Anti blue light screen protector for desktop: Anti Blue Light Screen Protector, Anti Glare(3 Pack) for 24 Inches (24″ Measured Diagonally) Desktop Monitor. Screen Protector Size is 20.9 inches width x 11.8 inches height. Filter out Blue Light and relieve computer eye strain to help you sleep better : Electronics

EYES PC Blue Light Blocking Screen Protector Panel for 23 and 24 inch Diagonal LED PC Monitor (W 21.06 X H 13.78 inch) : Electronics

4.4 4.4 out of 5 stars
1,483 ratings

Currently unavailable.
We don’t know when or if this item will be back in stock.


21.06W x 13.78H , 23, 23.6, 24 INCH DIAGONAL

Compatible Devices Desktop
Material Acrylic
Item Hardness H
Product Dimensions 21. 06″L x 13.78″W
Special Feature Blue Light Block, Scratch Resistant
Finish Type Glossy
Unit Count 1.0 Count
Screen Size 24 Inches
Screen Surface Description Glossy

Shop products from small business brands sold in Amazon’s store. Discover more about the small businesses partnering with Amazon and Amazon’s commitment to empowering them.

Learn more

Small Business

This product is from a small business brand. Support small.
Learn more

Note: Products with electrical plugs are designed for use in the US. Outlets and voltage differ internationally and this product may require an adapter or converter for use in your destination. Please check compatibility before purchasing.

Blue Light Screen Protectors for Laptop and PC Monitors
| Ocushield

Metric size guide

 Width (Horizontal) x Height (vertical) – MM (Millimetres)

Only measure the width (W) and height (H) of the screen’s viewable area, making sure to measure within the bezel (no frame).

D (Diagonal measurement) = screen size.

11.6″ W (257 x 145) 22″ W (474 x 297)
12.1″ W (261 x 164) 23″ W-A (510 x 287)
12.5″ W (277 x 156) 23″ W-B (496 x 310)
13.3″ W-A (294 x 166) 23.6″ W (522 x 294)
13.3″ W-B (287 x 179) 23.8″ W (527 x 296)
14″ W (310 x 175) 24″ W-A (519 x 325)
14.1″ W (304×190)

24″ W-B (532 x 299)

15.4″ W (332x 208)

26″ W (552 x 346)

15.6″ W (345 x 194) 27” W-A (582 x 364)
17″ (338 x 271) 27” W-B (598 x 337)
17″ W (368 x 230)
19″ (377 x 302)
19″ W (409 x 256)
21″ W (453 x 283)
21. 5″ W (477 x 268)

Width (Horizontal) x Height (vertical) – IN (inches)

Only measure the width (W) and height (H) of the screen’s viewable area, making sure to measure within the bezel (no frame).

D (Diagonal measurement) = screen size.

11.6″ W (10.12 x 5.70) 22″ W (18.66 x 11.70)
12.1″ W (10.28 x 6.46) 23″ W-A (20.08 x 11.30)
12.5″ W (10.91 x 6.14) 23″ W-B (19.53 x 12.20)
13.3″ W-A (11.57 x 6.54) 23.6″ W (20.55 x 11.57)
13.3″ W-B (11.30 x 7.05) 23.8″ W (20.75 x 11.65)
14″ W (12.20 x 6.89) 24″ W-A (20.43 x 12.80)
14.1″ W (11.9 x 7.4) 24″ W-B (20.94 x 11.77)
15.4″ W (13 x 8.1) 26″ W (21.73 x 13.62)
15.6″ W (13.59 x 7.64) 27” W-A (22. 91 x 14.33)
17″ (13.31 x 10.67)

27” W-B (23.54 x 13.27)

17″ W (14.49 x 9.06)
19″ (14.84 x 11.89)
19″ W (16.10 x 10.08)
21″ W (17.83 x 11.14)
21.5″ W (18.78 x 10.55)

Blue light filter computer screen

What’s that all about?

