JP2006098683A - Electro-optical device, manufacturing method thereof, and electronic apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent reduction of display quality in an electro-optical device. <P>SOLUTION: Adhesive layers (16 and 26) are disposed between an electro-optical panel (200), having a display image displayed on an image display area thereof and transparent plate members (15 and 16) arranged facing the electro-optical panel. The adhesive layers consist of first portions (16A and 26A) which are provided in one position between the electro-optical panel and the transparent plate members and have a first adhesive strength for fixing the transparent plate members to the electro-optical panel and of second portions (16B and 26B), which are provided around the first portions and have a second adhesive strength weaker than the first adhesive strength. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an electro-optical device including an electro-optical panel such as a liquid crystal device, a method for manufacturing the electro-optical device, and an electronic apparatus such as a projection display device to which the electro-optical device is applied as a light valve. .

  This type of electronic apparatus includes, for example, an electro-optical device as a light valve, modulates projection light from a light source, and projects it as a display image. The electro-optical device includes an electro-optical panel having a light modulation function such as a liquid crystal device, and various transparent plate members are opposed to each other on the display surface. That is, an optical plate member such as a polarizing plate, a microlens array plate, a dustproof glass plate, a heat radiating glass plate for suppressing the temperature rise of the electrooptic device, and dust attached to the substrate surface are disposed on the outer surface of the electrooptic panel. Various transparent plate members such as a defocus glass plate for defocusing are attached.

  These transparent plate members are affixed to the electro-optical panel using a photo-curing or thermosetting adhesive. In this case, the adhesive is generally applied to the entire surface of the electro-optical panel by spin coating or the like, and is cured after being bonded. Thereafter, the electro-optical panel to which the transparent plate member and other members are attached is enclosed in a light-shielding case, and the electro-optical device is completed.

  In such an electro-optical device, contrast abnormality with time may occur. Patent Document 1 discloses a technique for preventing such image quality deterioration. That is, the contrast abnormality is caused by stress concentration in the vicinity of the boundary between the image display region and the peripheral region or deformation of the substrate caused by the deterioration of the adhesive with time. Therefore, by disposing the adhesive around the image display area, it is possible to prevent the adhesive from being deteriorated due to the display light being irradiated to the adhesive during use of the electro-optical device.

JP 2001-201736 A

  However, the technique of Patent Document 1 has a technical problem in that display spots caused by stress generated when the adhesive is cured cannot be reduced. When the linear expansion coefficients of the electro-optical panel and the transparent plate member such as dust-proof glass are different, relative displacement or stress concentration occurs between them due to heat supplied when the adhesive is cured. That is, display spots occur as a result of a change in the distance between the electro-optical panel and the transparent plate member or partial optical anisotropy due to stress.

  The present invention has been made in view of the above problems, and provides an electro-optical device capable of preventing deterioration of display quality, a manufacturing method thereof, and an electronic apparatus including such an electro-optical device. This is the issue.

  In order to solve the above problems, an electro-optical device of the present invention includes an electro-optical panel in which a display image is displayed in an image display area, a transparent plate member disposed to face the electro-optical panel, and the electro-optical panel. And an adhesive layer that is disposed in a part between the transparent plate member and not disposed in the other part.

  According to the electro-optical device of the present invention, the electro-optical panel and the transparent plate member are bonded together via the adhesive layer. The transparent plate member is bonded to one side or both sides of the surface of the electro-optical panel. The “transparent plate member” in the present invention means a transparent plate-like member mounted on the electro-optical panel. For example, an optical plate member such as a polarizing plate, a microlens array plate, a dustproof glass plate, and a heat dissipation glass. A plate, a glass plate for defocusing, etc. correspond to this. Moreover, the transparent plate member may have a plurality of functions among such various functions.

  The adhesive layer occupies only one place between the electro-optical panel and the transparent plate member. For this reason, the electro-optical panel and the transparent plate member are fixed to each other by the adhesive layer, while displacement from the fixed region is allowed. Therefore, the electro-optical panel and the transparent plate member bonded together by this adhesive layer are, for example, when the thermal expansion occurs during curing when the adhesive layer is a curable adhesive or when driving with display light irradiation. The occurrence of stress and strain is alleviated by displacing each unbonded portion. In addition, since the electro-optical panel and the transparent plate member are fixed to the adhesive layer, a change in the interval, that is, a displacement in the normal direction of the facing surface is suppressed, and a displacement in the in-plane direction of the facing surface occurs.

