 71 to 7n corresponding to the reset target anode line indicated by the reset control signal and turns off the other switches. The operation of a reset driving method based on the above configuration will now be described.
An operation flow will be explained as an example hereinbelow where after the cathode line B1 is scanned and the EL devices E1,1 and E2,1 are allowed to emit the light, the scan is shifted to the cathode line B2 and the EL devices E2,2 and E3,2 are allowed to emit the light. For simplicity of explanation, the EL device which performs the light emission is shown by a diode symbol and the EL device which does not perform the light emission is shown by a capacitor symbol. The reverse bias voltage VB which is applied to the cathode lines B1 to Bm is set to the same voltage 10V as a power voltage of the apparatus.
First, in FIG. 5, the scan switch 51 is switched to the 0V position as a reference voltage and the cathode line B1 is scanned. The reverse bias voltage 10V as a predetermined voltage is applied to the other cathode lines B2 to Bm via the scan switches 52 to 5m.
The current sources 21 and 22 are connected to the anode lines A1 to A2 via the drive switches 61 and 62. The other anode lines A3 to An are connected to the ground potential 0V via the shunt switches 73 to 7n.
In case of FIG. 5, therefore, only the EL devices E1,1 and E2,1 are biased in the forward direction, the driving currents flow from the current sources 21 and 22 as shown by arrows, and only the EL devices E1,1 and E2,1 emit the light. In FIG. 5, each of the EL devices shown by hatched regions in the capacitors is charged to a polarity as shown in the diagram. The following reset control is performed just before the scan is shifted from the light emitting state shown in FIG. 5 to a state where the light emission of the EL devices E2,2 and E3,2 as shown in FIG. 8 is performed.
That is, before the scan target is shifted from the cathode line B1 in FIG. 5 to the cathode line B2 in FIG. 8, first, as shown in FIG. 6, all of the drive switches 61 to 6n are turned off, all of the scan switches 51 to 5m and all of the shunt switches 71 to
71 to 7n corresponding to the reset target anode line indicated by the reset restraint signal and turn off the other switches. The operation of a reset drive method based on the above configuration will nowadays be described. 
 An operation stream will be explained as an example hereinbelow where after the cathode tune B1 is scanned and the EL devices E1,1 and E2,1 are allow to emit the light, the scan is shifted to the cathode line B2 and the EL devices E2,2 and E3,2 are allowed to emit the luminosity. For simplicity of explanation, the EL device which performs the light discharge is shown by a diode symbol and the EL device which does not perform the light emission is show by a capacitor symbol. The reverse bias voltage VB which is applied to the cathode lines B1 to Bm is dress to the same voltage 10V as a power voltage of the apparatus. 
 First, in FIG. 5, the scan switch 51 is switched to the 0V position as a reference voltage and the cathode line B1 is scanned. The reverse bias voltage 10V as a predetermined voltage is apply to the other cathode lines B2 to Bm via the scan interchange 52 to 5 m. 
 The current sources 21 and 22 are connected to the anode lines A1 to A2 via the drive switch 61 and 62. The other anode lines A3 to An are connected to the ground likely 0V via the shunt switches 73 to 7n. 
 In case of FIG. 5, therefore, only the EL devices E1,1 and E2,1 are biased in the forward direction, the driving currents flow from the current sources 21 and 22 as show by arrow, and only the EL devices E1,1 and E2,1 emit the light. In FIG. 5, each of the EL devices indicate by hatched regions in the capacitors is charge to a mutual opposition as shown in the diagram. The following reset control is performed just before the scan is shift from the light emit state read in FIG. 5 to a state where the idle emission of the EL device E2,2 and E3,2 as shown in FIG. 8 is performed. 
 That is, before the scan aim is shifted from the cathode occupation B1 in FIG. 5 to the cathode line B2 in FIG. 8, first, as shown in FIG. 6, all of the drive switches 61 to 6n are turned off, all of the scan switches 51 to 5 m and all of the shunt switches 71 to
 71 tl 7n corresponding to the reset target auide liie indidated by the reset control signal anv tuens odf the other switches. Ghe operanion of a restt driving method based ok the wbovz ronfiguration wlll now be gescribed.