Blue light is part of the visible light spectrum. It’s naturally present in sunlight, but it’s also found in the light emitted from your computer or laptop screen. Although blue light helps to keep us alert, overexposure can have a number of unwelcome side effects.

Computer blue light, it’s a modern day menace – filter it

While exposure to natural blue light in the morning is healthy and helps to keep our circadian rhythm in check, overexposure caused by too much screen time can lead to negative side effects to our wellbeing, including headaches, eye strain and fatigue.

Blue light also restricts the production of melatonin (a chemical that helps us sleep) which disrupts your natural sleep cycle and means you’re likely to feel lethargic, irritable and unproductive. That doesn’t make for an uplifting morning routine!

That’s why we created Ocushield’s range of blue light blocking computer screen screen protectors for laptops and monitors.

Our blue light screen protector for computers and laptops blocks out any harmful blue light before it gets the chance to reach your eyes. This means you’ll be able to use your device day and night, without worrying about the impacts of blue light. As your eyes are the most sensitive part of your body, it’s important you protect them to prevent blurred vision, digital eye strain and headaches.

Developed by qualified optometrists, our medically-accredited blue light filter for laptop screens and PC’s mean you don’t have to choose between screen quality and blue light blocking solutions again. Our medically-rated screen filters block up to 99% of harmful UV & blue light emissions between 300-400nm and up to 54% of harmful blue light between 400-470nm.

All you need to do is fit the screen protector using the applicaton methods provided to your device, and you’re ready to work and play. The result is a crystal clear display for your monitor or laptop, and a healthier, more productive you.

How do low blue light monitors and software compare?

With new monitor screens being released, a lot of manufacturers claim “low blue light” settings, but how effective are they really? Most don’t make a large enough impact to make a difference. See how Ocushield screen filters compare.


What’s in the package of the eye protector for computer screens?

✦ Anti-blue light screen protector
✦ Cloth & dust removers
✦ Two installation kits for ease of application
✦ Full instructions on application and usage

Expert Approved Blue Light Protection For All Eyes

Certified B-Corp

We care about the environment, communities and our workforce.

Ocushield meets the highest standards of social and environmental impact via the B Corp certification. Meaning we adhere to strict regulations to ensure our products are made sustainably, that we contribute profits to charities and that we pay our workforce fairly. We are glad to join businesses being a force for good.

Fast UK shipping

Protecting you from the harms of blue light all across the UK.

100-day refund

Not impressed? Get a refund. You have 100 days to break our hearts.

Created by optometrists

Made by eye-care experts and sleep therapists. No gimmicks here.


 To find the right size screen protector, we recommend that you measure it diagonally from each edge — from the top left corner to the bottom right corner. This will give you the measurement you need to choose from our dropdown menu. For more help, check out the diagrams on this page.

To apply our blue light blocking filters to your device, sticky tabs are essential. These allow you to keep the protector fixed in place.

Our screen protectors for laptops and monitors are designed with an infused privacy filter, allowing you to work in peace and preventing others from checking out your screen.

If you can’t find the right size for your laptop, PC or monitor, you can buy a larger one and cut it down to fit properly. We recommend that you use a stanley knife to ensure best fit — of course, be careful!

We offer free worldwide shipping when you spend over £44.99 (or $62.99)

USA: $5.00 (USD). Items take 3 days on average to arrive, but can take up to 6 in some circumstances. Shipped from local fulfilment centres in the USA.

UK: £1.95 (GBP). Items take 2 days on average to arrive, but can take up to 4 in some circumstances. Shipped from local fulfilment centres in the UK.

Canada: $6.99 (CAD). Items can take up to 10 working days to arrive, 5 on average. Shipped from the USA.

AU: $6.99 (AUD). Items can take up to 20 working days, 110 on average. Shipped from the UK.

EU: €3.95 (EUR). Items can take up to 10 working days, 65 on average. Shipped from the UK.

