anti glare coating lcd monitors quotation

Resistive touch screens were launched about 20 years ago with a lower cost-benefit and a pressure-sensitive surface to react with various objects such as your finger, glove, pencil or specialist tools. Resistive touch technology remains the popular choice for factory automation. Some drawbacks for resistive touch technology include the need for calibration from time to time, a driver is needed for new installations, and the surface of the resistive touch display has a limited lifetime. The resistive touch technology also suffers from reduced light transmittance in comparison with PCAP, therefore, decreases the sought-after high brightness of the underlying TFT-LCD.

Assured Systems provide 3 different surface coatings for PCAP touch screen computers; Anti-Reflection, Anti-Glare and Anti-Fingerprint. These surface coatings can be utilised in both indoor and outdoor environments by enhancing the optical performance of displays.

A chemical-based surface treatment, otherwise known as a chemical AG process, is applied directly to the glass display surface to form micro asperities and give the glass an anti-glare effect under the likes of sunlight. It does not generate any of the minute flaws or micro-cracks that are characteristic of mechanical AG processes and therefore maintains the high surface strength of the glass.

The other way for AG treatment is manufactured by a controlled acid etching process yielding uniform diffused surfaces for anti-glare. Varying levels of diffusion specified as gloss yield different levels of reduced glare. A lower gloss reading denotes a more diffuse panel. The haze ratio of AG glass used on OGS touch screen products cannot be too high, because high levels of haze would affect LCM transmittance. See below figure to have more understanding of specification categories for anti-glare glass.

An Anti-Reflection (AR) coating is a type of optical coating applied to the surface and other optical elements to reduce reflection by the vacuum evaporation process. In typical imaging systems, this improved efficiency since less light is lost due to reflection. In a complex system such as telescopes and microscopes, the reduction in reflections also improves the contrast of the image by elimination of stray light.

AR produced destructive interference in the beams reflected from the interfaces and constructive interference in the corresponding transmitted beams, which increases the transmittance of glass or transparent substrates, the transmittance of glass is approximately 91%, with single-sided coating the transmittance can increase to 94~95%, if with double-sided coating it can increase transmittance up to 98~99%.

The Anti-Fingerprint coating constructions of the advantages of the preferred embodiments like the user are prevented from being imprinted on the surface, and it remains clean and aesthetically pleasing. AFP coating makes it possible to wipe up smudge on the surface very quickly and also has a tremendous hydrophobic performance and protects AR layers and reduced friction and low surface energy and improves scratch resistance. The hydrophobic performance is evaluated each lot by measuring the contact angle. The AF effect is realized by applying a nano-coating to reduce the optical contrast of fingerprints.

The AFP effect means that fingerprint on the surface cannot be seen at all by the naked eye, or only very slightly. Although the fingerprint is on the surface, it is essentially “invisible.” The colour to be coated under visible and infrared light is transparent. The coating is with characteristics like low coefficient of friction, contact angle >100 degrees. It utilizes a vacuum coating process which is also thinner and more even than spread coating.

Anti-Vandal display protective films work by protecting the glass substrate from damage and can be easily removed and replaced by a new film. This provides a quick on a cost-effective solution for those required to maintain public and private spaces from the damage and visual distortion caused by graffiti and reckless vandalism.

Anti-UV protective films are applied for outdoor Panel PCs which are operating in both outdoor and semi-outdoor applications. Even though that is indirect sunlight for the touch surface, there are still ultraviolet light that can damage the structure of touch and cause OCA film yellowing and aging issues. Anti-UV films also reject up to 97% of infrared light coming from sunlight and insulation up to 60% of the heat keep touch surface and system away from heat issues.

I think I finally managed to find the reason this cursed LCD monitor is giving me headaches. For some reason, in thier infinite wisdom, Sony used a highly reflective screen in the LCD. I noticed the difference when both the sceen and my laptop screen were off. In the laptop screen, I only saw a very fuzzy, faint reflection of myself, whereas my LCD had a crsytal clear reflection of me. I quickly checked the other laptops I had used headache free, and all had the "dull" non reflective surface.

I think what"s happening is my eyes are confused on what to focus on, the screen, or the reflection in the screen, leading to massive eyestrain headaches. Also, I noticed the effect is worse when the brightness is turned down, which would make sense, because the darker the screen, the more reflection, the stronger headaches.

So I go looking for anti glare/anti reflection screen/filters for LCD"s.

And of course, since nothing in the entire universe can just for once actually go easy for me, everyone on the planet makes 17" screens for a reasonable price. For 19"s? No way. They"re either like $100+, or are made for CRT"s.


