revisions rev. description date approved the information disclosed herein was originated by and is the property of densitron international. densitron international reserves all patent, proprietary, design, use, sales, manufacturing and reproduction rights thereto. approvals date drawn checked issued unless otherwise specified: dimensions are mm tolerances are: x = 3 .x = 0.5 .xx = 0.05 fscm no. 62483 densitron international plc. title sheet 1 of 8 dwg. no. LM4229 240 x 128 graphics lcd module c released on ecn #e0495 8/5/96 ma 1. specification subject to change without notice. 2. all dimensions and specifications apply to standard module s. this information may vary for modules with optional features. 3. all dimensions are in millimeters. 4. precautions :these precautions apply equally to modules from all makers, not just densitron. violation of these guidelines may void the warranty and can cause problems ranging from erratic operation to catastrophic display failure. 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 v dd and v ss , however briefly. use a clean power source free from transients. power up conditions are occasionally ?jolting? and may exceed the maximum ratings of the module. the +5v power of the module should also supply the power to all devices which may access the display. don?t allow the data bus to be driven when the logic supply to the module is turned off. do not install a capacitor between the v o (contrast) pin and ground. v dd must, at all times, exceed the v o voltage level. the capacitor combines with the contrast potentiometer to form an r-c network which ?holds-up? v o , at power-down, possibly damaging the module. 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. (recommended max. length 30 cm). for models with el or ccfl backlights, do not disable the backlight by interrupting the hv line. unloaded inverters produce voltage extremes which may arc within a cable or at the display. operate 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 connection and cause display failure. densitron recommends the use of kester ?245? no-clean solder. mount the module so that it is free from torque and mechanical stress. surface of 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 temperature 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. notes: (unless otherwise specified)
sheet of dwg. no. LM4229 rev. c 1.0 description dot matrix display module consisting of liquid crystal display, cmos driver and toshiba t6963c controller lsi, printed circuit board, metal support frame and light emitting diode (led) backlight. available lc fluid type is: ntn (supertwisted nematic), ntn-h (extended temperature range ntn). other options include on-board negative voltage generation circuitry and on-board temperature compensation circuitry. 2.0 mechanical characteristics item specifications unit package dimensions 144.0 (w) x 104.0 (h) x 15.6 max (d) mm display format 128 dots (h) x 240 dots (w) - driving method 1/128 duty dot size 0.40 (w) x 0.40 (h) mm dot pitch 0.45 (w) x 0.45 (h) mm active display area 107.95 (w) x 57.55 (h) mm viewing area 114.0 (w) x 64.0 (h) mm weight g notes : w -width;h-height;d-depth. 3.0 absolute maximum ratings v ss =0v;t a =25c item symbol fstn,ntn fstn-h,ntn-h unit min. max. min. max. logic supply voltage v dd - v ss 0 7 0 7 v lc driver supply voltage v dd - v o 0 25 0 25 v operating temperature storage temperature (note 1) t op t st 0 -20 +50 +70 -20 -30 +70 (note 3) +80 c humidity: operating (@40c) non-operating (@40c) - - - - 85% 95% - - 85% 95% rh (note 2) rh (note 2) notes: 1: tested to 100 hrs. 2: refers to non-condensing conditions. 3. it is not recommended to operate ccf lamp below 0 c. 4.0 electrical characteristics v dd =5 0.25v;t a =25c item symbol test condition min. typ. max. unit input ?high? voltage v ih - 0.8v dd - v dd v input ?low? voltage v il - v ss - 0.2v dd v output ?high? voltage v oh i oh =0.205ma 2.2 - - v output ?low? voltage v ol i ol =1.2ma - - 0.8 v power supply current i ee v ee =-15v - 7.0 - ma power supply current i dd v dd =5.0v - 30.0 - ma 8 2
