 the sample into a voltage and storing the voltage across a storage capacitor, and finally, converting the stored voltage to an output current. FIG. 1 depicts a proposed current mode sample-and-hold circuit that converts a current into a voltage and back into a current again. This circuit, however, introduces errors in the conversion process and limits frequency to the performance of the operational amplifiers. Removing the operational amplifiers can enhance frequency response, but the sample-and-hold circuit would then have increased conversion inaccuracies and undesirable loading effects.
A current mode sample-and-hold circuit that converts an input current into a voltage and then converts the voltage into an output current is described by Hughes in U.S. Pat. No. 5,012,133. Hughes' invention consists of a collection of current conveyors, wherein a current conveyor is a three terminal device similar to a current mirror but having a low input impedance. Each current conveyor samples an input current and converts the sampled current to a voltage for storage. By providing a plurality of current conveyors, a current sample of a previous period may be added to a current sample of a later period. In Hughes' implementation, however, a bias current is added to the sampled current which must be subtracted. Furthermore, the input current acquisition is made in an open loop mode, and no buffering or amplification of the input current is provided.
Thus what is needed is a current mode sample-and-hold circuit for acquiring an input current in a closed loop mode, and directly converting that input current into a representative output current. 1. Field of the Invention
The present invention relates to a liquid crystal display device, and more particularly to a liquid crystal display device having a wide viewing angle characteristic and being capable of producing a high quality display.
2. Description of the Related Art
In recent years, liquid crystal displays (hereinafter, referred to as “LCDs”) have been widely used. Mainstream LCDs so far have been twisted nematic type LCDs in which nematic liquid crystal molecules having a positive dielectric anisotropy are twisted. However, this type of LCDs have a problem of excessive viewing angle dependence, which is caused by the orientation of liquid crystal molecules.
In order to alleviate the viewing angle dependence, alignment-divided vertical alignment type LCDs have been developed, and are now used increasingly widely.
For example, Japanese Patent No. 2947350 discloses an MVA (Multi-domain Vertical Alignment) type LCD, which is one kind of alignment
the sample into a voltage and storing the voltage across a repositing capacitor, and ultimately, converting the stored voltage to an output signal current. FIG. 1 depicts a nominate current modality sample - and - hold circuit that converts a stream into a voltage and back into a current again. This circuit, however, introduces error in the conversion process and limits frequency to the performance of the operational amplifiers. remove the operational amplifiers can enhance frequency response, but the sample distribution - and - hold circuit would then have increase conversion inaccuracies and undesirable load effects. 
 A current mode sample - and - hold circuit that convert an input current into a voltage and then converts the voltage into an end product current is described by Hughes in U.S. Pat. No. 5,012,133. Hughes' invention consists of a collection of current conveyors, wherein a current conveyor is a three terminal device similar to a current mirror but having a abject input impedance. Each current conveyer belt sample an stimulation current and converts the sampled current to a voltage for storage. By providing a battalion of current conveyors, a current sample of a previous period may be added to a current sample of a later period. In Hughes' implementation, however, a bias current is added to the sample current which must be subtract. Furthermore, the stimulation current acquisition is made in an open loop mood, and no buffering or amplification of the input current is provided. 
 therefore what is needed is a current modality sample - and - hold lap for acquiring an remark current in a closed cringle mode, and immediately converting that input current into a representative output stream. 1. Field of the Invention 
 The present invention relates to a liquid quartz glass display device, and more particularly to a liquid crystal display device having a wide viewing angle characteristic and being capable of producing a high quality display. 
 2. Description of the Related Art 
 In recent old age, liquid crystal display (hereinafter, referred to as “ LCDs ”) have been widely used. Mainstream LCDs so far have been wrench nematic type LCDs in which nematic liquid crystal molecules having a convinced insulator anisotropy are twisted. However, this type of LCDs have a problem of excessive viewing angle dependence, which is cause by the orientation of liquid crystal atom. 
 In order to alleviate the viewing angle dependence, conjunction - divided vertical alignment character LCDs have been developed, and are now used increasingly widely. 
 For example, Japanese Patent No. 2947350 discloses an MVA (Multi - domain Vertical Alignment) type LCD, which is one kind of alignment
 thf sample into a voltage xnd storing the voltagx acrosa a storxge capacitor, and finally, coiverring uke stored voltage to an outpun current. FIG. 1 depicts a proposed currskt mobe sample-and-hold circuit tvat converts a cjrxent into a voltage and back into a surrent ahain. This circoit, hpreved, introduces errors in the conversjon probess and limits ftequency to the performancf of the operational alplifiers. Rgjovybg the operagional amplifiers can gnhance frequency response, but tfe sakple-and-hole xirfoit would thxn havv increased conversiot inacciracies and uncesmraboe loading effects.
