JP4363973B2 - Liquid crystal display device and manufacturing method thereof - Google Patents

Description

  The present invention relates to a transflective liquid crystal display device that can be used in a transmissive mode and a reflective mode, and a manufacturing method thereof.

  A transflective liquid crystal display device that is used in a reflective mode using outside light in a bright place and used in a transmissive mode using a backlight in a dark place is particularly widely used as a display device for portable electronic devices. . For example, Japanese Patent Application Laid-Open No. 10-282488 “Liquid Crystal Display Device” proposes a liquid crystal display device in which a light transmitting hole is provided in a reflective film of a reflective liquid crystal display device and a backlight is provided behind the reflective film. ing. In this device, when using in the reflection mode, the external light is reflected by the reflection film provided behind the liquid crystal layer for display, and when using in the transmission mode, the light from the backlight is provided on the reflection film. Displayed from the open hole to the liquid crystal cell.

  However, the apparatus disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 10-282488 has a problem that color reproducibility differs in color display when used in the reflection mode and when used in the transmission mode. ing. This is due to the following reason. That is, when used in the reflection mode, the external light that has passed through the liquid crystal layer and the color filter is reflected by the reflective film provided on the back surface of the color filter, passes through the color filter and the liquid crystal cell again, and exits outside the cell. Observed by the user. Therefore, incident light is emitted twice after passing through the color filter, and the light transmittance through the color filter is lowered, and as a result, the brightness at the time of display is lowered. However, by passing through the color filter twice, the degree of coloration of light increases. On the other hand, when used in the transmissive mode, the light emitted from the backlight provided behind the cell passes through the hole provided in the reflective film, passes through the color filter and the liquid crystal cell, and goes out of the cell. The light passes through the color filter only once. For this reason, the brightness of the display does not decrease, but the degree of coloration of light decreases. As described above, since the color reproducibility differs between the transmission mode and the reflection mode, if the optical density of the color filter is optimized for either the transmission mode or the reflection mode, the display in the other mode is optimized. The problem of disappearing arises.

  In order to solve the above-mentioned drawbacks of the liquid crystal display device as disclosed in JP-A-10-282488, JP-A-2000-298271 “Liquid Crystal Display Element and Method for Producing the Same”, JP-A-2001-33778 “Liquid Crystal Display Device and the Method for Producing the Same” In addition, “electronic devices” have been proposed. In these liquid crystal display devices, the color reproducibility in the transmission mode and the reflection mode can be improved by making the thickness of the color filter on the reflection plate different from the thickness of the color filter provided on the opening of the reflection plate. Try to match. For example, by setting the thickness of the color filter on the opening of the reflecting plate to be twice the thickness of the color filter on the reflecting plate, the distance through which light passes through the color filter is made equal in the transmission mode and the reflection mode. As a result, the color reproducibility can be made the same when displaying in both modes.

  However, in the above apparatus, in order to change the thickness of the color filter between the reflection plate and the opening, the reflection plate is made thick as a two-layer structure of a resin layer and a reflection layer, and the color filter is formed over two layers. There is a need to. In order to form a two-layer color filter, in the case of a three-color filter, six exposure and development processes are required, which complicates the manufacturing process and increases the manufacturing cost of the liquid crystal display device itself. To do.

JP-A-10-282488 JP 2000-298271 A JP 2001-33778 A

  Accordingly, an object of the present invention is to provide a transflective liquid crystal display device having a novel structure that does not require a complicated manufacturing process and can have the same color reproducibility in display in the reflection mode and the transmission mode. And a method of manufacturing the same.

According to the method of the present invention, the liquid crystal display device forms a reflective film having a plurality of openings and a first color filter in this order on the second transparent substrate, and the reflection of the second transparent substrate. A color photosensitive material is applied to the surface opposite to the surface on which the film is formed, and the color photosensitive material is applied to the color photosensitive material from above the first color filter through the opening of the reflective film and the second transparent substrate. The material is colored by irradiating light to form a second color filter, and the first transparent substrate is disposed opposite to the surface of the second transparent substrate on which the first color filter is formed. In addition, the liquid crystal is encapsulated between the first and second transparent substrates.

  According to the manufacturing method, the second color filter includes a color photosensitive material applied on the opposite side of the second transparent substrate to the liquid crystal, and the first color filter using the reflective film as an exposure mask. It is formed by exposure and coloring with light passing through the color filter. As a result, since the number of times of coloring required for the second color filter in the past is only one for the second color filter, the manufacturing process is greatly simplified and the manufacturing cost of the apparatus is reduced.

