JP6094916B1 - Liquid crystal cell - Google Patents

Abstract

Provided is a liquid crystal cell capable of maintaining an electrical connection between a conductive portion such as an FPC and an electrode even when the dimension of a polarizing element changes. A liquid crystal cell includes a first electrode base layer (first electrode) and a second electrode base layer (second electrode) disposed between a first polarizing element and a second polarizing element. 2 electrodes 16), the first alignment film 17 and the second alignment film 18 disposed between the first electrode substrate layer 21 and the second electrode substrate layer 22, and the first alignment film 17 and the second alignment film. A liquid crystal layer 19 disposed between the film 18 and a seal portion 38 disposed adjacent to the liquid crystal layer 19 are provided. On the opposite side of the liquid crystal layer 19 through the seal portion 38, the first electrode 15 has a first exposed electrode portion 15b that is not covered with the first alignment film 17, and the second electrode 16 has a second alignment. The second exposed electrode portion 16 b is not covered with the film 18. The second exposed electrode portion 16b is disposed at a position not facing the first exposed electrode portion 15b. [Selection] Figure 3

Description

  The present invention relates to a liquid crystal cell including an electrode to which a conductive part such as an FPC is connected and a polarizing element (polarizing plate).

  There is known a liquid crystal cell that includes a polarizing plate, an electrode, and a liquid crystal layer and that can change the light transmittance by adjusting the orientation of the liquid crystal layer. In such a liquid crystal cell, the light transmittance is controlled by adjusting the voltage applied between the electrodes sandwiching the liquid crystal layer through a conductive part such as FPC (Flexible Printed Circuits).

  Controlling the orientation of the liquid crystal layer by adjusting the voltage applied between the electrodes is widely performed in an optical device including “a liquid crystal layer, an electrode and a polarizing plate”. For example, a liquid crystal display device disclosed in Patent Document 1 The same control method is also adopted in FIG.

JP 2002-214626 A

  As described above, the voltage adjustment between the electrodes in the liquid crystal cell is generally performed via a conductive portion such as an FPC. FPCs are very thin and light, and have excellent flexibility and bending characteristics. Therefore, they can be arranged in a shape according to the installation space, and not only large electronic devices but also small electronic devices and thin electronic devices. It is also used in equipment. When the FPC is applied to a sheet-like liquid crystal cell configured by stacking a plurality of layers, the FPC and the electrode are physically and electrically connected through a connection portion such as a silver paste.

  By the way, in the field of liquid crystal panels having a planar structure, a glass substrate having excellent rigidity is often used as a substrate for supporting the electrodes of the liquid crystal cell. In the field of optical devices and the like, a resin base material having a high flexibility may be used. The resin base material can be deformed into various shapes and is deformed together with other layers such as a polarizing plate.

  On the other hand, the size of a polarizing plate that is often made by stretching a polymer film is likely to vary depending on the use situation. For example, in a high-temperature environment, a low-temperature environment, or a high-humidity environment, the polarizing plate may change in units of millimeters as compared with the case where it is used at a normal temperature and humidity. May behave differently than members. As described above, when the size of the polarizing plate varies depending on the use state, stress (particularly shear stress) acts on the substrate and the electrode fixed directly or indirectly to the polarizing plate. In particular, when a low-rigidity resin base material is used, the dimensional change of the polarizing plate greatly affects the electrode through the resin base material.

  Thus, although the dimensional change of the polarizing plate also affects the base material and the electrode, the influence of the dimensional change of the polarizing plate is hardly exerted on the FPC connected to the electrode through a connecting portion such as a silver paste. Therefore, when the size of the polarizing plate changes, the relative positional relationship changes between the FPC and the electrode, an unintended force acts on the connection portion, and the electrode is peeled off from the FPC. Connection failure may occur.

  In particular, a normal FPC is arranged between a pair of electrodes, and each electrode is connected to an electric circuit formed on each of the front surface side and the back surface side of the FPC. When the parts are arranged at positions facing each other, an electrical connection failure is likely to occur between the electrode and the FPC. That is, when the FPC front-side connection part and the back-side connection part are arranged at positions facing each other, both connection parts are supported by the same portion of the support parts arranged between the two connection parts. Therefore, the fluctuation of both connection parts is transmitted to the same part of the support part. Therefore, when the relative positional relationship between one electrode and one connecting portion varies and the relative positional relationship between the other electrode and the other connecting portion varies, Variations in the relative positional relationship directly affect each other, and stress acts in a complicated direction, which further promotes peeling and poor electrical connection between the FPC and the electrode.

  For example, in the liquid crystal display device disclosed in Patent Document 1, a scanning line driving circuit and a signal line driving circuit are formed in substantially the central part of each side part that forms the periphery of two substrates, and a connection part with these circuits. Is provided. Since the connection portion is arranged so as to face each other between the substrates, if the size of the polarizing plate changes according to the use environment, a force (shear stress) acts on the connection portion in an unexpected direction, and the scanning line driving circuit In addition, an electrical connection failure to the signal line driver circuit may occur.

  The present invention has been made in view of the above circumstances, and provides a liquid crystal cell capable of maintaining an electrical connection between a conductive part such as an FPC and an electrode even when the dimensions of the polarizing element change. The purpose is to do.

  One embodiment of the present invention includes a first polarizing element and a second polarizing element, and a first electrode base layer and a second polarizing element that are disposed on the first polarizing element side between the first polarizing element and the second polarizing element. A second electrode base material layer disposed on the element side, the first electrode base material layer having a first resin base material and a first electrode fixed to the first resin base material; Between the second electrode substrate layer having a resin substrate and a second electrode fixed to the second resin substrate, and between the first electrode substrate layer and the second electrode substrate layer, the first A first alignment film disposed on the electrode substrate layer side and a second alignment film disposed on the second electrode substrate layer side; a liquid crystal layer disposed between the first alignment film and the second alignment film; A seal portion disposed adjacent to the liquid crystal layer between the first alignment film and the second alignment film, and the first electrode is disposed on the opposite side of the liquid crystal layer via the seal portion. The second exposed electrode portion is not covered with the first alignment film, and the second electrode is located at a position that does not face the first exposed electrode portion on the side opposite to the liquid crystal layer through the seal portion. The present invention relates to a liquid crystal cell having a second exposed electrode portion that is not covered with a bi-alignment film.

  Another aspect of the present invention includes a first polarizing element and a second polarizing element, and a first electrode base layer and a second electrode disposed on the first polarizing element side between the first polarizing element and the second polarizing element. A first electrode substrate layer disposed on the polarizing element side, the first electrode substrate layer having a first resin substrate and a first electrode fixed to the first resin substrate; A second electrode substrate layer having a second resin substrate and a second electrode fixed to the second resin substrate; and between the first electrode substrate layer and the second electrode substrate layer, A first alignment film disposed on one electrode substrate layer side, a second alignment film disposed on the second electrode substrate layer side, and a liquid crystal layer disposed between the first alignment film and the second alignment film And a seal portion disposed adjacent to the liquid crystal layer between the first alignment film and the second alignment film, wherein at least a part of the seal portion includes the first polarizing element and the first alignment element. The first electrode has a first exposed electrode portion that is not covered with the first alignment film on the side opposite to the liquid crystal layer through the seal portion, and is not covered by the polarizing element, The present invention relates to a liquid crystal cell having a second exposed electrode portion that is not covered with a second alignment film on the side opposite to the liquid crystal layer via a seal portion.

