Displaytech Ltd
LCD MODULE 64240B SERIES Version : 1.2 P 1 of 30
PRODUCT SPECIFICATIONS
PHYSICAL DATA
EXTERNAL DIMENSIONS
BLOCK DIAGRAM
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
OPERATING PRINCIPLES METHODS
ELECTRO-OPTICAL CHARACTERISTICS
INTERFACE PIN CONNECTIONS
CIRCUIT DIAGRAM
RELIABILITY
QUALITY GUARANTEE
INSPECTION CRITERIA
PRECAUTIONS FOR USING LCD MODULES
USING LCD MODULES
REVISION RECORD
Contents in this document are subject to change without notice. No part of this document may be
reproduced or transmitted in
any form or by any means, electronic or mechanical, for any purpose,
without the express written permission of Displaytech Ltd.
16 May 2006
Displaytech Ltd
LCD MODULE 64240B SERIES Version : 1.2 P 2 of 30
PHYSICAL DATA
Item Contents Unit
LCD type STN / FSTN ---
LCD duty 1/64 ---
LCD bias 1/9 ---
Viewing direction 6 / 12 o’clock
Module size (WHT) 180 65 11.0 MAX (14.0 MAX W/LED BACKLIGHT) mm
Viewing area (WH) 132.6 39 mm
Number of dots 240 64 dots
Dot size (WH) 0.48 0.48 mm
Dot pitch (WH) 0.53 0.53 mm
EXTERNAL DIMENSIONS
BLOCK DIAGRAM
Displaytech Ltd
LCD MODULE 64240B SERIES Version : 1.2 P 3 of 30
ABSOLUTE MAXIMUM RATINGS ( Ta = 25°C )
Parameter Symbol Min Max Unit
Supply voltage for logic VDD -0.3 7.0 V
Supply voltage for LCD VDD - VO -0.3 28 V
Input voltage VI -0.3 VDD+0.3 V
Normal operating temperature TOP 0 50 °C
Normal storage temperature TST -10 60 °C
Wide operating / storage
temperature (except FSTN) TOP / TST -30 (Note 1) 80 C
Wide operating / storage
temperature (FSTN) TOP / TST -30 (Note 1) 70 C
Note1: Requires use of external drive voltage for temperature down to –30C. Internal drive voltage can operate down to –20C.
ELECTRICAL CHARACTERISTICS ( VDD = +5V10% , VSS = 0V, Ta = 25°C )
DC Characteristics
Parameter Symbol Condition Min Typ Max Unit
Supply voltage for logic VDD --- 4.5 5.0 5.5 V
Supply current for logic IDD --- --- 22 26 mA
Operating voltage for LCD VDD - VO 25°C 12 12.7 13.4 V
Input voltage ' H ' level VIH --- VDD - 2.2 --- VDD V
Input voltage ' L ' level VIL --- 0 --- 0.8 V
Backlight operating information (Ta = 25°C )
Supply voltage VF (V) Supply current IF (mA)
LED Backlight Min Typ Max Min Typ Max
Side lit backlight Y/G (-2) --- 4.2 4.6 --- 300 500
White (-3LP) --- 3.4 3.5 --- 40 50
Blue (-4LP) --- 3.4 3.5 --- 40 50
Green (-5LP) --- 3.4 3.5 --- 40 50
Amber (-6LP) --- 1.8 1.9 --- 40 50
EL Enable voltage EON (VAC) EL frequency LF (Hz)
EL Backlight Min Typ Max Min Typ Max
EL (B) --- 100 150 --- 400 1000
AC Characteristics
AC Characteristics (1)Parameter Symbol Min Max Unit
Operating frequency fSCP --- 2.75 MHz
SCP pulse width tCWH, tCWL 150 --- ns
SCP rise/fall time tr, tf--- 30 ns
LP set up time tLSU 150 290 ns
LP hold time tLHD 5 40 ns
Data set up time tDSU 170 --- ns
Data hold time tDHD 80 --- ns
FR delay time td0 90 ns
CDATA set up time tCSU 450 850 ns
CDATA hold time tCHD 450 950 ns
Displaytech Ltd
LCD MODULE 64240B SERIES Version : 1.2 P 4 of 30
AC Characteristics (2)
Parameter Symbol Min Max Unit
C/D set up time tCDS 100 --- ns
C/D hold time tCDH 10 --- ns
CE, RD, WR pulse width tCE, tRD, tWR 80 --- ns
Data set up time tDS 80 --- ns
Data hold time tDH 40 --- ns
Access time tACC --- 150 ns
Output hold time tOH 10 50 ns
Displaytech Ltd
LCD MODULE 64240B SERIES Version : 1.2 P 5 of 30
OPERATING PRINCIPLES METHODS
Flowchart of Communications with MPU
Status Read
Before sending data (Read/Write) command, it is necessary to check the status.
Status check
Status of T6963C can be read from data lines.
RD L
WR H
CE L
C/D H
D0-D7 Status word
T6963C status word format is following.
MSB LSB
STA7
D7 STA6
D6 STA5
D5 STA4
D4 STA3
D3 STA2
D2 STA1
D1 STA0
D0
STA0 Check capability of command execution 0 : Disable
1 : Enable
STA1 Check capability of data read/write 0 : Disable
1 : Enable
STA2 Check capability of auto mode data read 0 : Disable
1 : Enable
STA3 Check capability of auto mode data write 0 : Disable
1 : Enable
STA4 Not use
STA5 Check capability of controller operation 0 : Disable
1 : Enable
STA6 Error flag. Using screen peek/copy command 0 : No error
1 : Error
STA7 Check the condition blink 0 : Display off
1 : Normal display
Note 1 : It is necessary to check STA0 and STA1 at the same time. The error is happened by sending data at executing command.
