JPH06337428A - Liquid crystal cell - Google Patents

Abstract

PURPOSE:To provide a liquid crystal cell by which deformation and the like of transparent substrates caused by expansion and contraction of liquid crystal can be prevented while keeping an interval between the transparent substrates constant. CONSTITUTION:A liquid crystal cell 10 has a pair of transparent substrates 11 and 12 arranged opposite to each other, sealing materials 13 fixed between the transparent substrate 11 and the transparent substrate 12, transparent electrodes 14 and 15 laminated on the surfaces where the transparent substrates 11 and 12 are opposed to each other, color filters 16 and 17 and oriented films 18 and 19, and an adhesive spacer 21 is arranged between the orientation film 18 and the orientation film 19, and an interval between the transparent substrates 11 and 12 is kept constant. Liquid crystal 20 is filled in this liquid crystal cell 10, and the sealing materials 13 are formed of an elastic member. Thereby, expansion and contaction of the liquid crystal 20 can be absorbed by deformation of the sealing materials 13 while keeping the interval between the transparent substrates 11 and 12 constant.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal cell, and more particularly to a liquid crystal cell which absorbs expansion and contraction of liquid crystal due to temperature change and the like to enable good display.

[0002]

2. Description of the Related Art Recently, liquid crystal has been developed and researched, and a liquid crystal display device has been used as a display portion of a personal computer, a word processor or the like.

Conventionally, in such a liquid crystal display device, a liquid crystal cell 1 as shown in FIG. 7 is used, and the liquid crystal cell 1 sandwiches a sealing material 4 of a pair of transparent substrates 2 and 3 made of glass or the like. It is formed by being arranged in a state of facing each other. Transparent electrodes 5 and 6 made of ITO are formed on opposite surfaces of the transparent substrates 2 and 3, respectively, and the liquid crystal cell 1 uses the area where the transparent electrodes 5 and 6 are formed as a display area.

Alignment films 7 and 8 are formed so as to cover the transparent electrodes 5 and 6, respectively, and the alignment films 7 and 8 generally exhibit good alignment properties regardless of the type of liquid crystal. Polyimide is widely used.

As the sealing material 4, an inorganic material such as glass frit or an organic material such as epoxy, nylon or polyester resin is used, and the sealing material 4 does not have flexibility.

Then, the transparent substrates 2 and 3 and the sealing material 4
The liquid crystal 9 is filled in the closed chamber formed by.

When the liquid crystal cell 1 has a large area, a spacer (not shown) can be provided in the liquid crystal 9 because the thickness of the liquid crystal 9 layer cannot be kept constant only by the sealing material 4. By arranging them, the uniformity of 9 layers of liquid crystal is secured.

[0008]

However, in such a conventional liquid crystal cell 1, since the transparent substrates 2 and 3 are in a state in which the peripheries thereof are fixed by the inflexible sealing material 4, the liquid crystal When 9 expands / contracts due to temperature change or the like, the transparent substrates 2 and 3 whose peripheries are fixed by the sealing material 4 are deformed, and the electrodes 5 and 6 and the alignment films 7 and 8 are adversely affected, and the liquid crystal 9 layer The thickness varies and the display accuracy deteriorates. In particular, when the liquid crystal 9 contracts beyond the deformation limit of the transparent substrates 2 and 3, the volume reduction due to the contraction of the liquid crystal 9 cannot be covered by the deformation of the transparent substrates 2 and 3, and the liquid crystal 9 is not filled in the display area. There is a problem that the filled portion is formed in a strip shape or a linear shape in parallel with the layer direction of the liquid crystal 9.

Therefore, in order to prevent such an influence due to the temperature change of the liquid crystal, a buffer chamber having a larger gap than the liquid crystal layer is provided between the electrodes or the alignment film and the sealing material at the peripheral portion of the transparent substrate. It is also possible to form.

