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customer : model name : LMC1623A-YTDDYN-B0 rev:a description : liquid crysral display module design check approved customer approval accept reject comment: approved by: specifications for approval date: 2005.02.21
contents 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. lcd module numbering system features mechanical specifications electrical specifications block diagram and power supply electro-optical characteristics terminal functions timing characteristics instruction set font table quality specifications reliability handling precautions outline dimension 1 2 2 2 4 5 6 7 9 12 13 18 19 21 1. samples outgoing inspection report 2. revision record
lcm module numbering system part number: lmax??yb-cdefghi-jk l: londa technology m: module a: display contents c--- character type g--- graphic type s---segment type x??: characters vs. lines for cm columns vs. rows for gm serials number for sm y: distribute according to size b o version of pcb c: lcd type: y---yellow stn g---gray stn b---blue stn f---fstn t---tn d: polarizer type: r--- reflective t--- transflective m--- transmissive e: viewing tempreture: u--- 12:00 d--- 6:00 l--- 9:00 r--- 3:00 f: backlight type: d---bottom led s---side led e--- el c--- ccfl n---no backlight g: color of backlight o y---yellow/green g--- green b--- blue w--- white o--- orange a--- amber h:operating tempreture: n--- normal, w--- extended , x:especially extended i: denote different character table: normal ellipsis, t--- tab , g--- cog ?jk: for cm: j: ic type: a--- ks0066u b--- splc780 k: character storeroom sequence number for gm: j: backlight driver y--- with n--- without k: dc-dc converter y--- with n--- without model LMC1623A-YTDDYN-B0 1/21 product specifications rev:a
1. features the features of lcd are as follows * display mode : stn, positive, transflective * color : display dot : dark blue background: yellow / green * display format : 16 x 2 characters * ic : samsung s6a0069 and s6a0065 * interface input data : 4-bit or 8-bit parallel * driving method : 1/16 duty, 1/4 bias * viewing direction : 6 o?clock * backlight : led (yellow-green) 2. mechanical specifications item specification unit module size 80(w) x 36(h) x 14.0max(t) mm viewing area 64.5(w) x 14(h) mm eff ective display area 57.70(w)x 9.40(h) mm character font 5 x 8 with cursor charact er pitch 3.65(w) x 5.05(h) mm charact er size 2.95(w) x 4.35(h) mm dot pitch 0.60(w) x 0.55(h) mm dot size 0.55(w) x 0.50(h) mm 3. electrical specifications 3-1. absolute maximum ratings (vss=0v) standard value item symbol min. typ. max. unit supply voltage for logic v dd -v ss -0 - +7.1 v supply voltage for lcd drive v dd -v 0 -0 - +10 v input voltage v in vss - v dd v operating temp. t op 0 - +50 c storage temp. t st -20 - +70 c notes : voltages vdd> v1> v2> v3> v4> v5> v 0 must always be satisfied. model lmc16 23 a - y t d d y n -b 0 2/2 1 product specifications rev: a
3. electrical specifications (continued) 3-2. electrical characteristics (vss=0v) item symbol test condition min. typ. max. unit logic supply v oltage v dd ? v ss ta=0~50c 4.5 5 5.5 v lcd drive voltage (recommended voltage) v dd ? v 0 ta=25c 3.9 4.5 4.9 v ?h? level v ih 0.8 - v dd v input voltage ?l? level v il v dd =5v 5% 0 - 0.2 v ?h? level v oh 0.8 - v dd v output voltage ?l? level v ol v dd =5v 5% 0 - 0.2 v current consumption i dd v dd =5v 5% v dd -v 0 =4.5v - 1.34 3.0 ma note: 1) duty ratio=1/16, bias ratio=1/4 2) measuring in dots on-state 3-3. backlight 3-3-1. absolute maximum ratings item symbol condition min. typ. max unit fo r w a r d cu r r ent i f - - 100 ma reverse voltage vr ta= 25 : - - 5 v po w e r dissi p a t i on pd t a = 2 5 : - - 50 0 mw 3-3-2. opto-electronic characteristics item symbol condition min. typ. max unit fo r w a r d v olta g e vf - 4 . 2 4 . 5 v luminous - ta= 25 : if= 100ma 100 - - cd / m 2 model lmc16 23 a - y t d d y n -b 0 3/2 1 product specifications rev: a
4. block diagram and power supply vo lcd panel s6a0069 osc2 vdd clk2 clk1 vss db0-db7 v5 v4 v3 v2 v1 m to mpu vdd vss s1-s40 c1-c16 osc1 d sc1-sc40 dl1 shl1 fcs shl2 v2 v4 v5 v3 v1 m cl2 dl2 dr2 cl1 dl1 s6a0065 model lmc16 23 a - y t d d y n -b 0 4/2 1 product specifications rev: a