Note 2 : The status check will be enough to check STA0/STA1.
Note 3 : STA2/STA3 are valid in auto mode STA0/STA1 are invalid.
Status checking flow
Note 4 : It is impossible to save status check in the case of command of MSB0. To have the delay t
ime cannot be save status
check. The interrupt of hardware is happened at the end of lines. If command of MSB0 is sent in this period, the command
executing is waited. The state of waiting doesn’t be known without to check status. The sending next command
or data is
disregarded or rewrites data of waiting command.
STATUS
RETURN
STA0=1
STA1=1
YES
NO
AUTO MODE
STATUS
RETURN
STA2=1
(STA3=1)
YES
NO
Displaytech Ltd
LCD MODULE 64240B SERIES Version : 1.2 P 6 of 30
Data Set
In T6963C, the data have been set and command executes.
The order of procedure of command sending
Note : In case of over 2 data sending, the last data (or last 2 data) is valid.
Description of Command
Register Set
Code Hex Function D1 D2
00100001 21H Cursor Pointer Set X ADRS Y ADRS
00100010 22H Offset Register Set Data 00H
00100100 24H Address Pointer Set Low ADRS High ADRS
(1) Cursor Pointer Set
The position of cursor is specified by X ADRS, Y ADRS. The cursor position is moved only by this command. The
cursor pointer doesn’t have the function of increment and decrement. The shift of cursor are set by this command. X ADRS, Y
ADRS are specified following.
X ADRS 00H~4FH (Lower 7bits are valid)
Y ADRS 00H~1FH (Lower 5bits are valid)
1 screen drive
X ADRS 00~4FH 2 screens drive
X ADRS 00~4FH
Y ADRS
00H~0FH
Y ADRS 00H~0FH
Upper screen
Y ADRS 10H~1FH
Lower screen
COMMAND SEDING
END
STATUS CHECK
DATA WRITE
STATUS CHECK
COMMAND WRITE
1. The case of 1 data
COMMAND SEDING
END
STATUS CHECK
DATA WRITE
STATUS CHECK
COMMAND WRITE
2. The case of 2 data
STATUS CHECK
DATA WRITE
Displaytech Ltd
LCD MODULE 64240B SERIES Version : 1.2 P 7 of 30
(2) Offset Register Set
The offset register is used to determine external character generator RAM area.
T6963C has 16 bit address lines as follow.
MSB LSB
ad15 ad14 ad13 ad12 ad11 ad10 ad9 ad8 ad7 ad6 ad5 ad4 ad3 ad2 ad1 ad0
The upper 5 bit (ad15ad11) are determined by offset register. The middle 8 bit (ad10
ad3) are determined by
character code. The lower 3 bit (ad2ad0) are determined by vertical counter. The lower
5 bit of D1 (data) are valid. The data
format of external character generator RAM.
The ralationship of display RAM address and offset register
Data of offset register CG RAM HEX address(start-end)
00000 0000-07FFH
00001 0800-0FFFH
00010 1000-17FFH
11100 E000-E7FFH
11101 E800-EFFFH
11110 F000-F7FFH
11111 F800-FFFFH
(Example 1)
Offset register 02H
Character code 80H
Character generator RAM start address 0001 0100 0000 0000
1400 H
( Address ) ( Data )
1400H 00H
1401H 1FH
1402H 04H
1403H 04H
1404H 04H
1405H 04H
1406H 04H
1407H 00H
(Example 2)
The relationship of display RAM data and display character
( RAM Data ) ( Character )
A B D E G H I J K L M 21H A
22H B
83H
24H D
25H E
86H
Display character
Note : and are displated by character generator RAM.
Displaytech Ltd
LCD MODULE 64240B SERIES Version : 1.2 P 8 of 30
(3) Address Pointer Set
The address pointer set command is used to indicate the start address for writing (or reading) to external RAM.
The flow chart address pointer set command
Control Word Set
Code Hex Function D1 D2
01000000 40H Text home address set Low address High address
01000001 41H Text area set Columns 00H
01000010 42H Graphic home address set Low address High address
01000011 43H Graphic area set Columns 00H
The home address and column size are defined by this command.
(1) Text Home Address Set
The starting address of external display RAM for Text display is defined by this command. The text home address
shows the left end and most upper position.
The relationship of external display RAM address and display position
TH TH+CL
TH+TA TH+TA+CL
(TH+TA)+TA TH+2TA+CL
(TH+2TA)+TA TH+3TA+CL
TH+(n-1)TA TH+(n-1)TA+CL
TH : Text home address
TA : Text area number (columns)
CL : Columns are fixed by hardware. (pin-programmable)
(Example)
Text home address : 0000H
Text area : 0020H
MD2=H, MD3=L : 32 columns
DUAL=H, MDX=L, MD0=L, MD1=H : 4 lines
0000H 0001H 001EH 001FH
0020H 0021H 003EH 003FH
0040H 0041H 005EH 005FH
0060H 0061H 007EH 007FH
ADDRESS POINTER SET
END
STATUS CHECK
LOW ADDRESS DATA SET
STATUS CHECK
COMMAND 24H SEND
STATUS CHECK
HIGH ADDRESS DATA SET
Address pointer set command send
Displaytech Ltd
LCD MODULE 64240B SERIES Version : 1.2 P 9 of 30
(2) Graphic Home Address Set
The starting address of external display RAM for Graphic display is defined by this command. The graphic home
address shows the left end most upper line.
