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website: www.displaytech.com.hk lcd m odule p roduct specification product: DT018ATFT 1.8 '' tft display module ( 128 rgbx 160 dots) 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. 8 march 2011 .
displaytech ltd lcd module DT018ATFT version: 1.0 1 1. revision record version ch anges date 1.0 initial revision 8 march 2011
displaytech ltd lcd module DT018ATFT version: 1.0 2 table of content 1. revision record ................................ ................................ .......... 1 2. introduction ................................ ................................ .......................... 3 3. general s pecifications ................................ ................................ .......... 3 4. mechanical drawing ................................ ................................ ............. 4 5. interf ace description ................................ ................................ ............ 5 6. absolute maximum ratings ................................ ................................ 7 7. electrical characteristics ................................ ................................ ..... 7 8. display controller /power supply timing ................................ ......... 7 9. backlight specification ................................ ................................ ......... 8 10. optical characteristics ................................ ................................ ......... 8 11. safety precaution ................................ ................................ ................ 11
displaytech ltd lcd module DT018ATFT version: 1.0 3 2. introduction DT018ATFT is a display module that contains a tft display with a 160 * 128 rgb resolution. the driver used for this project is the ilitek ili9163c or compatible and can display 262 k colors. the driver is mounted on the glass and the interconnection via fpc including components to drive the display module. 3. general s pecifications item specification unit lcd mode transmissive -- - resolution 128 (rgb) line 160 line diagonal size 1.8 inch overall size 34.00 mm 46.70 m m active area 28.03 m m 35.04 m m optimum viewing direction 6 o clock --- driver ic ili9163c --- interface type mcu parallel / rgb (1) --- colours 262k --- operation temperature range ( DT018ATFT ) - 20~70 c storage temperature range ( DT018ATFT ) - 30~80 c remarks: (1) serial interface is available, but not recommendable, as the speed of it is very slow. (2) recommended mating connector: hirose fh19sc - 45s - 0.5sh , fh1 2s - 45s - 0.5sh ; or molex 0512964593 , 0512964594 ; or equivalent (3) color tune may be changed slightly by temperature and driving voltage. (4) rohs compliant. component life cycle 1) storage life : min. 1 year 2) operation life ( *1 ): min. 4 3 x 10 3 h (2 4 h r/d ay x 7day s / week x 52weeks/year x 5years) (not include backlight) 3) storage and operation life times are defined for a temperature of +25c notes: *1. operation life ends when one of the listed faults occurs: ? the on/off response - times reach 1.5 times of the ma x. value specified for a new display ? the contrast is reduced to 0.5 of the original contrast value ? loss of function ? the number of cosmetic defects exceeds the maximum defined
displaytech ltd lcd module DT018ATFT version: 1.0 4 4. mechanical drawing DT018ATFT
displaytech ltd lcd module DT018ATFT version: 1.0 5 5. interface description pin no symbol i/o descript ion 1 leda --- back light anode. 2 led k 1 --- backlight cathode k1 3 led k 2 --- backlight cathode k2 4 im0 i mcu parallel interface type selection 5 im1 6 im2 i mcu parallel interface bus and serial interface select - im2 = 1; parallel i nterface - im2 = ?? serial interface 7 rcm0 i rgb and mcu interface mode selection pin 8 rcm1 i 9 sda i when rcm1, rcm0=1x(rgb i/f), serial input/output signal in serial i/f mode. the data is input on the rising edge of the scl signal. the da ta is output on the falling edge of the scl signal. when rcm1, rcm0=0x(mcu i/f), this pin is not used, and fix at vddi or gnd level. if not used, please fix this pin at vddi or gnd level. 10 vcc --- power supply 2.8v 11 gnd / vss --- power ground 0v 1 2 rd i read enable in 8080 - parallel interface and read/ write operation enable pin in 6800 - parallel interface. in 8080 - parallel interface, if not used, please connect this pin to vddi. in 6800 - parallel interface, if not used, please connect this pin to vdd i or gnd. 13 rs i display data / command selection pin in parallel and scl in 3 - pin spi interface. rs=1: display data. rs=0: command data. if not used, please connect this pin to gnd. 1 4 ~ 31 db17~db0 i/o when rcm=0 (mcu i/f), d[17:0] are used to mc u parallel interface data bus, and d0 is also the serial input/ output signal in spi interface mode. in serial interface, d[17:1] are not used and should be connected to ground. 32 te o tearing effect output pin to synchronies mcu to frame writing, activa ted by s/w command. when this pin is not activated, this pin is low. if not used, please open this pin. 33 res i chip reset pin (low active). this signal low will reset the device and must be applied to properly initialize the chip. 34 cs i chip select input pin (low enable). this pin can be permanently fixed low in mcu interface mode only. 35 wr i write enable in parallel interface. wr: for 8080 mcu r/wx: for 6800 mcu rs: for 4 - wire spi if not used, please connect this pin to vddi or gnd.
