Surface discharge plasma display panel

• US 6,297,590 B1
• Filed: 05/12/2000
• Issued: 10/02/2001
• Est. Priority Date: 08/25/1995
• Status: Expired due to Term

• Current Assignee: Hitachi Maxell Limited (Hitachi, Ltd.)
• Original Assignee: Fujitsu Limited
• Inventors: Konno, Keiichiro, Nanto, Toshiyuki, Nakahara, Hiroyuki, Shinoda, Tsutae, Awaji, Noriyuki, Wakitani, Masayuki, Yanagibashi, Yasuo, Sakamoto, Naohito
• Primary Examiner(s): Patel, Nimeshkumar D.
• Assistant Examiner(s): HOPPER, TODD R
• Application Number:
  US09/569,472
• Time in Patent Office: 508 Days
• Field of Search: 313/581, 313/584, 313/585, 313/586, 313/587
• US Class Current: 313/586
• CPC Class Codes: H01J 11/12 with main electrodes provided on both sides of the discharge space
• CPC Class Codes: H01J 11/44 Optical arrangements or shielding arrangements, e.g. filters, black matrices, light reflecting means or electromagnetic shielding means
• CPC Class Codes: H01J 2211/444 Means for improving contrast or colour purity, e.g. black matrix or light shielding means
• CPC Class Codes: H01J 9/02 Manufacture of electrodes or electrode systems
• CPC Class Codes: H01J 9/205 Applying optical coatings or shielding coatings to the vessel of flat panel displays, e.g. applying filter layers, electromagnetic interference shielding layers, anti-reflection coatings or anti-glare coatings

Abstract

A surface discharge type plasma display panel(PDP) includes a pair of front and rear substrates (11, 21) with a discharge space (30) therebetween and a plurality of pair display electrodes on internal surface of either the front or rear substrate. The display electrodes are extending along each display line L. The PDP further includes a light shielding film (45), having a belt shape extending along the display line direction, formed on either internal or outer surface of the front substrate (11) to overlap each area S2 between the adjacent display lines L and sandwiched between the display electrodes X and Y.

Claims

1. A surface discharge plasma display panel of the three-electrode-type, comprising:

a plurality of display electrode pairs arranged in parallel on a front substrate, the display electrodes of one display electrode pair being separated by a discharge slit for surface discharge, and adjacent display electrode pairs being separated by reverse slits where a discharge does not occur, and

a plurality of address electrodes and a plurality of strip-shaped phosphors arranged perpendicular to the display electrode pairs on a rear substrate, the surface discharge plasma display panel further including;

a belt-shaped light shielding film arranged in the reverse slits between adjacent display electrode pairs on the front substrate, for shielding visibility of the stripe-shaped phosphors on the rear substrate.

2. The surface discharge plasma display panel of claim 1, wherein the light shielding film is darker than the phosphors, when the phosphors are not emitting.

3. The surface discharge plasma display panel of claim 1, further comprising:

a dielectric layer formed on the internal surface of the front substrate to cover the display electrodes,

wherein the light shielding film is formed between the front substrate and the dielectric layer.

4. The surface discharge plasma display panel of claim 2, further comprising:

a dielectric layer formed on the internal surface of the front substrate to cover the display electrodes,

wherein the light shielding film is formed between the front substrate and the dielectric layer.

5. The surface discharge plasma display panel of claim 1, further comprising:

a dielectric layer formed on the internal surface of the front substrate to cover the display electrodes,

wherein the light shielding film is provided at an intermediate portion in the thickness direction of the dielectric layer and is separated from the display electrode.

6. The surface discharge plasma display panel of claim 2, further comprising:

a dielectric layer formed on the internal surface of the front substrate to cover the display electrodes,

wherein the light shielding film is provided at an intermediate portion in the thickness direction of the dielectric layer and is separated from the display electrode.

7. The surface discharge plasma display panel of claim 1, wherein:

the display electrode includes a transparent and conductive layer, and

the light shielding film is made of a dark material including Mn, Fe and Cu, is located between the display electrode pairs, and is separated from the display electrodes by a color change prevention gap.

