What is Nematic Liquid Crystal?

All of us know that water (chemical formula is H2O )has 3 states: Solid (ice), Liquid(water) and Gas(Vapor). Liiquid state is isotropic, which means that its properties are uniform in all directions— the result of H2O molecules being in constant random motion. Solid state is crystalline, all the H2O molecules have their fixed position, is anisotropic; optical- and other properties such as thermal and electrical conductivity vary with direction.

The Nematic liquid crystal state is a unique state not included in the above 3 states. It is a state between the crystalline (solid) and isotropic (liquid) states. Even in the state of liquid crystals, there are several types of liquid crystal states, as below.

Nematic Phase

The nematic liquid crystal phase is characterized by molecules maintain the general order of tending to point in the same direction. It has one dimensional order. See Fig.1

Smectic Phase

In smectic phase, molecules show two-dimensional order not present in the nematic. The molecules maintain the general orientationally of nematic, but also tend to align themselves in layers or planes. It is the state between nematic (one-dimensional order) and solid state (three-dimensional order). See Fig.1.

Cholesteric Phase

The cholesteric (or chiral nematic) liquid crystal phase is typically the molecules are directionally oriented and stacked in a helical pattern, with each layer rotated at a slight angle to the ones above and below it. See Fig.1.

In LCD display technology, only nematic liquid crystal has practically use and cholesteric liquid crystal is doped with small amount to help nematic liquid crystal molecules to twist. That is the origin of the term “Twisted Nematic” or TN for Nematic Display in short.  

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Flat panel display demand in the U.K. is expected to account for 17.5% market share of Europe by 2027. The country is anticipated to grow over the coming years as the country is a huge market for flat panel displays.
The market is primarily driven by rising adoption of flat panel displays in a host of consumer electronics devices including televisions, mobile devices, laptops, tablets, and desktop monitors. Rising demand for large-sized displays and rapid technology adoption in the U.K. will contribute to market growth. Moreover, manufacturers are increasingly investing in flat panel display RD, which is an important factor estimated to boost the country market in near future.

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Government organizations are taking steps to modernize the educational system and make it more technologically advanced, as well as investing in the acquisition of materials needed for interactive learning, such as flat panel displays
and tablets.

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Sales of flat panel displays in Japan are estimated to reach US$ 14.5 Bn by 2027. The flat panel display market is rapidly evolving with new technologies and methodologies in Japan
increasing investments in flat panel display manufacturing plants due to low manufacturing costs and mass production facilities are driving the market growth. Manufacturing of flat panel displays is dominant in Japan. Mass production and cost efficiency give this country a competitive edge.

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But you see other lower resolution available, that is because video cards are doing the trick. A video card can display a lower LCD screen resolution than the LCD’s built-in native resolution. The video cards can combine the pixels and turn a higher resolution into lower resolution, or just use part of the full screen. But video cards can’t do the magic to exceed the native resolution.

What resolution is 1024×768? What is 1920×1080 resolution?

You might hear a lot of ways to describe a LCD screen properties. That depends on what characteristic or function you focus on.

• Resolution:  1024×768, 1920×1080 etc. This is very straightforward but difficult to remember.
• Abbreviation: QVGA, VGA, HD, FHD, 1080p, 1440p, 4K etc. It is very straight forward for different applications. For TV buyers, they can simply focus on 4K, 8K etc; for industrial engineers, they most likely focus on VGA, HD, WVGA etc.
• Aspect Ratio:  You might hear 4:3 which is full screen, 16:9 is for widescreen; 21:9 is for ultrawide computer monitors and televisions, as well as cinematic widescreen projectors. Some ultrawide monitors are trying to replace dual monitor.
• Special names by individual companies: Apple Macbook Pro Retina 6K display, Acer Nitro, ASUS Pro Art , ViewSonic Elite, ASUS TUF ,Samsung edge Infinity-O Display etc.

