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product information product information 1/32 page LTM190ET01 model samsung tft -l cd model : LTM190ET01 samsung tft samsung tft - - lc d lc d model model : : LTM190ET01 LTM190ET01 issued date : 10 / feb / 2009 an y modification o f specification is not allo wed without sec's permission. application engineering part 1(hd), lcd business samsung electronics co . , ltd. note : this is product in forma t ion is subject to change af te r 3 mon t hs o f issuing date . www.datasheet.co.kr datasheet pdf - http://www..net/
product information product information 2/32 page LTM190ET01 model contents general description ----------- --------------- --------------- --------------- --------------- ---------- (3) 1. absolute maximum rati ngs --------------- --------------- --------------- --------------- ------- (4) 2. optical characteristi cs ---------------------- --------------- --------------- --------------- ------- (6) 3. electrical characterist ics ------------------ --------------- --------------- --------------- ---------(11) 3.1 tft lcd module 3.2 back light unit 4. block diagram ------------ ------------------ --------------- --------------- --------------- -------- (16) 4.1 tft lcd module 4.2 back light unit 5. input terminal pin assignment ---------- --------------- --------------- --------------- ------- (17) 5.1 input signal & power 5.2 lvds interface 5.3 back light unit 5.4 input signals, basic display colo rs and gray scale of each color 6. interface timing ---------- ------------------ --------------- --------------- --------------- -------- (24) 6.1 timing parameters (de only mode) 6.2 timing diagrams of interface signal (de only mode) 6.3 power on/off sequence 6.4 vdd power dip condition 7. outline dimension ---------- --------------- --------------- --------------- --------------- --------- (28) 8. general precaution ------- ------------------ --------------- --------------- --------------- ------ (30) 10.1 handling 10.2 storage 10.3 operation 10.4 others www.datasheet.co.kr datasheet pdf - http://www..net/
product information product information 3/32 page LTM190ET01 model LTM190ET01 is a color active matrix liquid crystal display (lcd) that uses amorphous silicon tft (thin film transistor) as swit ching components. this model is composed of a tft lcd panel, a driver circui t and a back light un it. the resolution of a 19.0? is 1280 x 1024 and this model can display up to 16.7 millions colors. ? workstation & desktop monitors ? display terminals for av application products ? monitors for industrial machine * if the module is used to other applications besides the above, please contact sec in advance. features general description description applications general information mm 0.294(h) x 0.294(w) pixel pitch mm 376.32(h) x 301.056(v) active display area note haze 25%, hard coating(3h) surface treatment cd/ ] 250 (typ.) luminance of white normally white display mode rgb vertical stripe pixel arrangement pixel 1280 x 1024 number of pixels colors 16.7m (6 bit hi-frc) display colors unit specification items ? rohs compliance (pb-free) ? high contrast ratio, high apert ure ratio, fast response time ? tn(twisted nematic) mode ? 2 ccfls (cold cathode fluorescent tube) ? de(data enable) only mode ? lvds (low voltage differential si gnaling) interface (2pixel/clock) ? compact size design ? tco?03 compliance www.datasheet.co.kr datasheet pdf - http://www..net/
product information product information 4/32 page LTM190ET01 model note (1) mechanical tolerance is ? 0.5mm unless there is a special comment. mechanical information 2,200 17.0 324.5 396.5 max. lcd module only g - - weight mm - - depth (d) mm 324.0 323.5 vertical (v) w/o inverter ass?y mm 396.0 395.5 horizontal (h) module size note unit typ. min. item (1) v 6.5 gnd-0.5 v dd power supply voltage v 5 - v sig data signal (4) g 1.5 - v nop vibration ( non - operating ) (3) g 50 - s nop shock ( non - operating ) (2) ? 50 0 t opr center of glass surface temperature (operation) (2) ? 60 -25 t stg storage temperature note unit max. min. symbol item 1. absolute maximum ratings if the condition exceeds maximum ratings, it can cause malfunction or unrecoverable damage to the device. note (1) ta= 25 ? 2 ? c www.datasheet.co.kr datasheet pdf - http://www..net/
