Display module and elevator display screen

Abstract

The utility model discloses a display module and an elevator display screen, and relates to the technical field of nixie tubes. The shell is connected with the shell, and a driving circuit is arranged on the circuit board; a plurality of LED lamp beads are arranged, and the LED lamp beads are electrically connected with the driving circuit; wherein the LED lamp beads are rhombic, and the LED lamp beads are arranged on the circuit board in a staggered mode. According to the elevator display screen, the LED lamp beads are adjusted to be rhombic in staggered arrangement, so that the cost and the power consumption of the elevator display screen are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to LED nixie tube technical field, specifically a display module and elevator display screen. BACKGROUND

[0002] The elevator display screen is the equipment for displaying the current floor and running direction of the elevator in the elevator system, and is usually installed in the elevator car or the waiting hall outside the elevator.

[0003] The main types of the elevator display screen include LED nixie tube display, segment type liquid crystal display, dot matrix type liquid crystal display and color liquid crystal display, wherein, the LED nixie tube display is widely used in the field of elevator display screen due to its low cost, low power consumption, long service life and easy maintenance.

[0004] The Chinese patent with publication number CN205590106U discloses an elevator floor dot matrix display screen, which comprises a main circuit board, a first dot matrix, a second dot matrix, a main control chip, a driving circuit and a direction selection circuit; the main control chip makes the driving circuit drive the first dot matrix and the second dot matrix to display the state of the elevator car and the floor in horizontal or vertical direction according to the different states of the direction selection circuit, realizing the horizontal and vertical compatibility of the display interface.

[0005] However, the current part of the elevator display screen often adopts a plurality of arrayed LED lamp beads, and the cost is still relatively high, so it is urgent to develop a display module and elevator display screen to solve the problems in the prior art. UTILITY MODEL CONTENT

[0006] The utility model aims at providing a display module and elevator display screen, which adjusts the LED lamp beads into staggered rhombuses, so as to solve the problem of high cost of the elevator display screen in the above background technology.

[0007] To achieve the above purpose, the utility model provides the following technical scheme:

[0008] A display module comprises:

[0009] A shell;

[0010] A circuit board connected with the shell, wherein a driving circuit is arranged on the circuit board;

[0011] LED lamp beads, wherein a plurality of LED lamp beads are arranged, and the LED lamp beads are electrically connected with the driving circuit;

[0012] The shape of the LED lamp bead is a rhombus, and the plurality of LED lamp beads are staggered on the circuit board.

[0013] Further, the shape of the LED lamp bead is a rhombus with a right angle.

[0014] Further, distances between adjacent LED lamp beads are same.

[0015] Further, the LED lamp bead has a side length of 2mm, and the distance between adjacent LED lamp beads is 0.7mm.

[0016] Further, a fluorescent glue layer is encapsulated between the shell and the circuit board.

[0017] Further, the LED lamp bead is also provided with the fluorescent glue layer.

[0018] Further, the LED lamp bead and the fluorescent glue layer covering the LED lamp bead form a light-emitting unit, and the light-emitting unit emits white light after being lighted up.

[0019] Further, the LED lamp bead is a blue LED wafer, and the fluorescent glue layer is a yellow fluorescent glue layer.

[0020] Further, the light-emitting wavelength of the LED wafer is 464nm-466nm.

[0021] An elevator display screen comprises a display module.

[0022] Compared with the prior art, the display module has the advantages that:

[0023] (1) Compared with the square LED lamp bead arranged in an equal-interval non-inclined array, the display module changes the shape of the LED lamp bead into a rhombus, and arranges the LED lamp beads on the circuit board in a staggered manner, so that the display module has less LED lamp beads arranged in the same size under the condition of not affecting the display effect, thereby reducing the preparation cost and working energy consumption of the display module, and reducing the cost of the elevator display screen.

[0024] (2) The display module emits white light by changing the original epoxy resin used for encapsulation into a fluorescent glue layer, and the human eye is more sensitive to white light and the illuminance of white light is higher than that of red light or blue light.

[0025] Other features and advantages of the display module will be disclosed in detail in the following specific embodiments and drawings. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a front structure schematic view of the utility model;

[0027] Figure 2 is a back structure schematic view of the shell of the utility model;

[0028] Figure 3 is a side structure schematic view of the shell of the utility model;

[0029] Figure 4 is the structural schematic diagram of the circuit board of the utility model;

[0030] Figure 5 is the arrangement schematic diagram of the LED lamp bead of the utility model.

