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LCX021AM View Datasheet(PDF) - Sony Semiconductor

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LCX021AM Datasheet PDF : 24 Pages
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LCX021AM
3. 18-dot simultaneous sampling
The horizontal shift register samples SIGB1 to SIGB6, SUGG1 to SIGG6 and SIGR1 to SIGR6 signals
simultaneously. This requires phase matching between signals SIGB1 to SIGB6, SIGG1 to SIGG6 and SIGR1
to SIGR6 to prevent the horizontal resolution from deteriorating. Thus phase matching between each signal is
required using an external signal delaying circuit before applying the video signal to the LCD panel.
The block diagram of the delaying procedure using simple-and-hold method is as follows. The following phase
relationship diagram indicates the phase setting for right scan (RGT = High level). For left scan (RGT = Low
level), the phase settings for signals SIGB1 to SIGB6, SIGG1 to SIGG6 and SIGR1 to SIGR6 are exactly
reversed.
SIGB1, SIGG1, SIGR1
S/H
S/H
CK1
SIGB2, SIGG2, SIGR2
S/H
S/H
CK2
SIGB3, SIGG3, SIGR3
S/H
S/H
SIGB4, SIGG4, SIGR4
SIGB5, SIGG5, SIGR5
SIGB6, SIGG6, SIGR6
CK3
S/H
S/H
CK4
S/H
S/H
CK5
S/H
CK6
<Phase relationship of delaying sample-and-hold pulses> (right scan)
HCKn
CK1
CK2
CK3
CK4
CK5
CK6
SIGB1, SIGG1, SIGR1
SIGB2, SIGG2, SIGR2
SIGB3, SIGG3, SIGR3
SIGB4, SIGG4, SIGR4
SIGB5, SIGG5, SIGR5
SIGB6, SIGG6, SIGR6
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