  The portion other than the adhesive layer between the electro-optical panel and the transparent plate member may be filled with a transparent medium having the same or similar refractive index as that of the adhesive and being more plastic or viscous than the adhesive layer. However, it can be simply filled with air.

  In the electro-optical device having such a configuration, stress generated between the two due to thermal expansion, such as when a transparent plate member is attached to the electro-optical panel, or distortion caused by the stress is generated by the electro-optical panel or the transparent plate. It is relieved by the displacement in the in-plane direction of the opposing surface of the member. Therefore, the transparent plate member and the electro-optical panel have little or no optical anisotropy due to stress or distortion, and prevent deterioration of display quality such as color unevenness when the electro-optical device is driven. Is possible.

  In order to solve the above problems, another electro-optical device of the present invention includes an electro-optical panel in which a display image is displayed in an image display area, a transparent plate member disposed to face the electro-optical panel, and the electric A first plate disposed between the optical panel and the transparent plate member, and provided at one location between the electro-optical panel and the transparent plate member, for fixing the transparent plate member to the electro-optical panel; An adhesive layer including a first part having one adhesive force and a second part provided around the first part and having a second adhesive force weaker than the first adhesive force.

  In this electro-optical device, the adhesive layer includes two parts having different adhesive forces, that is, a first part and a second part. Among these, in the first portion, the transparent plate member is generally bonded and fixed to the electro-optical panel. This first portion occupies only one location in the adhesive layer. The second part occupies the periphery of the first part. In the second portion, the transparent plate member is not so strongly bonded and fixed to the surface of the electro-optical panel. The “second part” here may be a part that exists around the first part and has a lower adhesive strength than the first part. For example, the “second part” is subdivided into a plurality of parts having different adhesive strengths and materials. May be.

  For this reason, the electro-optical panel and the transparent plate member are fixed to each other in the first portion of the adhesive layer, while displacement from the fixed region is allowed. Therefore, even if the electro-optical panel and the transparent plate member bonded together by the adhesive layer thermally expand, for example, when the adhesive layer is a curable adhesive or when it is driven by display light irradiation. Since the portions corresponding to the respective second portions are displaced, the generation of stress and strain is alleviated. In addition, since the electro-optical panel and the transparent plate member are partially fixed in a state of facing each other, in the above case, the change in the interval, that is, the displacement in the normal direction of the facing surface is suppressed, Displacement in the in-plane direction of the opposing surface occurs.

  In the electro-optical device having such a configuration, the stress generated between the electro-optical panel and the transparent plate member due to thermal expansion of the electro-optical panel or the transparent plate member, or the distortion caused by the stress, is generated on the opposing surface of the transparent plate member. Relieved by displacement in the in-plane direction. Accordingly, little or no optical anisotropy occurs in the transparent plate member or the electro-optical panel, and it is possible to prevent deterioration in display quality such as color unevenness when the electro-optical device is driven.

  In an aspect of the electro-optical device according to the aspect of the invention, the first portion is provided in the center of a region where the electro-optical panel and the transparent plate member face each other.

  According to this aspect, each of the electro-optical panel and the transparent plate member can be displaced isotropically in the opposing surface starting from the center of the region facing each other at the time of thermal expansion. Therefore, it is possible to prevent the accumulation of stress due to the direction of displacement, reduce the relative displacement amount of both, and suppress the positional deviation between the electro-optical panel and the transparent plate member.

  In another aspect of the electro-optical device according to the aspect of the invention, the adhesive layer includes at least the first portion made of a curable adhesive, and the first portion is hardened more strongly than the second portion by being cured. It is bonded to the optical panel and the transparent plate member.

  According to this aspect, the first portion made of the curable adhesive is cured to bond the transparent plate member to the electro-optical panel more firmly than the second portion. In such an electro-optical device, for example, an adhesive material corresponding to each of the first and second portions is applied to the surface of the electro-optical panel, and the first adhesion is performed so that the adhesive force is different from that of the second region. This is realized by curing the region.

