Multi-line display strip and multi-picture display screen

Abstract

The embodiment of the invention provides a multi-picture display screen, the multi-picture display screen comprises a display group and a light control group, the display group can simultaneously emit a plurality of light beams which are arranged in sequence, the light control group is located at the light emitting sides of the plurality of display groups, and the light control group is located on the propagation path of the light beams so as to change the propagation range angle and the emergent angle of each light beam. The plurality of display groups are arranged in an array, under the action of the light control group, the irradiation areas of the light beams arranged at the same position on different display groups are the same at the preset distance, and the irradiation areas of the light beams arranged at different positions on the same display group are different at the preset distance. The light beams, located at the same arrangement position, on all the display groups irradiate an area at the preset distance, and then a picture can be seen in the area. A plurality of different irradiation areas, namely a plurality of different pictures, are formed corresponding to a plurality of light beams of one display group. A distance is formed between every two adjacent irradiation areas, so that different pictures cannot be overlapped.

Description

Technical Field

[0001] The present invention relates to the technical field of display equipment, and in particular to a multi-line display bar and a multi-image display screen. Background Art

[0002] Usually, large supermarkets or exhibition halls have display screens on each floor to introduce the layout of the floor or show important videos, so that visitors or shoppers can quickly find the location they want to go to. These display screens are usually located in a specific location, and the location of the display screens in different buildings is different. For people who need to obtain information through display screens in buildings, it is very troublesome and a bad experience if the display screens cannot appear or cannot be found when needed.

[0003] As we all know, multi-story buildings are equipped with glass to maintain indoor transparency. If the display screen is set outside the building, people in the building can see the display screen by walking to the window when they need it, which can solve the above problem. However, in this way, multiple display screens need to be set up corresponding to the number of floors of the building, which is not only costly but also occupies a large space. Alternatively, the display information of different floors is played in turn on a display screen, so people who need to obtain the information of their floor need to wait for the information of the corresponding floor to appear on the screen, and they must obtain the required information within the specified time, otherwise the display screen will switch to the information of another floor, which will bring a bad experience to people who need to obtain the information of their floor. Summary of the invention

[0004] In view of the above problems, an embodiment of the present invention is proposed. The purpose of the embodiment of the present invention is to provide a multi-image display screen that can simultaneously display different images at different positions at a preset distance without overlapping between the different images.

[0005] To achieve this purpose, the embodiment of the present invention adopts the following technical solutions:

[0006] A multi-image display screen, comprising:

[0007] A display group, capable of simultaneously emitting a plurality of sequentially arranged light beams, wherein a plurality of the display groups are arranged in an array;

[0008] A light control group, located at the light exit side of the plurality of display groups, the light control group being located on the path of the light beam propagation to change the range angle and the exit angle of each light beam propagation;

[0009] The light beams arranged at the same position on different display groups have the same irradiation area at the preset distance;

[0010] The light beams arranged at different positions on the same display group have different irradiation areas at a preset distance;

[0011] There is a distance between two adjacent irradiation areas.

[0012] Optionally, the display group includes a plurality of light sources arranged in sequence;

[0013] The light control group includes a plurality of light focusing elements corresponding to the light sources one by one, and the light focusing elements are arranged on the light emitting surface of the light sources;

[0014] The focusing angles of different focusing elements are different;

[0015] Different light concentrators allow the light beam to emit at different angles.

[0016] Optionally, the light focusing element comprises:

[0017] a lens, located at the light-emitting side of the light source; and

[0018] A light-blocking brim, which is disposed on both sides of the lens and covers the light source;

[0019] One end of the light-shielding brim facing away from the light source extends out of the lens.

[0020] Optionally, the light focusing element comprises:

[0021] The light source is located on the light incident surface of the lens, the light exit surface and / or the light incident surface of the lens are provided with a partially frosted surface, and the shape of the lens and the frosted surface are used to change the path of light beam propagation.

[0022] Optionally, the light focusing element comprises:

[0023] Light-blocking hat brims, both sides of the light source are covered with the light-blocking hat brims;

[0024] The angle between the two side surfaces of the light-blocking brims facing each other is the range angle;

[0025] The angle between the lower boundary of the brim angle and the horizontal line is the emission angle.

[0026] Optionally, the light control group is a packaging glue, which is coated on the display group, and the packaging glue is light-transmissive;

[0027] The thickness and shape of the packaging glue at different light sources are different.

[0028] Optionally, the light control group is a polarizer, and the polarizer covers the light-emitting side of the display array composed of the plurality of display groups;

[0029] The polarizer can change the refraction direction of light at different positions; or

[0030] Different polarization filters are arranged on the polarizer corresponding to different light beams.