product information product information 5/32 page LTM190ET01 model (2) temperature and relative humidity range are shown in the figure below. a. 90 % rh max. (ta ? 39 ? c) b. maximum wet-bulb temperature at 39 ? c or less. (ta ? 39 ? c) c. no condensation (3) 11ms, sine wave, one time for ? x, ? y, ? z axis (4) 10-300 hz, sweep rate 10min, 30min for x,y,z axis (39,90) (39,90) (60,27.7) (60,27.7) (50,50.4) (50,50.4) ( ( - - 25,5) 25,5) fig. temperature and relative humidity range www.datasheet.co.kr datasheet pdf - http://www..net/
product information product information 6/32 page LTM190ET01 model 2. optical characteristics * c.g.l : color grayscale linearity (9) 0.02 - - ? u'v' white c.g.l* (8) sr-3 degrees - 80 70 cr ? 10 ? l hor. viewing angle - 80 70 ? u ver. - 80 70 ? d - 80 70 ? r (4) sr-3 % 25 - - b uni brightness uniformity (9 points) k - 6,500 - - color temperature % - 72 - - color gamut sr-3 (7),(8) (6) sr-3 cd/m2 - 250 200 y l luminance of white (center of screen) (5) rd-80s 10 5 - tr+tf on/off response time msec normal ? l,r =0 ? u,d =0 viewing angle - tbd - wv' - tbd - wu' white - tbd - bv' - tbd - bu' blue - tbd - gv' - tbd - gu' green - tbd - rv' - tbd - ru' red color chromaticity (cie 1976) - tbd - wy - tbd - wx white - tbd - by - tbd - bx blue - tbd - gy - tbd - gx green - tbd - ry - tbd - rx red color chromaticity (cie 1931) (3) sr-3 - 1,000 600 c/r contrast ratio (center of screen) note unit max. typ. min. condition symbol item the optical characteristics should be me asured in a dark room or equivalent. measuring equipment : topcon rd-80s,spectroradiometer sr-3 (ta = 25 ? 2 ? c, vdd=5v, fv= 60hz, fdclk=54mhz, il = 7.5marms) www.datasheet.co.kr datasheet pdf - http://www..net/
product information product information 7/32 page LTM190ET01 model note (1) test equipment setup the measurement should be executed in a stable, windless and dark room between 30min after lighting the back light at the given temperature for stabilization of the back light. this should be measured in the center of screen. single lamp current : 7.5ma environment condition : ta = 25 ? 2 ? c 1 ? sr-3 field photo detector photo detector lcd panel tft - lcd module the center of the screen sr-3 : 50 y rd-80s : 50 y field www.datasheet.co.kr datasheet pdf - http://www..net/
product information product information 8/32 page LTM190ET01 model note (2) definition of test point note (3) definition of contrast ratio (c/r) : ratio of gray max (gmax) & gray min (gmin) at the center point ? of the panel note (4) definition of 9 points brightness uniformity note (5) definition of response time : sum of tr, tf buni bb b = ? 100 (max min) max bmax : maximum brightness bmin : minimum brightness cr g g = max min gmax : luminance with all pixels white gmin : luminance with all pixels black 100% 90% 10% 0% optical instruments response display data white(tft off) black(tft on) white(tft off) 6 8 7 9 3 2 1 4 5 128 640 1152 102 512 922 active area : test point www.datasheet.co.kr datasheet pdf - http://www..net/
product information product information 9/32 page LTM190ET01 model note (6) definition of luminance of white : luminance of white at center point ? note (7) definition of color chromaticity (cie 1931, cie1976) color coordinate of red, green, blue & white at center point ? note (8) definition of viewing angle : viewing angle range (cr ? 10, 5) www.datasheet.co.kr datasheet pdf - http://www..net/
product information product information 10/32 page LTM190ET01 model note (9) color grayscale linearity a. test image : 100% full white pattern with a test pattern as below b. test pattern : squares, 40mm by 40mm in size, filled with 255, 225, 195, 165, 135 and 105 grays steps should be arranged at the center of the screen. c. test method -1 st gray step : move a square of 255 gray level should be moved into the center of the screen and measure luminance and u? and v? coordinates. - next gray step : move a 225 gray square into the center and measure both luminance and coordinates, too. d. test evaluation where a, b : 2 gray levels found to have the largest color differences between them i.e. get the largest u? and v? of each 6 pair of u? and v? and calculate the u?v?. ? u' v' = (u' - u' ) + (v' - v' ) ab 2 ab 2 www.datasheet.co.kr datasheet pdf - http://www..net/
