JPH0764100A - Liquid crystal display element - Google Patents

Abstract

(57) [Summary] [Object] To provide a liquid crystal display device having a structure that does not cause display defects such as dot-like luminance unevenness and so-called amoebic luminance unevenness. [Structure] A sealing material 52 is interposed between an upper glass substrate material and a lower glass substrate material so as to circulate in a region to be a display surface at the time of completion, and a plurality of barriers 51a extending along the liquid crystal sealing direction are provided in a part thereof. After forming the liquid crystal enclosing opening 51 having the above, the upper glass substrate and the lower glass substrate are joined, and then cut into a desired liquid crystal cell size along a cutting line LL ′ set near the outside of the liquid crystal enclosing opening 51. Be configured,
The liquid crystal injection end of the barrier 51a formed in the liquid crystal enclosing opening 51 was set apart from the cutting line LL ′ in the display region direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display device,
In particular, it is equipped with a structure that prevents glass powder that is contaminated with oils and fats when cutting glass substrate materials from adhering to the liquid crystal encapsulation part, which enters the display area together with the encapsulation liquid crystal and causes display defects such as uneven brightness. Liquid crystal display device.

[0002]

2. Description of the Related Art A liquid crystal display element is one in which a liquid crystal layer is enclosed between two upper and lower glass substrates having electrodes, and a pixel composed of an electrode pair formed on the upper and lower glass substrates is selected to display an image. Therefore, types such as a simple matrix system and an active matrix system are known depending on the system for selecting the pixels.

In any type of liquid crystal display element, basically, as described above, the liquid crystal layer is enclosed between the two upper and lower glass substrates, and the polarization axis of the liquid crystal changes according to the applied electric field. Is used.

FIG. 13 is a developed perspective view for schematically explaining the constitution of the liquid crystal display device, 11 is an upper glass substrate, 12 is a lower glass substrate, 15 is an upper polarizing plate, 16 is a lower polarizing plate, Reference numeral 52 is a sealant, and 51 is a liquid crystal sealing opening formed in the sealant.

In the figure, when the two glass substrate materials are completed, a sealing agent 52 made of an adhesive such as an epoxy resin is applied so as to circulate around the outer periphery of the effective display area, and a liquid crystal sealing opening 51 is provided in a part thereof. After the sealing agent 52 is cured and the two glass substrate materials are bonded, the two glass substrate materials are cut into the required size at the liquid crystal enclosing opening.

A liquid crystal cell is obtained by sealing the liquid crystal between the two cut glass substrates (the upper glass substrate 11 and the lower glass substrate 12) through the liquid crystal sealing opening.

FIG. 14 is a plan view of an essential part for explaining the detailed structure of the liquid crystal enclosing opening portion. 52 is a sealant, 51 is a liquid crystal enclosing opening, and 51a is a barrier.

The barrier 51a is preferably a barrier made of the same material as the sealant 52 for rectifying the flow of the liquid crystal at the time of injecting the liquid crystal and filling the liquid crystal between the upper glass substrate and the lower glass substrate at a uniform flow velocity. Is.

Since the barrier 51a is formed so as to extend from the effective display area to the protruding portion of the liquid crystal encapsulation opening 51, 2
When the glass substrate material is cut along the cutting line LL ′ to the required size at the liquid crystal enclosing opening, the barrier 51a is also cut at the same time.

The barrier 51a forms a plurality of channels extending from the liquid crystal encapsulation opening 51 to the effective display area, and rectifies the liquid crystal (arrow B) from the liquid crystal encapsulation opening 51 into the effective area as shown by the arrow b. It is possible to prevent the liquid crystal in the effective display area from being nonuniformly filled by generating a vortex near the liquid crystal sealing opening 51 in the effective area.

The prior art relating to this type of liquid crystal display device is disclosed in, for example, Japanese Patent Publication No. 51-13.
No. 666 can be cited.

[0012]

In the above conventional liquid crystal display element, the barrier 5 installed in the liquid crystal enclosing opening 51 thereof.
Since 1a is cut together with the glass substrate material, the powder of the cut glass substrate material adheres to the cut surface of the barrier 51a and its vicinity. Dirt such as oil and fat adheres to the glass powder during cutting.

That is, FIG. 15 is a partial cross-sectional view taken along the line AA 'of FIG. 14, in which the glass substrate material for the upper glass substrate 11 and the lower glass substrate 12 is cut along the line LL'.
The scribes s and s ′ are inserted along the line, and a moment is given as shown by arrow C to cut. When the liquid crystal is injected through the liquid crystal sealing opening 51, the glass powder attached to the barrier 51a also enters the effective area. As a result, there is a problem of causing display defects such as spot-like luminance unevenness and so-called amoebic luminance unevenness.

