128240CFCBW-RGB

Website: www.displaytech.com.hk LCD Module Product Specification Product: 128240C-RGB Series LCD Module (240 x 128 DOTS) Displaytech Ltd LCD MODULE 128240C-RGB SERIES Version : 1.1 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. 2 October 2008. Displaytech Ltd LCD MODULE 128240C-RGB SERIES Version : 1.1 P 3 of 21  GENERAL SPECIFICATION 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 Contents 240 x 128 DOTS 0.22 x 0.22 70.0 mm x 35.0mm 77.4 mm x 52.4mm x 9.3 mm FSTN Transflective 6 / 12 O’clock LED External Power RGB 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 VLED 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 VO-VSS 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 ------14.5 --2.0 --80 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 LCD MODULE 128240C-RGB SERIES Version : 1.1 P 4 of 21  ELECTRO-OPTICAL CHARACTERISTICS NO Item Symbol 1 Recommended Operating Voltage VLCD 2 3 4 5 NOTE 1: Measuring Condition =0 Φ= 0 Current Consumption 14.5 15 --------------------------------- --1.869 ----2.116 ----240 ----200 --40 35 30 30 --------------------------------- --- 18 --- Vsat =0 Φ= 0 Tr =0 Φ= 10 Tf =0 Φ= 10     Φ=0° Φ=180° Φ=90° Φ=270° 0 25 40 0 25 40 0 25 40 0 25 40 25 25 25 25 ILCD Hz=64 25 2) Max 14 =0 Φ= 0 Response time STD.Value Min Typ 25 Vth Operating Voltage Viewing Angle (Cr °C Unit Remark V Note1 Note2 ms Note4 Deg Note1 uA Note3 DEFINITION OF VIEWING ANGLE AND DIRECTION Z =0° Detector  12H Φ =180° 3H Φ =90° 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 128240C-RGB SERIES Version : 1.1 CURRENT CONSUMPTION (I LCD) Conditions: 1.Driving waveform: static waveform. NOTE 4: RESPONSE TIME (Tr, Tf) NOTE 5: CONTRAST RATIO (CR) 5.1 POSITIVE TYPE: CONTRAST RATIO = 5.2 BRIGHTNESS AT VOP (NON-SELECTED) BRIGHTNESS AT VOP (SELECTED) NEGATIVE TYPE: CONTRAST RATIO = NOTE 6: 2.Voltage applied to all segments CAPACITANCE (C) Conditions: Voltage applied to all segments. BRIGHTNESS AT VOP (SELECTED) BRIGHTNESS AT VOP (NON-SELECTED) P 5 of 21 Displaytech Ltd  BLOCK DIAGRAM LCD MODULE 128240C-RGB SERIES Version : 1.1 P 6 of 21 Displaytech Ltd LCD MODULE  MECHANCIAL DRAWING 128240C-RGB SERIES Version : 1.1 P 7 of 21 Displaytech Ltd LCD MODULE 128240C-RGB SERIES Version : 1.1 P 8 of 21 Displaytech Ltd LCD MODULE 128240C-RGB SERIES Version : 1.1 P 9 of 21 Displaytech Ltd LCD MODULE  BACKLIGHT DRAWING 128240C-RGB SERIES Version : 1.1 P 10 of 21 Displaytech Ltd LCD MODULE 128240C-RGB SERIES Version : 1.1 P 11 of 21  BACKLIGHT SPECIFICATION ◆ MECHANICAL SPECIFICATIONS ITEM OUTLINE SIZE (LxWxH) VIEWING AREA (LxW) CONTACT PIN PITCH/LENGTH NO.OF LED SMT NOMINAL DIMENSIONS 77.40 x 52.40x 9.30 72.00 x 41.00 NIL 4 UNIT mm mm mm --- ◆ ELECTRICAL/OPTICAL CHARACTERISTICS (Ta=25 C, If=80mA typ.) ° MODE COLOR RED CHROMATICITY COORDINATE AVERAGE LUMINOUS INTENSITY (IV) FORWARD VOLTAGE (Vf) X=0.6933 Y=0.3000 MIN: 40 TYP: 50 3.2 typ PARAMETER PURE GREEN X=0.1964 Y=0.7334 MIN: 80 TYP: 90 3.2 typ UNIT BLUE X=0.1415 Y=0.0619 MIN: 20 TYP: 30 3.2 typ ----cd/m2 V ◆ ABSOLUTE MAXIMUM RATING ITEM COLOR RED FORWARD CURRENT REVERSE VOLTAGE POWER DISSIPATION OPERATING TEMPERATURE STORAGE TEMPERATURE TESTING POINTS VALUE PURE GREEN 120mA 5V 384mW -20°C TO 70°C -30°C TO 80°C UNIT BLUE --If Vr Pd Top Tstg CIRCUIT DIAGRAM REMARK: 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  QUALITY GUARANTEE ◆ PURPOSE: It is to define the inspection standard of LCD modules ◆ PRODUCT STANDARD 1) INSPECTION AND TEST • FUNCTION TEST • APPEARANCE INSPECTION • PACKING SPECIFICTION 2) INSPECTION CONDITION • 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. 