JP2014069248A - Glass substrate end face treatment method and device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a glass substrate end face treatment method or the like which makes it possible to reliably remove unnecessary matter generated by chamfering.SOLUTION: After an end face 2a of a glass substrate 2 is chamfered, the end part surface of the chamfered glass substrate 2 is brought into contact with a polishing body 22, and unnecessary matter 31 adhering to the end part surface of the glass substrate 2 is removed.

Description

  The present invention relates to a glass substrate end surface processing method and apparatus for processing an end surface of a glass substrate.

  2. Description of the Related Art Conventionally, a glass substrate mirror polishing method for polishing an end surface of a glass substrate to a mirror surface is known (see Patent Document 1).

  In the mirror polishing method disclosed in Patent Document 1, a polishing tool is pressed against an end surface of a glass substrate, and the polishing tool is rotated by a drive motor to mirror the end surface of the glass substrate while moving the glass substrate straight.

  On the other hand, color liquid crystal panels are widely used as glass substrates used for production of displays such as touch panels, liquid crystal displays, and electroluminescence displays. This color liquid crystal panel is, for example, a color filter having a laminated film in which two glass plates face each other at an interval of a cloth bag, and one surface of each pixel layer has three primary color pixel layers and a black matrix or the like is formed at the boundary portion. It is a substrate.

JP 2000-176804 A

  In chamfering of the end face of a color filter substrate having a laminated film, part of the laminated film is peeled off, chipping or cracking occurs, and unnecessary materials such as glass pieces and peeled pieces of the laminated film remain on the end face of the substrate. May cause problems such as lowering the yield.

  Accordingly, the present invention has been made in view of the above problems, and an example of the object thereof is to provide a glass substrate end surface processing method and apparatus capable of reliably removing unnecessary materials generated by chamfering processing. It is.

  In order to solve the above problems, an end surface processing apparatus (10) for a glass substrate (2) according to claim 1 comprises a chamfering device (15) for chamfering the end surface of the glass substrate. In the present invention, after the end face of the glass substrate is chamfered, an unnecessary object removing device (20) is provided for removing the unnecessary substance (31) adhering to the end surface of the glass substrate by the chamfering process. .

  Further, the end surface processing apparatus (10) for the glass substrate (2) according to claim 2 is the end surface processing apparatus for the glass substrate according to claim 1, wherein the unnecessary material removing apparatus has a polishing member ( 22b) and a drive unit (M) for rotating the rotary body, and the polishing member is brought into contact with the end surface of the glass substrate.

  Further, in the glass substrate end surface processing method according to claim 3, after the end surface of the glass substrate is chamfered, the polishing body is brought into contact with the end surface of the chamfered glass substrate, and the end portion of the glass substrate is contacted. It is characterized by removing unnecessary substances adhering to the surface.

  According to the method for treating the end face of a glass substrate and the like in the present invention, an unnecessary object generated in the chamfering process can be surely removed, so that a decrease in yield due to the generation of the unnecessary object can be prevented.

FIG. 1A is a schematic diagram viewed from the plane, FIG. 1B is a schematic diagram viewed from the front, and FIG. 1C is a schematic diagram viewed from the left side. It is a schematic diagram for demonstrating operation | movement of a chamfering apparatus. It is a schematic diagram for demonstrating operation | movement of an unnecessary object removal apparatus.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  The glass substrate 2 suitably used in the glass substrate end face processing method of the present embodiment is a color filter used for production of a display such as a liquid crystal display or an electroluminescence display. Such a color filter has a laminated film 3 in which a black matrix and pixel layers of red, green, and blue colors are formed on a glass substrate.

  In the chamfering process of the color filter, an unnecessary object 31 such as a minute glass piece or a peeled piece of the laminated film generated when a part of the laminated film 3 is peeled off or a crack is generated is an end face of the color filter. Adhere to. If such an unnecessary object 31 adheres to the end face, a problem occurs in the liquid crystal assembling process and the like, which causes a decrease in yield.

  In the present invention, the above-described yield is prevented in advance, and the glass substrate end surface processing method in the present embodiment is specifically described in FIG. 1 to FIG. Immediately after the end surface of the glass substrate 2 is chamfered by using the end surface processing apparatus 10, the unnecessary material 31 remaining on the end surface of the glass substrate 2 is removed by the chamfering processing. In addition, since the method of chamfering the end surface of this glass substrate 2 is conventionally well-known, detailed description shall be abbreviate | omitted.

