JP3313986B2 - Liquid crystal display device and manufacturing method thereof - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a liquid crystal display device, and more particularly to a display device using a droplet type liquid crystal element having dielectric anisotropy, and a manufacturing method including the orientation thereof.

[0002]

2. Description of the Related Art As a liquid crystal display device having excellent viewing angle characteristics,
BACKGROUND ART A polymer-dispersed liquid crystal in which a liquid crystal is dispersed in a polymer is known. For example, as disclosed in Japanese Patent Application Laid-Open No. 57-503161, a configuration in which encapsulating liquid crystal is sandwiched between two electrodes, or in addition to this configuration, the liquid crystal is aligned according to the alignment of the liquid crystal material. It is shown that an image can be displayed by including a chromatic dye in a capsule by using either change in light scattering or light transmittance in accordance with an increase in applied voltage. In this method, a bright image display can be obtained because no polarizing plate is used. Further, since the display mode uses the scattering mode of the liquid crystal or the guest host mode, a wider viewing angle characteristic can be obtained as compared with the twisted nematic mode in which the twist of the liquid crystal is changed.

[0003]

In the above prior art, since liquid crystal is dispersed in a polymer, it is difficult in principle to align the alignment directions when no voltage is applied. JP-A-5-119302 discloses a method of providing an alignment film on the surface of two substrates constituting a cell, performing an alignment treatment by rubbing, enclosing a liquid crystal phase mixed with a polymer, and curing the polymer by heat treatment. Is disclosed. However, the alignment by rubbing complicates the manufacturing process. Furthermore, when the liquid crystal is a droplet, the alignment by the rubbing charge is limited in the thickness direction, and it is difficult to obtain a sharp sensitivity to voltage. Therefore, in order to realize high-duty driving, static driving by an active matrix element is required, and the structure is complicated and expensive.

An object of the present invention is to provide a liquid crystal display device using a dispersion type liquid crystal, which can have a high duty with a simple structure, and a method of manufacturing the same.

[0005]

In order to achieve the above object, a liquid crystal display device of the present invention comprises a liquid crystal droplet containing a dye dispersed in an insulating medium and sealed between opposing substrates. An orientation control electrode is provided on the first substrate so that the optical orientation direction of the dye when no voltage is applied is aligned in one direction substantially parallel or substantially perpendicular to the substrate.

The alignment control electrode is provided in a plurality of stripes in a predetermined direction on the surface of the first substrate to form a first plurality of stripe electrodes, and aligns the liquid crystal by an AC voltage between adjacent electrodes. It is configured to be able to apply a horizontal electric field that changes.

In the manufacture of the liquid crystal display element, the dispersion type liquid crystal is formed on the surface of the substrate on the first side, and the potential of the electrode adjacent to the alignment control electrode is set until the insulating medium is cured. Applies a horizontal electric field to the liquid crystal with different AC voltages, and aligns the major axis of the P-type liquid crystal molecules substantially parallel to the substrate. In the case of N-type liquid crystal molecules, the alignment direction is aligned substantially perpendicular to the substrate.

Further, in the liquid crystal display device according to the present invention, a second plurality of stripe-shaped electrodes provided on the first substrate side in parallel with the predetermined direction, and orthogonal to the second substrate side in the predetermined direction. And a third plurality of striped electrodes provided so that one of the second and third electrodes constitutes a signal electrode for applying a voltage corresponding to a pixel signal, and the other constitutes a scanning electrode.

The first plurality of striped electrodes and the second plurality of striped electrodes are provided in different layers on or near the surface of the first substrate. Thereby, the effect of the orientation control by the lateral electric field is enhanced. Further, when the second electrode is arranged corresponding to a pixel pitch as a signal electrode, the first electrode is arranged so as to cover the gap, and in the case of a transmissive liquid crystal display device, the former is opaque. The electrode and the latter are formed of transparent electrodes, and in the case of the reflection type, the opposite is adopted, thereby reducing leakage light and improving the contrast.

As a different aspect of the present invention, a first plurality of stripe-shaped electrodes serving as the alignment control electrodes and a second plurality of stripe-shaped electrodes serving as the signal electrodes are used.
This can be achieved by narrowing the space between the stripe-shaped electrodes and securing a necessary electrode width as a signal electrode. According to this configuration, not only the effect of being able to use the electrode, but also the effect of other electrodes on the electric field for orientation control is achieved, so that the orientation effect is effectively performed. Note that it is also possible to arrange a plurality of the first stripe-shaped electrodes in pixel units.

