JP4412229B2 - Method for manufacturing plasma display panel - Google Patents

Description

The present invention relates to a method of manufacturing a plasma display panel, a method of manufacturing a plasma display panel and the front glass substrate and rear glass substrate especially of the same size.

  As a display device that can display high-definition television images on a large screen because it can display at high speed compared to a liquid crystal panel and is easy to increase in size, it emits light by exciting phosphors with ultraviolet light from rare gas discharge. Accordingly, there is an increasing expectation for a display device such as a color television receiver using a plasma display panel (hereinafter referred to as “PDP”) that displays an image. PDPs are attracting attention as large-screen display devices for high-definition television, and for this purpose, developments are being actively made to improve display quality, such as higher definition and higher brightness, higher reliability, and lower costs.

  The PDP is configured by sealing the peripheral portions of the front plate and the back plate arranged opposite to each other with a sealing member, and a discharge gas is enclosed in a discharge space formed between the front plate and the back plate. ing. On the front plate, a plurality of display electrode pairs composed of scan electrodes and sustain electrodes covered with a dielectric layer are formed, and a protective layer is formed on the dielectric layer. Each of the pair of display electrode pairs includes a transparent electrode and an auxiliary electrode made of a metal material formed on the transparent electrode.

  In addition, a plurality of data electrodes are formed on the back plate in a direction orthogonal to the display electrode pair, a dielectric layer is formed so as to cover the data electrodes, and the data electrode is parallel to the data electrodes on the dielectric layer. A partition is formed at a position between the data electrodes. Further, a phosphor layer is formed between adjacent barrier ribs.

  FIG. 4 is a perspective view showing a structure of a conventional PDP in which a front plate and a rear plate are bonded and sealed. As shown in FIG. 4, a front plate 53 in which at least a scanning electrode 51 and a sustain electrode 52 are formed on a front glass substrate 50, and a back plate 62 in which at least a data electrode 61 is formed on a rear glass substrate 60, are respectively electrodes. Are arranged so that the surfaces on which they are formed face each other, and the periphery thereof is sealed with frit glass and sealed, and inside is filled with xenon (Xe) -neon (Ne) gas as a discharge gas. Yes.

The front terminal plate 53 protrudes from the rear plate 62 when the front plate 53 and the rear plate 62 are arranged so that the extraction terminal portion 54 of the scanning electrode 51 and the extraction terminal portion 55 of the sustain electrode 52 are formed on the front plate 53. Are provided at both ends. On the other hand, the extraction terminal portion 63 of the data electrode 61 formed on the back plate 62 is provided at one end of the back plate 62 protruding from the front plate 53. Accordingly, the front plate 53 and the back plate 62 are formed to be several millimeters to several tens of millimeters larger than the other substrate in order to form the extraction terminal portions 54, 55, and 63 (see, for example, Patent Document 1). ).
JP 2004-86134 A

  However, in the conventional PDP described above, the dimensions of the front plate and the back plate are different due to the size of the display screen. For this reason, it is difficult to share the glass substrates of the front plate and the back plate, and there is a problem that productivity is lowered and manufacturing costs and member costs are increased.

  In addition, when manufacturing a PDP having such a structure by using a multi-surface method of glass substrate, since the dimensions of the front plate and the back plate are different, when bonding the front plate and the back plate, It is necessary to cleave before the bonding process. For this reason, there have been problems such as generation of dust and foreign matters in the cleaving process of the multi-sided substrate, causing a PDP defect, and reduction of the production efficiency of the multi-sided construction method.

  The present invention has been made to solve these problems, and it is an object of the present invention to provide a PDP having a structure that can be easily multi-faced at low cost by sharing a front plate and a back plate.

In order to achieve the above object, the present invention uses a front substrate glass on which four front plates are formed and a rear substrate glass on which four back plates are formed, and includes four sides of the front substrate glass. Two adjacent sides are positioned outside the rear substrate glass, and the front plate for four sheets of the front substrate glass and the rear plate for four sheets of the rear substrate glass are arranged to face each other. The plasma display panel is formed by sealing and joining the front plate and the back plate for each sheet with a seal portion, and then the front substrate glass and the rear substrate glass are divided into individual plasma display panels.

