序章
In daily life, 屋外用LEDディスプレイスクリーン are always providing us with new information. However, the light in the outdoor environment is unpredictable, and the distance and viewing angle of the audience are also different.
How to ensure that the outdoor LED display screen can present the best display effect in different environments while saving energy consumption has become the focus of common concern inside and outside the industry. Automatic brightness adjustment technology was born to solve this problem.
1. Basic needs for brightness adjustment of outdoor LED display screens
輝度 adjustment of outdoor LED display screens is a comprehensive consideration involving many factors, ensuring that the best visual effects can be provided under different environmental conditions while taking into account energy efficiency and user experience.
1). Complexity of outdoor environment:
- Light changes greatly:
The light conditions in the outdoor environment vary with weather, time, and season, from strong sunlight on sunny days to soft light on cloudy days and then to darkness at night.
The brightness of the LED display screen needs to be able to automatically adjust according to these changes to ensure that the content can be clearly displayed under any light conditions.
- Audience distance varies:
Outdoor LED display screens may serve audiences at different distances, from pedestrians nearby to vehicle passengers far away.
Therefore, the brightness of the display needs to be high enough so that viewers at a distance can also see the content clearly, but at the same time, it is also necessary to avoid excessive light stimulation to nearby viewers.
2). Balance between visual effects and energy consumption:
- Ensure display effect:
Outdoor LED displays require sufficient brightness to ensure the clarity and visibility of the content, especially in strong light environments. However, too high brightness not only wastes energy but may also cause discomfort to the audience’s eyes.
- Reducing energy consumption:
With the improvement of environmental awareness, reducing energy consumption has become an important consideration.
Through the intelligent brightness adjustment system, the brightness of the display can be automatically adjusted according to the actual ambient light and audience needs, thereby reducing energy waste while ensuring the display effect.
3). Improve user experience:
- Avoid visual fatigue:
Watching a display that is too bright or too dark for a long time will cause visual fatigue. Through reasonable brightness adjustment, it can ensure that the audience can remain comfortable when watching for a long time.
- Reflection problem:
Sunlight, water surfaces, or buildings in outdoor environments may produce reflections, affecting the visibility of the display. By adopting anti-reflective materials and reasonable brightness settings, the impact of reflections on the viewing experience can be reduced.
- Improve viewing comfort:
Comprehensively consider factors such as brightness, contrast, color saturation, etc., and achieve the best visual effect through the intelligent adjustment system to improve the viewing comfort of the audience.
2. Working principle of automatic brightness adjustment technology of outdoor LED display
1). Hardware level
1.1). Application of photosensors or other sensors
- Photosensors:Like a small light detector, it can sense the intensity of the surrounding light and convert this information into electrical signals.
1.2). Accurate circuit design and controller
Circuit design: The circuit is like the “transmitter” of the display screen. It is responsible for transmitting the sensor signal to the controller and then transmitting the controller’s instructions to each pixel.
コントローラ： The controller is like the “commander” of the display screen. After receiving the sensor signal, it will decide how to adjust the brightness and then issue instructions to the circuit.
1.3). Current regulation and pulse width modulation (PWM)
Current regulation: LED lights are like small bulbs. The greater the current flowing through them, the brighter they are. By adjusting the current, we can control the brightness of the LED.
Pulse width modulation (PWM): This technology quickly adjusts the on and off time of the bulb to control its brightness. For LED, it is to control its brightness by turning it on and off quickly.
2). Software level
- Brightness adjustment function in the display control system:
This function is like an intelligent assistant. It will automatically adjust the brightness of the display according to the external light, time, or our needs to make viewing more comfortable.
- Built-in algorithm to achieve automatic brightness balance:
The algorithm is like a smart regulator. It can keep each part of the display at an appropriate brightness to avoid some places being too bright and some places being too dark.
- Intelligent lighting technology:
This technology is very smart. It knows what the content of the display is and then only makes the places that need to be bright and the places that do not need to be bright a little darker, thereby saving energy.
3). Specific implementation process
- The photosensitive sensor collects ambient light intensity information:
The photosensitive sensor is like a small observer. It is always observing the surrounding light and collecting this information.
- The sensor converts the light signal into an electrical signal and transmits it to the microcontroller or main control chip:
The sensor converts the collected light information into an electrical signal and then transmits it to the “commander” – the microcontroller or main control chip.
- The microcontroller or main control chip processes the signal and calculates the appropriate brightness adjustment value according to the preset algorithm:
After receiving the signal, the “commander” will calculate a suitable brightness value according to the preset algorithm and rules.
- By controlling the driving circuit, the brightness of the LED display is adjusted:
Finally, the “commander” sends the brightness adjustment instruction to each pixel through the circuit, allowing them to adjust the brightness according to the instruction.
In general, the automatic brightness adjustment technology of the outdoor LED display is like installing a smart perception system and control system on the display, so that it can automatically adjust the brightness according to the environment, making viewing more comfortable and saving energy.
3. Advantages and applications of automatic brightness adjustment technology of outdoor LED display
1). 利点
- 知的：
The automatic brightness adjustment technology of the outdoor LED display can automatically adjust the brightness of the display according to the changes in the ambient light intensity.
