JP2017184576A - Solar battery composite display body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a solar battery composite display body in which a degree of freedom in an adjustment of an incident direction and a display direction of a photovoltaic power used for an electric power generation.SOLUTION: A solar battery composite display body 10 includes: a sheet-like main body part 40 including a pair of faced surfaces 40a and 40b; a plurality of unit elements 30 provided on one surface of the main body part; a plurality of display elements 11 arranged so that each element covers a part of corresponded unit elements; and a solar battery panel 50 arranged so as to be opposite to the main body part. The plurality of unit elements 30 is arranged in both directions of a first direction d1 and a second direction d2 which is not parallel with the first direction. Each unit element forms a convex part or a concave part.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a solar cell composite-type display body that includes a display surface for performing display and can also perform power generation using a solar cell panel.

  As an example of such a solar cell composite display, Patent Document 1 proposes an apparatus in which a solar panel, a film in which an image portion and a transparent portion are alternately formed, and a linear array lens are stacked. Yes. In this apparatus, due to refraction by the linear array lens, light from above passes through the transparent part of the film and enters the solar panel. On the other hand, light from below travels toward the display portion of the film by refraction at the linear array lens. Therefore, the display on the display unit is observed from below.

Special table 2009-524794

  However, the position of the sun changes during the day. Therefore, the apparatus disclosed in Patent Document 1 cannot generate power with high efficiency throughout the day and cannot adjust the power generation amount. Moreover, depending on the installation position of the apparatus, it may be preferable to observe the display unit from a direction other than the lower side. That is, in the apparatus disclosed in Patent Document 1, the display direction by the display unit cannot be adjusted.

  The present invention has been made in consideration of the above points, and aims to improve the degree of freedom in adjusting the incident direction and display direction of sunlight used for power generation in a solar cell composite display body. To do.

The first solar cell composite display according to the present invention is:
A sheet-like main body having a pair of opposing surfaces;
A plurality of unit elements arranged on one surface of the main body part in both the first direction and the second direction non-parallel to the first direction, each forming a convex part or a concave part;
A plurality of display elements each arranged so as to cover a part of the corresponding unit element;
A solar cell panel disposed to face the main body.

Each unit element forms a columnar convex portion or concave portion,
The plurality of unit elements are arranged in the first direction such that the axial direction of the columnar shape is along the first direction, and are spaced apart in the second direction or adjacent to the second direction. May be arranged.

  The plurality of unit elements may be arranged in a lattice, particularly a square lattice.

  The plurality of unit elements may be arranged in a staggered manner.

  Each unit element may form a convex portion or a concave portion having a cone shape or a shape obtained by removing a part including a vertex from the cone.

  Each unit element may form a convex portion or a concave portion having a conical shape or a shape obtained by removing a part including a vertex from a conical shape.

  Each unit element may form a convex portion or a concave portion that has a pyramid shape or a shape obtained by removing a part including a vertex from a pyramid.

  Each unit element may form a convex portion or a concave portion having a triangular pyramid shape or a shape obtained by removing a part including a vertex from the triangular pyramid.

  Each unit element may form a convex portion or a concave portion that has a quadrangular pyramid shape or a shape obtained by removing a part including the apex from the quadrangular pyramid.

  Each unit element may form a convex portion or a concave portion having a hexagonal pyramid shape or a shape obtained by removing a part including a vertex from the hexagonal pyramid.

  Each unit element may form a convex part or a concave part that forms a part of a sphere.

  Each unit element may form a convex portion or a concave portion having a shape that forms a cube, a part of a cube, a rectangular parallelepiped, or a part of a rectangular parallelepiped.

  The plurality of unit elements may be arranged adjacent to each other.

  The plurality of unit elements may be arranged without a gap on one surface of the main body.

Each unit element forms a convex lens or a concave lens,
In a cross section parallel to both the first direction and the normal direction of the main body, a region located on one side in the first direction from the top of the lens surface of the lens surface of the unit element is a one-side region. When the region located on the other side in the first direction from the top is the other region, each display element covers at least a part of the one side region of the lens surface of the corresponding unit element. Also good.

  Each display element may be arranged so as to be shifted from the other side region of the lens surface of the corresponding unit element.

  In a cross section parallel to both the normal direction and the first direction of the main body, the solar cell panel is more distant from the unit element than the focal point at which the parallel light flux incident along the optical axis of the unit element converges. You may arrange | position in the position spaced apart.

The second solar cell composite display according to the present invention is:
A sheet-like main body having a pair of opposing surfaces;
A plurality of unit elements that are provided on one surface of the main body part, each of which forms a convex part or a concave part, each having a cone shape or a shape obtained by removing a part including a vertex from a cone;
A plurality of display elements each arranged so as to cover a part of the corresponding unit element;
A solar cell panel disposed to face the main body.

The third solar cell composite display according to the present invention is:
A sheet-like main body having a pair of opposing surfaces;
A plurality of unit elements that are irregularly two-dimensionally arranged on one surface of the main body part, each forming a convex part or a concave part,
A plurality of display elements each arranged so as to cover a part of the corresponding unit element;
A solar cell panel disposed to face the main body.

  ADVANTAGE OF THE INVENTION According to this invention, the solar cell composite display body can improve the freedom degree of adjustment of the incident direction and display direction of sunlight utilized for electric power generation.

FIG. 1 is a perspective view showing a solar cell composite display body for explaining an embodiment of the present invention. FIG. 2 is a cross-sectional view taken along the line II-II in FIG. FIG. 3 is a cross-sectional view taken along line III-III in FIG. FIG. 4 is a diagram illustrating an example of a display target displayed on the solar cell composite display. FIG. 5 is a diagram corresponding to FIG. 2 for explaining a modification of the light control sheet. FIG. 6 is a diagram corresponding to FIG. 2, for explaining another modification of the light control sheet. FIG. 7 is a diagram corresponding to FIG. 2 and is a diagram for explaining still another modification of the light control sheet. FIG. 8 is a partial perspective view showing the optical element portion, and is a view for explaining still another modified example of the light control sheet. FIG. 9 is a plan view showing the light control sheet, and is a view for explaining still another modification of the light control sheet. It is a top view for demonstrating the further another modification of a light control sheet. FIG. 10 is a partial perspective view showing the optical element portion, and is a view for explaining still another modified example of the light control sheet. FIG. 11 is a partial perspective view showing the optical element portion, and is a view for explaining still another modification of the light control sheet. FIG. 12 is a plan view showing the arrangement of unit elements, and is a diagram for explaining still another modification of the light control sheet. FIG. 13 is a partial perspective view showing the optical element portion, and is a view for explaining still another modified example of the light control sheet. FIG. 14 is a partial perspective view showing the optical element portion, and is a view for explaining still another modified example of the light control sheet. FIG. 15 is a partial perspective view showing the optical element portion, and is a view for explaining still another modified example of the light control sheet. FIG. 16 is a partial perspective view showing the optical element portion, and is a view for explaining still another modification of the light control sheet. FIG. 17 is a partial perspective view showing the optical element portion, and is a view for explaining still another modified example of the light control sheet. FIG. 18 is a partial perspective view showing the optical element portion, and is a view for explaining still another modification of the light control sheet. FIG. 19 is a plan view showing the light control sheet, and is a view for explaining still another modification of the light control sheet. FIG. 20 is a perspective view showing the light control sheet together with the solar cell panel, and is a view for explaining still another modification of the light control sheet. FIG. 21 is a perspective view showing the light control sheet together with the solar cell panel, and is a view for explaining still another modified example of the light control sheet. FIG. 22 is a perspective view showing the light control sheet together with the solar cell panel, and is a view for explaining still another modification of the light control sheet. FIG. 23 is a perspective view showing the light control sheet together with the solar cell panel, and is a view for explaining still another modification of the light control sheet. FIG. 24 is a perspective view showing the light control sheet together with the solar cell panel, and is a view for explaining still another modification of the light control sheet. FIG. 25 is a plan view showing the light control sheet, and is a view for explaining still another modification of the light control sheet.

