Website: www.displaytech.com.hk Product: 128240C-RGB Series LCD Module (240 x 128 DOTS)

Displaytech Ltd LCD MODULE 128240C-RGB 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.

Displaytech Ltd LCD MODULE 128240C-RGB SERIES Version : 1.1 P 3 of 21 • 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 LCD MODULE 128240C-RGB SERIES Version : 1.1 P 4 of 21 Displaytech Ltd LCD MODULE 128240C-RGB 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...

Displaytech Ltd LCD MODULE 128240C-RGB SERIES Version : 1.1 P 5 of 21 NOTE 3: CURRENT CONSUMPTION (I LCD) Displaytech Ltd LCD MODULE 128240C-RGB 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.

Displaytech Ltd  BLOCK DIAGRAM

Displaytech Ltd LCD MODULE 128240C-RGB SERIES Version : 1.1 P 11 of 21 ♦ ABSOLUTE MAXIMUM RATING CIRCUIT DIAGRAM 1. AVERAGE LUMINOUS INTENSITY IS THE AVERAGE VALUE OF THE NINE INDICATED POINTS AS SHOWN. 2. MEASUREMENT INSTRUMENT: BM-7, APERTURE: ' 10mm.

Displaytech Ltd LCD MODULE 128240C-RGB 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

Displaytech Ltd LCD MODULE 128240C-RGB 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

Displaytech Ltd LCD MODULE 128240C-RGB SERIES Version : 1.1 P 14 of 21

Displaytech Ltd LCD MODULE 128240C-RGB 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

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

Displaytech Ltd LCD MODULE 128240C-RGB SERIES Version : 1.1 P 17 of 21

Displaytech Ltd LCD MODULE 128240C-RGB 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...

Displaytech Ltd LCD MODULE 128240C-RGB SERIES Version : 1.1 P 19 of 21 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. 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...

Displaytech Ltd LCD MODULE 128240C-RGB SERIES Version : 1.1 P 20 of 21 Since this module uses a CMOS LSI, the same careful attention should be paid to electrostatic discharge as for an ordinary CMOS IC. 1. Make certain that you are grounded when handing LCM. 2. Before remove LCM from its packing case or incorporating it into a set, be sure the module and your body have the same electric potential. 3. When soldering the terminal of LCM, make certain the AC power source for the soldering iron does not leak. 4. When using an electric screwdriver to attach LCM, the screwdriver should be of ground...

Displaytech Ltd LCD MODULE 128240C-RGB SERIES Version : 1.1 P 21 of 21 When storing LCDs as spares for some years, the following precautions 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...