Multi-line display bar and multi-picture display screen

Abstract

A multi-picture display screen, comprising display groups (1) and light control groups (2), wherein the display groups (1) can simultaneously emit a plurality of sequentially arranged light beams; the light control groups (2) are located at a light exit side of the plurality of display groups (1), and the light control groups (2) are located on propagation paths of the light beams to change the divergence angle and emission angle of the propagation of each light beam; under the action of the light control groups (2), the light beams arranged at identical positions on different display groups (1) have the same illumination region at a preset distance; and the light beams arranged at different positions on the same display group (1) have different illumination regions at the preset distance. When light beams arranged at identical positions on all the display groups (1) illuminate the same region at the preset distance, a picture can be viewed. A plurality of light beams corresponding to one display group (1) form a plurality of different illumination regions. There is a spacing between two adjacent illumination regions, such that different pictures do not overlap with each other.

Description

Multi-line display bar and multi-screen display Technical Field

[0001] This invention relates to the field of display device technology, and more particularly to multi-line display bars and multi-screen displays. Background Technology

[0002] Large shopping malls or exhibition halls typically have display screens on each floor to introduce the layout of that floor or show important videos, helping visitors or shoppers quickly find their way. These screens are usually located in specific locations, and the exact locations vary from building to building. For people inside the building who need information through these screens, it's very inconvenient and a poor experience if the screens aren't present or easily found when needed.

[0003] As we all know, multi-story buildings typically have glass windows to maintain indoor transparency. If the display screen were placed outside the building, people inside could simply walk to a window to see it, solving the aforementioned problem. However, this would require multiple display screens corresponding to each floor, which is not only costly but also space-consuming. Alternatively, if a single screen displays information from different floors in rotation, people needing their floor's information would have to wait for it to appear on the screen and retrieve it within a specified time; otherwise, the screen would switch to another floor's information, resulting in a poor user experience.

[0004] Application content

[0005] In view of the above problems, embodiments of the present invention are proposed. The purpose of the embodiments of the present invention is to provide a multi-screen display that can simultaneously display different images at different positions at a preset distance, and the different images do not overlap.

[0006] To achieve this objective, the embodiments of the present invention adopt the following technical solutions:

[0007] A multi-screen display, comprising:

[0008] The display group is capable of emitting multiple sequentially arranged light beams simultaneously, and the multiple display groups are arranged in an array;

[0009] A light control group is located on the light-emitting side of the plurality of display groups. The light control group is located on the path of the light beam propagation to change the range angle and emission angle of each light beam propagation.

[0010] The beams arranged in the same position on different display groups have the same irradiation area at a preset distance;

[0011] The light beams arranged at different positions on the same display group have different illumination areas at a preset distance;

[0012] There is a gap between two adjacent irradiation areas.

[0013] Optionally, the display group includes a plurality of light sources arranged in sequence;

[0014] The light control group includes a plurality of light-concentrating elements that correspond one-to-one with the light source, and the light-concentrating elements are covered on the light-emitting surface of the light source;

[0015] The focusing angles of the different focusing elements are different;

[0016] Different focusing elements allow the beam to be emitted at different angles.

[0017] Optionally, the focusing element includes:

[0018] A lens, located on the light-emitting side of the light source; and

[0019] A light-blocking brim is provided on both sides of the lens, and the light-blocking brim covers the light source;

[0020] The lens extends from the end of the light-blocking brim that is away from the light source.

[0021] Optionally, the focusing element includes:

[0022] A lens, wherein the light source is located on the incident surface of the lens, and the light emitting surface and / or the incident surface of the lens are provided with a partial frosted surface, the shape of the lens and the frosted surface being used to change the path of the light beam propagation.

[0023] Optionally, the focusing element includes:

[0024] A light-blocking brim is provided on both sides of the light source;

[0025] The included angle between the two opposing sides of the two sun-blocking brims is the range angle;

[0026] The angle between the lower boundary of the brim corner and the horizontal line is the emission angle.

[0027] Optionally, the light control group is an encapsulating adhesive coated on the display group, and the encapsulating adhesive is light-transmitting;

[0028] The thickness and shape of the encapsulating adhesive vary at different light sources.

