KR100660248B1 - Plasma display panel - Google Patents

Abstract

The present invention relates to a plasma display panel, and in the present invention, by patterning a part of the tip of the individual black stripes, the line width of the region corresponding to any phosphor layer among the entire regions of the individual stripes corresponds to the other phosphor layers. The line width can be increased or decreased substantially. In this case, the front electrodes corresponding to one of the phosphor layers arbitrarily selected are influenced by black stripes, and thus have a stronger or weaker discharge capacity than the front electrodes corresponding to the other phosphor layers.

In the case of the present invention, since some regions of the black stripes corresponding to any one phosphor layer selected from among the entire R, G, and B phosphor layers have a significantly larger or smaller line width than other regions, the front surface adjacent thereto is Some areas of the electrodes can also have a significantly larger or smaller discharge capacity than other areas, so that the front electrodes can make the phosphor layer of a corresponding color stronger or weaker than the phosphor layer of another color. As a result, when the present invention is achieved, the light emission luminance of each R, G, B phosphor layer can be freely adjusted according to the will of the production line.

Description

Plasma display panel {Plasma display panel}

1 is an exemplary view showing a plasma display panel according to the present invention.

2 is a diagram illustrating an inverted front substrate unit of a plasma display panel according to an embodiment of the present invention.

3 is an exemplary view showing the front substrate unit of the plasma display panel upside down according to another embodiment of the present invention.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plasma display panel (hereinafter referred to as " PDP "), and more particularly to the shape of a black stripe disposed in a non-display area between front electrodes. The present invention relates to a PDP that can improve the image quality of a final shipped product by improving light emission luminance of R, G and B phosphor layers.

Recently, various problems regarding the function of the CRT (Cathod Ray Tube) have been raised, and various kinds of display apparatuses that can overcome the disadvantages of the CRT have been developed.

Among such various display devices, in particular, interest in PDP is increasing because PDP has an excellent advantage of displaying a large screen more clearly than conventional CRT.

PDP according to the prior art is, for example, US Patent No. 6078139 "Front panel for plasma display", US Patent No. 6075319 "Plasma display panel device and a method of manufacturing the same (Plasma display panel device) and method for fabricating the same ", US Patent No. 6069446" Plasma display panel with ring-shaped loop electrodes, US Patent No. 6066917 "Plasma display panel display panel, US Pat. No. 6034656, "Plasma display panel and method of controlling brightness of the same."

In general, such a conventional PDP is formed of a combination of front and rear substrate units that are integrally sealed and coupled to each other while facing each other. In this case, a plurality of front electrodes have a stripe shape on one surface of the front substrate unit. Similarly, a plurality of rear electrodes are arranged in a row on one surface of the rear substrate unit.

These front electrodes and back electrodes serve to discharge a sealed discharge gas between the front substrate unit and the rear substrate unit by receiving a predetermined voltage from the outside.

In this case, a black stripe having, for example, a low melting glass material is further disposed in the non-display area between the front electrodes, and the black stripe prevents unnecessary crosstalk between cells, thereby providing a device. It plays a role to improve the overall contrast of.

On the other hand, a plurality of individual discharge cells defined by the partition walls are disposed on the above-described back electrodes, in which case, the colors of R (Red), G (Green), and B (Blue) are formed inside the individual discharge cells. The R, G, and B phosphor layers having are continuously applied in the order of " RGB, RGB,... Of course, the arrangement of the R, G, B phosphor layer can be variously modified according to the situation of the production line.

At this time, each R, G, B phosphor layer is discharged by the discharge gas contained in each of the discharge cells by the driving of the above-mentioned, the back electrode, thereby, when the ultraviolet rays of a predetermined size is radiated, collides with the ultraviolet rays Thus, for example, it serves to emit light having R, G, and B colors toward the front substrate unit.

Here, the front electrodes described above have a structure in which the front electrodes are perpendicular to the back electrodes of the rear substrate unit, and correspond to the previous R, G, and B phosphor layers in respective regions at each end, and in this state, each individual By allocating and managing the discharge states of the discharge cells, the final output image can be maintained at a certain level or more.

