 4 according to this embodiment, multiple panels 200 are connected in a daisy chain. That is, image data D1 is input only to the first control unit 51 of the first-stage panel 200. The conversion unit 51c of the first control unit 51 of the first-stage panel 200 converts the image data D1 into image data D2 and inputs it into the first-stage memory cell of the storage unit 51d. When new image data D2 is input, the storage unit 51d moves the image data D2 that was previously stored to the memory cell one stage later, and outputs the image data D2 that was stored in the memory cell of the final stage to the first control unit 51 of the second-stage panel 200.

[0111] In the first control unit 51 of the second or subsequent panel 200, when image data D2 is input from the previous panel 200, the first control unit 51 inputs the image data D2 to the first memory cell of the storage unit 51d, moves the image data D2 stored up to that point to the memory cell one stage later, and outputs the image data D2 stored in the final memory cell to the first control unit 51 of the next subsequent panel 200. In this way, the image data input to the first panel 200 is sent to the subsequent panels 200 in sequence.

[0112] Then, when the image data D2 is input to all memory cells of the storage units 51d of all panels 200, the current output units 51e of each panel 200 pass current to each light-emitting element 20 based on the image data D2 stored in the respective storage units 51d, causing each light-emitting element 20 to emit light. In this way, the display device 4 displays an image.

[0113] According to this embodiment, by daisy-chaining a plurality of panels 200, it is not necessary to store all of the image data D2 in the storage unit 51d of the first panel 200. This allows the capacity of the storage unit 51d of the first panel 200 to be the same as the storage units 51d of the other panels 200. Alternatively, it is not necessary to use an external memory 400. As a result, the cost of the display device 4 can be reduced. Other configurations, operations, and effects of this embodiment are the same as those of the first embodiment.

[0114] Fifth Embodiment Fig. 23 is a plan view showing a display device according to this embodiment. In the display device 5 according to this embodiment, all of the panels 200 are configured as high-resolution panels 200a. However, the first control unit 51 of each panel 200 displays images at a resolution required for the respective panel 200. For example, one panel 200 displays images at the high resolution inherent to panel 200a. Another panel 200 displays images at the same medium resolution as panel 200b. Yet another panel 200 displays images at the same low resolution as panel 200c. When a certain panel 200 displays images at a resolution lower than the inherent resolution of panel 200a, some of the units 29 in that panel 200 may not be used.

[0115] According to this embodiment, panels of the same specification can be used for all panels 200, making it easy to rearrange the panels 200. Other configurations, operations, and effects of this embodiment are the same as those of the first embodiment.

[0116] Sixth Embodiment This embodiment and its modifications are examples in which the display device 1 according to the first embodiment is used in a transport vehicle, for example, an automobile. Note that instead of the display device 1 according to the first embodiment, a display device according to any of the modifications of the first embodiment or any of the second to fifth embodiments may be used. Fig. 24 is a diagram showing the inside of a transport vehicle according to this embodiment. Fig. 25 is a diagram showing an image displayed by the display device according to this embodiment.

[0117] As shown in Fig. 24, a transportation vehicle 500 according to this embodiment is, for example, an automobile. The transportation vehicle 500 may be an automobile capable of automatic driving. A steering wheel 501 is provided in the driver's seat of the transportation vehicle 500. A main display 502 is provided on the passenger seat side of the steering wheel 501. Virtual control buttons 503 are displayed in the air to the sides of the steering wheel 501. A sub-display 504 is provided above the steering wheel 501. A head-up display (HUD) 506 may be displayed further above the sub-display 504, below a windshield 505.

[0118] The display device 1 is used as at least one of the sub-display 504 and the HUD 506. When the display device 1 is used as the sub-display 504, it is placed in a position where it can be directly seen by the user. The user is, for example, the driver of the traffic vehicle 500. When the display device 1 is used as the HUD 506, it is not placed in a position where it can be directly seen by the user, but is placed in a position where light emitted from the display device 1 reaches the user's eyes after being reflected by the lower part of the windshield 505. Alternatively, a light-transmitting display device as described in the fourth modification of the first embodiment is embedded in the lower part of the windshield 505 as the display device.

