Solar cell and display apparatus including same

Abstract

This display apparatus comprises: a rectangular display having a first side and a second side longer than the first side, and including a connecting part provided on the rear surface thereof; and a solar cell detachably coupled to the display and provided to supply power to the display. The solar cell comprises: a solar panel provided to convert light energy of the sun into electrical energy; and a coupling unit provided to be coupled to the display, and including a first power supply unit provided on a first surface of the coupling unit and a second power supply unit provided on a second surface opposite to the first surface. When the solar cell is coupled to the display such that the solar panel is disposed parallel to the first side, the first surface is disposed toward the rear surface of the display so that the first power supply unit is connected to the connecting part. When the solar cell is coupled to the display such that the solar panel is disposed parallel to the second side, the second surface is disposed toward the rear surface of the display so that the second power supply unit is connected to the connecting part.

Description

Solar cell and display device including the same

[0001] The present disclosure relates to a solar cell and a display device including the same.

[0002] A display device is a type of output device that converts acquired or stored electrical information into visual information and displays it to the user.

[0003] Display devices include monitor devices connected to personal computers or server computers, portable computer devices, navigation terminal devices, general television devices, Internet Protocol television (IPTV) devices, portable terminal devices such as smart phones, tablet PCs, personal digital assistants (PDAs), or cellular phones, various display devices used to play images such as advertisements or movies in industrial settings, and various other types of audio / video systems.

[0004] An example of a display device is an electronic paper (E-paper) display device. E-paper displays consume power only when changing screens, and have the advantage of very low power consumption.

[0005] Since the electronic paper display device has low power consumption, it can operate continuously without external energy supply if it is connected to a power supply device that can convert environmentally friendly energy such as solar energy into electric energy and receives power from the power supply device.

[0006] A solar cell is a power supply device that converts solar energy into electricity. Using the photovoltaic effect, solar cells can convert light energy, a type of solar energy, into electricity.

[0007] One aspect of the present disclosure provides a solar cell coupled to a display and configured to supply power to the display, and a display device including the same.

[0008] One aspect of the present disclosure provides a solar cell that can be coupled to each of the long and short sides of a display, and that can be extended and reduced in length to correspond to the length of each side, and a display device including the same.

[0009] One aspect of the present disclosure provides a solar cell capable of being coupled to each of the long side and short side of a display in a single structure, and a display device including the same.

[0010] The technical problems to be achieved in this document are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by a person having ordinary skill in the technical field to which the present invention belongs from the description below.

[0011] A display device according to the present disclosure comprises a display having a first side and a second side longer than the first side, the display including a connecting portion provided on the rear surface thereof, and a solar cell detachably coupled to the display and configured to supply power to the display. The solar cell comprises a solar panel configured to convert solar light energy into electrical energy, and a coupling portion coupled to the display, the coupling portion including a first power supply portion provided on a first surface of the coupling portion, and a second power supply portion provided on a second surface opposite the first surface. When the solar cell is coupled to the display such that the solar panel is arranged parallel to the first surface, the first surface is arranged toward the rear surface of the display such that the first power supply portion is connected to the connecting portion. When the solar cell is coupled to the display such that the solar panel is arranged parallel to the second surface, the second surface is arranged toward the rear surface of the display such that the second power supply portion is connected to the connecting portion.

[0012] FIG. 1 illustrates a display and a solar cell according to one embodiment.

[0013] Figure 2 illustrates the back of the display and solar cell illustrated in Figure 1.

[0014] Figure 3 is an enlarged view of A in Figure 2.

[0015] FIG. 4 illustrates a display and a solar cell separated according to one embodiment.

[0016] FIG. 5 illustrates a display and a solar cell according to one embodiment.

[0017] Figure 6 illustrates the back of the display and solar cell illustrated in Figure 5.

[0018] Figure 7 is an enlarged view of B in Figure 6.

[0019] FIG. 8 illustrates a portion of a solar cell according to one embodiment.

[0020] Figure 9 illustrates the solar cell illustrated in Figure 8 from a different angle.

[0021] FIG. 10 illustrates a side view of a display and solar cell according to one embodiment.

[0022] FIG. 11 illustrates the display and solar cell illustrated in FIG. 10, with the solar cell panel extended out by a first distance.

[0023] FIG. 12 illustrates the display and solar cell illustrated in FIG. 11, with the solar cell panel tilted.

[0024] FIG. 13 illustrates the display and solar cell illustrated in FIG. 10, with the solar cell panel extended by a second distance.

[0025] FIG. 14 illustrates the display and solar cell illustrated in FIG. 10, with the solar cell panel extended out by a third distance.

[0026] FIG. 15 illustrates the display and solar cell illustrated in FIG. 14, with the solar cell panel arranged to face forward.

[0027] FIG. 16 illustrates the interior of a solar cell in a display and solar cell according to one embodiment.

[0028] FIG. 17 illustrates a solar cell according to one embodiment, in which a portion of the third panel is withdrawn.

[0029] Figure 18 shows a cross-section along line C-C' of Figure 17.

[0030] Figure 19 shows a cross-section along line D-D' of Figure 17.

[0031] FIG. 20 illustrates a solar cell according to one embodiment, with the third panel fully extended.

[0032] Figure 21 shows a cross-section along line E-E' of Figure 20.

[0033] Figure 22 shows a cross-section along line F-F' of Figure 20.

[0034] Figure 23 shows the solar cell illustrated in Figure 20 from a different angle.

[0035] Figure 24 is a cross-sectional perspective view of G in Figure 23.

[0036] FIG. 25 illustrates a display according to one embodiment, with the solar cell and bracket separated.

[0037] The embodiments described in this specification and the configurations illustrated in the drawings are merely preferred examples of the disclosed invention, and there may be various modified examples that can replace the embodiments and drawings of this specification at the time of filing of this application.

[0038] Additionally, the same reference numbers or symbols presented in each drawing of this specification represent parts or components that perform substantially the same function.

[0039] Additionally, the singular form of a noun corresponding to an item may include one or more of said items, unless the relevant context clearly indicates otherwise.

[0040] Additionally, in this document, each of the phrases "A or B", "at least one of A and B", "at least one of A or B", "A, B, or C", "at least one of A, B, and C", and "at least one of A, B, or C" may include any one of the items listed together in the corresponding phrase, or all possible combinations thereof.

[0041] Additionally, the terms "part," "module," and "member" may be implemented in hardware or software. Depending on the embodiments, multiple "parts," "modules," and "members" may be implemented as a single component, or a single "part," "module," or "member" may include multiple components.