  Here, the second part may not be a curable adhesive, but may be made of a curable adhesive made of the same or different material as the first part. In any case, the first part is cured to develop a stronger adhesive force than the second part, but the adhesive force of the second part is not as strong as the first part, so the electro-optic panel and the transparent plate The mobility of the member is ensured. That is, with such a configuration, the adhesive layer of the present invention can be embodied in a suitable manner.

  In this aspect, the first and second parts may be made of the same curable adhesive, and only the first part may be cured.

  In this case, the difference in the adhesive force between the first part and the second part in the adhesive layer is due to the difference in whether or not the adhesive is cured. That is, although the entire adhesive layer is made of the same curable adhesive, only the first portion is cured. This adhesive layer is formed, for example, by applying one type of curable adhesive on the electro-optical panel and selectively curing only the first portion by spot light irradiation or spot heating. Thereby, a difference can be made in the adhesive force between the first part and the second part. In addition, such an adhesive layer can be formed relatively easily because only one curing process is required.

  Alternatively, the first and second portions may be made of the same curable adhesive material and cured under different curing conditions.

  In this case, the difference in adhesive strength between the first portion and the second portion in the adhesive layer is due to the difference in the curing conditions between the two. That is, although the entire adhesive layer is made of one type of material, the first portion is selectively hardened selectively. For example, the adhesive layer is formed by applying one type of curable adhesive on the electro-optical panel and curing the first and second portions, but the first portion is hardened more firmly than the second portion. It is formed by making a difference in curing conditions between the first part and the second part. Therefore, also in this case, it is possible to make a difference in the adhesive force between the first portion and the second portion.

  In the above case, since the second portion is not cured, it is considered that the adhesive strength may be insufficient depending on the material. In this case, the present embodiment can give sufficient adhesive force to the second portion.

  In this aspect, the first and second portions may be made of different adhesives, and only the first portion may be cured.

  In this case, the difference in the adhesive force between the first portion and the second portion in the adhesive layer is due to the difference in the material between them and the difference in whether or not they are cured. As described above, the first portion is made of a curable adhesive, and the transparent plate member is bonded to the electro-optical panel more firmly than the second portion by being cured. The second part may not be a curable adhesive, but may be made of a curable adhesive made of a material different from that of the first part. Since the second portion needs some flexibility in the sense of ensuring the mobility of the electro-optical panel and the transparent plate member, it is preferable that the second portion is not hardened even if it is curable, or is not curable. . That is, in this case, there is an advantage that the range of material selection is wide for the second portion. Further, since the curing process is only required at one place, the adhesive layer in this case can be formed relatively easily.

  Further, in this aspect, the first and second parts may be made of different curable adhesives and cured under the same curing conditions.

  In this case, the difference in the adhesive force between the first portion and the second portion in the adhesive layer is due to the difference in the degree of curing with respect to a predetermined curing condition. For example, the adhesive layer is formed by applying two types of curable adhesives on the electro-optical panel separately in a first part and a second part, and applying uniform light irradiation or heating to the entire surface of the electro-optical panel. By performing, the first portion and the second portion are formed so as to have a difference in adhesive force. In addition, since the curing step at the time of formation is only once, the adhesive layer in this case can be formed relatively easily.

  Among these, when the first and second parts are made of different adhesives, the display image displayed on the electro-optical panel has a display characteristic difference due to the optical characteristic difference between the first and second parts. The optical characteristics of the first part and the optical characteristics of the second part may be aligned so as not to occur.

  In this case, the first part and the second part are made of different adhesives, but since their optical characteristics such as refractive index and transmittance are uniform, incident light or outgoing light transmitted through the adhesive layer. In the display image formed by the above, a display characteristic difference corresponding to each of the first part and the second part hardly or practically does not occur. Specifically, the presence of the two regions in the adhesive layer is prevented from being reflected in the display image.

  The “display characteristic difference” here refers to the difference between the regions corresponding to the first and second portions of the display image due to the difference in refractive index, transmittance, etc. between the first portion and the second portion. This means a difference in display such as brightness. Here, the optical characteristics of the first part and the optical characteristics of the second part may be aligned so that the difference cannot be discriminated practically. Further, for example, when the first or second portion is cured, the final optical characteristics obtained after the curing are targeted.

  Therefore, in this aspect, display quality can be maintained or prevented from lowering.