3) AQL INSPECTION LEVEL • SAMPLING METHOD • SAMPLING PLAN • MAJOR DEFECT • MINOR DEFECT • GENERAL LEVEL LAMP : MIL-STD-105D : SINGLE : 0.65% (MAJOR) : 2.5% (MINOR) : II/NORMAL OPERATOR LCM ◆ DISPLAY AREA DEFINITION: View area Viewing boundary Displaytech Ltd LCD MODULE 128240C-RGB SERIES Version : 1.1 P 13 of 21 ◆ INSPECTION STANDARD 1) FUNCTIONAL TEST STANDARD Item Inspection Standard Description 1 LCD has no display 2 LCM display do not change 3 Display wrong pattern 4 Display segment open Standard Defect type Reject MAJ Reject MAJ Reject MAJ Missing segment Reject MAJ Reject MAJ Reject See sample See sample MAJ Missing segment 5 Display dim segment 6 Wrong LCD viewing direction 7 Dim Display 8 LCD color variation Dim segment Dim segment Pattern parallelism L ≧20mm ≧30mm ≧40mm ≧50mm ≧60mm ≧70mm ≧80mm ≧90mm ≧100mm 9 Acceptable range 0.25 1 W 4 1 Ø> W 4 Ø< MAJ MAJ Accept QTY 1 1 Accept Accept 1 Accept 1 Reject MIN Displaytech Ltd Item LCD MODULE 128240C-RGB SERIES Inspection Standard Description Draw Standard Defect type X 11 Standard y 1 ≧ b 4 LCD display Broken segment(dots) Version : 1.1 P 14 of 21 QTY 1 ≧ a 4 (X or y) ≧0.2mm 1 1 b ≦ a 4 4 1 1 ≦ b ≦ a 5 5 x+ y Ø= 2 ≦ 12 13 14 15 16 LCD display Black spot or White spot LCD display excess black line or white line Ø0.025) 1 Reject MIN 1 Reject MIN 1 Accept 2 Accept QTY 2 1 0 0 QTY 2 1 0 0 Backlight not function LED not function or dim Backlight defect (dirt, scratch) 2) COSMETIC INSPECTION STANDARD Item Standard description of inspection 1 LCD inspection item Accept Accept Accept Reject Reject MIN MAJ Accept Accept Reject Reject Reject Reject Reject MIN MAJ MAJ MIN MIN Standard Defect type 1.1 LCD color variation See sample MIN 1.2 LCD broken Reject MAJ 1.3 Wrong polarizer of LCD 1.4 Spot on LCD surface Scratch on LCD Reject Reject MAJ MAJ 1.5 Ø= x+ y 2 LCD scratch 1.6 Scratch depth see sample x y Scratch =L Scratch = Ø Ø0.25 1 Reject 0.01 mm/mm 3.6 Bezel bow or twist d1-d2≦tolerance 3.7 Scratch on bezel d1-d2>tolerance Accept QTY W Not defined W≦0.15 Accept Reject MIN Face L L≦3 W≦0.20 2 L≦2 W≦0.3 2 - 3.8 See Sample W>0.3 side 3.9 Twist angle Standard Defect type Accept Reject MIN Accept QTY L - W W≦0.2 except L≦3 W≦0.25 2 L≦2 W≦0.3 2 See Sample Accept α=45º+5º 3.10 Void gap between bezel and PCB Bezel clip incorrectly Reject 3.11 Reject MIN MIN NG 4 Solder specification 4.1 Wrong component 4.2 Broken component Reject Reject MAJ MAJ Component legs extend beyond the pad and Legs >pad distance(w) on solder area >W2 Accept Component legs extend beyond the pad and Legs >pad distance(w) on solder area 0.5mm Accept Reject MIN Mis-alignment MIN 4.3 Component Offset Component assembly defect Displaytech Ltd Item LCD MODULE 128240C-RGB SERIES Version : 1.1 P 17 of 21 Standard description of inspection 4.7 Components hoist 4.8 Switch (socket) hoist 4.9 Components cold solder or incomplete solder Solder PAD tilt up, but height (h) less than Solder PAD thickness (a) 4.10 h≦2.0mm h>2.0mm h≦0.5mm h>0.5mm Standard Defect type Accept Reject MIN Accept Reject MIN Reject MAJ Accept Excess solder above components 4.11 Reject Min 4.12 Reject MIN 4.13 Solder area less than soldering PAD Area by 2/3 Trimmed pin length beyond 0.09inch (2.3mm) Reject MIN 4.14 Reject Min Reject Reject Reject Reject MAJ MIN MAJ MIN Insufficient solder below components height or less than diameter 5 5.1 5.2 5.3 5.4 Packing specification Wrong carton mark. Carton mark problem Carton damage extend than 150mm Carton damage, scratch more 50mm, less 150mm. Displaytech Ltd LCD MODULE 128240C-RGB SERIES Version : 1.1 P 18 of 21  PRECAUTIONS FOR USING LCD MODULES ◆ HANDLING PRECAUTIONS 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. This device is susceptible to Electro-Static Discharge (ESD) damage. Observe Anti-Static precautions. The display panel is made of glass. Do not subject it to a mechanical shock by dropping it or impact. 