Handwritten LED emergency light board

Abstract

The utility model discloses a handwriting type LED emergency light board, including bottom plate, handwriting double -color display screen, the lower end of bottom plate is connected with a plurality of handle, is equipped with the battery compartment on the bottom plate, and the battery compartment is installed with battery, handwriting double -color display screen includes panel, handwriting pen, and the panel is installed on the bottom plate, and the positive pole of battery provides positive voltage for handwriting double -color display screen, and the negative pole of battery provides negative voltage for handwriting double -color display screen. The utility model discloses handwriting type LED emergency light board adopts double -color display design, and red and green double -color writing is realized through handwriting pen gear switching, and visual level is more rich, satisfies the diversified emergency demand, and the design of double -sided panel expands the use scene, and improves practicality, and lightweight aluminum bottom plate and frame reduce weight, and the handle is convenient for handheld with collocation, handwriting pen integrates the function of erasing and writing, and the immediate zero modification is convenient, and the reserved thread hole can be flexibly converted into advertising board, realizes one board multi -use, and has the value of emergency and display.

Description

Technical Field

[0001] This utility model belongs to the field of light sign technology, specifically relating to handwritten LED support light signs. Background Technology

[0002] The applicant disclosed a handwriting dual-color display screen in utility model patent application number CN201621355910.2, providing a simple structure, convenient writing and wiping, low cost, and wide application range of light-emitting diode dot matrix dual-color display screen. The applicant discovered that this dual-color display screen has application prospects in support light boards. Therefore, this application aims to create a support light board that combines dual-color display, flexible handwriting, lightweight portability, and double-sided use to enhance the support experience and interactive effect. Utility Model Content

[0003] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a handwritten LED support light board, including a base plate and a handwritten dual-color display screen. Several handles are connected to the lower end of the base plate. A battery compartment is provided on the base plate, and batteries are installed in the battery compartment. The handwritten dual-color display screen includes a panel and a stylus. The panel is mounted on the base plate. Several display points and several trigger points are evenly spaced on the panel. The trigger points correspond to and are close to the corresponding display points. Each display point includes one LED and one LED. The positive terminal of LED one is connected to a circuit with a resistor to supply a positive voltage. The negative terminal of LED one is connected to the drain of an N-channel MOSFET. The source of the N-channel MOSFET is connected to ground, and the gate of the N-channel MOSFET forms a red light trigger point. The negative terminal of the second LED is connected to the circuit with a negative voltage through a resistor. The positive terminal of the second LED is connected to the drain of the P-channel MOSFET. The source of the P-channel MOSFET is connected to ground, and the gate of the P-channel MOSFET forms a green light trigger point. One red light trigger point and one green light trigger point constitute a trigger point. The stylus includes a conductive pen tip and a multi-position rotary switch. The positions of the multi-position rotary switch are respectively connected to the positive voltage of the circuit power supply, the negative voltage of the circuit power supply, and ground. The positive terminal of the battery provides a positive voltage to the handwriting dual-color display screen, and the negative terminal of the battery provides a negative voltage to the handwriting dual-color display screen.

[0004] As a preferred embodiment of the above technical solution, a panel is installed on both the front and back of the base plate, the circuit is located on the back of the panel, the trigger point and the display point are located on the front of the panel, and a circuit chamber is formed between the base plate and the panel.

[0005] As a preferred embodiment of the above technical solution, the base plate is fixedly connected to a frame around its perimeter, and the panel is connected to the frame around its perimeter by a number of screws. The base plate is provided with a number of heat dissipation holes.

[0006] As a preferred embodiment of the above technical solution, both the base plate and the frame are made of lightweight aluminum.

[0007] As a preferred embodiment of the above technical solution, the two sides of the frame are provided with a plurality of threaded holes.

[0008] As a preferred embodiment of the above technical solution, the multi-position rotary switch has positions including E, W, RL, and GL. Position E is disconnected to form an open circuit, position W is connected to ground, position RL is connected to the positive voltage of the circuit power supply, and position GL is connected to the negative voltage of the circuit power supply. Resistors are provided between the multi-position rotary switch and the positive and negative voltages of the circuit power supply.

