Csaba Balogh "width =" 70 "height =" 70 "src =" https://img2.hvg.hu/image.aspx?id=9680443c-2682-44c8-99e6-947e37803d44&view=fbbd1604-1e71-4aba-9b60- d5d269428be5

Csaba Balogh

No one in the circle wants to lose: black is the new white on the internet. The increasing use of the dark surface for the device and the user can do well.

We can divide the most popular computer programs and phone applications into two groups. One includes those who got the night mode by the end of March and the other, whose programmers will activate this feature from April through December. Moreover, it is hardly desirable (or daring) for any company to postpone adherence to the phenomenon that has clearly become a trend in recent months. People may decide to use the black surface instead of the white background, which is almost automatically associated with the term "clean design".

Recently – and perhaps moving most users so far – the dark messy mode has been introduced in the Facebook messaging service. It was probably just a clever marketing idea that at first it was possible to activate the black background with a series of steps based on the logic of the hidden modes of computer games. If you kept your promise on Facebook, the configuration options for each installed instance of the Messenger application were listed on days. There was a need to hurry because, in the meantime, competitor Viber made available the possibility of blackout.

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Another line of Facebook's rivals, Twitter, has opened the line of providers with hundreds of millions of users. On the microblogging platform, the dark mode became available in the summer of 2016, which was appreciated by the designers. Glory has since disappeared in the light of (resiliency) the solution of the others who have joined in recent months, it is rather strange that the dark mode in the mobile application of Twitter means a grayish background instead of black. Jack Dorsey, the company's CEO, co-founder of the company, also promised a coloring that has already happened on the iPhone.

Because dark mode is most useful if you base the user interface in black. The principle of operation is not rocket science. For a display to illuminate a blank pixel, power is required. However, leaving a black pixel requires no power at all. At least for most of the OLED technology screens used today, thanks to their popularity, this way – unlike LCD screens with some backlight – they are able to display real black: they just do not show anything there. The high-resolution screens used on computers and phones consist of millions of pixels, making them energy-efficient if the screen background is not white but black.

Google experts also quantified the advantage at the Android Dev Summit Developer Conference last November. A Google Maps screenshot has been placed on a mobile phone with an LCD screen and an OLED screen. The first showed consumption of 230 milliamperes for white and black backgrounds. In the case of the OLED white background, it was 250 milliamperes, but in the dark mode it was only 92 milliamperes. The savings are significant, 63%.

The black background is less quantifiable, but the most important advantage is the human view. Because the eye is much less strenuous if most of the screen does not light up. However, modern man is sitting in front of large or large screens for many hours, many at work and at home. However, reading many articles or e-books may not be a good idea to switch to night mode. The British edition of the Wired Technology Lifestyle Magazine publishes a study published six years ago in the journal Ergonomics, where, after some experimentation, the research team led by Cosima Piepenbrock concluded that when reading longer texts, the eye was still less tired of black on white background. to follow the text as white text written on a black background.

Whether it's text long or short, surfing the net is not easy in night mode. Although there is already a blackout switch in the operating system or in the Google Chrome browser, open web pages have their own white background color in many cases. Browsers can also darken them – external plug-ins can already be downloaded to them – but larger sites can also design their own switches.

The article is HVG Weekly 2019/14. was published. If you want to know about similar things at other times, look for the Tech + science column in the weekly and follow the HVG Tech Facebook page.

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