In the liquid crystal display device according to the present invention, a plurality of switches having a switch for controlling writing and holding of a voltage corresponding to an image signal are provided on a front surface or a back surface of the second substrate as a voltage application means for the pixel signal. The pixel electrode is disposed. As this switch, for example, a discharge switch is used.

Further, in the liquid crystal display device according to the present invention, a polarization detecting element having a polarization direction orthogonal to the optical alignment direction of the liquid crystal element when no voltage is applied is arranged on the second substrate. I do. According to this, in a configuration in which a thin layer of liquid crystal oriented substantially parallel to the substrate is sealed between the gaps of the opposing substrates, even when the liquid crystal is completely oriented in one direction when no voltage is applied. The contrast can be secured by the interaction with the deflection detecting element. As this polarization detecting element, an insulating medium in which liquid crystal in which the optical alignment direction is perpendicular when no voltage is applied is dispersed is laminated on the back surface of the second substrate.

The operation and effect of the configuration of the present invention will be described.
The liquid crystal is a droplet containing a dye, which is encapsulated by a substantially spherical capsule formed by phase separation from an insulating medium. Therefore, when a horizontal electric field parallel to the substrate is applied to the liquid crystal by an AC voltage from the alignment control electrode, the liquid crystal is aligned substantially parallel to the substrate, and the internal dye is also aligned to follow.

When a voltage is applied, the liquid crystal is oriented substantially along the inner surface of the droplet starting from the two poles on the inner surface of the droplet. Since the poles of this spherical droplet are normally oriented in a random direction, the off-characteristics when a driving voltage is applied do not become sufficiently low. Therefore, when the liquid crystal is fixed in parallel to the substrate by applying a horizontal electric field according to the present invention and cured in a state where the polarities of the droplets are aligned, the orientation of the liquid crystal when no voltage is applied after removing the horizontal electric field is changed. As described above, control can be performed substantially parallel or substantially perpendicular to the substrate.

A voltage corresponding to a pixel signal is applied from each electrode of the counter substrate in which the neatly aligned liquid crystal is sealed,
By controlling the directions of the liquid crystal and the dye, the transmittance (or the refractive index) of the transmitted light / reflected light is varied to realize image display.

According to the present invention, the orientation of the dye in the droplet of the dispersion type liquid crystal formed on the substrate when no voltage is applied can be easily and reliably aligned by the lateral electric field from the orientation control electrode. Therefore, the sensitivity of the dispersion type liquid crystal to the applied voltage becomes steep, and high-duty driving can be realized with a simple structure without impairing the wide viewing angle characteristics.

Since the alignment control electrode and the stripe electrode extending in the same direction are provided in different layers on the same substrate, a horizontal electric field is applied to the liquid crystal by an AC voltage having a different potential between adjacent alignment control electrodes. And the orientation can be reliably controlled before curing.

Further, since an analyzer is provided outside the substrate on the opposite side of the direct-view transmission type light source to eliminate the polarization characteristics generated when the dispersion type liquid crystal is thinned, low-pressure driving by reducing the liquid crystal gap is facilitated. realizable.

Further, since the alignment control electrodes are provided in the same direction as the stripe electrodes at each pixel pitch and so as to cover the gaps between the electrodes, the contrast can be improved by shielding the leaked light.

Further, a vacuum or a discharge space filled with a discharge gas is provided by a partition formed on one surface of one of the insulating substrates, and a pair of transparent discharge electrodes extending in a stripe shape are formed in the discharge space. Since the voltage applied to the liquid crystal 23 is determined by the second stripe-shaped electrode and the voltage applied to the third stripe-shaped electrode facing the discharge charge 93, the pixel impedance after the discharge is reduced. It is kept very high and good display characteristics can be realized. Further, since the writing and the holding state can be separated by the discharge switch, high duty display can be realized by static driving using the discharge switch.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments 1 to 3 in which the present invention is applied to a direct-view / transmission type liquid crystal display device and embodiment 4 in which the present invention is applied to a direct-view / reflection type will be described in detail with reference to the drawings. Will be described.