This means that without manual intervention, the display can maintain the best visual effect under different lighting conditions. This intelligent feature not only improves the automation of the display, but also reduces the tediousness of manual operation.
- 省エネと環境保護:
By automatically adjusting the brightness, the outdoor LED display can effectively reduce energy consumption while ensuring the visual effect.
In a dimly lit environment, the display automatically lowers the brightness, thereby reducing unnecessary energy waste. In addition, automatic brightness adjustment can also reduce light pollution and be more friendly to the surrounding environment.
Taking the outdoor LED display as an example, through the automatic brightness adjustment technology, its brightness is reduced by about 30% at night, and it automatically adjusts to the appropriate brightness according to the light intensity during the day.
According to statistics, this measure has reduced the energy consumption of the display by about 20%, effectively saving energy. At the same time, the reasonable control of brightness also reduces light pollution and is more friendly to the surrounding environment.
- Improve the display effect:
Whether it is during the day with strong light or at night with dark light, the outdoor LED display can automatically adjust the brightness to maintain the clarity and brightness of the displayed content.
This technology ensures that the display can present the best visual effects under various lighting conditions, improving the audience’s viewing experience.
For example: In the application of stadiums, since the game time may span day and night, the outdoor LED display needs to cope with different lighting conditions.
Automatic brightness adjustment technology can ensure that the display screen does not reflect light under strong light, does not blur in dark light environments, and always maintains a clear and bright display effect, bringing an excellent viewing experience to the audience.
- Improve user experience:
Automatic brightness adjustment technology avoids visual fatigue and reflection problems caused by screens that are too bright or too dark. Audiences can enjoy a comfortable and clear viewing experience at any time and any place.
This not only improves user satisfaction but also enhances the attractiveness of outdoor LED displays.
2). Application scenario analysis
- Commercial applications such as 屋外看板 and information release screens:
In the commercial field, automatic brightness adjustment technology for outdoor LED displays is widely used in scenes such as billboards and information release screens.
By automatically adjusting the brightness, these displays can maintain the best visual effects under different lighting conditions and attract more audience attention.
At the same time, automatic brightness adjustment can also effectively save energy and reduce operating costs.
- スタジアム, concerts, and other large-scale event sites:
At stadiums, concerts, and other large-scale event sites, outdoor LED displays are indispensable information display tools.
Automatic brightness adjustment technology can automatically adjust the brightness of the display screen according to the changes in the light on the scene, ensuring that the audience can clearly see the game screen or performance content at any angle.
This not only improves the audience’s viewing experience but also enhances the atmosphere and effect of the scene.
- Traffic signs, emergency evacuation instructions, and other public safety fields:
In the field of public safety, outdoor LED display screens are also widely used in scenes such as traffic signs and emergency evacuation instructions.
Automatic brightness adjustment technology can ensure that these display screens can maintain clear display effects under various lighting conditions, providing accurate and timely information guidance to the public.
Especially in emergency situations, such as fires, earthquakes, and other disasters, automatic brightness adjustment technology can ensure the clarity and visibility of evacuation instructions and improve the public’s self-rescue ability.
4. Development trends and challenges of automatic brightness adjustment technology for outdoor LED display screens
1). Development trend
- テクノロジーの統合:
Today’s outdoor LED display screens are getting smarter and smarter. They are beginning to “partner” with cutting-edge technologies such as the Internet of Things and big data. Through the Internet of Things, the display screen can receive instructions remotely and collect environmental data, such as light intensity.
Big data helps analyze these data to make brightness adjustments more accurate and more in line with everyone’s needs. In the future, this technology integration will make the display screen smarter and understand you better.
- Accuracy improvement:
The continuous progress of sensors and algorithms has made the brightness adjustment of outdoor LED displays more and more accurate.
New sensors can more sensitively perceive light changes, and smart algorithms can respond quickly and adjust the brightness. In this way, the display screen can maintain the best visual effect regardless of day or night.
2). Challenge
- Environmental complexity:
The light in the outdoor environment varies greatly; from sunny days to dark nights, the light intensity and color are different. This is a test for sensors and algorithms.
Sensors must work accurately under various light conditions, and algorithms must also respond to various emergencies, such as sudden shading or sudden changes in light. This requires continuous technical improvement.
- 原価管理：
Although the automatic brightness adjustment technology of outdoor LED displays is very advanced, the cost is not low. High-precision sensors and intelligent algorithms are quite expensive, which increases production costs.
Therefore, how to reduce costs while maintaining performance is a big problem. In the future, we must rely on technological innovation and cost-control strategies to solve this problem so that more people can use this advanced technology.
結論
In summary, the automatic brightness adjustment technology of outdoor LED displays plays an increasingly important role in the field of outdoor display with its advantages of intelligence, energy saving and environmental protection, and improved display effect and user experience.
With the continuous advancement of technology and the continuous expansion of applications, the automatic brightness adjustment technology will respond to changes in ambient light more accurately and quickly, bringing more outstanding display effects and lower energy consumption to outdoor LED display screens.
最後に、LEDディスプレイスクリーンについてさらに詳しく知りたい場合は、 ご連絡ください。
