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model LTM240CL01 page product information samsung tft-lcd product information model : LTM240CL01 issued date : 2011-2- 21 note : this is product information is subject to change after 3 months of issuing date. application engineering group, lcd sales & marketing team lcd business, samsung electronics co . , ltd. 1 /31 for distec only
model LTM240CL01 page product information contents general description --------------------------------------------------------------------------------- (3) 1. absolute maximum ratings -------------------------------------------------------------------- (4) 2. optical characteristics --------------------------------------------------------------------------- (6) 3. electrical characteristics ----------------------------------------------------------------------- (11) 3.1 tft lcd module 3.2 back light unit 4. block diagram ------------------------------------------------------------------------------------ (14) 4.1 tft lcd module 4.2 back light unit 5. input terminal pin assignment ---------------------------------------------------------------- (15) 5.1 input signal & power 5.2 input power 5.3 back light unit 5.4 lvds interface 5.5 input signals, basic display colors and gray scale of each color 6. interface timing ----------------------------------------------------------------------------------- (23) 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 -------------------------------------------------------------------------------- (27) 8. general precaution ------------------------------------------------------------------------------- (29) 8.1 handling 8.2 storage 8.3 operation 8.4 operation condition guide 8.5 others 2 /31 for distec only
model LTM240CL01 page product information general description features description applications general information items specification unit note pixel pitch 0.270(h) x 0.270(w) mm active display area 518.4(h) x 324.0(v) mm surface treatment (haze 47%), hard C coating(3h) display colors 16.7m colors number of pixels 1920 x 1200 pixel pixel arrangement rgb vertical stripe display mode normally black luminance of white 300(typ.) cd/ O LTM240CL01 is a color active matrix liquid crystal display (lcd) that uses amorphous silicon tft (thin film transistor) as switching components. this model is composed of a tft lcd panel, a driver circuit and a back light unit. the resolution of a 24.0 is 1920 x 1200 and this model can display up to 16.7 millions colors. ? workstation & desktop monitors ? mfm & graphic application ? display terminals for av application products ? financial market ? monitors for industrial machine ? monitors for hdtv ? monitors for professional medical machine * if the module is used to other applications besides the above, please contact sec in advance. ? high color saturation, high aperture structure ? pls mode ? wide viewing angle ? wuxga (1920 x 1200 pixels) resolution ? de (data enable) only mode ? white led edge backlight (1-side) ? rohs, halogen free compliance ? tco 5.0 compliances ( except for 2.2 response time; this product does not have over driving function. it is recommended to support in system level ) 3 /31 for distec only
model LTM240CL01 page product information note (1) mechanical tolerance is 0.5mm unless there is a special comment. mechanical information 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 item min. typ. max. unit note module size horizontal (h) 545.9 546.4 546.9 mm - vertical (v) 351.5 352.0 352.5 mm depth (d) - - 15.0 mm weight - - 2400 g lcd module only item symbol min. max. unit note power supply voltage v dd gnd-0.5 5.5 v storage temperature t stg - 20 60 (1) glass surface temperature (operation condition) t opr 0 50 shock ( non - operating ) s nop - 50 g (2) vibration ( non - operating ) v nop - 1.5 g (3) 4 /31 for distec only
