nanotechnology display screens brands

There are endless technical arguments for determining which screens are the best, but if you set price aside, the deciding factor usually comes down to which screen produces the best visuals — the most accurate depiction of the world as we see it with our own eyes.

Leading screen manufacturers like Samsung have turned to nanotechnology that, ironically, can’t even be seen by the naked eye but produces jaw-droppingly rich, vibrant displays. An emerging technology called Quantum Dot enhances flat-panel LED displays, commercial TVs and curved widescreen monitors, revealing many more colors and adding the necessary brightness to take full advantage of technologies like High Dynamic Range (HDR).

Quantum Dots are essentially nanoparticles that manufacturers add to the layers of films, filters, glass and electronics — sometimes called the sandwich — that comprise a Liquid Crystal Display (LCD). When these Quantum Dots are illuminated, they re-emit light of a certain color. Developing the technology for the primary QLED colors (red, blue and green) has been a technological feat, and one Samsung has overcome with its R&D hub Samsung Advanced Institute of Technology (SAIT). The team successfully developed blue QLED technology in 2020.

Because of its investment in R&D, Samsung is, by far, the market leader in Quantum Dots development and display products, with a category it calls Quantum LED (QLED). Other display manufacturers using Quantum Dots technology often include “Q” or “Quantum” in product names to make the distinction from conventional LCDs.

Quantum Dots-enhanced displays compare favorably with super-premium Organic LED displays (OLEDs), but usually at less cost, and with none of the technical issues and limitations that OLED introduces (more on that later). Quantum Dots technology first found its way into the premium TV market, and is now increasingly being used by image-sensitive brands for commercial applications such as digital signage, where the depth and accuracy of color is critically important.

Quantum Dots are usually applied to a sheet of film that sits as a layer in that “sandwich” in front of the LED backlight that’s used to illuminate an LCD. The light passes through the LCD display stack, with the Quantum Dot color filter layer enhancing and enabling the LCD to reveal a wider and more saturated range of colors than would otherwise be possible.

Many consumer and B2B brands place heavy importance on how their products look to the marketplace. Their brands’ colors are not just blue and red — they are very specific blues and reds. Brand owners often have rigorous guidelines that mandate how these colors are reproduced, and in the case of digital displays, Quantum Dots technology provides the level of accuracy they want. Samsung’s QLED displays, for example, enable more than a billion colors.

By one estimate, Quantum Dots increase the color gamut on LCD displays by up to 50 percent. That broad range of colors also enables more saturated colors — the vivid, intense color levels that “pop” on screens and draw viewer attention.

Using Quantum Dots means the range of colors and their accuracy is maintained even at peak brightness, while other display technologies like OLED might wash out colors when scenes require full brightness. The result with QLED is accurate, rich and detailed colors on displays, in any light.

Quantum Dots LCD displays are often compared to OLED flat panel displays, with both billed as premium visual experiences. To a casual observer, they can look very similar, but there are distinct differences.

Both technologies offer a huge range of colors, delivering eye-popping visuals. But while Quantum Dots can reproduce that full range of colors even at peak brightness, when the image on an OLED display becomes too bright, its color capabilities are compromised, and diminishing the available spectrum. Samsung QLEDs have peak brightness levels as high as 4,000 nits, which is brighter than what’s needed for outdoor displays to overpower the glare of direct sunlight.

When flat panel displays first came into the marketplace, much of the marketing story and buyer interest focused on their shape and scale. Then the focus turned to resolution, shifting from 720p to 1080p HD and then to 4K and even 8K.

Size and pixel counts are important, but in many respects the real determining factors for brands and business users is visual quality. The real benefits of Full HD, Ultra HD and beyond come when a display can deliver that volume of detail with an exceptional depth of color, no matter the visuals. Samsung’s QLED technology is supported by AI-powered machine learning, which can scale 4K UHD and Full HD content to 8K resolution without compromising quality.

Quantum Dots may seem like a term that could only excite nerds, but one look at a QLED display will generate admiration even from people who don’t want to know all the technical details.