product information product information 11/32 page LTM190ET01 model 3.1 tft lcd module the connector for display data & t iming signal shoul d be connected. ta = 25 ? c note (1) the ripple voltage shou ld be controlled under 10% of v dd . 3. electrical characteristics common mode voltage input voltage range (single-ended) differential input voltage lvds skew differential input voltage for lvds receiver threshold (4) v 2.4 - 0 v in (4) v 2.4- |v id |/2 1.2 0+ |v id |/2 v cm (4) mv 600 - 200 |v id | (3) ps 300 - -300 t skew (7) a 3.0 - - i rush rush current mhz 68.4 54 44.1 f dclk main frequency khz 81 64 52.2 f h hsync frequency hz 76 60 49 f v vsync frequency ma tbd tbd - (c) dot ma - tbd - (b) white (5),(6) ma - tbd - i dd (a) black current of power supply mv - - -100 low (2) mv +100 - - high lvds input characteri stics (1) v 5.5 5.0 4.5 v dd voltage of power supply note unit max. typ. min. symbol item www.datasheet.co.kr datasheet pdf - http://www..net/
product information product information 12/32 page LTM190ET01 model (2) differential receiver voltage definitions and propagation delay and transition time test circuit a. all input pulses have frequency = 10mhz, t r or t f =1ns b. c l includes all probe and fixture capacitance note a. note b. (4) definition of v id and v cm using single-end signals (3) lvds receiver dc parameters are measured under static and steady conditions which may not be reflective of its performance in the end application. where tskew : skew between lvds clock & lvds data, t : 1 period time of lvds clock cf) (-/+) of 300psec means lvds data goes before or after lvds clock. differential lvds data rx +/- t skew t v diff = 0v v diff = 0v differential lvds clk www.datasheet.co.kr datasheet pdf - http://www..net/
product information product information 13/32 page LTM190ET01 model (5) fv=60hz, fdclk = 54mhz, vdd = 5.0v, dc current. (6) power dissipation check pattern (lcd module only) rush current i rush can be measured when t rush . is 470 k . t rush =470 k 100% gnd 90% 10% v dd (7) measurement conditions. a) black pattern b) white pattern c) dot pattern www.datasheet.co.kr datasheet pdf - http://www..net/
product information product information 14/32 page LTM190ET01 model the back light unit is an edge - light ing type with 2 ccfl s ( cold cathode fluorescent lamp ) the charac teristics of two lamps are sh own in the following tables. ta=25 ? 2 ? c 25 ? : 1,450 (5) vrms 0 ? : 1,650 - - vs startup voltage tbd tbd tbd wdis distortion rate (4) % tbd - - wasy asymmetry rate inverter waveform (3) hour - - 50,000 hr operating life time (2) khz 60 - 40 f l lamp frequency vrms - 650 - v l lamp voltage (1) marms 8.0 7.5 2.0 i l lamp current note unit max. typ. min. symbol item note (1) specified values are for a single lamp. lamp current is measured with current meter for high frequency as shown below. refer to the following block diagram of the back light unit for more information. fig. measurement point of lamp current 3.2 back light unit hot cold i 1 i2 inverter hot cold a a lcd module www.datasheet.co.kr datasheet pdf - http://www..net/
product information product information 15/32 page LTM190ET01 model (2) lamp frequency which ma y produce interference with horizontal synchronous frequency may cause line flow on the display. therefor e lamp frequency should be detached from the ho rizontal synchronous frequency and its harmoni cs as far as possible in order to avoid interference. (3) life time (hr) is defined as the time when brightness of a lamp unit itself becomes 50% or less than its original va lue at the condition of ta = 25 ? 2 ? c and i l = 8marms (4) designing a system inverter intended to have better display performance, power efficiency and lamp reliability. they would help increase the lamp lif etime and reduce leakage current. a. the measurement sh ould be done at typical lamp current. b. the asymmetry rate of the invert er waveform should be less than 10%. c. the distortion rate of the waveform should be 2 2 with ? 10% tolerance. - inverter output waveform had better be more similar to ideal sine wave. || ii i rms p-p u 100 ? asymmetry rate ? distortion rate (5) if an inverter has shutdown function, it should keep its output for over 1 second even if the lamp connector is open. oth erwise the lamps may not be turned on. fig. wave form of the inverter || i i rms p || i i rms -p or i p i -p www.datasheet.co.kr datasheet pdf - http://www..net/
