View Distance

The image perception is influenced by the distance between the viewer and the LED screen. The ideal viewing distance is 1x ~1.5x the pixel pitch in meters. So in a 12 mm pixel pitch screen it is around 12 meters. At this distance the human eye (or brain) no longer sees individual pixels but the whole picture. Of course you can get closer (and certainly further away) watching the screen. Closer to the screen the pixels will become increasingly evident, but the image will no long remain acceptable.

The viewing angles for an LED displays are measured horizontally and vertically, and indicate over what range images on the LED screen are fully visible without the screen displaying a negative image.The viewing angle of a LED display represents the limit of its optimal picture quality. Sit at a position at a wider angle than that of its viewing angle and you will experience worse picture.

 

 

The LED industry defines viewing angle as the full angle at which brightness is half of the brightness from dead center. (The view angle of a screen is by convention the angle within which the brightness of a display is equal to the 50% of the frontal luminosity.).More scientifically, if ø (angle theta) is the angle from off center (0°) where the LED’s brightness is half, then 2ø is defined as the full viewing angle.

high brightness led screen

For example, a LED screen with 5000 NIT frontal brightness has a visibility angle equal to the angle by which the brightness is reduced to 2500 NIT. This visibility angle can vary depending on the LED and the technical features of the display.

In conclusion, it can be stated that loss of brightness under viewing angle start with radiation characteristics of individual LEDs. In most cases radiation characteristics of LEDs show 50% brightness level at about 60°.

 

If the viewing angle of the LED screen becomes lower, the LED screen brightness will be higher, or vice versa. If the contrast ratio between LED screen's brightness and environmental brightness is higher, the led screens’ showing performance will be more colorful. But a too high brightness will consume a lot of energy and create high heat. For that the LED's brightness decreases much faster, and of course, its lifespan will become shorter.

 

For more information, welcome to contact us

 

 

Force sensors are commonly used sensors that are widely used in various industrial automation fields. The main function of force transducer is used to measure the magnitude of the force applied to an object, and convert the measurement result into an electrical signal output for data acquisition and control.

The working principle of the load cell is based on the lever principle and resistance principle. Force sensors are usually composed of elastomers, strain gauges, bridges, signal conditioning circuits and so on.

When the object is subjected to force, the elastomer will produce deformation, and the strain gauge will also be deformed. The strain gauge is a resistive element that converts the deformation into an electrical signal. When the strain gauge deforms, its resistance changes accordingly. A bridge is a component used to detect the change in resistance of a strain gage, and it converts the change in resistance of a strain gage into a voltage signal output.

The signal conditioning circuit is a circuit used to amplify, filter and linearize the voltage signal in order to convert the signal into a usable electrical signal output. Ultimately, the electrical signal output from the force transducer can be transmitted and processed in the form of an analog or digital signal.

 

 

In 2023, QSTECH's latest event adopted XR (Extended Reality) virtual production technology, creating a digitally immersive Metaverse scene. The blend of virtual and physical environments offered an in-depth and visually stunning showcase of products, delivering intricate details far beyond conventional visual presentations.

Indoor LED Display

The integration of digital technology with the real world enables the digitization of various physical entities, seamlessly incorporating them into virtual 3D spaces. This fusion sparks endless imagination and creativity. With the growing demand for XR applications in education, corporate sectors, and live broadcasting, how can XR technology help businesses stand out?

Indoor LED Display

Highlights:

1. Multi-Scene Display, Easy Creativity

XR technology allows for rapid shifts between numerous virtual scenes, delivering highly realistic visual experiences. Unconfined by physical space, this provides limitless creative inspiration.

2. True-to-Life Colors, Effortless Filming

High brightness, high grayscale, wide color gamut, high refresh rate, and wide viewing angles provide a visual feast with precise image reproduction, ideal for photography and filming needs.

●High Brightness and High Grayscale

●Wide Color Gamut

●High Refresh Rate

●Wide Viewing Angles

●HDR

3. Customizable Setup & Creative Construction

Supports multiple angles, such as curved and right-angle splicing, meeting diverse creative construction requirements.

Indoor LED Display

4. Creative Freedom & Cost-Effective

Encourages creativity without the constraints of time, space, and prop production, enhancing quality while reducing costs.

5.Indoor and Outdoor, Easy One-Click Shooting

Filming can be done entirely within a studio without the need to locate indoor or outdoor settings, unaffected by weather or time of day, allowing for round-the-clock production.