[0042] In addition, the terminology used in this specification is used to describe embodiments and is not intended to limit and / or restrict the disclosed invention. The singular expression includes plural expression unless the context clearly indicates otherwise. In this specification, the terms "comprise" or "have" and the like are intended to specify the presence of a feature, number, step, operation, component, part, or combination thereof described in the specification, but do not exclude in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0043] Additionally, terms including ordinal numbers such as “first,” “second,” etc. used herein may be used to describe various components, but the components are not limited by the terms, and the terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component. The term “and / or” includes any combination of a plurality of related listed items or any item among a plurality of related listed items.

[0044] When a component (e.g., a first component) is referred to as being "coupled" or "connected" to another component (e.g., a second component), with or without the terms "functionally" or "communicatively," it means that the component can be connected to the other component directly (e.g., wired), wirelessly, or through a third component.

[0045] When a component is said to be “connected,” “coupled,” “supported,” or “in contact with” another component, this includes not only cases where the components are directly connected, coupled, supported, or in contact, but also cases where the components are indirectly connected, coupled, supported, or in contact through a third component.

[0046] When we say that a component is "on" another component, this includes not only cases where the component is in contact with the other component, but also cases where there is another component between the two components.

[0047] Meanwhile, the terms "up-down direction", "front-back direction", etc. used in the following description are defined based on the drawings, and the shape and position of each component are not limited by these terms. For example, the term "front" below may refer to the X direction shown in the drawings. "Rear" may refer to the opposite direction of "front". The term "upper" below may refer to the Z direction shown in the drawings. "Downward" may refer to the opposite direction of "upper". The term "left direction" below may refer to the Y direction shown in the drawings. "Right direction" may refer to the opposite direction of the "left direction". The term "vertical direction" below may refer to the Z direction shown in the drawings, respectively, and the term "horizontal direction" below may refer to the Y direction shown in the drawings, respectively.

[0048] Hereinafter, embodiments according to the present invention will be described in detail with reference to the attached drawings.

[0049] FIG. 1 illustrates a display and a solar cell according to one embodiment. FIG. 2 illustrates the back of the display and solar cell illustrated in FIG. 1. FIG. 3 is an enlarged view of A in FIG. 2. FIG. 4 illustrates the display and solar cell separately according to one embodiment.

[0050] Referring to FIG. 1, a display (10) according to one embodiment may have a roughly rectangular shape. The display (10) may have a long side (11) and a short side (12) shorter than the long side. The long side (11) and the short side (12) may be arranged perpendicular to each other. Hereinafter, the short side (12) may refer to the first side. The long side (11) may refer to the second side.

[0051] The display (10) may include an electronic paper (E-paper) display device with low power consumption. The display (10) may be configured to display any one of several pre-stored screens. The display (10) may be configured not to consume power after refreshing the screen.

[0052] The display (10) may include electronic ink (e-ink). The display (10) may include hundreds of thousands to millions of microcapsules. Charged particles may be accommodated inside the microcapsules. The display (10) may form an image by applying an electric field to move the colored particles to the screen surface of the display (10). After the image is formed on the screen of the display (10), the positions of the colored particles do not change even when the electric field is removed, so the display (10) can continue to display the image without consuming power.

[0053] As described above, the display (10) according to one embodiment may include an electronic paper display device using electronic ink. Accordingly, the power consumption of the display (10) may be very low. However, even if the power consumption of the display (10) is low, if power is not supplied to the display (10), the display (10) cannot change the screen. Therefore, a power supply is required for the display (10) to display multiple screens while switching between them.

[0054] Referring to FIG. 1, a solar cell (100) may be coupled to a display (10). Hereinafter, the solar cell (100) may refer to a power supply device. The solar cell (100) may be connected to the display (10) and supply power to the display (10). The solar cell (100) may convert solar energy into electricity. Specifically, the solar cell (100) may be configured to convert solar light into electricity. The solar cell (100) may be configured to operate using the photoelectric effect. The photoelectric effect refers to a phenomenon in which electrons are emitted when light is absorbed by a material. The solar cell (100) may generate electricity using the sun, an infinite and environmentally friendly energy source.

[0055] The display (10) and the solar cell (100) can be placed outdoors. The solar cell (100) can convert sunlight into electricity through the first panel (110) and the second panel (120). The first panel (110), the second panel (120), and the third panel (130) to be described later can each be provided to convert sunlight energy into electrical energy. The first panel (110), the second panel (120), and the third panel (130) can each include a solar panel. The display (10) can operate by receiving power from the solar cell (100). Since the solar cell (100) can generate electricity using sunlight, if the solar cell (100) is placed outdoors or in a location where sunlight is not blocked, the solar cell (100) can generate electricity. Since the display (10) can be powered by the solar cell (100), it can continue to operate outdoors without any additional power supply other than the solar cell (100).

[0056] Referring to FIG. 1, the display (10) may have its long side (11) arranged vertically or vertically. Hereinafter, when the long side (11) of the display (10) is arranged vertically, the display (10) is expressed as being arranged vertically.

[0057] When the display (10) is vertically arranged, the solar cell (100) can be coupled to the short side (12) of the display (10). The solar cell (100) can be coupled to the display (10) so as to be positioned at the top of the display (10).

[0058] As illustrated in Fig. 1, a bracket (20) may be coupled to the display (10). A wire (30) may be connected to the bracket (20). The display (10) and solar cell (100) may be hung on a ceiling or wall via the wire (30) connected to the bracket (20).

[0059] Referring to FIG. 2, a solar cell (100) may be coupled to the rear surface of a display (10). The solar cell (100) may include a first coupling portion (140) and a second coupling portion (150). The first coupling portion (140) and the second coupling portion (150) may be coupled to one side and the other side of the rear surface of the display (10), respectively. When the display (10) is vertically arranged, the first coupling portion (140) may be coupled to one side of the rear surface adjacent to the top of the display (10). When the display (10) is vertically arranged, the second coupling portion (150) may be coupled to the other side of the rear surface adjacent to the top of the display (10).

[0060] Referring to FIG. 3, the first coupling unit (140) may include a power supply unit (141, 142) (FIGS. 8 and 9) for supplying power from a solar cell (100) to a display (10). The power supply unit (141, 142) may be provided to be electrically connected to a connecting unit (13) provided on the rear surface of the display (10). The power supply unit (141, 142) may include a pogo pin.

