KR100615335B1 - Double-sided display plasma display panel and manufacturing method thereof - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double-sided display plasma display panel and a method of manufacturing the same, wherein the double-sided display plasma display is provided with a discharge cell formed by a first surface, a second surface facing the first surface, and a side surface partitioning the discharge space. A panel, comprising: a first substrate having a structure etched in a portion corresponding to the first surface to form the first surface; A second substrate having an etched structure on a portion corresponding to the second surface to form the second surface; A partition wall partitioning the discharge space between the first substrate and the second substrate to form the side surface; A sustain discharge electrode pair having a common electrode and a scan electrode disposed on the partition wall; An address electrode disposed on the partition wall; And a phosphor layer applied to the etched structural portion of the first substrate and the etched structural portion of the second substrate.

Double sided display, plasma display panel, 3 electrode structure, 2 electrode structure

Description

Plasma display panel having double display faces and manufacturing method of the same

1 is an exploded perspective view illustrating a plasma display device having a one-side display plasma display panel.

2 is an exploded perspective view illustrating a plasma display device including a double-sided display plasma display panel according to an exemplary embodiment of the present invention.

3A to 3C are diagrams illustrating the structure of the discharge cells provided in the one-side display plasma display panel.

4A to 4B are diagrams illustrating the structure of discharge cells included in the double-sided display plasma display panel.

5A to 5B are diagrams illustrating a structure of a discharge cell included in a double-sided display plasma display panel according to an exemplary embodiment of the present invention.

6 is a view for explaining the components of the discharge cell provided in the double-sided display plasma display panel according to an embodiment of the present invention.

7A to 7D illustrate a shape of a discharge cell provided in a double-sided display plasma display panel according to a preferred embodiment of the present invention, and a discharge electrode surrounding the discharge cell.

8A to 8D are diagrams for describing extending directions of a common electrode, a scan electrode, an address electrode, an X electrode, and a Y electrode surrounding the side surface of the discharge cell.

9A to 9D are diagrams illustrating a first substrate, a partition sheet, and a second substrate separately in a double-sided display plasma display panel according to an exemplary embodiment of the present invention.

10A to 10B are diagrams illustrating a step of manufacturing a partition sheet having a three-electrode structure.

11A to 11C illustrate a method of manufacturing a double-sided display plasma display panel according to a preferred embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

102: front panel 104: partition wall

106: rear panel 108: chassis base

202: first substrate 204: partition wall sheet

206: second substrate 208: drive unit

302, 402, 602, 1102: first substrate

304, 404, 604, 1104: second substrate

306, 406, 606, 1006, 1106: bulkhead

308, 408, 608, 1108: phosphor layer

309: dielectric layer

310, 410, 610, 1010, 1110: protective film

312, 412, 512, 612, 712, 812, 1012, 1112: common electrode

413, 513, 613, 713, 813, 1113: X electrode

314, 414, 514, 614, 714, 814, 1014, 1114: scan electrode

415, 515, 615, 715, 815, 1115: Y electrode

316, 416, 516, 616, 716, 816, 1016, 1116: address electrode

The present invention relates to a double-sided display plasma display panel and a method of manufacturing the same. More specifically, a panel is fabricated using a double-sided display plasma display panel having improved substrate transmittance and luminous efficiency of visible light by applying a phosphor layer on a substrate having an etched structure and a partition sheet which is prepared in advance. The manufacturing method of the double-sided display plasma display panel of the system is provided.

Among the display apparatuses, there is a plasma display apparatus having a plasma display panel, which has recently attracted particular attention as a large flat panel display apparatus. Plasma display device is a process of encapsulating a discharge gas between the two substrates of the plasma display panel having a plurality of electrodes and applying a discharge voltage to generate a vacuum ultraviolet light by the discharge, and exciting the phosphor formed by the vacuum ultraviolet light in a predetermined pattern A device that displays a desired image using visible light generated by the.

The conventional plasma display panel has a front panel and a rear panel. The front panel includes a front substrate, a pair of sustain discharge electrodes including a common electrode and a scan electrode for generating sustain discharge, a dielectric layer, a protective film, and the like. The rear panel includes a back substrate, an address electrode, a dielectric layer, a partition wall, and a phosphor layer. (See FIG. 3A). The front substrate and the rear substrate are spaced apart from each other and face each other in parallel, and the space between the two substrates is divided by partition walls to form discharge cells as unit discharge spaces that cause discharge.

In the conventional plasma display panel structure, since the visible light generated during the phosphor excitation process passes through the front panel, it has to pass through a sustain discharge electrode pair, a dielectric layer, a protective film, etc. in addition to the front substrate, so that the overall front panel transmittance of the visible light is low. (Only about 60%).

In addition, in the discharge cell having the front side, the rear side, and the side surface, since the sustain discharge electrode pair is located in front of the discharge cell, the sustain discharge generated between the sustain discharge electrode pairs is biased only in the front side of the discharge space of the discharge cell. Since the discharge space was not effectively utilized, there was also a problem of low luminous efficiency.

In addition, the charged particles generated by the discharge on the front side cause an ion sputtering phenomenon that damages the phosphor layer located on the rear side, thereby causing a permanent afterimage.