Explore Samsung’s full lineup ofQLED displays, designed deliver realistic detail and vibrant color to showcase your business in the best light. Looking for more buying advice? You can find everything you need to know about choosing your LED displays for optimal viewing indoors and out in thisfree, comprehensive guide.

Quantum dots might not be visible by the human eye, but they are real. At 2-8 nanometers in diameter, these teeny tiny man-made crystals behave as semiconductors: they emit energy in the form of light when excited by either light or electricity. There are trillions of these tiny crystals inside each quantum dot display.

Quantum dot displays used to cost $300 per square meter to produce. Thanks to our scientists" hard work, we have reduced the cost to less than $15 per square meter. This technology provides an incredible viewing experience at a lower cost, ensuring an incredible consumer value with a high return on investment for product manufacturers.

The most eye-catching display on the show floor at this year"s InfoComm in Orlando, FL was at the Nationwide Video booth, where the well-known provider of gear for the rental & staging sector featured the prototype of a large, high-performing ALR screen from partner CarbonBlack Technology.

The cutting-edge CarbonBlack material, developed in the Netherlands, is optimized for laser projectors. Unlike a traditional screen, it does not actually reflect light in the classic sense. Instead, the nanotechnology integrated on the screen surface works something like the cones in your eyes that take in light and convert it to another form of energy. In this case, the carbon-based screen surface is designed to resonate specifically when it sees laser-generated light, while ambient light is dissipated as kinetic energy. Company officials say that the material is so finely tuned to laser energy that peak brightness would drop off by about 30% if it were to be used with a common lamp projector.

If the concept is a little hard to grasp, the result is undeniable. Two 16 x 9-foot demo screens lit by a 25,000-lumen Christie M-Series RGB laser projector and a 35,000-lumen blue-laser+phosphor Panasonic PT-RQ35, displayed remarkably deep blacks, superb contrast, and excellent color fidelity, with barely a hint of any sparkle or artifacts even from close up (where I spotted only the slightest touch of sparkle in pure whites). This was particularly impressive given the full showfloor lighting and brutal overhead reflector beams that tried their best to wash out the image.

Also impressive are this material"s other attributes. It"s made with a flexible textile substrate that"s extremely lightweight, just 270 grams per square meter. It is both foldable for transport or rollable for use in retracting screens, and easily stretch-wrapped around a truss or frame. Unlike common screen materials in which viewing angle is affected by gain, the CarbonBlack screen offers a full 180-degree viewing angle in all directions. So, all viewers get the same image whether they are off-axis horizontally or looking at the screen from below or above. This characteristic also makes it suitable for use with long-throw, short-throw, and UST projection. Finally, CarbonBlack is said to be sustainable for the benefit of the environment.

CarbonBlack screens were also used by several exhibitors at the 2021 ISE show in Spain. This was taken at the booth for LANG AG, CarbonBlack"s European distributor.

Liam Mahon, the visionary behind CarbonBlack Technology, says the company is focusing first on pushing CarbonBlack screens into large venues and events supported by the rental & staging industry, where they are partnered with Nationwide in North America and Lang AG in Europe. Consumer home theater sales through integrators could come later.

Foldable tablets, electronic charts and bridge displays should become a reality after innovation in nanotechnology screen films. The first foldable smartphones are set to be introduced in Q1 2019, when consumers can test the technology.

Manufacturers have made great strides in developing folding displays for phones. But, an invention was required in conductive materials that would enable touchscreens to function reliably. This is vital if this technology is to be adopted in a maritime environment.

Heraeus Electronic Chemicals has made this technological step with its Clevios HY E material for touchscreens. It unveiled this material in November for folding, or rollable, touchscreen devices that need to be robust, flexible and elastic.

Heraeus head of technical service display Armin Sautter said its Clevios HY E material has the requisite electronic and mechanical properties, combined with a flexible binding agent that allows for a smaller bending radius.

This material has demonstrated the high conductivity needed for large displays, while its bending tests mean it could be used for tablets with multiple folds. Touch-sensitive sensors can then be inserted into the display film so they are undetectable.

