KR20080001114A - Plasma display apparatus - Google Patents

Abstract

A plasma display device is provided to improve heat radiating performance of the PDP by forming a space for an air flow between adhesive agents. A plasma display device includes a PDP(Plasma Display Panel)(110), a chassis(180), and an adhesive member. The PDP displays an image using gas discharges. The chassis is arranged on one surface of the PDP and supports the PDP. The adhesive member attaches the PDP to the chassis. The adhesive member includes first and second adhesive units. The first adhesive unit(130) is intermittently arranged. The second adhesive unit(150) is intermittently arranged between the first adhesive units on an attachment line which is elongated in a length direction of the first adhesive unit.

Description

Plasma display apparatus

1 is a perspective view showing a rear surface side of a plasma display panel in a conventional plasma display device.

2 is an exploded perspective view showing a plasma display device according to an embodiment of the present invention.

3 is a front view illustrating a rear side of a plasma display panel in the plasma display device of FIG. 2.

4 is an exploded perspective view showing a plasma display device according to another embodiment of the present invention.

FIG. 5 is a front view illustrating a rear side of a plasma display panel in the plasma display device of FIG. 3.

Explanation of symbols on the main parts of the drawings

100: plasma display device 111: front panel

112: rear panel 120: heat dissipation sheet

130: first adhesive member 131: first horizontal adhesive member

132: first vertical adhesive member 140: separation space

150: second bonding member 160: circuit portion

170: signal transmission means

The present invention relates to a plasma display device, and more particularly, to a plasma display device in which foreign material intrusion preventing members are disposed in correspondence to spaced spaces between adhesive members disposed to be discontinuously spaced apart.

Plasma display device is a flat panel display device that realizes images by using gas discharge phenomenon. It has excellent characteristics such as large screen, high definition, ultra thin, light weight, and wide viewing angle, and it is simpler to manufacture and larger in size than other flat panel display devices. It is attracting attention as a large flat panel display device.

Such plasma display apparatuses generally include a plasma display panel that displays an image such as an image by emitting phosphors by ultraviolet rays generated during gas discharge, and a driving device that receives an image signal from the outside and drives the plasma display panel to display an image, and both of them. And signal transmission means for mediating electrical signal transmission therebetween.

1 is a perspective view of a panel portion of a conventional plasma display device, which is viewed from the rear side of the plasma display panel. Referring to FIG. 1, a conventional plasma display apparatus includes a plasma display panel 10, a heat dissipation sheet 20, and an adhesive member 30. Here, the adhesive member 30 includes a vertical adhesive member 32 extending in the vertical direction and a horizontal adhesive member 31 discontinuously disposed in the horizontal direction.

The plasma display panel 10 is formed by combining the front panel 11 and the rear panel 12. The rear panel has a heat dissipation sheet 20 for quickly dissipating high temperature heat generated from the panel, and a double-sided tape for coupling the plasma display panel to the chassis (not shown) along the edge of the plasma display panel. 30) is attached. The chassis is required to have sufficient rigidity to stably support the plasma display panel. In some cases, the chassis may further include a reinforcing material for reinforcing rigidity.

In general, the adhesive member, which is a double-sided tape on the rear surface of the plasma display panel, is disposed along the edge of the plasma display panel. Here, since the horizontal adhesive member 31 is formed discontinuously, a space 40 is formed along the adhesive line between the horizontal adhesive members.

However, there is a problem that foreign matter enters into the spaced space between the horizontal adhesive members 31.

SUMMARY OF THE INVENTION An object of the present invention is to provide a plasma display apparatus capable of preventing foreign matter from invading directly into a space between two double-sided tapes by zigzag discontinuous double-sided tapes in the plasma display apparatus. .

In addition, the present invention provides a plasma display device that can arrange the signal transmission means corresponding to the spaced space between the double-sided tapes discontinuously spaced to prevent foreign matter from invading directly through the spaced space between the double-sided tape due to the signal transmission means. It aims to provide.

In order to achieve the above and other objects, one embodiment of the present invention is a plasma display panel for displaying an image using a gas discharge; A chassis disposed on one surface of the plasma display panel to support the plasma display panel; An adhesive member attaching the plasma display panel to the chassis, wherein the adhesive member includes a first adhesive member disposed discontinuously and the first adhesive member on an adhesive line extending in the longitudinal direction of the first adhesive member. Provided is a plasma display device including a second adhesive member discontinuously disposed to correspond to a spaced space between the two.

