Plasma display panel
AssigneeLG Electronics Inc.
InventorsMyeong Soo Chang, Byung Gil Ryu
Life of this patent
Estimating the term…
Abstract
A plasma display panel includes a filter for controlling a light transmittance by selectively diffracting a light emitted from a discharge cell of a plasma display panel on the basis of an electric signal. A luminance efficacy can be enhanced by using the low-priced filter and the contrast of a plasma display panel can be improved.
Claims20
A plasma display panel comprising:
- a filter for controlling a light transmittance by selectively diffracting a light emitted from a discharge cell of a plasma display panel on the basis of an electric signal.
A plasma display panel having a plurality of discharge cells constructed by forming barrier ribs between an upper glass substrate and a lower glass substrate, comprising:
- an electro-optic filter formed on the upper glass substrate and selectively diffracting a light emitted from the discharge cell on the basis of an electric signal.
A plasma display panel having an upper glass substrate, a sustain electrode formed on the upper glass substrate;
- a bus electrode formed on the sustain electrode;
- a lower glass substrate;
- a lower dielectric layer and an address electrode formed on the lower glass substrate, a fluorescent layer formed on the lower dielectric layer and the address electrode;
- and a barrier rib formed on the lower dielectric layer, further comprising:
- an electro-optic filter comprising:
- a first polarizer positioned on the upper glass substrate, transmitting a light emitted from the discharge cell in the plasma display panel through the upper glass substrate, and having a first polarization direction;
- a PZLT (lead lanthanum zirconium titanate) plate positioned on the first polarizer and selectively diffracting the light transmitted through the first polarizer on the basis of an electric signal;
- and
- a second polarizer for selectively transmitting the diffracted light and having a second polarization direction.
Dependencies are inferred from the claim text.