Method of applying an imd combined lec cold light source

By optimizing the cold light sheet material and circuit design, the problems of unstable driving circuit and high power consumption of LEC cold light source were solved, realizing the application of ultra-thin, uniform light and shock resistant cold light source, with the characteristics of low power consumption and long life.

CN122120995APending Publication Date: 2026-05-29GUANGDONG JIAMU PHOTOELECTRIC TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGDONG JIAMU PHOTOELECTRIC TECH CO LTD
Filing Date
2024-11-28
Publication Date
2026-05-29

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Abstract

The application discloses a kind of LEC cold light source application methods combined with IMD, it is related to cold light source application technical field, including the following contents, S1, cold light sheet production: polyester acrylic resin, modified polyurethane, hydroxyethyl acrylate, photosensitizer, auxiliary agent, filler, solvent slurry, dispersing agent and curing agent;S2, dielectric layer preparation;S3, circuit application;S4, correction is carried out: correction circuit carries out power factor correction to filtered mains signal, the pin of correction circuit is MOS tube drive pin, controls MOS tube switch and changes output voltage.The application compared with initial EL cold light sheet, with ultrathin, working state is not heated, light is uniform, good shock resistance, still can emit light after cutting, color is rich and recognition degree is high, easy to use, low power consumption, easy to manufacture, so that it has ultralight, ultrathin, light soft, no ultraviolet, color is various, long life, no heat, strong light and shade color adjusting ability.
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Description

Technical Field

[0001] This invention relates to the field of cold light source application technology, and more specifically to a method for applying an LEC cold light source in conjunction with an IMD. Background Technology

[0002] The first generation of electroluminescent sheets was the EL (electroluminescence) sheet. EL (electroluminescence) is a physical phenomenon where an electric field generated by an AC voltage applied to two electrodes excites fluorescent materials to emit light. It combines various materials to produce light sources of different colors. It features low power consumption, soft light, no ultraviolet radiation, diverse colors, long lifespan, and no heat generation, hence the common name "cold light source." Unlike traditional point or line light emission mechanisms, cold light sources are uniform, surface-emitting devices that do not cause glare or harm to the eyes, and are flexible enough to be cut into any complex shape. With technological advancements, the new LEC (electroluminescent film) sheet emerged. The LEC sheet's encapsulation structure typically includes two layers of adhesive film, and between these layers are a back electrode layer, a dielectric layer, a light-emitting layer, and a phosphor layer. Different layer structures are added depending on the desired function or effect. The main difference between LEC and EL lies in the substrate used. Given the technical limitations, there is a need for a method that is simple in structure, easy to use, has low power consumption, and long service life. Therefore, this invention provides a method for applying an LEC cold light source combined with an IMD (Integrated Device Modulation). The existing technology suffers from the following problems: 1. Existing LEC cold light source application methods combined with IMD have a large circuit board area for the driving circuit on the cold light sheet. The control of brightness changes is achieved by controlling the input voltage or the frequency of the oscillation circuit. The half-wave circuit or full-wave circuit currently used has its own defects, resulting in unstable use of the driving circuit, small reduction in power consumption, and failure to achieve the ideal working life. Summary of the Invention

[0003] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: A method for applying LEC cold light sources in conjunction with IMD includes the following: S1. Cold light sheet manufacturing: polyester acrylic resin, modified polyurethane, hydroxyethyl acrylate, photosensitizer, additives, fillers, solvent slurry, dispersant and curing agent. The photosensitizer is a free radical photoinitiator. The filler includes one or more of calcium carbonate, barium sulfate, phyllite powder or alumina. The additive is a water-based leveling agent. S2. Dielectric layer preparation: Prepare ferrous chloride and nickel chloride, dissolve them in deionized water to obtain a mixed solution, place the mixed solution in a beaker, place the beaker in a water bath at 85 degrees Celsius, and stir thoroughly for 35 minutes. The dielectric layer is composed of several micro-nano particles with a flower-like appearance. S3. Circuit Application: The driving circuit of LEC electroluminescent film includes an overvoltage and overcurrent protection circuit set at the power input. The driving circuit includes a filter circuit, a correction circuit, and an inverter circuit. The filter circuit filters out differential mode and common mode interference signals in the mains power. The inverter circuit converts the voltage into a 110V, 1000Hz AC signal required for the operation of the electroluminescent film. S4. Perform correction: The correction circuit performs power factor correction on the filtered mains signal. The pins of the correction circuit are MOSFET drive pins, which control the MOSFET switch to change the output voltage.

