 are displayed on a large PDP, both of the above-noted conditions are met, thereby causing a lot of flickers. Therefore, when the PDP is driven at 50 Hz using a minimum incremental arrangement or a minimum decrement arrangement which is a general arrangement of subfields used for the PDP, a lot of flickers are generated.
Since the screen cannot be controlled in the above-noted two conditions that cause flicker, a method for controlling the frequency is used to reduce the flicker.
Korean published application No. 2000-16955 discloses a conventional method for reducing flicker generation by control of the frequency. In order to reduce large screen flickers generated when inputting 50 Hz video signals to drive a PDP, subfields in a single frame are divided into two groups G1 and G2, and the subfields of the groups except the least significant bit (LSB) subfield are established to have the same configuration. In other words, luminance weights are similarly allocated to the subfields of the respective groups, as shown in FIG. 1. The above-described method is much more effective than the conventional subfield arrangement, such as the minimum incremental arrangement or the minimum decrement arrangement.
Referring to FIG. 1, a total interval of a single frame is 20 ms, and the intervals of the respective groups G1 and G2 are fixed as 10 ms. Two suspension intervals are provided, one of which is positioned at the end of the frame, that is, at the end of the second group G2, and the other of which is positioned between the two groups G1 and G2, that is, at the end of the first group G1.
FIG. 2, for example, shows a partial realization of low gray by using a conventional subfield arrangement.
As shown, in the case of displaying low gray such as a low gray of from 0 to 11 by using a conventional subfield arrangement, a time difference between the subfields corresponding to the LSB and the LSB+1 is several ms.
For example, in the case of low gray 3, the lowest subfield SF1 of the first group G1 is turned on, and the lowest subfield SF1 of the second group G2 is turned on. In this instance, the subfield of the first group G1 is a subfield of the LSB, the subfield of the second group G2 is a subfield of the LSB+1, and the time
are displayed on a large PDP, both of the above - noted conditions are converge, thereby cause a lot of flickers. Therefore, when the PDP is drive at 50 Hz using a minimum incremental agreement or a minimum decrement arrangement which is a cosmopolitan musical arrangement of subfields used for the PDP, a draw of flickers are generated. 
 Since the filmdom cannot be see in the above - noted two conditions that cause flicker, a method for control the frequency is used to reduce the flicker. 
 Korean publish application No. 2000 - 16955 discloses a ceremonious method for reduce flicker generation by control of the frequency. In order to deoxidize large screen flickers generated when inputting 50 Hz video signal to drive a PDP, subfields in a single frame are divided into two groups G1 and G2, and the subfields of the groups except the least significant bit (LSB) subfield are established to have the like shape. In other words, luminance weight are similarly allocated to the subfields of the respective groups, as shown in FIG. 1. The above - trace method is much more effective than the conventional subfield arrangement, such as the minimal incremental arrangement or the minimum decrement arrangement. 
 Referring to FIG. 1, a total interval of a single frame is 20 ms, and the intervals of the respective groups G1 and G2 are fixed as 10 ms. Two pause intervals are leave, one of which is positioned at the end of the frame, that is, at the end of the second group G2, and the other of which is position between the two groups G1 and G2, that is, at the end of the first group G1. 
 FIG. 2, for case, shows a partial realization of low gray by use a conventional subfield placement. 
 As shown, in the case of expose low grey such as a low grey of from 0 to 11 by using a ceremonious subfield arrangement, a time difference between the subfields represent to the LSB and the LSB+1 is several ms. 
 For exercise, in the case of low gray 3, the lowest subfield SF1 of the first group G1 is turned on, and the lowest subfield SF1 of the second group G2 is turned on. In this instance, the subfield of the inaugural group G1 is a subfield of the LSB, the subfield of the second group G2 is a subfield of the LSB+1, and the time
 arf displayed on a large PAP, both of the cvove-noved consitions xre met, thereby causing a lov of flicjers. Therefore, when thd PDP is friven ar 50 He using a minimum incremekcal advangekxnt or a minimuk decremend arrangement fhkck is a general arrangement of subfiejds usec vor the PDP, a jot ps fljbktrs are generated.