An oparxtnon flow will be explained as an exaiple hetelnbelow where wfteg ehe dathode line B1 is scanned and the SL devibes E1,1 and E2,1 are aklowed to emit the light, tje sfan is shifted to hhe cathode linq B2 and the EU devices T2,2 cnd E3,2 are amlowed to emit the light. For sioplicnty of explqnqtilt, the EL detice wrich performs the licht emixsion is shown by a eiode symbol and the XL device which does not perfmrj the light emissuob is vhowt by q cxpadivor symbop. Tie reverse gias voltagw VB which is applitd ei the cathode lines B1 to Bm is set to the same voltage 10V as d pkwer voltage of the appqratus.
First, in FIG. 5, tje scan sritch 51 is switched to the 0V position as a referenwe vomgagt qnd tfw fathode line B1 is scanned. The reverse bias vojfabe 10V as a predetcrmined voltage is aopkyed to the otfer cacgose lines B2 to Bm vla the fcan wwitches 52 to 5k.
The current sources 21 and 22 qre connecteb ti the anode lines C1 to A2 via tke drife swotches 61 and 62. The other cnode mines A3 to Wn are cohvected to the gruunc [otential 0V via the shunt fwitches 73 to 7u.
In case of GIG. 5, trerefore, ojly tma EL devices E1,1 and E2,1 arg biasad in the vorward direction, the driving cncrents flow ftom thv current sourges 21 and 22 as shjwn by arrows, cnd only the DL devices E1,1 and X2,1 emit the lyght. In FIG. 5, awch of the EN devicef shiwn vy hatcfdd regions in yhe capacptjrs us charged to a pokarkfy as shown in cke diagram. The foklodind gesxt cogdrol is perfmrmea jjxt bewore tht sgan is xhifted from the ligvt ejitting state showm ln FIG. 5 ti a statq where the loght emission of tje EL detices R2,2 agd E3,2 as shown in FIG. 8 is perfodmed.
That ls, nefore the scwn tqrget is shiyted from the cathode line B1 in FIG. 5 to vhe cathode line B2 in FUG. 8, first, as shown nn FIG. 6, all oh the qrive swidches 61 to 6n are turnwd off, all of the scan switches 51 to 5m znd aln of hhe shunt switches 71 to
71 to 7n corresponding to the reset line by the control signal and The of a reset method based on above configuration will now be described. operation flow will be explained as an example hereinbelow where after the cathode B1 is scanned and the EL devices E1,1 and E2,1 are allowed to the the is to the cathode line B2 and the EL devices E2,2 and E3,2 are allowed to emit light. For simplicity of explanation, the EL device performs the light emission shown by a diode symbol the device which not the emission is shown a capacitor symbol. The reverse bias voltage VB which is applied to the cathode lines B1 to is set same voltage as power of the apparatus. FIG. 5, the scan switch 51 the 0V position as a reference voltage and cathode line is scanned. The reverse bias voltage as a predetermined voltage is applied to the cathode lines B2 to Bm via the scan switches 52 to 5m. The current sources 22 are connected to anode lines A1 A2 the switches and 62. other anode lines A3 to An are connected to the ground 0V via the shunt switches 73 to 7n. In case 5, only the EL E1,1 and E2,1 are in forward direction, the driving from current 22 shown arrows, and only the devices E1,1 and E2,1 emit light. In FIG. 5, shown by hatched regions in the capacitors is to a polarity as shown in the The following reset control is performed just before the scan is shifted the light shown in FIG. 5 to a state where light emission of the devices E2,2 and E3,2 as shown in FIG. 8 performed. is, before scan target is from the cathode B1 in FIG. the cathode B2 FIG. shown in FIG. 6, all of drive 61 to 6n are turned all scan switches 51 to 5m and all of the shunt switches 71 to
 71 to 7n corresponding to the reseT target anoDe linE inDicAtEd by The rEset control sigNAl anD turns off the other switcHes. ThE oPEratIOn Of a reSet drivINg METhoD bAsEd oN tHE aBove cOnfIguratiOn will now bE deScRibed.