[0119] The main display 502 is, for example, a touch panel using a liquid crystal display device. The main display 502 displays, for example, map information provided by a navigation system, location information of the transportation vehicle 500, information about the indoor environment such as air conditioning, and information about auxiliary devices such as audio. Furthermore, when the transportation vehicle 500 is being driven autonomously, the main display 502 may display images unrelated to the transportation vehicle 500, such as an internet browser, an arbitrary work screen, or entertainment content such as a video.

[0120] As shown in Fig. 25, at least one of the sub-display 504 and the HUD 506 displays an image IM1 using the display device 1. The image IM1 is, for example, information that supports the driving of the traffic vehicle 500. The image IM1 has, for example, a high-definition area Ra, a medium-definition area Rb, and a low-definition area Rc set therein. The high-definition area Ra is displayed by the panel 200a of the display device 1. The medium-definition area Rb is displayed by the panel 200b. The low-definition area Rc is displayed by the panel 200c.

[0121] The high-resolution area Ra displays, for example, text information or a portion of a map. In the example shown in FIG. 25, information about the next intersection is displayed. The medium-resolution area Rb displays, for example, numbers. In the example shown in FIG. 25, the current speed and legal speed limit of the traffic vehicle 500 are displayed. The low-resolution area Rc displays, for example, icons and symbols. In the example shown in FIG. 25, the remaining battery level, whether or not there is an incoming email, and whether or not there is an incoming phone call are displayed.

[0122] The image IM1 may have a white background and letters, numbers, symbols, etc. displayed in black or color. However, to reduce power consumption, it is preferable to display the background in black and the letters, numbers, symbols, etc. in white or color. When displaying in color, a full-color display using all of red, green, and blue may be used, or only some of the colors may be used. For example, in the high-definition region Ra and the medium-definition region Rb, a full-color display using all of red, green, and blue may be used, and in the low-definition region Rc, only blue and green light-emitting elements may be provided, and an image may be displayed using only green and blue without the red light-emitting element. In this way, by configuring each panel 200 according to the image IM1, the cost of the display device 1 can be reduced.

[0123] According to this embodiment, power consumption can be reduced because the display device 1 is used as the sub-display 504 or the HUD 506. Furthermore, because the sub-display 504 or the HUD 506 is disposed above the steering wheel 501, the amount of change in the focal length of the eyes can be reduced when the user alternates between looking at the view ahead of the traffic vehicle 500 and the sub-display 504 or the HUD 506. This reduces the burden on the user.

[0124] If the sub-display 504 or the HUD 506 is disposed above the steering wheel 501, sunlight that has passed through the windshield 505 may be irradiated onto the display device 1, potentially causing the display device 1 to become hot. In this embodiment, LEDs are used as the light-emitting elements of the display device 1, which has higher heat resistance than display devices that use liquid crystal. Therefore, even if the sub-display 504 or the HUD 506 is disposed above the steering wheel 501, failure due to sunlight is unlikely to occur. Other configurations, operations, and effects of this embodiment are the same as those of the first embodiment.

[0125] <First Modification of the Sixth Embodiment> Fig. 26 is a diagram showing the rear of a traffic vehicle according to this modification. As shown in Fig. 26, a traffic vehicle 500a according to this modification uses a display device 1 in the lower part of a rear shield 507 and in a brake lamp 508. The rear shield 507 may be provided with a translucent display device as described in the fourth modification of the first embodiment. An image IM2 containing a message for following vehicles, such as a beginner's mark and the text "Kid's in Car," is displayed on the rear shield 507. The brake lamp 508 displays a gauge indicating the amount of brake depression.

[0126] According to this modification, the beginner mark is displayed only when the driver is a beginner, and the "Kid's in Car" character string is displayed only when there is a child in the vehicle. This makes display easier than attaching and detaching a sticker. Note that the content of the image IM2 displayed on the rear shield 507 is not limited to the above example. For example, when the transportation vehicle 500a is being driven autonomously, an advertisement may be displayed on the entire surface of the rear shield 507.

[0127] Furthermore, according to this modification, by using a gauge display for the brake lamp 508, the driver of the following vehicle can be informed of the amount of brake application. This allows the driver of the following vehicle to determine the degree of deceleration of the traffic moving object 500a, thereby improving safety. The configuration, operation, and effects of this modification other than those described above are the same as those of the sixth embodiment.

