JP3407451B2 - Manufacturing method of liquid crystal display device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a liquid crystal display device used for information equipment terminals, game machines, televisions, advertising boards and the like.

[0002]

2. Description of the Related Art In recent years, along with the miniaturization and portableness of information equipment, a technique for reducing the power consumption of an apparatus is being studied because it is used for a long time with a battery. In particular, when a liquid crystal display device is used in the display portion of the device, a device without a backlight is being actively developed. For example, as a thing that can display bright without using a backlight,
Polymer-dispersed liquid crystal (PDLC) that does not use a polarizing plate has been developed (Japanese Patent Publication No. 3-52843, Japanese Patent Publication No. 61-61).
502128, Japanese Patent Laid-Open No. 4-227684, etc.). Also,
Since the amount of information handled by information devices has increased, colorization of display devices is also required along with power saving. Various methods have been tried to meet the demand for colorization. PD because it can display particularly bright colors
A method of combining an LC and a color filter is being studied (Japanese Patent Laid-Open No. 5-040276, etc.).

[0003]

However, in the prior art, in the case of color display, since the color filters were simply stacked, there was a problem that the types of polymer dispersed liquid crystal that can be enclosed between the substrates are limited. there were. That is, since the conventional color filter does not transmit the polymerization light (here, ultraviolet rays), the liquid crystal and the polymer precursor are encapsulated, and the polymer light is irradiated later to polymerize the polymer precursor to disperse the polymer. In the case of using the type liquid crystal, there is a problem that the color filter absorbs polymerization light, a polymer is not sufficiently generated, and as a result, a dark display with weak scattering degree is obtained. Further, when attempting to irradiate polymerization light from the back side in order to solve such a problem, there is a problem that it is difficult to polymerize the polymer precursor because the reflective electrode blocks the polymerization light.

Therefore, the present invention is intended to solve these problems, and an object of the present invention is to form a color filter on a front substrate and a reflective layer on a back substrate while forming a liquid crystal and a liquid crystal between these substrates. A structure for encapsulating a photopolymerizable polymer precursor and polymerizing the polymer precursor by polymerization light is provided. Further, a bright liquid crystal display device having a good contrast with no double reflection is provided. It is in.

[0005]

According to a method of manufacturing a liquid crystal display device of the present invention, a color filter is formed between a substrate and a substrate on which a reflective layer formed of a plurality of films having different refractive indexes is formed. The method comprises the steps of enclosing a liquid crystal and a polymer precursor, and irradiating polymerization light from the side of the substrate on which the reflective layer is formed to polymerize the polymer precursor, wherein the reflective layer is It is characterized by transmitting polymerization light.

The polymerization light has a wavelength of 300 nm to 400 nm.
The wavelength is nm.

Further, the reflective film has a thickness of 700 nm to 400 nm.
It is characterized by reflecting light in the wavelength range of nm.

The plurality of films are made of titanium dioxide, Z
It is characterized by containing a film selected from rO ₂ and ZnS and a film selected from magnesium difluoride, CeF ₃ , Al ₂ O ₃ and SiO ₂ .

The present invention will be described in detail with reference to Reference Examples and Examples.

[0010]

EXAMPLES Reference Example 1 Here, Reference Example 1 in which a liquid crystal and a polymer precursor are phase-separated in a liquid crystal phase is shown. FIG. 1 shows a partial cross-sectional view of a reflective color display device of this reference example. First, an empty panel for enclosing a liquid crystal and a polymer precursor will be described. First, a MIM element was formed on the substrate 8 as an active element. That is, the signal electrode 13, the insulating layer 12, and the reflective electrode 7 were formed and the surface thereof was oriented. The substrate 1 on the side opposite to this substrate was treated with a coupling agent, and then a polymerization light transmitting color filter 5 was formed. The color filter material used here will be described. An anthraquinone dye was used as the dye for the color filter. That is, as red, M370,
Green is a mixture of M361 and M137, blue is SI51
A mixture of 2 and M137 was used (all manufactured by Mitsui Toatsu Dyes Co., Ltd.). These anthraquinone dyes are used in the ultraviolet region (300
(nm to 400 nm) has little absorption.

Methyl methacrylate was used as a binder for these dyes. Polymethylmethacrylate is 30
It hardly absorbs light longer than 0 nm. Each of the dyes was dissolved in methyl methacrylate, irradiated with polymerization light to be polymerized and cured to obtain a color filter. More specifically, a single color filter was formed and then irradiated with polymerization light to be cured to print the next color filter. This operation was repeated to form a color filter.