product information product information 16/32 page LTM190ET01 model 4. block diagram 4.2 back light unit 4.1 tft lcd module power circuit column driver circuit tft-lcd (1280 x rgb x 1024 pixels) s1 s1280 timing controller source driver ics lvds (rx) lvds(tx) rsds(tx) control signal rsds cn1 (30pin) lvds pair #1 lvds pair #2 +5.0v v dd control signal lamp(ccel) lamp(ccel) 1 2 lamp(ccel) lamp(ccel) 1 2 hot cold hot cold www.datasheet.co.kr datasheet pdf - http://www..net/
product information product information 17/32 page LTM190ET01 model 5.1. input signal & power ( c onnector : uju is100-l30o-c23s ) * if the system already uses the 25, 26, 27 pins, it should keep under gnd level the voltage applied to those pins should not exceed -200mv. 5. input terminal pin assignment negative transmission data of pixel 1 (odd data) positive transmission data of pixel 0 (odd data) v dd 30 v dd 29 power supply : +5v v dd 28 * wpn_d (for lcd internal use only. do not connection) nc 27 * scl_d ( 'ps-$%joufsobmvtfpomz%p/pu$poofdujpo
nc 26 *sda_d ( 'ps-$%joufsobmvtfpomz%p/pu$poofdujpo
nc 25 power ground gnd 24 positive transmission data of pixel 3 (even data) rxe3+ 23 negative transmission data of pixel 3 (even data) rxe3- 22 positive sampling clock (even data) rxec+ 21 negative sampling clock (even data) rxec- 20 positive transmission data of pixel 2 (even data) rxe2+ 19 negative transmission data of pixel 2 (even data) rxe2- 18 power ground gnd 17 positive transmission data of pixel 1 (even data) rxe1+ 16 negative transmission data of pixel 1 (even data) rxe1- 15 power ground gnd 14 positive transmission data of pixel 0 (even data) rxe0+ 13 negative transmission data of pixel 0 (even data) rxe0- 12 positive transmission data of pixel 3 (odd data) rxo3+ 11 negative transmission data of pixel 3 (odd data) rxo3- 10 positive sampling clock (odd data) rxoc+ 9 negative sampling clock (odd data) rxoc- 8 power ground gnd 7 positive transmission data of pixel 2 (odd data) rxo2+ 6 negative transmission data of pixel 2 (odd data) rxo2- 5 positive transmission data of pixel 1 (odd data) rxo1+ 4 rxo1- 3 rxo0+ 2 negative transmission data of pixel 0 (odd data) rxo0- 1 function symbol pin no www.datasheet.co.kr datasheet pdf - http://www..net/
product information product information 18/32 page LTM190ET01 model note) pin number starts from left side a. all gnd pins should be connected together and also be connected to the lcd?s metal chassis. b. all power input pins should be connected together. c. all nc pins should be separated from other signal or power. pin no. 1 pin no. 30 pcb ? #30 #1 ? fig. connector diagram #30 #1 www.datasheet.co.kr datasheet pdf - http://www..net/
product information product information 19/32 page LTM190ET01 model 5.2 lvds interface 5.2.1 odd pixel data (1st pixel data) rxo3- rxo3+ no. 10 no. 11 txout3- txout3+ red odd pixel data ro6 txin27 50 blue odd pixel data bo5 txin22 24 blue odd pixel data bo4 txin21 23 blue odd pixel data bo3 txin20 22 rxo2- rxo2+ no. 5 no. 6 txout2- txout2+ blue odd pixel data bo2 txin19 20 rxo1- rxo1+ no. 3 no. 4 txout1- txout1+ blue odd pixel data bo1 txin18 19 blue odd pixel data (msb) bo7 txin17 18 rxo3- rxo3+ no. 10 no. 11 txout3- txout3+ blue odd pixel data bo6 txin16 16 blue odd pixel data (lsb) bo0 txin15 15 green odd pixel data go5 txin14 14 green odd pixel data go4 txin13 12 rxo1- rxo1+ no. 3 no. 4 txout1- txout1+ green odd pixel data go3 txin12 11 green odd pixel data (msb) go7 txin11 10 rxo3- rxo3+ no. 10 no. 11 txout3- txout3+ green odd pixel data go6 txin10 8 green odd pixel data go2 txin9 7 rxo1- rxo1+ no. 3 no. 4 txout1- txout1+ green odd pixel data go1 txin8 6 green odd pixel data (lsb) go0 txin7 4 rxo0- rxo0+ no. 1 no. 2 txout0- txout0+ red odd pixel data ro5 txin6 3 rxo3- rxo3+ no. 10 no. 11 txout3- txout3+ red odd pixel data (msb) ro7 txin5 2 red odd pixel data ro4 txin4 56 red odd pixel data ro3 txin3 55 red odd pixel data ro2 txin2 54 red odd pixel data ro1 txin1 52 rxo0- rxo0+ no. 1 no. 2 txout0- txout0+ red odd pixel data (lsb) ro0 txin0 51 symbol terminal function symbol symbol n o to ltm190ex interface ( cn101 ) output signal device input signal device input pin 1st lvds transmitter ( ds90c383, ds90c385 ) signal interface www.datasheet.co.kr datasheet pdf - http://www..net/