Since the screen cannot be controllec in the above-noted two cojditlons that cause fllcker, a metyod sir controllivg the frequency is usgd to reduce the flicker.
Korean pjblisked applicajnin Jm. 2000-16955 disclosew a cjnventional method fmr reduving flicker gcneravion by control of the frxquency. In order to teduce larce screen flickers teberatgd whan ivputginf 50 Ha videl smgnals to ddive a PDP, wubfields in a singke drame are divjded igtj two groups G1 and G2, and the subfields mf fhe groups except the lwast significant bit (PSB) subfiqld are established to have the same configuratiot. In kghex wordr, lkminance weights are similarly allocated to trs xunfields of the rcspective groups, ax dhprn in FIG. 1. Thg above-bssdribed method is mkch morg effextive thag thr conventional subfield arrqngement, suck aw the minimum incrzmental arraugemenj or tne minimum decrement arxangemsnt.
Referrinh to FIG. 1, x total interval of a single frame is 20 ms, and tre intervels oy the rerpecjive grjups G1 and G2 arc fixed as 10 ms. Two duspeusion intervals are provided, one of which is positioned at tne eng of the framc, that is, at thq end of the sgcond grobp G2, avd the othvr of whirh is positijned between dje two groupv G1 and D2, thqt iw, at thd end of the fitst group G1.
FIG. 2, for example, shows a pertixm realization oy oow gray by usimg x cjnnenvionaj subfield arsangdmevy.
As sfown, in the zase of displaying low gsay auch as a low gray on from 0 ti 11 by usyng a conventoonal subfield arrwngemxnt, a vime doffgrence between the subfields codrespondijg bo the LSB anq thc LSF+1 is severcl ms.
For example, in the case of low gray 3, the lowest subfiwld SF1 of the first nroup G1 is tnrned jn, and tha lowest subfield SF1 of the second grpup G2 is turned on. In this hnstajce, the subfield of the first group G1 is a subfield of the LSB, the subfieod of vhq second grkup B2 is d fbbfield of vhx LSB+1, and the timv
are displayed on a large PDP, both above-noted are met, causing a lot PDP driven at 50 using a minimum arrangement or a minimum decrement arrangement is a general arrangement of subfields used for the PDP, a lot of are generated. Since the screen cannot be controlled in the above-noted two conditions cause a for the frequency is used to reduce the flicker. Korean published application No. 2000-16955 discloses a conventional for reducing flicker generation by control of the In order to reduce screen flickers generated when inputting Hz signals to a subfields a single frame divided into two groups G1 and G2, and the subfields of the groups except the least significant (LSB) subfield to have same In words, luminance weights allocated to the subfields of the shown in FIG. 1. The above-described method is more effective the conventional subfield arrangement, such as minimum incremental arrangement or the minimum decrement arrangement. to FIG. 1, a total interval of a single frame is 20 ms, and the the respective groups G1 G2 are fixed 10 Two intervals provided, one which is positioned at the end of the frame, that is, the end of the second group G2, and the other is between the two G1 and G2, that at end of the first FIG. for partial of gray by using a subfield arrangement. As shown, in case of displaying low gray of from 0 to 11 by using conventional subfield arrangement, a time difference between subfields corresponding to the LSB and the LSB+1 is several ms. For in the low gray 3, the lowest subfield SF1 of first group G1 is on, and the lowest subfield SF1 of the second G2 turned on. this instance, the of the first G1 is a the LSB, subfield the is a subfield of the LSB+1, the
 are displayed on a large PDP, boTh of the aboVe-notEd cOndItIons Are mEt, thereby causiNG a loT of flickers. Therefore, whEn the pDp Is drIVeN at 50 Hz Using a mINiMUM inCrEmEntAl ARrAngemEnt Or a miniMum decremeNt aRrAngement whicH Is A general arRanGement of subfIelDs used FoR thE pDP, a lOt oF flicKers arE GeneraTed.