displaytech ltd lcd module DT018ATFT version: 1.0 6 pin no symbol i/o description 36 pclk i pixel clock signal in rgb i/f mode. - if it? not used, please fix this pin at gnd level. 37 de i data enable signal in rgb i/f mode. - if it? not used, please fix this pin at gnd level. 38 hs i horizontal sync. s igna l in rgb i/f mode. - if it? not used, please fix this pin at gnd level. 39 vs i vertical sync. signal in rgb i/f mode. - if it? not used, please fix this pin at gnd level. 40 gnd / vss --- power ground 0v 41 vddio --- logic power supply 2.8v 4 2 nc (x+) - -- no connection (x+ of touch screen) 43 nc (y - ) - -- no connection (y - of touch screen) 44 nc (x - ) - -- no connection (x - of touch screen) 45 nc ( y +) --- no connection (y+ of touch screen)
displaytech ltd lcd module DT018ATFT version: 1.0 7 6. absolute maximum ratings (ta=25 ? ) item symbol min. max . unit power s upply voltage v cc - 0.3 + 4. 6 v logic signal input/output voltage v cc - 0.3 + 4.6 v operating temperature t op - 20 + 7 0 ? storage temperature t st - 3 0 + 8 0 ? note: when temperature is below 0 ? , the response time of liquid crystal (lc) will be slower and the color o f panel will be darker. if module driving condition exceeds the absolute maximum ratings , permanent damaged may be resulted. if module is driven within the absolute maximum ratings but exceeded the dc characteristics, mal - function may be resulted. vdd /vcc > vs s 7. electrical characteristics dc characteristics (vss=0v, ta=25 ? ) item symbol condition min. typ. max. unit power supply v cc / v dd 2.5 2.8 3.3 v input voltage ? v ih --- 0. 7 vc c --- v cc v input voltage l v il --- vss - -- 0.3 v cc v output voltage h v oh iol= - 1.0ma 0.8 v cc --- v cc v output voltage l v ol iol=1.0ma vss --- 0.2 v cc v 8. d isplay controller /power supply timing see display controller specification: ilitek ili9163c
displaytech ltd lcd module DT018ATFT version: 1.0 8 9. backlight specification (vcc=3.0v, vss=0v, ta=25 ? ) item symbol condition min typ max unit note supply voltage vf if=20ma x2 2.9 --- 3.5 v 1 forward current if --- 40 --- ma 2 u niformity bp if=30ma 80 --- --- % color coordination x 0.260 --- 0.305 --- y 0.265 --- 0.305 --- le d circuit diagram: constant current if=20x2ma; vf=3.2 0.3v(typ) note: 1) the led s driver mode needs to be constant current mode. 2) permanent damage to the device may occur if maximum values are exceede d. functional operation should be restricted to the cond itions described under normal operating conditions. 10. optical characteristics (vcc=2.8v, vss=0v, ta=25 ? ) item symbol condition min typ max unit note brightness bp =0 =0 250 280 --- c d/m 2 1 u niformity bp 80 --- --- % 1, 2 viewing angle 1 ( =90 or 270) cr 10 - 65 ~ 65 deg 3 2 ( =0 or 180) - 50 ~ 40 contrast ratio cr =0 =0 --- 350 --- --- 4 response time tr --- 30 --- m s 5 tf cie (x,y) chroma ti city white x =0 =0 0.2451 0.2951 0.3451 --- 1, 6 y 0.2664 0.3164 0.3664 red x 0.5333 0.5833 0.6333 y 0.2804 0.3304 0.3804 green x 0.2913 0.3413 0.3913 y 0.5314 0.5814 0.6314 blue x 0.1036 0.1536 0.2036 y 0.0465 0.0965 0.1465 ntsc ratio s --- 51 --- %
displaytech ltd lcd module DT018ATFT version: 1.0 9 note 1: the data are measured after led s are turned on for 5 minutes. lcm displays full white. the brightness is the average value of 9 measured spots. measurement equipment pr - 705 ( 8mm) measuring condition: - measuring surroundings: dark room. - measuring temperature: ta=25c. - adjust operating voltage to get optimum contrast at the center of the display. measured value at the center point of lcd panel after more than 5 m inutes while backlight turning on. note 2: the luminance uniformity is calculated by using following formula. bp = bp (min.) / bp (max.) 100 (%) bp (max.) = maximum brightness in 9 measured spots bp (min.) = minimum brightne ss in 9 measured spots. measurement equipment pr - 705 ( 8mm) note 3: the definition of viewing angle: refer to the graph below marked by and w/6 w/3 w/3 l/6 l/3 l/3
displaytech ltd lcd module DT018ATFT version: 1.0 10 note 4: the definition of contrast ratio (test lcm using pr - 705): contrast ratio (cr) = luminance when lcd is at white state luminance when lcd is at black?state (contrast ratio is measured in optimum common electrode voltage) note 5: definition of response time. (test lcd using dms501): the output signals of photo detector are measured when the input signals are changed from black to ?hite (falling time) and from white to black (rising time), respectively. the response time is defined as the time interval between the 10% and 90% of amplitudes. refer to figure as below. the definition of response time note 6: definition of color of c ie coordinate and ntsc ratio. color gamut: s = area of rgb triangle x 100% area of ntsc triangle
displaytech ltd lcd module DT018ATFT version: 1.0 11 11. s afety p recaution handling precautions: this device is susceptible to electro - static discharge (esd) damage. observe anti - static precautions. power supply precautions: 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 vcc an d gnd, 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 vcc power of the module should also supply the power to all devices that may acces s the display. don t allow the data bus to be driven when the logic supply to the module is turned off. operating precautions: do not plug or unplug the module when the system is powered up. minimize the cable length between the module and host mpu. oper ate the module within the limits of the modules temperature specifications. mechanical/environmental precautions: improper soldering is the major cause of module difficulty. use of flux cleaner is not recommended as they may seep under the elastomeric con nection 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 temperatur e 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
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