FAQs (Frequently Asked Questions)

RETURN TO TOP OF THE PAGE

LCD Panel Technology

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?

file:///F/lcd/manual/ENGLISH/150S8/safety/saf_faq.htm（第 6／8 页）2007-6-28 11:44:27

Page 8 Page 10
Page 9
Image 9
Philips 150S8 user manual LCD Panel Technology, What is a Liquid Crystal Display?
Page 8 Page 10

150S8 specifications

The Philips 150S8 monitor is a reliable and versatile display option that caters to both professional and everyday users, merging practical performance with sleek design. Featuring a 15-inch LCD screen, the 150S8 boasts a resolution of 1024 x 768 pixels, which ensures crisp image quality that is suitable for various applications, from office tasks to casual use.

One of the standout features of the Philips 150S8 is its excellent color accuracy and vibrant visuals. The monitor leverages advanced display technologies that enhance the viewing experience by delivering brighter, sharper images with improved contrast ratios. This is particularly beneficial for graphic design, photo editing, and other visual media work where color fidelity is paramount.

The Philips 150S8 is equipped with a fast response time, reducing motion blur during quick transitions and making it a good choice for video playback and gaming, even at the moderate size. With an aspect ratio of 4:3, users get a traditional widescreen experience, making it easy to manage multiple windows and applications simultaneously.

Moreover, ergonomics play an important role in the design of the Philips 150S8. The monitor features adjustable settings for height, swivel, and tilt, allowing users to customize their setup for optimal viewing comfort. This focus on user wellness extends to its low blue light technology, which effectively reduces eye strain during prolonged usage sessions, an essential consideration for modern work environments.

Connectivity is also a strong point for the Philips 150S8. It offers a range of input options, including VGA and DVI ports, ensuring compatibility with a variety of devices. This flexibility allows users to connect the monitor seamlessly to their computers or laptops without sacrificing performance.

In terms of energy efficiency, the Philips 150S8 is designed with sustainability in mind. It conforms to various environmental standards, contributing to reduced power consumption, which is an increasingly important factor for eco-conscious consumers.

Overall, the Philips 150S8 monitor combines functionality, user-friendly features, and modern technology, making it an excellent addition to any workspace or home office environment. Its balance of performance and ergonomics ensures that it can meet the demands of a wide range of users without compromising on quality.
Top Page Image Contents