S
p
DISPLAY Elektronik GmbH
LCD MODULE
DEM 16226 SYH-LY
Product
07.10.2008
ecification Version: 1.1.0
GENERAL SPECIFICATION
MODULE NO. :
DEM 16226 SYH-LY
CUSTOMER P/N
VERSION NO. CHANGE DESCRIPTION DATE
0 ORIGINAL VERSION 10.10.2005
1.1.0 CHANGE IC 07.10.2008
PREPARED BY: CHJ DATE: 07.10.2008
APPROVED BY: MH DATE: 07.10.2008
DEM 16226 SYH-LY Product Specification
CONTENTS
1. FUNCTIONS & FEATURES -----------------------------------------------------------------2
2. MECHANICAL SPECIFICATIONS --------------------------------------------------------2
3. EXTERNAL DIMENSIONS------------------------------------------------------------------2
4. BLOCK DIAGRAM -------------------------------------------------------------------------- 3
5. PIN ASSIGNMENT--------------------------------------------------------------------------- 3
6. PCB DRAWING------------------------------------------------------------------------------- 4
7. BACKLIGHT ELECTRICAL/OPTICAL SPECIFICATIONS--------------------------5
8. DISPLAY DATA RAM (DDRAM)----------------------------------------------------------5
9. MAXIMUM ABSOLUTE POWER RATINGS ------------------------------------------- 5
10. CONTROL AND DISPLAY COMMAND-------------------------------------------------6
11. LCM INITIALIZING BY INSTRUCTION------------------------------------------------10
12. STANDARD CHARACTER PATTERN---------------------------------------------------12
13. ELECTRICAL CHARACTERISTICS -----------------------------------------------------13
14. LCD MODULES HANDLING PERCAUTIONS---------------------------------------- 15
15. OTHERS ---------------------------------------------------------------------------------------15
Version: 1.1.0 PAGE: 1
DEM 16226 SYH-LY Product Specification
1.FUNCTIONS & FEATURES
z LCD-NAME:
MODULE LCD TECHNOLOGY Polarizer Mode
DEM 16226 SYH-LY STN Yellow/Green Transflective Positive Mode
z Viewing Direction : 6 o`clock
z Driving Scheme
z Backlight : LED (Yellow/Green Lightbox)
z Power Supply Voltage
z VLCD Adjustable For Best Contrast
z Display contents
z Internal Memory
: CGRAM (64 x 8 bits )
: DDRAM (80 x 8 bits for Digits)
z CGROM
z Interface : Easy Interface with a 4-bit or 8-bit MPU
: 1/16 Duty Cycle, 1/5 Bias
: 5 Volt (typ.)
: 4.5 Volt (typ.)
: 16 x 2 Characters (5 x 8 dots, Format: 208 Kinds)
: CGROM (10,080 bits )
: CGROM of the SPLC780D1-001A
2. MECHANICAL SPECIFICATIONS
z Module Size
z Character Font
z Character Size
z Character Pitch
z Dot Size
z Dot Pitch
z Dot Gap
: 65,5 x 36,7 x 12,5 mm (max.)
: 5 x 8 dots
: 2.45 x 4,67 mm
: 2,95 x 5,17 mm
: 0.45 x 0.54 mm
: 0.50 x 0.59 mm
: 0.05mm
3. EXTERNAL DIMENSIONS ( unit: mm)
Version: 1.1.0 PAGE: 2
DEM 16226 SYH-LY Product Specification
4. BLOCK DIAGRAM
DB0~DB7
E
R/W
RS
V0
VDD
VSS
L+
L-
5. PIN ASSIGNMENT
Pin No. Symbol
1 VSS Ground terminal of module.
2 VDD Supply terminal of module 5.0V
3 V0 Power Supply for liquid crystal drive
4 RS Register select RS=0: Instruction register; Rs=1: Data register
5 R/W Read or Write Select Signal
6 E Read/Write R/W=1: Read; R/W=0: Write
7 DB0
8 DB1
9 DB2
10 DB3
11 DB4
12 DB5
13 DB6
14 DB7
15 LED- (K)
16 LED+(A)
LCD
Controller
LSI
SPLC780D1
-001A
BACKLIGHT
Bi-directional data bus, data transfer is performed once, thru DB0 to
DB7, in the case of interface data length is 8-bits; and twice,
through DB4 to DB7 in the case of interface data length is 4-bits. Upper
four bits first then lower four bits.