[0004] A further improvement of the technical solution of the present invention is as follows: S1 Polyester acrylic resin, modified polyurethane, hydroxyethyl acrylate and filler are mixed and stirred evenly according to the weight ratio, the temperature is controlled to be less than 65°C, photosensitizer and additives are added and mixed to obtain a mixture, the mixture is ground to obtain a mixture with a fineness of less than 5μm, and the ground mixture is cured.

[0005] A further improvement of the technical solution of the present invention is as follows: the conductive filler is added to the mixing tank, the solvent slurry is added to the mixing tank, the mixture is stirred thoroughly, the dispersant is added, the mixture is stirred evenly, and then dispersed with an ultrasonic dispersant for 20-25 minutes. The adhesive resin is added to the resulting mixture to fully dissolve it and continue to disperse it. The curing agent and additives are added, and the mixture is ground to obtain the conductive plasma for the cold light sheet driving circuit.

[0006] A further improvement to the technical solution of the present invention is as follows: S2 Sodium hydroxide is dissolved in deionized water. After the sodium hydroxide is fully dissolved, it is added to a beaker in a water bath. During the dropwise addition process, vigorous stirring is maintained. After the dropwise addition is completed, the temperature is maintained at 85 degrees Celsius, and stirring is continued for 3 hours to allow the reaction to proceed fully. After the reaction is completed, the mixture is allowed to cool naturally to room temperature.

[0007] A further improvement of the technical solution of the present invention is that: the substrate of the S3 cold light sheet is PET, and an ultra-light luminous cold light sheet is prepared by coating technology, and the light intensity of the cold light sheet is greater than 300 Cd / m2.

[0008] A further improvement of the technical solution of the present invention is that the S4 correction circuit is equipped with a monostable trigger, the duration of the high level is determined by the resistor and capacitor, and when the output voltage is too high or the current in the power grid is too large, the pin amplifier circuit is turned off and the pin output signal is increased.

[0009] Due to the adoption of the above technical solution, the technical progress achieved by this invention compared to the prior art is as follows: This invention provides a method for applying LEC cold light source combined with IMD. Through the preparation of the dielectric layer, ferrous chloride and nickel chloride are dissolved in deionized water to obtain a mixed solution. The mixed solution is placed in a beaker and then placed in a water bath at 85 degrees Celsius. The mixture is stirred thoroughly for 35 minutes. The dielectric layer is composed of several micro / nano particles arranged in a flower-like pattern. Compared with the first-generation EL cold light sheet, the LEC cold light sheet is ultra-thin, has no temperature rise during operation, uniform light, good shock resistance, can still emit light after cutting, rich colors with high recognition, easy to use, low power consumption, and convenient manufacturing. It is also ultra-light, ultra-thin, emits soft light, is UV-free, has diverse colors, long lifespan, does not generate heat, and has strong brightness and color adjustment capabilities.