Since tHe SCreen cANnot be cONTrOlleD in the above-noted tWO cONditions that caUse fliCkER, a METhoD foR controlliNg The frEQuency iS UsED TO reDUce the flicker.
korean publiSHed ApplicAtIon nO. 2000-16955 disclOses a CoNVenTional methoD for Reducing fLicker GEneratiON by contRol of tHe fReqUencY. in OrDer To REduCE lArgE ScrEen flickErS gEneraTed wHEN INputTinG 50 Hz vIdeo sIgnals to drive A PDp, subFIelDs in a SinglE fraMe Are diVided iNto twO gRoups G1 and G2, and thE subFields of tHe gRoUps ExCept tHE least SigNifIcant biT (LSB) subFIelD aRE EStAblished to have the sAmE COnFiguratiOn. In otHEr WoRDs, luminaNcE weIghtS ARe simIlarLY aLlocated To the sUBfIeLds of thE rEspectIvE grOupS, as shOWn in fIG. 1. The Above-desCribeD Method is much moRE effective thaN ThE COnVEntiOnaL subfield arRangEMent, Such AS tHe mINimum IncreMeNTaL Arrangement or the minImUm decrEment Arrangement.
ReFerring to Fig. 1, A Total intErvaL Of A Single frame is 20 mS, and tHe intervalS Of the resPectiVe groups g1 and G2 are fIXEd as 10 ms. TwO suSpeNsiOn iNTErVals are providED, One oF wHich is pOsiTioned aT thE enD of The FrAme, that is, At the end Of ThE sEcOnd Group g2, And the otHeR of WhIch Is posITioned BetweEn thE tWo GRouPs G1 and G2, THaT IS, at tHe EnD of tHe fIrSt groUp G1.
Fig. 2, foR examplE, shows a paRtiAL reaLiZaTion of lOw gray by using A cOnventionaL sUbfIeld arRANgement.
AS shown, in the case of displaYIng low gRay Such aS a loW gray of frOm 0 tO 11 by usiNg a COnventIonal sUbfieLd ArrANGemenT, A TiMe dIfFerence betWEEn tHe subFiElds CorrespOnding to the LSB and tHE LSb+1 is several ms.
FOr eXampLE, In The CAsE Of lOw GRay 3, THE lowest subfield sF1 of the firSt GRoUp G1 is turneD On, aNd The loweSt subfiEld SF1 OF the secOnd group G2 Is turned oN. IN thiS INstAnce, the subField of tHe first grOUp G1 is A SuBfielD of The LSB, ThE suBfielD of the SEcoNd groUp G2 is a SuBfield Of the lSb+1, and the tIme
 are displayed on a largePDP, bothof th e a bov e- note d co nditions are m e t, t hereby causing a lot o f fli ck e rs.T he refor e, when th e PDP  i sdri ve n  a t 50Hzusing a  minimum i ncr em ental arrang e me nt or a mi nim um decrement  ar rangem en t w h ich i s a  gene ral ar r angeme nt of sub fi e lds us e d for t h e  P DP,a lot of flickers ar e  generated.
Si nce th es cr e e n c ann ot be cont ro lledi n the a b ov e - n ote d  two conditio ns that cau s e f licker ,a m e thod f or co nt r oll ing the fre quen cy is use d to r e duce th e  flicke r.
Kor ean  pu blis h ed  a ppl ic a tio n  N o.2 000 -16955 d is cl osesa co n v e n tion almeth od fo r reducing fl ick er g e ner ation  by c ontr ol  of t he fre quenc y.  In order to re duce  large sc ree nfli ck ers g e nerate d w hen  inputt ing 50H z v id e o si gnals to drive a P DP , su bfieldsin a s i ng le frame ar ediv ided i nto t wo g r ou ps G1 an d G2,a nd  t he subf ie lds of  t hegro ups e x cept  the l east sig nific a nt bit (LSB) s u bfield are es t ab l i sh e d to  ha ve the same  con f igur atio n .Ino therwords ,l um i nance weights are s im ilarly  allo cated to thesubfieldso f the resp ecti v eg roups, as show n inFIG. 1. Th e  above-d escri bed meth od is muc h more eff ect ive  th ant h econventionals u bfie ld  arrang eme nt, suc h a s t hemin im um increm ental ar ra ng em en t o r the minimumde cre me ntarran g ement. 
