w w w . D a t a S h e e t 4 U . c o m
First Edition
Approved by
Production Div.
Sep 3, 1997
Checked by
Quality Assurance Div.
LCD Module Specification
Final Revision Checked by Design Engineering Div.
*******
Prepared by Type No. Production Div.
ＤＭＣ２０４３４Ｎ－ＳＥＷ
Table of Contents
1. 2. 3. 4. 5. 6. 7. 8. 9. 10. General Specifications .............................................................................2 Electrical Specifications...........................................................................3 Optical Specifications ..............................................................................6 I/O Terminal.............................................................................................8 Test..........................................................................................................10 Appearance Standards............................................................................11 Code System of Production Lot ..........................................................14 Type Number .........................................................................................14 Applying Precautions .............................................................................14 Handling Precautions .............................................................................15
Revision History
Rev. Date Page Comment
DMC20434N-SEW
(AU)
No.97-0209
OPTREX
OPTREX CORPORATION
Page 1/15
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1.General Specif ications
Operating Temp. Storage Temp. Display Format Display Fonts Viewing Area Outline Dimensions Weight LCD Type
： min. 0℃ ～ max. 50℃ ： min. -20℃ ～ max. 70℃ ： 20 characters × 4 lines ： 5 × 8 dots ( 1 character ) ： 76.0 (W) × 25.2 (H) mm ： 98.5 (W) × 60.0 (H) × 11.0 max. (D) mm ： 70g max. ： NSD-7141 ( STN / Neutral-mode / Transflective ) ： 6:00 ： Electro Luminescence (EL) / White ： Dimensional Outline UE-34749
Viewing Angle Backlight Drawings
DMC20434N-SEW
(AU)
No.97-0209
OPTREX
OPTREX CORPORATION
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2.Electrical Specif ications
2.1.Absolute Maximum Ratings VSS=0V Parameter Supply Voltage (Logic) Supply Voltage (LCD Drive) Input Voltage VI － -0.3 VCC+0.3 V VCC-VEE － 0 6.5 V Symbol VCC-VSS Conditions － Min. -0.3 Max. 6.5 Units V
2.2.DC Characteristics Ta=25℃, VSS=0V Parameter Supply Voltage (Logic) Supply Voltage (LCD Drive) High Level Input Voltage Low Level Input Voltage High Level Output Voltage Low Level Output Voltage Supply Current ICC VCC-VSS=5.0V － 2.3 4.0 mA VOL IOL=1.2mA 0 － 0.4 V VOH IOH=-0.205mA 2.4 － VCC V VIL VCC=5.0V±10% 0 － 0.6 V VIH VCC=5.0V±10% 2.2 － VCC V VCC-VEE Shown in 3.1 V Symbol VCC-VSS Conditions － Min. 4.5 Typ. － Max. 5.5 Units V
DMC20434N-SEW
(AU)
No.97-0209
OPTREX
OPTREX CORPORATION
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2.3.AC Characteristics VCC=5.0V±10% Parameter Enable Cycle Time Enable Pulse Width Enable Rise/Fall Time Address Setup Time Address Hold Time Write Data Setup Time Write Data Hold Time Read Data Delay Time Read Data Hold Time
