JP2019200372A - Liquid crystal device and electronic apparatus - Google Patents

Abstract

To provide a liquid crystal device that can improve sealability exhibited by a sealant by improving adhesion of the sealant, and an electronic apparatus.SOLUTION: A liquid crystal device 100 has a first substrate 10 provided with a first inorganic alignment film 16 having a column structure, and a second substrate 20 provided with a second inorganic alignment film 26 having a column structure, which are laminated with each other by a sealant 5. The first inorganic alignment film 16 and the second inorganic alignment film 26 are provided with first openings 161 and second openings 261, respectively, which open in areas in contact with the sealant 5; the contact area between the sealant 5 and first inorganic alignment film 16 and the contact area between the sealant 5 and second inorganic alignment film 26 are large. On an inner wall 161a of the first opening 161 and an inner wall 261a of the second opening 261, fine irregularities caused by a column are present, and thus the adhesion between the sealant 5 and first inorganic alignment film 16 and the adhesion between the sealant 5 and second inorganic alignment film 26 are high.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a liquid crystal device in which a pair of substrates is bonded with a sealing material, and an electronic apparatus.

  In the liquid crystal device, a first substrate and a second substrate are bonded to each other with a sealing material, and a liquid crystal layer is provided in a region surrounded by the sealing material. In forming such a structure, the first substrate and the second substrate are provided with irregularities in the portion that becomes the base of the sealing material, and then an alignment film is formed so as to cover the irregularities, and the alignment films of the first substrate and the second substrate are formed. A structure in which a sealing material is provided between alignment films has been proposed (see Patent Documents 1 and 2).

  The configuration described in FIG. 8 of Patent Document 1 has a structure in which an inorganic alignment film is formed so as to cover the unevenness after providing the unevenness in the portion serving as the base of the sealing material in the first substrate and the second substrate. . 6 has a structure in which an inorganic alignment film is formed so as to cover the unevenness after providing unevenness with a hygroscopic insulating film in a portion serving as a base of the sealing material.

Japanese Patent No. 4142064 JP 2012-108283 A

  In the liquid crystal device, the substrates are bonded to each other with at least one of the first substrate and the second substrate being a mother substrate, and then the mother substrate is cut. At that time, stress is applied to the sealing material, and the adhesion between the sealing material and the substrate may be lowered. In that case, when the liquid crystal device is placed under high temperature and high humidity, leakage of the liquid crystal or intrusion of moisture or the like into the liquid crystal occurs at a portion where the sealing performance by the sealing material is lowered. Therefore, it is necessary to improve the sealing performance. However, since the width of the sealing material and the material of the sealing material that can be used are limited, it is not easy to improve the sealing performance.

  On the other hand, in the configurations described in Patent Documents 1 and 2, since the surface area of the sealing material is increased due to the unevenness of the base, the adhesion between the sealing material and the substrate should be improved. However, when the inorganic alignment film is formed so as to cover the unevenness, the unevenness of the base is not completely reflected on the surface of the inorganic alignment film, so the surface area of the sealing material does not increase sufficiently, and therefore the sealing material There is a problem that the adhesion between the substrate and the substrate is not sufficiently improved.

  In view of the above problems, an object of the present invention is to provide a liquid crystal device and an electronic apparatus that can improve the sealing performance of a sealing material by increasing the adhesion of the sealing material.

  In order to solve the above-described problems, an aspect of the liquid crystal device according to the present invention includes a first substrate provided with a first inorganic alignment film having a column structure on one surface side, and opposed to the first substrate. A second substrate in which a second inorganic alignment film having a column structure is provided on one surface located on the first substrate side, a liquid crystal layer disposed between the first substrate and the second substrate, A sealing material provided so as to surround the liquid crystal layer between the first inorganic alignment film and the second inorganic alignment film, and for bonding the first substrate and the second substrate; The inorganic alignment film is provided with a first opening that opens in a region in contact with the sealing material.

  In the present invention, the first inorganic alignment film itself is provided with the first opening that opens in the region in contact with the sealing material. Therefore, the first inorganic alignment film has a first inorganic structure as compared with the case where the first inorganic alignment film is provided with unevenness. The surface area of the alignment film can be reliably increased. In addition, since the first inorganic alignment film has a column structure, fine irregularities exist on the surface, and fine irregularities also exist on the inner wall of the first opening. Accordingly, the contact area between the first inorganic alignment film and the sealing material can be reliably increased, so that the adhesion of the sealing material on the first substrate side can be increased, and the sealing performance by the sealing material can be improved. it can.