In addition, since the conventional plasma display device is a single-side display display device (only viewing in the front direction described above) requires viewing on both sides (in addition to the front direction described above, viewing in the rear direction described above is also required). ) Has a problem that its utilization is limited.

In order to solve the above problems, an object of the present invention is to provide a double-sided display plasma display panel having an improved luminous efficiency by applying a phosphor layer on a substrate having an etched structure and a method of manufacturing the same.

In order to achieve the above object, the present invention provides a double-side display plasma display panel having a discharge cell formed by a first surface, a second surface facing the first surface, and a side surface partitioning the discharge space. A first substrate having a structure etched in a portion corresponding to the first surface to form the first surface; A second substrate having an etched structure on a portion corresponding to the second surface to form the second surface; A partition wall partitioning the discharge space between the first substrate and the second substrate to form the side surface; A sustain discharge electrode pair having a common electrode and a scan electrode disposed on the partition wall; An address electrode disposed on the partition wall; And a phosphor layer applied to the etched structural portion of the first substrate and the etched structural portion of the second substrate.

In the present invention, the partition wall may be made of a dielectric.

In addition, in the present invention, the barrier rib may include a dielectric layer used as an insulating coating of the common electrode, the scan electrode, and the address electrode.

In addition, in the present invention, the plasma display panel may further include a protective film for protecting the dielectric or the dielectric layer.

In addition, in the present invention, the shape in which the discharge cell is cut perpendicular to the side surface may have a circular structure.

Further, in the present invention, the shape in which the discharge cells are cut perpendicular to the side surface may have a polygonal structure of square, hexagon, or octagon.

In addition, in the present invention, the common electrode may be characterized by surrounding the side surface in parallel to the first surface and the second surface.

In addition, in the present invention, the common electrode may be arranged to extend in one direction parallel to the first substrate and the second substrate.

In addition, in the present invention, the scan electrode may be characterized by surrounding the side surface in parallel to the first surface and the second surface.

In addition, in the present invention, the scan electrode may be disposed to be parallel to the first substrate and the second substrate and extend in the same direction as an extension direction of the common electrode.

In addition, in the present invention, the address electrode may be disposed between the common electrode and the scan electrode, and may surround the side surface in parallel with the first and second surfaces.

In addition, in the present invention, the address electrode may be arranged to extend in a direction parallel to the first substrate and the second substrate and extending in the direction in which the common electrode extends and the direction in which the scan electrode extends. have.

In order to achieve the above object, the present invention is a double-sided display plasma display panel having a discharge cell formed by a first surface, a second surface facing the first surface and a side surface partitioning the discharge space, A first substrate having an etched structure on a portion corresponding to the first surface to form the first surface; A second substrate having an etched structure on a portion corresponding to the second surface to form the second surface; A partition wall partitioning the discharge space between the first substrate and the second substrate to form the side surface; An X electrode disposed on the partition wall; A Y electrode disposed on the partition wall; And a phosphor layer applied to the etched structural portion of the first substrate and the etched structural portion of the second substrate.

In the present invention, the partition wall may be made of a dielectric.

In addition, in the present invention, the partition wall may include a dielectric layer used as an insulating film of the X electrode and the Y electrode.

In addition, in the present invention, the plasma display panel may further include a protective film for protecting the dielectric or the dielectric layer.

In addition, in the present invention, the shape in which the discharge cell is cut perpendicular to the side surface may have a circular structure.

Further, in the present invention, the shape in which the discharge cells are cut perpendicular to the side surface may have a polygonal structure of square, hexagon, or octagon.

In addition, in the present invention, the X electrode may be characterized by surrounding the side surface in parallel to the first surface and the second surface.

In addition, in the present invention, the X electrode may be arranged to extend in one direction parallel to the first substrate and the second substrate.

In addition, in the present invention, the Y electrode may be characterized by surrounding the side surface in parallel to the first surface and the second surface.

In addition, in the present invention, the Y electrode may be arranged to extend in a direction parallel to the first substrate and the second substrate and intersect the extending direction of the X electrode.

In order to achieve the above object, the present invention, the first substrate to form a first surface of the unit discharge cell in the discharge space, the second substrate to form a second surface of the discharge cell facing the first surface, A method of manufacturing a double-sided display plasma display panel, comprising: a partition sheet having a discharge electrode and forming a side surface of the discharge cell; and a phosphor layer applied to the first and second surfaces, the method comprising: (a) the first display panel; Etching a portion of the substrate corresponding to the first surface and a portion of the second substrate corresponding to the second surface to form an etched structure; (b) applying the phosphor to the etched structural portion of the first substrate and the etched structural portion of the second substrate to form the phosphor layer; And (c) combining the first substrate having the etched structure, the partition sheet, and the second substrate having the etched structure. To provide.

In the present invention, the discharge electrode provided in the partition sheet may have a three-electrode structure of a common electrode, a scan electrode, and an address electrode.

In addition, in the present invention, the discharge electrode provided in the partition sheet may be characterized by having a two-electrode structure of an X electrode and a Y electrode.

In addition, in the present invention, the partition sheet is bonded in the step (c), the partition sheet is cut so that the shape parallel to the first surface and the second surface and perpendicular to the side has a circular structure It may be characterized by.

