Electric lamp and discharge devices – With gas or vapor – Three or more electrode discharge device
Reexamination Certificate
1998-10-22
2002-01-15
Patel, Nimeshkumar D. (Department: 2879)
Electric lamp and discharge devices
With gas or vapor
Three or more electrode discharge device
C313S586000, C313S587000, C445S024000
Reexamination Certificate
active
06339292
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a color plasma display panel (hereafter called as PDP), and more particularly, to a color PDP with an arc discharge electrode; and a method for fabricating the same.
2. Background of the Related Art
In general, the PDP is the most suitable for a flat display panel because the PDP has a fast data display rate and a large sized panel is available with easy. The PDP is suggested to an AC type PDP or DC type PDP both with two electrodes, of which it is known that a surface discharge type AC PDP is the most appropriate for a color display.
FIG. 1
illustrates a cross section of a related art surface discharge type PDP cell, with a direction of discharge electrodes
13
on a first insulating substrate
11
shown rotated by 90° for convenience of understanding.
Referring to
FIG. 1
, the related art PDP is provided with one pair of discharge electrodes
13
arranged on the same plane of the first insulating substrate
11
. And, there is a top panel provided with a first, and a second dielectric films formed on an entire surface of the first insulating substrate
11
inclusive of the first discharge electrodes
13
for limiting a discharge current, and an MgO protection film
16
on an entire surface. Each of the discharge electrodes
13
has a metal electrode
10
formed at a region thereof There is an address electrode
17
on a region of a second insulating substrate
12
in a direction perpendicular to a direction of the discharge electrodes
13
on the top panel. There are barriers
19
between the address electrodes
17
for providing different colors and fluorescent films coated on the barriers
19
and the address electrodes
17
, thereby forming a bottom panel. The first insulating substrate
11
in the top panel and the second insulating substrate
12
in the bottom panel are bonded together with Frit glass(not shown), and then, a mixture of gases are filled in discharge regions
20
, which are then sealed tightly.
Upon application of a driving voltage between one pair of discharge electrodes
13
in the aforementioned related art PDP, a surface discharge
20
a
is occurred at the discharge region
20
of surfaces of the first, and second dielectric films
14
and
15
by the filled mixture gas, to emit ultra-violet(UV) rays. The UV ray excites the fluorescent film
18
, to generate a visible light, displaying R(Red), G(Green), and B(Blue) colors depending on the fluorescent film
18
. That is, spatial charges present in the discharge region
20
are accelerated by the driving voltage, make the mixture gas filled in the discharge region
20
at an internal pressure of 400~500 Torr, i.e., inert gas collision onto the fluorescent film
18
, to generate a vacuum UV ray in a Penning effect during the collision. The inert mixture gas has helium He as a major gas with addition of xenon Xe, and neon Ne gases. In other words, when the vacuum UV ray hits the fluorescent film
18
coated on the address electrode
17
and the barrier
19
, the fluorescent film
18
become luminant in a visible range. A color display is made by a combination of the R, G, B colors, defined at least three luminous regions.
However, because the related art PDP causes surface discharge according to the counter discharge principle upon application of a discharge initiation voltage between discharge electrodes, if a distance between the electrodes is made greater for having a larger discharge space, the discharge voltage rises, with a increased power consumption and a shortened lifetime.
SUMMARY OF THE INVENTION
Accordingly, the present invention is directed to a color PDP with an arc discharge electrode and a method for fabricating the same that substantially obviates one or more of the problems due to limitations and disadvantages of the related art.
An object of the present invention is to provide a color PDP which can cause a discharge with easy, enlarge a discharge space, and reduce dispersion of a discharge, for improving a discharge efficiency.
Another object of the present invention is to provide a color PDP which has a clear distinction between discharge regions and non-discharge regions, and can provide a difference of light paths for these two regions, for improving a contrast.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
To achieve these and other advantages and in accordance with the purpose of the present invention, as embodied and broadly described, the color plasma display panel with arc discharge electrodes includes a top panel having a plurality of pairs of arc discharge electrodes formed on a same plane with a first insulating substrate and a dielectric film on an entire surface of the pairs of arc discharge electrodes for restricting a discharge current, a bottom panel having barriers formed on the second insulating substrate for providing different colors between adjacent cells opposite to the arc discharge electrodes, address electrodes formed on inside surfaces of the barriers, and fluorescent material films one entire surfaces of the address electrodes, Frit glass for bonding the top and bottom panels, and a mixture gas filled, and sealed in discharge regions of cells.
In the other aspect of the present invention, there is provided a method for fabricating a color plasma display panel with arc discharge electrodes including the steps of (1) providing a first insulating substrate for displaying an image, (2) forming a first dielectric film on the first insulating substrate, (3) forming a recess of an arc form in a prescribed region of the first dielectric film, (4) forming one pair of arc discharge electrodes with a gap therebetween in the recess of an arc form in the first dielectric film, and (5) forming a second dielectric film on an entire surface inclusive to of the arc discharge electrodes, thereby completing fabrication of a top panel.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.
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patent: 5548421 (1996-08-01), Miyazaki
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patent: 6043604 (2000-03-01), Horiuchi et al.
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patent: 57212743 (1982-12-01), None
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patent: 05012991 (1993-01-01), None
Fleshner & Kim LLP
LG Electronics Inc.
Patel Nimeshkumar D.
Santiago Mariceli
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