website: www.displaytech.com.hk product specifications n general specification n absolute maximum ratings n electrical characteristics n electro - optical characteristics n block diagram n mechanical d rawing n backlight drawing n backlight specification n quality guarantee n precautions for using lcd modules n using lcd modules n revision record contents in this document are subject to change without notice. no part of this document may be repro duced or transmitted in any form or by any means, electronic or mechanical, for any purpose, without the express written permission of displaytech ltd. 15 april 2008.
displayte ch ltd lcd module 32128a - rgb series version : 1. 1 p 2 of 18 n general specification item contents display format 32 x 128 dots dot size 0.242 x 0.245 view area 36.1 mm x 9.95mm module size 41.3 mm x 19.7mm x 8.1 mm lcd type fstn polarizer mode trans flective view angle 6 o clock backlight led backlight driver type external power backlight color rgb controller & lcd driver st7565v driving method 1/33 duty, 1/6 bias n absolute maximun ratings (ta=25 c vss=0v) item symbol min. typ. max. unit power supply for logic vdd - 0.3 --- 3.6 v power supply for lcd v0 - v ss 4.0 --- 13.0 v input voltage v in - 0.3 --- vdd+0.3 v supply voltage for led backlight v led --- 3. 2 --- v normal operating temperature top 0 --- 5 0 c normal storage temperature tst - 1 0 --- 6 0 c wide operating temperature top - 20 --- 70 c wide storage temperature tst - 30 --- 80 c n electrical characteristics (ta=25 c, vdd= 3.0 v 5% ) item symbol condition min. typ. max. unit power supply for lcm vdd --- 2.85 3.0 3.15 volt input voltage v il l level vss --- 0. 2 vdd volt v ih h level 0. 8 vdd --- vdd volt lcd driver driving voltage vdd2 --- --- --- --- volt 25 c --- 6 .9 --- --- --- --- --- supply current for lcm idd vdd= 3 . 0 v --- 0.35 --- ma ie * --- --- --- --- iled vled=3. 2 v --- 60 ---
displayte ch ltd lcd module 32128a - rgb series version : 1. 1 p 3 of 18 n electro - optical characteristics no item symbol measuring condition std.value unit remark c min typ max 1 reco mmended operating voltage vlcd ? = 0 = 0 25 6.6 6.9 7.2 v note1 note2 2 operating voltage vth ? = 0 = 0 0 --- --- --- 25 --- 1.8 8 9 --- 50 --- --- --- vsat ? = 0 = 0 0 --- --- --- 25 --- 2. 116 --- 50 --- --- --- 3 re sponse time tr ? = 0 = 10 0 --- --- --- ms note4 25 --- 5 8 90 50 --- --- --- tf ? = 0 = 10 0 --- --- --- 25 --- 11 8 210 50 --- --- --- 4 viewing angle (cr 2) ? =0 25 --- 40 --- deg note1 ? =180 25 --- 35 --- ? =90 25 --- 30 --- ? =270 25 --- 30 --- 5 current consumption ilcd hz=64 25 --- 1 7 --- ua note3 note 1 : definition of viewing angle and direction note 2 : thershold voltage and saturation voltage vth: the voltage vop which the transmissi on 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) detector 3h =90 6h =0 z ? =0 9h =270 12h =180 ?
displayte ch ltd lcd module 32128a - rgb series version : 1. 1 p 4 of 18 note 3 : current consumption (i lcd ) note 4 : response time (tr, tf) note 5 : contrast ratio (cr) 5.1 positive type: contrast ratio = brightness at vop(non - selected) b rightness at vop(selected) 5.2 negative type: contrast ratio = brightness at vop(selected) brightness at vop(non - selected) note 6 : capacitance (c) conditions: voltage applied to all segments. conditions: 1.driving waveform: stat ic waveform. 2.voltage applied to all segments
displayte ch ltd lcd module 32128a - rgb series version : 1. 1 p 5 of 18 n block diagram
displayte ch ltd lcd module 32128a - rgb series version : 1. 1 p 6 of 18 n mechancial drawing
displayte ch ltd lcd module 32128a - rgb series version : 1. 1 p 7 of 18 n backlig ht drawing
displayte ch ltd lcd module 32128a - rgb series version : 1. 1 p 8 of 18 n backlight specification mechanical specifications item nominal dimensions unit outline size (lxwxh) 41.3 x 19.7 x 8. 1 0 mm viewing area (lxw) 37.10 x 10.95 mm contact pin pitch/length nil mm no.of led smt 3 --- electrical/o ptical characteristics (t a =25 c, i f = 60 ma typ.) mode parameter unit color red p ure green blue --- chromaticity coordinate x=0.7032 y=0.2965 x=0.1899 y=0.7276 x=0.1417 y=0.0612 --- forward voltage (vf) 3.2 typ 3.2 typ 3.2 typ v forward current (if) 60 60 60 ma average luminous intensity (iv) 62 336 134 cd/ m 2 absolute maximum rating item red p ure green blue unit forward current 9 0ma 9 0ma 9 0ma if reverse voltage 5 v 5 v 5 v vr power dissipation 288 mw 288 mw 288 mw pd operating temperature - 20 c to 70 c top storage temperature - 30 c to 80 c tstg testing point circuit diagram remark: 1. average luminous intensity is the average value of the six in dicated points as shown . 2. measure ment instrument: bm - 7, aperture: ? 10mm .
displayte ch ltd lcd module 32128a - rgb series version : 1. 1 p 9 of 18 n quality guarantee pur po se: it is to define the inspection standard of lcd modules product standar d 1) inspection and test function test appearance inspection packing specifiction 2) inspection condit ion 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 : mil - std - 105d sampling plan : single major defect : 0.65% (major) m inor defect : 2.5% (minor) general level : ii/normal display area definition: lamp lcm operator viewing boundary view area
displayte ch ltd lcd module 32128a - rgb series version : 1. 1 p 10 of 18 inspection standard 1 ) function al test standard i tem i n spection standard descri p tion s tandard defect type 1 lcd has no display reject maj 2 lcm display do not ch ange reject maj 3 display wrong pattern r eject maj 4 display segment open r eject maj 5 display dim segment r eject maj 6 wrong lcd view ing direction r eject maj 7 dim display see sample maj 8 lcd color variation see sample maj 9 patte rn parallelism acceptable range l |