Efficient light source driving method based on glass-based small-spacing display screen

Abstract

The invention discloses an efficient light source driving method based on a glass-based small-spacing display screen, and the method comprises the steps: monitoring the temperature of a display screen light source and a driving circuit through an integrated temperature sensor, and dynamically adjusting the current waveform through a PID control algorithm according to the temperature feedback information, so as to effectively reduce the power loss caused by temperature rise, and improve the power efficiency. A driving chip based on a wide bandgap semiconductor (such as gallium nitride GaN) is adopted, the current waveform is optimized, the current conversion efficiency reaches 90% or above, and energy loss caused by the irregular current waveform is reduced. And intelligent thermal management is realized by integrating a temperature sensor and a PID control algorithm. When the temperature of the light source and the driving circuit is too high, the current waveform can be adjusted in real time, the overheating problem is avoided, and the temperature rise of the light source and the circuit is remarkably reduced, so that the service life of the light source is prolonged, and long-term stable operation of the display screen is ensured. Compared with the prior art, light source efficiency reduction and display effect distortion caused by overheating can be effectively avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of small-pitch display, and particularly to an efficient light source driving method based on a glass-based small-pitch display screen. Background Art

[0002] The efficient light source driving method based on a glass-based small-pitch display screen mainly improves the efficiency and stability of the light source by optimizing the current driving technology and the light source modulation method. This method usually involves using a high-frequency driving current, reducing power loss by precisely adjusting the current waveform, and maximizing the luminous efficiency of the light source. At the same time, in combination with the unique characteristics of the glass-based display screen, the driving system adopts an intelligent temperature control and current feedback mechanism to effectively address the heat accumulation problem caused by high brightness and long-term operation. In addition, in order to meet the high-resolution and high-density requirements of the small-pitch display screen, a fine dynamic brightness adjustment technology is also adopted to achieve better visual effects and lower energy consumption. The combination of these technologies makes the glass-based small-pitch display screen have advantages in high efficiency, long life, and low power consumption.

[0003] In the prior art, the efficient light source driving method based on the glass-based small-pitch display screen has the following disadvantages: Since small-pitch display screens usually have a high brightness and a high-density pixel arrangement, this will cause a large amount of heat to be generated by the light source and the circuit. If the thermal management is improper, it is easy to cause overheating problems, reduce the efficiency of the light source, and even affect the stability and lifespan of the display screen. The cooling systems of the prior art may not be able to effectively cope with the thermal load brought by the high power density, resulting in a reduction in driving efficiency; Although the current efficient light source driving methods can optimize the current waveform and reduce some power losses in some cases, there is still a certain amount of energy waste, especially in the case of high brightness requirements or high dynamic range. Due to excessive current pulse modulation and frequency regulation, it may cause a certain amount of power loss and heat generation, and the energy efficiency still fails to reach the optimal state; The efficient light source driving methods usually require fine current regulation and temperature feedback control, which increases the complexity of the driving circuit. In order to achieve stable brightness adjustment and precise light source control, the circuit design becomes more complex, which may lead to an increase in cost and difficulties in system debugging; In order to improve the driving efficiency and reduce power consumption, the prior art often needs to adopt high-precision driving chips, complex current regulation modules, and efficient heat dissipation solutions, all of which increase the manufacturing cost of the system. At the same time, due to the high precision requirements of small-pitch display screens, the production cost of the driving module is also relatively high, which limits its application in low-cost markets; Under the requirements of high brightness and high resolution, the existing driving methods may face certain challenges in display effects. Especially in the optimization of contrast and dynamic range, the current driving technologies may not be able to fully adapt to all application scenarios. In high dynamic scenarios or extreme brightness environments, problems such as light spots and light leakage that affect the visual effect may occur; Although some driving methods can provide a relatively high light source brightness, the high brightness working mode will accelerate the aging of the light source. Long-term high-power driving may lead to a shortening of the light source lifespan, affecting the overall service life of the display screen. Especially in display occasions with high brightness requirements, the attenuation rate of the light source is relatively fast.

[0004] Therefore, we propose an efficient light source driving method based on the glass-based small-pitch display screen. Summary of the Invention

[0005] To achieve the above object, the present invention provides the following technical solution: An efficient light source driving method based on the glass-based small-pitch display screen, which combines intelligent thermal management control, low-loss driving technology, dynamic brightness adjustment, and current intelligent feedback mechanism to optimize the energy efficiency and thermal control during the driving process. The specific steps include:

[0006] S1: Intelligent thermal management control: Monitor the temperature of the display screen light source and the driving circuit through an integrated temperature sensor, and dynamically adjust the current waveform according to the temperature feedback information through the PID control algorithm to effectively reduce the power loss caused by temperature rise;