At this time, the front electrodes have the same shape as each region corresponding to the previous R, G, and B phosphor layers, so that their discharge capacity affecting the light emitting process of the R, G, and B phosphor layers is uniform. I have it. In this case, in the production line, it is possible to impose the same discharge condition into each of the individual discharge cells in which the R, G, B phosphor layers are separately coated, so that each R, G, B phosphor layer has uniform luminance. It can be induced to emit light.

As such, when each region of the front electrodes corresponding to the R, G, and B phosphor layers has the same shape as a whole, the production line can impose the same discharge condition into each of the individual discharge cells. Although the B phosphor layer can obtain the advantage of emitting light of uniform luminance, in this case, since each region of the front electrodes has the same shape as a whole, the luminance of each R, G, B phosphor layer is arbitrarily selected. You have to take the problem of not choosing and adjusting.

As an example, even if the color temperature of white is found to be too low in the test process before shipment of the PDP, for example, a need arises to raise the luminous luminance of the B phosphor layer, as described above, the conventional front electrodes are R Since the respective regions corresponding to the G and B phosphor layers have a uniform shape as a whole, only the same discharge condition can be applied to each of the R, G and B phosphor layers, so that the B phosphor layer is conventionally selected. Thus, there is no choice but to suffer the serious problem that only the luminance of the B phosphor layer can be arbitrarily easily adjusted.

In this case, the final quality of the PDP is inevitably deteriorated due to the failure of color temperature adjustment.

Accordingly, an object of the present invention is to partially improve the shape of the black stripe that affects the discharge capability of the front electrodes, so that the discharge capability of the front electrodes has a partially irregular value, depending on the type of phosphor layer arbitrarily selected. The luminance of the R, G, B phosphor layer is induced to be freely controlled.

Another object of the present invention is to significantly improve the image quality of the final shipment of the PDP by allowing the luminance control of each R, G, B phosphor layer to be arbitrarily adjusted.

Still other objects of the present invention will become more apparent from the following detailed description and the accompanying drawings.

In order to achieve the above object, the present invention discloses a PDP consisting of a front and rear substrate unit which is integrally sealed while facing each other with individual discharge cells filled with discharge gas therebetween.

Here, R phosphor layers, B phosphor layers, G phosphor layers, etc., which emit light of R color, G color, B color, and the like are sequentially applied and sequentially arranged in the respective discharge cells, and the R phosphor layer, B The phosphor layer, the G phosphor layer, and the like form a structure corresponding to the front electrodes formed on the front substrate unit in turn. A plurality of black stripes corresponding to each of the front electrodes are disposed between the front electrodes. In this case, each of the black stripes is similar to each of the R phosphor layer, the B phosphor layer, and the G phosphor layer. In turn, they form a corresponding structure.

At this time, in one embodiment of the present invention, by patterning a part of the front end of the individual black stripes, the line width of the region corresponding to any phosphor layer among the entire regions of the individual stripes is substantially larger than the line width of the region corresponding to the other phosphor layers. To be reduced. In this case, the front electrodes corresponding to one of the phosphor layers arbitrarily selected are influenced by the black stripes, and thus have a stronger discharge capacity than the front electrodes corresponding to the other phosphor layers.

In addition, in another embodiment of the present invention, by introducing a concept opposite to the previous embodiment, by patterning a part of the tip of the individual black stripes, the line width of the area corresponding to any phosphor layer of the entire areas of the individual stripes remains It can be substantially increased than the line width of the region corresponding to the other phosphor layers. In this case, the front electrodes corresponding to any one of the phosphor layers arbitrarily selected are affected by the black stripes, and thus have a worse discharge capacity than the front electrodes corresponding to the other phosphor layers.

In other words, in each embodiment of the present invention, by increasing and decreasing the line widths of the individual stripes corresponding to an arbitrary phosphor layer, the discharge capability of the front electrodes is partially adjusted according to the kind of the phosphor layer arbitrarily selected.

