JPH09269492A - Liquid crystal injecting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve efficiency and yield at the time of injecting ferroelectric liquid crystals and antiferroelectric liquid crystals by vacuuming liquid crystal panels, then subjecting these panels to vacuum evacuation under heating and further to sufficient vacuum evacuation under heating. SOLUTION: This device has a first vacuum chamber 11 where the liquid crystal panels 23 are arranged and a second vacuum chamber 12 where a liquid crystal injecting reservoir 18 for storing the liquid crystals 17 is arranged. Further, the device has heaters 14 for heating the liquid crystal panels disposed in the first vacuum chamber 11, an auxiliary heating lamp 15, a hot plate 16 for heating the liquid crystal injecting reservoir 18 and a shutter 20 to be disposed in the opening between the first vacuum chamber 11 and the second vacuum chamber 12. The vacuum evacuation under heating of the liquid crystal panels 23 is executed in the first vacuum chamber 11 to sufficiently drive out the gases sticking to the surfaces within the liquid crystal panels 23 and the gases within the substrates and thereafter, the liquid crystals 17 of the ferroelectric liquid crystals and antiferroelectric liquid crystals installed in the second vacuum chamber 12 are raised to the Iso point or above on the hot plate 16. Then, the restoration of the inside to the atm. pressure is made possible and the shortening of the time is made possible, by which the efficiency is enhanced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal injecting device for injecting a ferroelectric liquid crystal or an antiferroelectric liquid crystal between two substrates constituting a liquid crystal panel.

[0002]

2. Description of the Related Art The structure of a liquid crystal panel using ferroelectric liquid crystals and antiferroelectric liquid crystals will be described with reference to the sectional view of FIG. As shown in FIG. 2, a liquid crystal panel using a ferroelectric liquid crystal or an anti-ferroelectric liquid crystal uses a first substrate 21 and a second substrate 22. When the liquid crystal panel 23 is formed using the first substrate 21 and the second substrate 22, first, a transparent conductive film is provided on the first substrate 21, patterning is performed, and then the transparent electrode 24 is used. Form the wiring. After that, the alignment film 2
After forming 5, the alignment treatment is performed.

Similarly, the second substrate 22 is provided with a black matrix 26 made of metal such as chrome or resin, and a color filter 26 is provided thereon. Further, a protective film 28 made of acrylic resin or the like is provided thereon, a transparent electrode film is provided by a low temperature sputtering method, patterning is performed, and wiring is formed by the transparent electrode 24. After that, the alignment film 25 is formed, and then an alignment treatment is performed.

After that, a thermosetting adhesive is formed around the pixels on the first substrate 21 as a sealing material 29. Second
The gap material 30 made of plastics or glass is sprayed on the substrate 22 of FIG.

Further, the first substrate 21 and the second substrate 22 are attached to each other with reference to an alignment mark (not shown) provided around the substrates of the first substrate 21 and the second substrate 22. At this time, a photocurable adhesive or a thermosetting adhesive is used as the sealing material 29. Then, in order to cure the sealing material 29, it is baked in a furnace at a temperature of 120 ° C. to 160 ° C. for 1 hour to 2 hours while applying a pressure of 0.2 to 2.0 kg / cm ² .

After that, a liquid crystal 17 of ferroelectric liquid crystal or anti-ferroelectric liquid crystal is injected between the first substrate 21 and the second substrate 22 to form a liquid crystal panel 23. Here, the liquid crystal 17 of the ferroelectric liquid crystal or the anti-ferroelectric liquid crystal has a viscosity at room temperature of about 20 cp as compared with a normal nematic liquid crystal having a viscosity of about 1 cp.
It is very high, from 00 cp to 120 cp.

Here, in the conventional liquid crystal injection method utilizing vacuum, the liquid crystal injection reservoir in which the liquid crystal 17 of the ferroelectric liquid crystal or the antiferroelectric liquid crystal is stored after the liquid crystal panel 23 is evacuated in a vacuum atmosphere. Even if nitrogen gas is introduced into the vacuum atmosphere and leaked at the same time as being immersed in the liquid, it is impossible to inject it into the liquid crystal panel 23 only by the atmospheric pressure.