  Hereinafter, embodiments will be described with reference to the drawings. In the drawings attached to the present specification, for the sake of illustration and ease of understanding, the scale, the vertical / horizontal dimension ratio, and the like are appropriately changed and exaggerated from those of the actual product. In addition, as used in this specification, the shape and geometric conditions and the degree thereof are specified, for example, terms such as “parallel”, “orthogonal”, “identical”, length and angle values, etc. are strictly Without being bound by meaning, it should be interpreted including the extent to which similar functions can be expected.

  FIGS. 1-25 is a figure for demonstrating one Embodiment and its modification. Among these, FIG. 1 is a perspective view showing the configuration of the solar cell composite display body 10, and FIGS. 2 and 3 are vertical and horizontal cross-sectional views of the solar cell composite display body 10, respectively. FIG. 4 is a diagram illustrating a display target observed when the solar cell composite display 10 is observed from below. On the other hand, FIGS. 5-25 is a figure for demonstrating a modification.

  The solar cell composite display 10 described here exhibits both a predetermined display function and a power generation function using external light. The solar cell composite display 10 shown in FIG. 1 has a plurality of unit elements 30 that are two-dimensionally arranged, that is, arranged in a planar manner. The display element 11 is arranged on a part of the element surface 31 of each unit element 30. As shown in FIG. 2, when the solar cell composite display 10 is observed from the directions D21 and D22 within a certain angle range AR1, the display element 11 is arranged so as to mainly cover a part of the element surface 31 of the unit element 30. Is observed. Therefore, the display element 11 mainly exhibits a display function for an observer who observes the solar cell composite display body 10 from a certain angle range AR1. On the other hand, light L21 and L22 incident from a direction within another certain angular range AR2 is mainly transmitted through the element surface 31 of the unit element 30 and guided to the solar cell panel 50. Therefore, the solar cell panel 50 mainly exhibits a power generation function with respect to light incident on the solar cell composite display body 10 from another certain angular range AR2. As described above, according to the solar cell composite display body 10, the solar cell is used when the observer observes the display element 11 using the difference between the observation direction from the observer and the incident direction of the external light. The panel 50 is suppressed from being visually recognized, and it is possible to generate power with the solar panel 50 while maintaining harmony with the surroundings.

  Hereinafter, the configuration and operational effects of the solar cell composite display 10 according to the present embodiment will be described in detail. As well shown in FIGS. 1 and 2, the solar cell composite display 10 includes a light control sheet 20 and a solar cell panel 50 disposed on the back surface of the light control sheet 20. . The light control sheet 20 forms the surface 10 a of the solar cell composite display 10. The surface 10a forms an incident surface on which external light such as sunlight incident on the solar cell composite display body 10 is incident. In the illustrated example, the display element 11 for visualizing the display target 13 (see FIG. 4) is provided on the surface 10a.

  The light control sheet 20 includes a sheet-like main body portion 40 and an optical element portion 25 stacked on the main body portion 40. Among these, the main-body part 40 has the 1st surface 40a and the 2nd surface 40b as a pair of main surface which mutually opposes. The first surface 40 a forms a surface adjacent to the optical shape portion 25. The second surface 40 b faces the light incident surface 50 a of the solar cell panel 50.

  The optical element portion 25 has a first surface 25a and a second surface 25b as a pair of main surfaces facing each other. The first surface 25 a of the optical element portion 25 forms the surface 10 a of the solar cell composite display body 10. The second surface 25 b of the optical element portion 25 is disposed to face the first surface 40 a of the main body portion 40. The main body portion 40 and the optical element portion 25 are made of a material having excellent light transmittance so that light incident on the solar cell composite display 10 can be efficiently transmitted, and resin or glass can be used. In this embodiment, an acrylic resin is used as a main component. The first surface 40a of the main body portion 40 and the second surface 25b of the optical element portion 25 may be integrally formed as shown in FIGS. 2 and 3, but a partial gap or other It may be joined via a layer.

  In the present specification, terms such as “sheet”, “film”, and “plate” are not distinguished from each other only based on the difference in names. Therefore, for example, a “sheet” is a concept including a member that can also be called a film or a plate. As a specific example, the “light control sheet” includes members called “light control film”, “light control plate”, and the like.

  Further, in this specification, the “sheet surface (film surface, plate surface, panel surface)” is the plane of the target sheet-like member when the target sheet-like member is viewed as a whole and globally. A surface that matches the direction. In the embodiment described below, the panel surface of the solar cell composite display 10, the sheet surface of the light control sheet 20 described later, the sheet surface of the main body 40, and the panel surface of the solar cell panel 50 are mutually connected. It is parallel. Furthermore, in this specification, the “normal direction” used for a sheet-like (film-like, plate-like, panel-like) member refers to a normal direction to the sheet surface of the member.

  The optical element portion 25 disposed on the first surface 40a of the main body portion 40 includes a large number of unit elements 30 that are two-dimensionally arranged. The unit element 30 here is a part that forms a convex part or a concave part. In the illustrated example, the unit element 30 is a single element having a certain shape that appears repeatedly in the optical element section 25 as its outline. The unit element 30 forms a convex portion having a cone shape. However, the unit element 30 is not limited to the illustrated example of the prism-shaped unit prism, and may be a unit lens having a lens surface as another example. Further, the unit element 30 forms an element surface 31 on the surface facing the opposite side to the main body portion 40 (the first surface 25a of the optical element portion 25), that is, on the surface opposite to the solar cell panel 50. The element surface 31 is a non-planar surface defined by the surface of the unit element 30, and typically includes a plurality of planes, one or more curved surfaces, or a combination of these surfaces. In the illustrated example, the element surface 31 has a plurality of planes corresponding to the unit element 30 having a cone shape.