Please also refer to 6.1 PCB drawing and description.
COM1~COM16
SEG1~SEG40
Control Signals
LCD PANEL
2 x 16 Characters
SEG41~SEG80
SEGMENT
DRIVER
Function
Version: 1.1.0 PAGE: 3
DEM 16226 SYH-LY Product Specification
8R7
6. PCB DRAWING AND DESCRIPTION
6.1 PCB Drawing
Note: In application module: R1 ~ R5 = 2.2 kΩ, Rosc = 91 kΩ
6-1-1.The polarity of the pin 15 and the pin 16 (Description)
Symbol
Symbol
State
J3,J5 J2, J4
J2,J4 Each solder-bridge Each open Each closed Anode Cathode
J3,J5 Each solder-bridge Each closed Each open Cathode Anode
Note: On application module, J3=J5= closed, J2=J4= open.
LED Polarity
Pin 15 Pin 16
6-1-2. The metal-bezel is set on ground when the J1 is closed .
Note: On application module, J1=0 Ohm.
6-1-3. The mouting holes are set to ground when the J7 is closed.
Note: On application module, J7=0 Ohm.
6-1-4.The LED resistor can be bridged when the J6 is closed.
Note: On application module, J6=open.
6-1-5.The R7 and the R8 are the LED resistor.
Note: On application module R7 = 10 Ω, R8 = open.
6.2 Example application
6-2-1. The LED resistor can be bridged as following:
6-2-2. The pin 15 is the Anode and the pin 16 is the Cathode as following:
J4
J5
6-2-3.The pin 15 is the Cathode and the pin 16 is the Anode as following:
J3
J2
J5
J4
J6
R
J2
Version: 1.1.0 PAGE: 4
DEM 16226 SYH-LY Product Specification
7. BACKLIGHT ELECTRICAL/OPTICAL SPECIFICATIONS
Item Symbol Min. Typ. Max. Unit
Forward Voltage Vf --- 5 --- V
Forward Current If --- 85 --- mA
Backlight Color Yellow Green
LCD Module with Yellow-Green LED-Lightbox.
ELECTRICAL RATINGS (Backlight component)
T a = 25°C
Item Symbol Condition Min Typ Max Unit
Forward Voltage VF IF=90mA 4.0 4.2 4.4 V
Reverse Current IR VR=10.0V --- 90 --- uA
Luminous Intensity
(Without LCD)
Peak wave length
Color Yellow-Green
Lv IF=90mA --- 160 --- cd/m2
λ p
IF=90mA
569 572 575 nm
8. DISPLAY DATA RAM (DDRAM)
9. MAXIMUM ABSOLUTE POWER RATINGS
Item Symbol Standard value Unit
Power supply voltage (1) VDD -0.3 ~ +7.0 V
Power supply voltage (2) V
Input voltage VIN -0.3 ~ VDD+0.3 V
Volt. For BL VLED1 4 ~ 4.5 V
Operating temperature Topr -20 ~ +70 °C
Storage temperature Tstg -30 ~ +80 °C
V
LCD
-15.0 ~ VDD+0.3 V
DD
Version: 1.1.0 PAGE: 5
DEM 16226 SYH-LY Product Specification
10. CONTROL AND DISPLAY COMMAND
Instruction
Clear
Display
Return
Home
Entry Mode
set
Display
ON/OFF
Control
Cursor or
Display shift
Function set 0 0 0 0 1 DL N F X X
Set CGRAM
address
Set CGRAM
address
Read busy
flag and
address
Write data to
RAM
Read data to
RAM
RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 0 0 0 0 0 0 0 0 1
0 0 0 0 0 0 0 0 1 X
0 0 0 0 0 0 0 1 I/D SH
0 0 0 0 0 0 1 D C B
0 0 0 0 0 1 S/C R/L X X
0 0 0 1 AC5 AC4 AC3 AC2 AC1 AC0
0 0 1 AC6 AC5 AC4 AC3 AC2 AC1 AC0
0 1 BF AC6 AC5 AC4 AC3 AC2 AC1 AC0
1 0 D7 D6 D5 D4 D3 D2 D1 D0
1 1 D7 D6 D5 D4 D3 D2 D1 D0
Instruction Code
Description
Instruction Code
Write “20H” to
DDRAM and set
DDRAM address to
“00H” from AC.