VIH VIL
Symbol
Conditions Fig.1, 2 Fig.1, 2 Fig.1, 2 Fig.1, 2 Fig.1, 2 Fig.1 Fig.1 Fig.2 Fig.2
VIH VIL
Min. 500 230 － 40 10 80 10 － 5
Max. － － 20 － － － － 160 －
Units ns ns ns ns ns ns ns ns ns
tCYC
PWEH
tEr, tEf tAS tAH tDSW tDHW tDDR tDHR
RS
tAS
tAH
R/W
VIL PWEH
VIL
tEr
E
VIH VIL VIH
tEf
VIL VIL
tDSW
DB0～DB7
VIH VIL
tDHW
VIH VIL
Valid Data
tCYC
Fig.1
VIH VIL
Write Operation Timing
VIH VIL
RS
tAS
VIH
tAH
VIH
R/W
PWEH
tEr
E
VIH VIL VIH
tEf
VIL VIL
tDDR
DB0～DB7
VOH VOL
tDHR
VOH VOL
Valid Data
tCYC
Fig.2
Read Operation Timing
DMC20434N-SEW
(AU)
No.97-0209
OPTREX
OPTREX CORPORATION
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2.4.Lighting Specifications 2.4.1.Absolute Maximum Rating Ta=25℃ Parameter Input Voltage Input Frequency Conditions － AC100Vrms Min. － － Typ. － － Max. 150 800 Units Vrms Hz
2.4.2.Operating Characteristics Ta=25℃ Parameter Input Voltage Input Frequency Current Luminance of Backlight Surface Life AC100Vrms, 400Hz Ta=20℃,60%RH Recommended Inverter : NEL-D32-46 ( DC 5.0V±10%, Produced by NEC ) 2000 － － hrs Conditions － － AC100Vrms, 400Hz AC100Vrms, 400Hz Min. － － － 34 Typ. 100 400 2.3 43 Max. － － 3.1 － Units Vrms Hz mA cd/㎡
DMC20434N-SEW
(AU)
No.97-0209
OPTREX
OPTREX CORPORATION
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3.Optical Specif ications
3.1.LCD Driving Voltage Parameter Recommended LCD Driving Voltage Note 1 : VCC-VEE Symbol Conditions Ta= 0℃ Ta=25℃ Min. － 4.4 Typ. － 4.7 Max. 5.3 5.0 Units V V
Note 1 Ta=50℃ 4.1 V － － Voltage (Applied actual waveform to LCD Module) for the best contrast. The range of minimum and maximum shows tolerance of the operating voltage. The specified contrast ratio and response time are not guaranteed over the entire range.
3.2.Optical Characteristics Ta=25℃, 1/16 Duty, 1/5 Bias, VD=4.5V (Note 4), θ= 0ﾟ, φ=－ﾟ Parameter Contrast Ratio Viewing Angle Response Rise Note 2 TON － Note 1 Symbol CR Conditions θ= 0ﾟ, φ=－ﾟ Min. － Typ. 4.5 Max. － Units
Shown in 3.3 － 140 210 ms
Time Decay Note 3 TOFF 180 270 ms － － Note 1 : Contrast ratio is definded as follows. CR = LOFF / LON LON : Luminance of the ON segments LOFF : Luminance of the OFF segments Note 2 : The time that the luminance level reaches 90% of the saturation level from 0% when ON signal is applied. Note 3 : The time that the luminance level reaches 10% of the saturation level from 100% when OFF signal is applied. Note 4 : Definition of Driving Voltage VD VD=VCC-VADJ-VBE Assuming that the typical driving waveforms shown below are applied to the LCD Panel at 1/A Duty - 1/B Bias ( A : Duty Number, B : Bias Number ). Driving voltage VD is definded as follows. VD = (Vth1+Vth2) / 2 Vth1 : The voltage VO-P that should provide 50% of the satulation level in the luminance at the segment which the ON signal is applied to. Vth2 : The voltage VO-P that should provide 50% of the satulation level in the luminance at the segment which the OFF signal is applied to.