However, if the expansion and contraction of the liquid crystal due to temperature change is small by simply providing the buffer chamber, the expansion and contraction of the liquid crystal are absorbed to some extent by the buffer chamber, and the transparent substrate is deformed and the liquid crystal Although the generation of unfilled parts can be suppressed to a small level, when the temperature change is large, the expansion and contraction of the liquid crystal cannot be completely absorbed by the buffer chamber, and the transparent substrate moves in the separating direction, causing the distance between the liquid crystal layers to change. However, there is a problem that the display accuracy is deteriorated. In particular, in a liquid crystal cell applied to a personal computer, a word processor or the like, the operating temperature range is large and the liquid crystal area is large, so that the display accuracy is deteriorated due to the expansion and contraction of the liquid crystal.

The present invention has been made in view of the above problems, and prevents the deformation of the transparent substrate due to the expansion and contraction of the liquid crystal and the generation of the unfilled portion of the liquid crystal while keeping the distance between the transparent substrates constant. Then, it aims at providing the liquid crystal cell with favorable display performance.

[0012]

According to the present invention, a pair of substrates are provided to face each other with a sealing material provided at the periphery thereof sandwiched therebetween, and electrodes are provided inside each of the substrates.
In a liquid crystal cell in which liquid crystal is filled between the substrates, a holding member that holds the distance between the substrates constant is provided,
The above object is achieved by forming at least a part of the sealing material with a member having elasticity.

Further, according to the present invention, a pair of substrates are provided so as to face each other with a sealing material provided on the periphery thereof sandwiched therebetween, electrodes are arranged inside each of the substrates, and a liquid crystal is provided between the substrates. In a liquid crystal cell in which a display area is a filled area in which the electrodes are arranged, a holding member that holds the distance between the substrates constant is provided, and liquid crystal in the display area flows in and out, and the volume itself changes. The above-mentioned object is achieved by forming the buffer chamber outside the display area.

In this case, the buffer chamber is formed between the pair of substrates at least between a part of the outer peripheral portion of the display region and the sealing material, as described in claim 3. At least a part of the sealing material facing the buffer chamber may be deformed to allow the volume of the buffer chamber to change, and as described in claim 4, while being formed outside the sealing material, It may have a communication hole that allows the liquid crystal in the display area to flow in and out through the sealing material.

Further, the holding member may be, for example, as described in claim 5.
It may be an adhesive spacer encapsulated between the substrates, as described in claim 1, or, for example, a non-adhesive spacer encapsulated between the substrates as described in claim 6. And a lock member that restricts the movement of the substrate in the separating direction.

Further, for example, as described in claim 7, the sealing material is formed of a stretchable member and a non-stretchable member, and a portion formed by the non-stretchable member is at least the substrate. The pair of substrates may be connected to each other at positions opposite to each other at the peripheral portions of the above, and the holding member may be formed of the non-stretchable seal member.

[0017]

According to the present invention, since the holding member for holding the distance between the substrates of the liquid crystal cell constant is provided, and at least a part of the sealing material is formed of a stretchable member.
When the liquid crystal expands and contracts due to temperature changes, etc., the sealing member expands and
By expanding and contracting in the horizontal direction in accordance with the contraction, it is possible to absorb the expansion and contraction of the liquid crystal, prevent the deformation of the substrate, the electrodes, and the alignment film, and prevent the generation of the unfilled part of the liquid crystal. Therefore, the display performance of the liquid crystal cell can be improved without being affected by the expansion and contraction of the liquid crystal.

Further, according to the present invention, a holding member for holding the distance between the substrates constant is provided, and a buffer chamber in which the liquid crystal in the display area flows in and out and the volume itself changes is formed outside the display area. Therefore, even if the liquid crystal expands or contracts, the distance between the substrates is kept constant,
The expansion and contraction of the liquid crystal can be absorbed by the inflow and outflow of the liquid crystal into the buffer chamber and the volume change of the buffer chamber, and the deformation of the substrate, the electrode, and the alignment film can be prevented more effectively. As a result, the display performance of the liquid crystal cell can be further improved without being affected by the expansion and contraction of the liquid crystal.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a diagram showing a first embodiment of the liquid crystal cell of the present invention.

First, the configuration of this embodiment will be described.

In FIG. 1, a liquid crystal cell 10 has a pair of rectangular transparent substrates 11 and 12 formed of a member having a predetermined rigidity such as glass. The transparent substrate 11 and the transparent substrate 12 face each other. Are distributed.

A sealing material 13 is fixed to the outer peripheral ends of the surfaces of the transparent substrate 11 and the transparent substrate 12 which face each other. The transparent members 11 and 12 and the sealing material 13 form a closed chamber inside thereof. Has been done. The sealing material 13 is made of a material having a predetermined elasticity, for example, Polymide LP-64 manufactured by Toray Co., Ltd. or a silicone resin (JCR-G126) manufactured by Toray Silicone Co., Ltd. Have sex.

Transparent electrodes 14 and 15, color filters 16 and 17 and alignment films 18 and 19 are sequentially laminated on the surfaces of the transparent substrates 11 and 12 which face each other. The liquid crystal 20 is filled in the closed chamber formed by the seal member 13, and the alignment film 1
8 and the alignment film 19 form a liquid crystal layer.

Further, between the alignment film 18 and the alignment film 19,
The transparent spacer 11 is provided with the adhesive type spacer 21.
The movement of the transparent substrate 12 in the vertical direction in FIG. 1 is restricted by the spacer 21 which is bonded and arranged between the alignment films 18 and 19. Therefore, this adhesive type spacer 21
Serves as a holding member that holds the transparent substrate 11 and the transparent substrate 12 at a constant interval.

Next, the operation of this embodiment will be described.

The liquid crystal cell 10 is used within a predetermined operating temperature range, and the liquid crystal 20 expands when used on the high temperature side within the operating temperature range and contracts when used on the low temperature side.

However, in the liquid crystal cell 10 of this embodiment, the sealing material 13 is formed of a member having a predetermined elasticity, and the alignment film 18 and the alignment film 19 are bonded by the adhesive type spacer 21. The spacer 21 keeps the distance between the transparent substrate 11 and the transparent substrate 12 constant.

Therefore, when the liquid crystal 20 expands due to temperature rise or the like, the distance between the transparent substrate 11 and the transparent substrate 12 is kept constant by the adhesive type spacer 21, and the distance between the transparent substrate 11 and the transparent substrate 12 is kept. Without expanding, the sealing material 13 deforms outward as the liquid crystal 20 expands, as shown by the broken line in FIG.

As a result, the liquid crystal cell 10 absorbs the expansion of the liquid crystal 20 due to temperature rise and the like by the deformation of the elastic sealing material 13 while keeping the distance between the liquid crystal layers constant, and the transparent substrates 11, 12 and The deformation of the alignment films 18, 19 and the like can be effectively prevented, and the display performance of the liquid crystal cell 10 can be improved.

When the liquid crystal 20 contracts, the transparent substrate 11 and the transparent substrate 12 are held by the adhesive type spacer 21 so that the distance between them is maintained.
The sealing material 13 prevents the liquid crystal 20 from being widened.
Deforms inward according to the contraction of.

As a result, the liquid crystal cell 10 absorbs the contraction of the liquid crystal 20 due to the temperature decrease and the like by the volume change due to the deformation of the elastic sealing material 13, and the transparent substrates 11, 12 and the alignment films 18, 19 and the like. The deformation can be effectively prevented, the generation of the unfilled portion of the liquid crystal can be further prevented, and the display performance of the liquid crystal cell 10 can be improved.

2 and 3 show a second embodiment of the liquid crystal cell of the present invention.
It is a figure which shows an Example.

In FIG. 2, the liquid crystal cell 30 has a pair of transparent substrates 31 and 32 arranged to face each other, and these transparent substrates 31 and 32 are larger than the display area by a predetermined size. Is used.

A sealing material 33 is fixed to the outer peripheral ends of the surfaces of the transparent substrate 31 and the transparent substrate 32 which face each other, and the transparent member 31, 32 and the sealing material 33 form a sealed chamber therein. Has been done. The sealing material 33 is made of a material having a predetermined elasticity, for example, Polymide LP-64 manufactured by Toray Co., Ltd. or silicon resin (JCR-G126) manufactured by Toray Silicone Co., Ltd. have.