  More specifically, in the illustrated solar cell composite display body 10, the unit element 30 is formed of a unit prism having a pyramid shape, particularly a quadrangular pyramid shape. In addition, the quadrangular pyramid formed by the unit elements 30 is a pyramid and further a regular quadrangular pyramid. Accordingly, the unit element 30 includes four surfaces 32a, 32b, 32c, and 32d having a triangular shape, particularly an isosceles triangular shape. The unit element 30 is provided on the main body 40 such that the rectangular bottom surface is positioned on the first surface 40 a of the main body 40. A perpendicular line to the bottom surface passing through the apex of the unit element 30 is along the normal direction of the main body 40. However, the present invention is not limited to this example, and the perpendicular to the bottom surface passing through the apex of the unit element 30 may be inclined with respect to the normal direction nd of the main body 40.

  In the illustrated example, the plurality of unit elements 30 are arranged in both the first direction d1 and the second direction d2 on the first surface 40a of the main body 40. Both the first direction d1 and the second direction d2 are along the sheet surface of the main body 40. That is, the first direction d1 and the second direction d2 are both orthogonal to the direction normal nd of the main body 40. Also, the first direction d1 and the second direction d2 are non-parallel, and in particular are orthogonal in the illustrated example. Therefore, the plurality of unit elements 30 are arranged in a lattice shape, particularly a square lattice shape. In the illustrated example, the solar cell composite display 10 is held so that the first direction d1 is along the vertical direction and the second direction d2 is along the horizontal direction.

  FIG. 2 is a cross-sectional view parallel to both the first axial direction d1 and the normal direction of the solar cell panel 50, that is, the normal direction nd of the main body 40. On the other hand, FIG. 3 shows a cross-section parallel to both the second direction d2 and the normal direction of the solar cell panel 50, that is, the normal direction nd of the main body 40. As shown in FIG. 2, in the element surface 31 of each unit element 30, the first surface 32a is located on the first side 1s in the first direction d1, and the second surface 32b is the second surface in the first direction d1. Is located on the side 2s. In the illustrated arrangement, the first side 1s in the first direction d1 is the upper side in the vertical direction, and the second side 2s in the first direction d1 is the lower side in the vertical direction. As shown in FIG. 3, the third surface 32c is located on the third side 3s in the second direction d2, and the fourth surface 32d is located on the fourth side 4s in the second direction d2. . In the illustrated arrangement, the third side 3s in the second direction d2 is the west side in the horizontal direction, and the fourth side 4s in the second direction d2 is the east side in the horizontal direction.

  As shown in FIGS. 1 and 2, the display element 11 is provided so as to cover a part of the element surface 31 of each unit element 30. Therefore, the plurality of display elements 11 are arranged along both the first axial direction d1 and the second direction d2, which are the arrangement directions of the unit elements 30, corresponding to the unit elements 30. In the illustrated example, the display element 11 covers the second surface 32 b of the element surfaces 31 of the corresponding unit elements 30. In particular, in the illustrated example, the display element 11 covers the entire area of the second surface 32b without a gap. On the other hand, the display elements 11 are arranged so as to be shifted from the first surface 32a, the third surface 32c, and the fourth surface 32d of the corresponding unit element 30. That is, the display element 11 exposes the first surface 32a, the third surface 32c, and the fourth surface 32d without covering the first surface 32a, the third surface 32c, and the fourth surface 32d. The display element 11 is held on the unit element 30 so as to face the lower side in the vertical direction.

  As described above, the solar cell composite display 10 is intended to be observed from the surface 10a side, and each display element 11 has a display surface 12 for displaying. As can be understood from FIG. 2, the display surface 12 is easily visually recognized when observed from the directions D21 and D22 inclined to the second side 2s (lower side) with respect to the normal direction nd. Therefore, the display function from the display surface 12 is effectively exhibited when observed from the direction D21 inclined to the second side 2s with respect to the normal direction nd.

  In the illustrated example, the display target 13 is displayed by a combination of a plurality of display surfaces 12. Examples of the display target 13 include patterns (images) such as figures, patterns, designs, colors, pictures, photographs, and characters, and information such as letters, marks, and numbers. The display target 13 may be stationary or moving. In particular, when displaying the moving display object 13 on the display surface 12, it is easy to use electricity generated from the solar cell panel 50 for driving.

  FIG. 4 shows an example of the display target 13 given to the display surface 12. The plurality of display surfaces 12 are arranged in the first direction d1 and also in the second direction d2, corresponding to the plurality of unit elements 30. Therefore, the display surface 12 located at each position in the first direction d1 and the second direction d2 is separately painted and functions as a pixel, so that the two-dimensional display object 13 can be displayed. .

  In FIG. 4, the character “N” as the display target 13 is displayed in a discontinuous manner and is not displayed as a combination of continuously connected pixels. However, it should be noted that the interval between the display elements 11 is set to be sufficiently small, and can be visually recognized as a pixel in which the characters “N” as the display target 13 are continuously connected. .

  Now, referring back to FIGS. 2 and 3, the first surface 32 a, the third surface 32 c, and the fourth surface 32 d of the element surfaces 31 of the unit element 30 are not covered with the display element 11. For this reason, the light L21, L22, L31, L32, L33, and L34 incident on the first surface 32a, the third surface 32c, and the fourth surface 32d are transmitted through the surfaces 32a, 32c, and 32d while being refracted. It goes toward the solar cell panel 50. That is, the surfaces 32 a, 32 c, and 32 d of the element surface 31 that are not covered with the display element 11 function as a light transmission region that guides incident light to the light incident surface 50 a of the solar cell panel 50.

  Lights L21, L22, L31, L32, L33, and L34 received by the light incident surface 50a of the solar cell panel 50 are used for power generation by the solar cell elements included in the solar cell panel 50. In the illustrated example, the solar cell panel 50 is disposed so as to face the light control sheet 20 and be separated from the light control sheet 20.

  As shown in FIGS. 2 and 3, the solar cell panel 50 extends in a planar shape so as to face the plurality of unit elements 30 arranged in the first direction d1 and the second direction d2. In the illustrated example, the solar cell panel 50 extends in parallel with the sheet surface of the main body 40, in other words, the panel surface of the solar cell composite display body 10. Accordingly, in the illustrated example, the solar cell panel 50 extends in parallel with the first direction d1 and the second direction d2 that are the arrangement directions of the unit elements 30. Various known members can be used as the solar cell panel 50 and are not particularly limited.

  The solar cell composite display 10 having the above configuration can be manufactured by the following method as an example. First, the main body 40 and the unit element 30 are produced by molding a transparent resin. For the molding, hot-melt extrusion processing, injection molding, or the like can be employed. Next, the display element 11 is formed on a part of the element surface 31 of the unit element 30. As an example, the display element 11 can be disposed on the element surface 31 by inkjet printing. Thereafter, the solar cell panel 50 is installed so as to face the unit element 30. Thereby, the solar cell composite display 10 is obtained.

