LP141X7 liquid crystal display product general specification ver 0. 3 aug 25 , 2000 page 1 /6 1. general description the LP141X7 is a color active matrix liquid crystal display with an integral cold cathode fluorescent lamp(ccf l ) backlight system. the matrix employs a - si thin film transistor as the active element. it is a transmis s ive type displa y operating in the normally white mode. this tft - lcd has a 1 4 . 1 inch es diagonally measured active display area with xga resolution(768 vertical by 1024 horizontal pixel array). each pixel is divided into red, green and blue sub - pixels or dots which are a rranged in vertical stripes. gray scale or the brightness of the sub - pixel color is determined with a 6 - bit gray scale signal for each dot, thus, presenting a palette of more than 262,144 colors. the LP141X7 has been designed to apply the interface metho d that enables low power, high speed , low emi. flat link must be used as a lvds(low voltage differential signaling) chip. the LP141X7 is intended to support applications where thin thickness, low power are critical factors and graphic displays are importa nt. in combination with the vertical arrangement of the sub - pixels, the LP141X7 characteristics provide an excellent flat panel display for office automation products such as notebook pc. general features active screen size 1 4 . 1 inches(3 5.814 cm) diagonal outline dimensions 29 8.5 (h) 2 27 (v) 5.3 (d) mm (typ . ) pixel pitch 0.2 79 mm 0.2 79 mm pixel format 1024 horiz. b y 768 vert. pixels rgb stripe arrangement color depth 6 - bit, 262,144 colors luminance,white 1 5 0 cd/m 2 ( t yp . ) power consumption t otal 4.67 watt( t yp . ) weight 427.5 g ( t yp . ) display operating mo de t ransmissive mode, normally white surface treatments h ard coating ( 3h ) , a nti - glare treatment of the front polarizer column driver circuit row driver circuit tft - lcd (1024 768) timing control block power block flatlink interface backlight ass?y cn1 cn 2 ( datasheet : )
LP141X7 liquid crystal display product general specification ver 0. 3 aug 25 , 2000 page 2 /6 2 . electrical specifications 2 - 1. electrical characteristics the LP141X7 requires t wo power inputs. one is employed to power the lcd electronics and to drive the tft array and liquid crystal. the second input which powers the ccfl, is typically generated by an inverter. the inverter is an external unit to the lcd. table 1 electrical ch aracteristics: parameter symbol values units notes min. typ. max. module: power supply input voltage power supply input current differential impedance power consumption rush current duration of rush current lamp operating voltage operating current established starting voltage at 25 at 0 operating frequency discharge stabilization time power consumption life time v cc i cc z m p c i rush t rush v l i l v s f l t s p l 3.0 - 90 - - - 680(6ma) 3.0 - - 4 5 - 10 ,000 3.3 0. 315 100 1.04 1.0 - 725(5ma) 5.0 - - 58 3.63 3.6 0. 370 110 1.22 1.5 30 875(3ma) 6.0 1170 1450 80 3 4.08 - vdc a ohm w a ms v rms m a rms v rms v rms k hz minutes w h ou rs 1 2 1 3 4 5 6 7 8 6ma note)the design of the inverter must have specifications for the lamp in lcd assembly. the performance of the lamp in lcm,for example life time or brightness,is extremely influenced by the characteristics of the dc - ac inverter.so all the parameters of an inverter should be carefully designed so as not to produce too much leakage current from high - voltage output of the inverter. when you design or order the inverter,please make sure unwanted lighting caused by the mismatch of the lamp and the inverter(no ligh ting,flicker,etc) never occurs.when you confirm it,the lcd assembly should be operated in the same condition as installed in your instrument. notes: 1 . the specified current and power consumption are under the vcc = 3.3 v , 25 , fv = 60hz condition whereas full black pattern is displayed and fv is the frame frequency. 2. this impedance value is needed to proper display and measured from lvds tx to the mating connector. 3. the variance of the voltag e is 10%. 4. the voltage above v s sho uld b e applied to the lamps for more than 1second for start - up. otherwise,the lamps may not be turned on. 5. the output of the inverter must have symmetrical(negative and positive) voltage waveform and s ymmetrical current waveform.(unsymmetrical ratio is less than 10%) please do not use the inverter which has unsymmetrical voltage and unsymmetrical current and spike wave. lamp frequency may produce interference with horizontal synchronous frequency and as a result this may cause beat on the display.therefore lamp frequency shall be as away as possible from the horizontal synchronous frequency and from its harmonics in order to prevent interference. 6.let ? s define the brightness of the lamp after being lighted for 5 minutes as 100%. t s is the time required for the brightness of the center of the lamp to be not less than 95%. 7 . the lamp power consumption shown above does not include loss of external invert er. 8 . the life time is determined as the time at which brightness of lamp is 50% compare d to that of initial value at the typical lamp current on condition of continuous operating at 25 2 .
LP141X7 liquid crystal display product general specification ver 0. 3 aug 25 , 2000 page 3 /6 2 - 2. interface connections this lcd employs two interfa ce connections, a 20 pin connector is used for the module electronics and the other connector is used for the integral backlight system. the electronics interface connector is a model gt122 - 20p - h13r manufactured by lg cable . the pin configuration for the connector is shown in the table below. table 2 module connector pin configuration (lvds) [cn1] pin symbol description notes 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 vcc vcc gnd gnd a 0 m a0p gnd a1m a1p gnd a2m a2p gnd clkm clkp gnd nc nc gnd gnd power (3.3v) power (3.3v) ground ground differen tial signal differen tial signal ground differen tial signal differen tial signal ground differen tial signal differen tial signal ground differen tial signal differen tial signal ground no connection no connection ground ground 1. interface chips 1.1 lcd : kz4e038c12cfp (thine) (thc63lvdf64a core + timing controller) 1.2 system : thc63lvdm63a(thine) * pin to pin compatible with ti lvds 2. connector 2.1 lcd : gt122 - 20p - h13 r (lg c able ) 2.2 mating : fi - web21p - hf (jae) or compatible 2.3 connector pin arrangement viewing on display side the backlight interface connector is a model bhsr - 02vs - 1, manufactured by jst. the mating connector part number is sm02b - bhss - 1 or equivalent. the pin configuration for the connector is shown in the table below. table 3 backlight connector pin configuration pin symbol description notes 1 2 hv lv power supply for lamp (high voltage side) power supply for lamp (low volta ge side) 1 1 notes: 1. the high voltage side terminal is colored pink. the low voltage side terminal is white. 1 ? 20 cn1 cn2
LP141X7 liquid crystal display product general specification ver 0. 3 aug 25 , 2000 page 4 /6 < front view > note) 1.general tolerance is 0.5mm. 2.the lcd depth of user connector area is max 5.8mm. 5
LP141X7 liquid crystal display product general specification ver 0. 3 aug 25 , 2000 page 5 /6 < rear view > gt122 - 20p - h13
LP141X7 liquid crystal display product general specification ver 0. 3 aug 25 , 2000 page 6 /6 3 .precautions the lcd products listed on this documents are not suitable for use of military,industry,medical etc. system. if customers intend to use these lcd products for above application, please contact ours sales people in advance.
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