JP2008139555A - Liquid crystal display device and manufacturing method thereof - Google Patents

Abstract

In a liquid crystal display device, uncured sealing material is suppressed and deterioration of display quality is suppressed.
A color filter substrate 20 and a TFT substrate 10 disposed opposite to each other, a liquid crystal layer 15 provided between the color filter substrate 20 and the TFT substrate 10, and a space between the color filter substrate 20 and the TFT substrate 10. The liquid crystal display device includes a UV curable sealing material 16 for sealing the liquid crystal layer 15 and a light shielding layer 21c provided on the color filter substrate 20 so as to overlap the sealing material 16. The light shielding layer 21c has an opening A that is opened to allow the UV light 1 from the color filter substrate 20 side to reach the sealing material 16, and the sealing material 16 includes a light shielding coloring material 16a. .
[Selection] Figure 4

Description

  The present invention relates to a liquid crystal display device and a manufacturing method thereof, and more particularly to a liquid crystal display device using a UV curable resin as a sealing material.

  Conventionally known liquid crystal display devices include a liquid crystal panel in which a pair of transparent substrates are joined by a sealing material, and a liquid crystal material is sealed between the substrates. In the liquid crystal display device, an active matrix driving type in which a thin film transistor (hereinafter referred to as “TFT”) or the like is provided as an active element for each pixel which is the minimum unit of an image is often used.

  In this active matrix liquid crystal display device, a TFT mother substrate on which TFTs and the like are formed and a color filter mother substrate on which color filter layers and the like are formed are formed in a frame shape for each liquid crystal panel forming portion (cell unit). It is manufactured by bonding through a provided sealing material, dividing the bonded substrate into each cell unit, and then injecting a liquid crystal material between the substrates constituting each cell unit by a vacuum injection method or the like.

  Here, as a method for injecting the liquid crystal material between the substrates, the above-described vacuum injection method has been put into practical use, but in recent years, the drop injection method has been adopted.

  In the dropping injection method, for example, a seal material is drawn in a frame shape on a color filter substrate, a liquid crystal material is dropped inside the seal material drawn in the frame shape, and then the color filter substrate and the TFT substrate are attached. Compared with the conventional vacuum injection method, the amount of liquid crystal material used can be greatly reduced, the time for injecting the liquid crystal material can be shortened, and the bonding of the substrate and the encapsulation of the liquid crystal material can be performed simultaneously. This has the advantage that the manufacturing cost can be reduced.

  By the way, in the dropping injection method, a UV curable sealing material that is cured by irradiation with UV light is generally used instead of a thermosetting sealing material that is cured by heating.

  Therefore, when irradiating the sealing material with UV light from the color filter substrate side, the UV light is blocked by the black matrix provided as a light shielding film on the color filter substrate, so that the sealing material is cured. Is difficult. Here, the black matrix is concealed (shielded) in a sealing material forming region for forming a sealing material so that light from the backlight does not leak and deteriorate display quality. Therefore, even if an attempt is made to irradiate the sealing material with UV light from the color filter substrate side, the UV light does not reach the sealing material by blocking the black matrix, and the curing of the sealing material hardly proceeds. It will be.

  In addition, when UV light is irradiated from the TFT substrate side to the sealing material, since a part of the UV light is blocked by the metal wiring provided on the TFT substrate, the sealing material is not sufficiently cured. There is a risk. Then, when the manufactured liquid crystal display device is put into, for example, a test device such as energization aging, an uncured component of the sealing material reacts with a component of the liquid crystal material or diffuses and dissolves in the liquid crystal material. As a result, display unevenness or the like may occur at the time of lighting display, and the display quality may be lowered.

  Therefore, Patent Document 1 discloses a display panel bonding apparatus including a mask to which a light reflecting member that reflects irradiated light so as to be incident obliquely on a sealing material. According to this, the light is obliquely applied to the seal material in the shadow portion of the light shielding portion such as the black matrix, so that the seal material in the shadow portion of the light shielding portion can be sufficiently cured. Has been.

