Liquid crystal device and electronic apparatus

Abstract

To provide a liquid crystal device and an electronic apparatus which can remove ionic impurities generated by deterioration in liquid crystal with xerogel and which can reduce the influence of the deterioration in the liquid crystal without increase in size of a liquid crystal panel.SOLUTION: A liquid crystal device includes: a first substrate; a second substrate; a seal material provided at an outer peripheral part between the first and second substrates in planer view; a liquid crystal layer provided on an inner side surrounded by the seal material between the first and second substrates in planer view; and an absorption layer which is provided along at least a part of the seal material and which includes xerogel.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a liquid crystal device and an electronic device. [Background technology]

[0002] Conventionally, a liquid crystal device has been proposed in which a circulation flow path for circulating liquid crystal provided inside a sealing material is formed by a sealing material and a partition wall, and the circulation flow path is provided with a forced circulation device that forcibly flows the liquid crystal in the circulation flow path, and a configuration has been proposed in which the adsorption of ions is made higher than that of the display area. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2020-187213 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the liquid crystal device disclosed in Patent Document 1, it is necessary to secure a sufficient space for providing a circulation path, which poses a problem that the display area must be reduced or the panel must be enlarged. [Means for solving the problem]

[0005] According to one aspect of the present invention, a liquid crystal device is provided comprising a first substrate, a second substrate, a sealing material disposed between the first substrate and the second substrate, a liquid crystal layer disposed between the first substrate and the second substrate and inside the sealing material in a planar view, and an adsorption layer including a xerogel disposed along at least a portion of the sealing material.

[0006] According to another aspect of the present invention, there is provided a liquid crystal device comprising: a first substrate, a second substrate, a sealing material disposed between the first substrate and the second substrate, a liquid crystal layer disposed between the first substrate and the second substrate and inside the sealing material in a planar view, a pixel electrode disposed between the first substrate and the liquid crystal layer, a dummy pixel electrode disposed on the sealing material side of the pixel electrode, and an adsorption layer containing a xerogel disposed between the pixel electrode and the dummy pixel electrode in a planar view.

[0007] According to another aspect of the present invention, there is provided a liquid crystal device comprising a first substrate, a second substrate, a liquid crystal layer disposed between the first substrate and the second substrate, a first pixel electrode disposed between the first substrate and the liquid crystal layer, a second pixel electrode disposed between the first substrate and the liquid crystal layer and arranged alongside the first pixel electrode in a planar view, and an adsorption layer containing a xerogel disposed between the first pixel electrode and the second pixel electrode in a planar view.

[0008] According to another aspect of the present invention, there is provided an electronic device including the above-mentioned liquid crystal device. [Brief description of the drawings]

[0009] [Figure 1] 1 is a plan view showing an example of the configuration of a liquid crystal device according to a first embodiment of the invention. [Diagram 2] 2 is a H-H′ cross-sectional view of the liquid crystal device shown in FIG. [Diagram 3] 2 is a cross-sectional view showing a schematic example of a specific configuration of a pixel of the liquid crystal device shown in FIG. [Figure 4] FIG. 4 is a cross-sectional view illustrating a specific configuration example of a pixel of a liquid crystal device according to a modified example of the first embodiment of the present invention. [Diagram 5] FIG. 11 is a cross-sectional view illustrating a specific configuration example of a pixel of a liquid crystal device according to a second embodiment of the present invention. [Figure 6] FIG. 11 is an exploded perspective view showing an example of the configuration of a liquid crystal display according to a third embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] [First embodiment] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the drawings, the dimensions of the components may be shown on different scales in order to make the components easier to see.

[0011] [Overall configuration of liquid crystal device] FIG 1 is a plan view showing one aspect of a liquid crystal device 100 according to a first embodiment. FIG 2 is a cross-sectional view taken along the line HH' of the liquid crystal device 100 of FIG 1. FIG 3 is an explanatory view showing an enlarged schematic view of the cross section shown in FIG 2. As shown in FIG 1, FIG 2, and FIG 3, the liquid crystal device 100 has a liquid crystal panel 100p in which a first substrate 10 (element substrate) and a second substrate 20 (counter substrate) are bonded together with a sealant 103 with a predetermined gap therebetween.