A transparent electrode 2 was vapor-deposited on this, and a pattern was formed by etching. The color filter thus manufactured transmitted about 50% of polymerized light having a wavelength of 300 nm to 400 nm. Next, this surface was subjected to orientation treatment. The two substrates were faced to each other with a gap of about 5 μm, and the periphery was adhered.

A mixture of the liquid crystal and the polymer precursor sealed between the substrates will be described. TL made by Merck as a liquid crystal
A 7: 3 mixture of 205 and BL007 was used. This liquid crystal contains 99.2% by weight of 0.8% by weight of chiral component R101.
1 (manufactured by Merck) was mixed.

95% by weight of this liquid crystal was mixed with 3.4% by weight of terphenyl methacrylate and 1.6% by weight of terphenyl dimethacrylate, and the mixture was sealed in the empty panel shown above. Further, from the substrate 1 side, the polymerization light (from 300 nm to 400
nm) in the liquid crystal phase. Thus, the polymer precursor was polymerized. Further, the surface of this display device was subjected to antiglare treatment and antireflection treatment to complete the display. When an electric field was applied to this display device, red pixels could display red, green pixels could display green, and blue pixels could display blue. When the electric field is removed,
The brightness decreased and the display became dark. When connecting the driver circuit and the controller circuit for color display and displaying a computer screen or a television screen, good color display was possible.

The color filter dye used here is
Other than the anthraquinone dye, any dye that transmits 300 nm to 400 nm can be used. For example 1
Parts of azo dyes, perylene dyes, naphthoquinone dyes,
One part is a phthalocyanine dye.

As the photopolymerizable polymer precursor for the binder used in the color filter, acrylic acid or methacrylic acid, an epoxy derivative or the like can be used in addition to methyl methacrylate. As the heat-polymerizable polymer precursor, the above-mentioned polymer precursor mixed with a heat-polymerization initiator or a polycarbonate resin precursor can be used. In any case, it is possible to use a polymer precursor that transmits a polymerization light of 300 nm to 400 nm in a polymer state. Further, among the polymers obtained by polymerizing the polymer precursor, a polymer having good heat resistance, which is soluble in a solvent and insoluble in a liquid crystal, can also be used.

In printing a color filter, when a color filter of the next color is polymerized and cured and then a color filter of the next color is printed, it is possible to prevent the colors from being mixed with each other and the mask from becoming dirty. You can

The active element used here is, in addition to the MIM element, a two-terminal element such as a back-to-back MIM element, a lateral MIM element, a diode element, a varistor element, a ferroelectric element, a polysilicon TFT element, and an amorphous silicon. A 3-terminal element such as a TFT element or a field effect transistor can be used. Of course, it is not necessary to form an active element, and in that case, static drive or simple matrix drive is performed.

The liquid crystal used here is preferably one having a large Δn and a low driving voltage, and when combined with an active element, it is desirable to use a liquid crystal having a higher specific resistance and good reliability.

The polymer precursor to be mixed with the liquid crystal is preferably a polymer precursor having a large Δn and good polymerizability, and a polymer having a rigid molecule is desirable. Mixing ratio to liquid crystal is 2 to 20% by weight
Weight% is desirable, and if it is more than this range, the driving voltage becomes high and it is not practical, and if it is less than this range, light scattering hardly occurs.

The chiral component mixed with the liquid crystal can be used as long as it has an effect of twisting the alignment of the liquid crystal,
Since the scattering property changes depending on the added amount, it is optimized according to the application.

In this reference example, the dichroic dye was not mixed in the liquid crystal, but the contrast can be improved by mixing the dichroic dye in the liquid crystal.

Although the surface of the display device is subjected to the non-glare treatment and the anti-reflection treatment, either one may be applied or neither treatment may be applied.

In the present reference example, the substrate surface is subjected to the alignment treatment, but it can be used as a display device without the alignment treatment. If the alignment treatment is not performed, the directivity of scattered reflected light is lost.

Comparative Example 1 When a phthalocyanine-based pigment was used as a color filter dye instead of the color filter material of Reference Example 1, the same display device as in Reference Example 1 was used by using a phthalocyanine pigment that did not transmit polymerization light. As a result, the polymer precursor did not polymerize in the liquid crystal, and light was not scattered even when an electric field was applied, and display could not be performed.