[0009] The beneficial effects of this utility model are as follows: The handwritten LED support light board of this utility model adopts a dual-color display design, and can achieve red and green writing by switching the pen settings, which makes the visual layers richer and meets the diverse support needs; the double-sided panel design expands the usage scenarios and improves practicality; the lightweight aluminum base plate and frame reduce weight, and the handle makes it easy to hold; the pen integrates erasing and writing functions, which allows for convenient clearing and modification; the reserved threaded hole can be flexibly converted into an advertising board, realizing multiple uses for one board and combining support and display value. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] Figure 2 This is a schematic diagram of the cross-sectional structure of this utility model. Detailed Implementation

[0012] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0013] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0014] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0015] like Figure 1-2 As shown, the handwritten LED support light board includes a base plate 1 and a handwritten dual-color display screen. Several handles 2 are connected to the lower end of the base plate 1. A battery compartment 3 is located on the base plate 1, containing batteries. The handwritten dual-color display screen includes a panel 4 and a stylus 5. The panel 4 is mounted on the base plate 1 and has several evenly spaced display points and several evenly spaced trigger points. The trigger points correspond to and are close to the corresponding display points. Each display point includes one LED and one LED. The positive terminal of LED 1 is connected to a circuit via a resistor to supply a positive voltage, and the negative terminal of LED 1 is connected to the drain of an N-channel MOSFET. The source of the LED is connected to ground. The gate of the N-channel MOSFET forms a red light trigger point. The negative terminal of the second LED is connected to the circuit with a negative power supply through a resistor. The positive terminal of the second LED is connected to the drain of the P-channel MOSFET. The source of the P-channel MOSFET is connected to ground. The gate of the P-channel MOSFET forms a green light trigger point. One red light trigger point and one green light trigger point constitute a trigger point. The stylus 5 includes a conductive pen tip and a multi-position rotary switch. The positions of the multi-position rotary switch are respectively connected to the positive power supply voltage, the negative power supply voltage, and ground. The positive terminal of the battery provides a positive voltage to the handwriting dual-color display screen, and the negative terminal of the battery provides a negative voltage to the handwriting dual-color display screen. The handwriting dual-color display screen adopts the display screen with application number CN201621355910.2. By sliding the stylus 5 on the panel 4 and touching the trigger point, the corresponding display point is lit up to form the corresponding pattern. Holding the handle 2 allows for cheering at concerts and other venues.

[0016] Furthermore, a panel 4 is mounted on both the front and back of the base plate 1. The circuit is located on the back of the panel 4, while the trigger point and display point are located on the front of the panel 4. A circuit chamber 6 is formed between the base plate 1 and the panel 4. The support light sign can be used on both sides for writing and display.

[0017] Furthermore, a frame 8 is fixedly connected to the four sides of the base plate 1, and the four sides of the panel 4 are connected to the frame 8 by several screws. The base plate 1 is provided with several heat dissipation holes. The frame 8 protects the panel 4.

[0018] Furthermore, both the base plate 1 and the frame 8 are made of lightweight aluminum. Lightweight aluminum reduces the overall weight of the light board while providing good heat dissipation.

[0019] Furthermore, the frame 8 has several threaded holes 7 on both sides. The several threaded holes 7 on both sides of the frame 8 are reserved for connecting bolts, etc., so that the support light signs can be installed on walls or shelves, etc., to form an advertising board.

