KR20060010296A - Plasma display panel - Google Patents

Abstract

The present invention relates to an electrode structure of a plasma display panel which improves brightness and efficiency or driving characteristics.

In the plasma display panel including a scan bus electrode and a sustain bus electrode connecting different cells in a straight line, the electrode structure of the plasma display panel according to the present invention includes one scan bus electrode and one sustain bus electrode. And a protruding 'T-shaped electrode' and 'inverse T-shaped electrode' forming three discharge gaps in the cell.

In addition, the transparent electrode has a 'H' shape so that three discharge gaps are formed in one cell.

The present invention has the effect of improving driving characteristics such as excellent brightness and efficiency or jitter by forming a transparent electrode and a bus electrode forming three discharge gaps in one cell in the electrode structure of the plasma display panel.

Plasma Display Panel, T-shaped Electrode, Inverted T-shaped Electrode, Discharge Gap

Description

Plasma Display Panel {Plasma Display Panel}

1A is a diagram showing the structure of a conventional three-electrode alternating surface discharge type plasma display panel.

1B is a diagram showing an electrode structure of an upper substrate of a conventional three-electrode AC surface discharge type plasma display panel.

FIG. 2A illustrates the electrode structure of the upper substrate of the three-electrode alternating surface discharge type plasma display panel according to the first embodiment of the present invention.

2B and 2C show a second embodiment and a third embodiment of the present invention;

***** Explanation of symbols for the main parts of the drawing *****

16b, 16b ₁ , 16b ₂ : bus electrodes d ₁ , d ₂ , d ₃ : distance

210, 230, 250: discharge gap 220a, 220b, 220c: cell

240: T-shaped electrode 260: Inverted T-shaped electrode

The present invention relates to an electrode structure of a plasma display panel, and more particularly, to a driving apparatus of a plasma display panel including an electrode pad.

In general, a plasma display panel (hereinafter referred to as "PDP") displays an image including a character or a graphic by emitting phosphors by 147 nm ultraviolet rays generated when a He + Xe or Ne + Xe inert mixed gas is discharged. Done. Such a PDP is not only thin and easy to enlarge, but also greatly improved in quality due to recent technology development.

In particular, the three-electrode AC surface discharge type PDP has advantages of low voltage driving and long life because wall charges are accumulated on the surface during discharge and protect the electrodes from sputtering caused by the discharge.

1A is a diagram showing the structure of a conventional three-electrode AC surface discharge type plasma display panel. Referring to FIG. 1A, in the three-electrode AC surface discharge type PDP 100, an upper substrate 10, which is a display surface on which an image is displayed, and a lower substrate 20 forming a rear surface are coupled in parallel with a predetermined distance therebetween. The upper substrate 10 is made of a scan electrode 30Y and a sustain electrode 30X, that is, a transparent electrode 16a formed of a transparent ITO material and a metal material to mutually discharge and maintain light emission of a cell in one pixel below. The scan electrode 30Y provided with the bus electrode 16b and the sustain electrode 30X provided in pairs are formed in pairs.

The sustain electrode 30X is covered by a dielectric layer 11 that limits the discharge current and insulates the electrode pairs, and a protective layer in which magnesium oxide (MgO) is deposited on the upper surface of the dielectric layer 11 to facilitate discharge conditions. (12) is formed. The lower substrate 20 performs address discharge at a portion where a plurality of discharge spaces, that is, barrier ribs 23 of stripe type (or well type) for forming a cell, are arranged in parallel and intersect with the sustain electrode 30X. Thus, a plurality of address electrodes 22 which generate vacuum ultraviolet rays are arranged in parallel with the partition wall 23. In addition, a dielectric layer 21 is formed on the top surface of the address electrode 22, and the top surface of the dielectric layer 21 emits visible light for image display during address discharge.

FIG. 1B is a diagram showing the electrode structure of the upper substrate 10 of the conventional three-electrode AC surface discharge type plasma display panel. As shown, the sustain electrode 30X and the scan electrode 30Y corresponding to one subpixel are formed in the discharge space, and the bus electrode 16b is formed under the transparent electrode 16a provided in the electrodes. do.

However, since the distance d ₁ between the bus electrode 16b and the bus electrode 16b for forming the discharge in question in the conventional electrode structure shown in FIG. 1B becomes long, a strong discharge does not occur. Therefore, the brightness is reduced and driving characteristics such as jitter are not good.

The present invention is to solve the above problems, the plasma display panel which can improve the driving characteristics such as excellent brightness and efficiency or jitter by forming a transparent electrode and a bus electrode forming three discharge gaps in one cell It is to provide an electrode structure of.

In order to achieve the above object, a plasma display panel including a scan bus electrode and a sustain bus electrode, in which different cells are connected in a straight line, wherein the scan bus electrode and the sustain bus electrode have three discharges in one cell. It characterized in that it comprises a protruding 'T-shaped electrode' and 'inverted T-shaped electrode' forming a gap.

In addition, the transparent electrode has a 'H' shape so that three discharge gaps are formed in one cell.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

2A is a diagram showing an electrode structure of an upper substrate of a three-electrode alternating surface discharge plasma display panel according to a first embodiment of the present invention. As shown in the drawing, three discharge gaps 210 are disposed in predetermined cells 220a, 220b, and 220c of the scan bus electrode 16b ₂ and the sustain bus electrode 16b ₁ , which connect different cells in a straight line. Protruding 'T-shaped electrode' 240 and 'inverted T-shaped electrode' 260 are formed under the transparent electrode 16a.

At this time, the transparent electrode 16a has a 'H' shape so that three discharge gaps 210, 230, and 250 are formed in predetermined cells 220a, 220b, and 220c.

In addition, the 'T-shaped electrode' 240 and the 'inverted T-shaped electrode' 260 are alternately formed on the vertical partition wall 23. In addition, the 'T-shaped electrode' 240 protrudes from the lower portion of the cells 220a and 220b to the upper portion, and the 'T-shaped electrode' 260 is moved from the upper portion to the lower portion of the cells 220b and 220c. It protrudes.

At this time, the 'T-shaped electrode' 240 is located between the first discharge gap 210 and the second discharge gap 230, the lower portion of the central portion (C ₁ ) of the transparent electrode 16a having a 'H' shape Is formed. The 'T-shaped electrode' 240 formed as described above is connected to the lower portion of the central portion C ₂ of the transparent electrode 16a of the other cell 220b in a straight line.

In addition, the 'reverse T-shaped electrode' 260 is located between the second discharge gap 230 and the third discharge gap 250 and is below the central portion C ₃ of the transparent electrode 16a having an 'H' shape. Is formed on the part. The 'reverse T-shaped electrode 260' formed as described above is connected to the lower portion of the central portion C ₄ of the transparent electrode 16a of the other cell 220c in a straight line.

In this way, T-shaped electrode "240 and the" reverse T-shaped electrode (260) and a bus electrode that includes the (, 16b ₁ 16b ₂₎ is a bus and a bus electrode (16b ₁₎ for discharging to form the electrode (16b ₂₎ Since the distances d ₂ and d ₃ are small, a strong discharge occurs. Thus, driving characteristics such as brightness and efficiency or jitter are improved.

2B and 2C show a second embodiment and a third embodiment of the present invention. As shown in FIG. 2B, the 'T-shaped electrode 240' is formed at a lower portion of the transparent electrode 16a having an 'H' shape, which is a portion where the first discharge gap 210 is formed.

The 'T-shaped electrode' 240 formed at the lower portion of the transparent electrode 16a is connected to the lower portion of the transparent electrode 16a positioned in the other cell 220b in a straight line.

In addition, the 'reverse T-shaped electrode' 260 is formed at a lower portion of the transparent electrode 16a having an 'H' shape, which is a portion where the third discharge gap 250 is formed.                     

The 'reverse T-shaped electrode' 260 formed on the lower portion of the transparent electrode 16a is formed by connecting the lower portion of the transparent electrode 16a positioned in the other cell 220c in a straight line.

As such, the 'T-shaped electrode' 240 and the 'inverted T-shaped electrode' 260 are formed in the first discharge gap 210 and the third discharge gap 250 so that the top and bottom of the cells 220a, 220b, and 220c are formed. Strong discharge occurs on the side portion. It also improves driving characteristics such as brightness and efficiency or jitter.

As illustrated in FIG. 2C, the 'T-shaped electrode 240' is formed at a lower portion of the transparent electrode 16a having an 'H' shape, which is a portion where the second discharge gap 230 is formed.

The 'T-shaped electrode' 240 formed at the lower portion of the transparent electrode 16a is connected to the lower portion of the transparent electrode 16a positioned in the other cell 220b in a straight line.

In addition, the 'reverse T-shaped electrode' 260 is also formed at a lower portion of the transparent electrode 16a having an 'H' shape, which is a portion where the second discharge gap 230 is formed.

The 'reverse T-shaped electrode' 260 formed at the lower portion of the transparent electrode 16a is connected to the lower portion of the transparent electrode 16a positioned in the other cell 220c in a straight line.

As such, by forming the 'T-shaped electrode' 240 and the 'inverted T-shaped electrode' 260 in the second discharge gap 230, a strong discharge occurs in the central portion of the cells 220a, 220b, 220c. It also improves driving characteristics such as brightness and efficiency or jitter.

Accordingly, the protruding 'T-shaped electrode' 240 and the 'inverted T-shaped electrode' 260 forming three discharge gaps 210, 230, and 250 in one cell 220a, 220b, 220c are discharged. Since the distances d ₂ and d ₃ between the bus electrode 16b ₁ and the bus electrode 16b ₂ are formed to be small, a strong discharge occurs. It also improves driving characteristics such as brightness and efficiency or jitter.

As described above, it will be understood by those skilled in the art that the above-described technical configuration may be implemented in other specific forms without changing the technical spirit or essential features of the present invention. Therefore, the above-described embodiments are to be understood as illustrative and not restrictive in all respects, and the scope of the present invention is indicated by the appended claims rather than the detailed description, and the meaning and scope of the claims and All changes or modifications derived from the equivalent concept should be interpreted as being included in the scope of the present invention.

As described above, the present invention can improve driving characteristics such as excellent brightness and efficiency or jitter by forming a transparent electrode and a bus electrode forming three discharge gaps in one cell in the electrode structure of the plasma display panel. It works.

Claims (7)

In a plasma display panel including a scan bus electrode and a sustain bus electrode in which different cells are connected in a straight line, And the scan bus electrode and the sustain bus electrode include protruding 'T-shaped electrodes' and 'inverse T-shaped electrodes' forming three discharge gaps in one cell. The method of claim 1, The scan bus electrode and the sustain bus electrode are formed with alternating T-shaped electrodes and inverted T-shaped electrodes on a vertical partition wall. The method of claim 1, Wherein the 'T-shaped electrode' protrudes from the lower portion of the cell to the upper portion and the 'reverse T-shaped electrode' protrudes from the upper portion of the cell to the lower portion. The method of claim 1, And the 'T-shaped electrode' and the 'inverted T-shaped electrode' protrude from the upper and lower parts of the cell to the center part. The method of claim 1, And the transparent electrode has an 'H' shape so that three discharge gaps are formed in the one cell. The method according to claim 1 and 5, And the transparent electrodes on upper and lower portions of the cell are formed on the 'T-shaped electrode' and the 'inverted T-shaped electrode'. The method according to claim 1 and 5, And the transparent electrode positioned at a central portion of the cell is formed on the 'T-shaped electrode' and the 'inverted T-shaped electrode'.

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