The relationship of external display RAM address and display position
GH GH+CL
GH+GA GH+GA+CL
(GH+GA)+GA GH+2GA+CL
(GH+2GA)+GA GH+3GA+CL
GH+(n-1)GA GH+(n-1)GA+CL
GH : Graphic home address
GA : Graphic area number (colums)
CL : Columns are fixed by hardware. (pin-programmable)
(Example)
Graphic home address : 0000H
Graphic area : 0020H
MD2=H, MD3=L : 32 columns
DUAL=H, MDS=L, MD0=H, MD1=H : 2 lines
0000H 0001H 001EH 001FH
0020H 0021H 003EH 003FH
0040H 0041H 005EH 005FH
0060H 0061H 007EH 007FH
0080H 0081H 009EH 009FH
00A0H 00A1H 00BEH 00BFH
00C0H 00C1H 00DEH 00DFH
00E0H 00E1H 00FEH 00FFH
0100H 0101H 011EH 011FH
0120H 0121H 013EH 013FH
0140H 0141H 015EH 015FH
0160H 0161H 017EH 017FH
0180H 0181H 019EH 019FH
01A0H 01A1H 01BEH 01BFH
01C0H 01C1H 01DEH 01DFH
01E0H 01E1H 01FEH 01FFH
Displaytech Ltd
LCD MODULE 64240B SERIES Version : 1.2 P 10 of 30
(3) Text Area Set
The columns of display are defined by the hardware setting. This command can be used to adjust columns of display.
(Example)
LCD size : 20 columns, 4 lines
Text home address : 0000H
Text area : 0014H
MD2=H, MD3=L : 32 columns
DUAL=H, MDS=L, MD0=L, MD1=H : 4 lines
0000 0001 ------ 0013 0014 ------ 001F
0014 0015 ------ 0027 0028 ------ 0033
0028 0029 ------ 003B 003C ------ 0047
003C 003D ------ 004F 0050 ------ 005B
LCD
(4) Graphic Area Set
The columns of display are defined by the hardware setting. This command can be used to adjust columns of graphic display.
(Example)
LCD size : 20 columns, 2 lines
Text home address : 0000H
Text area : 0014H
MD2=H, MD3=L : 32 columns
DUAL=H, MDS=L, MD0=H, MD1=H : 2 lines
0000 0001 ------ 0013 0014 ------ 001F
0014 0015 ------ 0027 0028 ------ 0033
0028 0029 ------ 003B 003C ------ 0047
003C 003D ------ 004F 0050 ------ 005B
0050 0051 ------ 0063 0064 ------ 006F
0064 0065 ------ 0077 0078 ------ 0083
0078 0079 ------ 008B 008C ------ 0097
008C 008D ------ 009F 00A0 ------ 00AB
00A0 00A1 ------ 00B3 00B4 ------ 00BF
00B4 00B5 ------ 00C7 00C8 ------ 00D3
00C8 00C9 ------ 00DB 00DC ------ 00E7
00DC 00DD ------ 00EF 00F0 ------ 00FD
00F0 00F1 ------ 0103 0104 ------ 011F
0104 0105 ------ 0127 0128 ------ 0123
0128 0129 ------ 013B 013C ------ 0147
013C 013D ------ 014F 0150 ------ 015B
LCD
The address in graphic area can be continuous and RAM area can be used without ineffective area, if graphic area is defined
the same number as the actual column number of LCD display.
Displaytech Ltd
LCD MODULE 64240B SERIES Version : 1.2 P 11 of 30
Mode Set
Code Function Operand
1000x000 "OR" Mode ---
1000x001 "EXOR" Mode ---
1000x011 "AND" Mode ---
1000x100 "TEXT ATTRIBUTE" Mode ---
10000xxx Internal Character Generator Mode ---
10001xxx External Character Generator Mode ---
x : Don’t care
The display mode is defined by this
command. The display mode don’t have changed until to send next this command.
Logically "OR" , "EXOR", "AND" of text and graphic dispaly can be displayed.
When internal character generator mode is selected, character code 00H~7FH are selected from built-i
n character
generator ROM. The character code 80H~FFH are automatically selected external character generator RAM.
(Example)
Graphic Text
"OR" "AND" "EXOR"
Note : Only text display is attributed, because attribute data is located in graphic RAM area.
Attribute function
"Reverse display", "Character blink" and "Inhibit" are called "Attribute". The attribute data is written in
the graphic area
defined by control word set command. The mode set command selects text display only and graphic display cannot be displayed.
The attribute data of the lst character in text area is written at the lst byte in graphic area, and attribute data of n-
th character is
written at the n-th byte in graphic area. Attribute function is defined as follow.
Attribute RAM byte x x x x d3 d2 d1 d0
d3 d2 d1 d0 Function
0 0 0 0 Normal display
0 1 0 1 Reverse display
0 0 1 1 Inhibit display
1 0 0 0 Blink of normal display
1 1 0 1 Blink of reverse display
1 0 1 1 Blink of inhibit display
Display Mode
Displaytech Ltd
LCD MODULE 64240B SERIES Version : 1.2 P 12 of 30
Code Function Operand
10010000 Display off ---
1001xx10 Cursor on, blink off ---
1001xx11 Cursor on, blink on ---
100101xx Text on, graphic off ---
100110xx Text off, graphic on ---
100111xx Text on, graphic on ---
1 0 0 1 d3 d2 d1 d0
d0: Cursor blink on : 1, off : 0
d1: Cursor display on : 1, off : 0
d2: Text display on : 1, off : 0
d3: Graphic display on : 1, off : 0
Note : It is necessary to turn on "Text display" and "Graphic display" in following case.
1) Combination of text/graphic display, 2) Attribute function.
