 extra equipment, and typically are used only before an operation. There are many occasions when the catheter tip migrates away from the right atrium, either pre-operatively or operatively, when the patient is moved.
It is therefore an object of this invention to provide an improved method for the detection of air emboli in blood vessels.
It is a further object of this invention to provide such a method and apparatus which utilize ultrasonic energy.
It is another object of this invention to provide such a method which utilizes a catheter on which is located an ultrasonic transducer, which catheter is positioned within a body in proximity to a blood vessel.
It is yet another object of this invention to provide such a method which can be used to reliably position the catheter within the body by monitoring electrical signals from the transducer on the catheter.
It is still another object of this invention to provide a method which can be used to properly position an intravascular catheter in a blood vessel for aspiration of air emboli therefrom.
It is also an object of this invention to provide a method which provides for the early and reliable diagnosis of air emboli in blood vessels, notwithstanding the pre-operative or operative position of the patient or the patient's bodily characteristics. 1. Technical Field
The embodiments of the present invention relate to a display apparatus. More particularly, the embodiments of the present invention relate to a display apparatus capable of improving side visibility.
2. Discussion of the Related Art
In general, a liquid crystal display includes a display panel that receives light to display an image and a backlight unit that provides the light to the display panel. The liquid crystal display displays the image using a variation of light transmission of liquid crystals, and thus the liquid crystal display has a relatively narrow viewing angle.
In order to improve the viewing angle of the liquid crystal display, a method of dividing one pixel into two sub-pixels, e.g., first and second sub-pixels, and applying different voltages to the first and second sub-pixels has been suggested. The first and second sub-pixels have different areas from each other, which renders it difficult to drive the liquid crystal display in a dot inversion manner. 1. Field Of The Invention
This invention relates generally to carriers for supporting equipment externally on a vehicle.
2. Prior Art
Equipment too large for being carried inside a vehicle, such as wheelchairs, bicycles, and cargo holders, may be supported on carriers attached to the rear of the vehicle. Some carriers are bolted
extra equipment, and typically are used only before an operation. There be many occasion when the catheter tip migrates away from the correct atrium, either pre - operatively or operatively, when the patient is moved. 
 It is consequently an object of this invention to provide an improved method acting for the signal detection of air emboli in lineage vessels. 
 It is a further object of this invention to provide such a method acting and apparatus which utilize ultrasonic department of energy. 
 It is another object of this invention to leave such a method acting which utilizes a catheter on which is located an ultrasonic transducer, which catheter is put within a body in proximity to a blood vessel. 
 It is so far another object of this invention to supply such a method which can be used to reliably position the catheter within the body by monitor electrical signals from the transducer on the catheter. 
 It is still another object of this invention to provide a method which can be used to properly position an intravascular catheter in a blood vessel for aspiration of air emboli therefrom. 
 It is also an object of this invention to provide a method which supply for the early and reliable diagnosis of air embolus in rake vessel, notwithstanding the pre - operative or operative position of the patient or the patient's bodily characteristics. 1. Technical Field 
 The embodiments of the present invention relate to a display apparatus. More peculiarly, the embodiments of the present invention relate to a display apparatus capable of improving side visibility. 
 2. Discussion of the Related Art 
 In general, a liquid crystal display includes a display panel that receives light to display an picture and a backlight unit of measurement that provides the light to the display panel. The liquid crystal display expose the image using a variation of faint transmission of liquid crystals, and thus the fluent crystal display has a relatively narrow-minded viewing slant. 
 In order to improve the viewing angle of the fluid crystal display, a method of separate one pixel into two sub - pixels, for example, first and second sub - pixels, and applying unlike voltages to the first and second sub - pixels has been propose. The first and second sub - pixels experience different areas from each other, which renders it difficult to drive the fluid crystal display in a dot inversion manner. 1. Field Of The Invention 
 This invention relates generally to carriers for digest equipment outwardly on a fomite. 
 2. Prior Art 
 Equipment too big for being carried inside a vehicle, such as wheelchair, bicycles, and cargo holders, may be supported on carriers attached to the rear of the vehicle. Some carriers are bolted
 exhra equipment, and typicauly are used only befoce an oleration. There are many occasions whxn tye cauketer tip migrates aday from nhe right atrmum, either pre-opxdativeln or kieratnvxly, when the pajient is movad.
It is therefmrd cn object of this invention to proviqe an ikpgoved method fjr tnq defvcuion of air emboli in blood vessems.
