Road surface buried type advertising block

Abstract

To provide a road surface buried type advertising block that is placed at a road surface to express advertising, and also seeks to improve luminance by converting LED light into linear light with an optical technique to minimize a light loss and preventing an interference phenomenon by cutting off the light diffused to side surfaces to reduce electric power consumption.SOLUTION: A road surface buried type advertising block includes a light-emitting part that is formed with multiple LEDs 11 and expresses an advertising image, and a main frame that comprises a power supply part and a control circuit and is placed at a road surface to support the light-emitting part. The light-emitting part includes a light-emitting part frame 12 where multiple LEDs are placed at a constant distance in grid-like fashion, partition walls 13 that partitions each LED so that interference does not occur due to diffusing of LED light to side surfaces, outer lenses 14 that are placed at an upper side of the light-emitting part frame and express LED light to the upper side, and inner optical lenses 15 that are placed between the partition walls and convert scattered light generated at the LED to linear light towards the outer lens.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a road-buried advertising block, and more particularly, to a road-buried advertising block that is installed on the road surface to display advertisements, and that minimizes light loss by converting LED light into linear light using optical technology, and prevents interference by blocking light that diffuses to the sides, thereby reducing power consumption and improving brightness. [Background technology]

[0002] Road-buried advertising blocks are installed on the ground, such as on the road surface, to display advertisements, and are characterized by their excellent advertising effectiveness for pedestrians.

[0003] Such road-embedded advertising blocks include a light-emitting unit formed of a number of LEDs that displays advertising images, and a main frame that is installed on the road surface and supports the light-emitting unit, and is equipped with a power supply unit and a control circuit.

[0004] As shown in Figures 4 to 6, the light-emitting unit (100) constituting a conventional road-buried advertising block includes a light-emitting unit frame (120) in which a number of LEDs (110) are arranged in a grid pattern at regular intervals, partitions (130) that separate the LEDs (110), and an outer lens (140) installed on the upper side of the light-emitting unit frame (120) and that projects the light of the LEDs (110) upward.

[0005] The conventional road-embedded advertising blocks described above are designed to display advertisements on the road surface by shining LED light upward from the light-emitting part through an outer lens.

[0006] However, the conventional road-embedded advertising blocks mentioned above had a problem in that the LED light was dissipated radially and not concentrated on a circular pixel point, resulting in a lot of light loss and low brightness, which in turn increased power consumption.

[0007] In addition, because the partitions separating the LEDs were low in height, the light from the LEDs was diffused and interfered with the light from adjacent LEDs, which meant that advertising images were sometimes not displayed clearly, which was another problem.

[0008] On the other hand, as a result of searching for prior art related to the present invention, no patent documents were found in the same technical field as the present invention, and the following patent documents were searched for as prior art in adjacent technical fields.

[0009] Patent Document 1 discloses an LED road advertising board that includes a smart device that uses a smartphone and a tablet PC to transmit advertising images and advertising videos via Bluetooth or Wi-Fi short-range wireless communication; and a road advertising board that is buried in a rectangular structure at a certain depth on the road surface of a roadway, is supplied with power via a signal light power cable, receives and stores advertising images and advertising videos via the smart device and the short-range wireless communication, and outputs LED video advertisements and image advertisements at a set time period according to the request of an advertiser, and uploads LED advertising images or LED advertising videos to the LED road advertising board via Bluetooth or Wi-Fi communication with a smartphone, and displays LED video advertisements and general panel advertisements.

[0010] Patent Document 2 discloses an ultra-thin road advertising device that is attached to the road surface of a subway or any other location, and is composed of a thin box body with a light guide plate having an insertion groove formed on the bottom surface; a lighting device is attached inside the insertion groove and sealed with a filler such as synthetic resin or resin; the bottom surface of the light guide plate is sealed with waterproof paper, and a laminated advertising film and a non-slip sheet are attached to the top surface of the light guide plate in that order; and a frame that is configured to wrap around the sides and bottom of the light guide plate, thereby maximizing the advertising effect while not interfering with pedestrian traffic and being easy to install and maintain.