For each of the embodiments of the present invention, as mentioned above, a portion of the black stripes corresponding to any one phosphor layer selected from among the entire R, G, and B phosphor layers is significantly larger or smaller than other regions. Since some regions of the front electrodes adjacent thereto may also have a significantly larger or smaller discharge capacity than other regions, the front electrodes may compare the phosphor layer of the corresponding color with the phosphor layer of the other color. It is possible to emit light stronger or weaker, and eventually, when the present invention is achieved, the emission luminance of each R, G, B phosphor layer can be freely adjusted according to the will of the production line.                     

Hereinafter, a plasma display panel according to the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 1, the PDP 50 according to the present invention, for example, an indirect discharge type PDP, includes a combination of a front substrate unit 10 and a rear substrate unit 30 facing each other.

In this case, a series of seal lines (not shown) are formed at the outer sides of the front substrate unit 10 and the rear substrate unit 30, so that the front substrate unit 10 and the rear substrate unit 30 are sealed smoothly. Assist in maintaining state.

A discharge gas, for example, a penning gas, is accommodated between the front substrate unit 10 and the rear substrate unit 30 sealed by the seal line. The phening mixed gas has a configuration in which argon (Ar), xenon (Xe), and the like are mixed with neon gas and have a characteristic of easily discharging even at a low voltage.

In this case, as shown in the drawing, the front substrate unit 10 may be, for example, a front substrate 11 made of glass, front electrodes 17 and a front dielectric layer 15 formed on the front substrate 11. Is made up of a combination.

In this case, the front electrodes 17 are spaced apart at one end of a stripe shape on one surface of the front substrate 11 facing the rear substrate unit 30 to form a structure in which the front dielectric layers 15 are arranged in parallel. Silver forms a structure that is applied to one surface of the front substrate 11 so as to cover the front electrodes 17 in a predetermined thickness.

At this time, each of the front electrodes 17 forms a structure corresponding to the R, B, and G phosphor layers 36, 37, and 38 which will be described later for each region of each tip. In this case, each of the front electrodes 17 ) Is composed of a combination of, for example, a stripe-shaped transparent electrode 12 and an auxiliary electrode 13 in electrical contact with the transparent electrode 12 while maintaining a width smaller than that of the transparent electrode 12.

Here, the transparent electrode 12 is made of, for example, an Indium-Tin-Oxide (ITO) material, and serves to continuously maintain the discharge state in the individual discharge cells 35 described later, and the auxiliary electrode 13 ) Is made of, for example, a composite material of chromium-copper-chromium (Cr-Cu-Cr), and serves to continuously support the discharge maintaining function of the transparent electrode 12.

In this case, a black stripe 14 of, for example, a low melting glass material is further disposed in the non-display area between each of the front electrodes 17. The black stripe 14 is lined up similarly to the previous front electrodes. It is spaced apart at the tip of the shape, and arranged in parallel in succession, and forms a structure corresponding to the R, B, and G phosphor layers in order for each region of each tip. The black stripe 14 optically suppresses unnecessary discharge by the front electrodes 17.

In this case, a protective layer 16, for example, an MgO layer is further disposed on the outermost surface of the front dielectric layer 15, and the protective layer 16 serves to improve the discharge characteristics of the front dielectric layer 15. do.

On the other hand, the rear substrate unit 30 corresponding to the front substrate unit 10 mentioned above is similar to the front substrate 10, for example, the glass substrate back substrate 31, and the rear substrate 31 Is formed by a combination of the back electrodes 32 and the back dielectric layer 33 formed on the top of the back panel.

In this case, the rear electrodes 32 are vertically spaced apart from one surface of the rear substrate 31 facing the front substrate 11 while being perpendicular to the front electrodes 17 described above, and are continuously connected in parallel. The rear dielectric layer 33 forms a structure in which a thickness is applied to one surface of the rear substrate 31 so that the rear electrodes 32 are covered.

Here, a plurality of barrier ribs 34 are erected on one surface of the rear dielectric layer 33, and the barrier ribs 34 may include the front substrate unit 10 and the rear substrate unit 30 as seal lines. In the case of being integrally sealed by the front panel unit 10, the interface space between the front board unit 10 and the back board unit 30 is partitioned into a predetermined size, thereby intersecting the points between the front board unit 10 and the back board unit 30. Allow a plurality of individual discharge cells 35 to be defined. In this case, the above-described discharge gas is sealed and filled in the internal discharge space of the individual discharge cells 35.

