KR20090004136A - Plasma display panel - Google Patents

Plasma display panel Download PDF

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Publication number
KR20090004136A
KR20090004136A KR1020070068109A KR20070068109A KR20090004136A KR 20090004136 A KR20090004136 A KR 20090004136A KR 1020070068109 A KR1020070068109 A KR 1020070068109A KR 20070068109 A KR20070068109 A KR 20070068109A KR 20090004136 A KR20090004136 A KR 20090004136A
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KR
South Korea
Prior art keywords
electrode
layer
discharge cell
scan
bus
Prior art date
Application number
KR1020070068109A
Other languages
Korean (ko)
Inventor
송정석
Original Assignee
삼성에스디아이 주식회사
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Publication date
Application filed by 삼성에스디아이 주식회사 filed Critical 삼성에스디아이 주식회사
Priority to KR1020070068109A priority Critical patent/KR20090004136A/en
Publication of KR20090004136A publication Critical patent/KR20090004136A/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J11/00—Gas-filled discharge tubes with alternating current induction of the discharge, e.g. alternating current plasma display panels [AC-PDP]; Gas-filled discharge tubes without any main electrode inside the vessel; Gas-filled discharge tubes with at least one main electrode outside the vessel
    • H01J11/20—Constructional details
    • H01J11/22—Electrodes, e.g. special shape, material or configuration
    • H01J11/24—Sustain electrodes or scan electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J11/00—Gas-filled discharge tubes with alternating current induction of the discharge, e.g. alternating current plasma display panels [AC-PDP]; Gas-filled discharge tubes without any main electrode inside the vessel; Gas-filled discharge tubes with at least one main electrode outside the vessel
    • H01J11/10—AC-PDPs with at least one main electrode being out of contact with the plasma
    • H01J11/12—AC-PDPs with at least one main electrode being out of contact with the plasma with main electrodes provided on both sides of the discharge space
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2211/00—Plasma display panels with alternate current induction of the discharge, e.g. AC-PDPs
    • H01J2211/20—Constructional details
    • H01J2211/22—Electrodes
    • H01J2211/225—Material of electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2211/00—Plasma display panels with alternate current induction of the discharge, e.g. AC-PDPs
    • H01J2211/20—Constructional details
    • H01J2211/22—Electrodes
    • H01J2211/24—Sustain electrodes or scan electrodes
    • H01J2211/245—Shape, e.g. cross section or pattern

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Gas-Filled Discharge Tubes (AREA)

Abstract

A plasma display panel is provided to remove the black band by forming the monolayer bus electrode of gray color at the first and the second scanning electrode. A backplane substrate(10) and a front substrate(15) are arranged with a predetermined distance. Address electrodes(11) are formed on the upper side of the backplane substrate into the first direction. One address electrode is parallelly arranged to the adjacent other address electrode. A backside dielectric layer(12) is formed on the upper side of the backplane substrate. Display electrodes(16) are formed under the lower surface of the front substrate. One display electrode is arranged parallel with the other display electrode.

Description

Plasma Display Panel {PLASMA DISPLAY PANEL}

The present invention relates to a plasma display panel, and more particularly, to a plasma display panel having an X-YY electrode structure.

The plasma display panel forms a plasma through a discharge phenomenon. Ultraviolet (UV) light emitted from the plasma excites the phosphor layer, and an image is realized by using visible light of red (R), green (G), and blue (B) colors generated in the phosphor layer.

The plasma display panel can easily realize a large screen, and because it is a self-luminous display device such as a cathode ray tube (CRT), not only has good color reproducibility but also has a large field of view and excellent image display ability. In addition, the plasma display panel has a strength in terms of productivity and cost since the manufacturing method is simpler than liquid crystal display (LCD).

In general, a plasma display panel includes a scan electrode (or Y electrode) and a sustain electrode (or X electrode) for discharging each other in a discharge cell, each of which is composed of a transparent electrode and a bus electrode.

Some plasma display panels have an electrode structure in which sustain electrodes, first scan electrodes, and second scan electrodes are sequentially formed in accordance with the arrangement order of the electrodes. This electrode structure is called an X-YY electrode structure.

Bus electrodes are formed on each of the sustain electrode, the first scan electrode, and the second scan electrode, and the bus electrodes formed on the sustain electrode and the bus electrodes formed on the first and second scan electrodes are sequentially arranged.

Meanwhile, bus electrodes formed on the first scan electrode and the second scan electrode are formed to be adjacent to each other. There is a problem in that black stripes appear on the screen by the adjacent bus electrode lines.

The present invention provides a plasma display panel in which a bus electrode formed on a first scan electrode and a second scan electrode is formed of a single gray layer in a display electrode having an arrangement structure of a sustain electrode, a first scan electrode, and a second scan electrode. will be.

