JPH10186300A - Method for removing depositions, etc., on substrate surface of liquid crystal panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make possible removing depositions and projections on a substrate surface not only before a frame, etc., is mounted on the substrate but also after that and easily introducing it by being brought its member of a drill loading a grinding member on its tip into contact with the substrate surface, operating the drill and grinding the substrate surface. SOLUTION: When a part A where the deposition or the projection exists on a surface of a glass substrate 3a is confirmed by observation, a grindstone 2 of an electric drill 1 is brought into contact with this part A, and the drill 1 is operated. Thus, the deposition or the projection on this part A is ground by the grindstone 2 to be removed. When the grinding is ended, succeedingly the parts not observed yet among the surface of the substrate 3a are observed successively. Then, whenever the part where the deposition or the projection exists is confirmed, the drill 1 is operated, and it is removed. In such a manner, the whole surface of the substrate 3a is observed, and when all depositions or projections confirmed by the observation are removed, this work is ended.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for removing deposits and projections on a substrate surface of a liquid crystal panel by polishing the substrate surface. In addition, the present invention relates to one that can be easily introduced.

[0002]

2. Description of the Related Art High flatness is required for a substrate of a liquid crystal panel in order to ensure the performance of a liquid crystal display device. Therefore, glass is generally used for the substrate, and the process of manufacturing the liquid crystal panel includes an operation of removing extraneous matter and protrusions present on the surface of the glass substrate.

[0003] Conventionally, in order to remove deposits or protrusions on the surface of a glass substrate which cannot be dissolved by a solvent, it is necessary to carry out a process before mounting a frame, a flexible plate and a polarizing plate on the glass substrate. The work has been performed in which the whole is sandwiched and rotated, and the substrate surface is polished using an abrasive and a water flow.

[0004]

However, even after performing such an operation, there are cases where extraneous matter and projections (particularly minute extraneous matter and projections) remain on the substrate surface. If the user proceeds to the next step and mounts a frame, a flexible board, and a polarizing plate while overlooking such attached matter and protrusions, such work cannot be performed again. That is, in order to rotate the entire substrate and polish its surface, the mounted frame,
All of the flexible and polarizing plates must be removed, but the polarizing plate is removable and can be attached to the substrate, but once the frame or flexible is removed, it cannot be attached again (after mounting, the frame or flexible If the liquid crystal panel is removed and attached, the liquid crystal panel will be defective.)

In order to perform such operations, a relatively large device for rotating the entire substrate and an installation space for the device are required, and construction such as wastewater treatment is required. Therefore, there is also a disadvantage that the scale becomes considerably large.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and it is possible to remove adhering substances and protrusions on a substrate surface not only before mounting a frame or the like on a substrate but also after mounting the frame or the like, and furthermore, a method for easily introducing the same. It is intended to provide.

[0007]

According to the present invention, there is provided a method for removing deposits or the like on the surface of a liquid crystal panel substrate, comprising the steps of contacting the polishing member of a drill having a polishing member mounted at the tip with the substrate surface of the liquid crystal panel. Then, the surface of the substrate is polished by operating the drill.

When the drill is operated while the polishing member at the tip of the drill is in contact with the substrate surface, the substrate surface is polished by the polishing member, so that the deposits and protrusions are removed. The polishing member can be brought into contact with the surface of the substrate as in this method by removing only the polarizing plate that is removably attached to the substrate even after the frame, the flexible plate, and the polarizing plate are mounted on the substrate. . Therefore,
Even after the frame, the flexible board, and the polarizing plate are mounted, it is possible to remove deposits and protrusions on the substrate surface without making the liquid crystal panel defective.

Furthermore, in order to introduce this method, it is only necessary to have an apparatus having a simple and small configuration in which a polishing member is attached to the tip of a drill and a small installation space for the apparatus, and a special installation is required. No construction is required. Therefore, the introduction is very easy.

Further, the method for removing deposits and the like on the substrate surface of a liquid crystal panel according to the present invention is to observe the surface of the substrate of the liquid crystal panel using a microscope to confirm where the deposits or protrusions are present. At this point, the polishing member of a drill having a polishing member attached to the tip is brought into contact with the drill, and the drill is actuated to polish the deposits or protrusions.

[0011] The place where the deposits or protrusions are present on the substrate surface of the liquid crystal panel is confirmed with a microscope, and when the drill is operated with the polishing member at the tip of the drill being in contact with the place, the attachment is obtained. The kimono or the protrusion is removed by being polished by the polishing member. Observing the substrate surface of the liquid crystal panel using a microscope, as well as contacting the polishing member with the substrate surface, even after mounting the frame, flexible and polarizing plates on the substrate, it is detachably attached to the substrate. It is possible by removing only the polarizing plate. Therefore, even after mounting the frame, the flexible board, and the polarizing plate, it is possible to remove the deposits and protrusions on the substrate surface without making the liquid crystal panel defective.