At this time, the phosphor layer 39 is further applied to the internal discharge space of the individual discharge cells 35 covering the inner surfaces of the partitions 34, and the phosphor layer 39 is formed on the front and back electrodes. The discharge gas contained in each of the discharge cells 35 is discharged by the driving of the 17 and 32, and when the ultraviolet rays of a predetermined size are emitted, by colliding with the ultraviolet rays, light of a predetermined size is, for example, It serves to guide the light to the front substrate unit 10.

Here, as shown in the figure, the phosphor layer 39 is arranged along the transverse direction of each of the individual discharge cells 35, for example, in the order of " RBG, RBG,... &Quot; 36), a combination of the B phosphor layer 37 and the G phosphor layer 38, in which case each of the R phosphor layer 36, the B phosphor layer 37 and the G phosphor layer 38 is described above. When ultraviolet rays are emitted by the discharge gas discharge process, the ultraviolet rays collide with the ultraviolet rays to emit light of R color, B color, and G color toward the front substrate unit 10, for example. Of course, as mentioned above, the arrangement of the R, G, B phosphor layers 36, 37, 38 may be variously modified according to the situation of the production line.

In this case, as described above, each of the front electrodes 17 and the black stripes 14 of the front substrate 11 may be formed of the R, B, and G phosphor layers 36, 37, and 38 for each region of each front end. And the corresponding structures in turn.

In this state, when the front dielectric layer 15 covering the front electrodes 17 is discharged inside each of the discharge cells 35 to generate a plurality of ions, each front electrode 17 is separated. Similarly, the back dielectric layer 33 may discharge each back electrode 32 when a plurality of ions are generated by discharging inside each of the discharge cells 35. It serves to protect against ions.

At this time, in the present invention, the black stripe 14 of the region corresponding to one or more phosphor layers arbitrarily selected among the R, G, and B phosphor layers 36, 37, and 38 is the black stripe and the width of the region corresponding to the other phosphor layers. Let it form differently.

For example, in an exemplary embodiment of the present invention, as shown in FIG. 2, a partial region of the black stripe 14 corresponding to any one of the R, B, and G phosphor layers 36, 37, and 38, which is arbitrarily selected. By thinly patterning, the line width of the region corresponding to any preselected phosphor layer among the entire regions of the black stripes 14 can be substantially reduced than the line width of the region corresponding to the other phosphor layers.

For example, in the present invention, as shown in the drawing, the region A of the black stripe 14 corresponding to the B phosphor layer 37 arbitrarily selected among the R, B, and G phosphor layers 36, 37, 38 is thinly patterned. Thus, the line width of the region A corresponding to the preselected B phosphor layer 37 in the entire area of the black stripe 14 is larger than the line widths of the regions B and C corresponding to the other R and G phosphor layers 36 and 38. To be substantially reduced.

The line width structure of the black stripes is a part of the gist of the present invention, and, of course, the conventional black stripes do not form this line width structure at all.

In the conventional case, since the front electrodes had a uniform shape for each region corresponding to the R, G, and B phosphor layers, only the same process conditions could be applied to each of the R, G, and B phosphor layers. In this case, a specific phosphor layer was selected from all the R, G, and B phosphor layers, and only the emission luminance of the phosphor layer could be arbitrarily adjusted.

However, in the case of the present invention, as described above, the black stripes 14 which may affect the discharge capability of the front electrodes 17 are " the line width of the region corresponding to any preselected phosphor layer remains. Since the front electrodes 17 are affected by these black stripes, the entire R, G, and B phosphor layers 36,37 are formed. (38), a specific phosphor layer can be selected to differentiate only the discharge conditions of the phosphor layer, and thus, only the luminance of the phosphor layer can be arbitrarily adjusted. As a result, the color temperature of the final PDP can be adjusted. Depending on the situation of the production line, it is possible to adjust flexibly, and eventually, the image quality of the PDP can be greatly improved.

