TWI309054B - Plasma display panel - Google Patents

Abstract

Disclosed herein is a plasma display panel in which afterimage is improved. The plasma display panel according to the present invention includes a panel unit having an upper plate and a lower plate, a frame that supports circuitry, and a conductive material formed between the panel unit and the frame. As such, a conductive material is formed on a bottom surface of a lower plate of a panel. Thus, charges introduced into the lower plate are properly controlled to improve the waveform stability of the panel. Also, a charge characteristic is improved to implement a stable operation. Accordingly, an afterimage time can be reduced. Further, a sheet of a low hardness and light weight is used. It is thus possible to absorb shock and noise of a PDP, accomplish light weight of the PDP and reduce the materials of the sheet.

Description

1309054 IX. Description of the invention: [Technical field to which the invention pertains] The present invention relates to an electropolymer display panel. More particularly, the present invention relates to a display panel for reducing residual images, in which a conductive material is formed on a lower surface of a bottom plate of the panel, and the ride control is introduced into the back charge, thereby improving the waveform stability of the panel. Sexual and charge characteristics to perform stable operations. In addition, 'Beifa County is good at absorbing vibration and noise and is suitable for lightweight plasma display panels. [Prior Art] Recently, the development of high definition television (HDTV) has been partially completed. With the continuous improvement of HDTV research, image displays (or H) have become more important. As is known, image display devices may include a cathode ray tube (CRT), a liquid day and day display (LCD),

A vacuum fluorescent display (VFD), an electropolymer display panel (hereinafter, referred to as "PDP"), and the like. However, it has not been technically studied to satisfy the display of HDTV. Therefore, people are developing such displays in a complementary manner in different fields. The PDp in the above image display is adapted to display an image by gas discharge. The PDP has the highest resolution and contrast and fast response speed, and is suitable for displaying large areas of images. Therefore, pDp is widely used for display panels for televisions, monitors, advertisements, and the like. 7 Figure 1 is an exploded perspective view showing the structure of a conventional PDP. Figure 2 is a cross-sectional view showing the state of the conventional PDP after coupling. Referring to Figures 1 and 2, the PDP has a front substrate 10 on which a display surface on which an image can be displayed, and a rear substrate 20 constituting a rear surface. The front substrate 10 and the rear substrate 20 are coupled to each other at a certain distance. The sustain electrodes 11 are provided in pairs at the bottom of the front substrate 10, and the sustain electrodes 11 are used to maintain the emission of the cells by the mutual discharge in one element. The sustain electrode 11 serves to limit the discharge current and is covered by the dielectric layer 12 between the pair of insulated electrodes. A protective layer 13 is formed on the opposite surface of the surface of the dielectric layer 12 covering the sustain electrode 11. The rear substrate 20 includes a plurality of discharge spaces, that is, strip-shaped barrier strips 21 for forming cells, and a plurality of address electrodes 22 for performing address discharge at positions where the address electrodes 22 and the sustain electrodes 11 intersect. Produces vacuum ultraviolet rays. At this time, the barrier ribs 21 are disposed in parallel with each other. The address electrodes 22 are disposed in parallel with the barrier strips 21. Further, an R.G.B phosphor layer 23 for emitting visible light for displaying an image in the address discharge is coated on the upper surface of the substrate 20 except for the top of the barrier rib 21. However, this PDP has a problem of generating residual images. For example, if the 1309054 first image is switched to the second image after being turned on for a predetermined time, the time at which the first image disappears is extended by several minutes to several tens of minutes. Moreover, even if the image is switched, the previous image and the subsequent image may overlap. Therefore, the quality of the knead is deteriorated. In addition, the problem with the conventional PDP is that it generates a large amount of noise, is susceptible to vibration and is quite heavy.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to address at least the problems and disadvantages of the prior art. It is an object of the present invention to provide a plasma display panel suitable for absorbing vibration and noise and for light weight.

