Manuals / Philips / Computer Equipment / Computer Monitor

Philips 107S21, 109S20, 107S20 Flicker, Hertz, Horizontal dot pitch, Horizontal scanning frequency

Models: 109S20 105B20 107S20 107S21

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Glossary

In 1991, the Swedish Tjänstemannens Central Organization (TCO, Swedish confederation of Professional Employees ) set a standard even more severe than MPR-II, especially for alternating electric fields (AEF). The TCO standard is more severe since not only are the permitted field levels reduced compared with MPR-II, but the measuring distance is also reduced (see table).

Electromagnetic radiation standards

EMI (Electrical Magnetic Interference)

The electrical and/or magnetic radiation coming from the working electrical or electronic equipment.

EMS (Electrical Magnetic Sustainment)

The ability of electrical or electronic equipment to function properly in the environment with electrical and/or magnetic interference.

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F

Flicker

Very rapid variations in picture intensity caused by the finite time required for the electron beam to scan a picture onto the screen. Two kinds of flicker occur: line flicker caused by the electron beam scanning-in each line of the picture; and frame flicker (or field flicker if the picture is interlaced) caused by the frame repetition rate of 50 frames/second. Frame flicker is noticeable with GUI and DTP software (which have a light background), and can be very disturbing, especially for those who work regularly with displays - contributing to eye strain, headaches, visual blurring, stress, etc. The problem can, however, be eliminated by increasing the refresh rate (number of frames/second) of the monitor to a value above around 70 Hz. Sensitivity to flicker appears to diminish with increasing age.

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H

Hertz

The unit of frequency named after the physicist Heinrich Hertz (1857-1894). 1 hertz (Hz) is equal to 1 cycle/second.

Horizontal dot pitch

See Dot pitch.

Horizontal scanning frequency

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Philips 107S21, 109S20, 107S20, 105B20 user manual Flicker, Hertz, Horizontal dot pitch, Horizontal scanning frequency
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109S20, 105B20, 107S20, 107S21 specifications

Philips has long been a leader in the display technology industry, and their monitors, such as the Philips 107S21, 107S20, 105B20, and 109S20, are prime examples of this commitment to quality and innovation. Each of these models possesses distinct features, technologies, and characteristics that cater to various needs, making them suitable for both professional and personal use.

The Philips 107S21 is a notable CRT monitor that offers a 17-inch display, providing ample screen real estate for tasks ranging from everyday computing to graphic design. One of its standout features is the 1280 x 1024 resolution, which delivers crisp and clear images. The 107S21 also emphasizes user comfort through a Flicker-free technology combined with a low Blue Mode, effectively reducing eye strain during prolonged usage. This makes it an ideal choice for users who spend long hours in front of a screen.

Moving on to the Philips 107S20, this model is designed for users seeking a balance between performance and affordability. It also boasts a 17-inch screen with a resolution of 1280 x 1024, similar to the 107S21. However, what sets it apart is its enhanced color reproduction capabilities, allowing users to engage in more vibrant multitasking and creative work. The model incorporates a SmartControl Lite feature, enabling easy adjustment of display settings and ensuring optimal viewing comfort.

The Philips 105B20 introduces users to a slightly smaller yet versatile option with its 15-inch display. Although it features a lower resolution of 1024 x 768, it compensates with excellent color depth and uniform brightness, ensuring that even smaller screens can deliver stunning visuals. This makes it practical for users with limited desk space or those who need a secondary monitor for additional productivity.

Lastly, the Philips 109S20 stands out as a larger 19-inch CRT monitor that can cater to more expansive workspace needs. It features a resolution of up to 1280 x 1024 as well, making it suitable for tasks requiring detailed visuals. With its built-in image enhancement technologies like Dynamic Contrast, this monitor ensures that darker scenes are portrayed with significant detail, making it appealing for multimedia applications.

Collectively, the Philips 107S21, 107S20, 105B20, and 109S20 deliver strong performance and diverse features that cater to various user requirements. Whether for business applications, graphic design, or general use, these monitors exemplify Philips' commitment to providing quality display solutions.