[0128] <Second Modification of Sixth Embodiment> Fig. 27 is a diagram showing the front of a traffic vehicle according to this modification, and Fig. 28 is a cross-sectional view showing the windshield of the traffic vehicle according to this modification.

[0129] As shown in Fig. 27, when the traffic vehicle 500b according to this modification is operating autonomously, an image IM3 indicating that the traffic vehicle 500b is operating autonomously is displayed on the windshield 505. For example, the word "Auto" is displayed with turquoise blue as the text or background color. This alerts people around the traffic vehicle 500b.

[0130] As shown in FIG. 28 , a base material 510 is provided in the front shield 505 of a traffic vehicle 500b. An exterior display device 1g is provided on the exterior side of the traffic vehicle 500b, as viewed from the base material 510, and a cover layer 511 is provided on the exterior side of the display device 1g. An interior display device 1h is provided on the interior side of the traffic vehicle 500b, as viewed from the base material 510, and a cover layer 512 is provided on the interior side of the display device 1h. The base material 510 is a plate material that can be switched between a transparent state and an opaque state, and is formed, for example, from an electrochromic material. It is preferable to use a light-transmitting display device as described in the fourth modification of the first embodiment for the display devices 1g and 1h. The cover layers 511 and 512 are made of a light-transmitting material, for example, a glass plate.

[0131] As a result, when the transportation vehicle 500b is manually driven, the base material 510 is made transparent and the display devices 1g and 1h are turned off. Alternatively, the image IM1 shown in FIG. 25 may be displayed at the bottom of the in-vehicle display device 1h.

[0132] On the other hand, when the transportation vehicle 500b is operated automatically, the base material 510 is made opaque, and the exterior display device 1g displays the image IM3. When there are passengers inside the transportation vehicle 500b, the interior display device 1h may display an image desired by the passengers, such as an internet browser, a work screen, or entertainment content such as a video.

[0133] According to this modification, various images can be individually displayed to people around the traffic vehicle 500b and passengers inside the vehicle by providing display devices inside and outside the windshield 505. The configuration, operation, and effects of this modification other than those described above are the same as those of the sixth embodiment.

[0134] The above-described embodiments and their modifications are examples of realizing the present invention, and the present invention is not limited to these embodiments and modifications. For example, the present invention also includes the addition, deletion, or modification of some components or steps in the above-described embodiments and modifications. Furthermore, the above-described embodiments and modifications can be implemented in combination with each other.

[0135] The present invention includes the following aspects.

[0136] (Supplementary Note 1) A light-transmitting device comprising: a first support member having translucency; a plurality of first light-emitting elements arranged on the first support member along a first direction, each first light-emitting element having a light extraction surface facing the first support member, an electrode formation surface located on the opposite side of the light extraction surface, a first electrode arranged on the electrode formation surface, and a second electrode arranged on the electrode formation surface; a plurality of first conductive parts extending on the first support member in a second direction perpendicular to the first direction and electrically connected to the plurality of first electrodes, a plurality of second conductive parts extending on the first support member in the second direction and electrically connected to the plurality of second electrodes, and a first control part arranged apart in the second direction from the plurality of first light-emitting elements, wherein the plurality of second conductive parts are arranged between a first outer edge in the first direction of one first end light-emitting element located at one end in the first direction among the plurality of first light-emitting elements, and a second outer edge in the first direction of the other first end light-emitting element located at the other end in the first direction among the plurality of first light-emitting elements, A display device in which the first control unit is electrically connected to at least one first light-emitting element among the plurality of first light-emitting elements via at least one first conductive portion among the plurality of first conductive portions and at least one second conductive portion among the plurality of second conductive portions.

[0137] (Appendix 2) A display device as described in Appendix 1, wherein the plurality of second conductive portions are arranged between a third outer edge in the first direction of one of the plurality of first conductive portions that is located at one end in the first direction, and a fourth outer edge in the first direction of the other of the plurality of first conductive portions that is located at the other end in the first direction.