[0020] Furthermore, the multi-position rotary switch includes four positions: E, W, RL, and GL. Position E is open-circuited, W is connected to ground, RL is connected to the positive voltage of the circuit power supply, and GL is connected to the negative voltage of the circuit power supply. Resistors are provided between the multi-position rotary switch and both the positive and negative voltages of the circuit power supply. When the multi-position rotary switch on the stylus is turned to the RL position, the conductive pen tip carries a positive voltage. When writing on the handwriting screen, the positively voltaged conductive pen tip contacts the trigger point on the handwriting screen, causing the enhancement-mode N-channel MOSFET in the contacted trigger point to conduct. The corresponding LED then illuminates, forming a corresponding red writing trace on the display screen. When the multi-position rotary switch on the stylus is turned to the GL position, the conductive pen tip carries a negative voltage. When writing on the handwriting screen, the negatively voltaged conductive pen tip contacts the trigger point on the handwriting screen, causing the enhancement-mode N-channel MOSFET in the contacted trigger point to conduct. When the enhanced P-channel MOSFET is turned on, the corresponding LED 2 lights up, forming a green writing trail on the display screen. When the multi-position rotary switch on the stylus is turned to the W position, the conductive pen tip is grounded. At this time, wiping the stylus tip on the screen causes the enhanced P-channel MOSFET and its gate in the contacted trigger point to be grounded, and the corresponding LED 1 or LED 2 is de-energized and no longer lights up, thus erasing the writing trail on the display screen. When the stylus is no longer in use, turning the multi-position rotary switch on the stylus to the E position de-energizes the conductive pen tip.

[0021] It is worth mentioning that the technical features such as the handwriting dual-color display screen involved in this utility model patent application should be regarded as prior art. The specific structure, working principle and possible control methods and spatial arrangement of these technical features can be adopted by conventional choices in the field and should not be regarded as the inventive point of this utility model patent. This utility model patent will not elaborate further.

[0022] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make many modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning or limited experimentation on the basis of the prior art should be within the scope of protection defined by the claims.

Claims

1. A handwritten LED cheering light board, characterized in that, The system includes a base plate and a dual-color handwriting display screen. Several handles are connected to the lower end of the base plate, which also houses a battery compartment containing batteries. The dual-color handwriting display screen includes a panel and a stylus. The panel is mounted on the base plate and has several evenly spaced display dots and several evenly spaced trigger dots. Each trigger dot corresponds to and is close to a display dot. Each display dot includes one LED and one LED. The positive terminal of LED one is connected to a circuit via a resistor to supply a positive voltage. The negative terminal of LED one is connected to the drain of an N-channel MOSFET. The source of the N-channel MOSFET is connected to ground. The gate of the P-channel MOSFET forms a red light trigger point. The negative terminal of the second LED is connected to the circuit via a resistor to supply a negative voltage. The positive terminal of the second LED is connected to the drain of the P-channel MOSFET. The source of the P-channel MOSFET is connected to the ground wire. The gate of the P-channel MOSFET forms a green light trigger point. One red light trigger point and one green light trigger point constitute a trigger point. The stylus includes a conductive pen tip and a multi-position rotary switch. The positions of the multi-position rotary switch are respectively connected to the positive voltage of the circuit supply, the negative voltage of the circuit supply, and the ground wire. The positive terminal of the battery provides a positive voltage to the handwriting dual-color display screen, and the negative terminal of the battery provides a negative voltage to the handwriting dual-color display screen.

2. The handwritten LED cheering light board as described in claim 1, characterized in that, The base plate has a panel installed on both the front and back sides. The circuit is located on the back of the panel, and the trigger point and display point are located on the front of the panel. A circuit chamber is formed between the base plate and the panel.

3. The handwritten LED cheering light board as described in claim 2, characterized in that, The base plate is fixedly connected to the frame around its perimeter, and the panel is connected to the frame around its perimeter by a number of screws. The base plate is provided with a number of heat dissipation holes.

4. The handwritten LED cheering light board as described in claim 3, characterized in that, The base plate and frame are both made of lightweight aluminum.

5. The handwritten LED cheering light board as described in claim 4, characterized in that, Several threaded holes are provided on both sides of the frame.

6. The handwritten LED cheering light board as described in claim 1, characterized in that, The multi-position rotary switch has four positions: E, W, RL, and GL. Position E is open circuit, W is connected to ground, RL is connected to the positive voltage of the circuit power supply, and GL is connected to the negative voltage of the circuit power supply. Resistors are provided between the multi-position rotary switch and the positive and negative voltages of the circuit power supply.

Images