[0061] The power supply unit (141, 142) may include a first power supply unit (141) provided on a first surface of the first coupling unit (140) and a second power supply unit (142) provided on a second surface of the first coupling unit (140). The first surface of the first coupling unit (140) may refer to either the front or the rear surface of the first coupling unit (140), and the second surface of the first coupling unit (140) may refer to the other of the front or the rear surface of the first coupling unit (140).

[0062] Referring to FIGS. 2 and 3, when the display (10) is vertically arranged, the first coupling unit (140) coupled to the display (10) can be arranged so that the second power supply unit (142) faces the rear of the display (10). The first power supply unit (141) of the first coupling unit (140) can be arranged so as to face the front of the display (10), thereby being electrically connected to the connecting unit (13) provided on the rear of the display (10).

[0063] The first coupling unit (140) and the second coupling unit (150) may be configured identically except for the power supply units (141, 142) mentioned above. In other words, except that the first coupling unit (140) includes the power supply units (141, 142), the first coupling unit (140) and the second coupling unit (150) may have the same structure.

[0064] Referring to FIG. 4, the solar cell (100) can be coupled to the display (10) through the coupling member (40). More specifically, the coupling member (40) passes through the first coupling hole (143) of the first coupling portion (140) and is coupled to the second coupling hole (14) formed on the back of the display (10), so that the first coupling portion (140) can be coupled to the display (10). Although not shown in the drawing, the second coupling portion (150), like the first coupling portion (140), can be coupled to the display (10) through the coupling member (40). The second coupling portion can include a third coupling hole, like the first coupling hole (143) of the first coupling portion (140), and a fourth coupling hole corresponding to the third coupling hole can be formed on the back of the display (10).

[0065] Referring to Fig. 4, a second coupling hole (14) may be formed on the back of the display (10) to insert and fasten a coupling member (40). A connecting portion (13) may be provided around the second coupling hole (14) to be electrically connected to a power supply portion. The connecting portion (13) may be provided in the shape of a plurality of circles having the same center and different diameters. In other words, the connecting portion (13) may include a plurality of concentric circles. Pins of the power supply portion may be inserted between the plurality of circles included in the connecting portion (13). Since the connecting portion (13) has a structure of a plurality of concentric circles, even if only one connecting portion (13) is provided on the back of the display (10), the solar cell (100) may be coupled to the display (10) regardless of the vertical or horizontal arrangement of the display. This is because the connection positions of the first power supply unit (141) and the connecting unit (13) when the display (10) is placed vertically are different from the connection positions of the second power supply unit (142) and the connecting unit (13) when the display (10) is placed horizontally.

[0066] When the first power supply unit (141) is connected to the connecting unit (13), the first power supply unit (141) and the connecting unit (13) can correspond to each other at a first position. When the second power supply unit (142) is connected to the connecting unit (13), the second power supply unit (142) and the connecting unit (13) can correspond to each other at a second position different from the first position. The first position and the second position may be positions rotated 90 degrees around the center of the above-described concentric circle as a rotational center. The connecting unit (13) may be provided so as to be connectable to the first power supply unit (141) and the second power supply unit (142) in a predetermined area including the first position and the second position. Since the connecting part (13) has a plurality of concentric circle structures, the predetermined area may be an area in which the first power supply part (141) or the second power supply part (142) can rotate 360 ​​degrees with the center of the concentric circle as the rotation center.

[0067] Fig. 5 illustrates a display and a solar cell according to one embodiment. Fig. 6 illustrates the back of the display and solar cell illustrated in Fig. 5. Fig. 7 is an enlarged view of B in Fig. 6.

[0068] Referring to FIG. 5, the display (10) can be arranged with its long side (11) horizontally or horizontally. Hereinafter, when the long side (11) of the display (10) is arranged horizontally, the display (10) is expressed as being arranged horizontally.

[0069] As illustrated in FIG. 5, the solar cell (100) according to one embodiment can be coupled to not only the short side (12) of the display (10) but also the long side (11). When the display (10) is arranged vertically, the length of the solar cell (100) can correspond to the length of the short side (12) of the display (10). When the display (10) is arranged horizontally, the length of the solar cell (100) can be extended to correspond to the length of the long side (11) of the display (10). To this end, when the length of the solar cell (100) corresponds to the length of the short side (12) of the display (10), the first panel (110) and the second panel (120) of the solar cell (100) can be exposed to the outside, and the third panel (130) can be inserted between the first panel (110) and the second panel (120). When the third panel (130) is inserted between the first panel (110) and the second panel (120), the third panel (130) may not be exposed to the outside. When the length of the solar cell (100) corresponds to the length of the long side (11) of the display (10), the first panel (110), the second panel (120), and the third panel (130) of the solar cell (100) may be exposed to the outside. In other words, the third panel (130) may be pulled out from between the first panel (110) and the second panel (120).

[0070] Referring to FIG. 5, the solar cell (100) can be coupled to the display (10) by having a first coupling portion (140) and a second coupling portion (150) coupled to the rear surface of the display (10), respectively. The first coupling portion (140) can be coupled to one side adjacent to the top of the display (10). The second coupling portion (150) can be coupled to the other side adjacent to the top of the display (10). The first coupling portion (140) and the second coupling portion (150) can be coupled to the rear surface of the display (10) via a coupling member (40).

[0071] Referring to FIGS. 6 and 7, when the display (10) is horizontally arranged, the first coupling unit (140) coupled to the display (10) can be arranged so that the first power supply unit (141) faces the rear of the display (10). The second power supply unit (142) of the first coupling unit (140) can be arranged so as to face the front of the display (10), thereby being electrically connected to the connecting unit (13) provided on the rear of the display (10).

[0072] As described above, when the display (10) is arranged vertically, the solar cell (100) can supply power to the display (10) using the first power supply unit (141) provided on the first surface of the first coupling unit (140). When the display (10) is arranged horizontally, the solar cell (100) can supply power to the display (10) using the second power supply unit (142) provided on the second surface of the first coupling unit (140).

[0073] Through the double-sided bonding structure of the first bonding portion (140) described above, even if only one connecting portion (13) is provided on the rear surface of the display (10), the solar cell (100) can be bonded to the long side (11) and the short side (12) of the display (10), respectively. Specifically, by connecting the first power supply portion (141) to one connecting portion (13) provided on the rear surface of the display (10), the solar cell (100) can be bonded to the short side (12) of the display (10), and by connecting the second power supply portion (142) to the connecting portion (13), the solar cell (100) can be bonded to the long side (11) of the display (10). If the power supply portion is provided on only one side of the first bonding portion, at least two connecting portions must be provided on the display so that the solar cell can be bonded to the long side and the short side of the display, respectively.