Embodiment 1 FIG. 1 shows a sectional view (a) and a plan view (b) of the configuration of a direct-view / transmission type liquid crystal display device according to this embodiment. The basic configuration is almost the same as that of a conventional liquid crystal display device, except that an alignment control electrode is provided between opposing stripe electrodes.

As shown in FIG. 1A, a plurality of transparent stripe electrodes 11 and 12 extending in directions perpendicular to each other are provided inside two opposing insulating substrates 1 and 2. The stripe electrode 11 is provided on the surface of the substrate 1, and the stripe electrode 12 is provided near the surface of the substrate 2. Opaque alignment control electrodes 24 are provided on the surface of the insulating substrate 2 at a pixel pitch (or an integer division thereof) so as to cover the gap between the electrodes 12. The upper and lower stripe electrodes 1
A red color filter 31-R, a green color filter 31-G, and a blue color filter 31-B are arranged on the insulating substrate 1 corresponding to pixel positions defined by the intersections of 1, 12 respectively. .

Further, a cell structure in which a polymer dispersed liquid crystal 23 in which a liquid crystal droplet 22 is dispersed in an insulating medium 21 is sandwiched between the insulating substrates 1 and 2 is provided. The polymer-dispersed liquid crystal 23 is in the form of an emulsion in which the liquid crystal droplets 22 are sufficiently dispersed in the insulating medium 21 and is uniformly applied on the insulating substrate 2 in a thickness range of several microns to 20 microns. . Liquid crystal droplet 2 of this embodiment
The number 2 is controlled to a particle size of submicron to several microns depending on the degree of classification, and several to several tens of liquid crystal droplets are distributed in layers in the thickness direction between the substrates 1 and 2 (between gaps). The liquid crystal 22 is a dichroic black dye whose light absorption and transmission ratio changes depending on the orientation direction of the dye,
It is contained in the range of several percent to about 10 percent.

In the manufacturing method of this embodiment, an AC voltage is applied to the alignment control electrode 24 from the time when the emulsion-type polymer dispersed liquid crystal 23 is dried and the alignment direction of the liquid crystal is fixed randomly. The orientation of the liquid crystal is aligned parallel to the substrate surface by a horizontal electric field parallel to the insulating substrate 2.

FIG. 2 shows a configuration for controlling the orientation. As shown in FIG. 1A, an AC power supply and a plurality of orientation control electrodes 24 are connected so that adjacent electrodes have different potentials, and a sine wave or rectangular wave AC in a range of several volts to 100 volts is provided. A voltage was applied for a few seconds to 20 seconds. The magnitude and period of the applied voltage are selected according to the layer thickness of the liquid crystal 23 and the pixel pitch. In this embodiment, since the plurality of stripe electrodes 12 have different layers from the alignment control electrodes 24 as shown in the figure, the lateral electric field applied between the adjacent alignment control electrodes 24 effectively acts on the liquid crystal droplet 21. I do.

According to the construction of this embodiment, the thickness of the polymer dispersion type liquid crystal produced as a prototype is several microns to 20 microns, whereas the particle diameter of the liquid crystal droplet is from submicron to several microns depending on the degree of classification. Is controlled. In addition, since the characteristics of the liquid crystal used are positive (P-type), the direction in which the electric field is applied matches the direction in which the birefringent liquid crystal has a higher refractive index.

In the polymer-dispersed liquid crystal device of this embodiment, there are actually a plurality of droplets in the thickness direction. The refractive index of the polymer surrounding the liquid crystal is adjusted to the higher refractive index of the liquid crystal, and is different from that of the liquid crystal oriented parallel to the substrate when no voltage is applied. The incident light is scattered by the difference in the refractive index.

The scattering effect is more remarkable as the number of liquid crystal droplet layers increases. In the case of a structure having two or more liquid crystal droplets, the scattered incident light is absorbed by the dye contained in the liquid crystal with high efficiency. The off characteristic when no voltage was applied was obtained. That is, the unpolarized incident light is polarized in the first droplet layer with uniform alignment, and one polarized light is absorbed by the dye, but becomes refracted when entering the second droplet. Polarization is canceled by the difference in the ratio, and half is absorbed. By repeating this process, the off characteristics are improved.

Further, in order to constitute a liquid crystal display device, a reflecting plate 41 and a fluorescent lamp 4 are provided near the insulating substrate 2.
2. A surface light source 45 composed of a light guide 43 is provided, the transmittance of the liquid crystal 22 is controlled by a signal voltage applied between the stripe electrodes 11 and 12, and an image is displayed by transmitting or scattering the light from the light source 45. .