So, is there any type of plastic/tinting one could apply to an LCD screen that would achieve the same effect as an anti glare screen, in rreducing the reflectivity of the screen?

Be careful when reading about anti-glare versus anti-reflection since these terms are often used interchangeably but are actually very different. All an anti-glare coating does (besides protecting the polarizer) is diffuse the light reflected off it and passing through it. It does not reduce the amount of light reflected.

An anti-reflection coating does reduce the amount of light reflected, but without diffusing it. The ideal display surface would be a perfect anti-reflection coating, or one that reflects no light off the surface. A monitor using this coating would never need anti-glare because there is no reflected light that needs diffusing.

A glossy display should reflect about 8% of the light shining on it when viewed straight on because of the glass used. Using the same coatings available for camera lenses it should not be difficult to get this down to 1-2%, but it gets expensive because of the large surface area of monitors. In contrast, an anti-glare coating is just rough plastic and very cheap to add. Hopefully someone will soon find a way to add anti-reflection to displays without being prohibitively expensive, but based on how often other important aspects are ignored I am not holding by breath.

On a more personal note, I used to think a glossy display would drive me nuts. However, after buying and using one of the Korean Catleap monitors there is no way I"d ever go back to using one with anti-glare coating (laptops excepted). It really is that much clearer than the medium anti-glare of the PVA monitor I was using, and I can read much smaller text easily. After seeing the heavier anti-glare on other 27-inch IPS displays I"ll take the reflections.

Glare and reflection are terms often confused for each other. So how do you decide whether you need an anti-glare or anti-reflective solution to your viewing problem? Let us try to help.

Both anti-glare and anti-reflective treatments represent ways to improve or optimize readability of a displayed image or set of characters. Readability is essential for the optimum performance of any display, and you want the visual information to beread clearly, quickly and comfortably (minimal eyestrain). Both anti-glare and anti-reflective methods improve readability, but attack the problem using different mechanisms to address the different causes of reduced readability.

To deal with the external sources of reflection, Anti-Glare uses diffusion mechanisms to breakup the reflected light off the surface. Diffusion works byreducing the coherence of the reflected image, making these unwanted images unfocused to the eye, thereby reducing their interference with viewing of the intended image contained in the display.

The principle drawback to using diffuse mechanisms to address external reflection (glare) has been that they sacrifice clarity and resolution of the intended image. Mechanically or chemically textured surfaces – or anti-glare coatings using suspended particules – reduce the glare, but often at a significant trade off in image resolution and readability. While economical to apply, the trade-off in image resolution represented by these anti-glare treatments often makes them an inferior solution to your viewing requirements.

TSP’s DURAVUE® 2000 High Resolution Anti-Glare Hardcoat is different, as it is unique in its ability to diffuse reflected light with minimal sacrifice to the clarity and resolution of the displayed image. Our proprietary coating process yields an anti-glare surface with superior image resolution at any given level of glare reduction versus other diffusion anti-glare offerings, while remainingmuch more economical than the expensive AR type solutions listed below.

To combat this problem,thin multi-layerAnti-Reflective optical films or coatings like TSP’s DURAVUE® 7000 are applied to “bend” the light through each medium, providing broadband reduction of reflection across the visible light spectrum, increasing the total light transmission to as high as 99.5%.DURAVUE® 7000 is as effective as these other AR films in reducing reflection, but with the added feature of being durable to withstand repeated cleanings without the scratching and smudging common to most AR surface treatments.

An antireflective, antiglare or anti-reflection (AR)coating is a type of optical coating applied to the surface of lenses, other optical elements, and photovoltaic cells to reduce reflection. In typical imaging systems, this improves the efficiency since less light is lost due to reflection. In complex systems such as cameras, binoculars, telescopes, and microscopes the reduction in reflections also improves the contrast of the image by elimination of stray light. This is especially important in planetary astronomy. In other applications, the primary benefit is the elimination of the reflection itself, such as a coating on eyeglass lenses that makes the eyes of the wearer more visible to others, or a coating to reduce the glint from a covert viewer"s binoculars or telescopic sight.

Many coatings consist of transparent thin film structures with alternating layers of contrasting refractive index. Layer thicknesses are chosen to produce destructive interference in the beams reflected from the interfaces, and constructive interference in the corresponding transmitted beams. This makes the structure"s performance change with wavelength and incident angle, so that color effects often appear at oblique angles. A wavelength range must be specified when designing or ordering such coatings, but good performance can often be achieved for a relatively wide range of frequencies: usually a choice of IR, visible, or UV is offered.