According to the method of the present invention, the liquid crystal display device forms a reflective film having a plurality of openings and a first color filter in this order on the second transparent substrate, A first transparent substrate is disposed above the surface on which the reflective film and the first color filter are formed, with a sealant interposed therebetween, and the surface of the second transparent substrate on which the first color filter is formed. A color photosensitive material is applied on the surface on the opposite side, and the color photosensitive material is formed from above the first transparent substrate through the first color filter, the opening provided in the reflective film, and the second transparent substrate. It is manufactured by performing each step of forming a second color filter by irradiating a light-emitting material with light to form a second color filter and encapsulating liquid crystal between the first and second transparent substrates. .

  According to the above manufacturing method, the liquid crystal cell is formed by the first and second transparent substrates, and then the step of forming the second color filter is performed. Therefore, in forming the second color filter, the liquid crystal injection surface As a result, the liquid crystal cell can be easily handled.

According to the method of the present invention, the liquid crystal display device forms a reflective film having a plurality of openings and a first color filter in this order on the second transparent substrate, A first transparent substrate is disposed above the surface on which the reflective film and the first color filter are formed with a sealant interposed therebetween, and liquid crystal is sealed between the first and second transparent substrates, and the second A color photosensitive material is applied on the surface of the transparent substrate opposite to the liquid crystal side, and the liquid crystal, the first color filter, the opening provided in the reflective film, and the first are formed on the first transparent substrate. The color photosensitive material is irradiated with light through two transparent substrates to color the material to form a second color filter.

  According to the above manufacturing method, the liquid crystal cell is constituted by the first and second transparent substrates, and after the liquid crystal is sealed in the cell, the step of forming the second color filter using the photosensitive emulsion is executed. As a result, contamination of dust and the like generated during exposure and development of the photosensitive emulsion is prevented in the liquid crystal, and a highly reliable liquid crystal display device can be obtained.

  Note that the first color filter is formed by any one of a photolithography method, a printing method, an electrodeposition method, and an ink jet method. The color photosensitive material is a photosensitive emulsion, and the step of forming the second color filter includes a step of developing the exposed photosensitive emulsion. This photosensitive emulsion is, for example, a silver chloride emulsion. Since a silver chloride emulsion is weak against ultraviolet rays (UV), it is preferable to use a polarizing plate with UV cut as a polarizing plate.

  The color of the color filter may be three colors of R, G, and B, or may be three colors of cyan, magenta, and yellow. Furthermore, other color combinations may be used. The reflective film can be formed of aluminum, silver, or an alloy film containing a metal thereof, and an opening is provided at a position corresponding to each color portion of the color filter.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view of a main part of a transflective liquid crystal display device according to a first embodiment of the present invention. The illustrated embodiment is an STN type liquid crystal display device, wherein 1 and 2 are transparent substrates such as glass, and constitute an upper substrate and a lower substrate of a liquid crystal cell. 3 is a signal electrode formed on the liquid crystal layer side of the upper substrate 1, and 4 is a common electrode formed on the lower substrate 2. These are usually composed of transparent electrodes. A reflective film and a first color filter, which will be described later, are provided between the lower substrate 2 and the common electrode 4. Reference numerals 5 and 6 are alignment films, and 7 is a liquid crystal layer. A phase difference plate 8 and a polarizing plate 9 are provided on the side of the upper substrate 1 opposite to the liquid crystal layer 7, and similarly, a phase difference plate 10 and a polarizing plate 11 are also provided on the lower substrate 2 side. Reference numeral 12 denotes a backlight device. On the lower substrate 2 on the liquid crystal layer 7 side, a reflective film 13 that is a deposited film of aluminum or the like and a first color filter 15 are formed. The color filter 15 is configured by a plurality of repetitions of three color dots of R, G, and B. The reflective film 13 has an opening (hole) 16 at a position corresponding to the central portion of each dot of the color filter 15. Reference numeral 17 denotes a flattening film formed on the first color filter 15 and is provided to flatten the upper surface of the color filter 15.

  In the present apparatus, a second color filter 18 is further provided on the backlight side of the lower substrate 2. As will be described later, the second color filter 18 is formed from a photosensitive emulsion layer coated on the lower substrate 2 from the first color filter 15 side using the reflective film 13 having the openings 16 as a mask. It is formed by exposure and development by irradiating light.