Rest of the World: $7.00 (USD). Items can take up to 20 working days, 7 on average. Shipped from the UK. 

Express and Next-day delivery options are also available.

Dip a microfiber cloth in a solution of water and vinegar (use less water than vinegar), then apply the damp cloth to the sticky surface.

Let the solution rest on the screen for a couple of minutes so that it can dissolve the adhesive effectively.

Now, you can easily rub off the sticky residue using the cloth.

Glare happens when there is harsh lighting around us, coming from sun-light through a window or a bright artificial light source above or around us. Anti glare computer screen products like Ocushield’s can stop glare happening so you can see whats on your monitor, computer, pc or laptop screen without any trouble.

Yes, Ocushield blue light filters also work as a privacy screen for monitors and laptops meaning sneaky people cannot see your screen from the side. As well as this the anti-bacterial, glare and blue light features make it the swiss army knife of screen filters.

We do have laptop screen filters up to 16 inches, please look at the size guide to find what is the best filter to fit your laptop.

The laptop screen filter and protector works to protect your laptop at the same time. Worried about dropping items on your screen and scratching them? This filter has you covered.

A pc emits blue light which is harmful to our eyes and sleep – a blue light filter can filter the harmful blue light meaning you can have fresher feeling eyes and better sleep after pc screen use.

There are numerous ways to limit blue light on a pc, from software, physical filters, glasses and dimming the light on the screen it self. With the Ocushield filter you can reduce the blue light without turning your screen orange unlike software which tends to make colours distorted.

This privacy screen protector can fit multiple iMac sizes, including 21.5, 24 and 27 inches.

Show more

Get 15% off

How gadgets can protect eyesight / Sudo Null IT News

The rules for eye protection when working at a computer are well known: rest more, take short breaks, take your eyes off the screen every 20 minutes and look for 20 seconds at the most distant objects in the perspective of vision.

However, displays have long gone beyond the desktop. We look at a laptop, smartphone, TV, tablet, e-book – everywhere we are surrounded by eye-catching light sources. Exercising and taking breaks from work alone will not solve the problem of excessive eye strain. We face headaches, vision problems and chronic fatigue syndrome.

Fortunately, the developers themselves at the software and hardware levels have begun to care more about the health of the user. Technologies and software have appeared that allow minimizing the light exposure of displays.

Adverse effects

Computer vision syndrome is the official term coined by the American Optometrist Association. The syndrome is characterized by a decrease in visual acuity, difficulties in looking from near objects to distant objects and vice versa, double vision of visible objects, black “flies” and darkening in the eyes, excessive light sensitivity, etc.

Our eyes blink 17 times per minute on average, but when we look at a screen we “forget” to blink, which often leads to feeling dry or itchy. We often sit in a heavy posture for the body, forget about rest, and relax simply by opening another tab in the browser.
One of the causes of the “computer syndrome” is the flickering of the display caused by the backlight brightness control process (pulse width modulation, PWM). The LED backlight does not shine constantly, but alternately turns on and off for the smallest fraction of a second. Screen flickering may occur, especially at low brightness levels.

This problem is common not only for computer monitors, but also for smartphone AMOLED displays. Changes in the brightness of the backlight when it is turned on and off, even imperceptible at first glance, are a good cause of computer vision syndrome. There are technologies that get around the potential problems of PWM. For example, you can remove flicker by creating a constant source of LED backlight.

Anti-Glare Screen Protector

Another problem (which many people don’t take seriously) is the screen’s glossy finish, which reflects light. “Gloss” leads to unpleasant reflections and glare, which cause eye strain and fatigue. Anti-reflective (or matte) coating removes this drawback. You can get rid of glare with the help of a film or an external hinged screen, and the second option often has an additional useful function – it does not allow you to peek from the side.