  Another aspect of the present invention includes a first polarizing element and a second polarizing element, and a first electrode base layer and a second electrode disposed on the first polarizing element side between the first polarizing element and the second polarizing element. A first electrode substrate layer disposed on the polarizing element side, the first electrode substrate layer having a first resin substrate and a first electrode fixed to the first resin substrate; A second electrode substrate layer having a second resin substrate and a second electrode fixed to the second resin substrate; and between the first electrode substrate layer and the second electrode substrate layer, A first alignment film disposed on one electrode substrate layer side, a second alignment film disposed on the second electrode substrate layer side, and a liquid crystal layer disposed between the first alignment film and the second alignment film And a seal portion disposed between the liquid crystal layer and the conductive portion between the first alignment film and the second alignment film, and disposed between the first electrode substrate layer and the second electrode substrate layer. Lead A conductive portion having a first connection portion electrically connected to the first electrode and a second connection portion electrically connected to the second electrode; 1 electrode has the 1st exposure electrode part which is the 1st exposure electrode part which is not covered with the 1st alignment film on the opposite side to a liquid crystal layer through a seal part, and the 1st connection part is connected. The second electrode is a second exposed electrode portion that is not covered with the second alignment film on the side opposite to the liquid crystal layer through the seal portion, and is connected to the second connection portion. And a liquid crystal cell that is provided separately from the first connection portion and the second connection portion of the conductive portion.

  The 1st electrode base material layer may have the 1st projection part which is not covered with the 1st polarizing element, and the 1st exposure electrode part may constitute at least a part of the surface of the 1st projection part.

  The 2nd electrode base material layer may have the 2nd projection part which is not covered with the 2nd polarizing element, and the 2nd exposure electrode part may constitute at least a part of the surface of the 2nd projection part.

  The first protrusion may not face the second protrusion.

  According to the present invention, by providing the first exposed electrode portion and the second exposed electrode portion at positions that do not face each other, even if the conductive portion is connected to the first exposed electrode portion and the second exposed electrode portion, the conductive portion The first exposed electrode part and the second exposed electrode part are connected to different locations. Therefore, even if the first exposed electrode portion and the second exposed electrode portion fluctuate with the dimensional change of the polarizing element, the influence of the fluctuation of the first exposed electrode portion and the second exposed electrode portion is directly affected by the same portion of the conductive portion. Without being received, the electrical connection between the conductive portion and the electrode portion can be effectively maintained.

  According to the invention, at least a part of the seal portion is not covered with the first polarizing element and the second polarizing element, so that the first exposed electrode portion disposed on the opposite side of the liquid crystal layer via the seal portion and The second exposed electrode part is inevitably not covered by the first polarizing element and the second polarizing element. Therefore, the first exposed electrode portion and the second exposed electrode portion are not easily affected by the dimensional change of the first polarizing element and the second polarizing element, respectively. The electrical connection between the part (first connection part and second connection part) and the electrode (first exposed electrode part and second exposed electrode part) can be effectively maintained.

  Further, according to the present invention, by providing the first connection portion and the second connection portion of the conductive portion as separate bodies, the dimension of the first polarizing element changes, and the first electrode (first exposed electrode portion) and the first connection portion Even if a variation occurs in one connection portion, such a variation does not directly affect the connection between the second electrode (second exposed electrode portion) and the second connection portion. Similarly, even if the dimension of the second polarizing element is changed to cause fluctuations in the second electrode (second exposed electrode part) and the second connection part, such fluctuations are caused by the first electrode (first exposed electrode). Part) and the first connection part is not directly affected. Therefore, even if the dimensions of the first polarizing element and the second polarizing element change, the gap between the conductive part (first connecting part and second connecting part) and the electrode (first exposed electrode part and second exposed electrode part) It is possible to effectively maintain the electrical connection.

FIG. 1 is a cross-sectional view schematically showing an example of a layer structure of a liquid crystal cell. 2 is a cross-sectional view illustrating an example of a specific configuration of each layer illustrated in FIG. 1, (a) illustrates a specific configuration example of the first polarizing element, and (b) illustrates a first electrode base material layer. (C) shows a specific configuration example of the first alignment film, the liquid crystal layer and the second alignment film, and (d) shows a specific configuration example of the second electrode substrate layer. (E) shows a specific configuration example of the second polarizing element. FIG. 3 is a cross-sectional view showing a part of the liquid crystal cell according to the first embodiment. FIG. 4 is a cross-sectional view showing a part of the liquid crystal cell according to the second embodiment. FIG. 5 is a cross-sectional view showing a part of the liquid crystal cell according to the third embodiment. FIG. 6 is a cross-sectional view showing a modification of the liquid crystal cell of the third embodiment. FIG. 7 is a cross-sectional view showing a part of the liquid crystal cell according to the fourth embodiment. FIG. 8 is a cross-sectional view showing a part of the liquid crystal cell according to the fifth embodiment. FIG. 9 is a plan view schematically showing the liquid crystal cell according to the sixth embodiment. FIG. 10 is a cross-sectional view of the liquid crystal cell along the cross-sectional line XX of FIG. FIG. 11 is a cross-sectional view of the liquid crystal cell along the cross-sectional line XI-XI in FIG. FIG. 12 is a cross-sectional view of the liquid crystal cell along the cross-sectional line XII-XII in FIG. FIG. 13 is a plan view schematically showing the liquid crystal cell according to the seventh embodiment. FIG. 14 is a cross-sectional view of the liquid crystal cell along the cross-sectional line XIV-XIV in FIG. FIG. 15 is a cross-sectional view showing a part of the liquid crystal cell according to the eighth embodiment. FIG. 16 is a cross-sectional view showing a modification of the liquid crystal cell according to the eighth embodiment. FIG. 17 is a cross-sectional view showing a part of the liquid crystal cell according to the ninth embodiment.

  Embodiments of the present invention will be described with reference to the drawings. In each drawing attached to the present specification, for convenience of illustration and understanding, the scale and vertical / horizontal dimension ratio of each element are appropriately changed and exaggerated as necessary from the actual ones. . Accordingly, although dimensions, size ratios, and the like do not necessarily match between the drawings, those skilled in the art can fully understand each element of each drawing in consideration of the description of the present specification.

  FIG. 1 is a cross-sectional view schematically showing an example of the layer structure of the liquid crystal cell 10. FIG. 1 shows only a part near the center of the liquid crystal cell 10.

  The liquid crystal cell 10 of this example includes a layered first polarizing element 11, first resin base material 13, first electrode 15, first alignment film 17, liquid crystal layer 19, second alignment film 18, and second stacked one after another. The electrode 16, the second resin base material 14, and the second polarizing element 12 are provided.

  Between the 1st polarizing element 11 and the 2nd polarizing element 12, the 1st electrode base material layer 21 arrange | positioned at the 1st polarizing element 11 side, and the 2nd electrode group arrange | positioned at the 2nd polarizing element 12 side. A material layer 22 is provided. The first electrode base material layer 21 includes a first resin base material 13 and a first electrode 15 fixed to the first resin base material 13. The second electrode base material layer 22 includes the second resin base material 14 and the second electrode 16 fixed to the second resin base material 14.

  The first electrode 15 and the second electrode 16 are formed as transparent electrodes from various materials such as ITO (Indium Tin Oxide), and are formed of a conductive portion (reference numeral “43” in FIG. And the voltage is applied. The arrangement | positioning aspect of the 1st electrode 15 and the 2nd electrode 16 is not specifically limited, An electrode may be arrange | positioned only by the predetermined location by patterning formation, and an electrode may be arrange | positioned at solid form. Depending on the voltage applied to the first electrode 15 and the second electrode 16, the electric field acting on the liquid crystal layer 19 disposed between the first electrode 15 and the second electrode 16 changes, thereby forming the liquid crystal layer 19. The alignment of the liquid crystal molecules is adjusted.

