JPH01149030A - Production of lcd cell - Google Patents

Abstract

PURPOSE:To improve the yield of simultaneous production of many cells by providing a recessed part in the side part of another seal pattern adjacent to a seal pattern constituting a liquid crystal charging hole to take a sufficient distance between the front end of the seal pattern constituting the front end of the charging hole and the side part of the adjacent seal pattern. CONSTITUTION:When seal patterns 6a and 6b are continuously formed on a glass substrate base body 1A, a recessed part 8 is provided in a right side part 7 of a seal pattern 6b left adjacent to a seal pattern 6a1 constituting the charging hole of a right seal pattern 6a to partially cut this part 7. Consequently, the charging hole is not brought into contact with the right side part 7 of the adjacent seal pattern 6b at the time of heating and pressurizing, and heated air filled up in a cell surrounded with the right seal pattern 6a escapes from a gap 9 not to erroneously break the seal pattern 6a because of the existence of the gap 9. Thus, the yield of simultaneous production of many cells is improved.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method for manufacturing an LCD cell, and in particular, to a method for manufacturing an LCD cell, particularly when bonding upper and lower glass substrate base materials through a sealing material by heating and applying pressure. Another feature is that the seal pattern can be prevented from bursting, and the yield for manufacturing multiple pieces is high.

[Conventional technology]

Figures 3 to 5 are explanatory diagrams of conventional examples, with Figure 3 being a cross-sectional view of the cell, Figure 4 being a plan view of the glass substrate base material on which a seal pattern is formed before heating and pressurizing, and Figure 5. is a plan view after heating and pressurization.

In FIG. 3, 1 is an upper glass substrate, 2 is a lower glass substrate, and both glass substrates 1 and 2 are bonded together via a sealing material 3 made of thermosetting resin such as epoxy resin to form a cell 4. Liquid crystal 5 is injected inside.

By the way, in the conventional cell manufacturing method, as shown in FIG. 4, for example, a seal pattern 6 is continuously formed on one surface of the upper glass substrate base material IA, and the seal pattern 6 is formed continuously from one base material mA. In order to make it possible to take as many pieces as possible, the seal pattern 6 of the part corresponding to the injection port of the seal pattern 6a on the right side is
The distance between as and the right side 7 of the left sealer fi-76b is printed and formed as close as possible, and after superimposing the lower glass substrate base material (not shown) on such glass substrate base material IA. After heating and pressurizing to form a large number of cells #4..., cells 4 on the sides were cut.

[Problem that the invention seeks to solve]

However, in the conventional cell manufacturing method, as shown in FIG.
Since the pattern ea1 is close to the side part 7 of the seal pattern 6b, the pattern ea1 collapses and comes into contact with the side part 7 of the left seal pattern 6b, which causes the inside of the cell 4 surrounded by the first seal pattern 6a to be in a sealed state. , the air inside the cell 4 expands thermally and the seal pattern 6a ruptures, rendering it useless as an LCD cell and resulting in a poor yield when producing a large number of cells.

The present invention attempts to eliminate the above-mentioned conventional drawbacks, and an object of the present invention is to heat and press the upper and lower glass substrate base materials through a sealing material to bond them together. It is an object of the present invention to provide a method for manufacturing LCD cells that does not cause the seal pattern to rupture and has a high yield when manufacturing a large number of cells.

(Means for Solving the Problems) In order to achieve the above objects, the present invention continuously forms a large number of seal patterns on at least one of the upper and lower glass substrate base materials, and In an LCD cell manufacturing method in which individual cells are formed by cutting after bonding substrate base materials via a sealing material, a seal pattern constituting a liquid crystal injection port of a seal pattern formed on a glass substrate base material. A recess is provided on the side of the other adjacent seal pattern.

[Effect]

According to the present invention, as described above, a concave portion is provided in the other seal adjacent to the seal pattern constituting the liquid crystal injection port, and a concave portion is provided in the seal pattern adjacent to the seal pattern constituting the tip of the liquid crystal injection port. Since we have provided a sufficient distance between the sides of the seal pattern, when the upper and lower glass substrate base materials are bonded together via the sealant and heated and pressurized, even if the seal pattern that makes up the injection port is crushed, the adjacent There is no contact with the sides of the seal pattern.

Therefore, thermally expanded air is not sealed in the cells surrounded by the seal pattern, so that a part of the seal pattern will not accidentally burst.

Therefore, the yield of multi-piece production is improved.

〔Example〕

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a plan view of the glass substrate base material before heating and pressurizing, and FIG. 2 is a plan view of the glass substrate base material after heating and pressurizing. Note that the same parts as those of the conventional example shown in FIGS. 3 to 5 are given the same reference numerals, and redundant explanation will be omitted.

The difference between the present invention and the conventional example is, as shown in FIG. 6al This is a point where a concave portion 8 is provided in the right side portion 7 of the left adjacent seal pattern 6b facing K and is partially cut.

According to the above-described embodiment of the present invention, as described above, the upper glass substrate base material IA and the lower glass substrate base material are overlapped by providing the recess 8 on the right side of the left-adjacent seal pattern 6b, When heated and pressurized, the pattern 6at forming the injection hole of the right seal pattern 6a is crushed;
Since there is no contact with the right side 7 of the adjacent seal pattern 6b and there is a gap 9, the heated air filling the cells 4 surrounded by the right side seal pattern 6a is
Because it escapes from the gap 9, the seal pattern 6a is accidentally
will not explode. Therefore, the yield of multiple pieces is improved.

〔Effect of the invention〕

According to the present invention, as described above, thermally expanded air is not sealed in the cells recessed by the seal pattern formed on the glass substrate base material, so that the seal pattern is not ruptured by mistake. There isn't. Therefore, the yield of multi-piece production is improved.

[Brief explanation of the drawing]

Figures 1 and 2 are explanatory diagrams of an embodiment of the main wall βn.
The figure is a plan view of the glass substrate base material on which a seal pattern is formed before heating and pressurizing, Figure 2 is a plan view of the same after heating and pressurizing, and Figures 3 to 5 are conventional In the explanatory diagrams of the example, Fig. 3 is a cross-sectional view of the cell, Fig. 4 is a plan view of the glass substrate base material on which a seal pattern is formed before heating and pressurizing, and Fig. 5 is also a plan view after heating and pressurizing. FIG. 1... Upper glass substrate, lA... Glass substrate base material, 2... Lower glass substrate, 3...
...Sealing material, 4...Cell, 5...
Liquid crystal, 6a, 6b...Seal X pattern, 6a
,... Seal pattern forming the injection port, 7.
...Side part of seal pattern 6b, 8...
Recess, 9... Gap. 78 Figure 2 Figure 3 Figure 4 Figure 5 Less

Claims (1)

[Claims] An LCD cell in which a large number of seal patterns are continuously formed on at least one of the upper and lower glass substrate base materials, both glass substrate base materials are pasted together via a sealant, and then individual cells are formed by cutting. In the manufacturing method, a concave portion is provided on the side of the seal pattern formed on the glass substrate base material adjacent to the seal pattern constituting the liquid crystal injection port, and the upper and lower glass substrate base materials are separated. A method for manufacturing an LCD cell, characterized in that the seal pattern corresponding to the liquid crystal injection port of the seal pattern and the side portions of adjacent seal patterns are prevented from coming into contact with each other when heat and pressure bonding is performed via a sealing material.