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. Do not apply excessive force to the display surface or the adjoining areas since this may cause the color tone to vary. The polarizer covering the display surface of the LCD module is soft and easily scratched. Handle this polarizer carefully. If the display surface becomes contaminated, breathe on the surface and gently wipe it with a soft dry cloth. If it is heavily contaminated, moisten cloth with one of the following solvents: • Isopropyl alcohol • Ethyl alcohol Solvents other than those above-mentioned may damage the polarizer. Especially, do not use the following. • Water • Ketone • Aromatic solvents Exercise care to minimize corrosion of the electrode. Corrosion of the electrodes is accelerated by water droplets, moisture condensation or a current flow in a high-humidity environment. Install the LCD Module by using the mounting holes. When mounting the LCD module make sure it is free of twisting, warping and distortion. In particular, do not forcibly pull or bend the I/O cable or the backlight cable. Do not attempt to disassemble or process the LCD module. NC terminal should be open. Do not connect anything. If the logic circuit power is off, do not apply the input signals. To prevent destruction of the elements by static electricity, be careful to maintain an optimum work environment. • Be sure to ground the body when handling the LCD modules. • Tools required for assembling, such as soldering irons, must be properly grounded. • To reduce the amount of static electricity generated, do not conduct assembling and other work under dry conditions. • The LCD module is coated with a film to protect the display surface. Exercise care when peeling off this protective film since static electricity may be generated. ◆ POWER SUPPLY PRECAUTIONS: 1. 2. 3. 4. Identify and, at all times, observe absolute maximum ratings for both logic and LC drivers. Note that there is some variance between models. Prevent the application of reverse polarity to VDD and VSS, however briefly. Use a clean power source free from transients. Power-up conditions are occasionally “jolting” and may exceed the maximum ratings of the modules. The VDD power of the module should also supply the power to all devices that may access the display. Don’t allow the data bus to be driven when the logic supply to the module is turned off. ◆ OPERATING PRECAUTIONS: 1. 2. 3. 4. DO NOT plug or unplug the module when the system is powered up. Minimize the cable length between the module and the host MPU. For models with EL backlights, do not disable the backlight by interrupting the HV line. Unload inverters produce voltage extremes that may arc within a cable or at the display. Operate the module within the limits of the modules temperature specifications. ◆ MECHANICAL/ENVIRONMENTAL PRECAUTIONS: 1. 2. 3. 4. 5. 6. 7. Improper soldering is the major cause of module difficulty. Use of flux cleaner is not recommended as they may seep under the elastomeric connection and cause display failure. Mount the module so that it is free from torque and mechanical stress. Surface of the LCD panel should not be touched or scratched. The display front surface is an easily scratched, plastic polarizer. Avoid contact and clean only when necessary with soft, absorbent cotton dampened with petroleum benzene. Always employ anti-static procedure while handling the module. Prevent moisture build-up upon the module and observe the environmental constraints for storage temperature and humidity. Do not store in direct sunlight If leakage of the liquid crystal material should occur, avoid contact with this material, particularly ingestion. If the body or clothing becomes contaminated by the liquid crystal material, wash thoroughly with water and soap Displaytech Ltd LCD MODULE 128240C-RGB SERIES Version : 1.1 P 19 of 21 ◆ 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. If