  Between the 1st electrode base material layer 21 and the 2nd electrode base material layer 22, it arrange | positions at the 1st alignment film 17 arrange | positioned at the 1st electrode base material layer 21 side, and the 2nd electrode base material layer 22 side. The second alignment film 18 is disposed. The manufacturing method of the 1st alignment film 17 and the 2nd alignment film 18 is not specifically limited, The 1st alignment film 17 and the 2nd alignment film 18 which have liquid crystal aligning ability can be made with arbitrary methods. For example, the first alignment film 17 and the second alignment film 18 may be formed by performing a rubbing process on a resin layer such as polyimide, or the polymer film is irradiated with linearly polarized ultraviolet rays to increase the polarization direction. The first alignment film 17 and the second alignment film 18 may be formed based on a photo-alignment method in which molecular chains are selectively reacted. The arrangement | positioning aspect of the 1st alignment film 17 and the 2nd alignment film 18 is not specifically limited, An alignment film may be arrange | positioned only by the predetermined location by patterning formation, and an alignment film may be arrange | positioned at solid form.

  The first alignment film 17 and the second alignment film 18 are provided integrally with the first electrode substrate layer 21 and the second electrode substrate layer 22, respectively. The first alignment film 17 is the first alignment layer 17 of the first electrode substrate layer 21. The second alignment film 18 is fixedly provided with respect to the second electrode 16 of the second electrode base material layer 22. In the following description, the first electrode substrate layer 21 (the first resin substrate 13 and the first electrode 15) and the first alignment film 17 are collectively referred to as the first electrode substrate alignment layer 23, and the second electrode substrate The material layer 22 (the second resin base material 14 and the second electrode 16) and the second alignment film 18 are collectively referred to as a second electrode base material alignment layer 24.

  A liquid crystal layer 19 is disposed between the first alignment film 17 and the second alignment film 18. The driving method of the liquid crystal layer 19 is not particularly limited. Typically, a VA (Vertical Alignment) method, a TN (Twisted Nematic) method, an IPS (In Plane Switching) method, or an application method of these methods is known. Yes.

  2 is a cross-sectional view showing an example of a specific configuration of each layer shown in FIG. 1, in which (a) shows a specific configuration example of the first polarizing element 11, and (b) shows a first electrode substrate. A specific configuration example of the layer 21 is shown, (c) shows a specific configuration example of the first alignment film 17, the liquid crystal layer 19 and the second alignment film 18, and (d) shows the second electrode substrate layer 22. (E) shows a specific configuration example of the second polarizing element 12.

  The 1st polarizing element 11 has the polarizing layer 31, and the adhesion layer 32 arrange | positioned between the said polarizing layer 31 and the 1st electrode base material layer 21 (refer Fig.2 (a)). The 2nd polarizing element 12 has the polarizing layer 31, and the adhesion layer 32 arrange | positioned between the said polarizing layer 31 and the 2nd electrode base material layer 22 (refer FIG.2 (e)). The polarizing layer 31 is made of a member that performs a desired polarizing function, and is typically made by stretching PVA (polyvinyl alcohol) doped with an iodine compound. In general, when the polarizing layer 31 is formed by stretching, the absorption axis of the polarizing layer 31 is determined according to the stretching direction, and the polarizing layers 31 stretched in the same direction have absorption axes in the same direction. As an arrangement mode of the polarizing layers 31 provided in pairs in the first polarizing element 11 and the second polarizing element 12, the absorption axis of the polarizing layer 31 of the first polarizing element 11 and the polarizing layer 31 of the second polarizing element 12 are arranged. An aspect called “parallel Nicol” in which the absorption axes are parallel to each other and “cross” in which the absorption axis of the polarizing layer 31 of the first polarizing element 11 and the absorption axis of the polarizing layer 31 of the second polarizing element 12 are perpendicular to each other. There is a mode called “Nicol”.

  Generally, the directionality of the dimensional change of a polarizing plate accompanying an environmental change (for example, temperature change or humidity change) changes according to the extending direction of the polarizing plate. For example, the first polarizing element 11 and the second polarizing element 12 that are arranged so that the extending directions of the polarizing layer 31 are the same direction (that is, the absorption axes are the same direction (parallel)) are the temperature and humidity. There is a tendency for the dimensions to change in the same direction as. In this case, regarding the influence on the member disposed between the first polarizing element 11 and the second polarizing element 12, “the influence caused by the dimensional change of the first polarizing element 11” and “the dimensional change of the second polarizing element 12”. Are mutually offsetting. As a result, the “overall influence on the member disposed between the first polarizing element 11 and the second polarizing element 12” due to the dimensional change of the first polarizing element 11 and the second polarizing element 12 is reduced. On the other hand, the first polarizing element 11 and the second polarizing element 12 are arranged so that the extending directions (absorption axis directions) of the first polarizing element 11 and the second polarizing element 12 (particularly the polarizing layer 31) are different from each other. When the temperature and humidity change, the dimensions change in a discrete direction, and the direction of stress acting on the member disposed between the first polarizing element 11 and the second polarizing element 12 becomes complicated.

  Therefore, the liquid crystal cell 10 according to each embodiment described later brings about “Even if the dimension of the first polarizing element 11 changes, the electrical connection between the conductive portion and the electrode can be effectively maintained”. In particular, the benefit is effectively enjoyed when “the absorption axis of the first polarizing element 11 and the absorption axis of the second polarizing element 12 are non-parallel”, specifically, the first polarizing element. 11 and the second polarizing element 12 are particularly beneficial when arranged in a crossed Nicols state.

  On the other hand, the adhesive layer 32 is the same as the polarizing layer 31 of the first polarizing element 11 and the second polarizing element 12, respectively, the first electrode base layer 21 and the second electrode base layer 22 (particularly the first resin base 13 and the second resin base 13). It plays the role of affixing to the resin substrate 14). The pressure-sensitive adhesive layer 32 can be formed of any pressure-sensitive adhesive material that can transmit visible light. For example, the pressure-sensitive adhesive layer 32 is formed of an OCA film (Optical Clear Adhesive Film). The OCA film is composed of a transparent adhesive sheet, and can be composed of only an adhesive having a substantially constant film thickness without including a base material. For example, the OCA film is composed of an acrylic adhesive having excellent transparency. Such an OCA film is manufactured by sandwiching a pressure-sensitive adhesive with a sheet (separator (peeling material)) having excellent releasability, and the pressure-sensitive adhesive layer is obtained by cutting out a laminate of the pressure-sensitive adhesive and the separator into a desired shape and removing the separator. 32 can be used.

  Each of the first resin base material 13 of the first electrode base material layer 21 and the second resin base material 14 of the second electrode base material layer 22 is disposed between a pair of hard coat layers 33 and these hard coat layers 33. And a resin film 34 (see FIGS. 2B and 2D). Each hard coat layer 33 plays a role of protecting the adjacent resin film 34 and can be made of any material that can transmit visible light, and is made of, for example, TAC (Triacetylcellulose) or acrylic, You may affix on the resin film 34 through an adhesion layer. Alternatively, a cured film containing fine particles (for example, titanium dioxide) may be formed on the surface of the resin film 34 using, for example, a silicone-based ultraviolet curable resin, and the cured film may function as the hard coat layer 33. Note that the hard coat layer 33 formed at a plurality of locations of the first resin base material 13 and the second resin base material 14 may be made of different materials depending on the position, or may be made of the same material.

  In the space between the first alignment film 17 and the second alignment film 18 filled with the liquid crystal molecules constituting the liquid crystal layer 19, a plurality of spacers 35 are arranged apart from each other (FIG. 2C). reference). The plurality of spacers 35 support the first alignment film 17 and the second alignment film 18, determine the distance between the first alignment film 17 and the second alignment film 18, and maintain the thickness of the liquid crystal layer 19 at a desired thickness. To play a role. The specific shape of each spacer 35 is not particularly limited, and typically, a columnar spacer 35 (see FIG. 2C) or a spherical spacer 35 is used.