[0029] Optionally, the light control group is a polarizer, which covers the light-emitting side of the display array composed of multiple display groups;

[0030] The polarizer can change the direction of light refraction at different positions; or

[0031] The polarizer has different polarization filters corresponding to different light beams.

[0032] Alternatively,

[0033] The centerline of the lens has a first angle with the horizontal line;

[0034] The first included angles of different focusing elements on the same light control group are different.

[0035] Optionally, it also includes:

[0036] The PCB board, wherein both the display group and the light control group are disposed on the PCB board;

[0037] The PCB board has multiple perforated holes arranged in an array at intervals.

[0038] The array of perforated holes is staggered with the array of the display group.

[0039] Optionally, 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;

[0040] Multiple PCBs are arranged sequentially along the vertical direction;

[0041] The mounting angles of the different PCB boards are different.

[0042] Alternatively, the display group is arranged circumferentially along the arcuate plate.

[0043] Optionally, it also includes:

[0044] The controller is coupled to the display group, and the controller controls multiple sequentially arranged light beams emitted by different display groups at the same time to be of a preset color.

[0045] A multi-screen display, comprising:

[0046] Multiple vertically arranged multi-line display bars, as described above;

[0047] The installation angles of the different multi-line display bars are different.

[0048] Another objective of this invention is to provide a multi-line display bar that can simultaneously display different light bars at different positions at a preset distance, and the different light bars do not overlap.

[0049] To achieve this objective, the embodiments of the present invention adopt the following technical solutions:

[0050] A multi-line display bar, comprising:

[0051] The PCB board is a curved board;

[0052] The display group is capable of simultaneously emitting multiple sequentially arranged light beams, and the multiple display groups are spaced apart along the length of the PCB board; and

[0053] A light control group is located on the light-emitting side of the plurality of display groups, and the light control group is located on the path of the light beam propagation to change the range angle of each light beam propagation;

[0054] The beams arranged in the same position on different display groups have the same irradiation area at a preset distance;

[0055] The light beams arranged at different positions on the same display group have different illumination areas at a preset distance;

[0056] There is a gap between two adjacent irradiation areas.

[0057] Optionally, the PCB board is provided with multiple cutout holes;

[0058] The display group and the cutout holes are arranged alternately.

[0059] Optionally, the display group includes multiple light sources, and the light control group includes multiple light-concentrating elements that correspond one-to-one with each of the light sources;

[0060] The multi-line display bar has several different series, and the differences between the different series of multi-line display bars include at least one of the following:

[0061] The number of light sources included in the display group varies;

[0062] The vertical distance between two adjacent light sources on the same display group is different;

[0063] Different adjacent light sources on the same display group have different vertical distances;

[0064] The structures of the focusing components in the light control group are different.

[0065] A multi-screen display, comprising:

[0066] Multiple vertically arranged multi-line display bars, as described above;

[0067] The installation angles of the different multi-line display bars are different.

[0068] The technical solution provided by this invention allows multiple sequentially arranged light beams to be emitted simultaneously by a display group. A light control group is located on the path of the light beam propagation and can change the range angle and emission angle of each light beam. 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, light beams arranged at the same position on different display groups have the same illumination area at a preset distance, and light beams arranged at different positions on the same display group have different illumination areas at the preset distance. When light beams at the same position on all display groups illuminate one area at the preset distance, a picture can be seen in that area. Thus, multiple light beams corresponding to one display group will form multiple different illumination areas, i.e., multiple different pictures. The spacing between adjacent illumination areas prevents overlap between different pictures. Attached Figure Description

[0069] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0070] Figure 1 is a side view of a display screen provided in an embodiment of the present invention;

[0071] Figure 2 is a schematic diagram of a light beam at different propagation range angles at the same exit angle according to an embodiment of the present invention;

[0072] Figure 3 is a schematic diagram of an embodiment of the present invention, showing the same propagation range angle but different exit angles;

[0073] Figure 4 is an illumination diagram of a display group on a building in a multi-screen display provided in an embodiment of the present invention;

[0074] Figure 5 shows the illumination of the multi-screen display in Figure 4 on the building;

[0075] Figures 6a to 6e are schematic diagrams showing the different number of screens presented when the display screen has 6 display groups corresponding to different floors of the building;

[0076] Figures 7a and 7b are schematic diagrams of the structures of different light-concentrating elements provided in the embodiments of the present invention;

[0077] Figures 8a and 8b are schematic diagrams of the structures of different display screens provided in the embodiments of the present invention;

[0078] Figure 9 is a schematic diagram of the beam propagation angle of the focusing element in Figure 7a under different first included angles;

[0079] Figure 10 is a schematic diagram of light beams from different locations illuminating the same floor according to an embodiment of the present invention;

[0080] Figure 11 is a schematic diagram showing the different installation angles of the display bars at different locations when the same beam at the same position shines on the same floor according to an embodiment of the present invention.

