JPS6115129A - Manufacture of liquid crystal display cell - Google Patents

Abstract

PURPOSE:To prevent a spark from being generated between display electrodes by executing rubbing by using a mixed spinning cloth of carbon fiber having conductivity and chemical fiber having no conductivity. CONSTITUTION:Rubbing is executed by using a mixed spinning cloth of carbon fiber 1 and nylon fiber 2, or that which has raised a fiber cloth formed by wrapping the outside periphery of the carbon fiber 1 with chemical fiber materials 3. According to this constitution, the disorder of orientation caused by the generation of static electricity is not seen.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method for manufacturing a liquid crystal cell, and is used to eliminate disordered alignment of liquid crystal molecules caused by static electricity generated on the substrate surface during rubbing treatment. This relates to the method of

[Description of prior art]

Generally, especially in TN type liquid crystal display cells, it is necessary to align liquid crystal molecules uniformly and in one direction; the most common method is to rub the substrate surface in a specific direction with cotton cloth, chemical fiber cloth, etc. There was something. At this time, a large amount of static electricity σ) is generated on the substrate surface, and as a result, a potential difference occurs between the display electrodes at narrow intervals, generating sparks, and the generated heat θ) disturbs the alignment surface condition. This resulted in disordered orientation of liquid crystal molecules. Conventionally, an effective means to prevent this is to short-circuit the display electrode/ζ-turn before the rubbing process, and then cut off the short-circuited part along with the board after the rubbing process. In some cases, it may be difficult to provide the aforementioned short-circuited portion; and in the case of the multiple-crystal alternating/zeta-turn manufacturing method, if the aforementioned short-circuited portion remains outside the liquid crystal cell 7, it may be difficult to draw out the opposing substrate in a high-humidity environment. It may also cause mutual leakage between electrodes.

[Purpose of the invention]

The purpose of the present invention is to solve the above-mentioned conventional drawbacks, and in the rubbing process, the outer periphery of conductive carbon fiber and chemical fiber blend fabric, carbon fiber and natural fiber blend fabric, or carbon fiber σ) is removed. A rubbing process is performed using a piece of fiber cloth wrapped in chemical fiber material to reduce the amount of static electricity generated, thereby preventing sparks between display electrodes and, in turn, preventing disordered orientation of liquid crystal molecules. It is.

[Invention θ) Examples]

An example of the present invention is shown below.

Carbon fiber 1 and nylon fiber (・
When rubbing was performed using a blended fabric with 2 or a raised fiber cloth in which the outer periphery of carbon fibers was wrapped with chemical fiber material 6 as shown in Figure 2, no disturbance of orientation due to static electricity generation was observed. There wasn't.

On the other hand, as a comparative example, when a brushed nylon cloth was subjected to rubbing treatment, disturbances in orientation due to generation of static electricity were observed at the locations shown in FIG. 3 and 5.

〔Effect of the invention〕

As described above, according to the present invention, it is possible to prevent the generation of static electricity during the rubbing process, so that a better alignment process state can be obtained.

[Brief explanation of drawings]

FIG. 1 shows a blended yarn of carbon fiber and nylon fiber, which is an embodiment of the present invention.7 FIG. It is a fiber thread wrapped in polynisdel, etc., and Fig. 3 shows a general liquid crystal manual cell board. 1... Carbon fiber thread, 2... Nylon fiber thread, 6... Chemical fiber material-4. Transparent electrode. 5. Spark point, 6. Glass substrate. Patent applicant Citizen Jigen 1 Co., Ltd. Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] A liquid crystal display cell characterized in that it is subjected to rubbing treatment using either a blended fabric of carbon fiber and chemical fiber, a blended fabric of carbon fiber and natural fiber, or a fiber fabric in which the outer periphery of carbon fiber is wrapped with a chemical fiber material. Manufacturing method.