the LCD modules have been operating for a long time showing the same display patterns, the display patterns may remain on the screen as ghost images and a slight contrast irregularity may also appear. A normal operating status can be regained by suspending use for some time. It should be noted that this phenomenon does not adversely affect performance reliability. To minimize the performance degradation of the LCD modules resulting from destruction caused by static electricity etc., exercise care to avoid holding the following sections when handling the modules. • Exposed area of the printed circuit board. • Terminal electrode sections.  USING LCD MODULES ◆ Liquid Crystal Display Modules LCD is composed of glass and polarizer. Pay attention to the following items when handling. Please keep the temperature within specified range for use and storage. Polarization degradation, bubble generation or polarizer peel-off may occur with high temperature and high humidity. 2. Do not touch, push or rub the exposed polarizers with anything harder than an HB pencil lead (glass, tweezers, etc.). 3. N-hexane is recommended for cleaning the adhesives used to attach front/rear polarizers and reflectors made of organic substances that will be damaged by chemicals such as acetone, toluene, ethanol and isopropylalcohol. 4. When the display surface becomes dusty, wipe gently with absorbent cotton or other soft material like chamois soaked in petroleum benzin. Do not scrub hard to avoid damaging the display surface. 5. Wipe off saliva or water drops immediately, contact with water over a long period of time may cause deformation or color fading. 6. Avoid contacting oil and fats. 7. Condensation on the surface and contact with terminals due to cold will damage, stain or dirty the polarizers. After products are tested at low temperature they must be warmed up in a container before coming is contacting with room temperature air. 8. Do not put or attach anything on the display area to avoid leaving marks on. 9. Do not touch the display with bare hands. This will stain the display area and degradate insulation between terminals (some cosmetics are determinated to the polarizers). 10. As glass is fragile. It tends to become or chipped during handling especially on the edges. Please avoid dropping or jarring. 1. ◆ Installing LCD Modules 1. When assembling the LCM into other equipment, the spacer to the bit between the LCM and the fitting plate should have enough height to avoid causing stress to the module surface, refer to the individual specifications for measurements. The measurement tolerance should be ±0.1mm. ◆ Precaution for Handing LCD Modules 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 connector. 5. Except for soldering the interface, do not make any alterations or modifications with a soldering iron. 6. Do not drop, bend or twist LCM. Displaytech Ltd LCD MODULE 128240C-RGB SERIES Version : 1.1 P 20 of 21 ◆ Electro-Static Discharge Control 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 potentiality to minimize as much as possible any transmission of electromagnetic waves produced sparks coming from the commutator of the motor. 5. As far as possible make the electric potential of your work clothes and that of the workbench the ground potential. 6. To reduce the generation of static electricity is careful that the air in the work is not too dried. A relative humidity of 50%-60% is recommended. ◆ Precaution for soldering to the LCM 1. Observe the following when soldering lead wire, connector cable and etc. to the LCM. • Soldering iron temperature: 280°C ± 10°C. • Soldering time: 3-4 sec. • Solder: eutectic solder. If soldering flux is used, be sure to remove any remaining flux after finishing to soldering operation. (This does not apply in the case of a non-halogen type of flux.) It is recommended that you protect the LCD surface with a cover during soldering to prevent any damage due to flux spatters. 