[0081] Figure 12 is a schematic cross-sectional view of the installation of the display strip according to an embodiment of the present invention;

[0082] Figure 13 is a schematic diagram of the cross-section of a display strip provided in an embodiment of the present invention;

[0083] Figure 14 is a schematic diagram of the front structure of a display screen provided in an embodiment of the present invention;

[0084] Figure 15 is a schematic diagram of the structure of a display bar provided in an embodiment of the present invention.

[0085] In the diagram: 1. Display group; 2. Light control group; 3. Hole cutout; 4. PCB board; 11. Light source; 20. Concentrator; 21. Lens; 22. Light-blocking brim; 23. Receiving slot. Detailed Implementation

[0086] To address the problem of a single display screen projecting different images onto windows on different floors of the same building, the inventors of this application attempted to transform the original LED array on the display screen into an LED group array. Each LED group includes multiple light sources capable of simultaneously emitting multiple beams, the number of beams corresponding to the number of floors in the building. By changing the illumination angle and range of each beam, so that the illumination angle of each beam is directed towards the corresponding floor and the illumination range is the height range of the corresponding floor, the LED group array will then present different images for different floors, thus solving the aforementioned problem. The following embodiments are derived from this approach.

[0087] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0088] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0089] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0090] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0091] This application provides a multi-screen display (hereinafter referred to as the display screen) that can display different images at different locations at a preset distance. For example, if there is a multi-story shopping mall at the preset distance, the display screen can display images such as the layout of the shops on each floor and other information related to that floor. Users only need to find the location of their window to obtain information about their floor through the display screen, thereby avoiding the problem of users getting lost due to not being able to find the display screen for their floor and improving the user's shopping experience.

[0092] Specifically, in some embodiments of this application, referring to Figure 1, the display screen includes a display group 1 and a light control group 2. The display group 1 can simultaneously emit multiple sequentially arranged light beams, and the light control group 2 is located on the path of the light beam propagation to change the range angle and exit angle of each light beam. The range angle is the angle between the upper and lower boundaries of a light beam, such as angle α in Figure 2a, angle β in Figure 2b, and angle θ in Figure 2c. The exit angle is the angle between the lower boundary of a light beam and the horizontal line, such as angle γ in Figure 3a, angle δ in Figure 3b, and angle ε in Figure 3c. Referring further to Figures 2 and 3, by changing the exit angle of the light beam, the light beam can only illuminate a specified location at a preset distance, for example, a specified floor height range of a multi-story building (for ease of description, the building in the following text 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 the specified range of the preset distance, such as the specified floor height range of the building.

[0093] More specifically, as shown in Figure 4, suppose that one of the display groups 1 on the screen can simultaneously emit red, green, and blue light beams. The building has three floors. The red light beam's emission angle is towards the first floor, and its propagation range is the height of the first floor. Therefore, a person on the first floor looking at display group 1 will see it emitting red light. The green light beam's emission angle is towards the second floor, and its propagation range is the height of the second floor. Therefore, a person on the second floor looking at display group 1 will see it emitting green light. The blue light beam's emission angle is towards the third floor, and its propagation range is the height of the third floor. Therefore, a person on the third floor looking at display group 1 will see it emitting blue light.

[0094] In the embodiments of this application, multiple display groups 1 are arranged in an array, and a light control group 2 is located on the light-emitting side of the multiple display groups. Under the action of the light control group 2, the light beams arranged at the same position on different display groups 1 illuminate the same area at a preset distance, while the light beams arranged at different positions on the same display group 1 illuminate different areas at the preset distance. That is to say, the light beams at the same position on all display groups 1 on the display screen illuminate one area at the preset distance, so a picture can be seen in that area. Therefore, multiple light beams corresponding to one display group 1 will form multiple different illumination areas, i.e., multiple different pictures. There is a gap between two adjacent illumination areas, and the gap is greater than or equal to 0, so that different pictures will not overlap.

