KD0
KD0
KD0
KD07
7
7
70D
0D
0D
0D2
2
2
20
0
0
0-50N
-50N
-50N
-50NC
C
C
C-
-
-
-A3
A3
A3
A3
©
AllRightsReserved5/26REVA
2
2
2
2Scope
Scope
Scope
Scope
ThisspecificationappliestotheTFTLCDmodulewhichisdesignedand
manufacturedbyLCMFactoryof
3
3
3
3Normative
Normative
Normative
NormativeReference
Reference
Reference
Reference
GB/T4619-1996《LiquidCrystalDisplay
Test
Method》
GB/T2424《 Basicenvironmental
T
estingProceduresforElectricandElectronic
Products.
》
GB/T2423《Basic
T
estingProceduresforElectricandElectronicProducts》
IEC61747-1《SIXTHPARTGB2828`2829-87《NationalStandardofPRC》
4
4
4
4D
D
D
Definitions
efinitions
efinitions
efinitions
4
4
4
4.1
.1
.1
.1Definitions
Definitions
Definitions
Definitionso
o
o
of
f
f
fVop
Vop
Vop
Vop
ThedefinitionsofthresholdvoltageVth1,Vth2thefollowingtypicalwaveforms
areappliedonliquidcrystalbythemethodofequalizedvoltageforeachdutyand
bias.
【
selectedwaveform
】【
non-selectedwaveform
】
①Vth1:Thevoltagewhichthebrightnessofsegmentindicates50%of
saturatedvalueontheconditionsofselectedwaveform
(f
f
=80Hz,Φ=10
°
θ=270°at25
℃
)
②Vth2:Thevoltagewhichthebrightnessofsegmentindicates50%of
saturatedvalueontheconditionsofnon-selectedwaveform
(f
f
=80Hz,Φ=10°θ=270°at25℃)
③
Vop:(Vth1(50%)+Vth2(50%))/2(f
f
=80Hz,Φ=10
°
θ=270°at25
℃
)
4
4
4
4.2
.2
.2
.2D
D
D
Definition
efinition
efinition
efinitionof
of
of
ofR
R
R
Response
esponse
esponse
esponseT
T
T
Time
ime
ime
ime
T
T
T
T
r,
r,
r,
r,
T
T
T
Td
d
d
d
①
Tr:Thetimerequiredwhichthebrightnessofsegment
becomes10%from100%whenwaveformisswitchedto
selectedonefromnon-selectedone.(f
f
=80Hz,Φ=10°
θ=270°at25℃)
②Td:Thetimerequiredwhichthebrightnessofsegment
ON TAT INDUSTRIAL COMPANY
ON TAT INDUSTRIAL COMPANY