Cursor Pattern Select
Code Function Operand
10100000 1 line cursor ---
10100001 2 lines cursor ---
10100010 3 lines cursor ---
10100011 4 lines cursor ---
10100100 5 lines cursor ---
10100101 6 lines cursor ---
10100110 7 lines cursor ---
10100111 8 lines cursor ---
When cursor display is ON, this command selects the cursor pattern from 1 line to 8 line
s. The cursor address is defined by
cursor pointer set command.
1 line cursor 2 lines cursor 8 lines cursor
Displaytech Ltd
LCD MODULE 64240B SERIES Version : 1.2 P 13 of 30
Data Auto Read/Write
Code Hex Function Operand
10110000 B0H Data auto write set ---
10110001 B1H Data auto read set ---
10110010 B2H Auto reset ---
This command is convenie
nt to send full screen data from external display RAM. After setting auto mode, "Data write (or
read)" command is not necessary between each data. "Data auto write (or read)" command should follow the "Address pointer
set" and address pointer is automatica
lly increment by + 1 after each data. After sending (or receiving) all data "Auto reset" is
necessary to return normal operation because all data is regarded "Display data" and no command can be accepted in the auto
mode.
Note : Status check for auto mode
(STA2,STA3) should be checked between each data. Auto reset should be performed after
checking STA3=1 (STA2=1). Please refer following flow chart.
AUTO MODE START
END
STATUS CHECK 1
LOWER ADDRESS DATA
STATUS CHECK 1
UPPER ADDRESS DATA
S
TATUS CHECK 1
ADDRESS POINTER SET 24H
STATUS CHECK 1
DATA AUTO WRITE B0H
STATUS CHECK 2
DISPLAY DATA SEND
STATUS CHECK 2
DISPLAY DATA SEND
STATUS CHECK 2
AUTO RESET B2H
YES
STATUS CHECK 1
RETURN
STA0=1,
STA2=1? NO
YES
STATUS CHECK 2
RETURN
STA2=1,
(STA3=1)? NO
Displaytech Ltd
LCD MODULE 64240B SERIES Version : 1.2 P 14 of 30
Data Read Write
Code Hex Function Operand
11000000 C0H Data write and ADP increment Data
11000001 C1H Data read and ADP increment ---
11000010 C2H Data write and ADP decrement Data
11000011 C3H Data read and ADP decrement ---
11000100 C4H Data write and ADP nonvariable Data
11000101 C5H Data read and ADP nonvariable ---
This command is used for data write from MPU to external display RAM, and data read from external display RAM to MPU.
Data write/data read should be executed after setting address by address pointer set command. Address pointer can be
automatically increment or decrement by setting this command.
Note : This command is necessary for each 1 byte data. Please refer following flow chart.
DATA WRITE START
END
STATUS CHECK 1
LOWER ADDRESS DATA
STATUS CHECK 1
UPPER ADDRESS DATA
STATUS CHECK 1
ADDRESS POINTER SET 24H
STATUS CHECK 1
WRITE DATA
SET
STATUS CHECK 1
DATA WRITE C0H
DATA READ
END
ADDRESS POINTER SET
STATUS CHECK 1
DATA READ C1H
Displaytech Ltd
LCD MODULE 64240B SERIES Version : 1.2 P 15 of 30
Screen Peek
Code Hex Function Operand
11100000 E0H Screen Peek ---
This command is used to transfer displayed 1 byte data to data stack, and this 1 byte data can be read from MPU by data
access. The logical combination data of text and graphic display on LCD screen can be read by this command.
The status (STA6) sh
ould be checked just after "Screen peek" command. If the address determined by "Address pointer Set"
command is not in graphic area, this command ignored and status flag (STA6) is set. Please refer following flow chart.
SCREEN PEEK START
END
STATUS CHECK 1
LOWER ADDRESS DATA
STATUS CHECK 1
UPPER ADDRESS DATA
STATUS CHECK 1
ADDRESS POINTER SET 24H
STATUS CHECK 1
SCREEN PEEK E0H
STATUS CHECK STA6=0?
DATA ACCESS
STATUS CHECK 1
YES NO
Displaytech Ltd
LCD MODULE 64240B SERIES Version : 1.2 P 16 of 30
Screen Copy
Code Hex Function Operand
11101000 E8H Screen copy ---
This command is used to copy displayed 1 line data to graphic area. The start point of 1 line data in the screen is determined
by the address pointer. Please refer following flow chart.
Note 1 : In attribute function, this command is invalid. (Because attribute data is in the graphic area.)
Note 2 : In case of 2 screen drive, this command is invalid. (Because T6963C cannot separate upper screen data and lower screen
data.)
SCREEN COPY START
END
STATUS CHECK 1
LOWER ADDRESS DATA
STATUS CHECK 1
UPPER ADDRESS DATA
STATUS CHECK 1
ADDRESS POINTER SET 24H
STATUS CHECK 1
SCREEN COPY E8H
STATUS CHECK STA6=0?
STATUS CHECK STA0/1=1?
NO YES
NO YES
Displaytech Ltd
LCD MODULE 64240B SERIES Version : 1.2 P 17 of 30
Bit Set/Reset
Code Function Operand
11110xxx bit reset ---
11111xxx bit set ---
1111x000 bit 0 (LSB) ---
1111x001 bit 1 ---
1111x010 bit 2 ---
1111x011 bit 3 ---
1111x100 bit 4 ---
1111x101 bit 5 ---
1111x110 bit 6 ---
1111x111 bit 7 (MSB) ---
This command is used to set or reset a bit of 1 byte is specified by address pointer. Plural bits in the 1 byte data cannot be
set/reset at a time. Please refer following flow chart.