[0031] As an alternative,

[0032] There is a first angle between the center line of the lens and the horizontal line;

[0033] Different light focusing elements on the same light control group have different first angles.

[0034] Optionally, it also includes:

[0035] A PCB board, on which the display group and the light control group are both arranged;

[0036] The PCB board is provided with a plurality of hollow holes arranged in an array at intervals;

[0037] The array of hollow holes and the array of display groups are arranged in a staggered manner.

[0038] Optionally, the PCB board is a curved board, and the array of the display group is a single-row array arranged along the length direction of the PCB board;

[0039] The plurality of PCB boards are arranged in sequence along the vertical direction;

[0040] The installation angles of different PCB boards are different.

[0041] Optionally, the display group is arranged along the circumference of the arc plate.

[0042] Optionally, it also includes:

[0043] The display groups are coupled to the controller, and the controller controls the multiple sequentially arranged light beams emitted by different display groups at the same time to all be in preset colors.

[0044] A multi-image display screen, comprising:

[0045] A plurality of multi-line display bars as described above arranged in sequence along the longitudinal direction;

[0046] Different multiple line display strips have different installation angles.

[0047] Another object of an embodiment of the present invention is to provide a multi-line display bar capable of simultaneously displaying different light bars at different positions at a preset distance, and wherein the different light bars do not overlap.

[0048] To achieve this purpose, the embodiment of the present invention adopts the following technical solutions:

[0049] A multiple line display bar, comprising:

[0050] PCB board is a curved board;

[0051] A display group, capable of simultaneously emitting a plurality of sequentially arranged light beams, wherein the plurality of display groups are spaced apart along the length direction of the PCB board; and

[0052] A light control group, located at the light-emitting side of the plurality of display groups, the light control group being located on the propagation path of the light beams to change the propagation range angle of each light beam;

[0053] The light beams arranged at the same position on different display groups have the same irradiation area at the preset distance;

[0054] The light beams arranged at different positions on the same display group have different irradiation areas at a preset distance;

[0055] There is a distance between two adjacent irradiation areas.

[0056] Optionally, the PCB board is provided with a plurality of hollow holes;

[0057] The display groups and the hollow holes are arranged alternately.

[0058] Optionally, the display group includes a plurality of light sources, and the light control group includes a plurality of light focusing elements corresponding to the light sources one by one;

[0059] The multiple line display bars have multiple different series, and the difference between the multiple line display bars of different series includes at least one of the following situations:

[0060] The display groups include different numbers of light sources;

[0061] The vertical distances between two adjacent light sources on the same display group are different;

[0062] Different vertical distances between two adjacent light sources on the same display group;

[0063] The structures of the focusing elements of the light control group are different.

[0064] A multi-image display screen, comprising:

[0065] A plurality of multi-line display bars as described above arranged in sequence along the longitudinal direction;

[0066] Different multiple line display strips have different installation angles.

[0067] The technical solution provided by the embodiment of the present invention can simultaneously emit multiple sequentially arranged light beams by setting the display group, and the light control group is located on the path of light beam propagation, which can change the range angle and the emission angle of each light beam propagation. The display groups are arranged in an array, and the light control group is located on the light emitting side of multiple display groups. Under the action of the light control group, the light beams with the same arrangement position on different display groups have the same illumination area at a preset distance, and the light beams with different arrangement positions on the same display group have different illumination areas at a preset distance. The light beams at the same position on all display groups are all illuminated in one area at a preset distance, so a picture can be seen in this area. Then, the multiple light beams corresponding to one display group will form multiple different illumination areas, that is, multiple different pictures. There is a spacing between two adjacent illumination areas, so that there is no overlap between different pictures. BRIEF DESCRIPTION OF THE DRAWINGS

[0068] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0069] Figure 1 A side schematic diagram of a display screen provided by an embodiment of the present invention;

[0070] Figure 2 A schematic diagram of a light beam with different propagation range angles at the same emission angle provided by an embodiment of the present invention;

[0071] Figure 3 A schematic diagram of a device having the same propagation range angle but different emission angles provided by an embodiment of the present invention;

[0072] Figure 4 An illumination diagram of a display group on a building in a multi-image display screen provided by an embodiment of the present invention;

[0073] Figure 5 for Figure 4 Illumination diagram of multi-image display screen on building;

[0074] Figure 6a to Figure 6e A schematic diagram of a structure of different numbers of images presented when there are five display groups on a display screen corresponding to buildings on different floors;

[0075] Figure 7a to Figure 7b Schematic diagram of the structure of different light concentrators provided by embodiments of the present invention;

[0076] Figure 8a to Figure 8bA schematic diagram of the structures of different display screens provided by embodiments of the present invention;

[0077] Fig. 9 for Figure 7a Schematic diagram of light beam propagation angles of a light concentrator at different first angles;