Improvements in organic light-emitting diode (OLED) technology has enabled foldable and rolling displays. OLED displays can be mounted on a hyper-elastic material, such as silicone rubber, enabling the screen to be folded 180˚ with a bending radius of 1 mm.

Samsung has been developing folding screen technology for nearly a decade, which culminated in it revealing the Infinity Flex Display earlier this month. Samsung is expected to introduce its Galaxy X smartphone in Q1 or Q2 2019, which would include a screen that can be folded inwards in half.

Chinese technology company Royole has demonstrated the FlexPai smartphone with a display that can be folded outwards. It could be available to purchase in December 2018 and could be scaled up to tablets.

There are questions over the quality of flexible material, the clarity of these displays and their durability. However, these are first-generation products and further development work could improve quality and reduce these concerns.

LG has demonstrated its foldable screen technology for larger displays with an 18-in display that could be rolled up like a newspaper or magazine. This could be adapted into a commercial product.

Foldable display technology is an important development of bridge digitalisation as it has several potential applications. For example, rollable and foldable displays could revolutionise electronic chart and voyage planning processes.

Bridge teams could open electronic charts with optimised routes and navigation warnings superimposed on any surface, like a roadmap or a rolled paper chart. Displays could be curved around bridge workstations or around ship interiors.

Foldable tablets could be used by vessel officers to review operations, or by pilots already familiar with portable navigation units. Captains could have a portable foldable screen to display navigation and automation aids, such as radar, ECDIS, conning and alarm monitoring, around the ship.

Larger displays could be easily stored and transported. This would enable training simulators to be transferred between ships for teaching seamanship and engineering skills, or assessing competencies, such as navigation and ship handling.

3In contrast to the standard flat screen displays used in several electrical gadgets, a flexible display or bendable display is an electronic visual display manufactured by flexible display brands. Several consumer electronics firms have expressed enthusiasm in using this display technologies in e-readers, smart phones, and other electronic goods in recent times. Such screens may be rolled up like a scroll without distorting the image or text. Electronic ink, Gyricon, Organic LCD, and OLED are among the technologies used to create a bendable display.

With the flat panel screen having been extensively used for more than 40 years, many desirable advances in display technology have been made, with the goal of creating lighter, thinner products that are simpler to carry and store. Scientists and engineers think that flexible flat panel display innovation has a large commercial possibility in the future, thanks to recent advancements in flexible display technique.

Flexible displays offered by the flexible display brands are still somewhat costly as contrasted to their rigid equivalents, and visual quality is frequently sacrificed. When the screen is bent at a specific angle, this is extremely evident. However, in comparison to standard displays, flexible screens have a shorter lifespan.

Current models should endure a long time for the majority of users’ demands. However, most flexible display brands still require tackling this issue, particularly given the rising pricing of flexible display devices.

views itself as a supplier of intelligent vertical systems underpinned by premium display technology as an optoelectronics specialist. The company’s vast expertise, innovative skills, and corporate sustainability set it apart and set it out from the competition.

In terms of display as a networking and communication interface, AUO offers a wide range of alternatives in retail, healthcare, transport, and other industries, with the goal of forming eco-systems with partnerships across all sectors and ushering the world into a new smarter lifestyle.

Japan Display Incorporateddevelops, designs, manufactures, and sells displays where a user interface is required to transmit a large amount of data in a short amount of time and to a worldwide market. They design engaging settings that go above and beyond the ordinary, enrich people’s lives, and stir their hearts.

LG Displayis the world’s top inventor of display technologies, comprising TFT-LCD and OLED screens, as well as the worldwide leader in OLED lighting. The firm makes display screens in a variety of dimensions and standards for usage in televisions, laptop computers, desktop workstations, and other purposes, such as tablets and mobile phones. It also manufactures OLED light screens for the automobile and interior decorating industries.

Visionoxis the globe’s renowned provider of sophisticated display systems that are both integrated and interactive. The company’s objective is to lead China’s OLED industry via technical innovation” and its ambition is to “push limits to enrich the experience of eyesight.