In addition, in addition to a device in which a polishing member is mounted on the tip of a drill, a microscope and a small installation space for the microscope are sufficient, so that the introduction is very easy. In addition, since the deposits and protrusions on the substrate surface are confirmed and removed using a microscope, minute deposits and protrusions can be removed without overlooking.

[0013]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 shows an example of an apparatus used for polishing a surface of a glass substrate of a liquid crystal panel in the present invention. This device comprises an electric drill 1 and a rubber grindstone 2 attached to the tip thereof. As the electric drill 1 itself, an appropriate type may be selected from commonly used ones.

Next, an example of a method for removing deposits and the like according to the present invention will be described with reference to FIG. The surface of the glass substrate 3a of the liquid crystal panel 3 after the substrate bonding and liquid crystal injection have been completed in the manufacturing process is sequentially observed by the microscope 4 one by one. At that time, if the liquid crystal panel 3 has not yet been mounted with the frame, the flexible plate and the polarizing plate, the observation is performed as it is. On the other hand, if the liquid crystal panel 3 has already been mounted with the frame, the flexible plate and the polarizing plate, Observe only after removing the polarizing plate.

When this observation confirms the location A where the deposits or protrusions are present on the surface of the glass substrate 3a, the grinding wheel 2 of the electric drill 1 is brought into contact with the location A and the electric drill 1 is operated. As a result, the deposits or protrusions at the location A are removed by being polished by the grindstone 2.

After the polishing, the glass substrate 3
A part of the surface a that has not yet been observed is sequentially observed. Then, every time the place where the attachment or the protrusion is present is confirmed, the attachment or the protrusion is removed by operating the electric drill 1 as described above.

When the entire surface of the glass substrate 3a is observed in this way and all the deposits or protrusions confirmed by the observation are removed, the operation is completed. When the polarizing plate is removed, the polarizing plate is attached to the glass substrate 3a again.

According to this method, it is possible to remove adhering substances and protrusions on the surface of the glass substrate 3a not only before mounting a frame or the like on the glass substrate 3a of the liquid crystal panel 3 but also after mounting.

In addition, it is only necessary to have a simple and small-sized device such as the electric drill 1 equipped with the grinding stone 2 at the tip and the microscope 4 and a small installation space for the device, so that the introduction is very easy. . In addition, since the attachments and protrusions on the surface of the glass substrate 3a are checked and removed using the microscope 4, minute attachments and protrusions can be removed without overlooking.

In the above embodiment, a rubber whetstone is mounted on the tip of the electric drill. However, a member made of an appropriate material usually used for polishing glass is mounted on the tip of the electric drill 1. You may do so.

In the above embodiment, an electric drill is used. However, a drill driven by power other than electricity (for example, an air drill driven by compressed air, a magnetic drill press using a magnet, a manual Ratchet drill).

The present invention is not limited to the above embodiment,
It goes without saying that various other configurations can be adopted without departing from the gist of the present invention.

[0023]

As described above, according to the present invention, not only before mounting a frame or the like on a liquid crystal panel substrate, but also after mounting, the liquid crystal panel can be attached to the surface of the substrate without being defective. There is an effect that the kimono and the protrusion can be removed to secure the flatness. In addition, an apparatus having a simple and small configuration and a small installation space for the apparatus are sufficient, and special installation is not required, so that introduction of the apparatus is extremely easy.

In addition, when a place where an attached matter or a protrusion is present on the surface of a liquid crystal panel substrate is checked with a microscope, and a polishing member is brought into contact with the place to operate a drill, a conventional method is used. It also has an effect that minute attachments or protrusions that have been difficult to remove can be removed.

[Brief description of the drawings]

FIG. 1 is a front view showing an example of an apparatus used for polishing a surface of a glass substrate.

FIG. 2 is a perspective view showing an example of the method according to the present invention.

[Explanation of symbols]

1 Electric drill, 2 Whetstone, 3 LCD panel, 3
a glass substrate, 4 microscopes

Claims (2)

[Claims] 1. A substrate for a liquid crystal panel in which the surface of the substrate is polished by bringing the member of a drill having a polishing member attached to the tip thereof into contact with the surface of the substrate of the liquid crystal panel and operating the drill. A method for removing deposits on the surface. 2. Observing a substrate surface of a liquid crystal panel using a microscope to confirm a place where an adhering substance or a protrusion is present, and said member of a drill having a polishing member attached to a tip at the place. And removing the deposits on the surface of the substrate of the liquid crystal panel by polishing the deposits or protrusions by operating the drill.