model LTM240CL01 page product information (1) 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 (2) 11ms, sine wave, one time for x, y, z axis (3) 10-300 hz, sweep rate 10min, 30min for x,y,z axis fig. temperature and relative humidity range 5 /31 (39,90) (39,90) (60,27.7) (60,27.7) (50,50.4) (50,50.4) ( ( - - 25,5) 25,5) (39,90) (39,90) (60,27.7) (60,27.7) (50,50.4) (50,50.4) ( ( - - 25,5) 25,5) for distec only
model LTM240CL01 page product information 2. optical characteristics * c.g.l : color grayscale linearity (continue to the next page) item symbol condition min. typ. max. unit note contrast ratio (center of screen) c/r 600 1,000 - (3) sr -3 response time on/off tr + tf - 12 - msec (5) rd- 80s luminance of white (center of screen) y l 250 300 - cd/m2 (6) sr -3 color chromaticity (cie 1931) red rx - 0.030 (0.640) +0.030 ry (0.330) green gx normal l,r =0 u,d =0 viewing angle (0.300) gy (0.600) blue bx (0.150) by (0.060) white wx 0.313 wy 0.329 (7),(8) color chromaticity (cie 1976) red ru' - (0.451) - sr -3 rv' - (0.523) - green gu' - (0.125) - gv' - (0.563) - blue bu' - (0.175) - bv' - (0.158) - white wu' - 0.198 - wv' - 0.468 - c.g.l white u'v' - - 0.02 (9) the optical characteristics should be measured in a dark room or equivalent. measuring equipment : sr-3, rd-80s (topcon), ez-contrast (eldim) (ta = 25 2 c, vdd=5v, fv= 60hz, fdclk= 77mhz, if = 480 ma ) 6 /31 for distec only
model LTM240CL01 page product information 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. led current : 480 ma environment condition : ta = 25 2 c photo detector field sr -3 1 photo detector lcd panel tft - lcd module the center of the screen sr -3 : 50 M field item symbol condition min. typ. max. unit note color gamut - - 72 - % color temperature - - 6500 - k viewing angle hor. l cr 10 80 89 - degrees (8) sr -3 r 80 89 - ver. u 80 89 - d 80 89 - brightness uniformity (9 points) b uni - - 25 % (4) sr -3 7 /31 for distec only
model LTM240CL01 page product information 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 bmax : maximum brightness with all pixels white bmin : minimum brightness with all pixels white gmax : luminance with all pixels white gmin : luminance with all pixels black note (2) definition of test point 6 8 7 9 3 2 1 4 5 192 960 1728 120 600 1080 active area : test point 8 /31 buni b b b ? ? ? 100 ( max min) max cr g g ? max min for distec only
model LTM240CL01 page product information note (5) definition of response time a. on/off response time : sum of tr, tf black (tft off) white (tft on) black (tft off) 100% 90% 10% 0% t r t f optical response display data time 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 ) 9 /31 for distec only
model LTM240CL01 page product information 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 uv. 10 /31 ? u' v' = (u' - u' ) + (v' - v' ) a b 2 a b 2 for distec only
model LTM240CL01 page product information 3. electrical characteristics 3.1 tft lcd module the connector for display data & timing signal should be connected. ta = 25 c item symbol min. typ. max. unit note voltage of power supply v dd 4.5 5.0 5.5 v (1) interface type lvds lvds current of power supply (a) black i dd - 900 - ma (2),(3) (b) white - 1,400 - ma (c) dot - 1,200 1,800 ma vsync frequency f v 45 60 80 hz hsync frequency f h 55 74 98 khz main frequency f dclk 58 77 103 mhz rush current i rush - - 5.0 a (4) 11 /31 for distec only
model LTM240CL01 page product information rush current i rush can be measured when t rush . is 470 ?. t rush =470 ? 100% gnd 90% 10% v dd (4) measurement condition note (1) the ripple voltage should be controlled under 10% of v dd . (2) fv=60hz, fdclk = 77mhz, vdd = 5.0v, dc current. (3) power dissipation check pattern (lcd module only) a) white pattern b) black pattern c) dot pattern 12 /31 for distec only