In the present invention, the partition sheet is bonded in the step (c), the partition sheet is a shape that is cut parallel to the first surface and the second surface and perpendicular to the side, rectangular, hexagonal or octagonal It may be characterized in that it is manufactured to have a polygonal structure of.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In describing the present invention, if it is determined that the detailed description of the related well-known configuration or function may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

1 is an exploded perspective view showing a plasma display device having a single-side display plasma display panel, and FIG. 2 is an exploded perspective view showing a plasma display device having a double-side display plasma display panel according to a preferred embodiment of the present invention.

As shown in FIG. 1, the plasma display apparatus including the one-side display plasma display panel includes a front panel 102, a partition 104, a rear panel 106, and a chassis base 108.

In the one-side display plasma display panel, since the visible light generated during the phosphor layer excitation process is transmitted to the viewer's view through the front panel 102, the structure can be viewed only on one side (the arrow direction side of the front panel side in FIG. 1). Has

The partition portion 104 partitions the discharge cells by limiting the discharge space, and serves to prevent cross talk between the discharge cells. In the related art, the partition walls 104 are stacked one by one from the rear panel 106. It was formed through the process. The chassis base 108 is equipped with a driving device of the plasma display panel and serves to apply a discharge voltage to the discharge electrodes disposed on the front panel 102 and the rear panel 106.

As shown in FIG. 2, in the plasma display device including the double-sided display plasma display panel according to the preferred embodiment of the present invention, the first substrate 202, the partition sheet 204, the second substrate 206, and the driving device unit are provided. 208.

In the double-sided display plasma display panel, since the visible light generated during the phosphor layer excitation process is transmitted through the first substrate 202 and the second substrate 206 and transmitted to the viewer's view, the double-sided display (arrow on the first substrate side in FIG. 2) is shown. Direction direction and arrow direction surface on the side of the second substrate).

The partition sheet 204 corresponds to the partition wall portion 104 in FIG. 1, which is a ceramic sheet method compared to the conventional partition wall 104 formed on the rear panel 106 through a lamination process. It is directly coupled to the first substrate 202 and the second substrate 206 by using. In the case of the lamination process, the partition walls 104 are formed by laminating one by one on the rear panel. However, when the ceramic sheet method is used, the partition walls 104 are manufactured in a separate sheet form. Since the barrier rib sheet 204 prepared in advance is directly coupled to the first substrate 202 and the second substrate 206, the manufacturing cost of the plasma display panel can be greatly reduced. The manufacturing method of the plasma display panel by the ceramic sheet method will be described in detail with reference to FIGS. 11A to 11C.

The driving unit 208 is a component to which the driving device of the plasma display panel is mounted. In FIG. 2, although the driving device is provided inside the pedestal-shaped case serving as a support, the plasma display device including the double-sided display plasma display panel according to the present invention is a double-sided display plasma display panel (a first substrate and It is possible to adopt a structure in which the driving device is mounted not only on the bottom side of the second substrate) but also on the top side, the right side, or the left side.

3A to 3C are diagrams illustrating the structure of the discharge cells provided in the one-side display plasma display panel.

3A to 3C, the discharge cell is formed by combining the front panel, the rear panel, and the partition wall, and includes a front surface (front substrate side), a rear surface (rear substrate side), and a side surface (bulk wall side).

In FIG. 3A and below, curved arrows represent vacuum ultraviolet (VUV), and straight arrows represent visible light.

As shown in FIGS. 3A to 3C, the front surface display plasma display panel includes a front substrate 302, a rear substrate 304, a partition 306, a phosphor layer 308, a dielectric layer 309, a protective film 310, and a common electrode ( 312, a scan electrode 314 and an address electrode 316.

In FIG. 3A, a front substrate 302, a sustain discharge electrode pair having a common electrode 312 and a scan electrode 314, a dielectric layer 309, and a protective film 310 are provided on a front panel, and the rear panel is provided with a rear surface. The structure of the discharge cell provided with the board | substrate 304, the address electrode 316, the dielectric layer 309, the partition 306, and the phosphor layer 308 is shown. In the discharge cell structure shown in FIG. 3A, in addition to the front substrate 302, the sustain discharge electrode pairs 312 and 314, the dielectric layer 309, the protective layer 310, etc., are visible in the visible light generated during the phosphor excitation process through the front panel. Since the front panel transmittance of visible light is low because it has to pass through, the sustain discharge generated between the sustain discharge electrode pairs 312 and 314 because the sustain discharge electrode pairs 312 and 314 are located in front of the discharge cell. Since the discharge space of the discharge cell is biased only on the front side, the discharge space may not be effectively utilized, and thus there is a problem of low luminous efficiency, and charged particles generated by the discharge on the front side damage the phosphor layer 308 located on the rear side. There was also a problem that a permanent afterimage is caused by the ion sputtering phenomenon.

3b to 3c is a structure that is proposed to solve the above problems.

In FIG. 3B, the front panel includes a front substrate 302, and the rear panel includes a rear substrate 304, an address electrode 316, a dielectric layer 309, a partition 306, and a phosphor layer 308. The structure of the discharge cell is provided with a sustain discharge electrode pair having a common electrode 312 and a scan electrode 314 and a protective film 310 on the partition wall 306 surrounding the side of the discharge cell. .