BIT SET/RES
ET
END
STATUS CHECK 1
LOWER ADDRESS DATA
STATUS CHECK 1
UPPER ADDRESS DATA
STATUS CHECK 1
ADDRESS POINTER SET 24H
STATUS CHECK 1
WRITE DATA SET
STATUS CHECK 1
BIT SET (RESET)
Displaytech Ltd
LCD MODULE 64240B SERIES Version : 1.2 P 18 of 30
Command List
Command Code D1 D2 Function
Register
Set 00100001
00100010
00100100
X address
Data
Low address
Y address
00H
High address
Cursor pointer set
Offset register set
Address pointer set
Control
Word Set
01000000
01000001
01000010
01000011
Low address
Columns
Low address
Columns
High address
00H
High address
00H
Text home address set
Text area set
Graphic home address set
Graphic area set
Mode Set
1000x000
1000x001
1000x011
1000x100
10000xxx
10001xxx
---
---
---
---
---
---
---
---
---
---
---
---
"OR" mode
"EXOR" mode
"AND" mode
"Text attribute" mode
Internal CG ROM mode
External CG RAM mode
Display
Mode
10010000
1001xx10
1001xx11
100101xx
100110xx
100111xx
---
---
---
---
---
---
---
---
---
---
---
---
Display off
Cursor on, blink off
Cursor on, blink on
Text on, graphic off
Text off, graphic on
Text on, graphic on
Cursor
Pattern
Select
10100000
10100001
10100010
10100011
10100100
10100101
10100110
10100111
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
1 line cursor
2 lines cursor
3 lines cursor
4 lines cursor
5 lines cursor
6 lines cursor
7 lines cursor
8 lines cursor
Data Auto
Read/Write 10110000
10110001
10110010
---
---
---
---
---
---
Data auto write set
Data auto read set
Auto reset
Data Read
Write
11000000
11000001
11000010
11000011
11000100
11000101
Data
---
Data
---
Data
---
---
---
---
---
---
---
Data write and ADP increment
Data read and ADP increment
Data write and ADP decrement
Data read and ADP decrement
Data write and ADP nonvariable
Data read and ADP nonvariable
Screen Peek 11100000 --- --- Screen peek
Screen Copy 11101000 --- --- Screen copy
Bit
Set/Reset
11110xxx
11111xxx
1111x000
1111x001
1111x010
1111x011
1111x100
1111x101
1111x110
1111x111
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
bit reset
bit set
bit 0 (LSB)
bit 1
bit 2
bit 3
bit 4
bit 5
bit 6
bit 7 (MSB)
Displaytech Ltd
LCD MODULE 64240B SERIES Version : 1.2 P 19 of 30
Character Code Map
Displaytech Ltd
LCD MODULE 64240B SERIES Version : 1.2 P 20 of 30
ELECTRO-OPTICAL CHARACTERISTICS ( VOP = 13.8V, Ta = 25°C )
Typ viewing angle (deg)
Typ response
time Tr (ms) Typ response
time Tf (ms)
LCD mode Normal
temp Wide
temp Normal
temp Wide
temp
Typ contrast
ratio Cr = 0 = 90 = 180 = 270
STN Y/G (B) 14 55 30 34 28
STN Blue (C) 4 47 24 29 23
STN Grey (D) 7 54 28 32 28
FSTN (F) 21 60 45 53 43
FSTN Negative (G)
331 167 91 66
9 48 24 30 23
Note1: Definition of response time.
Note2: Definition of contrast ratio ‘Cr’.Note3: Definition of viewing angle range ‘’.
Displaytech Ltd
LCD MODULE 64240B SERIES Version : 1.2 P 21 of 30
INTERFACE PIN CONNECTIONS
Pin No. Symbol Level Description
1 FG 0V Frame ground
2 VSS 0V Ground
3 VDD 5.0V Supply voltage for logic
4 VO --- Input voltage for LCD
5 WR L Write signal
6 RD L Read signal
7 CE L Chip enable signal
8 C/D H/L H : Instruction signal, L : Data signal
9 NC --- No connection
10 RESET L Reset signal
11 DB0 H/L Data bit 0
12 DB1 H/L Data bit 1
13 DB 2 H/L Data bit 2
14 DB 3 H/L Data bit 3
15 DB 4 H/L Data bit 4
16 DB 5 H/L Data bit 5
17 DB 6 H/L Data bit 6
18 DB 7 H/L Data bit 7
19 FS H/L Font select signal ( H : 6 x 8 dots, L : 8 x 8 dots )
20 VOUT -15V Output voltage for LCD
21 A --- Side light anode
22 K --- Side light cathode
Displaytech Ltd
LCD MODULE 64240B SERIES Version : 1.2 P 22 of 30
CIRCUIT DIAGRAM
Displaytech Ltd
LCD MODULE 64240B SERIES Version : 1.2 P 23 of 30
RELIABILITY
Content of Reliability Test Environmental Test
No. Test Item Content of Test Test Condition Applicable
Standard
1 High temperature
storage Endurance test applying the high storage
temperature for a long time. 60 C
200 hrs ------
2 Low temperature
storage Endurance test applying the low storage
temperature for a long time. -10 C
200 hrs ------
3 High temperature
operation Endurance test applying the electric stress
(Voltage & Current) and the thermal stress to
the element for a long time.
50 C
200 hrs ------
4 Low temperature
operation Endurance test applying the electric stress under
low temperature for a long time. 0C
200 hrs ------
5High temperature
Humidity storage Endurance test applying the high temperature
and high humidity storage for a long time. 60 C , 90 RH
96 hrs MIL-202E-103B
JIS-C5023
6High temperature
Humidity operation Endurance test applying the electric stress
(Voltage & Current) and temperature humidity
stress to the element for a long time.