model LTM240CL01 page product information 3.2 back light unit 3.2.1 the characteristics of led bar the back light unit is composed of wled. ta=25 2 c item symbol min. typ. max. unit note led forward current i f - 480 - ma (1) led array voltage v p - 46.2 49 v (1) operating life time hr 30,000 - - hour (2) note (1) the above specification is not for the converter output, but for the led bar. the led bar consists of 56 led packages ; 4 parallel x 14 serial (2) life time(hr) is defined as the time when brightness of a led package itself becomes 50% or less than its original value at the condition of ta=25 2 c and i f =480ma 13 /31 for distec only
model LTM240CL01 page product information 4. block diagram 4.2 back light unit 4.1 tft lcd module 14 /31 connector: molex 1.25 wtb conn (6-pin connector) or equivalent 6 - pin connector led bar led power led return signal led power led return signal power circuit column driver circuit tft-lcd (1920 x rgb x 1200 pixels) s1 s1920 timing controller source driver ics lvds (rx) hf mlvds(tx) control signal hf mlvds cn1 (30pin) lvds pair #1 lvds pair #2 +5.0v v dd control signal for distec only
model LTM240CL01 page product information 5.1. input signal & power ( connector : p-two 196308-30041 or equivale nt ) 5. input terminal pin assignment pin no symbol function 1 rxo0n negative lvds differential data output 2 rxo0p positive lvds differential data output 3 rxo1n negative lvds differential data output 4 rxo1p positive lvds differential data output 5 rxo2n negative lvds differential data output 6 rxo2p positive lvds differential data output 7 gnd ground 8 rxoc- negative sampling clock (odd data) 9 rxoc+ positive sampling clock (odd data) 10 rxo3n negative lvds differential data output 11 rxo3p positive lvds differential data output 12 rxe0n negative lvds differential data output 13 rxe0p positive lvds differential data output 14 gnd ground 15 rxe1n negative lvds differential data output 16 rxe1p positive lvds differential data output 17 gnd ground 18 rxe2n negative lvds differential data output 19 rxe2p positive lvds differential data output 20 rxec- negative sampling clock (even data) 21 rxec+ positive sampling clock (even data) 22 rxe3n negative lvds differential data output 23 rxe3p positive lvds differential data output 24 gnd ground 25 nc * ce (for lcd internal use only. do not connect) 26 nc * ctl (for lcd internal use only. do not connect) 27 nc no connection 28 vdd power supply : +5v 29 vdd 30 vdd 15 /31 for distec only
model LTM240CL01 page product information a. all gnd pins should be connected together and also be connected to the lcds metal chassis. b. all power input pins should be connected together. c. all nc pins should be separated from other signal or power. note) pin number starts from left side 16 /31 pin no. 1 pin no. 30 pcb fig. connector diagram #1 # 30 #1 # 30 p-two 196308- 30041 or equivalent for distec only
model LTM240CL01 page product information 5.3 back light unit 17 /31 led bar input connector : molex 1.25 wtb conn (6-pin connector) or equivalent pin no. pin description description 1 rtn 1 channel 1 return signal 2 rtn 2 channel 2 return signal 3 vin led power input 4 vin led power input 5 rtn 3 channel 3 return signal 6 rtn 4 channel 4 return signal note ) pin number starts from left side fig. connector diagram connector rear view of panel #6 #1 for distec only
model LTM240CL01 page product information 5.4 lvds interface 5.4.1 odd pixel data (1st pixel data) 1st lvds transmitter ( ds90c383, ds90c385 ) signal interface device input pin device input signal output signal to LTM240CL01 interface ( cn1 ) no symbol symbol function terminal symbol 51 txin0 ro0 red odd pixel data (lsb) txout0- txout0+ no. 1 no. 2 rxo0- rxo0+ 52 txin1 ro1 red odd pixel data 54 txin2 ro2 red odd pixel data 55 txin3 ro3 red odd pixel data 56 txin4 ro4 red odd pixel data 2 txin5 ro7 red odd pixel data (msb) txout3- txout3+ no. 10 no. 11 rxo3- rxo3+ 3 txin6 ro5 red odd pixel data txout0- txout0+ no. 1 no. 2 rxo0- rxo0+ 4 txin7 go0 green odd pixel