Set DDRAM
address to
“00H”from AC and
return cursor to its
original position if
shifted.
Assign cursor
moving direction
and enable the shift
of entire display.
Set display (D),
cursor(C), and
blinking of cursor
(B) on/off control
bit.
Set cursor moving
and display shift
control bit, and the
direction without
changing of DRAM
data.
Set interface data
length
(DL:4-bit/8-bit),
numbers of display
line
(N:1-line/2-line,
display font type
5 x 8 dots;
(F:0
F:1 5 x 11 dots
Set CGRAM
address in address
counter.
Set DDRAM
address in address
counter.
Whether during
internal operation or
not can be known
by reading BF.
The contents of
address counter can
also be read.
Write data into
internal RAM
(DDRAM/CGRAM
).
Read data into
internal RAM
(DDRAM/CGRAM
).
Execution
time (fosc=
270kHz)
1.52 ms
1.52ms
38us
38us
38us
38us
)
38us
38us
38us
38us
NOTE: when you make an MPU program with checki n g the b usy fla g (DB7), it must be necessary 1/2F osc for executing
the next instruction by the falling edge of the ‘E’ signal after the Busy Flay (DB7) goes to “0”
Version: 1.1.0 PAGE: 6
DEM 16226 SYH-LY Product Specification
Outline
To overcome the speed difference between the internal clock of SPLC780D1 and the MPU clock, SPLC780D1 performs
internal operations by storing control information to IR or DR. The internal operation is determined accor ding to the signal
from MPU, composed of read/write and data bus (refer to table 5.)
Instruction can be divided largely into four kinds:
(1) SPLC780D1 function set instructions (set display methods, set data length, etc.)
(2) Address set instructions to internal RAM.
(3) Data transfer instructions with internal RAM.
(4) Others.
The address of the internal RAM is automatically increased or decreased by 1.
*NOTE: During internal operation, busy flag (DB7) is read “1”. Busy flag check must be prece ded by the next instruct ion.
When you make an MPU program with checking th e busy flag (D B7), it must be necessary 1/2 fosc for exe cuting t he next
instruction by falling edge of the “E” signal after the busy flag (DB7) goes to “0”.
Contents
1) Clear display
RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 0 0 0 0 0 0 0 0 1
Clear all the display data by writing “20H” (space code) to all DRAM address, and set the DRAM addresses to “00H” in
the AC (address counter). Return cursor to original status, namely, bring the cursor to the left edge on first line of the
display. Make entry mode increment (I/D=“1”).
2) Return home
RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 0 0 0 0 0 0 0 1 X
Return home is the cursor return home instruction. Set DRAM address to “00H” in the address counter. Return cursor to its
original site and return display to its original status, if shifted. Contents of DDRAM does not change.
3) Entry mode set
RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 0 0 0 0 0 0 1 I/D SH
Set the moving direction of cursor and display.
I/D: increment/decrement of DDRAM address (cursor or blink).
When I/D=”1”, cursor/blink moves to right and DDRAM address is increased by 1.
When I/D=”0”, cursor/blink moves to left and DDRAM address is increased by 1.
CGRAM operates the same as DDRAM, when reading from or writing to CGRAM.
SH: shift of entire display
When DDRAM is in read (CGRAM read/write) operation or SH=”0”, shift of entire display is not performed.
If SH=”1” and in DDRAM write operation, shift of entire display is performed according to I/D value (I/D=”1”: shift left,
I/D=”0”: shift right).
Version: 1.1.0 PAGE: 7
DEM 16226 SYH-LY Product Specification
4) Display ON/OFF control
RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 0 0 0 0 0 1 D C B
Control display/cursor/blink ON/OFF 1-bit register.
D: Display ON/OFF control bit
When D=”1”, entire display is turned on.
When D=”0’, display is turned off, but display data remains in DDRAM.
C: cursor or ON/OFF control bit
When C=”1”, cursor is turned on.
When C=”0”, cursor disappears in current display, but I/D register retains its data.
