Blind Display

Abstract

To provide a blind display that has high glare protection and light control properties, can be made light and thinned, and has high design properties.SOLUTION: Respective slats 2 are shaped in a rectangular phase body. Five slats 2 are lined up vertically and 25 light emitting bodies 3 are mounted on the respective slats 2. An upper-stage slat 4 and a lower-stage slat 5 have an overlapped part 6 that overlaps in a lower part of the upper-stage slat 4 and in an upper part of the lower-stage slat 5. In the overlapped part 6 at a slat angle of 15°, the upper-stage slat 4 is positioned in an outdoor side 7 as compared with the lower-stage slat 5. The light emitting bodies 3 are provided on a surface of the slats 2 in an indoor side 8. Angle adjustment of the slats 2 is performed by vertically moving a ladder cord 13 connected to the slats 2. Upper / lower movement of the ladder cord 13 is performed by rotation of a ladder cord pole 12. Folding of the slats 2 for pulling the slats 2 up to an area close to a head box 9 is performed by a rotary operation of an elevation cord belt 11.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a blind display that displays video information and character and graphic information by providing a group of electronic components including light emitters on the slats that make up the blind. [Background technology]

[0002] In the field of window decorations attached to the windows of buildings, blinds, which are one of the window decoration elements, have the following features: 1) they use slats to block external light from entering the room, 2) the angle of the slats is adjusted to control the amount of external light entering the room, 3) the angle of the slats is adjusted to hide the interior from the view of people outside, and 4) the slats can be folded into a head box, allowing a panoramic view of the outside scenery and making the blinds compact and easy to transport when moved. These features have made blinds an indispensable element for buildings and homes, and they are in widespread use all over the world. If light-emitting devices with display functions could be installed on the slats of blinds, which are widespread around the world, an unprecedented form of information transmission media could be realized, and new information services could be expected, but at present there are no blinds equipped with light-emitting devices. Against this background, ideas for equipping blinds with display functions have been proposed in the past, but they have not yet been put to practical use.

[0003] For example, the blinds disclosed in Patent Document 1 have the functions of blocking light and adjusting the light, and further introduces the idea of ​​providing light-emitting elements in the blinds' slats to project video information and text, graphic, and other image information. However, there are the following problems with applying the technology introduced in Patent Document 1 to blinds, which are window decorations that are widespread all over the world, and the technology cannot be applied. The blinds disclosed in Patent Document 1 are structured so that light emitters are provided on the outdoor side of the slats, and so when the slats are rotated in the direction that external light passes between the slats, the light emitters are directed upward (toward the ceiling or sky), which causes the problem that the light emitters become invisible if the viewer is below the position of the blinds.Furthermore, if the angle range of the slats is limited to the point where the light emitters are visible, there arises the problem that light blocking and dimming control become insufficient.

[0004] Furthermore, since the LED elements are mounted on one side of the printed circuit board corresponding to the slats and the LED driver elements are mounted on the other side, the number of electronic components increases, which creates problems in terms of weight reduction, thinness, and design. Regarding weight reduction, if heavy slats are used for blinds as window decorations, the thin slats can cause the slats to bend. Also, since blinds as window decorations are attached to windows in buildings, if the blinds are heavy, they cannot be safely attached to the window frames. Regarding thinning, when thick slats such as those disclosed in Patent Document 1 are folded, the total thickness increases, and the head box that stores the slats at the top of the blind becomes larger, which means that the head box takes up window area, resulting in problems such as a reduction in the blind's light-blocking and dimming effects and a loss of design.

[0005] With regard to design, the blinds disclosed in Patent Document 1 have the problem that the electronic components on the slat surfaces are completely visible, which impairs the design, and because the slats themselves are heavy, a frame is provided to hold the slats in place and the slats are attached to it. Therefore, if this type of structure is applied to blinds used as window decorations, the width of the frame is created on both ends of the blind, and when multiple blinds used as window decorations are lined up horizontally, the width of the frame prevents light blocking or dimming, and the width of the frame impairs the original design of the blind. The blind disclosed in Patent Document 2 also has the same problems as the blind disclosed in Patent Document 1.

[0006] Also known is a blind with multiple LED displays installed on one side of the slats (see Patent Document 3). This can display predetermined images as moving or still images and can be used as a communication medium to convey various information. However, in the blinds disclosed in Patent Document 3, multiple LED displays are installed on at least one of the surfaces of the slats, but no configuration is disclosed for installing LED displays on the indoor side of the slats. On the other hand, in a configuration where LED displays are installed on the outdoor side of the slats, as in Patent Document 1, when the slats are rotated, the light emitters face upward, which creates a problem where the light emitters become invisible to viewers who are below the position of the blinds. Furthermore, in the blinds disclosed in Patent Document 3, an electronic control module installed in the head box controls a high-brightness LED display, which adjusts the light color of the LED elements on the slats and changes the light color over time to display it. However, to achieve this, lead wires are required for the number of LED elements, which creates the problem of an unrealistically large wiring scale. Furthermore, in order to ensure the aesthetic appeal of the blinds, it is important that the power and signal lines do not extend beyond the vertical (folding) ends of each slat, but the blinds disclosed in Patent Document 3 have the problem that the mechanism for preventing the ends from extending beyond is unclear. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Japanese Patent Application Publication No. 2018-55011 [Patent Document 2] Patent No. 3977837 [Patent Document 3] Japanese Patent Application Publication No. 2018-162617 Summary of the Invention [Problem to be solved by the invention]