[0010] This invention provides a method for applying LEC cold light source in conjunction with IMD. Under the action of a cold light sheet, polyester acrylic resin, modified polyurethane, hydroxyethyl acrylate, and filler are mixed and stirred evenly according to a weight ratio, with the temperature controlled below 65°C. A photosensitizer and additives are added and mixed to obtain a mixture. The mixture is then ground to obtain a fineness below 5μm. The ground mixture is then cured. Adding additives and stirring during material processing effectively prevents mold growth or sedimentation during later storage, improving mechanical properties. While being environmentally friendly and energy-saving, the coating achieves the performance characteristics of traditional coatings. Traditional coatings generally use thermosetting or UV curing, which consumes a lot of energy. By adding a photosensitizer during material processing, the material can be rapidly cured by cold light source irradiation when applied to the surface of a metal object, thus replacing the traditional heating curing method. Using cold light source curing is more efficient and energy-saving than traditional thermosetting coatings. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the application process structure of the LEC cold light source application method combined with IMD according to the present invention; Figure 2 This is a schematic diagram of the process structure for manufacturing the electroluminescent film of the present invention. Detailed Implementation

[0012] The present invention will be further described in detail below with reference to embodiments: like Figure 1-2 As shown, this invention provides a method for applying a LEC cold light source in conjunction with IMD, including the following: S1. Cold light sheet manufacturing: polyester acrylic resin, modified polyurethane, hydroxyethyl acrylate, photosensitizer, additives, fillers, solvent slurry, dispersant and curing agent. The photosensitizer is a free radical photoinitiator. The filler includes one or more of calcium carbonate, barium sulfate, phyllite powder or alumina. The additive is a water-based leveling agent. S2. Dielectric layer preparation: Prepare ferrous chloride and nickel chloride, dissolve them in deionized water to obtain a mixed solution, place the mixed solution in a beaker, place the beaker in a water bath at 85 degrees Celsius, and stir thoroughly for 35 minutes. The dielectric layer is composed of several micro-nano particles with a flower-like appearance. S3. Circuit Application: The driving circuit of LEC electroluminescent film includes an overvoltage and overcurrent protection circuit set at the power input. The driving circuit includes a filter circuit, a correction circuit, and an inverter circuit. The filter circuit filters out differential mode and common mode interference signals in the mains power. The inverter circuit converts the voltage into a 110V, 1000Hz AC signal required for the operation of the electroluminescent film. S4. Perform correction: The correction circuit performs power factor correction on the filtered mains signal. The pins of the correction circuit are MOSFET drive pins, which control the MOSFET switch to change the output voltage.

[0013] In this implementation case, adding additives and stirring during material processing can effectively prevent mold growth or sedimentation during later storage, improving mechanical properties. While being environmentally friendly and energy-saving, the coating achieves the performance characteristics of traditional coatings. Traditional coatings typically use thermosetting or UV curing, which consumes a lot of energy. Adding a photosensitizer during material processing allows the material to cure rapidly when applied to metal surfaces using a cold light source, replacing the traditional heating curing method. Using a cold light source for curing is more efficient and energy-saving than traditional thermosetting coatings.

[0014] like Figure 1-2 As shown, the present invention provides a technical solution: Preferably, in step S1, polyester acrylic resin, modified polyurethane, hydroxyethyl acrylate, and filler are mixed and stirred evenly according to the weight ratio, with the temperature controlled below 65°C. A photosensitizer and additives are added and mixed to obtain a mixture. The mixture is then ground to obtain a mixture with a fineness below 5 μm. The ground mixture is then cured. Conductive filler is added to a mixing tank, and solvent slurry is added to the mixing tank and stirred thoroughly. A dispersant is added, and after stirring evenly, it is dispersed with an ultrasonic dispersant for 20-25 minutes. An adhesive resin is added to the resulting mixture to fully dissolve it and continue dispersing. A curing agent and additives are added, and the mixture is ground to obtain a cold light sheet. The driving circuit uses conductive plasma. In S2, sodium hydroxide is dissolved in deionized water. After the sodium hydroxide is fully dissolved, it is added to the beaker of a water bath. During the dropwise addition process, vigorous stirring is maintained. After the dropwise addition is completed, the temperature is maintained at 85 degrees Celsius, and stirring is continued for 3 hours to allow the reaction to proceed fully. After the reaction is completed, it is naturally cooled to room temperature. In S3, the substrate of the electroluminescent sheet is PET. An ultra-light luminous electroluminescent sheet is prepared using coating technology. The light intensity of the obtained electroluminescent sheet is greater than 300 Cd / m2. In S4, the correction circuit is equipped with a monostable trigger. The duration of the high level is determined by the resistor and capacitor. When the output voltage is too high or the current in the power grid is too large, the pin amplifier circuit is turned off, and the pin output signal is increased.