Further, in Patent Document 2, the gap between the gate line and the data line corresponding to the metal wiring and the width of the gate line and the data line are optimized, and the reflection plate or the scattering plate is replaced with a UV light emitting lamp and a liquid crystal panel forming unit. Or a liquid crystal display device configured to irradiate the sealing material with UV light from various heights or angles by being disposed on the lower side or the side surface of the liquid crystal panel forming portion. An apparatus is disclosed. According to this, it is described that, among the sealing materials corresponding to the sealing portions, the degree of curing of the portion that is not directly irradiated with UV light is increased, so that contamination of the liquid crystal substance by the sealing materials can be prevented.
JP 2005-43700 A JP 2003-66486 A

  However, in the display panel bonding apparatus disclosed in Patent Document 1, since the drawing accuracy of the sealing material is inferior to the dimensional accuracy of the mask, it is expected that misalignment occurs between the mask and the liquid crystal to be processed. Is done. And in the said bonding apparatus, although the device which repeats reflection of light using the reflection of the work stage in which a to-be-processed object is mounted is made | formed, if the width | variety of a sealing material becomes wide, naturally light intensity will be carried out. There is a concern that curing will be poor at a position far from the irradiated part.

  Further, in the liquid crystal display device and the light irradiation device for liquid crystal display device disclosed in Patent Document 2, the electrical resistance is increased by controlling the width of the metal wiring, and the metal wiring is thinned. There is a concern that the possibility of the disconnection becomes high. Further, by controlling the interval between the metal wirings, the degree of freedom in designing the liquid crystal display device is also hindered. Furthermore, although the light irradiation device for a liquid crystal display device is effective when a single liquid crystal panel is manufactured, a large number of liquid crystal panels are simultaneously manufactured on a mother glass as in the case of manufacturing a liquid crystal panel for mobile use. In some cases, it is considered difficult to irradiate UV light from various directions.

  As described above, in the conventional techniques disclosed in Patent Documents 1 and 2 and the like, the sealing material is not completely cured, and the uncured portion of the sealing material comes into contact with the liquid crystal material. In this case, display unevenness occurs, and there is a concern about deterioration of display quality.

  The present invention has been made in view of the above points, and an object of the present invention is to suppress uncured sealing material and suppress deterioration of display quality in a liquid crystal display device.

  In order to achieve the above object, according to the present invention, the light-shielding layer provided so as to overlap with the photo-curing type sealing material has an opening that opens to allow the light to reach the overlapping sealing material. Is.

  Specifically, a liquid crystal display device according to the present invention includes a first substrate and a second substrate disposed to face each other, a liquid crystal layer provided between the first substrate and the second substrate, and the first substrate. And a sealing material provided between the second substrate and containing a photocurable resin for sealing the liquid crystal layer, and a light shielding layer provided on the first substrate so as to overlap the sealing material. In the liquid crystal display device, the light-shielding layer has an opening that is opened to allow the light from the first substrate side to reach the sealing material, and the sealing material includes a light-shielding coloring material. It is characterized by including.

  According to the above configuration, since the opening is provided in the light shielding layer, the light reaches the sealing material containing the photocurable resin through the opening of the light shielding layer. As a result, the photocuring of the sealing material becomes sufficient, and the uncured sealing material is suppressed, so that the deterioration of display quality due to the uncured portion of the sealing material contacting the liquid crystal material constituting the liquid crystal layer is suppressed. The Moreover, since the sealing material contains a light-shielding coloring material, the sealing material has a light-shielding property. For this reason, since a light-shielding sealing material is disposed in the opening of the light shielding layer, for example, deterioration of display quality due to leakage of light from the backlight from the opening of the light shielding layer is suppressed. Therefore, in the liquid crystal display device, the uncured sealing material is suppressed, and the deterioration of display quality is suppressed.

  The colorant may be a black pigment.