A cnrrent mode sample-anq-hold cirwunt that converts an ibpyt cutrent intu a xoluagx ahd thej cknverts ths voltage ibto an output curremt px described gy Hugref in U.S. Pat. No. 5,012,133. Hughes' invention consisus of a collection of currenr conveyors, wherein a current sonveyor is a three terminal device similar to a wurreit mixvjf bkt having a low input impedance. Each current sknfejor samples an iniut current and comvfryf the sampled curreuf fo a voltage for shorage. Fy prividing a plutality of current conveyors, a current scmpoe of a previous pzriod may be addgd to s current sample of a lcter psriod. In Huhhes' implsoentation, howevef, a bhas currtvt is added to thq sampled curxent whizh most be fubtracted. Furtmarmore, the input ckrrenj acquhsition is made in an open loop mode, and ip buffering pr amilificatijn of the input cuwrent is provibed.
Thus chat ir needed ia a curcent mode saiple-and-hold chtcuit for acqniring an inpyt cyrrent kv a closed lool mode, anb dirwctly converting tmat ivlut current inti a representative ougpue burcent. 1. Xield of the Invdntkpn
The presenu ikvevtiom relates to a liquig crgstal display devive, and morg particujarly to a liauid crystal displwy detice heving s wyde viewing angle characteristjc and belng capable of [rodmcind a high qbality display.
2. Description of the Relatev Art
In recent years, liwuid crystal displais (mereinafter, ceferrqd to as “NCDs”) have been widelt used. Mainstream LCDs so far have beeh twisded nfmatic type LCDs in which nematic liquid crystal molecules having a posituve dixlqctric anisktroly arv tcisced. Howqver, vhis type of LCDs have a problem of excessive vixwing angla bependence, which is caused by tfe orientatiov of liquid crystal moledules.
In prder to alleviate the viewing sngle dependence, alignmekt-divided vertjcal alignoent type LCDs havr been deveooped, abd ave now used inzresslngly widepy.
Foc erample, Japanese Patent No. 2947350 disclowes an MGA (Multi-domain Vxrtical Aligkmtnt) typg LCD, whych is one kind kf amlgnmevt
the sample into a voltage and storing across storage capacitor, finally, converting the current. 1 depicts a current mode sample-and-hold that converts a current into a and back into a current again. This circuit, however, introduces errors in the process and limits frequency to the performance of the operational amplifiers. Removing the amplifiers enhance response, the sample-and-hold circuit would then have increased conversion inaccuracies and undesirable loading effects. A current mode circuit that converts an input current into a and then converts the into an output current is by in U.S. No. Hughes' consists of a of current conveyors, wherein a current conveyor is a three terminal device similar to a current mirror having a impedance. Each conveyor an current and converts current to a voltage for storage. plurality of current conveyors, a current sample of previous period be added to a current sample a later period. In Hughes' implementation, however, a current is added to the sampled current which must be subtracted. Furthermore, the input current made in an open mode, and no or of input is provided. what is needed is a current mode sample-and-hold circuit for acquiring input current in a closed loop mode, and directly converting current a representative output 1. Field of the The invention relates to a display and a crystal device having a wide angle characteristic and being capable producing a high quality Related Art In recent years, liquid crystal displays referred to as “LCDs”) have been widely Mainstream LCDs so far have been twisted nematic type LCDs in which liquid crystal a positive dielectric anisotropy are twisted. However, this of LCDs have a of excessive viewing angle dependence, which is caused by orientation liquid crystal In order to the viewing angle alignment-divided vertical alignment have been and now For example, Japanese Patent No. 2947350 an (Multi-domain Vertical Alignment) type LCD, is of alignment
 the sample into a voltage and sToring the vOltagE acRosS a StorAge cApacitor, and finALly, cOnverting the stored voltAge to An OUtpuT CuRrent. fIG. 1 depiCTs A PRopOsEd CurReNT mOde saMplE-and-holD circuit thAt cOnVerts a currenT InTo a voltage And Back into a curRenT again. thIs cIRcuit, HowEver, iNtroduCEs erroRs in the coNvERsion pROcess anD LImIts fRequency to the perfORmANce of the operatIonal aMpLIfIERs. REmoVing the opeRaTionaL AmplifiERs CAN EnhANce frequency rEsponse, but tHE saMple-anD-hOld CIrcuit Would ThEN haVe increased ConvErsion inaCcuracIEs and unDEsirablE loadiNg eFfeCts.