In FIG. 3C, a front substrate 302 is provided on a front panel, a rear substrate 304, a partition 306, and a phosphor layer 308 are provided on a rear panel, and a partition wall surrounding a side surface of a discharge cell ( The structure of the discharge cell provided with the sustain discharge electrode pair which has the common electrode 312 and the scanning electrode 314, the address electrode 316, and the protective film 310 on 306 is shown.

In the discharge cells having the structure shown in FIGS. 3B to 3C, since only the front substrate is disposed on the front panel, the visible light transmittance is good, and the sustain discharge electrode pairs 312 and 314 are arranged to surround the side of the discharge cell. Therefore, the light emitting efficiency is improved by the efficient use of the discharge space, and the direction of the electric field acting on the charged particles generated during the sustain discharge between the sustain discharge electrode pairs 312 and 314 is applied in such a manner that the phosphor layer is not damaged. This reduces the problem of ion sputtering.

However, since the plasma display device having the structure of the discharge cells shown in FIGS. 3B to 3C is a single-side display display device (viewable only in the front direction described above) and needs to be viewed from both sides (the front direction described above) In addition, as a display device of the case in which it is necessary to watch in the rearward direction described above, the utilization thereof is limited.

4A to 4B are diagrams illustrating the structure of discharge cells included in the double-sided display plasma display panel.

In the following FIGS. 4A to 5B, the discharge cell is formed by combining the first substrate, the second substrate, and the partition wall, and includes a first surface (first substrate side), a second surface (second substrate side), and a side surface ( Partition wall).

As shown in FIG. 4A, the double-sided display plasma display panel includes a first substrate 402, a second substrate 404, a partition 406, a phosphor layer 408, a protective film 410, a common electrode 412, The scan electrode 414 and the address electrode 416 are provided.

The discharge voltage to be displayed is selected by applying the address voltage to the address electrode 416 and the scan electrode 414, and the sustain discharge voltage is alternately applied to the common electrode 412 and the scan electrode 414 for the selected discharge cell. This causes discharge in the discharge space to generate vacuum ultraviolet rays in the plasma state. The generated vacuum ultraviolet rays excite the phosphor layer on the side of the first substrate and the phosphor layer on the side of the second substrate, and the visible light generated during the excitation of the phosphor layer passes through the first substrate 402 and is in the first surface direction. The plasma display device is transmitted to the viewer's view positioned in the direction of the first substrate side, and transmitted to the viewer's view positioned in the second surface direction (direction of the second substrate side) through the second substrate 410. Will operate as a double-side display device.

As a structure of a discharge cell of another double-sided display plasma display panel, FIG. 4B illustrates a structure of two electrodes (X electrode and Y electrode), unlike the structure of three electrodes (common electrode, scan electrode, and address electrode) as shown in FIG. 4A. Doing. As shown in FIG. 4B, a plasma display panel having a two-electrode structure includes a first substrate 402, a second substrate 404, a partition 406, a phosphor layer 408, a protective film 410, and an X electrode ( 413 and the Y electrode 415.

Also for a double-sided display plasma display panel having a two-electrode structure, its operation mechanism is similar to that of a double-sided display plasma display panel having a three-electrode structure, except that a waveform of an applied voltage driving the three-electrode structure and a two-electrode structure are driven. The waveform of the applied voltage is changed (described in FIG. 5B).

In the double-sided display plasma display panel, viewing of a normal screen corresponding to image data input from the outside is possible in either one of two sides (eg, the first side of the first substrate side). Since a screen in which left and right are reversed is displayed in (for example, the second surface direction on the second substrate side), the utilization area as a display device may be limited. However, for example, as in the case of outdoor advertisements, display sculptures or large indoor propaganda displays, it is highly useful as a display device that does not need to display letters or characters (a difficult to read when the left and right are reversed). That is, the effect can be fully exhibited by the plasma display apparatus provided with one double-sided display plasma display panel, without using two independent display apparatuses separately.

5A to 5B are diagrams illustrating a structure of a discharge cell included in a double-sided display plasma display panel according to an exemplary embodiment of the present invention.

5A to 5B, FIGS. 5A to 5B, in FIGS. 5A to 5B, a portion of the first substrate corresponding to the first surface of the discharge cell and a second substrate corresponding to the second surface of the discharge cell are illustrated in FIGS. 5A to 5B. It can be seen that there is a difference in that the part has an etched structure.

In the case where the portions of the first substrate and the second substrate corresponding to the first surface of the discharge cell and the second surface of the discharge cell have a planar structure (in the case of FIGS. 4A to 4B), Since the thickness of the substrate to which the visible light is to be transmitted becomes relatively thin, the substrate transmittance of the visible light is improved. In addition, when the phosphor is applied to the etched structure portion as compared with the case where the phosphor is applied to the planar structure portion (FIGS. 4A to 4B), the effective light emission area is increased so that the amount of visible light generated during the phosphor excitation process is increased. As a result, the luminous efficiency of the double-sided display plasma display panel is increased.

As such, the first and second substrate portions corresponding to the first and second surfaces of the discharge cells included in the double-sided display plasma display panel are etched to provide an etched structure on the substrate, thereby improving transmittance of visible light. It is a key feature of the present invention to increase luminous efficiency by increasing the amount of visible light generated in the phosphor layer.