product information product information 20/32 page LTM190ET01 model 5.2.2 even pixel da ta (2nd pixel data) rxe3- rxe3+ no. 22 no. 23 txout3- txout3+ red even pixel data re6 txin27 50 blue even pixel data be5 txin22 24 blue even pixel data be4 txin21 23 blue even pixel data be3 txin20 22 rxe2- rxe2+ no. 18 no. 19 txout2- txout2+ blue even pixel data be2 txin19 20 rxe1- rxe1+ no. 15 no. 16 txout1- txout1+ blue even pixel data be1 txin18 19 blue even pixel data (msb) be7 txin17 18 rxe3- rxe3+ no. 22 no. 23 txout3- txout3+ blue even pixel data be6 txin16 16 blue even pixel data (lsb) be0 txin15 15 green even pixel data ge5 txin14 14 green even pixel data ge4 txin13 12 rxe1- rxe1+ no. 15 no. 16 txout1- txout1+ green even pixel data ge3 txin12 11 green even pixel data (msb) ge7 txin11 10 rxe3- rxe3+ no. 22 no. 23 txout3- txout3+ green even pixel data ge6 txin10 8 green even pixel data ge2 txin9 7 rxe1- rxe1+ no. 15 no. 16 txout1- txout1+ green even pixel data ge1 txin8 6 green even pixel data (lsb) ge0 txin7 4 rxe0- rxe0+ no. 12 no. 13 txout0- txout0+ red even pixel data re5 txin6 3 rxe3- rxe3+ no. 22 no. 23 txout3- txout3+ red even pixel data (msb) re7 txin5 2 red even pixel data re4 txin4 56 red even pixel data re3 txin3 55 red even pixel data re2 txin2 54 red even pixel data re1 txin1 52 rxe0- rxe0+ no. 12 no. 13 txout0- txout0+ red even pixel data (lsb) re0 txin0 51 symbol terminal function symbol symbol no to ltm190ex interface ( cn101 ) output signal device input signal device input pin 2nd lvds transmitter ( ds90c383, ds90c385 ) signal interface www.datasheet.co.kr datasheet pdf - http://www..net/
product information product information 21/32 page LTM190ET01 model 5.2.3 timing diagrams of lvds for transmitting lvds receiver : integrated t-con www.datasheet.co.kr datasheet pdf - http://www..net/
product information product information 22/32 page LTM190ET01 model 5.3 back light unit yeonho 35001hs-02l or equivalent connect or part no. ground white cold ? 1 2 high voltage red hot ? 1 1 lower ground white cold ? 1 2 high voltage red hot ? 1 1 upper function color input pin no. www.datasheet.co.kr datasheet pdf - http://www..net/
product information product information 23/32 page LTM190ET01 model 5.4 input signals, basic display colo rs and gray scale of each color b255 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 blue b254 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 b253 1 1 1 1 1 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 : : : : : : : : : : : : : : : : : : b3~ b252 : : : : : : : : : : : : : : : : : : b2 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 b1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 dark ? - light b0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 black gray scale of blue g255 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 green g254 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 g253 0 0 0 0 0 0 0 0 1 1 1 1 1 1 0 1 0 0 0 0 0 0 0 0 : : : : : : : : : : : : : : : : : : g3~ g252 : : : : : : : : : : : : : : : : : : g2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 g1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 dark ? - light g0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 black gray scale of gree n r255 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 red r254 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 0 r253 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 0 1 : : : : : : : : : : : : : : : : : : r3~ r252 : : : : : : : : : : : : : : : : : : r2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 r1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 dark ? - light r0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 black gray scale of red - 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 white - 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 yellow - 