Enjoy the greatest visual clarity with wonderful nanotechnology projector screen from Alibaba.com. These nanotechnology projector screen are perfect for viewing movies and pictures and getting the perfect iteration of your display on a bigger screen. These are used by event planners, schools, individual consumers, drive-ins and cinema owners. These nanotechnology projector screen offer high-definition renderings of what is being projected and come with a number of irresistible features.

nanotechnology projector screen offered on Alibaba.com are from the best brands and come with the greatest quality assurances. These nanotechnology projector screen are available in various, sizes, shapes and styles, that are suitable for individuals as well as for commercial purposes. They can come in stand-alone forms, attached on screens, foldable, and available in compact packaging for portability. nanotechnology projector screen provide accurate color representation and do not make the viewing experience grainy. They provide perfect visibility even in the outdoors and in different kinds of external lighting.

nanotechnology projector screen on the site are specifically designed to ensure that the projection looks great from all angles and not just from a central perspective. This ensures that even viewers sitting towards the edges of the screen get the same, amazing experience. nanotechnology projector screen are available in manual as well as motorized variants. These nanotechnology projector screen are sure to impress cinema-goers, corporate offices, and those looking to get the most out of their home projector.

Choose from the brilliant nanotechnology projector screen on offer at Alibaba.com and get the biggest bang for your buck. nanotechnology projector screen suppliers are sure to want in on the wonderful deals and attractive offers. These items are sure to impress with the stunning visual clarity they provide.

Leia Inc. is the leading provider of Lightfield hardware and content services. Lightfield is a new visual medium that lets you experience imagery with complex light effects, such as textures and sparkles, as well as 3D depth and look-around. As a result, Leia’s technology transforms existing displays and converts content into an explosion of beauty and emotion. Our vision is to change the way we connect, create, educate and learn by transcending the device – making memories more present, connections more human and life richer.

Hummingbird Scientific builds products for electron, X-ray and ion microscopy with an emphasis on transmission electron microscopes (TEM). In close collaboration with our customers, we design and manufacture all aspects of these complex systems, from mechanical, electrical, and software design to fabrication and assembly. We provide pioneering solutions for applications in nanotechnology, materials science, and biology.

Peak Nanosystems specializes in the rapid development and deployment of breakthrough nanotechnology systems globally. We help industry-leading companies rewrite the rules and chart a new path forward on a journey powered by nanotechnology. For big names ready to think bigger, nanotechnology is the new frontier. And Peak Nano will guide the way—with sound strategy, and real results. We’re the people who take nanotechnology out of the lab, and make it work for your business.

Brammo Inc. is a leading electric vehicle technology company headquartered in North America. Brammo designs, develops and integrates electric powertrains for leading OEM’s. Powertrain capabilities include Brammo Power™ Battery Modules, Battery Management Systems, Vehicle Control Units, Display Systems, Charging Systems, Drive Controllers and Software, Electric Traction Motors, Transmissions and EV Telematics.

The use of nanotechnology allows electronics to be faster, smaller, and more portable. It increases the power of electronic devices, improves the density of memory chips, and helps reduce power consumption and the size of transistors used in integrated circuits.

Nanotechnology plays a key rolein communication engineering and has a wide array of applications. The use of nanotechnology can affect the telecommunications industry in numerous ways.This paperprovides an insight into some of the latest breakthroughs in nanotechnology that include various devices such as nano transistors, paper batteries, nanorobotics, nanosensors, wireless technology, nano communication, and networks. It also focuses on how the use of this technology is expected to enable the production of smaller, cheaper, and more powerful electronic devices with increasing efficiency.

Nanotechnology is revolutionizing the field of electronics, especially computers, telecommunications, and optics. The main aim in this area is to understand nanoscale rules and mechanisms to implement new ICT (Information and Communication Technology) systems that are more economic, portable, and dependable.

Nano-sized particles of carbon like nanotubes and buckyballs are composed of only carbon and are extraordinarily strong. Bulletproof vests made from carbon nanotubes that weigh the same as a regular t-shirt are a prime example that showcases the strength of nanoparticles. The source of this phenomenal strength is the special characteristics of the bonds between carbon atoms. Nano-sized particles of titanium dioxide and zinc oxide are used in many sunscreens to block UV radiation more effectively.