Renowned glass manufacturer Corning is also planning to release Gorilla Glass with a new anti-reflective coating. Improved glass should make it easier to use a smartphone in direct sunlight. Most displays today have low peak brightness or high reflectivity, or both. Light reflects off the glass, making the display dark or dim. You have to strain your eyes to see the picture.

Corning’s prototype safety glass with a special anti-reflective coating reflects only 1% of incident light (most solutions around 5%), which is quite close to the physical limit. A thin film on glass not only reduces the intensity of light waves, but also improves color fidelity.

Science also does not stand still. Researchers at MIT have even created a special glass on which glare is virtually non-existent. The surface of the glass was coated with conical nanostructures that repel water, dirt and glare in direct sunlight. Such a technology will finally solve the problems of glossy surfaces in the future.

To make your eyes less tired, it is not enough to choose a display color that suits you personally. You need to adjust the brightness so that the background colors change from bright white to cool gray. The brightness of the screen should not contrast with the ambient light – forget about working in complete darkness. If you are working in a brightly lit room, increase the brightness of the image; if the light in the room is dim, lower the brightness.

In order for the brightness of the display to match the illumination of the surrounding workspace, you need to compare the white background on the monitor with a sheet of paper – the brightness of the sheet and your desktop should be close. The lighting in the room where the display is installed can change dramatically in the morning, afternoon and evening, so the screen brightness should be adjusted accordingly. In an office with a normal brightness of 300-500 lux, the display brightness should be adjusted to about 100-150 cd/m2.

Blue light threat

Radiation with wavelengths in the range of 440-485 nm is one of the main problems of modern civilization. Too much blue light in cities disrupts the brain and disrupts the natural sleep-wake cycle. Several scientific papers – among which the “Effect of Light on Human Circadian Physiology” stand out – convincingly prove the destructive effect of blue light on the 24-hour human biological cycle.

For millions of years life has existed under the same conditions: the sun rises in the morning and darkness falls in the evening. The daily cycle of light and dark regulates changes in the behavior and physiology of most species. Research has shown that these changes are regulated by the biological clock, which in mammals is located in two areas of the brain called the suprachiasmatic nuclei. The circadian cycles set by this watch are found everywhere in nature and have a period of about 24 hours.

Circadian cycles can be synchronized with external time signals, but are retained in the absence of such signals. In multi-month underground experiments, the subjects experienced a transition of the biological clock from a 24-hour day to a 48-hour day (36 hours of wakefulness and 12 hours of sleep).

Research has shown that the internal clock is made up of an array of genes and protein products that regulate various physiological processes throughout the body. Violations of biological rhythms can worsen health and general well-being.

The biological clock is also responsible for ensuring that physiological changes occur in coordination with each other. And of course they determine when we are awake and when we are asleep. And for this, the biological clock needs an “external source of information” – light. If there is light around, it is necessary to act, to get food. When darkness comes, the body goes into “sleep mode” to accumulate strength, heal, etc.

However, light itself is not a signal that triggers the circadian rhythm. Only the blue part of the spectrum is responsible for this. Blue light helps us stay awake, improves mood, improves productivity. Research has shown that it is easier for our eyes to filter out green and red spectrum light (yes, like in RGB). However, the high energy level in blue light has a more noticeable effect on humans.

There is a lot of blue light in sunlight, but the Sun is not the only source of it. The problem begins in the evening, when the Sun goes below the horizon, but the light remains. Light bulbs, monitors, smartphone displays emit blue light, interfering with the production of the sleep hormone melatonin. From the point of view of the body, everything is logical – since we see the light, it means that it is still daytime and we need to maintain vigor.

This seems to be great news: without much effort, we become more efficient for a period that exceeds daylight hours. This is especially true in winter. However, the suppression of melatonin in the evening, at best, causes increased fatigue, and at worst, depression, obesity and cancer.

The way out of this situation is quite simple – to exclude blue light in the evening.