B: cursor blink ON/OFF control bit
When B=”1”, cursor blink is on, which performs alternately between all the “1” data and display characters at the cursor
position. When B=”0”, blink is off
5) Cursor or display shift
RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 0 0 0 0 1 S/C R/L X X
without writing or reading the display data, Shifting right/left cursor positio n or dis play
This instruction is used to correct or search display data. (Refer to Table 4)
During 2-line mode display, cursor moves to the 2nd line after the 40th digit of the 1st line.
Note tat display shift is performed simultaneously in all the lines.
When displayed data is shifted repeatedly, each line shifts individually.
When display shift is performed, the contents of the address counter are not changed.
Table 4. shift patterns according to S/C and R/L bits
S/C R/L operation
0 0 Shift cursor to the left, AC is decreased by 1
0 1 Shift cursor to the right, AC is decreased by 2
1 0 Shift all the display to the left, cursor moves according to the display
1 1 Shift all the display to the right, cursor moves according to the display
6) Function set
RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 0 0 0 1 DL N F X X
DL: Interface data length control bit
When DL=”1”, it means 8-bit bus mode with MPU.
When DL=”0”, it means 4-bit bus mode with MPU. So to speak, DL is a signal to select 8-bit or 4-bit bus mode.
When 4- bit bus mode, it needs to transfer 4-bit data in two parts.
N: display line number control bit
When N=”1”, 2-line display mode is set.
When N=”0”, 1-line display mode is set.
F: display font type control bit
When F=”0”, 5 x 8 dots format display mode.
When F=”1”, 5 x 11 dots format display mode.
Version: 1.1.0 PAGE: 8
DEM 16226 SYH-LY Product Specification
7) Set CGRAM address
RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 0 0 1 AC5 AC4 AC3 AC2 AC1 AC0
Set CGRAM address to AC. This instruction makes CGRAM data available from MPU.
8) Set DDRAM address
RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 0 1 AC6 AC5 AC4 AC3 AC2 AC1 AC0
Set DDRAM address to AC. This instruction makes DDRAM data available from MPU. In 1-line display mode
(N=0,NW=0), DDRAM address is from “00H” to “ 4FH”. In 2-line display mode (N =1,NW=0), DDRAM address in the 1st
line is from “00H” to “27H”, and DDRAM address in the 2nd line is from “40H” to “67H”.
9) Read busy flag & address
RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 0 BF AC6 AC5 AC4 AC3 AC2 AC1 AC0
This instruction shows whether SPLC780D1 is in internal operation or not. If the resultant BF is “High”, it means the
internal operation is in progress and y our have to wa it until BF t o “low”. and then the next instruction c an be perform ed. In
this instruction your can also read the value of the address counter can also be read.
10) Write data to RAM
RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
1 0 D7 D6 D5 D4 D3 D2 D1 D0
Write binary 8-bit data to DRAM /CRAM/SEAGRAM. The selection of RAM from DRAM, CRAM or SEAGRAM, is set
by the previous address set instruction: DDRAM address set, CGRAM address set, SEAGRAM address set, RAM set
instruction can also determine the AC direction to RAM.
After write operation, the address is automatically incre a s ed/ decre ased by 1, according to the entry m ode.
11) Read data from RAM
RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
1 1 D7 D6 D5 D4 D3 D2 D1 D0
Read binary 8-bit data from DDRAM/CRAM.
The selection of RAM is set by the previous address s et instruction. If the a ddress set instructi on of RAM is not performed
before this instruction, the data that is read first is invalid, because the direction of AC is not determined. If the RAM d ata
is read several times without RAM address set instruction before read operation, the correct RAM data from the second,
but the first data would be incorrect, as there is not time to transfer RAM data. In case of DDRAM read operation, cursor
shift instruction plays the same role as DDRAM address set instruction; it also transfers RAM data to the output data
register.
After read operation the address counter is automatically increased/decreased by 1 according to the entry mode. After
CGRAM read operation, display shift may not be executed correctly.
* In case of RAM write operation, AC is increased/decreased by 1 like read operation. In this time, AC indicates the next
address position, but the previous data can only by the read instruction.