Here, the length of the second adhesive member is greater than or equal to the length of the separation space between the first adhesive members.

In some embodiments, the adhesive line of the second adhesive member may be disposed closer to the edge of the plasma display panel than to the adhesive line of the first adhesive member.

In some embodiments, the adhesive line of the first adhesive member may be disposed closer to the edge of the plasma display panel than the adhesive line of the second adhesive member.

The first adhesive member and the second adhesive member are spaced apart from each other.

The adhesive member is preferably a double-sided tape.

The heat dissipation sheet may be further disposed between the plasma display panel and the chassis to transfer heat generated from the plasma display panel to the chassis.

Another embodiment of the present invention, a plasma display panel for displaying an image using a gas discharge; A chassis disposed on one surface of the plasma display panel to support the plasma display panel; An adhesive member attaching the plasma display panel to the chassis; A circuit unit disposed on a surface opposite to the plasma display panel of the chassis; And a signal transmission means for connecting the circuit portion and the plasma display panel, wherein the adhesive member is disposed discontinuously, and the signal transmission means is disposed between the adhesive members on the adhesive line extending in the longitudinal direction of the adhesive member. The present invention provides a plasma display device disposed at a position corresponding to a space apart from each other.

In this case, the width of the signal transmission means is a separation space between the bonding member is more than the length.

The signal transmission means connects the plasma display panel and the circuit unit beyond a space between the adhesive members.

The spaced space between the adhesive members is formed between the adhesive members arranged horizontally.

The signal transmitting means may be a tape carrier package.

The signal transmitting means may be a flexible printed circuit.

The adhesive member may be a double-sided tape.

Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a perspective view showing a plasma display device according to an embodiment of the present invention.

Referring to FIG. 2, the plasma display apparatus 100 according to an exemplary embodiment of the present invention may include a plasma display panel 110, a heat dissipation sheet 120, a first adhesive member 130, and a second adhesive member 150. And a chassis 180 and a circuit unit 160.

The plasma display panel 110 includes a front panel 111 and a rear panel 112 that form a discharge space by combining edges facing each other to face each other. Although not shown in the drawing, the discharge space between the front panel 111 and the rear panel 112 is divided into a plurality of discharge cells by partition walls formed in a predetermined shape such as a stripe or a lattice.

When a predetermined electric field is applied to the discharge cell, a discharge gas that discharges ultraviolet rays while forming plasma gas is injected. In the discharge cells, phosphors that emit light by ultraviolet rays emitted from the discharge gas are formed.

The front panel, the rear panel or the partition wall is provided with a plurality of electrodes for forming an electric field to cause a discharge in the discharge cell. These electrodes are formed on the front panel and the rear panel to form a first electrode and a second electrode, and the opposite discharge electrodes are disposed so as to cross each other, or the first and second electrodes maintaining the discharge on the front panel to face each other and the rear It can be arranged in various ways, such as a surface discharge electrode consisting of three electrodes for placing a third electrode used to select a cell causing a discharge in the panel. For example, in the case of a three-electrode surface discharge plasma display panel, a plurality of scan electrode lines and a plurality of sustain electrode lines are alternately arranged on the front panel, and a plurality of address electrode lines are arranged on the scan electrode lines and the sustain electrode. It is disposed on the rear panel to cross the lines, and the area where these electrode lines cross each corresponds to each discharge cell.

The terminal parts of the electrode lines are arranged along the edge of the front panel or the rear panel, and the electrode line terminal parts are connected to the signal transmitting means 170 so as to provide a current or signal necessary for driving the plasma display panel 110 to the circuit part ( 160).

The heat dissipation sheet 120 is attached to the rear surface of the plasma display panel 110. The heat dissipation sheet should be made of a material having excellent thermal conductivity, and therefore, made of a material synthesized using graphite (graphite) having a large thermal conductivity as a main component. The heat dissipation sheet 120 is a rectangular sheet shape formed to correspond to the size of the plasma display panel and is attached to the center of the plasma display panel in consideration of heat dissipation efficiency. The adhesive members 130 and 150, which are double-sided tapes, are disposed along an edge on a rear surface of the plasma display plasma display panel 110 that faces the chassis 180.

