WO2012086913A1

WO2012086913A1 - Pdp panel for a multi-screen display device and method for forming same

Info

Publication number: WO2012086913A1
Application number: PCT/KR2011/008204
Authority: WO
Inventors: 정상열
Original assignee: 주식회사 오리온
Priority date: 2010-12-22
Filing date: 2011-10-31
Publication date: 2012-06-28
Also published as: CN103210466A; KR20120070774A

Abstract

A PDP panel for a multi-screen display device and a method for forming same are disclosed. The PDP panel is formed by integrally coupling a front unit and a back unit which face each other. The gap between the first transparent electrode of the X-electrode and the second transparent electrode of the Y-electrode on the front unit in the peripheral cell line of the display region is smaller than the gap between the first transparent electrode of the X-electrode and the second transparent electrode of the Y-electrode in the standard cell line of the display region, so as to decrease the discharge voltage in the peripheral cell line. Said configuration prevents abnormal discharges from being generated in the peripheral cells which are disposed in the display region and correspond to the seam region, so that the peripheral cells can operate normally.

Description

PD Panel for Multi-Screen Display and Formation Method

The present invention relates to display technology, and more particularly, to a PD panel for a multi-screen display device and a method of forming the same.

In general, when a large image is to be displayed using a PD panel, a plurality of unit panels are arranged on the top, bottom, left, and right sides to form a multi-screen. In a multi-screen display device in which a plurality of unit panels are connected to form a single screen, it is important to ensure continuity of the screen by minimizing a seam area, which is a non-light emitting area, between unit panels.

Conventionally, in consideration of such a problem, the display area of the unit panel for the multi-screen display device is extended to the outermost part as much as possible and the seam area between the unit panels is minimized, so that the final multi-screen display device has a natural screen continuity. It is trying to increase the.

However, when the plurality of unit panels are continuously installed, the outermost cells of the display area may belong to the seam area, and the neighboring unit panels may be disposed between the neighboring unit panels. In the outermost cells belonging to the seam area, the sealing part formed in the seam area affects the cell and thus causes abnormal discharge. This phenomenon has a problem of causing off-cells to cause defects on the screen.

The present invention is proposed to solve the problems of the prior art as described above, by solving the mis-discharge, abnormal discharge occurring in the outer cells of the display area corresponding to the seam (Seam) area, the cells operate normally An object of the present invention is to provide a PD panel for a multi-screen display device and a method of forming the same.

A PD panel for a multi-screen display device according to the present invention comprises: a front unit comprising a front substrate, an X-electrode composed of a transparent electrode and a bus electrode, a Y-electrode, a front dielectric layer, and a protective layer systematically combined; In a PD panel for a multi-screen display device in which a back panel, a partition structure, a phosphor, a rear dielectric layer, and a back unit systematically combined with an address electrode face each other and are integrally coupled to each other, the X-electrode of the outer cell line of the display area The gap between the first transparent electrode and the second transparent electrode of the Y-electrode is narrower than the gap between the first transparent electrode of the X-electrode and the second transparent electrode of the Y-electrode positioned in the standard cell line of the display area. It is characterized by.

The line width of one of the first and second transparent electrodes positioned in the outer cell line of the display area may be extended to reduce the distance between the two transparent electrodes as compared with the case of other cell lines.

By increasing the line widths of both the first transparent electrode and the second transparent electrode positioned in the outer cell line of the display area, the distance between the two transparent electrodes can be reduced as compared with the case of other cell lines.

On the other hand, the method for forming a PDP panel for a multi-screen display device according to the present invention is a front unit by systematically combining the front substrate, X-electrode, each of which is composed of a transparent electrode and a bus electrode, Y-electrode, front dielectric layer, protective layer Forming a front unit forming process; Forming a rear unit by systematically combining a rear substrate, a partition structure, a phosphor, a rear dielectric layer, and an address electrode; In the method of forming a PD panel for a multi-screen display device comprising the step of coupling the front unit and the rear unit integrally, when forming the front unit in the front unit forming process, the outer cell of the display area The distance between the first transparent electrode of the X-electrode and the second transparent electrode of the Y-electrode in the line is defined as the first transparent electrode of the X-electrode and the second transparent electrode of the Y-electrode positioned in the standard cell line of the display area. The discharge voltage of the outer cell line is reduced by forming a narrower gap than the gap between the cells.

According to the PDP panel for a multi-screen display device of the present invention and a method of forming the same, an error discharge or abnormality of the cells is improved by improving the transparent electrode structure of the outer cells corresponding to the seam area among the cells constituting the display area. Discharge may be solved to induce normal operation, and defects may be prevented from occurring on the screen due to abnormal discharge of some cells.

1 is a plan view conceptually illustrating a structure of a PD panel for a multi-screen display device according to an embodiment of the present invention.

2 is a perspective view illustrating a structure of a PD panel for a multi-screen display device according to an exemplary embodiment of the present invention.