Reference Example 2 In this Reference Example, an example was shown in which a color filter containing a conductive substance was formed on an electrode. FIG. 2 shows a simple cross-sectional view of the display device of this reference example. A display device was manufactured by a method substantially similar to that of Reference Example 1. Since the structure of the color filter is different, this part will be described. First, ITO was formed as the transparent electrode 2 on the substrate 1 and the electrode pattern was etched. Further, the color filter liquid prepared by adding the ITO powder to the dye and methyl methacrylate shown in Reference Example 1 was printed on each electrode in conformity with the pattern on each electrode. After forming one color of the color filter, it was irradiated with polymerization light to be cured, and the next color filter was printed. This operation was repeated to form a color filter. Further, here, a TFT element is used as an active element. Specifically, the gate electrode 15, the gate insulating layer 18, the semiconductor layer 16, the drain electrode 17, and the source electrode 14 were formed on the surface of the substrate 8 to form the reflective electrode 7. The other points are the same as in Reference Example 1. When a display device was manufactured using the substrate 1 with the color filter and the substrate 8 with the TFT element, the same display could be performed with the same drive voltage as in Reference Example 1.

The conductive material used here is not limited to ITO particles, but other inorganic transparent conductive materials such as nesa particles,
As the high dielectric substance, PLZT, PZT, a copolymer of vinylidene fluoride and trifluoroethylene, or the like can be used.

As the method for forming the color filter, the coating method is used here, but an electrodeposition method can also be used.
Specifically, the substrate 8 with a patterned electrode is immersed in an electrolytic bath containing a dye and a surfactant, and the electrode of the electrode 7 on which a color filter is to be formed is energized. Repeat this for 3 colors,
It forms a color filter. If a conductive substance is put in this electrolytic cell, the conductive substance is taken into the color filter. Then, a binder for protecting the filter is applied to complete the color filter. As this binder, one that transmits polymerization light is used.

For the other members and conditions, the members and conditions shown in Reference Example 1 can be used.

Reference Example 3 In this Reference Example, an example in which the conductive material is not mixed in the color filter with the configuration of Reference Example 2 is shown. A color filter was printed on the electrode pattern by using a color filter liquid in which ITO particles were not mixed in Reference Example 2. After forming one color of the color filter, it was irradiated with polymerization light to be cured, and the next color filter was printed. This operation was repeated to form a color filter. When a display device was manufactured using this substrate with a color filter in the same manner as in Reference Example 2, the same color display could be performed although the driving voltage was high.

As the method for forming the color filter, the electrodeposition method as shown in Reference Example 2 may be used in addition to the coating method.

For the other members and conditions, the members and conditions shown in Reference Example 1 can be used.

Reference Example 4 In this reference example, an example in which the present invention is applied to a case where a liquid crystal and a polymer have a gel network structure is shown. Basically, it is the same as in Reference Example 1, but the mixture of the liquid crystal and the polymer precursor enclosed in the empty panel is different. TL202: MJ9 as liquid crystal
1261 = 8: 2 mixture and chiral component R10
0.5% by weight of 11 was mixed to obtain a liquid crystal used here.
Next, 96% by weight of this liquid crystal and 3% by weight of the polymer precursor C6H (manufactured by Philips) are mixed, and further 1% by weight of Irgacure 184 as a polymerization initiator is mixed and sealed in the above empty panel to polymerize light. (300 to 400 nm, intensity 3.5 mW / cm 2) was irradiated in the liquid crystal phase. Thereafter, the display device was completed in the same manner as in Reference Example 1. As a result, the same color display as in Reference Example 1 was possible.

In this reference example, an example using a gel network type material was shown in reference example 1, but the same can be applied to reference examples 2 and 3.

As the polymer precursor used here, in addition to the materials shown here, a material having a relatively long molecular length and a flexible skeleton can be used. Further, a polymerizing group such as methacrylic acid, acrylic acid and epoxy, and alkyl, phenyl, biphenyl and the like can be contained in the side chain or the main chain. For example, Aronix and Reseda macromonomer manufactured by Toagosei Co., Ltd., KAYARAD and KAYAMER manufactured by Nippon Kayaku Co., Nopcomer manufactured by San Nopco, S
ICOMET and Photomer, EPOTOTE, NEOTOTE, TOPREN and DAPTOTE manufactured by Tohto Kasei Co., Epicoat manufactured by Yuka Shell Co., Adeka Resin, Adeka Optimer and Adeka Opton manufactured by Asahi Denka Co., 2200 series manufactured by ThreeBond Co., Ltd., Showa Polymer Co., Ltd. Lipoxy and Spyrac, products of Nippon Polyurethane, and the like can be used.