[0095] Please refer to Figure 5. Using the example of a three-story building, we will illustrate this further, assuming that each display group 1 emits three beams of light in sequence (red, green, and blue). Assume that all display groups 1 on the screen emit three beams from top to bottom: an upper beam, a middle beam, and a lower beam. The upper beam of each display group 1 emits light from the direction of the third floor, with an illumination range equal to the height of the third floor. The middle beam of each display group 1 emits light from the direction of the second floor, with an illumination range equal to the height of the second floor. The lower beam of each display group 1 emits light from the direction of the first floor, with an illumination range equal to the height of the first floor. If the pattern formed by the upper beams of all display groups 1 is a circle, the pattern formed by the middle beams is a triangle, and the pattern formed by the lower beams is a square, then a person on the third floor will see a circle, a person on the second floor will see a triangle, and a person on the first floor will see a square.

[0096] Figures 6a to 6e are optical path diagrams showing the different numbers of images displayed by the five display groups 1 on the display screen for different floors when the building has 6, 5, 4, 3, and 2 floors respectively. Taking Figures 6e and 6d as examples, refer to Figure 6e. The building has two floors, and the display screen has five display groups 1 from top to bottom: display group A, display group B, display group C, display group D, and display group E. Each of these five display groups 1 emits red and blue light beams. The red light beams from all five display groups 1 are emitted towards the first floor, and the range angle of the red beams is the height range of the first floor. The blue light beams from all five display groups 1 are emitted towards the second floor, and the range angle of the blue beams is the height range of the second floor. Therefore, a person on the first floor will see a red screen, while a person on the second floor will see a blue screen. Referring to Figure 6d, the building has three floors, and the display screen comprises five display groups (Group A, Group B, Group C, Group D, and Group E) from top to bottom. Each of these five display groups emits beams of red, blue, and green light. The red beams from all five display groups point towards the first floor, and their range is equal to the height of the first floor. The blue beams from all five display groups point towards the second floor, and their range is equal to the height of the second floor. The green beams from all five display groups point towards the third floor, and their range is equal to the height of the third floor. Therefore, a person on the first floor will see a red screen, a person on the second floor will see a blue screen, and a person on the third floor will see a green screen, and so on. From Figures 6a to 6e, it can be seen that if every floor of the building can see the corresponding image on the display screen, then each display group (Group 1) must emit the same number of beams corresponding to the number of floors in the building.

[0097] In some embodiments of this application, the display group 1 includes a plurality of tri-color intersecting imaging light sources 11 (hereinafter referred to as light sources 11) arranged in sequence. The light sources 11 present the desired color by intersecting red, green, and blue, thereby emitting a wider range of colors in the light beams to ensure that the colors of the image displayed on the screen are more realistic. Optionally, the light source 11 is a light-emitting chip, and one display group 1 represents one pixel. Each light source 11 corresponds one-to-one with a light beam; one light source 11 can emit one light beam, and the number of light beams emitted is determined by the number of light sources included in the display group 1.

[0098] In some embodiments of this application, one possible structure for the light control group 2 is a one-to-one correspondence between the light control group and the display group 1. The light control group 2 includes multiple light-concentrating elements 20 corresponding to light sources. The light-concentrating elements 20 are covered on the light-emitting surface of the light source 11. Different light-concentrating elements 20 have different focusing angles, so that different beams have different range angles. Different light-concentrating elements 20 allow the beams to exit at different angles, so that the beams have different exit angles. Thus, when the 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, while when looking at the light source 11 from the second floor of the building, the light source 11 emits green light.