[0074] Fig. 8 illustrates a portion of a solar cell according to one embodiment. Fig. 9 illustrates the solar cell illustrated in Fig. 8 from a different angle.

[0075] Hereinafter, the first coupling portion (140), the height adjustment member, and the hinge member of the solar cell (100) according to one embodiment will be described in detail with reference to FIGS. 8 and 9. As described above, the second coupling portion (150) has the same structure as the first coupling portion (140) except for the power supply portions (141, 142), and therefore, a description of the structure of the second coupling portion (150) will be omitted.

[0076] Referring to FIGS. 8 and 9, the first coupling portion (140) of the solar cell (100) may include a first power supply portion (141) provided on one surface of the first coupling portion (140) and a second power supply portion (142) provided on the other surface of the first coupling portion (140). The first coupling portion (140) may include a first coupling hole (143) formed by penetrating one surface and the other surface of the first coupling portion (140). A coupling member (40) may be inserted into the first coupling hole (143).

[0077] The solar cell (100) may include a height adjustment member (161, 166) (Fig. 13) that is provided to be inserted into the inside of the first coupling portion (140) or withdrawn from the inside of the first coupling portion (140). The height adjustment member (161, 166) may be provided to adjust the distance between the first coupling portion (140) and the first panel (110). The height adjustment member (161, 166) may include a first height adjustment member (161) and a second height adjustment member (166). By withdrawn from the inside of the first coupling portion (140), the first panel (110) may be spaced apart from the first coupling portion (140) by a first distance. After the first height adjustment member (161) is withdrawn from the inside of the first connecting portion (140), the second height adjustment member (166) is withdrawn from the inside of the first connecting portion (140), so that the first panel (110) can be spaced apart from the first connecting portion (140) by a second distance.

[0078] The solar cell (100) may include a hinge member (162) connected to the first height adjusting member (161) so as to be rotatable relative to the first height adjusting member (161).

[0079] The hinge member (162) may be connected to one end of the first height adjusting member (161). Referring to FIGS. 8 and 9, the hinge member (162) may be connected to the upper end of the first height adjusting member (161). The hinge member (162) may include a first hinge member (162a) arranged on one side of the first height adjusting member (161) and a second hinge member (162b) arranged on the other side of the first height adjusting member (161).

[0080] The hinge member (162) can be connected to the first height adjustment member (161) via the first shaft (163). The first shaft (163) can pass through the first hinge member (162a) and be connected to one side of the first height adjustment member (161). The first shaft (163) can pass through the second hinge member (162b) and be connected to the other side of the first height adjustment member (161). The first hinge member (162a) and the second hinge member (162b) can each rotate with respect to the first height adjustment member (161) using the first shaft (163) as a rotation axis. A first rotation axis (r1) of the hinge member (162) can be formed along the direction in which the first shaft (163) extends. In other words, the hinge member (162) can rotate about the first rotation axis (r1) with respect to the first height adjustment member (161). The first rotation axis (r1) can be formed at one end of the hinge member (162).

[0081] A second shaft (164) may be provided at the other end of the hinge member (162). The second shaft (164) may include a first shaft portion (164a) that is provided to be rotatable with respect to the other end of the first hinge member (162a), and a second shaft portion (164b) that is provided to be rotatable with respect to the other end of the second hinge member (162b). A second rotation axis (r2) of the hinge member (162) may be formed along the direction in which the second shaft (164) extends. The second rotation axis (r2) may refer to the rotation axis of the first panel (110). The second rotation axis (r2) may be formed at the other end of the hinge member (162). When the second shaft (164) is placed on one end of the first panel (110), the first panel (110) can rotate about the other end of the hinge member (162) with the second shaft (164) as the center.

[0082] The solar cell (100) may further include a sliding member (165). The sliding member (165) may be provided to slide along a sliding hole (112a, 112b) (Fig. 16) to be described later. The sliding member (165) may be provided at the other end of the hinge member (162).

[0083] The sliding member (165) may include a first sliding member (165a) configured to rotate together with the first shaft portion (164a), and a second sliding member (165b) configured to rotate together with the second shaft portion (164b). The sliding member (165) and the sliding holes (112a, 112b) will be described later.

[0084] FIG. 10 illustrates a side view of a display and a solar cell according to one embodiment. FIG. 11 illustrates a state in which the solar cell panel is extended by a first distance in the display and solar cell illustrated in FIG. 10. FIG. 12 illustrates a state in which the solar cell panel is tilted in the display and solar cell illustrated in FIG. 11. FIG. 13 illustrates a state in which the solar cell panel is extended by a second distance in the display and solar cell illustrated in FIG. 10. FIG. 14 illustrates a state in which the solar cell panel is extended by a third distance in the display and solar cell illustrated in FIG. 10. FIG. 15 illustrates a state in which the solar cell panel is arranged to face forward in the display and solar cell illustrated in FIG. 14.

[0085] Hereinafter, the height adjustment operation and tilting operation of a solar cell (100) according to one embodiment will be described with reference to FIGS. 10 to 15. The following describes the first coupling portion (140) and the first panel (110), but the same description may also be applied to the second coupling portion (150) and the second panel (120).

[0086] Referring to FIG. 10, when the solar cell (100) is coupled to the display (10), the first panel (110) may be arranged to be in contact with the top of the display (10). The first panel (110) may be arranged perpendicular to the screen of the display (10). The first panel (110) may be arranged to face upward. The first panel (110) and the first coupling portion (140) may not be spaced apart from each other. Contrary to the literal meaning, the fact that the first panel (110) and the first coupling portion (140) are not spaced apart from each other may include that there is a small gap between the first panel (110) and the first coupling portion (140). To prevent the first panel (110) from being separated from the first joint (140), the first height adjustment member (161) and the second height adjustment member (166) can be inserted into the inside of the first joint (140).

[0087] Referring to Fig. 11, the first height adjustment member (161) can be pulled out upward from the inside of the first coupling portion (140). As the first height adjustment member (161) is pulled out from the first coupling portion (140), the first panel (110) can be spaced apart from the first coupling portion (140). When the first height adjustment member (161) is pulled out from the inside of the first coupling portion (140), the first panel (110) can be spaced apart from the first coupling portion (140) in the vertical direction by a first distance.