A conventional method for injecting liquid crystal into a liquid crystal panel will be described with reference to FIG. FIG. 3 is a perspective view showing a method of injecting liquid crystal into a liquid crystal panel using a liquid crystal injecting device in the related art. As shown in FIG. 3, the second substrate 21
The injection hole 31 is provided in the terminal portion 33 on the injection hole 31 side, and liquid crystal 17 of highly viscous ferroelectric liquid crystal or antiferroelectric liquid crystal is placed on both ends of the injection hole 31 on the terminal portion 33 using a spatula, On a multi-stage hot plate installed in the liquid crystal injection device 1
Place horizontally on 6.

After that, the liquid crystal panel 23 is attached to the liquid crystal injection device 1.
After the degree of vacuum in 3 is set to 0.01 Torr for 1-2 hours, the hot plate 16 is heated to the Iso point or higher of the liquid crystal 17 of the ferroelectric liquid crystal or the antiferroelectric liquid crystal. In reality, since the liquid crystal injection device 13 is in a vacuum, there is no radiation and convection, and therefore it is necessary to heat the liquid crystal injection device 13 to a temperature higher than the Iso point measured at normal pressure.

After that, when reaching the Iso point or higher in a vacuum, the liquid crystal 17 of the ferroelectric liquid crystal or the anti-ferroelectric liquid crystal starts melting as shown in FIG. Thereafter, the liquid crystal 17 further decreases in viscosity and starts to flow in the vicinity of the injection hole 31, and eventually the injection hole 3
1 is closed by a liquid crystal 17 of ferroelectric liquid crystal or anti-ferroelectric liquid crystal having low viscosity.

When the injection hole 31 is closed by the liquid crystal 17 of the ferroelectric liquid crystal or the anti-ferroelectric liquid crystal, air or nitrogen is used to leak in the liquid crystal injection device 13, and the liquid crystal 17 is stored in the liquid crystal panel 23. , And the injection is completed.

However, in the means used shown in FIG. 3,
If the liquid crystal panel 23 is formed of a protective film 28 such as a modified acrylic resin or epoxy resin provided to prevent the color filter 26 from a substance having a strong polarity such as liquid crystal, the liquid crystal panel 23 is completely filled up to the corner. Is impossible.

Liquid crystal 17 of ferroelectric liquid crystal or anti-ferroelectric liquid crystal
In the case of, in order to heat the entire liquid crystal panel 23 to the Iso point or higher, various gases are generated from the color filter 27 provided on the second substrate 22 and the protective film 28 thereon,
The vapor pressure inside the liquid crystal panel 23 rises, and the liquid crystal 17 entering from the injection hole 31 is driven back.

Further, since the gap dimension which is the thickness of the liquid crystal panel 23 (thickness of the liquid crystal layer) is as thin as 1.5 to 1.7 μm, even if the generated gas is minute, it occupies a large area and the first substrate It is difficult to completely inject the liquid crystal 17 between the substrate 21 and the second substrate 22.

In order to eliminate this deficiency, in the liquid crystal panel 23 in which the color filter 27 and the protective film 28 are formed, first, the liquid crystal 17 of the ferroelectric liquid crystal or the antiferroelectric liquid crystal is provided at both ends of the injection hole 31. The liquid crystal panel 23 is put in vacuum as it is, and in the case of the liquid crystal panel 23 having a diagonal of 5 to 6 inches on the hot plate, it is baked for about 12 hours at a temperature higher than the temperature at the time of injection by 10 ° C. or more by vacuum heating and baking. To do. This baking time depends on the size of the liquid crystal panel.