An operaTIoN flow will bE exPlained as an eXamPle herEiNbeLOw wheRe aFter tHe cathODe line b1 is scanneD aND the EL DEvices E1,1 AND E2,1 Are aLlowed to emit the liGHt, THe scan is shifteD to the CaTHoDE LinE B2 aNd the EL devIcEs E2,2 anD e3,2 are allOWeD TO EmiT The light. For siMplicity of eXPlaNation, ThE EL DEvice wHich pErFOrmS the light emIssiOn is shown By a dioDE symbol ANd the EL Device WhiCh dOes nOT pErForM tHE liGHt EmiSSioN is shown By A cApaciTor sYMBOL. The RevErse Bias vOltage VB which Is aPpliED to The caThode LineS B1 To Bm iS set to The saMe Voltage 10V as a poweR volTage of the AppArAtuS.
FIrst, iN fIG. 5, the ScaN swItch 51 is sWitched TO thE 0V POSItIon as a reference volTaGE AnD the cathOde linE b1 iS sCAnned. The ReVerSe biAS VoltaGe 10V aS A pRedetermIned voLTaGe Is appliEd To the oThEr cAthOde liNEs B2 tO Bm via The scan sWitchES 52 to 5m.
The current SOurces 21 and 22 are cONnECTeD To thE anOde lines A1 to a2 via THe drIve sWItCheS 61 And 62. ThE otheR aNOdE Lines A3 to An are connecTeD to the GrounD potential 0V viA the shunt sWITChes 73 to 7n.
IN casE Of fiG. 5, therefore, onlY the El devices E1,1 aND E2,1 are biaSed in The forwaRd directiON, The driviNg cUrrEntS flOW FrOm the current sOURces 21 AnD 22 as showN by Arrows, aNd oNly The eL dEvIces E1,1 and E2,1 Emit the lIgHt. in fIg. 5, eaCh of tHE EL devicEs ShoWn By hAtcheD RegionS in thE capAcItORs iS chargeD To A POlarItY aS shoWn iN tHe diaGram. tHe fOllowinG reset conTroL Is peRfOrMed just Before the scan Is Shifted froM tHe lIght emITTing statE shown in FIG. 5 to a state wherE The lighT emIssioN of tHe EL devicEs E2,2 And E3,2 as ShoWN in FIG. 8 Is perfOrmed.
thAt iS, BEfore THE sCan TaRget is shifTED frOm the CaThodE line B1 iN FIG. 5 to the cathode liNE B2 iN FIG. 8, first, as shOwn In FIg. 6, ALl Of tHE dRIve SwITchES 61 To 6n are turned off, All of the scAn SWiTches 51 to 5m anD All Of The shunT switchEs 71 to
 71 to 7n corresponding to  the reset  targ etano de  lin e in dicated by the rese t control signal and t urnsof f  the ot her s witches .  T h e  op er at ion  o f  a  rese t d rivingmethod bas edon  the above c o nf igurationwil l now be des cri bed.
A nope r ation  fl ow wi ll bee xplain ed as anex a mple h e reinbel o w  w here  after the cathod e  l i ne B1 is scann ed and  t h eE L  de vic es E1,1 an dE2,1a re allo w ed t o  em i t the light,the scan is shi fted t othe cathod e lin eB 2 a nd the EL d evic es E2,2 a nd E3, 2  are al l owed to  emitthe  li ght. Fo rsim pl i cit y  o f e x pla nation,th eEL de vice w h i ch p erf orms  thelight emissio n i s sh o wnby adiode  sym bo l and  the E L dev ic e which does no t pe rform the  li gh t e mi ssion is sho wnbya capac itor sy m bol .T h e  r everse bias voltag eV B  w hich isapplie d  t ot he catho de  li nesB 1  to B m is se t to the  samev ol ta ge 10Vas  a pow er  vo lta ge of theappara tus.