40 C , 90 RH
96 hrs MIL-202E-103B
JIS-C5023
7 Temperature cycle Endurance test applying the low and high
temperature cycle. -10C60C
10 cycles ------
Mechanical Test
8 Vibration test Endurance test applying the vibration during
transportation and using. 1022Hz 1.5mmp-p
22500Hz 1.5G
Total 0.5hrs
MIL-202E-201A
JIS-C5025
JIS-C7022-A-10
9 Shock test Constructional and mechanical endurance test
applying the shock during transportation. 50G half sign
wave 1l msedc
3 times of each direction
MIL-202E-213B
10 Atmospheric pressure
test Endurance test applying the atmospheric
pressure during transportation by air. 115 mbar
40 hrs MIL-202E-105C
Others
11 Static electricity test Endurance test applying the electric stress to the
terminal. VS=800V , RS=1.5 k
CS=100 pF
1 time
MIL-883B-3015.1
Supply voltage for logic system = 5V. Supply voltage for LCD system = Operating voltage at 25C.
Failure Judgement Criterion
Criterion Item Test Item No. Failure Judgment Criterion
1234567891011
Basic specification Out of the Basic Specification
Electrical characteristic Out of the DC and AC Characterstic
Mechanical characterstic Out of the Mechanical Specification Color
change : Out of Limit Apperance Specification
Optical characterstic Out of the Apperance Standard
25C
5min.
1 cycle
60C
30min
.
-10C
30min
.
Displaytech Ltd
LCD MODULE 64240B SERIES Version : 1.2 P 24 of 30
QUALITY GUARANTEE
Acceptable Quality Level
Each lot should satisfy the quality level defined as follows.
- Inspection method : MIL-STD-105E LEVEL II Normal one time sampling
- AQL
Partition AQL Definition
A: Major 0.4% Functional defective as product
B: Minor 1.5% Satisfy all functions as product but not satisfy cosmetic standard
Definition of ‘LOT’
One lot means the delivery quantity to customer at one time.
Conditions of Cosmetic Inspection
Environmental condition
The inspection should be performed
at the 1m of height from the LCD module under 2 pieces of 40W white fluorescent
lamps (Normal temperature 2025C and normal humidity 6015RH).
Inspection method
The visual check should be performed vertically at more than 30cm distance from the LCD panel.
Driving voltage
The VOvalue which the most optimal contrast can be obtained near the specified VOin the specification. (Within
0.5V of
the typical value at 25C.).
INSPECTION CRITERIA
Module Cosmetic Criteria
No. Item Judgement Criterion Partition
1 Difference in Spec. None allowed Major
2 Pattern peeling No substrate pattern peeling and floating Major
3 Soldering defects No soldering missing
No soldering bridge
No cold soldering
Major
Major
Minor
4 Resist flaw on substrate Invisible copper foil (0.5mm or more) on substrate pattern Minor
5 Accretion of metallic
Foreign matter No soldering dust
No accretion of metallic foreign matters (Not exceed 0.2mm) Minor
Minor
6 Stain No stain to spoil cosmetic badly Minor
7 Plate discoloring No plate fading, rusting and discoloring Minor
8 Solder amount
1. Lead parts
a. Soldering side of PCB
Solder to form a ‘Filet’
all around the lead.
Solder should not hide the
lead form perfectly. (too much)
b. Components side
( In case of ‘Through Hole PCB’ )
Solder to reach the Components side of PCB.
Minor
2. Flat packages Either ‘toe’ (A) or ‘heal’ (B) of
the lead to be covered by ‘Filet’.
Lead form to be assume over
solder.
Minor
3. Chips (32) H h(12) H Minor
H
h
AB
Displaytech Ltd
LCD MODULE 64240B SERIES Version : 1.2 P 25 of 30
Screen Cosmetic Criteria (Non-Operating)
No. Defect Judgement Criterion Partition
1 Spots In accordance with Screen Cosmetic Criteria (Operating) No.1. Minor
2 Lines In accordance with Screen Cosmetic Criteria (Operating) No.2. Minor
3 Bubbles in polarizer Minor
4 Scratch In accordance with spots and lines operating cosmetic criteria. When the light
reflects on the panel surface, the scratches are not to be remarkable. Minor
5 Allowable density Above defects should be separated more than 30mm each other. Minor
6 Coloration Not to be noticeable coloration in the viewing area of the LCD panels.
Back-lit type should be judged with back-lit on state only. Minor
7 Contamination Not to be noticeable. Minor
Screen Cosmetic Criteria (Operating)
No. Defect Judgement Criterion Partition
1 Spots A) Clear
Note : Including pin holes and defective dots which must be within one pixel
size.
B) Unclear
Minor
2 Lines A) Clear
Note : ( ) - Acceptable Qty in active area
L - Length (mm)
W - Width (mm)
- Disregard
B) Unclear
Minor
‘Clear’= The shade and size are not changed by VO.
‘Unclear’ = The shade and size are changed by VO.
