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Data International Co., Ltd.
DATAVISION
APPROVAL SHEET
Customer Part Name Model No.
: : : LCD MODULE DV-20400-S1FBLY/R22
Drawing No. : Approved by : Date :
Approved
Checked
Prepared
Sheet Code:
Ming-Chun Chen
3065010220
5F, No. 25, Lane, 169, Kang-Ning Street.,His Chin Chen, Taipei Hsien, Taiwan (R.O.C.)
T
e
l
:
886-2-26950959
Fax: 886-2-26958620
SPECIFICATIONS FOR LIQUID CRYSTAL DISPLAY MODULE MODEL NO: DV-20400-S1FBLY/R22
CONTENTS 1. SCOPE 2. PRODUCT SPECIFICATIONS 2.1 2.2 2.3 2.4 2.5 2.6 2.7 General Mechanical Characteristics Absolute Maximum Ratings Electrical Characteristics Absolute maximum ratings Optical Characteristics LED Back-light Characteristics ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------3 3 3 4 5 5 6 6 9
3. RELIABILITY 4. OPERATING INSTRUCTIONS 4.1 4.2 4.3 4.4 4.5 4.6 4.7 Input signal Function Voltage Generator Circuit Circuit Block Diagram Timing Characteristics Instruction Description Instruction table Font table
------------------------------------------ 10 ------------------------------------------ 11 ------------------------------------------ 11 ------------------------------------------ 12 ------------------------------------------ 13 ------------------------------------------ 14 ------------------------------------------ 15 ------------------------------------------ 19 ------------------------------------------ 20 ------------------------------------------ 21 ------------------------------------------ 21 ------------------------------------------ 22
5. NOTES 6. OPERATION PRECAUTIONS 7. LCM DIMENSIONS
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SPECIFICATIONS FOR LIQUID CRYSTAL DISPLAY MODULE MODEL NO: DV-20400-S1FBLY/R22
1. SCOPE The DV-20400-S1FBLY/R22, dot-matrix LCD unit of a 5 x 7- dot 20-character 4-line dot-matrix LCD panel, LCD driver, controller LSI and yellow green back-light LED fabricated on a single PCB. Incorporating mask ROM-based character generator and display data RAM in the controller LSI, the unit can efficiently display the desired characters under microprocessor control. 2. PRODUCT SPECIFICATIONS 2.1 General l The LCD of the unit is STN (Super Twisted Nematic) yellow-green Transflective , Normal temperature type. l Low power consumption with the dot-matrix LCD panel and CMOS LSI. Built-in back-light LED with high luminance and stable radiation. l Thin, lightweight design permits easy installation in a variety of equipment. l Allowing for being connected at general-purpose CMOS signal level, the unit can be easily interfaced to a microprocessor with common 4-bit and 8-bit parallel inputs and outputs. l Multiplexing driving : 1/16duty, 1/4bias, 6 o'clock l Built-in character generator ROM and RAM, and display data RAM: Character generator ROM 225 different 5 x 7 dot-matrix character patterns (Alphanumeric and symbols) Character generator RAM 8 different user programmed 5 x 7 dot-matrix patterns Display data RAM 80 x 8 bits l Numerous instructions Display clear, Cursor home, Display ON/OFF, Cursor ON/OFF, Blink character, Cursor shift, Display shift
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SPECIFICATIONS FOR LIQUID CRYSTAL DISPLAY MODULE MODEL NO: DV-20400-S1FBLY/R22
2.2
Mechanical Characteristics
Item Number of Characters Dot dimensions(mm) Dot spacing (mm) Module dimensions (Horizontal x Vertical x Thickness, mm) Viewing area (Horizontal x Vertical, mm) Active area (Horizontal x Vertical, mm) 20 x 4 0.55 x 0.55 0.05
Characteristic
98.0 x 60.0 x 14.5 max. 76.0 x 25.2 70.4 x 20.8
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SPECIFICATIONS FOR LIQUID CRYSTAL DISPLAY MODULE MODEL NO: DV-20400-S1FBLY/R22
2.3
Absolute Maximum Ratings (Without LED back-light)
2.4
Electrical Characteristics (Without LED back-light)
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SPECIFICATIONS FOR LIQUID CRYSTAL DISPLAY MODULE MODEL NO: DV-20400-S1FBLY/R22
2.5