[0012] The sealant 103 is an adhesive made of a photocurable resin, a thermosetting resin, or the like. The sealant 103 is provided in a frame shape along the outer edge of the second substrate 20. A liquid crystal layer 50 is provided in the area surrounded by the sealant 103 between the first substrate 10 and the second substrate 20. The sealant 103 may have a discontinuous portion (not shown) that is used as a liquid crystal injection port. After the liquid crystal is injected, the discontinuous portion is sealed with a sealing material.

[0013] The first substrate 10 and the second substrate 20 are each quadrangular in plan view. The first substrate 10, the second substrate 20, and the display area 10A at approximately the center of the liquid crystal device 100 are rectangular in plan view. Here, in the liquid crystal panel 100p, the direction along the long side is defined as the X-axis direction, and the direction along the short side is defined as the Y-direction. In accordance with this shape, the sealant 103 is provided in an approximately rectangular shape in accordance with the shape of the display area 10A. A rectangular frame-shaped peripheral area 10B is provided between the inner peripheral edge 103a of the sealant 103 and the outer peripheral edge 10a of the display area 10A.

[0014] An adsorption layer 102 containing xerogel is provided on the outer periphery of the peripheral region 10B. The adsorption layer 102 is mounted so as to contact the inner periphery 103a of the seal material 103. In the adsorption layer 102, ionic impurities generated by the exposure of the liquid crystal material of the liquid crystal layer 50 to light come into contact with or pass through the adsorption layer 102 made of xerogel, so that only the ionic impurities are selectively adsorbed. The degradation products to be chemically captured can be adjusted by the difference in the functional groups of the gel that is the base of the xerogel. In addition, the liquid crystal material itself is not physically adsorbed by the xerogel by controlling the gel structure.

[0015] The first substrate 10 has a light-transmitting substrate body 10w made of quartz, glass, or the like. Outside the display region 10A, on one surface 10s of the first substrate 10 facing the second substrate 20 side, a data line driving circuit 11 and a plurality of terminals 12 are formed along one first side 10c extending in the X-axis direction of the first substrate 10. A scanning line driving circuit 13 is formed adjacent to the first side 10c on the one surface 10s of the first substrate 10 and along a pair of second sides 10d extending in the Y-axis direction. A flexible wiring board 14 is connected to the plurality of terminals 12. Various electric potentials and various signals are input to the first substrate 10 via the flexible wiring board 14.

[0016] Here, when describing layers formed on the first substrate 10, the upper layer side or surface side means the side opposite to the side where the substrate body 10w of the first substrate 10 is located (the side where the second substrate 20 and the liquid crystal layer 50 are located), and the lower layer side means the side where the substrate body 10w of the first substrate 10 is located. When describing layers formed on the second substrate 20, the upper layer side or surface side means the side opposite to the side where the substrate body 20w of the second substrate 20 is located (the side where the first substrate 10 and the liquid crystal layer 50 are located), and the lower layer side means the side where the substrate body 20w of the second substrate 20 is located.

[0017] A plurality of light-transmitting pixel electrodes 9A made of an ITO (indium tin oxide) film or the like and transistors (not shown) electrically connected to each of the plurality of pixel electrodes 9A are formed in a matrix in the display region 10A on one surface 10s of the first substrate 10. A first inorganic alignment film 16 is formed on the upper layer side of the pixel electrodes 9A.

[0018] 2 and 3, on one surface 10s of the first substrate 10, dummy pixel electrodes 9B are formed simultaneously with the pixel electrodes 9A in a rectangular frame-shaped peripheral region 10B sandwiched between the display region 10A and the adsorption layer 102. In FIG. 2, two rows of dummy pixel electrodes 9B are shown per side. The dummy pixel electrodes 9B may be formed in one row or three or more rows.