  In the present invention, the second inorganic alignment film is preferably provided with a second opening that opens in a region in contact with the sealing material. According to such an aspect, the second inorganic alignment film itself is provided with the second opening that opens in the region in contact with the sealing material. 2 The surface area of the inorganic alignment film can be reliably increased. In addition, since the second inorganic alignment film has a column structure, fine irregularities are present on the surface, and fine irregularities are also present on the inner wall of the second opening. Accordingly, the contact area between the second inorganic alignment film and the sealing material can be reliably increased, so that the adhesion of the sealing material on the second substrate side can be improved, and the sealing performance by the sealing material can be improved. it can.

  In the present invention, it is possible to adopt a mode in which the first openings are scattered in a region overlapping with the sealing material.

  In this invention, the said 1st opening part can employ | adopt the aspect which is a staggered arrangement | sequence along the extending direction of the said sealing material in the at least one part of the area | region which overlaps with the said sealing material. According to this aspect, the adhesiveness between the first inorganic alignment film and the sealing material can be uniformly increased over the entire region, and the sealing performance by the sealing material can be improved.

  In the present invention, it is possible to adopt a mode in which the first opening is opened in a circular shape. In the present invention, the first opening may have a polygonal opening.

  In the present invention, it is possible to adopt a mode in which the first opening extends in a groove shape along the extending direction of the sealing material. According to this aspect, it is possible to suppress moisture from entering the liquid crystal layer through the first inorganic alignment film by the sealing material in the first opening. In this case, it is possible to adopt a mode in which the first opening portion is at least part of a region overlapping with the sealing material and is arranged in parallel in the width direction of the sealing material. According to this aspect, it is possible to more effectively suppress moisture from entering the liquid crystal layer via the first inorganic alignment film by the sealing material in the first opening.

  In the present invention, it is possible to adopt a mode in which the first opening is provided at a depth penetrating the first inorganic alignment film. According to such an aspect, the surface area of the first inorganic alignment film can be increased efficiently, and the area of the inner wall of the first opening is increased. The contact area with the sealing material can be increased. Therefore, the adhesion of the sealing material on the first substrate side can be improved, and the sealing performance by the sealing material can be improved.

  In the present invention, the first opening may be provided up to an intermediate position in the thickness direction of the first inorganic alignment film. According to this aspect, the contact area between the first inorganic alignment film and the sealing material can be increased by the fine unevenness at the bottom of the first opening. Therefore, the adhesion of the sealing material on the first substrate side can be improved, and the sealing performance by the sealing material can be improved.

  In the present invention, the first opening may adopt an aspect in which the side wall is an inclined surface. According to this aspect, since the sealing material before solidification smoothly flows into the first opening, the sealing performance by the sealing material can be improved.

  The liquid crystal device according to the present invention can be used in various electronic devices such as a mobile phone, a mobile computer, and a projection display device. Among these electronic devices, the projection display device includes a light source unit for supplying light to the liquid crystal device and a projection optical system that projects light modulated by the liquid crystal device.

FIG. 3 is a plan view showing one mode of the liquid crystal device according to Embodiment 1 of the invention. FIG. 2 is a cross-sectional view of the liquid crystal device shown in FIG. Sectional drawing which expands and typically shows the sealing material periphery shown in FIG. The top view which expands and typically shows the sealing material periphery shown in FIG. Explanatory drawing of the liquid crystal device which concerns on Embodiment 2 of this invention. Explanatory drawing of the liquid crystal device which concerns on Embodiment 3 of this invention. Explanatory drawing of the liquid crystal device which concerns on Embodiment 4 of this invention. Explanatory drawing of the liquid crystal device which concerns on Embodiment 5 of this invention. Explanatory drawing of the liquid crystal device which concerns on Embodiment 6 of this invention. 1 is a schematic configuration diagram of a projection display device (electronic device) using a liquid crystal device to which the present invention is applied.

  Embodiments of the present invention will be described below. In the drawings to be referred to in the following description, the scales are different for each layer and each member so that each layer and each member have a size that can be recognized on the drawing. Further, in the following description, the description will focus on an aspect in which the first substrate 10 is an element substrate and the second substrate 20 is a counter substrate.