data (lsb) 6 txin8 go1 green odd pixel data txout1- txout1+ no. 3 no. 4 rxo1- rxo1+ 7 txin9 go2 green odd pixel data 8 txin10 go6 green odd pixel data txout3- txout3+ no. 10 no. 11 rxo3- rxo3+ 10 txin11 go7 green odd pixel data (msb) 11 txin12 go3 green odd pixel data txout1- txout1+ no. 3 no. 4 rxo1- rxo1+ 12 txin13 go4 green odd pixel data 14 txin14 go5 green odd pixel data 15 txin15 bo0 blue odd pixel data (lsb) 16 txin16 bo6 blue odd pixel data txout3- txout3+ no. 10 no. 11 rxo3- rxo3+ 18 txin17 bo7 blue odd pixel data (msb) 19 txin18 bo1 blue odd pixel data txout1- txout1+ no. 3 no. 4 rxo1- rxo1+ 20 txin19 bo2 blue odd pixel data txout2- txout2+ no. 5 no. 6 rxo2- rxo2+ 22 txin20 bo3 blue odd pixel data 23 txin21 bo4 blue odd pixel data 24 txin22 bo5 blue odd pixel data 50 txin27 ro6 red odd pixel data txout3- txout3+ no. 10 no. 11 rxo3- rxo3+ 18 /31 for distec only
model LTM240CL01 page product information 2nd lvds transmitter ( ds90c383, ds90c385 ) signal interface device input pin device input signal output signal to LTM240CL01 interface ( cn1 ) no symbol symbol function terminal symbol 51 txin0 re0 red even pixel data (lsb) txout0- txout0+ no. 12 no. 13 rxe0- rxe0+ 52 txin1 re1 red even pixel data 54 txin2 re2 red even pixel data 55 txin3 re3 red even pixel data 56 txin4 re4 red even pixel data 2 txin5 re7 red even pixel data (msb) txout3- txout3+ no. 22 no. 23 rxe3- rxe3+ 3 txin6 re5 red even pixel data txout0- txout0+ no. 12 no. 13 rxe0- rxe0+ 4 txin7 ge0 green even pixel data (lsb) 6 txin8 ge1 green even pixel data txout1- txout1+ no. 15 no. 16 rxe1- rxe1+ 7 txin9 ge2 green even pixel data 8 txin10 ge6 green even pixel data txout3- txout3+ no. 22 no. 23 rxe3- rxe3+ 10 txin11 ge7 green even pixel data (msb) 11 txin12 ge3 green even pixel data txout1- txout1+ no. 15 no. 16 rxe1- rxe1+ 12 txin13 ge4 green even pixel data 14 txin14 ge5 green even pixel data 15 txin15 be0 blue even pixel data (lsb) 16 txin16 be6 blue even pixel data txout3- txout3+ no. 22 no. 23 rxe3- rxe3+ 18 txin17 be7 blue even pixel data (msb) 19 txin18 be1 blue even pixel data txout1- txout1+ no. 15 no. 16 rxe1- rxe1+ 20 txin19 be2 blue even pixel data txout2- txout2+ no. 18 no. 19 rxe2- rxe2+ 22 txin20 be3 blue even pixel data 23 txin21 be4 blue even pixel data 24 txin22 be5 blue even pixel data 50 txin27 re6 red even pixel data txout3- txout3+ no. 22 no. 23 rxe3- rxe3+ 5.4.2 even pixel data (2nd pixel data) 19 /31 for distec only
model LTM240CL01 page product information lvds transmitter ( ds90c387 ) signal interface device input pin device input signal output signal to LTM240CL01 interface ( cn1 ) no symbol symbol function terminal symbol 10 r10 ro0 red odd pixel data (lsb) a0m a0p no. 1 no. 2 rxo0- rxo0+ 9 r11 ro1 red odd pixel data 8 r12 ro2 red odd pixel data 7 r13 ro3 red odd pixel data 6 r14 ro4 red odd pixel data 3 r17 ro7 red odd pixel data (msb) a3m a3p no. 10 no. 11 rxo3- rxo3+ 5 r15 ro5 red odd pixel data a0m a0p no. 1 no. 2 rxo0- rxo0+ 2 g10 go0 green odd pixel data (lsb) 1 g11 go1 green odd pixel data a1m a1p no. 3 no. 4 rxo1- rxo1+ 100 g12 go2 green odd pixel data 94 g16 go6 green odd pixel data a3m a3p no. 10 no. 11 rxo3- rxo3+ 93 g17 go7 green odd pixel data (msb) 99 g13 go3 green odd pixel data a1m a1p no. 3 no. 4 rxo1- rxo1+ 96 g14 go4 green odd pixel data 95 g15 go5 green odd pixel data 92 b10 bo0 blue odd pixel data (lsb) 86 b16 bo6 blue odd pixel data a3m a3p no. 10 no. 11 rxo3- rxo3+ 85 b17 bo7 blue odd pixel data (msb) 91 b11 bo1 blue odd pixel data a1m a1p no. 3 no. 4 rxo1- rxo1+ 90 b12 bo2 blue odd pixel data a2m a2p no. 5 no. 6 rxo2- rxo2+ 89 b13 bo3 blue odd pixel data 88 b14 bo4 blue odd pixel data 87 b15 bo5 blue odd pixel data 4 r16 ro6 red odd pixel data a3m a3p no. 10 no. 11 rxo3- rxo3+ 5.4.3 odd pixel data (1st pixel data)) 20 /31 for distec only