5. electro ? optical characteristics item symbol temp. min. typ. max. unit conditions note ? 2 ? ? 1 30 92 - viewing angle ? 25 : 80 90 - deg. - 1,2 contrast ratio cr 25 : 2 11.1 11.9 - ? =0 ? =0 3 25 : - 92 250 response time(rise) tr 0 : - 950 1150 ms ? =0 ? =0 4 25 : - 119 250 response time(fall) tf 0 : - 950 1150 ms ? =0 ? =0 4 note1 . definition of angle ? & ? note2. definition of viewing angle ? 1 & ? 2 cr 2
6. terminal pin function 6-1. interface pin function description pin no. symbol i / o functions 1 v ss power gnd 2 v dd power power supply for logic circuit 3 v0 power contrast adjustment 4 rs i register select signal 5 r/w i used as read/write selection input when rw=?high? read operation rw=?low?, write operation 6 e i enable signal 7 db0 8 db1 9 db2 10 db3 11 db4 12 db5 13 db6 14 db7 i/o data bus model lmc16 23 a - y t d d y n -b 0 6/2 1 product specifications rev: a 15 a - backlight(+) 16 k - backlight(-)
7.timing characteristics 7-1. write mode (writing data from mpu to lcm) mode symbol min. typ. max. unit e cycle time t c 500 - - ns e rise / fall time t r
7.timing characteristics (continued) 7-2. read mode (reading data from mpu to lcm) mode symbol min. typ. max. unit e cycle time t c 500 - - ns e rise / fall time t r t f - - 20 ns e pulse width (high, low) t w 230 - - ns r/w and rs setup time t su1 40 - - ns r/w and rs hold time t h1 10 - - ns data output delay time t su2 - - 120 ns data hold time t h1 5 - - ns v 1h1 v 1l1 valid data v 1h1 e db0~db7 v 1h1 v 1l1 v 1l1 v 1h1 v 1l1 v 1h1 r/w rs v 1l1 v 1l1 v 1h1 v 1h1 t c t dh t w t h t h t r t d t su t f read mode timing diagram model lmc16 23 a - y t d d y n -b 0 8/21 product specifications rev:a
8.instruction set 8-1. instruction table function rs r/ w db 7 db 6 db 5 db 4 db 3 db 2 db 1 db 0 description execu. time*(max.) clear display 0 0 0 0 0 0 0 0 0 1 clear entire display 1.53ms return home 0 0 0 0 0 0 0 0 1 * return display being shifted to original position 1.53ms entry mode set 0 0 0 0 0 0 0 1 i/d s set cursor move direction and specifies shift of display 39us display on/off control 0 0 0 0 0 0 1 d c b d: display on /off c: cursor on/off b: cursor blink/not 39us cursor or display shift 0 0 0 0 0 1 s/c r/l ** move cursor and shift display 39us function set 0 0 0 0 1 dl n f * * set dl, n, f 39us set cg ram address 0 0 0 1 acg set cg ram address 39us set dd ram address 0 0 1 add set dd ram address 39us read busy flag & address 0 1 bf ac bf: busy flag read ac contents 0us write data to cg ram 1 0 write data write data to dd ram or cg ram 43us read data from cg/dd ram 1 1 read data read data from dd ram or cg ram 43us remark i/d = 1 : increment 0 : decrement s = 1 : accompanies display shift s/c = 1 : display shift 0 : cursor move r/l = 1 : shift right 0 : shift left dl = 1 : 8 bits 0 : 4 bits n = 1 : 2 lines 0 : 1 line f = 1 : 5 x 10 dots 0 : 5 x 7 dots bf = 1 : internally operating 0 : can accept instruction dd ram : display data ram cg ram : character generator ram acg : cg ram address add : dd ram address corresponds to cursor address ac : address counter used for both dd and cg ram address * no effect (don't care) note: when an mpu program with checking the busy flag(db7) is made, it must be necessary 1/2fosc is necessary for executing the next instruction by the falling edge of the ?e? signal after the busy flag(db7) goes to ?low?. 8-2. ddram address display position column 1 2 - - - 15 16 1-line 00h 01h - - - 0eh 0fh dd ram address (hex-decimal) 2-line 40h 41h - - - 4eh 4fh model lmc16 23 a - y t d d y n -b 0 9/21 product specifications rev:a
8.instruction set (continued) 8-3. instruction initialization 8-3-1. 8-bit interface mode model lmc16 23 a - y t d d y n -b 0 10/21 product specifications rev:a
8.instruction set (continued) 8-3. instruction initialization (continued) 8-3-2. 4-bit interface mode model lmc16 23 a - y t d d y n -b 0 11/21 product specifications rev:a
9. font table model LMC1623A-YTDDYN-B0 12/21 product specifications rev:a
10. quality specifications 10 - 1. lcm appearance and electric inspection condition 1. inspection will be done by placing lcm 30cm away from inspector's eyeballs under normal illumination. 45 metal (platic) frame lcd glass bottom polarizer backlight upper polarizer conductive rubber pcb foot (frame) coating epoxy 2. view angle: with in 45 c around perpendicular line. 10 - 2. definition 1. cob pcb metal (plastic) frame lcd 2. heat seal gasket lcd heat seal 3. tab and cog ito terminal pad lcd glass lcd glass ic pin tab cog ic model lmc16 23 a - y t d d y n -b 0 13/21 product specifications rev:a
