LED (light-emitting diode) colorful display module capable of laterally emitting light

Abstract

The utility model discloses an LED colorful display module capable of emitting light laterally. The LED colorful display module comprises a cover body and a circuit board. The cover body is provided with a mounting cavity with a downward opening, and the top surface of the cover body is concavely provided with concave positions matched with the displayed characters; a plurality of first lamp beads are arranged on the circuit board, and the arrangement of the plurality of first lamp beads conforms to the display characters; an arc-shaped through groove is formed in the edge of the front side of the top face of the cover body and communicated with the installation cavity. The LED colorful lamp beads are adopted as the second lamp beads and the first lamp beads, so that the light emitting colors of the lamp beads are variable, more lamp beads do not need to be installed, the cost and the manufacturing difficulty are effectively reduced, meanwhile, the space is saved, the light emitting uniformity is guaranteed, meanwhile, the arc-shaped through groove is formed in the edge of the front side of the top face of the cover body, and the light emitting efficiency is improved. The arc-shaped light guide strips and the second lamp beads are arranged in a matched mode, so that front-face, side-face and curved-face light emitting is achieved, the light emitting display effect is enriched, and the possibility of structural design is increased.

Description

Technical Field

[0001] The utility model relates to the technology of LED display module field, in particular to an LED multi-color side-emitting display module. Background Art

[0002] The display screen of household appliances has functions such as touch, display, and control, and is used in washing machines, refrigerators, dishwashers, etc. With the reduction of costs and the requirement for small size, the functions of display modules are constantly being improved. The main structure of the existing display module includes components such as a plate cover, a circuit board, and a glass cover. This display module uses an LED digital tube, which is composed of multiple light-emitting diodes packaged together to form an "8"-shaped device, which can be installed at the location where the cavity is set. By inputting relative currents to its different pins, it will light up, thereby displaying numbers that can display all parameters that can be represented by numbers, such as time, date, temperature, etc. Due to its low price and simple use, it is widely used in electrical appliances, especially household appliances, such as air conditioners, water heaters, refrigerators, etc.

[0003] Since the digital tube has another characteristic of being thick and large in size, it requires a larger space for installation, and the panel cover needs to be raised to accommodate the digital tube, which makes the entire display module larger in size, and the panel cover uses more materials, which increases the cost. For this reason, another display module has emerged, whose main structure includes a cover body and a circuit board; the cover body has an installation cavity with an opening facing downward, and a concave position corresponding to the display characters is concavely provided on the top surface of the cover body; the circuit board is fixed in the installation cavity, and a plurality of lamp beads are arranged on the circuit board, and the arrangement of the plurality of lamp beads is consistent with the display characters, and the plurality of lamp beads are located directly below the concave position. The display module of this structure adopts a lamp bead arrangement to replace the LED digital tube, which can solve the above problems well.

[0004] However, the LED lamp beads of this display module generally use LED monochrome lamp beads, which emit light in a single color. If the same window needs to emit multiple colors, the window space needs to accommodate multiple lamp beads, which increases the cost and difficulty of production, occupies a large space and has the hidden danger of uneven light emission. At the same time, the light-emitting surface only emits light from the front, and cannot realize the function of emitting light from the curved side. Therefore, it is necessary to improve the current display module. Utility Model Content

[0005] In view of this, the present invention aims to improve the deficiencies in the prior art, and its main purpose is to provide a LED multi-color side-emitting display module, which can effectively solve the problems of the existing display modules having a single luminous color or uneven luminous color and being unable to emit light on the curved side.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A LED multi-color side-emitting display module comprises a cover body and a circuit board; the cover body has a mounting cavity with an opening facing downward, and a concave position corresponding to the display characters is concavely arranged on the top surface of the cover body; the circuit board is fixed in the mounting cavity, and a plurality of first lamp beads are arranged on the circuit board, and the arrangement of the plurality of first lamp beads is consistent with the display characters, and the plurality of first lamp beads are located directly below the concave position; an arc-shaped through groove is provided on the front side edge of the top surface of the cover body, and the arc-shaped through groove is connected to the mounting cavity, and an arc-shaped light guide bar is provided on the cover body, and the arc-shaped light guide bar covers the arc-shaped through groove, and the outer surface of the arc-shaped light guide bar is a curved surface; a plurality of second lamp beads are arranged on the circuit board, and the plurality of second lamp beads are arranged in an arc-shaped interval and are located directly below the arc-shaped through groove, and the plurality of second lamp beads and the plurality of first lamp beads are all LED multi-color lamp beads.

[0008] As a preferred solution, the outer contour of the cover body is a semicircular arc structure, and correspondingly, the circuit board is also a semicircular arc structure. The circuit board is fitted and fixed to the inner bottom surface of the installation cavity, and has a beautiful appearance and a compact structure.