Such an embodiment of the present invention, as mentioned above, for example, before the shipment of the assembled PDP, the color temperature of the white is found to be too low, for example, the need to increase the luminous luminance of the B phosphor layer is raised. In this case, it can be usefully applied.

In this case, in the present invention, as described above, the line width of the region A corresponding to the previously selected B phosphor layer 37 among the entire regions of the individual black stripes 14 is different from the remaining R and G phosphor layers 36 and 38. By reducing the discharge paths of the areas B, C corresponding to the ()), and through this, the discharge capacity of some of the front electrode 17 region corresponding to the B phosphor layer 37 can be improved, B The phosphor layer 37 may emit more strongly than the remaining R phosphor layer 36 and the G phosphor layer 38, and thus, may induce the white color temperature of the PDP to be elastically adjusted according to the situation of the production line. It is. In this case, the PDP can be properly corrected for the color temperature, thereby maintaining better image quality.

Of course, in applying this embodiment of the present invention, only changing the patterning position of the black stripe 14, the R phosphor layer 36 or the G phosphor layer 38, not the B phosphor layer 37 Naturally, the luminance can also be easily adjusted.

Meanwhile, as shown in FIG. 3, in another embodiment of the present invention, a phosphor layer arbitrarily selected from among R, B, and G phosphor layers 36, 37, and 38 is different from the previous embodiment. By patterning a portion of the black stripes 14 to be thick, the line width of the region corresponding to any selected phosphor layer among the entire regions of the black stripes 14 is larger than the line width of the region corresponding to the other phosphor layers. To be substantially increased.

For example, in the present invention, the black stripe 14 is thickened by patterning the region B of the black stripe 14 corresponding to the R phosphor layer 36 arbitrarily selected among the R, B, and G phosphor layers 36, 37, and 38. The line width of the region B corresponding to the pre-selected R phosphor layer 36 among the entire regions of the can be substantially increased than the line widths of the regions A and C corresponding to the other B and G phosphor layers 37 and 38. .

As described above, another embodiment of the present invention may be usefully applied, for example, when the necessity of raising the emission luminance of the B phosphor layer 37 is raised.

In this case, as described above, in another embodiment of the present invention, among the entire areas of the individual black stripes 14, the line B of the area B corresponding to the pre-selected R phosphor layer 36 is different from the remaining B and G phosphors. The discharge paths of the regions A and C corresponding to the layers 37 and 38 may be substantially increased, thereby lowering the discharge capability of some of the front electrode 17 regions corresponding to the R phosphor layer 36. By improving the discharge capability of the portion of the front electrode 17 corresponding to the B phosphor layer 37 relatively, the B phosphor layer 37 can be emitted more strongly than the R phosphor layer 36, and eventually, the PDP. White color temperature can be induced to be elastically adjusted according to the production line situation. In this case, the PDP can be properly corrected for the color temperature, thereby maintaining better image quality.

Of course, also in the application of this embodiment of the present invention, as in the above-described embodiment, only changing the patterning position of the black stripe 14, R phosphor layer 36 instead of B phosphor layer 37 or Naturally, the luminance of the G phosphor layer 38 may also be easily adjusted.

Meanwhile, in another exemplary embodiment of the present invention, a portion of the black stripe 14 corresponding to any one of the R, B, and G phosphor layers 36, 37, and 38, which is arbitrarily selected, is thickly patterned. By thinly patterning a portion of the black stripes 14 corresponding to the other phosphor layers, the widths of the black stripes 14 may have different sizes.

Even in this case, in the present invention, by selecting a specific phosphor layer, it is possible to differentiate only the discharge conditions of the phosphor layer, thereby allowing only the emission luminance of the phosphor layer to be arbitrarily adjusted, and as a result, The color temperature can be flexibly adjusted according to the situation of the production line, which in turn can significantly improve the image quality of the PDP.