[Embodiment 1]
FIG. 1 is a plan view showing an aspect of a liquid crystal device 100 according to Embodiment 1 of the present invention. FIG. 2 is a cross-sectional view of the liquid crystal device 100 shown in FIG. As shown in FIGS. 1 and 2, the liquid crystal device 100 of the present embodiment has a liquid crystal panel 100p. In the liquid crystal panel 100p, the first substrate 10 and the second substrate 20 are bonded to each other with a sealing material 5 through a predetermined gap, and the sealing material 5 is provided in a frame shape along the outer edge of the second substrate 20. ing. The sealing material 5 is an adhesive made of a photocurable resin, a thermosetting resin, or the like, and a gap material 51 such as glass fiber or glass beads for blending the distance between the two substrates to a predetermined value is blended. In the liquid crystal panel 100p, a liquid crystal layer 80 is provided in a region surrounded by the sealing material 5 between the first substrate 10 and the second substrate 20. In this embodiment, the sealing material 5 is formed with a discontinuous portion used as the liquid crystal injection port 56, and the liquid crystal injection port 56 is sealed with a sealing material 57 after the liquid crystal material is injected. . In addition, after apply | coating the sealing material 5 to one board | substrate among the 1st board | substrates 10 and the 2nd board | substrate 20, the liquid crystal layer 80 is provided in the inner side, and the other board | substrate is interposed through the sealing material 5 in one board | substrate after that. After that, the sealing material 5 may be solidified. In that case, it is not necessary to provide the liquid crystal injection port 56 in the sealing material 5.

  In the liquid crystal panel 100p, each of the first substrate 10 and the second substrate 20 is a quadrangle, and the first substrate 10 has two sides 10g, 10h (end portions) facing each other in the X direction (first direction), and Y It has two sides 10e and 10f (end portions) that face each other in the direction (second direction). The display area 10a is provided as a quadrangular area substantially at the center of the liquid crystal panel 100p, and the sealing material 5 is also provided in a substantially square shape corresponding to the shape. The outer side of the display area 10a is a square frame-shaped outer peripheral area 10c.

  In the first substrate 10, in the outer peripheral region 10c, the data line driving circuit 101 and the plurality of terminals 102 are formed along the side 10e located on one side of the first substrate 10 in the Y-axis direction, and adjacent to the side 10e. A scanning line driving circuit 104 is formed along each of the other sides 10g and 10h. A flexible wiring board (not shown) is connected to the terminal 102, and various potentials and various signals are input to the first substrate 10 from an external control circuit via the flexible wiring board.

  As shown in FIG. 2, pixel electrodes 9a and pixel transistors (not shown) are arranged in a matrix in the display area 10a on the one surface 10s side of the first substrate 10 facing the second substrate 20. Yes. Therefore, the display area 10a is configured as a pixel electrode arrangement area 10p in which the pixel electrodes 9a are arranged in a matrix. In the first substrate 10, the pixel electrode 9 a is formed on the surface opposite to the first substrate 10 of the interlayer insulating film such as a silicon oxide film, and the surface on the opposite side of the pixel electrode 9 a from the first substrate 10 is the first. 1 covered with an inorganic alignment film 16. On the side of one surface 10 s of the first substrate 10, in the outer peripheral area 10 c outside the display area 10 a, the rectangular frame-shaped peripheral area 10 b sandwiched between the display area 10 a and the sealing material 5 includes pixel electrodes 9 a A dummy pixel electrode 9b formed at the same time is formed.

  A common electrode 21 is formed on the one surface 20 s side of the second substrate 20 facing the first substrate 10. The common electrode 21 is formed across a plurality of pixels as a substantially entire surface of the second substrate 20 or a plurality of strip electrodes. In the present embodiment, the common electrode 21 is formed on substantially the entire surface of the second substrate 20.

  A light shielding layer 29 is formed on the lower side of the common electrode 21 on the one surface 20 s side of the second substrate 20, and a second inorganic alignment film 26 is laminated on the surface of the common electrode 21. The light shielding layer 29 is formed as a frame portion 29 a extending along the outer peripheral edge of the display area 10 a, and the display area 10 a is defined by the inner peripheral edge of the light shielding layer 29. The light shielding layer 29 is also formed as a black matrix portion 29b that overlaps an inter-pixel region sandwiched between adjacent pixel electrodes 9a. The frame portion 29 a is formed at a position overlapping the dummy pixel electrode 9 b, and the outer peripheral edge of the frame portion 29 a is at a position with a gap between the inner peripheral edge of the sealing material 5. Therefore, the frame portion 29a and the sealing material 5 do not overlap.

  In the liquid crystal panel 100p, inter-substrate conduction electrodes 25 are formed on the four corners on the one surface 20s side of the second substrate 20 outside the sealing material 5, and the one surface 10s of the first substrate 10 is formed on the one surface 10s. On the side, inter-substrate conduction electrodes 19 are formed at positions facing the four corners of the second substrate 20 (inter-substrate conduction electrodes 25). In the present embodiment, the inter-substrate conduction electrode 25 is composed of a part of the common electrode 21. A common potential Vcom is applied to the inter-substrate conduction electrode 19. An inter-substrate conducting material 19a containing conductive particles is disposed between the inter-substrate conducting electrode 19 and the inter-substrate conducting electrode 25, and the common electrode 21 of the second substrate 20 is an inter-substrate conducting electrode. 19, electrically connected to the first substrate 10 side via the inter-substrate conductive material 19a and the inter-substrate conductive electrode 25. For this reason, the common potential Vcom is applied to the common electrode 21 from the first substrate 10 side. The sealing material 5 is provided along the outer peripheral edge of the second substrate 20 with substantially the same width dimension, but in the region overlapping the corner portion of the second substrate 20, avoid the inter-substrate conduction electrodes 19, 25. It is provided to pass through.

  In this embodiment, the liquid crystal device 100 is a transmissive liquid crystal device, and the pixel electrode 9a and the common electrode 21 are formed of a light-transmitting conductive film such as an ITO (Indium Tin Oxide) film or an IZO (Indium Zinc Oxide) film. Has been. In such a transmissive liquid crystal device (the liquid crystal device 100), for example, light incident from the second substrate 20 side is modulated while being emitted from the first substrate 10 side, and an image is displayed. When the liquid crystal device 100 is a reflective liquid crystal device, the common electrode 21 is formed of a light-transmitting conductive film such as an ITO film or an IZO film, and the pixel electrode 9a is formed of a reflective conductive film such as an aluminum film. It is formed. In such a reflective liquid crystal device (the liquid crystal device 100), the light incident from the second substrate 20 side of the first substrate 10 and the second substrate 20 is modulated while being reflected and emitted by the first substrate 10. To display the image.

  The liquid crystal device 100 can be used as a color display device of an electronic device such as a mobile computer or a mobile phone. In this case, a color filter (not shown) is formed on the second substrate 20. The liquid crystal device 100 can be used as electronic paper. Further, in the liquid crystal device 100, the polarizing film, the retardation film, the polarizing plate, etc. have a predetermined orientation with respect to the liquid crystal panel 100p according to the type of the liquid crystal layer 80 to be used and the normally white mode / normally black mode. Placed in. Furthermore, the liquid crystal device 100 can be used as a light valve for RGB in a projection display device (liquid crystal projector) described later. In this case, each color liquid crystal device 100 for RGB receives light of each color separated through RGB color separation dichroic mirrors as projection light, so that no color filter is formed.

(Configuration of the first inorganic alignment film 16 and the second inorganic alignment film 26)
FIG. 3 is a cross-sectional view schematically showing the periphery of the sealing material 5 shown in FIG. 2 in an enlarged manner. 4 is an enlarged plan view schematically showing the periphery of the sealing material 5 shown in FIG. In FIG. 3, the dummy pixel electrode 9b shown in FIG. 2 is provided between the pixel electrode 9a and the sealing material 5. However, in FIG. 3, the illustration of the dummy pixel electrode 9b is omitted.

In FIG. 3, each of the first inorganic alignment film 16 and the second inorganic alignment film 26 is SiO _x (x <2), SiO ₂ , TiO ₂ , MgO, Al ₂ O ₃ , In ₂ O ₃ , Sb ₂ O. _3, consists of oblique deposition film such as Ta ₂ O _5. Therefore, the first inorganic alignment film 16 and the second inorganic alignment film 26 have a column structure in which a plurality of convex portions called columns are inclined obliquely. Therefore, when the first inorganic alignment film 16 and the second inorganic alignment film 26 vertically align the liquid crystal molecules 81 such as nematic liquid crystal molecules having negative dielectric anisotropy used for the liquid crystal layer 80, the length of the liquid crystal molecules 81 is increased. A pretilt whose axis is inclined obliquely from the normal to the first substrate 10 and the second substrate 20 can be applied. In this embodiment, each of the first inorganic alignment film 16 and the second inorganic alignment film 26 is made of an obliquely deposited film of SiO ₂ .