  In order to solve the above problems, an electronic apparatus according to the present invention includes the above-described electro-optical device according to the present invention (including various aspects thereof).

  According to the electronic apparatus of the present invention, since the electro-optical device of the present invention described above is provided, it is possible to prevent deterioration in display quality with a simple configuration.

  In order to solve the above problems, an electro-optical device manufacturing method of the present invention includes an electro-optical panel that displays a display image in an image display area, a transparent plate member that is disposed to face the electro-optical panel, and the electric An electro-optical device manufacturing method used for manufacturing an electro-optical device including an optical panel and an adhesive layer disposed between the transparent plate member, the electro-optical device being formed on the electro-optical panel or the transparent plate member A precursor film forming step of forming the precursor film of the adhesive layer in at least one place using a curable adhesive, and an arrangement step of arranging the electro-optic panel and the transparent plate member opposite to each other with the precursor film interposed therebetween, And a curing forming step of curing the one place so as to have an adhesive force stronger than that of the precursor film other than the one place formed around the one place to form the adhesive layer.

  According to the method for manufacturing an electro-optical device of the present invention, the electro-optical panel and the transparent plate member are disposed to face each other with the precursor film of the adhesive layer interposed therebetween, and one place made of a curable adhesive is included in the precursor film. It hardens | cures so that it may have a stronger adhesive force than the other precursor film | membrane formed in the circumference | surroundings. Through the above process, the precursor film becomes an adhesive layer, and the electro-optical panel and the transparent plate member are bonded.

  The adhesive layer formed in this way is provided at one location between the electro-optic panel and the transparent plate member, and is cured to have a stronger adhesive force than the other regions, and the other portions It consists of a second part. Since the first portion is made of a curable adhesive, the transparent plate member can be strongly fixed to the electro-optical panel. On the other hand, the second part may not necessarily be a curable adhesive, but may be configured using a curable adhesive of the same or different material as the first part. In any case, since the adhesive force is inferior to that of the first part in the second part, the mobility of the electro-optical panel and the transparent plate member is ensured.

  For this reason, the electro-optical panel and the transparent plate member are fixed to each other in the first portion of the adhesive layer, while the second portion is allowed to be displaced from the boundary with the first portion. Therefore, even if the electro-optical device is thermally expanded during the curing process or when the display light is irradiated, the portion corresponding to the second portion of one or both of the electro-optical panel and the transparent plate member is displaced. This alleviates the occurrence of stress and strain. In addition, since the electro-optical panel and the transparent plate member are fixed at the first portion, in the above case, the change in the interval, that is, the displacement in the normal direction of the opposing surface is suppressed, and the opposing surface Displacement in the in-plane direction occurs.

  Therefore, according to the method for manufacturing the electro-optical device of the present invention, the stress generated between the electro-optical panel and the transparent plate member due to thermal expansion during the curing formation process or the distortion caused by the stress is transparent. It is relieved by the displacement in the in-plane direction of the opposing surface of the plate member. As a result, in the electro-optical device manufactured by this manufacturing method, little or no optical anisotropy occurs in the transparent plate member or the electro-optical panel, and it is possible to prevent display quality from being deteriorated during driving. .

  According to one aspect of the method for manufacturing an electro-optical device of the present invention, in the precursor film forming step, the precursor film is formed of one kind of curable adhesive, and in the curing formation step, the precursor film includes the Selectively cure only one location.

  According to this aspect, the entire precursor film is formed from the same curable adhesive, but only one of them is selectively cured by, for example, spot light irradiation or spot heating to form an adhesive layer. . That is, here, the difference in the adhesive force between the first part and the second part in the adhesive layer can be realized by the difference in whether or not it is cured.

  As described above, since the curing process is completed at one place, it is possible to form the adhesive layer relatively easily.

  According to another aspect of the method for manufacturing an electro-optical device of the invention, in the precursor film forming step, the precursor film is formed with one kind of curable adhesive, and in the curing formation step, the one place, and Each of the precursor films other than the one place formed around the periphery is cured under different curing conditions.