[0138] (Appendix 3) A display device according to Appendix 1 or 2, in which, in a planar view, one of the plurality of first light-emitting elements is arranged overlapping one of the plurality of first conductive sections, and the one first light-emitting element is electrically connected to the one first conductive section.

[0139] (Supplementary Note 4) The display device described in any one of Supplementary Notes 1 to 3, in an image forming area in which the plurality of first light-emitting elements are arranged, the shortest distance between a first center in the first direction of one of the first end light-emitting elements and a third outer edge in the first direction on the outside of one of the first end conductive portions located at one end in the first direction among the plurality of first conductive portions is shorter than the shortest distance between the first center and a first inner edge in the first direction on the inside of the one of the first end conductive portions, and the shortest distance between a second center in the first direction of the other of the first end light-emitting elements and a fourth outer edge in the first direction on the outside of the other of the first end conductive portions located at the other end in the first direction among the plurality of first conductive portions is shorter than the shortest distance between the second center and a second inner edge in the first direction on the inside of the other of the first end conductive portions.

[0140] (Appendix 5) A display device according to any one of Appendices 1 to 4, further comprising a plurality of third conductive portions that respectively connect the plurality of first electrodes to the plurality of first conductive portions, and the plurality of third conductive portions are arranged between the first outer edge and the second outer edge.

[0141] (Appendix 6) A display device described in any one of Appendices 1 to 5, further comprising a third conductive portion connecting one of the plurality of first electrodes and one of the plurality of first conductive portions, wherein the maximum distance from an outer fifth outer edge of the third conductive portion in the second direction to the first control portion is shorter than the maximum distance from an outermost sixth outer edge in the second direction of the first light-emitting element connected to the third conductive portion to the first control portion.

[0142] (Appendix 7) A display device according to any one of Appendices 1 to 6, further comprising a plurality of fourth conductive portions that respectively connect the plurality of second electrodes to the plurality of second conductive portions, and the plurality of fourth conductive portions are arranged between the first outer edge and the second outer edge.

[0143] (Appendix 8) A display device according to any one of Appendices 1 to 7, further comprising a fourth conductive portion comprising one of the plurality of second electrodes and one of the plurality of second conductive portions, wherein the maximum distance from an outer seventh outer edge of the fourth conductive portion in the second direction to the first control portion is shorter than the maximum distance from an outermost sixth outer edge of the first light-emitting element in the second direction to the first control portion.

[0144] (Appendix 9) A display device as described in Appendix 7, further comprising an insulating covering member having a first surface arranged opposite the first surface and a second surface located opposite the first surface, and having a linear expansion coefficient greater than that of the first support member, wherein the fourth conductive portion is arranged on the first surface side and extends in the first direction, and the second conductive portion is arranged on the second surface side and extends in the second direction, and in a planar view, at a portion where the fourth conductive portion and the second conductive portion overlap, the minimum length of the fourth conductive portion in the second direction is shorter than the minimum length of the second conductive portion in the first direction.

[0145] (Supplementary Note 10) The display device described in any one of Supplementary Notes 1 to 9, further comprising: a plurality of second light-emitting elements arranged on the first support member along the first direction; and a plurality of third light-emitting elements arranged on the first support member along the first direction, wherein the plurality of second light-emitting elements are arranged at a distance in the second direction from the plurality of first light-emitting elements, and the plurality of third light-emitting elements are arranged at a distance in the second direction from the plurality of second light-emitting elements, each of the plurality of first light-emitting elements including a blue light-emitting element having a peak wavelength of 430 nm or more and 480 nm or less, each of the plurality of second light-emitting elements including a green light-emitting element having a peak wavelength of 500 nm or more and 580 nm or less, and each of the plurality of third light-emitting elements including a red light-emitting element having a peak wavelength of 600 nm or more and 780 nm or less.

[0146] (Appendix 11) A display device described in any one of Appendices 1 to 10, further comprising: a second support member that is translucent and arranged adjacent to the first support member along the first direction; a plurality of fourth light-emitting elements that are arranged on the second support member along the first direction; and a second control unit that is arranged away from the plurality of fourth light-emitting elements in the second direction and is electrically connected to at least some of the plurality of fourth light-emitting elements.

