Method and system for detecting light-emitting diode (LED)

Abstract

This invention relates to a method and system for detecting light-emitting diodes (LEDs). The main method involves a processor module of the LED detection system applying either a forward bias or a reverse bias to each LED in the LED emission and detection module via a drive control module. When the first LED in the LED emission and detection module is detected with a reverse bias, the other LEDs surrounding the first LED are sequentially applied a forward bias to emit light, allowing the first LED to sequentially detect the brightness values ​​of the other LEDs around it. This process is repeated for the next LED. After all the LEDs around the edges of the N LEDs have been tested, and the detected brightness values ​​have been converted into electrical signals and output to the signal collection module for reception, the processor module can be notified that an LED malfunction or damage has occurred. In this way, the LED panel can perform self-testing, so that when an LED malfunctions or damages, the fault or damage can be detected through self-testing, thereby reducing the waste of manpower, making it easier and more convenient to operate, and increasing its practicality in overall implementation and use.

Description

Technical Field

[0001] This invention relates to a method and system for detecting light-emitting diodes (LEDs), and more particularly to a method that can perform self-detection on LED panels. When an LED panel has a fault or damage, the method can detect the fault or damage through self-detection, thereby reducing the waste of human resources. The method is simpler and more convenient to operate and use, and its overall implementation and use are more practical. Prior Technology

[0002] Note that light-emitting diodes (LEDs) require very little electrical energy to emit light, resulting in relatively low power consumption and significantly reducing electricity usage. Given the current global trend towards energy conservation and carbon reduction, LEDs are an energy-saving and environmentally friendly green lighting source with advantages such as high brightness, long lifespan, small size, light weight, fast response, and environmental friendliness. With less pollution, simpler control circuits, and continuously improving luminous efficiency, LEDs are a foreseeable trend to replace traditional lighting. They are widely accepted and used in various sectors, including the display industry, lighting equipment, and automotive industry. Therefore, the industry is constantly dedicated to the research and improvement of LEDs to reduce energy waste and consequently save consumers on electricity bills.

[0003] As for light-emitting diode (LED) panels, they have been widely used in many fields due to their advantages such as high efficiency, wide color gamut, good reliability and long lifespan, such as advertising billboards, backlights and future micro LED displays.

[0004] However, while the aforementioned LED panels can achieve the expected effect of luminous display, it has been found in actual operation and use that these LED panels cannot perform self-detection. This means that when there is damage to LEDs on these LED panels, it can only be detected by visual inspection, and cannot be detected by automatic detection. This results in a significant waste of human resources in the fault detection process, making it extremely inconvenient and indicating that there is still room for improvement in its overall circuit design.

[0005] In view of this, the inventor, drawing on years of rich design, development and practical manufacturing experience in the relevant industry, has further researched and improved upon the existing shortcomings to provide a light-emitting diode detection method and system, aiming to achieve better practical value. Summary of the Invention

[0006] The main objective of this invention is to provide a method and system for detecting light-emitting diodes (LEDs). The main function of this invention is to perform self-detection on LED panels, so that when there is a fault or damage to the LED panel, the fault or damage can be detected through self-detection, thereby reducing the waste of human resources. This invention is simpler and more convenient to operate and use, and its overall implementation and use are more practical.

[0007] The main objective and effectiveness of the light-emitting diode detection method of this invention are achieved through the following specific technical means:

[0008] Its main function is to have the processor module of the light emission detection system apply forward or reverse bias voltages to each light-emitting diode (LED) in the light emission and detection module through the drive control module. When the first LED in the light emission and detection module is detected by applying a reverse bias voltage, the other LEDs around the first LED are sequentially applied forward bias voltages to emit light, so that the first LED can sequentially detect the brightness values ​​of the other LEDs around it. After the first LED has finished detecting the LEDs around it, it then applies a forward bias voltage to the second LED. Detection is performed using a reverse bias voltage. Then, a forward bias voltage is applied to each of the other LEDs around the second LED to emit light. This allows the second LED to detect the brightness values ​​of the other LEDs around it. This process is repeated for the Nth LED, and the detected brightness values ​​are converted into electrical signals and output to the signal collection module for reception. The signal collection module then transmits the received electrical signals to the processor module, which then detects that an LED malfunction has occurred.