  According to this aspect, the entire precursor film is formed from the same curable adhesive, and the entire precursor film is cured to form an adhesive layer. However, the curing conditions are different in each of these portions so that one portion of them is hardened more strongly than the other portions. For example, curing conditions such as the intensity of irradiation light may be properly used according to these two parts, or spot light irradiation or spot heating may be performed only at one place separately from the curing process applied to the whole. That is, in this aspect, the difference in adhesive force between the first part and the second part in the adhesive layer can be realized by the difference in curing conditions.

  Moreover, in said manufacturing method, since adhesive layers other than one place firmly adhere | attached are not hardened | cured, it is thought that the adhesive force of the part may be inadequate depending on the material of an adhesive material. In this embodiment, necessary and sufficient adhesive force can be imparted even in such a case.

  According to another aspect of the method for manufacturing an electro-optical device of the present invention, in the precursor film forming step, an adhesive force for bonding the transparent plate member and the electro-optical panel is expressed at the one place. Using a curable adhesive, a precursor film other than the one place formed around the one place, the precursor film is formed using an adhesive that expresses weaker adhesive force than the curable adhesive, In the curing formation step, only the one portion of the precursor film is selectively cured.

  According to this aspect, the precursor film is formed of one part of the curable adhesive, but the other part is any adhesive that expresses weaker adhesive strength than the curable adhesive. You may form with such an adhesive material. And only one place is selectively hardened by, for example, spot light irradiation or spot heating, and an adhesive layer is formed. That is, in this aspect, the difference in the adhesive force between the first part and the second part in the adhesive layer can be realized by the difference in the material between the two and the difference in whether or not to cure.

  Note that the portion corresponding to the second portion of the precursor film requires some flexibility in order to ensure the mobility of the electro-optical panel and the transparent plate member. It is preferable to use an adhesive that is not allowed to cure or is not curable. That is, in this aspect, there is an advantage that the range of material selection is wide for the second portion. Further, since the curing process is completed at one place, the adhesive layer can be formed relatively easily.

  According to another aspect of the method for manufacturing an electro-optical device of the present invention, in the precursor film forming step, the transparent plate member and the electro-optical panel are bonded to each other by being cured under a predetermined condition. The first curable adhesive that expresses the adhesive strength of the first curable adhesive is used, and the precursor film other than the one place formed around the one place is cured under the predetermined condition, whereby the first curable property is obtained. The precursor film is formed using a second curable adhesive that expresses weaker adhesive strength than the adhesive, and the entire surface of the precursor film is cured under the same curing conditions in the curing formation step.

  According to this aspect, the precursor film uses the first curable adhesive having a relatively strong adhesive force after curing at one portion thereof, and the adhesive strength after curing is relatively weak at other portions. (However, under the same curing conditions as the first curable adhesive), the second curable adhesive is used. And the whole precursor film is hardened at once by uniform light irradiation or heating, for example, and an adhesion layer is formed. That is, in this aspect, the difference in the adhesive force between the first part and the second part in the adhesive layer can be realized by the difference in the degree of curing with respect to a predetermined curing condition. In this case, since the curing process is only required once, it is possible to form the adhesive layer relatively easily.

  Such an operation and other advantages of the present invention will become apparent from the embodiments described below.

  Embodiments of the present invention will be described with reference to the drawings.

<First Embodiment>
A first embodiment of the present invention will be described with reference to FIGS.

(Overall configuration of liquid crystal device)
First, the overall configuration of the liquid crystal device according to the first embodiment of the present invention will be described with reference to FIG. 1A and 1B show a configuration of a main part of the liquid crystal device according to the present embodiment, in which FIG. 1A is a plan view and FIG. 1B is a cross-sectional view taken along line AA ′ of FIG.

  1A and 1B, the liquid crystal device 110 is formed by bonding dust-proof glasses 15 and 25 to a liquid crystal panel 200. As will be described later, the liquid crystal panel 200 is configured by disposing the TFT array substrate 10 and the counter substrate 20 so as to face each other with the liquid crystal interposed therebetween. A dustproof glass 15 is adhered to the surface on the TFT array substrate 10 side by an adhesive layer 16, and a dustproof glass 25 is adhered to the surface on the counter substrate 20 side by an adhesive layer 26.

  Here, a case where dust-proof glass is directly attached to the surfaces of the TFT array substrate 10 and the counter substrate 20 will be described. However, the liquid crystal panel 200 has an antireflection plate or a polarizing plate on the surfaces of the TFT array substrate 10 and the counter substrate 20. An optical member such as a plate or a retardation plate may be bonded.