model LTM240CL01 page product information lvds transmitter ( ds90c387 ) signal interface device input pin device input signal output signal to LTM240CL01 interface ( cn1 ) no symbol symbol function terminal symbol 84 r20 re0 red even pixel data (lsb) a4m a4p no. 12 no. 13 rxe0- rxe0+ 81 r21 re1 red even pixel data 80 r22 re2 red even pixel data 79 r23 re3 red even pixel data 78 r24 re4 red even pixel data 75 r27 re7 red even pixel data (msb) a7m a7p no. 22 no. 23 rxe3- rxe3+ 77 r25 re5 red even pixel data a4m a4p no. 12 no. 13 rxe0- rxe0+ 74 g20 ge0 green even pixel data (lsb) 73 g21 ge1 green even pixel data a5m a5p no. 15 no. 16 rxe1- rxe1+ 72 g22 ge2 green even pixel data 66 g26 ge6 green even pixel data a7m a7p no. 22 no. 23 rxe3- rxe3+ 65 g27 ge7 green even pixel data (msb) 71 g23 ge3 green even pixel data a5m a5p no. 15 no. 16 rxe1- rxe1+ 70 g24 ge4 green even pixel data 69 g25 ge5 green even pixel data 64 b20 be0 blue even pixel data (lsb) 58 b26 be6 blue even pixel data a7m a7p no. 22 no. 23 rxe3- rxe3+ 57 b27 be7 blue even pixel data (msb) 63 b21 be1 blue even pixel data a5m a5p no. 15 no. 16 rxe1- rxe1+ 62 b22 be2 blue even pixel data a6m a6p no. 18 no. 19 rxe2- rxe2+ 61 b23 be3 blue even pixel data 60 b24 be4 blue even pixel data 59 b25 be5 blue even pixel data 76 r26 re6 red even pixel data a7m a7p no. 22 no. 23 rxe3- rxe3+ 5.4.4 even pixel data (2nd pixel data) 21 /31 for distec only
model LTM240CL01 page product information 5.5 input signals, basic display colors and gray scale of each color colo r display (8bit) data signal gray scale level red green blue r0 r1 r2 r3 r4 r5 r6 r7 g0 g 1 g 2 g3 g 4 g 5 g6 g 7 b0 b1 b2 b3 b4 b5 b6 b7 basic colo r black 0 0 0 0 0 0 0 0 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 1 1 1 1 1 1 1 1 - green 0 0 0 0 0 0 0 0 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 1 1 1 1 1 1 1 1 - red 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 - magent a 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 - yellow 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 - white 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 - gray scale of red black 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 r0 dark light 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 r1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 r2 : : : : : : : : : : : : : : : : : : r3~ r252 : : : : : : : : : : : : : : : : : : 1 0 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 r253 0 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 r254 red 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 r255 gray scale of gree n black 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 g0 dark light 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 g1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 g2 : : : : : : : : : : : : : : : : : : g3~ g252 : : : : : : : : : : : : : : : : : : 0 0 0 0 0 0 0 0 1 0 1 1 1 1 1 1 0 0 0 0 0 0 0 0 g253 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 g254 green 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 g255 gray scale of blue black 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 b0 dark light 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 b1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 b2 : : : : : : : : : : : : : : : : : : b3~ b252 : : : : : : : : : : : : : : : : : : 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 1 1 1 1 1 b253 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 b254 blue 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 b255 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 22 /31 for distec only
model LTM240CL01 page product information 6. interface timing 6.1 timing parameters ( de only mode ) signal item symbol min. typ. max. unit note clock frequency 1/t c 58 77 103 mhz - hsync f h 55 74 98 khz - vsync f v 45 60 80 hz - vertical display term active display period t vd 1200 1200 1200 lines - vertical total t vb 1209 1235 1245 lines - horizontal display term active display period t hd 960 960 960 pixels 2pixel /clock horizontal total t h 993 1040 1075 pixels 2pixel /clock 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 and clk at lvds tx input terminal in system (3) internal vcc = 5.0v 23 /31 for distec only