[0009] In a preferred embodiment of the light-emitting diode detection method of the present invention, when the processor module receives a notification that each of the light-emitting diodes in the light-emitting and detection modules is faulty or damaged, it can issue a warning signal through the warning module connected to the processor module to notify relevant personnel to handle the situation.

[0010] The main objective and effectiveness of the light-emitting diode detection system of this invention are achieved through the following specific technical means:

[0011] Its main components include a light emission detection system; among which:

[0012] The light emission detection system includes a light emission and detection module, which is composed of a matrix of light-emitting diodes. Each light-emitting diode in the light emission and detection module emits light when a forward bias voltage is applied, and receives light signals and converts them into electrical signals when a reverse bias voltage is applied. A processor module is provided corresponding to the light emission and detection module, and a drive control module is connected between the processor module and the light emission and detection module so that the processor module can use the drive control module to drive and control the application of forward or reverse bias voltages to each light-emitting diode in the light emission and detection module. A signal collection module is also connected between the processor module and the light emission and detection module so that the signal collection module can receive the electrical signals output by each light-emitting diode in the light emission and detection module, and transmit the received electrical signals to the processor module.

[0013] In a preferred embodiment of the light-emitting diode detection system of the present invention, the processor module is connected to an alarm module. Simple Explanation of the Diagram

[0014] Figure 1: Schematic diagram of the circuit architecture of this invention Figure 2: Schematic diagram of the arrangement architecture of the light emission and detection modules of this invention Figure 3: Schematic diagram of the detection process of this invention Implementation

[0015] To provide a more complete and clear disclosure of the technical content, purpose, and effects achieved by this invention, a detailed description is provided below, along with reference to the accompanying drawings and figures:

[0016] First, please refer to the circuit architecture diagram of the present invention shown in Figure 1. The present invention mainly includes a light emission detection system (1); wherein:

[0017] The light emission detection system (1) includes a light emission and detection module (11), which is composed of a matrix of light-emitting diodes arranged in a matrix [please also refer to the schematic diagram of the light emission and detection module arrangement architecture of the present invention in Figure 2]. When a forward bias voltage is applied to each of the light-emitting diodes in the light emission and detection module (11), it emits light. When a reverse bias voltage is applied to each of the light-emitting diodes, it receives light signals and converts them into electrical signals for output. A processor module (12) is provided for the light emission and detection module (11), and a drive control module (13) is connected between the processor module (12) and the light emission and detection module (11) so that the processor module (12) can use the drive control module (13) to drive and control the light emission and detection module (11). Each of the light-emitting diodes in the light-emitting and detection module (11) is subjected to a forward bias or a reverse bias. A signal collection module (14) is connected between the processor module (12) and the light-emitting and detection module (11) to receive the electrical signals output by each of the light-emitting diodes in the light-emitting and detection module (11). At the same time, the signal collection module (14) transmits the received electrical signals to the processor module (12). The processor module (12) is connected to an alarm module (15) so that when the processor module (12) receives a fault or damage to each of the light-emitting diodes in the light-emitting and detection module (11), it can issue an alarm signal through the alarm module (15) to notify relevant personnel to handle the situation.