Further, there is a problem that it is difficult to cut the glass substrate material because there are a plurality of barriers 51a at the cutting portion.

It is an object of the present invention to provide a liquid crystal display device having a structure which solves the above-mentioned problems of the prior art and does not cause display defects such as spot-like luminance unevenness and so-called amoebic luminance unevenness. .

[0016]

In order to achieve the above object, the present invention provides an upper glass substrate and a lower glass substrate which are arranged to face each other with a liquid crystal interposed therebetween, and abut on the liquid crystal of the upper substrate. A liquid crystal unit including at least an upper transparent electrode group formed on a surface and a lower transparent electrode group formed on the surface of the lower substrate in contact with the liquid crystal so as to intersect with the upper transparent electrode group; In a liquid crystal surface element including a retardation plate laminated on a glass substrate, and a lower glass substrate and a deflection plate laminated by sandwiching the retardation plate, the liquid crystal cell includes an upper glass substrate material and a lower glass substrate. A sealing material is interposed between the materials so as to circulate in a region to be a display surface when completed, and a liquid crystal sealing opening having a plurality of barriers extending along the liquid crystal sealing direction is formed in a part of the sealing material to form the upper glass substrate. When After joining the glass substrates, the liquid crystal injection end of the barrier formed in the liquid crystal sealing opening is formed by cutting into a required liquid crystal cell size along a cutting line set near the outside of the liquid crystal sealing opening. It is characterized in that it is installed apart from the cutting line in the direction of the display area.

[0017]

[Function] The liquid crystal injection end of the barrier formed in the liquid crystal sealing opening is
Since it is installed away from the cutting line in the direction of the display area, the cutting jig does not cut the barrier when the glass substrate substrate is cut, and thus the exposed portion of the barrier has a cured state. Therefore, glass powder does not adhere to the barrier due to the cutting of the glass substrate base material.

Thus, when the liquid crystal is injected, glass powder or the like is not mixed in the injected liquid crystal, and display unevenness does not occur.

[0019]

Embodiments of the present invention will now be described in detail with reference to the drawings.

FIG. 1 is a plan view of an essential part of a liquid crystal enclosing opening for explaining one embodiment of a liquid crystal display device according to the present invention. The same parts as those in FIG. 14 are designated by the same reference numerals.

As shown in the drawing, the liquid crystal injection end of the barrier 51a is installed so as to be separated from the cutting line LL 'in the display region direction.

FIG. 2 is a partial cross-sectional view taken along the line AA ′ of FIG. 1, showing an upper glass substrate 11 and a lower glass substrate 12.
Scribe s, s'is put along the cutting line LL 'in the glass substrate material to be described, and a moment is given as shown by arrow C to cut.

As described above, in this embodiment, since the barrier 51a is not applied to the cutting line LL 'of the glass substrate material, the barrier 51a is not cut. Therefore, since the glass powder does not adhere to the barrier 51a, the liquid crystal sealing opening 5
When injecting the liquid crystal through 1, the glass powder containing dirt does not enter the effective area. As a result, display defects such as dot-like luminance unevenness and so-called amoeba-like luminance unevenness do not occur.

Further, since the barrier 51a does not exist at the cutting portion, the glass substrate material can be easily cut.

Next, a liquid crystal display device to which the liquid crystal display element of the present invention is applied will be described in more detail by taking a simple matrix type liquid crystal display device as an example.

FIG. 3 shows an arrangement direction of liquid crystal molecules (for example, a rubbing direction), a twisting direction of liquid crystal molecules, a polarization axis (or absorption axis) direction of a polarizing plate, and a birefringence when the liquid crystal display device according to the present invention is viewed from above. FIG. 4 shows the optical axis direction of the retardation plate that produces the effect, and FIG.

Twisting direction 10 of liquid crystal molecules and twist angle θ
Is the rubbing direction 6 of the alignment film 21 on the upper glass substrate 11.
And the rubbing direction 7 of the alignment film 22 on the lower glass substrate 12, and the type and amount of the optical rotatory substance added to the nematic liquid crystal layer 50 sandwiched between the upper glass substrate 11 and the lower glass substrate 12.