  In forming the first color filter 15, the optical density of the color filter is optimized by the color filter 15 alone so that the color reproducibility of the display in the reflection mode is appropriate. The optical density of the second color filter 18 is optimized so as to be approximately the same optical density as that of the first color filter 15. As a result, the transmittance of the light that has passed through the second color filter 18 and the first color filter 15 becomes the same as the transmittance of the light that is reflected by the first color filter 18 and emitted to the user side. And the color reproducibility in the reflection mode can be made the same.

  The opening 16 formed in the reflective film 13 is not necessarily formed at the center of one dot (corresponding to one pixel of the liquid crystal display device) of the color filter, and may be shifted from the center. Moreover, it is not necessary to have one opening per dot, and a plurality of openings may be formed. In many cases, the total area of the opening portion of 1 dot, the ratio of the area of the portion that is not the opening portion, and the opening portion / dot (pixel) are 30% to 60%.

  Further, an insulating film is provided between at least one of the upper substrate 1 and the alignment film 5 or between the lower substrate 2 and the alignment film 6, and the transparent electrode of the upper substrate 1 and the transparent electrode of the lower substrate 2 are short-circuited by dust or the like. It may be prevented. The configuration of the retardation plates 8 and 10 and the polarizing plates 9 and 11 and the material of the liquid crystal layer 7 are not particularly described here because they may be general ones constituting, for example, an STN liquid crystal display device.

  FIG. 2 is a diagram showing a process for forming the first and second color filters 15 and 18 on the lower substrate 2 in accordance with the method of the present invention. First, the reflective film 13 is formed on the upper surface of the lower substrate 2 shown in FIG. 2A as shown in FIG. Next, a plurality of openings 16 are formed in the reflective film 13 as shown in FIG. The opening 16 is provided at a position corresponding to each color region of a second color filter to be formed later. Thereafter, as shown in FIG. 4D, a first color filter 15 is formed on the reflective film 13. The color filter 15 may be formed by any manufacturing process, an example of which is shown in FIG.

  An example of a method for manufacturing the first color filter 15 will be described with reference to FIGS. In FIGS. 3A to 3F, for simplification of description, 2 ′ indicates a lower substrate at the stage shown in FIG. 2D, and accordingly, the substrate 2 ′ is not illustrated. It is assumed that the reflective film 13 having the openings 16 is formed. First, a layer 150 of a color filter raw material to be developed and patterned later is formed on the substrate 2 'of FIG. This layer 150 contains a pigment or dye that produces a color such as red. Next, as shown in FIG. 3C, an exposure mask 152 is placed on the layer 150, and the layer 150 is exposed to perform colorization patterning. Then, after removing the exposure mask 152 as shown in FIG. 4D, development or the like is performed to remove an unnecessary portion of the layer 150, and as shown in FIG. (R) part) is formed. Thereafter, a base layer containing pigments or dyes of other colors is formed on the lower substrate 2 ′, and exposure and development are performed in the same manner as in the above process to form other color portions of the color filter. By repeating this process once more, a color filter 15 in which a large number of red (R), green (G), and blue (B) color dots are formed is formed as shown in FIG.

  FIG. 2D shows a state in which the first color filter 15 is formed on the lower substrate 2 as described above. In terms of the structural numerical values of the color filter 15 and the reflecting plate 13, for example, the pixel is formed with a diameter of about 180 μm × 60 μm and the opening 16 is formed with a diameter of about 40 μm. The first color filter 15 has a thickness of about 0.8 μm. The reflective film 13 is made of aluminum by vapor deposition and has a thickness of about 0.15 μm. However, the reflective film 13 may be made of another material or a resin film disposed below the reflective film. The thickness may be about 8 μm. As described above, the ratio of the total area A of the one-dot opening and the area B of the non-opening portion, the opening (A) / dot (pixel) (A + B) is in the range of 30 to 60%. There are often.

  Next, a process of forming the second color filter 18 is shown. As shown in FIG. 2E, the lower substrate 2 is turned upside down and a silver halide emulsion is coated on the upper surface thereof by a spinner method, a squeegee method, a printing method or the like to form a photosensitive emulsion layer 18 '. To do. Thereafter, as shown in FIG. 2 (f), the photosensitive emulsion layer 18 'is exposed using a white light source. The light from the white light source passes through the first color filter 15 and opens the reflection film 13. The layer passes through the portion 16 and hits the photosensitive emulsion layer 18 'to be exposed. Thereafter, by developing the photosensitive emulsion layer, the portion corresponding to the opening 16 is colored with the color arrangement pattern of the first color filter, and the photosensitive emulsion layer functions as the second color filter. As a light source for exposure, a light source other than a white light source may be used. For example, R, G, and B may be separate light sources, and a light source or a three-wavelength fluorescent tube in which R, G, and B are simultaneously turned on may be used.