  As shown in FIG. 1, the glass substrate end surface processing apparatus 10 is placed on both sides of a base 12 on which a glass substrate 2 is placed and which can be moved in a horizontal direction by a driving unit M. A chamfering device 15 for chamfering both side end surfaces (hereinafter referred to as “end surface 2a”) of the glass substrate 2 and a downstream side of the chamfering device 15 are disposed, and the end surface 2a of the glass substrate 2 is chamfered. Immediately after that, it is rubbed with the end surface of the glass substrate 2 to polish the end surface of the glass substrate 2 and remove an unnecessary material remaining on the end surface.

  The chamfering device 15 is disposed on both sides of the glass substrate 2 and is connected to a driving unit M such as a motor, and a grindstone body 17 having a circular shape in plan view attached to the periphery of the tip of the shaft body 16. The grindstone body 17 is rotated by the rotational drive of the drive unit M, and the end surface 2a of the glass substrate 2 is chamfered by contacting the corner portion of the end surface 2a of the glass substrate 2 to which the grindstone body 17 moves. The

  As shown in FIG. 2, the grindstone body 17 has a recess 18 formed with an outer peripheral end surface recessed inward, and the shape of the recess 18 is a tapered surface so that the upper and lower sides expand in the outer peripheral direction. 18a, and the cross section is formed in a substantially horizontal V shape. The tapered surface 18a comes into contact with the upper and lower corners 2b of the end surface 2a of the glass substrate 2, so that the end surface 2a of the glass substrate 2 is chamfered.

  The unnecessary object removing device 20 includes a shaft body 21 connected to a driving unit M such as a motor, and a cylindrical polishing body 22 attached around the tip of the shaft body 21, as shown in FIG. 3. By rotating the drive unit M, the polishing body 22 rotates and the end of the glass substrate 2 is polished by contacting the end surface of the glass substrate 2 to which the polishing body 22 moves. Unnecessary material 31 remaining on the surface is adsorbed on the surface of the polishing body 22 or dropped to the outside, and the unnecessary material 31 is removed from the end surface of the glass substrate 2.

  As an example of the polishing body 22, a polishing member 22b is attached to the surface of a cylindrical body 22a (rotary body of the present application). For example, a plurality of brushes or polishing on the surface of the cylindrical body Wrapped around cloth paper, rubbing cloth, etc.

  The glass substrate end surface processing apparatus 10 configured as described above moves the glass substrate 2 to the chamfering device 15 and the unnecessary material removing device 20 side by a driving unit (not shown), and drives the corners of the end surface 2a of the glass substrate 2. While making it contact with the grindstone body 17 rotated by the part M, the grinding | polishing body 22 rotated by the drive part M is made to contact the edge part surface of the glass substrate 2 immediately after that.

  As a result, the unnecessary material 31 remaining (attached) on the end surface of the glass substrate 2 after the end surface 2a of the glass substrate 2 is chamfered by cutting with the grindstone body 17 is removed by the polishing body 22. It is possible to prevent the yield from being reduced due to the unnecessary material 31 remaining on the glass substrate 2.

  As described above, according to the glass substrate end surface processing method of the present embodiment, the unnecessary object removing device 20 is additionally installed immediately after the existing chamfering device 15, so that a simple capital investment is required. In addition, it is possible to easily remove the unnecessary material 31 generated by the chamfering process of the glass substrate 2 using the color filter, and to easily and inexpensively reduce the yield due to the unnecessary material 31 remaining on the glass substrate 2. It can be prevented in advance.

  In addition, this invention is not limited to the said embodiment, A various change is possible within the range of the summary of this invention. For example, the grindstone body 17 and the polishing body 22 shown in the present embodiment may have any form as long as they fulfill their original roles (cutting and polishing), and conventionally known techniques can be applied.

2 Glass substrate 10 End surface processing device 15 for glass substrate Chamfering device 20 Unnecessary material removing device 31 Unnecessary material

Claims (3)

In the glass substrate end surface processing apparatus equipped with a chamfering device for chamfering the end surface of the glass substrate,
An end surface processing apparatus for a glass substrate, comprising: an unnecessary material removing device that removes unnecessary materials adhering to the end surface of the glass substrate by the chamfering process after chamfering the end surface of the glass substrate. The unnecessary object removing device is
A rotating body having a polishing member around, and a drive unit that rotationally drives the rotating body,
The glass substrate end surface processing apparatus according to claim 1, wherein the polishing member is brought into contact with an end surface of the glass substrate.   After chamfering the end surface of the glass substrate, a polishing body is brought into contact with the end surface of the chamfered glass substrate to remove unnecessary substances adhering to the end surface of the glass substrate. End face processing method.

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