After baking for a sufficient time, the vacuum is released, the liquid crystal panel 23 is taken out of the liquid crystal injecting device 13, and at room temperature,
Cool under normal pressure. After that, as shown in FIG. 4, a liquid crystal 17 of ferroelectric liquid crystal or anti-ferroelectric liquid crystal is placed on both ends of the injection hole 31 with a spatula and further placed on the hot plate 16 in the liquid crystal injection device 13 to make a vacuum.

After that, a liquid crystal panel 2 having a diagonal size of 5 to 6 inches
In the case of No. 3, after vacuuming at a vacuum degree of 0.01 Torr for about 2 hours, the hot plate 16 is heated to melt the liquid crystal 17 to close the injection hole 31, and at the time of closing the liquid crystal injection device 13 using air or nitrogen. Leak inside the liquid crystal panel 2
Put liquid crystal 17 in 3.

By using this liquid crystal injecting means, it is possible to completely inject the ferroelectric liquid crystal or the anti-ferroelectric liquid crystal 17 into the liquid crystal panel 23 in which the color filter 27 and the protective film 28 are formed without any space. . However, this liquid crystal injection means takes too much time from the start to the end of injection, and is not efficient.

[0019]

As described above, in the liquid crystal injecting means of the prior art, a highly viscous liquid crystal such as a ferroelectric liquid crystal or an antiferroelectric liquid crystal is interspersed in a liquid crystal panel provided with a color filter or a protective film. In the case of completely filling without filling, once, after emptying the liquid crystal panel in the empty state at a temperature of the liquid crystal Iso point or higher in vacuum, take out the liquid crystal panel from the vacuum system, and after cooling it, a terminal provided on the side with the injection hole After the liquid crystal is placed on the part with a spatula, it is necessary to evacuate it for 2-3 hours and inject it.

Further, in such a conventional liquid crystal injecting means, it is necessary to attach liquid crystal to the terminals of one liquid crystal panel, which takes a lot of time. If a method using a dispenser or the like is used, the liquid crystal must be dropped onto the terminal portion 33 and the liquid crystal will be scattered immediately after dropping.

Further, in this method, since the terminal is located on the side where the injection hole is present, when the hole is later sealed, the sealing agent adheres to the wiring of the terminal portion, resulting in poor adhesion when mounting.

As described above, the conventional liquid crystal injecting means described above have the drawbacks of low yield and poor efficiency.

Therefore, an object of the present invention is to solve the above-mentioned drawbacks and to provide a liquid crystal injecting device capable of efficiently injecting a ferroelectric liquid crystal or an antiferroelectric liquid crystal and improving the yield. That is.

[0024]

In order to achieve the above object, the liquid crystal injection device of the present invention adopts the structure described below.

The liquid crystal injecting apparatus of the present invention includes a first vacuum chamber in which a liquid crystal panel is arranged, a second vacuum chamber in which a liquid crystal injecting reservoir for accumulating liquid crystal is arranged, and a liquid crystal panel provided in the first vacuum chamber. A heater, an auxiliary heating lamp, a hot plate for heating the liquid crystal injection reservoir, a first vacuum chamber and a second
And a shutter provided between the vacuum chamber and the vacuum chamber.

The liquid crystal injecting apparatus of the present invention has a first vacuum chamber in which a liquid crystal panel is arranged, a second vacuum chamber in which a liquid crystal injecting reservoir for accumulating liquid crystal is arranged, and a liquid crystal panel provided in the first vacuum chamber. A heater, an auxiliary heating lamp, a hot plate for heating the liquid crystal injection reservoir, a first vacuum chamber and a second
And a shutter provided between the liquid crystal panel heating heater and the vacuum chamber, and the liquid crystal panel heater is disposed so as to face the liquid crystal panel.

The liquid crystal injecting apparatus of the present invention includes a first vacuum chamber in which a liquid crystal panel is arranged, a second vacuum chamber in which a liquid crystal injecting reservoir for accumulating liquid crystal is arranged, and a liquid crystal panel provided in the first vacuum chamber. A heater, an auxiliary heating lamp, a hot plate for heating the liquid crystal injection reservoir, a first vacuum chamber and a second
And a shutter provided between the vacuum chamber and the vacuum chamber, and the auxiliary heating lamp provided in the first vacuum chamber is a halogen lamp or a far infrared lamp.