  As described above, by using the reflective film 13 as a light-shielding mask (exposure mask) and further exposing the photosensitive emulsion 18 ′ with light that has passed through the first color filter 15, in one exposure and development process, A second color filter 18 having a three-color pattern is formed. Therefore, the manufacturing process of the second color filter 18 is greatly simplified as compared with the first color filter forming method. In addition, since the reflective film 13 exists between the adjacent openings 16, a part of the photosensitive emulsion 18 ′ below the reflective film 13 may not be exposed and exposed to light. Even when a portion with insufficient photosensitivity occurs, this portion is covered with the reflective film 13 when the user looks at the liquid crystal display device, so that appearance and display quality are not deteriorated.

  As described above, when the lower substrate 2 having the two-layer color filter shown in FIG. 2F is formed, after the planarizing film 17 is formed on the color filter 15, it is commonly used in a normal method. An electrode and an alignment film 6 are formed. The lower substrate 2 in this state and the upper substrate 1 on which a signal electrode and an alignment film are separately formed are arranged so as to face each other so that each electrode forms a pixel, and further bonded together via a frame-shaped sealing material, A liquid crystal cell is constructed. Next, liquid crystal is sealed in the cell, and each retardation plate, each polarizing plate, and a backlight device are appropriately provided, whereby the liquid crystal display device having the structure shown in FIG. 1 can be obtained.

  FIG. 4 is a diagram for explaining another manufacturing method of the second color filter 18. In this manufacturing method, after the reflective film having holes and the first color filter 15 are formed on the lower substrate 2, electrodes and an alignment film are appropriately provided, and in this state, the upper substrate 1 provided with the electrodes and the alignment film is laminated. Configure the liquid crystal panel. After the liquid crystal is sealed in the liquid crystal panel or before the liquid crystal panel is sealed, the second color filter 18 is formed behind the lower substrate 2. That is, a photosensitive emulsion layer 18 ′ is formed behind the lower substrate 2, and then light is incident on the panel from the upper substrate 1 side, and the photosensitive emulsion layer 18 ′ is formed through the first color filter 15 and the opening 16. Exposure. As a result, the photosensitive emulsion layer 18 ′ is exposed to the same color pattern as that of the first color filter 15 to form the second color filter 18. When the second color filter 18 is formed as described above, the liquid crystal display device shown in FIG. 1 is completed by appropriately providing each retardation plate, each polarizing plate, and a backlight device.

  According to the method for manufacturing the liquid crystal display device shown in FIG. 4, the work of forming the second color filter 18 can be performed after the upper substrate 1 and the lower substrate 2 are bonded together. Therefore, unlike the embodiment shown in FIG. 2, handling of the substrate 2 when forming the second color filter is facilitated. Furthermore, if the steps such as coating of the photosensitive emulsion, exposure, and development are performed after the liquid crystal is sealed in the cell, the problem of dust and the like entering the liquid crystal cell during the production of the second color filter is extremely reduced. Deterioration in image quality due to dust can be prevented, and even if an insulating film is not provided, the probability of short-circuiting between electrodes due to dust between upper and lower substrates is reduced, and the reliability of the liquid crystal display device is improved.

  5 (a) to 5 (c) are diagrams showing another method for manufacturing the liquid crystal display device of the present invention shown in FIG. This manufacturing method is characterized in that the second color filter is formed for a large number of liquid crystal cells at the same time without contaminating the liquid crystal cell before the liquid crystal is sealed. Hereinafter, this embodiment will be described with reference to FIGS.