In one aspect, the present invention provides a plasma display panel comprising a panel unit having a top plate and a bottom plate, a frame supporting the circuit, and a conductive material formed between the panel unit and the frame. In another aspect, the present invention provides a plasma display panel comprising a sheet comprising one or more of a scorpion, an amino phthalic acid, and a propionate, and at least one laminated on the sheet. Metal layer. In still another aspect, the present invention provides a plasma display panel comprising a thin film comprising one or more of a stone, a urethane, and an acrylic acid. 9 1309054

a sheet, and at least one layer of metal formed between the sheet and the bottom plate, wherein the sheet and the bottom sheet are opposed to each other, wherein the sheet has a hardness of Asker C 15-30 and is thick from the surface of the bottom plate opposite the sheet to the sheet The production range is from 0.2-lmm. An advantage of the present invention is that it can reduce residual image time. Further, the present invention uses a sheet of low hardness and light weight. Therefore, it is possible to absorb the vibration and noise of the PDP, make the PDP lighter, and reduce the material of the sheet. [Embodiment] A preferred embodiment of the present invention will be described in more detail with reference to the drawings. - Aspect The present invention provides a plasma display panel comprising a panel unit having a top plate and a bottom plate, a frame supporting the circuit, and a conductive material formed between the panel unit and the frame. The electrically conductive material is a conductive sheet that at least partially has an adhesive strength. An insulating sheet for preventing the electromagnetic wave generated from the panel from affecting the peripheral member or circuit is attached to one side of the conductive material. A sheet having toughness is attached to one side of the conductive material. 10 1309054 The electrically conductive material is a metal coated film that is not formed separately' but is applied to one side of the panel in the form of a film. The metal coated film is formed by a spraying method, a smear method or a mining method. The conductive material is formed by a printing method using a conductive paste.

The conductive material is formed by using one or more of silver (Ag), copper (yttrium and aluminum (A1). The β metamaterial is laminated in a floating state. Ground to peripheral components or circuits.

In another aspect, the invention provides a plasma display panel comprising a thin layer of one or more of a sulphuric acid formic acid foam and acrylic acid and at least one metal layer laminated to the sheet. The sheet is disposed between the panel unit and the frame, the sheet having a laminated metal layer thereon. The mysterious PDP complex includes an adhesive layer for bonding to the metal layer and the panel unit. 11 1309054 The total thickness of the adhesive layer, metal layer and sheet ranges from 0.2 to 1 mm. The total thickness of the adhesive layer, metal layer and sheet The range is from 0.6 mm to 0.95 mm. The carbamic acid ethyl S-containing beads include a plurality of fine pores.

The fine pores are filled by one of Shi Xi and propan acid. The hardness of the adhesive layer, metal layer and sheet is Asker C 15-30. The hardness of the adhesive layer, metal layer and sheet is Asker C 20-30. The metal layer includes one or more of silver (Ag), copper (Cu), and Ilu (A1).

The thickness of the metal layer ranges from 0.01 mm to 0.3 mm. The metal layer includes a plurality of slits. The slit has a width ranging from 0.05 mm to 1 mm. The acrylic acid is viscous. 12 1309054 The sheet comprises a plurality of fine pores entrained in viscous acrylic acid. The PDP of the present invention comprises a sheet having one or more of hydrazine, urethane foam, and acrylic acid.

In still another aspect, the present invention provides a plasma display panel comprising a sheet comprising one or more of a stone, a urethane foam, and an acrylic, and at least one layer formed between the sheet and the substrate opposite to each other. The metal layer, wherein the hardness of the sheet is Asker C 15-30, and the thickness from the surface of the bottom plate opposite to the sheet to the sheet ranges from 0.2 mm to 1 mm. Figure 3 is an exploded perspective view showing the structure of a PDP according to a first embodiment of the present invention;