Indoor LED Display

Enhancing Realism with the U28 Series Commercial Indoor LED Display

QSTECH's XR virtual shooting solution utilizes the U28 series Indoor LED Display, which enhances screen realism and immersion while enabling the flexible creation of different scenes.

Indoor LED Display

U28 Features:

●Flexible Splicing, More Possibilities: Supports 90° right angle, concave and convex splicing, meeting various creative needs and application scenarios.

●Various Installation Modes & Easy Maintenance: Accommodates hanging and stacking installations to suit different environments. The modular cabinet design supports both front and rear maintenance, saving space and ensuring convenience.

●Branch-Feeding Technology & Energy Saving: The unique power supply design precisely controls the voltage for R/G/B chips, reducing internal energy loss of the LED chips, resulting in high efficiency and energy savings.

 

On October 1st, the M511 Project officially kicked off. This project is the first cluster for digital entertainment experiences in China. The project's highlight, the M511 Future Cinema, simultaneously commenced operations. This new type of cinema, blending technology and art and leading the future trend of movie watching, unveiled its customized 4K tri-fold immersive  cinema LED screen manufactured by QSTECH Led, casting a bright star in the film industry.

The M511 Future Cinema is a comprehensive commercial and artistic complex themed around movies, encompassing smart theaters, digital entertainment scenarios, and supporting commercial spaces. Selected as part of Zhejiang Province’s “600 Billion RMB” industrial investment projects and the “Cultural Zhejiang” top ten construction projects, it aims to merge the core elements of digital, culture, art, and entertainment. It innovates a new urban cultural space focused on "high-quality content production + intelligent scene creation + compound experience economy." Equipped with the most advanced projection equipment, this cinema is dedicated to providing audiences with an exceptional audiovisual experience and a comfortable viewing environment. QSTECH, with its excellent technical prowess and rich experience in the indoor LED display field, always provides high-quality display products and innovative solutions. The cinema LED screen created for the M511 Future Cinema exemplifies QSTECH’s technical expertise in cinema equipment.

QSTECH’s tri-fold immersive LED cinema screen consists of three sections. The central main screen boasts 4K resolution and measures 10.56 meters x 5.4 meters, with the two side screens each measuring 3.84 meters x 5.4 meters. The entire screen totals a width of 18.24 meters and an area of nearly 100 square meters, driven by three Dolby servers for decoding. The design features angled side screens, providing a new viewing experience and a broad visual impact. The picture is delicate and clear, making every detail seem almost touchable. As the movie starts, the grand scenes and vivid characters displayed on the main screen draw audiences into the story, while the seamless integration with the side screens expands the visual range and creates a more immersive and striking visual effect, delivering a visual feast to the audience.

The LED cinema screen has obtained international DCI certification and certification from China's film research and testing institutions. It boasts a DCI-P3 display color gamut, offering rich and realistic colors. Whether showcasing magnificent natural landscapes or fantastical special effects, the colors are presented in their truest form. Additionally, it supports 48-300 nits brightness, ensuring that images retain rich details, color saturation, and contrast in any lighting condition. The tri-fold screen can easily achieve split-screen functionality, bringing more possibilities to film projection. High-frame-rate movie projection and glasses-free 3D effects make viewers feel like they are "breaking" through the screen and "entering" the picture, immersing them in every flowing story of the screen. Whether it’s intense action scenes or heartfelt emotional exchanges, everything is presented to the audience in a more impactful manner.

The sound and lighting systems at the M511 Future Cinema are equally outstanding. It utilizes superior LED computer lights and stage lights, providing a comprehensive and three-dimensional distribution to meet multi-scene lighting needs to the fullest extent. The sound system, based on a 7.1 channel setup, achieves full-range coverage and delicate sound performance through the meticulous arrangement and control of 26 independent channels.

QSTECH’s LED cinema screen also provides robust support for the diversified operations of the cinema. Its multi-screen, high-definition, and high-brightness features allow the cinema to host various events such as star meet-and-greets, film screenings, IP-themed marketing, brand launches, stand-up comedy, concerts, and e-sports events. This creates a diverse application space and a new operational model, assisting the cinema in comprehensive transformation and upgrading.

 

On the morning of October 22, 2024, a team of nine entrepreneurs from the French Normandy region visited the QSTECH global headquarters for a tour and exchange. QSTECH representatives extended a warm welcome to the visiting team.