Anti-reflective coatings are used in a wide variety of applications where light passes through an optical surface, and low loss or low reflection is desired. Examples include anti-glare coatings on corrective lenses and camera lens elements, and antireflective coatings on solar cells.

Opticians may recommend "anti-reflection lenses" because the decreased reflection enhances the cosmetic appearance of the lenses. Such lenses are often said to reduce glare, but the reduction is very slight.contrast and visual acuity.

Antireflective ophthalmic lenses should not be confused with polarized lenses, which are found only in sunglasses and decrease (by absorption) the visible glare of sun reflected off surfaces such as sand, water, and roads. The term "antireflective" relates to the reflection from the surface of the lens itself, not the origin of the light that reaches the lens.

Many anti-reflection lenses include an additional coating that repels water and grease, making them easier to keep clean. Anti-reflection coatings are particularly suited to high-index lenses, as these reflect more light without the coating than a lower-index lens (a consequence of the Fresnel equations). It is also generally easier and cheaper to coat high index lenses.

Antireflective coatings (ARC) are often used in microelectronic photolithography to help reduce image distortions associated with reflections off the surface of the substrate. Different types of antireflective coatings are applied either before (Bottom ARC, or BARC) or after the photoresist, and help reduce standing waves, thin-film interference, and specular reflections.

An unmetallised heterojunction solar cell precursor. The blue colour arises from the dual-purpose indium tin oxide anti-reflective coating, which also enhances emitter conduction.

Solar cells are often coated with an anti-reflective coating. Materials that have been used include magnesium fluoride, silicon nitride, silicon dioxide, titanium dioxide, and aluminum oxide.

The simplest form of anti-reflective coating was discovered by Lord Rayleigh in 1886. The optical glass available at the time tended to develop a tarnish on its surface with age, due to chemical reactions with the environment. Rayleigh tested some old, slightly tarnished pieces of glass, and found to his surprise that they transmitted more light than new, clean pieces. The tarnish replaces the air-glass interface with two interfaces: an air-tarnish interface and a tarnish-glass interface. Because the tarnish has a refractive index between those of glass and air, each of these interfaces exhibits less reflection than the air-glass interface did. In fact, the total of the two reflections is less than that of the "naked" air-glass interface, as can be calculated from the Fresnel equations.

The simplest interference anti-reflective coating consists of a single thin layer of transparent material with refractive index equal to the square root of the substrate"s refractive index. In air, such a coating theoretically gives zero reflectance for light with wavelength (in the coating) equal to four times the coating"s thickness. Reflectance is also decreased for wavelengths in a broad band around the center. A layer of thickness equal to a quarter of some design wavelength is called a "quarter-wave layer".

The most common type of optical glass is crown glass, which has an index of refraction of about 1.52. An optimal single-layer coating would have to be made of a material with an index of about 1.23. There are no solid materials with such a low refractive index. The closest materials with good physical properties for a coating are magnesium fluoride, MgF2 (with an index of 1.38), and fluoropolymers, which can have indices as low as 1.30, but are more difficult to apply.2 on a crown glass surface gives a reflectance of about 1%, compared to 4% for bare glass. MgF2 coatings perform much better on higher-index glasses, especially those with index of refraction close to 1.9. MgF2 coatings are commonly used because they are cheap and durable. When the coatings are designed for a wavelength in the middle of the visible band, they give reasonably good anti-reflection over the entire band.

By using alternating layers of a low-index material like silica and a higher-index material, it is possible to obtain reflectivities as low as 0.1% at a single wavelength. Coatings that give very low reflectivity over a broad band of frequencies can also be made, although these are complex and relatively expensive. Optical coatings can also be made with special characteristics, such as near-zero reflectance at multiple wavelengths, or optimal performance at angles of incidence other than 0°.

An additional category of anti-reflection coatings is the so-called "absorbing ARC". These coatings are useful in situations where high transmission through a surface is unimportant or undesirable, but low reflectivity is required. They can produce very low reflectance with few layers, and can often be produced more cheaply, or at greater scale, than standard non-absorbing AR coatings. (See, for example, US Patent 5,091,244.) Absorbing ARCs often make use of unusual optical properties exhibited in compound thin films produced by sputter deposition. For example, titanium nitride and niobium nitride are used in absorbing ARCs. These can be useful in applications requiring contrast enhancement or as a replacement for tinted glass (for example, in a CRT display).