A plasma display panel according to an exemplary embodiment of the present invention may include a front substrate facing a rear substrate at intervals, an address electrode formed to extend in a first direction on the rear substrate, and a second direction crossing the first direction. And a partition wall disposed between the front substrate and the rear substrate to form a plurality of discharge cells, wherein the display electrode includes a first discharge cell and a second discharge cell adjacent to each other in the first direction. A boundary between the first discharge cell and the third discharge cell adjacent to each other in a direction opposite to the first direction and a sustain electrode for applying a sustain voltage in common to the first discharge cell and the second discharge cell after passing through a boundary; After that, a scan voltage is applied to the first discharge cell, and is arranged in parallel with the first scan electrode and the first scan electrode to be parallel to the sustain electrode. And a second scan electrode configured to apply a scan voltage, wherein the bus electrodes formed on the first scan electrode and the second scan electrode are formed in a single layer, and the bus electrodes formed on the sustain electrode are formed of the first layer and the first scan electrode. It is formed in two layers.

In addition, in the embodiment of the present invention, the sustain electrode, the first scan electrode and the second scan electrode may be sequentially arranged in the first direction, and the first discharge cell and the second discharge cell are arranged in the center. The third discharge cells may be disposed on both sides.

In an embodiment of the present invention, the first layer may be a black layer, the second layer may be a white layer, and the single layer may be a gray layer. In addition, the first layer may include at least one material of Cr and Cu, and the single layer may include an Ag material, and the single layer may be formed by mixing materials constituting the first and second layers. Can be.

As described above, according to the plasma display panel according to the present invention, in the X-YY electrode structure in which the sustain electrode, the first scan electrode, and the second scan electrode are sequentially arranged, a gray single layer bus is formed on the first and second scan electrodes. As the electrode is formed, the black band is removed and the image quality is smoothed.

In addition, since the second bus electrode and the third bus electrode are formed of a single gray layer, the manufacturing process is simpler than that of manufacturing two or more different layers.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.

In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like elements throughout the specification.

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

1 is a partially exploded perspective view of a plasma display panel according to an embodiment of the present invention, and FIG. 2 is a partial cross-sectional view of the plasma display panel according to an embodiment of the present invention.

As shown in the figure, the plasma display panel includes discharge cells 19 partitioned by the partition 13 between the back substrate 10 and the front substrate 15, and address electrodes 11 and display electrodes formed corresponding thereto. It comprises 16.

The rear substrate 10 and the front substrate 15 face each other at predetermined intervals. In addition, the address electrodes 11 are formed on the upper surface of the rear substrate 10 in a first direction (y-axis direction in the drawing). In addition, one address electrode 11 is arranged in parallel with another adjacent address electrode.

In addition, a back dielectric layer 12 is formed on an upper surface of the back substrate 10, and the back dielectric layer 12 covers the address electrode 11. The address electrode is made of a conductive metal such as silver (Ag), and is chemically stable and does not react with the back dielectric layer 12 and the back substrate 10.

The lower surface of the front substrate 15 is formed by extending the display electrodes 16 in a second direction (x-axis direction in the drawing). In addition, one display electrode 16 and another display electrode adjacent to each other are arranged in parallel with each other.

As shown in the drawing, the display electrode 16 includes a sustain electrode 16a, a first scan electrode 16b, and a second scan electrode 16c, which are transparent electrodes 16aa, 16ba, and 16ca, and a bus electrode, respectively. 16ab, 16bb, 16cb). In addition, these relations have a structure in which bus electrodes 16ab, 16bb, and 16cb are formed on the lower surfaces of the transparent electrodes 16aa, 16ba, and 16ca. In addition, the transparent electrodes 16aa and 16ba are spaced apart from each other by a predetermined distance to form a discharge gap Gap.

In the embodiment of the present invention, the structure in which the sustain electrodes 16a and the X electrodes, the first scan electrodes 16b and the Y electrodes, and the second scan electrodes 16c and the Y electrodes are arranged in this order is called an X-YY electrode structure. .

Meanwhile, the transparent electrodes 16aa, 16ba, and 16ca are made of a transparent material such as indium tin oxide (ITO) to easily transmit visible light, but the conductivity is not good because the electrical resistance is high. However, the bus electrodes 16ab, 16bb, and 16cb may easily apply a voltage to the transparent electrodes 16aa, 16ba, and 16ca by using a conductive metal material.

The front dielectric layer 17 is formed on the bottom surface of the front substrate 15. In addition, the front dielectric layer 17 has a structure covering the display electrode 16. The front dielectric layer 17 protects the display electrode 16 from discharge. In addition, the front dielectric layer 17 accumulates wall charges to facilitate discharge in the discharge cells 19.