10. quality specifications (continued) 10-3. sampling plan and acceptance 1. sampling plan mil - std - 105e (
10. quality secifications (continued) 10-4. criteria (continued) 3. metal (plastic) frame defect inspection item inspection standards major crack / breakage anywhere reject w l acceptable of scratch w<0.1mm any ignore 0.1< w<0.2mm l< 5.0mm 2 0.2< w<0.3mm l< 3.0mm 1 w> 0.3mm any 0 minor frame scratch note : 1. above criteria applicable to scratch lines with distance greater than 5mm. 2. scratch on the back side of frame (not visible ) can be i g nored . acceptable of dents / pricks ? < 1.0mm 2 1.0< ? < 1.5mm 1 1.5mm< ? 0 minor frame dent , prick ? = l + w 2 note : 1. above criteria applicable to any two dents / pricks with distance greater than 5mm 2. dent / prick on the back side of frame (not visible) can be ignored minor frame deformation exceed the dimension of drawing minor metal frame oxidation any rust 4. flexible film connector (ffc) defect inspection item inspection standards minor tilted soldering within the angle +5 acceptable minor uneven solder joint /bump reject expose the conductive line reject minor hole ? = l + w 2 ? > 1.0mm reject y > 1/3d reject minor position shift x y d z x > 1/2z reject model lmc16 23 a - y t d d y n -b 0 15/21 product specifications rev:a
10. quality specifications (continued) 10-4. criteria (continued) 5. screw defect inspection item inspection standards major screw missing/loosen reject minor screw oxidation any rust reject minor screw deformation difficult to accept screw driver reject 6. heatseal ? tcp ? fpc defect inspection item inspection standards major scratch expose conductive layer reject minor hs hole ? = l + w 2 ? > 0.5mm reject major adhesion strength less than the specification reject y > 1/3d reject minor position shift x y d z x > 1/2z reject major conductive line break reject 7. led backing protective film and others defect inspection item inspection standards acceptable number of units ? < 0.10mm lgnore 0.10< ? < 0.15mm 2 0.15< ? < 0.2mm 1 ? >0.2mm 0 minor led dirty, prick the distance between any two spots should be > 5mm any spot/dot/void outside of viewing area is acceptable minor protective film tilt not fully cover lcd reject major cog coating not fully cover ito circuit reject 8. electric inspection defect inspection item inspection standards major short reject major open reject model lmc16 23 a - y t d d y n -b 0 16/21 product specifications rev:a
10. quality specifications (continued) 10-4. criteria (continued) 9. inspection specification of lcd defect inspect item inspection standards w w< 0.03 0.030.05 l l<5 l<3 any acc. no. 1 1 reject minor linear defect glass scratch polarizer scratch fiber and linear material note l is the length and w is the width of the defect ? ? < 0.1 0.1< ? < 0.15 0.15< ? < 0.2 ? >0.2 acc. no. 3ea / 100mm 2 2 1 0 minor black spot and polarizer pricked foreign material between glass and polarizer or glass and glass polarizer hole or protuberance by external force note ? is the average diameter of the defect. distance between two defects > 10mm. ? ? < 0.3 0.3< ? < 0.5 0.5< ? acc. no. 3ea / 100mm 2 1 0 minor white spot and bubble in polarizer unobvious transparant foreign material between glass and glass or glass and polarizer air protuberance between polarizer and glass note ? is the average diameter of the defect. distance between two defects > 10mm. ? ? < 0.10 0.10< ? < 0.20 0.20< ? < 0.25 ? >0.25 acc. no. 3ea / 100mm 2 2 1 0 w is more than 1/2 segment width reject minor segment defect w w l l l w w l note ? = l + w 2 distance between two defect is 10mm ? ? < 0.10 0.10< ? < 0.20 0.20< ? < 0.25 ? >0.25 w glue w< 1/2 seg w< 0.2 w< 1/2 seg w< 0.2 ignore minor protuberant segment w l ? = ( l + w ) / 2 acc. no. 3ea / 100mm 2 2 1 0 1. segment b b< 0.4mm 0.41.0mm b-a b-a<1/2b b-a<0.2 b-a<0.25 a b judge acceptable acceptable acceptable 2. dot matrix minor assembly mis-alignment deformation>2 reject minor stain on lcd panel surface a ccept when stains can be wiped lightly with a soft cloth or a similar one. otherwise, judged according to the above items: ?black spot? and ?white spot? model lmc16 23 a - y t d d y n -b 0 17/21 product specifications rev:a
