Source: http://www.google.co.uk/patents/US6784614
Timestamp: 2014-10-01 10:25:47
Document Index: 375325151

Matched Legal Cases: ['art. 7', 'art. 10', 'art. 11', 'art. 13', 'art. 20', 'art. 24', 'art. 26', 'art. 30']

Patent US6784614 - Electrode plate and manufacturing method for the same, and gas discharge ... - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign in<nobr>Advanced Patent Search</nobr>PatentsAn electrode plate, a method of manufacturing the same, a gas discharge panel using an electrode plate, and a method of manufacturing the same are provided by incorporating a relatively simple structure, which can keep electrodes formed on a plate from peeling or becoming misaligned. In the electrode...http://www.google.co.uk/patents/US6784614?utm_source=gb-gplus-sharePatent US6784614 - Electrode plate and manufacturing method for the same, and gas discharge panel having electrode plate and manufacturing method for the sameAdvanced Patent SearchPublication numberUS6784614 B2Publication typeGrantApplication numberUS 10/610,034Publication date31 Aug 2004Filing date30 Jun 2003Priority date9 Dec 1999Fee statusPaidAlso published asCN1300045A, CN101295613A, US6603262, US6879105, US7125303, US20020008481, US20040027070, US20040090181, US20040095067Publication number10610034, 610034, US 6784614 B2, US 6784614B2, US-B2-6784614, US6784614 B2, US6784614B2InventorsHideaki Yasui, Kazuhiko Sugimoto, Keisuke Sumida, Hiroyoshi Tanaka, Shinya Fujiwara, Hideki Marunaka, Kazunori HiraoOriginal AssigneeMatsushita Electric Industrial Co., Ltd.Export CitationBiBTeX, EndNote, RefManPatent Citations (14), Non-Patent Citations (1), Classifications (23), Legal Events (2) External Links: USPTO, USPTO Assignment, EspacenetElectrode plate and manufacturing method for the same, and gas discharge panel having electrode plate and manufacturing method for the sameUS 6784614 B2Abstract An electrode plate, a method of manufacturing the same, a gas discharge panel using an electrode plate, and a method of manufacturing the same are provided by incorporating a relatively simple structure, which can keep electrodes formed on a plate from peeling or becoming misaligned. In the electrode plate, at least one electrode is formed and adhered to a main surface of a plate by a thick film or thin film formation method, wherein of all ends of the electrode, at least an end opposite to an end at a power supply point is adhered to the main surface of the plate with stronger adhesion than the other parts of the electrode. When this electrode plate is used as a front panel glass having a plurality of pairs of display electrodes in a gas discharge panel, at least an end of each bus line opposite to an end at a power supply point is firmly adhered to the surface of the front panel glass, thereby keeping the bus lines formed on respective transparent electrodes from warping and peeling away or becoming misaligned. Such a gas discharge panel can deliver excellent display performance.