The liquid crystal injecting apparatus of the present invention has a first vacuum chamber in which a liquid crystal panel is arranged, a second vacuum chamber in which a liquid crystal injecting reservoir for accumulating liquid crystal is arranged, and a liquid crystal panel provided in the first vacuum chamber. A heater, an auxiliary heating lamp, a hot plate for heating the liquid crystal injection reservoir, a first vacuum chamber and a second
The liquid crystal stored in the liquid crystal injection reservoir is a ferroelectric liquid crystal or an antiferroelectric liquid crystal having a high viscosity.

As described above, in a liquid crystal injecting device for injecting a liquid crystal panel having a narrow gap by using a highly viscous liquid crystal such as a ferroelectric liquid crystal or an antiferroelectric liquid crystal, a liquid crystal heating heater and an auxiliary heating lamp are provided between the liquid crystal panels. Use to heat the liquid crystal panel.

Further, in the liquid crystal injection device of the present invention, the first vacuum chamber and the second vacuum chamber are partitioned by a shutter. Then, a liquid crystal injecting reservoir is arranged in the second vacuum chamber, and a hot plate is placed below the liquid crystal injecting reservoir so that a highly viscous liquid crystal can be put in the liquid crystal injecting reservoir.

First, a large number of empty liquid crystal panels with narrow gap dimensions are sandwiched between flat liquid crystal panel heaters,
The liquid crystal panel is heated by heat conduction. In addition, a structure is used to heat the liquid crystal panel from above by using an auxiliary heating lamp to assist the liquid crystal panel heater.

Further, the second vacuum chamber has a liquid crystal injection reservoir and a hot plate below the liquid crystal injection reservoir. First, the liquid crystal panel is sufficiently evacuated in the first vacuum chamber while being heated by the liquid crystal heater and the auxiliary heating lamp from above, and then the highly viscous ferroelectric substance in the liquid crystal injection reservoir provided in the second vacuum chamber. Liquid crystal or liquid crystal of anti-ferroelectric liquid crystal is heated to a low viscosity by heating the hot plate provided in the lower part, and then the lower hot plate and the liquid crystal injection reservoir above it are raised and attached to the injection hole of the empty liquid crystal panel. , Release the vacuum, leak, and inject the liquid crystal into the panel using atmospheric pressure.

As a result, it is possible to significantly reduce the injection time, the yield, and the cost of a liquid crystal panel of a ferroelectric liquid crystal or an antiferroelectric liquid crystal which is a highly viscous liquid crystal.

The liquid crystal panel having the color filter and the protective film formed on the first substrate or the second substrate as described above is evacuated in the first vacuum chamber and then arranged so as to face the liquid crystal panel surface. Vacuum evacuation is performed while heating with the liquid crystal panel heating heater and auxiliary heating lamp, and after further sufficiently heating and evacuation, the liquid crystal of the ferroelectric liquid crystal or antiferroelectric liquid crystal in the second vacuum chamber is injected into the liquid crystal. After heating above the Iso point using a hot plate provided underneath, open the shutter provided between the first vacuum chamber and the second vacuum chamber and attach to the injection hole provided at the bottom of the liquid crystal panel. Let

As a result, liquid crystal can be injected into the ferroelectric liquid crystal panel or antiferroelectric liquid crystal panel provided with an organic film such as a color filter or a protective film without bubbles. Furthermore, since the terminals of the liquid crystal injection holes can be eliminated, the number of liquid crystal panels that can be obtained from a large substrate increases. This makes it possible to reduce costs. Further, since the injection hole has no terminals and is flat, it is possible to inject a large number of sheets like the nematic liquid crystal, and it is possible to improve mass productivity.