In addition, in another embodiment of the present invention, the black stripe is formed only in a region corresponding to any one of the R, B, and G phosphor layers 36, 37, and 38, which are arbitrarily selected. Of course, even in this case, in the present invention, by selecting a specific phosphor layer, it is possible to differentiate only the discharge conditions of the phosphor layer, thereby allowing only the emission luminance of the phosphor layer to be arbitrarily adjusted, and as a result, The color temperature of the PDP can be flexibly adjusted according to the situation of the production line, resulting in a significant improvement in the image quality of the PDP.

As described above, in the present invention, by increasing and decreasing the line width of the individual stripes corresponding to any phosphor layer, through this, the discharge capacity of the front electrodes is partially adjusted according to the type of the phosphor layer arbitrarily selected, The image quality of the PDP finally shipped can be greatly improved.

This invention shows the overall useful effect in the various types of PDP produced in the production line.

And while certain embodiments of the invention have been described and illustrated, it will be apparent that the invention may be embodied in various modifications by those skilled in the art.

Such modified embodiments should not be understood individually from the technical spirit or point of view of the present invention and such modified embodiments should fall within the scope of the appended claims of the present invention.

As described in detail above, in the PDP according to the present invention, by patterning a part of the tip of the individual black stripes, the line width of the area corresponding to any phosphor layer among the entire areas of the individual black stripes corresponds to the other phosphor layers. It can be substantially increased or decreased than the line width of the region. In this case, the front electrodes corresponding to any one of the phosphor layers randomly selected are affected by the black stripes, and thus have a stronger or weaker discharge capacity than the front electrodes corresponding to the other phosphor layers.

In the case of the present invention, since some regions of the black stripes corresponding to any one phosphor layer selected from among the entire R, G, and B phosphor layers have a significantly larger or smaller line width than other regions, the front surface adjacent thereto is Some areas of the electrodes can also have a significantly larger or smaller discharge capacity than other areas, so that the front electrodes can make the phosphor layer of the corresponding color stronger or weaker than the phosphor layer of the other color. As a result, when the present invention is achieved, the light emission luminance of each R, G, B phosphor layer can be freely adjusted according to the intention of the production line.

Claims (5)

A front substrate and a rear substrate disposed in parallel with a predetermined distance therebetween; A plurality of partition walls formed on the rear substrate; Back electrodes formed between the barrier ribs; A dielectric layer formed on the back electrodes; A plurality of front electrodes formed on one surface of the front substrate corresponding to the back substrate so as to intersect the back electrodes; Black stripe formed in a non-display area between the front electrodes; A plurality of discharge cells formed at intersections of the back electrodes and the front electrodes; R, G, B phosphor layers formed on at least a portion between the partitions; It includes a discharge gas is sealed and filled in the discharge space between the front substrate and the rear substrate, And wherein the black stripes of a region corresponding to one or more phosphor layers arbitrarily selected from among the R, G, and B phosphor layers are different from the black stripes of the regions corresponding to the other phosphor layers. The method of claim 1, wherein the black stripe of a region corresponding to one or more phosphor layers arbitrarily selected among the R, G, and B phosphor layers is formed to have a narrower width than the black stripe of the region corresponding to the other phosphor layers. Plasma display panel. The method of claim 1, wherein the black stripe of a region corresponding to one or more phosphor layers arbitrarily selected among the R, G, and B phosphor layers is formed to be wider than the black stripe of regions corresponding to the other phosphor layers. Plasma display panel. The plasma display panel of claim 1, wherein the black stripes of the regions corresponding to one or more phosphor layers arbitrarily selected from among the R, G, and B phosphor layers have different widths. A front substrate and a rear substrate disposed in parallel with a predetermined distance therebetween; A plurality of partition walls formed on the rear substrate; Back electrodes formed between the barrier ribs; A dielectric layer formed on the back electrodes; A plurality of front electrodes formed on one surface of the front substrate corresponding to the back substrate so as to intersect the back electrodes; Black stripes selectively formed in the non-display area between the front electrodes; A plurality of discharge cells formed at intersections of the back electrodes and the front electrodes; R, G, B phosphor layers formed on at least a portion between the partitions; It includes a discharge gas is sealed and filled in the discharge space between the front substrate and the rear substrate, And the black stripes are formed only in one or more regions arbitrarily selected among the R, G, and B phosphor layers.

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