[0007] S2: Low-loss driving technology: Use a driving chip based on wide-bandgap semiconductors (such as gallium nitride GaN) to optimize the current waveform, so that the current conversion efficiency reaches more than 90%, reducing the energy loss caused by irregular current waveforms;

[0008] S3: Multi-level brightness adjustment: Through the per-pixel brightness control algorithm, according to the brightness requirements of different display scenarios, accurately adjust the current distribution of each pixel, reduce ineffective power consumption, and at the same time ensure the consistency of the display effect and the accuracy of the high-brightness area;

[0009] S4: Intelligent current feedback mechanism: Use a feedback mechanism based on deep learning to dynamically adjust the driving current of the light source in each area, making the current input of each pixel more accurate, avoiding energy waste, and improving system stability and display effect;

[0010] S5: Optimization of thermal interface materials: Use thermal interface materials with high thermal conductivity between the display driving circuit and the glass substrate to enhance the heat conduction effect and ensure the long-term efficient and stable operation of the system.

[0011] Preferably, in the intelligent thermal management control step, through the temperature feedback mechanism, the temperature change of the display screen is monitored in real time. When the temperature exceeds the preset threshold, the waveform and intensity of the driving current are automatically adjusted through the PID algorithm, thereby avoiding energy loss and light source aging caused by overheating.

[0012] Preferably, the low-loss driving technology uses a GaN (gallium nitride) semiconductor driving chip, whose working efficiency reaches more than 90%, and the power loss is reduced by 20%-30% compared with traditional silicon-based driving chips.

[0013] Preferably, the multi-level brightness adjustment algorithm is based on per-pixel adjustment technology, dynamically optimizing the current output of each pixel, ensuring the efficient output of the display brightness, and avoiding large-area regions working at high brightness simultaneously, reducing unnecessary energy consumption.

[0014] Preferably, the intelligent current feedback mechanism uses a deep learning algorithm to adjust the current distribution while monitoring the display content in real time, ensuring the balance between high contrast and low power consumption, improving the display effect while reducing unnecessary energy waste.

[0015] Compared with the prior art, the present invention provides an efficient light source driving method for a glass-based small-pitch display screen, having the following beneficial effects:

[0016] 1. The efficient light source driving method for glass-based small-pitch display screens realizes intelligent thermal management by integrating a temperature sensor and a PID control algorithm. When the temperatures of the light source and the driving circuit are too high, it can adjust the current waveform in real time to avoid overheating problems, significantly reduce the temperature rise of the light source and the circuit, thereby extending the service life of the light source and ensuring the long-term stable operation of the display screen. Compared with traditional technologies, the present invention can effectively avoid the reduction of light source efficiency and the distortion of display effects caused by overheating.

[0017] 2. The efficient light source driving method for glass-based small-pitch display screens uses wide-bandgap semiconductor materials such as gallium nitride (GaN) as driving chips, which can provide more efficient current conversion at high frequencies, reduce the losses generated by high-frequency switching in traditional silicon-based chips, and thus improve the overall energy efficiency. This reduces the power loss of the driving system by 20%-30%, thereby improving the overall energy efficiency and energy conservation of the display screen.

[0018] 3. The efficient light source driving method for glass-based small-pitch display screens adopts the per-pixel brightness dynamic adjustment technology. The present invention can accurately adjust the current input of each pixel according to the different brightness requirements of the display content, avoiding ineffective high-brightness power consumption. By optimizing the brightness distribution, the display screen can maintain the display effect in high-brightness areas while reducing the power consumption in other areas, making the display effect more uniform and significantly reducing energy consumption.

[0019] 4. The efficient light source driving method for glass-based small-pitch display screens, through the current intelligent feedback mechanism based on deep learning algorithms, can analyze the brightness requirements of the display content in real time and dynamically adjust the current input to optimize the current distribution. This feedback mechanism can not only improve the uniformity of the display effect, but also reduce unnecessary energy waste, reduce light source attenuation, and thus improve the working stability of the display screen and the light source life.

[0020] 5. The efficient light source driving method for glass-based small-pitch display screens uses a thermal interface material with a high thermal conductivity between the display screen driving circuit and the glass substrate. The present invention effectively improves the heat conduction efficiency and enhances the heat dissipation effect of the system. This enables the display screen to maintain a low temperature even in the high-brightness working state, avoiding the problems of light source performance degradation and system stability caused by poor heat dissipation in traditional systems. Detailed implementation manners

[0021] Next, the technical solutions in the embodiments of the present invention will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Embodiment

[0023] Embodiment of an efficient light source driving method for a glass-based small-pitch display screen

[0024] An efficient light source driving method for a glass-based small-pitch display screen, which optimizes the energy efficiency and thermal control during the driving process through the combination of intelligent thermal management control, low-loss driving technology, dynamic brightness adjustment and current intelligent feedback mechanism. The specific steps include:

[0025] S1: Intelligent thermal management control: Monitor the temperature of the display screen light source and the driving circuit through an integrated temperature sensor, and dynamically adjust the current waveform according to the temperature feedback information through the PID control algorithm to effectively reduce the power loss caused by temperature rise;

[0026] S2: Low-loss driving technology: Adopt a driving chip based on wide-bandgap semiconductors (such as gallium nitride GaN) to optimize the current waveform, so that the current conversion efficiency reaches more than 90%, and reduce the energy loss caused by irregular current waveforms;

[0027] S3: Multi-level brightness adjustment: Through the per-pixel brightness control algorithm, accurately adjust the current distribution of each pixel according to the brightness requirements of different display scenarios, reduce the ineffective power consumption, and ensure the consistency of the display effect and the accuracy of the high-brightness area;

[0028] S4: Current intelligent feedback mechanism: Adopt a feedback mechanism based on deep learning to dynamically adjust the light source driving current of each area, make the current input of each pixel more accurate, avoid energy waste, and improve the system stability and display effect;

[0029] S5: Optimization of thermal interface materials: Adopt a thermal interface material with high thermal conductivity between the display screen driving circuit and the glass substrate to enhance the heat conduction effect and ensure the long-term efficient and stable operation of the system.

[0030] Specifically, in the intelligent thermal management control step, through the temperature feedback mechanism, the temperature change of the display screen is monitored in real time. When the temperature exceeds the preset threshold, the waveform and intensity of the driving current are automatically adjusted through the PID algorithm, thereby avoiding the energy loss and light source aging caused by overheating.

[0031] Specifically, the low-loss driving technology adopts a GaN (gallium nitride) semiconductor driving chip, whose working efficiency reaches more than 90%, and the power loss is reduced by 20%-30% compared with the traditional silicon-based driving chip.

[0032] Specifically, the multi-level brightness adjustment algorithm is based on the per-pixel adjustment technology, dynamically optimizes the current output of each pixel, ensures the efficient output of the display brightness, and avoids large-area regions working at high brightness at the same time, reducing unnecessary energy consumption.

[0033] Specifically, the intelligent current feedback mechanism adopts a deep learning algorithm. While real-time monitoring the display content, it adjusts the current distribution to ensure the balance between high contrast and low power consumption, improving the display effect while reducing unnecessary energy waste.

[0034] Through the above technical solutions, in the present invention, intelligent thermal management is achieved by integrating a temperature sensor and a PID control algorithm. When the temperature of the light source and the driving circuit is too high, it can adjust the current waveform in real time to avoid overheating problems, significantly reducing the temperature rise of the light source and the circuit, thereby extending the service life of the light source and ensuring the long-term stable operation of the display screen. Compared with traditional technologies, the present invention can effectively avoid the reduction of light source efficiency and the distortion of display effect caused by overheating; by using wide bandgap semiconductor materials such as gallium nitride (GaN) as the driving chip, it can provide more efficient current conversion at high frequencies, reducing the losses generated by high-frequency switching in traditional silicon-based chips, thereby improving the overall energy efficiency. This reduces the power loss of the driving system by 20%-30%, thereby improving the overall energy efficiency and energy saving of the display screen; by adopting the technology of dynamic adjustment of pixel-by-pixel brightness, the present invention can accurately adjust the current input of each pixel according to the different brightness requirements of the display content, avoiding the high-brightness power consumption of invalidity. By optimizing the brightness distribution, the display screen can maintain the display effect in the high-brightness area while reducing the power consumption in other areas, making the display effect more uniform and significantly reducing the energy consumption; through the intelligent current feedback mechanism based on the deep learning algorithm, it can analyze the brightness requirements of the display content in real time and dynamically adjust the current input to optimize the current distribution. This feedback mechanism can not only improve the uniformity of the display effect, but also reduce unnecessary energy waste, reduce the attenuation of the light source, thereby improving the working stability of the display screen and the service life of the light source; by using a thermal interface material with high thermal conductivity between the display screen driving circuit and the glass substrate, the present invention effectively improves the heat conduction efficiency and enhances the heat dissipation effect of the system. This enables the display screen to maintain a lower temperature even in the high-brightness working state, avoiding the problems of light source performance degradation and system stability caused by poor heat dissipation in the traditional system.

[0035] Raw material preparation

[0036] Driving chip: Gallium nitride (GaN)-based driving chip (such as Cree XHP70 series);

[0037] Temperature sensor: Precise temperature probe, suitable for monitoring the temperature of the display screen and the circuit;

[0038] Thermal interface material: High thermal conductivity graphite composite material, used for heat conduction between the driving circuit and the glass substrate;

[0039] MCU: High-performance microcontroller (such as STM32) for current control and temperature regulation.

