June 18, 2021

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The Eye-Friendly Monitor

Are you planning to buy a new Best monitor for the eye? Or do you want to find out more about possibilities due to problems with your eyes? Which monitors are easy on the eyes? Below you will find out the nine most important points that you should pay attention to when making a purchase.

In the following two articles, you will find a comparison of the best eye-friendly monitors sorted by screen size and my recommendation for different purposes.

I will also introduce you to the first innovative E-Ink Paperlike monitors. Your eyes will be amazed!

9 points to look out for when buying a monitor

Content:

  1. Flicker-Free technology
  2. Blue light filter
  3. TCO seal of approval
  4. Screen resolution
  5. a matte display
  6. the contrast ratio
  7. Brightness Intelligence Technology
  8. adjustability
  9. the viewing angle

1. Flicker-Free Technology

Monitors typically run on AC power. The diodes of the background lighting generate a barely perceptible flicker when changing the direction of the current.

Also, many manufacturers use the inexpensive option of pulse width modulation PWM (Pulse Width Modulation) to regulate the brightness. The signal for the background lighting is switched on and off at certain intervals. Since this flicker is too fast to be consciously perceived by our brain, it appears to us as if the monitor is dimmed. With a brightness setting of 100%, the PWM should not be used. Unfortunately, the screen light is usually too bright to use the maximum brightness.

Although we are usually not aware of the flicker, it can cause epilepsy, eye pain, headaches, and nausea. Because the pupil has to constantly readjust to the changed brightness. A PWM in a high frequency creates fewer problems than in a low one. However, sensitive people can still perceive a flicker at a frequency of 500 Hz. Stroboscopic effects can still occur up to a frequency of 2,500 Hz.

Direct Current (DC) – Technology

As an alternative to the usual technology, there is the option of operating the backlight with constant voltage direct current. Here, alternating current is converted into direct current, with which there is no flicker. AOC and iiyama, for example, use this technology.

2. Blue light filter

For the backlighting of monitors, diodes are used that emit light in different color spectra. The blue light is the light with the highest energy. It is in the wavelength range between 380 and 500 nanometers and is close to UV light. Due to its high energy density, this light is very stressful and even harmful to the eyes.

To protect yourself from too much blue light, you can use a blue light filter. With eye-friendly monitors, you can set the blue light filter in different modes depending on your needs.

3. TCO seal of approval

The TCO seal of approval is awarded by the umbrella organization of the Swedish workers ‘and civil servants’ union, the Tjänstemännens Central organization (TCO). It is the world’s most comprehensive sustainability certification for IT products. The strict TCO test seals go far beyond industry standards and legal requirements.

The criteria relate to social and ecological sustainability in production, use, and disposal.

The newest seal of approval is TCO ’06. Among other things, it guarantees the following properties:

ergonomics

Good quality even when playing back moving images thanks to the short image build-up time, a good black scale, and higher requirements for gray levels.

High visual ergonomic requirements for the screen, which guarantee high image quality and color rendering.

emission

considerable reduction in magnetic and electric fields

energy

4. Screen resolution

The screen resolution is the size and number of pixels that are displayed on the screen. It is an important factor in good graphics. The screen resolution is always related to the screen size and format.

A large screen should also have a high resolution, but on a small screen, you can still get a good picture at a lower resolution.

For monitors up to 27 inches, Full HD with 1920 x 1080 pixels is sufficient. The new 4K resolution (Ultra High Definition) with 4096 x 2160 pixels is recommended for larger monitors.

Note: A powerful graphics card is also required for high resolution.

5. a matte display

The surface of the display has a decisive influence on good legibility and eye-friendly viewing pleasure. Although smooth surfaces offer a strong color brilliance, the weakest light beam is reflected and the eye has to work harder. Especially when working outdoors, the reflected sunlight can spoil the most beautiful weather.

Therefore, your monitor should have a matte display. This is achieved by a surface coating that is rough and therefore diffuses the incoming light rays in many directions. This greatly reduces reflections and gloss effects.

Another advantage is that the matte screen is also less prone to fingerprints. This is particularly important with a touch screen.

By the way, the anti-reflective coating of monitors is tested by the GS seal of approval “tested security” and measured according to the DIN EN ISO 9241-307 standard.

However, the case materials should also be as matt as possible. Because shiny edges can be annoying when working on a computer screen. Light colors are also preferable to dark ones.

6. the contrast ratio

A good contrast ratio is important for legible texts and rich colors. The greater the contrast ratio between maximum brightness and maximum darkness, the more diverse the colors and the more visible the texts.

The panel used is decisive for the contrast and image quality. Those who value a good contrast ratio should opt for an IPS panel. Because these offer good contrast values ​​and that also with different viewing angles. The disadvantages, however, are the higher power consumption and a shorter response time than, for example, TN panels.

So the higher the contrast ratio, the better. But beware! The static contrast ratio measured is decisive.

The dynamic contrast ratio, which cannot be compared with this, achieves higher values ​​and is therefore often highlighted by manufacturers in an advertising-effective manner, but is only of secondary importance in its importance.

7. Brightness Intelligence Technology

Currently unique to BenQ *, a pioneer for eye-friendly monitors. The Brightness Intelligence technology automatically regulates the brightness and color temperature of the display and adapts it to ambient light.

8. Adjustability

The screen should be adjustable without great effort and effort.

Ideally, it can be rotated, adjusted in height, and tilted. It can be adapted to both individual body size and environmental conditions.

Screens that can be rotated by 90 degrees (pivot function) are useful for text editing, but the ergonomically appropriate monitor position should always be taken into account.

9. the viewing angle

The viewing angle plays a very important role in the representation of color and contrast. Ideally, there should be no color distortion when you change your perspective.

A good side view is particularly important when you are looking at the same screen with other people at the same time. So if you work in a team in your job, buy a device with a good vision class. Even if you use a second monitor at your workplace, a wide viewing angle is an advantage. With PVA and ISP panels, the best results are currently achieved with a horizontal/vertical viewing angle of 178 ° with a contrast ratio of 10: 1.

E-Ink monitors

Ebook readers are a great and popular alternative to traditional books. In addition, you can also save websites as PDF documents and read them to the reader without harming your eyes.

But that was just the beginning. The promising technology of paper-like screens is constantly evolving. The first innovative e-ink monitors and smartphones are now available to buy.

The advantages of these products are convincing:

  • no flicker or flicker
  • no glare from ambient light
  • no backlight
  • minimal power consumption
  • light and thin design

In addition, the technology of the e-ink monitors has meanwhile developed so far that you can not only read and edit texts but also surf the Internet and even watch films.