On the surfaces of the transparent substrate 31 and the transparent substrate 32 which face each other, transparent electrodes 34 and 3 are provided at the central portions thereof, respectively.
5, the color filters 36 and 37, and the alignment films 38 and 39 are sequentially laminated, and between the transparent electrodes 34 and 35, the color filters 36 and 37 and the alignment films 38 and 39, and the seal member 33. Are spaced at predetermined intervals as shown in FIGS. 2 and 3.

A liquid crystal 40 is filled in the closed chamber formed by the transparent substrates 31 and 32 and the seal member 33, and a liquid crystal layer is formed between the alignment films 38 and 39.

Therefore, the alignment films 38 and 39 are provided between the transparent electrodes 34 and 35, the color filters 36 and 37, the outer peripheral portions of the alignment films 38 and 39 and the sealing material 33, and between the transparent substrates 31 and 32. A buffer chamber 41 is formed that is wider than the liquid crystal layer formed therebetween.

Further, between the alignment film 38 and the alignment film 39,
The transparent spacer 31 is provided with the adhesive type spacer 42.
The movement of the transparent substrate 32 in the vertical direction in FIG. 2 is restricted by the spacer 42 arranged between the alignment films 38 and 39.

Next, the operation of this embodiment will be described.

The liquid crystal cell 30 of this embodiment has a transparent electrode 3
4, 35, color filters 36 and 37, and an alignment film 38,
Between the outer periphery of the laminated layers of 39 and the sealing material 33,
In addition, a buffer chamber 41 having a wider space between the transparent substrates 31 and 32 than the layer of the liquid crystal 40 formed between the alignment films 38 and 39.
And the sealing material 33 is formed of a member having a predetermined elasticity. The alignment film 38 and the alignment film 39 are adhered to each other by an adhesive spacer 42, and the spacer 42 holds the transparent substrate 31 and the transparent substrate 32 at a constant distance.

Therefore, when the liquid crystal 40 expands, the operating temperature does not rise so much, and the liquid crystal 40 expands little, the transparent substrate 31 and the transparent substrate 32 are separated from each other by the adhesive spacer 42. Since the liquid crystal 40 is held, the expanded liquid crystal 40 has a large volume in the buffer chamber 41 without the space between the transparent substrate 31 and the transparent substrate 32 expanding.
It is possible to prevent the transparent substrates 31 and 32, the alignment films 38 and 39, and the like from being deformed. When the operating temperature further rises and the liquid crystal 40 expands greatly, the buffer chamber 4
1, the expansion of the liquid crystal 40 cannot be absorbed completely, but while the gap between the transparent substrate 31 and the transparent substrate 32 is kept constant by the spacer 42, the sealing material 33 is the liquid crystal as shown by the broken line in FIG. It deforms outward in accordance with the expansion of 40, and the volume of the buffer chamber 41 changes in accordance with the expansion of the liquid crystal 40.

As a result, the liquid crystal cell 30 has a transparent substrate 31.
While keeping the distance between the transparent substrate 32 and the transparent substrate 32, that is, the distance between the liquid crystal layers, the expansion of the liquid crystal 40 due to temperature rise is absorbed by the buffer chamber 41 having a large volume, and the elastic sealing material 33 is deformed. The change in the volume of the buffer chamber 41 due to the absorption can be absorbed, and the deformation of the transparent substrates 31, 32 and the alignment films 38, 39, etc. can be effectively prevented, and the display performance of the liquid crystal cell 30 can be improved.

When the liquid crystal 40 contracts,
When the decrease in the operating temperature is not so large and the liquid crystal 40 shrinks little, the distance between the transparent substrate 31 and the transparent substrate 32 is held by the adhesive spacer 42, so that the transparent substrate 31 and the transparent substrate 32 are separated from each other. Without reducing the distance
It is possible to prevent the contracted liquid crystal 40 from being absorbed in the buffer chamber 41 having a large volume and deforming the transparent substrates 31, 32, the alignment films 38, 39, and the like. When the operating temperature further decreases and the shrinkage of the liquid crystal 40 is large, the shrinkage of the liquid crystal 40 cannot be absorbed by the buffer chamber 41 alone, but the transparent substrate 3
While keeping the distance between 1 and the transparent substrate 32 constant by the spacer 42, the sealing material 33 deforms inward according to the contraction of the liquid crystal 40, and the volume of the buffer chamber 41 changes according to the contraction of the liquid crystal 40. .