[0008] As mentioned above, when the blind technologies disclosed in Patent Documents 1 to 3 are applied to blinds currently used around the world as window decorations, problems arise such as a) insufficient light blocking and light control, b) weight reduction (the slats are heavy), c) thinness (the slats are thick), and d) design (the design is impaired due to the visible electronic components on the slat surface and the presence of the frame). In view of the above circumstances, an object of the present invention is to provide a blind display that has high light blocking and light control capabilities, is lightweight and thin, and has a high design quality. [Means for solving the problem]

[0009] To solve the above problems, the blind display of the present invention is a blind with a structure in which the lower part of the upper slats overlaps the upper part of the lower slats when shading, with the upper part of the lower slats at the overlapping part facing indoors relative to the lower part of the upper slats, and a group of electronic components including light emitters are placed on the indoor-facing surface of each slat. This allows for display over a wide field of view while maintaining excellent light-blocking and dimming capabilities. Furthermore, because the light emitters are located on the indoor side when shading, degradation of the light emitters due to direct sunlight can be prevented.

[0010] In the blind display of the present invention, the light emitters are integrated with LED chips that emit light in at least one of red, blue, and green, and a control unit that controls the light emission of the LED chips, and it is preferable that a plurality of light emitters are arranged in the longitudinal direction on the surface of the slats, with each slat being arranged in parallel, thereby realizing thin and lightweight slats and providing a lightweight and slim blind display.

[0011] In the blind display of the present invention, it is preferable that, in the arrangement order starting from the base slat, for odd-numbered slats, the display signal moves from the light emitter at one end to the light emitter at the other end, and for even-numbered slats, the display signal moves from the light emitter in the opposite direction to the odd-numbered slats. This makes it possible to provide a lightweight and thin blind display that can be displayed with simple electrical wiring.

[0012] The blind display of the present invention may have each slat configured as a single flat body, which allows for a wide viewing range while maintaining excellent light blocking and dimming capabilities.

[0013] In the blind display of the present invention, each slat has a polyhedral shape made up of one or more flat bodies, and the angles on the two-dimensional plane at the boundary between one flat body and another flat body in the series of flat bodies may be different, which allows for a wide range of viewing angle while maintaining excellent light blocking and dimming functions.

[0014] In the blind display of the present invention, each slat may be curved, which allows for a wide viewing range while maintaining excellent light blocking and dimming capabilities.

[0015] In the blind display of the present invention, the base material of the slats is preferably made of wood, aluminum, or plastic, which allows for thin and lightweight slats to be realized, thereby providing a lightweight and slim blind display.

[0016] In the blind display of the present invention, it is preferable that the power supply lines and display signal lines that supply power to the light emitters provided on the surface of each slat are connected to the power supply terminals and display signal terminals on the adjacent slats in sequence through through holes provided in each slat, which allows for simple electrical wiring, resulting in the realization of thin and lightweight slats and the provision of a lightweight and thin blind display.

[0017] In the blind display of the present invention, the power supply lines and display signal lines of the upper slats are preferably connected from the back side of the upper slats through through holes provided in each slat to the power supply terminals and display signal terminals provided on the front side of the lower slats, which allows for simple electrical wiring and, as a result, makes it possible to realize thin and lightweight slats and provide a lightweight and thin blind display.

[0018] In the blind display of the present invention, it is preferable that the power supply line and the signal line do not protrude beyond both ends of each slat, thereby ensuring the design of the blind as a window decoration.

[0019] In the blind display of the present invention, it is preferable that the electronic components, including the light emitters, provided on the surfaces of the slats are covered with an insulating sheet, which eliminates friction between the slats and prevents scratches on the slat surfaces.

[0020] In the blind display of the present invention, the insulating sheet may have a transmittance of 10% or more, which reduces the presence of electronic components, including light emitters, mounted on the slats and ensures the aesthetic appeal of the blind as a window decoration.

[0021] In the blind display of the present invention, the insulating sheet may have diffusive properties, which reduces the presence of electronic components, including light emitters, mounted on the slats and ensures the aesthetic appeal of the blind as a window decoration.

