KR100626062B1 - Plasma display apparatus of multi screen type - Google Patents

Abstract

The present invention discloses a multi-screen plasma display device. According to the present invention, an image is displayed by a gas discharge, the plasma display panel having a screen having a long side length of more than twice the short side length so that a plurality of screen regions can be arranged; And a circuit unit which drives the plasma display panel to display an image from the screen areas.

Description

Plasma display apparatus of multi screen type

1 is an exploded perspective view showing a multi-screen plasma display device according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view illustrating a portion of the plasma display panel of FIG. 1;

3 is a front view illustrating an example in which a plurality of screen regions are arranged in the plasma display panel of FIG. 1.

4 is a configuration diagram schematically illustrating a state in which electrodes are disposed in the screen regions of FIG. 3.

<Brief description of the major symbols in the drawings>

110. Plasma display panel 122. Front electrode

132.Rear electrode 150.Circuit part

X ₁ , X ₂ ..., X _n-1 , X _n ..common electrode

Y ₁ , Y ₂ , ..., Y _n-1 , Y _n ..scan electrode

A ₁ , A ₂ , ..., A _m-1 , A _m ..address electrode

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plasma display device, and more particularly, to a multi-screen plasma display device in which images can be displayed by being arranged in a plurality of screen areas.

Recently, many flat panel display devices such as a plasma display device and a liquid crystal display device have been widely used. Among these, the plasma display apparatus displaying an image using gas discharge is excellent in various display capacities such as display capacity, brightness, contrast, afterimage, and viewing angle, and enables thin and large-scale image display. I am in the limelight. Such a flat panel display device is used as a monitor of a computer and other various systems. Since a general monitor has a small screen size for showing a plurality of images to a user at the same time, recently, images are displayed on the monitors using a plurality of monitors. There is an example so that each can be displayed.

However, when using a plurality of monitors as in the above example, a large amount of left and right spaces for installing the monitors are required. In addition, since there is an area where no image is displayed between the monitors, such an area is difficult to apply in an unnecessary system, and there is a concern that a problem such as distraction of the user may occur.

SUMMARY OF THE INVENTION An object of the present invention is to provide a multi-screen plasma display apparatus in which independent images can be arranged and displayed in a plurality of screen regions.

The multi-screen type plasma display device according to the present invention for achieving the above object, the image is displayed by the gas discharge, the long side length is two times or more of the short side length so that a plurality of screen areas can be arranged is provided with a screen One plasma display panel; And a circuit unit which drives the plasma display panel to display an image from screen areas.

The plasma display panel may include a front substrate, front electrodes formed to extend in a direction behind the front substrate, a rear substrate formed to face the front substrate, and a front electrode in front of the rear substrate. Rear electrodes formed to extend in a direction crossing the direction in which they extend, the barrier ribs formed to partition discharge spaces in which the front electrode and the rear electrode are respectively disposed between the front substrate and the rear substrate, and the discharge It is preferable to have a phosphor layer formed in the spaces, and a discharge gas filled in the discharge spaces.

Here, among the front electrode and the rear electrode, the length of the relatively extended electrode is preferably at least two times the length of the shortly extended electrode.

Here, the front electrodes are formed as a pair of common electrodes and scan electrodes, respectively, and serve as sustain electrode pairs to generate sustain discharge, and the rear electrodes act as address electrodes to generate address discharge with the scan electrodes. .

Here, the length of the address electrode is preferably at least twice the length of the sustain electrode pair.

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

1 is an exploded perspective view of a multi-screen screen plasma display device according to an embodiment of the present invention, Figure 2 is an exploded perspective view showing a part of the plasma display panel of FIG. .

1 and 2, the multi-screen type plasma display apparatus 100 includes a plasma display panel 110 in which different images are arranged and displayed by gas discharge, and disposed behind the plasma display panel 110. The chassis base 140 and the circuit unit 150 mounted to the rear of the chassis base 140 is provided.

Any one of various plasma display panels may be employed as the plasma display panel 110. As an example, an AC plasma display panel having a surface discharge type 3-electrode structure as shown in FIG. 2 is employed. Can be.

The illustrated plasma display panel 110 includes a front panel 120 and a back panel 130 that is coupled to face the front panel 120.

The front panel 120 is provided with a front substrate 121, and the front substrate 121 is formed of a transparent material such as transparent glass having light transmittance so that an image can be transmitted and displayed. In front of the front substrate 121, the front electrodes 122 extend in one direction and are spaced apart from each other.

The front electrodes 122 may be configured in various ways. For example, the front electrodes 122 may have a common gap (X ₁ , X ₂ ..., X _n-1 , X _n ) that form a discharge gap therebetween. ) And scan electrodes (Y ₁ , Y ₂ ,..., Y _n-1 , Y _n ) may act as sustain electrode pairs for generating sustain discharge. In addition, the common electrodes X ₁ , X ₂ ..., X _n-1 , X _n have a common transparent electrode formed on the rear surface of the front substrate 121 and a common bus electrode connected to the rear surface thereof. The scan electrodes Y ₁ , Y ₂ ,..., Y _n-1 , Y _n may include a scan transparent electrode formed on the rear surface of the front substrate 121 and a scan bus electrode connected to the rear surface thereof. have. Here, the common and scan transparent electrodes are formed of a transparent material such as indium tin oxide (ITO) to transmit visible light. The common and scan bus electrodes are formed to have a width smaller than that of the common and scan transparent electrodes and are respectively connected to the common and scan bus electrodes to apply driving control signals. The common and scan bus electrodes have relatively low electrical conductivity. In order to improve the electrical resistance of the common and scan transparent electrodes formed of ITO, it is preferable to be formed of a metal having excellent conductivity.

The front electrodes 122 may be covered by a front dielectric layer 123 formed of a dielectric on a back surface of the front substrate 121, and a back surface of the front dielectric layer 123 may be covered by a passivation layer 124. The passivation layer 124 may be formed of an MgO film that may prevent damage to the front dielectric layer 123 due to ions generated during discharge and release secondary electrons to increase discharge efficiency.

The rear panel 130 disposed to face the front panel 120 as described above is provided with a rear substrate 131. In front of the rear substrate 131, the rear electrodes 132 extend in a direction crossing the direction in which the front electrodes 122 extend and are spaced apart from each other. The rear electrodes 132 are addresses that cause address discharge with the scan electrodes Y ₁ , Y ₂ ,..., Y _n-1 , Y _n when the front electrodes 122 act as sustain electrode pairs. It acts as electrodes A ₁ , A ₂ ,..., A _m-1 , A _m . The address electrodes A ₁ , A ₂ ,..., A _m-1 , A _m are formed on the front surface of the rear substrate 131 in a stripe shape with a dielectric material on the front surface of the rear substrate 131. It may be covered by the formed back dielectric layer 133.

Discharge spaces of a predetermined pattern on the front surface of the back dielectric layer 133, as shown in the figure, are divided into discharge cells 135 each of which is closed, and cross talk between adjacent discharge cells 135 is performed. To prevent the barrier rib 134 may be formed in a matrix form. In more detail, the illustrated partition wall 134 extends in one direction and is spaced apart from each other, and the first partition walls 134a extend from each side surface of the first partition walls 134a. Each of the second barrier ribs 134b may be formed to extend in a direction intersecting with the predetermined direction and be spaced apart from each other. Here, the first barrier ribs 134a are disposed in parallel with at least one address electrode A ₁ , A ₂ ,..., A _m-1 , A _m . On the other hand, the partition wall is not limited to the above, any structure can be used as long as it can limit the discharge cells to the pixel array pattern.

In the discharge cells 135 partitioned as described above, phosphor layers 136 that are excited by ultraviolet rays generated during discharge and emit visible light are disposed. As illustrated, the phosphor layers 136 are formed on the side surface of the barrier rib 134 and the entire surface of the back dielectric layer 133 surrounded by the barrier rib 134. The phosphor layers 136 are formed as one phosphor selected from among red, green, and blue phosphors that emit red, green, and blue visible light, respectively, to implement a color. Accordingly, the red, green, and blue phosphor layers are formed. Will be made. The red, green, and blue subpixels may be formed in the red, green, and blue subpixels according to which of the phosphor layers are disposed in the discharge cells. By being included in the unit pixel, various colors are expressed according to the combination of the three primary colors. The discharge cells 135 are filled with the normal discharge gas, and in the state in which the discharge gas is filled, the discharge cells 135 are formed on the sealing member (not shown) formed at the edges of the front panel 120 and the rear panel 130. As a result, the front panel 120 and the back panel 130 are sealed to each other.

At least one chassis base 140 disposed at the rear of the plasma display panel 110 having the above structure is formed of a material such as aluminum, and arranged in parallel with the plasma display panel 110 to support it. Meanwhile, the heat generated from the plasma display panel 110 is received and released to the outside. The chassis base 140 may be provided with a bending part 141 whose edge is bent backward so that bending or bending deformation may be prevented. In addition, reinforcing members 142 may be installed at the rear of the chassis base 140. The reinforcing members 142 are made of a metal material and are coupled to the rear surface of the chassis base 140 to prevent bending or bending deformation of the chassis base 140, and in addition, to prevent the heat radiating from the chassis base 140. It increases the heat dissipation efficiency.

The chassis base 140 is coupled to the plasma display panel 110 by an adhesive member 161 such as a double-sided tape, and a heat conductive member 162 is interposed between the chassis base 140 and the plasma display panel 110. As a result, heat generated from the plasma display panel 110 may be transferred to the heat conductive member 162 to be discharged to the outside.

The circuit unit 150 is installed at the rear of the chassis base 140 to drive the plasma display panel 110. The circuit unit 150 is electrically connected by the plasma display panel 110 and the connection member 151 to transmit a signal. As the connection member 151, a flexible printed cable (FPC) or a tape carrier package (TCP) in which at least one element is mounted on the flexible printed cable may be employed. The circuit unit 150 is accommodated by a case not shown together with the plasma display panel 110 and the chassis base 140.

Meanwhile, according to an aspect of the present invention, as shown in FIG. 3, the plasma display panel 110 is formed of a single panel having a screen size such that a plurality of screen regions can be arranged, thereby enabling the multi-screen plasma. The display apparatus 100 is configured.

According to the present embodiment, the plasma display panel 110 is illustrated as having three screen areas as the first, second, and third screen areas. However, since the plasma display panel 110 is exemplary, the plasma display panel 110 may have two or more screen areas. It just needs to be the screen size of. As shown in the drawing, the first, second, and third screen areas are arranged in one row along the left and right directions in accordance with the eye height of the user, which may be advantageous in securing an installation space, but is not limited thereto.

As described above, the plasma display panel 110 in which two or more screen areas are arranged in one row along the left and right directions may be configured such that the long side length LE has a screen size at least two times the short side length SE. This is because each screen area can be set such that the length in the left and right directions, which is typically a level suitable for a user, is set equal to or larger than the length in the up and down directions.

In the first, second, and third screen areas arranged in the plasma display panel 110, independent images are displayed as shown in the drawing, and the circuit unit 150 is configured to perform this function. For example, the circuit unit 150 receives a central control unit for processing various image signals such as an image signal input from the outside or an image signal generated by the image software stored therein, and the signals processed from the central control unit, respectively. It may be configured to include separate controls for displaying independent images in the screen areas. In this case, at least some areas of the screen areas may be displayed with the same images or may be configured with a circuit unit to be displayed with different images.

As described above, as the plasma display panel 110 is configured as a single panel having a plurality of screen regions so that the images can be displayed on the screen regions, it is not only easier to view all the images at the same time, Installation space can be saved as compared to using a plurality of separate monitors as in the prior art. In addition, the spacing between the images can be adjustable, so that it can be used suitably for a system requiring such a condition.

The electrodes provided in the plasma display panel 110 as described above may have a structure as shown in FIG. 4.

As shown, the common electrodes X ₁ , X ₂ ..., X _n-1 , X _n are provided in the plasma display panel 110 and the scan electrodes Y ₁ , Y ₂ ,..., Y _n-1 , Y _n are extended in parallel in the vertical direction, respectively, and the address electrodes A ₁ , A ₂ ,..., A _m-1 , A _m are common electrodes X ₁ , X ₂ .. , X _n-1 , X _n ) and scan electrodes Y ₁ , Y ₂ ,..., Y _n-1 , Y _n extend in a direction intersecting with the extending direction, that is, in a left-right direction, respectively. Are arranged. The common electrodes X ₁ , X ₂ ..., X _n-1 , X _{n are} arranged in this manner, scan electrodes Y ₁ , Y ₂ ,..., Y _n-1 , Y _n , and addresses In the electrodes A ₁ , A ₂ ,..., A _m-1 , A _m , two or more screen areas, as shown, the first, second and third screen areas are arranged in one row along the left and right directions. Preferably, the extended lengths of the address electrodes A ₁ , A ₂ ,..., A _m-1 , A _m are common electrodes X ₁ , X ₂ ..., X _n-1 , X _n. ) Or at least twice the extended length of the scan electrodes Y ₁ , Y ₂ ,..., Y _n-1 , Y _n . One ends of the common electrodes X ₁ , X ₂ ..., X _n-1 , X _n having the above structure, and scan electrodes Y ₁ , Y ₂ ,..., Y _n-1 , Y _n The driving control signal is selectively applied from the circuit unit 150 to one ends of the terminals and one ends of the address electrodes A ₁ , A ₂ ,..., A _m-1 , A _m . In the three screen areas, images as shown in FIG. 3 can be displayed respectively.

As described above, according to the present invention, as the plasma display panel is configured as a single panel so that a plurality of screen areas may be provided, it may be easier to simultaneously view all the plurality of images, and as described above, a plurality of separate Installation space can be saved compared to using monitors. In addition, the spacing between the images can be adjusted to have an effect that can be applied to various systems.

Although the present invention has been described with reference to one embodiment shown in the accompanying drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. Could be. Accordingly, the true scope of protection of the invention should be defined only by the appended claims.

Claims (11)

An image is displayed by a gas discharge, the plasma display panel having a screen having a long side length at least twice the length of the short side so that a plurality of screen regions can be arranged; And And a circuit unit which drives the plasma display panel to display an image from screen areas. The method of claim 1, The plasma display panel is a multi-screen plasma display device characterized in that the screen area is arranged in a row along the left and right directions when viewed from the user. The method of claim 1, And the circuit unit displays images independent from screen areas of the plasma display panel, respectively. The method of claim 3, wherein And at least some of the images displayed from the screen areas of the plasma display panel are the same or different. The method of claim 2, And each of the screen regions has a length in a horizontal direction equal to or greater than a length in a vertical direction. The method of claim 1, The plasma display panel includes a front substrate, front electrodes formed to extend in one direction behind the front substrate, a rear substrate formed to face the front substrate, and the front electrodes extending in front of the rear substrate. Rear electrodes formed to extend in a direction intersecting with the first direction, partition walls formed to partition discharge spaces in which the front electrode and the rear electrode are respectively disposed between the front substrate and the rear substrate, and the discharge spaces; And a discharge gas filled in the discharge spaces. The method of claim 6, Among the front electrode and the rear electrode, the length of the relatively extended electrode is a multi-screen plasma display device, characterized in that more than twice the length of the shortly extended electrode. The method of claim 6, The front electrodes are formed as a pair of common electrodes and scan electrodes, respectively, and serve as sustain electrode pairs for generating sustain discharge, and the rear electrodes serve as address electrodes for generating address discharge with the scan electrodes. Screen type plasma display device. The method of claim 8, The length of the address electrode is a multi-screen plasma display device, characterized in that more than twice the length of the sustain electrode pair. The method of claim 6, And at least one of the front electrodes and the rear electrodes is covered by a dielectric layer. The method of claim 1, At least one chassis base for supporting them between the plasma display panel and the circuit portion is further provided.

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