  Columnar spacers 35 shown in FIG. 2 (c) are produced on the second electrode 16 (second electrode substrate layer 22) based on photolithography technology, and each spacer 35 penetrates the second alignment film 18, The first alignment film 17 is supported via the alignment film material. That is, by applying a resist on the second electrode 16 and solidifying it, exposing the resist through a mask and developing the exposed resist, a columnar spacer 35 is formed at a desired position on the second electrode 16. The Then, by applying an alignment film material such as polyimide on the surface of the spacer 35 and the second electrode 16, the second alignment film 18 is formed on the second electrode 16, and each spacer 35 is covered with the alignment film material. Is done. When the spherical spacer 35 is used, a large number of pre-made spherical spacers 35 are formed on the surface of one of the first alignment film 17 and the second alignment film 18 (for example, the second alignment film 18). Be sprayed.

  The configuration shown in FIG. 1 and FIG. 2 described above is merely an example, and the liquid crystal cell 10 may have another configuration, and a functional member corresponding to the use (application target) of the liquid crystal cell 10 is required as necessary. Can be provided. Such a functional member may be provided between the above-described layers constituting the liquid crystal cell 10 or may be provided outside the above-described layers constituting the liquid crystal cell 10. For example, a retardation compensation film is disposed “between the first polarizing element 11 and the first electrode base layer 21” and / or “between the second polarizing element 12 and the second electrode base layer 22”, The retardation compensation film reduces retardation caused by the driving method of the liquid crystal layer 19 and retardation caused by optical anisotropy of the first resin substrate 13 and the second resin substrate 14 (particularly the resin film 34). May be. Further, an adhesive layer may be provided between each layer to reinforce the fixing strength between adjacent layers. Further, a hard coat layer is provided on the outermost layer of the liquid crystal cell 10 (in the example shown in FIG. 1, outside the first polarizing element 11 and / or the second polarizing element 12) to protect each layer constituting the liquid crystal cell 10 from external force. You may do it. In addition, an arbitrary functional layer such as an index matching layer may be provided.

  Although not shown in FIGS. 1 and 2, a seal portion is provided between the first alignment film 17 and the second alignment film 18 (see reference numeral “38” in FIG. 3). The seal portion is disposed adjacent to the liquid crystal layer 19. The seal portion 38 divides a space into which the liquid crystal member constituting the liquid crystal layer 19 is injected together with the first alignment film 17 and the second alignment film 18 and seals the liquid crystal layer 19 to prevent leakage of the liquid crystal member. In addition, the first alignment film 17 and the second alignment film 18 are bonded to each other and fixed to each other.

  In addition, regarding the above-described FIGS. 1 and 2 and other drawings described later, “the direction of the illustrated liquid crystal cell 10” and “the direction of the actually used liquid crystal cell 10” do not necessarily match. For example, in FIG. 1, the first polarizing element 11 is located above the second polarizing element 12, but the second polarizing element 12 may be located above the first polarizing element 11. Good.

  Next, a connection mode between the electrodes (the first electrode 15 and the second electrode 16) and a conductive portion that applies a voltage to the electrodes will be described.

  In each of the following embodiments, the “first polarizing element 11 and / or the second polarized light” is provided to the conductive portion electrically connected to the first electrode 15 and / or the second electrode 16 of the liquid crystal cell 10. The influence of the dimensional change of the element 12 is effectively suppressed. In the following description, it is assumed that the FPC is used as the conductive portion. However, when a conductive portion other than the FPC is used, the conductive portion is physically attached to the electrode in the same manner as when the FPC is used. And can be electrically connected.

<First Embodiment>
FIG. 3 is a cross-sectional view showing a part of the liquid crystal cell 10 according to the first embodiment.

  A conductive portion 43 is disposed between the first electrode base layer 21 and the second electrode base layer 22. The conductive portion 43 is electrically connected to the first connection portion 41 electrically connected to the first electrode 15 of the first electrode base material layer 21 and to the second electrode 16 of the second electrode base material layer 22. And a second connection portion 42 connected to the.

  The first electrode 15 has a first exposed electrode portion 15 b that is not covered with the first alignment film 17 on the side opposite to the liquid crystal layer 19 through the seal portion 38. On the other hand, the second electrode 16 has a second exposed electrode portion 16 b that is not covered with the second alignment film 18 on the side opposite to the liquid crystal layer 19 through the seal portion 38. As described above, the first exposed electrode portion 15b and the second exposed electrode portion 16b are exposed without being covered with the first alignment film 17 and the second alignment film 18, respectively, and the first connection portion 41 and the second connection portion are exposed. The unit 42 is connected.

  The second exposed electrode portion 16b of the present embodiment is formed at a position that does not face the first exposed electrode portion 15b, and is located at a different distance from each of the liquid crystal layer 19 and the seal portion 38 in the direction perpendicular to the stacking direction. The first exposed electrode portion 15b and the second exposed electrode portion 16b are provided. The first exposed electrode portion 15 b and the second exposed electrode portion 16 b are not covered with the first polarizing element 11 and the second polarizing element 12. Therefore, the first connection portion 41 and the second connection portion 42 are not covered with the first polarizing element 11 and the second polarizing element 12.

  In the liquid crystal cell 10, a region where the liquid crystal layer 19 is covered by the first polarizing element 11 and the second polarizing element 12 forms an active area R 1 in which the light transmittance can be controlled by the orientation of the liquid crystal layer 19. Further, in the liquid crystal cell 10, the region where the liquid crystal layer 19 does not exist and the region not covered with the first polarizing element 11 and the second polarizing element 12 are inactive in which the light transmittance cannot be controlled by the orientation of the liquid crystal layer 19. Area R2 is formed. The first exposed electrode portion 15b, the second exposed electrode portion 16b, the first connection portion 41, and the second connection portion 42 of the present embodiment are all disposed in the inactive area R2.

  The conductive part 43 including the first connection part 41 and the second connection part 42 is composed of a plurality of members extending continuously without a gap, and the first connection part 41 and the second connection part 42 are integrated. It is configured. The “integrated first connecting portion 41 and second connecting portion 42” here need only be provided without a gap through the main body portion of the conductive portion 43, and are not necessarily “continuously extending. It is not necessary to be constituted by “the same member”. In particular, since a desired voltage is applied to the first electrode 15 and the second electrode 16 via the first connection portion 41 and the second connection portion 42, the first connection portion 41 and the second connection portion 42 are electrically insulated. Need to be. In the example shown in FIG. 3, the main body portion of the conductive portion 43 includes an insulating base film such as polyimide and an electric circuit formed of a conductive metal on the surface of the base film. And the 2nd connection part 42 is formed with the silver paste connected to the said electric circuit.

  Seal portions 38 are disposed between the first alignment film 17 and the second alignment film 18 and between the liquid crystal layer 19 and the conductive portion 43. In the present embodiment, all portions of the seal portion 38 are covered with the first polarizing element 11 and the second polarizing element 12, and the end face of the first polarizing element 11, the end face of the seal portion 38, the end face of the conductive portion 43, And the end surface of the 2nd polarizing element 12 is located on the same straight line. The seal portion 38 of the present embodiment is provided in a state of being in close contact with the liquid crystal layer 19 and the conductive portion 43 without a gap.

  The first connection part 41 and the second connection part 42 of the conductive part 43 are directly connected to the first exposed electrode part 15b and the second exposed electrode part 16b arranged in the inactive area R2, and these first exposed parts are exposed. A potential difference (voltage) is caused to the first covered electrode portion 15a and the second covered electrode portion 16a disposed in the active area R1 via the electrode portion 15b and the second exposed electrode portion 16b.