[0078] Fig.10 A schematic diagram of light beams at different positions irradiating the same floor provided by an embodiment of the present invention;

[0079] Fig.11 A schematic diagram of different installation angles of display bars when the same position beam on display bars at different positions is directed to the same floor, provided by an embodiment of the present invention;

[0080] Fig.12 A schematic cross-sectional view of the installation of a display bar provided by an embodiment of the present invention;

[0081] Fig.13 A schematic structural diagram of a cross section of a display bar provided by an embodiment of the present invention;

[0082] Fig.14 A schematic diagram of the front structure of a display screen provided by an embodiment of the present invention;

[0083] Fig.15 A schematic diagram of the structure of a display bar provided by an embodiment of the present invention.

[0084] In the figure:

[0085] 1. Display group; 2. Light control group; 3. Hollow hole; 4. PCB board;

[0086] 11. light source; 20. focusing element; 21. lens; 22. light-shielding brim; 23. receiving groove. DETAILED DESCRIPTION

[0087] In order to solve the problem that a display screen projects different images to the windows of different floors of the same building, the inventor of the present application tried to change the lamp bead array on the original display screen into a lamp bead group array. A lamp bead group includes multiple light sources and can emit multiple light beams at the same time. The number of light beams corresponds to the number of floors of the building. The irradiation angle and irradiation range of each light beam are changed so that the irradiation angle of each light beam is directed to the corresponding floor, and the irradiation range is the height range of the corresponding floor. Then, the lamp bead group array will present different images corresponding to different floors to solve the above problem, so the following embodiments are provided.

[0088] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0089] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0090] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0091] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0092] The present application provides a multi-screen display screen (hereinafter referred to as the display screen), which can display different screens at different locations at a preset distance. For example, if there is a multi-story shopping mall at a preset distance, the display screen can display the layout of the shops on the floor and other information related to the floor corresponding to different floors. Users can obtain information about the floor through the display screen as long as they find the location of the window on the floor, thereby avoiding problems such as users getting lost because they cannot find the display screen on the floor they are on, and improving the shopping experience of users.

[0093] Specifically, in some embodiments of the present application, please refer to Figure 1As shown, the display screen includes a display group 1 and a light control group 2, wherein the display group 1 can simultaneously emit multiple sequentially arranged light beams, and the light control group 2 is located on the path of light beam propagation to change the range angle and the emission angle of each light beam propagation. The range angle is the angle between the upper boundary and the lower boundary of a light beam, for example Figure 2 The angle α in Figure a is Figure 2 The angle β in Figure b and Figure 2 The angle θ in Figure c is the angle between the lower boundary of a beam of light and the horizontal line, for example Figure 3 The angle γ in Figure a is Figure 3 The angle δ in Figure b and Figure 3 The angle ε in Figure c is shown in Figure 2. Please continue to refer to Figure 2 as well as Figure 3 As shown, by changing the emission angle of the light beam, the light beam can only be irradiated at a specified position at a preset distance, for example, at a specified floor height range of a multi-story building at the preset distance (for the convenience of description, the building hereinafter is assumed to be located at the preset distance and has multiple floors). By changing the range angle of the light beam, the light beam coincides with a specified range of the preset distance, for example, the height range of a specified floor of a building.

[0094] In more detail, Figure 4 As shown, suppose that one of the display groups 1 on the display screen can simultaneously emit red, green, and blue light beams, and the building has three floors, and the emission angle of the red light beam is toward the first floor of the building, and the propagation range angle is the height range of the first floor, then when a person on the first floor looks at the display group 1 on the display screen, he will see that the display group 1 emits red light. The emission angle of the green light beam is toward the second floor of the building, and the propagation range angle is the height range of the second floor, then when a person on the second floor looks at the display group 1 on the display screen, he will see that the display group 1 emits green light. The emission angle of the blue light beam is toward the third floor of the building, and the propagation range angle is the height range of the third floor, then when a person on the third floor looks at the display group 1 on the display screen, he will see that the display group 1 emits blue light.

[0095] In an embodiment of the present application, a plurality of display groups 1 are arranged in an array, and a light control group 2 is located on the light-emitting side of the plurality of display groups. Under the action of the light control group 2, light beams with the same arrangement position on different display groups 1 have the same irradiation area at a preset distance, and light beams with different arrangement positions on the same display group 1 have different irradiation areas at a preset distance. That is to say, the light beams at the same arrangement position on all display groups 1 on the display screen are all irradiated in one area at a preset distance, so one picture can be seen in this area. Then, corresponding to the plurality of light beams of a display group 1, a plurality of different irradiation areas, i.e., a plurality of different pictures, will be formed. There is a spacing between two adjacent irradiation areas, and the spacing is greater than or equal to 0, so that there is no overlap between different pictures.