[0022] In the blind display of the present invention, the electronic components including the light emitters provided on the surfaces of the slats may be fixed to the slats using fixing pins or adhesive, thereby preventing the electronic components including the light emitters provided on the slats from peeling off. [Effects of the Invention]

[0023] The present invention realizes a blind display with a display function while maintaining the function of blinds as window decorations used all over the world, and therefore has the effect of making it possible to easily project video information and character, graphic, and image information to many people all over the world, thereby enabling the provision of new information services. [Brief explanation of the drawings]

[0024] [Figure 1] An explanatory diagram of the blind display of the present invention as seen from the indoor side. [Figure 2] Cross-sectional view of a slat for the slat angle of the present invention [Figure 3] Schematic diagram of the light emitter of the present invention. [Figure 4] A diagram showing the configuration of a light-emitting substrate constructed using four light-emitting elements of the present invention. [Figure 5] Timing chart of display data applied to the input terminal of the control unit of the present invention [Figure 6] A diagram showing four light-emitting substrates of the present invention arranged vertically. [Figure 7] Schematic diagram of odd-numbered slats with light emitters and even-numbered slats with light emitters according to the present invention. [Figure 8] An explanatory diagram of the blind display of the present invention as seen from the outside. [Figure 9] Cross-sectional view of the slats relative to the slat angle in the polyhedron of the present invention [Figure 10] Cross-sectional view of the slats with respect to the slat angle in the curved surface body of the present invention [Figure 11] FIG. 1 shows the wiring of power supply lines and display signal lines according to the present invention. [Figure 12] FIG. 10 is a diagram showing the wiring of power supply lines and display signal lines in odd-numbered slats and even-numbered slats of the present invention. [Figure 13] FIG. 1 shows the folding state of the blind display of the present invention. [Figure 14] A diagram showing a light-emitting body substrate cover provided on a slat on which a light-emitting body of the present invention is mounted. [Figure 15]FIG. 10 is a diagram showing pins for fixing the light-emitting substrate used in the blind display of the present invention. [Figure 16] Image of the blind display of the present invention installed in a building DETAILED DESCRIPTION OF THE INVENTION

[0025] An example of an embodiment of the present invention will be described in detail below with reference to the drawings. Note that the scope of the present invention is not limited to the following examples and illustrated examples, and many modifications and variations are possible. [Example]

[0026] The blind display 1 of the present invention will be described with reference to FIGS. 1 and 2. FIG. FIG. 1 shows an explanatory diagram of a blind display 1 as viewed from the indoor side 8. Figure 1(1) is a front view seen from the indoor side 8 (front view of a slat angle of 15° in Figure 2). A slat angle of 15° blocks the rear view from the front. Figure 1(2) is a cross-sectional view taken along the line AA in the front view. Each slat 2 is a rectangular flat body. Figure 1 shows an example in which five slats 2 are arranged vertically, and each slat 2 is equipped with 25 light-emitting elements 3. Figure 1 shows an example in which each slat 2 is equipped with 25 light-emitting elements 3 and there are five slats, but these numbers are not particularly limited, and the number of light-emitting elements 3 and the number of slats 2 can be any. As shown in Figure 1(2), the upper slats 4 and the lower slats 5 have an overlapping portion 6 where the lower part of the upper slat 4 overlaps with the upper part of the lower slat 5. At the overlapping portion 6 when the slat angle is 15°, the upper slats 4 are positioned closer to the outdoor side 7 than the lower slats 5, so that bright light (e.g. sunlight) from the outdoor side 7 entering through the gaps between the slats 2 can be blocked. This allows for the realization of a blind display 1 with excellent light-blocking performance. The light emitters 3 in the blind display 1 are provided on the surfaces of the slats 2 on the indoor side 8. The angle of the slats 2 is adjusted by moving the ladder cords 13 connected to the slats 2 up and down, allowing the blind display 1 to adjust the brightness or block out light. The ladder cords 13 are moved up and down by rotating the ladder cord poles 12. The slats 2 are folded up to the vicinity of the head box 9 by rotating the lifting cord belts 11.

[0027] FIG. 2 is a cross-sectional view of the slat 2 with the illuminant 3 mounted thereon at seven angles 10 between 15° and 165°. The left side of the figure is the indoor side 8, and the right side is the outdoor side 7. By rotating the ladder cord pole 12, the slat angle 10 can be adjusted from 15° to 165°. For example, if the blind display 1 is installed on the ninth floor of a building, the light from the light-emitting element 3 will begin to be visible from the street directly below the building when the slat angle is around 90°. When the slat angle is around 15°, it is possible to block out external light, so the information displayed on the blind display 1 has high contrast and can be seen clearly from the indoor side 8. It can also be used as lighting with any color.

[0028] FIG. 3 is a diagram showing the configuration of the light emitter 3. The light emitter 3 is configured by mounting a red LED 22, a blue LED 23, a green LED 24, and a control unit 25 on a package substrate 21. Figure 3(1) is a front view, Figure 3(2) is an AA cross-sectional view of the front view, and Figure 3(3) is a BB cross-sectional view of the front view. As shown in the front view of Figure 3(1), a group of three LEDs, a red LED 22, a blue LED 23, and a green LED 24, corresponds to one pixel, which is the smallest unit that makes up the display screen. In this embodiment, the light emitter 3 is an LED (model number: WS2812B) manufactured by WorldSemi (WorldSemi Technology Co., Ltd.). When a display signal 31 sent from a display signal generator 34 (shown in FIG. 4) is applied to an input terminal 27 of the light emitter 3, the control unit 25 performs processing corresponding to a predetermined signal protocol, thereby sending a light emission signal 28 to each LED, and each LED lights up with a brightness corresponding to the information in the light emission signal 28. A signal from an output terminal 29 of the control unit 25 is applied as a display signal to an input terminal (not shown) of the next light emitter 3.