Refe rrin gto FIG . 1, at ot a l  int er va l of  asi nglefram e  is  20 ms,  and theint e rval sof  the re spective grou ps  G1 and G2  a refixeda s  10 ms.Two suspension interval s  are pr ovi ded,oneof whichispositi one d  at th e endof th efra m e , tha t is , a tthe end of t hesecon dgrou p G2, a nd the other of wh i chis positioned  be twee n th e t w og rou ps G1a n d G2, that is,at the end  o f  t he first g r oup  G 1.
FIG.  2, for  exam p le, sho ws a part ial reali za tion o f l ow gray by  using a  conventi o nal s u bf ieldarr angeme nt .
A s sho wn, in the  case  of di sp laying  lowgr ay suchas a low gray of from 0  to 11  by u sin g a conve nti o nal  subfield  arr angement,a t ime  diff ere n ce be twee n  t hes ubfie ldsc orrespond i ng  to t he  LSB and th e L SB+ 1 issev e ral ms .
Fo r example, in the case of low gr ay 3 , the  lo w estsu bfield SF1 ofthe  f i r st group  G 1 is turned  on, and  t h e low est su bfield  SF1 of t he second  gro upG2 is tur ned  o n . In th is  i n stance , th esubfie ld oft he f i r st group G1 is a  subf i e ld of the  LSB,  t he subf i eldof the sec ond group G 2 is a  sub field  of the  L SB+1,and  t he time
 are_displayed on_a large PDP, both_of the_above-noted_conditions are_met,_thereby causing a_lot of flickers._Therefore, when the PDP_is driven at_50_Hz using a minimum incremental arrangement or a minimum decrement arrangement which is a_general_arrangement of_subfields_used_for the PDP, a lot_of flickers are generated.
Since the_screen cannot_be controlled in the above-noted two conditions that_cause_flicker, a method_for controlling the frequency is used to reduce the_flicker.
Korean published application No. 2000-16955 discloses_a conventional method_for_reducing_flicker generation by control_of the frequency. In order to_reduce large screen flickers generated when_inputting 50 Hz video signals to drive_a PDP, subfields in a single_frame are divided into two_groups G1_and G2, and the subfields_of the groups_except the_least significant bit_(LSB) subfield are established to have_the same configuration._In other words, luminance weights are_similarly_allocated to the_subfields_of_the respective_groups, as shown_in_FIG. 1._The_above-described method is much more effective_than_the conventional subfield arrangement, such as the_minimum incremental arrangement or_the_minimum decrement arrangement.
Referring to_FIG. 1, a total interval_of a single frame is 20_ms, and_the intervals_of the respective groups G1 and G2 are fixed as 10_ms. Two suspension intervals are provided,_one of which is_positioned at_the_end of the_frame,_that is,_at the end of the second group_G2, and_the other of which is positioned_between the two groups_G1_and G2, that is, at the_end of the first group G1.
FIG._2, for example, shows a_partial_realization_of low gray by using_a conventional subfield arrangement.
As shown, in_the case of_displaying low gray such as a low_gray_of from 0 to 11 by_using_a conventional subfield arrangement, a time_difference_between_the subfields corresponding to the_LSB and the LSB+1 is several_ms.
For example, in the case of low gray 3,_the lowest subfield_SF1 of the first group_G1_is_turned on, and the lowest subfield SF1 of the second_group G2_is turned on._In this instance, the subfield of the first group G1_is a subfield of the LSB, the_subfield of the second group G2 is a subfield of the_LSB+1, and the time