[0019] As shown in FIG. 2, the second substrate 20 has a substrate body 20w made of quartz, glass, or the like. A light-transmitting common electrode 21 made of an ITO film is formed on the surface (one side 20s) of the substrate body 20w facing the first substrate 10 via an insulating film 22 described later. The common electrode 21 is formed over the entire surface of the second substrate 20. A light-shielding layer 29 is formed on the lower layer side of the common electrode 21 on the one side 20s side of the second substrate 20. The light-shielding layer 29 is interposed between the one side 20s of the second substrate 20 and the common electrode 21. A second inorganic alignment film 26 is laminated on the surface of the common electrode 21 facing the liquid crystal layer 50 (see FIG. 3). A light-transmitting insulating film 22 is formed between the light-shielding layer 29 and the common electrode 21. The light-shielding layer 29 forms a frame portion extending along the outer periphery of the display area 10A. That is, the outer edge of the display area 10A is defined by the inner edge of the light-shielding layer 29. The light-shielding layer 29 is formed at a position overlapping with the dummy pixel electrodes 9B in a plan view. The light-shielding layer 29 may be formed to include a black matrix portion (not shown) overlapping an inter-pixel region sandwiched between adjacent pixel electrodes 9A. In addition, in the second substrate 20, lenses may be formed in regions overlapping with each of the multiple pixel electrodes 9A in a plan view.

[0020] 1, an inter-substrate conduction electrode 105A for electrical conduction between the first substrate 10 and the second substrate 20 is formed in an area of ​​the first substrate 10 that overlaps with a corner portion of the second substrate 20 outside the sealing material 103 in a plan view. An inter-substrate conductive material 105B containing conductive particles is disposed on the inter-substrate conduction electrode 105A. The common electrode 21 of the second substrate 20 is electrically connected to the first substrate 10 via the inter-substrate conduction electrode 105A and the inter-substrate conductive material 105B. Therefore, a common potential is applied to the common electrode 21 from the first substrate 10 side.

[0021] [Specific configuration of liquid crystal device] As shown in FIG. 3, both the first inorganic alignment film 16 and the second inorganic alignment film 26 are made of obliquely evaporated films of silicon oxide film (SiOx (x<2)), (SiO2), titanium oxide film (TiO2), magnesium oxide film (MgO), aluminum oxide film (Al2O3), indium oxide (In2O3), diantimony trioxide (Sb2O3), tantalum pentoxide (Ta2O5), etc. Therefore, the first inorganic alignment film 16 and the second inorganic alignment film 26 have a columnar structure in which a plurality of convex parts 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 (liquid crystal material 55) such as nematic liquid crystal molecules with negative dielectric anisotropy used in the liquid crystal layer 50, the long axis of the liquid crystal material 55 can be pretilted obliquely from the normal line to the first substrate 10 and the second substrate 20. In this embodiment, the first inorganic alignment film 16 and the second inorganic alignment film 26 are both made of SiO2 films formed by oblique deposition.

[0022] The first inorganic alignment film 16 and the second inorganic alignment film 26 are formed on substantially the entire surfaces of the first substrate 10 and the second substrate 20, respectively. On the surfaces of the first inorganic alignment film 16 and the second inorganic alignment film 26 facing the liquid crystal layer 50, organic silane compound layers 17 and 27 are laminated. Therefore, the silanol groups of the first inorganic alignment film 16 and the second inorganic alignment film 26 are not in contact with the liquid crystal layer 50. This makes it difficult for photochemical reactions to occur between the silanol groups of the first inorganic alignment film 16 and the second inorganic alignment film 26 and the liquid crystal layer 50, thereby improving the reliability of the liquid crystal device 100.

[0023] More specifically, on the surface of the first inorganic alignment film 16, there are dangling bonds of Si atoms and dimer structures (Si-Si bonds) in which Si atoms are bonded to each other, and such dangling bonds of Si atoms are easily terminated by silanol groups (-Si-OH) due to reactions with moisture in the liquid crystal or atmosphere. Here, silanol groups are highly reactive. However, in this embodiment, an organic silane compound layer 17 is bonded to the hydroxyl group (-OH) portion of the surface of the first inorganic alignment film 16 by a silane coupling agent such as organic siloxane (decyltrimethoxysilane). Therefore, the silanol groups of the first inorganic alignment film 16 are not in contact with the liquid crystal layer 50.

