US 7,804,247 B2Granted

Plasma display panel with panel member including recessed portion

AssigneePanasonic Corporation

InventorsYukihiro Morita, Naoki Kosugi

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Abstract

A plasma display panel has a front panel (10) and a back panel (20) that is arranged with a discharge space (30) therebetween. On the surface of the front panel facing toward the discharge space, a scan electrode (102) and a sustain electrode (103) are arranged. A dielectric layer (104) and a protective layer (105) are provided to cover the electrodes thereof and the surface. Between the scan electrode and the sustain electrode, a recessed portion (10a) is arranged in the first panel surface. The bottom surface (10b) of the recessed portion is arranged more inward in a thickness direction of the first substrate than the surfaces of the first electrode and the second electrode facing the discharge space whereby low power consumption, improved luminous efficiency, and a suppressed increase of firing voltage is achieved.

Claims26

Dependent claims

A plasma display panel including a pair of panel members that are disposed in opposition to each other with a space therebetween, a first panel member out of the pair of panel members having a first electrode and a second electrode that are arranged parallel to each other with a predetermined interval on a surface of a first substrate facing toward the space, and a dielectric layer covering the surface of the first substrate, wherein

the first panel member includes a recessed portion that is recessed in a thickness direction of the first substrate, in an area between the first electrode and the second electrode on the surface facing toward the space,
each of the first electrode and the second electrode includes a plurality of element layers that are (i) arranged separately from each other in a thickness direction of the dielectric layer and (ii) electrically connected, and
the bottom surface of the recessed portion is kept to be more inward in the thickness direction of the first substrate than a main surface of an element layer which is arranged closest to the space among the plurality of element layers.

A manufacturing method of a plasma display panel, comprising:

an electrode formation step to form a first electrode and a second electrode to align parallel to each other with a predetermined interval on one main surface of a first substrate,
a dielectric layer formation step to form a dielectric layer to cover the main surface of the first substrate, and
a recessed portion formation step, in which part of the dielectric layer between the first electrode and the second electrode is removed to form a recessed portion whose bottom surface is kept to be more inward in a thickness direction of the first substrate than main surfaces of the first electrode and the second electrode facing toward the space, wherein
the electrode formation step is executed in parallel with the dielectric layer formation step, and
the first electrode and the second electrode are formed in a manner that (i) each electrode includes a plurality of element layers which are arranged separately from each other in the thickness direction of the first substrate, (ii) the element layers are electrically connected to each other, and (iii) the dielectric layer is formed in each space between the plurality of element layers.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 11/721,967Filed 13 Jan 2006
Priority: JP 2005-00685713 Jan 2005
Published: US 2009/0251388 A18 Oct 2009
Granted: 28 Sep 2010
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

H01J 11/34
Constructional details: vessels, containers or parts thereof, e.g. substrates
H01J 11/12
AC-PDPs with at least one main electrode being out of contact with the plasma: with main electrodes provided on both sides of the discharge space
H01J 11/24
Electrodes, e.g. special shape, material or configuration: sustain electrodes or scan electrodes
H01J 11/38
Vessels, containers or parts thereof, e.g. substrates: dielectric or insulating layers