Referring to Fig. 3, the pdp of the present invention includes a panel unit 110 having a top plate ln and a bottom plate 113, a metal layer 141 laminated on the lower surface of the bottom plate 113 of the panel unit 11A, and a thin plate formed on the lower surface of the metal layer 141. 120, and a frame 13A disposed opposite to the panel unit 11A, and the metal layer 141 and the sheet 120 are located between the panel unit 11A and the panel unit 11A. The metal 'metal layer 141 can be formed on the glass substrate of the substrate 113 by coating a conductive paste on the glass substrate of the substrate 113 or by a sputtering method or the like on the lower surface of the substrate 113. The metal layer 141 is formed on the bottom plate 113 in a clean state. The metal layer 141 has an effect on the load introduced into the bottom plate 113 to improve the waveform stability of the panel unit no 13 1309054. It also improves the charge characteristics to perform stable operations. Similarly, if the metal layer 141 is formed on the panel unit 110 and then electrically floated, the amount of charge generating residual images is reduced, and thus the residual image is reduced. Moreover, the metal layer 141 can be grounded to the ground voltage (GNd) to induce discharge of residual charges. The sheet 12G may be formed using a material having a low heat resistance, elasticity, and a moderate bonding strength with a metal layer, for example, one or more of viscous acrylic acid, hydrazine, and hydroxyacetic acid. The sheet is used as a damper to reduce vibration and noise, and also serves as a heat sink to transfer the heat of the panel unit 11 to the frame 130 through the metal layer 14 turns. Examples of the sheet 12A may include a heat sink sheet having a porous structure including a crucible and a urethane foam, which is proposed in the Korean Patent Application No. 2002-0039179 of the same applicant as the present application. .