  The solar cell composite display 10 thus obtained can be used for various purposes. For example, the solar cell composite display 10 has a size of several meters to several tens of meters used for outdoor signboards, road information bulletin boards, outer wall surfaces of buildings, and the like. Large panel use, medium size panel use of several tens of centimeters to several meters used for posters, signs, inner walls of buildings, etc., and small panel use of several centimeters to several tens of centimeters used for table lamps, portable terminals Etc. can be illustrated.

  Next, the operation of the solar cell composite display 10 will be described mainly with reference to FIGS. 2 and 3. The solar cell composite display 10 is arranged, for example, such that the first direction d1 that is the arrangement direction of the unit elements 30 is along the vertical direction and the second direction d2 is along the horizontal direction. At this time, the solar cell composite display body is such that the first side 1s in the first direction d1 is located on the upper side in the vertical direction, and the second side 2s in the second direction d2 is located on the lower side in the vertical direction. 10 is installed.

  First, as well shown in FIG. 2, the display surface 12 of the display element 11 arranged on the second surface 32 b of the element surface 31 is easily visible from below in the vertical direction of the display surface 12. In the example illustrated in FIG. 2, the upper end 12a of the display surface 12 that is the first side 1s in the first direction d1 is more than the lower end 12b of the display surface 12 that is the second side 2s in the first direction d1. The main body 40 is separated from the main body 40 along the normal direction nd of the main body 40. That is, the display surface 12 is inclined with respect to the vertical surface so as to face downward. Therefore, the solar cell composite display 10 is observed from the second side 2s in the first direction d1 with respect to the normal direction nd, that is, the directions D21 and D22 in the first angle range AR1 inclined downward in the vertical direction. Sometimes it becomes easy to visually recognize the display surface 12. Therefore, when the observer observes the solar cell composite display body 10 from the directions D21 and D22 inclined to the other side in the first direction d1 with respect to the normal direction nd, the display object 13 is displayed with excellent visibility. Can be observed.

  On the other hand, as shown in FIG. 2, the light L21, L22 incident on the solar cell composite display body 10 from a direction different from the directions D21, D22 in which the display surface 12 is easily visible, that is, the first direction with respect to the normal direction nd. In other words, the first side 1s in the direction d1, in other words, the light L21 and L22 incident on the solar cell composite display 10 from the direction inclined upward in the vertical direction is incident on the display surface 12. hard. Such light L <b> 21 and L <b> 22 is easily incident on the first surface 32 a of the element surfaces 31 of the unit element 30.

  In the example illustrated in FIG. 2, the upper end portion of the first surface 32a that is the first side 1s in the first direction d1 is more than the lower end portion of the first surface 32a that is the second side 2s in the first direction d1. The main body 40 is close to the main body 40 along the normal direction nd of the main body 40. That is, the first surface 32a is inclined with respect to the vertical surface so as to face upward. For this reason, the light L21, L22 directed toward the solar cell composite display 10 from the first side 1s in the first direction d1 with respect to the normal direction nd, that is, the direction within the second angle range AR2 inclined upward in the vertical direction. Is easily incident on the first surface 32a of the surface 10a of the solar cell composite display 10 where the display element 11 is not provided. Lights L21 and L22 incident on the first surface 32a not covered with the display element 11 pass through the first surface 32a while being refracted, and travel toward the solar cell panel 50.

  In this way, the light L21 and L22 incident on the solar cell composite display body 10 from the second angle range AR2 that is different from the directions D21 and D22 in which the display surface 12 is easily visible are mainly directed to the solar cell panel 50. By making it transmit, it is possible to achieve both a display function and a power generation function. In particular, when the solar cell composite display 10 is installed at a position higher than the human line of sight, the display target 13 of the solar cell composite display 10 is usually looked up from below. In this case, the solar cell panel 50 is hardly visually recognized by being blocked by the display surface 12. FIG. 4 shows a state where the surface 10a of the solar cell composite display 10 is observed from the second side 2s in the first direction d1 rather than the normal direction nd of the main body 40. In the state shown in FIG. 4, among the first surface 32a, the second surface 32b, the third surface 32c, and the fourth surface 32d having the same surface area, the second surface 32b is observed to be the largest, and the first surface 32a. Is the smallest observed. That is, power generation can be carried out while making the solar cell panel 50 difficult to become familiar with the surrounding environment by having the light receiving surface 50a which is a single color of dark blue or black.

  Table 1 below shows the south-high altitude (°) for each season in major cities in some countries of the world. It is preferable that the south and middle altitudes of the equinox in the major cities of the country where the use is assumed be included in the second angle range AR2. This is because there is a high possibility that it can be used effectively in that country. For example, when the country assumed to be used is Japan, the altitude from 54 ° to 56 ° may be included in the second angle range AR2. Furthermore, it is preferable that an altitude from 49 ° to 61 ° is included in the second angle range AR2, since there is a high possibility that it can be used effectively in many countries in the world. In addition, it is more preferable that the second angle range AR2 includes a range from the southern middle altitude of the summer solstice to the southern middle altitude of the winter solstice in the main cities of the country assumed to be used. This is because there is a high possibility that the country can be used effectively throughout the year. For example, when the country assumed to be used is Japan, the altitude from 31 ° to 79 ° may be included in the second angle range AR2. Furthermore, it is preferable that an altitude of 25 ° to 84 ° is included in the second angle range AR2, since there is a high possibility that it can be used effectively in many countries in the world. In order to make it easier for the desired altitude to be included in the second angle range AR2, it is preferable that the angle range of the second angle range AR2 is continuous by about 45 ° or more. However, it is also possible to make the desired altitude fall within the second angle range AR2 by arranging the solar cell composite display 10 so as to be inclined. On the other hand, the upper limit of the angle range of the second angle range AR2 may be appropriately set in balance with the first angle range AR1, but by setting it to less than about 135 °, the solar cell composite display according to the present embodiment. The features of the body 10 can be exhibited more.

  By the way, the sun doesn't just change the south-middle altitude depending on the season. The position of the sun changes greatly during the day. The sun moves from a low altitude position in the east to a high altitude position in the south, and then moves to a low altitude position in the west. Therefore, around noon, the solar cell composite display 10 is more likely to receive sunlight from a direction inclined from the normal direction nd to the first side 1s, as already described with reference to FIG. Such light L <b> 21 and L <b> 22 is transmitted through the second surface 32 b of the unit element 30 and guided to the solar cell panel 50, and can be used for heat generation in the solar cell panel 50. On the other hand, since sunlight is located at a low altitude in the morning and evening, it is impossible to efficiently capture the sunlight toward the solar cell panel 50 via the second surface 32b of the unit element 30. is there.