The front dielectric layer 17 is covered with a protective layer 18. The protective layer 18 is a transparent material that not only easily transmits visible light emitted from the phosphor layer 14, but also protects the front dielectric layer 17 from discharge. In addition, the protective layer 18 serves to lower the discharge start voltage by increasing the secondary electron emission coefficient.

A partition 13 is formed between the protective layer 18 and the back dielectric layer 12. As shown, the partition wall 13 includes a horizontal partition member 13a and a vertical partition member 13b. The horizontal partition member 13a is formed to extend in the second direction (x-axis direction in the drawing), and the vertical partition member 13b is formed to extend in the first direction (y-axis direction in the drawing). In addition, the horizontal partition member 13a and the vertical partition member 13b cross each other. In the present embodiment, the horizontal partition member 13a and the vertical partition member 13b partition the discharge cells 19 in the form of a matrix.

In more detail, the horizontal partition member 13a includes a first partition member 13aa and a second partition member 13ab, and the first partition member 13aa and the second partition member 13ab are spaced apart from each other. They are placed next to each other. In addition, an exhaust passage 112 is formed between them. As illustrated, the exhaust passage 112 extends in a second direction (x-axis direction in the drawing). In addition, a bridge 111 is formed in the exhaust passage 112 (this structure is also referred to as a double partition structure).

As shown in FIG. 2, both ends of the bridge 111 are connected to the first partition member 13aa and the second partition member 13ab. Meanwhile, the bridge 111 may be formed together with the first partition member 13aa and the second partition member 13ab or may be formed by a separate process from these.

Naturally, the discharge cells 19 according to the embodiment of the present invention may be formed in various shapes such as a stripe or a delta. The partition 13 of this type prevents crosstalk between the discharge cells 19 and provides a surface on which the phosphor layer 14 is applied.

The discharge cell 19 is filled with a discharge gas which is an inert gas (for example, a mixed gas of Ne and Xe). This discharge gas facilitates the discharge between the sustain electrode 16a and the first scan electrode 16b. The vacuum ultraviolet rays emitted by the discharge excite the phosphor layer 14 applied in the discharge cell to emit visible light.

As shown in FIG. 2, in the exemplary embodiment of the present invention, the display electrode 16 includes a sustain electrode 16a, a first scan electrode 16b, and a second scan electrode 16c. , 16b and 16c are sequentially formed from right to left direction. The sustain electrode 16a and the first scan electrode 16b correspond to the first discharge cell 19a, and the second scan electrode 16c corresponds to the second discharge cell 19b.

The transparent electrode 16aa of the sustain electrode 16a is formed corresponding to the first discharge cell 19a and the third discharge cell 19c adjacent thereto, and the first bus electrode 16ab is formed of the first discharge cell 19a. And the partition 13 between the second discharge cell 19b. In the embodiment of the present invention, the sustain electrode 16a is called a common electrode.

The sustain electrode 16a includes a transparent electrode 16aa and a first bus electrode 16ab, and the first bus electrode 16ab includes a first layer 16aba formed on the transparent electrode 16aa and the first layer ( And a second layer 16abb formed on 16aba. In an embodiment of the present invention, the first layer 16aba is a black layer and the second layer 16abb is a hinting layer. In addition, the first layer 16aba is formed of at least one material of Cr / Cu / Cr, Cr / Al / Cr, Co, Ru, Mn, and Rb, and the second layer 16abb is formed of Ag or Au.

The black first layer 16aba increases the black portion of the panel and also serves as a bonding material between the white second layer 16abb and the transparent electrode 16aa. The second layer 16abb has high conductivity, and thus easily applies a current to the transparent electrode 16aa.

As shown in FIG. 2, the first scan electrode 16b includes a transparent electrode 16ba and a second bus electrode 16bb, and the second bus electrode 16bb is disposed on the lower surface of the transparent electrode 16ba. Is formed. In the exemplary embodiment of the present invention, the second bus electrode 16bb is formed as a single layer.

The second bus electrode 16bb is formed in a single layer different from that in which the first bus electrode 16ab is divided into a first layer 16aba and a second layer 16abb. In particular, since the second bus electrode 16bb is formed as a single layer, there are various characteristics.

In the embodiment of the present invention, the second bus electrode 16bb has a mixed color of black and white, that is, gray. For example, a raw material mixture of the first layer 16aba and the second layer 16abb of the first bus electrode 16ab may be a raw material of the second bus electrode 16bb as a single layer. In this case, the color of the second bus electrode 16bb may be gray in which black of the first layer 16aba and white of the second layer 16abb are mixed.

As shown in FIG. 2, the third bus electrode 16cb formed under the second scan electrode 16c according to the exemplary embodiment of the present invention is also formed of a single gray layer like the second bus electrode 16bb. do. In addition, the second bus electrode 16bb and the third bus electrode 16cb are formed on the upper side of the horizontal partition member 13a, and the second bus electrode 16bb is formed on the upper side of the first partition member 13aa and The third bus electrode 16cb is formed on the upper side of the second partition member 13ab.