3 is a plan view conceptually illustrating a transparent electrode structure of a cell according to an embodiment of the present invention.

4 is a cross-sectional view conceptually illustrating a transparent electrode structure of a cell according to an embodiment of the present invention.

Hereinafter, a PDP panel for a multi-screen display device and a method of forming the same will be described in detail with reference to the accompanying drawings.

(a), (b) compares the structure of the PDPC panel for a single screen and the PDPC panel used for a single screen.

In general PD panel, as shown in (a), the front substrate 10 and the rear substrate 20 are integrally coupled to each other through a sealing line L10, and are piled up outside the display area A10. The dummy region A20 in which the partition wall and the like are located is formed. In the dummy area A20, an exhaust hole 30 for exhaust and gas injection is formed.

Unlike a general PD panel in which a dummy area A 20 of a predetermined space is left outside the display area A 10, a PD panel for a multi-screen display device is connected to a seal line L 100 as shown in (b). The combined size of the front substrate 110 and the rear substrate 210 is the same, and there is no dummy region outside the display area A100.

That is, the PDPC panel for the multi-screen display device is a structure in which a substrate is cut directly outside the display area A100 due to a structural characteristic of minimizing the seam area between the unit panels to increase the continuity of the screen. Since the display area A100 is extended to the outermost part, there is almost no space left in the periphery. In the case of the multi-screen method, the exhaust hole 310 is formed on the display area A100 to minimize the seam area. In order to fill the discharge gas in the panel, a sealing line L100 is formed on the front substrate 110 and the rear substrate 210 to maintain the airtightness between the front substrate 110 and the rear substrate 210. After evacuating the inside of the panel through the exhaust hole 310, the discharge gas is filled.

As described above, when a plurality of PD panels are connected to each other due to the structural characteristics of the multi-screen system, the cells in the outer part of the portion belonging to the seam area between neighboring PD panels are sealed to the sealing unit L100 or the like. It can be affected and cause abnormal discharge. Accordingly, the PDPC panel for the multi-screen display device according to the embodiment forms a transparent electrode structure of the cells located in the outer portion A120 that is likely to belong to the seam region of the display area A100, forming another portion A110. This problem is solved by configuring the cells differently.

As shown in FIG. 2, the PDP panel for the multi-screen display device is configured to systematically combine the front unit 100 and the rear unit 200 which are integrally coupled to face each other.

Here, the front unit 100 has a configuration in which the front substrate 110, the X-electrode 120 and the Y-electrode 130, the front dielectric layer 140, the protective layer 150, etc. are systematically combined. .

The front substrate 110 is configured such that the X-electrode 120 and the Y-electrode 130 are paired to maintain light emission by mutual discharge in one cell. The X-electrode 120 and the Y-electrode 130 each include

transparent electrodes

121 and 131 formed of a transparent indium tin oxide (ITO) material and

bus electrodes

122 and 132 made of a metal material. The X-electrode 120 and the Y-electrode 130 are covered by the front dielectric layer 140 which limits the discharge current and insulates the electrode pairs. A protective film 150 such as a magnesium oxide (MgO) film is formed on the top surface of the dielectric layer 140 to facilitate discharge conditions.

The rear unit 200 includes a rear substrate 210, an address electrode 220, a partition structure 230, a rear dielectric layer 240, R (Red), G (Green), and B (Blue) phosphor 250. The back takes a systematic combination.

On the rear substrate 210, the address electrodes 220 are arranged in a direction perpendicular to the X-electrode 120 and the Y-electrode 130, and a partition structure for forming a plurality of discharge spaces, that is, cells, is formed. 230 is disposed in parallel with the address electrode 220. A rear dielectric layer 240 is formed on an upper surface thereof, and R, G, and B phosphors 250 that emit visible light for displaying an image upon address discharge are coated on an upper surface of the rear dielectric layer 240.

As described above, the PDP panel for the multi-screen display device is a combination of the front unit 110 formed through the front unit forming process and the rear unit 200 formed through the rear unit forming process. A plurality of unit panels having such a structure may be connected to each other to configure a multi-screen display apparatus.

In particular, as illustrated in FIG. 1, the PDPD panel for a multi-screen display device is a cell line positioned in an outer portion A120 of the display area A100. The gap GAP between the pair of

transparent electrodes

121 and 131 is adjusted to be different from the cell lines of the other part A110. Referring to FIGS. 3 and 4, the structure of the transparent electrodes of the outer cells is as follows.

3 is a plan view conceptually illustrating a transparent electrode structure of a cell according to an embodiment of the present invention, and FIG. 4 is a cross-sectional view conceptually illustrating a transparent electrode structure of a cell according to an embodiment of the present invention.

The front substrate 110 is configured by pairing the X-electrode 170 and the Y-electrode 180. The X-electrode 170 includes a first transparent electrode 171 and a bus electrode 172 having a line width smaller than that of the first transparent electrode 171 and formed at one edge of the first transparent electrode 171. do. Similarly, the Y-electrode 180 includes a second transparent electrode 181 and a bus electrode 182 on one edge of the second transparent electrode 181. A black layer is formed between the

transparent electrodes

171 and 181 and the

bus electrodes

172 and 182 to improve contrast.