[0088] Referring to FIG. 12, when the first height adjustment member (161) is pulled out from the first coupling portion (140), the first panel (110) can rotate around the first shaft (163) as a rotation axis. When the first height adjustment member (161) is pulled out from the first coupling portion (140), the first shaft (163) can be positioned at one end of the first panel (110). The first panel (110) can rotate around the first shaft (163) positioned at one end of the first panel (110). As the first panel (110) rotates around the first shaft (163), the first panel (110) can be arranged at an angle with respect to the display (10). Hereinafter, when the first panel (110) is not arranged vertically with respect to the display (10) but is arranged at an angle, the first panel (110) is expressed as being tilted. Since the first panel (110) is arranged to be tiltable with respect to the display (10), the first panel (110) can be arranged so that the first panel (110) faces the sun. By arranging the first panel (110) toward the sun, the solar cell (100) can receive a greater amount of sunlight and convert it into electrical energy.

[0089] Referring to Fig. 13, after the first height adjustment member (161) is withdrawn, the second height adjustment member (166) can be withdrawn from the first coupling portion (140). When the first height adjustment member (161) and the second height adjustment member (166) are withdrawn from the first coupling portion (140), the first panel (110) can be spaced apart from the first coupling portion (140) by a second distance. The second distance is greater than the first distance, and the length by which the second height adjustment member (166) is withdrawn can be greater than the length by which the first height adjustment member (161) is withdrawn.

[0090] Referring to Fig. 14, after the first height adjusting member (161) and the second height adjusting member (166) are withdrawn from the first connecting portion (140), the distance between the first panel (110) and the first connecting portion (140) can be increased by rotating the hinge member (162). By rotating the hinge member (162) around the first shaft (163) provided at one end of the hinge member (162) as the rotation axis, the hinge member (162), which was arranged horizontally, can be arranged vertically. In the process of the hinge member (162) being arranged vertically, the other end of the hinge member (162) can move toward the end of the first panel (110). Accordingly, when the hinge member (162) is arranged vertically, the other end of the hinge member (162) where the second shaft (164) is provided can be located at one end of the first panel (110).

[0091] As illustrated in Fig. 14, when the hinge member (162) is arranged vertically and the first panel (110) is arranged horizontally, the separation distance between the first panel (110) and the first connecting portion (140) becomes maximum, and the separation distance at this time is referred to as the third distance. The third distance is greater than the first distance and the second distance.

[0092] Referring to FIG. 15, by rotating the vertically arranged hinge member (162) about the first shaft (163) as the rotation axis, the hinge member (162) can be arranged to be inclined at a predetermined angle with respect to the first height adjustment member (161). After the hinge member (162) is arranged to be inclined at a predetermined angle with respect to the first height adjustment member (161), the first panel (110) can be arranged to face forward by rotating the first panel (110) around the second shaft (164) provided at the other end of the hinge member (162) and at one end of the first panel (110). By arranging the first panel (110) to face forward, the screens of the first panel (110) and the display (10) can be arranged to face the same direction. Through this, the screen of the first panel (110) and the display (10) can be arranged on one plane.

[0093] As described above, the solar cell (100) according to the present disclosure includes a first height adjustment member (161), a second height adjustment member (166), a hinge member (163), a first shaft (163), and a second shaft (164), thereby allowing the distance between the first panel (110) and the display (10) to be adjusted in various ways, and the angle between the first panel (110) and the display (10) can also be adjusted in various ways.

[0094] FIG. 16 illustrates the interior of a solar cell in a display and solar cell according to one embodiment.

[0095] Referring to FIG. 16, in a solar cell (100) according to one embodiment, the first panel (110), the second panel (120), and the third panel (130) may be provided to be movable in the forward and backward directions. The first panel (110), the second panel (120), and the third panel (130) may be provided to be movable forward or backward with respect to the first height adjustment member (161).

[0096] Referring to FIGS. 8, 9, and 16, a first shaft (163) may be provided at one end of a hinge member (162), and a second shaft (164) and a sliding member (165) may be provided at the other end of the hinge member (162). The sliding member (165) may be provided to rotate together with the second shaft (164).

[0097] As described above, the sliding member (165) may include a first sliding member (165a) that is arranged to rotate together with the first shaft portion (164a) of the second shaft (164), and a second sliding member (165b) that is arranged to rotate together with the second shaft portion (164b) of the second shaft (164).

[0098] The solar cell (100) may include a first case (111) whose upper surface is covered by a first panel (110). The solar cell (100) may include a second case (121) (Fig. 23) whose upper surface is covered by a second panel (120). The second case (121) may have the same structure that is symmetrical to the first case (111). Since the second panel (120) and the second case (121) have the same structure as the first panel (110) and the first case (111), only the first panel (110) and the first case (111) will be described below.

[0099] The first sliding member (165a) can slide forward and backward along the first sliding hole (112a) formed in the first case (111). The second sliding member (165b) can slide forward and backward along the second sliding hole (112b) formed in the first case (111).

[0100] The first sliding member (165a) may include a first head portion that is provided so as not to pass through the first sliding hole (112a). The second sliding member (165b) may include a second head portion that is provided so as not to pass through the second sliding hole (112b). The first head portion may have a width greater than the width of the first sliding hole (112a), and the second head portion may have a width greater than the width of the second sliding hole (112b). The width of the first sliding hole (112a) refers to the length in a direction perpendicular to the direction in which the first sliding hole (112a) extends. The width of the first head portion refers to the length in the width direction of the first sliding hole (112a). Similarly, the width of the second sliding hole (112b) refers to the length in a direction perpendicular to the direction in which the second sliding hole (112b) extends. The width of the second head part refers to the length in the width direction of the second sliding hole (112b).

[0101] The first sliding hole (112a) and the second sliding hole (112b) can each extend from the front end of the first case (111) to the rear end of the first case (111). Accordingly, the first sliding member (165a) can move from the front end of the first case (111) to the rear end of the first case (111) along the first sliding hole (112a). Similarly, the second sliding member (165b) can move from the front end of the first case (111) to the rear end of the first case (111) along the second sliding hole (112b).

[0102] When the first panel (110) is moved rearward as much as possible, the first sliding member (165a) can be positioned at the front end of the first sliding hole (112a). When the first panel (110) is moved forward as much as possible, the first sliding member (165b) can be positioned at the rear end of the first sliding hole (112a).

[0103] FIG. 17 illustrates a solar cell according to one embodiment, in which a portion of the third panel is withdrawn. FIG. 18 illustrates a cross-section taken along line C-C' of FIG. 17. FIG. 19 illustrates a cross-section taken along line D-D' of FIG. 17. FIG. 20 illustrates a solar cell according to one embodiment, in which the third panel is withdrawn to the maximum. FIG. 21 illustrates a cross-section taken along line E-E' of FIG. 20. FIG. 22 illustrates a cross-section taken along line F-F' of FIG. 20.