[0029] FIG. 4 shows a configuration diagram of a light emitter substrate 30 configured using four light emitters 3. FIG. 5 is a timing chart 40 of display data given to the input terminals of the control units 25 (a1 to a4) provided in the four light emitters 3 shown in FIG. 4 and 5, a display signal 31 sent from a display signal generator 34 is applied to an input terminal 27(a1) of a control unit 25(a1) through an input terminal 32 of a light emitter substrate 30. The display signal 31 sent from the display signal generator 34 is, in chronological order, pixel data 45 of the control unit 25(a1), pixel data 46 of the control unit 25(a2), pixel data 47 of the control unit 25(a3), and pixel data 48 of the control unit 25(a4). The pixel data 45 of the control unit 25(a1), the pixel data 46 of the control unit 25(a2), the pixel data 47 of the control unit 25(a3), and the pixel data 48 of the control unit 25(a4) each have 8 bits of information for brightness information of the green LED 24, the blue LED 23, and the red LED 22, for a total of 24 bits of information. The brightness information of each LED can be expressed in 256 levels, and the color information of the three colors green, blue, and red (256 cubed) can be expressed in 16 million colors. The a1 signal 41 applied to the input terminal 27(a1) of the control unit 25(a1) takes in only the pixel data 45 of the control unit 25(a1) in the control unit 25(a1), and sends it as light-emitting information to the green LED 24, the blue LED 23, and the red LED 22 as the light-emitting signal 28 shown in Figure 3(1). The output terminal 29 of the control unit 25(a1) sends the a2 signal 42 to the next-stage control unit 25(a2), but the pixel data 45 of the control unit 25(a1) has already been processed and therefore has been removed from the a2 signal 42.

[0030] Similarly, the control units 25(a1), 25(a2), 25(a3), and 25(a4) of the four light emitters 3 individually receive pixel data 45 from control unit 25(a1), pixel data 46 from control unit 25(a2), pixel data 47 from control unit 25(a3), and pixel data 48 from control unit 25(a4), and then provide display signals to the green LED 24, blue LED 23, and red LED 22, causing the green LED 24, blue LED 23, and red LED 22 to light up with brightness corresponding to the display signals. In this way, the four pixel data, pixel data 45 from control unit 25(a1), pixel data 46 from control unit 25(a2), pixel data 47 from control unit 25(a3), and pixel data 48 from control unit 25(a4), form a single block of cycle data 49. If the screen to be displayed is a still image, the display signal generator 34 can simply send the same cycle data 49 repeatedly, and if a moving image is to be displayed, the display signal generator 34 can simply provide the light-emitting substrate 30 with sequentially changed cycle data 49. In this way, by matching the number of WS2812Bs used corresponding to the light emitter 3 (four in Figure 4) with the number of pixel data constituting the cycle data 49 transmitted from the display signal generator 34 (four in Figure 5), the light emitter 3 can properly display the intended information.

[0031] FIG. 6 is a diagram showing a configuration in which four light-emitting substrates 30 shown in FIG. 4 are arranged in the vertical direction. As explained in Figures 4 and 5, by making the number of light emitters 3 used (four in Figure 4) the same as the number of pixel data constituting the cycle data 49 transmitted from the display signal generator 34 (four in Figure 5), the light emitter board 30 can properly display the intended information. In Figure 6, since the number of light emitters 3 used is 16, proper display is possible by also setting the number of pixel data input to the input terminal 27 of the control unit 25 (a1) of the light emitter 3 to 16.

[0032] FIG. 7 shows a configuration diagram of odd-numbered luminous body-mounted slats 50 and even-numbered luminous body-mounted slats 51, each having 25 luminous bodies 3 mounted on the slats 2. When odd-numbered luminous-element-equipped slats 50 are connected to even-numbered luminous-element-equipped slats 51, the total number of luminous elements 3 becomes 50. The flow of signals to the 50 luminous elements 3 is as follows: when an input display signal (1) 52 is applied to the input terminal of the luminous element 3 on the left side of the odd-numbered luminous-element-equipped slat 50, an output display signal (1) 53 is output to the output terminal of the luminous element 3 on the right side of the odd-numbered luminous-element-equipped slat 50. This output display signal (1) 53 is connected to the input terminal of the luminous element 3 on the right side of the even-numbered luminous-element-equipped slat 51 and applied as an input display signal (2) 54. As a result, an output display signal (2) 55 is output to the output terminal of the luminous element 3 on the left side of the even-numbered luminous-element-equipped slat 51, which is used as the input display signal for the odd-numbered luminous-element-equipped slat in the next row. Using a similar slat configuration, display signals are applied to all of the luminous element-equipped slats that make up the blind display 1, allowing the blind display 1 to properly display the intended information. In Figure 7, the total number of light-emitting elements 3 used in the odd-numbered light-emitting element-equipped slats 50 and the even-numbered light-emitting element-equipped slats 51 is 50. In this case, if the number of pixel data constituting the cycle data 49 transmitted from the display signal generator 34 is set to 50 as described in Figure 6, the 50 light-emitting elements 3 can properly display the intended information.