[0036]

BEST MODE FOR CARRYING OUT THE INVENTION The structure of a liquid crystal injecting device according to the best mode for carrying out the present invention will be described below in detail with reference to the drawings. FIG. 1 is a perspective view showing a liquid crystal injection device for injecting liquid crystal into a liquid crystal panel of ferroelectric liquid crystal or antiferroelectric liquid crystal having high viscosity used in the embodiment of the present invention. FIG. 2 is a sectional view showing a liquid crystal panel. Hereinafter, description will be given with reference to FIG. 1 and FIG. 2 alternately.

As shown in FIG. 1, the liquid crystal injection device 13 of the present invention includes a first vacuum chamber 11 in which a liquid crystal panel 23 is arranged.
And a second vacuum chamber 12 in which a liquid crystal injection reservoir 18 for accumulating the liquid crystal 17 is arranged. And the first vacuum chamber 11
A liquid crystal panel heating heater 14 and an auxiliary heating lamp 15 are provided in the.

Further, a hot plate 16 for heating the liquid crystal 17 in the liquid crystal injection reservoir 18 is provided below the liquid crystal injection reservoir 18. Further, the first vacuum chamber 11 and the second vacuum chamber 12
A shutter 20 is provided between and.

The liquid crystal panel 23 is provided with organic substances such as the color filter 27 and the protective film 28. Further, the liquid crystal panel 23 has a narrow gap size of 1.0 μm to 2 μm between the first substrate 21 and the second substrate 22.

A liquid crystal panel heater 14 which is a surface heater is provided on the surface side of the liquid crystal panel 23. Further, the liquid crystal panel 23 and the liquid crystal panel heater 14 are provided with at least a pair of temperature control sensors (not shown).

The first substrate 21 has a transparent electrode 24 and an alignment film 25 on the transparent electrode 24. Second substrate 2
2 is provided with a black matrix 26 using a metal thin film such as chromium or a resin material, and on the black matrix 26, a color filter 27 and a protective film 28 made of modified acrylic resin or modified epoxy resin for protection are provided. Further, the second substrate 22 is provided with a transparent electrode 24, and an alignment film 25 is provided thereon.

Further, the first substrate 21 or the second substrate 2
The spherical gap member 30 made of plastic or silica of 1.2 μm to 2.0 μm is sprinkled on one side of No. 2 and the first
The substrate 22 and the second substrate 23 are attached to each other with a photo-curing or thermosetting adhesive to form a sealing material 29. further,
The sealing material 29 is cured by being irradiated with light or being heated so as to be cured, so that the liquid crystal panel 23 is obtained.

A plurality of liquid crystal panels 23 are arranged in the first vacuum chamber 11 so as to be in contact with the liquid crystal panel heaters 14 on both sides or one side. Further, an auxiliary heating lamp 15 including a halogen lamp or a far infrared heater is provided in the space above the plurality of liquid crystal panels 23. Further, there is no terminal on the side of the injection hole of the liquid crystal panel 23, and there is no step on the glass end face, which is flat.

In the second vacuum chamber 12, the hot plate 1
A liquid crystal injection reservoir 18 is placed on top of 6, and a liquid crystal 17 of a ferroelectric liquid crystal or an antiferroelectric liquid crystal is put therein in a room temperature state. At this time, the ferroelectric liquid crystal or antiferroelectric liquid crystal 17
Is highly viscous and paste-like because it is below the Iso point.

Further, the first vacuum chamber 11 and the second vacuum chamber 1
A shutter 20 is provided between the two so as to prevent the heat in the respective vacuum chambers from being transmitted as much as possible. Further, the liquid crystal panel 23, the liquid crystal panel heater 14 and the hot plate 16 are
A temperature sensor 19 composed of a thermocouple is provided to control the temperature from the outside.

