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3284PS 2711 - SX21V001-Z4 - 3
June 29, '99
11-2/3
11.3 POWER ON SEQUENCE
Input signals should not be applied to LCD module before power supply voltage is applied and
reaches to specified voltage (3.3
±
0.15V).
If the above sequence is not kept, C-MOS LSIs of LCD module may be damaged due to latch up
phenomenon.
11.4 HANDLING PRECAUTIONS
(1) Since the polarizer on the top, and the aluminum plate on the bottom tend to be easily damaged,
they should be handled w ith full care so as not to get them touched, pushed or rubbed by a piece
on glass, tw eezers and anything else w hich are harder than a pencil lead 3H.
(2) As the adhesives used for adhering upper/lower polarizers and aluminum plate are made of
organic substances which will be deteriorated by a chemical reaction w ith such chemicals as
acetone, tuluene, ethanole and isopropylalcohol. The following solvents are recommended for
use : Normal hexane
Please contact us w hen it is necessary for you to use chemicals other than the above.
(3) Lightly w ipe to clean the dirty surface w ith absorbent cotton or other soft material like chamois,
soaked in the recommended chemicals w ithout scrubbing it hardly.
Always w ipe the surface horizontally or vertically. Never give a wipe in a circle. To prevent
the display surface from damage and keep the appearance in good state, it is sufficient, in general,
to wipe it with absorbent cotton.
(4) Immediately w ipe off saliva or w ater drop attached on the display area because it may cause
deformation or faded color.
(5) Fogy dew deposited on the surface may cause a damage, stain or dirt to the polarizer.
When you need to take out the LCD module from some place at low temperature for test, etc.
It is required to be w armed them up to be temperature higher than room temperature before taking
them out.
(6) Touching the display area or I/F pins w ith bare hands or contaminating them are prohibited,
because the stain on the display area and poor insulation betw een terminals are often caused by
being touched with bare hands.
(Some cosmetics are detrimental to polarizers.)
(7) In general, the glass is fragile so that it, especially on its periphery, tends to be cracked or
chipped in handling. Please do not give the LCD module sharp shocks caused by falling etc.
(8) Maximum pressure to the surface must be less than 1.96
×
10
4
Pa (0.2kgf/cm
2
).
And if the pressure area is less than 1cm
2
, maximum pressure must be less than 1.96N (0.2kgf).
(9) Since the metal width is narrow on these locations (see page 9-1/3), please be careful w ith
handling.
Displays,
Hitachi, Ltd.
Sh.
No.
Page
Date