[0147] (Appendix 12) The display device described in Appendix 11 further comprises, in a planar view, a first light adjustment member located around each of the plurality of first light-emitting elements and having light absorption properties; a second light adjustment member located around each of the plurality of fourth light-emitting elements and having light absorption properties; and a third light adjustment member located between the first support member and the second support member and having light absorption properties.

[0148] The present invention can be used, for example, in a display device for a transportation vehicle.

[0149] 1, 1a, 1b, 1c, 1d, 1e, 1g, 1h, 2, 3, 4, 5 Display device 10 First support member 11 Image forming area 12 Wiring connection area 13 Element area 14 Wiring area 20 Light emitting element 21 First light emitting element 21a Light extraction surface 21b Electrode forming surface 21c Side surface 21d Semiconductor portion 21e First electrode 21f Second electrode 21g First end light emitting element 21h First outer edge 21j First end light emitting element 21k Second outer edge 21o First center 21p Second center 21q Sixth outer edge 22 Second light emitting element 23 Third light emitting element 29 Unit 31 First conductive portion 31a Via 31g First end conductive portion 31h Third outer edge 31j First end conductive portion 31k Fourth outer edge 31q First inner edge 31r Second inner edge 32 Second conductive portion 33 Third conductive portion 33h Fifth outer edge 34 Fourth conductive portion 34q Seventh outer edge 35 Fifth conductive portion 51 First control portion 51c Conversion portion 51d Memory portion 51e Current output portion 61 First light adjustment member 61a, 61b Opening 61c Rectangular portion 61d Sector-shaped portion 61e Opening 62 Second light adjustment member 63 Third light adjustment member 71 Covering member 71a First surface 71b Second surface 72 Anisotropic connecting member 73 Connecting member 74 Protective member 75 Reflecting member 76 Wavelength conversion member 77 Color filter substrate 78B, 78G, 78R Color filters 79 Color filter layer 80 Light-transmitting member 100 Mounting substrate 200, 200a, 200b, 200c Panel 300 Flexible wiring 301 Insulating base 302 Wiring 400 External memory 500, 500a, 500b Traffic vehicle 501 Steering 502 Main display 503 Control button 504 Sub-display 505 Front shield 507 Rear shield 508 Brake lamp 510 Base material 511, 512 Cover layer D1, D2 Image data IM1, IM2, IM3 Image L1L2: Shortest distance between the first center 21o and the third outer edge 31h L3: Shortest distance between the first center 21o and the first inner edge 31q L4: Shortest distance between the second center 21p and the fourth outer edge 31k L5: Maximum distance from the fifth outer edge 33h to the first control unit 51 L6: Maximum distance from the sixth outer edge 21q to the first control unit 51 L7: Maximum distance from the seventh outer edge 34q to the first control unit 51 Ra: High-resolution region Rb: Medium-resolution region Rc: Low-resolution region X: First direction Y: Second direction Z: Third direction

Claims

1. A light-transmitting first support member; a plurality of first light-emitting elements arranged on the first support member along a first direction, each having a light extraction surface facing the first support member, an electrode formation surface located on the opposite side of the light extraction surface, a first electrode arranged on the electrode formation surface, and a second electrode arranged on the electrode formation surface; a plurality of first conductive parts extending on the first support member in a second direction perpendicular to the first direction and electrically connected to the plurality of first electrodes respectively; a plurality of second conductive parts extending on the first support member in the second direction and electrically connected to the plurality of second electrodes respectively; and a first control part arranged apart in the second direction from the plurality of first light-emitting elements, wherein the plurality of second conductive parts are arranged between a first outer edge in the first direction of one of the plurality of first light-emitting elements located at one end in the first direction, and a second outer edge in the first direction of the other of the plurality of first light-emitting elements located at the other end in the first direction, A display device in which the first control unit is electrically connected to at least one first light-emitting element among the plurality of first light-emitting elements via at least one first conductive portion among the plurality of first conductive portions and at least one second conductive portion among the plurality of second conductive portions.

2. A display device as described in claim 1, wherein the plurality of second conductive portions are arranged between a third outer edge in the first direction of one of the plurality of first conductive portions that is located at one end in the first direction, and a fourth outer edge in the first direction of the other of the plurality of first conductive portions that is located at the other end in the first direction.

