Plasma Display Technology; Plasma Display Panel; Plasma Display Panel Structure; Rear Glass Structure - Panasonic TH-50PHD3 Service Manual

TH-50PHD3 / TH-50PHW3

1 Plasma Display Technology

1.1.

Plasma display panel

Panasonic 42 inch wide plasma display panel is develope for
large screen multimedia display with space saving.
The plasma display panel use AC type Sub-field drive system
with Dual scanning system.
This panel have also Panasonic original Asymmetric cell and
Plasma AI technology.
Fig. A Is the CRT and Plasma Display Panel(PDP) comparison
chart.
1.2.

Plasma display panel structure

Plasma display panel structure
Panasonic Plasma display panel is consist of front glass, rear
glass and Aluminum base.
The front glass has each 768 lines scan and sustain
transparence electrodes.
The rear glass has 4098 (1366 x 3 ) data electrodes on the
inner surface. These electrodes are connected to the data drive
circuit boards directory.
Fig. A
Fig. B
1.3.

Rear Glass Structure

On the rear glass the data electrode is mounted.
The dielectric is coated on the rear glass.
Red, Green and Blue colour phosphors are formed on the data
electrode with the ribs. However to improve colour reproduction
and brightness, each colour phosphors are formed different
width This is called " Asymmetrical cell " as Panasonic original
technology.
1.4.

Front Glass Structure

On the front glass scan and sustain transparent electrodes are
mounted in pair.
The dielectrics is coated on the front grass.
MgO over coat is also applied on the dielectrics.
The front and rear glasses are piled and sealed . And low
presser gas are charged between two glasses.
4
Fig. C
Fig. D