[0099] Further, referring to Figure 7a, in some embodiments of this application, the focusing member 20 includes a lens 21 and a light-blocking visor 22. The lens 21 is located on the light-emitting side of the light source 11. The light beam emitted by the light source 11 can enter the lens 21 and be refracted within it, thereby changing the beam propagation range angle when it exits through the lens 21. Light-blocking visors 22 are provided on both sides of the lens 21, covering the light source 11 and thus restricting the light emitted by the light source 11 to only pass through the area of ​​the lens 21. In other words, the focusing member 20 has a receiving groove 23 on the side facing the light source 11, with the light source 11 located in the receiving groove 23. The groove walls on both sides of the receiving groove 23 serve as light-blocking visors 22 to block the propagation of the light emitted by the light source 11, while the groove wall facing the light source 11 serves as the lens 21, ensuring that the light emitted by the light source 11 can only pass through the lens 21. The end of the light-blocking brim 22 facing away from the light source 11 extends out to the lens 21, thereby limiting the range angle of the light beam refracted by the lens 21. Figure 7a shows the exit angle of the light beam emitted by the light source 11 within the range of the lens 21 without the light-blocking brim 22 and the 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 this embodiment also includes a PCB board 4, on which the display group 1 and the light control group 2 are both disposed. The PCB board 4 can transmit electrical energy and signal commands to the display group 1 so that the display group 1 can perform 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. In this case, if the exit angle of each beam is different, it can be achieved by setting the angle between the center line of the lens 21 and the horizontal line. Therefore, referring to Figure 9, in some embodiments of this application, the center line of the lens 21 has a first angle with the horizontal line, and the first angle of different focusing elements 20 on the same light control group 2 is different. This allows the lens 21 to be positioned at different angular locations on the light source 11, while the light source 11 can only emit light from the lens. By changing the position of the first included angle, the exit angle of the light beam can be made different. If the multiple images displayed on the screen are arranged sequentially along the height direction, then the first angle of the light-concentrating element 20 at the same position in different rows of the array of light-concentrating groups 2 will be different. For example, the first angle of the first light-concentrating element 20 on the light-concentrating group 2 located in the third column of the first row is different from the first angle of the first light-concentrating element 20 on the light-concentrating group 2 located in the third column of the tenth row.

[0100] Alternatively, referring to Figure 8a, in some other embodiments of this 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 and light-outcident surfaces, thereby changing the propagation path. The lens 21 is provided with a frosted surface, which can be regarded as being composed of multiple tiny planes pieced together in random directions. When the light passes through the frosted surface, it becomes diffused light through the reflection of numerous tiny planes. In other words, the frosted surface can disperse the light propagating along a specific path direction into light oriented in all directions. This prevents the light from continuing to propagate along the original path. By utilizing this, reasonably setting the position of the frosted surface on the light-outcident or light-incident surface of the lens 21, or on both the light-outcident and light-outcident surfaces, can filter out the light emitted by the light source 11 that is oriented in the unwanted direction, leaving only the light propagating in the desired direction to form the final light beam, thereby changing the exit angle of the light beam. By changing the shape of lens 21, the light beam is refracted at the light-emitting surface to change the beam's range angle and enhance its brightness.

[0101] Alternatively, referring to Figure 7b, in some other embodiments of this application, the focusing element 20 includes a light-blocking brim 22, which blocks light and prevents it from passing through. Light-blocking brims 22 are provided on both sides of the light source 11. The opposing sides of the two light-blocking brims 22 form a light propagation channel, which gradually widens from the light source 11 towards the direction away from it. The angle of the light propagation channel is the brim angle, which limits the range angle of light propagation; that is, the range angle of the light beam can be changed by altering 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 exits, i.e., the exit angle.

[0102] In other embodiments of this application, another possible structure for the light control group 2 is that it corresponds to the entire display screen and is located on the light-emitting side of multiple display groups 1. For example:

[0103] Please refer to Figure 8b. In some embodiments of this application, another possible structure for the light control group 2 is that the light control group 2 is an encapsulating adhesive coated on the display group. This not only isolates the light source 11 from the outside world, protecting the light source 11 and improving its heat dissipation, but also, because the encapsulating adhesive has good light transmittance, by changing the shape and thickness of the encapsulating adhesive at the position of the light source 11, the angle and range of light entering and exiting the encapsulating adhesive can be changed, thereby determining the exit angle and range angle of the light beam.