In FIG. 4, in order to align the liquid crystal molecules between the two upper and lower glass substrates 11 and 12 that sandwich the liquid crystal layer 50 so as to form a twisted spiral structure, the upper and lower glass substrates 1
The surfaces of the alignment films 21 and 22 which are in contact with the liquid crystal and which are made of an organic polymer resin made of polyimide,
For example, a method of rubbing in one direction with a cloth, a so-called rubbing method is adopted. The rubbing direction at this time, that is, the rubbing direction (in the upper glass substrate 11, the rubbing direction 6,
In the lower glass substrate 12, the rubbing direction 7) is the alignment direction of liquid crystal molecules.

The two upper and lower glass substrates 11 and 12 thus oriented are respectively rubbed in the rubbing directions 6 and 7.
Are opposed to each other with a gap d ₁ so that they cross each other at about 180 to 360 degrees.
When a nematic liquid crystal having a positive dielectric anisotropy and having a predetermined amount of an optical rotatory substance added thereto is sealed by adhering with a frame-shaped sealant 52 having a liquid crystal sealing opening 51 for injecting liquid crystal between the two, The liquid crystal molecules are arranged between the glass substrates in a helical structure having a twist angle θ in the figure. In addition, 31,
Reference numerals 32 are upper and lower electrodes, respectively.

The retardation plate 40 is disposed above the upper glass substrate 11 of the liquid crystal cell 60 thus constructed, and the upper and lower polarizing plates 15 are sandwiched between the retardation plate 40 and the liquid crystal cell 60. 16 are provided.

The twist angle θ of the liquid crystal molecules in the liquid crystal 50 is preferably 200 to 300 degrees, but it is excellent because it avoids the phenomenon that the lighting state near the threshold value of the transmittance-applied voltage curve is a light scattering orientation. From the practical viewpoint of maintaining the time division characteristic, the range of 230 degrees to 270 degrees is more preferable. This condition basically makes the response of the liquid crystal molecules to the voltage more sensitive and acts to realize excellent time division characteristics.

Further, in order to obtain excellent display quality, the product Δ of the refractive index anisotropy Δn ₁ of the liquid crystal layer 50 and its thickness d ₁
It is desirable to set n ₁ · d ₁ in the range of preferably 0.5 μm to 1.0 μm, more preferably 0.6 μm to 0.9 μm.

The birefringent member 40 acts so as to modulate the polarization state of light passing through the liquid crystal cell 60, and converts a display which is only colored by the liquid crystal cell 60 into a black and white display. For this purpose, the product [Delta] n ₂ · d ₂ of the refractive index anisotropy [Delta] n ₂ and the thickness d ₂ of the birefringent member 40 is extremely important, 0.8 micron preferably from 0.4μm
m, more preferably 0.5 μm to 0.7 μm.

Further, since the liquid crystal display device 62 according to the present invention uses the elliptically polarized light due to the birefringence, the polarizing plate 15,
When the uniaxial transparent retardation plate 40 is used as the birefringent member, the relationship between the optical axis and the liquid crystal alignment directions 6 and 7 of the electrode substrates 11 and 12 of the liquid crystal cell 60 is extremely important. is there.

The operation and effect of the above relationship will be described with reference to FIG. This figure shows the relationship between the axis of the polarizing plate, the optical axis of the uniaxial retardation plate, and the liquid crystal alignment direction by the alignment film provided on the glass substrate of the liquid crystal cell when the liquid crystal display device having the configuration of FIG. 4 is viewed from above. It is a thing.

In FIG. 4, 5 is a uniaxial retardation plate 40.
, 6 is the liquid crystal alignment direction by the alignment film provided on the retardation plate 40 and the upper glass substrate 11 adjacent thereto, 7 is the liquid crystal alignment direction by the alignment film provided on the lower glass substrate 12, and 8 is the upper polarizing plate. 15 is the absorption axis or the polarization axis of the liquid crystal, and the angle α is the liquid crystal alignment direction 6 by the alignment film provided on the upper glass substrate 11.
The angle β between the optical axis 5 of the uniaxial retardation plate 40 and the angle β is an angle γ between the absorption axis or polarization axis 8 of the upper polarizing plate 15 and the optical axis 5 of the uniaxial retardation plate 40. Is the angle between the absorption axis or polarization axis 9 of the lower polarizing plate 16 and the liquid crystal alignment direction 7 formed by the alignment film provided on the lower glass substrate 12.

Here, a method of measuring the angles α, β and γ will be defined. In FIG. 8, an intersection angle between the optical axis 5 of the retardation plate 40 and the liquid crystal alignment direction 6 on the upper glass substrate 11 side will be described as an example.