  According to said structure, since the sealing material contains the black pigment, a sealing material has light-shielding property concretely.

  The colorant may be a black dye.

  According to said structure, since a sealing material contains black dye, a sealing material has light-shielding property concretely.

  The colorant may be a black spherical body or a columnar body.

  According to said structure, since a sealing material contains a black spherical body or a columnar body, a sealing material has light-shielding property concretely.

  The colorant may be configured to define the thickness of the liquid crystal layer.

  According to said structure, a sealing material has light-shielding property concretely by making the spacer for prescribing | regulating the thickness of a liquid-crystal layer black.

  The sealing material may contain an ultraviolet curable resin.

  According to said structure, since a sealing material hardens | cures by irradiation of an ultraviolet-ray, the effect of this invention is show | played concretely.

  The sealing material may be provided in a frame shape so as to surround the liquid crystal layer.

  According to said structure, since a liquid-crystal layer is sealed with the sealing material provided in frame shape, the effect of this invention is show | played concretely.

  The first substrate may be a color filter substrate provided with a color filter layer.

  According to the above configuration, since the color filter substrate provided with the color filter layer including the black matrix is provided with the light shielding layer formed of the same material in the same layer as the black matrix, the effect of the present invention is achieved. Played specifically.

  The content of the coloring material in the sealing material may be 0.1% by weight to 10% by weight.

  According to said structure, since content of the coloring material in a sealing material is 0.1 weight%-10 weight%, the light-shielding property and sealing characteristic of a sealing material become favorable. Here, when the content of the coloring material in the sealing material is less than 0.1% by weight, the light shielding property of the sealing material is insufficient, for example, light from the backlight leaks from the opening of the light shielding layer. There is a concern about the deterioration of display quality due to. Further, when the content of the coloring material in the sealing material exceeds 10% by weight, the sealing property of the sealing material is insufficient, and the bonding strength of the first substrate and the second substrate is reduced, and the liquid crystal layer is configured. There are concerns about leakage of liquid crystal materials.

  The method for manufacturing a liquid crystal display device according to the present invention includes a first substrate manufacturing step of manufacturing a color filter layer and a first substrate having a light-shielding layer around the color filter layer, and facing the first substrate. The second substrate manufacturing step for manufacturing the second substrate to be disposed, the first substrate manufactured in the first substrate manufacturing step, and the second substrate manufactured in the second substrate manufacturing step are used as the light shielding layer. A bonding step for producing a bonded body by bonding through a sealing material containing a photocurable resin provided in a frame shape so as to overlap, and a sealing material in the bonded body manufactured in the bonding step And a photocuring step of curing the sealing material by irradiating light on the liquid crystal display device, wherein the sealing material contains a light-shielding coloring material, and in the first substrate manufacturing step, Above the shading layer In the bonded body produced in the bonding process, an opening for allowing light to reach the sealing material is formed, and in the photocuring process, the first substrate side with respect to the bonded body produced in the bonding process. It is characterized by irradiating light from.

  According to the above method, since the opening is formed in the light shielding layer in the first substrate manufacturing process, in the photocuring process, the sealing material containing the photocurable resin is passed through the opening of the light shielding layer. The light will reach. Therefore, in the photocuring process, the photocuring of the sealing material becomes sufficient and uncured of the sealing material is suppressed. Is suppressed. Moreover, since the sealing material includes a light-shielding coloring material, the sealing material has light-shielding properties. For this reason, since a light-shielding sealing material is disposed in the opening of the light shielding layer, for example, deterioration in display quality due to leakage of light from the backlight from the opening of the light shielding layer is suppressed. Therefore, in the liquid crystal display device, the uncured sealing material is suppressed, and the deterioration of display quality is suppressed.

  In the bonding step, a liquid crystal material may be supplied inside the sealing material.

  According to the above method, the liquid crystal material is sealed inside the sealing material simultaneously with the bonding of the first substrate and the second substrate via the frame-shaped sealing material. The effect is specifically demonstrated.