2. When soldering the electroluminescent panel and PC board, the panel and board should not be detached more than three times. This maximum number is determined by the temperature and time conditions mentioned above, though there may be some variance depending on the temperature of the soldering iron. 3. When remove the electroluminescent panel from the PC board, be sure the solder has completely melted, the soldered pad on the PC board could be damaged. ◆ Precautions for Operation 1. 2. 3. 4. 5. 6. Viewing angle varies with the change of liquid crystal driving voltage (VO). Adjust VO to show the best contrast. Driving the LCD in the voltage above the limit shortens its life. Response time is greatly delayed at temperature below the operating temperature range. However, this does not mean the LCD will be out of the order. It will recover when it returns to the specified temperature range. If the display area is pushed hard during operation, the display will become abnormal. However, it will return to normal if it is turned off and then back on. Condensation on terminals can cause an electrochemical reaction disrupting the terminal circuit. Therefore, it must be used under the relative condition of 40°C, 50% RH. When turning the power on, input each signal after the positive/negative voltage becomes stable. Displaytech Ltd LCD MODULE 128240C-RGB SERIES Version : 1.1 P 21 of 21 ◆ Storage 1. 2. 3. 4. When storing LCDs as spares for some years, the following precautions are necessary. Store them in a sealed polyethylene bag. If properly sealed, there is no need for desiccant. Store them in a dark place. Do not expose to sunlight or fluorescent light, keep the temperature between 0°C and 35°C. 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.) Environmental conditions: • Do not leave them for more than 168hrs. at 60°C. • Should not be left for more than 48hrs. at -20°C. ◆ Safety 1. 2. It is recommended to crush damaged or unnecessary LCDs into pieces and wash them off with solvents such as acetone and ethanol, which should later be burned. If any liquid leaks out of a damaged glass cell and comes in contact with the hands, wash off thoroughly with soap and water. ◆ Limited Warranty Unless agreed between DISPLAYTECH and customer, DISPLAYTECH will replace or repair any of its LCD modules that are found to be functionally defective when inspected in accordance with DISPLAYTECH LCD acceptance standards (copies available upon request) for a period of one year from date of shipments. Cosmetic/visual defects must be returned to DISPLAYTECH within 90 days of shipment. Confirmation of such date shall be based on freight documents. The warranty liability of DISPLAYTECH limited to repair and/or replacement on the terms set forth above. DISPLAYTECH will not be responsible for any subsequent or consequential events. ◆ Return LCM under warranty No warranty can be granted if the precautions stated above have been disregarded. The typical examples of violations are : • Broken LCD glass. • PCB eyelet’s damaged or modified. • PCB conductors damaged. • Circuit modified in any way, including addition of components. • PCB tampered with by grinding, engraving or painting varnish. • Soldering to or modifying the bezel in any manner. Module repairs will be invoiced to the customer upon mutual agreement. Modules must be returned with sufficient description of the failures or defects. Any connectors or cable installed by the customer must be removed completely without damaging the PCB eyelet’s, conductors and terminals.  REVISION RECORD VERSION 1.0 1.1 CHANGES Initial revision Add Remark on page 3 DATE 29 July 2008 2 October 2008