  The first inorganic alignment film 16 and the second inorganic alignment film 26 are formed on substantially the entire surface of the first substrate 10 and the second substrate 20, respectively. Therefore, the sealing material 5 is provided so as to surround the liquid crystal layer 80 between the first inorganic alignment film 16 and the second inorganic alignment film 26, and bonds the first substrate 10 and the second substrate 20 together.

  Here, the first inorganic alignment film 16 is provided with a first opening 161 that opens in a region in contact with the sealing material 5, and the sealing material 5 is different from the first substrate 10 of the first inorganic alignment film 16. It is in contact with the opposite surface and the inner wall 161a of the first opening 161. The second inorganic alignment film 26 is provided with a second opening 261 that opens in a region in contact with the sealing material 5. The sealing material 5 is opposite to the second substrate 20 of the second inorganic alignment film 26. The side surface and the inner wall 261a of the second opening 261 are in contact with each other.

  As shown in FIG. 4, the first openings 161 are scattered over the entire area overlapping the sealing material 5, and the second openings 261 are scattered throughout the entire area overlapping the sealing material 5. In the present embodiment, the first opening 161 and the second opening 261 are each in the first direction X along the side 10 f of the first substrate 10 and the side of the first substrate 10 in the entire region overlapping the sealing material 5. It arrange | positions so that it may align with the 2nd direction Y along 10h.

  The first opening 161 and the second opening 261 each have a circular opening. The first opening 161 is provided at a depth penetrating the first inorganic alignment film 16, and the sealing material 5 is a silicon oxide that is a base of the pixel electrode 9 a at the bottom 161 b of the first opening 161. It is in contact with the interlayer insulating film 11 such as a film. Further, the second opening 261 is provided at a depth penetrating the second inorganic alignment film 26, and the sealing material 5 is formed on the common electrode 21 made of an ITO film or the like at the bottom 261 b of the second opening 261. It touches.

(Production method)
In manufacturing the liquid crystal device 100 of the present embodiment, in the first manufacturing method, for example, the first substrate 10 and the second substrate 20 are each bonded together in the state of a large mother substrate, and then the second substrate. The mother substrate for 20 is cut to expose the liquid crystal injection port 56. Next, after performing the liquid crystal injecting step, the sealing step is performed, and then the mother substrate for the first substrate 10 is cut along the planned dividing line to obtain the single size liquid crystal device 100.

  In the second manufacturing method, only the first substrate 10 is configured as a large mother substrate, and then the single-sized second substrate 20 is bonded to the mother substrate. Next, after performing the liquid crystal injecting step, the sealing step is performed, and then the mother substrate is cut along the planned dividing line to obtain a single size liquid crystal device.

  In any case, after forming the first inorganic alignment film 16 on the mother substrate for the first substrate 10 before the bonding step, an etching mask is formed on the surface of the first inorganic alignment film 16. Etching is performed from the opening of the etching mask to form the first opening 161. Before the bonding step, the second inorganic alignment film 26 is formed on the mother substrate for the second substrate 20 and then the etching mask is formed on the surface of the second inorganic alignment film 26. Etching is performed from the opening to form the second opening 261.

(Main effects of this embodiment)
As described above, in the liquid crystal device 100 of this embodiment, the first inorganic alignment film 16 is provided with the first opening 161 that opens in the region in contact with the sealing material 5 in the first inorganic alignment film 16 itself. The surface area of the first inorganic alignment film 16 can be surely increased in the region overlapping the sealing material 5 as compared with the case where the unevenness is provided on the base of the substrate and the unevenness is reflected on the first inorganic alignment film 16. Further, since the first inorganic alignment film 16 has a column structure, fine irregularities are present on the surface, and fine irregularities are also present on the inner wall 161 a of the first opening 161. Therefore, the contact area between the first inorganic alignment film 16 and the sealing material 5 can be reliably increased. Further, the fine irregularities of the first inorganic alignment film 16 exert an anchor effect on the sealing material 5. Therefore, the adhesion of the sealing material 5 on the first substrate 10 side can be improved.