Next, a liquid crystal injection method using the liquid crystal injection device shown in FIG. 1 will be described. First, the liquid crystal panel 23 and the liquid crystal panel heater 14 are alternately contacted with each other so that a plurality of them are stacked. At this time, the outer liquid crystal panel 23 is sandwiched between the liquid crystal panel heaters 14. Further, in order to reduce the power consumption, the liquid crystal panel heating heater 14 may be one, and the liquid crystal panel 23 may be adhered from both sides thereof.
The size of the liquid crystal panel heater 14 is the liquid crystal panel 23.
The length in the vertical direction is equal to or the same as the length in the vertical direction of the sealing material 29, and the length in the horizontal direction is set to a length that can be fitted into the side surface of the holder of the liquid crystal panel.

Next, a liquid crystal 17 of ferroelectric liquid crystal or anti-ferroelectric liquid crystal in a paste state at room temperature is placed on the liquid crystal injection reservoir 18 using a spatula. At this time, the liquid crystal 17 of the ferroelectric liquid crystal or the anti-ferroelectric liquid crystal is in the paste state because it is below the Iso point. The liquid crystal injection reservoir 18 is placed on the hot plate 16 installed in the second vacuum chamber 12.

Next, the first vacuum chamber 11 and the second vacuum chamber 1
2 is evacuated at the same time. At this time, the shutter 20
Put it closed. Uses a vacuum hydraulic pump (Atsucatello), and when the vacuum reaches 0.01 Torr, the first
The liquid crystal panel heating heater 14 and the auxiliary heating lamp 15 in the vacuum chamber 11 are turned on to heat the liquid crystal panel 23. In the liquid crystal panel 23 in which either the first substrate 11 or the second substrate 12 is provided with an organic substance such as the color filter 27 or the protective film 28, unreacted substances or various gases adsorbed on the surface of the organic substance are generated. Therefore, the temperature sensor 19 measures the surface temperature of the liquid crystal panel 23, and
Vacuum heating and emptying is performed at a temperature of ℃ or more for about 12 hours.

At this time, the liquid crystal 17 of the ferroelectric liquid crystal or the anti-ferroelectric liquid crystal installed in the second vacuum chamber 12 does not transfer heat because it is in a vacuum and separated by a shutter.

After the evacuation of the vacuum, the temperature of the hot plate 16 installed in the second vacuum chamber 12 is raised to the Iso point or higher of the liquid crystal 17 of the ferroelectric liquid crystal or the antiferroelectric liquid crystal. In reality, since it is in vacuum, convection does not occur and heat is transferred from the hot plate 16 to the liquid crystal injection reservoir 18 only by conduction. Therefore, the temperature of the temperature sensor installed outside is higher than the Iso point by 20 ° C. or more.

The anti-ferroelectric liquid crystal used this time has an Iso point of 103 ° C. at room temperature, but the liquid crystal injection device has an Iso point of 135 ° C.
Does not become liquid until the temperature reaches ℃. At the same time, the bubbles in the liquid crystal 17 are removed.

Liquid crystal 17 of ferroelectric liquid crystal or anti-ferroelectric liquid crystal
When the liquid becomes low-viscosity and becomes liquid, the hot plate 16 is raised, and the liquid crystal injection reservoir 18 previously aligned with the position of the injection hole is attached to the liquid crystal panel 23. The liquid crystal 17 is allowed to penetrate into the liquid crystal panel 23 by utilizing the capillary phenomenon for about 10 minutes without releasing the vacuum.

After that, the liquid crystal 17 leaks into the liquid crystal panel 23 at atmospheric pressure by leaking nitrogen gas or air. Nitrogen gas or air that leaks at this time should be warm air. This is for the purpose of preventing a sudden temperature change in the vacuum injecting machine due to the entry of nitrogen gas or air, and by lowering the liquid crystal panel surface temperature, the viscosity of the liquid crystal in the liquid crystal panel 23 increases. This is because the injection rate changes and a difference occurs in the injection rate, which causes generation of minute bubbles.

After the leak starts, the liquid crystal injection reservoir 18 and the liquid crystal panel 2 are filled until the liquid crystal 17 completely enters the liquid crystal panel 23.
3 continues heating.

