When choosing a teaching all-in-one machine for the classroom, size is crucial. If it's too small, the students at the back won't be able to see clearly; if it's too large, not only will it waste the budget, but the students at the front won't have a comfortable viewing experience either. In fact, choosing the size is not complicated. Just follow these three core points. 

I. Observe the Scenarios: Different Spaces, Different Choices 

Small spaces: such as kindergartens and group counseling rooms, it is recommended to choose a size of 55-65 inches. The appropriate size is suitable for children's height, providing a better interactive experience. 

Standard Classroom: This is the most common requirement, covering regular classrooms in primary and secondary schools, universities, and training rooms. A size of 75-86 inches is considered the ideal dimension, ensuring that each student can see clearly at a viewing distance of 4-7 meters. 

Large spaces: such as lecture halls and auditoriums, require a screen size of 90 inches or larger to ensure clear viewing from a distance and to guarantee that the content is easily visible. 

II. Determine Distance: A Simple Formula for Easy Judgment 

A simple rule is: "The distance from the farthest student's seat should be between 3 to 6 times the height of the screen." 

For instance, if an 86-inch all-in-one monitor is about 1.1 meters in height, then the maximum viewing distance should not exceed 6.6 meters. 

You can measure the length of the classroom in advance and use this formula to quickly calculate the range of the required screen size. 

III. Observe the Crowd: Age Determines Experience 

Young students: Young children and primary school students have limited height, and overly large screens can actually cause eye strain from looking up. A screen size of 65-75 inches is usually a more comfortable and safe option. 

Senior students and adults: They can interact more effectively with large screens. Screens of 86 inches and above provide more space for writing and presentation, suitable for efficient classrooms and collaboration. 

Based on the size of your classroom, the maximum viewing distance and the age of your students, you can make a reasonable choice. 

Still unsure? What you need is not a single product, but a complete professional solution. 

DreamSource offers free selection guidance and solution design, helping you create the most suitable smart classroom.

With a gentle wave of his hand, the teacher on the podium allowed the electronic chalk to smoothly write on the smooth screen, without having to endure the dust invasion. 

The students sitting at the desks could simply tap their fingertips and the solution process would be simultaneously shared on the screens of the entire class, instantly triggering a burst of intellectual interaction. 

Students from afar can also participate in the class in real time through the screen, transcending spatial boundaries to acquire knowledge. 

This is precisely the teaching model brought about by the intelligent blackboard! It is quietly reshaping our learning environment, giving teaching and learning an unprecedented vitality and possibility. 

I. Core of Wisdom: Beyond "The Board", It Is Also the Hub of Teaching 

The smart blackboard is not merely an electronic upgrade of the traditional blackboard. It is driven by cutting-edge technology and deeply integrated into the teaching process, becoming the intelligent core of the classroom: 

2.Ultra-clear large screen, visual feast: With display effects comparable to high-end TVs, featuring 4K/8K resolution, vibrant colors and sharp details. Whether it's charts, experimental videos or tiny text, everything is clearly presented, providing comprehensive protection for teachers and students' eyesight. 

3. Multi-screen interaction, seamless collaboration: Teachers can broadcast their screens to all students' tablets or devices with a single click. Students' works can also be displayed on the screen in real time. The results of group discussions are instantly gathered, and the sparks of thinking collide and are shared instantly, truly making the classroom come alive. 

4. Massive resources, ready to use at any time: Deeply integrated with authoritative educational cloud platforms, millions of courseware, question banks, 3D models, experimental videos and other resources can be accessed with just a click. Dynamic terrain evolution in geography classes, molecular structure disassembly in chemistry classes, and immersive reenactment of historical scenes are all within reach. 

5. Classroom Recording, Reviewing Old Knowledge to Acquire New Insights: Automatically record the entire teaching process (including blackboard writing, audio, and video) with just one click, and automatically generate a resource library. Students can review and review difficult points at any time, and teachers can review the teaching effectiveness and provide valuable materials for teaching research. 

II. Wisdom Empowerment: Transforming Teaching and Learning Completely 

Reducing teachers' burden while enhancing efficiency: Say goodbye to heavy blackboard writing, and say goodbye to dust injuries. Quick access to resources, greatly enriched classroom interaction forms, precise data analysis to support personalized teaching decisions, allowing teachers to focus on teaching design and guidance. 

Student immersion participation: Multi-dimensional stimulation through vision, hearing, and touch, naturally enhancing learning interest. Real-time interaction and feedback mechanisms enhance the sense of participation and achievement, and collaborative exploration skills are cultivated subconsciously. 

Classroom efficiency has soared: Information transmission is more intuitive and efficient. Dynamic demonstrations replace abstract explanations, and complex concepts can be easily grasped. Instant assessment and feedback enable more rapid and accurate adjustments in teaching. 

