# US 7,411,346 B2 · Plasma display panel having multiple substrate parts

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- Number: US 7,411,346 B2
- Document ID: US7411346B2
- Status: Granted
- Kind: B2
- Application number: 11/133,179
- Filed: 2005-05-20
- Published: 2006-02-09
- Granted: 2008-08-12
- Earliest claimed: 2004-08-03
- Assignees: Samsung SDI Co., Ltd.
- Inventors: Young-mo Kim; Hidekazu Hatanaka; Ho-nyeon Lee; Seung-hyun Son; Sang-hun Jang; Seong-eui Lee; Gi-young Kim; Hyoung-bin Park
- Web page: https://patentgrep.com/patent/US7411346B2

## CPC

- H01J 11/38: Dielectric or insulating layers
- H01J 11/12: with main electrodes provided on both sides of the discharge space
- H01J 11/34: Vessels, containers or parts thereof, e.g. substrates
- H01J 2211/66: Cooling arrangements
- H01J: ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS (spark-gaps H01T; electric arc lamps H05B31/00; particle accelerators H05H)

## Abstract

A plasma display panel including a front substrate and a rear substrate facing each other, a plurality of barrier ribs formed between the front substrate and the rear substrate, a discharge generation unit that causes a plasma discharge in a discharge space, and a fluorescent layer that generates visible light due to the discharge. The rear substrate includes at least two rear substrate parts connected to each other.

## Claims

### Claim 1

A plasma display panel (PDP), comprising:
a front substrate and a rear substrate facing each other;
a plurality of barrier ribs between the front substrate and the rear substrate;
a discharge generation unit that causes a plasma discharge in a discharge space; and
a fluorescent layer that generates visible light due to discharge,
wherein the rear substrate includes at least two rear substrate parts connected to each other, the at least two rear substrate parts comprising a metallic material and facing different portions of the front substrate,
wherein a connection line is arranged between the at least two rear substrate parts, and
wherein the front substrate and the rear substrate are separated from each other by a space in a region corresponding to the connection line.

### Claim 2 (depends on 1)

The PDP of claim 1, wherein the rear substrate parts are connected by welding.

### Claim 3 (depends on 1)

The PDP of claim 1, wherein the rear substrate parts are connected by tape.

### Claim 4 (depends on 1)

The PDP of claim 1, further comprising a planarizing layer formed on an inner surface of the rear substrate.

### Claim 5 (depends on 4)

The PDP of claim 4, wherein the planarizing layer comprises a dielectric material.

### Claim 6 (depends on 5)

The PDP of claim 5, wherein the dielectric material is a material selected from the group consisting of PbO, SiO2, and Si3N4.

### Claim 7 (depends on 6)

The PDP of claim 6, wherein the planarizing layer is about 1μm to about 200μm thick.

### Claim 8 (depends on 1)

The PDP of claim 1, further comprising cooling pins for radiating heat on an external surface of the rear substrate.

### Claim 9 (depends on 8)

The PDP of claim 8, wherein the cooling pins are coupled to the rear substrate.

### Claim 10 (depends on 8)

The PDP of claim 8, wherein the cooling pins are formed as an integrated body together with the rear substrate.

### Claim 11 (depends on 8)

The PDP of claim 8, wherein the cooling pins are formed of a metallic material.

### Claim 12 (depends on 1)

The PDP of claim 1, wherein the discharge generation unit includes a first sustaining electrode and a second sustaining electrode formed in parallel to each other on an inner surface of the front substrate.

### Claim 13 (depends on 12)

The PDP of claim 12, wherein the first sustaining electrode and the second sustaining electrode are buried by a first dielectric layer.

### Claim 14 (depends on 12)

The PDP of claim 12, wherein the discharge generation unit further includes an address electrode formed on an inner surface of the rear substrate and in a direction to cross the first sustaining electrode and the second sustaining electrode.

### Claim 15 (depends on 14)

The PDP of claim 14, wherein the address electrode is buried by a second dielectric layer.

### Claim 16 (depends on 14)

The PDP of claim 14, wherein the connection line formed between the rear substrate parts is parallel to the address electrode.

### Claim 17 (depends on 16)

The PDP of claim 16, wherein a barrier rib is formed on the connection line.

### Claim 18 (depends on 1)

The PDP of claim 1, wherein the discharge generation unit includes an address electrode on an inner surface of the front substrate.

### Claim 19 (depends on 18)

The PDP of claim 18, wherein the address electrode is buried by a first dielectric layer.

### Claim 20 (depends on 18)

The PDP of claim 18, wherein the discharge generation unit further comprises a first sustaining electrode and a second sustaining electrode formed on an inner surface of the rear substrate in parallel to each other and in a direction to cross the address electrode.

### Claim 21 (depends on 20)

The PDP of claim 20, wherein the first sustaining electrode and the second sustaining electrode pair are buried by a second dielectric layer.

### Claim 22 (depends on 20)

The PDP of claim 20, wherein the connection line formed between the rear substrate parts is parallel to the first sustaining electrode and the second sustaining electrode.