  In the first substrate manufacturing step and the second substrate manufacturing step, the first substrate and the second substrate may be manufactured by multi-cavity respectively.

  According to the above method, for example, in the method of manufacturing a liquid crystal display device for mobile use in which a large number of first substrates and second substrates are respectively formed on a pair of mother glasses, the effects of the present invention are specifically exhibited. .

  According to the present invention, the light shielding layer provided so as to overlap the sealing material containing the photocurable resin has an opening that is opened so that the light reaches the overlapping sealing material. In the liquid crystal display device, it is possible to suppress uncured sealing material and to suppress deterioration in display quality.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, this invention is not limited to the following embodiment.

  FIG. 1 is a plan view of a liquid crystal display device 30 according to an embodiment of the present invention. 2 is a plan view of the color filter substrate 20 constituting the liquid crystal display device 30, and FIG. 3 is a cross-sectional view of the color filter substrate 20 taken along line III-III in FIG.

  As shown in FIG. 1, the liquid crystal display device 30 includes a TFT substrate 10 and a color filter substrate 20 which are arranged to face each other, a liquid crystal layer 15 provided between the TFT substrate 10 and the color filter substrate 20, and a TFT A sealing material 16 provided in a frame shape so as to surround the liquid crystal layer 15 between the substrate 10 and the color filter substrate 20, and an alignment film (on the liquid crystal layer 15 side of the TFT substrate 10 and the color filter substrate 20). (Not shown), a polarizing plate (not shown) provided on the opposite side of the liquid crystal layer 15 in the TFT substrate 10 and the color filter substrate 20, and the color filter substrate 20 on the upper side of the TFT substrate 10 are provided in a region where they do not overlap. And a driving driver (not shown).

  As shown in FIGS. 2 and 3, the color filter substrate 20 as the first substrate is provided around the transparent insulating substrate 19, the color filter layer 21 provided on the insulating substrate 19, and the color filter layer 21. And the common electrode (not shown) provided on the color filter layer 21.

  The color filter layer 21 includes, for each pixel, which is the minimum unit of an image, for example, a plurality of colored layers 21a colored in red, green, or blue, and a black matrix 21b provided between the colored layers 21a. ing.

  As shown in FIGS. 2 to 4, the light shielding layer 21 c has an opening A that is opened so that, for example, the UV light 1 reaches the color filter substrate 20 along the sealing material 16. Here, FIG. 4 is a cross-sectional view of a bonded body 25 in which the TFT substrate 10 and the color filter substrate 20 are bonded together.

  The TFT substrate 10 as the second substrate includes a plurality of gate lines (not shown) provided so as to extend in parallel to each other and a plurality of source lines provided so as to extend in parallel to each other in a direction orthogonal to the respective gate lines. (Not shown), a plurality of TFTs (not shown) provided as switching elements at the intersections of the gate lines and source lines, and the colored layers 21a on the color filter substrate 20, respectively. And a plurality of pixel electrodes (not shown).

  The TFT is provided on an insulating substrate, a gate electrode that is a portion protruding to the side of the gate line, a gate insulating film provided so as to cover the gate electrode, and a gate electrode on the gate insulating film And a source layer and a drain electrode provided so as to face each other on the semiconductor layer. Here, the source electrode is a portion protruding to the side of the source line. The drain electrode is electrically connected to the pixel electrode.

  Further, in the TFT substrate 10 and the color filter substrate, pixels are configured by the pixel electrodes and the colored layers 21a, respectively, and the display region D is configured by arranging these pixels in a matrix (see FIG. 1 and FIG. 1). (See FIG. 2).

  The liquid crystal layer 15 is composed of nematic liquid crystal (liquid crystal material) having electro-optical characteristics.

  The sealing material 16 is made of, for example, a UV curable resin, a thermosetting and UV curable resin, and includes a UV curable resin. The sealing material 16 may include not only the UV curable resin but also other light curable resins such as a visible light curable resin.

