FAQs (Frequently Asked Questions)

Q:What is a Liquid Crystal Display?

A:A Liquid Crystal Display (LCD) is an optical device that is commonly used to display ASCII characters and images on digital items such as watches, calculators, portable game consoles, etc. LCD is the technology used for displays in notebooks and other small computers. Like light-emitting diode and gas-plasma technologies, LCD allows displays to be much thinner than cathode ray tube (CRT) technology. LCD consumes much less power than LED and gas-displays because it works on the principle of blocking light rather than emitting it.

Q:What differentiates passive matrix LCDs from active matrix LCDs?

A:An LCD is made with either a passive matrix or an active matrix display grid. An active matrix has a transistor located at each pixel intersection, requiring less current to control the luminance of a pixel. For this reason, the current in an active matrix display can be switched on and off more frequently, improving the screen refresh time (your mouse pointer will appear to move more smoothly across the screen, for example). The passive matrix LCD has a grid of conductors with pixels located at each intersection in the grid.

Q:What are the advantages of TFT LCD compared with CRT?

A:In a CRT monitor, a gun shoots electrons and general light by colliding polarized electrons on fluorescent glass. Therefore, CRT monitors basically operate with an analog RGB signal. A TFT LCD monitor is a device that displays an input image by operating a liquid crystal panel. The TFT has a fundamentally different structure than a CRT: Each cell has an active matrix structure and independent active elements. A TFT LCD has two glass panels and the space between them is filled with liquid crystal. When each cell is connected with electrodes and impressed with voltage, the molecular structure of the liquid crystal is altered and controls the amount of inlet lighting to display images. A TFT LCD has several advantages over a CRT, since it can be very thin and no flickering occurs because it does not use the scanning method.

Q:Why is vertical frequency of 60Hz optimal for an LCD monitor?

A:Unlike a CDT monitor, the TFT LCD panel has a fixed resolution. For example, an XGA monitor has 1024x3 (R, G, B) x 768 pixels and a higher resolution may not be available without additional software processing. The panel is designed to optimize the display for a 65MHz dot clock, one of the standards for XGA displays. Since the vertical/horizontal frequency for this dot clock is 60Hz/48kHz, the optimum frequency for this monitor is 60Hz.

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Philips 170C8 user manual What is a Liquid Crystal Display?, What are the advantages of TFT LCD compared with CRT?

170C8 specifications

The Philips 170C8 is a versatile and efficient 17-inch LCD monitor that blends performance with aesthetic appeal. Designed for both casual users and professionals, this monitor boasts a range of features that cater to diverse computing needs.

One of the standout characteristics of the Philips 170C8 is its outstanding image quality. With a resolution of 1280 x 1024 pixels and a 5:4 aspect ratio, it delivers crisp and clear visuals that make every detail pop. The monitor utilizes advanced TFT LCD technology, providing vibrant colors and sharp contrasts that enhance the viewing experience. The widescreen capability also allows for efficient multitasking, enabling users to open multiple applications side by side.

The monitor's brightness level of 250 cd/m² ensures that images remain bright and clear, even in well-lit environments. With a response time of 5 milliseconds, the Philips 170C8 minimizes motion blur, making it an excellent choice for gaming and fast-action video. This feature allows users to enjoy a smoother visual performance without ghosting, providing an immersive viewing experience whether for work or play.

Ergonomics is another significant aspect of the Philips 170C8. It comes equipped with multiple tilt adjustments, allowing users to find the most comfortable viewing angle. Additionally, its sleek design, with a thin bezel and a clean profile, fits seamlessly into any workspace, adding a modern touch to your setup.

The Philips 170C8 also incorporates energy-efficient technologies, making it an environmentally friendly choice. Its low power consumption ensures that users can save on energy bills while contributing to a reduction in carbon footprint. The monitor also complies with energy standards, such as Energy Star, verifying its commitment to sustainability.

For connectivity, the Philips 170C8 offers a range of options, including VGA and DVI-D ports, ensuring compatibility with various devices, including desktop computers and laptops. This extensive connectivity makes it easy for users to integrate the monitor into their existing setups without hassle.

In summary, the Philips 170C8 stands out as a powerful yet user-friendly monitor that meets the needs of both casual and professional users. With its high image quality, ergonomic design, and energy-efficient features, it is an excellent choice for anyone looking to enhance their computing experience. Whether used for office tasks, media consumption, or gaming, the Philips 170C8 delivers on performance and style.