Device for manufacturing liquid crystal panel

Abstract

A device for manufacturing a liquid crystal panel is enabled to prevent the temperature of the liquid crystal panel from rising when applying a light for polymerizing (hardening) the ultraviolet ray reaction materials. A liquid crystal panel (3) containing liquid crystal (3c) with ultraviolet ray reaction materials and sealed between two light transmitting substrates (glass substrates) (3a,3b) is applied a voltage and meanwhile irradiated by a light irradiation part (1). A lamp which emits the total radiation illumination a within a wavelength range between 310nm to 360nm greater than the total radiation illumination b within a wavelength range between 360nm to 570nm is applied as the light source (1a) of the light irradiation part (1). The lamp can be a fluorescent lamp with rare gas. By applying the lamp, the temperature of the liquid crystal panel can be held at the minimum and the pretilt-angle can be prevented from deviation. Furthermore, the ultraviolet ray reaction materials can be effectively prevented from hardening.

Description

technical field [0001] The present invention relates to a method of manufacturing a liquid crystal panel of the MVA (Multi-domain Vertical Alignment) method, and more particularly relates to encapsulating liquid crystals having alignment properties by applying a voltage and reacting to ultraviolet rays to polymerize between two glass substrates. The material obtained by mixing optically active substances utilizes a liquid crystal panel manufacturing apparatus that irradiates the liquid crystal panel with ultraviolet rays to polymerize the ultraviolet-ray reactive material, thereby forming an alignment film on a glass plate. Background technique [0002] Figure 12 A configuration example of a liquid crystal panel is shown. The liquid crystal panel 50 is a structure in which a liquid crystal 58 is sealed between two translucent substrates (the first glass substrate 51 and the second glass substrate 52), and a plurality of active elements (for example, thin film transistors) a...

AI Technical Summary

Problems solved by technology

[0021] However, the size of liquid crystal panels has increased in recent years (for example, 2m x 2m or more), and at the same time, the platform for placing liquid crystal panels has also increased in size

When the temperature of the liquid crystal panel rises due to heating, a large cooler is required to lower the temperature, which increases the cost of the device

In addition, if the temperature rises, it will be difficult to control the temperature distribution in a large area as described above.

[0022] In addition, if the temperature rises during irradiation, the translucent substrate (first glass substrate 51 ) on the side to which light is irradiated may expand due to thermal expansion, and the liquid crystal panel may be deformed, causing defects.

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