[0104] Alternatively, referring to Figure 8b, in some other embodiments of this application, the light control group 2 can also be structured as a polarizer covering the light-emitting side of a display array composed of multiple display groups. The polarizer is composed of multiple light-transmitting layers, with a light-transmitting structure of different shapes on the middle layer. This light-transmitting structure corresponds to the light source 11, and according to the principle of light refraction, it causes the light to refract at a specific angle, thereby determining the light emission angle and range angle of the beam. Alternatively, the middle layer may be covered with multiple different tiny polarizing filters corresponding to different light sources, allowing only light in specific directions to pass through, while light in other directions is blocked or scattered, thereby determining the light emission angle and range angle of the beam.

[0105] The control group only needs to be able to change the exit angle and range angle of the beam. As for the specific structure of the beam control group, this embodiment does not make specific limitations.

[0106] Referring to Figure 10, beams 1, 2, and 3 are positioned differently on the display screen. Beam 1 has a propagation angle of A corresponding to the 5th floor, beam 2 has an angle of B corresponding to the 5th floor, and beam 3 has an angle of C corresponding to the 5th floor. The differences between angles A, B, and C are not significant. Since 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 range on the same floor will differ. However, because the differences are small and the display range includes the eye area of ​​people of different heights, people of different heights on the 5th floor can see the corresponding image of the 5th floor displayed on the screen. In Figure 10, if the beams at different heights are to all be directed towards the 5th floor, the difference in the exit angles of the different beams is relatively large. For example, the exit angle of beam 1 is c, the exit angle of beam 2 is b, and the exit angle of beam 3 is a. Clearly, angle a is greater than angle b, which is greater than angle c. In other words, if you want beams at different locations to have the same illumination area at the same time, you only need to change the exit angle of the beam, while the range angle of the beam can be set to be the same.

[0107] Based on the above principle, and referring to Figure 11, in some embodiments of this application, the PCB board 4 is set as an arc-shaped board or a cylindrical tube, and the array of display groups 1 is a single-row array arranged along the length of the PCB board 4. This is equivalent to multiple display groups 1 being spaced apart along the length of the PCB board 4, forming a display strip capable of simultaneously displaying multiple lines of different colors. Multiple PCB boards 4 are arranged sequentially in the vertical direction, i.e., the display strips are arranged sequentially in the vertical direction, forming a display screen. Referring to Figure 12, the different installation angles of the different PCB boards 4, i.e., the different installation angles of the different display strips, satisfy the requirement that the beams at the same position on the display strips at different heights have different emission angles. For example, the emission angle of the beam generated by the first light source 11 of the third column of the first row of display strips is different from the emission angle of the beam generated by the first light source 11 of the third column of the tenth row of display strips. This ensures that the illumination area of ​​the beams generated by the light source 11 at the same position on the display strips at different heights corresponds to the same floor, thus satisfying the requirement that the display screen can display different images corresponding to different floors. Since the beams at the same position on different display strips have the same range and angle, the difference in illumination area on the same floor is negligible. Therefore, all focusing elements 20 can be set to have the same focusing angle. By setting different installation angles of the display strips, the different emission angles of different beams can be met, so that different light sources 11 can correspond to the same focusing element 20, and the light control group 2 includes multiple identical focusing elements 20. Thus, the display strips required for the same screen are of the same specification. By changing the installation angle of the display strips at different positions, the entire display screen can present different images on different floors. In production, only multiple display strips of the same specification need to be produced, and these strips are arranged in sequence. By changing the installation angle of the display strips at different positions, the required display screen can be obtained, thereby reducing the manufacturing difficulty of the entire display screen, lowering costs, and shortening the processing cycle.

[0108] In this embodiment, please refer to Figure 13. Since the PCB board 4 is arc-shaped or cylindrical, the display group 1 is set to be arranged circumferentially around the PCB board 4. Therefore, the first included angle of the different light-concentrating elements 20 corresponding to the light control group 2 of the display group 1 is different. As a result, the emission angle of the light source 11 at different arrangement positions on the same display group 1 is different. The emission angle of different light sources 11 on a display group 1 can be adjusted by changing the vertical distance between two adjacent light sources 11 on the same display group 1. This scenario involves displaying the same image on two different displays corresponding to different floors of the same building. For example, in Figure 13a, the vertical distance between two adjacent light sources 11 in display group 1 of the display bar is L, while in Figure 13b, the vertical distance is F. Since L and F are different, the display bar in Figure 13a corresponds to the 1st, 3rd, 5th, 7th, and 9th floors of the building, displaying the corresponding colored lines. The display bar in Figure 13b corresponds to the 3rd, 4th, 5th, 6th, and 7th floors of the same building, displaying the corresponding colored lines. In other words, by changing the vertical distance between two adjacent light sources 11 of display group 1 on the curved PCB board 4, the height position of the illuminated area of ​​the same colored line on the building can be changed.