  Further, the first electrode base layer 21 of the present embodiment has a first protrusion 21a that is not covered by the first polarizing element 11, and the first protrusion 21a is in a direction perpendicular to the stacking direction (the right side of FIG. 3). Direction) and is provided outside the first polarizing element 11 and protrudes from the first polarizing element 11. The second electrode base layer 22 has a second protruding portion 22a that is not covered by the second polarizing element 12, and the second protruding portion 22a is the second in the direction perpendicular to the stacking direction (the right direction in FIG. 3). It is provided outside the two polarizing elements 12 and protrudes from the second polarizing element 12. The first exposed electrode portion 15b constitutes at least a part (only a part in the illustrated example) of the surface of the first projecting portion 21a, and the second exposed electrode portion 16b constitutes at least a part of the surface of the second projecting portion 22a ( In the example shown in the figure, only a part) is configured. The first connecting portion 41 is electrically connected to the first exposed electrode portion 15b provided in the first protruding portion 21a, and the second connecting portion 42 is the second exposed electrode portion 16b provided in the second protruding portion 22a. Is electrically connected.

  According to the liquid crystal cell 10 according to the present embodiment having the above-described configuration, the first exposed electrode portion 15b and the second exposed electrode portion 16b connected to the first connecting portion 41 and the second connecting portion 42 of the conductive portion 43, respectively. They are provided at positions that do not face each other. Therefore, the portion of the conductive portion 43 that is mainly affected by the fluctuation of the first exposed electrode portion 15b can be different from the portion that is mainly affected by the fluctuation of the second exposed electrode portion 16b. Variations in both the first exposed electrode portion 15b and the second exposed electrode portion 16b do not directly affect the same location. Therefore, even if the dimensions of the first polarizing element 11 and the second polarizing element 12 change, the same portion of the conductive portion 43 is directly affected by the dimensional change of the first polarizing element 11 and the second polarizing element 12. In addition, the electrical connection between the conductive portion 43 (the first connection portion 41 and the second connection portion 42) and the electrode (the first electrode 15 and the second electrode 16) can be appropriately maintained.

  Further, in particular, according to the liquid crystal cell 10 according to the present embodiment, the connection location of the first connection portion 41 (that is, the first exposed electrode portion 15b) in the first electrode 15 is not covered with the first polarizing element 11, Even if a dimensional change occurs in the first polarizing element 11, the influence of the dimensional change on the connection state between the first connection portion 41 and the first electrode 15 is very small. Similarly, since the connection portion (that is, the second exposed electrode portion 16b) of the second connection portion 42 in the second electrode 16 is not covered by the second polarizing element 12, a dimensional change occurs in the second polarizing element 12. However, the influence of such a dimensional change on the connection state between the second connection portion 42 and the second electrode 16 is very small.

  As described above, in the liquid crystal cell 10 of the present embodiment, even if the dimensions of the first polarizing element 11 and the second polarizing element 12 change, the conductive portion 43 (particularly, the first connecting portion 41 and the second connecting portion 42) and the electrode The electrical connection between the first electrode 15 and the second electrode 16 (particularly the first exposed electrode portion 15b and the second exposed electrode portion 16b) can be appropriately maintained.

Second Embodiment
FIG. 4 is a cross-sectional view showing a part of the liquid crystal cell 10 according to the second embodiment.

  The seal portion 38 of the present embodiment is disposed adjacent to the liquid crystal layer 19, but is disposed away from the conductive portion 43, and a space S 1 is formed between the seal portion 38 and the conductive portion 43. .

  Other configurations are the same as those of the liquid crystal cell 10 according to the first embodiment.

  Also in the liquid crystal cell 10 of the present embodiment, the first exposed electrode portion 15b and the second exposed electrode portion 16b connected to the first connecting portion 41 and the second connecting portion 42 of the conductive portion 43 are provided at positions where they do not face each other. In addition, the first exposed electrode portion 15b, the second exposed electrode portion 16b, the first connecting portion 41, and the second connecting portion 42 are not covered with the first polarizing element 11 and the second polarizing element 12. Therefore, even if the dimensions of the first polarizing element 11 and the second polarizing element 12 change, the conductive portion 43 (the first connecting portion 41 and the second connecting portion 42) and the electrode (the first electrode 15 and the second electrode 16). The electrical connection between the two can be maintained appropriately.

<Third Embodiment>
FIG. 5 is a cross-sectional view showing a part of the liquid crystal cell 10 according to the third embodiment.

  The seal portion 38 of this embodiment is not covered with the first polarizing element 11 and the second polarizing element 12. However, the liquid crystal layer 19 is covered with the first polarizing element 11 and the second polarizing element 12, and the end face of the first polarizing element 11 (the right end face in FIG. 5) and the end face of the seal portion 38 (the left end face in FIG. 5). ) And the end face of the second polarizing element 12 (right end face in FIG. 5) are located on the same straight line.

  Since the sealing portion 38 has such an arrangement relationship, the first exposed electrode portion 15b, the second exposed electrode portion 16b, the first connecting portion 41, and the first connecting electrode portion 41 provided on the opposite side of the liquid crystal layer 19 through the sealing portion 38, and The second connection part 42 is inevitably not covered by the first polarizing element 11 and the second polarizing element 12.

  Other configurations are the same as those of the liquid crystal cell 10 according to the second embodiment.

  Also in the liquid crystal cell 10 of the present embodiment, the first exposed electrode portion 15b and the second exposed electrode portion 16b are provided at positions that do not face each other, and the first exposed electrode portion 15b, the second exposed electrode portion 16b, the first exposed electrode portion 16b, and the first exposed electrode portion 16b. The connection part 41 and the second connection part 42 are not covered with the first polarizing element 11 and the second polarizing element 12. Therefore, even if the dimensions of the first polarizing element 11 and the second polarizing element 12 change, the conductive portion 43 (the first connecting portion 41 and the second connecting portion 42) and the electrode (the first electrode 15 and the second electrode 16). The electrical connection between the two can be maintained appropriately.

  Note that at least a part of the seal portion 38 is not necessarily covered with at least one of the first polarizing element 11 and the second polarizing element 12.

  FIG. 6 is a cross-sectional view showing a modification of the liquid crystal cell 10 of the third embodiment. In this modification, only a part of the seal part 38 is not covered with the first polarizing element 11 and the second polarizing element 12, and the other part of the seal part 38 is covered with the first polarizing element 11 and the second polarizing element 12. Covered.

  Also in this modification, the first exposed electrode portion 15b and the second exposed electrode portion 16b are provided at positions that do not face each other, and the first exposed electrode portion 15b, the second exposed electrode portion 16b, the first connecting portion 41, and the like. The second connection portion 42 is not covered with the first polarizing element 11 and the second polarizing element 12. Therefore, even if the dimensions of the first polarizing element 11 and the second polarizing element 12 change, the conductive portion 43 (the first connecting portion 41 and the second connecting portion 42) and the electrodes (the first electrode 15 and the second electrode 16) The electrical connection between the two can be properly maintained.

<Fourth embodiment>
FIG. 7 is a cross-sectional view showing a part of the liquid crystal cell 10 according to the fourth embodiment.

  In the present embodiment, all of the seal portion 38 is covered with the first polarizing element 11 and the second polarizing element 12, and the seal portion 38 is the first polarized light in the direction perpendicular to the stacking direction (the left-right direction in FIG. 7). It arrange | positions inside the element 11 and the 2nd polarizing element 12 (left side of FIG. 7).