The frame 130 may be formed using an aluminum material having high thermal conductivity. The sheet 120 is bonded between the rear surface of the panel unit 11A and the frame 13A. The sheet 120 may include viscous acrylic or an acrylic-based adhesive to rapidly transfer heat generated from the metal layer 141 to the frame 130. Therefore, the sheet can be bonded to the metal layer 141 and the frame 130 under high pressure in a strong and uniform manner. 4 is an exploded perspective view showing the structure of a pDp according to a second embodiment of the present invention; 14 1309054 Referring to FIG. 4, the PDP of the present invention includes a panel unit 110 having a top plate 1U and a bottom plate 113 bonded to a bottom plate of the panel unit 110. The metal strip 147 of the lower surface of 113, the sheet 12A attached to the lower surface of the metal strip 147, and the frame 130 bonded to the panel unit 110 via the sheet 12, wherein the s-frame 13 radiates heat transferred from the sheet. The metal ▼ 147 preferably has an adhesive on at least one side to bond the panel unit 110 and/or the sheet 12, and the adhesive is electrically conductive. «The sinus metal f 147 can be attached to the bottom plate 113 in a floating state or can be grounded to ground voltage (GND). Figure 5 is an exploded perspective view showing the structure of the garment according to the third embodiment of the present invention; > The pDp of the drawing (4) includes a panel single tl 11 具有 having a top plate HI and a bottom plate, laminated on the panel unit A metal foil a 143 on the lower surface of the bottom plate (1), an insulating sheet 145 laminated on the lower surface of the metal foil 143, and a slab of the lower surface of the insulating slab 145 The sheet U0, and the frame 130 of the panel unit 110 via the sheeter, is bonded to the frame unit 110, wherein the frame 13 is filled with heat from the cymbal 120. The metal foil 143 and the continuation, front μ, ^, bar, '彖, the special piece 145 can be used by melting/compressing them into one body. The imaginary—, the metal slab 143 has an effect on the residual charge introduced into the bottom plate 113. The full remote 2 u 曰 metal 143 143 can be attached 15 to the bottom plate 113 in a floating state, or can be grounded to ground voltage (gnd). The insulating rib 145 serves to prevent electromagnetic waves generated from the panel unit 11 from affecting the circuit. 6 is an exploded perspective view showing the structure of a pDp according to a fourth embodiment of the present invention; with reference to FIG. 6, the PDp of the present invention includes a panel having a top plate 1U and a bottom plate 113, and a bottom plate of the panel unit 11 A metal-coated film 149 formed on the lower surface of 113, a sheet 12A adhered to the lower surface of the metal-coated film H9, and a frame 130 bonded to the panel unit 110 via the sheet 12, wherein the frame The heat radiated from the sheet 120 is radiated. The metal-coated film 149 can be placed on the glass substrate of the bottom plate 113 by a spraying method, a printing method, a painting method, and the like. Further, a metal having a high electrical and thermal conductivity such as Ming (A1), copper (Cu) and silver (Ag) may be used to form the metal-coated film 149. The metal coated film 149 can be formed on the bottom plate 113 in a floating state or can be grounded to a ground voltage (gn_d). Figure 7 is a cross-sectional view showing a sheet 1309054 of pDp according to a fifth embodiment of the present invention; referring to Figure 7, the sheet for PDP of the present invention comprises one of hydrazine-containing, urethane acetonate foam and acrylic acid. The base material sheet 200' of the one or more and the metal layer 2〇1 and the adhesive layer 202 which are sequentially laminated on the base material sheet 2〇〇. The sheet for the PDP needs to have an Asker C hardness of 15-30, preferably 20-25' so that it can be used as a damper to absorb vibration and noise, and has a low thermal resistance to make the heat conductivity high. For this purpose, it is possible to form a base material sheet using a material having porosity, low heat resistance and high elasticity (which has viscosity and a plurality of fine pores), such as a porous material composed of a combination of urethane (B) and Shi Xi, or A viscous acrylic material that is foamed into a red porous structure. The metal layer 2〇1 can be formed using a metal having high properties such as ingot (A1), copper (Cu) or silver (Ag). In addition, the sheet for the PDP must be made as thin as possible to make the PDP lightweight and save the cost of materials. , π T work and Wenba Fushou / 蜀 layer 20 卜 adhesive layer 202 and basic material (9) (four) sheet total thickness is = 2 lmm, preferably Q 6 secret ^ 95 coffee. If the total thickness of the sheet is less than or equal to 0.2 mm', the noise and vibration characteristics of the panel can be lowered. In addition, the thickness of the metal layer 2 (1) is required to be 〇.〇lmm_〇3mm, preferably (10) to 0.03. At the same time, taking advantage of the advanced film technology, !7 1309054 is less than or equal to 〇_9mm considering the existing manufacturing technology level, There is no problem in manufacturing a thin moon with a total thickness. If the total thickness of the sheet is reduced, the cost of (4) can be reduced. For example, if the thickness of the sheet is reduced by 0.1 mm, the temperature of the PDP is lowered by 2〇c, and the thickness of the sheet is reduced from 1.2 mm to 〇 ^ two females. Coffee, _ material into

In order to meet the riding conditions, you can select the material of the basic material to cut the surface energy, and ^ can optimize the basic lion's damping effect on the selection, vibration and noise through Chanis . Further, if the basic material thin # 2 is made of a viscous amino phthalic acid material having a neostructure, a plurality of fine pores 201a are entrained therein by foaming' as shown in Fig. 8, a basic material sheet The metal layer 201 and the metal layer 201 can be bonded to each other without requiring an additional binder. In the same manner, if the base material sheet 2 is made of foamed viscous acrylic, the base material sheet 2 and the metal layer 201 can be bonded to each other without requiring an additional binder, as shown in Fig. 7. Conversely, if the base material sheet 200 is composed of Shi Xi, multi-coffin, which combines the foam of daisy and urethane, and foamed acrylic acid (which incorporates urethane foam) When the material is made, another adhesive 2〇3 is formed between the base material sheet 2〇〇 and the metal layer 2〇1 for bonding the base material sheet 2〇〇18 !3〇9〇54 and the metal layer 201 The adhesive layer 2〇2 formed on the metal layer 201 as shown in FIG. 9 can be formed using any known adhesive such as an acrylic-based adhesive, and it is used to bond the metal layer 201. On the glass substrate of the bottom plate of the panel unit of the PDP described in the above embodiment. Moreover, a reieasing paper that can be easily separated from the adhesive layer 202 can be formed on the adhesive layer 202 to prevent contamination. A method of bonding a sheet to a glass substrate of a bottom plate of a panel unit will be described below. When the release paper on the adhesive layer 202 is torn off, the sheet as shown in Fig. 7 is bonded to the glass substrate of the panel unit by a pressurization and/or heating lamination.