[0040] Step 1: Intelligent Thermal Management Control

[0041] Install a temperature sensor in the display screen to monitor the temperature of the core area. When the temperature exceeds the preset threshold (e.g., 65 °C), adjust the current waveform through the PID control algorithm to reduce the driving current intensity, keep the temperature within the safe range, and prevent the light source efficiency from decreasing or the lifespan from shortening due to excessive temperature.

[0042] Step 2: Low-Loss Driving Technology

[0043] Use a GaN-based driving chip to achieve efficient current conversion at high frequencies. By precisely adjusting the current waveform, maximize the power conversion efficiency and reduce the losses during high-frequency switching. The system operating efficiency can reach over 90%, and the power loss is reduced by 20% - 30%.

[0044] Step 3: Multi-Level Brightness Adjustment

[0045] Adopt per-pixel brightness adjustment technology to analyze the display requirements of each pixel in real time and dynamically adjust its current output. When the displayed content changes, automatically optimize the brightness of each area to avoid energy waste caused by excessive brightness. The brightness control accuracy reaches within 1%, ensuring a uniform and efficient display effect.

[0046] Step 4: Intelligent Current Feedback Mechanism

[0047] Through deep learning algorithms, analyze the displayed content in real time and feedback to adjust the current distribution. For example, when displaying a darker scene, automatically reduce unnecessary brightness output, while when displaying a high-contrast or dynamic picture, increase the brightness output to ensure the optimization of the display effect and the balance of low power consumption.

[0048] Step 5: Heat Dissipation Optimization

[0049] Apply a high thermal conductivity graphite material between the driving circuit and the glass substrate to significantly improve the heat conduction efficiency, ensure that the system can still dissipate heat efficiently and maintain a low temperature state during high brightness and long-term operation, thereby extending the lifespan of the light source.

[0050] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An efficient light source driving method for a glass-based small-pitch display screen, characterized in that: This method optimizes energy efficiency and thermal control during the driving process through the combination of intelligent thermal management control, low-loss driving technology, dynamic brightness adjustment, and current intelligent feedback mechanism. The specific steps include: S1: Intelligent thermal management control: Monitor the temperature of the display screen light source and the driving circuit through an integrated temperature sensor, and dynamically adjust the current waveform according to the temperature feedback information through the PID control algorithm to effectively reduce the power loss caused by temperature rise; S2: Low-loss driving technology: Adopt a driving chip based on wide-bandgap semiconductors (such as gallium nitride GaN) to optimize the current waveform, so that the current conversion efficiency reaches more than 90%, and reduce the energy loss caused by irregular current waveforms; S3: Multi-level brightness adjustment: Through the per-pixel brightness control algorithm, accurately adjust the current distribution of each pixel according to the brightness requirements of different display scenarios, reduce the ineffective power consumption, and ensure the consistency of the display effect and the accuracy of the high-brightness area; S4: Current intelligent feedback mechanism: Adopt a feedback mechanism based on deep learning to dynamically adjust the driving current of the light source in each area, make the current input of each pixel more accurate, avoid energy waste, and improve the system stability and display effect; S5: Optimization of thermal interface materials: Adopt a thermal interface material with high thermal conductivity between the display driving circuit and the glass substrate to enhance the heat conduction effect and ensure the long-term efficient and stable operation of the system.

2. The high-efficiency light source driving method for a glass-based small-pitch display screen according to claim 1, wherein: In the intelligent thermal management control step, through the temperature feedback mechanism, the temperature change of the display screen is monitored in real time. When the temperature exceeds the preset threshold, the waveform and intensity of the driving current are automatically adjusted through the PID algorithm, so as to avoid energy loss and light source aging caused by overheating.

3. The high-efficiency light source driving method based on a glass-based small-pitch display screen according to claim 1, wherein: The low-loss driving technology adopts a GaN (gallium nitride) semiconductor driving chip, whose working efficiency reaches more than 90%, and the power loss is reduced by 20%-30% compared with the traditional silicon-based driving chip.

4. An efficient light source driving method for a glass-based small-pitch display screen according to claim 1, characterized in that: The multi-level brightness adjustment algorithm is based on the per-pixel adjustment technology, dynamically optimizes the current output of each pixel, ensures the efficient output of the display brightness, and avoids large-area regions working at high brightness states simultaneously, reducing unnecessary energy consumption.

5. An efficient light source driving method for a glass-based small-pitch display screen according to claim 1, characterized in that: The current intelligent feedback mechanism adopts a deep learning algorithm to adjust the current distribution while monitoring the display content in real time, ensuring the balance between high contrast and low power consumption, improving the display effect while reducing unnecessary energy waste.