The adhesive members may include first adhesive members including first horizontal adhesive members 131 and first vertical adhesive members 132 attached to the rear surface of the plasma display panel continuously or intermittently along the edge of the plasma display panel. The second adhesive members 150 are disposed discontinuously in correspondence to the separation space 140 between the 130 and the first adhesive members 130.

The first horizontal adhesive members 131 attached to the upper side and the lower side of the plasma display panel are discontinuously attached at predetermined intervals. As a result, the bonding strength is slightly reduced, but an air flow path is formed between the double-sided tapes to increase the heat radiation effect.

However, since a predetermined space 140 is formed between the first horizontal adhesive members 131 attached to the upper side and the lower side of the plasma display panel as described above, foreign matter may invade when the space is left as it is. . Therefore, the second adhesive member 150 is disposed at a position corresponding to the spaced space 140 between the first horizontal adhesive members. At this time, in order to prevent the second adhesive member 150 from blocking the air flow path, the second adhesive member 150 and the first horizontal adhesive member 131 are spaced apart at appropriate intervals, the second adhesive member 150 is also discontinuously arranged to secure the air flow path.

That is, the position of the adhesive member is set such that the edge of the plasma display panel does not directly communicate with the outside through the adhesive member.

Although not shown in the drawings, the first vertical adhesive member 132 may also be discontinuously spaced apart, and in this case, the second adhesive member may be disposed to correspond to the separation space to prevent foreign matter from entering in the vertical direction. have.

2, the adhesive line of the second adhesive member 150 is disposed closer to the edge of the plasma display panel 110 than the adhesive line of the first horizontal adhesive member 131. However, it is not necessarily limited thereto. Therefore, the adhesive line of the first horizontal adhesive member 131 may be disposed closer to the edge of the plasma display panel than the adhesive line of the second adhesive member 150.

The chassis 180 is coupled to the plasma display panel 110 at the rear to support the plasma display panel 110. The chassis 180 is coupled to the plasma display panel 110 by an adhesive member such as the double-sided tape 130 as described above, but may be coupled to the plasma display panel 110 by various methods.

The chassis 180 has a plate shape to correspond to the plasma display panel 110. The chassis 180 is required to have a high thermal conductivity because it must have sufficient rigidity to stably support the plasma display panel 110 and also must quickly release heat generated in the plasma display panel. Therefore, considering the stiffness and thermal conductivity is made of a metal material such as aluminum. However, in some cases, it is possible to use a plastic or plastic mixture which is simple in manufacturing and advantageous in cost.

On the other hand, the reinforcement 150 is disposed on the back of the chassis to reinforce the rigidity of the chassis 180 and consists of a central reinforcement 151, horizontal reinforcement 152, vertical reinforcement (153). Reinforcements are joined to the chassis by welding, toxing, screwing, riveting or bossing. Reinforcements are also made of aluminum because it is responsible for some of the heat dissipation as well as rigid reinforcement.

The circuit units 160 refer to various circuit boards such as a power supply unit, an X electrode driver, a Y electrode driver, and an address electrode driver of the plasma display device disposed on the rear surface of the chassis. In charge. The circuit parts 160 are connected to the electrodes installed in the plasma display panel by the signal transmitting means 170.

3 is a front view illustrating a rear side of a plasma display panel in the plasma display device of FIG. 2.

Referring to FIG. 3, the relationship between the length of the space 140 between the first horizontal adhesive members 131 and the length of the second adhesive member 150 is illustrated. In order to prevent foreign matter from entering the space 140 between the first horizontal adhesive members 131, the length d2 of the second adhesive member 150 is a space between the first horizontal adhesive members 131. Equal to or longer than the length d1 of 140). Therefore, the second adhesive member 150 completely covers the space 140 between the first horizontal adhesive members 131 in the vertical direction.

4 is a perspective view showing a plasma display device according to another embodiment of the present invention.

Referring to FIG. 4, the plasma display apparatus 200 according to an exemplary embodiment of the present invention may include a plasma display panel 210, a heat dissipation sheet 220, an adhesive member 230, a chassis 280, and a circuit unit 260. , And signal transmission means 252.

