IP Library Granted Patent US 7,830,091
Granted Patent B2
US 7,830,091 · App. 11/817,183 · Granted Nov 9, 2010

Plasma display panel

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 7,830,091
App. No.
11/817,183
Granted
Nov 9, 2010
Kind
B2
Abstract

A plasma display panel includes a front panel and a rear panel. The front panel includes a front substrate and a display electrode. The rear panel includes a rear substrate, a barrier rib, a data electrode, and a phosphor layer. The rear substrate is arranged while facing the front substrate to form a discharge space between the front panel and the rear substrate. The barrier rib is formed at the rear substrate to partition the discharge space, the data electrode is formed while intersecting the display electrode, and the phosphor layer is formed between the barrier ribs. The barrier rib is formed at the divided areas separately in a direction parallel to the data electrode, and the barrier ribs formed at the divided areas separately have different properties among the plurality of areas. A large-screen plasma display panel having a high-resolution display quality is easily realized by the above configuration.

Claims (32)

1. A plasma display panel, comprising:

a front panel, including:

a front substrate; and

a plurality of display electrodes disposed on the front substrate, each of the display electrodes composed of a first electrode and a second electrode opposing each other with a discharge gap therebetween, and

a rear panel, including:

a rear substrate facing the front substrate to form a discharge space therebetween;

a plurality of barrier ribs disposed on the rear substrate to divide the discharge space;

a data electrode disposed between the barrier ribs so as to intersect the plurality of display electrodes; and

a phosphor layer disposed between the barrier ribs,

wherein the plurality of barrier ribs are formed at a plurality of divided areas in parallel to the data electrode by a divisional exposure method, the plurality of divided areas forming a boundary, the boundary being formed substantially at a center of the rear panel,

the plurality of barrier ribs have different shapes at the boundary between the plurality of divided areas, and

each of the plurality of barrier ribs has a vertex portion, the vertex portions of the barrier ribs on one side of the boundary having a width different from a width of the vertex portions of the barrier ribs on another side of the boundary.

2. The plasma display panel according to claim 1 ,

wherein the boundary is provided substantially at a center of the rear panel, and

the plurality of barrier ribs have patterns inclined outwardly from the boundary in respective right and left areas divided by the boundary.

3. The plasma display panel according to claim 1 ,

wherein the boundary is provided substantially at a center of the rear panel, and

the barrier rib located at one of right and left areas in relation to the boundary is formed so as to be inclined to the barrier rib at the other area in a pattern shape.

4. The plasma display panel according to claim 1 ,

wherein the barrier rib formed at the divided areas separately has a shape in which a width of the barrier rib in a crosswise direction at the boundary is wider than a width of the barrier rib in the crosswise direction in other portions.

5. A plasma display panel, comprising:

a front panel, including:

a front substrate; and

a plurality of display electrodes disposed on the front substrate, each of the display electrodes composed of a first electrode and a second electrode opposing each other with a discharge gap therebetween, and

a rear panel, including:

a rear substrate facing the front substrate to form a discharge space therebetween;

a plurality of barrier ribs disposed on the rear substrate to divide the discharge space;

a data electrode disposed between the barrier ribs so as to intersect the plurality of display electrodes; and

a phosphor layer disposed between the barrier ribs,

wherein the plurality of barrier ribs are formed at a plurality of divided areas in parallel to the data electrode by a divisional exposure method, the plurality of divided areas forming a boundary,

the plurality of barrier ribs have different properties at the boundary between the plurality of divided areas, and

wherein the barrier ribs formed at the divided areas separately differ from each other in a reflectance at the boundary between the plurality of divided areas.

Assignments (2)
CHANGE OF NAME Recorded Nov 11, 2008
From: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
To: PANASONIC CORPORATION
Reel/Frame 021818/0725 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 9, 2008
From: SUZUKI, MASANORI; HOKAZONO, NOBUTAKA; UEDA, KENTARO; NAGINO, TOSHIFUMI
To: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
Reel/Frame 020342/0927 →