The intersection angle between the optical axis 5 and the liquid crystal alignment direction 6 is shown in FIG.
Can be represented by φ ₁ and φ ₂ , as shown in
Here, the smaller angle of φ ₁ and φ ₂ is adopted.
That is, since φ ₁ <φ ₂ in FIG. 8A, φ ₁ is an intersection angle between the optical axis 5 and the liquid crystal alignment direction 6, and in FIG. 8B, φ ₁ > φ ₂ . Therefore, φ ₂ is an intersection angle between the optical axis 5 and the liquid crystal alignment direction 6. Of course φ ₁ = φ
_In case of ₂ , either one may be adopted.

In this type of liquid crystal display device, the angles α, β and γ are extremely important. The angle α is preferably 5
0 to 90 degrees, more preferably 70 to 90 degrees,
The angle β is preferably 20 to 70 degrees, more preferably 30 to 60 degrees, and the angle γ is preferably 0 to 70 degrees.
It is desirable to set the angle to 0 degree, more preferably to 0 degree to 50 degree.

If the twist angle θ of the liquid crystal layer 50 of the liquid crystal cell 60 is in the range of 180 ° to 360 °, the above angle α is set regardless of whether the twist direction 10 is clockwise or counterclockwise. , Β, γ may be within the above range.

In FIG. 4, the birefringent member 40 is arranged between the upper polarizing plate 15 and the upper electrode substrate 11, but instead of this, it is arranged between the lower glass substrate 12 and the lower polarizing plate 16. You may set it up. In this case, the entire configuration of FIG. 4 is inverted.

Further description will be given below by using a concrete configuration example.

[Specific Example 1] FIG. 5 is an explanatory view of the relationship between the twist direction of liquid crystal molecules, the axial direction of the polarizing plate and the optical axis of the retardation plate in the first specific example of the liquid crystal display device.

The basic structure of Example 1 is the same as that shown in FIGS. 3 and 4. In FIG. 5, the twist angle θ of the liquid crystal molecules is 240 degrees, and as the uniaxial retardation plate 40, a parallel alignment (homogeneous alignment), that is, a liquid crystal cell having a twist angle of 0 degrees was used.

Here, the ratio d / p of the thickness d (μm) of the liquid crystal layer and the helical pitch p (μm) of the liquid crystal material added with the optical rotatory substance was set to about 0.53. The alignment films 21 and 22 were formed of a polyimide resin film and used after being rubbed. The tilt angle (pretilt angle) at which the alignment film subjected to the rubbing process causes the liquid crystal molecules in contact with the alignment film to be tilted with respect to the substrate surface is about 4 degrees.

Δn ₂ · d of the uniaxial transparent retardation plate 40
₂ is about 0.6 μm. On the other hand, Δn ₁ · d ₁ of the liquid crystal layer 50 in which the liquid crystal molecules are twisted by 240 degrees is about 0.8 μm.
Is.

At this time, by setting the angle α to about 90 degrees, the angle β to about 30 degrees, and the angle γ to about 30 degrees, the upper and lower electrodes 31, 32 on which the upper and lower glass substrates 11, 12 are formed.
When the voltage applied to the liquid crystal layer 50 through the liquid crystal layer is less than the threshold value, light non-transmission, that is, black, and when the voltage exceeds a certain threshold value, light transmission, that is, white and black display can be realized.

Further, the axis of the lower polarizing plate 16 is set to 5 from the above position.
When rotated from 0 ° to 90 °, it was possible to realize black and white display in which the white applied when the voltage applied to the liquid crystal layer 50 was below the threshold, and the black when the applied voltage was above the threshold, the reverse of the above.

FIG. 6 shows a change in contrast during time-divisional driving at 1/200 duty when the angle α is changed in the configuration of FIG. Although the contrast was extremely high when the angle α was in the vicinity of 90 degrees, the contrast decreased as the angle deviated. Moreover, when the angle α becomes small, both the lit part and the non-lit part become bluish, and when the angle α becomes large, the non-lit part becomes purple and the lit part becomes yellow, and in any case black and white display is impossible. Similar results are obtained for the angle β and the angle γ, but in the case of the angle γ, when the image is rotated from 50 degrees to 90 degrees, the opposite black and white display is performed.