11. reliability no. item condition criterion 1 high temperature ope ra ting 50 : , 240hrs 2 low temperature o perating 0 : , 240hrs 3 high humidity 40 : , 90%rh, 96hrs 4 high temperature s torage 70 : , 240hrs 5 low temperature s torage -20 : , 240hrs 6 vibration random wave 10 ~ 100hz acceleration: 2g 2 hrs per direction(x,y,z) 7 thermal shock 0 : to 25 : to 50 : (60min) (5min) (60min) 10cycles no defect in cosmetic and operational function allowable. total current consumption should be below double of initial value. contract discharge voltage: +1 ~ 5kv and ?1 ~ ?5kv 8 esd testing air discharge voltage: +1 ~ 8kv and ?1 ~ -8kv there will be discharged ten times at every discharging voltage cycle. the voltage gap is 1kv. note: 1) above conditions are suitable for goldentek standard products. 2) for restrict products, the test conditions listed as above must be revised. model lmc16 23 a - y t d d y n -b 0 18/21 product specifications rev:a
12. handling precautions (1) mounting method the panel of the lcd module consists of two thin glass plates with polarizers which easily get damaged since the module is fixed by utilizing fitting holes in the printed circuit board. extreme care should be taken when handling the lcd modules. (2) caution of lcd handling & cleaning when cleaning the display surface, use soft cloth with solvent (recommended below) and wipe lightly. - isopropyl alcohol - ethyl alcohol - trichlorotrifloroethane do not wipe the display surface with dry or hard materials that will damage the polarizer surface. do not use the following solvent: - water - ketone - aromatics (3) caution against static charge the lcd module use c-mos lsi drivers, so we recommend that you connect any unused input terminal to vdd or vss, do not input any signals before power is turned on. and ground your body, work/assembly table. and assembly equipment to protect against static electricity. (4) packaging - modules use lcd elements, and must be treated as such. avoid intense shock and falls from a height. - to prevent modules from degradation. do not operate or store them exposed directly to sunshine or high temperature/humidity. (5) caution for operation - it is indispensable to drive lcd?s within the specified voltage limit since the higher voltage than the limit shorten lcd life. an electrochemical reaction due to direct current causes lcd deterioration, avoid the use of direct current drive. model lmc16 23 a - y t d d y n -b 0 19/21 product specifications rev:a
12. handling precautions (continued) - response time will be extremely delayed at lower temperature than the operating temperature range and on the other hand at higher temperature lcd?s show dark color in them. however those phenomena do not mean malfunction or out of order with lcd?s. which will come back in the specified operating temperature range. - if the display area is pushed hard during operation, some font will be abnormally displayed but it resumes normal condition after turning off once. - a slight dew depositing on terminals is a cause for electro-chemical reaction resulting in terminal open circuit. usage under the relative condition of 40 c, 50%rh or less is required. (6) storage in the case of storing for a long period of time (for instance ,for years) for the purpose or replacement use, the following ways are recommended. - storage in a polyethylene bag with sealed so as not to enter fresh air outside in it, and with no desiccant. - placing in a dark place where neither exposure to direct sunlight nor light is. keeping temperature in the specified storage temperature range. - storing with no touch on polarizer surface by the anything else. (it is recommended to store them as they have been contained in the inner container at the time of delivery) (7) safety - it is recommendable to crash damaged or unnecessary lcd into pieces and wash off liquid crystal by using solvents such as acetone and ethanol. which should be burned up later. - when any liquid crystal leaked out of a damaged glass cell comes in contact with your hands, please wash it off well with soap and water. model lmc16 23 a - y t d d y n -b 0 20/21 product specifications rev:a
13. outline drawing model lmc16 23 a - y t d d y n -b 0 21/21 product specifications rev:a

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