  Similarly to the liquid crystal cell 10 of the second embodiment described above, the first exposed electrode portion 15b and the second exposed electrode portion 16b of the present embodiment are also provided at positions that do not face each other. However, one of the first connection portion 41 and the second connection portion 42 (the first connection portion 41 in the illustrated example) is a polarizing element (first in the illustrated example, which is disposed on the same side with respect to the liquid crystal layer 19 as a reference. Although not covered by the polarizing element 11), the other of the first connection part 41 and the second connection part 42 (second connection part 42 in the illustrated example) is arranged on the same side with respect to the liquid crystal layer 19. It is covered with a polarizing element (second polarizing element 12 in the illustrated example).

  In the following description, the polarizing element corresponding to the first connecting portion 41 means the first polarizing element 11 disposed on the same side as the first connecting portion 41, and the polarizing element corresponding to the second connecting portion 42. Means the second polarizing element 12 disposed on the same side as the second connection portion 42.

  Other configurations are the same as those of the liquid crystal cell 10 according to the second embodiment.

  Also in the liquid crystal cell 10 of the present embodiment, the first exposed electrode portion 15b and the second exposed electrode portion 16b are provided at positions that do not oppose each other, so that the influence of the variation of the first exposed electrode portion 15b in the conductive portion 43 is affected. The part mainly received is different from the part mainly affected by the fluctuation of the second exposed electrode portion 16b. Therefore, even if the dimensions of the first polarizing element 11 and the second polarizing element 12 change, the same portion of the conductive portion 43 is directly affected by the dimensional change of the first polarizing element 11 and the second polarizing element 12. Therefore, the electrical connection between the conductive portion 43 (the first connection portion 41 and the second connection portion 42) and the electrode (the first electrode 15 and the second electrode 16) can be effectively maintained.

  In this way, “the conductive portion 43 (the first connection portion 41 and the second connection portion 42) and the electrode (provided by providing the first exposed electrode portion 15b and the second exposed electrode portion 16b in positions not facing each other”) and the electrode ( The advantage that the electrical connection between the first electrode 15 and the second electrode 16) can be properly maintained is that the first connection portion 41 and the second connection portion 42 ( This is also effective when at least one of the first exposed electrode portion 15b and the second exposed electrode portion 16b) is covered with a corresponding polarizing element (first polarizing element 11 and second polarizing element 12).

<Fifth Embodiment>
FIG. 8 is a cross-sectional view showing a part of the liquid crystal cell 10 according to the fifth embodiment.

  In the present embodiment, the first polarizing element 11 and the second polarizing element 12 have different sizes, and the first connection part 41 and the second connection part 42 are not covered by the first polarizing element 11, but are second. Covered by the polarizing element 12. Accordingly, the first exposed electrode portion 15b and the first connecting portion 41 are arranged at positions not covered by the first polarizing element 11, but the second exposed electrode portion 16b and the second connecting portion 42 are covered by the second polarizing element 12. It is arranged at the position. In this way, one of the first connection portion 41 and the second connection portion 42 (the first connection portion 41 in the illustrated example) is a polarizing element (in the illustrated example, disposed on the same side with respect to the liquid crystal layer 19 as a reference). Although not covered by the first polarizing element 11), the other of the first connection part 41 and the second connection part 42 (second connection part 42 in the illustrated example) is arranged on the same side with respect to the liquid crystal layer 19. Covered with a polarizing element (second polarizing element 12 in the illustrated example). Similarly, one of the first exposed electrode portion 15b and the second exposed electrode portion 16b (first exposed electrode portion 15b in the illustrated example) is a polarizing element (on the same side with respect to the liquid crystal layer 19) ( Although not covered by the first polarizing element 11) in the illustrated example, the other of the first exposed electrode portion 15b and the second exposed electrode portion 16b (second exposed electrode portion 16b in the illustrated example) covers the liquid crystal layer 19. It is covered with a polarizing element (second polarizing element 12 in the illustrated example) arranged on the same side as a reference.

  The seal portion 38 is entirely covered with the first polarizing element 11 and the second polarizing element 12, and the first polarizing element 11 and the second polarizing element 12 have a direction perpendicular to the stacking direction (the left-right direction in FIG. 8). Is also arranged on the inner side (left side in FIG. 8).

  The first exposed electrode portion 15b and the second exposed electrode portion 16b are provided at positions that do not face each other, and are connected to the first exposed electrode portion 15b and the second exposed electrode portion 16b, respectively. The portions 42 are also provided at positions that do not face each other. In the present embodiment, the exposed electrode portion (the first exposed electrode portion 15b in the illustrated example) that is not covered by the corresponding polarizing element of the first exposed electrode portion 15b and the second exposed electrode portion 16b corresponds. It is provided at a position closer to the liquid crystal layer 19 and the seal portion 38 than the exposed electrode portion (second exposed electrode portion 16b in the illustrated example) covered with the polarizing element.

  Other configurations are the same as those of the liquid crystal cell 10 according to the second embodiment.

  Also in the liquid crystal cell 10 of the present embodiment, the first exposed electrode portion 15b and the second exposed electrode portion 16b are provided at positions that do not oppose each other, so that the influence of the variation of the first exposed electrode portion 15b in the conductive portion 43 is affected. The part mainly received is different from the part mainly affected by the fluctuation of the second exposed electrode portion 16b. Therefore, even if the dimensions of the first polarizing element 11 and the second polarizing element 12 change, the same portion of the conductive portion 43 is directly affected by the dimensional change of the first polarizing element 11 and the second polarizing element 12. Therefore, the electrical connection between the conductive portion 43 (the first connection portion 41 and the second connection portion 42) and the electrode (the first electrode 15 and the second electrode 16) can be maintained.

<Sixth Embodiment>
FIG. 9 is a plan view schematically showing the liquid crystal cell 10 according to the sixth embodiment. FIG. 10 is a cross-sectional view of the liquid crystal cell 10 taken along a cross-sectional line XX in FIG. FIG. 11 is a cross-sectional view of the liquid crystal cell 10 taken along a cross-sectional line XI-XI in FIG. 12 is a cross-sectional view of the liquid crystal cell 10 taken along a cross-sectional line XII-XII in FIG.

  The first connection part 41 and the second connection part 42 of the present embodiment are also not provided at positions facing each other. The first electrode substrate alignment layer 23 (first electrode substrate layer 21, first resin substrate 13, first electrode 15 and first alignment film 17) and second electrode substrate alignment layer 24 (second electrode substrate). The planar shapes of the material layer 22, the second resin base material 14, the second electrode 16, and the second alignment film 18) are different from each other.

  Of the first electrode substrate alignment layer 23 (first electrode substrate layer 21, first resin substrate 13, first electrode 15 and first alignment film 17), the direction perpendicular to the stacking direction (upward direction in FIG. 9, A portion protruding from the first polarizing element 11 (first protruding portion 21a) with respect to the right direction in FIG. 11 and a second electrode substrate orientation layer 24 (second electrode substrate layer 22, second resin substrate 14, Of the second electrode 16 and the second alignment film 18), a portion that protrudes from the second polarizing element 12 in the direction perpendicular to the stacking direction (upward direction in FIG. 9, right direction in FIG. 12) (second protruding portion 22a) Are arranged at positions that do not face each other (see FIG. 9). That is, the 1st protrusion part 21a is provided in the position which does not oppose the 2nd protrusion part 22a.

  One surface (front surface) of the conductive portion 43 is disposed so as to face the first protruding portion 21a (particularly the first exposed electrode portion 15b), and the other surface (back surface) of the conductive portion 43 is the second protruding portion 22a ( In particular, it is arranged to face the second exposed electrode portion 16b). The first connection portion 41 provided on the front surface side of the conductive portion 43 and the second connection portion 42 provided on the back surface side are respectively “first exposed electrode portion 15b of the first protrusion portion 21a” and “second protrusion portion 22a. The second exposed electrode portion 16b "is physically and electrically connected.