[0096] Please refer to Figure 5 As shown, it is still taken as an example that a display group 1 can emit three different colored light beams of red, green and blue in sequence and the building has three floors. Assume that all display groups 1 on the display screen can emit three beams of light from top to bottom, namely, an upper beam, a middle beam and a lower beam, and the emission angle of the upper beams of all display groups 1 is toward the third floor of the building, and the irradiation range of the range angle is the height range of the third floor; the emission angle of the middle beams of all display groups 1 is toward the second floor of the building, and the irradiation range of the range angle is the height range of the second floor; the emission angle of the lower beams of all display groups 1 is toward the first floor of the building, and the irradiation range of the range angle is the height range of the first floor. If the pattern formed by the upper beams of all display groups 1 on the display screen is a circle, the pattern formed by the middle beams of all display groups 1 is a triangle, and the pattern formed by the lower beams of all display groups 1 is a square, then people on the third floor of the building will see that the display screen displays a circle, people on the second floor of the building will see that the display screen displays a triangle, and people on the first floor of the building will see that the display screen displays a square.

[0097] Figure 6a to Figure 6e The figure is a light line diagram showing different numbers of images for different floors by the five display groups 1 on the display screen when there are five display groups 1 on the display screen and the building has 6 floors, 5 floors, 4 floors, 3 floors and 2 floors respectively. Figure 6e as well as Figure 6d For example, please refer to Figure 6e, the building includes two floors, and the display screen includes five display groups 1 from top to bottom, namely display group A, display group B, display group C, display group D, and display group E. These five display groups 1 can emit red and blue light beams. The emission angles of the red light beams of these five display groups 1 are all toward the first floor, and the range angles of the red light beams are the height range of the first floor, while the emission angles of the blue light beams of these five display groups 1 are all toward the second floor, and the range angles of the blue light beams are the height range of the second floor. Then, people on the first floor will see the display screen as a red screen, while people on the second floor will see the display screen as a blue screen. Please refer to Figure 6d , the building includes three floors, and the display screen includes five display groups 1 from top to bottom, namely display group A, display group B, display group C, display group D, and display group E. These five display groups 1 can emit red, blue and green light beams. The emission angles of the red light beams of these five display groups 1 are all toward the first floor, and the range angle of the red light beam is the height range of the first floor; the emission angles of the blue light beams of these five display groups 1 are all toward the second floor, and the range angle of the blue light beam is the height range of the second floor; the emission angles of the green light beams of these five display groups 1 are all toward the third floor, and the range angle of the green light beam is the height range of the third floor, then people on the first floor will see that the display screen shows a red screen, people on the second floor will see that the display screen shows a blue screen, and people on the third floor will see that the display screen shows a green screen. And so on. Figure 6a to Figure 6e It can be known that if each floor of the building can see the corresponding picture on the display screen, then each display group 1 should emit the same number of light beams corresponding to the number of floors of the building.

[0098] In some embodiments of the present application, the display group 1 includes a plurality of three-color intersection imaging light sources 11 (hereinafter referred to as light sources 11) arranged in sequence, and the light source 11 presents the required color by the intersection of red, green and blue, so that the color range of the light beam emitted by the light source 11 is wider to ensure that the color of the image presented by the display screen is more realistic. Optionally, the light source 11 is a light emitting chip, and one display group 1 is one pixel. The light source 11 corresponds to the light beam one by one, and one light source 11 can emit one light beam. The display group 1 can emit as many light beams as the number of light sources included.

[0099] In some embodiments of the present application, a structure that can be realized by the light control group 2 is a structure in which the light control group corresponds to the display group 1 one by one, and the light control group 2 includes a plurality of light focusing elements 20 corresponding to the light sources one by one, and the light focusing elements 20 are covered on the light emitting surface of the light source 11, and different light focusing elements 20 have different focusing angles, so that different light beams have different range angles, and different light focusing elements 20 allow light beams to be emitted at different angles, so that the light beams have different emission angles. Thus, when the light beam emitted by the display group 1 passes through the light control group 2, the light source 11 can display a specified color within a specified range at a preset distance, for example, when looking at the light source 11 from the third floor of a building, the light source 11 emits red light, and when standing on the second floor of the building and looking at the light source 11, the light source 11 emits green light.