8. The surface discharge plasma display panel of claim 3, wherein:

the display electrode pairs include a transparent electrode and a metal electrode having a narrower width than the transparent electrode and overlapping an edge portion of the transparent electrode near the reverse slit, and

the light shielding film is provided at the front substrate side of the display electrode, overlapping the metal electrode at both sides of the reverse slit.

13. The surface discharge plasma display panel of claim 1, wherein:

the front substrate or the rear substrate includes a glass substrate, and

the light shielding film includes a glass material.

14. The surface discharge plasma display panel of claim 2, wherein:

the front substrate or the rear substrate includes a glass substrate, and

the light shielding film includes a glass material.

15. The surface discharge plasma display panel of claim 3, wherein:

the front substrate or the rear substrate includes a glass substrate, and

the light shielding film includes a glass material.

16. The surface discharge plasma display panel of claim 5, wherein:

the front substrate or the rear substrate includes a glass substrate, and

the light shielding film includes a glass material.

17. The surface discharge plasma display panel of claim 7, wherein:

the front substrate or the rear substrate includes a glass substrate, and

the light shielding film includes a glass material.

18. The surface discharge plasma display panel of claim 8, wherein:

the front substrate or the rear substrate includes a glass substrate, and

the light shielding film includes a glass material.

9. A surface discharge plasma display panel of the three-electrode-type, comprising:

a plurality of display electrode pairs arranged in parallel on a front substrate, display electrodes of one display electrode pair being separated by a discharge slit for surface discharge, and adjacent display electrode pairs being separated by reverse slits where a discharge does not occur, and

a plurality of address electrodes and a plurality of strip-shaped phosphors arranged perpendicular to the display electrode pairs on a rear substrate, the surface discharge plasma display panel further including;

a belt-shaped light shielding film arranged in the reverse slits between adjacent display electrode pairs on the front substrate and partly overlapping the display electrodes, the light shielding film shielding visibility of the phosphors on the rear substrate at the reverse slits.

19. The surface discharge plasma display panel of claim 9, wherein:

the front substrate or the rear substrate includes a glass substrate, and

the light shielding film includes a glass material.

10. A surface discharge plasma display panel of the three-electrode-type, comprising:

a plurality of display electrode pairs arranged in parallel on a front substrate, display electrodes of one display electrode pair being separated by a discharge slit for surface discharge, and adjacent display electrode pairs being separated by reverse slits where a discharge does not occur, and

a plurality of address electrodes and a plurality of strip-shaped phosphors arranged perpendicular to the display electrode pairs on a rear substrate, the surface discharge plasma display panel further including;

a belt-shaped light shielding film arranged in the reverse slits between adjacent display electrode pairs on the front substrate an edge of the light shielding film contacting the display electrodes, the light shielding film shielding visibility of the phosphors on the rear substrate at the reverse slits.

20. The surface discharge plasma display panel of claim 10, wherein:

the front substrate or the rear substrate includes a glass substrate, and

the light shielding film includes a glass material.

11. A surface discharge plasma display panel of the three-electrode-type, comprising:

a plurality of display electrode pairs arranged in parallel on a front substrate, display electrodes of one display electrode pair being separated by a discharge slit for surface discharge, and adjacent display electrode pairs being separated by reverse slits where a discharge does not occur, and

a plurality of address electrodes and a plurality of strip-shaped phosphors arranged perpendicular to the display electrode pairs on a rear substrate, the surface discharge plasma display panel further including;

a belt-shaped light shielding film arranged in the reverse slits between adjacent display electrode pairs on the front substrate and the light shielding film being separated from the display electrodes, the light shielding film shielding visibility of the phosphors on the rear substrate at the reverse slits.

12. The surface discharge plasma display panel of claim 11, further comprising a dielectric layer covering the display electrode pairs and the light shielding film, provided on the front substrate, wherein the light shielding film is made of a dark material.

21. The surface discharge plasma display panel of claim,11, wherein:

the front substrate or the rear substrate includes a glass substrate, and

the light shielding film includes a glass material.

22. The surface discharge plasma display panel of claim 12, wherein:

the front substrate or the rear substrate includes a glass substrate, and

the light shielding film includes a glass material.