In this lamination process, an air layer or air bubbles should not be included between the sheet as shown in Fig. 7 and the face substrate of the bottom plate of the panel unit. For this purpose, as shown in FIGS. 10a and 10b, a plurality of slits 2〇ia are formed in the metal layer 201 for discharging the process in the layered sheet and the panel unit, in the H sheet and the panel The air that exists between the units. The slits 2 can have a linear shape as shown in Fig. 1a, or other shapes such as "+". The width of the slits 201a is preferably 0.05 mm - 1 mm, so that the air can smoothly pass, as shown in the figure 0 19 1309054. Meanwhile, according to the tree (4), the sheet of PDp can only contain the viscosity of the "slip structure". The basic material sheet made of urethane acetal = no 3 metal layer 2 〇 1 and the adhesive layer is moved. In this case, the household 2 now = hardness condition and lightweight 'requires the basic material sheet 200 to be less than the temple In addition, the sheet for PDp according to the present invention can be formed using a combination of sand and shale H(4) without a metal layer addition, or may have a porous shape made of hair (4) 7 or foamed acrylic acid. The base material sheet 200 and the multilayer sheet of the adhesive layer. In this case, the total thickness of the adhesive layer 2〇2 and the base material sheet must be less than or equal to 1 mm, thereby realizing the above hardness and light conditions. The sheet 200 exhibits a hue between white and black such that it absorbs light that is scattered back from the panel unit via the rear glass substrate to reduce the contrast of the quality of the kneading surface, here because of the backscattered light The reduction in the quality of the kneading surface caused by the single-line projection to the panel. For this reason, the base material sheet 200 contains a carbon-based coating added thereto, and thus exhibits a gray hue. As described above, according to the present invention, in the panel A conductive material is formed on the lower surface of the bottom plate. Accordingly, the charge introduced to the substrate is appropriately controlled to improve the waveform stability of the panel. Moreover, the charge characteristics are improved to perform stable operation. Accordingly, the present invention has an advantage in that It is capable of reducing the residual image 20 1309054 image time. In addition, according to the present invention, low hardness and light weight sheets are used, so that vibration and noise of the PDP can be absorbed, light conditions of the PDP can be realized, and the material of the sheet can be reduced. The present invention is not intended to limit the scope of the invention, but the scope of the invention is defined by the scope of the appended claims. The scope and spirit of the invention.

The invention has been described above, but it will be apparent that various modifications can be made. Such modifications are not to be interpreted as a departure from the spirit and scope of the invention, and all obvious modifications are intended to be included within the scope of the appended claims. 1309054 BRIEF DESCRIPTION OF THE DRAWINGS The present invention will be described in detail with reference to the accompanying drawings, in which the same numerals represent the same elements. 1 is an exploded perspective view showing the structure of a conventional PDP; FIG. 2 is a cross-sectional view showing a state of a conventional PDP after coupling; FIG. 3 is a view showing the structure of a PDP according to a first embodiment of the present invention. Decompose perspective

Figure 4 is an exploded perspective view showing the structure of a PDP according to a second embodiment of the present invention; Figure 5 is an exploded perspective view showing the structure of a PDP according to a third embodiment of the present invention; and Figure 6 is a view showing the structure according to the present invention. An exploded perspective view of the structure of the PDP of the fourth embodiment; FIG. 7 is a cross-sectional view showing a sheet of the PDP according to the fifth embodiment of the present invention;

