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? 20 12 4d systems www.4d systems .com .au page 1 of 18 4d lcd - 144 datasheet document date: 20 th may 201 2 document revision: 0 2
4d lcd - 144 datasheet ? 20 12 4d systems www.4d systems .com .au page 2 of 18 table of contents 1. specifications .............................................................................................................................................................. 3 1.1 general specifications ....................................................................................................................................... 3 1.2 absolute maximum ratings .............................................................................................................................. 3 1.3 electrical characteristics ................................................................................................................................... 3 1.4 backlight characteristics ................................................................................................................................... 3 2. dimensional drawing .................................................................................................................................................. 4 3. interface pin connections ........................................................................................................................................... 5 3.1 timing characteristics ....................................................................................................................................... 6 3.1.1 parallel interface characteristics ................................................................................................................... 6 3 .2 reset input timing ............................................................................................................................................ 7 4. electro - optical characteristics .................................................................................................................................... 8 4.1 electro - optical characteristics test method ..................................................................................................... 8 4.2 operating voltage: v op ...................................................................................................................................... 9 4.3 optical response time ...................................................................................................................................... 9 4.4 viewing angle: .............................................................................................................................................. 10 4.5 contrast ratio: cr ........................................................................................................................................... 10 5. inspection criteria .................................................................................................................................................... 11 5 .1 inspection conditions ...................................................................................................................................... 11 5.1.1 environmental conditions ........................................................................................................................... 11 5.1.2 the external visual inspection .................................................................................................................... 11 5.2 light method ................................................................................................................................................... 11 5.3 classification of defects ................................................................................................................................... 12 6. reliability .................................................................................................................................................................. 13 6.1 tests ................................................................................................................................................................ 13 7. precaution for using the lcd module ....................................................................................................................... 14 7.1 handing precautions ....................................................................................................................................... 14 7.2 storage precautions ........................................................................................................................................ 14 7.3 others .............................................................................................................................................................. 14 8. using the lcd module .............................................................................................................................................. 15 8.1 liquid crystal display module ......................................................................................................................... 15 8.2 installing the lcd module ............................................................................................................................... 15 8.3 electrostatic discharge contr ol ....................................................................................................................... 15 8.4 precaution for soldering to the lcm ............................................................................................................... 16 8.5 precautions for operation ............................................................................................................................... 16 8.6 storage ............................................................................................................................................................ 16 8.7 safety ............................................................................................................................................................... 16 8.8 return the lcm under warranty ..................................................................................................................... 17