[0009] As a preferred solution, the cover body includes a base layer and a surface layer, the base layer is made of non-light-transmitting plastic material, a through groove corresponding to the display characters is opened on the base layer, the through groove is connected to the installation cavity, and the aforementioned arc-shaped through groove is located on the base layer; the surface layer is made of light-transmitting plastic material, the surface layer is molded on the top surface of the base layer and covers the through groove, and the aforementioned recess is located directly above the through groove, with a simple structure, easy production and low cost.

[0010] As a preferred solution, two fixing columns extend from the inner bottom surface of the installation cavity, and the two fixing columns are symmetrically arranged on the left and right. Fixing holes are opened on the two fixing columns, and the fixing holes penetrate to the top surface of the cover body. Fixing screws are arranged in the fixing holes for fixing with the external installation.

[0011] As a preferred solution, two buckle ears extend downward from the bottom of the front side of the cover body, and the two buckle ears are symmetrically arranged on the left and right. Buckle holes are opened on the two buckle ears for buckling and fixing with the outside.

[0012] As a preferred solution, the circuit board is provided with an RGB driver chip, which performs various color adjustment controls on the plurality of first lamp beads and the plurality of second lamp beads, and has a compact structure.

[0013] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that:

[0014] By using LED colorful lamp beads for both the multiple second lamp beads and the multiple first lamp beads, the light color of the lamp beads can be changed, and there is no need to install more lamp beads, which effectively reduces the cost and difficulty of production, while also saving space and ensuring the uniformity of light emission. At the same time, an arc-shaped through groove is opened on the front side edge of the top surface of the cover, and an arc-shaped light guide strip and a second lamp bead are arranged in cooperation to realize front, side and curved surface light emission, enrich the display light emission effect, and increase the possibility of structural design.

[0015] In order to more clearly illustrate the structural features and functions of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of an assembly perspective view of a preferred embodiment of the utility model;

[0017] Figure 2 It is a three-dimensional schematic diagram of the assembly of the preferred embodiment of the utility model from another angle;

[0018] Figure 3 It is an exploded view of a preferred embodiment of the utility model;

[0019] Figure 4 It is an exploded view from another angle of the preferred embodiment of the utility model;

[0020] Figure 5 It is a cross-sectional view of a preferred embodiment of the utility model.

[0021] Description of the accompanying drawings:

[0022] 10. Cover 11. Base

[0023] 12. Surface layer 13. Fixed column

[0024] 14. Buckle ear 101, installation cavity

[0025] 102, concave position 103, arc-shaped through groove

[0026] 104, through slot 105, fixing hole

[0027] 106, button hole 107, arc positioning groove

[0028] 20. Circuit board 21. First lamp bead

[0029] 22. Second lamp bead 23. RGB driver chip

[0030] 30. Arc-shaped light guide strip 31. Arc-shaped positioning strip

[0031] 40. Fix the screws. DETAILED DESCRIPTION

[0032] Please refer to Figures 1 to 5 As shown, it shows the specific structure of a preferred embodiment of the utility model, including a cover body 10 and a circuit board 20.

[0033] The cover 10 has a mounting cavity 101 with an opening facing downward, a concave position 102 corresponding to the displayed characters is formed on the top surface of the cover 10, an arcuate through groove 103 is formed on the front side edge of the top surface of the cover 20, the arcuate through groove 103 is connected to the mounting cavity 101, and an arcuate light guide bar 30 is provided on the cover 10, and the arcuate light guide bar 30 covers the arcuate through groove 103. In this embodiment, the outer contour of the cover 10 is a semicircular arc structure, and the appearance is beautiful. Specifically, the cover body 10 includes a base layer 11 and a surface layer 12. The base layer 11 is made of non-translucent plastic material. A through groove 104 that matches the displayed characters is formed on the base layer 11. The through groove 104 is connected to the installation cavity 101. The aforementioned arc-shaped through groove 103 is located on the base layer 11. The surface layer 12 is made of translucent plastic material. The surface layer 12 is formed on the top surface of the base layer 11 and covers the through groove 104. The aforementioned concave position 102 is located directly above the through groove 104. The structure is simple, easy to manufacture, and low in cost. In addition, two fixing columns 13 extend from the inner bottom surface of the installation cavity 101. The two fixing columns 13 are symmetrically arranged. Both fixing columns 13 are provided with fixing holes 105. The fixing holes 105 penetrate to the top surface of the cover body 10, and fixing screws 40 are arranged in the fixing holes 105 so as to be fixed with the outside. In addition, two buckle ears 14 extend downward from the front bottom of the cover body 10, and the two buckle ears 14 are symmetrically arranged. Buckle holes 106 are provided on the two buckle ears 14 to be buckled and fixed with the outside. In addition, the front end surface of the arc-shaped through groove 103 is concavely provided with an arc-shaped positioning groove 107, and correspondingly, the front bottom surface of the arc-shaped light guide strip 30 is convexly provided with an arc-shaped positioning strip 31, and the arc-shaped positioning strip 31 is embedded in the arc-shaped positioning groove 107 and fixed, so that the arc-shaped light guide strip 30 is firmly installed on the cover body 10, and the outer surface of the arc-shaped light guide strip 30 is a curved surface.