[0033] FIG. 8 shows an explanatory diagram of the blind display 1 of the present invention as viewed from the outdoor side 7. Figure 8(1) is a perspective view seen from the outdoor side 7 (a perspective view of a slat angle of 120° in Figure 2). With a slat angle of 120°, about half of the rear (indoor) scenery can be seen from the front. Figure 8(2) is a cross-sectional view taken along the line AA shown in Figure 8(1). Figure 8 shows an example in which five slats 2 are arranged vertically, as in Figure 1, and each slat 2 is equipped with the same 25 light emitters 3. Fig. 8 is a diagram showing the slat angle of approximately 120° shown in Fig. 2, but once the viewing position on the outdoor side 7 is determined, the slat angle 10 can be adjusted by operating the ladder cord pole 12, so that the display quality of the blind display 1 at the viewing position can be made easy to see by operating the ladder cord pole 12. In the example of Fig. 2, for outdoor display of the blind display 1, the slat angle can be adjusted to 90° to 165°. For blinds that can be set to a 180° slat angle, the slat angle can be set to 90° to 180°. For example, if the blind display 1 is installed on the ninth floor of a building, a slat angle of about 90° is preferable when viewed from the road directly below the building, and if the viewing position is far away from the building, a larger slat angle 10, such as 165°, is preferable. Also, if the blind display 1 can be set to a slat angle of 180°, the slat angle may be set to 180°.

[0034] FIG. 9 shows cross-sectional views of the slats 62 on which the light emitters 3 are mounted, with the slat angle 10 changed from 0° to 165°. The slat 62 is a polyhedron made up of two planes, and the angle on the two-dimensional plane at the joint between one plane and the other plane of the continuous planes is different. The left side of the figure is the indoor side 8, and the right side is the outdoor side 7. Each slat 62 is made up of a flat body A60 and a flat body B61. With this type of slat shape, at a slat angle of 0°, the tip of the flat body A60 of the lower slat 64 overlaps with the bottom of the upper slat 63, making it possible to block bright light from the outdoor side 7 that enters through the gaps between the slats 62. This makes it possible to realize a blind display 1 with excellent light-blocking performance.

[0035] FIG. 10 shows a cross-sectional view of a slat 66 on which a light emitter 3 is mounted, with the slat angle 10 changed from 15° to 165°. The left side in the drawing is the indoor side 8, and the right side is the outdoor side 7. Each slat 66 has a curved shape. The upper slats 68 and the lower slats 69 form an overlapping portion 67 where the lower part of the upper slat 68 overlaps the upper part of the lower slat 69. At a slat angle of 15°, the overlapping portion 67 is configured so that the upper slats 68 are positioned closer to the outdoor side 7 than the lower slats 69, making it possible to block bright light from the outdoor side 7 that enters through gaps between the slats 66. This makes it possible to realize a blind display 1 with excellent light-blocking performance.

[0036] The base material of the slats 2 of the flat body shown in Fig. 2, the slats 62 shown in Fig. 9, and the slats 66 shown in Fig. 10 is made of wood, aluminum, plastic material, or a composite material of these. As the plastic material, insulating materials such as polyimide (PI), polyethylene (PE), polypropylene (PP / OPP), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyvinyl chloride resin (PVC), polystyrene (PS / OPS), acrylic (AC), polycarbonate (PC), triacetate (TAC), etc. are used. If the base material is wood or plastic, the thickness should be 0.5 mm or more to ensure strength, and if the base material is aluminum, the thickness should be 0.5 mm or less to achieve light weight.

[0037] FIG. 11 is a diagram showing the wiring of the power supply lines and the display signal lines in the blind display 1. As shown in FIG. FIG. 12 is a diagram showing the wiring of the power supply lines and the display signal lines to each of the odd-numbered slats 100 and the even-numbered slats 101. In FIG. In Figure 11, the blind display 1 has 25 light-emitting elements 3 mounted on one slat 2, and five slats 2 are used, so the blind display 1 has a total of 125 light-emitting elements 3. Although Figure 6 illustrates an example in which 16 light-emitting elements 3 are used, and Figure 7 illustrates an example in which 50 light-emitting elements 3 are used, in Figure 11 as well, in order to correctly display information projected on the blind display 1, it is sufficient to set the number of pixel data constituting the cycle data 49 (see Figure 5) sent from the display signal generator 74 to 125.