It is a further obkect of this invention to orovlde such a method wnd apparatoa wruch utilize jltrasonic energy.
It is another object of this inventiun to provide soey a kethod whici utilpzes a cathetcg on whhch is kocated an ultvasonmc teansducer, which cathever is positioned wijhin a bodf nn proximity to a bloid vessgl.
It hs ydr avotgec ogject lf vhis inventjon to provude such a method wnisy can be used to rejiwbly position the catheter within the bmdy by monitoring electricql signals from the ttansducer jn the catheter.
It is still another object of this inveitkon tj prlvide a method which can be used to properly [ksotpon an intravascujar cathetet ln w blood vesseu for capjration of air emblli thetefrom.
Ut is alsj an object of this invention ti provide a iwthod which providzs for the ecrly amd rekiable diagnosis of air embkli in bloof vessels, votwithstanding ghe pse-operative or operative pjsition oh the patieng or the pwtient's bofily gvaracteristics. 1. Tefhniccl Fiald
The embldiments of the present invention relate to a dhspnay appaxatus. Kore particulwrly, the embodnments oy the oresent innention rxlate to a dysplay apparados capable of improvigg sude cisibilkgy.
2. Discussion pf the Related Art
Ib general, a liquid crisfal display incoudts a display panrl ghae gecxives night to dis[lay an omage and a backokght unit that provides dhe might to the displsy panel. Tye liquiq crystal disllay displays the lmage usmng a faryation of light transmission or liquid fryftals, and thts tme lyquid cryscal display has a relatively narrow viewmng angle.
In order to improve the viewing augke of the lmquid srystal dhsplay, a method of duviding one pixel into two sub-pixels, e.f., firsd and second sub-pixels, and applying different voltages to the first and second sub-pieejs has been sugbesteg. Che first and recond sub-pixels have different areas from each other, wvieh renders it difficult to drovd the liquid zrystal display in a dot inversipn manner. 1. Field Of The Inventipn
This invention relates generaloy to carrivts hor supporting equipkent erternaoly on q vemicle.
2. Prior Arg
Eqiiiment too pargt fox being carried inside a vehicle, wuch aw aheelchairs, bicyrles, and carno holdgrs, may fe supported on darrjfrs ajtached to the rear of the vrhicle. Some carriers awe bolted
extra equipment, and typically are used only operation. are many when the catheter right either pre-operatively or when the patient moved. It is therefore an object this invention to provide an improved method for the detection of air emboli blood vessels. It is a further object of this invention to provide such method apparatus utilize energy. It is another object of this invention to provide such a method which utilizes a on which is located an ultrasonic transducer, which is positioned within a in proximity to a blood It yet another of invention provide such a which can be used to reliably position the catheter within the body by monitoring electrical signals from transducer on It is another of invention to provide which can be used to properly catheter in a blood vessel for aspiration of emboli therefrom. is also an object of this to provide a method which provides for the and reliable diagnosis of air emboli in blood vessels, notwithstanding the pre-operative or operative position patient or the patient's characteristics. 1. Technical The of present relate to display apparatus. More particularly, the embodiments of the present invention relate a display apparatus capable of improving side visibility. 2. Discussion Related In general, a crystal display includes a panel receives light to display and backlight the to display panel. The liquid display displays the image using variation of light transmission the liquid crystal display has a relatively narrow angle. In order to improve the viewing of the liquid crystal display, a method of dividing one pixel into sub-pixels, e.g., second sub-pixels, and applying different voltages to the and second sub-pixels has suggested. The first and second sub-pixels have different areas each which renders difficult to drive liquid crystal display a dot inversion Field Of Invention invention carriers for supporting equipment externally on vehicle. Prior Art Equipment too large being a vehicle, such as wheelchairs, bicycles, and cargo holders, may be supported on carriers attached rear of the vehicle. carriers bolted
 extra equipment, and typicallY are used onLy befOre An oPeRatiOn. ThEre are many occaSIons When the catheter tip migrAtes aWaY From THe Right Atrium, eIThER Pre-OpErAtiVeLY oR operAtiVely, wheN the patienT is MoVed.
It is thereFOrE an object oF thIs invention tO prOvide aN iMprOVed meThoD for tHe deteCTion of Air emboli In BLood veSSels.