  On the other hand, in the illustrated example, as shown in FIG. 1, the plurality of unit elements 30 are two-dimensionally arranged. In particular, in the illustrated example, the plurality of unit elements 30 are also arranged along the second direction d2 parallel to the horizontal direction. The third surface 32c of the unit element 30 faces the third side 3s in the second direction d2, and the fourth surface 32d faces the fourth side 4s in the second direction d2. Therefore, as shown in FIG. 3, the third side 3s or the fourth side 4s in the second direction d2 instead of the first direction d1 with respect to the normal direction nd, in other words, in the horizontal direction, in other words, in the horizontal direction Lights L31, L32, L33, and L34 incident on the solar cell composite display body 10 from the direction inclined to both sides are easily incident on either the third surface 32c or the fourth surface 32d.

  In the example shown in FIG. 3, the solar cell composite display 10 is moved from the third side 3 s in the second direction d 2 with respect to the normal direction nd, that is, the direction within the third angle range AR 3 inclined to the west side in the horizontal direction. The light L31 and L32 which go to, for example, sunlight of the evening, becomes easy to inject into the 3rd surface 32c in which the display element 11 is not provided among the surfaces 10a of the solar cell composite display body 10. FIG. Further, light L33, L34 directed toward the solar cell composite display 10 from the fourth side 4s in the second direction d2 with respect to the normal direction nd, that is, the direction within the fourth angle range AR4 inclined to the east side in the horizontal direction, for example. For example, morning sunlight easily enters the fourth surface 32d of the surface 10a of the solar cell composite display body 10 where the display element 11 is not provided. The lights L31, L32, L33, L34 that have not entered the display surface 12 can pass through the third surface 32c or the fourth surface 32d while being refracted, and can enter the solar cell panel 50. That is, according to the solar cell composite display 10, the solar cell panel emits sunlight through the second surface 32b, the third surface 32c, and the fourth surface 32d of the unit element 30 from morning to evening. 50, and can generate electricity with high efficiency.

  In addition, depending on the installation position of the light control sheet 20, unlike the example described above, the display element may be displayed in a direction other than the lower direction, or in a direction other than the lower side in addition to the lower direction. It may be preferable that the display object 13 displayed by 11 is observed. In that case, it is preferable to provide the display element 11 on the surface corresponding to the direction in which the display target 13 is preferably observed among the element surfaces 31 of the unit element 30. Further, for example, when two or more of the first surface 32a to the fourth surface 32d of the unit element 30 are covered with the display element 11, the unit element 30 is arranged on one surface of the first surface 32a to the fourth surface 32d. The display target 13 displayed by the display element 11 may be the same as or different from the display target 13 displayed by the display element 11 arranged on another surface. When different, it is possible to observe different display objects 13 by changing the direction of observing the solar cell composite display 10.

  In one embodiment described above, the solar cell composite display 10 is arranged on a sheet-like main body 40 having a pair of opposed main surfaces and one main surface 40 a of the main body 40. It has a plurality of unit elements 30, a plurality of display elements 11 arranged so as to cover the corresponding unit elements 30, and a solar cell panel 50 arranged to face the main body 40. In this solar cell composite display body 10, each display element 11 is arranged so as to cover a part of the corresponding unit element 30. Therefore, the display element 11 can block the solar cell panel 50 from a specific direction, and the display element 11 can be observed from the direction. On the other hand, light from directions other than the display direction not blocked by the display element 11 can be effectively utilized for power generation by the solar cell panel 50 without being blocked by the display element 11. Therefore, by making the solar cell panel 50 inconspicuous, it is possible to achieve harmony with the surrounding environment and achieve both the display by the display element 11 and the power generation by the solar cell panel 50. And in this solar cell composite type display body 10, the several unit element 30 is further arranged in both the 1st direction d1 and the 2nd direction d2. Therefore, one of the direction inclined to one side 1s in the first direction d1 and the direction inclined to the other side 2s in the first direction d1 is used as the sunlight incident direction for power generation, and the other is used as the display direction. In addition, the direction inclined to one side 3s in the second direction d2 and the direction inclined to the other side s4 in the second direction d2 are used as the sunlight incident direction or display direction for power generation, respectively. be able to. That is, it becomes possible to finely divide the sunlight incident direction and the display direction for power generation. Thereby, the freedom degree of adjustment of the incident direction and display direction of sunlight utilized for electric power generation in this solar cell composite type display body 10 can be improved. As a result, the control of the power generation amount in the solar battery panel 50 and the control of the viewing angle of the display element 11 can be performed with high accuracy.

  Moreover, in one Embodiment mentioned above, the unit element 30 forms the convex part used as a cone shape. Therefore, it is possible to classify the sunlight incident direction and the display direction for power generation with a high degree of freedom depending on how much the side surface of the cone shape is covered with the display element 11. Thereby, the freedom degree of adjustment of the incident direction and display direction of sunlight utilized for electric power generation can be improved more.

  In particular, when the unit element 30 forms a convex portion having a pyramid shape, the incident direction and the display direction of sunlight used for power generation can be more clearly distinguished. Accordingly, it is possible to realize effective display by the display element 11 and high-efficiency power generation by the solar cell panel 50 while making the solar cell panel 50 inconspicuous effectively.

  Further, since the plurality of unit elements 30 are arranged adjacent to each other, typically arranged on one surface of the main body portion 40 without a gap, the solar cell panel 50 is made less noticeable. Can do.

  Note that various modifications can be made to the above-described embodiment. Hereinafter, an example of modification will be described with reference to the drawings as appropriate. In the following description and the drawings used in the following description, the same reference numerals as those used for the corresponding parts in the above embodiment are used for the parts that can be configured in the same manner as in the above embodiment. A duplicate description is omitted.

  In the above-described embodiment, the example in which the unit element 30 is provided on the first surface 40a opposite to the second surface 40b facing the solar cell panel 50 side of the main body 40 is shown. However, as shown in FIG. 5, the unit element 30 may be provided on the second surface 40 b facing the solar cell panel 50 side of the main body 40. In the example shown in FIG. 5, the main body 40 has a first surface 40 a and a second surface 40 b as a pair of main surfaces, and the first surface 40 a is the solar cell composite display body 10. The surface 10a and the surface of the light control sheet 20 are formed. The plurality of unit elements 30 are two-dimensionally arranged on the second surface 40 b of the main body 40.

  In the example shown in FIG. 5, each display element 11 is provided so as to cover the first surface 32 a of the corresponding unit element 30. The display element 11 has a display surface 12 on the surface facing the unit element 30. Therefore, similarly to the above-described embodiment, the display formed on the display surface 12 from the direction D51 in the first angle range AR1 inclined to the second side 2s in the first direction d1 with respect to the normal direction nd. The object 13 can be observed.