[0100] For further information, please refer to Figure 7a As shown, in some embodiments of the present application, the light concentrator 20 includes a lens 21 and a light-blocking brim 22, wherein the lens 21 is located at the light-emitting side of the light source 11, and the light beam emitted by the light source 11 can be projected into the lens 21 and refracted in the lens 21, so that the range angle of the light beam propagation can be changed when it is emitted from the lens 21. Both sides of the lens 21 are provided with light-blocking brims 22, and the light-blocking brims 22 cover the light source 11, so that the light emitted by the light source 11 can only pass through the range of the lens 21. In other words, the light concentrator 20 is provided with a receiving groove 23 on the side facing the light source 11, and the light source 11 is located in the receiving groove 23, and the groove walls on both sides of the receiving groove 23 are light-blocking brims 22 to block the propagation of the light emitted by the light source 11, and the groove wall of the receiving groove 23 facing the light source 11 is the lens 21, so that the light emitted by the light source 11 can only pass through the lens 21. The end of the light-blocking brim 22 away from the light source 11 extends out of the lens 21 to limit the range angle of the light beam refracted by the lens 21. Figure 7a It shows the light emission angle of the light beam emitted by the light source 11 within the range of the lens 21 if there is no light-blocking brim 22 and lens 21, and the range angle of the light beam finally emitted by the light source 11 under the action of the lens 21 and the light-blocking brim 22. The display screen of the embodiment of the present application also includes a PCB board 4, and the display group 1 and the light control group 2 are both arranged on the PCB board 4. The PCB board 4 can transmit electrical energy and signal instructions to the display group 1 so that the display group 1 performs the corresponding display task. Usually, the PCB board 4 is a flat board, and the array of the display group 1 is multi-row and multi-column. For this case, if you want to make the emission angle of each light beam different, it can be achieved by setting the angle between the center line of the lens 21 and the horizontal line. Therefore, please refer to Fig. 9As shown, in some embodiments of the present application, there is a first angle between the center line of the lens 21 and the horizontal line, and different focusing elements 20 on the same light control group 2 have different first angles. The lens 21 is located at different angles of the light source 11, and the light source 11 can only be emitted from the lens. By changing the position of the first angle, the light beam can have different exit angles. If the multiple images displayed on the display screen are arranged in sequence along the height direction, the first angles of the focusing elements 20 at the same position of the light control group 2 at the same position of different rows in the array of the light control group 2 are different. For example, the first angle of the first focusing element 20 on the light control group 2 located in the third column of the first row is different from the first angle of the first focusing element 20 on the light control group 2 located in the third column of the tenth row.

[0101] Alternatively, please refer to Figure 8a As shown, in some other embodiments of the present application, the focusing element 20 includes a lens 21, and the light source 11 is located at the light incident surface of the lens 21. When the light beam emitted by the light source 11 passes through the lens 21, it can be refracted and reflected at the light incident surface and the light exit surface, thereby changing the propagation path. A frosted surface is provided on the lens 21, and the frosted surface can be regarded as a plurality of tiny planes pieced together in random directions. Then, when the light passes through the frosted surface, it is reflected by many tiny planes to become diffusely reflected light. In other words, the frosted surface can break up the light propagating in a specific path direction into light in all directions. Thus, the light is prevented from continuing to propagate along the original path. By utilizing this point, the position of the frosted surface is reasonably set on the light exit surface or the light incident surface of the lens 21, or on the light exit surface and the light incident surface, the light emitted by the light source 11 in the unnecessary direction can be filtered out, leaving only the light propagating in the desired direction to form the final light beam, thereby changing the exit angle of the light beam. Then, by changing the shape of the lens 21, the light beam is refracted at the light exit surface to change the range angle of the light beam and enhance the brightness of the light beam.

[0102] Alternatively, please refer to Figure 7b As shown, in some other embodiments of the present application, the focusing member 20 includes a light-blocking brim 22, which has a light-blocking property and can prevent light from passing through. Light-blocking brims 22 are provided on both sides of the light source 11, and the sides of the two light-blocking brims 22 that are arranged opposite to each other form a channel for light propagation, and the channel for light propagation gradually widens from the light source 11 toward the direction away from the light source 11. The angle of the channel for light propagation is the brim angle, and the brim angle limits the range angle of light propagation, that is, the range angle of the light beam can be changed by changing the size of the brim angle. The angle between the lower boundary of the brim angle and the horizontal line determines the angle at which the light beam is emitted, that is, the emission angle.

[0103] In some other embodiments of the present application, another possible structure of the light control group 2 is that the light control group 2 corresponds to the entire display screen and is located on the light emitting side of the plurality of display groups 1. For example:

[0104] Please refer to Figure 8b As shown, in some embodiments of the present application, another achievable structure of the light control group 2 is that the light control group 2 is a packaging glue, which is coated on the display group, which can not only isolate the light source 11 from the outside world, protect the light source 11 and improve the heat dissipation of the light source 11, but also because the packaging glue has good light transmittance, by changing the shape and thickness of the packaging glue at the position of the light source 11 and other parameters, the angle and range of the light entering and emitting from the packaging glue can be changed, thereby determining the exit angle and range angle of the light beam.