What is claimed is: 1. An electrode plate for use in a flat panel display, comprising a plate and at least one electrode which is formed and adhered to at least one main surface of the plate using a thin film formation method or a thick film formation method, characterized in that
of an end area of the electrode at a power supply point and an end area of the electrode opposite to the end area at the power supply point, at least the end area of the electrode opposite to the end area at the power supply point is adhered to the main surface of the plate with stronger adhesion than other areas of the electrode. 2. The electrode plate of claim 1,
wherein the electrode is strip-shaped, and at least the end area of the electrode opposite to the end area at the power supply point is wider than the other areas of the electrode, so as to be adhered to the main surface of the plate with stronger adhesion than the other areas of the electrode. 3. The electrode plate of claim 1,
wherein at least the end area of the electrode opposite to the end area at the power supply point is adhered to the main surface of the plate using an adhesive, so as to be adhered to the main surface of the plate with stronger adhesion than the other areas of the electrode. 4. The electrode plate of claim 1,
wherein at least the end area of the electrode opposite to the end area at the power supply point is adhered to part of the main surface of the plate which has been subjected to at least one surface treatment, so as to be adhered to the main surface of the plate with stronger adhesion than the other areas of the electrode. 5. The electrode plate of claim 4,
wherein the surface treatments are selected from the group consisting of ultraviolet irradiation, plasma irradiation, sandblasting, and thorough cleaning. 6. An electrode plate for use in a flat panel display, comprising a plate and at least one electrode which is adhered to at least one main surface of the plate, the electrode being made up of (a) a first electrode part which is adhered to the main surface of the plate and (b) a second electrode part which is adhered to the first electrode part so as to be in electrical contact with the first electrode part, characterized in that
of an end area of the second electrode part at a power supply point and an end area of the second electrode part opposite to the end area at the power supply point, at least the end area of the second electrode part opposite to the end area at the power supply point is adhered to the first electrode part with stronger adhesion than other areas of the second electrode part. 7. The electrode plate of claim 6,
wherein the plate is a glass plate, and the second electrode part contains Ag. 8. The electrode plate of claim 7,
wherein the main surface of the plate to which the electrode is adhered has been coated with a film made of a material selected from the group consisting of silicon oxide and nitrogen oxide. 9. The electrode plate of claim 6,
wherein at least the end area of the second electrode part opposite to the end area at the power supply point is wider than the other areas of the second electrode part, so as to be adhered to the first electrode part with stronger adhesion than the other areas of the second electrode part. 10. The electrode plate of claim 6,
wherein at least the end area of the second electrode part opposite to the end area at the power supply point is adhered to the first electrode part using an adhesive, so as to be adhered to the first electrode part with stronger adhesion than the other areas of the second electrode part. 11. The electrode plate of claim 10,
wherein the adhesive contains glass. 12. The electrode plate of claim 6,
wherein the second electrode part contains glass, and at least the end area of the second electrode part opposite to the end area at the power supply point contains a higher proportion of glass than the other areas of the second electrode part. 13. The electrode plate of claim 6,
wherein the electrode is a display electrode that is made up of a transparent electrode and a bus line respectively as the first electrode part and the second electrode part, and the electrode plate is a front panel glass having a plurality of pairs of display electrodes in a gas discharge panel. 14. A gas discharge panel, comprising the front panel glass of claim 13, having the plurality of pairs of display electrodes.
15. An electrode plate manufacturing method for use in a flat panel display, comprising an electrode forming step for forming at least one electrode and adhering the electrode to at least one main surface of a plate using a thin film formation method or a thick film formation method, characterized in that
in the electrode forming step, of an end area of the electrode at a power supply point and an end area of the electrode opposite to the end area at the power supply point, at least the end area of the electrode opposite to the end area at the power supply point is adhered to the main surface of the plate with stronger adhesion than other areas of the electrode. 16. The electrode plate manufacturing method of claim 15,
wherein at least the end area of the electrode opposite to the end area at the power supply point is adhered to part of the main surface of the plate which has been subjected to at least one surface treatment. 17. The electrode plate manufacturing method of claim 16,
wherein the surface treatments are selected from the group consisting of ultraviolet irradiation, plasma irradiation, sandblasting, and thorough cleaning. 18. The electrode plate manufacturing method of claim 15,
wherein at least the end area of the electrode opposite to the end area at the power supply point is adhered to the main surface of the plate using an adhesive. 19. The electrode plate manufacturing method of claim 15,
wherein the electrode is made up of a first electrode part and a second electrode part, the electrode forming step including: a first electrode part forming step for adhering the first electrode part to the main surface of the plate, and a second electrode part forming step for adhering the second electrode part to the first electrode part so that the second electrode part is in electrical contact with the first electrode part, wherein in the second electrode part forming step, of an end area of the second electrode part at the power supply point and an end area of the second electrode part opposite to the end area at the power supply point, at least the end area of the second electrode part opposite to the end area at the power supply point extends beyond the first electrode part and is directly adhered to the main surface of the plate, with stronger adhesion than any of the adhesion of the first electrode part to the main surface of the plate and the adhesion of other areas of the second electrode part to the first electrode part. 20. The electrode plate manufacturing method of claim 15,
wherein the electrode forming step includes an electrode material applying step for applying an electrode material which contains glass to the main surface of the plate so that at least the end area of the electrode opposite to the end area at the power supply point contains a higher proportion of glass than the other areas of the electrode. 21. The electrode plate manufacturing method of claim 19,
wherein the plate is a glass plate, and the first electrode part and the second electrode part are respectively a transparent electrode and a bus line that contains Ag. 22. The electrode plate manufacturing method of claim 15 for manufacturing a front panel glass having a plurality of pairs of display electrodes in a gas discharge panel.
