Website:
www.displaytech.com.hk
LCD Module
Product Specification
Product: 128240D Series LCD Module (240 x 128 DOTS)
Displaytech Ltd
LCD MODULE
128240D SERIES
Version : 1.2
P 2 of 21
PRODUCT SPECIFICATIONS
GENERAL SPECIFICATION
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
ELECTRO-OPTICAL CHARACTERISTICS
BLOCK DIAGRAM
MECHANICAL DRAWING
BACKLIGHT DRAWING
BACKLIGHT SPECIFICATION
QUALITY GUARANTEE
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.
12 December 2011.
Displaytech Ltd
Item
Display Format
Dot Size (W x H)
View Area (W x H)
Module Size (W x H x T)
LCD Type
Polarizer Mode
View Angle
Backlight
Backlight Driver Type
Backlight Color
Controller & LCD Driver
Driving Method
LCD MODULE
128240D SERIES
Version : 1.2
P 3 of 21
GENERAL SPECIFICATION
Contents
240 x 128 DOTS
0.325 x 0.325
92.0 mm x 53.0mm
98.7 mm x67.7mm x 9.5 mm
FSTN
Transflective
6 / 12 O’clock
LED
External Power
White
ST7529-G
1/144 Duty, 1/12 Bias
ABSOLUTE MAXIMUN RATINGS (Ta=25°C VSS=0V)
ITEM
Power Supply for Logic
Power Supply for LCD
Input Voltage
Supply Voltage for LED Backlight
Normal Operating Temperature
Normal Storage Temperature
Wide Operating Temperature
Wide Storage Temperature
SYMBOL
VDD-VSS
VLCD-VSS
VIN
V
LED
Top
Tst
Top
Tst
MIN.
-0.5
-0.5
-0.5
---
0
-10
-20
-30
TYP.
---
---
---
3.2
---
---
---
---
MAX.
4.0
20.0
VDD+0.5
---
50
60
70
80
UNIT
V
V
V
V
°C
°C
°C
°C
ELECTRICAL CHARACTERISTICS (Ta=25°C, VDD=3.0V+/-5%)
ITEM
Power Supply for LCM
Input Voltage
LCD Module Driving
Voltage
Supply Current for
LCM
SYMBOL
VDD-VSS
VIL
VIH
VLCD
IDD
Ie
ILED
CONDITION
---
L level
H level
---
25°C
---
VDD=3.0V
---
VLED=3.2V
MIN.
2.85
Vss
0.7VDD
---
---
---
---
---
---
TYP.
3.0
---
---
---
15.5
---
2.0
---
120
MAX.
3.15
0.3VDD
VDD
---
---
---
---
---
---
UNIT
Volt
Volt
Volt
Volt
mA
REMARK:
•
When the loading of LCD panel is heavier, the performance of booster will not be in a good working condition. The user
may set the BOOSTER EFFICIENCY level to be higher and only a little bit more current needed.
Displaytech Ltd
NO
1
Item
Recommended
Operating
Voltage
Symbol
VLCD
LCD MODULE
128240D SERIES
Version : 1.2
P 4 of 21
ELECTRO-OPTICAL CHARACTERISTICS
Measuring
Condition
=0
Φ=
0
=0
Φ=
0
=0
Φ=
0
=0
Φ=
10
=0
Φ=
10
Φ=0°
Φ=180°
Φ=90°
Φ=270°
Hz=64
°C
25
0
25
40
0
25
40
0
25
40
0
25
40
25
25
25
25
25
STD.Value
Min
Typ
14
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
14.5
---
1.869
---
---
2.116
---
---
240
---
---
200
---
40
35
30
30
16
Max
15
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
Note1
Note2
Unit
Remark
Vth
2
Operating
Voltage
Vsat
V
Tr
3
Response time
Tf
ILCD
ms
Note4
4
Viewing
Angle (Cr
2)
Deg
Note1
5
NOTE 1:
Current
Consumption
uA
Note3
DEFINITION OF VIEWING ANGLE AND DIRECTION
Z =0
°
12H
Φ
=180
°
3H
Φ
=90
°
Detector
Φ
9H
Φ
=270
°
NOTE 2:
6H
Φ
=0
°
THERSHOLD VOLTAGE AND SATURATION VOLTAGE
Vth:
The voltage Vop which the transmission rate of segment is 90%(positive) or 10%(negative) of saturated value on conditions
of the selected waveform. (non-selected waveform is opposition)
Vsat:
The voltage Vop which the transmission rate of segment is 10%(positive) or 10%(negative) of saturated value on
conditions of the selected waveform. (non-selected waveform is opposition)
Displaytech Ltd
NOTE 3:
LCD MODULE
128240D SERIES
Version : 1.2
P 5 of 21
CURRENT CONSUMPTION (I
LCD
)
Conditions:
1.Driving waveform: static waveform.
NOTE 4:
RESPONSE TIME (Tr, Tf)
2.Voltage applied to all segments
NOTE 5:
CONTRAST RATIO (CR)
5.1
POSITIVE TYPE:
CONTRAST RATIO =
5.2
NEGATIVE TYPE:
CONTRAST RATIO =
BRIGHTNESS AT VOP (SELECTED)
BRIGHTNESS AT VOP (NON-SELECTED)
BRIGHTNESS AT VOP (NON-SELECTED)
BRIGHTNESS AT VOP (SELECTED)
NOTE 6:
CAPACITANCE (C)
Conditions:
Voltage applied to all segments.
PCB设计
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