  Further, the display element 11 does not cover the second surface 32 b of the corresponding unit element 30. The second surface 32b is separated from the main body 40 along the normal direction nd at the end of the first side 1s in the first direction d1 and closer to the solar cell panel 50 than the end of the second side 2s. It is close. Therefore, from the direction D51 within the first angle range AR1, it is difficult to observe the solar cell panel 50 via the second surface 32b of the light control sheet 20. That is, it is difficult to observe the light receiving surface 50a of the solar cell panel 50 from the direction in which the display object 13 is easily observed. On the other hand, the light L51 in the direction within the second angle range AR2 inclined from the normal direction nd to the first side 1s in the first direction d1 is easily transmitted through the light control sheet 20 and incident on the solar cell panel 50. ing.

  In the solar cell composite display 10 shown in FIG. 5 as well, the display element 11 is a unit element 30 according to the installation position of the solar cell composite display 10 as in the above-described embodiment. The third surface 32c and the fourth surface 32d can be covered.

  Next, another modification will be described with reference to FIG. In the above-described embodiment, an example in which the element surface 31 of the unit element 30 includes a flat surface has been described, but the present invention is not limited thereto. As shown in FIG. 6, the element surface 31 may be formed in a curved surface shape. In the example shown in FIG. 6, the unit elements 30 have, for example, a hemispherical shape, and are two-dimensionally arranged on the second surface 40 b of the main body 40. The hemispherical element surface 31 includes a first side region 33a located on the first side 1s in the first direction d1 and a second side region 33b located on the second side 2s in the first direction d1. Yes. The display element 11 is provided on the element surface 31 so as to cover the first side region 33a. Similar to the example shown in FIG. 4, the display object formed on the display surface 12 from the direction D61 in the first angle range AR1 inclined to the second side 2s in the first direction d1 with respect to the normal direction nd. 13 is easily observed, while the solar cell panel 50 is difficult to observe. In addition, the light L61 and L62 from the direction within the second angle range AR2 inclined to the first side 1s in the first direction d1 with respect to the normal direction nd is transmitted through the light control sheet 20 and the solar cell panel 50. It is easy to enter.

  In the example shown in FIG. 6, the curved element surface 31 has a diffusion function of diffusing light toward the light receiving surface 50 a of the solar cell panel 50. Due to the light diffusing ability of the element surface 31, sunlight is uniformly incident on the entire light receiving surface 50 a, thereby improving the power generation efficiency of the solar cell panel 50. In particular, in the illustrated example, the solar cell panel 50 is separated from the light control sheet 20 along the normal direction nd from the focal position fp of the element surface 31. Therefore, according to such an arrangement, the lights L61 and L62 included in the parallel light flux that is incident on the solar cell composite display 10 and travels toward the solar cell panel 50 are spread after being condensed at the condensing position xp. The solar cell panel 50 is reached. For this reason, it contributes to making the sunlight which injects into the solar cell composite display 10 reach the wide area | region of the solar cell panel 50. FIG.

  In the example shown in FIG. 6, the unit element 30 including the curved element surface 31 is disposed on the second surface 40 b of the main body 40, but is not limited thereto. You may arrange | position on the 1st surface 40a of the main-body part 40. FIG.

  Next, another modification will be described with reference to FIG. In the above-described embodiment, an example in which the unit element 30 forms a convex portion has been described. However, the present invention is not limited to this, and the unit element 30 may form a concave portion. In the example shown in FIG. 7, the optical element portion 25 is formed on one main surface 40 a of the main body portion 40. The optical element section 25 has a plurality of unit elements 30 that are two-dimensionally arranged on the main body section 40. In the illustrated example, the plurality of unit elements 30 are integrally formed. The unit element 30 includes a recess, and the inner surface of the recess forms an element surface 31. In the illustrated example, the element surface 31 has a hemispherical shape. The hemispherical element surface 31 includes a first side region 33a located on the first side 1s in the first direction d1 and a second side region 33b located on the second side 2s in the first direction d1. Yes. The display element 11 is provided on the element surface 31 so as to cover the first side region 33a. From the direction D71 in the first angle range AR1 inclined to the second side 2s in the first direction d1 with respect to the normal direction nd, the display object 13 formed on the display surface 12 is easily observed, while the sun The battery panel 50 becomes difficult to observe. Further, the light L71 and L72 from the direction in the second angle range AR2 inclined to the first side 1s in the first direction d1 with respect to the normal direction nd is transmitted through the light control sheet 20 and the solar cell panel 50. It is easy to enter.

  In the example shown in FIG. 6, the unit element 30 including the curved element surface 31 is disposed on the first surface 40 a of the main body 40, but is not limited thereto, You may arrange | position on the 2nd surface 40b of the main-body part 40. FIG. Further, in the example shown in FIG. 6, the example has been shown in which the element surface 31 that forms the concave portion is curved, but the present invention is not limited thereto, and the element surface 31 that forms the concave portion may include a flat surface. Good.

  Next, another modification will be described with reference to FIG. In the above-described embodiment, an example in which the solar cell panel 50 is separated from the light control sheet 20 and is a separate member has been described, but the present invention is not limited thereto. As shown in FIG. 7, the light control sheet 20 and the solar cell panel 50 may be bonded via a bonding layer 45 made of an adhesive or the like. According to such an example, position shift of the light control sheet 20 and the solar cell panel 50 can be effectively prevented.

  As yet another modification, the example in which the element surface 31 non-parallel to the sheet surface of the main body 40 forms the front surface or the back surface of the light control sheet 20 in the above-described embodiment has been described. It is not limited to examples. The uneven surface of the optical element portion 25 formed by the element surface 31 of the unit element 30 may be resin-sealed. By making the front surface or the back surface of the light control sheet 20 a flat surface, it is possible to effectively prevent the accumulation of dirt such as dust, and to facilitate the cleaning operation.

  As yet another modification, the example in which the unit element 30 forms a convex portion having a quadrangular pyramid shape in the above-described embodiment has been shown. However, the present invention is not limited to this, and as shown in FIG. However, you may make it form the convex part or the recessed part used as the shape which remove | excluded the part containing a vertex from a square pyramid. In the example shown in FIG. 8, the unit element 30 forms a convex portion having a quadrangular pyramid shape. By making the unit element 30 into a frustum shape, the surface included in the element surface 31 increases. Therefore, the incident direction and display direction of sunlight used for power generation can be classified with a higher degree of freedom.

