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From fingertip touch to high definition picture presentation, touch screen and LCD screen as the key components of smart devices, how to work together to revolutionize interaction and visual experience? This article deeply analyzes its working principle, application scenarios, and future development in the face of new technical challenges, and takes you to unlock the technical secrets behind smart devices.

In the digital era, advertising machines, serving as crucial vehicles for information dissemination and display, are being deeply integrated into diverse industries. Their versatile functions and adaptable application formats are revolutionizing the information - interaction models within these industries. Here, we present the application scenarios of advertising machines in different sectors, backed by specific data.

This news article focuses on an innovative technological setup integrating a computer, projector, and interactive whiteboard. It details how the system functions: the computer sends digital content to the projector via HDMI, which then projects it onto the whiteboard. The whiteboard, using infrared or electromagnetic induction, detects touch and relays contact coordinates to the computer through USB. This two - way communication enriches interactions in classrooms and business scenarios. Educators praise increased student engagement, and industry experts foresee widespread adoption, with potential for further advancements to enhance interactivity.

On April 14, 2025, representatives of important clients from India arrived at the factory of CUHUB. Their purpose of this visit was to gain an in - depth understanding of the company's all - in - one computer products and seek procurement cooperation opportunities. Led by the relevant company leaders, the representatives entered the production workshop. They carefully inspected every production process, from the parts processing area to the complete machine assembly line, and frequently stopped to ask questions. After the visit, both sides held in - depth discussions in the conference room regarding the performance, price, after - sales service, etc. of the all - in - one computers, looking forward to reaching a cooperation consensus and exploring the Indian market.

Smart boards are large touchscreen displays that combine the simplicity of a whiteboard with the power of a computer, offering an intuitive and engaging platform for teaching and learning. Teachers can write, draw, annotate, and even connect their devices to share information directly on the board.

Infrared touch screens, while useful in certain applications, have several notable disadvantages:Environmental Sensitivity: