JP3022258B2 - Glass substrate for liquid crystal display device and method for manufacturing liquid crystal display device using the glass substrate - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a glass substrate for a liquid crystal display (hereinafter, simply referred to as a glass substrate) and a method for manufacturing a liquid crystal display using the glass substrate. More specifically, the present invention relates to a glass substrate capable of efficiently improving a large and thin liquid crystal display device and improving productivity, and a method for manufacturing a liquid crystal display device using the glass substrate.

[0002]

2. Description of the Related Art Conventionally, liquid crystal display devices have been used as screen displays for TV receivers, OA equipment, and the like. The glass substrate used to manufacture this liquid crystal display device is shown in FIG.
In the manufacturing process, as shown in FIGS.
Those having dimensions of width x thickness of 300 x 400 x 1.1 (mm) or 370 x 470 x 1.1 (mm) are used,
From each of the glass substrates 51 and 52, two or four areas S for forming a liquid crystal display necessary for manufacturing a liquid crystal display device are formed. By the way,
It is considered that the cost and weight of liquid crystal display devices are becoming more and more rapid, and as a countermeasure against such a situation, a glass substrate for increasing the size and weight of a glass substrate for multiple products is required. The thickness of the glass substrate (length x width x thickness) is 550 x 650 x 0.7
(Mm), 550 x 650 x 0.5 (mm) or larger dimensions and larger dimensions can be considered.

[0003]

However, as the glass substrate is made larger and thinner, the weight of the glass substrate is reduced, and the glass substrate is more likely to be warped. Therefore, the following problems are conceivable.

That is, when the weight of the glass substrate is reduced,
In the transfer method in the processing apparatus, for example, as shown in FIG. 5, in the transfer method using the transfer roller 53 driven by a motor or the like, there is a problem that the transfer roller 53 idles and it is difficult to transfer the substrate 52 smoothly.

When the glass substrate is warped, the following problem occurs.

Since it becomes difficult to hold the glass substrate,
It is very difficult to handle and transport the inside of the apparatus when holding the outer periphery of the glass substrate in the lithography process.

At the time of transportation in a wet treatment process,
The periphery of the glass substrate cannot be gripped.

[0008] When handling glass substrates one by one from inside the cassette, vacuum suction is not possible.

The glass substrate cannot be detected when the glass substrate is transported horizontally in the apparatus.

A washing step, a developing step, an etching step,
During processing such as a peeling step, uniform processing in the glass substrate cannot be performed.

SUMMARY OF THE INVENTION In view of the above circumstances, the present invention provides a glass substrate which facilitates gripping of a glass substrate, facilitates handling and transport in an apparatus, and enables uniform processing in the surface of the glass substrate. It is an object to provide a method for manufacturing a liquid crystal display device using the glass substrate.

[0012]

Means for Solving the Problems The glass substrate of the present invention comprises:
A glass substrate used for manufacturing a liquid crystal display device , wherein an engaging portion formed of a pair of notches opposed to each other at a peripheral portion outside a region for forming a liquid crystal display is the glass substrate.
When the board is held and suspended by the engaging portions,
It is characterized in that the lath substrate is formed at a position where lateral vibration does not occur .

The method of manufacturing a liquid crystal display device according to the present invention is a method of manufacturing a liquid crystal display device, wherein a peripheral portion of a glass substrate used for manufacturing the liquid crystal display device is formed outside a region for forming a liquid crystal display. From a pair of notches facing each other
An engaging portion made by forming, gripped by inserting the pair of gripping means to said pair of engaging portions, while suspended, is characterized by conveying and / or process operation.

[0014]

According to the glass substrate of the present invention, it is possible to insert a pair of grips into a pair of engaging portions formed in the peripheral portion, for example, a triangular notch, and to hold and suspend the device. The glass substrate does not warp during transportation or processing. In addition, by manufacturing using the glass substrate, a high-quality liquid crystal display device can be obtained.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A glass substrate according to the present invention and a method for manufacturing a liquid crystal display device using the glass substrate will be described below with reference to the accompanying drawings.