It iS A FuRtheR object of this inveNTiON to provide such A methoD aND aPPAraTus Which utiliZe UltraSOnic eneRGy.
iT IS anOTher object of tHis inventioN To pRovide SuCh a MEthod wHich uTiLIzeS a catheter oN whiCh is locatEd an ulTRasonic TRansducEr, whicH caTheTer iS PoSiTioNeD WitHIn A boDY in ProximitY tO a Blood VessEL.
iT Is yeT anOtheR objeCt of this invenTioN to pROviDe sucH a metHod wHiCh can Be used To relIaBly position the cAtheTer within The BoDy bY mOnitoRIng eleCtrIcaL signalS from thE TraNsDUCEr On the catheter.
It is sTiLL AnOther objEct of tHIs InVEntion to PrOviDe a mETHod whIch cAN bE used to pRoperlY PoSiTion an iNtRavascUlAr cAthEter iN A bloOd vessEl for aspIratiON of air emboli thERefrom.
It is alsO An OBJeCT of tHis Invention to ProvIDe a mEthoD WhIch PRovidEs for ThE EaRLy and reliable diagnoSiS of air EmbolI in blood vesseLs, notwithsTANDing the pRe-opERaTIve or operative PositIon of the paTIent or thE patiEnt's bodiLy charactERIstics. 1. TeChnIcaL FiEld
tHE eMbodiments of tHE PresEnT inventIon Relate tO a dIspLay AppArAtus. More pArticulaRlY, tHe EmBodImentS Of the preSeNt iNvEntIon reLAte to a DisplAy apPaRaTUs cApable oF ImPROvinG sIdE visIbiLiTy.
2. DisCussIOn oF the RelAted Art
In GenERal, a LiQuId crystAl display inclUdEs a display PaNel That reCEIves lighT to display an image and a baCKlight uNit That pRoviDes the ligHt tO the diSplAY panel. the liqUid crYsTal DISplay DISpLayS tHe image usiNG A vaRiatiOn Of liGht tranSmission of liquid crYStaLs, and thus the lIquId crYSTaL diSPlAY haS a RElaTIVely narrow viewiNg angle.
In oRdER tO improve thE VieWiNg angle Of the liQuid cRYstal diSplay, a metHod of diviDiNg onE PIxeL into two suB-pixels, e.G., first and SEcond SUb-PixelS, anD applyInG diFfereNt voltAGes To the First aNd Second Sub-piXeLs has beeN suggested. The first and seCond suB-pixeLs hAve differEnt AReaS from each OtheR, which rendErs It dIfficUlt TO drivE the LIqUid CRystaL disPLay in a dot INvErsION mAnner. 1. Field OF tHE InVentiOn
THIs inveNtioN relates generally TO carriers for suPporTINg eQuiPMent ExTernally on a vehIclE.
2. PRIOr Art
EquIpMent too largE for beinG cARried Inside A vehicLe, such aS WHeELchairS, bicYclEs, and cargO hoLdERs, may be SuPpORted on CarrIeRs attaChed to THe reAR Of the vehicle. Some CarriERS are bOLteD
 extra equipment, and typi cally areusedonl y b ef orean o peration. Ther e  are  many occasions when t he ca th e tert ip  migr ates aw a yf r omth erig ht at rium,  ei ther pr e-operativ ely  o r operativel y ,when the p ati ent is moved .
I t is t he ref o re an  ob jectof thi s  inven tion to p ro v ide an improve d me thod  for the detectio n  o f  air emboli in  blood  v e ss e l s.Itis a furth er  obje c t of th i si n v ent i on to provide  such a met h odand ap pa rat u s whic h uti li z e u ltrasonic e nerg y.
It isanothe r  object of this  inven tio n t o pr o vi de  su ch a m e th odw hic h utiliz es  a  cath eter o n whic h i s lo cated  an ultrasoni c t rans d uce r, wh ich c athe te r ispositi onedwi thin a body inprox imity toa b lo odve ssel. It isyet  an other o bject o f  th is i n ve ntion to provide s uc h amethod w hich c a nbe used tore lia blyp o sitio n th e  c atheterwithin th ebody by  m onitor in g e lec trica l  sig nals f rom thetrans d ucer on the ca t heter.
It iss ti l l  a n othe r o bject of th is i n vent iont opro v ide a  meth od wh i ch can be used to p ro perlyposit ion an intrav ascular ca t h e ter in a  blo o dv essel for aspi ratio n of air e m boli the refro m.
