JPS60126625A - Liquid crystal display element - Google Patents

Abstract

PURPOSE:To prevent foaming of a liquid crystal layer due to a low temperature, and also to keep a substrate gap uniform by making a dispersion area of a spacer material of a liquid crystal display element larger than an effective display area, and also providing an area in which no spacer material exists, between the dispersion area of the spacer material and a sealing material. CONSTITUTION:In a liquid crystal display element having an especially large display area, a dispersion area 7 of a spacer material between electrode substrates having the respective electrodes is made larger than an effective display area 8, and an area 9 in which a spacer material does not exist at all is provided between a sealing material 5 and the area 7. Even if the element becomes a low temperature and a liquid crystal 6 contracts, the area 9 absorbs its volumetric variation hollow and generates no foam on the liquid crystal layer. Also, even if a thickness of a sheath material 5 is a little uneven, it is reduced that the electrode substrate is deformed in the area 9 part and a gap failure of the effective display area 8 is caused. In this way, a uniform display which causes no defect is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a liquid crystal display device, and particularly to a gear lag control structure between two electrode substrates that is suitable for a liquid crystal display device having a large device area.

[Background of the invention]

As is well known, as shown in FIG. 1, a liquid crystal display element is constructed by sealing the peripheries of two electrode substrates 3.4 on which electric bodies 1.2 are formed with a sealing material, and sealing a liquid crystal material 6 inside. It will be done.

By the way, when the display area becomes large enough to accommodate a liquid crystal display element, the spacer material is uniformly dispersed between the two electrode substrates 3 and 4. As a method for dispersing the spacer material, a spinning method using a spinner and a blowing method using a spray are used.
It can be distributed throughout the plate 3.4. In addition, in the figure,
81 indicates an effective display area.

However, conventionally, the spacer material is dispersed over the entire surface of the area 7 shaded by diagonal lines in FIG. Therefore, when the transparent material 6 contracts when the temperature is lowered, the volume change of the liquid crystal material 6 can be absorbed.
Therefore, when the high IjIll product becomes large, a gap occurs in which air bubbles are generated within the system. Furthermore, as the element area becomes larger, the sealing material 5 is not crushed uniformly, making it easier for gap defects to occur near the seal.

[Purpose of the invention]

An object of the present invention is to provide a liquid crystal display element that does not generate bubbles due to low temperatures and has a uniform gap between electrode substrates.

[Summary of the invention]

The present invention is a liquid crystal display element in which the periphery of two electrode substrates is sealed with a sealing material, the spacer material is dispersed between the electrode substrates, and the liquid crystal material is sealed. The display area is larger than the display area and is characterized by providing an area where no spacer material exists between the spacer material dispersion area and the sealing material.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to FIG. Note that the same members or similar parts as in FIG. 1 are denoted by the same reference numerals, and explanations BA thereof will be omitted. The spacer material dispersion region 7 is
The effective display area 8 is larger than the effective display area 8, and a region 9 where no spacer material is present is provided between the spacer material distribution region 7 and the sealing material 5.

As described in PIff, methods of partially dispersing the spacer material include masking the non-essential parts and spraying the spacer material from above, or printing an insulating group or alignment film on the ML ball substrate. In this case, a method is used in which a spacer material is mixed therein and printed directly together with the insulating film and alignment film.

In this way, since the region 9 where no spacer material is present is provided between the spacer material dispersion region 7 and the sealing material 5, even if the liquid crystal material shrinks due to low temperature, the region where no spacer material is present is maintained. Nine portions of the electrode substrate are recessed to absorb changes in the volume of the liquid crystal material.

For this reason, even at low temperatures, Kikai is less likely to occur. Furthermore, even if the thickness of the sealing material 5 varies to some extent, since there is no spacer material near the sealing material 5, the electrode substrate will be deformed in the area 9 where no spacer material exists, resulting in a gap defect up to the effective display area 8. is less likely to be reached.

In the above embodiment, the region 9 in which no spacer material exists is provided all around the long side and the short side, but it is also effective to provide it at least only on the long side.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, in a liquid crystal display element in which the peripheries of two electrode substrates are sealed with a sealing material, a spacer material is dispersed between the electrode substrates, and a liquid crystal material is sealed. Since the spacer material dispersion area is larger than the effective display area, and a region where no spacer material exists is provided between the spacer material dispersion area and the sealing material, air bubbles are not generated due to low temperature. 1%
The gap between the substrates can be made uniform.

[Brief explanation of the drawing]

1-1 shows a conventional example, (a) is a front view, (b) is a sectional view, and FIG. 2 is a front view showing an embodiment of the present invention. 3.4...electrode substrate, 5...sealing material, 6...
...Liquid crystal material, 7.. Dispersion area of spacer material, 8.
...Effective display area, 9...A region where no spacer material exists.

Claims (1)

[Claims] In a liquid crystal display element in which the periphery of two rIL electrode substrates is sealed with a sealing material, a spacer material is dispersed between the electrode substrates, and a liquid crystal material is sealed, the dispersed area of the spacer material is shifted from the effective display area. 9. A liquid crystal display element, characterized in that the size of the liquid crystal display element is approximately 9, and a region in which no spacer material is present is provided between the spacer material dispersion region and the sealing material.