FIG. 1B shows a method of applying a signal voltage.
As shown in the plan view, a scanning signal generated by a scanning signal source 51 and a stripe electrode 12 are applied to the stripe electrode 11.
The image display is realized in accordance with the timing at which the image signal generated by the image signal source 52 is applied to the pixel portion defined by the intersection of the two electrodes.

FIG. 3 shows timing waveforms of the scanning signal, the image signal, and the voltage applied to the pixel portion. The scanning signals Vx1, Vx2, Vx3 from the scanning signal source 61 are applied line-sequentially to the plurality of stripe electrodes 11, and when the pixel signal Vy1 from the pixel signal source 62 is applied to one of the stripe electrodes 12, Signal voltage V applied to the pixel section where
xy1 is a value obtained by synthesizing the changes of the scanning signals Vx1, Vx2, Vx3 and the pixel signal Vy1, and thereby controls the transmittance of the liquid crystal 23.

FIG. 4 shows a characteristic curve of the liquid crystal element. In the conventional voltage-transmittance characteristic curve 71, while the transmittance starts to increase from a low applied voltage, it does not readily saturate even at a high voltage, and a steep electro-optical characteristic required for high duty is not obtained. This is because the alignment direction of the liquid crystal droplets in the absence of an electric field is fixed in a disordered or insufficient state, so that the liquid crystal droplets appear as characteristics of a set of liquid crystal droplets having various types of electro-optical characteristics. I have.

On the other hand, in the characteristic curve 72 according to the present embodiment,
The signal voltage Vxy of the pixel unit is turned on / off by a narrow voltage change of about 3 volts, and the voltage sensitivity is improved to be steeper than the conventional characteristics. As a result, high duty can be achieved with a simple structure having no switching element.
It could be improved to about 00 lines, and application to large-capacity display became possible.

Further, the orientation control electrode 24 is made opaque,
Since the arrangement is made so as to shield the gap between the stripe electrodes 12 having different layers, the effect of blocking light leaking from between the stripe electrodes 12 and improving the contrast ratio is also obtained.

FIG. 2B is a schematic view of a modification of the first embodiment (FIG. 2A). Here, a process in the course of manufacturing the liquid crystal display element is shown, in which only an opaque alignment control electrode 24 is provided on the insulating substrate 2, a polymer dispersed liquid crystal 23 is applied on the insulating substrate 2, and an emulsion polymer Dispersion type liquid crystal 23
Until the liquid is dried, different potentials are applied between the adjacent alignment control electrodes 24, and the alignment of the liquid crystal is aligned in a direction parallel to the substrate surface by a lateral electric field parallel to the insulating substrate 2.

That is, in the case of FIG. 2A, after the alignment control electrode 24 and the stripe electrode 12 are provided on the substrate 2 in different layers, the polymer dispersed liquid crystal 23 is sealed, and the alignment control is performed. In contrast, in the case of this example, the stripe electrode 12 is used.
It is carried out in the state without. According to this, since the influence of the stripe electrode 12 does not act on the horizontal electric field generated by the alignment control electrode 24, the alignment can be controlled efficiently.

Although the stripe electrode 12 may be formed after the alignment control, the alignment control electrode 2 is preferably used.
4 is also used. Therefore, the electrode width required for the alignment control electrode 24 as a signal electrode (electrode width / space> k)
In order to secure this, the space between the stripe electrodes is narrowed. The pitch of the stripe electrodes 12 usually corresponds to the pixel pitch. In this case, the orientation control electrode 24 is an integral multiple of the pitch to secure an effective electrode interval for orientation control.

Embodiment 2 FIG. 5 shows the configuration of a direct-view / transmission type liquid crystal display device according to this embodiment. The basic structure and the manufacturing method are the same as those of the first embodiment shown in FIGS. 1 to 4, but the structure is suitable for thinning the polymer dispersed liquid crystal 23 and driving it at a low voltage.

When the thickness of the polymer dispersed liquid crystal 23 is reduced, a reduction in driving voltage and a high-speed response can be realized. However, when the number of liquid crystal droplets in the thickness direction decreases, it becomes difficult to eliminate the above-mentioned polarization characteristics of the dye at the time of no voltage, and black does not sink due to transmission of light due to deflection, resulting in a decrease in contrast ratio.