For the other members and conditions, the members and conditions shown in Reference Example 1 can be used.

Comparative Example 2 When a phthalocyanine pigment was used as a color filter dye instead of the color filter material of Reference Example 4, polymerization light was not transmitted. When a display device was manufactured using this in the same manner as in Reference Example 4, the polymer precursor was not polymerized in the liquid crystal, and light was not scattered even when an electric field was applied, and display could not be performed.

Reference Example 5 In this reference example, an example in which the present invention is applied to a case where a mixture of a liquid crystal and a polymer precursor is phase-separated in an isotropic phase is shown. Basically, it is the same as in Reference Example 1, but the mixture of the liquid crystal and the polymer precursor enclosed in the empty panel is different. Further, the substrate surface is not subjected to orientation treatment.

As the liquid crystal, RDP21111 (manufactured by Rodick) was used. Next, 69% by weight of this liquid crystal and 30% by weight of a polymer precursor M6200 (manufactured by Toagosei Chemical Industry Co., Ltd.) are mixed, and further 1% by weight of Irgacure 184 as a polymerization initiator is mixed and sealed in the above empty panel. Polymerization light (intensity 30 mW / cm 2) was irradiated in the isotropic phase. Thereafter, the display device was completed in the same manner as in Reference Example 1. As a result, the same color display as in Reference Example 1 was possible. However, the mode of this reference example is different from the previous reference example in that dark display is performed by applying a voltage and color display is performed by not applying a voltage.

In this reference example, an example using a gel network type material was shown in reference example 1, but it can be similarly applied to reference examples 2, 3 and 2.

As the polymer precursor used here, in addition to the materials shown here, a material having a relatively long molecular length and a flexible skeleton can be used. Further, a polymerizing group such as methacrylic acid, acrylic acid and epoxy, and alkyl, phenyl, biphenyl and the like can be contained in the side chain or the main chain. For example, Aronix and Reseda macromonomer manufactured by Toagosei Co., Ltd., KAYARAD and KAYAMER manufactured by Nippon Kayaku Co., Nopcomer manufactured by San Nopco, S
ICOMET and Photomer, EPOTOTE, NEOTOTE, TOPREN and DAPTOTE manufactured by Tohto Kasei Co., Epicoat manufactured by Yuka Shell Co., Adeka Resin, Adeka Optimer and Adeka Opton manufactured by Asahi Denka Co., 2200 series manufactured by ThreeBond Co., Ltd., Showa Polymer Co., Ltd. Lipoxy and Spyrac, products of Nippon Polyurethane, and the like can be used.

For the other members and conditions, the members and conditions shown in Reference Example 1 can be used.

Comparative Example 3 When a phthalocyanine pigment was used as a color filter dye instead of the color filter material of Reference Example 5, polymerization light was not transmitted. When a display device was produced using this in the same manner as in Reference Example 5, the polymer precursor was not polymerized in the liquid crystal, and light was not scattered even when an electric field was applied, and display could not be performed.

(Example 1) Here, an example is shown in which a reflective layer is formed using a multilayer film that transmits light capable of polymerizing a polymer precursor (here, polymerization light). FIG. 3 shows a simple cross section of the liquid crystal display device of this embodiment. It will be described with reference to FIG. First, a multilayer reflective layer was formed on the substrate 8. Specifically, the refractive index of the glass substrate 8 is 1.5
2. High refractive index layer Titanium dioxide (abbreviated as H layer, refractive index 2.
4), low refractive index layer magnesium difluoride (abbreviated as L layer,
If the refractive index is 1.38, and the reflection center wavelength is 550 nm, the H layer has a thickness of 57 nm, and the L layer has a thickness of 10 nm.
The film was formed at 0 nm. In the same manner, HLHLHLHLH and film were alternately formed. The multilayer reflective layer thus prepared has a thickness of 70
It shows a reflectance of 90% or more from 0 nm to 400 nm.
It showed a transmittance of 90% or more for light from 00 nm to 300 nm.