Nanotechnology may offer new ways of working for electronics. The use of this technology improves display screens on electronic devices while reducing power consumption and the weight and thickness of screens.

Communication systems based on nanotechnology are discovering new materials on the nanometer scale expected to play a vital role in future challenges in the field of communication systems such asDevices of ultra-high-speed for long and short-range communications links

There are three broad technological areas for grouping the display technologies; electronic paper, organic LEDs, Field Emission Displays, and other devices that are made for displaying the still images. A role is played by the nanofabrication techniques and nanomaterials in all of them.

The most promising optoelectronic materials of the next-generation displays are the quantum dots as they have remarkable physical characteristics and are both electroactive (electroluminescent) and photo-active (photoluminescent). There is no doubt they will be at the core of next-generation displays. Lower consumption of power, lower cost of manufacturing, longer lifetime, and purer colors are possessed by the QD-based materials, as compared to the organic luminescent materials that the OLEDs (organic light-emitting diodes) utilize.

Quantum dot display another major benefit is that one can get displays of all kinds of sizes, rollable, flexible, and printable because quantum dot displays can be virtually deposited on any substrate. A passive matrix quantum dot light-emitting diode (QLED) display is displayed by the researchers, for instance, completely integrated with the flexible electronics.

Organic light-emitting diodes (OLEDs) are extremely valuable for various applications in practical life. The phenomenon that light is emitted by some particular organic materials when they are fed with an electric current is what the OLED (organic light-emitting diode) technology is based on. It"s utilized already in small electronic device displays on TV screens, digital cameras, MP3 players, and mobile phones. Making organic large-scale solar cells, windows that can be utilized at night time as light source, and extremely power-saving, bright, and ultra-flat OLED televisions are cheaper and more efficient and effective OLED technologies.

Light is reflected like an ordinary paper by the electronic paper, unlike a conventional flat panel display which illuminates its pixels by utilizing a power-consuming backlight. The electronic paper can indefinitely hold images and texts without drawing any electricity, while later allowing the changing of the image. The prime example of the electronic paper category is electrophoretic displays as they can be made on flexible, thin substrates and have a paper-like appearance. There is already commercial usage of the electrophoretic displays, for instance, mostly the displays are white and black in the Sony Reader or the Kindle. The color displays still have some quality and cost problems. It is shown by the researchers of nanotechnology that enhanced electronic ink fabrication technology is provided by the organic ink nanoparticles, leading to an e-paper with a lower cost of manufacturing, good contrast ratio, and high brightness.

Carbon nanotubes are now being used by researchers for creating a new class of low-cost, high-resolution, large-area flat panel displays. According to some researchers, the biggest challenge to the dominance of an LCD in the panel display arena will be the field emission display (FED) technology, which uses CNT (carbon nanotubes) as an electron emitter. They also believe that FED is the technology for wide-screen, high-definition televisions.

In a sense, FEDs are a hybrid of LCD televisions and CRT televisions. They capitalize on the famous cathode-anode-phosphor technology made into the full-sized CRTs by utilizing this with the LCDs" dot-matrix cellular construction. Cold cathodes individually control the electron emitters, organized in a grid for generating the colored light (whereas the field emission doesn"t depend on the cathode"s heating for boiling off the electrons. The thin panel of the LCDs (liquid crystal displays) today makes the field emission display technology possible, providing a broader field-of-view, giving the CRT (cathode ray tube) displays of today a high image quality, and needing less power as compared to the CRT displays of today.

Nanotechnology is an industrial revolution when it comes to the telecommunications industry. It resulted in various changes in the computing, networking, and telecommunications industries. A major role is played by nanotechnology in communication engineering. It has a broad number of applications. There are various ways in which it can influence the telecommunications industry. Various aspects of communication and information technologies and their characteristics can be revolutionized by nanotechnology.