Size : d mm Acceptable Qty in active area
d0.3 Disregard
0.3 d1.03
1.0 d1.5 1
1.5 d0
Size : d mm Acceptable Qty in active area
d0.1 Disregard
0.1 d0.26
0.2 d0.3 2
0.3 d0
Size : d mm Acceptable Qty in active area
d0.2 Disregard
0.2 d0.56
0.5 d0.7 2
0.7 d0
2.0
L 10.0
See No. 1
(6)
(0)
W
0.5
0.3
0.05
2.0
L 5.0
See No. 1
(6)
(0)
W
0.1
0.05
0.02
Displaytech Ltd
LCD MODULE 64240B SERIES Version : 1.2 P 26 of 30
Screen Cosmetic Criteria (Operating) (Continued)
No. Defect Judgement Criterion Partition
3 Rubbing line Not to be noticeable.
4 Allowable density Above defects should be separated more than 10mm each other. Minor
5 Rainbow Not to be noticeable. Minor
6 Dot size To be 95105of the dot size (Typ.) in drawing.
Partial defects of each dot (ex. pin-hole) should be treated as ‘spot’.
(see Screen Cosmetic Criteria (Operating) No.1)
Minor
7 Uneven brightness
(only back-lit type
module)
Uneven brightness must be BMAX BMIN 2
- BMAX : Max. value by measure in 5 points
- BMIN : Min. value by measure in 5 points
Divide active area into 4 vertically and horizontally.
Measure 5 points shown in the following figure.
Minor
Note :
(1) Size : d = (long length short length) 2
(2) The limit samples for each item have priority.
(3) Complexed defects are defined item by item, but if the number of defects are defined in above table, the total number
should not exceed 10.
(4) In case of ‘concentration’, even the spots or the lines of ‘disreg
arded’ size should not allowed. Following three situations
should be treated as ‘concentration’.
- 7 or over defects in circle of 5mm.
- 10 or over defects in circle of 10mm.
- 20 or over defects in circle of 20mm.
PRECAUTIONS FOR USING LCD MODULES
Handing Precautions
(1) The display panel is made of glass. Do not subject it to a mechanical shock by dropping it or impact.
(2) If the display panel is damaged and the liquid crystal substance leaks out, be sure not to get any in your mouth. If
the
substance contacts your skin or clothes, wash it off using soap and water.
(3) Do not apply excessive force to the display surface or the adjoining areas since this may cause the color tone to vary.
(4) The polarizer covering the display surface of the LCD module is soft and easily scratched. Handle this polarizer carefully.
(5) If the display surface becomes contaminated, breathe on the surface and gently wipe it with a soft dry cloth. If it is heavily
contaminated, moisten cloth with one of the following solvents :
- Isopropyl alcohol
- Ethyl alcohol
(6) Solvents other than those above-mentioned may damage the polarizer. Especially, do not use the following.
- Water
- Ketone
- Aromatic solvents
(7) Exercise care to minimize corrosion of
the electrode. Corrosion of the electrodes is accelerated by water droplets, moisture
condensation or a current flow in a high-humidity environment.
: Measuring points
Displaytech Ltd
LCD MODULE 64240B SERIES Version : 1.2 P 27 of 30
(8) Install the LCD Module by using the mounting holes. When mounting the LCD module make sure it is f
ree of twisting,
warping and distortion. In particular, do not forcibly pull or bend the IO cable or the backlight cable.
(9) Do not attempt to disassemble or process the LCD module.
(10) NC terminal should be open. Do not connect anything.
(11) If the logic circuit power is off, do not apply the input signals.
(12) 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 modules.
- Tools required for assembling, such as soldering irons, must be properly grounded.
- To reduce the amount of static electricity generated, do not conduct assembling and other work under dry conditions.
- The LCD module is coated with a film to protect the displ
ay 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 (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.
Others
Liquid crystals solidify under low temperature (be
low the storage temperature range) leading to defective orientation or the
generation of air bubbles (black or white). Air bubbles may also be generated if the module is subject to a low temperature.
If the LCD modules have been operating for a long time
showing the same display patterns, the display patterns may remain
on the screen as ghost images and a slight contrast irregularity may also appear. A normal operating status can be regained by
suspending use for some time. It should be noted that this phenomenon does not adversely affect performance reliability.
To minimize the performance degradation of the LCD modules resulting from destruction 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.
USING LCD MODULES
Liquid Crystal Display Modules
LCD is composed of glass and polarizer. Pay attention to the following items when handling.
(1) Please keep the t
emperature within specified range for use and storage. Polarization degradation, bubble generation or
polarizer peel-off may occur with high temperature and high humidity.
(2) Do not touch, push or rub the exposed polarizers with anything harder than an HB pencil lead (glass, tweezers, etc.).
(3) N-
hexane is recommended for cleaning the adhesives used to attach front/rear polarizers and reflectors made of organic
substances which will be damaged by chemicals such as acetone, toluene, ethanol and isopropylalcohol.
(4) When the display surface becomes dusty, wipe gently with absorbent cotton or other soft material like chamois soaked in
petroleum benzin. Do not scrub hard to avoid damaging the display surface.
(5) Wipe off saliva or water drops immediately
, contact with water over a long period of time may cause deformation or color
fading.
(6) Avoid contacting oil and fats.
(7) Condensation on the surface and contact with terminals due to cold will damage, stain or dirty the polarizers. After
products ar
e tested at low temperature they must be warmed up in a container before coming is contacting with room temperature
air.(8) Do not put or attach anything on the display area to avoid leaving marks on.
(9) Do not touch the display with bare hands. This w
ill stain the display area and degradate insulation between terminals (some
cosmetics are determinated to the polarizers).
(10) As glass is fragile. It tends to become or chipped during handling especially on the edges. Please avoid dropping or
jarring.
Displaytech Ltd
LCD MODULE 64240B SERIES Version : 1.2 P 28 of 30
Installing LCD Modules
The hole in the printed circuit board is used to fix LCM as shown in the picture below. Attend to the following items when
installing the LCM.
(1) Cover the surface with a transparent protective plate to protect the polarizer and LC cell.