  FIG. 5A shows a state in which a plurality of cells corresponding to one liquid crystal device are formed on a large substrate. 5A, the two large substrates constituting the upper substrate 1 and the lower substrate 2 of FIG. 1 are bonded by the first sealing material 110 and the second sealing material 120 to form the large cell 101. In FIG. Indicates the state. In this state, liquid crystal is not injected into one cell 200 surrounded by the second sealing material 120. The seal is a double seal, and the cell 200 forms the cell space 130 by opening the inlet 125 and disposing the second sealant 120. The plurality of cells 200 are covered and surrounded by the first sealing material 110, and a passage is formed between the inside and outside of the first sealing material 110 so that air can escape, and the inside and outside of the substrate communicate with each other. Openings 121 are provided on the outer side and the inner side of the first sealing material 110 in order to make this communication passage. The first sealing material 110 needs to be provided with a position where the first sealing materials 110 are arranged in parallel. The function of the first sealing material 110 arranged in parallel with the opening 121 will be described. In order to form the large cell 101, a large plate-like upper substrate and lower substrate are thermocompression-bonded with a first sealing material 110 and a second sealing material 120, and the gap is sealed at this time. In this state, the air at the center (inside) of the large cell substrate 101 does not escape to the outside, so that the substrate 101 is destroyed due to expansion of the internal air when thermocompression bonding is performed. An opening 121 is provided for the purpose of preventing this. On the other hand, the seal portion 122 and the seal portion 124, which are the first seal materials 110 arranged in parallel, are provided for the purpose of preventing the liquid agent from entering the cell 200 in the post-process after the seal adhesion and in the wet development. It is done.

  FIG. 5B shows a strip-shaped substrate obtained by cutting the large plate state cell 101 along a transverse cut surface X (X1, X2, X3, X4). In this strip-shaped substrate, a plurality of cells are arranged in the horizontal direction. In this state, since the injection ports 125 of all the cells are opened in one direction, the vacuum injection method is used. Thus, the liquid crystal can be injected into all the cells at once. FIG. 5C shows a state in which a single liquid crystal cell 200 is obtained by cutting the substrate in the strip state along a longitudinal cutting line Y (Y1, Y2, Y3, Y4).

  Below, each manufacturing process in FIG. 5 is demonstrated. In the state of FIG. 5 (a), the steps (a) to (d) shown in FIG. 2 have been completed for each cell 200, and electrodes and alignment films are disposed on the upper and lower substrates. The substrate is bonded by a sealing material. Thereafter, although not shown, a photosensitive emulsion layer is applied to the back surface of the large substrate 101, and the photosensitive emulsion layer is exposed by the exposure method shown in FIG. At this time, no liquid crystal is injected into the cell space 130 yet. Thereafter, a wet development process is performed on the large substrate 101. At this time, the first sealing material 110 previously provided using the same sealing material as that of the second sealing material 120 works effectively so that the developer does not enter the space 130 from the inlet 125. Intrusion of the developer into 200 is prevented. The first sealing material 110 may have any appropriate shape as long as it prevents the developer from entering. In FIG. 5 (a), the first sealing material is arranged in one round + 1/4 round. This may be 1 round + 2/4 round, 1 round + 3/4 round, 2 rounds.

  As described above, the second color filter is collectively formed on all the cells 200 of the large-sized substrate 101 by one formation of the photosensitive emulsion layer, exposure, and development. Thereafter, the substrate 101 on which the development process is finished and the second color filter 18 (see FIG. 1) is formed is cut along the horizontal cutting lines X1 to X4. At this time, the injection port 125 is in a state of opening the cut surface of the cutting lines X2, 3, and 4. By this cutting, the substrate on the strip shown in FIG. 5B is obtained. In this state, the plurality of inlets 125 of the plurality of cells are brought into contact with the liquid crystal material, and liquid crystal is injected into the space 130 by controlling the vacuum and the atmospheric pressure. After the liquid crystal is injected, the inlet is sealed with a sealing material made of a resin material. Thereafter, the strip-shaped cells are cut along the vertical cutting lines Y1 to Y4 shown in FIG. 5B to obtain one liquid crystal cell 200 shown in FIG. A phase difference plate, a deflection plate, and a backlight are appropriately attached to the cell 200 to obtain a transflective liquid crystal display device.

  FIG. 6 shows the structure of a liquid crystal display device according to another embodiment of the present invention. Unlike the apparatus shown in FIG. 1, this apparatus is characterized in that a first color filter 15 ′ is provided on the liquid crystal side of the upper substrate 1. Here, 17 'is a flattening film for flattening the surface of the color filter 15'. In this apparatus, a reflective film 13 is formed on the surface of the lower substrate 2 on the liquid crystal side, and a photosensitive emulsion layer to be the second color filter 18 is formed on the surface of the lower substrate 2 opposite to the liquid crystal side, Thereafter, the second color filter 18 is formed by irradiating light from above the first color filter 15 ′ using the reflective film 13 having the opening 16 as an exposure mask.