Optical Characteristics
Absolute maximum ratings Item Storage temperature range Operating temperature range Symbol Tst Top Rating -20~70 0~50 Unit C C Remarks No condensation No condensation
2.6 Optical Characteristics 1/16 duty, 1/4 bias Item Driving voltage Symbol Vop Temp. 0 oC 20 o C 50 o C Contrast Frame freq. Response time K f ton toff 20 o C -20 o C Min. 4.50 4.35 4.20 1.34 32 --Typ. 4.80 4.65 4.50 4.99 64 32 117 Max. 5.10 4.95 4.80 5.17 128 250 250 ms -Hz V Unit
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SPECIFICATIONS FOR LIQUID CRYSTAL DISPLAY MODULE MODEL NO: DV-20400-S1FBLY/R22
2.6.1 Definition of optical characteristics * Definition of angles and
Light (When reflected)
Z ( = 0 ) 1 i Y' (= 180 ) X ( = 90 )
2
Sensor
X'
LC panel
Z
Y ( = 0 ) (=90 )
Light (When transmitted)
*Definition of contrast C B1 Brightness of selected portion C= = B 2 Brightness of unselected portion
(%) Dark unselected portion brightness curve (bias voltage applied)
Brightness selected portion brightness curve Bright Operation voltage Vopr (V)
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SPECIFICATIONS FOR LIQUID CRYSTAL DISPLAY MODULE MODEL NO: DV-20400-S1FBLY/R22
* Definition of viewing angles 1 and 2
Contrast C
Cmax.
2.0
1
2
Viewing angle
(
fixed)
Note : Optimum vision with the naked eye and viewing angle at Cmax above are not always the same. * Definition of response time
1/f FRM
V opr Voltage 0 (V)
Unselected state (display OFF)
Selected state (display ON)
Unselected state (display OFF) 10%
Dark Brightness Bright
t on t off 100% 90%
Vop : Operating voltage (V) fFRM : Frame frequency (Hz)
ton : Response time (rise) (ms) toff : Response time (fall) (ms)
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SPECIFICATIONS FOR LIQUID CRYSTAL DISPLAY MODULE MODEL NO: DV-20400-S1FBLY/R22
2.7 LED Back-light Characteristics 2.7.1 Absolute maximum ratings Ta = 25C Item Forward voltage Symbol Vf Yellow Green If=280mA, *Luminous Intensity Peak Emission Wavelength Spectrum Radiation Bandwidth Reverse Current IR Yellow Green Note: * Measured at the bare LED back-light unit. IV Yellow Green P If=280mA, -Yellow Green If=280mA, -Yellow Green VR=8V, --0.28 mA 30 -nm 573 -nm -470 -LUX Condition If=280mA, 3.8 4.1 4.4 V Min. Typ. Max. Unit
2.7.2 LED Maximum Operating Range
Item Power Dissipation Forward Current Reverse Voltage
Symbol PAD IF VR
Y ellow Green 2.2 500 8
Unit W mA V
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SPECIFICATIONS FOR LIQUID CRYSTAL DISPLAY MODULE MODEL NO: DV-20400-S1FBLY/R22
3. RELIABILITY 3.1 Reliability Test item Operation at high temperature and humidity Operation at high temperature Test condition 40 o C2 o C 90%RH for 500hours Evaluation and assessment No abnormalities in functions* and appearance** No abnormalities in functions* and appearance** No abnormalities in functions* and appearance** No abnormalities in functions* and appearance** No abnormalities in functions* and appearance** No abnormalities in functions* and appearance**
60 o C2 o C for 500 hours -20 ~ +60 o C Left for 1 hour at each temperature, transition time 5 min, repeated 10times -202 o C for 500 hours
Heat shock
Low temperature
Vibration
Sweep for 1 min at 10 Hz, 55Hz, 10Hz, amplitude 1.5mm 2 hrs each in the X,Y and Z directions Dropped onto a board from a height of 10cm
Drop shock
* Dissipation current, contrast and display functions ** Polarizing filter deterioration, other appearance defects 3.2 Liquid crystal panel service life 100,000 hours minimum at 25 o C10 o C Definition of panel service life l Contrast becomes 30% of initial value l Current consumption becomes three times higher than initial value l Remarkable alignment deterioration occurs in LCD cell layer l Unusual operation occurs in display functions
3.3
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SPECIFICATIONS FOR LIQUID CRYSTAL DISPLAY MODULE MODEL NO: DV-20400-S1FBLY/R22
4. OPERATING INSTRUCTIONS 4.1 Input signal Function