VO-P
( B-2 )×VO-P / B 1 / ( fF×A ) 1 / fF
〈ON SIGNAL〉
〈OFF SIGNAL〉
DMC20434N-SEW
(AU)
No.97-0209
OPTREX
OPTREX CORPORATION
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3.3.Definition of Viewing Angle and Optimum Viewing Area ･Point ● shows the point where contrast ratio is measured. : θ= 0ﾟ, φ=－ﾟ ･Driving condition : 1/16 Duty, 1/5 Bias, VD=4.5V, fF=46.9Hz
90ﾟ 135ﾟ 45ﾟ
φ
θ
90ﾟ
180ﾟ
10 20 30 40 50
θ
(φ= 0ﾟ） φ 180ﾟ 0ﾟ
225ﾟ 270ﾟ
315ﾟ 270ﾟ
･Area
shows typ. CR≧2
3.4.System Block Diagram
Temperature Chamber Rotation Table (θ,φ) Photometer #1980A WB φ LCD Optical Fiber
θ
Computer
Control Unit & Waveform Generator Halogen bulb
DMC20434N-SEW
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No.97-0209
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OPTREX CORPORATION
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4.I/O Terminal
4.1.Pin Assignment No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Symbol VSS VCC VEE RS R/W E DB0 DB1 DB2 DB3 DB4 DB5 DB6 DB7 EL EL Level － － － H/L H/L H/L H/L H/L H/L H/L H/L H/L H/L H/L － － Power Supply (0V, GND) Power Supply for Logic Power Supply for LCD Drive Register Select Signal Read/Write Select Signal H : Read L : Write Function
Enable Signal (No pull-up Resister) Data Bus Line / Non-connection at 4-bit operation Data Bus Line / Non-connection at 4-bit operation Data Bus Line / Non-connection at 4-bit operation Data Bus Line / Non-connection at 4-bit operation Data Bus Line Data Bus Line Data Bus Line Data Bus Line Power Supply for EL Power Supply for EL
4.2.Example of Power Supply It is recommended to apply a potentiometer for the contrast adjust due to the tolerance of the driving voltage and its temperature dependence.
VCC VR MODULE VSS VSS (0V) VCC (+Voltage)
VEE VR=10～20K Ω
DMC20434N-SEW
(AU)
No.97-0209
OPTREX
OPTREX CORPORATION
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4.3.Block Diagram
DB7 ～ DB0 E R/W RS
8
COM 16
LCDP 20 characters × 4 lines
Control LSI HD44780 or equivalent
SEG 40 SEG 160
4
Column Driver MSM5259 × 4 or equivalent
VCC
VSS
Bias Circuit
To LSI
VEE
EL EL Backlight EL
DMC20434N-SEW
(AU)
No.97-0209
OPTREX
OPTREX CORPORATION
Page 9/15
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5.Test
No change on display and in operation under the following test condition. No. 1 2 3 4 5 6 Parameter High Temperature Operating Low Temperature Operating High Temperature Storage Low Temperature Storage Damp Proof Test Vibration Test Conditions 50℃±2℃, 96hrs (operation state) 0℃±2℃, 96hrs (operation state) 70℃±2℃, 96hrs -20℃±2℃, 96hrs 40℃±2℃, 90～95%RH, 96hrs Total fixed amplitude : 1.5mm Vibration Frequency : 10～55Hz One cycle 60 seconds to 3 directions of X, Y, Z for each 15 minutes 7 Shock Test To be measured after dropping from 60cm high on the concrete surface in packing state. 3 4 3, 4 3, 4 5 Notes
F E B G D A 60cm Concrete Surface C
Dropping method corner dropping A corner : once Edge dropping B,C,D edge : once Face dropping E,F,G face : once
Note 1 : Unless otherwise specified, tests will be conducted under the following condition. Temperature : 20±5℃ Humidity : 65±5% Note 2 : Unless otherwise specified, tests will be not conducted under functioning state. Note 3 : No dew condensation to be observed. Note 4 : The function test shall be conducted after 4 hours storage at the normal temperature and humidity after removed from the test chamber. Note 5 : Vibration test will be conducted to the product itself without putting it in a container.
DMC20434N-SEW
(AU)
No.97-0209
OPTREX
OPTREX CORPORATION
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6.Appearance Standards
6.1.Inspection conditions The LCD shall be inspected under 40W white fluorescent light. The distance between the eyes and the sample shall be more than 30cm. All directions for inspecting the sample should be within 45ﾟagainst perpendicular line.
45ﾟ
6.2.Definition of