 

 

The visit was led by the President of the Chamber of Commerce of Coutances, France and the President of the Normandy France-China Friendship Association, underscoring the high importance attached to this event. The team of entrepreneurs first toured the company's LED showroom, where they gained in-depth insights into QSTECH's development history and robust scientific research capabilities. The showroom displayed a variety of LED products and rich application scenarios, such as smart conference scenes, command center scenes, immersive creative scenes, and commercial display scenes, all showcasing QSTECH's remarkable achievements in the LED display field.

 

all-in-one LED display

 

During the tour, QSTECH representatives demonstrated the company's core LED technology – the highly integrated three-in-one board. This innovative technology integrates three components—power supply, receiving card and HUB board—into a single board, leaving only one board inside the cabinet. The modules are connected to the board via a plug-in connection, eliminating the need for wiring and greatly enhancing product stability and reliability, while also making the cabinet lighter and thinner. Technicians performed an on-site hot-swappable replacement of the modules, impressing customers with its convenience and efficiency.

 

all-in-one LED display

 

In the smart conference area, the new third-generation all-in-one LED display quickly captured the customers' attention with its sleek appearance and powerful functions. The exhibition area integrated LED display systems, interactive systems, video processing, and conference systems, creating a simple conference scene solution equipped with omnidirectional microphones and cameras. The display screen operation was as easy as using a home TV. After experiencing wireless screen sharing and touch operations on site, the customers praised QSTECH's outstanding achievements in the display field, marveling at both technical innovation and visual presentation.

 

all-in-one LED display

 

The visit by the French Normandy region entrepreneurs aimed at conducting a comprehensive business inspection of QSTECH. By visiting the site, they gained a deeper understanding of QSTECH’s technology and products in the display field, laying a solid foundation for potential future business cooperation. This visit not only fostered friendly exchanges between Chinese and French enterprises but also holds the potential to become a new starting point for collaboration between both parties.

 

all-in-one LED display

 

Wireless CarPlay is a rapidly developing technology that is emerging in the automotive industry. It is based on Apple's CarPlay platform and integrates the functions of the iPhone into the car's entertainment system through a wireless connection, bringing users a smarter and more convenient driving experience

wireless carplay android auto

 

Features and Functionality

 

1. Wireless Connection

Traditional CarPlay requires pairing the iPhone with the car entertainment system via a USB connection. However, Wireless CarPlay eliminates this limitation, allowing you to simply pair your iPhone with the car system. In this way, you no longer need to deal with messy cables, and the connection process is more convenient and faster.

 

2. Automatic Connection

Once your iPhone and car entertainment system are paired successfully, the connection between them will be automatically established without manual operation every time. This saves you valuable time and energy, allowing you to focus more on driving and enjoying the fun on the road.

 

3. Real-time Navigation

Wireless CarPlay can seamlessly integrate the car system and navigation applications on the iPhone, such as Apple Maps or Google Maps. This means you can get real-time navigation guidance through the in-car display without staring at the phone screen, thus improving driving safety and convenience.

 

4. Music and Media

Wireless CarPlay enables you to easily access your favorite music and media applications, such as Apple Music, Spotify, etc. You can browse and select songs, playlists and podcasts, switch channels, etc. through the in-car display, volume and media control buttons on the vehicle. This brings you a more comfortable and convenient music entertainment experience.

 

5 Voice Control

Wireless CarPlay supports voice control functions such as Siri. You can use voice commands to send text messages, make phone calls, set reminders and schedules, etc. This not only facilitates operation during driving, but also improves driving safety.


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For car drivers,reversing is an indispensable skill in daily driving. However,there are blind spots when reversing, which brings certain troubles and safety risks to the driver.In order to solve this problem,automobile technology takes humanization and safety as the starting point,and introduces barrier-free parking assistance technology-parking assistance system.

Reverse Parking System

 

What is Reverse Parking System?

Reverse Parking Imaging Technology is an important safety feature of modern cars, which provides drivers with a clearer and more reliable view of the rear, greatly reducing the risk of accidents.

 

Features and functions

1. Safe driving

The reversing image technology displays the rear scene of the vehicle to the driver in real time through the camera installed at the rear of the vehicle. This enables drivers to have a more complete understanding of their surroundings, including pedestrians, obstacles, parking Spaces and other vehicles, thereby avoiding collisions and accidents. Whether backing into or out of the parking space, the reversing image makes the operation safer and more reliable.