  As yet another modification, the example in which the unit element 30 forms a convex portion having a quadrangular pyramid shape in the above-described embodiment has been shown. However, the present invention is not limited thereto, and examples shown in FIGS. As described above, the unit element 30 may form a convex portion or a concave portion having a triangular pyramid shape. In this example, the element surface 31 of the unit element 30 has three flat surfaces. Hereinafter, specific examples shown in FIGS. 9 and 10 will be described. The plurality of unit elements 30 are arranged in a first direction d1, a second direction d2, and a third direction d3 that are non-parallel to each other. This unit element 30 forms a triangular pyramid-shaped convex part, and the bottom surface located on the main body part 40 is an equilateral triangle. Further, the three flat surfaces included in the element surface 31 have the same shape. In the example shown in FIG. 9, the plurality of unit elements 30 may be classified into a first group of unit elements 30a and a second group of unit elements 30b. The first group of unit elements 30a and the second group of unit elements 30b have the same shape but different directions. The plurality of first group unit elements 30a are configured in the same manner, and are arranged at a constant pitch in the first direction d1, the second direction d2, and the third direction d3. The plurality of second group unit elements 30b are configured in the same manner, and are arranged at a constant pitch in the first direction d1, the second direction d2, and the third direction d3. In the example shown in FIGS. 9 and 10, the element surface 31 of the unit element 30 has a flat surface facing six directions. Therefore, the incident direction and the display direction of sunlight used for power generation can be classified with a high degree of freedom. Further, in the example shown in FIGS. 9 and 10, the plurality of unit elements 30 are arranged on one surface of the main body 40 without leaving a gap. Therefore, the light receiving surface 50a of the solar cell panel 50 can be effectively inconspicuous.

  In addition, instead of forming the convex portion or concave portion having a triangular pyramid shape, the unit element 30 has a convex portion or concave portion having a shape obtained by removing a part including the apex from the triangular pyramid, for example, as shown in FIG. May be formed. In the example shown in FIG. 11, the unit element 30 forms a convex portion having a triangular frustum shape. By making the unit element 30 into a frustum shape, the surface included in the element surface 31 increases. Therefore, the incident direction and display direction of sunlight used for power generation can be classified with a higher degree of freedom.

  As yet another modification, the unit element 30 may form a convex portion or a concave portion having a pyramid shape other than a square or a triangle, or a shape obtained by removing a part including a vertex from the pyramid. As an example, the unit element 30 shown in FIG. 13 forms a convex portion having a hexagonal pyramid shape. Moreover, the unit element 30 shown in FIG. 14 forms a convex portion having a shape obtained by removing a part including a vertex from a hexagonal pyramid. In particular, the unit element 30 shown in FIG. 14 forms a convex portion that becomes a hexagonal frustum. As an example, the unit elements 30 shown in FIGS. 13 and 14 can be arranged in a first direction d1, a second direction d2, and a third direction d3 that are non-parallel to each other, as shown in FIG. When the hexagon forming the bottom surface of the unit element 30 is a regular hexagon, the first direction d1, the second direction d2, and the third direction d3 are inclined by 60 ° with respect to each other, so that there is no gap on the main body 40. The unit elements 30 can be arranged. In the example shown in FIGS. 12 to 14, the element surface 31 of the unit element 30 has flat side surfaces that face six directions. Therefore, the incident direction and the display direction of sunlight used for power generation can be classified with a high degree of freedom.

  When the unit element 30 forms a pyramid shape or a convex shape or a concave shape in which a part including the apex is removed from the pyramid, the incident direction and the display direction of sunlight used for power generation are more clearly classified. can do. Accordingly, it is possible to realize effective display by the display element 11 and high-efficiency power generation by the solar cell panel 50 while making the solar cell panel 50 inconspicuous effectively. In particular, when each unit element 30 forms a convex part or a concave part that has a triangular pyramid shape, a quadrangular pyramid shape, a hexagonal pyramid shape, or a shape obtained by removing a part including the apex from these pyramids, a plurality of unit elements 30 can be arranged on one surface of the main body 40 without any gap. Thereby, the solar cell panel 50 can be made inconspicuous more effectively.

  As yet another modification, as shown in FIGS. 15 and 16, the unit element 30 forms a convex portion or a concave portion in which the unit element has a conical shape or a shape obtained by removing a part including the apex from the conical shape. It may be. In this example, it is possible to classify the sunlight incident direction for power generation and the display direction with a higher degree of freedom by steplessly adjusting how much the side surface is covered with the display element 11. Thereby, the freedom degree of adjustment of the incident direction and display direction of sunlight utilized for electric power generation can be improved more. The unit elements 30 shown in FIGS. 15 and 16 may be arranged in two orthogonal directions as in the specific example shown in the above-described embodiment, or three non-parallel units as shown in FIG. It may be arranged in the direction. In the specific example shown in FIG. 16, the unit element 30 forms a convex portion that becomes a truncated cone.

  Furthermore, as another modified example, as shown in FIGS. 17 and 18, the unit element 30 may form a convex portion or a concave portion that has a shape forming a part of a sphere. In this example, it is possible to classify the sunlight incident direction for power generation and the display direction with a higher degree of freedom by steplessly adjusting how much the side surface is covered with the display element 11. Thereby, the freedom degree of adjustment of the incident direction and display direction of sunlight utilized for electric power generation can be improved more. The unit elements 30 shown in FIG. 17 and FIG. 18 may be arranged in two orthogonal directions as in the specific example shown in the above-described embodiment, or three non-parallel units as shown in FIG. It may be arranged in the direction. In the example shown in FIG. 17, the unit element 30 is a hemisphere. Further, in the specific example shown in FIG. 18, the bottom surface and the top surface of the unit element 30 are parallel.

  Furthermore, as another modified example, as shown in FIG. 19, the unit element 30 includes a cube, a part of a cube, a rectangular parallelepiped, a part of a rectangular parallelepiped, an orthorhombic crystal, a part of an orthorhombic crystal, a column such as a cylinder or a triangular prism, Or you may make it form the convex part or recessed part which becomes the shape which makes a part of pillar body, ie, various three-dimensional shapes. According to this example, it is possible to clearly distinguish the incident direction and display direction of sunlight used for power generation. Thereby, it becomes possible to realize effective display by the display element and high-efficiency power generation by the solar cell panel while making the solar cell panel 50 inconspicuous effectively. In the example shown in FIG. 19, the unit elements 30 are formed of convex portions having a cubic shape, and the plurality of unit elements 30 are regularly arranged in the first direction d1 and the second direction d2.

  Furthermore, as another modified example, as shown in FIGS. 20 to 24, the unit element 30 may form a columnar convex portion or concave portion. Here, the columnar shape is a three-dimensional shape including a portion having a constant cross-sectional shape and extending in the axial direction ad. A columnar body can be mentioned as a typical columnar unit element 30. Further, a three-dimensional shape that tapers at one or both ends and becomes a column at an intermediate portion thereof is also included in the columnar shape. In the example shown in FIGS. 20, 21, 23, and 24, the unit element 30 is a triangular prism, and in the example shown in FIG. 22, the unit element 30 is a semi-cylinder. In any example, the unit element 30 extends such that its axial direction ad is along one surface 40 a of the main body 40.