Version: 1.1.0 PAGE: 9
DEM 16226 SYH-LY Product Specification
11. LCM INITIALIZING BY INSTRUCTION
-1 8-bit interface mode
11
Power on
Wait for more than 30ms Condition: fosc=270khz
after VDD rises to 4.5v
0 1-line mode
Function set
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 0 0 0 1 1 N F X X 0 5 x 8 font
Wait for more than 39us
0 display off
Display on/off control
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 0 0 0 0 0 1 D C B 0 cursor off
Wait for more than 39us 0 blink off
Display clear
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 0 0 0 0 0 0 0 0 1
Wait for more than 1.53ms
0 decrement mode
Entry mode set
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 0 0 0 0 0 0 1 I/D SH
0 entire shift off
Initialization end
N
F
D
1 2-line mode
1 5 x 11 font
1 display on
C
1 cursor on
B
I/D
SH
1 blink on
1 increment mode
1 entire shift on
Version: 1.1.0 PAGE: 10
DEM 16226 SYH-LY Product Specification
1 1-2 4-bit interface mode
0 4-bit mode
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 0 1-line mode
0 0 0 0 1 DL X X X X
0 0 0 0 1 0 X X X X 0 5 x 8 font
0 0 N F X X X X X X
Wait for more than 39us
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 0 0 0 0 0 X X X X 0 cursor off
0 0 1 D C B X X X X
0 blink off
Wait for more than 39us
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 0 0 0 0 0 X X X X
0 0 0 0 0 1 X X X X
Wait for more than 1.53ms
Entry mode set 0 decrement mode
RS RW DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0 0 0 0 0 0 X X X X 0 entire shift off
0 0 0 1 I/D SH X X X X
Initialization end
Wait for more than 30ms after V
Wait for more than 40ms after VDD rises to 2.7v
Power on
rises to 4.5v
DD
Function set
Display on/off control 0 display off
Display clear
Condition: fosc=270khz
DL
N
F
D
C
B
I/D
SH
1 8-bit mode
1 2-line mode
1 5 x 11 font
1 display on
1 cursor on
1 blink on
1 increment mode
1 entire shift on
Version: 1.1.0 PAGE: 11
DEM 16226 SYH-LY Product Specification
12. STANDARD CHARACTER PATTERN (SPLC0780D1)
Upper(4bit)
Lowerr(4bit)
LLLL
LLLL
CG RAM
(1)
LLLH LLHL LLHH LHLL LHLH LHHL LHHH HLLL HLLH HLHL HLHH HHLL HHLH HHHL HHHH
LLLH
LLHL
LLHH
LHLL
LHLH
LHHL
LHHH
(2)
(3)
(4)
(5)
(6)
(7)
(8)
HLLL
HLLH
HLHL
HLHH
HHLL
HHLH
HHHL
(1)
(2)
(3)
(4)
(5)
(6)
(7)
HHHH
Version: 1.1.0 PAGE: 12
(8)
DEM 16226 SYH-LY Product Specification
13. ELECTRICAL CHARACTERISTICS
13-1-1 DC Characteristics (V
Item Symbol
Operating Voltage V
Supply Current I
Input Voltage (1)
(except OSC1)
Input Voltage (2)
(OSC1)
Output Voltage (1)
(DB0 to DB7)
Output Voltage (2)
(except DB0 to DB7)
Internal Clock
(external Rf)
V
V
V
V
V
V
V
V
f
OSC1
= 4.5V ~ 5.5V, Ta = -10 ~ +60 °C)
DD
DD
DD
IL1
IH1
IL2
IH2
OL1
OH1
OL2
OH2
Standard Value
MIN TYP MAX
4.5 5 5.5 ------- V
---- 0.55 0.8
VDD=5V,fosc=270kHz
-0.3 -- 0.6 --------
2.5 -- V
DD
-0.2 -- 1.0 ---------
VDD-1.0
-- V
DD
--- ---- 0.4 IOL=0.1mA (Pins DB0-DB7)
2.4 --- VDD IOH=-0.1mA (Pins DB0-DB7)
------ ---
0.9VDD
--- VDD I
0.1VDD
190 270 350
Test
Condition
---------
---------
IOL=40uA
=-40uA
OH
Rf = 91k ± 2%
=5V)
(V
DD
Unit
mA
V
V
V
V
kHz
External Clock
LCD Driving Voltage
f
OSC
125 250 350 ---- kHz
Duty 45 50 55 ---- %
V
t
R,tF
LCD
--- --- 0.2 ---- us
3.0 --- 8.0
VDD-V5 (1/5, 1/4 Bias)
V
Version: 1.1.0 PAGE: 13
DEM 16226 SYH-LY Product Specification
13-2 AC Characteristics (VDD = 4.5V ~ 5.5V, Ta = -10 ~ +60°C)
13-2-1 Write mode (writing data from MPU to LCD-module) valid for 4,5Volt…5,5Volt:
Characteristic Symbol Min Type Max Unit Test PIN
E Cycle Time t
E Rise Time t
E Fall Time t
E Pulse width (High, Low) t
R/W and RS Set-up Time t
R/W and RS Hold Time t
Data Set-up Time t