On the multilayer reflective layer thus produced, an MIM element group was formed as an active element, and a transparent pixel electrode 7 was further formed. Next, a conventional color filter 5 that does not transmit red, blue, and green polymerized light was formed on the opposing substrate 1, and a transparent electrode group 2 was further formed thereon. The two substrates thus prepared were bonded at their peripheries with the electrode surface inside and a gap for enclosing the liquid crystal.

92.5% by weight of TL213 (made by Merck) as a liquid crystal, 0.5% by weight of a chiral agent R1011 (made by Merck) and 7% by weight of biphenyl methacrylate as a polymer precursor were mixed in this gap. Enclose things,
Light of 300 nm to 400 nm in the liquid crystal phase was irradiated from the substrate side on which the reflective layer was formed. In this way, the polymer precursor was polymerized to precipitate the polymer from the liquid crystal. Next, a non-glare / anti-reflection film is attached to the surface of the substrate 1, and a driver for driving is attached to the pixel electrode group and the signal electrode group of the active element,
A controller and a computer were connected to display.

The brightness was measured by setting the incident direction of light to 20 degrees from the panel normal direction and measuring the brightness in the normal direction.
It was 40% with respect to the copy paper. The contrast was 6: 1. The color vividness is as shown in Table 1 in the XYZ color system.

[0048]

[Table 1]

By the way, in the conventional product, both the color filter and the reflection layer which hardly transmit the polymerization light are used, and the polymerization light is irradiated from the substrate side on which the color filter is formed, and the polymer precursor does not polymerize, It did not become a display device.

The number of times the multilayer film is laminated is not limited to the number shown here, and may be further increased. However, if the number of times of lamination is reduced, the reflectance decreases.

The material of the multilayer film is not limited to those shown here, and any material having a large difference in refractive index can be used. For example, ZrO having a large refractive index
2 (n = 2.1), ZnS (2.32), and other materials having a small refractive index include CeF3 (1.63) and Al2O.
3 (n = 1.62), SiO2 (n = 1.46), etc. can be used.

As for the active element, M shown here is used.
In addition to the IM element, the element shown in Reference Example 1 can also be used.

As the polymer precursor material, a material having a gel network structure as shown in Reference Example 4 or a material having a polymer as a particle as shown in Reference Example 1 can be used. Polymer precursors other than these can also be used, but when the ratio of the polymer precursor to the liquid crystal is high, the structure can be such that liquid crystal droplets are oriented and dispersed in the polymer matrix.

For the liquid crystal, the materials shown above can be used.

Example 2 In this example, the case where the liquid crystal / polymer precursor mixture in Example 1 is irradiated with polymerization light in an isotropic phase will be described.
Same as Example 1 except liquid crystal / polymer precursor sealed between two substrates. As the liquid crystal / polymer precursor used here, the material shown in Reference Example 5 was used. The liquid crystal / polymer precursor mixture was enclosed in the empty panel prepared in Example 1 and irradiated with polymerization light in the isotropic phase to separate the liquid crystal and the polymer.

Similar to the first embodiment, wiring is applied to the reflection type color display device of the present embodiment and the display color is changed by a computer.
The brightness, contrast and XY values in the XYZ color system were measured. The brightness is 30% for copy paper, the contrast is 5: 1, and the XY values are as shown in Table 2.

[0057]

[Table 2]

Incidentally, in the conventional example, an aluminum electrode which does not transmit polymerized light is used as the reflective layer in the present example,
As a color filter, a pigment-based material that hardly transmits polymerization light is used, and when the polymerization light is irradiated from the color filter side, the polymer precursor does not polymerize even when the polymerization light is irradiated, and the display device is used. It didn't happen.

As the liquid crystal material and polymer precursor to be used, those shown in Reference Example 5 and the like can be used.
As for the conditions, Reference Example 5 can be used.

The first embodiment can be used for the members around the panel and the manufacturing conditions.

Although the embodiments have been described above, the multilayer film is used as the visible light reflection layer which transmits the polymerization light (here, the polymerization light), but other visible light reflection layers which transmit the polymerization light may be used similarly. You can

Reference Example 6 In this Reference Example, an example in which the ultraviolet ray blocking layer in Reference Example 1 is arranged on the display surface of the display device is shown. When a film that absorbs light having a wavelength shorter than 420 nm was attached to the surface of the reflection type color display device manufactured in Reference Example 1, fluorescence from the color filter seen in Reference Example 1 disappeared and no electric field was applied. The reflectance in the black display state is reduced (6% to 3% when entering from a direction normal to the panel at 20 degrees in a dark room).
%), And the contrast improved. When a light resistance test was conducted at the same time, a xenon lamp (pseudo sunlight)
The charge retention of the liquid crystal / polymer layer after irradiation with 20000 La was 90% before the test (it was reduced to 30% without the provision of the ultraviolet blocking layer).

