HANDLING INSTRUCTIONS
1. Operate the LCD unit within the allowable
ranges of temperature and power supply volt-
age. Avoid operating the LCD unit in high hu-
midity. Avoid operating the LCD unit for
extended periods under direct sunlight.
2. Mechanical shock and pressure on the glass
LCD panel should be avoided. Care must be
taken to insure that no torsional or compressive
forces are applied to the LCD unit when it is
mounted. If leakage of the liquid crystal material
should occur, all contact with the material, par-
ticularly accidental ingestion, must be avoided.
If the body or clothing become contaminated by
the liquid crystal material, wash thoroughly with
water and soap.
3. The reflector and polarizers attached to the LCD
unit are made of soft materials. Care must be
taken not to scratch these materials. To clean
the display, use a soft, dry cloth. Do not use
organic solvents or water. If dirt can not be
removed by this method, a small amount of
petroleum benzine may be used.
4. The LCD unit uses CMOS LSI’s. Precautions
must be taken to protect the unit from electro-
static charges.
5. Do not apply the power supply voltages to the
LCD unit while the input signal terminals are
open. Also, it is better if the input signal and LCD
unit power supply voltages are switched on and
off simultaneously.
6. The LCD unit should be stored in its original
packing case at a temperature of 0 to 35
°
C and
at a relative humidity of 60% or less. The LCD
unit should be stored in a dark place, not ex-
posed to direct sunlight or fluorescent lamps.
7. The following precautions should be taken when
mounting the LCD unit.
a. The LCD unit may be mounted on either the
inside or outside of a cabinet, as shown in Figure
12. To determine the optimum mounting angle,
refer to the viewing angle range in the device
specification for each model.
b. An acrylic sheet, or the like, may be used to
protect the LCD panel. A spacing of 0.5 mm to
1.0 mm should be used between the protective
plate and the LCD panel. (See Figure 13.)
To prevent stress on the LCD panel, the unit
should be mounted with a nominal height accu-
racy of
±
0.1 mm.
c. An anti-glare (anti-reflection) sheet may be used
in place of the protective acrylic sheet. The
mounting considerations will be the same.
LCD27-35
LCD UNIT
LCD UNIT
(A) Inside Mount
(B) Outside Mount
Figure 12. Mounting Diagrams
LCD27-36
LCD UNIT
Transparent
Protective
Sheet
0.5 - 1.0 mm
Spacing
Mounting
Frame
Figure 13. Sample Design
Dot-Matrix LCD Units
28
Display Unit User’s Manual