Data Hold Time t
C
R
F
W
SU1
H1
SU2
H2
400 --- --- ns E
--- --- 25 ns E
--- --- 25 ns E
150
--- --- ns E
30 --- --- ns R/W,RS
10 --- --- ns R/W,RS
40 --- --- ns DB0~DB7
10 --- --- ns DB0~DB7
RS
R/W
E
DB0~DB7
VIH1
VIL1
tSU1
VIL1 VIL1
tL
tW
VIH1
VIL1
VIH1 VIH1
VIL1
VIH1
tSU2
Valid Data
tC
13-2-2 Read mode (reading data from LCD-module to MPU )
Characteristic Symbol Min Type Max Unit Te st PIN
E Cycle Time t
E Rise Time t
E Fall Time t
E Pulse width (High, Low) t
R/W and RS Set-up Time t
R/W and RS Hold Time t
Data Output Delay Time t
Data Hold Time t
C
R
F
W
SU
H
D
DH2
400 --- --- ns E
--- --- 25 ns E
--- --- 25 ns E
150 --- --- ns E
30 --- --- ns R/W,RS
10 --- --- ns R/W,RS
--- --- 100 ns DB0~DB7
5 --- --- ns DB0~DB7
tH1
tH1
tF
VIL1 VIL1
tH2
VIL1
V
RS
R/W
E
DB0~DB7
Version: 1.1.0 PAGE: 14
IH1
V
IL1
t
SU
V
IH1
t
W
V
IH1
V
IL1
t
r
V
IH1
V
IL1
Valid Data
t
H
V
IH1
t
H
t
F
V
IH1
V
IL1
t
DH
V
IH1
V
IL1
t
C
V
IL1
DEM 16226 SYH-LY Product Specification
14. LCD MODULES HANDLING PRECAUTIONS
Please remove the protection film on LCD before using. .
The display panel is made of glass. Do not subject it to a mechanical shock by dropping it from a high place, etc.
If the display panel is damaged and the liquid crystal substance ins ide it leaks out, do not get any in your m outh. If the
substance come into contact with your skin or clothes promptly wash it off using soap and water.
Do not apply excessive force to the display surface or the adjoining areas since t his may cause the color tone to vary.
The polarizer covering the display surface of the LCD module is soft and easily scratched. Handle this polarize
carefully.
To prevent destruction of the elements by static electricity, be careful to maintain an optimum work environment.
-Be sure to ground the body when handling the LCD module.
-Tools required for assembly, such as soldering irons, must be properly grounded.
-To reduce the amount of static electricity generated, do not conduct assembly and other work under dry conditions.
-The LCD module is coated with a film to protect the display surface. Exercise care when peeling off this protective
film since static electricity may be generated.
Storage precautions
When storing the LCD modules, avoid exposure to direct sunlight or to the light of fluorescent lamps. Keep the
modules in bags designed to prevent static electricity charging under low temperature / normal humidity conditions
(avoid high temperature / high humidity and low temperatures below 0°C).Whenever possible, the LCD modules
should be stored in the same conditions in which they were shipped from our company.
15. OTHERS
Liquid crystals solidify at low temperature (below the storage temperature range) leading to defective orient ation of
liquid crystal or the generation of air bubbles (black or white). Air bubbles may also be generated if the module is
subjected to a strong shock at a low temperature.
If the LCD modules have been operating for a long time showing the same display patterns m ay remain on the screen
as ghost images and a slight contrast irregularity may also appear. Abnormal operating status can be resumed to be
normal condition by suspending use for some time. It should be noted that this phenomena does not adversely affect
performance reliability.
To minimize the performance degradation of the LCD modules resulting from caused by static electricity, etc.
exercise care to avoid holding the following sections when handling the modules:
- Exposed area of the printed circuit board
- Terminal electrode sections
Version: 1.1.0 PAGE: 15
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