The UV cut wavelength may be selected according to the application and need not be 420 nm. Also, the transmittance in the ultraviolet region is preferably 50% or less, more preferably 10% or less. The effect cannot be expected if it is 50% or more. If the UV cut layer also serves as the non-glare / anti-reflection layer described above, the manufacturing cost can be reduced and the size can be reduced.

This reference example can be applied to all other reference examples and examples.

Reference Example 7 In this Reference Example, an example in which the black mask is formed by overlapping the color filters of the respective colors in the inter-pixel portion in Reference Example 1 will be shown. Refer to Example 1 for the method of forming the color filter.
The same as above, one color was applied and then cured to apply the next color.
However, the mask used for patterning the color filter was improved so that light would be emitted between the pixels. As a result, all the color filters were formed between the pixels, and as a result, the black mask was formed between the pixels. A display device was completed in the same manner as in Reference Example 1 except for the above.

When the reflectance when no electric field was applied was measured,
It was 6% in Reference Example 1, but decreased to 5% in this Reference Example.

This reference example can be applied to all other reference examples and examples.

[0067]

As described above, according to the present invention, a step of enclosing a liquid crystal and a polymer precursor between a substrate provided with a color filter and a substrate provided with a plurality of films having different refractive indexes, The polymer precursor is polymerized by irradiating light from the side of the substrate on which the plurality of films are formed. Therefore, the polymer precursor can be polymerized even when a color filter that does not transmit polymerization light or absorbs polymerization light is provided.

[Brief description of drawings]

FIG. 1 is a diagram showing a partial cross section of a reflective color display device of Reference Example 1.

FIG. 2 is a diagram showing a partial cross section of a reflective color display device of Reference Example 2;

3 is a diagram showing a partial cross section of the liquid crystal display device of Example 1. FIG.

[Explanation of symbols]

1 substrate 2 electrodes 3 Liquid crystal / polymer layer 5 color filters 6 transparent electrodes 7 Reflective electrode 8 substrates 9 Multilayer reflective layer 10 Polymerization light transmission color filter 11 Non-glare and anti-reflection layer 12 Insulation layer 13 signal electrode 14 Source electrode 15 Gate electrode 16 Semiconductor layer 17 Drain electrode 18 Gate insulation layer

─────────────────────────────────────────────────── --- Continuation of the front page (72) Masayuki Yazaki, Masayuki Yazaki, 3-3-5 Yamato, Suwa, Nagano Seiko Epson Co., Ltd. (72) Hidehito Iizaka 3-3.5, Yamato, Suwa, Nagano Prefecture Sei In Co-Epson Co., Ltd. (72) Inventor Toyohyo Toyo 3-3-5 Yamato, Suwa City, Seiko Seiko Epson Co., Ltd. (56) Reference JP-A-5-249458 (JP, A) JP-A-6- 27450 (JP, A) (58) Fields surveyed (Int.Cl. ⁷ , DB name) G02F 1/1334 G02F 1/1335

Claims (4)

(57) [Claims] 1. A step of encapsulating a liquid crystal and a polymer precursor between a substrate on which a color filter is formed and a substrate on which a reflective layer composed of a plurality of films having different refractive indexes is formed, and the reflective layer. The step of irradiating polymerization light from the side of the substrate on which the polymer is formed to polymerize the polymer precursor, wherein the reflective layer transmits the polymerization light. Method. 2. The method for manufacturing a liquid crystal display device according to claim 1, wherein the polymerization light has a wavelength of 300 nm to 400 nm. 3. The method of manufacturing a liquid crystal display device according to claim 1, wherein the reflective film reflects light in a wavelength range of 700 nm to 400 nm. 4. The method for manufacturing a liquid crystal display device according to claim 1, wherein the plurality of films are a film selected from titanium dioxide, ZrO ₂ and ZnS, and difluoride. Magnesium, CeF ₃ , Al ₂ O ₃ and Si
A method of manufacturing a liquid crystal display device, comprising: a film selected from O ₂ .