"Specific Example 2" The basic structure of Specific Example 2 is the same as that of "Specific Example 1". However, the twist angle of the liquid crystal molecules of the liquid crystal layer 50 is 260 degrees, and Δn ₁ · d ₁ is about 0.65.
The difference is that it is μm to 0.75 μm. Δn ₂ · of the parallel alignment liquid crystal layer used as the uniaxial transparent retardation plate 40
d ₂ is about 0.58 μm, which is the same as “Specific Example 1”.

At this time, by setting the angle α to about 100 degrees, the angle β to about 35 degrees, and the angle γ to about 15 degrees, the black and white display similar to the "concrete example 1" can be realized. Also, the reverse black-and-white display is possible by rotating the position of the axis of the lower polarizing plate from the above value by 50 to 90 degrees, which is also the same as in "Specific example 1". The inclinations of the angles α, β, and γ with respect to the deviation are almost the same as in “Specific Example 1”.

In each of the above examples, a parallel alignment liquid crystal cell having no twist of liquid crystal molecules is used as the uniaxial transparent retardation plate 40, but a liquid crystal layer in which liquid crystal molecules are twisted by about 20 to 60 degrees is used. There is less color change depending on the angle. Like the liquid crystal layer 50, the twisted liquid crystal layer is formed by sandwiching a liquid crystal between a pair of substrates which have been subjected to an alignment treatment so that the alignment treatment directions intersect a predetermined twist angle. It In this case, the bisected angle of the two alignment treatment directions sandwiching the twisted structure of the liquid crystal molecules may be treated as the optical axis of the birefringent member.

The phase difference plate 40 is a uniaxially stretched P film.
ET (polyethylene terephthalate), acrylic resin, and polycarbonate are effective.

Further, although a single retardation plate is used in the above specific examples, in addition to the retardation plate 40 in FIG. 4, another one is provided between the lower glass substrate 12 and the lower polarizing plate 16. It is also possible to insert a single retardation plate. In this case, Δn ₂ · d ₂ of these birefringent members may be readjusted.

[Specific Example 3] FIG. 7 is an explanatory view of the relationship among the alignment direction of liquid crystal molecules, the twisting direction of liquid crystal molecules, the direction of the axis of the polarizing plate, and the optical axis of the birefringent member in Specific Example 3.

The basic structure of this specific example is similar to that of "specific example 1." However, as shown in FIG. 9, the upper electrode substrate 11
Red, green, and blue color filters 33R, 22G, 3 on top
By providing a light shielding film 33D between the filters 3B and the respective filters, multicolor display is possible.

In FIG. 9, a smoothing layer 23 made of an insulating material is formed on each of the color filters 33R, 22G, 33B and the light-shielding film 33D to reduce the influence of these irregularities. The upper electrode 31 and the alignment film 21 are formed.

"Specific Example 4" In this example, the liquid crystal display device 62 of "Specific Example 3", a drive circuit for driving the liquid crystal display device 62, and a light source are compactly integrated into a liquid crystal display module 63. Is configured.

FIG. 10 is an exploded perspective view for explaining the structure of the liquid crystal display device of the fourth specific example.

In the figure, an IC 34 for driving the liquid crystal display device 62 is mounted on a frame-shaped printed board 35 having a window portion for fitting the liquid crystal display device 62 in the center.

The printed circuit board 35 in which the liquid crystal display device 62 is fitted is a frame-shaped body 42 formed by plastic molding.
Of the metal frame 41, and the claw 43 is bent into the notch 44 formed in the frame-shaped body 42 to fix the frame 41 to the armpit body 42.

A cold cathode fluorescent lamp 36 disposed at the upper and lower ends of the liquid crystal display device 62, a light guide 37 made of an acrylic plate for uniformly irradiating the liquid crystal display cell 60 with light from the cold cathode fluorescent lamp 36, A reflecting plate 38 formed by applying white paint to a metal plate and a milky white diffusing plate 39 for diffusing light from the light guide 37 are provided in the order shown in FIG. Be fitted.

An inverter power supply circuit (not shown) for turning on the cold cathode fluorescent lamp 36 faces a recess 45 (not shown in the drawing) provided on the back side of the right side of the frame 42. It is stored in (1). Diffuser 39, light guide 3
7, the cold cathode fluorescent lamp 36 and the reflector 38 are the reflector 38
It is fixed by bending the tongue piece 46 provided in the inside of the small opening 47 provided in the frame-shaped body 42.

"Specific Example 5" The liquid crystal display device 63 of "Specific Example 4" is used in the display section of a laptop personal computer. The block diagram is shown in FIG.
2 shows a state of being mounted on the laptop personal computer 64.