5A shows a double-sided display plasma display panel having a three-electrode structure. In the double-sided display plasma display panel having such a structure, an image corresponding to external image data is applied by applying a voltage to the discharge space in the discharge cell through three electrodes of the common electrode 512, the scan electrode 514, and the address electrode 516. Will be displayed.

5B illustrates a double-sided display plasma display panel having a two-electrode structure, unlike FIG. 5A, which shows a three-electrode structure. The double-sided display plasma display panel having such a structure applies a voltage to the discharge space in the discharge cell through two electrodes of the X electrode 513 and the Y electrode 515.

In the two-electrode structure, the X electrode 513 and the Y electrode 515 play a role of the common electrode 512, the scan electrode 514, and the address electrode 516 in the three-electrode structure.

For example, in the three-electrode structure, all of the discharge cells are initialized by applying a reset pulse voltage of a ramp waveform to the scan electrode 514, an address pulse voltage is applied to the address electrode 516, and a scan pulse voltage to the scan electrode 514. The discharge cells to be displayed are selected by applying, and sustain discharge occurs in the preselected discharge cells by applying a sustain pulse voltage having a sustain discharge voltage to the common electrode 512 and the scan electrode 514 alternately.

In contrast, in the two-electrode structure, all discharge cells are initialized by applying a reset pulse voltage of a ramp waveform to the Y electrode 515, an address pulse voltage is applied to the X electrode 513, and a scan pulse to the Y electrode 515. A discharge cell to be displayed is selected by applying a voltage, a ground voltage is applied to the X electrode 513, and a sustain pulse voltage having a positive sustain discharge voltage and a negative sustain discharge voltage is alternately applied to the Y electrode 515. This causes the sustain discharge to occur in the preselected discharge cell.

In addition, the driving voltage waveform of the three-electrode structure and the driving voltage waveform of the two-electrode structure may have various embodiments, and the plasma display apparatus including the double-sided display plasma display panel according to the present invention includes such embodiments.

In addition, the double-sided display plasma display panel according to the present invention may be variously applied to a multi-electrode structure such as a four-electrode structure in addition to the three-electrode structure or the two-electrode structure.

6 is a view for explaining the components of the discharge cell provided in the double-sided display plasma display panel according to an embodiment of the present invention.

A double-sided display plasma display panel according to a preferred embodiment of the present invention includes a first substrate 602, a second substrate 604, a partition 606, a phosphor layer 608, and a protective film 610. In the three-electrode structure (left side of FIG. 6), the common electrode 612, the scan electrode 614, and the address electrode 616 are provided on the partition 606, and in the two-electrode structure (right side of FIG. 6), the partition An X electrode 613 and a Y electrode 615 are provided on 606.

The space between the first substrate 602 and the second substrate 604 is partitioned by the partition wall 606 to form a discharge cell as a unit discharge space that causes discharge.

The discharge cell is filled with discharge gas (approximately 0.5 atm or less) of a pressure lower than atmospheric pressure, and is discharged by the electric field formed according to the driving voltage applied to the respective electrodes involved in each discharge cell. Plasma discharge occurs as charges collide, and vacuum ultraviolet rays are generated as a result of the plasma discharge. As the discharge gas, a mixed gas used by mixing xenon (Xe) gas with any one or two or more of neon (Ne) gas, helium (He) gas, or argon (Ar) gas is used.

The partition wall 606 defines a discharge cell so that a basic unit of an image can be formed and prevents cross talk between the discharge cells.

The partition wall 606 may be made of a dielectric. The dielectric is used as an insulating film of the common electrode 612, the scan electrode 614 and the address electrode 616 or the X electrode 613 and the Y electrode 615 disposed on the partition wall. use. Some of the charges generated by the discharge are attracted by the electric attraction according to the polarity of the voltage applied to each electrode to accumulate in the vicinity of the dielectric (with the passivation layer 610 therebetween) to form wall charges, and the wall charges. The wall charge voltage of the wall is combined with the driving voltage applied to each electrode to provide an electric field to the discharge space.

In addition, the partition wall 606 may be manufactured to include a dielectric layer used as an insulating film of each electrode. That is, according to a preferred embodiment of the double-sided display plasma display panel according to the present invention, the partition wall itself may be formed of a dielectric or a structure including a dielectric layer.

The passivation layer 610 protects the dielectric or the dielectric layer, and facilitates discharge by increasing the emission of secondary electrons during discharge. The protective film is formed using a material such as magnesium oxide (MgO).

Such barrier ribs, dielectric or dielectric layers, and protective films form the barrier rib portion 104. In the conventional plasma display panel fabrication, the barrier rib portion is formed from the rear panel by the lamination process, according to a preferred embodiment of the present invention. In the method of manufacturing a plasma display panel, a partition wall, a dielectric or dielectric layer, and a protective film are manufactured in a separate sheet form, and the partition wall sheet 204 is directly bonded to the first substrate and the second substrate (FIG. 10A). To FIG. 11C).

The shape in which the discharge cells of the double-sided display plasma display panel according to an exemplary embodiment of the present invention are cut parallel to and perpendicular to the first and second surfaces thereof may have a circular structure. The side cutting surface of the discharge cell has a circular structure can be easily seen with reference to Figures 7a, 7c, 8a, 8c, 9a and 9c.