[0055]

As is apparent from the above description, in the liquid crystal injection device of the present invention, the vacuum heating and evacuating of the liquid crystal panel is performed in the first vacuum chamber, and the gas attached to the inner surface of the liquid crystal panel is sufficiently removed. After the gas inside the substrate is discharged, the liquid crystal of ferroelectric liquid crystal or anti-ferroelectric liquid crystal installed in the second vacuum chamber is raised above the Iso point on the hot plate to return the inside of the liquid crystal injection device to atmospheric pressure. It can be done without a thing. Therefore, the time can be shortened and the efficiency can be improved.

Furthermore, it is not necessary to provide terminals for the liquid crystal of ferroelectric liquid crystal or anti-ferroelectric liquid crystal in the injection hole of the liquid crystal panel.
For this reason, the glass end face of the injection hole can be made flat like the nematic liquid crystal of the prior art, so that a normal liquid crystal injection reservoir can be used and a large number of injections can be made, thus improving mass productivity.

As described in the above embodiments, by using the liquid crystal injecting device of the present invention, it is possible to obtain a ferroelectric liquid crystal or an antiferroelectric liquid crystal panel which is free from fine bubbles and has a good display quality.

[Brief description of drawings]

FIG. 1 is a perspective view showing a configuration of a liquid crystal injection device according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a liquid crystal panel according to the present invention and a conventional technique.

FIG. 3 is a perspective view showing a method of injecting liquid crystal into a liquid crystal panel by using a liquid crystal injecting device according to a conventional technique.

FIG. 4 is a perspective view showing a method of injecting liquid crystal into a liquid crystal panel according to a conventional technique.

[Description of Reference Signs] 11 first vacuum chamber 12 second vacuum chamber 13 vacuum injector 14 liquid crystal panel heater 15 auxiliary heating lamps 16 hot plate 17 liquid crystal 18 liquid crystal injection reservoir 20 shutter

Claims (4)

[Claims] 1. A first vacuum chamber in which a liquid crystal panel is arranged,
A second vacuum chamber for arranging a liquid crystal injecting reservoir for accumulating liquid crystal, a liquid crystal panel heater and an auxiliary heating lamp provided in the first vacuum chamber, a hot plate for heating the liquid crystal injecting reservoir, and a first A liquid crystal injection device comprising: a shutter provided between the vacuum chamber and the second vacuum chamber. 2. A first vacuum chamber in which a liquid crystal panel is arranged,
A second vacuum chamber for arranging a liquid crystal injecting reservoir for accumulating liquid crystal, a liquid crystal panel heater and an auxiliary heating lamp provided in the first vacuum chamber, a hot plate for heating the liquid crystal injecting reservoir, and a first A liquid crystal injection device comprising a shutter provided between a vacuum chamber and a second vacuum chamber, wherein the liquid crystal panel heating heater is arranged so as to face the liquid crystal panel. 3. A first vacuum chamber in which a liquid crystal panel is arranged,
A second vacuum chamber for arranging a liquid crystal injecting reservoir for accumulating liquid crystal, a liquid crystal panel heater and an auxiliary heating lamp provided in the first vacuum chamber, a hot plate for heating the liquid crystal injecting reservoir, and a first A liquid crystal injection device comprising a shutter provided between the vacuum chamber and the second vacuum chamber, and a halogen lamp or a far infrared lamp is used as an auxiliary heating lamp provided in the first vacuum chamber. 4. A first vacuum chamber in which a liquid crystal panel is arranged,
A second vacuum chamber for arranging a liquid crystal injecting reservoir for accumulating liquid crystal, a liquid crystal panel heater and an auxiliary heating lamp provided in the first vacuum chamber, a hot plate for heating the liquid crystal injecting reservoir, and a first A liquid crystal injection, characterized by comprising a shutter provided between a vacuum chamber and a second vacuum chamber, wherein the liquid crystal stored in the liquid crystal injection reservoir is a ferroelectric liquid crystal having a high viscosity or an antiferroelectric liquid crystal. apparatus.