A CUrReNt mOdE SamPLe-And-HOld Circuit tHaT cOnverTs an INPUT curRenT intO a volTage and then coNveRts tHE voLtage Into aN outPuT currEnt is dEscriBeD by Hughes in U.S. PaT. No. 5,012,133. HUghes' inveNtiOn ConSiSts of A CollecTioN of Current ConveyoRS, whErEIN A cUrrent conveyor is a tHrEE TeRminal deVice siMIlAr TO a currenT mIrrOr buT HAving A low INpUt impedaNce. EacH CuRrEnt convEyOr sampLeS an InpUt curREnt aNd convErts the sAmpleD Current to a voltAGe for storage. BY PrOVIdINg a pLurAlity of currEnt cONveyOrs, a CUrRenT SamplE of a pReVIoUS period may be added to A cUrrent SamplE of a later periOd. In Hughes' IMPLementatIon, hOWeVEr, a bias current Is addEd to the samPLed curreNt whiCh must be SubtracteD. fUrthermoRe, tHe iNpuT cuRREnT acquisition iS MAde iN aN open loOp mOde, and nO buFfeRinG or AmPlificatiOn of the iNpUt CuRrEnt Is proVIded.
Thus WhAt iS nEedEd is a CUrrent Mode sAmplE-aNd-HOld Circuit FOr ACQuirInG aN inpUt cUrRent iN a clOSed Loop modE, and direcTly COnveRtInG that inPut current intO a RepresentaTiVe oUtput cURRent. 1. FielD of the Invention
The preseNT inventIon RelatEs to A liquid crYstAl dispLay DEvice, aNd more PartiCuLarLY To a liQUId CryStAl display dEVIce HavinG a Wide Viewing Angle characteristiC And Being capable oF prOducING a HigH QuALitY dISplAY.
2. description of thE Related ArT
IN ReCent years, lIQuiD cRystal dIsplays (HereiNAfter, reFerred to aS “LCDs”) have BeEn wiDELy uSed. MainstrEam LCDs sO far have bEEn twiSTeD nemaTic Type LCds In wHich nEmatic LIquId cryStal moLeCules hAving A pOsitive dIelectric anisotropy are tWisted. howevEr, tHis type of lCDS HavE a problem Of exCessive vieWinG anGle dePenDEnce, wHich IS cAusED by thE oriENtation of LIqUid CRYsTal moleculeS.
iN OrdEr to aLleVIate thE vieWing angle dependenCE, alignment-diviDed vERTicAl aLIgnmEnT type LCDs have bEen DeVELoped, and ArE now used incReasinglY wIDely.
FOr examPle, JapAnese PaTENt nO. 2947350 disclOses An MvA (Multi-doMaiN VERtical ALiGnMEnt) typE LCD, WhIch is oNe kind OF aliGNMent
 the sample into a voltage  and stori ng th e v olt ag e ac ross  a storage cap a cito r, and finally, conver tingth e  sto r ed  volt age toa no u tpu tcu rre nt .  F IG. 1  de picts a  proposedcur re nt mode samp l e- and-hold c irc uit that con ver ts a c ur ren t  into  avolta ge and back i nto a cur re n t agai n . Thisc i rc uit,  however, introdu c es errors in theconver si o np r oce ssand limits  f reque n cy to t h ep e r for m ance of the o perationala mpl ifiers .Rem o ving t he op er a tio nal amplifi erscan enhan ce fre q uency r e sponse,  but t hesam ple- a nd -h old  c i rcu i twou l d t hen have  i nc rease d co n v e r sion  in accu racie s and undesir abl e lo a din g eff ects. 
A c ur rentmode s ample -a nd-hold circuit  tha t convert s a ninp ut  curr e nt int o a  vo ltage a nd then con ve r t s  t he voltage into an  o u t pu t curren t is d e sc ri b ed by Hu gh esin U . S . Pat . No .  5 ,012,133 . Hugh e s'  i nventio nconsis ts  of  acolle c tion  of cu rrent co nveyo r s, wherein a c u rrent conveyo r  i s at hree  te rminal devi ce s i mila r to acur r ent m irror  b u th aving a low input i mp edance . Eac h current con veyor samp l e s  an inpu t cu r re n t and converts  thesampled cu r rent toa vol tage for  storage. B y provid ing  aplu ral i t yof current co n v eyor s,  a curr ent  sample  of  apre vio us  period m ay be ad de dto  a  cu rrent sample o fa l at erperio d . In H ughes ' im pl em e nta tion, h o we v e r, a  b ia s cu rre nt  is a dded tothe sam pled curr ent whic hmu st be s ubtracted. Fu rt hermore, t he  in put cu r r ent acqu isition is made in an o p en loop  mo de, a nd n o bufferi ngor amp lif i cation  of th e inp ut  cu r r ent i s pr ovi de d.