  Note that the retardation plate, polarizing plate, planarizing film, backlight, and the like described in each of the above-described embodiments are not necessarily constituent members for configuring the liquid crystal display device of the present invention, but the purpose of the device, It can be omitted as appropriate based on design specifications and the like. The signal electrode and the common electrode may also be provided on opposite substrates, unlike the illustrated example. Moreover, although each said embodiment showed the passive type liquid crystal display device as an example, it is needless to say that it may be an active type (TFT, MIM, TDF) device. When the liquid crystal display device is a TFT type, only one retardation plate is required.

  Moreover, in each embodiment mentioned above, although the cross section of one liquid crystal cell was described, the multi-surface attachment by which many liquid crystal cells are formed in a pair of transparent substrate may be sufficient.

  As described above, as described in various embodiments, in the apparatus of the present invention, it is easy to make the color reproducibility during display the same for the reflection mode and the transmission mode. Therefore, a transflective liquid crystal display device with high display quality can be obtained. In addition, when the photosensitive emulsion for forming the second color filter is exposed, patterning exposure is performed using the reflective film or reflective layer provided with the opening as a light shielding mask. The forming process can be greatly simplified as compared with the prior art. In particular, since there is no need to replace the exposure mask or perform etching during patterning, patterning can be performed in a short time, and work efficiency can be improved. As a result, a liquid crystal display device with high reliability and low cost can be obtained.

1 is a cross-sectional view of main parts of a liquid crystal display device according to a first embodiment of the present invention. The figure which shows each manufacturing process of the apparatus shown in FIG. The figure which shows each manufacturing process of a 1st color filter. The figure which shows one manufacturing process of the apparatus shown in FIG. The figure which shows each manufacturing process for manufacturing simultaneously a several liquid crystal display device according to the manufacturing method of the liquid crystal display device of this invention. The figure which shows the principal part cross section of the liquid crystal display device concerning other embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Upper substrate 2 ... Lower substrate 3 ... Signal electrode 4 ... Common electrode 5, 6 ... Alignment film 7 ... Liquid crystal layer 8 ... Phase difference plate 9 ... Polarizing plate 10 ... Phase difference plate 11 ... Polarizing plate 12 ... Backlight apparatus 13 ... reflector 15 ... first color filter 16 ... opening 18 ... second color filter

Claims (5)

Forming a reflective film having a plurality of openings and a first color filter in this order on the second transparent substrate;
A color photosensitive material is applied to the surface of the second transparent substrate opposite to the surface on which the reflective film is formed,
By irradiating light to the color photosensitive material from above the first color filter through the opening of the reflective film and the second transparent substrate , the material is colored to form a second color filter. ,
Each step of disposing a first transparent substrate facing the surface of the second transparent substrate on which the first color filter is formed, and further enclosing a liquid crystal between the first and second transparent substrates; A method for manufacturing a liquid crystal display device. Forming a reflective film having a plurality of openings and a first color filter in this order on the second transparent substrate;
The first transparent substrate is disposed opposite to the surface of the second transparent substrate on which the reflective film and the first color filter are formed via a sealing material,
Applying a color photosensitive material on the surface of the second transparent substrate opposite to the surface on which the first color filter is formed;
The color photosensitive material is colored by irradiating light to the color photosensitive material from above the first transparent substrate through the first color filter, the opening provided in the reflective film, and the second transparent substrate. To form a second color filter,
A method for manufacturing a liquid crystal display device, comprising each step of encapsulating liquid crystal between the first and second transparent substrates. Forming a reflective film having a plurality of openings and a first color filter in this order on the second transparent substrate;
The first transparent substrate is disposed opposite to the surface of the second transparent substrate on which the reflective film and the first color filter are formed via a sealing material,
Encapsulating liquid crystal between the first and second transparent substrates;
A color photosensitive material is applied on the surface of the second transparent substrate opposite to the liquid crystal side,
The color photosensitive material is irradiated with light from the first transparent substrate through the liquid crystal, the first color filter, the opening provided in the reflective film, and the second transparent substrate. A method for manufacturing a liquid crystal display device, including the steps of forming a second color filter by coloring the material. A method of manufacturing a liquid crystal display device according to any one of claims 1 to 3, wherein the first color filter, a photolithography method, a printing method, to form either in the electrodeposition method or ink jet method A method for manufacturing a liquid crystal display device. 4. The method of manufacturing a liquid crystal display device according to claim 1 , wherein the color photosensitive material is a photosensitive emulsion, and the step of forming the second color filter includes exposing the exposed photosensitive material. 5. A method for producing a liquid crystal display device, comprising an emulsion development step.

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