3. A display device as described in claim 1, wherein, in a plan view, one of the plurality of first light-emitting elements is arranged overlapping one of the plurality of first conductive sections, and the one first light-emitting element is electrically connected to the one first conductive section.

4. A display device as described in claim 1, wherein in an image forming area in which the plurality of first light-emitting elements are arranged, the shortest distance between a first center in the first direction of one of the first end light-emitting elements and a third outer edge in the first direction on the outside of one of the plurality of first conductive portions that is located at one end in the first direction is shorter than the shortest distance between the first center and a first inner edge in the first direction on the inside of the one of the first end conductive portions, and the shortest distance between a second center in the first direction of the other of the first end light-emitting elements and a fourth outer edge in the first direction on the outside of the other of the plurality of first conductive portions that is located at the other end in the first direction is shorter than the shortest distance between the second center and a second inner edge in the first direction on the inside of the other of the first end conductive portions.

5. A display device according to claim 1, further comprising a plurality of third conductive portions that respectively connect a plurality of the first electrodes to the plurality of first conductive portions, the plurality of third conductive portions being arranged between the first outer edge and the second outer edge.

6. A display device as described in claim 1, further comprising a third conductive portion connecting one of the plurality of first electrodes and one of the plurality of first conductive portions, wherein the maximum distance from the outer fifth outer edge of the third conductive portion in the second direction to the first control portion is shorter than the maximum distance from the outermost sixth outer edge in the second direction of the first light-emitting element connected to the third conductive portion to the first control portion.

7. A display device according to claim 1, further comprising a plurality of fourth conductive portions that respectively connect a plurality of the second electrodes to the plurality of second conductive portions, the plurality of fourth conductive portions being arranged between the first outer edge and the second outer edge.

8. A display device as described in claim 1, further comprising a fourth conductive portion that is one of the plurality of second electrodes and one of the plurality of second conductive portions, wherein the maximum distance from the outer seventh outer edge of the fourth conductive portion in the second direction to the first control portion is shorter than the maximum distance from the outermost sixth outer edge of the first light-emitting element in the second direction to the first control portion.

9. A display device as described in claim 7, further comprising an insulating covering member having a first surface arranged opposite to the first support member and a second surface located on the opposite side of the first surface, and having a linear expansion coefficient greater than that of the first support member, wherein the fourth conductive portion is arranged on the first surface side and extends in the first direction, and the second conductive portion is arranged on the second surface side and extends in the second direction, and in a planar view, at a portion where the fourth conductive portion and the second conductive portion overlap, the minimum length of the fourth conductive portion in the second direction is shorter than the minimum length of the second conductive portion in the first direction.

10. The display device of claim 1, further comprising: a plurality of second light-emitting elements arranged on the first support member along the first direction; and a plurality of third light-emitting elements arranged on the first support member along the first direction, wherein the plurality of second light-emitting elements are arranged at a distance in the second direction from the plurality of first light-emitting elements, and the plurality of third light-emitting elements are arranged at a distance in the second direction from the plurality of second light-emitting elements, each of the plurality of first light-emitting elements including a blue light-emitting element having a peak wavelength of 430 nm or more and 480 nm or less, each of the plurality of second light-emitting elements including a green light-emitting element having a peak wavelength of 500 nm or more and 580 nm or less, and each of the plurality of third light-emitting elements including a red light-emitting element having a peak wavelength of 600 nm or more and 780 nm or less.

11. A display device as described in claim 1, further comprising: a second support member that is translucent and arranged adjacent to the first support member along the first direction; a plurality of fourth light-emitting elements that are arranged on the second support member along the first direction; and a second control unit that is arranged away from the plurality of fourth light-emitting elements in the second direction and is electrically connected to at least some of the plurality of fourth light-emitting elements.

12. A display device as described in claim 11, further comprising, in a plan view: a first light adjustment member located around each of the plurality of first light-emitting elements and having light absorption properties; a second light adjustment member located around each of the plurality of fourth light-emitting elements and having light absorption properties; and a third light adjustment member located between the first support member and the second support member and having light absorption properties.

Images