[0031] Mark explanation in the drawing: 1, shell; 11, hollow hole; 2, circuit board; 21, drive circuit; 22, light emitting unit; 23, LED lamp bead. DETAILED DESCRIPTION

[0032] In the utility model, unless another explicit provision and limitation, the terms "installation", "connection", "fixed", and other terms should be understood broadly, for example, can be fixed connection, can be detachable connection, or integrated;Can be mechanical connection, can be electrical connection;Can be directly connected, can be indirectly connected through intermediate medium, can be the communication or interaction of two elements inside two elements.The above-mentioned terms in the utility model can be understood according to the specific meaning of the specific circumstances for ordinary skilled in the art.

[0033] A display module, as shown in Figures 1-4 , comprising:

[0034] Shell 1;

[0035] Circuit board 2, the shell 1 is connected with the shell 1, and the drive circuit 21 is arranged on the circuit board 2;

[0036] LED lamp bead 23, the LED lamp bead 23 is provided with several, and the LED lamp bead 23 is electrically connected with the drive circuit 21;

[0037] Wherein, the shape of the LED lamp bead 23 is rhombus, and the several LED lamp beads 23 are staggered on the circuit board 2.

[0038] Specifically, as shown in Figure 1 , the staggered arrangement refers to that a part of the rhombic LED lamp bead 23 of the second row is arranged between two rhombic LED lamp beads 23 of the first row, and another part is arranged between two rhombic LED lamp beads 23 of the third row.

[0039] The shape of the LED lamp bead 23 is rhombus with right angle. Specifically, it is a square rotated by 45 degrees. The application uses the rhombic LED lamp bead 23 with right angle, which can directly use the existing square LED lamp bead 23, is convenient for production and manufacture, and the display effect of the rhombic LED lamp bead 23 with right angle is better.

[0040] As Figure 2 shown in the embodiment, the shell 1 is provided with a hollow hole 11, and the hollow hole 11 is matched with the LED lamp bead 23 on the circuit board 2.

[0041] In the embodiment, the shell 1 is also provided with a pin, and the pin is electrically connected with the driving circuit 21 on the circuit board 2.

[0042] As Figure 5 shown in the embodiment, the distance a between the adjacent LED lamp beads 23 is the same.

[0043] In order to optimize the display effect of the display module and make the display content more eye-catching and intuitive, in the embodiment, a fluorescent glue layer is packaged between the shell 1 and the circuit board 2, and the LED lamp bead 23 is also provided with a fluorescent glue layer.

[0044] The application changes the original epoxy resin used for packaging into a fluorescent glue layer, so that the light emitted by the display module finally becomes white without increasing additional manufacturing processes, and the light illumination is improved.

[0045] In the embodiment, the LED lamp bead 23 is a blue LED wafer, and the fluorescent glue layer is a yellow fluorescent glue layer.

[0046] An elevator display screen comprises the display module.

[0047] The display module and the elevator display screen are simple in structure, convenient to use and high in reliability.

[0048] Although the present specification is described in terms of embodiments, not every embodiment exhibits every characteristic or implements every combination of features described in the present specification. In addition, not every embodiment includes every embodiment described in the present specification. The description herein of any embodiment, including any preferred embodiment, is thus intended to be illustrative, and not restrictive. The scope of the present application is thus intended to be broad, and will be set forth in the following claims.

Claims

1. A display module, characterized in that, include: shell; A circuit board is connected to the housing, and a drive circuit is provided on the circuit board; LED lamp beads, wherein a plurality of LED lamp beads are provided, and the LED lamp beads are electrically connected to the driving circuit; The LED beads are rhomboid in shape, and several LED beads are arranged alternately on the circuit board; A fluorescent adhesive layer is encapsulated between the outer casing and the circuit board.

2. The display module according to claim 1, characterized in that, The LED beads are in the shape of a rhombus with right angles.

3. The display module according to claim 2, characterized in that, The distance between adjacent LED beads is the same.

4. The display module according to claim 3, characterized in that, The LED bead has a side length of 2mm and a distance of 0.7mm between adjacent LED beads.

5. The display module according to claim 1, characterized in that, The LED beads are also provided with a fluorescent adhesive layer.

6. The display module according to claim 5, characterized in that, The LED beads and the fluorescent adhesive layer covering the LED beads form a light-emitting unit, and the light emitted by the light-emitting unit after being lit is white light.

7. The display module according to claim 6, characterized in that, The LED beads are blue LED chips, and the fluorescent adhesive layer is a yellow fluorescent adhesive layer.

8. The display module according to claim 7, characterized in that, The LED chip emits light at a wavelength of 464nm to 466nm.

9. An elevator display screen, characterized in that, Includes the display module according to any one of claims 1-8.

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