[0024] The silane coupling agent used here generates silanols (Si-OH) by hydrolysis, and then the silanols gradually condense with each other to generate siloxane bonds (Si-O-Si), forming the organic silane compound layer 17. The silane coupling agent also generates strong bonds with the inorganic oxide surface of the first inorganic alignment film 16 and the like, forming a self-assembled monolayer. Examples of such silane coupling agents include n-hexyltrimethoxysilane, n-hexyltriethoxysilane, cyclohexylmethyldimethoxysilane, n-octyltriethoxysilane, and n-decyltrimethoxysilane. The silane coupling agent may also be one containing a fluorine atom (F) in the hydrophobic organic functional group R. In any case where any silane coupling agent is used, the organic silane compound layer 17 has water repellency. The organic silane compound layer 27 formed on the side of the second inorganic alignment film 26 also has a similar structure to the organic silane compound layer 17. Therefore, the adsorption layer 102 is provided between the first inorganic alignment film 16 and the second inorganic alignment film 26 so as to surround the liquid crystal layer 50, and a sealing material 103 is provided on the side that is not in contact with the liquid crystal layer 50, thereby bonding the first substrate 10 and the second substrate 20 together.

[0025] [Method of manufacturing liquid crystal device] In manufacturing the liquid crystal device 100 of this embodiment, in the first manufacturing method, for example, a bonding process is performed on the first substrate 10 and the second substrate 20 in the form of large mother substrates, and then the mother substrate for the second substrate 20 is cut to expose the liquid crystal injection port. Next, a liquid crystal injection process is performed, followed by a sealing process, and then the mother substrate for the first substrate 10 is cut along the planned division lines to obtain a liquid crystal device 100 of a single size.

[0026] In the second manufacturing method, the first substrate 10 alone is formed as a large mother substrate, and then the second substrate 20 of a single size is bonded to the mother substrate. Next, a liquid crystal injection process is performed, followed by a sealing process, and then the mother substrate is cut along the planned division lines to obtain a single size liquid crystal device 100.

[0027] Next, the operation of the liquid crystal device 1 will be described.

[0028] 1 to 3, the liquid crystal device 100 of this embodiment includes a first substrate 10, a second substrate 20, a sealant 103 disposed between the first substrate 10 and the second substrate 20 and on the outer periphery in a planar view, a liquid crystal layer 50 disposed between the first substrate 10 and the second substrate 20 and on the inside surrounded by the sealant 103 in a planar view, and an adsorption layer 102 containing xerogel disposed along at least a part of the sealant 103. Thus, in this embodiment, by disposing the adsorption layer 102 containing xerogel outside the display region 10A of the liquid crystal panel 100p, ionic impurities generated due to deterioration of the liquid crystal can be removed.

[0029] For example, in a liquid crystal device 100 mounted on a projection display device or the like, when strong light from a light source is incident on the display area 10A, the liquid crystal in the display area 10A is heated. The specific gravity of the heated liquid crystal decreases and it diffuses from the center of the display area 10A to the periphery. In particular, small ionic impurities generated by strong light hitting the liquid crystal have high mobility and diffuse faster than the liquid crystal. This allows the ionic impurities to be efficiently captured by the adsorption layer 102. Therefore, the concentration of ionic impurities in the liquid crystal in the display area 10A can be kept low. Therefore, when an image is displayed, display unevenness such as stains caused by aggregation of ionic impurities at the corners of the display area 10A is less likely to occur. Furthermore, even if the liquid crystal in the display area 10A is deteriorated by a photochemical reaction caused by light from the light source, the time until the entire liquid crystal in the display area 10A is deteriorated can be extended.

[0030] In this manner, in the liquid crystal device 100 of the present embodiment, by arranging the adsorption layer 102 containing xerogel on the inner peripheral edge 103a of the sealant 103 on the liquid crystal layer 50 side, when strong light from the light source penetrates the liquid crystal layer 50, the liquid crystal is heated, its specific gravity decreases, and the ionic impurities that move as the liquid crystal diffuses from the center of the display area 10A to the periphery can be captured by the xerogel of the adsorption layer 102, and the influence of deterioration of the liquid crystal can be reduced without increasing the size of the liquid crystal panel 100p. In other words, in the present embodiment, it is no longer necessary to secure space for arranging a circulation flow path for circulating ionic impurities as in the conventional case, and it is possible to enlarge the display area 10A and reduce the size of the liquid crystal panel 100p as described above.

[0031] Furthermore, since there is no need to consider degradation of the gel due to light and its effect on the liquid crystal, it is possible to manufacture liquid crystal panels that require high light resistance, such as liquid crystal panels for projectors.