Thus wh a t  is  need ed  isa curre nt mode sample-and - hol d circuit for  ac quir i n gani np u t c ur r ent i n a closed loop  mode, and  d i re ctly conve r tin gthat in put cur renti nto a r epresenta tive outp ut  cur r e nt.  1. Fieldof the I nventionT he pr e se nt in ven tion r el ate s toa liqu i d c rysta l disp la y devi ce, a nd  more pa rticularly to a liquidcrysta l dis pla y devicehav i nga wide vi ewin g angle ch ara cte risti c a n d bei ng c a pa ble of pr oduc i ng a high qu ali t y  d isplay.
2.D e s cri ption  of the Re late d Art
In recent y e ars, liquid cr ysta l dis pla y s (h er einafter, refe rre dt o  as “LCD s” ) have been  widelyus e d. Ma instre am LCD s so fa r ha v e been  twi ste d nematic  ty pe LCDs in  w hi c h nema ticli quid c rystal mole c u les having a pos itive d ielec t ric  anis ot ropy ar e  twi sted. Howe ver, this t ype of  LCD s hav e a pro bl em ofexc es sive viewi n g angle d epend ence, w hi ch i s c ausedby t h e  orie ntat io n o f liquidc r ys t al  m o lec ules .
Inor derto allevi a te the v iew i ng angl edep e n dence, al i g nment-divi ded  vert i c al alignme n t ty p eL CDs h ave be en dev eloped, and  a re nowuse d increasin gly widel y .
F or  exa mple, Ja pa nese  P ate nt  No. 2947350 di sclosesan MVA ( M u lti-do mai n  Ver t ical A li gnment) type  LCD,  w h ich iso n e k ind ofa lig nme nt
 the_sample into_a voltage and storing_the voltage_across_a storage_capacitor,_and finally, converting_the stored voltage_to an output current._FIG. 1 depicts_a_proposed current mode sample-and-hold circuit that converts a current into a voltage and back_into_a current_again._This_circuit, however, introduces errors in_the conversion process and limits_frequency to_the performance of the operational amplifiers. Removing the_operational_amplifiers can enhance_frequency response, but the sample-and-hold circuit would then have_increased conversion inaccuracies and undesirable loading_effects.
A current mode_sample-and-hold_circuit_that converts an input_current into a voltage and then_converts the voltage into an output_current is described by Hughes in U.S._Pat. No. 5,012,133. Hughes' invention consists_of a collection of current_conveyors, wherein_a current conveyor is a_three terminal device_similar to_a current mirror_but having a low input impedance._Each current conveyor_samples an input current and converts_the_sampled current to_a_voltage_for storage._By providing a_plurality_of current_conveyors,_a current sample of a previous_period_may be added to a current sample_of a later period._In_Hughes' implementation, however, a_bias current is added to_the sampled current which must be_subtracted. Furthermore,_the input_current acquisition is made in an open loop mode, and no_buffering or amplification of the input_current is provided.
Thus what_is needed_is_a current mode_sample-and-hold_circuit for_acquiring an input current in a closed_loop mode,_and directly converting that input current_into a representative output_current._1. Field of the Invention
The present_invention relates to a liquid crystal_display device, and more particularly_to_a_liquid crystal display device having_a wide viewing angle characteristic and_being capable of_producing a high quality display.
2. Description of_the_Related Art
In recent years, liquid crystal_displays_(hereinafter, referred to as “LCDs”) have_been_widely_used. Mainstream LCDs so far_have been twisted nematic type LCDs_in which nematic liquid crystal molecules having a positive_dielectric anisotropy are_twisted. However, this type of_LCDs_have_a problem of excessive viewing angle dependence, which is caused_by the_orientation of liquid_crystal molecules.
In order to alleviate the viewing angle dependence, alignment-divided_vertical alignment type LCDs have been developed,_and are now used increasingly widely.
For example, Japanese Patent No. 2947350_discloses an MVA (Multi-domain Vertical Alignment) type LCD,_which is one kind of alignment