[0038] 11 and 12, we will explain the DC power supply line, ground line, and display signal line for displaying information on blind display 1. A DC voltage line 71 and a ground line 72 from a DC power supply 70 are connected to corresponding input terminals of head box 9 for blind display 1. Similarly, a display signal line 73 from a display signal generator 74 is also connected to head box 9. DC voltage line 71, ground line 72, and display signal line 73 connected to head box 9 are output from head box 9 as DC voltage line 77, ground line 78, and input display signal line 80 for connection to corresponding terminals provided at wiring connection portion 75 at the left end of the slat 2 of the topmost slat.

[0039] First, the flow of a display signal for lighting up the light emitters 3 of the slats 2 will be described. 12, an input display signal line 80 from the head box 9 shown in FIG. 11 is connected to an input display signal terminal 81 in the input display signal connection unit 79. The signal line from the input display signal terminal 81 is connected to an input terminal 86 of the light emitter 3. The input display signal applied to the input terminal 86 is transferred to the right through the light emitter 3 in the figure, causing all 25 light emitters 3 up to the right end to light up with a brightness corresponding to the input signal. A display signal is output from the output terminal 87 of the 25th light emitter 3 at the right end of the odd-numbered slat 100, and this output display signal is sent to an output display signal terminal 89 provided in the output display signal connection unit 88. A lead wire connected to the output display signal terminal 89 passes through a display signal line through-hole 90 from the back side of the odd-numbered slat 100 to an input display signal terminal 92 in the input display signal connection unit 91 on the front side of the even-numbered slat 101, and is then applied to an input terminal 94 of the light emitter 3 as an input display signal for the even-numbered slat 101. The input display signal is transferred to the left in the drawing through the light emitters 3, and all 25 light emitters 3 up to the left end light up with brightness corresponding to the input signal.

[0040] A display signal is output from the output terminal 98 of the 25th light-emitting element 3 located at the left end of the even-numbered slat 101, and this output display signal is sent to an output display signal terminal 96 provided in the output display signal connection unit 95. A lead wire (not shown) connected to the output display signal terminal 96 is passed through a display signal line through-hole 97 and connected from the back side of the even-numbered slat 101 to an input display signal terminal (not shown) provided on the front side of the odd-numbered slat in the lower row, and the input display signal is transferred to the right side in the drawing as with the odd-numbered slat 100 in the upper row, and all 25 light-emitting elements 3 up to the right end light up with brightness corresponding to the input signal. By repeating this operation, the input display signal is transferred to the right in the diagram for the odd-numbered slats 2 of the five slats, and to the left in the diagram for the even-numbered slats 2, causing all 125 light-emitting elements 3 to light up with a brightness corresponding to the input signal, and the blind display 1 displays normal information. Regardless of the number of light emitters 3 mounted on the slats 2 of the blind display 1 or the number of slats 2, the blind display 1 displays normal information by controlling the number of pixel data constituting the cycle data 49 (see Figure 5) transmitted from the display signal generator 74 to the same number.

[0041] Here, when the lead wire connected to the output display signal terminal 89 is passed through the display signal wire through hole 90 and connected from the back side of the odd-numbered slat 100 to the input display signal terminal 92 at the input display signal connection part 91 on the front side of the even-numbered slat 101, the lead wire connected to the output display signal terminal 89 is wired so that it does not protrude beyond the right ends of the odd-numbered slats 100 and the even-numbered slats 101, thereby ensuring the design of the blind display 1 as a window decoration. Similarly, when the lead wire connected to the output display signal terminal 96 is passed through the display signal wire through-hole 97 and connected from the back side of the even-numbered slat 101 to the input display signal terminal provided on the front side of the odd-numbered slat in the lower row, the lead wire connected to the output display signal terminal 96 is wired so that it does not protrude beyond the left ends of the even-numbered slat 101 and the odd-numbered slat in the lower row, thereby ensuring the design of the blind display 1 as a window decoration.

[0042] Next, a method of wiring the DC voltage and ground to be supplied to the light emitters 3 mounted on each slat will be described. The DC voltage wire 77 and ground wire 78 from the head box 9 are structured to be taken out from the left and right ends of the head box 9. The DC voltage wire 77 and ground wire 78 from the left end of the head box 9 shown in Fig. 11 are connected to a DC voltage terminal 82 and a ground terminal 84 in the power supply line connection part 76 at the left end of the topmost slat 2 (the odd-numbered slat 100), as shown in Fig. 12. The DC voltage terminal 82 and the ground terminal 84 are connected to the DC voltage terminals and ground terminals of the 25 light-emitting elements 3 on the odd-numbered slats 100 (not shown), so that when a display signal is applied to the light-emitting elements 3, they light up with a brightness corresponding to the input signal.