As a result, the liquid crystal cell 30 has the transparent substrate 31.
While keeping the distance between the transparent substrate 32 and the transparent substrate 32 constant, that is, the distance between the liquid crystal layers, the buffer chamber 41 having a large volume absorbs the contraction of the liquid crystal 40 due to the temperature decrease and the elastic sealing material 33 is deformed. It is possible to effectively prevent the deformation of the transparent substrates 31, 32, the alignment films 38, 39, etc. by absorbing the volume change of the buffer chamber 41 due to the above, and to further prevent the generation of the unfilled portion of the liquid crystal. Therefore, the display performance of the liquid crystal cell 30 can be improved.

FIG. 4 is a diagram showing a third embodiment of the liquid crystal cell of the present invention.

This embodiment is applied to a liquid crystal cell similar to that of the second embodiment, but limits the part where the buffer chamber is formed.

Therefore, in the description of the present embodiment, the same components as those of the second embodiment will be designated by the same reference numerals and the description thereof will be omitted.

4, the liquid crystal cell 50 includes transparent electrodes 34, 35, color filters 36, 37 and alignment films 38, 39 laminated on the transparent substrates 31, 32, respectively.
There is a predetermined gap between the end portion in the left-right direction of the and the sealing material 33, and the transparent electrodes 34, 35, the color filters 36, 37
A buffer chamber 51 is formed between the transparent substrates 31 and 32 and between the layers of the alignment films 38 and 39 and the left and right sealing materials 33.

However, in the liquid crystal cell 50, the ends of the transparent electrodes 34, 35, the color filters 36, 37 and the alignment films 38, 39 laminated on the transparent substrates 31, 32 in the vertical direction in FIG. 4 are sealed. It is in close contact with the material 33, and no buffer chamber is formed in the vertical direction in FIG. That is, the buffer chamber 51 is formed only in the left-right direction of FIG. 4, and the elastic seal material 33 faces the buffer chamber 51.

Therefore, also in this embodiment, the liquid crystal cell 50 has the buffer chamber 51 having a large volume while keeping the distance between the transparent substrate 31 and the transparent substrate 32 constant due to the expansion and contraction of the liquid crystal 40 due to the temperature change and the like. In addition to absorbing, the volume change of the buffer chamber 51 due to the deformation of the elastic sealing material 33 is absorbed, and the deformation of the transparent substrates 31, 32, the alignment films 38, 39, etc. can be effectively prevented.

FIG. 5 is a diagram showing a fourth embodiment of the liquid crystal cell of the present invention.

This embodiment is applied to a liquid crystal cell similar to that of the second embodiment, but an elastic member is used only for a part of the seal member.

Therefore, in the description of this embodiment, the same components as those of the second embodiment will be designated by the same reference numerals and the description thereof will be omitted.

In FIG. 5, the liquid crystal cell 60 has a seal member 61 formed of a non-elastic member used in a general liquid crystal cell. The seal member 61 faces the seal member 61 in the second embodiment. A buffer chamber 41 is formed as in the example. The buffer chamber 41 does not have to be formed at a position facing all the seal members 61 as in the second embodiment. For example, as shown in the third embodiment, the buffer chamber 41 is buffered only on both sides in one direction. The chamber 41 may be formed, or the same effect can be obtained without forming the buffer chamber.

The seal member 61 facing the buffer chamber 41 has a seal member 62 partially elastic.
The elastic seal member 62 is surrounded by the elastic seal member 61. The formation area of the elastic seal member 62 is determined by the operating temperature range of the liquid crystal cell 60 and the buffer chamber 4.
Considering the capacity of 1 and the like, the liquid crystal 40 is formed to have a size capable of absorbing expansion and contraction.