[0032] Furthermore, in the liquid crystal device 100 of this embodiment, the mounting method can be freely determined depending on the method for producing the hydrogel or organogel that is the base of the xerogel. For example, a thin gel film can be obtained by coating a glass substrate with a gel solution and then producing the gel. By patterning this with UV light or the like, it is possible to place the gel around the display area 10A as in this embodiment (see the modified example described later) or to place the gel between the pixels of the liquid crystal panel 100p as in the second and third embodiments described later.

[0033] According to at least one of the embodiments described above, by placing the xerogel of the adsorption layer 102 outside the display area 10A of the liquid crystal panel 100p, ionic impurities caused by deterioration of the liquid crystal can be removed by the xerogel, and the effects of deterioration of the liquid crystal can be reduced without increasing the size of the liquid crystal panel 100p.

[0034] Next, other embodiments and modifications of the liquid crystal device and electronic device according to the embodiment will be described. Note that components having the same functions as those in the first embodiment are given the same reference numerals, and detailed descriptions of these components will be omitted to avoid duplication.

[0035] [Modification of the first embodiment] Fig. 4 is a cross-sectional view showing a typical example of a specific configuration of a pixel of a liquid crystal device 100A according to a modification of the first embodiment, and corresponds to Fig. 3 of the first embodiment. As shown in Fig. 4, an adsorption layer 102A is provided so as to surround the outer periphery of a sealant 103. The other configurations are the same as those of the first embodiment.

[0036] An adsorption layer 102A containing xerogel is provided on the outer periphery of the peripheral region 10B. The adsorption layer 102A according to the modified example is mounted so as to be in contact with the outer periphery 103b of the sealant 103. The function of the adsorption layer 102A is the same as that of the first embodiment. That is, in the adsorption layer 102A, ionic impurities generated when the liquid crystal material of the liquid crystal layer 50 is exposed to light come into contact with or pass through the adsorption layer 102A, and thus only the ionic impurities are selectively adsorbed.

[0037] In the liquid crystal device 100A according to this modified example configured as described above, when diffused ionic impurities come into contact with the sealant 103, as in the first embodiment, some of the ionic impurities seep out from the sealant 103 and come into contact with the adsorption layer 102A, and are thereby encapsulated in the adsorption layer 102A. That is, by arranging the adsorption layer 102A containing xerogel on the outer peripheral edge 103b of the sealant 103, when strong light from the light source penetrates the liquid crystal layer 50, the liquid crystal is heated, its specific gravity decreases, and the ionic impurities that move as the liquid crystal diffuses from the center of the display region 10A to the periphery can be captured by the xerogel of the adsorption layer 102A, thereby reducing the effects of deterioration of the liquid crystal without increasing the size of the liquid crystal panel 100p.

[0038] In addition, in this modified example, since the adsorption layer 102A is provided in the peripheral region of the sealant 103, in addition to preventing deterioration of the adsorption layer 102A due to strong light, deterioration of the liquid crystal caused by the adsorption layer 102A can be prevented.

[0039] [Second embodiment] Next, a liquid crystal device according to the second embodiment will be described in detail. FIG. 5 is a cross-sectional view showing a specific configuration example of a pixel of a liquid crystal device 100B according to the second embodiment, and corresponds to FIG. 3 of the first embodiment described above. As shown in FIG. 5, in the liquid crystal device 100B of the second embodiment, a dummy pixel electrode 9B formed simultaneously with the pixel electrode 9A is formed in a rectangular frame-shaped peripheral region 10B sandwiched between the display region 10A and the sealant 103. An adsorption layer 102B is provided between the pixel electrode 9A and the dummy pixel electrode 9B. The adsorption layer 102B is disposed closer to the first substrate 10 than the first inorganic alignment film 16 and the organic silane compound layer 17. The first inorganic alignment film 16 and the organic silane compound layer 17 are not provided on the upper part of the adsorption layer 102B on the liquid crystal layer 50 side. The other configurations are the same as those of the first embodiment.

[0040] In addition, while FIG. 5 shows a configuration in which the adsorption layer 102B is provided only between the pixel electrode 9A and the dummy pixel electrode 9B, the adsorption layer 102B may be provided between the pixel electrodes 9A, 9A as in the third embodiment described later.