23. A electrode plate manufacturing method for use in a flat panel display, that forms at least one electrode made up of a first electrode part and a second electrode part on a plate, comprising (a) a first electrode part forming step for adhering the first electrode part to at least one main surface of the plate, and (b) a second electrode part forming step for adhering the second electrode part to the first electrode part so that the second electrode part is in electrical contact with the first electrode part, characterized in that
in the second electrode part forming step, of an end area of the second electrode part at a power supply point and an end area of the second electrode part opposite to the end area at the power supply point, at least the end area of the second electrode part opposite to the end area at the power supply point is adhered to the first electrode part with stronger adhesion than other areas of the second electrode part. 24. The electrode plate manufacturing method of claim 23,
wherein at least the end area of the second electrode part opposite to the end area at the power supply point is adhered to the first electrode part using an adhesive. 25. The electrode plate manufacturing method of claim 23,
wherein the second electrode part contains glass, and in the second electrode part forming step, an electrode material which contains glass is applied to the first electrode part so that at least the end area of the second electrode part opposite to the end area at the power supply point contains a higher proportion of glass than the other areas of the second electrode part. 26. The electrode plate manufacturing method of claim 23,
wherein the plate is a glass plate, and the first electrode part and the second electrode part are respectively a transparent electrode and a bus line that contains Ag. 27. The electrode plate manufacturing method of claim 23 for manufacturing a front panel glass having a plurality of pairs of display electrodes in a gas discharge panel.
28. An electrode plate manufacturing method for use in a flat panel display, comprising an electrode forming step for forming at least one electrode and adhering the electrode to at least one main surface of a plate,
the electrode forming step including: an applying step for applying an electrode material which contains glass to the main surface of the plate; and a firing step for firing the applied electrode material, wherein the firing step is performed so that, of an end area of the electrode at a power supply point and an end area of the electrode opposite to the end area at the power supply point, at least the end area of the electrode opposite to the end area at the power supply point is adhered to the main surface of the plate with stronger adhesion than other areas of the electrode. 29. An electrode plate manufacturing method for use in a fiat panel display, that forms at least one electrode made up of a first electrode part and a second electrode part on a plate, comprising (a) a first electrode part forming step for adhering the first electrode part to at least one main surface of the plate, and (b) a second electrode part forming step for adhering the second electrode part to the first electrode part so that the second electrode part is in electrical contact with the first electrode part,
the second electrode part forming step including: an applying step for applying an electrode material which contains glass to the first electrode part; and a firing step for firing the applied electrode material, wherein the firing step is performed so that, of an end area of the second electrode part at a power supply point and an end area of the second electrode part opposite to the end area at the power supply point, at least the end area of the second electrode part opposite to the end area at the power supply point is adhered to the first electrode part with stronger adhesion than other areas of the second electrode part. 30. The electrode plate of claim 6,
wherein at least the end area of the second electrode part opposite to the end area at the power supply point is adhered to part of the main surface of the plate which has been subjected to at least one surface treatment. 31. The electrode plate manufacturing method of claim 28 further including the step of effecting a surface treatment of the main surface of the plate opposite to an end area at the power supply point by eroding the surface of the plate to increase adhesion of the electrode material prior to the applying step.