According to another exemplary embodiment of the present invention, the shape in which the discharge cells are cut parallel to the first and second surfaces and perpendicular to the side surfaces may have a polygonal structure such as a rectangle, a hexagon, and an octagon. Side cutting surface of the discharge cell has a rectangular structure can be easily seen with reference to Figures 7b, 7d, 8b, 8d, 9b and 9d.

The side cut surface of the discharge cell having a circular structure means that the discharge cell has a cylindrical structure (see FIGS. 7A, 7C, 8A, 8C, 9A and 9C), and the side cut surface of the discharge cell is square. Having a structure means that the discharge cells have a rectangular parallelepiped structure (Figs. 7B, 7D, 8B, 8D, 9B and 9D). The cylindrical structure can be said to be advantageous in terms of discharge efficiency since the cylindrical structure can effectively utilize the discharge space.

In the phosphor layer 608, a vacuum ultraviolet (VUV) generated by the discharge is absorbed to cause a photo luminescence light emitting mechanism that emits visible light when the excited electrons become stable again. The phosphor layer 608 may include a red light emitting phosphor layer, a green light emitting phosphor layer, and a blue light emitting phosphor layer to enable the plasma display panel to realize a color image. The phosphor layer 608 may include a red light emitting phosphor layer, a green light emitting phosphor layer, and a blue light emitting layer. The phosphor layer may be disposed inside the discharge cell to form a unit pixel. Examples of the red light emitting phosphor include (Y, Gd) BO3: Eu3 +, examples of the green light emitting phosphor include Zn2Si04: Mn2 +, and examples of the blue light emitting phosphor include BaMgAl10O17: Eu2 +.

In the present invention, a portion corresponding to the first and second surfaces of the discharge cell among the first substrate and the second substrate has an etched structure, and the substrate transmittance of visible light is improved by applying the phosphor to the etched structure portion. In addition, there is a positive effect that the overall luminous efficiency of the discharge cells is increased.

7A to 7D illustrate a shape of a discharge cell provided in a double-sided display plasma display panel according to a preferred embodiment of the present invention, and a discharge electrode surrounding the discharge cell.

7A to 7B illustrate a three-electrode structure of the common electrode 712, the scan electrode 714, and the address electrode 716, and FIGS. 7C to 7D illustrate the X electrode 713 and the Y electrode 715. The two-electrode structure is shown.

The discharge cell may have a cylindrical structure as shown in FIG. 7A or 7C, and may have a rectangular parallelepiped structure as shown in FIG. 7B or 7D. Whether the side surface of the discharge cell has a circular structure or a polygonal structure such as a quadrangle is determined by how the partition wall partitioning the space between the first substrate and the second substrate is formed. Thus, the shape of the partition wall is changed.

7A to 7B, the common electrode 712 has a structure surrounding the side surface of the discharge cell in parallel with the first surface (the first substrate direction surface) and the second surface (the second substrate direction surface) of the discharge cell. .

7A to 7B, the scan electrode 714 is similar to the common electrode 712 to form the discharge cell parallel to the first surface (first substrate direction surface) and the second surface (second substrate direction surface) of the discharge cell. It has a structure surrounding the side.

In FIGS. 7A to 7B, the address electrode 716 is disposed between the common electrode 712 and the scan electrode 714, and has a first side (first substrate direction side) and a second side (second substrate) of the discharge cell. And a side surface of the discharge cell parallel to the directional plane).

7C to 7D, the X electrode 713 has a structure surrounding the side surface of the discharge cell parallel to the first surface (first substrate direction surface) and the second surface (second substrate direction surface) of the discharge cell. .

7C to 7D, the Y electrode 715 is similar to the X electrode 713 in which the discharge cell is parallel to the first surface (first substrate direction surface) and the second surface (second substrate direction surface) of the discharge cell. It has a structure surrounding the side.

8A to 8D are diagrams for describing extending directions of a common electrode, a scan electrode, an address electrode, an X electrode, and a Y electrode surrounding the side surface of the discharge cell.

8A to 8D illustrate a shape of the partition sheet 204 in which a plurality of discharge cells are arranged. In FIGS. 8A to 8B, the common electrode 812 and the scan electrode 814 are shown in a discharge cell having a three-electrode structure. And in which direction the address electrode 816 extends, and in which directions the X electrode 813 and the Y electrode 815 extend in the discharge cell having the two-electrode structure. It is.

First, see FIG. 8A showing a cylindrical three-electrode structure and FIG. 8A showing a cuboid three-electrode structure.

The common electrode 812 is arranged to surround side surfaces of the discharge cells parallel to the first and second surfaces of the discharge cells and to extend in one direction parallel to the first and second substrates.

Similar to the common electrode 812, the scan electrode 814 surrounds the side surface of the discharge cell in parallel with the first and second surfaces of the discharge cell, and is parallel to the first and second substrates, It is arranged to extend in the same direction as the extending direction.

The address electrode 816 is disposed between the common electrode 812 and the scan electrode 814 to surround side surfaces of the discharge cell in parallel with the first and second surfaces of the discharge cell, and the first substrate and the second substrate. It is arranged to extend in a direction parallel to and extending in the extending direction of the common electrode 812 and the extending direction of the scan electrode 814.