In each figure, the microprocessor 49
The liquid crystal display module is driven by the driving IC 34 via the control LSI 48 based on the result calculated in (4).

[0066]

As described above, according to the present invention,
High-quality liquid crystal that prevents glass powder that is contaminated with oils and fats when cutting glass substrate material from adhering to the liquid crystal encapsulation area and invading the display area together with the encapsulation liquid crystal to cause display defects such as uneven brightness. A display element can be provided.

[Brief description of drawings]

FIG. 1 is a plan view of an essential part of a liquid crystal enclosing opening for explaining an embodiment of a liquid crystal display device according to the present invention.

FIG. 2 is a partial cross-sectional view taken along the line AA ′ of FIG. 1 for explaining one embodiment of the liquid crystal display device according to the present invention.

FIG. 3 is an explanatory view of an alignment direction of liquid crystal molecules, a twisting direction of liquid crystal molecules, a polarization axis direction of a polarizing plate, and an optical axis direction of a retardation plate that causes a birefringence effect when the liquid crystal display device according to the present invention is viewed from above. It is a figure.

FIG. 4 is a perspective view of a main part of a liquid crystal display device to which the present invention is applied.

FIG. 5 is an explanatory diagram of a relationship among a twist direction of liquid crystal molecules, an axial direction of a polarizing plate, and an optical axis of a retardation plate in a specific example 1 of a liquid crystal display device to which the present invention is applied.

6 is 1/2 when the angle α is changed in the configuration of FIG.
It is explanatory drawing which shows the contrast change at the time duty drive with 00 duty.

FIG. 7 is an explanatory diagram of a relationship among an alignment direction of liquid crystal molecules, a twisting direction of liquid crystal molecules, a direction of an axis of a polarizing plate, and an optical axis of a birefringent member in Example 3 of a liquid crystal display device to which the present invention is applied.

FIG. 8 is an angle α formed between the liquid crystal alignment direction by the alignment film provided on the upper glass substrate and the optical axis of the uniaxial retardation plate, the absorption axis of the upper polarizing plate or the optics of the polarization axis and the uniaxial retardation plate. FIG. 6 is an explanatory diagram of how to measure an angle β formed by the axis and an angle γ formed by the absorption axis or the polarization axis of the lower polarizing plate and the liquid crystal alignment direction by the light distribution film provided on the lower glass substrate.

FIG. 9 is an explanatory diagram of specific example 3 of the liquid crystal display device to which the present invention is applied.

FIG. 10 is an exploded perspective view illustrating a structure of a specific example 4 of the liquid crystal display device to which the present invention is applied.

FIG. 11 is a perspective view of a laptop personal computer to which the liquid crystal display device according to the present invention is applied.

FIG. 12 is a block diagram illustrating a device configuration of a laptop computer to which the present invention has been applied.

FIG. 13 is a developed perspective view for schematically explaining the configuration of the liquid crystal display element.

FIG. 14 is a plan view of relevant parts for explaining a detailed structure of a liquid crystal enclosing opening portion.

15 is a partial cross-sectional view taken along the line AA ′ of FIG.

[Explanation of symbols]

 51 Liquid Crystal Encapsulation Opening 51a Barrier 52 Sealant.

Claims (1)

[Claims] 1. An upper glass substrate and a lower glass substrate, which are arranged to face each other with a liquid crystal interposed therebetween, an upper transparent electrode group formed on a surface of the upper substrate in contact with the liquid crystal, and the lower substrate. A liquid crystal unit including at least a lower transparent electrode group formed so as to intersect with the upper transparent electrode group on a surface in contact with liquid crystal, a retardation plate laminated on the upper glass substrate, and the lower glass substrate. In a liquid crystal display device comprising: a polarizing plate laminated with the retardation plate sandwiched therebetween, the liquid crystal cell is arranged between an upper glass substrate material and a lower glass substrate material so as to circulate in a region to be a display surface when completed. A liquid crystal encapsulation opening having a plurality of barriers extending along the liquid crystal encapsulation direction is formed in a part of the sealing material, and after bonding the upper glass substrate and the lower glass substrate, the liquid crystal encapsulation opening is provided near the outside of the liquid crystal encapsulation opening. Setting The liquid crystal injection end of the barrier formed in the liquid crystal encapsulation opening is formed by cutting the liquid crystal cell into a desired size along a predetermined cutting line.
A liquid crystal display device, wherein the liquid crystal display device is installed at a distance from the cutting line in the display region direction.