4d lcd - 144 datasheet ? 20 12 4d systems www.4d systems .com .au page 3 of 18 1. s pecifications 1.1 general specifications lcd - 144 is a color active matrix lcd module incorporating amorphous silicon tft (thin film transistor). it i s composed of a color tft - lcd panel, driver ic, fpc and a backlight unit. the module display area contains 128x128 pixels and can display up to 65k colors. this product accords with rohs environmental criterion. item contents unit lcd type tft transmissive / viewing direction 12:00 o' clock module outline (w x h x d) 33.5x37.5x2.6max mm active area (wxh) 25. 5 x26 . 5 mm number of dots 128(rgb) x128 / driver ic st7735 r / colors 65k / backlight type led / interface type system parallel interface / input voltage 2.8 v 1.2 absolute maximum ratings parameter symbol min max unit supply vol tage for logic v cc1 ,v cc2 - 0.3 4.6 v input voltage v in - 0.3 vcc+ 0.3 v operating temperatur e t op - 20 70 storage temperature t st - 30 80 humidity rh -- 90%(max60c) rh 1.3 e lectrical characteristics parameter symbol min typ max u nit supply voltage for logic v cc - v ss 2.4 2.8 3. 3 v input current idd -- 10 -- ma input voltage ' h ' level v i h 0.7v cc -- v cc v input voltage ' l ' level v i l - vss -- 0.2 v cc v output voltage ' h ' level v o h 0.8 vcc -- vcc v output voltage ' l ' level v o l 0 0 0.2 vcc v 1.4 backlight characteristics item symbol min typ max unit condition forward voltage v f -- 2.8 3. 1 v -- luminance l v -- 2 50 -- cd/m2 i f = 20 ma number of led -- 1 piece -- conne ction mode p serial -- --
4d lcd - 144 datasheet ? 20 12 4d systems www.4d systems .com .au page 4 of 18 2. d imensional d rawing
4d lcd - 144 datasheet ? 20 12 4d systems www.4d systems .com .au page 5 of 18 3. i nterface p in c onnections pin no. symbol function 1 v d d p ower supply 2 - 4 v s s ground 5 /cs c hip select signal input(low active) 6 rs data and control register select input. 7 / rd r ead se lect signal 8 /wr w rite select signal input 9 / reset a reset pin. 10 d0 data bit0 11 nc 12 d1 data bit1 13 nc 14 d2 data bit 2 15 nc 16 d3 data bit3 17 nc 18 d4 data bit4 19 nc 20 d5 data bit5 21 nc 22 d6 data bit6 23 nc 24 d7 data bit7 25 nc 26 led - b ack light power supply : negative 27 led + b ack light power supply : positive
4d lcd - 144 datasheet ? 20 12 4d systems www.4d systems .com .au page 6 of 18 3.1 timing characteristics 3.1.1 parallel interface characteristics ( 8 - bits bus , 8080 - series mcu interface) parallel interfacing timing interfacing characteristics (8080 series mcu interfacing) signal symbol parameter min max unit description d/cx t ast address s etup time 10 ns - t hat address hold time (write/read) 10 ns csx t c hw chip s elect h pulse width 0 ns - t cs chip select setup time (write) 15 ns t rcs chip select setup time (read id) 45 ns t rcsfm chip select setup time (read fm) 350 ns t csf chip select wait time (write/read) 10 ns t csh chip select hold time 10 ns wrx t wc write cycle 100 ns t wrh control pulse h duration 30 ns t wrl control pulse l duration 30 ns rdx (id) t rc read c ycle (id) 160 ns when read id data t rdh control pulse h duration (id) 90 ns t rdl control pulse l duration (id) 45 ns rdx (fm) t rcfm read c ycle (fm) 450 ns when read from frame memory t rdhfm control pulse h duration (fm) 150 ns t rdlfm control pulse l duration (fm) 150 ns
4d lcd - 144 datasheet ? 20 12 4d systems www.4d systems .com .au page 7 of 18 3.2 reset input timing related pins symbol parameter min max uni t resx t resw reset pulse duration 10 - us t rest reset cancel - 5 ms 120 ms notes: ? the reset cancel includes the time required for loading id bytes, vcom setting and other settings from the eeprom (or similar device) to register. this loading is d one every time when there is hw reset cancel time (t rt ) within 5 ms after a siring edge of resx . ? spike due to an electrostatic discharge on resx line does not cause irregular system reset according to the table below, resx pulse action shorter than 5us reset rejected longer than 9us reset between 5us and 9us reset starts
4d lcd - 144 datasheet ? 20 12 4d systems www.4d systems .com .au page 8 of 18 4. e lectro - o ptical c haracteristics item symbol condition temp min typ max units note operating volt. vlcd = = 0 - 10 ( ---- ---- ---- v - 25 ( ---- 8.5 ---- 60 ( ---- ---- ---- response time rise time (tr) = = 0 - 10 ( ---- ---- ---- msec - decay time (td) ---- ---- ---- rise time (tr) 25 ( ---- ---- 240 decay tim e (td) ---- ---- 240 rise time (tr) 60 ( ---- ---- ---- decay time (td) ---- ---- ---- viewing angle range =0 25 ( ---- ---- 30 deg cr 2 00 =90 ---- ---- 30 =180 ---- ---- 30 =270 ---- -- -- 30 contrast ratio c r = = 0 25 ( 3 00 450 ---- --- 4.1 electro - optical characteristics test method
4d lcd - 144 datasheet ? 20 12 4d systems www.4d systems .com .au page 9 of 18 4.2 operating voltage: v op v op = (v 10,on +v 90,off )/2 4.3 optical response time
4d lcd - 144 datasheet ? 20 12 4d systems www.4d systems .com .au page 10 of 18 4.4 viewing angle: 4.5 contrast ratio: cr
4d lcd - 144 datasheet ? 20 12 4d systems www.4d systems .com .au page 11 of 18 5. i nspection c riteria 5.1 inspection conditions 5.1.1 environmental conditions the environmental conditions for inspection shall be as follows room temperature: 203c humidity: 6520%rh 5.1.2 the external visual inspection with a single 20 - watt fluorescent lamp as the light source, the inspection was in the distance of 30cm or more from the lcd to the inspector's eye. 5.2 light method
4d lcd - 144 datasheet ? 20 12 4d systems www.4d systems .com .au page 12 of 18 5.3 classification of defects major defect a major defect refers to a defect that may substantially degrade usability for product applications. minor defect a minor defect refers to a defect which is not considered to be able substantially degrade the product application or a defect that deviates from existing standards almost unrelated to the effective use of the product or its operation.
