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64128M-Series

64128M-Series

Product catalog summary

General Specification
The 64128M Series LCD Module features a 128 x 64 dot display with a dot size of 0.48mm x 0.48mm. The view area is 70.00mm x 40.00mm, and the module size is 77.40mm x 52.40mm x 10.50mm. It uses an FSTN LCD type with a transflective polarizer and offers viewing angles at 6 o'clock and 12 o'clock. The backlight is LED with an external power driver and white color. The controller and LCD driver is the ST7565R-G, with a driving method of 1/65 Duty, 1/9 Bias.

Absolute Maximum Ratings
At 25°C and VSS=0V, the power supply for logic ranges from -0.3V to 3.6V, and for LCD from -0.3V to 13.5V. The input voltage ranges from -0.3V to VDD+0.3V. The LED backlight supply voltage is 3.2V. Operating temperatures range from 0°C to 50°C, with storage temperatures from -10°C to 60°C. Wide operating temperatures range from -20°C to 70°C, and wide storage temperatures from -30°C to 80°C.

Electrical Characteristics
At 25°C and VDD=3.0V, the power supply for LCM is between 2.85V and 3.15V. Input voltage levels are defined as VIL (low) and VIH (high). The LCD module driving voltage is 9.0V at 25°C. The supply current for LCM is 0.5mA, and for LED backlight, it is 80mA.

Electro-Optical Characteristics
The recommended operating voltage is 9.0V at 25°C. Response times are Tr (rise time) at 218-268ms and Tf (fall time) at 115-165ms. Viewing angles are defined with various degrees at different orientations. Current consumption is noted at 82uA.

Backlight Specification
The backlight dimensions are 77.40mm x 52.40mm x 9.30mm, with a viewing area of 72.00mm x 41.00mm. It uses 4 SMT LEDs with a forward voltage of 3.2V and an average luminous intensity of 250 cd/m2. Maximum ratings include a forward current of 120mA and a reverse voltage of 5V.

Quality Guarantee
Inspection standards include functional tests, appearance inspections, and packing specifications. Inspection conditions involve specific lighting and viewing angles. The AQL inspection level follows MIL-STD-105D with major defects at 0.65% and minor defects at 2.5%.

Precautions for Using LCD Modules
Handling precautions include ESD protection, avoiding mechanical shock, and careful handling of the polarizer. Power supply precautions emphasize observing maximum ratings and preventing reverse polarity. Operating precautions advise against plugging or unplugging the module when powered and minimizing cable length between the module and host MPU.

Electrical Precautions:
Avoid arcing within cables or displays and operate within specified temperature limits.

Mechanical/Environmental Precautions:
Avoid improper soldering and use of flux cleaners. Mount modules to avoid torque and stress. Handle LCD surfaces carefully to prevent scratches. Use anti-static procedures. Prevent moisture build-up and adhere to storage conditions. Avoid direct sunlight. Handle liquid crystal material with care.

Storage Precautions:
Avoid direct sunlight and fluorescent light. Store in original conditions to prevent defects.

Handling LCD Modules:
Maintain specified temperature ranges. Avoid contact with hard objects. Use recommended cleaning agents. Prevent long-term contact with water. Avoid oils and fats. Prevent condensation damage. Handle glass carefully to avoid chipping.

Installing LCD Modules:
Use protective plates and ensure proper spacing to avoid stress.

Handling Precautions:
Avoid alterations or modifications. Handle with care to prevent damage.

Electro-Static Discharge Control:
Ground yourself when handling. Ensure equal electric potential. Use grounded tools.

Soldering Precautions:
Follow specified temperature and time. Limit detachment of panels. Ensure complete melting of solder.

Operational Precautions:
Adjust voltage for optimal viewing. Avoid exceeding voltage limits. Be aware of temperature effects on response time. Prevent condensation on terminals.

Storage:
Store in sealed bags in dark places. Avoid extreme temperatures.

Safety:
Dispose of damaged LCDs properly. Wash off any leaked liquid crystal material.

Limited Warranty:
One-year warranty for functional defects. Cosmetic defects must be reported within 90 days. Warranty void if precautions are disregarded.

Return Policy:
Modules must be returned with a description of defects. Customer-installed connectors must be removed without damage.

Revision Record:
Version 1.0 - Initial revision (7 March 2008)
Version 1.1 - Power supply correction (10 June 2008)

Catalog excerpts

Website: www.displaytech.com.hk Product: 64128M Series LCD Module (128 x 64 DOTS)

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Displaytech Ltd LCD MODULE 64128M SERIES Version : 1.1 P 2 of 21 ■ ABSOLUTE MAXIMUM RATINGS ■ PRECAUTIONS FOR USING LCD MODULES 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.