[0034] The circuit board 20 is fixed in the installation cavity 101. A plurality of first lamp beads 21 are arranged on the circuit board 20. The arrangement of the plurality of first lamp beads 21 is consistent with the display characters. The plurality of first lamp beads 21 are located directly below the recess 102. A plurality of second lamp beads 22 are arranged on the circuit board 20 in an arc-shaped interval arrangement and are located directly below the arc-shaped through groove 103. The plurality of second lamp beads 22 and the plurality of first lamp beads 21 are all LED multi-color lamp beads so as to emit multi-color light. In this embodiment, the circuit board 20 is also in a semicircular arc structure. The circuit board 20 is fixed to the inner bottom surface of the installation cavity 101 and is firmly installed. In addition, the circuit board 20 has an RGB driver chip 23. The RGB driver chip 23 performs various color adjustment controls on the plurality of first lamp beads 21 and the plurality of second lamp beads 22, and has a compact structure.

[0035] The working principle of this embodiment is described in detail as follows:

[0036] When in use, this product is installed on an external device, and the circuit board 20 is electrically connected to the control system of the device. When the control system sends a signal to the circuit board 20, the RGB driver chip 23 controls the corresponding first lamp bead 21 and / or the corresponding second lamp bead 22 to light up. When the first lamp bead 21 is lit, the light generated by the first lamp bead 21 is sequentially emitted outward through the through groove 104 and the recess 102 to display the corresponding characters. When the second lamp bead 22 is lit, the light generated by the second lamp bead 22 is sequentially emitted outward through the arc-shaped through groove 103 and the arc-shaped light guide strip 30, which can display the luminous effect of the marquee and the luminous effect of the breathing lamp, making the display effect diversified.

[0037] The design focus of the utility model is: by using LED colorful lamp beads for multiple second lamp beads and multiple first lamp beads, the light color of the lamp beads can be changed, and there is no need to install more lamp beads, which effectively reduces the cost and difficulty of production, and also saves space and ensures the uniformity of light emission. At the same time, an arc-shaped through groove is opened on the side edge of the top surface of the cover body, and an arc-shaped light guide strip and a second lamp bead are arranged to realize front, side and curved surface light emission, enrich the display light emission effect, and increase the possibility of structural design.

[0038] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An LED multi-color side-lighting display module, comprising a cover and a circuit board; the cover has a mounting cavity with an opening facing downward, and a concave position corresponding to the display characters is concavely arranged on the top surface of the cover; the circuit board is fixed in the mounting cavity, and a plurality of first lamp beads are arranged on the circuit board, and the arrangement of the plurality of first lamp beads is consistent with the display characters, and the plurality of first lamp beads are located directly below the concave position; characterized in that: An arc-shaped through groove is provided on the front side edge of the top face of the cover body, and the arc-shaped through groove is connected to the installation cavity, and an arc-shaped light guide strip is provided on the cover body, and the arc-shaped light guide strip covers the arc-shaped through groove, and the outer surface of the arc-shaped light guide strip is a curved surface; a plurality of second lamp beads are provided on the circuit board, and the plurality of second lamp beads are arranged in an arc-shaped interval and are located directly below the arc-shaped through groove, and the plurality of second lamp beads and the plurality of first lamp beads are all LED multi-color lamp beads.

2. The LED multi-color side-emitting display module according to claim 1, characterized in that: The outer contour of the cover body is a semicircular arc structure, and correspondingly, the circuit board is also a semicircular arc structure, and the circuit board is fitted and fixed to the inner bottom surface of the installation cavity.

3. The LED multi-color side-emitting display module according to claim 1, characterized in that: The cover body includes a base layer and a surface layer. The base layer is made of non-light-transmitting plastic material. A through groove corresponding to the displayed characters is opened on the base layer. The through groove is connected to the installation cavity. The aforementioned arc-shaped through groove is located on the base layer; the surface layer is made of light-transmitting plastic material. The surface layer is molded on the top surface of the base layer and covers the through groove. The aforementioned concave position is located directly above the through groove.

4. The LED multi-color side-emitting display module according to claim 1, characterized in that: Two fixing columns extend from the inner bottom surface of the installation cavity. The two fixing columns are symmetrically arranged. Fixing holes are opened on the two fixing columns. The fixing holes penetrate to the top surface of the cover body, and fixing screws are arranged in the fixing holes.

5. The LED multi-color side-emitting display module according to claim 1, characterized in that: Two buckle ears are extended downward from the bottom of the front side of the cover body. The two buckle ears are symmetrically arranged on the left and right, and buckle holes are opened on the two buckle ears.

6. The LED multi-color side-emitting display module according to claim 1, characterized in that: The circuit board is provided with an RGB driving chip, and the RGB driving chip performs various color adjustment controls on the plurality of first lamp beads and the plurality of second lamp beads.

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