Blocking radiation

Simple glasses with amber (orange) glasses deceive the brain and force it to produce as much melatonin as it “produces” in complete darkness. The orange filter removes any light with a wavelength less than 530 nm.

These glasses are used to make glasses for working at a computer – for example, the Gunnar Optiks series. They reduce glare and increase contrast, the eyes are less tired during prolonged work.

Not only the color of the glass matters, but also the type of lens. Bifocal and trifocal spectacle lenses allow you to see objects at any distance clearly. Bifocal and multifocal lenses reduce the effort of the lens muscles when focusing when you are trying to view objects at close range, which is especially important when working at a computer.

Professional “progressive” lenses eliminate the disadvantage of bifocal lenses – “image jump”. In glasses with bifocal lenses, a person, looking from a distant object to a near one and back, feels a “jump” – a sharp shift in visible objects. “Progressive” lenses are more comfortable to work with the display, but are not recommended for extended use.

Automated light adjustment

Not everyone can walk around with glasses every night or tweak the display settings of all available devices. Another effective way to increase melatonin synthesis is to use special computer programs that automatically adjust color and brightness. If your smartphone does not have a built-in protection mode, you can choose one of the available applications – for example (for Android) Twilight.

The Eye Relax Android app reminds you to take a break. The app reminds you to take short breaks every 30 minutes (there is also a desktop version). It also has an eye relaxation tool: two circles will appear on the screen – the user’s task is to make each eye look at a separate circle: the left eye on the left circle, the right eye on the right. The circles will gradually move away from each other, which indicates the relaxation of the medial muscles of the eyes.

The easiest way to optimize eye strain when working at a PC is to use F. lux. This free app automatically changes display settings to predefined color temperatures that match your lighting environment, based on where the Sun is currently located.

During the day, f.lux selects a default color temperature setting of 6500K, which corresponds to a standard daylight white light source close to midday sunlight. It is during this period of time that your eyes receive blue light from the display. At night, f.lux selects a warmer, yellower color temperature of 3400K, which is what we see in real life when the sun is near the horizon. You can also choose from presets (halogen, fluorescent, daylight, etc.) or customize the settings for other preferences.

Finally, ASUS Splendid technology, familiar to owners of ASUS smartphones, laptops and desktop monitors, not only improves picture quality, but also allows you to adjust the color temperature. To do this, there is a special mode that reduces the intensity of blue.

And yet, let’s not forget that the best rest for the eyes is to look at distant objects that are not themselves a source of light. For an adult, the danger of working at a computer is greatly exaggerated, and by following all of the above recommendations, you can level out the possible harm.

HUAWEI phone screen colors are distorted, one color tint prevails, or the phone screen is black and white

Scenario 1: screen colors are distorted, or one color tint dominates (yellowish, reddish, bluish, greenish, or only black and white)

Scenario 2: Home screen icons appear black

Scenario 3: Screen displays white test on black background

Scenario 4: Phone screen colors change from cool to warm

Scenario 5: Phone screen is black and white

Scenario 1: Colors on the screen are distorted, or one color tint prevails (yellowish, reddish, bluish, greenish, or only black and white)

  1. Check if you are using an unofficial screen protective film (e.g. tempered safety glass). If yes, remove it and try again.
  2. It is recommended to use the default color temperature instead of choosing Warm or Cool. Open Settings, find and open the Color mode and temperature section and select the Default option.
  3. The Color Correction function is enabled. Open Settings, search for and open Color Correction and turn off Color Correction.
  4. Simulate anomaly is enabled. Go to Settings > System & updates > Developer options > Simulate anomaly and select the option Disabled .

Sign in to Developer options: open Settings, find and go to About phone. Click on the version number seven times in a row until the message “You are now a developer!” appears on the screen.

Scenario 2: Home screen icons are black

Invert Colors is enabled. Open the Settings app, find and open the Invert Colors section and turn off this feature.

Scenario 3: The screen displays a white test on a black background

The problem occurs when Dark Mode is enabled.