[0104] Referring to FIGS. 17 and 20, in a solar cell (100) according to one embodiment, the first panel (110) and the second panel (120) can move away from each other. When the first panel (110) and the second panel (120) move away from each other, the third panel (130) that was inserted between the first panel (110) and the second panel (120) can be pulled out. FIG. 17 illustrates a state in which a portion of the third panel (130) is pulled out, and FIG. 20 illustrates a state in which the third panel (130) is pulled out to the maximum. When the third panel (130) is pulled out to the maximum, the lengths of the first panel (110), the second panel (120), and the third panel (130) can correspond to the length of the long side (11) of the display (10). When the third panel (130) is not withdrawn, the lengths of the first panel (110) and the second panel (120) can correspond to the length of the short side (12) of the display (10).

[0105] Referring to FIG. 18, when a portion of the third panel (130) is withdrawn, the unwithdrawn portion of the third panel (130) may be positioned below the first panel (110). As at least a portion of the third panel (130) is positioned below the first panel (110), a step exists between the third panel (130) and the first panel (110).

[0106] The fact that a portion of the third panel (130) has been withdrawn may mean that the third panel (130) has not been withdrawn to its maximum extent. Therefore, contrary to its literal meaning, the fact that a portion of the third panel (130) has been withdrawn may include a state in which the third panel (130) has not been withdrawn.

[0107] A panel support member (131) that supports the third panel (130) may be provided below the third panel (130). As shown in FIG. 18, the third panel (130) is positioned above the panel support member (131), so a step equal to the thickness of the third panel (130) exists between the third panel (130) and the panel support member (131).

[0108] A first sliding case (70) (Fig. 23), a second sliding case (80) (Fig. 23), and a third case (132) may be provided below the third panel (130) and the panel support member (131). The first sliding case (70) may be provided to be pulled out from the inside of the first case (111). The second sliding case (80) may be provided to be pulled out from the inside of the second case (121). The first sliding case (70) may be arranged below one side of the panel support member (131). The second sliding case (80) may be arranged below the other side of the panel support member (131). The third case (132) may be arranged between the first sliding case (70) and the second sliding case (80). On one side of the third case (132), a first sliding case (70) may be provided so as to be able to slide relative to the third case (132), and on the other side of the third case (132), a second sliding case (80) may be provided so as to be able to slide relative to the third case (132).

[0109] Referring to Fig. 19, a boss portion (133) may be provided in a third case (132) disposed below a panel support portion (131). The boss portion (133) may be formed by protruding upward from the lower surface of the third case (132). The boss portion (133) may refer to a rib having an approximately circular shape. An elastic member (134) may be disposed on the inside of the boss portion (133). The boss portion (133) may accommodate the elastic member (134) so ​​that the elastic member (134) does not move in the left-right direction.

[0110] A movable member (135) may be provided on the upper side of the boss (133) and the elastic member (134). The movable member (135) may be provided to move upward or downward by the elastic force of the elastic member (134). The lower end of the elastic member (134) may be arranged to contact the lower surface of the third case (132), and the upper end of the elastic member (134) may be arranged to contact the movable member (135). A panel support member (131) may be arranged on the movable member (135). By this arrangement, when the movable member (135) moves upward and downward by the elastic force of the elastic member (134), the panel support member (131) may move upward and downward together with the movable member (135).

[0111] Referring to FIG. 19, when a portion of the third panel (130) is withdrawn, the elastic member (134) can be compressed in the vertical direction. In one example, the elastic member can include a compression spring that accumulates elastic force by being compressed in one direction.

[0112] The elastic member (134) accumulates elastic force, and at least a portion of the movable member (135) may be in contact with the lower surface of the third case (132). Alternatively, the movable member (135) may not be in contact with the lower surface of the third case (132), but the distance between the movable member (135) and the lower surface of the third case (132) may be minimized.

[0113] Referring to Fig. 21, when the third panel (130) is fully extended, the third panel (130) can be placed on the same surface as the first panel (110). The third panel (130) can be connected to the first panel (110) without a step. As the third panel (130) moves upward by the elastic force of the elastic member (134), the third panel (130) and the first panel (110) can be connected without a step. The upward movement of the third panel (130) will be described later.

[0114] When the third panel (130) is fully extended, the third panel (130) can be connected without a step not only to the first panel (110) but also to the second panel (120). Accordingly, the first panel (110), the second panel (120), and the third panel (130) can be arranged on a single plane. As a result, the first panel (110), the second panel (120), and the third panel (130) can appear as if they are a single panel, providing a sense of unity.

[0115] Referring to Fig. 22, when the third panel (130) is fully extended, the third panel (130) can move upward by a predetermined distance (g). As the third panel (130) moves upward by the predetermined distance (g), the step between the third panel (130) and the first panel (110) can be eliminated, as described above. Similarly, the step between the third panel (130) and the second panel (120) can be eliminated. The predetermined distance (g) described above can correspond to the thickness of the third panel (130) or the step between the third panel (130) and the panel support (131).

[0116] When the third panel (130) is fully extended, the third panel (130) positioned below the first panel (110) is extended, and a panel support member (131) can be positioned below the first panel (110). A predetermined step exists in the vertical direction between the panel support member (131) and the third panel (130). Since the third panel (130) is not positioned below the first panel (110), a gap exists between the panel support member (131) and the first panel (110). When a gap occurs between the panel support member (131) and the first panel (110), the movable member (135) can move upward by a predetermined distance (g) due to the elastic force of the elastic member (134). In conjunction with the upward movement of the movable member (135), the panel support member (131) moves upward, and the gap between the panel support member (131) and the first panel (110) is eliminated due to the upward movement of the panel support member (131). In other words, at least a portion of the panel support member (131) comes into contact with the lower surface of the first panel (110). Similarly, at least a portion of the panel support member (131) comes into contact with the lower surface of the second panel (120). As a result, the step between the first panel (110) and the third panel (130) can be eliminated. Similarly, the step between the second panel (120) and the third panel (130) can be eliminated.

[0117] Fig. 23 illustrates the solar cell illustrated in Fig. 20 from a different angle. Fig. 24 is a cross-sectional perspective view of G in Fig. 23.

[0118] Referring to FIGS. 23 and 24, a structure in which the movement range of the first sliding case (70) and the second sliding case (80) is limited when the third panel (130) is pulled out to its maximum is described.