Next, FIG. 8C shows a cylindrical two-electrode structure and FIG. 8D shows a cuboid two-electrode structure.

The X electrode 813 is disposed so as to surround side surfaces of the discharge cells parallel to the first and second surfaces of the discharge cells and extend in one direction parallel to the first and second substrates.

The Y electrode 815 surrounds the side surfaces of the discharge cells parallel to the first and second surfaces of the discharge cells, and extends in a direction parallel to the first and second substrates and intersecting with the extending direction of the X electrodes 813. It is arranged to be.

9A to 9D are diagrams illustrating a first substrate, a partition sheet, and a second substrate separately in a double-sided display plasma display panel according to an exemplary embodiment of the present invention.

9A shows a double-sided display plasma display panel having a three-electrode structure with cylindrical discharge cells.

9B shows a double-sided display plasma display panel having a three-electrode structure having a cuboid discharge cell.

9C shows a double-sided display plasma display panel having a two-electrode structure having a cylindrical discharge cell.

FIG. 9D shows a double-sided display plasma display panel having a two-electrode structure having a cuboid discharge cell.

9A to 9D, portions of the first substrate and the second substrate corresponding to the first and second surfaces of the discharge cells form an etched structure of a circular or square shape, and the etched structure of the circular or rectangular shape. It can be seen that the phosphor layer is formed at the portion. In addition, looking at the partition sheet, it can be seen that the structure is provided with a discharge cell of cylindrical or cuboid shape, it can be seen that the discharge electrode of the three-electrode or two-electrode structure is disposed on the cross section of the partition sheet.

10A to 10B are diagrams illustrating a step of manufacturing a partition sheet having a three-electrode structure.

The partition sheet is made of a dielectric or includes a dielectric layer 1006, a common electrode 1012, a scan electrode 1014, an address electrode 1016, and a protective layer 1010 for protecting the dielectric or dielectric layer. It is provided.

As shown in FIG. 10A, a process of forming a partition wall by first combining a plurality of partition layers not including the discharge electrodes 1012, 1014, and 1016 and a plurality of partition layers including the discharge electrodes 1012, 1014, and 1016. Go through The barrier rib formed as described above is subjected to a process of applying a protective film for protecting the dielectric or dielectric layer on the barrier rib.

FIG. 10B shows a plurality of barrier layers which do not include discharge electrodes 1012, 1014, and 1016 and a protective film has already been applied, and a plurality of barrier layers which include discharge electrodes 1012, 1014 and 1016 and a protective film is already coated. The process of directly forming a barrier rib coated with a protective film is illustrated.

In addition, there may be various processes of manufacturing the partition sheet.

Compared to the case of manufacturing the panel by laminating one by one from the rear substrate of the rear panel as in the related art, a thick film ceramic sheet is fabricated separately and then directly bonded to the first substrate and the second substrate. According to the method, the manufacturing cost of the plasma display panel can be greatly reduced.

11A to 11C illustrate a method of manufacturing a double-sided display plasma display panel according to a preferred embodiment of the present invention.

First, as shown in FIG. 11A, a portion of the first substrate 1102 corresponding to the first surface of the discharge cell and a portion of the second substrate 1104 corresponding to the second surface of the discharge cell are etched and etched on the substrate. Go through the steps of forming the structure.

Next, as shown in FIG. 11B, a phosphor is applied to the etched structural portion of the first substrate 1102 and the etched structural portion of the second substrate 1104 to form the phosphor layer 1108.

Finally, as shown in FIG. 11C, a partition sheet including a first substrate 1102 having a phosphor layer 1108 formed on an etched structure, a partition 1106 on which discharge electrodes are disposed, and a protective film 1110, and an etched portion The second substrate 1104 having the phosphor layer 1108 formed thereon is bonded to the structure portion.

11C illustrates a case where the discharge electrode disposed on the partition wall 1106 has a three-electrode structure including the common electrode 1112, the scan electrode 1114, and the address electrode 1116.

The lower figure of FIG. 11C has shown the case where the discharge electrode arrange | positioned at the partition 1106 is a 2-electrode structure provided with the X electrode 1113 and the Y electrode 1115. As shown in FIG.

Although the shape of the discharge cell is not directly shown in FIG. 11C, the partition wall is cut so that the partition sheet is cut parallel to the first and second surfaces of the discharge cell and perpendicular to the side surface of the discharge cell to form a circular structure. (Corresponds to the cylindrical discharge cell described above).

Further, the partition wall may be formed such that the partition sheet is cut parallel to the first and second surfaces of the discharge cell and perpendicular to the side surface of the discharge cell to have a polygonal structure such as a square, a hexagon, or an octagon (square structure). In the case of corresponds to the rectangular parallelepiped discharge cell described above).

In the above described the present invention with reference to the specific embodiment shown in the drawings, but this is only an example, those of ordinary skill in the art to which the present invention pertains various modifications and variations therefrom. Therefore, the protection scope of the present invention should be interpreted by the claims to be described later, and all the technical ideas within the equivalent and equivalent ranges should be construed as being included in the protection scope of the present invention.

