KR100439260B1 - Method for forming barrier ribs of plasma display panel by using shaping roller having shaping grooves and ultrasonic lines - Google Patents

Abstract

PURPOSE: A method is provided to shorten manufacturing time and achieve improved accuracy of manufacture without the need of performing an alignment process including a printing process. CONSTITUTION: A method comprises a step of depositing a barrier rib material on a lower glass(31); a step of forming barrier ribs(35) by rolling a shaping roller(33) having shaping grooves(34) and ultrasonic lines(36) over the barrier rib material at the state where the barrier rib material exists between gel and crystal states; and a step of baking the resultant structure. The ultrasonic lines of the shaping roller remove barrier ribs from the shaping grooves during formation of barrier ribs.

Description

How to Form Bulkhead of Plasma Display Panel

The present invention relates to a method for forming a partition wall of a plasma display panel used as a flat panel display device, and in particular, when a forming roller having a fine partition forming groove in a metal cylinder is rotated and transferred on a partition material coated on a lower plate glass, the forming roller is formed on the forming roller. When the partition wall having a certain width and height is automatically formed by the formed groove, and the chip is formed in the forming groove, the ultrasonic wave is applied to the molding groove to remove the chip by the constant vibration to form the partition wall. Formation of bulkheads in a single rotation process of forming rollers simplifies the process, shortens manufacturing time, and eliminates the need for alignment, such as printing, to form accurate and clean bulkheads. It is about a method.

In general, various flat panel devices have emerged as new display devices in recent years.

This is because the flat panel device is light and thin, so that the overall area of the flat panel is small, and is currently mainly used for mounting of portable devices, vehicles, and devices.

Recently, many research activities have been conducted for home use, and among them, plasma display panels are emerging as flat panel devices.

The plasma display panel used for the above purpose is an electrical or optical crosstalk between two insulating substrates comprising a front plate on which an anode electrode is formed and a back plate on which a cathode electrode is formed. A partition is formed and comprised.

As shown in FIG. 2, when the voltage is applied to the upper electrode 11 and the lower electrode 9, the plasma display panel discharges in the discharge region 14 on the surface of the dielectric layer 12 and the protective layer 13, thereby preventing ultraviolet rays ( 15) occurs.

That is, Xenon, neon gas, etc. are mainly composed of inert adsorption gas, that is, helium, which is filled with pressure of about 400 to 500 torr in the discharge cell while accelerating to the cathode (-) by the driving voltage applied to the inside of the discharge cell. When the inert gas is excited and collides with the added penning gas, ultraviolet rays 15 of 147 nm are generated.

The ultraviolet light 15 collides with the phosphor 16 surrounding the lower electrode 9 and the partition wall 2 to emit light in the visible light region.

That is, the fluorescent substance 16 is excited by the generated ultraviolet rays 15.

Referring to the conventional method of forming a partition wall of a plasma display panel having the above function, as shown in FIG. 1, a screen mask 23 having a molding groove 21 is disposed on an upper portion of the lower plate glass 20 of the plasma display panel, and the partition wall material is formed. The partition wall 2 is formed by pushing the 22 to the squeeze 24.

Therefore, in the conventional method as described above, the screen mask 23 is repeatedly applied to the lower plate glass 20 to form the partition wall 2 so as to form the partition wall 2 by the printing method. It takes a lot, and a certain height can be obtained through the printing process of about 10 times, but the alignment is not correct every time printing, there is a problem that the exact printing is difficult and accordingly can not form a smooth partition wall.

The present invention is to compensate for the conventional problems as described above by rotating the forming roller having a fine partition wall forming groove in the metal cylinder on the partition wall material is applied on the bottom plate glass by a forming groove formed in the forming roller and a constant width and When the partition wall having a height is automatically formed and the chip is formed in the forming groove at this time, the ultrasonic wave is applied by ultrasonic waves to remove the chip by a constant vibration, thereby forming the partition wall and forming the partition wall by only one molding roller rotation process. By simplifying the process, the process can be simplified, the manufacturing time can be shortened, and alignment, such as a printing method, is not necessary, so that accurate and clean partitions can be formed.

1 is a schematic view showing a conventional partition formation method.

2 is a cross-sectional view of the plasma display panel.

Figure 3 is an overall configuration diagram showing a method of forming a partition wall of the present invention.

Figure 4 is a side view showing an embodiment of the present invention.

Figure 5 is a finished product produced by the present invention.

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

1: bottom plate 32: material for bulkhead

33: forming roller 34: forming groove

35: bulkhead 36: ultrasonic wave

3 and 4, when the partition material 32 is applied onto the bottom plate 31 as shown in FIG. 3 and FIG. Rolling on the lower plate grass 31 is to form a partition wall 35 having a predetermined width, pitch and height under the influence of the forming groove 34 formed in the forming roller 33.

At this time, in order to prevent the chip to be formed in the forming groove 34 of the forming roller 33, the ultrasonic wave 36 is applied to the ultrasonic wave 36 to remove the chip by a certain impulse, as shown in FIG. Will complete the formation.

Therefore, the present invention as described above is formed by forming a forming groove 34 in the metal cylindrical forming roller 33 to roll the forming roller 33 on the partition material 32 is applied on the bottom plate grass 31 The partition wall 35 is formed by the forming groove 34 formed in the forming roller 33, and at this time, the partition wall of the panel is completed while removing the chip sandwiched in the forming groove 34 by the vibration of the ultrasonic wire 36. As a result, the number of work steps can be reduced, thereby improving workability and productivity, and alignment is not required for mass production, thereby simplifying the process and forming accurate and clean bulkheads.

As described above, the present invention is a partition having a constant width and height by rotating the forming roller having a fine partition wall forming groove of the circular shape on the partition wall coated on the bottom plate grass by the forming groove formed on the forming roller. This is automatically formed and the chip is formed in the forming groove at this time by applying an ultrasonic wave using ultrasonic waves to remove the chip by a constant vibration to form a partition wall by forming the partition wall in only one molding roller rotation process It can simplify the process, shorten the manufacturing time, eliminate the need for alignment, such as printing method, can be fixed and form a clean partition, and the effect of improving the quality and reliability of the product.

Claims (2)

A partitioning roller is rolled on the partition material applied to the upper portion of the lower plate glass and the partition material to form partition walls, Forming a partition wall by forming a partition wall forming groove to maintain parallelism so as to form a partition wall around the forming roller, The forming roller is a partition wall forming method of the plasma display panel, characterized in that to form a clean partition wall by installing an ultrasonic ray so as to remove the partition wall material inserted in the forming groove when forming the partition wall therein. Applying a barrier material on an insulating substrate; Rolling the partition material with a forming roller in which ultrasonic waves are installed in a state between gel and crystal to form a forming groove to form a partition wall; A partition wall forming method of a plasma display panel, characterized by comprising the step of firing the molded partition material.