[0119] Referring to Fig. 23, when the third panel (130) is fully extended, the first case (111) may be placed on one side of the first sliding case (70), and the third case (132) may be placed on the other side of the first sliding case (70). Similarly, the second case (121) may be placed on one side of the second sliding case (80), and the third case (132) may be placed on the other side of the second sliding case (80).

[0120] A first sliding stopper (132a) and a second sliding stopper (132b) may be provided on the lower surface of the third case (132).

[0121] The first sliding stopper (132a) can limit the movement range of the third case (132) with respect to the first sliding case (70). The first sliding stopper (132a) can be arranged to slide along a first case hole (71) formed on the lower surface of the first sliding case (70). When the first sliding stopper (132a) moves to one end of the first case hole (71), the movement of the first sliding stopper (132a) is limited, and thus the movement of the third case (132) can be limited. Therefore, the movement range of the third case (132) with respect to the first sliding case (70) can be limited to the length range of the first case hole (71) formed in the first sliding case (70).

[0122] The second sliding stopper (132b) can limit the movement range of the third case (132) with respect to the second sliding case (80). The second sliding stopper (132b) can be arranged to slide along a second case hole (81) formed on the lower surface of the second sliding case (80). When the second sliding stopper (132b) moves to one end of the second case hole (81), the movement of the second sliding stopper (132b) is limited, and thus the movement of the third case (132) can be limited. Therefore, the movement range of the third case (132) with respect to the second sliding case (80) can be limited to the length range of the second case hole (81) formed in the second sliding case (80).

[0123] Referring to FIGS. 23 and 24, the range of movement of the first sliding case (70) relative to the first case (111) can be limited by the limiting projection (111a) of the first case (111) and the step portion (70a) of the first sliding case (70). Although the second case (121) and the second sliding case (80) are not illustrated in the drawing, the same structure can be applied.

[0124] As described above, the first sliding case (70) can be introduced into the inside of the first case (111), and at least a portion of the first sliding case (70) can be withdrawn from the inside of the first case (111). A limiting projection (111a) can be provided on a side surface inside the first case (111). The limiting projection (111a) can be provided on one side surface inside the first case (111) and the other side surface inside the first case (111), respectively. A step portion (70a) can be provided on the side surface of the first sliding case (70) so as to engage with the limiting projection (111a). Like the limiting projection (111a), the step portion (70a) can be provided on each of both side surfaces of the first sliding case (70). When the step portion (70a) engages with the limiting projection (111a), the movement of the first sliding case (70) can be restricted. In other words, when the step portion (70a) engages with the limiting projection (111a), the first sliding case (70) can no longer be pulled out from the first case (111). When the first sliding case (70) is pulled out from the first case (111) to the maximum extent, the step portion (70a) and the limiting projection (111a) can be engaged.

[0125] FIG. 25 illustrates a display according to one embodiment, with the solar cell and bracket separated.

[0126] Referring to FIG. 1 and FIG. 25, a bracket (20) may be coupled between the display (10) and the solar cell (100) to hang the display (10) and the solar cell (100) from the ceiling or structure using a wire (30).

[0127] The bracket (20) may include a wire hook (23) provided to hook a wire (30). The bracket (20) may include a bracket hole (22) provided to allow a connecting member (40) to pass through. In addition, the bracket (20) may include a connecting hole (21) provided to insert a first power supply unit (141) or a second power supply unit (142). The connecting hole (21) may have a width greater than that of the first power supply unit (141) and the second power supply unit (142) so that the first power supply unit (141) or the second power supply unit (142) may be inserted therein. In addition, the connecting hole (21) may be provided in a semicircular or semicircular arch shape.

[0128] After the bracket (20) is placed between the back of the display (10) and the first coupling portion (140), the coupling member (40) passes through the first coupling hole (143) of the first coupling portion (140) and the bracket hole (22) and is coupled to the second coupling hole (14) formed on the back of the display (10), thereby fixing the bracket (20) between the display (10) and the first coupling portion (140).

[0129] When the bracket (20) is fixed between the display (10) and the first connecting portion (140), the wire (30) can be hung on the wire hook (23) of the bracket (20) to hang the display (10) and the solar cell (100) from the ceiling or other structures.

[0130] Although only the bracket (20) positioned between the first connecting portion (140) and the display (10) is illustrated in FIG. 25, the brackets (20) may be provided as a pair. The remaining bracket may be fixed between the second connecting portion (150) and the rear surface of the display (10). The remaining bracket may be provided in a symmetrical structure, identical to the bracket (20).

[0131] According to one embodiment, a display device includes a display having a rectangular shape, a first side and a second side longer than the first side, the display including a connecting portion provided on a rear surface thereof, and a solar cell detachably coupled to the display and configured to supply power to the display. The solar cell includes a solar panel configured to convert solar light energy into electrical energy, and a coupling portion coupled to the display, the coupling portion including a first power supply portion provided on a first surface of the coupling portion, and a second power supply portion provided on a second surface opposite the first surface. When the solar cell is coupled to the display such that the solar panel is arranged parallel to the first surface, the first surface is arranged toward the rear surface of the display such that the first power supply portion is connected to the connecting portion. When the solar cell is coupled to the display such that the solar panel is arranged parallel to the second surface, the second surface is arranged toward the rear surface of the display such that the second power supply portion is connected to the connecting portion.

[0132] The above solar panel may include a first panel, a second panel, and a third panel.

[0133] The third panel may be provided so that it can be inserted into the inside of the first panel and the second panel so that the third panel is not exposed to the outside.

[0134] When the solar cell is coupled to the display so that the solar panel is arranged parallel to the first side, the third panel can be introduced into the inside of the first panel and the second panel so that the length of the solar panel corresponds to the length of the first side.

[0135] When the solar cell is coupled to the display so that the solar panel is arranged parallel to the second side, the third panel can be pulled out from the inside of the first panel and the second panel so that the length of the solar panel corresponds to the length of the second side.

[0136] When the third panel is pulled out from the inside of the first panel and the second panel, the third panel may be arranged to move a predetermined distance in the first direction so that no step is created in the first direction with respect to the first panel and the second panel.

[0137] The solar cell may further include a sliding case that is pulled out from the inside of the first panel and the second panel together with the third panel to increase the pull-out distance of the third panel when the third panel is pulled out from the inside of the first panel and the second panel.

[0138] The solar cell may further include an elastic member arranged between the third panel and the sliding case and configured to elastically bias the third panel in the first direction.

[0139] The above solar panel may be arranged to be movable in a direction perpendicular to the first side and the second side, respectively.