[0041] According to the liquid crystal device 100B of the second embodiment, when strong light from a light source penetrates the liquid crystal layer 50, the liquid crystal is heated, the specific gravity of the liquid crystal decreases, and the ionic impurities that move as the liquid crystal diffuses from the center to the periphery of the display region 10A can be captured by the xerogel of the adsorption layer 102B, and the influence of deterioration of the liquid crystal can be reduced without increasing the size of the liquid crystal panel 100p. Moreover, in the second embodiment, by providing the adsorption layer 102B between the pixel electrode 9A and the dummy pixel electrode 9B, the contact area with the liquid crystal layer 50 can be increased, and ionic impurities can be efficiently adsorbed.

[0042] Furthermore, in the second embodiment, there is no need to secure space to place a circulation flow path for circulating ionic impurities as in the conventional method, and it is possible to enlarge the display area 10A as described above and reduce the size of the liquid crystal panel 100p.

[0043] Furthermore, in this case, since the adsorption layer 102B is provided only in a small region between the pixel electrode 9A and the dummy pixel electrode 9B, deterioration of the adsorption layer 102B itself due to light can also be suppressed.

[0044] Furthermore, in the liquid crystal device 100B according to this embodiment, the adsorption layer 102B is positioned closer to the first substrate 10 than the first inorganic alignment film 16 and the organosilane compound layer 17, and is positioned so as not to overlap the first inorganic alignment film 16 or the organosilane compound layer 17 in a planar view, thereby making it easier for the adsorption layer 102B to come into contact with the liquid crystal layer 50 and enabling it to efficiently adsorb ionic impurities.

[0045] [Third embodiment] Next, the liquid crystal device according to the third embodiment will be described in detail. Fig. 6 is an exploded perspective view showing a configuration example of a transmissive TFT liquid crystal display (liquid crystal display 200) according to the third embodiment. As shown in Fig. 6, the liquid crystal display 200 (liquid crystal device) according to the third embodiment includes a backlight source 201, a first polarizing plate 202A, a second polarizing plate 202B, a first glass substrate 203A, a second glass substrate 203B, a color filter 204, and a liquid crystal layer 50.

[0046] The first polarizing plate 202A is provided on a surface facing the first glass substrate 203A of the backlight source 201. The backlight source 201 emits light 201L toward the first polarizing plate 202A. The color filter 204 is provided on a surface facing the second glass substrate 203B of the second polarizing plate 202B. The first glass substrate 203A and the second glass substrate 203B are provided between the first polarizing plate 202A and the color filter 204, respectively. In this embodiment, the color filter 204 is configured to have three color filters of RGB arranged side by side. Note that the color filter is not limited to the three colors of RGB, and may be configured to have color filters of multiple colors other than the three colors arranged side by side, or may be a single-color color filter.

[0047] On the surface 203a of the first glass substrate 203A facing the second glass substrate 203B, a plurality of pixel electrodes 205A (first pixel electrode, second pixel electrode) are arranged vertically and horizontally, each of which is provided with a TFT. On the surface 203b of the second glass substrate 203B facing the first glass substrate 203A, a counter electrode 205B is provided. A liquid crystal layer 50 is sandwiched between the first glass substrate 203A and the second glass substrate 203B. On the surface 203a of the first glass substrate 203A facing the second glass substrate 203B, a gel film 207 (adsorption layer) is patterned between the pixel electrodes 205A, 205A.

[0048] In the liquid crystal display 200 according to the third embodiment, when strong light from a light source penetrates the liquid crystal layer 50, the liquid crystal is heated, the specific gravity decreases, and ionic impurities move as the liquid crystal diffuses from the center of the display region 10A to the periphery. The ionic impurities can be collected by the gel film 207 patterned between the pixel electrodes 205A, 205A, and the influence of deterioration of the liquid crystal can be reduced without increasing the size of the liquid crystal panel 100p. In the third embodiment, the gel film 207 forming an adsorption layer is provided between the pixel electrodes 205A, 205A, so that the contact area with the liquid crystal layer 50 can be increased and ionic impurities can be efficiently adsorbed.

[0049] Furthermore, in the third embodiment, there is no need to secure space to place a circulation flow path for circulating ionic impurities as in the conventional method, and it is possible to enlarge the display area 10A as described above and reduce the size of the liquid crystal panel 100p.