  According to such a configuration, the glass substrate of the front plate and the back plate can be used as a common glass substrate, and a desired display area can be obtained by arbitrarily adjusting the bonding position, and productivity can be increased. It is possible to realize a PDP that can be improved and reduced in cost.

  Further, a scanning electrode takeout terminal portion is provided on one of the two sides outside one glass substrate, and a sustain electrode takeout terminal portion is provided on the other side, and 2 located outside the other glass substrate. It is desirable to provide a data electrode extraction terminal portion on one of the sides. According to such a configuration, it is possible to easily form an extraction terminal portion of each electrode on a pair of bonded glass substrates, and it is possible to realize a PDP capable of improving productivity and reducing cost.

  According to the present invention, it is possible to share a glass substrate for the front plate and the back plate, and it is possible to realize a PDP that is optimal for multi-planar construction as a production.

  Hereinafter, a PDP according to an embodiment of the present invention will be described with reference to the drawings.

(Embodiment)
FIG. 1 is a perspective view showing a structure of a PDP according to an embodiment of the present invention, and FIG. 2 is a perspective view showing an appearance of the PDP.

  As shown in FIG. 1, the PDP is composed of a front plate 7 and a back plate 13. The front plate 7 includes a display electrode pair 2 formed in a stripe shape on one surface of the front glass substrate 1, a dielectric film 3 covering the display electrode pair 2, and a protective film 4 provided on the dielectric film 3. ing. The back plate 13 includes a data electrode 9 formed in a stripe shape on one side of the back glass substrate 8, a base dielectric film 10 covering the data electrode 9, and a stripe that partitions a discharge space provided on the base dielectric film 10. And a phosphor film 12 applied to a groove between the barrier ribs 11. The front plate 7 and the back plate 13 are arranged so that the display electrode pair 2 and the data electrode 9 face each other, and a discharge gas (Ne—Xe gas or He—Xe gas) is formed in a discharge space formed by the barrier ribs 11. ) Is filled. The display electrode pair 2 and the data electrode 9 intersect with each other to form a discharge cell. That is, the discharge cells are arranged in a matrix, and the discharge cells having the red, green, and blue phosphor films 12 become pixels for color display. The PDP generates a discharge by applying a pulse voltage between the display electrode pair 2 during the sustain discharge period, and excites the phosphor of the phosphor film 12 with ultraviolet rays generated by the discharge to convert it into visible light. Light or light passes through the protective film 4 and the dielectric film 3 to display an image or video.

  FIG. 2 is a perspective view of the appearance of a state in which the front plate 7 and the back plate 13 are bonded to form a PDP. As shown in FIG. 2, the front glass substrate 1 and the rear glass substrate 8 have a rectangular shape with the same dimensions, and side A and side B, which are two adjacent sides of the four sides of the rear glass substrate 8. Are arranged on the outside of the front glass substrate 1 so that the surfaces on which the respective electrodes are formed face each other. That is, either the front plate 7 or the back plate 13 is arranged to be translated along a diagonal line of a rectangle. Further, a seal portion (not shown) is formed at a peripheral portion of a region where the front glass substrate 1 and the rear glass substrate 8 overlap each other, and a discharge space is formed inside and sealed and joined.

  Further, as shown in FIG. 2, an extraction terminal portion 20 for the data electrode 9 is provided in an end region C facing the side A of the back plate 13 located outside the front plate 7, and is located outside the back plate 13. In the end region E facing the side D of the front plate 7, a takeout terminal portion 21 corresponding to each of the scanning electrodes constituting the display electrode pair 2 is provided. Furthermore, an extraction terminal portion 22 in which a plurality of sustain electrodes constituting the display electrode pair 2 are short-circuited is provided in an end region G that is located outside the back plate 13 and faces the side F of the front plate 7. That is, as shown in FIG. 2, the extraction terminal portions 20, 21, 22 from the respective electrodes can be easily formed on the end portions facing the outside of the front plate 7 and the back plate 13.