In this embodiment, an analyzer (deflection plate) 32 is provided at a cross Nicol arrangement position perpendicular to the alignment direction of the liquid crystal 23 when no voltage is applied after alignment control and parallel to the substrate. However, the lower limit of the number of liquid crystal droplets in the thickness direction is two or more.

FIG. 6 shows the voltage-transmittance characteristics of the polymer-dispersed liquid crystal according to the present embodiment. In contrast to the characteristic curve 73 using the analyzer 32, the characteristic curve 74 using the analyzer 32 has a substantially improved contrast ratio, although the saturation luminance is reduced by about half.

[Embodiment 3] FIG.
Another embodiment of a transmission type liquid crystal display device is shown. The basic structure and the manufacturing method are the same as those of the first embodiment shown in FIGS. 1 to 4, but a stripe electrode 91 constituting a pixel electrode is used as a means for applying a voltage to the polymer dispersed liquid crystal 23 according to an image signal. The difference is that a discharge switch 92 is used.

The cross-sectional view of FIG. 7A is vertically opposite to the embodiment shown in FIG. 1A, in which the orientation control electrode 24 is disposed on the insulating substrate side 1 on which the color filter 31 is provided. The alignment direction of the liquid crystal droplets is previously adjusted by the alignment control electrode 24 by applying a voltage at the time of manufacturing, and the polymer dispersed liquid crystal layer 23 is formed. In this embodiment, the color filter 3
Although 1 and the alignment control electrode 24 are provided on the same substrate side, they may be provided on the counter substrate side, or the stripe direction of the color filter may extend in a direction orthogonal to the alignment control electrode 24.

Further, the liquid crystal 23 faces the insulating substrate 1.
A vacuum or a discharge space 91 in which a discharge gas is filled is provided on a transparent insulating substrate 2 enclosing the space, and a pair of transparent discharge electrodes 92 extending in a stripe shape are provided in the discharge space. Has formed.

In this configuration, a discharge is formed in the discharge space 91 in the line order by applying a voltage to the discharge electrode 92, and the applied voltage to the liquid crystal 23 is determined by the applied voltage of the stripe electrode 12 facing the discharge charge 93. Is determined. As shown in FIG. 7B, the stripe electrode 12 is a scanning electrode, and the discharge electrode 92 forms a pixel electrode to which a pixel signal is applied.

According to the present embodiment, since the pixel impedance after the end of the discharge is maintained at a very high level, good display characteristics can be realized by the voltage applied to the liquid crystal. Further, since the writing and the holding state can be separated by the discharge switch, high duty display can be realized by static driving using the discharge switch.

Embodiment 4 FIGS. 8A and 8B are a sectional view and a plan view, respectively, of a direct-view / reflection type liquid crystal display device according to this embodiment.
Is shown. The basic configuration and the manufacturing method are the same as those of the first embodiment shown in FIGS. 1 to 4 except that the alignment control electrode 24 is a transparent electrode, the stripe electrode 12 is a reflective electrode, Stripe electrode 1 at bottom
2 in that a light absorbing layer 13 for absorbing light passing through the gap 2 is provided.

In the direct-view / reflection type liquid crystal display device, the reflectivity of the liquid crystal droplet 22 changes for each pixel in accordance with the image signal applied from the orthogonal stripe electrodes 11 and 12, and furthermore, the color filter reciprocates. By passing through, a color display is realized.

In the present embodiment, since the alignment control electrode 24 is a transparent electrode, unnecessary reflection which does not depend on display on the alignment control electrode is transmitted, and the unnecessary light is absorbed by the light absorbing layer 13. This makes it possible to realize a high-quality color display with a high contrast ratio in a simple reflective structure.

While the embodiment of the present invention has been described as applied to a liquid crystal display device, a member other than the display device, such as a liquid crystal shutter, or a member having the same dielectric anisotropy and electro-optical characteristics as a liquid crystal device. Needless to say, it can also be applied to.

[0052]

According to the present invention, the orientation of the dispersed liquid crystal formed on the substrate when no voltage is applied can be easily and reliably aligned by the lateral electric field from the orientation control electrode. The sensitivity of the liquid crystal to applied voltage becomes steep,
High duty driving can be realized with a simple structure without impairing the wide viewing angle characteristics.

