Electric lamp and discharge devices – With gas or vapor – Three or more electrode discharge device
Reexamination Certificate
1998-07-01
2001-07-03
Patel, Vip (Department: 2879)
Electric lamp and discharge devices
With gas or vapor
Three or more electrode discharge device
C313S581000, C313S585000, C313S586000
Reexamination Certificate
active
06255777
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a plasma display panel device and method of fabricating the same, and more particularly, to a plasma display panel device having micro-channels or capillaries connecting an electrode. Although the present invention is suitable for a wide scope of applications, it is particularly suitable for generating a high density ultraviolet (UV) emission, thereby significantly reducing driving voltage and turn-on time.
2. Discussion of the Related Art
Plasma display panel (“PDP”) devices use gas discharges to convert electric energy into light. Each pixel in a PDP device corresponds to a single gas-discharge site and the light emitted by each pixel is controlled electronically by the video signal that represents the image.
Many structures for color plasma displays have been suggested since the 1980's, but only three are still in contention: the alternating current matrix sustain structure; the alternating current coplanar sustain structure; and the direct current with pulse-memory drive structure.
Generally, PDP is the choice in flat panel display technologies for large size display devices typically larger than 40″ diagonal. Extensive research toward the PDP devices has been done to increase brightness, lower driving voltage, and reduce response time of the devices since a proto-type of PDP has been developed. These goals can be achieved by maximizing the efficiency of the UV emission from the glow discharge.
Most of the PDP devices utilizes a high pressure AC barrier type discharge. One example of the conventional high pressure AC barrier type discharge is disclosed in U.S. Pat. No. 5,701,056as shown in
FIG. 1. A
conventional plasma display panel device has a transparent front substrate
101
and a rear substrate
110
facing each other. A plurality of transparent electrodes
102
are formed on each of the front substrate
101
, and a bus electrode
111
is on each of the transparent electrodes
102
. The transparent electrode
102
and the bus electrodes
111
are covered with a thick insulating layer
103
and a protection layer
104
in this order. The transparent insulating layer
103
and the protection layer
104
comprises lead glass having a low fusing point and magnesium oxide (MgO).
A plurality of data electrodes
108
are formed on the rear substrate
110
. A plurality of chambers
112
are defined by first, second, and third partition walls
105
a
,
105
b
(not shown), and
106
, and the first and third partition walls have widths W
H
and W
D
, respectively. A white-color insulating layer
107
is formed on the rear substrate
110
including the data electrode
108
. Further, a fluorescent material
109
is formed on the third partition wall
106
and the white-color insulating layer
107
.
U.S. Pat. No. 5,414,324 has suggested another structure for generating a high pressure glow discharge plasma as shown in FIG.
2
. An electrode
10
is made of copper plate having a representative square plan dimension of 25 cm×25 cm. The integral metallic units comprising plates
10
and tubing
11
are covered with a high dielectric insulating layer
14
. In this structure, the dielectric insulating layer
14
is to prevent a high current arc mode from the discharge. However, the dielectric insulating layer
14
consumes a large amount of the electric field. Moreover, a significant fraction of the electric field is applied across the dielectric insulating layer, so that the electric field cannot be applied effectively throughout the PDP device.
SUMMARY OF THE INVENTION
Accordingly, the present invention is directed to a plasma display panel device and method of 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 high density UV emission in a PDP operated in an AC or DC mode.
Another object of the present invention is to provide reduced driving voltage and short response time.
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, a plasma display panel device includes first and second substrates, a first electrode on the first substrate, a second electrode on the second substrate, a pair of barrier ribs connecting the first and second substrates, an electric charge chamber between the first and second substrates defined by the barrier ribs, and a dielectric layer on the first substrate including the first electrode, the dielectric layer having a channel to provide a steady state UV emission in the electric charge chamber.
In another aspect of the present invention, a plasma display panel device includes first and second substrates, a first electrode on the first substrate, a second electrode on the second substrate, a pair of barrier ribs connecting the first and second substrates, an electric charge chamber between the first and second substrates, and a UV-visible photon conversion layer between the first and second substrate, the UV-visible photon conversion layer having at least one channel to provide a steady state UV emission in the electric charge chamber.
In another aspect of the present invention, a plasma display panel device includes first and second substrates, a first electrode on the first substrate, a first dielectric layer on the first electrode, a second electrode on the first dielectric layer, a second dielectric layer on the second electrode, a third electrode on the second substrate, a UV-visible photon conversion layer on the second substrate including the third electrode, a pair of barrier ribs connecting the first and second substrates, and first and second electric charge chambers between the first and second substrates defined by the barrier ribs.
In another aspect of the present invention, a plasma display panel device includes first and second substrates, first and second electrodes on the first substrate, a first dielectric layer on the first substrate including the first and second electrodes, a third electrode on the first dielectric layer, a fourth electrode on the second substrate layer, a UV-visible photon conversion layer on the second substrate including the fourth electrode, a pair of barrier ribs connecting the first and second substrates, a first electric charge chamber between the first and second substrates defined by the barrier ribs, and a second electric charge chamber between the first and second electrodes in the first dielectric layer.
In another aspect of the present invention, a method of fabricating a plasma display panel device having first and second substrates, comprising the steps of forming a first electrode on the first substrate, forming a dielectric layer on the first substrate including the first electrode, and forming at least one channel in the dielectric layer to expose the first electrode.
In a further aspect of the present invention, a method of fabricating a plasma display panel device having first and second substrates, comprising the steps of forming a first electrode on the first substrate, forming a UV-visible photon conversion layer on the first substrate including the first electrode, and forming at least one channel in the UV-visible photon conversion layer to expose the first electrode.
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.
REFERENCES:
patent: 3921021 (1975-11-01), Glaser et al.
patent: 3983445 (1976-09-01), Yasuda
patent: 5414324
Kim Seong I.
Kunhardt Erich E.
Guharay Karabi
Morgan & Lewis & Bockius, LLP
Patel Vip
Plasmion Corporation
LandOfFree
Capillary electrode discharge plasma display panel device... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Capillary electrode discharge plasma display panel device..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Capillary electrode discharge plasma display panel device... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2556929