Figure 8 is an exploded perspective view showing the structure of a PDP according to a sixth embodiment of the present invention; Figure 9 is an exploded perspective view showing the structure of a PDP according to a seventh embodiment of the present invention; Figures 10a and 10b are shown in accordance with The present invention is a diagram of an example of a slit formed in a metal layer of a PDP. [Main component symbol description] 10 front substrate 22 1309054 11 sustain electrode 12 dielectric layer 13 protective layer 20 rear substrate 21 barrier strip 22 address electrode

23 R.G.B phosphor layer 110 panel unit 111 top plate 113 bottom plate 120 sheet 130 frame 141 metal layer 143 foil 145 insulating sheet 147 metal strip

149 Metal coated film 200 Basic material sheet 201 Metal layer 201a Multiple fine holes/slits 202 Adhesive layer 203 Adhesive 23

Claims (1)

• 1309054 ^ Lfi〇//^^/ X. Patent Application Scope 1 A plasma display panel comprising: a panel unit having a top plate and a bottom plate; a frame supporting the circuit; and a conductive material An electrically floating state is formed on a lower surface of the bottom plate of the panel unit, and is disposed between the bottom plate of the panel unit and the frame. 2. The electro-destructive display panel as described in the scope of the patent application, wherein the electrically conductive material is a conductive sheet at least partially having an adhesive strength. 3. The utility model as claimed in claim 2, wherein the insulating sheet for preventing the peripheral element or circuit from being attached to the panel is attached to one side of the conductive material. In the plasma display panel described in item 1 of the S'January patent, the secret i-chip is attached to the side of the conductive material. Wherein, the electro-poly display panel according to item 1 of the profit-making track, the conductive material in the dragon is coated, but is coated in the form of a film on the side of the panel, such as Shen 1 In the fifth item of the patent scope, the 铱 铱 ^ ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( 铱 铱 铱 铱 铱 铱 铱 土 土 土 土 土A plasma display panel as described in claim 1, wherein the electrical material is formed by a printing method using a conductive paste. 8. The electromagnet* panel as described in the application of the patent item, wherein the conductive material is formed by one or more of a secret (Ag), a steel (Cu) and a knot (Αι). 9. The electric shaft display panel according to item 1, wherein the conductive material is laminated in a floating state. Ίο. The electro-polymerized display panel of claim 1, wherein the conductive material is grounded to a peripheral component or circuit. u · - "display panel, including the panel space with the discharge space defined between the - and the board, - The frame provided by the panel unit comprises: a watcher in the bite: = eve, urethane acetate concentrate and a plurality of acrylates in the acrylic, the material system is disposed between the single frame of the panel; The π-side substrate and the at least-metal layer's one side of the metal layer are bonded to the underside of the bottom plate of the panel unit under the bottom plate of the panel unit. And the display panel 12. The electric device display 25 1309054 according to claim 11 includes an adhesive layer for bonding the metal layer and the panel unit. 13. The plasma display panel of claim 12, wherein the total thickness of the adhesive layer, the metal layer and the sheet ranges from 0.2 mm to 1 mm. 14. The electropolymer display panel of claim 12, wherein the total thickness of the adhesive layer, the metal layer and the sheet ranges from 0.6 mm to 0.95 mm. 15. The plasma display panel of claim 11, wherein the sheet comprises foamed acrylic acid. 16. The plasma display panel of claim 11, wherein the urethane foam comprises a plurality of fine pores, and the fine pores are filled with one of a stone and a propionate. 17. The plasma display panel of claim 11, wherein the sheet has a hardness of Asker C 15 to 30. 18. The plasma display panel of claim 17, wherein the sheet has a hardness of Asker C 20 to 25. 19. The plasma display panel of claim 11, wherein the metal layer comprises one or more of silver (Ag), copper (Cu), and 26 1309054 of Ming (A1). 20. The plasma display panel of claim 19, wherein the metal layer has a thickness ranging from 0.01 mm to 0.3 mm. 27