[0043] In addition, a power line connection section 102 similar to the power line connection section 76 provided at the left end is provided at the right end of the odd-numbered slats 100, and the DC voltage line 77 and ground line 78 taken out from the right end of the head box 9 are connected to the DC voltage terminal and ground terminal within the power line connection section 102 (not shown).The DC voltage terminal and ground terminal are connected by lead wires to the DC voltage terminal and ground terminal of the light-emitting body 3 (not shown).Therefore, the amount of voltage drop due to the resistance component of the DC voltage line 77 at the left end due to the current consumption of the light-emitting body 3 is approximately equal to the amount of voltage drop due to the resistance component of the DC voltage line 77 at the right end.Therefore, the DC drop voltage of each DC voltage line 77 on the left and right sides caused by the current consumption of the 25 light-emitting bodies 3 can be reduced.As a result, the voltage fluctuation applied to the DC voltage terminal of the light-emitting body 3 is reduced, and a stable DC voltage can be supplied. Here, in a blind display 1 in which the luminous body 3 may have a low luminance, the voltage drop due to the resistance component of the DC voltage line 77 at the left end is small, so there is no need to provide the power line connection part 102 at the right end.

[0044] Next, DC voltage and ground are supplied to all slats 2 as follows. To connect the DC voltage wire 77 and ground wire 78 of the upper slat (odd-numbered slat 100) to the lower slat 2 (even-numbered slat 101), lead wires joined by soldering or the like to the DC voltage terminal 82 and ground terminal 84 are passed through the DC voltage wire through-hole 83 and ground wire through-hole 85, respectively, and connected from the back side of the odd-numbered slat 100 to the respective terminals of the power line connection part 104 on the front side of the even-numbered slat 101 (not shown). A similar connection is made to the power line connection part 102 at the right end. By making such connections sequentially toward the lower slat 2, DC voltage and ground can be supplied to all slats 2.

[0045] Here, when the lead wires joined to the DC voltage terminal 82 and the ground terminal 84 by soldering or the like are passed through the DC voltage line through-hole 83 and the ground line through-hole 85, respectively, and connected from the back side of the odd-numbered slats 100 to the respective terminals of the power line connection portion 104 on the front side of the even-numbered slats 101, the lead wires joined to the DC voltage terminal and the ground terminal by soldering or the like are wired so that they do not protrude beyond the ends of the odd-numbered slats 100 and the even-numbered slats 101, thereby ensuring the design of the blind display 1 as a window decoration. Furthermore, by providing similar wiring to the power line connection parts 102 provided at the right ends of the odd-numbered slats 100, the design of the blind display 1 as a window decoration can be ensured.

[0046] FIG. 13 is a diagram showing the folded state of the blind display 1 of the present invention. FIG. 13(1) is a perspective view of the blind display 1 with the slats folded, and FIG. 13(2) is an enlarged view of the folded slat 110. The slats 2 carrying the light emitters 3 are folded upward toward the head box 9 by operating the lifting cord belt 11 shown in FIG. 13(1). During the process of folding the slats 2, friction occurs between the upper surface of the slat 2 (n+1th) carrying the light emitter 3 and the lower surface of the slat (nth) above it, and between the lower surface of the slat 2 (n+1th) carrying the light emitter 3 and the upper surface of the lower slat (n+2th) carrying the light emitter 3. The friction may result in scratches on the opposite surface of the slat 2 (n+1th) carrying the light emitter 3 and the lower surface of the upper slat (nth) by the tip 111 of the light emitter 3 or the sharp tips of the lead wires connected by soldering or the like to the input display signal terminal 81, DC voltage terminal 82, ground terminal 84, etc. provided on the slat 2. That is, there is a risk that the flat slat surface on which the light emitter 3 is not mounted may be scratched.

[0047] Fig. 14 is a diagram showing a light emitter board cover 112 provided on a slat 2 on which a light emitter 3 is mounted. Fig. 14(1) is a front view showing the light emitter board cover 112 provided on a slat on which a light emitter is mounted, and Fig. 14(2) is a cross-sectional view taken along the line AA in Fig. 14(1). Since the light emitter board cover 112 is provided to cover the light emitter board 30, even if the slats rub against each other when folding the slats 2, it is possible to prevent damage to the flat slat surfaces on which the light emitters 3 are not mounted. In other words, even if there are sharp parts on the tip portions 111 of the light emitters or on the tip portions of the lead wires connected by soldering or the like to the input display signal terminals 81, DC voltage terminals 82, ground terminals 84, etc. provided on the slats 2, scratches on the flat slat surfaces on which the light emitters 3 are not mounted can be prevented by covering them with the light emitter board cover 112 made of a transparent or semi-transparent insulating sheet.

[0048] By reducing the transmittance of the light emitting body board cover 112, the presence of the light emitting body board 30 mounted on the slat 2 can be reduced, thereby ensuring the design of the blind display 1 as a window decoration. Furthermore, by providing diffusivity to the light emitting body board cover 112 and illuminating the light emitting body 3, the base color of the slat 2 becomes the color illuminated by the light emitting body 3, thereby realizing a blind display 1 with enhanced design. Because the light from the light emitting body 3 can be emitted in full color, it is possible to realize slat colors that suit the environment in which the blind display 1 is used. Furthermore, the light emitter board 30, which is provided with a group of electronic components including light emitters, has the drawback that the height of the components is not uniform and there are parts without components, so that dust tends to accumulate there and cleaning is time-consuming, but this drawback can be eliminated by providing the light emitter board cover 112.