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 magent a - 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 red - 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 cyan - 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 green - 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 blue - 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 black basic colo r b7 b6 b5 b4 b3 b2 b1 b0 g 7 g6 g 5 g 4 g3 g 2 g 1 g0 r7 r6 r5 r4 r3 r2 r1 r0 blue green red gray scale level data signal display (8bit) colo r note (1) definition of gray : rn : red gray, gn : green gray, bn : blue gray (n = gray level) input signal : 0 = low level voltage, 1 = high level voltage www.datasheet.co.kr datasheet pdf - http://www..net/
product information product information 24/32 page LTM190ET01 model 6.1 timing parameters ( de only mode ) note (1) this product is de only mode . the input of hsync & vsync signal does not have an effect on normal operation. (2) test point : ttl control signal a nd clk at lvds tx input terminal in system (3) internal vcc = 3.3v 6. interface timing 2pixel/clock clocks 1130 844 676 t h horizontal total 2pixel/clock clocks 640 640 640 t hd active display period horizontal display term - lines - 1066 1031 t vb vertical total - lines - 1024 - t vd active display period vertical display term - hz 76 60 49 f v vsync - khz 81 64 52.2 f h hsync - mhz 68.4 54 44.1 1/t c frequency clock note unit max. typ. min. symbo l item signal www.datasheet.co.kr datasheet pdf - http://www..net/
product information product information 25/32 page LTM190ET01 model 6.2 timing diagrams of interfac e signal ( de only mode ) data signals de t vd t v t h d clk t c de t hd t vb 0.5 v cc t es t ds t dh t ch t cl t c de display data d clk 0.5 v cc 0.5 v cc www.datasheet.co.kr datasheet pdf - http://www..net/
product information product information 26/32 page LTM190ET01 model 6.3 power on/off sequence to prevent a latch-up or dc operatio n of the lcd module, the power on/off sequence should be as the diagram below. t1 : v dd rising time from 10% to 90% t2 : the time from v dd to valid data at power on. t3 : the time from valid data off to v dd off at power off. t4 : v dd off time for windows restart t5 : the time from valid data to b/l enable at power on. t6 : the time from valid data off to b/l disable at power off. ? the supply voltage of the external system for the module input should be the same as the definition of v dd . ? apply the lamp voltage within the lcd operation range. when the back light turns on before the lcd operation or the lcd turns off before the back light turns off, the display may momentarily show abnormal screen. ? in case of v dd = off level, please keep the level of input signals low or keep a high impedance. ? t4 should be measured after the module has been fully discharged between power off and on period. ? interface signal should not be kept at high impedance when the power is on. 300 k? t1 ? 10msec 0 ? t2 ? 50msec 0 ? t3 ? 50msec 1sec ? t4 back-light (recommended) 500msec ? t5 100msec ? t6 www.datasheet.co.kr datasheet pdf - http://www..net/
product information product information 27/32 page LTM190ET01 model 6.4 vdd power dip condition note (1) the above conditions are for the glitch of the input voltage. (2) for stable operation of an lcd module power, please follow them. i.e., if typ vdd x 80% ? vcc ? typ vdd x 90%, then t d should be less than 20ms. t d v cc v dd gnd 90% 80% 4.5v ? v dd ? 5.5v if v dd (typ.) x 80% ? v cc ? v dd (typ) x 90% then, 0

product information product information 28/32 page LTM190ET01 model 7. outline dimension [ refer to th e next page ] www.datasheet.co.kr datasheet pdf - http://www..net/
www.datasheet.co.kr datasheet pdf - http://www..net/