model LTM240CL01 page product information 6.2 timing diagrams of interface 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 24 /31 for distec only
model LTM240CL01 page product information 6.3 power on/off sequence to prevent a latch-up or dc operation 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. 0t110msec 0t250msec 0t350msec 1sect4 back- light (recommended) 500msect5 100msect6 25 /31 for distec only
model LTM240CL01 page product information 6.4 vdd power dip sequence 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

model LTM240CL01 page product information 7. outline dimension [ refer to the next page ] 27 /31 for distec only
for distec only
model LTM240CL01 page product information (a) when the module is assembled, it should be attached to the system firmly using all mounting holes. be careful 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 improper operation or damage to the module and led back light. (d) note that polarizer films are very fragile and could be damaged easily. do not press or scratch the surface harder than a hb pencil lead. (e) wipe off water droplets or oil immediately. 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 absorbent cotton or soft cloth. (g) desirable cleaners are water, ipa (isopropyl 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 display 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 electrostatic charge can be minimized. (o) pins of i/f connector should not be touched directly with bare hands. 8. general precautions 8.1 handling 29 /31 for distec only
model LTM240CL01 page product information 8.2 storage (a) do not leave the module in high temperature, and high humidity for a long time. it is highly recommended to store the module with temperature from 5 to 40 c and relative humidity of less than 70%. (b) do not store the tft-lcd module in direct sunlight. (c) the module shall be stored in a dark place. it is prohibited to apply sunlight or fluorescent light during the store. (d) storage period is recommended not to exceed 1 year. 8.3 operation (a) do not connect or disconnect the 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 frequency circuits. sufficient suppression to the electromagnetic interference should be done by system manufacturers. grounding and shielding methods may be important to minimize the interference. 8.4 operation condition guide (a) the lcd product should be operated under normal conditions. normal condition is defined as below; - temperature : 20 15 - humidity : 65 20% - display pattern : continually changing pattern (not stationary) (b) if the product will be used in extreme conditions such as high temperature, humidity, display patterns or operation time etc.., it is strongly recommended to contact sec for application engineering advice. otherwise, its reliability and function may not be guaranteed. extreme conditions are commonly found at airports, transit stations, banks, stock market, and controlling systems. 30 /31 for distec only
model LTM240CL01 page product information 8.5 others (a) ultra-violet ray filter is necessary for outdoor operation. (b) avoid condensation of water. it may result in improper operation or disconnection of electrode. (c) do not exceed the absolute maximum rating value. ( supply voltage variation, input voltage variation, variation in part contents and environmental temperature, and so on) otherwise the module may be damaged. (d) if the module keeps displaying the same pattern for a long period of time, the image may be "stuck" 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. 31 /31 for distec only

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