[0049] FIG. 15 is a diagram showing a light-emitting substrate fixing pin 115 used in the blind display 1 of the present invention. FIG. 15(1) is a front view of the light-emitting substrate 30 with light-emitting substrate fixing pins 115, and FIG. 15(2) is a cross-sectional view taken along the line AA. The light-emitting substrate 30 is fixed to the slat 2 using an adhesive. However, if the expansion coefficient of the light-emitting substrate 30 differs from that of the slat 2, there is a concern that the both ends or the center of the light-emitting substrate 30 may peel off from the slat 2 due to the influence of the ambient temperature related to the usage environment of the slat 2 (the installation environment of the blind display 1). To prevent the light-emitting substrate 30 from peeling off from the slat 2, light-emitting substrate fixing pins 115 are provided on the light-emitting substrate 30 at both ends of the light-emitting substrate 30 or at appropriate intervals, thereby preventing the light-emitting substrate 30 from peeling off from the slat 2. By using the light-emitting substrate fixing pins 115 in this manner, the light-emitting substrate 30 and the slat 2 can be completely fixed together, and peeling of the light-emitting substrate 30 from the slat 2 can be prevented even if the slat 2 vibrates. 15 shows an example in which the light-emitting substrate 30 is fixed onto the slat 2 using the light-emitting substrate fixing pin 115, but it is also possible to fix the light-emitting substrate 30 onto the slat 2 using a viscous adhesive such as an acrylic adhesive or an epoxy adhesive. By fixing the light-emitting substrate 30 onto the slat 2 in this way, the light-emitting substrate 30 and the slat 2 can be permanently and stably fixed together even if the slat 2 vibrates or the ambient temperature changes.

[0050] 16 is an image diagram of a blind display 1 of the present invention installed in a building. People passing by in the business district can enjoy the information displayed on the blind display 1 installed in the window of a building 120. In the drawings, the same reference numerals and symbols indicate the same functions and effects. [Industrial Applicability]

[0051] The blind display of the present invention is an information transmission medium that has a display function while retaining the function of blinds as window decorations used all over the world, and therefore can easily project video information and text, graphic, and image information to many people around the world, making it useful as a device for providing new information services. [Explanation of symbols]

[0052] 1. Blind Display 2,62,66 Slats 3. Luminous Object 4,63,68 Upper slats 5,64,69 Lower slats 6,67 Overlap 7 Outdoor side 8 Indoor side 9 Headbox 10 Slat Angle 11 Lifting cord belt 12 Ladder cord pole 13 Ladder Code 21 Package substrate 22 red LED 23 Blue LED 24 green LEDs 25 Control Unit 27, 32, 86, 94 input terminals 28 Light Emitting Signal 29, 33, 87, 98 output terminals 30 Light emitter board 31 Display signal 34,74 Display signal generator 40 Timing chart 41 a1 signal 42 a2 signal 43 a3 signal 44 a4 signal 45 a1 pixel data 46 a2 pixel data 47 a3 pixel data 48 a4 pixel data 49 Cycle Data 50 odd-numbered luminaire-equipped slats 51 Even-numbered luminous body mounted slats 52 Input display signal (1) 53 Output display signal (1) 54 Input display signal (2) 55 Output display signal (2) 60 Planar body A 61 Planar body B 70 DC power supply 71,77 DC voltage line 72,78 Ground line 73 Display signal line 75 Slat left end wiring connection 76,102,103,104 Power line connection 79,91 Input display signal connection 80 Input display signal line 81,92 Input display signal terminals 82 DC voltage terminal 83 DC voltage line through hole 84 Ground terminal 85 Ground line through hole 88,95 Output display signal connection 89,96 Output display signal terminals 90,97 Display signal line through hole 100 odd numbered slats 101 Even-numbered slats 110 folded slats 111 (light-emitting body) tip 112 Light source board cover 115 Light emitting body board fixing pin 120 Building

Claims

[Claim 1] In a blind structure in which the lower part of the upper slat overlaps the upper part of the lower slat when blocking light, the upper part of the lower slat in the overlapping part is located on the indoor side of the lower part of the upper slat, and a group of electronic components including light-emitting bodies are arranged on the indoor side surface of each slat, The light emitter is a package substrate on which three LED chips that emit light in red, blue, and green, and a control unit that controls the light emission of the LED chips, are mounted, A plurality of the light emitters are arranged in a longitudinal direction on the surface of the slat, A display signal sent from a display signal generator is applied to the control unit of each of the light emitters in series and sequentially; Each of the slats is arranged in parallel, A blind display characterized in that, by operating the pole provided on the blind, the direction of the light-emitting element changes within a range from an approximately horizontal direction on the indoor side to an approximately horizontal direction on the outdoor side via a downward direction, and the light-emitting element emits light toward the outdoor side.

Images