Why is there no flicker on an LCD Monitor?

FAQs (Frequently Asked Questions)

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.

Q:What kind of wide-angle technology is available? How does it work?

A:The TFT LCD panel is an element that controls/displays the inlet of a backlight using the dual-refraction of a liquid crystal. Using the property that the projection of inlet light refracts toward the major axis of the liquid element, it controls the direction of inlet light and displays it. Since the refraction ratio of inlet light on liquid crystal varies with the inlet angle of the light, the viewing angle of a TFT is much narrower than that of a CDT. Usually, the viewing angle refers to the point where the contrast ration is 10. Many ways to widen the viewing angle are currently being developed and the most common approach is to use a wide viewing angle film, which widens the viewing angle by varying the refraction ratio. IPS (In Plane Switching) or MVA (Multi Vertical Aligned) is also used to give a wider viewing angle.

Q:Why is there no flicker on an LCD Monitor?

A:Technically speaking, LCDs do flicker, but the cause of the phenomenon is different from that of a CRT monitor -- and it has no impact of the ease of viewing. Flickering in an LCD monitor relates to usually undetectable luminance caused by the difference between positive and negative voltage. On the other hand, CRT flickering that can irritate the human eye occurs when the on/off action of the fluorescent object becomes visible. Since the reaction speed of liquid crystal in an LCD panel is much slower, this troublesome form of flickering is not present in an LCD display.

Q:Why is an LCD monitor virtually free of Electro Magnetic Interference?

A:Unlike a CRT, an LCD monitor does not have key parts that generate Electro Magnetic Interference, especially magnetic fields. Also, since an LCD display utilizes relatively low power, its power supply is extremely quiet.

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170B6 specifications

The Philips 170B6 is a remarkable entry in the world of display technology, garnering attention for its blend of functionality, performance, and eco-friendliness. This 17-inch LCD monitor is designed for users seeking reliable and sharp image quality, making it suitable for both professional and personal use.

One of the standout features of the Philips 170B6 is its Crystal Clear technology. This technology enhances image clarity and detail, ensuring that images appear sharp, vibrant, and true to life. With a maximum resolution of 1280 x 1024 pixels, the monitor delivers a crisp, clear viewing experience ideal for tasks such as graphic design, document editing, and everyday browsing.

The monitor features a quick response time of 8 milliseconds, significantly reducing the occurrence of ghosting and motion blur in fast-moving images. This makes it an excellent choice for multimedia applications and gaming, allowing users to enjoy smooth and fluid visuals without compromising on quality.

Another notable characteristic of the Philips 170B6 is its versatility in connectivity. The monitor comes equipped with multiple input options, including VGA and DVI, which enable seamless integration with various devices such as computers and laptops. This flexibility ensures that users can connect the monitor to their preferred devices without hassle.

Ergonomics plays a significant role in the design of the Philips 170B6. The monitor offers height adjustment, tilt, and swivel capabilities, allowing users to customize their viewing angle and position for optimal comfort. This is particularly useful for extended work sessions where adjustability can reduce strain on the neck and back.

Additionally, the Philips 170B6 embraces eco-friendly practices. It is designed to meet Energy Star standards, which helps lower power consumption and costs while also reducing the environmental impact of electronic waste. The monitor also features a low power consumption mode, ensuring that it operates efficiently even when idle.

In summary, the Philips 170B6 is a compelling monitor that combines innovative technology with user-focused design. With its Crystal Clear display, quick response time, versatile connectivity, and ergonomic features, it stands out as a reliable choice for those looking for an efficient and high-performance display solution. Furthermore, its eco-friendly attributes make it a responsible choice for consumers conscious of their environmental footprint.