NO. 1 2 3 4 5 6 7-14 15 16
Symbol VSS VCC V0 RS R/W E DB0-DB7 LED A LED K Ground (0V)
Function
Power supply for Logic circuit Power Supply for Driving the LCD Data / Instruction select Read / Write select Enable signal Data Bus line Power supply for LED Power supply for LED
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SPECIFICATIONS FOR LIQUID CRYSTAL DISPLAY MODULE MODEL NO: DV-20400-S1FBLY/R22
4.2 Voltage Generator Circuit
+5V
VCC
VCC-V0
LCM
VCC VR
V0
Vss
VCC-V0 : LCD Driving Voltage VR : 10K~ 20K
LEDA(+) LEDK(-)
LED Back-light
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SPECIFICATIONS FOR LIQUID CRYSTAL DISPLAY MODULE MODEL NO: DV-20400-S1FBLY/R22
4.3 Circuit Block Diagram
COM 1~16
LCD Panel
(20 Characters x 4 Lines Dot Matrix)
COM 1'~16'
Driver/Controller LSI
SEG 41~120
SEG 121~200
SEG 1~40
Segment Driver
Segment Driver
VSS, VCC, V0, RS, R/W, E, DB0~DB7 (INTERFACE) Controller Signal to MPU
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SPECIFICATIONS FOR LIQUID CRYSTAL DISPLAY MODULE MODEL NO: DV-20400-S1FBLY/R22
4.4 Timing Characteristics
Write Mode Timing Diagram
Read Mode Timing Diagram
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SPECIFICATIONS FOR LIQUID CRYSTAL DISPLAY MODULE MODEL NO: DV-20400-S1FBLY/R22
4.5 Instruction Description
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SPECIFICATIONS FOR LIQUID CRYSTAL DISPLAY MODULE MODEL NO: DV-20400-S1FBLY/R22
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SPECIFICATIONS FOR LIQUID CRYSTAL DISPLAY MODULE MODEL NO: DV-20400-S1FBLY/R22
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SPECIFICATIONS FOR LIQUID CRYSTAL DISPLAY MODULE MODEL NO: DV-20400-S1FBLY/R22
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SPECIFICATIONS FOR LIQUID CRYSTAL DISPLAY MODULE MODEL NO: DV-20400-S1FBLY/R22
4.6 Instruction table
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4.7 Font table
Upper 4bit Lower 4bit
0066-22
LLLL
LLHL LLHH LHLL LHLH LHHL LHHH HLLL HLLH HLHL HLHH HHLL HHLH HHHL HHHH
LLLL
CG RAM (1)
LLLH
(2)
LLHL
(3)
LLHH
(4)
LHLL
(5)
LHLH
(6)
LHHL
(7)
LHHH
(8)
HLLL
(1)
HLLH
(2)
HLHL
(3)
HLHH
(4)
HHLL
(5)
HHLH
(6)
HHHL
(7)
HHHH
(8)
Thu Dec 13 15:03:40 2001
SPECIFICATIONS FOR LIQUID CRYSTAL DISPLAY MODULE MODEL NO: DV-20400-S1FBLY/R22
5. NOTES Safety l If the LCD panel breaks, be careful not to get the liquid crystal in your mouth. If the liquid crystal touches your skin or clothes, wash it off immediately using soap and plenty of water. Handling l Avoid static electricity as this can damage the CMOS LSI. l The LCD panel is plate glass; do not hit or crush it. l Do not remove the panel or frame from the module. l The polarizing plate of the display is very fragile; handle it very carefully Mounting and Design l Mount the module by using the specified mounting part and holes. l To protect the module from external pressure, leave a small gap by placing transparent plates (e.g. acrylic or glass ) on the display surface, frame, and polarizing plate l Design the system so that no input signal is given unless the power-supply voltage is applied. l Keep the module dry. Avoid condensation, otherwise the transparent electrodes may break. Storage l Store the module in a dark place where the temperature is 25 o C10 o C and the humidity below 65% RH. l Do not store the module near organic solvents or corrosive gases. l Do not crush, shake, or jolt the module (including accessories). Cleaning l Do not wipe the polarizing plate with a dry cloth, as it may scratch the surface. l Wipe the module gently with soft cloth soaked with a petroleum benzine. l Do not use ketonic solvents (ketone and acetoe) or aromatic solvents (toluene and xylene), as they may damage the polarizing plate.
6. OPERATION PRECAUTIONS Any changes that need to be made in this specification or any problems arising from it will be dealt with quickly by discussion between both companies.
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