7.0 power supply v v v v v v v d d o r s s e e e e e e l c d + 5 v v v v v v d d o r s s e e l c d + 5 v n t n n t n w i t h o n - b o a r d n e g a t i v e v o l t a g e g e n e r a t o r v v v d d s s e e l c d + 5 v n t n w i t h t e m p e r a t u r e c o m p e n s a t i o n v v d d s s l c d + 5 v n t n w i t h o n - b o a r d n e g a t i v e v o l t a g e g e n e r a t o r a n d t e m p e r a t u r e c o m p e n s a t i o n v = 1 0 k - 2 0 k o h m r sheet 3 of 8 dwg. no. LM4229 rev. c 5.0 recommended lc drive voltage (v dd -v o ) v dd =5.0 0.25v temperature ntn ntn-h t a = -20c - 24.3 t a = 0c 21.0 21.0 t a = 25c 18.5 18.5 t a = 50c 16.8 16.8 t a = 70c - 15.7 6.0 backlight specifications: t a =20c ,60%rh,darkroom. item symbol typ. max. unit led lamp input voltage v led 5.0 6.0 vrms led input current i led 660 825 ma build-in current limit resistor r1 - - ohms, w recommended external current limit resistor r2 1 ohms, 1w - ohms, w number of led nodes n 110 - - v led - v led + r1 r2 n 1 i led
sheet of dwg. no. LM4229 rev. c 8.0 interface description pin no. symbol i/o function 1 v ss - ground (0v) 2 v dd - logic supply voltage (+5v) 3 v 0 - lc drive voltage for contrast adjustment 4 c/d i wr="l"?c/d="h": command write c/d="l": data write rd="l"?c/d="h": status read c/d="l": data read 5 rd i data read active low 6 wr i data write active low 7 db0 i/o bi-directional data bus line 0 8 db1 i/o bi-directional data bus line 1 9 db2 i/o bi-directional data bus line 2 10 db3 i/o bi-directional data bus line 3 11 db4 i/o bi-directional data bus line 4 12 db5 i/o bi-directional data bus line 5 13 db6 i/o bi-directional data bus line 6 14 db7 i/o bi-directional data bus line 7 15 ce i chip enable active low 16 reset i chip reset active low 17 v ee i(o) negative voltage input for lc drive (negative voltage output for models with on-board negative voltage generator) 18 md2 i mode selection (see below) 19 fs1 i terminals for selection of font size 20 halt - halt function (h = normal, l = stop oscillation) bl1 v led+ - anode (+): led backlight input voltage bl2 v led- - cathode (-): led backlight input voltage 8 4 9.0 block diagram: l c d p a n e l 8 0 c o m b l 1 r e s e t c e 5 3 2 1 3 4 4 4 4 8 w r r d c / d m d 2 f s 1 v v v v o d d e e s s d b 0 ~ d b 7 b l 2 c o m t o l s i b a c k l i g h t d r i v e v o l t a g e c i r c u i t t 6 9 6 3 c c o l 8 k r a m c o l c o l 8 0 8 0 8 0 4 8 8
sheet of dwg. no. LM4229 rev. c 10.0 timing characteristics item symbol min. typ. max. unit c/d set up time t cds 100 - - ns c/d hold time t cdh 10 - - ns ce, rd, wr pulse width t ds, t rd , t wr 80 - - ns data setup time t ds 80 - - ns data hold time t dh 40 - - ns access time t acc - - 150 ns output hold time t oh 10 - 50 ns 8 5 11.0 voltage sequencing always observe the following power supply on/off sequence. failure to so may cause latch up of cmos lsi circuits or dc induced damage to lc panel.
sheet of dwg. no. LM4229 rev. c 12.0 optical characteristics item symbol test condition min. typ. max. unit contrast ratio k ?=20 q =0 4 - - - viewing angle ?2-?1 q q =0 k > 1.4 ?=20 k=1.4 40 30 - - - - deg. deg. response time rise fall t r t f ?=20 q =0 ?=20 q =0 - - 150 150 250 250 ms ms 8 6 1.4 ?1 ?2 ntn, ntn-h: ?1 < 0 < ?2 tn, tn-h: ?1 < 20 < ?2 viewing angle contrast ratio brightness b2 b1 driving voltage selected dot non-selected dot x x' ?2 ?1 y y' brightness of non-selected dots brightness of selected dots k = definition of contrast ratio (k) contrast versus viewing angle definition of angles ? and 100% 90% 10% tr tf brightness selected non-selected non-selected definition of optical response q q q q
sheet of dwg. no. LM4229 rev. c 14.0 part number description for available options LM4229 ? ? 128g240 ? ? ? ? ? polarizer type b = transflective: light background with led backlight e = transmissive: dark background with led backlight ? ? backlight color g = yellow-green (standard) ? ? fluid type and power supply d = ntn with +5vdc and external negative voltage operation s = ntn with +5vdc operation (on-board negative voltage generation) h = ntn-h with +5vdc and external negative voltage operation w = wide temperture range: on-board negative voltage generator ? ? fluid type n = ntn, ntn-h ? ? color for ntn fluid b = blue background (available for e polarizer type only) g = gray background (available for b polarizers types only) y = yellow background (available for b polarizers types only) 8 8
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