[0105] Alternatively, please refer to Figure 8b As shown, in some other embodiments of the present application, another structure that can be realized by the light control group 2 is that the light control group 2 is a polarizer, and the polarizer covers the light-emitting side of the display group array composed of multiple display groups. The polarizer is composed of a plurality of light-transmitting layers, and a layer located in the middle is provided with light-transmitting structures of different shapes, and the light-transmitting structures correspond to the light source 11. According to the principle of light refraction, the light is refracted at a specific angle, thereby determining the light-emitting angle and range angle of the light beam. Or a layer located in the middle is covered with a plurality of different tiny polarization filters corresponding to different light sources, which only allow light in a specific direction to pass through, and light in other directions is blocked or scattered, thereby determining the light-emitting angle and range angle of the light beam.

[0106] The control group only needs to be able to change the emission angle and range angle of the light beam. As for the specific structure of the light control group, this embodiment does not make any specific limitation.

[0107] Please refer to Fig.10 As shown, the positions of light beam 1, light beam 2 and light beam 3 on the display screen are different. The propagation range angle of light beam 1 corresponding to the 5th floor is A, the propagation range angle of light beam 2 corresponding to the 5th floor is B, and the propagation range angle of light beam 3 corresponding to the 5th floor is C. The difference between angles A, B and C is not large, and the height of a floor is at least 2.5 meters, and the height of an adult is at least 1.4 meters. Even if angles A, B and C are the same, the display ranges on the same floor are different, because the differences are relatively small, and the display ranges all include the ranges where the eyes of people of different heights are located. Therefore, people of different heights on the 5th floor can all see the picture corresponding to the 5th floor presented on the display screen. And on Fig.10 In the figure, if the light beams at different heights are to be emitted toward the fifth floor, the difference between the emission angles of the different light beams is relatively large. For example, the emission angle of light beam 1 is c, the emission angle of light beam 2 is b, and the emission angle of light beam 3 is a. Obviously, angle a is greater than angle b, which is greater than angle c. In other words, if the light beams at different positions are to have the same irradiation area, it is only necessary to change the emission angle of the light beam, and the range angle of the light beam can be set to be the same.

[0108] Using the above principle, please refer to Fig.11 As shown, in some embodiments of the present application, the PCB board 4 is set to an arc plate or a circular tube, and the array of the display group 1 is a single-row array set along the length direction of the PCB board 4. In this case, it is equivalent to that multiple display groups 1 are arranged at intervals along the length direction of the PCB board 4 to form a display bar that can simultaneously display multiple different colored lines. Multiple PCB boards 4 are arranged in sequence along the vertical direction, that is, the display bars are arranged in sequence along the vertical direction to form a display screen. Please refer to Fig.12 As shown, different PCB boards 4 have different installation angles, that is, different display bars have different installation angles, so that the light beams at the same position on the display bars at different heights have different exit angles. For example, the exit angle of the light beam generated by the first light source 11 of the display group 1 in the third column of the display bar in the first row is different from the exit angle of the light beam generated by the first light source 11 of the display group 1 in the third column of the display bar in the tenth row. The irradiation area of ​​the light beam generated by the light source 11 at the same position on the display bars at different heights corresponds to the same floor, so that the display screen can display different pictures on different floors. Since the light beams at the same position on different display bars use the same range angle, the difference in the irradiation area of ​​the same floor is negligible, so all the focusing elements 20 can be set to have the same focusing angle, and the requirements of different exit angles of different light beams can be met by setting the installation angles of the display bars to be different, so that different light sources 11 can correspond to the same focusing element 20, and the light control group 2 includes a plurality of identical focusing elements 20. Then, the display bars required for the same screen are of the same specification, and by changing the installation angles of the display bars at different positions, the entire display screen can present different images at different floors. During production, it is only necessary to produce multiple display bars of the same specification, arrange the multiple display bars in sequence, and change the installation angles of the display bars at different positions to obtain the required display screen, thereby reducing the manufacturing difficulty of the entire display screen, reducing costs and shortening the processing cycle.