[0050] Furthermore, in the liquid crystal display 200 according to the third embodiment, the concentration of ionic impurities in the liquid crystal layer 50 can be kept low. Therefore, even if the liquid crystal deteriorates due to a photochemical reaction caused by light from the backlight source 201, the time until the entire liquid crystal of the liquid crystal layer 50 deteriorates can be extended. Moreover, by disposing the gel film 207 in a film shape between the pixel electrodes 205A, rather than on the entire first glass substrate 203A, photodeterioration of the gel due to the electrode reaction can be reduced.

[0051] Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope of the invention and its equivalents described in the claims, as well as in the scope and spirit of the invention.

[0052] In the first embodiment described above, the adsorption layer 102 is disposed on the inner peripheral edge 103a of the sealing material 103, and in the modified example, the adsorption layer 102A is disposed on the outer peripheral edge 103b of the sealing material 103, but the position of the adsorption layer on the sealing material 103 is not limited to this. For example, the adsorption layer may be disposed on a corner of the sealing material 103.

[0053] Moreover, the adsorption layer 102B in the second embodiment may be arranged at a position overlapping the light blocking layer 29 arranged between the pixel electrode 9A and the dummy pixel electrode 9B in plan view.

[0054] The electronic device equipped with the liquid crystal device to which the present invention is applied is not limited to the projection type display device of the above embodiment. The liquid crystal device to which the present invention is applied may be used in electronic devices such as a projection type HUD (head-up display) or HMD (head-mounted display), a personal computer, a digital still camera, and a liquid crystal television.

[0055] A liquid crystal device according to one aspect of the present invention may have the following configuration. An input device of one embodiment of the present invention comprises a first substrate, a second substrate, a sealing material arranged on the periphery between the first substrate and the second substrate in a planar view, a liquid crystal layer arranged between the first substrate and the second substrate and inside the sealing material in a planar view, and an adsorption layer including a xerogel arranged along at least a portion of the sealing material.

[0056] In the input device according to one aspect of the present invention, the adsorption layer may be disposed on a side of the sealant facing the liquid crystal layer.

[0057] In the liquid crystal device according to one aspect of the present invention, the adsorption layer may be disposed on a side surface of the sealant opposite to the liquid crystal layer.

[0058] In the liquid crystal device according to one aspect of the present invention, the adsorption layer may be arranged at a corner of the sealant.

[0059] A liquid crystal device according to one embodiment of the present invention comprises a first substrate, a second substrate, a sealing material arranged on the outer periphery between the first substrate and the second substrate in a planar view, a liquid crystal layer arranged between the first substrate and the second substrate and inside the sealing material in a planar view, a pixel electrode arranged between the first substrate and the liquid crystal layer, a dummy pixel electrode arranged on the sealing material side of the pixel electrode, and an adsorption layer containing xerogel arranged between the pixel electrode and the dummy pixel electrode in a planar view.

[0060] In the liquid crystal device according to one aspect of the present invention, the first substrate may have an alignment film, and the adsorption layer may be disposed closer to the first substrate than the alignment film.

[0061] In the liquid crystal device according to one aspect of the present invention, the first substrate may have an alignment film, and the adsorption layer may be disposed at a position not overlapping with the alignment film.

[0062] In the liquid crystal device according to one aspect of the present invention, the adsorption layer may be arranged at a position overlapping a light blocking layer arranged between the pixel electrode and the dummy pixel electrode in a plan view.

[0063] A liquid crystal device of one embodiment of the present invention comprises a first substrate, a second substrate, a liquid crystal layer disposed between the first substrate and the second substrate, a first pixel electrode disposed between the first substrate and the liquid crystal layer, a second pixel electrode disposed between the first substrate and the liquid crystal layer and arranged alongside the first pixel electrode in a planar view, and an adsorption layer containing a xerogel disposed between the first pixel electrode and the second pixel electrode in a planar view.

[0064] In the liquid crystal device according to one aspect of the present invention, the first substrate may have an alignment film, and the adsorption layer may be disposed closer to the first substrate than the alignment film.

[0065] In the liquid crystal device according to one aspect of the present invention, the first substrate may have an alignment film, and the adsorption layer may be disposed at a position not overlapping with the alignment film.

[0066] In the liquid crystal device according to one aspect of the present invention, the adsorption layer may be disposed at a position overlapping a light blocking layer disposed between the first pixel electrode and the second pixel electrode.