As described above, according to the present invention, by applying the phosphor layer on the substrate having an etched structure, the substrate transmittance of visible light is improved, and the effective light emitting area is increased to increase the luminous efficiency of the double-sided display plasma display panel. have.

In addition, by fabricating the panel using a separately prepared barrier sheet, the manufacturing cost of the double-side display plasma display panel can be reduced.

Claims (27)

A double-sided display plasma display panel having a first surface, a second surface facing the first surface, and a discharge cell formed by a side surface defining a discharge space. A first substrate having an etched structure on a portion corresponding to the first surface to form the first surface; A second substrate having an etched structure on a portion corresponding to the second surface to form the second surface; A partition wall partitioning the discharge space between the first substrate and the second substrate to form the side surface; A sustain discharge electrode pair having a common electrode and a scan electrode disposed on the partition wall; An address electrode disposed on the partition wall; And A phosphor layer applied to the etched structural portion of the first substrate and the etched structural portion of the second substrate A double-sided display plasma display panel comprising a. The method of claim 1, And the partition wall is made of a dielectric. The method of claim 1, And the partition wall includes a dielectric layer used as an insulating coating of the common electrode, the scan electrode, and the address electrode. The method of claim 2 or 3, The plasma display panel further comprises a protective film for protecting the dielectric or the dielectric layer. The method of claim 1, And a shape in which the discharge cell is cut perpendicular to the side surface has a circular structure. The method of claim 1, And a shape in which the discharge cells are cut perpendicular to the side surface has a polygonal structure of square, hexagon, or octagon. The method of claim 1, And wherein the common electrode surrounds the side surface in parallel to the first and second surfaces. The method of claim 7, wherein And the common electrode is disposed to extend in one direction parallel to the first substrate and the second substrate. The method of claim 1, And the scan electrode surrounds the side surface in parallel with the first surface and the second surface. The method of claim 9, And the scan electrode is disposed to be parallel to the first substrate and the second substrate and extend in the same direction as an extension direction of the common electrode. The method of claim 1, And the address electrode is disposed between the common electrode and the scan electrode and surrounds the side surface in parallel with the first surface and the second surface. The method of claim 11, And the address electrode is disposed to be parallel to the first substrate and the second substrate and extend in a direction crossing an extension direction of the common electrode and an extension direction of the scan electrode. A double-sided display plasma display panel having a first surface, a second surface facing the first surface, and a discharge cell formed by a side surface defining a discharge space. A first substrate having an etched structure on a portion corresponding to the first surface to form the first surface; A second substrate having an etched structure on a portion corresponding to the second surface to form the second surface; A partition wall partitioning the discharge space between the first substrate and the second substrate to form the side surface; An X electrode disposed on the partition wall; A Y electrode disposed on the partition wall; And A phosphor layer applied to the etched structural portion of the first substrate and the etched structural portion of the second substrate A double-sided display plasma display panel comprising a. The method of claim 13, And the partition wall is made of a dielectric. The method of claim 13, And the partition wall includes a dielectric layer used as an insulating film of the X electrode and the Y electrode. The method according to claim 14 or 15, The plasma display panel further comprises a protective film for protecting the dielectric or the dielectric layer. The method of claim 13, And a shape in which the discharge cell is cut perpendicular to the side surface has a circular structure. The method of claim 13, And a shape in which the discharge cells are cut perpendicular to the side surface has a polygonal structure of square, hexagon, or octagon. The method of claim 13, And the X electrode surrounds the side surface in parallel to the first surface and the second surface. The method of claim 19, And the X electrode is disposed to extend in one direction parallel to the first substrate and the second substrate. The method of claim 13, And the Y electrode surrounds the side surface in parallel with the first surface and the second surface. The method of claim 21, And the Y electrode is disposed to extend in a direction parallel to the first substrate and the second substrate and intersecting an extension direction of the X electrode. A first substrate forming a first surface of a unit discharge cell in a discharge space, a second substrate forming a second surface of the discharge cell opposite to the first surface, a discharge electrode, and forming a side surface of the discharge cell A method of manufacturing a double-side display plasma display panel comprising a partition sheet and a phosphor layer applied to the first and second surfaces. (a) etching a portion of the first substrate corresponding to the first surface and a portion of the second substrate corresponding to the second surface to form an etched structure; (b) applying the phosphor to the etched structural portion of the first substrate and the etched structural portion of the second substrate to form the phosphor layer; And (c) joining the first substrate having the etched structure, the barrier sheet and the second substrate having the etched structure; A method of manufacturing a double-sided display plasma display panel comprising a. The method of claim 23, wherein The discharge electrode provided in the partition sheet includes a three-electrode structure of a common electrode, a scan electrode, and an address electrode. The method of claim 23, wherein The discharge electrode provided in the partition sheet includes a two-electrode structure of an X electrode and a Y electrode. The method of claim 23, wherein The partition sheet bonded in the step (c), And the shape in which the partition sheet is cut parallel to the first and second surfaces and perpendicular to the side surfaces is manufactured to have a circular structure. The method of claim 23, wherein The partition sheet bonded in the step (c), A method of manufacturing a double-side display plasma display panel, wherein the partition sheet is cut to have a polygonal structure of a rectangle, a hexagon, or an octagon, which is cut parallel to the first and second surfaces and perpendicular to the side surfaces. .

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