[0109] In this embodiment, please refer to Fig.13 As shown, since the PCB board 4 is arc-shaped or tubular, the display group 1 is set to be circumferentially arranged around the PCB board 4, then the first angles of different focusing members 20 of the light control group 2 corresponding to the display group 1 are different, so that the emission angles of the light sources 11 at different arrangement positions on the same display group 1 are different. By changing the vertical distance between two adjacent light sources 11 on the same display group 1, the emission angles of different light sources 11 on a display group 1 can be adjusted. This situation is for the same picture on two different display screens corresponding to different floors of the same building, for example Fig.13 The vertical distance between two adjacent light sources 11 of display group 1 on the display bar of Figure a is L, and Fig.13 In the middle of the figure b, the vertical distance between two adjacent light sources 11 of the display group 1 on the display bar is F, and the values ​​of L and F are different, then Fig.13 The display bars in Figure a correspond to the 1st, 3rd, 5th, 7th and 9th floors of the building and can display the corresponding colored lines. Fig.13 The display bar in the middle b corresponds to the color lines corresponding to the 3rd, 4th, 5th, 6th and 7th floors of the same building. That is to say, by changing the vertical distance between two adjacent light sources 11 of the display group 1 on the curved PCB board 4, the height position of the irradiation area of ​​the same color line on the building can be changed.

[0110] It is understandable that the height of the floors of buildings is usually the same. The distance between the display screen and the building is fixed. Different buildings have the same number of floors, and the number of pictures displayed on the display screen corresponds to the number of floors of the building. Alternatively, although the number of floors of different buildings is different, the number of pictures displayed on the display screen and the number of floors corresponding to different pictures are the same. For example, building A has 8 floors and building B has 5 floors. Display screen B is required to display different pictures corresponding to the 5 floors of building B, and display screen A is required to display different pictures corresponding to the 1st to 5th floors of building A. In the above two cases, the same model of display bar can be used. For buildings with at least one of the following four conditions: different floor heights; different numbers of images required to be displayed; different floors corresponding to the same image; and different distances between the display screen and the building, that is, the number of images required for different buildings and the illumination area of ​​the images (i.e., the field of view) can be flexibly manufactured by changing the number of light sources 11 of the display group 1 on the display bar, the distance between two adjacent light sources 11, the distance between two adjacent light sources 11 on the same display group 1 being the same or different; and the structure of the focusing piece 20 on the light control group 2 to meet the requirements of the scene. In order to facilitate the production of the display screen and further reduce the cost, different series of display bars can be designed, and the difference between different series of display bars includes at least one of the following conditions: different numbers of light sources 11 included in the display group 1; different vertical distances between two adjacent light sources 11; different vertical distances between two different adjacent light sources 11 on the same display group 1; different structures of the focusing piece 20 of the light control group 2. So that the display bar becomes a serialized standard part, thereby realizing mass production and reducing manufacturing costs and manufacturing cycles. Of course, display bars that meet the special needs of customers can also be developed.

[0111] In some embodiments of the present application, the display screen further includes a controller, the display group 1 is coupled to the controller, and the controller controls the multiple sequentially arranged light beams emitted by different display groups 1 at the same time to all be in preset colors, so that the display screen displays different images at the same time.

[0112] Usually, the size of the display screen that can display images to the building is relatively large. In order to avoid the display screen obstructing the viewing angle of people in the building, in some embodiments of the present application, a plurality of hollow holes 3 arranged in an array are arranged at intervals on the PCB board 4, and the array of the hollow holes 3 is staggered with the array of the display group 1. If the PCB board 4 is a flat board, please refer to Fig.14 As shown, the hollow hole 3 array is multiple rows and columns. If the PCB board 4 is a curved board on the display bar, please refer to Fig.15 As shown, the array of hollow holes 3 is a single row with multiple columns, and the hollow holes 3 and the display groups 1 are arranged alternately. Thus, the display screen is a transparent display screen, and people in the building can see the scenery on the side of the display screen away from the building. The display screen will not block the building, and people on the side of the display screen away from the building can look at the building through the display screen.

[0113] It is understandable that the more display groups 1 there are on a PCB board 4, the better the picture effect displayed on the display screen, so the smaller the space occupied by the display group 1, the better. Compared with different light sources 11 on the same display group 1 arranged in a circle, hexagon, square, triangle, etc., different light sources 11 are arranged in sequence to form a vertical line display group 1 or a horizontal line display group 1. The space occupied is smaller, which makes it possible to set the hollow hole 3 on the PCB board 4. Fig.14 As shown, in some embodiments of the application, when the PCB board 4 is a flat plate, the different light sources 11 on the display group 1 are arranged in sequence along the vertical direction, so that the display group 1 is in a vertical line shape, and a row of hollow holes 3 is provided between two adjacent rows of display groups 1, and no row of hollow holes 3 is provided between two adjacent rows of display groups 1, so that more display groups 1 can be accommodated on the display screen to improve the display effect of the picture. Of course, in other embodiments, in order to improve the transparency of the display screen, a row of hollow holes 3 can also be provided between two adjacent rows of display groups 1. In other embodiments, the display group 1 can also be set as a horizontal line display group 1 in which multiple light sources 11 are arranged in sequence in a horizontal line, as long as the picture requirements required by the customer can be met, and this embodiment does not make specific limitations on this.