Moths" eyes have an unusual property: their surfaces are covered with a natural nanostructured film, which eliminates reflections. This allows the moth to see well in the dark, without reflections to give its location away to predators.refractive index gradient between the air and the medium, which decreases reflection by effectively removing the air-lens interface. Practical anti-reflective films have been made by humans using this effect;biomimicry. Canon uses the moth-eye technique in their Sub-Wavelength structure Coating, which significantly reduces lens flare.

There are two separate causes of optical effects due to coatings, often called thick-film and thin-film effects. Thick-film effects arise because of the difference in the index of refraction between the layers above and below the coating (or film); in the simplest case, these three layers are the air, the coating, and the glass. Thick-film coatings do not depend on how thick the coating is, so long as the coating is much thicker than a wavelength of light. Thin-film effects arise when the thickness of the coating is approximately the same as a quarter or a half a wavelength of light. In this case, the reflections of a steady source of light can be made to add destructively and hence reduce reflections by a separate mechanism. In addition to depending very much on the thickness of the film and the wavelength of light, thin-film coatings depend on the angle at which the light strikes the coated surface.

The reflection loss of each interface is approximately 1.0% (with a combined loss of 2.0%), and an overall transmission T1ST01 of approximately 98%. Therefore, an intermediate coating between the air and glass can halve the reflection loss.

The use of an intermediate layer to form an anti-reflection coating can be thought of as analogous to the technique of impedance matching of electrical signals. (A similar method is used in fibre optic research, where an index-matching oil is sometimes used to temporarily defeat total internal reflection so that light may be coupled into or out of a fiber.) Further reduced reflection could in theory be made by extending the process to several layers of material, gradually blending the refractive index of each layer between the index of the air and the index of the substrate.

Practical anti-reflection coatings, however, rely on an intermediate layer not only for its direct reduction of reflection coefficient, but also use the interference effect of a thin layer. Assume the layer"s thickness is controlled precisely, such that it is exactly one quarter of the wavelength of light in the layer (λ/4 = λ0/(4n1), where λ0 is the vacuum wavelength). The layer is then called a quarter-wave coating. For this type of coating a normally incident beam I, when reflected from the second interface, will travel exactly half its own wavelength further than the beam reflected from the first surface, leading to destructive interference. This is also true for thicker coating layers (3λ/4, 5λ/4, etc.), however the anti-reflective performance is worse in this case due to the stronger dependence of the reflectance on wavelength and the angle of incidence.

Real coatings do not reach perfect performance, though they are capable of reducing a surface reflection coefficient to less than 0.1%. Also, the layer will have the ideal thickness for only one distinct wavelength of light. Other difficulties include finding suitable materials for use on ordinary glass, since few useful substances have the required refractive index (n ≈ 1.23) that will make both reflected rays exactly equal in intensity. Magnesium fluoride (MgF2) is often used, since this is hard-wearing and can be easily applied to substrates using physical vapor deposition, even though its index is higher than desirable (n = 1.38).

Further reduction is possible by using multiple coating layers, designed such that reflections from the surfaces undergo maximal destructive interference. One way to do this is to add a second quarter-wave thick higher-index layer between the low-index layer and the substrate. The reflection from all three interfaces produces destructive interference and anti-reflection. Other techniques use varying thicknesses of the coatings. By using two or more layers, each of a material chosen to give the best possible match of the desired refractive index and dispersion, broadband anti-reflection coatings covering the visible range (400–700 nm) with maximal reflectivity of less than 0.5% are commonly achievable.

The exact nature of the coating determines the appearance of the coated optic; common AR coatings on eyeglasses and photographic lenses often look somewhat bluish (since they reflect slightly more blue light than other visible wavelengths), though green and pink-tinged coatings are also used.

If the coated optic is used at non-normal incidence (that is, with light rays not perpendicular to the surface), the anti-reflection capabilities are degraded somewhat. This occurs because the phase accumulated in the layer relative to the phase of the light immediately reflected decreases as the angle increases from normal. This is counterintuitive, since the ray experiences a greater total phase shift in the layer than for normal incidence. This paradox is resolved by noting that the ray will exit the layer spatially offset from where it entered and will interfere with reflections from incoming rays that had to travel further (thus accumulating more phase of their own) to arrive at the interface. The net effect is that the relative phase is actually reduced, shifting the coating, such that the anti-reflection band of the coating tends to move to shorter wavelengths as the optic is tilted. Non-normal incidence angles also usually cause the reflection to be polarization-dependent.