  In the liquid crystal display device 30 configured as described above, in each pixel, when the gate signal is sent from the gate line to the gate electrode and the TFT is turned on, the source signal is sent from the source line to the source electrode, and the semiconductor A predetermined charge is written into the pixel electrode through the layer and the drain electrode. At this time, a potential difference is generated between each pixel electrode of the TFT substrate 10 and the common electrode of the color filter substrate 20, and a predetermined voltage is applied to the liquid crystal layer 15. In the liquid crystal display device 30, an image is displayed by adjusting the light transmittance of the liquid crystal layer 15 by changing the alignment state of the liquid crystal layer 15 according to the magnitude of the voltage applied to the liquid crystal layer 15.

  Next, a method for manufacturing the liquid crystal display device 30 of the present embodiment will be described. The manufacturing method of this embodiment includes a color filter substrate manufacturing process, a TFT substrate manufacturing process, a bonding process, and a photocuring process.

<Color filter substrate manufacturing process>
First, a chromium thin film having a thickness of, for example, about 100 nm is formed on the entire substrate of an insulating substrate such as a glass substrate by a sputtering method, and then patterned by photolithography to form a grid-like black matrix 21b and openings. The light shielding layer 21c having the portion A is formed.

  Subsequently, a color filter layer 21 is formed by patterning a red, green or blue colored layer 21a with a thickness of, for example, about 1.0 μm to 2.5 μm between the lattices of the black matrix 21b. .

  Furthermore, an ITO (Indium Tin Oxide) film is formed on the color filter layer 21 by sputtering, for example, with a thickness of about 100 nm to form a common electrode.

  Finally, a polyimide resin thin film is formed on the entire substrate on which the common electrode is formed by a printing method, and then an alignment treatment is performed on the surface by a rubbing method to form an alignment film.

  As described above, the color filter substrate 20 having the alignment film formed on the surface can be manufactured.

<TFT substrate manufacturing process>
First, a metal film made of titanium or the like is formed on the entire substrate of an insulating substrate such as a glass substrate by a sputtering method, and then patterned by photolithography to form gate lines and gate electrodes.

  Subsequently, a silicon nitride film or the like is formed by a CVD (Chemical Vapor Deposition) method on the entire substrate on which the gate line and the gate electrode are formed, thereby forming a gate insulating film.

  Further, an intrinsic amorphous silicon film and an n + amorphous silicon film doped with phosphorus are successively formed by CVD on the entire substrate on which the gate insulating film is formed, and then the island is formed on the gate electrode by photolithography. Then, a semiconductor layer made of an intrinsic amorphous silicon layer and an n + amorphous silicon layer is formed.

  Then, a metal film made of titanium or the like is formed over the entire substrate on which the semiconductor layer is formed by a sputtering method, and then patterned by photolithography to form a source line, a source electrode, and a drain electrode.

  Subsequently, by etching the n + amorphous silicon layer of the semiconductor layer using the source electrode and the drain electrode as a mask, the channel portion is patterned to form a TFT.

  Further, a silicon nitride film or the like is formed over the entire substrate on which the TFT is formed using a CVD method, and then a contact hole is patterned on the drain electrode by photolithography to form a protective insulating film.

  Then, an ITO film is formed on the entire substrate on the protective insulating film by a sputtering method, and then patterned by photolithography to form a pixel electrode.

  Finally, a polyimide resin is applied to the entire substrate on which the pixel electrodes are formed, and then an alignment film is formed by performing a rubbing process.

  As described above, the TFT substrate 10 having the alignment film formed on the surface can be manufactured.