3 is a partial plan view of a plasma display panel according to an exemplary embodiment of the present invention.

As shown in FIG. 3, the bus electrode includes a first bus electrode 16ab, a second bus electrode 16bb, and a third bus electrode 16cb, and these bus electrodes are sequentially formed.

As described above in FIG. 2, the first bus electrode 16ab is formed of a black first layer 16aba and a white second layer 16abb, and the second bus electrode 16bb and the third bus electrode are formed. As (16cb) is formed of a single gray layer, they have different colors.

As shown in FIG. 3, the first bus electrode 16ab has a relatively black color, and the second bus electrode 16bb and the third bus electrode 16cb have a gray color. Therefore, since the second bus electrode 16bb and the third bus electrode 16cb are not formed in black, the viewer cannot see the black stripes well.

In the embodiment of the present invention, as the second bus electrode 16bb and the third bus electrode 16cb are formed of a single layer of the same material, the process may be simplified. In addition, since the bus electrodes 16bb and 16cb are formed of a single layer of the same material, less edge curl occurs during the drying and firing processes.

As shown in FIG. 3, the transparent electrode 16ba intersects with the first electrode member 30 and the first electrode member 30 formed to extend from the edge of the first discharge cell 19a to the center portion. And a second electrode member 32 formed to extend in a direction to be formed at an end of the first electrode member 30. In the embodiment of the present invention, the first electrode member 30 has a first width W 1 , and the second electrode member 32 has a second width W 2 .

Although the preferred embodiments of the present invention have been described above, the present invention is not limited thereto, and various modifications and changes can be made within the scope of the claims and the detailed description of the invention and the accompanying drawings. Naturally, it belongs to the scope of the invention.

1 is a partially exploded perspective view of a plasma display panel according to an embodiment of the present invention.

2 is a partial cross-sectional view of a plasma display panel according to an embodiment of the present invention.

3 is a partial plan view of a plasma display panel according to an exemplary embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

10: back substrate 11: address electrode

12: back dielectric layer 13: bulkhead

13a: horizontal partition member 13b: vertical partition member

13aa: first partition member 13ab: second partition member

14: phosphor layer 15: front substrate

16: display electrode 16a: sustain electrode

16b: first scan electrode 16c: second scan electrode

16aa, 16ba, 16ca: transparent electrodes 16ab, 16bb, 16cb: bus electrodes

17: front dielectric layer 18: protective layer

19: discharge cell 111: bridge

112: exhaust passage 30: first electrode member

32: second electrode member W 1 : first width

W 2 : second width

Claims (8)

A front substrate facing the rear substrate at an interval; An address electrode formed to extend in a first direction on the back substrate; A display electrode formed in a second direction crossing the first direction; And A partition wall disposed between the front substrate and the rear substrate to form a plurality of discharge cells; The display electrode, A sustain electrode passing through a boundary between the first discharge cell and the second discharge cell adjacent to each other in the first direction and applying a sustain voltage to the first discharge cell and the second discharge cell in common; And A first scan electrode which crosses the boundary of the first discharge cell and the third discharge cell adjacent to each other in the opposite direction to the first direction, applies a scan voltage to the first discharge cell, and is arranged in parallel with the sustain electrode; ; And A second scan electrode disposed in parallel with the first scan electrode to apply a scan voltage to the third discharge cell; The bus electrode formed on the first scan electrode and the second scan electrode is formed of a single layer, The bus electrode formed on the sustain electrode is formed of a first layer and a second layer. According to claim 1, And the sustain electrode, the first scan electrode, and the second scan electrode are sequentially arranged in the first direction. According to claim 1, And a second discharge cell and a third discharge cell on both sides of the first discharge cell. According to claim 1, Wherein the first layer is a black layer, and the second layer is a white layer. According to claim 1, Wherein said single layer is a gray layer. According to claim 1, And the first layer comprises at least one of Cr and Cu. According to claim 1, The single layer is a plasma display panel comprising an Ag material. According to claim 1, The single layer, The plasma display panel is formed by mixing the materials constituting the first layer and the second layer.
KR1020070068109A 2007-07-06 2007-07-06 Plasma display panel KR20090004136A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020070068109A KR20090004136A (en) 2007-07-06 2007-07-06 Plasma display panel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020070068109A KR20090004136A (en) 2007-07-06 2007-07-06 Plasma display panel

Publications (1)

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KR20090004136A true KR20090004136A (en) 2009-01-12

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KR1020070068109A KR20090004136A (en) 2007-07-06 2007-07-06 Plasma display panel

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