 

2. Convenient parking

Reversing image technology helps drivers more accurately grasp the distance and position relationship between the vehicle and the parking space. Through the on-board display, the driver can clearly see the auxiliary distance calculation and visual guidance, so that it is easy to reverse into position. This is especially useful for drivers who are not good at backing up or parking their vehicles in narrow parking Spaces.

 

3. Night visibility

Reversing imaging technology usually has a strong low-light environment shooting ability, so that the rear of the vehicle can be clearly visible at night or in dim conditions. By automatically adjusting speed and contrast, reverse imaging technology can provide clearer, brighter images to help drivers better perceive their surroundings, thereby preventing accidents when reversing at night.

 

4. System integration and scalability

Reversing image technology is often seamlessly integrated with the vehicle's multimedia system, and the reversing image can be displayed in real time through the on-board display screen. In addition, some reverse imaging systems can also be combined with other auxiliary functions, such as reverse radar or lane keeping assist system, to provide a full range of safety protection for the driver.

 

 

RoadPassion has developed reverse camera interfaces for BMW, Mercedes, Audi, Lexus, Volvo, Ford, Peugeot, Volkswagen and other models. Welcome to inquire! We are online 24 hours!

Lead-acid Maintenance Free Batteries and Sodium-ion Batteries both can be used in motorcycles, but they have different characteristics and performance. This blog is about a comparison between lead-acid motorcycle batteries and sodium-ion motorcycle batteries.

 

Lead-Acid Motorcycle Battery

  • YTX4L-BS Motorcycle Battery
     
  • YTX5A-BS Motorcycle Battery
     
  • 12N5L-BS Motorcycle Battery
     

 

Chemistry: Lead-acid batteries use a combination of lead plates and an electrolyte solution of sulfuric acid.

 

Energy Density: Lead-acid batteries have a relatively lower energy density compared to other battery chemistries, which means they have a limited capacity to store energy.

 

Weight: Lead-acid batteries are generally heavier compared to other battery types.

 

Lifespan: Lead-acid batteries have a moderate lifespan and may require replacement after a few years of use.

 

Low-Temperature Performance: Lead-acid batteries may experience reduced performance in extremely cold temperatures.

 

Maintenance: Lead-acid batteries require regular maintenance such as checking electrolyte levels and maintaining proper charging habits.

 

Availability and Cost: Lead-acid batteries are widely available and relatively cost-effective compared to some other battery chemistries.

 

Environmental Impact: Lead-acid batteries contain toxic lead and sulfuric acid, which require proper recycling and disposal methods to minimize environmental impact.

 

Sodium-ion Motorcycle Battery

  • Sodium Motorcycle Battery YTX4
     
  • Sodium Motorcycle Battery YTX5
     
  • Sodium Motorcycle Battery YTX7
     

 

Chemistry: Sodium-ion batteries use sodium as the active material in their electrodes, which is in the form of sodium-ion chemistries.

 

Energy Density: Sodium-ion batteries generally offer higher energy density compared to lead-acid batteries, providing a higher capacity to store energy.

 

Weight: The weight of sodium batteries can vary depending on the specific chemistry used but is generally comparable to or lighter than valve regulated sealed lead-acid batteries.

 

Lifespan: Sodium-ion batteries can have a longer lifespan compared to sealed lead-acid batteries, but the specific lifespan may vary depending on the chemistry and usage conditions.

 

Temperature Performance: Sodium-ion batteries can handle a wider range of operating temperatures compared to lead-acid batteries.

 

Maintenance: Sodium batteries may require less maintenance compared to lead-acid batteries, depending on the specific chemistry used.

 

Availability and Cost: Sodium-based batteries may have limited availability and higher costs compared to lead-acid batteries. They may also be less commonly used in motorcycle applications.

 

Environmental Impact: Sodium-based batteries generally do not contain toxic materials like lead and sulfuric acid. However, the environmental impact may depend on the specific chemistry and its recycling/disposal methods.

 

In conclusion, it's important to consider factors such as energy requirements, weight, lifespan, temperature performance, and cost when choosing the appropriate type of battery for a motorcycle. Additionally, consulting with a motorcycle expert or referring to the motorcycle battery manufacturer's recommendations can help make an informed decision.