<Lamination process>
First, the seal material 16 is drawn in a frame shape along the opening A of the light shielding layer 21c on the color filter substrate 20 produced in the color filter substrate production process using a dispenser type coating device. Here, the sealing material 16 includes, for example, 5% by weight of a coloring material 16a made of a black pigment such as carbon black. Further, the colorant 16a may be a spacer made of a black dye such as aniline black, a black spherical body or a columnar body for defining the thickness of the liquid crystal layer 15, instead of the black pigment. Furthermore, if the content of the coloring material 16a in the sealing material 16 is 0.1% by weight to 10% by weight, the light shielding properties and sealing characteristics of the sealing material 16 are improved. When the content of the coloring material 16a in the sealing material 16 is less than 0.1% by weight, the light shielding property of the sealing material 16 is insufficient, for example, the light from the backlight emits the opening A of the light shielding layer 21c. There is concern about the deterioration of display quality due to leakage from the market. When the content of the coloring material 16a in the sealing material 16 exceeds 10% by weight, the sealing properties of the sealing material 16 are insufficient, the bonding strength between the TFT substrate 10 and the color filter substrate 20 is reduced, and the liquid crystal There is a concern about leakage of the liquid crystal material constituting the layer 15.

  Subsequently, the liquid crystal material 15 is supplied dropwise to the color filter substrate 20 on which the sealing material 16 is drawn inside the sealing material 21 (see FIG. 3).

  Finally, the color filter substrate 20 to which the liquid crystal material 15 is dropped and supplied is bonded to the TFT substrate 10 manufactured in the TFT substrate manufacturing step to manufacture a bonded body 25 (see FIG. 4).

<Photocuring process>
For example, 10 J / cm ² (100 mW / cm ² ×) from the color filter substrate 20 side through the opening A of the light shielding layer 21c with respect to the bonded body 25 produced in the bonding process, as shown in FIG. 100 seconds), the sealing material 16 is cured by irradiating the UV light 1 to produce a liquid crystal panel. Thereafter, polarizing plates are respectively attached to the front and back surfaces of the manufactured liquid crystal panel, and a driver and the like are mounted.

  As described above, the liquid crystal display device 30 of this embodiment can be manufactured.

  As described above, according to the liquid crystal display device 30 and the manufacturing method thereof of the present embodiment, the opening A is formed in the light shielding layer 21c in the color filter substrate manufacturing process. The UV light 1 reaches the sealing material 16 through the opening A of the light shielding layer 21c. Therefore, in the photocuring step, the UV curing of the sealing material 16 becomes sufficient and the uncured portion of the sealing material 16 can be suppressed, so that the uncured portion of the sealing material 16 becomes a liquid crystal material constituting the liquid crystal layer 15. Deterioration of display quality due to contact can be suppressed. Further, since the sealing material 16 includes the light shielding colorant 16a, the sealing material 16 has the light shielding property. Therefore, since the light-shielding sealing material 16 is disposed in the opening A of the light-shielding layer 21c, for example, display quality deterioration due to leakage of light from the backlight from the opening A of the light-shielding layer 21c is suppressed. be able to. Therefore, in the liquid crystal display device, it is possible to suppress the uncured sealing material 16 and to suppress the deterioration of display quality.

  In the above embodiment, the UV curing of the sealing material 16 provided in a frame shape has been described. However, in the present invention, after injecting the liquid crystal material inside the sealing material having the liquid crystal injection port, It can also be applied when a UV curable resin is applied and UV cured.

  Furthermore, in the above embodiment, the dropping injection method in which the TFT substrate 10 and the color filter substrate 20 are bonded together via the frame-shaped sealing material 16 and the liquid crystal material 15 is sealed inside the sealing material 16 has been described. However, the present invention can be applied to the vacuum injection method.

  Moreover, in the said embodiment, although the method which produces each TFT substrate 10 and the color filter substrate 20 was illustrated, since this invention can harden the sealing material 16 reliably even if it is a small-sized liquid crystal panel, For example, it is effective for a liquid crystal display device for mobile use in which a large number of TFT substrates 10 and color filter substrates 20 are produced on a pair of mother glasses, respectively, and a manufacturing method thereof.

