AC type plasma display panel for back light of liquid crystal display device

• US 6,563,266 B2
• Filed: 11/06/2001
• Issued: 05/13/2003
• Est. Priority Date: 11/22/2000
• Status: Expired due to Term

• Current Assignee: BOE HYDIS Technology Company Limited (SK Hynix Inc.)
• Original Assignee: BOE HYDIS Technology Company Limited (SK Hynix Inc.)
• Inventors: Lee, Jun Ho, Ok, Do Young
• Primary Examiner(s): Patel, Vip
• Application Number:
  US09/993,000
• Publication Number:
  US 20020060519A1
• Time in Patent Office: 553 Days
• Field of Search: 313/582, 313/583, 313/584, 313/586
• US Class Current: 313/582
• CPC Class Codes: H01J 11/00 Gas-filled discharge tubes with alternating current induction of the discharge, e.g. alternating current plasma display panels [AC-PDP] circuits or methods for driving PDPs G09G3/28; Gas-filled discharge tubes without any main electrode inside the vessel; Gas-filled discharge tubes with at least one main electrode outside the vessel
• CPC Class Codes: H01J 2211/22 Electrodes
• CPC Class Codes: H01J 2211/361 characterized by the shape

Abstract

Disclosed is an AC type plasma display panel for back light of liquid crystal display device. The disclosed comprises a rear substrate and a front substrate arranged opposite to each other with a predetermined distance; seal paste for sealing the edges of the substrates; a pair of discharge electrodes interposed between the rear substrate and the front substrate, having a plurality of holes and separated with a predetermined distance in a state of no contact with the substrates; and a plurality of spacers interposed between the rear substrate and discharge electrodes and between the front substrate and discharge electrodes in order to maintain distances.

Claims

1. A AC type plasma display panel for back light of liquid crystal display device comprising:

a rear substrate and a front substrate arranged opposite to each other with a predetermined distance;

seal paste for sealing the edges of the substrates;

a pair of discharge electrodes interposed between the rear substrate and the front substrate, having a plurality of holes and separated with a predetermined distance in a state of no contact with the substrates; and

a plurality of spacers interposed between the rear substrate and discharge electrodes and between the front substrate and discharge electrodes in order to maintain distances.

2. The AC type plasma display panel for back light of liquid crystal display device according to claim 1, wherein the rear substrate is an aluminum substrate or a glass substrate coated a reflective film and the front substrate is a glass substrate.

3. The AC type plasma display panel for back light of liquid crystal display device according to claim 1, further comprising a fluorescent layer coated on the inner side of the front substrate.

4. The AC type plasma display panel for back light of liquid crystal display device according to claim 1, wherein the discharge electrodes are made of one metal plate selected from a group comprising aluminum, chrome, copper and nickel.

5. The AC type plasma display panel for back light of liquid crystal display device according to claim 4, wherein the fabrication process of discharge electrode comprises the steps of:

forming a plurality of holes in a metal plate by using a punching process;

dividing the metal plate having a plurality of holes into two;

forming thin dielectric layers on the surface of the divided metal plates by using an anodizing process; and

fixing the metal plates between the rear substrate and the front substrate with a predetermined distance in a state of no contact with the substrates.

6. The AC type plasma display panel for back light of liquid crystal display device according to claim 5, wherein the metal plates are fixed by putting in outside sealing silicon rubbers having shapes of “

⊂

” and

“

⊃

”

on the edges of the metal plates and then printing the metal plates on the rear substrate.