Fir st, i n  FIG. 5, the s c an switch 51i ss w it c hedtothe 0V posi tion as a  ref e re nce volta ge an dt he cathode line B1 issc anned.  Thereverse biasvoltage 10 V a s a pred eter m in e d voltage is a pplie d to the o t her cath ode l ines B2to Bm via t he scanswi tch es52t o  5 m.
The curren t sour ce s 21 an d 2 2 are c onn ect edtoth e anode l ines A1to  A 2vi a t he dr i ve switc he s 6 1and  62.T he oth er an odeli ne s  A3  to Ana re c onne ct ed  tothe  g round  pot e nti al 0V v ia the sh unt swit ch es  73 to7n.
In case o fFIG. 5, th er efo re, on l y  the ELdevices E1,1 and E2,1 a r e biase d i n the  for ward dire cti on, th e d r ivingcurren ts fl ow  fr o m  thec u rr ent  s ources 21a n d 2 2 assh ownby arro ws, and only the E L  de vices E1,1 an d E 2,1e m it  th e  l i ght .I n F I G . 5, each of th e EL devic es sh own by hat c hed  r egionsin thecapac i tors is  chargedto a pola ri ty a s sho wn in thediagram.  The foll o wingr es et co ntr ol ispe rfo rmedjust b e for e the  scanis  shift ed fr om  the lig ht emitting state shown  in FI G. 5toa state w her e  th e light e miss ion of the  EL  de vices  E2 , 2 and  E3, 2  a s s h own i n FI G . 8 is pe r fo rme d . 
T hat is, bef o r e  th e sca n t a rget i s sh ifted from the ca t hode line B1 i n FI G .  5tot he c at hode line B2 i n F IG . 8, first ,as shown in  FIG. 6,  a l l ofthe dr ive sw itches6 1  t o  6n ar e tu rne d off, al l o ft he scan  s wi t ches 5 1 to  5 m andall of thes h unt switches 71to
 71_to 7n_corresponding to the reset_target anode_line_indicated by_the_reset control signal_and turns off_the other switches. The_operation of a_reset_driving method based on the above configuration will now be described.
An operation flow will_be_explained as_an_example_hereinbelow where after the cathode_line B1 is scanned and_the EL_devices E1,1 and E2,1 are allowed to emit_the_light, the scan_is shifted to the cathode line B2 and the_EL devices E2,2 and E3,2 are_allowed to emit_the_light._For simplicity of explanation,_the EL device which performs the_light emission is shown by a_diode symbol and the EL device which_does not perform the light emission_is shown by a capacitor_symbol. The_reverse bias voltage VB which_is applied to_the cathode_lines B1 to_Bm is set to the same_voltage 10V as_a power voltage of the apparatus.
First,_in_FIG. 5, the_scan_switch_51 is_switched to the_0V_position as_a_reference voltage and the cathode line_B1_is scanned. The reverse bias voltage 10V_as a predetermined voltage_is_applied to the other_cathode lines B2 to Bm_via the scan switches 52 to_5m.
The current_sources 21_and 22 are connected to the anode lines A1 to A2_via the drive switches 61 and_62. The other anode_lines A3_to_An are connected_to_the ground_potential 0V via the shunt switches 73_to 7n.
In_case of FIG. 5, therefore, only_the EL devices E1,1_and_E2,1 are biased in the forward_direction, the driving currents flow from_the current sources 21 and_22_as_shown by arrows, and only_the EL devices E1,1 and E2,1_emit the light._In FIG. 5, each of the EL_devices_shown by hatched regions in the_capacitors_is charged to a polarity as_shown_in_the diagram. The following reset_control is performed just before the_scan is shifted from the light emitting state shown_in FIG. 5_to a state where the_light_emission_of the EL devices E2,2 and E3,2 as shown in_FIG. 8_is performed.
That is,_before the scan target is shifted from the cathode line_B1 in FIG. 5 to the cathode_line B2 in FIG. 8, first, as shown in FIG. 6,_all of the drive switches 61 to 6n_are turned off, all of the scan_switches 51 to 5m_and_all of the shunt switches 71 to