(2) When assembling the LCM into other equipment, the spacer to the bit between the LCM and the fitting plate should have
enough height to avoid causing stress to the module surface, refer to the individual specifications for measurements. The
measurement tolerance should be 0.1mm.
Precaution for Handing LCD Modules
Since LCM has been assembled and adjusted with a high degree of precision, avoid applying excessive shocks to the module
or making any alterations or modifications to it.
(1) Do not alter, modify or change the the shape of the tab on the metal frame.
(2) Do not make extra holes on the printed circuit board, modify its shape or change the positions of components to be
attached.
(3) Do not damage or modify the pattern writing on the printed circuit board.
(4) Absolutely do not modify the zebra rubber strip (conductive rubber) or heat seal connector.
(5) Except for soldering the interface, do not make any alterations or modifications with a soldering iron.
(6) Do not drop, bend or twist LCM.
Electro-Static Discharge Control
Since this module uses a CMOS LSI, the same careful attention should be paid to electrostatic discharge as for an ordinary
CMOS IC.
(1) Make certain that you are grounded when handing LCM.
(2) Before remove LCM from its packing case or incorporating it into a set, be sure the module and your body have the same
electric potential.
(3) When soldering the terminal of LCM, make certain the AC power source for the soldering iron does not leak.
(4) When using an electric screwdriver to attach LCM, the screwdriver should be of ground potentiality to minimize as much
as possible any transmission of electromagnetic waves produced sparks coming from the commutator of the motor.
(5) As far as possible make the electric potential of your work clothes and that of the work bench the ground potential.
(6) To reduce the generation of static electricity be careful that the air in the work is not too dried. A relative humidity of 50%-
60% is recommended.
Precaution for soldering to the LCM
(1) Observe the following when soldering lead wire, connector cable and etc. to the LCM.
- Soldering iron temperature : 280C10C.
- Soldering time : 3-4 sec.
- Solder : eutectic solder.
If sol
dering flux is used, be sure to remove any remaining flux after finishing to soldering operation. (This does not apply in
the case of a non-
halogen type of flux.) It is recommended that you protect the LCD surface with a cover during soldering to
prevent any damage dur to flux spatters.
(2) When soldering the electroluminescent panel and PC board, the panel and board should not be detached more than three
times. This maximum number is determined by the temperature and time conditions mentioned above, thoug
h there may be some
variance depending on the temperature of the soldering iron.
(3) When remove the electoluminescent panel from the PC board, be sure the solder has completely melted, the soldered pad
on the PC board could be damaged.
Displaytech Ltd
LCD MODULE 64240B SERIES Version : 1.2 P 29 of 30
Precautions for Operation
(1) Viewing angle varies with the change of liquid crystal driving voltage (VO). Adjust VOto show the best contrast.
(2) Driving the LCD in the voltage above the limit shortens its life.
(3) Response time is greatly delayed at temperature b
elow the operating temperature range. However, this does not mean the
LCD will be out of the order. It will recover when it returns to the specified temperature range.
(4) If the display area is pushed hard during operation, the display will become abnorm
al. However, it will return to normal if
it is turned off and then back on.
(5) Condensation on terminals can cause an electrochemical reaction disrupting the terminal circuit. Therefore, it must be used
under the relative condition of 40C , 50% RH.
(6) When turning the power on, input each signal after the positive/negative voltage becomes stable.
Storage
When storing LCDs as spares for some years, the following precaution are necessary.
(1) Store them in a sealed polyethylene bag. If properly sealed, there is no need for dessicant.
(2) Store them in a dark place. Do not expose to sunlight or fluorescent light, keep the temperature between 0C and 35C.
(3) The polarizer surface should not come in contact with any other
objects. (We advise you to store them in the container in
which they were shipped.)
(4) Environmental conditions :
- Do not leave them for more than 168hrs. at 60C.
- Should not be left for more than 48hrs. at -20C.
Safety
(1) It is recommended
to crush damaged or unnecessary LCDs into pieces and wash them off with solvents such as acetone
and ethanol, which should later be burned.
(2) If any liquid leakes out of a damaged glass cell and comes in contact with the hands, wash off thoroughly with
soap and
water.
Limited Warranty
Unless agreed between DISPLAYTECH and customer, DISPLAYTECH will replace or repair any of its LCD modules which
are found to be functionally defective when inspected in accordance with DISPLAYTECH LCD acceptance standar
ds (copies
available upon request) for a period of one year from date of shipments. Cosmetic/visual defects must be returned to
DISPLAYTECH within 90 days of shipment. Confirmation of such date shall be based on freight documents. The warranty
liability of
DISPLAYTECH limited to repair and/or replacement on the terms set forth above. DISPLAYTECH will not be
responsible for any subsequent or consequential events.
Return LCM under warranty
No warranty can be granted if the precautions stated above have been disregarded. The typical examples of violations are :
- Broken LCD glass.
- PCB eyelet’s damaged or modified.
- PCB conductors damaged.
- Circuit modified in any way, including addition of components.
- PCB tampered with by grinding, engraving or painting varnish.
- soldering to or modifying the bezel in any manner.
Module repairs will be invoiced to the customer upon mutual agreement. Modules must be returned with sufficient description
of the failures or defects. Any connectors or cable in
stalled by the customer must be removed completely without damaging the
PCB eyelet’s, conductors and terminals.
REVISION RECORD
Displaytech Ltd
LCD MODULE 64240B SERIES Version : 1.2 P 30 of 30
VERSION CHANGES DATE
1.2 Add Note 1 inABSOLUTE MAXIMUM RATINGS section in page 3 16 May 2006