  Further, here, each of the liquid crystal device 110 and the liquid crystal panel 200 corresponds to a specific example of the “electro-optical device” and “electro-optical panel” of the present invention, and the dustproof glasses 15 and 25 are “transparent” of the present invention. This corresponds to a specific example of “plate member”.

  In this liquid crystal device 110, the liquid crystal panel 200 and the dustproof glasses 15 and 25 are firmly bonded at one place (that is, the first portions 16A and 26A) of the adhesive layers 16 and 26, but the surrounding area. (Ie, the second portions 16B and 26B) are relatively weakly bonded.

  The adhesive layer 16 includes two parts having different adhesive forces, that is, a first part 16A and a second part 16B. Here, the first portion 16A and the second portion 16B are made of the same curable adhesive, but only the first portion 16A is cured. 16 A of 1st parts are arrange | positioned in one place in the contact bonding layer 16, the center of area | region R1 where the TFT array substrate 10 and the dust-proof glass 15 face here. And it has the adhesive force for fixing the dust-proof glass 15 to the liquid crystal panel 200 (directly TFT array substrate 10). The second portion 16B occupies the periphery of the first portion 16A. Since the second portion 16B is not cured, the adhesive force is weaker than that of the first portion 16A, and it can be said that the second portion 16B has plasticity or viscosity when applied or close to that compared to the first portion 16A.

  Therefore, as will be described later, the TFT array substrate 10 and the dust-proof glass 15 bonded by the adhesive layer 16 are firmly bonded to each other in the first portion 16A, but in the second region 16B, the first portion 16A and Displacement starting from the boundary of is allowed.

  Here, the boundary between the first portion 16A and the second portion 16B is defined by the degree of curing by spot light irradiation as will be described later. Therefore, depending on the heat conduction state at the time of light irradiation, the degree of curing can be continuously changed between the first portion 16A and the second portion 16B. In such a case, the second portion 16B can be defined as a portion having lower adhesive strength than the central first portion 16A.

  The adhesive layer 26 is configured in the same manner as the adhesive layer 16. That is, the adhesive layer 26 includes a first portion 26A and a second portion 26B made of the same curable adhesive, and only the second portion 26B is cured. 26 A of 1st parts are arrange | positioned in the center of area | region R2 where the opposing board | substrate 20 and the dust-proof glass 25 oppose. The second portion 26B occupies the periphery of the first portion 26A. The counter substrate 20 and the dust-proof glass 25 bonded by the adhesive layer 26 are firmly bonded to each other in the first portion 26A, but the second portion 26B is allowed to be displaced from the boundary with the first portion 26A. Has been. The operation of the adhesive layers 16 and 26 will be described later together with the manufacturing method of the liquid crystal device 110.

(Configuration of electro-optic panel)
Here, the configuration of the liquid crystal panel 200 will be described with reference to FIGS. 2 and 3. 2 is a plan view of the TFT array substrate together with the components formed thereon, as viewed from the counter substrate side, and FIG. 3 is a cross-sectional view taken along line HH ′ of FIG. Here, as an example, a TFT active matrix driving type liquid crystal panel with a built-in driving circuit will be described.

  2 and 3, in the liquid crystal panel 200, the TFT array substrate 10 and the counter substrate 20 are disposed to face each other. A liquid crystal layer 50 is sealed between the TFT array substrate 10 and the counter substrate 20, and the TFT array substrate 10 and the counter substrate 20 are provided with a sealing material 52 provided in a seal region positioned around the image display region 10a. Are bonded to each other.

  The sealing material 52 is made of, for example, an ultraviolet curable resin, a thermosetting resin, or the like for bonding the two substrates together. Further, in the sealing material 52, a gap material such as glass fiber or glass beads for dispersing the distance (inter-substrate gap) between the TFT array substrate 10 and the counter substrate 20 to a predetermined value is dispersed. Such a structure is suitable for a small and enlarged display for a projector light valve. However, if the electro-optical device is a large-sized liquid crystal device that displays an equal magnification, such a gap material may be used for the liquid crystal layer 50. It may be included.