  Further, in the above-described embodiment, the active matrix driving type liquid crystal display device has been described as an example. However, the present invention is also applied to a passive matrix driving type liquid crystal display device, an organic EL (electroluminescence) display device, a plasma display device, and the like. Can be applied.

  As described above, the present invention can suppress uncured photocurable sealing material, and thus is useful for a display device manufactured by bonding a pair of substrates through a sealing material.

It is a top view which shows the liquid crystal display device 30 which concerns on embodiment of this invention. 4 is a plan view showing a color filter substrate 20 constituting the liquid crystal display device 30. FIG. It is sectional drawing which shows the color filter board | substrate 20 along the III-III line in FIG. It is sectional drawing which shows the bonding body 25 in the photocuring process corresponding to FIG.

Explanation of symbols

A Opening 1 UV light 10 TFT substrate (second substrate)
15 Liquid crystal layer (Liquid crystal material)
16 Sealing material 16a Coloring material 20 Color filter substrate (first substrate)
21 Color filter layer 21c Light shielding layer 25 Bonded body 30 Liquid crystal display device

Claims (12)

A first substrate and a second substrate disposed to face each other;
A liquid crystal layer provided between the first substrate and the second substrate;
A sealing material provided between the first substrate and the second substrate and including a photocurable resin for sealing the liquid crystal layer;
A liquid crystal display device comprising a light shielding layer provided on the first substrate so as to overlap the sealing material,
The light shielding layer has an opening that is opened to allow the light from the first substrate side to reach the sealing material;
The liquid crystal display device, wherein the sealing material includes a light-shielding coloring material. The liquid crystal display device according to claim 1,
The liquid crystal display device, wherein the colorant is a black pigment. The liquid crystal display device according to claim 1,
The liquid crystal display device, wherein the colorant is a black dye. The liquid crystal display device according to claim 1,
The liquid crystal display device, wherein the colorant is a black spherical body or a columnar body. The liquid crystal display device according to claim 4,
The liquid crystal display device, wherein the colorant is configured to define a thickness of the liquid crystal layer. The liquid crystal display device according to claim 1,
The liquid crystal display device, wherein the sealing material contains an ultraviolet curable resin. The liquid crystal display device according to claim 1,
The liquid crystal display device, wherein the sealing material is provided in a frame shape so as to surround the liquid crystal layer. The liquid crystal display device according to claim 1,
The liquid crystal display device, wherein the first substrate is a color filter substrate provided with a color filter layer. The liquid crystal display device according to claim 1,
Content of the coloring material in the said sealing material is 0.1 weight%-10 weight%, The liquid crystal display device characterized by the above-mentioned. A first substrate production step of producing a color filter layer and a first substrate having a light shielding layer around the color filter layer;
A second substrate manufacturing step of manufacturing a second substrate disposed to face the first substrate;
A photo-curable resin provided in a frame shape so that the first substrate manufactured in the first substrate manufacturing step and the second substrate manufactured in the second substrate manufacturing step overlap with the light shielding layer. A pasting step for producing a pasted body by pasting together through a sealing material including,
A method of manufacturing a liquid crystal display device comprising a photocuring step of curing the sealing material by irradiating light to the sealing material in the bonded body produced in the bonding step,
The sealing material includes a light-shielding coloring material,
In the first substrate manufacturing step, an opening for allowing light to reach the sealing material in the bonded body manufactured in the bonding step is formed in the light shielding layer,
In the said photocuring process, light is irradiated from the said 1st board | substrate side with respect to the bonding body produced at the said bonding process, The manufacturing method of the liquid crystal display device characterized by the above-mentioned. In the manufacturing method of the liquid crystal display device described in Claim 10,
In the bonding process, a liquid crystal material is supplied to the inside of the sealing material. In the manufacturing method of the liquid crystal display device described in Claim 10,
In the first substrate manufacturing step and the second substrate manufacturing step, the first substrate and the second substrate are each manufactured by multi-chamfering.

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