  First, in the example shown in FIGS. 20 to 24, the plurality of unit elements 30 are arranged in the first direction d1 such that the axial direction ad of the columnar shape is along the first direction d1, and the second direction They are arranged at intervals or adjacent to d2. In the example shown in FIGS. 20 and 23, the plurality of unit elements 30 are arranged adjacent to each other in the second direction d2. As a result, in the example shown in FIGS. 20 and 23, the plurality of unit elements 30 are arranged in a lattice arrangement. On the other hand, in the example shown in FIGS. 21, 22 and 24, the plurality of unit elements 30 are arranged at intervals in the second direction d2. In the example shown in FIGS. 21, 22, and 24, the plurality of unit elements 30 are arranged in a staggered arrangement. In the example shown in FIGS. 20 to 22, the solar cell composite display 10 is installed such that the second direction d2 is along the vertical direction and the first direction d1 is along the horizontal direction. Further, in the example shown in FIGS. 23 and 24, the solar cell composite display 10 is installed such that the first direction d1 is along the vertical direction and the second direction d2 is along the horizontal direction.

  20 to 24, the end surface in the axial direction ad of the unit element 30 and the exposed side surface of the columnar shape form the element surface 31. By providing the display element 11 so as to cover a part of the surface forming the element surface 31, the incident direction and the display direction of sunlight used for power generation can be divided with a high degree of freedom. Further, the unit element 30 forming the columnar convex portion or concave portion is excellent in moldability, and can be manufactured with high accuracy. From this point, it is possible to clearly distinguish the incident direction and display direction of sunlight used for power generation. Accordingly, it is possible to realize effective display by the display elements and high-efficiency power generation by the solar cell panel 50 while making the solar cell panel 50 inconspicuous effectively.

  Furthermore, as another modification, a plurality of unit elements 30 may be irregularly two-dimensionally arranged on one main surface of the main body 40 as shown in FIG. In the example shown in FIG. 25, the plurality of unit elements 30 have an irregular shape. In particular, the unit element 30 is formed in a curved line or a polygonal line. The element surface 31 of the unit element 30 may be formed in a curved surface shape. A part of the element surface 31 of each unit element 30 is covered with the display element 11.

  Also in this solar cell composite display 10, the direction inclined to one side (for example, the first side 1s) and the direction inclined to the other side (for example, the second side 2s) in one direction (for example, the first direction d1). In addition to using one of them as the solar light incident direction for power generation and using the other as the display direction, it is further inclined to one side (for example, the third side 3s) in the other direction (for example, the second direction d2). And the direction inclined toward the other side (for example, the fourth side 4s) can be used as the sunlight incident direction or the display direction for power generation, respectively. That is, it becomes possible to finely divide the sunlight incident direction and the display direction for power generation. Thereby, the freedom degree of adjustment of the incident direction and display direction of sunlight utilized for electric power generation in this solar cell composite type display body 10 can be improved. As a result, the control of the power generation amount in the solar battery panel 50 and the control of the viewing angle of the display element 11 can be performed with high accuracy.

  In addition, although the some modification with respect to embodiment mentioned above was demonstrated above, naturally, it is also possible to apply combining several modifications suitably.

d1 1st direction 1s 1st side 2s 2nd side d2 2nd direction 3s 3rd side 4s 4th side d3 3rd direction nd Normal direction ad Axial direction 10 Solar cell composite display body 10a Front surface 10b Back surface 11 Display element 12 Display surface 12a Upper end 12b Lower end 13 Display target 20 Light control sheet 25 Optical element 30 Unit element 31 Element surface 32a First surface 32b Second surface 32c Third surface 32d Fourth surface 33a First side region 33b 2nd side area | region 40 Main-body part 40a 1st surface 40b 2nd surface 50 Solar cell panel 50a Light-receiving surface

Claims (14)

A sheet-like main body having a pair of opposing surfaces;
A plurality of unit elements arranged on one surface of the main body part in both the first direction and the second direction non-parallel to the first direction, each forming a convex part or a concave part;
A plurality of display elements each arranged so as to cover a part of the corresponding unit element;
A solar cell composite-type display body comprising: a solar cell panel disposed to face the main body portion. Each unit element forms a columnar convex portion or concave portion,
The plurality of unit elements are arranged in the first direction such that the axial direction of the columnar shape is along the first direction, and are spaced apart in the second direction or adjacent to the second direction. The solar cell composite display according to claim 1, wherein the solar cell composite display is arranged.   2. The solar cell composite display according to claim 1, wherein each unit element forms a convex portion or a concave portion having a shape forming a part of a sphere.   2. The solar cell composite display according to claim 1, wherein each unit element forms a convex portion or a concave portion having a shape that forms a cube, a part of a cube, a rectangular parallelepiped, or a part of a rectangular parallelepiped. Each unit element forms a convex lens or a concave lens,
In a cross section parallel to both the normal direction and the first direction of the main body, the solar cell panel is more distant from the unit element than the focal point at which the parallel light flux incident along the optical axis of the unit element converges. The solar cell composite display according to claim 1, which is disposed at a spaced position.   2. The solar cell composite display according to claim 1, wherein each unit element forms a convex portion or a concave portion having a cone shape or a shape obtained by removing a part including a vertex from a cone. A sheet-like main body having a pair of opposing surfaces;
A plurality of unit elements that are provided on one surface of the main body part, each of which forms a convex part or a concave part, each having a cone shape or a shape obtained by removing a part including a vertex from a cone;
A plurality of display elements each arranged so as to cover a part of the corresponding unit element;
A solar cell composite-type display body comprising: a solar cell panel disposed to face the main body portion.   8. The solar cell composite display according to claim 6, wherein each unit element forms a convex portion or a concave portion having a conical shape or a shape obtained by removing a part including a vertex from a conical shape.   8. The solar cell composite display according to claim 6, wherein each unit element forms a convex portion or a concave portion having a pyramid shape or a shape obtained by removing a part including a vertex from the pyramid.   The solar cell composite display according to any one of claims 1 to 9, wherein the plurality of unit elements are arranged in a lattice shape, particularly a square lattice shape.   The solar cell composite display according to any one of claims 1 to 9, wherein the plurality of unit elements are arranged in a staggered manner.   The solar cell composite display according to any one of claims 1 to 11, wherein the plurality of unit elements are arranged adjacent to each other.   The solar cell composite display according to any one of claims 1 to 12, wherein the plurality of unit elements are arranged without a gap on one surface of the main body. A sheet-like main body having a pair of opposing surfaces;
A plurality of unit elements that are irregularly two-dimensionally arranged on one surface of the main body part, each forming a convex part or a concave part,
A plurality of display elements each arranged so as to cover a part of the corresponding unit element;
A solar cell composite-type display body comprising: a solar cell panel disposed to face the main body portion.

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