The

transparent electrodes

171 and 181 of the X-electrode 170 and the Y-electrode 180 on the front substrate 110 have the same interval GAP1 as shown in FIG. 3A throughout the display area of the PDP panel. Is formed. However, in the outer cell line of the display area of the PDP panel, the gap between the first transparent electrode 171 of the X-electrode 170 and the second transparent electrode 181 of the Y-electrode 180 is as shown in (b). Narrower than the gap GAP1 between the first transparent electrode 171 of the X-electrode 170 and the second transparent electrode 181 of the Y-electrode 180 where the GAP2 is located in a standard cell line of another portion. Is formed.

This is to reduce (discharge) the gap between the

transparent electrodes

171 and 181 formed on the front substrate 110 in the outermost cell line of the display area to lower the discharge voltage and reduce the abnormal discharge phenomenon. According to an embodiment, the structure of reducing the gap between the transparent electrodes may be applied from the outermost cell line and the outermost neighboring cell to the second to Nth (N is a natural number) cell lines. According to this structure, it is possible to solve the problem that the outer cells included in the seam area are turned off or abnormally discharged (erased, overdischarged, etc.) without being normally operated.

4A illustrates a gap between the first transparent electrode 171 of the X-electrode 170 and the second transparent electrode 181 of the Y-electrode 180 in a standard cell line forming almost the entire display area. GAP1) is illustrated.

In comparison, the first transparent electrode 171 and the Y of the X-electrode 170 positioned in the outer cell line of the display area to prevent abnormal discharge by reducing the discharge voltage generated in the seam area. The gap GAP2 between the second transparent electrodes 181 of the electrode 180 is relatively narrow, such as (b) or (c). Here, the outer cell line to which the spaced transparent electrode structure is applied may be the outermost cell line of the display area. Alternatively, according to the exemplary embodiment, the transparent electrode structure in which the gap is reduced may be applied to the outermost cell line of the display area as well as one or more cell lines adjacent thereto.

(b) extends the line width of one transparent electrode among the first transparent electrode 171 and the second transparent electrode 181 positioned in the outer cell line of the display area, thereby providing a gap between the two

transparent electrodes

171 and 181. The case where GAP2) is reduced compared to other cell lines is illustrated. (c) extends the line widths of both the first transparent electrode 171 and the second transparent electrode 181 positioned in the outer cell line of the display area, and thus the gap G2 between the two

transparent electrodes

171 and 181. Illustrates a case in which is reduced compared to other cell lines.

The PDP panel for the multi-screen display device and the method for forming the same of the present invention are not limited to the above-described embodiments, and can be modified in various ways within the scope of the technical idea of the present invention.

Claims

A front unit comprising an X-electrode, a Y-electrode, a front dielectric layer, and a protective layer, each of which comprises a front substrate and a transparent electrode and a bus electrode;

In a PD panel for a multi-screen display device in which a rear panel, a partition structure, a phosphor, a rear dielectric layer, and a rear unit systematically combined with an address electrode face each other and are integrally combined,

The distance between the first transparent electrode of the X-electrode and the second transparent electrode of the Y-electrode in the outer cell line of the display area is the first transparent electrode of the X-electrode and the Y- of the X-electrode positioned in the standard cell line of the display area. The PD panel for a multi-screen display device, characterized in that formed narrower than the gap between the second transparent electrode of the electrode.
The method of claim 1,

The line width of one transparent electrode among the first transparent electrode and the second transparent electrode positioned in the outer cell line of the display area is extended, and the distance between the two transparent electrodes is reduced compared to the case of other cell lines. PD Panels for display devices.
The method of claim 1,

The line width of both the first transparent electrode and the second transparent electrode positioned in the outer cell line of the display area is extended, so that the distance between the two transparent electrodes is reduced as compared with the case of other cell lines. PD Panels.
A front unit forming process of forming a front unit by systematically combining an X-electrode, a Y-electrode, a front dielectric layer, and a protective layer, each of which comprises a front substrate, a transparent electrode and a bus electrode;

Forming a rear unit by systematically combining a rear substrate, a partition structure, a phosphor, a rear dielectric layer, and an address electrode;

In the method of forming a PD panel for a multi-screen display device comprising the step of coupling the front unit and the rear unit integrally,

When the front unit is formed in the front unit forming process, the distance between the first transparent electrode of the X-electrode and the second transparent electrode of the Y-electrode in the outer cell line of the display area is defined as the standard cell of the display area. The PDP panel of the multi-screen display device is formed to be narrower than the distance between the first transparent electrode of the X-electrode positioned in the line and the second transparent electrode of the Y-electrode to reduce the discharge voltage of the outer cell line. Forming method.