Compatibility With Other Peripherals; Lcd Panel Technology - Philips 190V User Manual

FAQs (Frequently Asked Questions)
file:///F|/CD/lcd/manual/ENGLISH/190V/safety/saf_faq.htm（第 4／6 页）2009-2-27 17:53:04

Compatibility with other Peripherals

Q:
Are Philips LCD monitors Plug-and-Play?
Yes, the monitors are Plug-and-Play compatible with Windows® 95, 98, 2000, XP and Vista.
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LCD Panel Technology

Q: What is a Liquid Crystal Display?
A Liquid Crystal Display (LCD) is an optical device that is commonly used to display ASCII characters
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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?
An LCD is made with either a passive matrix or an active matrix display grid. An active matrix has a
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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?
In a CRT monitor, a gun shoots electrons and general light by colliding polarized electrons on fluorescent
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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
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