When it comes to selecting a sla battery for an alarm security system, there are a few important factors to consider. The battery should provide reliable backup power to ensure continuous operation of the security system, even during a power outage. This blog is about some considerations for choosing a vrla battery for an alarm security system:

 

YEEU Battery 12V

 

Battery Type

The most common battery types used in alarm systems are sealed lead-acid batteries (SLA) or valve-regulated lead-acid batteries (VRLA). They are known for their long lifespan, reliability, and ability to provide backup power.

 

Capacity

Determine the power capacity required to support your alarm system during a power outage. Consider factors such as the power consumption of the control panel, sensors, and other components. Choose a battery with sufficient capacity to meet your backup power needs.

 

Voltage

Check the voltage requirements of your alarm system. Most alarm systems operate on either 12 volts or 24 volts. Ensure the battery voltage matches the system's voltage requirements to ensure compatibility.

 

Battery Life and Maintenance

Consider the battery's expected lifespan and maintenance requirements. SLA and VRLA batteries have relatively long lifespans and are generally maintenance-free. However, it's important to monitor the battery's health periodically and replace it as needed to maintain optimal performance.

 

Size and Form Factor

Take into account the physical dimensions and form factor of the battery, ensuring it fits within the designated battery compartment of your alarm system.

 

Safety Features

Look for batteries with built-in safety features such as overcharge protection, short-circuit protection, and thermal protection. These features help prevent potential hazards and ensure safe operation.

 

Reputable Brands

Choose batteries from reputable sla battery manufacturers known for producing high-quality, reliable batteries. This is important to ensure the battery's performance, durability, and compatibility with your alarm system.

 

It is advisable to consult the security system manufacturer's or lead-acid battery manufacturers' documentation or seek guidance from a professional installer to determine the specific battery requirements for your alarm security system. They can provide recommendations based on the system specifications and ensure compatibility and optimal performance.

  • Battery For Alarm Security System
     
  • 12V7Ah Alarm Battery
     
  • Battery For Security System
     
  • 12V18Ah Security Battery

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As we all know that in lead-acid battery industry, when we talk about a model that will be the most reprensentative and the most typical, everyone would very much like to pick battery 12V7Ah. Now you may ask why, this blog will guide you to know why 12V7Ah battery always stands out and the bestseller.

 

  • 12V7Ah Battery
  • Battery 12V 7Ah
     
  • 12V7.2Ah Battery
     

 

Voltage and Capacity: The battery provides a voltage of 12 volts, which is a common voltage requirement for many applications. The 7Ah capacity indicates its ability to deliver a consistent current of 7 amps for a duration of one hour, or an equivalent combination of current and time.

 

Size and Weight: The 12V7Ah 6FM7 battery is typically compact and lightweight, which makes it easy to install in different devices or equipment. Its size and weight allow for greater flexibility in terms of placement and portability.

 

Maintenance-Free: Many 12V7Ah batteries are designed as sealed, maintenance-free batteries. They are often referred to as valve regulated lead-acid batteries, a.k.a VRLA batteries or SLA batteries, which means they require no regular maintenance or electrolyte addition. This makes them convenient and hassle-free to use.

 

Cost-Effective: Compared to other larger capacity batteries, the 12Volt 7Amps battery is relatively affordable, making it a cost-effective choice for various applications. It provides a good balance between capacity and cost, making it a popular option.

 

Availability: The 12V7Ah battery is widely available from various lead-acid battery manufacturers and retailers, ensuring easy availability for replacement or purchase.

 

Versatility/Applications: The 12V7Ah battery is widely used in various applications, including but not limited to: 

 

Motorcycles, power sports vehicles

 

Uninterruptible Power Supplies (UPS): Providing backup power in case of electrical outages. security systems, alarm systems

 

Portable electronic devices like portable power station and portable speakers

 

Emergency Lighting

 

Medical instrument/devices

 

Scooters and kids ride on car

 

See? That's why we YEEU POWER have designed and sold many different specifications of 12V7Ah 6FM7, such as 1.68KG, 1.7KG, 1.8KG, 1.85KG, 1.9KG, 2KG, 2.3KG, etc. And these are not just what we have, we have even more. Most importantly, we have competitive pricing and stable excellent quality. If you're interested in knowing more, you can send us an email: sales@yeeupower.com or text us on Wechat & Whatsapp: +86 152 6078 3685