Energy Star Computers Program, Gamma, Grayscale

Glossary

Energy Star Computers Program

An energy conservation program launched by the US Environmental Protection Agency (EPA), promotes the manufacture and marketing of energy-efficient office automation equipment. Companies joining this program, must be willing to commit themselves to manufacture one or more products capable of going into a low -power state (< 30 W) either after a period of inactivity, or after a predetermined time selected by the user.

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Gamma

Screen luminance as a function of video voltage approximately follows a mathematical power function of the input video signal, the exponent of which is called gamma.

Grayscale

An achromatic scale ranging from black through a series of successively lighter grays to white. Such a series may be made up of steps, which appear to be equally distant from one another. If the Analog/ Digital converter is 8 bit, then the monitor can display at most 28 = 256 levels. For a color monitor, R.G.B. each color hads 256 levels. Thus, total color can display is 256x256x256= 16.7 million.

Hue

The main attribute of a color that distinguishes it from other colors. For example, a color may have a green, yellow, or purple hue. Color defined as having hue are know as chromatic colors. White, black, and grays possess no hue.

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220XI specifications

The Philips 220XI is a versatile and innovative display that has been making waves in the world of professional monitors. Designed with attention to detail and user-centric features, the 220XI is an excellent choice for creatives, gaming enthusiasts, and professionals requiring high-quality visual output.

One of the standout features of the Philips 220XI is its stunning visual performance. It boasts a 21.5-inch Full HD (1920 x 1080) resolution that ensures crisp and vibrant images. The display utilizes an IPS (In-Plane Switching) panel which provides wide viewing angles, allowing colors to remain consistent and true to life, whether you're viewing the screen from the side or directly in front. This characteristic makes it ideal for collaborative work environments where multiple users are viewing the screen simultaneously.

Color accuracy is another hallmark of the Philips 220XI. It covers 100% of the sRGB color gamut, which brings out vivid colors and enhances the overall viewing experience. This feature is especially beneficial for graphic designers and photographers who rely on accurate and true-to-life color representation for their projects.

In terms of connectivity, the Philips 220XI is equipped with multiple ports including HDMI, VGA, and DisplayPort, ensuring compatibility with a wide range of devices. The monitor also supports MHL (Mobile High-Definition Link), which allows users to link their mobile devices directly to the screen for a larger display of their content.

The monitor’s ergonomic design is another notable characteristic. It features a slim bezel design that maximizes the screen estate, thus providing a more immersive viewing experience. Moreover, its adjustable stand allows users to tilt, swivel, and adjust the height of the monitor for optimal comfort, reducing strain during long hours of usage.

For those concerned about eye health, the Philips 220XI includes features such as LowBlue Mode and Flicker-Free technology, which aim to reduce eye fatigue during extended screen time.

In summary, the Philips 220XI combines superb image quality, extensive connectivity, ergonomic design, and features aimed at eye comfort, making it a well-rounded option for a variety of users. Whether for work or play, the Philips 220XI sets a high standard in the monitor market.