Therefore, the transparent substrate 31 and the transparent substrate 32
Means that the adhesive spacers 42 keep the distance constant, and the inelastic seal member 61 keeps the distance constant.
The inelastic seal member 61 functions as a holding member that holds the distance between the transparent substrate 31 and the transparent substrate 32 constant.

Also in this embodiment, when the liquid crystal 40 expands or contracts due to temperature change or the like, the transparent substrates 31 and 32 are used.
The expansion and contraction of the liquid crystal 40 can be absorbed by the buffer chamber 41 while the space between the buffer chambers is kept constant, and can be absorbed by the capacity change of the buffer chamber 41 due to the deformation of the elastic seal member 62. The deformation of the transparent substrates 31, 32, the alignment films 38, 39, etc. can be effectively prevented.

FIG. 6 is a diagram showing a fifth embodiment of the liquid crystal cell of the present invention.

This embodiment is applied to a liquid crystal cell similar to that of the second embodiment, except that a buffer chamber whose capacity can be changed is formed outside the seal member.

Therefore, in the description of the present embodiment, the same components as those of the second embodiment will be designated by the same reference numerals and the description thereof will be omitted.

In FIG. 6, a liquid crystal cell 70 has a seal member 71 formed of a member having no elasticity used in a general liquid crystal cell, and one seal member 71 is provided outside the seal member 71. A second buffer chamber 72 is provided.

The second buffer chamber 72 is formed of a bag member 73 having a predetermined elasticity, for example, a silicon tube or the like, and the bag member 73 is held by a holding member 74 formed in a substantially box shape. There is. The holding member 74 has a vent hole 75 formed in the upper surface thereof, and holds the second buffer chamber 72 in a variable capacity.

The second buffer chamber 72 is communicated with the buffer chamber 41 by a communication pipe 76 penetrating the seal member 71.
A predetermined amount of liquid crystal is filled in the buffer chamber 72.

Therefore, according to this embodiment, when the liquid crystal 40 expands / contracts due to temperature change or the like, the buffer chamber 41 is maintained while keeping the space between the transparent substrate 31 and the transparent substrate 32 constant.
Absorbs the expansion and contraction of the liquid crystal 40, and when the expansion and contraction of the liquid crystal 40 is large, the liquid crystal 40 flows into and out of the second buffer chamber 72 through the communication tube 76, and the liquid crystal 40 in the liquid crystal cell 70 Absorbs expansion and contraction.

As a result, even if the liquid crystal 40 greatly expands or contracts, the second buffer chamber 72 effectively absorbs the large expansion or contraction of the liquid crystal 40 while keeping the distance between the liquid crystal 40 layers constant. Therefore, the deformation of the transparent substrates 31, 32 and the alignment films 38, 39, etc. can be prevented more effectively, the display performance of the liquid crystal cell 70 can be further improved, and the liquid crystal is not filled. It is possible to further prevent the occurrence of a portion and further improve the yield as a product.

In the fifth embodiment, the buffer chamber 41 is provided in the liquid crystal cell 70 and the liquid crystal cell 70 is used.
Although the second buffer chamber 72 is provided outside, the present invention is not limited to this. In particular, the above effect can be sufficiently obtained without the buffer chamber 41 in the liquid crystal cell 70.

Further, in the fifth embodiment, the holding member 74 for holding the bag member 73 forming the second buffer chamber 72.
Although the vent hole 75 is formed in the above, the vent hole 75 may be covered with an elastic member in order to further prevent deterioration of the liquid crystal in the second buffer chamber 72.

In each of the above embodiments, the adhesive type spacers 21 and 42 are used as the holding members.
The holding member is not limited to this, for example,
Adhesive spacers having a larger diameter than the spacers in the liquid crystal layer may be arranged in the buffer chamber 41 or the buffer chamber 51, and the transparent substrates 11 and 31 and the transparent substrate 12 are provided outside the liquid crystal cells 10 and 30. , 32, holding the outer peripheral ends of the transparent substrates 11, 31.
The distance between the transparent substrates 12 and 32 may be kept constant.