  The first polarizing element 11 and the second polarizing element 12 cover at least the liquid crystal layer 19 (the liquid crystal layer 19 and the seal portion 38 in the illustrated example), and also cover the first protruding portion 21a and the second protruding portion 22a. Arranged not to.

  Other configurations are the same as those of the liquid crystal cell 10 according to the second embodiment.

  Also in the liquid crystal cell 10 of the present embodiment, the first exposed electrode portion 15b and the second exposed electrode portion 16b are provided at positions that do not face each other, and the first exposed electrode portion 15b, the second exposed electrode portion 16b, the first exposed electrode portion 16b, and the first exposed electrode portion 16b. The connection part 41 and the second connection part 42 are not covered with the first polarizing element 11 and the second polarizing element 12. Therefore, even if the dimensions of the first polarizing element 11 and the second polarizing element 12 change, the conductive portion 43 (the first connecting portion 41 and the second connecting portion 42) and the electrode (the first electrode 15 and the second electrode 16). The electrical connection between the two can be maintained appropriately.

<Seventh embodiment>
FIG. 13 is a plan view schematically showing the liquid crystal cell 10 according to the seventh embodiment. FIG. 14 is a cross-sectional view of the liquid crystal cell 10 taken along a cross-sectional line XIV-XIV in FIG.

  In the second embodiment and the like described above, the first direction is the direction perpendicular to the stacking direction and in which the liquid crystal layer 19, the seal portion 38, and the conductive portion 43 are arranged (see the arrow “A1” in FIGS. 13 and 14). The connecting portion 41 and the second connecting portion 42 (the first exposed electrode portion 15b and the second exposed electrode portion 16b) are disposed at a shifted position, and the first connecting portion 41 and the second connecting portion 42 (the first exposed electrode portion 15b). And the second exposed electrode part 16b) are disposed at different distances from the liquid crystal layer 19 and the seal part 38, respectively. On the other hand, the first connection portion 41 and the second connection portion 42 (first exposed electrode portion 15b and second exposed electrode portion 16b) of the present embodiment are directions in which the liquid crystal layer 19, the seal portion 38, and the conductive portion 43 are arranged. (See the arrow “A1” in FIG. 13 and FIG. 14). 13 and the arrow “A2” in FIG. 14). Accordingly, the first connection portion 41 and the second connection portion 42 of the present embodiment are arranged at approximately equal distances from the liquid crystal layer 19 and the seal portion 38, but are not provided at positions facing each other.

  The first polarizing element 11 and the second polarizing element 12 have substantially the same shape, and not only the liquid crystal layer 19 but also the seal portion 38, the first exposed electrode portion 15b, the second exposed electrode portion 16b, and the first connecting portion. 41 and the 2nd connection part 42 are also provided so that it may cover.

  Other configurations are the same as those of the liquid crystal cell 10 according to the second embodiment.

  Also in the liquid crystal cell 10 of the present embodiment, the first exposed electrode portion 15b and the second exposed electrode portion 16b are provided at positions that do not face each other, and the dimensions of the first polarizing element 11 and the second polarizing element 12 change. Even in this case, the electrical connection between the conductive portion 43 (the first connection portion 41 and the second connection portion 42) and the electrode (the first electrode 15 and the second electrode 16) can be maintained.

<Eighth Embodiment>
FIG. 15 is a cross-sectional view showing a part of the liquid crystal cell 10 according to the eighth embodiment.

  In the liquid crystal cell 10 of this embodiment, at least a part of the seal portion 38 (all in the example shown in FIG. 15) is not covered with the first polarizing element 11 and the second polarizing element 12, and is interposed via the seal portion 38. The first exposed electrode portion 15b and the second exposed electrode portion 16b disposed on the side opposite to the liquid crystal layer 19 are disposed at positions facing each other in the stacking direction.

  Other configurations are the same as those of the liquid crystal cell 10 according to the third embodiment.

  By disposing the seal portion 38 so as not to be covered by the first polarizing element 11 and the second polarizing element 12, the “first exposed electrode portion 15b” provided on the opposite side of the liquid crystal layer 19 via the seal portion 38. The first exposed electrode portion 16b and the first connecting portion 41 and the second connecting portion 42 of the conductive portion 43 are inevitably not covered by the first polarizing element 11 and the second polarizing element 12. Therefore, even if a dimensional change occurs in the first polarizing element 11, such a dimensional change has an influence on the connection state between the first connection part 41 and the first electrode part 15 (first exposed electrode part 15 b). Is very small. Similarly, even if a dimensional change occurs in the second polarizing element 12, the influence of such a dimensional change on the connection state between the second connection part 42 and the second electrode part 16 (second exposed electrode part 16b). Is very small.

  In the liquid crystal cell 10 according to the third embodiment shown in FIG. 5, the first connection portion 41 (first exposed electrode portion 15 b) and the second connection portion 42 (second exposed electrode portion 16 b) are arranged at positions that do not face each other. In contrast, in the liquid crystal cell 10 according to the present embodiment shown in FIG. 15, the first connection portion 41 (first exposed electrode portion 15b) and the second connection portion 42 (second exposed electrode portion 16b) are mutually connected. It is arrange | positioned in the position facing. Thus, regardless of whether or not the first connection portion 41 (first exposed electrode portion 15b) and the second connection portion 42 (second exposed electrode portion 16b) face each other, the first exposed electrode portion 15b. The first exposure element 16b and the first connection part 41 and the second connection part 42 of the conductive part 43 are not covered with the first polarization element 11 and the second polarization element 12, thereby providing the first polarization element. Even if the dimensions of the eleventh and second polarizing elements 12 change, the electrical connection between the conductive portion 43 (the first connecting portion 41 and the second connecting portion 42) and the electrode (the first electrode 15 and the second electrode 16). Connection can be maintained well.

  In the example shown in FIG. 15, not all of the sealing portion 38 is covered with the first polarizing element 11 and the second polarizing element 12, but only a part of the sealing portion 38 is the first polarizing element as shown in FIG. 11 and the second polarizing element 12 (that is, when only a part of the seal portion 38 is covered by the first polarizing element 11 and the second polarizing element 12), 15b, the second exposed electrode portion 16b, and the first connection portion 41 and the second connection portion 42 of the conductive portion 43 are inevitably covered by the first polarizing element 11 and the second polarizing element 12. Thus, even if the dimension of the 1st polarizing element 11 and the 2nd polarizing element 12 changes by making at least one part of the seal | sticker part 38 not covered with the 1st polarizing element 11 and the 2nd polarizing element 12, it changes. The electrical connection between the conductive portion 43 (the first connection portion 41 and the second connection portion 42) and the electrode (the first electrode 15 and the second electrode 16) can be appropriately maintained.

<Ninth Embodiment>
FIG. 17 is a cross-sectional view showing a part of the liquid crystal cell 10 according to the ninth embodiment.

  In the present embodiment, the first connection portion 41 and the second connection portion 42 of the conductive portion 43 are provided as separate bodies. That is, the first connection portion 41 and the second connection portion 42 are not provided integrally, and are not physically and electrically continuous between the first connection portion 41 and the second connection portion 42. There are places.

  In the example shown in FIG. 17, the first conductive stacked portion 43 a and the second conductive stacked portion 43 b configured as separate bodies are stacked to form the conductive portion 43, and the first connecting portion 41 is the first conductive stacked portion. The second connection part 42 is provided as a part of the second conductive laminated part 43b. Each of the first conductive laminate 43a and the second conductive laminate 43b has a base film and an electric circuit, and the base film of the first conductive laminate 43a and the base film of the second conductive laminate 43b are in contact with each other. Are not directly fixed to each other. The first conductive stacked portion 43a and the second conductive stacked portion 43b may be directly fixed to each other at positions separated from the first connecting portion 41 and the second connecting portion 42, but at least in the stacking direction. At a position overlapping the “connection portion between the first exposed electrode portion 15b and the first connection portion 41” and the “connection portion between the second exposed electrode portion 16b and the second connection portion 42”, the first conductive laminated portion 43a and the first connection portion The two conductive laminated portions 43b are not directly fixed to each other.