[0109] It's understandable that building heights are typically uniform, meaning the distance between the display screen and the building is fixed. Different buildings have the same number of floors, and the number of images displayed on the screen corresponds to the number of floors. Alternatively, although different buildings may have different numbers of floors, the number of images displayed on the screen and the number of floors corresponding to different images may be the same. For example, building A has 8 floors, and building B has 5 floors. Display screen B needs to display different images to the 5 floors of building B, while display screen A needs to display different images to floors 1-5 of building A. In both of these scenarios, the same type of display strip can be used. For buildings with varying floor heights, different numbers of images to display, different floors corresponding to the same image, and different distances between the display screen and the building, the required number of images and the illumination area (i.e., field of view) for different buildings can be flexibly customized by changing the number of light sources 11 in display group 1, the distance between two adjacent light sources 11, and whether the distance between two adjacent light sources 11 in the same display group 1 is the same or different; and by adjusting the structure of the focusing element 20 on the light control group 2. This allows for flexible production of display bars to meet the needs of different number of images and different field of view scenarios. To facilitate display screen manufacturing and further reduce costs, different series of display bars can be designed. The differences between different series of display bars include at least one of the following: different numbers of light sources 11 in display group 1; different vertical distances between two adjacent light sources 11; different vertical distances between two different adjacent light sources 11 in the same display group 1; and different structures of the focusing element 20 in the light control group 2. This allows the display bars to become standardized components, enabling mass production and reducing manufacturing costs and time. Of course, display bars can also be customized to meet specific customer needs.

[0110] In some embodiments of this application, the display screen further includes a controller, with display group 1 coupled to the controller. The controller controls multiple sequentially arranged light beams emitted by different display groups 1 at the same time to all be of a preset color. This allows the display screen to display different images simultaneously.

[0111] Typically, displays capable of projecting images onto buildings are relatively large. To prevent the display from obstructing the view of people inside the building, in some embodiments of this application, the PCB board 4 has multiple perforated holes 3 arranged in an array at intervals. The array of perforated holes 3 is staggered from the array of display group 1. If the PCB board 4 is a flat board, as shown in Figure 14, the array of perforated holes 3 consists of multiple rows and columns. If the PCB board 4 is an arc-shaped board on a display strip, as shown in Figure 15, the array of perforated holes 3 consists of a single row and multiple columns. The perforated holes 3 and display group 1 are arranged alternately. This makes the display screen transparent, allowing people inside the building to see the view on the side of the display screen away from the building. The display screen does not obstruct the view of the building, and people on the side of the display screen away from the building can look at the building through the display screen.

[0112] It is understandable that the more display groups 1 on a PCB board 4, the better the image displayed on the screen. Therefore, the smaller the space occupied by the display groups 1, the better. Compared to different light sources 11 on the same display group 1 arranged in circles, hexagons, squares, triangles, etc., the space occupied by different light sources 11 arranged in a vertical or horizontal line is smaller. This allows sufficient space on the PCB board 4 to set the cutout holes 3. As shown in Figure 14, 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 a vertical direction, making the display group 1 vertical. A row of cutout holes 3 is provided between two adjacent rows of display groups 1, while no row of cutout holes is provided between two adjacent rows of display groups 1, so that the screen can accommodate more display groups 1 to improve the image display effect. Of course, in other embodiments, in order to improve the transparency of the screen, a row of cutout 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 display group 1 in which multiple light sources 11 are arranged in a horizontal line. As long as it can meet the screen requirements of the customer, this embodiment does not make specific limitations.