[0018] Therefore, please refer to the third figure for the schematic diagram of the detection process of the present invention. In operation, the processor module (12) of the light emission detection system (1) applies a forward bias or a reverse bias to each of the light-emitting diodes of the light emission and detection module (11) through the drive control module (13). When the first light-emitting diode numbered 1 in the light emission and detection module (11) is detected by applying a reverse bias, the second light-emitting diode numbered 2 on the side of the first light-emitting diode numbered 1 is subjected to a forward bias to emit light. The first LED can detect the brightness value of the second LED. When a reverse bias voltage is applied to the first LED for detection, a forward bias voltage is also applied to the fourth LED (numbered 4) on the other side of the first LED to emit light, allowing the first LED to detect the brightness value of the fourth LED. Similarly, when a reverse bias voltage is applied to the second LED for detection, a forward bias voltage is applied to the first LED on the side of the second LED to emit light, allowing the second LED to detect the brightness value of the first LED. The brightness value of the light-emitting diode (LED) is measured, and when a reverse bias voltage is applied to LED #2 for detection, a forward bias voltage is also applied to the third LED (numbered #3) on the other side of LED #2 to produce light, allowing LED #2 to detect the brightness value of LED #3. Furthermore, when a reverse bias voltage is applied to LED #2 for detection, a forward bias voltage is also applied to the fifth LED (numbered #5) on the other side of LED #2 to produce light, allowing LED #2 to detect the brightness value of LED #5. The brightness values ​​are sequentially measured for each of the Nth LEDs around the Nth LED. The measured brightness values ​​are converted into electrical signals and output to the signal collection module (14) for reception. The signal collection module (14) then transmits the received electrical signals to the processor module (12). When the processor module (12) receives a fault or damage to any of the LEDs in the light emission and detection module (11), it can issue a warning signal through the warning module (15) to notify relevant personnel to handle the situation.

[0019] Based on the above description of the structure and usage of the present invention, it can be seen that, compared with the existing structure, the present invention is mainly able to perform self-detection of the light-emitting diode panel. When the light-emitting diode panel has a fault or damage, it can detect the fault or damage through self-detection, thereby reducing the waste of human resources. It is also simpler and more convenient to operate and use, and its overall implementation and use are more practical.

[0020] However, the foregoing embodiments or figures are not intended to limit the product structure or usage of the present invention. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of the present invention.

[0021] In conclusion, the embodiments of the present invention can indeed achieve the expected effects, and the specific structure disclosed therein has not only never been seen in similar products, but has also not been disclosed before the application. It fully complies with the provisions and requirements of the Patent Law. Therefore, we hereby file an application for an invention patent and respectfully request your review and grant of a patent, which would be of great benefit.

[0022] 1: Luminescence Detection System 11: Light emission and detection module 12: Processor Module 13: Drive control module 14: Signal Collection Module 15: Warning Module

Claims

1. A method for detecting light-emitting diodes (LEDs), which mainly involves the processor module of a light-emitting detection system applying a forward bias or a reverse bias to each LED in the light-emitting and detection module through a drive control module. When the first LED in the light-emitting and detection module is detected by applying a reverse bias, the other LEDs around the side of the first LED are sequentially applied a forward bias to emit light, so that the first LED can sequentially detect the brightness values ​​of the other LEDs around its side. After the first LED has finished detecting the LEDs around its side, the method then detects the brightness values ​​of the second LED. A reverse bias voltage is applied to the light-emitting diode (LED) for detection. Then, a forward bias voltage is applied to each of the other LEDs around the second LED to emit light. This allows the second LED to detect the brightness values ​​of the other LEDs around it. This process is repeated for the Nth LED, and the detected brightness values ​​are converted into electrical signals and output to the signal collection module for reception. The signal collection module then transmits the received electrical signals to the processor module, which then notifies the processor module that a fault or damage has occurred in the LED.

2. The light-emitting diode detection method as described in claim 1, wherein, When the processor module receives a notification that any of the light-emitting diodes in the light-emitting and detection module are faulty or damaged, it can issue a warning signal through the warning module connected to the processor module to notify relevant personnel to handle the situation.

3. A light-emitting diode (LED) detection system, which mainly includes a light-emitting detection system; wherein: The light emission detection system includes a light emission and detection module, which is composed of a matrix of light-emitting diodes. Each light-emitting diode in the light emission and detection module emits light when a forward bias voltage is applied, and receives light signals and converts them into electrical signals when a reverse bias voltage is applied. A processor module is provided corresponding to the light emission and detection module, and a drive control module is connected between the processor module and the light emission and detection module so that the processor module can use the drive control module to drive and control the application of forward or reverse bias voltages to each light-emitting diode in the light emission and detection module. A signal collection module is also connected between the processor module and the light emission and detection module so that the signal collection module can receive the electrical signals output by each light-emitting diode in the light emission and detection module, and transmit the received electrical signals to the processor module.

4. The light-emitting diode detection system as described in claim 3, wherein, The processor module is connected to an alert module.

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