  Further, since the second inorganic alignment film 26 itself is provided with the second opening 261 that opens in a region in contact with the sealing material 5, the surface area of the second inorganic alignment film 26 is surely ensured in the region overlapping the sealing material 5. Can be increased. Further, since the second inorganic alignment film 26 has a column structure, fine irregularities are present on the surface, and fine irregularities are also present on the inner wall 261 a of the second opening 261. Therefore, the contact area between the second inorganic alignment film 26 and the sealing material 5 can be increased reliably. Further, the fine unevenness of the second inorganic alignment film 26 exerts an anchor effect on the sealing material 5. Therefore, the adhesion of the sealing material 5 on the second substrate 20 side can be enhanced.

  Therefore, since the sealing performance by the sealing material 5 can be improved, even when stress is applied to the sealing material 5 when the mother substrate is cut, the adhesion between the sealing material 5 and the first substrate 10, and the sealing material 5 and the 2nd board | substrate 20 cannot fall easily. Therefore, when the liquid crystal device 100 is placed under high temperature and high humidity, problems such as liquid crystal leakage and intrusion of moisture into the liquid crystal layer 80 are unlikely to occur in the portion where the sealing performance by the sealing material 5 is reduced. The reliability of the device 100 can be improved.

  The first opening 161 is provided at a depth that penetrates the first inorganic alignment film 16, and the second opening 261 is provided at a depth that penetrates the second inorganic alignment film 26. Therefore, the surface areas of the first inorganic alignment film 16 and the second inorganic alignment film 26 can be reliably increased in the region overlapping with the sealing material 5. Further, since the areas of the inner wall 161a of the first opening 161 and the inner wall 261a of the second opening 261 are increased, the contact area between the first inorganic alignment film 16 and the sealing material 5 due to the minute unevenness of the inner walls 161a and 261a. In addition, the contact area between the second inorganic alignment film 26 and the sealing material 5 can be increased. Therefore, the sealing performance by the sealing material 5 can be further improved.

  Further, the sealing material 5 is present inside the first opening 161 and inside the second opening 261. Here, the sealing material 5 has higher airtightness than the first inorganic alignment film 16 and the second inorganic alignment film 26 having a column structure. Accordingly, the moisture 5 enters the liquid crystal layer 80 from the outside through the first inorganic alignment film 16 and the second inorganic alignment film 26, and the sealing material 5 inside the first opening 161 and inside the second opening 261. In this respect, the reliability of the liquid crystal device 100 can be improved.

[Embodiment 2]
FIG. 5 is an explanatory diagram of the liquid crystal device 100 according to the second embodiment of the present invention, and is a plan view schematically showing the periphery of the sealing material 5 in an enlarged manner. In addition, since the basic structure of this embodiment and embodiment mentioned later is the same as that of Embodiment 1, it attaches | subjects and shows the same code | symbol to a common part, and abbreviate | omits those detailed description.

  In the first embodiment, the first opening 161 and the second opening 261 are each opened in a circular shape. However, as shown in FIG. 5, the first opening 161 and the second opening 261 are each many. The aspect opened squarely may be sufficient. In the present embodiment, the first opening 161 and the second opening 261 may each be opened in a square shape.

[Embodiment 3]
FIG. 6 is an explanatory diagram of the liquid crystal device 100 according to the third embodiment of the present invention, and is a plan view schematically showing the periphery of the sealing material 5 in an enlarged manner. In the first and second embodiments, the first opening 161 and the second opening 261 are arranged so as to be aligned in the first direction X and the second direction Y, respectively. In the present embodiment, as shown in FIG. 6, each of the first opening 161 and the second opening 261 is at least a part of a region overlapping with the sealing material 5, and is staggered along the extending direction of the sealing material 5. It is an array. According to this aspect, the liquid crystal layer 80 passes through the first inorganic alignment film 16 and the second inorganic alignment film 26 from the outside by the sealing material 5 located inside the first opening 161 and the second opening 261. It is possible to more effectively suppress intrusion.