The plasma display panel 210 includes a front panel 211 and a rear panel 212 that form a discharge space by combining edges facing each other to face each other. Although not shown in the figure, the discharge space between the front panel 211 and the rear panel 212 is divided into a plurality of discharge cells by partition walls formed in a predetermined shape such as a stripe or a lattice.

When a predetermined electric field is applied to the discharge cell, a discharge gas that discharges ultraviolet rays while forming plasma gas is injected. In the discharge cells, phosphors that emit light by ultraviolet rays emitted from the discharge gas are formed.

The front panel, the rear panel or the partition wall is provided with a plurality of electrodes for forming an electric field to cause a discharge in the discharge cell. These electrodes are formed on the front panel and the rear panel to form a first electrode and a second electrode, and the opposite discharge electrodes are disposed so as to cross each other, or the first and second electrodes holding a discharge on the front panel to face each other and the rear It can be arranged in various ways, such as a surface discharge electrode consisting of three electrodes for placing a third electrode used to select a cell causing a discharge in the panel.

The terminal portions of the electrode lines are arranged along the edge of the front panel or the rear panel, and the electrode line terminal portions are arranged at the upper and lower portions of the chassis and horizontally disposed at the signal transmission means 240 or at the side of the chassis. By being connected to the transfer cables 270, a current or a signal necessary for driving the plasma display panel 210 is received from the circuit unit 260.

The heat dissipation sheet 220 is attached to the rear surface of the plasma display panel 210. The heat dissipation sheet should be formed of a material having excellent thermal conductivity, and therefore, made of a material synthesized with graphite having a large thermal conductivity as a main component. The heat dissipation sheet 220 is a rectangular sheet shape formed to correspond to the size of the plasma display panel and is attached to the center of the plasma display panel in consideration of heat dissipation efficiency. The double-sided tapes 230 and 250 are disposed along an edge on a rear surface of the plasma display plasma display panel 210 that faces the chassis 280.

The adhesive member 230, which is a double-sided tape, includes horizontal adhesive members 231 and vertical adhesive members 232 attached to the rear surface of the plasma display panel continuously or intermittently along the edge of the plasma display panel.

The horizontal adhesive members 231 attached to the upper side and the lower side of the plasma display panel are discontinuously spaced at predetermined intervals. As a result, the bonding strength is slightly reduced, but an air flow path is formed between the adhesive members, which are double-sided tapes, to increase the heat radiation effect.

On the other hand, in order to transfer the electrical signal generated in the circuit unit 260 to the panel, the signal transmitting means 252 is extended to the plasma display panel 210 through the upper or lower portion of the chassis 280. The signal transmission means 252 is electrically connected to the circuit units 260 through the IC chip 254. Since the signal transmission means 252 extends from the rear surface of the chassis 280 to the plasma display panel 210, the signal transmission means 252 crosses the attachment line to which the adhesive members 230 are attached.

However, since a predetermined separation space 240 is formed between the horizontal adhesive members 231 attached to the upper side and the lower side of the plasma display panel as described above, foreign matter may invade when the separation space is left as it is. Therefore, it is necessary to provide a structure that prevents foreign matter from entering into such space.

Referring to the embodiment illustrated in FIG. 4, the signal transmission means 252 is disposed at a position corresponding to the spaced space 240 between the first horizontal adhesive members 231. At this time, the signal transmission means 252 is horizontally spaced apart the adhesive members 231 are spaced at appropriate intervals in order to prevent blocking the air flow path between the adhesive members. In addition, the signal transmission means 252 is also arranged to be spaced apart from each other.

That is, the space between the adhesive members is formed at a position corresponding to the signal transmitting means so that the edge of the plasma display panel does not directly communicate with the outside through the adhesive member.

On the other hand, although not shown in the figure, the vertical adhesive member 232 may also be discontinuously spaced apart, in which case the signal transmission cable 270 is disposed to correspond to the spaced space between the vertical adhesive members foreign matter in the vertical direction Intrusion can be prevented.

The chassis 280 is coupled to the plasma display panel 210 at the rear to support the plasma display panel 210. As described above, the chassis 280 is coupled to the plasma display panel 210 by an adhesive member 230 such as a double-sided tape. However, the chassis 280 may be coupled to the plasma display panel 210 by various methods.