[0011] Patent Document 3 discloses a braille block that is embedded in the ground and is composed of an upper or surface layer of a transparent material, on one surface of which linear or dot-shaped protrusions are formed in a convex shape at a certain interval and width, and on the other surface of which the corresponding portions are formed in a concave shape, and a plate layer that is installed on the back surface of the upper layer and on which directional signs or advertising papers can be attached. By performing a laminate coating process on the upper layer and the plate layer as a single unit, it is possible to provide not only a simple guiding sign for disabled people, but also an aesthetic feeling for people other than disabled people, and it can serve not only as an advertising effect but also as a guide board to guide people to their destination in underground passages, large buildings, boarding and alighting areas, intersections, etc. [Prior art documents] [Patent documents]

[0012] [Patent Document 1] Korean Patent Publication No. 10-2018-0122569 [Patent Document 2] Korean Registered Utility Model No. 20-0390883 [Patent Document 3] Korean Registered Utility Model No. 20-0340178 Summary of the Invention [Problem to be solved by the invention]

[0013] The present invention has been devised to solve the problems of the prior art. The purpose of the present invention is to provide a road-buried advertising block that is installed on the road surface to display advertisements, and that uses optical technology to convert LED light into linear light, minimizing light loss and blocking light that is diffused to the sides to prevent interference, thereby reducing power consumption and improving brightness. [Means for solving the problem]

[0014] In order to achieve the above-mentioned object, the present invention provides a road-embedded advertising block including a light-emitting unit formed by a number of LEDs and displaying advertising images, and a main frame equipped with a power supply unit and a control circuit and supporting the light-emitting unit installed on the road surface, wherein the light-emitting unit includes a light-emitting unit frame in which a number of LEDs are installed in a grid pattern at regular intervals; partitions that separate each LED to prevent the light from the LEDs from diffusing to the sides and causing interference; an outer lens installed on the upper side of the light-emitting unit frame and directing the light from the LEDs upwards; and an inner optical lens installed between the partitions and changing the scattered light generated by the LEDs into linear light toward the outer lens.

[0015] In addition, according to the road-buried advertising block of the present invention, the partition wall is installed at a certain height on the light-emitting frame to separate each LED, and the inner optical lens is formed concavely facing upward.

[0016] Furthermore, the road-buried advertising block of the present invention is characterized in that a diffuser lens for diffusing the light of the LED is installed at the bottom of the outer lens.

[0017] Furthermore, according to the road-embedded advertisement block of the present invention, the diffuser lens is formed in a three-dimensional structure.

[0018] In addition, according to the road-buried advertisement block of the present invention, the diffuser lens is formed in a rectangular structure and is formed in a size of 4.81×4.81 mm. Effect of the Invention

[0019] The road-buried advertising block of the present invention is equipped with an inner optical lens in the light-emitting section that changes the light emitted from the LED into linear light, minimizing loss due to light diffusion, thereby reducing power loss and improving the brightness of advertising images.

[0020] In addition, according to the road-buried advertising block of the present invention, the partitions separating the LEDs are formed at a fixed height, and an inner optical lens that is concave facing upward is installed between the partitions, so that the partitions block diffused light, not only preventing interference but also improving the quality of the advertising image.

[0021] In addition, according to the road-buried advertising block of the present invention, a diffuser lens is provided on the bottom surface of the outer lens, so that the linear light passing through the inner optical lens is diffused over the entire surface of the outer lens, thereby improving the quality of the advertising image. [Brief description of the drawings]

[0022] [Figure 1] FIG. 1 is a cutaway perspective view illustrating a road-surface embedded advertising block according to the present invention. [Diagram 2] FIG. 2 is an enlarged view showing a light-emitting portion of a road-embedded advertisement block according to the present invention. [Diagram 3] FIG. 3 is a reference diagram showing the path of light emitted from an LED in a road-buried advertising block according to the present invention. [Figure 4] FIG. 4 is a cutaway perspective view showing a part of a light-emitting portion of a conventional road-surface embedded advertising block. [Diagram 5] FIG. 5 is an enlarged view showing a light-emitting portion of a conventional road-surface embedded advertising block. [Figure 6] FIG. 6 is a reference diagram showing the path of light emitted from an LED in a conventional road-embedded advertising block. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0023] The road-surface embedded advertisement block according to the present invention will now be described with reference to the accompanying drawings.

[0024] The terms used in the present invention are terms defined in consideration of their functions in the present invention, and may vary depending on the intentions or practices of a user or operator. Therefore, the definitions of these terms should be interpreted according to the meanings and concepts consistent with the technical matters of the present invention.

