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1.5.
Pixel Structure
50 inch plasma display panel has 1,049,088 pixels.
Each pixels structure is shown fig. E.
1.6.
Sub Field Drive system
Brightness control of plasma display panel is carried out by
plasma discharge time change. To control each pixelís
brightness Sub-field drive system is used.
A sub-field is consist of Initialize, Write and sustain operation.
Fig. E
Fig. F
1.7.
Initialization
To clear any remaining electric charge into the pixel, trapezoid
voltage is applied between the scan and sustain electrodes.
Plasma discharge is started but the discharge become small
gradually.
Then any electric charge is cleared.
1.8.
Write
Data Pulse which is positive polarity is input to data electrode
and Scan pulse which is negative polarity is input to scan
electrode simultaneously.
That means sum of data and scan pulses voltage is applied
between two electrodes as discharge start voltage.
Discharge is started into the pixel and gas is ionized.
During discharging Ion is charged on the scan electrode side
and electron is charged on data electrode side.
5
Fig. G
Fig. H
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