JPH0718998B2 - Liquid crystal device manufacturing method - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a method for manufacturing a liquid crystal cell of a liquid crystal device, and more particularly to a method for manufacturing a liquid crystal cell in a liquid crystal cell, in which a plurality of liquid crystal cells are simultaneously manufactured. The present invention relates to the arrangement of the opening of the sealing material of the counter substrate corresponding to the inlet.

[Prior Art] and [Problems to be Solved by the Invention] The liquid crystal injection port in the conventional liquid crystal cell is provided only on the side perpendicular to the side on which the lead terminals are provided (see FIG. 2). ). Therefore, when it is incorporated into the product as it is, it is necessary to increase the size of the product only for the sealing portion 7 or reduce the display area. On the other hand, if there is no margin in the length of the product itself in the direction of the sealing portion and the display area is not desired to be small, the injection port must be provided on the opposite side of the lead terminal portion. However, if the injection port is arranged in the center as it is, the liquid crystal injection ports of the upper and lower substrates, which are formed facing each other on the same substrate, just face each other and coincide with each other, and a region surrounded by the sealing material is formed. As a result, the air inside the region closed by the substrate and the sealing material may be compressed in the pressure bonding step or heating step of the liquid crystal cell, and the sealing material may burst. I had to.

The present invention has been made in view of the above conventional problems, and an object of the present invention is to prevent the rupture of the sealing material and to manufacture a large number of liquid crystal cells at the same time as in the prior art.

[Means for Solving Problems] In the present invention, a first electrode pattern and a second electrode pattern are formed on a substrate, and the two substrates are formed as a first electrode pattern on one of the substrates. The second electrode pattern on the other substrate faces each other so as to face each other, and is bonded through a seal material having a cutout portion at a portion to be a liquid crystal injection port, and then the first and the second A method for manufacturing a large number of liquid crystal cells by individually separating the areas where the two electrode patterns face each other, wherein two of the notches on the substrate facing each other have their center positions displaced from each other left and right. And a liquid crystal device manufacturing method.

FIG. 1 shows the basic form of the present invention. In the figure, reference numeral 1 denotes a glass plate, and display electrodes and a common electrode are formed on the inner surfaces of the glass plates arranged above and below (not shown). The periphery of these electrodes is surrounded by a frame-shaped sealing material 4, and the upper and lower electrode substrates are superposed on each other via the sealing material 4 to assemble a cell container, and then a liquid crystal material is injected from an injection port 8. Then, the injection port 8 is sealed and a liquid crystal cell is obtained.

In general, the lead wire of the common electrode is provided on the surface of the display electrode substrate 2 so as to be transferred, and the lead wire terminal from the display electrode and the common electrode from the common electrode are provided in a portion where one side of the display electrode substrate 2 is extended. Lead wire terminals are respectively provided.

According to the present invention, in the above structure, the positions of the injection ports in the upper and lower electrode substrates are provided on the sides facing the lead terminals, and the position of the liquid crystal injection port partitioned by the sealing material 4 is displaced from the center of the liquid crystal cell. It is arranged separately on the left and right.

[Operation] Since the position of the liquid crystal material injection port is displaced from the center, the compressed air inside the cell generated by the pressure bonding step and the heating step during cell formation is easily discharged.

[Embodiment] FIG. 3 is a plan view of a substrate showing an embodiment of the present invention.
First, the display electrode patterns 20 and the common electrode patterns 30 are alternately formed on the surface of the glass plate 10, and the sealing material 40 is formed in a convex shape as shown in the figure. At this time, the liquid crystal inlets 8 are displaced from the center of the liquid crystal cell, and the liquid inlets 8 are arranged adjacent to each other.

Next, the inward surface of the electrode substrate is rubbed in the same alignment direction 6 as shown in FIG. 4 to form an alignment film. When the electrode substrate thus obtained is overlapped and sealed so that the display electrode pattern 20 and the common electrode pattern 30 formed on the inner surface face each other as shown in FIG. 5, the cells are staggered. Are formed at the same time.
Next, after cutting from the cutting pattern 5 to form a cell container, the liquid crystal material is injected through the injection port 8, and then the injection port 8 is sealed to complete the liquid crystal cell (see FIG. 7).

In this case, since the alignment films of the upper surface electrode substrate 22 and the lower surface electrode substrate 33 are formed in the same direction as shown in FIG. 4, as shown in FIG.
And the orientation direction 6b of the lower electrode substrate 33 intersect with each other to form a crossed Nicol relationship.

If one of the sealing materials is connected at the time of injecting the liquid crystal, the injection port area can be increased while the injection port is closest to the center.

Further, the position of the injection port is not limited to the above-mentioned embodiment as long as it is not closed when the liquid crystal cell is completed.

EFFECTS OF THE INVENTION In the present invention, the liquid crystal material injection port of the liquid crystal cell is provided on the side facing the lead terminal and the position thereof is shifted from the cell center. It can be easily discharged and the rupture of the sealing material can be prevented. Moreover, the cell can be manufactured without any change in the conventional process.

[Brief description of drawings]

FIG. 1 is a diagram showing a basic form of the present invention, FIG. 2 is a diagram showing a conventional liquid crystal cell, FIG. 3 is a plan view of a substrate showing an embodiment of the present invention, and FIG. 4 is an orientation direction of the substrate. Fig. 5 is a plan view showing
FIG. 6 is a perspective view showing a state in which upper and lower substrates are combined, and FIG. 6 is a plan view showing an alignment direction in a state in which upper and lower substrates are combined,
FIG. 7 is a diagram showing a liquid crystal cell according to the present invention. 2 ... Display electrode substrate, 3 ... Common electrode substrate, 4 ... Sealing material,
7 ... Sealing part, 8 ... Injection port, 20 ... Display electrode pattern, 22 ...
Top electrode substrate, 30 ... Common electrode pattern, 33 ... Bottom electrode substrate.

Claims (1)

[Claims] 1. A first electrode pattern and a second electrode pattern are formed on a substrate, and the two substrates are provided with a first electrode pattern on one substrate and a second electrode pattern on the other substrate. The electrode pattern and the electrode pattern are opposed to each other, and are adhered to each other through a sealing material provided with a cutout portion at a portion to be a liquid crystal injection port, and then the first and second electrode patterns are opposed to each other. A method for manufacturing a large number of liquid crystal cells by individually separating the liquid crystal cells, wherein two of the cutout portions on the substrate which face each other are offset from each other in their center positions. Manufacturing method.