[Embodiment 4]
FIG. 7 is an explanatory diagram of the liquid crystal device 100 according to the fourth embodiment of the present invention, and is a plan view schematically showing the periphery of the sealing material 5 in an enlarged manner. In the first to third embodiments, the first openings 161 and the second openings 261 are arranged so as to be scattered. In the present embodiment, as shown in FIG. 7, each of the first opening 161 and the second opening 261 overlaps with the sealing material 5 and has a groove shape extending along the extending direction of the sealing material 5. Is formed. Further, in this embodiment, the first opening 161 and the second opening 261 are arranged so as to be parallel to each other in at least a part of the region overlapping the sealing material 5 in the width direction of the sealing material 5.

  According to this aspect, the liquid crystal layer 80 passes through the first inorganic alignment film 16 and the second inorganic alignment film 26 from the outside by the sealing material 5 located inside the first opening 161 and the second opening 261. It is possible to more effectively suppress intrusion.

[Embodiment 5]
FIG. 8 is an explanatory diagram of the liquid crystal device 100 according to the fifth embodiment of the present invention, and is a cross-sectional view schematically showing the periphery of the sealing material 5 in an enlarged manner. In the first to fourth embodiments, the first opening 161 and the second opening 261 are formed so as to penetrate the first inorganic alignment film 16 and the second inorganic alignment film 26, respectively. In the present embodiment, as shown in FIG. 8, the first opening 161 is provided up to a middle position in the thickness direction of the first inorganic alignment film 16, and the second opening 261 is formed of the second inorganic alignment film 26. It is provided up to an intermediate position in the thickness direction.

  Accordingly, the bottom 161 b of the first opening 161 is made of the first inorganic alignment film 16, and the bottom 261 b of the second opening 261 is made of the second inorganic alignment film 26. For this reason, the sealing material 5 is in contact with the first inorganic alignment film 16 also at the bottom 161 b of the first opening 161, and is in contact with the second inorganic alignment film 26 at the bottom 261 b of the second opening 261. Therefore, the first inorganic alignment film 16 and the sealing material 5 are brought into contact with each other and the second inorganic alignment film 26 and the sealing material due to the minute unevenness of the first opening 161 and the bottoms 161b and 261b of the second opening 261. 5 and the contact area can be increased. Therefore, the adhesiveness of the sealing material 5 on the first substrate 10 side and the adhesiveness of the sealing material 5 on the second substrate 20 side can be enhanced, and the sealing performance by the sealing material 5 can be improved.

[Embodiment 6]
FIG. 9 is an explanatory view of the liquid crystal device 100 according to the sixth embodiment of the present invention, and is a cross-sectional view schematically showing the periphery of the sealing material 5 in an enlarged manner. In the first to fifth embodiments, the inner walls of the first opening 161 and the second opening 261 are perpendicular or substantially perpendicular to the first substrate 10 and the second substrate 20. In the present embodiment, as shown in FIG. 9, the inner walls 161 a and 261 a of the first opening 161 and the second opening 261 are the same as the one surface 10 s of the first substrate 10 and the one surface 20 s of the second substrate 20. The inner wall 161a, 261a has an upward forward taper. The inner walls 161a and 261a of the first opening 161 and the second opening 261 are, for example, 10 ° or more and less than 30 ° from the normal direction to the one surface 10s of the first substrate 10 and the one surface 20s of the second substrate 20. It is inclined at an angle of. According to this aspect, since the sealing material 5 smoothly flows into the first opening 161 and the second opening 261 when the unsealed sealing material 5 is applied, the sealing material on the first substrate 10 side. 5 and the adhesion of the sealing material 5 on the second substrate 20 side can be improved.

[Example of mounting on electronic devices]
An electronic apparatus using the liquid crystal device 100 according to the above-described embodiment will be described. FIG. 10 is a schematic configuration diagram of a projection display device (electronic device) using the liquid crystal device 100 to which the present invention is applied. In FIG. 10, an optical element such as a polarizing plate is not shown. A projection display device 2100 illustrated in FIG. 10 is an example of an electronic device using the liquid crystal device 100. In the projection display device 2100, the liquid crystal device 100 is used as a light valve, and high-definition and bright display is possible without increasing the size of the device. As shown in this figure, a lamp unit 2102 (light source unit) having a white light source such as a halogen lamp is provided inside the projection display device 2100. The projection light emitted from the lamp unit 2102 is converted into three primary colors of R (red), G (green), and B (blue) by three mirrors 2106 and two dichroic mirrors 2108 arranged inside. To be separated. The separated projection light is respectively guided to the light valves 100R, 100G, and 100B corresponding to the respective primary colors and modulated. B light has a longer optical path than other R and G colors. Therefore, in order to prevent the loss, light of B color is guided through a relay lens system 2121 having an incident lens 2122, a relay lens 2123, and an output lens 2124. It is burned.