[0140] The solar cell may further include a first height adjustment member that is provided to be withdrawable from the first coupling portion, and a second height adjustment member that is provided to be withdrawable from the first coupling portion when the first height adjustment member is withdrawn from the first coupling portion.

[0141] The solar cell may further include a hinge member connected to one end of the first height adjusting member so as to be rotatable relative to one end of the first height adjusting member.

[0142] A first shaft that rotatably connects the first height adjustment member and the hinge member may be provided at one end of the hinge member.

[0143] A second shaft may be provided at the other end of the hinge member to rotatably connect the solar panel and the hinge member.

[0144] The hinge member may be provided to be movable relative to the solar panel such that one end of the hinge member is positioned at one end of the solar panel or the other end of the hinge member is positioned at one end of the solar panel.

[0145] When one end of the hinge member is positioned at one end of the solar panel, the solar panel can be provided to be tiltable to the display by rotating around the first shaft as a rotation axis.

[0146] When the other end of the hinge member is positioned at one end of the solar panel, the solar panel can be arranged to be arranged parallel to the display by rotating around the second shaft as a rotation axis.

[0147] When the first power supply unit is connected to the connecting unit, the first power supply unit and the connecting unit may correspond to each other at the first position.

[0148] When the second power supply unit is connected to the connecting unit, the second power supply unit and the connecting unit may correspond to each other at a second position different from the first position.

[0149] The above connecting portion may be provided so as to be connectable to the first power supply portion and the second power supply portion in a predetermined area including the first position and the second position.

[0150] The display device may further include a bracket arranged to be placed between the solar cell and the display when the solar cell is coupled to the display.

[0151] When the bracket is fixed between the display and the solar cell, the display and the solar cell can be hung from a ceiling or other structure by connecting a wire to the bracket.

[0152] According to the invention, a solar cell coupled to a display and configured to supply power to the display and a display device including the same can be provided.

[0153] According to the idea of ​​the present disclosure, a solar cell capable of being coupled to each of the long and short sides of a display and capable of being extended and reduced in length to correspond to the length of each side, and a display device including the same can be provided.

[0154] According to the idea of ​​the present disclosure, a solar cell capable of being coupled to each of the long side and short side of a display in a single structure and a display device including the same can be provided.

[0155] The above illustrates and describes specific embodiments. However, the invention is not limited to the above-described embodiments, and those skilled in the art will readily appreciate that various modifications and implementations can be made without departing from the spirit and scope of the invention as set forth in the claims below.

Claims

1. A display having a square shape having a first side and a second side longer than the first side, and including a connecting part provided on the rear side; and A solar cell detachably coupled to the display and configured to supply power to the display; The above solar cell, Solar panels are designed to convert sunlight energy into electrical energy, A coupling part provided to be coupled to the display, comprising a coupling part including a first power supply part provided on a first surface of the coupling part, and a second power supply part provided on a second surface opposite to the first surface, When the solar cell is coupled to the display so that the solar panel is arranged parallel to the first side, the first side is arranged toward the rear of the display so that the first power supply unit is connected to the connecting unit, A display device in which the second side is arranged toward the rear of the display so that the second power supply unit is connected to the connecting unit when the solar cell is coupled to the display so that the solar panel is arranged parallel to the second side.

2. In paragraph 1, The above solar panel includes a first panel, a second panel, and a third panel, A display device in which the third panel is provided so as to be retractable into the inside of the first panel and the second panel so that the third panel is not exposed to the outside.

3. In paragraph 2, When the solar cell is coupled to the display so that the solar panel is arranged parallel to the first side, The third panel is a display device that is inserted into the inside of the first panel and the second panel so that the length of the solar panel corresponds to the length of the first side.

4. In paragraph 2, When the solar cell is coupled to the display so that the solar panel is arranged parallel to the second side, The third panel is a display device that is extended from the inside of the first panel and the second panel so that the length of the solar panel corresponds to the length of the second side.

5. In paragraph 2, A display device in which, when the third panel is pulled out from the inside of the first panel and the second panel, the third panel is arranged to move a predetermined distance in the first direction so that no step is created in the first direction with respect to the first panel and the second panel.

6. In paragraph 5, The above solar cell, A display device further comprising a sliding case that is pulled out from the inside of the first panel and the second panel together with the third panel to increase the pull-out distance of the third panel when the third panel is pulled out from the inside of the first panel and the second panel.

7. In paragraph 6, The above solar cell, A display device further comprising an elastic member arranged between the third panel and the sliding case and configured to elastically bias the third panel in the first direction.

8. In paragraph 1, A display device in which the solar panel is arranged to be movable in a direction perpendicular to the first side and the second side, respectively.

9. In paragraph 1, The above solar cell, A first height adjustment member that is provided so as to be withdrawable from the first connecting portion, A display device further comprising a second height adjustment member that is provided to be withdrawable from the first coupling member when the first height adjustment member is withdrawn from the first coupling member.

10. In paragraph 9, The solar cell further includes a hinge member connected to one end of the first height adjusting member so as to be rotatable relative to one end of the first height adjusting member, A first shaft is provided at one end of the hinge member to rotatably connect the first height adjustment member and the hinge member, A display device in which a second shaft is provided at the other end of the hinge member to rotatably connect the solar panel and the hinge member.

11. In paragraph 10, A display device in which the hinge member is provided to be movable relative to the solar panel such that one end of the hinge member is positioned at one end of the solar panel or the other end of the hinge member is positioned at one end of the solar panel.

12. In paragraph 11, When one end of the above hinge member is located at one end of the above solar panel, A display device in which the solar panel is provided to be tiltable on the display by rotating the first shaft as a rotation axis.

13. In paragraph 11, When the other end of the above hinge member is located at one end of the above solar panel, A display device in which the solar panel is arranged to be arranged parallel to the display by rotating around the second shaft as a rotation axis.

14. In paragraph 1, When the first power supply unit is connected to the connecting unit, the first power supply unit and the connecting unit correspond to each other at the first position, When the second power supply unit is connected to the connecting unit, the second power supply unit and the connecting unit correspond to each other at a second position different from the first position, A display device in which the connecting portion is provided so as to be connectable to the first power supply portion and the second power supply portion in a predetermined area including the first position and the second position.

15. In paragraph 1, Further comprising a bracket arranged to be placed between the solar cell and the display when the solar cell is coupled to the display; A display device capable of hanging the display and the solar cell from a ceiling or other structure by connecting a wire to the bracket when the bracket is fixed between the display and the solar cell.

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