Nanotechnology has a significant function in telecommunications engineering and it can give effective solutions to control the physical world with computers and for sensing, power-efficient computing, memory improvement programs, and human-machine interaction. One needs an effective way of communication when he wishes to interact with other human environments like public places, offices, and homes. Better sensing and computing resources and an intelligent communication way are provided by electronic devices with a high degree of communication and computation technologies.

Nanotechnology has a huge amount of applications as it makes various electronic devices and new materials. Nanotechnology can make sensors and computer chips that are considerably cheaper, faster, more energy-efficient, and smaller as compared to their current counterparts. A significant role is played by nanotechnology in the telecommunication engineering field, making a great revolution in various aspects dealing with communication features and technologies. A broad amount of applications are possessed by nanotechnology and they have influenced the industry of telecommunications in various ways.

The traditional telecommunication enterprise will eventually be replaced by one based completely upon the use of nanotechnology. Nanotechnology enhances the operation of both cellular as well as core networks, and by providing additional protection and security mechanisms, the better effect on the sensor makes this technology stand out from previous traditional technologies.

In the age of the Internet of Things, all smart devices bolster some degree of wireless communication. From smart home systems to TV receivers, and satellites to smartphones, the demand for wireless communication is immense and it"s only going to grow. The tech industry is intelligently using all available resources to make all wireless computation and communication activities seamless. Once nanotechnology has undergone enough development to allow its mass production for use in mobile devices, we will see another surge in the integration of these devices in our everyday lives.

Nanotechnology is utilized in all scientific areas including engineering, materials science, biology, physics, and chemistry. Nanochemists are now working in product synthesis, polymer chemistry, medical organic chemistry, and other fields. They depend on different and a lot of options to prepare and make nanomaterials with the chemical, photochemical, magnetic, and electronic characteristics. One can interpret and explain their mechanical system within the nanoscale i.e. the infinitesimal space. They are the chips that are utilized in manufacturing all electrical and electronic devices like CPUs, and computers for instance.

Nanotechnology is utilized in various polymeric nanofilms like organic light-emitting diodes (OLEDs), and electronic devices like digital cameras, television, mobile phones, computers, and laptops. Many industrial and technological sectors are being enhanced and revolutionized with the help of nanotechnology. Clear nanoscale films on the windows, camera displays, computer displays, eyeglasses, and other surfaces can turn them electrically conductive, scratch-resistant, antimicrobial, anti fog, resistant towards infrared or ultraviolet light, self-cleaning, anti reflective, and residue- and water-repellent.

The implementation of nanotechnologies in the biological fields is nanobiotechnology. Nanotechnology is viewed by biologists, physicists, and chemists as a branch of their collaborations and subject. One result of nanotechnology"s hybrid field is that it utilizes biological design principles, biological starting materials, or possesses medical or biological applications. Nanotechnology can have a very important role in the development and implementation of various useful tools in the study of life whereas biotechnology deals with the metabolic and other physiological processes of the biological subjects, for instance, microorganisms. Nanomaterials" integration with biology has resulted in developing drug-delivery vehicles, therapy, analytical tools, contrast agents, and diagnostic devices.

Nanotechnology is like a toolkit for the electronics industry, and it gives us tools that allow us to make nanomaterials with special properties modified by ultra-fine particle size and crystalline structure. Nanoelectronics can be described as the application of nanotechnology in electronic devices, especially transistors. Although the term nanotechnology means using technology less than 100 nanometers in size, nanoelectronics can also refer to very small transistors. Nanoelectronics can improve display screens on electronic devices and revolutionize the industry enabling developers to overcome traditional technological constraints that limit product weight, power consumption, and size.

One can find nanomaterials and nanotechnology applications in various cosmetic products like sunscreen, make-up, hair care products, and moisturizers.

Nanotechnology will have potential applications in the functional food area by engineering biological molecules toward the functions that are way different from those that one finds in nature which paves way for a completely new area of development and research. Nanotechnology will give food technologists a completely new toolset for going to new heights.

A significant role will be played by nanotechnology in space missions in the future. Some of the examples are nanosensors with considerably enhanced high-performance materials or highly efficient propulsion systems.