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Displaytech Ltd LCD MODULE 64128M SERIES Version : 1.1 P 3 of 21

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Displaytech Ltd LCD MODULE 64128M SERIES Version : 1.1 P 4 of 21 Displaytech Ltd LCD MODULE 64128M SERIES Version : 1.1 P 4 of 21 NOTE 1: DEFINITION OF VIEWING ANGLE AND DIRECTION NOTE 2: 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...

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Displaytech Ltd LCD MODULE 64128M SERIES Version : 1.1 P 5 of 21 NOTE 3: CURRENT CONSUMPTION (I LCD) Displaytech Ltd LCD MODULE 64128M SERIES Version : 1.1 P 5 of 21 Conditions:l.Driving waveform: static waveform. 2.Voltage applied to all segments NOTE 4: RESPONSE TIME (Tr, Tf) NOTE 5: CONTRAST RATIO (CR) Measuring Methode Of Capacitance Voltage applied to all segments.

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Displaytech Ltd LCD MODULE 64128M SERIES Version : 1.1 P 11 of 21 ♦ ABSOLUTE MAXIMUM RATING TESTING POINT CIRCUIT DIAGRAM 1. AVERAGE LUMINOUS INTENSITY IS THE AVERAGE VALUE OF THE NINE INDICATED POINTS AS SHOWN. 2. MEASUREMENT INSTRUMENT: BM-7, APERTURE: ' 10mm.

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Displaytech Ltd LCD MODULE 64128M SERIES Version : 1.1 P 12 of 21 • FUNCTION TEST • APPEARANCE INSPECTION • PACKING SPECIFICTION • Put under the lamp (20w*2) at a distance 100mm from the LCD Modules. • Tilt upright 45 degree by the front (back) to inspect LCD appearance. • SAMPLING METHOD • SAMPLING PLAN • MAJOR DEFECT • MINOR DEFECT • GENERAL LEVEL 0.65% (MAJOR) 2.5% (MINOR) II/NORMAL View area Viewing boundary

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Displaytech Ltd LCD MODULE 64128M SERIES Version : 1.1 P 13 of 21 1) FUNCTIONAL TEST STANDARD Inspection Standard Description Defect type Display wrong pattern Display segment open Dimsegment I Dimsegment Reject Wrong LCD viewing direction Pattern parallelism

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Displaytech Ltd LCD MODULE 64128M SERIES Version : 1.1 P 15 of 21 Standard description of inspection Defect type Line defect Finger print PCB/COB specification PCB deformity Deformity at PCB edge, damage circuit. Damage excess 2x2mm at the PCB corner Scratch on PCB coat/leakage coat on PCB surface Open circuit Color different from one side to another side. Repaired solder mask area Scratch circuit, damage Circuit Bezel specification

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Standard description of inspection h≦0.01 mm/mm h>0.01 mm/mm Standard Defect type Accept Reject MIN 3.10 Void gap between bezel and PCB Bezel clip incorrectly 4 Solder specification 4.1 Wrong component 4.2 Broken component Reject Reject Component legs extend beyond the pad and Legs >pad distance(w) on solder area >W2 Component legs extend beyond the pad and Legs >pad distance(w) on solder area 1/4W 4.5 CHIP components hoist≦0.5mm 4.6 CHIP components hoist>0.5mm Accept Reject

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Displaytech Ltd LCD MODULE 64128M SERIES Version : 1.1 P 17 of 21

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Displaytech Ltd LCD MODULE 64128M SERIES Version : 1.1 P 18 of 21 ■ PRECAUTIONS FOR USING LCD MODULES 1. This device is susceptible to Electro-Static Discharge (ESD) damage. Observe Anti-Static precautions. 2. The display panel is made of glass. Do not subject it to a mechanical shock by dropping it or impact. 3. 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. 4. Do not apply excessive force to the display surface or the adjoining areas since this...

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◆ 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 (below 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....

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Displaytech Ltd LCD MODULE 64128M SERIES Version : 1.1 P 20 of 21 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 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...

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Displaytech Ltd LCD MODULE 64128M SERIES Version : 1.1 P 21 of 21 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 desiccant. 2. Store them in a dark place. Do not expose to sunlight or fluorescent light, keep the temperature between 0°C and 35°C. 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.) • Do not leave them for more than 168hrs. at 60°C. • Should not be left for more...

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64128M-Series

64128M-Series

Catalog excerpts

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