Reflection can be reduced by texturing the surface with 3D pyramids or 2D grooves (gratings). These kind of textured coating can be created using for example the Langmuir-Blodgett method.

Antireflective properties of textured surfaces are well discussed in literature for a wide range of size-to-wavelength ratios (including long- and short-wave limits) to find the optimal texture size.

As mentioned above, natural index-matching "coatings" were discovered by Lord Rayleigh in 1886. Harold Dennis Taylor of Cooke company developed a chemical method for producing such coatings in 1904.

Interference-based coatings were invented and developed in 1935 by Olexander Smakula, who was working for the Carl Zeiss optics company.World War II.Katharine Burr Blodgett and Irving Langmuir developed organic anti-reflection coatings known as Langmuir–Blodgett films in the late 1930s.

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Duffner, Lee R (27 February 2015). "Anti-reflective Coating - American Academy of Ophthalmology". Anti-reflective Coating - American Academy of Ophthalmology. American Academy of Ophthalmology. Retrieved 22 January 2016.

Moghal, Jonathan; Kobler, Johannes; Sauer, Jürgen; Best, James; Gardener, Martin; Watt, Andrew A.R.; Wakefield, Gareth (2012). "High-performance, single-layer antireflective optical coatings comprising mesoporous silica nanoparticles". ACS Applied Materials & Interfaces. 4 (2): 854–859. doi:10.1021/am201494m. PMID 22188238.

Han, Z.W.; Wang, Z.; Feng, X.M.; et al. (14 October 2016). "Antireflective surface inspired from biology: A review". Biosurface and Biotribology. Elsevier. 2 (4): 137–150. doi:10.1016/j.bsbt.2016.11.002. Retrieved 16 November 2020.

Dell P2419H 24 Inch LED-Backlit Anti-Glare 3H Hard Coating IPS Monitor - (8 ms Response FHD 1920 x 1080 at 60Hz 1000:1 Contrast with ComfortView DisplayPort VGA HDMI and USB) Black P2419H

Optimize your workspace with this efficient 24" monitor built with an ultrathin bezel design a small footprint and comfort-enhancing features. The three-sided ultrathin bezel design lets you enjoy an uninterrupted view of your content across multiple monitors. And, with dual monitors, you can increase your productivity by up to 18%. Display position adjustments = Height-adjustable stand (130mm), tilt (-5 degrees to 21 degrees ) , Swivel (-45 degrees to 45 degrees ) and pivot (-90 degrees to 90 degrees).

Optimize your workspace with this efficient 24" monitor built with an ultrathin bezel design a small footprint and comfort-enhancing features. The three-sided ultrathin bezel design lets you enjoy an uninterrupted view of your content across multiple monitors. And, with dual monitors, you can increase your productivity by up to 18%. Display position adjustments = Height-adjustable stand (130mm), tilt (-5 degrees to 21 degrees ) , Swivel (-45 degrees to 45 degrees ) and pivot (-90 degrees to 90 degrees).

Dell-IMSourcing P2419H 23.8" Full HD LED LCD Monitor - 16:9 - Black, Gray - In-plane Switching (IPS) Technology - 1920 x 1080 - 16.7 Million Colors - 250 Nit - 5 ms GTG - HDMI - VGA - DisplayPort OPEN BOX SEE WARRANTY NOTES

You"re reviewing:Dell P2419H 24 Inch LED-Backlit Anti-Glare 3H Hard Coating IPS Monitor - (8 ms Response FHD 1920 x 1080 at 60Hz 1000:1 Contrast with ComfortView DisplayPort VGA HDMI and USB) Black P2419H

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Anti-reflective glass has been optically coated on one or two sides to eliminate reflections and increase the light transmission. JNS anti-reflective glass reduces surface glare and increases substrate transmission and brightness, offering better contrast definition over a specific wavelength range. JNS produces single or multilayer dielectric AR coatings. Anti-reflective coatings can be designed for the UV, Visible or IR spectrums on any types of substrates ranging from custom optics, acrylic, polycarbonate, heat tempered glass or Gorilla Glass™.

Anti-Glare, also referred to as Non-Glare glass, is manufactured by acid etching one or both surfaces of the glass.  Anti-Glare glass provides uniform evenly diffused surfaces for high resolution applications.  JNS Glass & Coating’s Anti-Glare Glass disperses reflected light, allowing the user to focus on the transmitted image. Non-Glare Glass is available in several etching levels: from 50 to 130 gloss units.  The lower gloss rating equals a more diffused glass surface.