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Flat panel display manufacturers are also focusing on including retina displays and UHD 4K to increase the pixel density of devices.
Liquid Crystal Display (LCD) is gaining popularity as it is energy efficient and also offers better picture quality than other technologies. Flat panel display technology is also gaining popularity in the education system, hence flat panel display manufacturers are also working on developing interactive flat panel displays.

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Sales  Analysis  of  Flat  Panel  Displays  (2013-2021)  Vs  Market  Outlook  (2022  to  2027)

“Increasing  Preference  for  Flat  Panel  Displays  in  Different Applications”

The flat panel display market is estimated to rise at a 4% CAGR from 2022 to 2027 in comparison with a CAGR of 3% registered from 2013 to 2021.

Flat panel displays are used in TVs, monitors, and other display-centric appliances. These are thin panels instead of traditional cathode ray tubes (CRT). These displays are much thinner and lighter, and are more portable than traditional monitors and TVs. They are capable of higher resolution than older models.

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This is where waterproof touchscreens come into play. These innovative touch sensor solutions are specially designed to sustain extreme environmental conditions such as in industrial settings. This touch technology has enabled industries to seamlessly carry out operations, even in odd weather conditions.

Here are four Industries taking advantage of Waterproof Touch Sensor Solutions

Food and Beverage Producers:
There can be no compromise with hygienic and safety guidelines in the food industry. That applies to the processing equipment as well. In the strict environment of this industry, computers with touch interfaces need to comply with sanitation regulations.

Glass armored resistive touch screen sensor called ULTRA, adapts to these rugged conditions perfectly. ULTRA resistive touchscreens are impervious to water, chemicals, solvents, dirt and dust. Cleaning machinery that is equipped with ULTRA is unaffected by temperatures approaching boiling, high-pressure jets, strong industrial disinfectants, and industry-standard detergents.

Some applications integrate projected capacitive (PCAP) touch sensors that are protected against light moisture and chemicals. PCAP touchscreens have a quick response time that allow users to enter data with thin gloves on (wearing gloves is essential for food safety standards). It also supports the multi-touch ability for gestures such as pinch-to-zoom or drag and drop.

These solutions in touchscreens create an entirely different user experience and help workers operate more efficiently.

Smart Agriculture:
When working in agriculture, managers and field workers are exposed to different weather conditions along with their touchscreen devices. They remain subjected to water, chemical and dirt exposure.

The latest armored innovations in industrial touchscreens allow farmers to operate 24/7 without having to wait for favorable weather conditions.
Touchscreen computer systems for on-site crop management must be waterproof to prevent liquid and dust penetration. These innovative devices contribute to enhancing productivity through seamless farm management and crop yield. For example, jobs like creating comprehensive profiles of farms with detailed maps and interactive field plans, precisely recording soil samples, and displaying data on climate, crop health, and field topography get simplified with water-resistant computer screens that enable on-site operation.

Livestock Management:
It is impossible to avoid feed dust, skin dander, and animal waste in Livestock management. Waterproof and rugged touchscreen computers are designed to handle repeated drops and provide protection against dust and water sprays.

Waterproof touch devices have enabled the livestock industry to progress with technological innovations allowing for a more competitive market. They optimize daily tasks and allow producers to connect with customers efficiently and expand on farm-to-home services.

Connected Mines:
Tough, dirty and dangerous working conditions are inevitable in the mining sector. Industrial touchscreen equipment includes numerous features to help facilitate smooth, safe and efficient work operations.

Rugged touchscreens with can resist scratches from grit and sand that come in contact with the screen through incidental touch or gloved hand interaction. Moreover, the touchscreens constructed with a solid IP rating ensure impermeability against corrosive liquids and combustible gases, while protecting electrical hardware inside the equipment that use them.

If you are an OEM, looking for waterproof touch sensors to manufacture touchscreen devices or equipment for any of these applications, contact us by sales@alltouchdisplay.com. We specialize in an innovative range of touchscreen solutions, designed specifically for rugged usage.

#Waterproof Touch Screens, #Waterproof Touchscreens

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