Next, an embodiment of the manufacturing method of the present invention will be described. FIG. 3 is a plan view of a state in which the substrate glass is bonded when the PDP according to the embodiment of the present invention is manufactured by the multi-face machining method. As shown in FIG. 3, in the present embodiment, a multi-chamfer configuration in which four front plates 7 and 13 are obtained from one front substrate glass 30 and one rear substrate glass 31, respectively. It is said. Since the front glass substrate 1 and the rear glass substrate 8 have the same rectangular shape, one front substrate glass 30 and one rear substrate glass 31 have the same dimensions.

In FIG. 3, components such as electrodes of the front plate 7 and the back plate 13 for four sheets are formed on a single front substrate glass 30 and a rear substrate glass 31 respectively, and the four sides of the front substrate glass 30 are formed . Two adjacent sides are located outside the rear substrate glass 31, and the front plate 7 for four sheets of the front substrate glass 30 and the rear plate 13 for four sheets of the rear substrate glass 31 face each other. The PDP is formed by sealing and joining the front plate 7 and the back plate 13 for each sheet by a seal portion . Therefore, the front plate 7 and the back plate 13 for each sheet are sealed and joined by the seal portion in a predetermined region.

  FIG. 3A is a plan view seen from the front substrate glass 30 side, and FIG. 3B is a plan view seen from the rear substrate glass 31 side. As shown in FIGS. 3A and 3B, the front substrate glass 30 and the rear substrate glass 31 are arranged such that the side H and the side I of the rear substrate glass 31 are located outside the front substrate glass 30. They are offset and placed opposite each other.

Therefore, after four PDPs are formed , the cutting lines 33 and 34 are put in the front substrate glass 30 and the cutting lines 35 and 36 are put in the back substrate glass 31 to divide each PDP. It is possible to simultaneously manufacture the PDP.

  As described above, according to the embodiment of the present invention, the substrate glass is cleaved after the completion of the sealing as the PDP, so that no dust or foreign matter is brought into the discharge space or the structure of the PDP, resulting in poor lighting. Can be reduced. In addition, the transport process can be simplified, and productivity can be improved and costs can be reduced.

Thus , according to the present invention, the glass substrate of the front plate and the back plate can be used as a common glass substrate, and a desired display area can be obtained by arbitrarily adjusting the bonding position, Productivity can be improved and a PDP capable of reducing costs can be realized.

  According to the present invention, it is possible to reduce the production cost by sharing the glass substrate of the front plate and the back plate, thereby facilitating multi-sided chamfering and suppressing defects, and for a large-sized image display device or the like. Useful.

The perspective view which shows the structure of PDP in embodiment of this invention A perspective view showing the appearance of the PDP A plan view of a state in which the substrate glass is pasted together when the PDP is manufactured by the multi-face machining method. The perspective view which shows the external appearance of the conventional PDP

DESCRIPTION OF SYMBOLS 1 Front glass substrate 2 Display electrode pair 3 Dielectric film 4 Protective film 7 Front plate 8 Rear glass substrate 9 Data electrode 10 Base dielectric film 11 Partition 12 Phosphor film 13 Back plate 20, 21, 22 Extraction terminal part 30 Front substrate Glass 31 Rear substrate glass 33, 34, 35, 36 Break line

Claims (1)

Using a front substrate glass on which four front plates are formed and a rear substrate glass on which four back plates are formed, two adjacent sides of the four sides of the front substrate glass are outside the rear substrate glass. And the front plate for four sheets of the front substrate glass and the rear plate for four sheets of the rear substrate glass are arranged to face each other, and the front plate and the back plate for each sheet are sealed. A plasma display panel manufacturing method comprising: forming a plasma display panel by sealing and bonding, and then dividing the front substrate glass and the rear substrate glass into individual plasma display panels.

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