The major consumer of material technologies is the automotive sector. Nanotechnology promises to significantly enhance the existing technologies" performance. There are a lot of applications from the wear-resistant tires, batteries, fuel cells, and paint quality to the futuristic completely self-repairing paint, shape-shifting skin, and switchable colors.

Excellent or remarkable characteristics are possessed by the cement-based materials that undergo nanoengineering. Nanotechnology"s orientation in the cement industry has the light of addressing some of the complications like low ductility, high water absorption, low tensile strength, long curing time, poor crack resistance, CO2 emissions, and various other mechanical performances.

A huge amount of benefits and significant improvement in sporting equipment is offered by nanotechnology, making athletes more agile, comfortable, and safer than ever. Nanotechnology has helped improve the performance of a lot of the sporting equipment, for instance, archery arrows, fly-fishing rods, skis, golf clubs/balls, racing bicycles, hockey sticks, badminton racquets, tennis racquets, baseball bats, etc.

Nanotechnology can be used in various ways in communication engineering and electronics. Sensors, computer chips, actuators, supercapacitors (SC), carbon nanotubes (CNT), and silicon nanowires, are included in the examples. Display technologies are grouped into three broad technological areas and a role is performed by the nanomaterials and nanofabrication methods in all of them. The size of the transistors utilized in the integrated circuits is reduced by nanotechnology for enhancing the capabilities of the electronic components. Sensor networks and wireless sensors have applications in environment monitoring, health, security systems, and logistics.

Advertisements for bigger and better technology gadgets bombard us daily. It seems like there is always a more advanced cell phone or television that you need to get your hands on. Though color TV was made mainstream in the 1960s, the race to advance screen technology for color enhancement is ongoing. In this post (in honor of this year’s “Chemistry Colors our World” theme for National Chemistry Week), I will discuss how nanotechnology is being used to improve color displays in today’s TVs.

Today the most common home TVs contain a liquid crystal display (LCD) with light emitting diodes (LEDs) for backlighting.1 The LCD was a huge improvement in television technology over the cathode ray tube; it helped reduce energy consumption while allowing screen size to increase. It also improved color accuracy, making colors appear more vibrant.2 However, LCD screens still do not have ideal color quality.

A backlit LCD TV is composed of two panels. The back panel is a Back Light Unit and the front panel is a Liquid-Crystal Module (LCM) containing millions of pixels. The function of the Back Light Unit is to continuously illuminate the LCM with white light.2 As you may recall, white light contains many different colors of visible light. This means that the LCM needs filters in order to eliminate unwanted colors – otherwise the screen would just display a blank white block all the time.

To accomplish this filtering, each pixel in the LCM is separated into three sub-pixels with red, green, and blue filters (Figure 2). These sub-pixels control how much of each color is filtered, and the light that passes through the sub-pixels is combined to create the overall pixel color. Narrow filters (filters that allow only a small range of light wavelengths to pass) create strong colors because they eliminate all colors except the most vibrant reds, greens and blues. However, since narrow filters remove a lot of light that would otherwise be displayed, they cause the picture on the screen to dim. Broader filters can increase the amount of light displayed, but the resulting colors will be muted since more unwanted colors are allowed to pass through. Regardless of the filter used, there will always be extra light that bleeds through, meaning black (the absence of light) will never be a true black. Due to these color constraints, only 35% of the specific color variations our eyes can see are shown on an LCD TV!2

To improve color quality on LCD screens, quantum dots (QD) are being incorporated into the LCD structure. But what are QD, and how do they make our TV watching experience better?

Desroches L-B. & Ganeshalingam M. The dynamics of incremental costs of efficient television display technologies. Technological Forecasting and Social Change, 2015, 90, 562-574. doi:10.1016/j.techfore.2014.02.016

Chen J., Hardev V., & Yurek J. Quantum Dot Displays: Giving LCDs a Competitive Edge Through Color. Nanotechnology Law & Business, 2014,11, 4-13. sid: 0362-0972/1/2013-0

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