[0015] In this embodiment, compared with the first-generation EL cold light sheet, the LEC cold light sheet is ultra-thin, does not heat up during operation, has uniform light, good shock resistance, can still emit light after cutting, has rich colors and high recognition, is easy to use, has low power consumption, and is easy to manufacture. It is also ultra-light, ultra-thin, has soft light, no ultraviolet rays, a variety of colors, long life, does not generate heat, and has strong brightness and color adjustment capabilities.

[0016] The working principle of this LEC cold light source application method combined with IMD will be explained in detail below.

[0017] like Figure 1-2As shown, the materials used to manufacture the electroluminescent sheet include polyester acrylate resin, modified polyurethane, hydroxyethyl acrylate, photosensitizer, additives, fillers, solvent slurry, dispersant, and curing agent. The photosensitizer is a free radical photoinitiator. The filler includes one or more of calcium carbonate, barium sulfate, phyllite powder, or alumina. The additive is a water-based leveling agent. The polyester acrylate resin, modified polyurethane, hydroxyethyl acrylate, and filler are mixed and stirred evenly according to the weight ratio, with the temperature controlled below 65℃. The photosensitizer and additives are then added and mixed to obtain a mixture. The mixture is then ground to obtain a fineness below 5μm. The ground mixture is then cured. Conductive filler is added to a mixing tank, and solvent slurry is added to the mixing tank and stirred thoroughly. The dispersant is added and stirred evenly before use. The ultrasonic dispersant is dispersed for 20-25 minutes. Adhesive resin is added to the resulting mixture to ensure complete dissolution and continued dispersion. A curing agent and additives are then added, and the mixture is ground to obtain conductive plasma for the cold light sheet drive circuit. The ground mixture is then cured. Adding additives and stirring during material processing effectively prevents mold growth or sedimentation during later storage, improving mechanical properties. While being environmentally friendly and energy-saving, the coating achieves the performance of traditional coatings. Traditional coatings typically use heat curing or UV curing, which consumes a lot of energy. By adding a photosensitizer during material processing, the material can be rapidly cured by cold light irradiation when applied to metal surfaces, replacing traditional heat curing methods. Using cold light curing is significantly more energy-efficient than traditional methods. Traditional thermosetting coatings are more energy-efficient. Prepare ferrous chloride and nickel chloride, dissolve them in deionized water to obtain a mixed solution. Place the mixed solution in a beaker and put the beaker in a water bath at 85 degrees Celsius. Stir thoroughly for 35 minutes. The dielectric layer has a structure composed of numerous micro / nano particles arranged in a flower-like pattern. Dissolve sodium hydroxide in deionized water. After the sodium hydroxide is fully dissolved, add it to the beaker in the water bath while stirring vigorously. After the addition is complete, maintain the temperature at 85 degrees Celsius and continue stirring for 3 hours to allow for a complete reaction. After the reaction is complete, allow it to cool naturally to room temperature. Compared with the first-generation EL cold light sheet, LEC cold light sheets are ultra-thin, do not heat up during operation, provide uniform light, have good shock resistance, and can still emit light after cutting. The light emitted is rich in color and highly recognizable, easy to use, consumes little power, and is easy to manufacture. It is ultra-lightweight, ultra-thin, emits soft light, is UV-free, offers diverse colors, has a long lifespan, generates no heat, and has strong brightness and color adjustment capabilities. The LEC (Light Emitting Capacitor) cold light sheet's driving circuit includes overvoltage and overcurrent protection circuits at the power input. The driving circuit comprises a filter circuit, a correction circuit, and an inverter circuit. The filter circuit removes differential-mode and common-mode interference signals from the mains power. The inverter circuit converts the voltage into a 110V, 1000Hz AC signal required for the cold light sheet's operation. The cold light sheet substrate is PET, and an ultra-lightweight light-emitting cold light sheet is prepared using coating technology. The resulting cold light sheet has a light intensity greater than 300 Cd / m². The correction circuit performs power factor correction on the filtered mains power signal.The calibration circuit uses MOSFET driver pins to control the MOSFET switching and change the output voltage. The calibration circuit incorporates a monostable multivibrator; the duration of the high-level signal is determined by resistors and capacitors. When the output voltage is too high or the mains current is too large, the pin amplifier circuit is shut down, increasing the pin output signal.

