ITA TOUCH - Smart Interactive Solutions Manufacturer
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how computer monitors work - notebook touch screen
Aspect ratio and visual area measurements describe the dimensions of the display: aspect ratio and screen size.
Historically, like most TVs, the aspect ratio of a computer monitor is 4: 3.
This means that the ratio of display width to height is 4 to 3.
For widescreen LCD displays, the aspect ratio is 16: 9 (
Sometimes 16: 10 or 15: 9).
Widescreen LCD displays can be used to watch DVD movies in widescreen format, play games, and display multiple windows side by side.
HD TV (HDTV)
Widescreen aspect ratio is also used.
All types of displays include projected surfaces, often referred to as screens.
The screen size is usually in inches, from one corner to the opposite corner.
This diagonal measurement system is actually due to the fact that early TV makers wanted to make the screen size of their TV sound more impressive.
Interestingly, the screen size measurement of CRT and LCD display is different.
For CRT displays, the screen size is measured diagonally from the outside edge of the monitor housing.
In other words, the external housing is included in the measurement, as shown below.
For an LCD display, the screen size is measured diagonally from the inside of the oblique cut edge.
Measurements do not include the housing as shown in the following figure.
Due to the different measurement methods of CRT and LCD display, 17-
Inch LCD display available with 19-
Inch CRT display.
To represent the size of the CRT more accurately, please find out its visual screen size.
This is the measurement of the CRT display without the housing.
The popular screen sizes are 15, 17, 19 and 21 inch.
The laptop has a smaller screen size, usually between 12 and 17 inch.
With the advancement of desktop and laptop display technology, the screen size is also growing.
For professional applications such as medical imaging or public information display, the size of some LCD displays is 40 inch or larger!
Obviously, the size of the display directly affects the resolution.
The same pixel resolution is clearer on smaller monitors, and more blurry on larger monitors because the same number of pixels are distributed over larger inches.
21-image on
Inch display with a resolution of 800x600 won't look like 15-
800x600 display.
In today's connected world, digital communication is no longer limited to indoor environments. From retail storefronts and transportation hubs to smart cities and hospitality venues, businesses are increasingly relying on outdoor digital displays to engage audiences, deliver real-time information, and strengthen brand visibility.
However, outdoor environments present unique challenges that conventional displays simply cannot withstand. Rain, dust, humidity, extreme temperatures, and direct sunlight can significantly reduce performance and lifespan.
This is where IP66-rated outdoor digital displays make the difference.
Education has undergone a significant transformation over the last decade. Traditional teaching methods that relied solely on blackboards, projectors, and paper materials are rapidly being replaced by interactive, technology-driven learning environments.
Schools, universities, training centers, and educational institutions worldwide are investing in smart classroom solutions that improve engagement, collaboration, and learning outcomes. Among these innovations, the Digital Podium has emerged as one of the most important pieces of classroom technology.
A Digital Podium is no longer simply a lectern for holding notes. It has evolved into a powerful teaching workstation that integrates computing, touch interaction, multimedia control, device management, and classroom collaboration into a single platform.
As hybrid learning, distance education, and smart campus initiatives continue to expand, digital podiums are becoming an essential component of modern educational infrastructure.
In today’s fast-moving business environment, traditional posters and static displays are no longer enough to capture customer attention. Businesses are increasingly turning to indoor digital signage displays to improve communication, promote products, and create more engaging customer experiences.
From retail stores and shopping malls to corporate offices, restaurants, schools, hotels, and healthcare facilities, indoor digital signage has become an essential solution for delivering dynamic content in real time.
At ITATOUCH, we provide high-brightness indoor digital signage displays with customizable hardware and software options, helping partners and businesses create tailored digital communication solutions.
Introduction: Why Traditional Interactive Displays Are No Longer Enough
As smart classrooms and hybrid workplaces continue to evolve, many organizations are facing a common challenge: traditional interactive displays can no longer meet the growing demand for visual clarity, intelligent collaboration, and long-term performance.
In education, teachers need smoother writing experiences, better visibility in bright classrooms, and seamless hybrid teaching tools. In corporate environments, businesses require professional video conferencing, high-quality presentations, and reliable systems for efficient collaboration.
This is where the next generation of premium QLED interactive flat panels makes a significant difference.
With innovations such as QLED Local Dimming technology, 4K UHD display, AI camera systems, optical bonding, and flagship-level processing power, modern interactive flat panels are becoming more than just displays—they are transforming into complete smart collaboration hubs.
In today’s competitive retail environment, attracting customers starts before they even enter your store. A high brightness window display is one of the most effective tools for increasing foot traffic, promoting products, and enhancing brand visibility in shopping malls, retail stores, restaurants, beauty salons, banks, and commercial spaces.
Unlike standard screens that appear dim under strong ambient light, ultra high brightness window displays are specifically designed for storefront applications, delivering vivid visuals and clear advertising content even in direct sunlight.
ITA TOUCH operates a 20,000+ sqm smart manufacturing facility in Shenzhen, equipped with dedicated production lines for interactive displays and digital signage.
We welcome factory visits, online inspections, and OEM audits.