The chassis 280 has a plate shape to correspond to the plasma display panel 210. The chassis 280 is required to have a high thermal conductivity because the chassis 280 must have sufficient rigidity to stably support the plasma display panel 210 and also must quickly release heat generated from the plasma display panel. Therefore, considering the stiffness and thermal conductivity is made of a metal material such as aluminum. However, in some cases, it is possible to use a plastic or plastic mixture which is simple in manufacturing and advantageous in cost.

The circuit units 260 refer to various circuit boards such as a power supply unit, an X electrode driver, a Y electrode driver, and an address electrode driver of the plasma display device disposed on the rear surface of the chassis, and are responsible for generating an electrical signal for image formation by gas discharge. do. The circuit units 260 are connected to the electrodes installed in the plasma display panel by the signal transmitting means 270. Here, the signal transmission means may be a tape carrier package (TCP) or a flexible printed circuit (FPC).

FIG. 5 is a front view illustrating a rear surface side of the plasma display panel in the plasma display device of FIG. 4.

Referring to FIG. 5, the relationship between the length of the space 240 between the horizontal adhesive members 231 and the width of the signal transmission means 252 is illustrated. In order to prevent foreign matter from entering the space 240 between the horizontal adhesive members 231, the width t2 of the signal transmitting means 250 is equal to the length of the space 240 between the horizontal adhesive members 231. is equal to or longer than t1). Therefore, the signal transmission means 252 completely covers the space 240 between the horizontal adhesive members 231 in the vertical direction.

According to the plasma display device according to the present invention, it is possible to prevent the outflow of foreign matter generated in the heat dissipation sheet in contact with the plasma display panel, and to prevent foreign matter from invading from the outside.

In addition, according to the plasma display device according to the present invention, the separation space for the air flow between the adhesive member is secured can improve the heat dissipation performance.

Although the present invention has been described with reference to the embodiments shown in the 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. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

Claims (15)

A plasma display panel which displays an image using gas discharge; A chassis disposed on one surface of the plasma display panel to support the plasma display panel; An adhesive member attaching the plasma display panel to the chassis; The adhesive member is discontinuously disposed so as to correspond to a spaced space between the first adhesive member discontinuously disposed and the first adhesive members on the adhesive line extending in the longitudinal direction of the first adhesive member. A plasma display device comprising a member. The method of claim 1, And the length of the second adhesive member is equal to or greater than the length of the space between the first adhesive members. The method of claim 1, And the adhesive line of the second adhesive member is arranged closer to the edge of the plasma display panel than the adhesive line of the first adhesive member. The method of claim 1, And the adhesive line of the first adhesive member is disposed closer to the edge of the plasma display panel than the adhesive line of the second adhesive member. The method of claim 1, And the first adhesive member and the second adhesive member are spaced apart from each other. The method of claim 1, And the adhesive member is a double-sided tape. The method of claim 1, And a thermally conductive heat dissipation sheet disposed between the plasma display panel and the chassis to transfer heat generated from the plasma display panel to the chassis. A plasma display panel which displays an image using gas discharge; A chassis disposed on one surface of the plasma display panel to support the plasma display panel; An adhesive member attaching the plasma display panel to the chassis; A circuit unit disposed on a surface opposite to the plasma display panel of the chassis; A signal transmission means for connecting the circuit portion and the plasma display panel; And the adhesive member is disposed discontinuously, and the signal transmitting means is disposed at a position corresponding to the spaced space between the adhesive members on the adhesive line extending in the longitudinal direction of the adhesive member. The method of claim 8, The width of the signal transmitting means is a plasma display device, characterized in that the separation space between the adhesive member is greater than the length. The method of claim 8, And the signal transmitting means connects the plasma display panel and the circuit unit beyond a space between the adhesive members. The method of claim 8, And a space between the adhesive members is formed between the adhesive members arranged horizontally. The method of claim 8, And said signal transmitting means is a tape carrier package (TCP). The method of claim 8, And said signal transmitting means is a flexible printed circuit (FPC). The method of claim 8, And the adhesive member is a double-sided tape. The method of claim 8, And a thermally conductive heat dissipation sheet disposed between the plasma display panel and the chassis to transfer heat generated from the plasma display panel to the chassis.

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