  A light-shielding frame light-shielding film 53 that defines the frame area of the image display area 10 a is provided on the counter substrate 20 inside the sealant 52. However, a part or all of such a frame light shielding film may be provided as a built-in light shielding film on the TFT array substrate 10 side.

  A data line driving circuit 101, a scanning line driving circuit 104, and an external circuit connection terminal 102 are provided in the peripheral area of the image display area 10 a on the TFT array substrate 10, and these are connected to each other by a plurality of wirings 105. Has been. In addition, the TFT array substrate 10 includes a sampling circuit that samples an image signal and supplies the data line to a data line, a precharge circuit that supplies a precharge signal having a predetermined voltage level to the data line prior to the image signal, You may form the inspection circuit etc. which test | inspect the quality of the said electro-optical apparatus at the time of shipment, a defect, etc. In addition, a vertical conductive material 106 that functions as a vertical conductive terminal between the two substrates is disposed on the counter substrate 20.

  In FIG. 3, on the TFT array substrate 10, an alignment film is formed on the pixel electrode 9a after the pixel switching TFT, the scanning line, the data line and the like are formed. On the other hand, a counter electrode 21 is formed on the counter substrate 20, and an alignment film 23 is formed on the uppermost layer portion (the lower surface of the counter substrate 20 in FIG. 3). Further, the liquid crystal layer 50 is made of, for example, a liquid crystal in which one or several types of nematic liquid crystals are mixed, and takes a predetermined alignment state between the pair of alignment films.

(Manufacturing method of liquid crystal device)
Next, a method for manufacturing the liquid crystal device according to the present embodiment will be described with reference to FIGS. Here, FIGS. 4A to 4C correspond to the AA ′ cross section of FIG. 1 and sequentially show the manufacturing process of the liquid crystal device. However, FIG. 4 shows a state in which the top and bottom of FIG. FIG. 5 schematically illustrates a state of the liquid crystal device according to the present embodiment during thermal expansion, and FIG. 6 illustrates a comparative example thereof.

  First, in the process of FIG. 4A, an assembled liquid crystal panel 200 is prepared, and a precursor film 16 ′ is formed on the entire surface of the TFT array substrate 10 with one kind of curable adhesive. The precursor film 16 'may be formed by applying a curable adhesive by spin coating or the like.

  Next, in the step of FIG. 4B, the dust-proof glass 15 is disposed opposite to the TFT array substrate 10 so as to sandwich the precursor film 16 '. Here, since the dust-proof glass 15 has almost the same shape as the TFT array substrate 10, the two are almost exactly overlapped.

  Next, in the process of FIG. 4C, the spotlight SL is irradiated onto the precursor film 16 ′ from the dustproof glass 15 to form the adhesive layer 16, and the dustproof glass 15 is bonded to the TFT array substrate 10.

  The spot light SL is irradiated toward the center of the region where the dust-proof glass 15 and the liquid crystal panel 200 are facing each other, here the dust-proof glass 15 or the central region of the opposing surface of the TFT array substrate 10. In the precursor film 16 ′, only the irradiation region of the spot light SL is selectively cured to form the adhesive layer 16 shown in FIG. That is, although the first portion 16A and the second portion 16B formed here are made of the same curable adhesive, the adhesive force is different depending on whether or not it is cured. ing.

  At this time, the liquid crystal panel 200 and the dust-proof glass 15 may thermally expand due to the irradiation with the spot light SL. In general, a glass material with good heat dissipation is selected for the dust-proof glass 15 in order to prevent adverse effects due to display light during driving. For this reason, the dustproof glass 15 and the substrate of the liquid crystal panel 200 often have different linear expansion coefficients, and in this case, the dustproof glass 15 and the liquid crystal panel 200 are deformed with different displacement amounts.

  As shown in FIG. 5, since there is a difference in adhesive force between the first portion 16A and the second portion 16B here, in the dust-proof glass 15, the region 15A bonded by the first portion 16A is strongly fixed. However, a displacement (in the direction of a thin line arrow in the figure) starting from the fixed region 15A is allowed in the region 15B bonded by the second portion 16B. Similarly, in the liquid crystal panel 200, the region 10A bonded by the first portion 16A is strongly fixed, but the region 10B bonded by the second portion 16B has a displacement (starting from the fixed region 10A) ( In the figure, the direction of the thick arrow) is allowed.