  The lights modulated by the light valves 100R, 100G, and 100B are incident on the dichroic prism 2112 from three directions. In the dichroic prism 2112, the R and B light beams are reflected at 90 degrees, and the G light beam is transmitted. Accordingly, after the primary color images are combined, a color image is projected onto the screen 2120 by the projection lens group 2114 (projection optical system).

(Other projection display devices)
In addition, about a projection type display apparatus, you may comprise the LED light source etc. which radiate | emit the light of each color as a light source part, and supply each color light radiate | emitted from this LED light source to another liquid crystal device. .

(Other electronic devices)
The electronic apparatus including the liquid crystal device 100 to which the present invention is applied is not limited to the projection display device 2100 of the above embodiment. The liquid crystal device 100 to which the present invention is applied may be used in electronic devices such as a projection type HUD (head-up display), a direct-view type HMD (head-mounted display), a personal computer, a digital still camera, and a liquid crystal television. .

  DESCRIPTION OF SYMBOLS 5 ... Sealing material, 9a ... Pixel electrode, 9b ... Dummy pixel electrode, 10 ... 1st board | substrate, 10a ... Display area, 10b ... Peripheral area | region, 10c ... Outer periphery area | region, 10p ... Pixel electrode arrangement area | region, 10s, 20s ... One side , 11 ... interlayer insulating film, 16 ... first inorganic alignment film, 20 ... second substrate, 21 ... common electrode, 26 ... second inorganic alignment film, 51 ... gap material, 80 ... liquid crystal layer, 81 ... liquid crystal molecule, 100 ... Liquid crystal device, 100B, 100G, 100R ... Light valve, 100p ... Liquid crystal panel, 161 ... First opening, 161a, 261a ... Inner wall, 161b, 261b ... Bottom, 261 ... Second opening, 2100 ... Projection type display device 2102 ... Lamp unit, 2112 ... Dichroic prism, 2114 ... Projection lens group.

Claims (12)

A first substrate provided with a first inorganic alignment film having a column structure on one side;
A second substrate disposed on one side of the first substrate, the second inorganic alignment film having a column structure disposed opposite to the first substrate;
A liquid crystal layer disposed between the first substrate and the second substrate;
A sealing material provided so as to surround the liquid crystal layer between the first inorganic alignment film and the second inorganic alignment film, and bonding the first substrate and the second substrate;
Have
The liquid crystal device according to claim 1, wherein the first inorganic alignment film is provided with a first opening that opens in a region in contact with the sealing material. The liquid crystal device according to claim 1,
The liquid crystal device according to claim 1, wherein the second inorganic alignment film is provided with a second opening that opens in a region in contact with the sealing material. The liquid crystal device according to claim 1 or 2,
The liquid crystal device, wherein the first openings are scattered in a region overlapping with the sealing material. The liquid crystal device according to claim 3.
The liquid crystal device according to claim 1, wherein the first openings are arranged in a staggered manner along an extending direction of the sealing material in at least a part of a region overlapping with the sealing material. The liquid crystal device according to claim 3 or 4,
The liquid crystal device according to claim 1, wherein the first opening has a circular opening. The liquid crystal device according to claim 3 or 4,
The liquid crystal device according to claim 1, wherein the first opening has a polygonal opening. The liquid crystal device according to claim 1 or 2,
The liquid crystal device according to claim 1, wherein the first opening extends in a groove shape along the extending direction of the sealing material. The liquid crystal device according to claim 7,
The liquid crystal device according to claim 1, wherein the first opening is at least a part of a region overlapping with the sealing material and is arranged in parallel in the width direction of the sealing material. The liquid crystal device according to any one of claims 1 to 8,
The liquid crystal device according to claim 1, wherein the first opening is provided at a depth penetrating the first inorganic alignment film. The liquid crystal device according to any one of claims 1 to 8,
The liquid crystal device according to claim 1, wherein the first opening is provided up to a middle position in the thickness direction of the first inorganic alignment film. The liquid crystal device according to any one of claims 1 to 10,
The liquid crystal device according to claim 1, wherein the first opening has an inclined side wall.   An electronic apparatus comprising the liquid crystal device according to any one of claims 1 to 11.