[0113] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multiple picture display screen, characterized by The display group can simultaneously emit a plurality of sequentially arranged light beams, and a plurality of the display groups are arranged in an array. The light control group is located on the light emitting side of the plurality of display groups, and the light control group is located on the path of the light beam propagation to change the range angle and the exit angle of the propagation of each light beam. The light beams arranged at the same position on different display groups have the same irradiation area at a preset distance. The light beams arranged at different positions on the same display group have different irradiation areas at a preset distance. The adjacent two irradiation areas have a spacing. The display group includes a plurality of light sources arranged sequentially.

2. The multi-picture display screen of claim 1, wherein, The light control group includes a plurality of light collectors corresponding to the light sources, and the light collector is arranged on the light emitting surface of the light source. The light collection angles of different light collectors are different. The angles of the light beams emitted by different light collectors are different. The light collector includes:

3. The multi-picture display screen of claim 2, wherein, A lens located on the light emitting side of the light source; and A light blocking brim, the light blocking brim is arranged on both sides of the lens, and the light blocking brim covers the light source. The end of the light blocking brim away from the light source protrudes out of the lens. The light collector includes:

4. The multi-picture display screen of claim 2, wherein, A lens, the light source is located on the light incident surface of the lens, and a part of the light scattering surface is arranged on the light emitting surface and / or the light incident surface of the lens, and the shape of the lens and the light scattering surface are used to change the path of the light beam propagation. The light collector includes:

5. The multi-picture display screen of claim 2, wherein, A light blocking brim, the light source is covered by the light blocking brim on both sides; The included angle between the opposite sides of the two light blocking brims is the range angle. The included angle between the lower boundary of the range angle and the horizontal line is the exit angle. The light control group is encapsulation glue coated on the display group, and the encapsulation glue has light transmission; 6. The multi-picture display screen of claim 1, wherein, The thickness and shape of the encapsulation glue at different light sources are different. The light control group is a polaroid, and the polaroid covers the light emitting side of the display array composed of a plurality of display groups; 7. The multi-picture display screen of claim 1, wherein, The polaroid can change the refraction direction of light at different positions; or Different polarization filters are arranged on the polaroid corresponding to different light beams.

8. The multi-picture display screen according to claim 3, wherein: The center line of the lens and the horizontal line have a first included angle; The first included angles of different light collectors on the same light control group are different. Further comprising:

9. The multi-picture display screen of claim 2, wherein, A PCB board, the display group and the light control group are arranged on the PCB board; A plurality of hollow holes arranged in an array are arranged on the PCB board in a staggered manner. The array of the hollow hole and the array of the display group are arranged in a staggered manner. The PCB board is an arc-shaped board, and the array of the display group is a single array arranged along the length direction of the PCB board; 10. The multi-picture display screen of claim 9, wherein, A plurality of PCB boards are sequentially arranged in the vertical direction; The mounting angles of different PCB boards are different. The display group is arranged along the circumferential direction of the arc-shaped board.

11. The multi-picture display screen of claim 10, wherein, Further comprising:

12. The multi-picture display screen according to any one of claims 1 to 11, wherein, A controller, the display group is coupled with the controller, and the controller controls the plurality of sequentially arranged light beams emitted by different display groups at the same time to be of a preset color. The PCB board is an arc-shaped board.

13. A multi-line display bar, characterized by ​ ​ A display group capable of simultaneously emitting a plurality of sequentially arranged light beams, a plurality of the display groups being arranged at intervals along the length direction of the PCB; And A light control group located on the light emitting 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 a preset distance; The light beams arranged at different positions on the same display group have different irradiation areas at a preset distance; The adjacent two irradiation areas have a spacing.

14. The multi-line display bar of claim 13, wherein, A plurality of hollow holes are arranged on the PCB; The display groups and the hollow holes are arranged alternately.

15. The multi-line display bar of claim 13, wherein, The display group includes a plurality of light sources, and the light control group includes a plurality of light collectors corresponding to the light sources one by one; The multi-line display strip has a plurality of different series, and the difference between different series of the multi-line display strip includes at least one of the following cases: The number of light sources included in the display group is different; The vertical distance between two adjacent light sources on the same display group is different; The vertical distance between two adjacent light sources on the same display group is different; The structure of the light collector of the light control group is different.

16. A multiple picture display screen, characterized by Comprise: A plurality of multi-line display strips according to any one of claims 13-15 arranged sequentially along the longitudinal direction; The installation angles of different multi-line display strips are different.

Images