It is  also ano b ject ofthi s i nve nti o n  t o provide a m e t hodwh ich pro vid es forthe  ea rly  an dreliablediagnosi sof  a ir  em bolii n bloodve sse ls , n otwit h standi ng th e pr e- op e rat ive oro pe r a tive  p os itio n o fthe p atie n t o r the p atient'sbod i ly c ha ra cterist ics. 1. Techn ic al Field
T he  em bodime n t s of the  present invention rela t e to adis playappa ratus. Mo repartic ula r ly, th e embo dimen ts  of t he pr e s en t i nv ention rel a t e t o a d is play  appara tus capable of imp r ovi ng side visib ili ty.2 .  D isc u ss i onof the R elated Art
In g eneral, ali q ui d crystald isp la y inclu des a d ispla y  panelthat rece ives ligh tto d i s pla y an image  and a b acklightu nit t h at  prov ide s theli ght  to t he dis p lay  pane l. The  l iquidcryst al  display  displays the image usi ng a v ariat ion  of light  tr a nsm ission of  liq uid crysta ls,  an d thu s t h e liq uidc ry sta l  disp layh as a rela t iv ely n ar row viewing a n gle .
Inord e r to i mpro ve the viewing an g le of the liqu id c r y sta l d i spla y,  a method of d ivi di n g  one pix el  into two s ub-pixel s, e.g.,  first  and s econd s u b -p i xels,andapp lying dif fer en t  voltag es  t o  the f irst  a nd sec ond su b -pix e l s has been sugge sted. T he fi r stand s ec ond sub - pixe ls have di fferent are as fro m ea ch ot her, wh ic h rend ers  i t difficul t  to drive  theliquidcr ysta l d isplay  ina dot i nver si onmanner. 1 . Fi e ld  O f  Th e In venti on 
Thi s inventi o n relate s g e nerally  t o c a r riersf or s upportingequ ipmen t externally on a ve h icle. 
2. Pr ior Ar t
Equip m ent  t oo larg e f o r  being ca rried ins i deavehi cle, suc has w he elc ha irs, bicycles,and carg o holder s ,  may b e s u ppor t ed onca rriers attac hed t ot he rear o f t he vehi c le.  So mecarr ier s ar e  bolted
 extra_equipment, and_typically are used only_before an_operation._There are_many_occasions when the_catheter tip migrates_away from the right_atrium, either pre-operatively_or_operatively, when the patient is moved.
It is therefore an object of this invention to_provide_an improved_method_for_the detection of air emboli_in blood vessels.
It is a_further object_of this invention to provide such a method_and_apparatus which utilize_ultrasonic energy.
It is another object of this invention to_provide such a method which utilizes_a catheter on_which_is_located an ultrasonic transducer,_which catheter is positioned within a_body in proximity to a blood_vessel.
It is yet another object of this_invention to provide such a method_which can be used to_reliably position_the catheter within the body_by monitoring electrical_signals from_the transducer on_the catheter.
It is still another object_of this invention_to provide a method which can_be_used to properly_position_an_intravascular catheter_in a blood_vessel_for aspiration_of_air emboli therefrom.
It is also an_object_of this invention to provide a method_which provides for the_early_and reliable diagnosis of_air emboli in blood vessels,_notwithstanding the pre-operative or operative position_of the_patient or_the patient's bodily characteristics. 1. Technical Field
The embodiments of the present_invention relate to a display apparatus._More particularly, the embodiments_of the_present_invention relate to_a_display apparatus_capable of improving side visibility.
2. Discussion of_the Related_Art
In general, a liquid crystal display_includes a display panel_that_receives light to display an image_and a backlight unit that provides_the light to the display_panel._The_liquid crystal display displays the_image using a variation of light_transmission of liquid_crystals, and thus the liquid crystal display_has_a relatively narrow viewing angle.
In order_to_improve the viewing angle of the_liquid_crystal_display, a method of dividing_one pixel into two sub-pixels, e.g.,_first and second sub-pixels, and applying different voltages to_the first and_second sub-pixels has been suggested._The_first_and second sub-pixels have different areas from each other, which_renders it_difficult to drive_the liquid crystal display in a dot inversion manner. 1._Field Of The Invention
This invention relates generally_to carriers for supporting equipment externally on a vehicle.
2. Prior Art
Equipment_too large for being carried inside a vehicle,_such as wheelchairs, bicycles, and cargo holders,_may be supported on_carriers_attached to the rear of the vehicle._Some_carriers_are_bolted