Philips 221T1SB/05 用户手册

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9.  Pixel policy
Philips strives to deliver the highest quality 
products. We use some of the industry's 
most advanced manufacturing processes and 
practice stringent quality control. However, pixel 
or sub pixel defects on the TFT LCD panels 
used in flat panel monitors are sometimes 
unavoidable. No manufacturer can guarantee 
that all panels will be free from pixel defects, 
but Philips guarantees that any monitor with 
an unacceptable number of defects will be 
repaired or replaced under warranty. This notice 
explains the different types of pixel defects and 
defines acceptable defect levels for each type. In 
order to qualify for repair or replacement under 
warranty, the number of pixel defects on a TFT 
LCD panel must exceed these acceptable levels. 
For example, no more than 0.0004% of the sub 
pixels on a 19" XGA monitor may be defective. 
Furthermore, Philips sets even higher quality 
standards for certain types or combinations 
of pixel defects that are more noticeable than 
others. This policy is valid worldwide.
Pixels and Sub pixels 
A pixel, or picture element, is composed of 
three sub pixels in the primary colors of red, 
green and blue. Many pixels together form an 
image. When all sub pixels of a pixel are lit, 
the three colored sub pixels together appear 
as a single white pixel. When all are dark, the 
three colored sub pixels together appear as a 
single black pixel. Other combinations of lit and 
dark sub pixels appear as single pixels of other 
colors.
Set Password
 To change the password.
 
 The default password is 0000.
 
 Input a 4-digit password. Be sure to remember 
 
this number!
 Re-enter new password for confirm.
 
Clean All
 To reset all parental control settings to the 
 
default values.
 A confirm diagram displays before execute.
 
OAD update: 
If using digital broadcast, your TV would 
automatically receive software updates. When 
it is active, you will receive a message on your 
screen asking you to update your software. Just 
follow the instruction on the message to make 
your choice and complete the settings.