[0018] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A method for applying a LEC cold light source combined with IMD, comprising the following, characterized in that: S1. Cold light sheet manufacturing: polyester acrylic resin, modified polyurethane, hydroxyethyl acrylate, photosensitizer, additives, fillers, solvent slurry, dispersant and curing agent. The photosensitizer is a free radical photoinitiator. The filler includes one or more of calcium carbonate, barium sulfate, phyllite powder or alumina. The additive is a water-based leveling agent. S2. Dielectric layer preparation: Prepare ferrous chloride and nickel chloride, dissolve them in deionized water to obtain a mixed solution, place the mixed solution in a beaker, place the beaker in a water bath at 85 degrees Celsius, and stir thoroughly for 35 minutes. The dielectric layer is composed of several micro-nano particles with a flower-like appearance. S3. Circuit Application: The driving circuit of LEC electroluminescent film includes an overvoltage and overcurrent protection circuit set at the power input. The driving circuit includes a filter circuit, a correction circuit, and an inverter circuit. The filter circuit filters out differential mode and common mode interference signals in the mains power. The inverter circuit converts the voltage into a 110V, 1000Hz AC signal required for the operation of the electroluminescent film. S4. Perform correction: The correction circuit performs power factor correction on the filtered mains signal. The pins of the correction circuit are MOSFET drive pins, which control the MOSFET switch to change the output voltage.

2. The method for applying LEC cold light source in conjunction with IMD according to claim 1, characterized in that: S1 mixes polyester acrylic resin, modified polyurethane, hydroxyethyl acrylate and filler according to the weight ratio and stirs evenly, controlling the temperature to be less than 65℃, adds photosensitizer and additives and mixes to obtain a mixture, grinds the mixture to obtain a mixture with a fineness of less than 5μm, and then cures the ground mixture.

3. The method for applying LEC cold light source in conjunction with IMD according to claim 2, characterized in that: The conductive filler is added to the mixing tank, the solvent slurry is added to the mixing tank, and the mixture is stirred thoroughly. The dispersant is added, and after stirring evenly, the mixture is dispersed with an ultrasonic dispersant for 20-25 minutes. The adhesive resin is added to the resulting mixture to fully dissolve it and continue to disperse it. The curing agent and additives are added, and the mixture is ground to obtain the conductive plasma for the cold light sheet driving circuit.

4. The method for applying LEC cold light source in conjunction with IMD according to claim 1, characterized in that: S2 dissolves sodium hydroxide in deionized water. After the sodium hydroxide is fully dissolved, it is added to a beaker in a water bath. During the dropwise addition, vigorous stirring is maintained. After the dropwise addition is completed, the temperature is maintained at 85 degrees Celsius, and stirring is continued for 3 hours to allow the reaction to proceed fully. After the reaction is completed, the mixture is allowed to cool naturally to room temperature.

5. The method for applying LEC cold light source in conjunction with IMD according to claim 1, characterized in that: The S3 electroluminescent sheet uses PET as its substrate and is prepared using a coating technology to produce an ultralight electroluminescent sheet with a light intensity greater than 300 Cd / m2.

6. The method for applying LEC cold light source in conjunction with IMD according to claim 1, characterized in that: The S4 correction circuit is equipped with a monostable trigger. The duration of the high level is determined by the resistor and capacitor. When the output voltage is too high or the current in the mains is too large, the pin amplifier circuit is turned off and the pin output signal is increased.