[0114] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multi-image display screen, characterized in that: include: A display group, capable of simultaneously emitting a plurality of sequentially arranged light beams, wherein a plurality of the display groups are arranged in an array; A light control group, located at the light exit side of the plurality of display groups, the light control group being located on the path of the light beam propagation to change the range angle and the exit angle of each light beam propagation; The light beams arranged at the same position on different display groups have the same irradiation area at the preset distance; The light beams arranged at different positions on the same display group have different irradiation areas at a preset distance; There is a distance between two adjacent irradiation areas.

2. The multi-image display screen according to claim 1, characterized in that: The display group includes a plurality of light sources arranged in sequence; The light control group includes a plurality of light focusing elements corresponding to the light sources one by one, and the light focusing elements are arranged on the light emitting surface of the light sources; The focusing angles of different focusing elements are different; Different light concentrators allow the light beam to emit at different angles.

3. The multi-image display screen according to claim 2, characterized in that: The light concentrator comprises: a lens, located at the light-emitting side of the light source; and A light-blocking brim, which is disposed on both sides of the lens and covers the light source; One end of the light-shielding brim facing away from the light source extends out of the lens.

4. The multi-image display screen according to claim 2, characterized in that: The light concentrator comprises: The light source is located on the light incident surface of the lens, the light exit surface and / or the light incident surface of the lens are provided with a partially frosted surface, and the shape of the lens and the frosted surface are used to change the propagation path of the light beam.

5. The multi-image display screen according to claim 2, characterized in that: The light concentrator comprises: Light-blocking hat brims, both sides of the light source are covered with the light-blocking hat brims; The angle between the two side surfaces of the light-blocking brims facing each other is the range angle; The angle between the lower boundary of the range angle and the horizontal line is the emergence angle.

6. The multi-image display screen according to claim 1, characterized in that: The light control group is a packaging glue, which is coated on the display group, and the packaging glue has light transmittance; The thickness and shape of the packaging glue at different light sources are different.

7. The multi-image display screen according to claim 1, characterized in that: The light control group is a polarizer, and the polarizer covers the light-emitting side of the display array composed of the plurality of display groups; The polarizer can change the refraction direction of light at different positions; or Different polarization filters are arranged on the polarizer corresponding to different light beams.

8. The multi-image display screen according to claim 3, characterized in that: There is a first angle between the center line of the lens and the horizontal line; Different light focusing elements on the same light control group have different first angles.

9. The multi-image display screen according to claim 2, characterized in that: Also includes: A PCB board, on which the display group and the light control group are both arranged; The PCB board is provided with a plurality of hollow holes arranged in an array at intervals; The array of hollow holes and the array of display groups are arranged in a staggered manner.

10. The multi-image display screen according to claim 9, characterized in that: The PCB board is an arc-shaped board, and the array of the display group is a single-row array arranged along the length direction of the PCB board; The plurality of PCB boards are arranged in sequence along the vertical direction; Different PCB boards have different installation angles.

11. The multi-image display screen according to claim 10, characterized in that: The display group is arranged along the circumference of the arc plate.

12. The multi-image display screen according to any one of claims 1 to 11, characterized in that: Also includes: The display groups are coupled to the controller, and the controller controls the multiple sequentially arranged light beams emitted by different display groups at the same time to all be in preset colors.

13. A multiple line display bar, characterized in that: include: PCB board is a curved board; A display group, capable of simultaneously emitting a plurality of sequentially arranged light beams, wherein the plurality of display groups are spaced apart along the length direction of the PCB board; as well as A light control group, located at the light exit side of the plurality of display groups, the light control group being located on the path of the light beam propagation to change the range angle of each light beam propagation; The light beams arranged at the same position on different display groups have the same irradiation area at the preset distance; The light beams arranged at different positions on the same display group have different irradiation areas at a preset distance; There is a distance between two adjacent irradiation areas.

14. The multiple line display bar according to claim 13, characterized in that: The PCB board is provided with a plurality of hollow holes; The display groups and the hollow holes are arranged alternately.

15. The multiple line display bar according to claim 13, characterized in that: The display group includes a plurality of light sources, and the light control group includes a plurality of light focusing elements corresponding to the light sources one by one; The multiple line display bars have multiple different series, and the difference between the multiple line display bars of different series includes at least one of the following situations: The display groups include different numbers of light sources; The vertical distances between two adjacent light sources on the same display group are different; Different vertical distances between two adjacent light sources on the same display group; The structures of the focusing elements of the light control group are different.

16. A multi-image display screen, characterized in that: include: A plurality of multi-line display strips as claimed in any one of claims 13 to 15 arranged in sequence along the longitudinal direction; Different multiple line display strips have different installation angles.

Images