  In the example shown in FIG. 17, the first connection portion 41 and the second connection portion 42 are arranged at positions facing each other in the stacking direction, but the first connection portion 41 and the second connection portion 42 are partially or All may be arranged at positions that do not face each other.

  Other configurations are the same as those of the liquid crystal cell 10 according to the seventh embodiment.

  According to the liquid crystal cell 10 of the present embodiment, since the first connection portion 41 and the second connection portion 42 are provided as separate bodies, even if the dimensions of the first polarizing element 11 and the second polarizing element 12 change, The same portion of the conductive portion 43 is not directly affected by the dimensional change of the first polarizing element 11 and the second polarizing element 12.

  That is, even if the dimensions of the first polarizing element 11 change and the first electrode 15 (first exposed electrode part 15b) and the first connecting part 41 fluctuate together with the first polarizing element 11, the first electrode 15 (first Variations in the exposed electrode portion 15b) and the first connecting portion 41 are not directly transmitted to the second electrode 16 (second exposed electrode portion 16b) and the second connecting portion. Similarly, even if the second electrode 16 (second exposed electrode portion 16b) and the second connection portion 42 fluctuate together with the second polarizing element 12, the second electrode 16 (second exposed electrode portion 16b) and the second connection portion. The fluctuation of 42 is not directly transmitted to the first electrode 15 (first exposed electrode portion 15b) and the first connection portion 41.

  Therefore, even if the dimensions of the first polarizing element 11 and the second polarizing element 12 change, the conductive portion 43 (the first connecting portion 41 and the second connecting portion 42) and the electrode (the first electrode 15 and the second electrode 16). The electrical connection between the two can be maintained appropriately.

  The above-described liquid crystal cell 10 can be widely applied to devices that require adjustment of light transmittance, and the application target is not particularly limited, and can be used in, for example, a liquid crystal display or a light control device.

  The present invention is not limited to the above-described embodiments and modifications, and can include various aspects to which various modifications that can be conceived by those skilled in the art can be included. The effects achieved by the present invention are also described above. It is not limited to the matter of. Therefore, various additions, modifications, and partial deletions can be made to each element described in the claims and the specification without departing from the technical idea and spirit of the present invention.

DESCRIPTION OF SYMBOLS 10 Liquid crystal cell 11 1st polarizing element 12 2nd polarizing element 13 1st resin base material 14 2nd resin base material 15 1st electrode 15a 1st coating electrode part 15b 1st exposed electrode part 16 2nd electrode 16a 2nd coating electrode Part 16b second exposed electrode part 17 first alignment film 18 second alignment film 19 liquid crystal layer 21 first electrode substrate layer 21a first protrusion 22 second electrode substrate layer 22a second protrusion 23 first electrode substrate Alignment layer 24 Second electrode substrate alignment layer 31 Polarizing layer 32 Adhesive layer 33 Hard coat layer 34 Resin film 35 Spacer 38 Seal part 41 First connection part 42 Second connection part 43 Conductive part 43a First conductive laminate part 43b Second Conductive laminate S1 Space R1 Active area R2 Inactive area

Claims (6)

A first polarizing element and a second polarizing element;
A first electrode base layer disposed on the first polarizing element side and a second electrode base layer disposed on the second polarizing element side between the first polarizing element and the second polarizing element; The first electrode substrate layer having the first resin substrate and the first electrode fixed to the first resin substrate, and fixed to the second resin substrate and the second resin substrate. A second electrode substrate layer having a second electrode to be formed;
A first alignment film disposed on the first electrode substrate layer side and a second electrode substrate layer side disposed between the first electrode substrate layer and the second electrode substrate layer. Two alignment films;
A liquid crystal layer disposed between the first alignment film and the second alignment film;
A conductive portion having a first connection portion electrically connected to the first electrode and a second connection portion electrically connected to the second electrode;
A seal portion disposed adjacent to the liquid crystal layer between the first alignment film and the second alignment film,
The first electrode has a first exposed electrode portion that is not covered with the first alignment film on the side opposite to the liquid crystal layer via the seal portion,
The second electrode has a second exposed electrode portion that is not covered with the second alignment film at a position that does not face the first exposed electrode portion on the side opposite to the liquid crystal layer through the seal portion. Liquid crystal cell. A first polarizing element and a second polarizing element;
A first electrode base layer disposed on the first polarizing element side and a second electrode base layer disposed on the second polarizing element side between the first polarizing element and the second polarizing element; The first electrode substrate layer having the first resin substrate and the first electrode fixed to the first resin substrate, and fixed to the second resin substrate and the second resin substrate. A second electrode substrate layer having a second electrode to be formed;
A first alignment film disposed on the first electrode substrate layer side and a second electrode substrate layer side disposed between the first electrode substrate layer and the second electrode substrate layer. Two alignment films;
A liquid crystal layer disposed between the first alignment film and the second alignment film;
A conductive portion having a first connection portion electrically connected to the first electrode and a second connection portion electrically connected to the second electrode;
A seal portion disposed adjacent to the liquid crystal layer between the first alignment film and the second alignment film,
At least a part of the seal portion is not covered with the first polarizing element and the second polarizing element,
The first electrode has a first exposed electrode portion that is not covered with the first alignment film on the side opposite to the liquid crystal layer via the seal portion,
The liquid crystal cell, wherein the second electrode has a second exposed electrode portion that is not covered with the second alignment film on a side opposite to the liquid crystal layer through the seal portion. A first polarizing element and a second polarizing element;
There in the first first electrode substrate layer Ru disposed polarizing element side and the second second electrode substrate layer that will be placed on the polarizing element side in between the first polarizing element and the second polarizing element The first electrode substrate layer having the first resin substrate and the first electrode fixed to the first resin substrate, and fixed to the second resin substrate and the second resin substrate. A second electrode substrate layer having a second electrode to be formed;
A first alignment film disposed on the first electrode substrate layer side and a second electrode substrate layer side disposed between the first electrode substrate layer and the second electrode substrate layer. Two alignment films;
A liquid crystal layer disposed between the first alignment film and the second alignment film ;
A first connection portion electrically connected to the front Symbol first electrode, a conductive portion and a second connecting portion electrically connected to said second electrode,
A seal portion disposed between the liquid crystal layer and the conductive portion between the first alignment film and the second alignment film ,
The first electrode is a first exposed electrode part that is not covered with the first alignment film on the opposite side of the liquid crystal layer through the seal part, and the first connection part is connected to the first electrode. Having an exposed electrode part,
The second electrode is a second exposed electrode portion that is not covered with the second alignment film on the side opposite to the liquid crystal layer through the seal portion, and is connected to the second connection portion. Having an exposed electrode part,
A liquid crystal cell provided separately from the said the first connecting portion of the conductive portion and the second connecting portion. The first electrode base layer has a first protrusion not covered with the first polarizing element,
The liquid crystal cell according to claim 1, wherein the first exposed electrode portion constitutes at least a part of a surface of the first protrusion. The second electrode substrate layer has a second protrusion that is not covered by the second polarizing element,
The liquid crystal cell according to claim 4, wherein the second exposed electrode portion constitutes at least a part of a surface of the second projecting portion.   The liquid crystal cell according to claim 5, wherein the first protrusion does not face the second protrusion.

Images