[0070]

According to the present invention, while the distance between the transparent substrates of the liquid crystal cell, that is, the distance between the liquid crystal layers is kept constant, the expansion and contraction due to the temperature change of the liquid crystal is prevented by the lateral deformation of the seal member. Since it absorbs, it is possible to prevent the deformation of the substrate and the like even when the liquid crystal expands and contracts, and it is possible to prevent the unfilled part of the liquid crystal from occurring, and the display performance of the liquid crystal cell is excellent. Can be

Further, while keeping the distance between the transparent substrates of the liquid crystal cell constant, the expansion and contraction of the liquid crystal is absorbed by the inflow and outflow of the liquid crystal into the buffer chamber and the volume change of the buffer chamber. Even if the shrinkage occurs, it is possible to more effectively prevent the deformation of the substrate, the electrodes and the alignment film and the generation of the unfilled portion of the liquid crystal, and further improve the display performance of the liquid crystal cell. it can.

[Brief description of drawings]

FIG. 1 is a front sectional view of a first embodiment of a liquid crystal cell of the present invention.

FIG. 2 is a front sectional view of a second embodiment of the liquid crystal cell of the present invention.

FIG. 3 is a sectional view taken along the line III-III in FIG.

FIG. 4 is a cross-sectional top view of a third embodiment of the liquid crystal cell of the present invention.

FIG. 5 is a front sectional view of a liquid crystal cell according to a fourth embodiment of the present invention.

FIG. 6 is a front sectional view of a fifth embodiment of the liquid crystal cell of the present invention.

FIG. 7 is a partial front sectional view of a conventional liquid crystal cell.

[Explanation of symbols]

 10, 30, 50, 70 Liquid crystal cell 11, 12, 31, 32 Transparent electrode 13, 33, 61, 62, 71 Seal member 14, 15, 34, 35 Transparent electrode 16, 17, 36, 37 Color filter 18, 19 , 38, 39 Alignment film 20, 40 Liquid crystal 41, 51 Buffer chamber 72 Second buffer chamber 73 Bag member 74 Holding member 75 Vent hole 76 Communication tube

Claims (7)

[Claims] 1. A liquid crystal in which a pair of substrates are provided so as to face each other with a sealing material provided on the periphery thereof sandwiched therebetween, electrodes are provided inside each of the substrates, and liquid crystal is filled between the substrates. In the cell, a holding member for holding the space between the substrates constant is provided, and at least a part of the sealing material is formed of an elastic member. 2. A pair of substrates are provided so as to face each other with a sealing material provided on the periphery thereof sandwiched therebetween, electrodes are arranged inside each of the substrates, and liquid crystal is filled between the substrates.
In a liquid crystal cell having a region where the electrodes are arranged as a display region, a holding member that holds the substrate at a constant interval is provided, and a buffer chamber in which the liquid crystal in the display region flows in and out and itself changes in volume is provided. A liquid crystal cell formed outside the display area. 3. The buffer chamber is formed between the pair of substrates at least between a part of an outer peripheral portion of the display area and the sealing material located on the outer peripheral portion, and faces the buffer chamber. 3. The liquid crystal cell according to claim 2, wherein at least a part of the sealing material is deformed to change the volume of the buffer chamber. 4. The buffer chamber is formed outside the sealing material, and has a communication hole that penetrates the sealing material and allows the liquid crystal in the display area to flow in and out. 2. The liquid crystal cell according to item 2. 5. The liquid crystal cell according to claim 1, wherein the holding member is an adhesive spacer enclosed between the substrates. 6. The holding member is composed of a non-adhesive spacer enclosed between the substrates and a lock member for restricting movement of the substrate in a separating direction. The liquid crystal cell according to any one of claims 1 to 4. 7. The sealing material is formed of a stretchable member and a non-stretchable member, and the portions formed by the non-stretchable member are at least opposed to each other at a peripheral portion of the substrate. 5. The liquid crystal cell according to any one of claims 1 to 4, wherein the substrates are connected to each other, and the holding member is composed of the non-stretchable seal member.