Since the stripe electrodes extending in the same direction as the alignment control electrodes are provided in different layers on the same substrate, a horizontal electric field is applied to the liquid crystal by an AC voltage having a different potential between adjacent alignment control electrodes. And the orientation can be reliably controlled before curing.

Further, an analyzer is provided outside the substrate on the side opposite to the light source of the direct-view transmission type to eliminate the polarization characteristics caused when the dispersion type liquid crystal is made thinner. realizable.

Further, in the direct-view transmission type, an opaque alignment control electrode is provided in the same direction as the stripe electrode at each pixel pitch and so as to cover the gap between the electrodes. The contrast can be improved.

On the other hand, in the direct-view reflection type, since the alignment control electrodes arranged in the same manner as in the transmission type are made transparent and the unnecessary light absorbing layer is provided, the contrast can be improved.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view and a plan view of a direct-view transmission type liquid crystal display device according to a first embodiment of the present invention.

FIG. 2 is a configuration diagram for performing alignment control in a manufacturing process of the dispersion type liquid crystal display device.

FIG. 3 is a driving waveform diagram of the liquid crystal display device.

FIG. 4 is a characteristic diagram of voltage-transmittance of a liquid crystal display device.

FIG. 5 is a sectional view of a liquid crystal display device according to a second embodiment of the present invention.

FIG. 6 is a characteristic diagram showing electro-optical characteristics of Example 2.

FIG. 7 is a cross-sectional view and a plan view of a liquid crystal display device according to a third embodiment of the present invention.

FIG. 8 is a cross-sectional view and a plan view of a direct-view reflective liquid crystal display device according to a fourth embodiment of the present invention.

[Explanation of symbols]

1,2 ... insulating substrate, 11,12 ... transparent stripe electrode, 21 ... insulating medium, 22 ... liquid crystal droplet, 2
DESCRIPTION OF SYMBOLS 3 ... Polymer-dispersed liquid crystal, 24 ... Alignment control electrode, 31 ... Color filter, 32 ... Analyzer, 41 ... Reflector, 42 ... Fluorescent lamp, 43 ... Light guide, 45 ... Surface light source, 51 ... Scan signal source , 52... Image signal sources.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G02F 1/1343 G02F 1/1334 G02F 1/1337 G09F 9/35

Claims (4)

(57) [Claims] 1. An insulating medium in which liquid crystal droplets having a dielectric anisotropy and containing a dye are dispersed between two opposing insulating substrates, and an image signal is transmitted to the dispersed liquid crystal. A voltage applying means including a first plurality of stripe-shaped electrodes connected to a pixel signal source and a second plurality of stripe-shaped electrodes connected to a scanning signal source, which are orthogonal to each other to apply a corresponding voltage; In the liquid crystal display device, the optical orientation direction of the dispersion type liquid crystal when no voltage is applied to the first substrate of the insulating substrate is aligned in one direction substantially parallel or substantially perpendicular to the substrate. Of the orientation control electrode,
A liquid crystal display device provided in a predetermined arrangement relationship with the voltage applying means. 2. The method according to claim 1, wherein the alignment control electrode comprises a plurality of stripe-shaped electrodes extending in a direction for generating a horizontal electric field parallel to the first substrate,
A liquid crystal display device, which is arranged in parallel with the first plurality of striped electrodes and so as to cover a gap between the striped electrodes. 3. The method according to claim 1, wherein the alignment control electrode is provided in a different layer from the first plurality of stripe-shaped electrodes on a surface of the first substrate or a layer in the vicinity thereof. Liquid crystal display device. 4. A liquid crystal having a dielectric anisotropy and containing a dye.
Medium with dispersed droplets of
Applying means for applying a voltage corresponding to an image signal to the liquid crystal display
In the method of manufacturing a liquid crystal display device comprising:
A plurality of stripes that constitute one of the application means and are orthogonal to each other
Electrode and the stripe-shaped electrode on the surface of one of the substrates
The electrode is made into a different layer to form a plurality of stripe-shaped alignment control electrodes.
And dispersing the droplet on the surface of the one substrate.
The insulating medium is formed into a film, and the alignment is performed before the medium is cured.
Applying a horizontal electric field parallel to the substrate from the control electrode,
The orientation of the crystal and the dye following it is substantially flat with the substrate.
It is characterized by performing alignment control to make the line or almost vertical
Of manufacturing a liquid crystal display device.