[0025] Furthermore, the embodiments of the present invention do not limit the scope of the invention, but are merely illustrative of the elements presented in the claims of the present invention, and are embodiments that include elements that are included in the technical idea throughout the specification of the present invention and can be replaced as equivalents with the elements in the claims.

[0026] In the following embodiments, optional terms are used to distinguish one component from another, and the components are not limited to the terms.

[0027] Therefore, in describing the present invention, detailed descriptions of related publicly known techniques that may unnecessarily obscure the gist of the present invention will be omitted.

[0028] FIG. 1, for explaining a preferred embodiment of the present invention, is a cutaway perspective view illustrating a road-buried advertising block according to the present invention, FIG. 2 is an enlarged view showing the light-emitting portion of the road-buried advertising block according to the present invention, and FIG. 3 is a reference diagram showing the path of light emitted from an LED in the road-buried advertising block according to the present invention.

[0029] As shown in Figures 1 to 3, the road-embedded advertising block according to the present invention comprises a light-emitting unit (10) formed of a number of LEDs (11) for displaying advertising images, and a main frame (20) that is installed on the road surface and supports the light-emitting unit (10), and that is equipped with a power supply unit and a control circuit.

[0030] The light emitting section (10) includes a number of LEDs (11), a light emitting section frame (12), a partition wall (13), an outer lens (14) and an inner optical lens (15).

[0031] The LEDs (11) generate light for forming advertising images and irradiate them upward, and are installed in a grid pattern at regular intervals on the light-emitting frame (12). The light-emitting frame (12) is installed on the upper side of the main frame (20), and a large number of the LEDs (11) are installed on the upper bottom surface.

[0032] The partitions (13) are used to separate the LEDs (11) so that the light emitted from the LEDs (11) does not diffuse to the sides and cause interference, and are installed at a certain height on the light-emitting frame (12).

[0033] The outer lens 14 is installed on the upper side of the light emitting frame 12 to emit the light of the LED 11 upward, and is installed so that the upper surface is at the same height as the bottom surface. The outer lens 14 is preferably made of a PC material having excellent light transmittance.

[0034] The inner optical lens (15) changes the scattered light generated by the LED (11) into linear light proceeding toward the outer lens (14), is formed concavely facing upward, and is installed between the partitions (13).

[0035] The diffuser lens (16) is installed at the bottom of the outer lens (14) and diffuses the light from the LED (11), and is preferably formed in a three-dimensional structure with an area that increases toward the top. It is more preferable that the diffuser lens (16) is formed with a square cross section and a size of 4.81 x 4.81 mm in order to expand the linear light over the entire surface.

[0036] The road-buried advertising block of the present invention constructed as described above is equipped with an inner optical lens on the upper side of the LED, which changes the light emitted from the LED into linear light and irradiates it upward, and the partitions installed between the LEDs block the light diffusing outward to prevent interference with the light of other LEDs, thereby minimizing light loss and reducing power consumption, as well as improving the brightness of the advertising image even with the same amount of power.

[0037] Although the present invention has been described and illustrated in relation to several embodiments for illustrating the technical idea of ​​the present invention, the present invention is not limited to the configuration and operation as described above, and it will be well understood by those skilled in the art that many changes and modifications can be made to the present invention without departing from the scope of the technical idea described in the description of the present invention. Therefore, all such appropriate changes and modifications and equivalents should be considered to be within the scope of the present invention. [Explanation of symbols]

[0038] 10 Light-emitting part 11 LED 12 Light-emitting frame 13...Bulkhead 14. Outer lens 15···Inner optical lens 16···Diffuser lens 20. Mainframe

Claims

[Claim 1] The light emitting unit (10) A light-emitting frame (12) in which a large number of LEDs (11) are arranged in a grid pattern at regular intervals; Partitions (13) that separate the LEDs (11) so that light from the LEDs (11) does not diffuse to the sides and cause interference; An outer lens (14) that is installed on the upper side of the light-emitting frame (12) and emits the light of the LED (11) upward; and and an inner optical lens (15) that is installed between the partitions (13) and changes the scattered light generated by the LEDs (11) into linear light toward the outer lens (14). The road-embedded advertising block includes the light-emitting unit (10) formed by a number of the LEDs (11) and displaying an advertising image, and a main frame (20) that is equipped with a power supply unit and a control circuit and is installed on the road surface to support the light-emitting unit (10).

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