Lcd Panel Technology - Philips 170T4 User Manual

FAQs (Frequently Asked Questions)
the PC98/99 platforms.
Q:
What are S-VIDEO Signals?
A:
These are 2 separate Y/C video signals from the S-VIDEO and Hi-8 recording standards.
The luminance signals Y (black and white) and chrominance signals C (colour) are recorded
separately on the tape. This provides a better picture quality than is achieved with standard
video (VHS and 8 mm) where the Y/C signals are combined to provide only one video signal.

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:
How are LCDs made?
A:
LCDs are created from two glass plates separated from each other at a distance of a few
microns. The plates are filled with liquid crystal and then sealed together. The top plate is
colored with an RGB pattern to make the color filter. Polarizers are then glued to both plates.
This combination is sometimes called 'glass' or 'cell.' The LCD cell is assembled into a
'module' by adding the backlight, driver electronics and frame.
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