PACIFIC DISPLAY DEVICES
LCD Component Data Sheet
Model Number: 128128-00
128 x 128 Dot
Graphic LCD Assembly
With LC7981 Sanyo Graphic LCD Controller
EL Panel / LED Backlight Options
CONTENTS
1.
GENERAL INFORMATION
1.1 Product Overview
1.2 Part Options and Numbering System
1.3 Absolute Maximum Ratings
1.4 Circuit Block Diagram
1.5 Mechanical Characteristics
1.6 Input Signal Function
1.7 LCM Power, Contrast Control and Bias
1.8 LCD Dimensions
ELECTRICAL / OPTICAL CHARACTERISTICS
2.1 DC Electrical Characteristics
2.2 AC Electrical Characteristics
2.3 Optical Characteristics
2.4 LED Backlight Characteristics
2.5 EL Panel Backlight Characteristics
LCD CONTROLLER CHARACTERISTICS
3.1 LCD Controller Display and Control Functions (LC7981)
3.2 LCD Controller Character Code map
RELIABILITY
PRECAUTIONS FOR USING LCD MODULES
2
2
3
3
3
4
4
5
2.
6
7
8
10
10
3.
11
17
18
19
4.
5.
139 Avenida Victoria – Suite 100 – San Clemente, CA – 92672
Tel: 949-361-8957 – Fax: 949-361-9158 – Web: www.pacificdisplay.com
SPECIFICATIONS FOR LIQUID CRYSTAL DISPLAY MODULE
MODEL NO: 128128
1. GENERAL INFORMATION
1.1 Product Overview
•
128 x 128 dot matrix LCD
•
STN (Super Twisted Nematic) or FSTN (Film compensated Super Twisted Nematic) Technology
•
LC7981 (or equivalent) Graphics Controller IC w/ 2K SRAM.
•
Multiplex drive : 1/128 duty, 1/11 bias
•
LCD Module Service Life: 100,000 hours minimum
1.2 Part Options and Numbering System
128128
-00
-SL
-F
-ST
-LED
-GY
-6
Custom Option Designator:
•
Internal LC7981 Controller
Operating Mode:
•
(-SL) STN Silver / Gray
•
(-GR) STN Green
•
(-BN) STN Blue Negative Image
•
(-FC) FSTN Black & White Image
Rear Polarizer Options:
•
(-F) Transflective
•
(-M) Transmissive
•
(-R) Reflective (No Backlight)
Operating Temperature:
•
(-ST) Standard (0 to +50 ºC)
•
(-ET) Extended (-20 to +70 ºC)
Backlight Options:
•
(-LED) Array Lit LED Backlight
•
(-ELP) EL Panel Backlight
Backlight Coloration Options:
•
(-WH) ELP – White
•
(-GY) LED - Green/Yellow
•
(-AM) LED - Amber
•
(-BG) ELP – Blue Green
Viewing Angle:
•
(-6) 6 o’clock
•
(-12) 12 0’clock
Additional options:
•
None
Pacific Display Devices
11.06.2002
2
SPECIFICATIONS FOR LIQUID CRYSTAL DISPLAY MODULE
MODEL NO: 128128
1.3 Absolute Maximum Ratings
Parameter
Supply voltage for logic
Supply voltage for LCD
Input voltage
Standard Operating temperature
Standard Storage temperature
Extended Operating temperature
Extended Storage temperature
Soldering Temp
Symbol
V
DD
V
DD
– V0
VI
TOP (-ST)
TST (-ST)
TOP (-ET)
TST (-ET)
Tsolder
Min
-0.3
-0.3
-0.3
0
-20
-20
-30
260
Max
7.0
30.0
V
DD
+0.3
50
60
70
80
Unit
V
V
V
ºC
ºC
ºC
ºC
ºC
1.4 Circuit Block Diagram
D0 – D7
/WR
/RD
/CE
C/D
/RST
FS
MD2
VDD
VO
Vss
Controller
LSI
LC 7981
2K
SRAM
T6A39 x 2
SEG Driver
S128
T6A40 x 2
LCD Panel
C128
128 x 128 Dots
Bias
Circuitry
To LSI
COM. Driver
Anode
Cathode
ELP / LED
Backlight
1.5 Mechanical Characteristics
Item
Module size (W×H×T)
Viewing area (W×H)
Active area (W×H)
Number of dots
Dot size (W×H)
Dot pitch (W×H)
Contents
74.2 x 69.9 x 10.0 Max (Reflective / ELP Backlight)
74.2 x 69.9 x 15.0 Max (LED Backlight)
49.0 x 49.0
44.77 x 44.77
128 x 128
0.32 x 0.32
0.35 x 0.35
Unit
mm
mm
mm
mm
dots
mm
mm
Pacific Display Devices
11.06.2002
3
SPECIFICATIONS FOR LIQUID CRYSTAL DISPLAY MODULE
MODEL NO: 128128
1.6 Input Signal Function
Pin No.
1-8
9
10
11
12
13
14
15
16
17-18
19
20
Symbol
DB0-DB7
RS
RD/WR
E
/CS
/RST
VO
VDD
VSS
NC
LED A
LED K
Level
H/L
H/L
H/L
H/L
H/L
L
Input
5.0V
0V
---
Input
Input
Description
Bidirectional Data Bus Lines
Instruction / Data
Data Read/Write
Enable
/Chip Select
/Reset
LCD Negative Bias
Supply voltage for logic
Ground
No Connection
+ LED or EL Backlight
- LED or EL Backlight
Interface connector is mounted on “circuit” side of module, and it is a FFC connector. The Molex
equivalent of this connector is:
Molex 71220-2000
1.7 LCM Power, Contrast Control and Bias
VDD
VDD
VO
VR:
20Kohm
VSS
-10V
LCM
A
LED / ELP /
CCFL
Backlight
Backlight
Power
K
*Note : DC-to-DC Converter Not Built In
Pacific Display Devices
11.06.2002
4
SPECIFICATIONS FOR LIQUID CRYSTAL DISPLAY MODULE
MODEL NO: 128128
1.8 LCM Dimensions
Pacific Display Devices
11.06.2002
5
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