32. The electrode plate of claim 30,
This is a divisional application of U.S. Ser. No. 09/729,590, filed on Dec. 4, 2000, now U.S. Pat. No. 6,603,262.
DESCRIPTION OF THE PREFERRED EMBODIMENT(S) 1. First Embodiment 1.1. Construction of a PDP
FIG. 1 is a partial perspective and sectional view showing a main construction of a surface discharge AC plasma display panel 10 (hereafter simply referred to as �PDP 10�), according to the first embodiment of the invention. In the drawing, a direction z corresponds to the depth of the PDP 10, and a plane xy corresponds to a plane parallel with the panel surface of the PDP 10. As an example, the PDP 10 is built in a size that complies with the 42-inch class VGA standards, though other sizes are also applicable.
On the inner surface of a back panel glass 27 which forms the base of the back panel 26, a plurality of address electrodes 28 having a thickness of 5 μm and a width of 60 μm are arranged in the direction y such that each electrode extends in the direction x. Here, adjacent address-electrodes 28 have a fixed pitch (about 150 μm). The plurality of address electrodes 28 are separately connected to the panel drive circuit so as to be supplied with power individually. Accordingly, when a particular address electrode 28 is supplied with power, address discharge occurs between the address electrode 28 and a particular X electrode 28.
2. Second Embodiment FIG. 6 is a partial top view of display electrodes 22 and 23 in the second embodiment of the invention. In this embodiment, before the formation of the dielectric layer 24, the end 221 a (231 a) of the bus line 221 (231) is adhered to the surface of the transparent electrode 220 (230) more firmly than the other parts of the bus line 221 (231), by using the adhesive 221 fg (231 fg). This adhesive 221 fg (231 fg) is made of the same glass material used for the dielectric layer 24.
3. PDP Manufacturing Method An example method for manufacturing the PDP 10 in the above embodiments and variations is described below.
Next, a paste is created from a mixture of a powdery glass substance (e.g. PbO glass) and an organic binder solution (a mixture of 0.2 wt % of homogenol as a dispersant, 2.5 wt % of dibutyl phthalate as a plasticizer, and 45 wt % of ethyl cellulose) at the weight ratio of 55:45. This paste is applied to the entire surface of the front panel glass 21 on which the plurality of pairs of display electrodes 22 and 23 have been arranged, and then fired at 520� C. for 10 minutes. As a result, the dielectric layer 24 with a thickness of about 30 μm is formed.
Then, the barrier ribs 30 with a height of about 120 μm are formed in the intervals (approximately 150 μm) between neighboring address electrodes 28 on the surface of the dielectric film 29, using the same kind of glass material as was used for the dielectric film 29. The barrier ribs 30 can be formed, for example, by repeatedly applying a paste containing the aforementioned glass material by screen painting, and then firing the result.
(YxGd1−x)BO3:Eu3+ Green phosphor:
BaMgAl10O17:Eu3+(or BaMgAl14O23:Eu3+)
Here, a powder a particle diameter of which is about 3 μm may be used as each of the phosphor materials. Though there are several methods of applying phosphor ink, this invention employs a known method called �meniscus� that discharges phosphor ink from an ultrafine nozzle while forming a meniscus (a bridge by surface tension). This method is effective to coat a desired surface evenly with phosphor ink. However, the invention need not be limited to such a method, and other methods such as screen printing are applicable.
The manufactured front panel 20 and back panel 26 are fixed together with sealing glass. The inside of the discharge spaces 38 is exhausted to form a high vacuum (about 8�10−7 Torr). The discharge spaces 38 are then filled with a discharge gas of Ne�Xe, He�Ne�Xe, or He�Ne�Xe�Ar, at a certain pressure (500-760 Torr). This completes the PDP 10.
4. Other Considerations Though the embodiments describe an example of applying the invention to both of the display electrodes 22 and 23, the invention may instead be applied to only one of the display electrodes 22 and 23. To enhance the effects of the invention, however, it is desirable to apply the invention to both of the display electrodes 22 and 23.
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