4d lcd - 144 datasheet ? 20 12 4d systems www.4d systems .com .au page 13 of 18 6. r eliability mtbf the lcd module shall be designed to meet a minimum mtbf value of 50000 hours with normal. (25c in the room without sunlight) 6.1 tests no. test item test condition criterion 1 high temperature storag e 80 2 96h restore 2h at 25 power off after testing, cosmetic and electrical defects should not happen 2 low temperature storage - 30 2 96h restore 2h at 25 power off 3 high temperature operation 70 2 96h restore 2h at 25 power on 4 l ow temperature operation - 20 2 96h restore 4h at 25 power on 5 high temperature & humidity operation 60 2 90%rh 96h power on 6 temperature cycle -- 30 30min 5min 30min after 10cycle, res tore 2h at 25 power off 7 v ibration test 10hz~150hz, 100m/s2, 120min 8 shock test half - sinewave,300m/s2,11ms 9 drop test(package state) 800mm, concrete floor,1corner, 3edges, 6 sides each time 1. after testing, cosmetic and electrical defects should not happen 2. t he p roduct should remain at initial place 3.product uncovered or package broken is not permitted.
4d lcd - 144 datasheet ? 20 12 4d systems www.4d systems .com .au page 14 of 18 7. p recaution for using the lcd m odule 7.1 h anding precautions ? the display panel is made of glass. do not subject it to a mechanical shock or impact by dropping it. ? 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 d isplay surface or the adjoining area ; it may cause the color tone to vary. ? the polarizer covering surface of the lcd module is soft and easily scratched. handle th e polarizer carefully. ? if the display surface becomes contaminated, breathe on the surface an d gently wipe it with a soft dry cloth. ? if it is heavily contaminated, moisten a 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 follow ing: - water - ketone - aromatic solvents ? extra care to minimize corrosion of the electrode. water droplets, moisture condensation or a current flow in a high - humidity environment accelerates corrosion of the electrode. ? install the lcd module by using the mounti ng 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. ? m aintain optimum work environment t o prevent destruction of the elements by static electricity . - be sure to ground the body when handling t he lcd module. - t ools 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 dis play surface. exercise care when peeling off this protective film since static electricity may be generated. 7.2 s torage precautions when storing the lcd module, avoid exposure to direct sunlight of fluorescent lamps. keep the module in bags (avoid high tempe rature/ high humidity and low temperatures below 0 ( ). whenever possible, the lcd module should be stored in the same conditions in which they were shipped from our company. 7.3 o thers liquid crystals solidify under low temperature (below the storage temperatu re 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 module have been operating for a long time showin g the same display pa tterns 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 recovered by suspending use for some tim e. it should be noted that this phenomenon does not adversely affect performance reliability. to minimize the performance degradation of the lcd module resulting from destruction caused by static electricity etc. exercise care to avoid holding the following sections when handling the modules. ? exposed area of the prin ted circuit board. ? terminal electrode sections.
4d lcd - 144 datasheet ? 20 12 4d systems www.4d systems .com .au page 15 of 18 8. u sing the lcd m odule 8.1 liquid crystal display module 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 s torage. polarization degradation, bubble generation or polarizer peel - off may occur with high temperature and high humidity. ? do not touch, push or rub the exposed polarizer with anything harder than a hb pencil lead (glass, tweezers, etc). ? n - hexane is reco mmended for cleaning the adhesives used to attach front/rear polarizer and reflectors made of organic substances, which will be damaged by chemicals such as acetone, toluene, toluene, ethanol and isopropyl alcohol. ? when the display surface becomes dusty, w ipe gently with absorbent cotton or other soft material like chamois soaked in petroleum ether. do not scrub hard to avoid damaging the display surface. ? wipe off saliva or water drops immediately, contact with water over a long period of time may cause def ormation or color fading. ? avoid contacting oil and fats. ? condensation on the surface and contact with terminals due to cold will damage, stain or polarizer . after products are tested at low temperature they must be warmed up in a container before coming is contacting with room temperature air. ? do not put or attach anything on the display area to avoid leaving marks on. ? do not touch the display with bare hands. this will stain the display area and degrade insulation between terminals (some cosmetics are dete rminate to the polarizer ). ? as glass is fragile, it tends to become or chipped during handling especially on the edges. please avoid dropping or jarring. 8.2 installing the lcd module attend to the following items when installing the lcm. ? cover the surface wit h a transparent protective plate to protect the polarizer and lc cell. ? 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. 8.3 electrostatic discharge control since this module uses a cmos lsi, the same careful attention should be paid for electrostatic discharge as for an ordinary cmos ic. ? make certain that you are grounded when handing lcm. ? before removing lcm from its packing case or incorporating it into a s et, be sure the module and your body have the same electric potential. ? when soldering the terminal of lcm, make certain the ac p ower source for the soldering iron does not leak. ? 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 c ommutator of the motor. ? as far as possible, make the electric potential of your work clothes and that of the workbenches to the ground potential. ? to reduce the generation of static electricity, be careful that the air in the work is not too dried. a relati ve humidity of 50% - 60% is recommended.