Connecting Unbounded Classrooms: Easily facilitate remote live teaching, cross-campus / cross-national interactive classrooms, allowing for the maximum sharing of high-quality educational resources and promoting educational equity. 

III. Green Safety: Thoughtful Protection Behind the Intelligence 

Healthy Zero Dust: Completely solve the problem of traditional chalk dust pollution, creating a healthy and clean teaching environment. (Data support: After using the smart blackboard, the PM2.5 and PM10 concentrations in the classroom have significantly decreased, effectively reducing the risk of respiratory diseases for teachers and students.) More Professional Eye Protection: Utilizes low blue light and no flicker technology, and has passed multiple authoritative eye protection certifications. It is not prone to fatigue even after long-term use. Stronger and Safer: Anti-glare and explosion-proof design, the surface strength far exceeds that of ordinary glass, protecting the safety of teachers and students. 

From the dust of chalk to the radiance that blooms on fingertips, the Smart Blackboard is redefining the boundaries of the classroom. It is not merely a tool; it is also the spark that ignites students' curiosity, a vast stage for teachers to showcase their educational artistry, and a crucial force driving education towards intelligence, fairness, and high quality. 

The wave of intelligent education, the boundless future of intelligent blackboard education. Let knowledge flow through your fingertips, let thoughts collide in the clouds, and make every classroom a fertile ground for inspiring wisdom and nurturing dreams! 

Smart classrooms are within reach.

Digital signage is a professional multimedia audio-visual system. It uses terminal display devices in public spaces to present public information, advertising, and other content in a dynamic, customizable, and interactive manner. It is often referred to as the "fifth medium" following newspapers, radio, television, and the Internet. 

The characteristic of digital signage which is designed to play advertising information to specific people in specific physical locations and during specific time periods, has enabled it to achieve advertising effects. Advertisers can utilize this medium of digital signage to convey brand image, promotional activities, new product recommendations, etc. to the target audience, thereby expanding brand influence and promoting sales. In 2023, the advertising market size in China was 1,412.18 billion yuan. 

On the one hand, digital display technology is constantly evolving and improving. Technologies such as LCD displays and LED displays have become increasingly mature, resulting in better display effects for digital signage. They can present high-definition and colorful images, capturing the attention of viewers. 

On the other hand, the consumer market is recovering continuously, and the demand for advertising placements is increasing. Digital signage, as an efficient advertising display medium, can present advertising content in various rich forms and is favored by advertisers. The global market size of digital signage is approximately 38.2 billion yuan in 2024. 

In the future, the demand for digital signage in China will become diversified. The retail industry will maintain a concentrated growth pattern, with an increase in the number of new shopping centers, expansion of shopping centers, jewelry and gold stores, and display stores of new energy vehicle manufacturers. The demand for digital signage will continue to rise. Moreover, new products such as subway screen for announcement and government service hall announcement screens will gradually penetrate transportation and public service scenarios. In the elevator media sector, a single dominant player in the niche market will dominate. If it acquires high-quality positions and customer resources from the trendy sector, the curve of scale effect will rise again. The demand for expansion of domestic positions will decrease, and the focus will shift to overseas. This may lead to the outward expansion of the entire industry chain. The digital signage industry is expected to continue to expand its overseas market. The overseas digital signage market will have a larger scale, higher concentration, standardized products and a larger profit margin, and will increasingly attract domestic manufacturers to go global.

How is the future outlook for the digital signage market?

Digital Signage is a technology that uses electronic display devices (such as LED screens, LCD displays, etc.) to display advertisements, information, videos, or interactive content. Unlike traditional paper advertisements or signs digital signage can update content in real time and supports more vivid images and video presentations. 

Common application scenarios:

Shopping malls: Promotional advertisements, brand displays, product recommendations

Transport hubs: Flight information, traffic guidance

Catering industry: Menu displays, dynamic price adjustments

Conference centers: Schedule arrangements, exhibition information 

According to market research, it is expected that the global digital signage market will continue to grow in the coming years, with an average annual growth rate of over 10%. Among them, LED displays and interactive touch screens will become the mainstream products, with huge market potential. 

How to enter the digital signage export industry?

Product quality and innovation ⚙

The competition in the digital signage industry is not only reflected in price, but also in technological innovation and product quality. For instance, display effect, durability, interactivity, etc. all need to be at the industry-leading level. Having unique technological advantages and innovative designs is necessary to stand out in the international market. 

Expanding the Market for Cross-border E-commerce Platforms 🌐

Summary: Seize the opportunity, a promising future awaits

As a new emerging technology industry, the market demand for digital signage is growing rapidly. Especially with the advancement of global intelligence and informatization, digital signage will increasingly appear in various aspects of our lives. From advertising and publicity to public information release, from interactive experiences to smart city construction, the application scenarios of digital signage are very extensive.