[0067] An electronic device according to an aspect of the present invention may have the following configuration. An electronic device according to one aspect of the present invention includes the liquid crystal device according to the above aspect. [Explanation of symbols]

[0068] 9A...pixel electrode, 9B...dummy pixel electrode, 10...first substrate, 10A...display area, 10B...peripheral area, 10w...first substrate body, 11...data line driving circuit, 12...terminal, 13...scanning line driving circuit, 14...flexible wiring substrate, 16...first inorganic alignment film, 17...organosilane compound layer, 19...first substrate body, 20...second substrate, 20w...second substrate body, 21...common electrode, 26...second inorganic alignment film, 27...organosilane compound layer, 29...light-shielding layer, 50...liquid crystal layer, 55...liquid crystal material, 100, 110A, 110B...liquid crystal device, 100p ...liquid crystal panel, 102, 102A, 102B, 102C...adsorption layer, 103...sealing material, 103a...inner periphery, 103b...outer periphery, 105A...electrode for conducting between substrates, 105B...conductive material between substrates, 200...TFT liquid crystal display (liquid crystal device), 201...backlight light source, 201L...light, 202A...first polarizing plate, 202B...second polarizing plate, 203A...first glass substrate, 203B...second glass substrate, 204...color filter, 205A...pixel electrode (first pixel electrode), 205B...counter electrode, 206...TFT, 207...gel film

Claims

1. A first substrate having a first inorganic alignment film and a first organic silane compound layer arranged to cover the first inorganic alignment film; a second substrate having a second inorganic alignment film and a second organic silane compound layer disposed so as to cover the second inorganic alignment film; a sealant disposed between the first substrate and the second substrate; a liquid crystal layer disposed between the first substrate and the second substrate and inside the sealing material in a plan view; an adsorption layer including a xerogel, the adsorption layer being disposed along a side surface of the sealing material on the liquid crystal layer side and being disposed so as to be in contact with a side surface of the first inorganic alignment film, a side surface of the first organic silane compound layer, a side surface of the second inorganic alignment film, and a side surface of the second organic silane compound layer; A liquid crystal device comprising:

2. The adsorption layer is disposed at a corner of the sealing material.

2. The liquid crystal device according to claim 1.

3. a first substrate; A second substrate; a sealant disposed between the first substrate and the second substrate; a liquid crystal layer disposed between the first substrate and the second substrate and within an area surrounded by the sealing material in a plan view; a pixel electrode disposed between the first substrate and the liquid crystal layer; a dummy pixel electrode disposed closer to the sealing material than the pixel electrode; an adsorption layer including a xerogel, the adsorption layer being disposed between the pixel electrode and the dummy pixel electrode in a plan view; A liquid crystal device comprising:

4. the first substrate has an alignment film; the adsorption layer is disposed closer to the first substrate than the alignment film; 4. The liquid crystal device according to claim 3.

5. the first substrate has an alignment film; the adsorption layer is disposed at a position where it does not overlap with the alignment film; 4. The liquid crystal device according to claim 3.

6. the adsorption layer is disposed at a position overlapping a light-shielding layer disposed between the pixel electrode and the dummy pixel electrode in a plan view; 4. The liquid crystal device according to claim 3.

7. a first substrate; A second substrate; a liquid crystal layer disposed between the first substrate and the second substrate; a first pixel electrode disposed between the first substrate and the liquid crystal layer; a second pixel electrode disposed between the first substrate and the liquid crystal layer and arranged alongside the first pixel electrode in a plan view; an adsorption layer including a xerogel, the adsorption layer being disposed between the first pixel electrode and the second pixel electrode in a plan view and between the first substrate and the liquid crystal layer; A liquid crystal device comprising:

8. the first substrate has an alignment film; the adsorption layer is disposed closer to the first substrate than the alignment film; 8. The liquid crystal device according to claim 7.

9. the first substrate has an alignment film; the adsorption layer is disposed at a position where it does not overlap with the alignment film; 8. The liquid crystal device according to claim 7.

10. the adsorption layer is disposed at a position overlapping a light-shielding layer disposed between the first pixel electrode and the second pixel electrode; 8. The liquid crystal device according to claim 7.

11. An electronic device comprising the liquid crystal device according to claim 1 .

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