4d lcd - 144 datasheet ? 20 12 4d systems www.4d systems .com .au page 16 of 18 8.4 precaution for soldering to the lcm observe the following when soldering lead wire, connector cable and etc. to the lcm. ? soldering iron temperature: 280 10c. ? soldering time: 3 - 4 sec. ? solder: eutectic solder. ? if sol dering 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 t o prevent a ny damage due to flux spatters. ? 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 the re may be some variance depending on the temperature of the soldering iron. ? when removing the electroluminescent panel from the pc board, be sure the solder has completely melted, otherwise the soldered pad on the pc board could be damaged. 8.5 precautions fo r operation ? 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 will shorten its lifetime. ? response time is greatly delayed at temperature below th e 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 on. ? condensation on terminals can cause an electrochemical reaction disrupting the terminal circuit. therefore, it must be used under the relative condition of 40c, 50% rh. ? when turning the power on, input each signal after the positive/negative voltage becomes stable. 8.6 storage when storing lcds as spares for some years, the following precaution are necessary. ? store them in a sealed polyethylene bag. if properly scaled, there is no need for desiccant. ? store them in a dark place. do not expose to sunlight or fluorescent light, keep the temperature between 0c and 35c. ? 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: o - do not leave them for more than 168hrs at 60 c. o - should not be left for more than 48hrs at C 20 c. 8.7 safety ? it is recommended to crush damaged or unnecessary lcds into pieces and wash them off with solvents such as ace tone 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.
4d lcd - 144 datasheet ? 20 12 4d systems www.4d systems .com .au page 17 of 18 8.8 return the lcm under warranty no warranty can be granted if the precautions stat ed above have been disregarded. the typical examples of violations are: ? broken lcd glass. ? pcb eyelets damaged or modified. ? pcb conductors damaged. ? circuit modified in any way, including addition of components. ? pcb tampered with by grinding, engraving or p ainting varnish. ? soldering to or modifying the bezel in any manner. module repairs will be invoiced to the customer upon mutual agre ement. modules must be returned with sufficient description of the failures or defects. any connectors or cable inst alled by the customer must be removed completely without damaging the pcb eyelets conductors and terminals.
4d lcd - 144 datasheet ? 20 12 4d systems www.4d systems .com .au page 18 of 18 p roprietary i nformation the information contained in this document is the property of 4d systems pty. ltd. and may be the subject of patents pending or granted, and must not be copied or disclosed without prior written permission. 4d systems endeavors to ensure that the information in this document is correct and fairly stated but does not accept liabili ty for any error or omission. the development of 4d systems products and services is continuous and published information may not be up to date. it is important to check the current position with 4d systems. all trademarks belong to their respective owner s and are recognized and acknowledged. d isclaimer of w arranties & l imitation of l iability 4d labs makes no warranty, either express or implied with respect to any product, and specifically disclaims all other warranties, including, without limitation, war ranties for merchantability, non - infringement and fitness for any particular purpose. information contained in this publication regarding device applications and the like is provided only for your convenience and may be superseded by updates. it is your r esponsibility to ensure that your application meets with your specifications. in no event shall 4d labs be liable to the buyer or to any third party for any indirect, incidental, special, consequential, punitive or exemplary damages (including without lim itation lost profits, lost savings, or loss of business opportunity) arising out of or relating to any product or service provided or to be provided by 4d labs, or the use or inability to use the same, even if 4d labs has been advised of the possibility of such damages. 4d labs products are not fault tolerant nor designed, manufactured or intended for use or resale as on line control equipment in hazardous environments requiring fail C safe performance, such as in the operation of nuclear facilities, aircr aft navigation or communication systems, air traffic control, direct life support machines or weapons systems in which the failure of the product could lead directly to death, personal injury or severe physical or environmental damage (high risk activitie s). 4d labs and its suppliers specifically disclaim any expressed or implied warranty of fitness for high risk activities. use of 4d labs products and devices in 'high risk activities' and in any other application is entirely at the buyers risk, and the buyer agrees to defend, indemnify and hold harmless 4d labs from any and all damages, claims, suits, or expenses resulting from such use. no licenses are conveyed, implicitly or otherwise, under any 4d labs intellectual property rights. c ontact i nformation for technical support: support@4dsystems.com.au for sales support: sales@4dsystems.com.au website: www.4dsystems.com.au copyright 4d systems pty. ltd. 2000 - 201 2 .

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