FIG. 1 is a perspective view showing an embodiment of the glass substrate of the present invention, and FIG. 2 is a front view showing a state of holding the glass substrate in FIG.

The glass substrate of the present invention is a glass substrate in a manufacturing process used for manufacturing a liquid crystal display device,
As an example of the size, the dimension of length x width x thickness is 550
× 650 × 0.7 (mm) or 550 × 650 × 0.
5 (mm), but is not limited thereto. As shown in FIG. 1, a region (element region) S for forming a liquid crystal display is divided into nine surfaces on the glass substrate 1. The number of sections is appropriately selected in consideration of the size of the region S and the size of the glass substrate.

The present invention is characterized in that a pair of engaging portions 3 facing each other is formed on the peripheral portion 2 outside the region S on the glass substrate.

The pair of engaging portions 3 are provided on the opposing sides 2a and 2b and the opposing sides 2c and 2d of the peripheral portion 2, respectively. In the present invention, the engaging portions 3 may be provided on at least one opposing side. . The position where the engaging portion 3 is formed is not particularly limited. For example, the position where the engaging portion 3 is formed on the glass substrate (550 × 650 × 0.7 mm) shown in FIG. It is preferable that the thickness be about 10 to 15 mm so that the glass substrate does not run out when the glass substrate is gripped. In addition, as the engaging portion in the present invention, in addition to a triangular cutout as shown in FIG. etc. notch on the curved shapes can be used.

As shown in FIG. 2, the glass substrate 1 of the present invention is suspended by inserting a pair of grips 4 serving as a pair of gripping means into the pair of engaging portions 3 and gripping them. Then, for example, the substrate is sequentially transported in an apparatus for performing a cleaning step or the like, and a process is performed. in this way,
Since the glass substrate 1 is transported and processed while being suspended by a weak gripping force, the glass substrate 1 is not warped when being transported or handled in a horizontal state. Therefore, a high quality liquid crystal display device can be obtained.

[0021]

As described above, in the glass substrate of the present invention and the method of manufacturing a liquid crystal display device using the glass substrate, a pair of engaging portions formed in the peripheral portion are gripped and suspended. Therefore, the holding force of the glass substrate can be minimized. As a result, the glass substrate does not warp when being transferred or processed in the apparatus, and the transfer is easy and uniform processing can be performed, so that the liquid crystal display device can be efficiently manufactured and the productivity can be improved. Can be. Further, since the peripheral portion of the glass substrate is gripped, the region for forming the liquid crystal display is not contaminated. Further, since the glass substrate is transported vertically and processed, the processing apparatus can be reduced in size and equipment cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of a glass substrate of the present invention.

FIG. 2 is a front view showing a holding state when the glass substrate in FIG. 1 is transferred in the apparatus or processed.

FIG. 3 is a perspective view showing an example of a conventional glass substrate.

FIG. 4 is a perspective view showing another example of a conventional glass substrate.

FIG. 5 is a perspective view showing a conventional glass substrate transfer in the apparatus.

[Explanation of symbols]

 Reference Signs List 1 glass substrate 2 peripheral part 3 engaging part 4 grip for grip S area

Claims (2)

(57) [Claims] 1. A glass substrate used for manufacturing a liquid crystal display device , wherein an engaging portion comprising a pair of cutouts facing each other around a peripheral portion outside a region for forming a liquid crystal display is provided on the glass substrate. Is suspended by gripping the
A glass substrate for a liquid crystal display device , wherein the glass substrate is formed at a position where the glass substrate does not oscillate when the glass substrate is moved . 2. A method for producing a liquid crystal display device, comprising: a glass substrate used for producing the liquid crystal display device;
An engaging portion comprising a pair of notches opposed to each other is formed in a peripheral portion outside a region for forming a liquid crystal display, and a pair of gripping means is inserted into the pair of engaging portions, gripped, suspended, and transported. And / or a process for producing a liquid crystal display device characterized by performing a process.