product information product information 30/32 page LTM190ET01 model (a) when the module is assembled, it sh ould be attached to the system firmly using all mounting holes. be carefu l not to twist and bend the module. (b) because the inverter uses high voltages, it should be disconnected from power source before it is assembled or disassembled. (c) refrain from strong mechanical shock and / or any force to the module. in addition to damage, it may cause improp er operation or da mage to the module and ccft back light. (d) note that polarizer films are very fragile and could be damaged easily. do not press or scratch the surf ace harder than a hb pencil lead. (e) wipe off water droplets or oil immedi ately. if you leave the droplets for a long time, staining or discoloration may occur. (f) if the surface of the polarizer is dirty, clean it using absorben t cotton or soft cloth. (g) desirable cleaners are water, ipa (isopropy l alcohol) or hexane. do not use ketone type materials (ex. acetone), ethyl alcohol, toluene, ethyl acid or methyl chloride. it might cause permanent damage to the polarizer due to chemical reaction. (h) if the liquid crystal material leaks from the panel, it should be kept away from the eyes or mouth . in case of contact with hands, legs or clothes, it must be washed away with soap thoroughly. (i) protect the module from static, or the cmos gate array ic would be damaged. (j) use finger-stalls with soft gloves in order to keep displa y clean during the incoming inspection and assembly process. (k) do not disassemble the module. (l) do not pull or fold the lamp wire. (m) do not adjust the variable resistor located on the module. (n) protection film for polarizer on the module should be slowly peeled off just before use so that the electrostati c charge can be minimized. (o) pins of i/f connector should not be touched directly with bare hands. 8. general precautions 8.1 handling www.datasheet.co.kr datasheet pdf - http://www..net/
product information product information 31/32 page LTM190ET01 model 8.2 storage (a) do not leave the mo dule in high temperature, and hi gh humidity for a long time. it is highly recommended to store the module with temperature from 0 to 35 ? and relative humidity of less than 70%. (b) do not store the tft-lcd module in direct sunlight. (c) the module should be stored in a dark plac e. it is prohibited to apply sunlight or fluorescent light in storing. 8.3 operation (a) do not connect or disconnect t he module in the "power on" condition. (b) power supply should always be turned on/off by the item 6.3 "power on/off sequence" (c) module has high frequ ency circuits. sufficient suppr ession to the electromagnetic interference should be done by system ma nufacturers. grounding and shielding methods may be important to minimize the interference. (d) the cable between the back light connector and its inverter power supply should be connected directly with a minimize d length. a longer cable between the back light and the inverter may caus e lower luminance of lamp(ccft) and may require higher startup voltage(vs). 8.4 operation condition guide (a) the lcd product should be oper ated under norm al conditions. normal condition is defined as below; - temperature : 20 ? 15 ? - humidity : 65 ? 20% - display pattern : continually ch anging pattern (not stationary) (b) if the product will be used in extreme conditions su ch as high temperature, humidity, display patterns or operation time etc.., it is strongly recommended to contact sec for application engineer ing advice. otherwise, its reliability and function may not be guarant eed. extreme conditions are commonly found at airports, transit stations, banks, stock market, and controlling systems. www.datasheet.co.kr datasheet pdf - http://www..net/
product information product information 32/32 page LTM190ET01 model 8.5 others (a) ultra-violet ray filter is necessary for outdoor operation. (b) avoid condensation of water. it may result in improper operat ion or disconnection of electrode. (c) do not exceed the absolute maximum ra ting value. ( supply voltage variation, input voltage variation, variation in part contents and envir onmental temperature, and so on) otherwise the module may be damaged. (d) if the module keeps displaying the sa me pattern for a long period of time, the image may be "sti cked" to the screen. to avoid image sticking, it is recommended to use a screen saver. (e) this module has its circuitry pcb's on the rear side and should be handled carefully in order not to be stressed. (f) please contact sec in advance when you display the same pattern for a long time. www.datasheet.co.kr datasheet pdf - http://www..net/

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