  Therefore, in this process, when the liquid crystal panel 200 and the dust-proof glass 15 are thermally expanded, the regions 10B and 15B are respectively displaced, so that the generation of stress and distortion is alleviated. In addition, since the liquid crystal panel 200 and the dust-proof glass 15 are partially fixed in a state of being opposed to each other, in such a case, the displacement in the normal direction of the facing surface is suppressed, and almost in the plane of the facing surface. A displacement in the direction (ie, the direction of the arrow in the figure) occurs. For this reason, the liquid crystal panel 200 and the dust-proof glass 15 bonded together in this way have little or no optical anisotropy in practice.

  Here, since the regions 10A and 15A that are the starting points of the displacement are located in the center of the region where the dust-proof glass 15 and the liquid crystal panel 200 face each other, each of the regions 10B and 15B is isotropic within the opposing surface. Can be displaced. Therefore, it is possible to prevent the accumulation of stress due to the direction of the displacement, reduce the relative displacement amount of both, and suppress the positional deviation between the liquid crystal panel 200 and the dust-proof glass 15.

  On the other hand, in the comparative example of this embodiment, as shown in FIG. 6, a dustproof glass 95 is attached to the electro-optical panel 900 by the adhesive layer 96. The adhesive layer 96 is made of one type of curable adhesive, and the entire surface is cured. At the time of curing, the dust-proof glass 95 that has absorbed heat by light irradiation or heating expands and tends to deform in the direction of the thick arrow in the figure. However, the adhesive layer 96 is rapidly cured and acts to prevent the dustproof glass 95 from being displaced. As a result, stress acts on the electro-optical panel 900 and the dustproof glass 95, and distortion occurs according to the adhesive force of the adhesive layer 96. In the liquid crystal device manufactured in this case, optical anisotropy due to distortion of the dustproof glass 95 occurs.

  Thereafter, the dust-proof glass 25 is bonded to the counter substrate 20 side of the liquid crystal panel 200. Also in this case, similarly to the above-described bonding of the dust-proof glass 15, first, a precursor film is formed on the counter substrate 20, and the dust-proof glass 25 is overlapped thereon, and spot light is irradiated to a predetermined position to form the adhesive layer 26. Form (see FIG. 4). Thereby, the liquid crystal device 110 of this embodiment is completed. At this time, since the adhesive layer 26 acts in the same manner as the adhesive layer 16, little or no optical anisotropy occurs in the liquid crystal panel 200 and the dust-proof glass 25 in practice.

  As described above, in the liquid crystal device 110 of the present embodiment, the dust-proof glasses 15 and 25 are attached to the liquid crystal panel 200 using the adhesive layers 16 and 26, so that the thermal expansion of the dust-proof glasses 15 and 25 or the liquid crystal panel 200 is achieved. As a result, the stress generated between them or the distortion generated by the stress is alleviated by the displacement in the in-plane direction of the dust-proof glass 15 and 25 or the facing surface of the liquid crystal panel 200. Therefore, according to the liquid crystal device 110 manufactured in this way, little or no optical anisotropy occurs, and it is possible to prevent deterioration in display quality such as color unevenness during driving. .

  Further, the adhesive layers 16 and 26 according to the present embodiment can be formed relatively easily without increasing the number of steps as compared with the conventional manufacturing method represented by the comparative example.

(Configuration of LCD projector)
Next, the configuration of the electronic apparatus according to the present embodiment will be described with reference to FIGS. FIG. 7 shows the configuration of a liquid crystal projector as an electronic apparatus according to this embodiment, and FIG. 8 shows the configuration of a light valve.

  In FIG. 7, a liquid crystal projector 1100 is constructed as a double-plate color projector using light valves 100R, 100G, and 100B in which a liquid crystal device 110 for RGB is supported and fixed in a housing case.

  In the liquid crystal projector 1100, when projection light is emitted from a lamp unit 1102 of a white light source such as a metal halide lamp, light components R, G, and R corresponding to the three primary colors of RGB are obtained by three mirrors 1106 and two dichroic mirrors 1108. B is divided into the light valves 100R, 100G and 100B corresponding to the respective colors. At this time, the B light is guided through a relay lens system 1121 including an entrance lens 1122, a relay lens 1123, and an exit lens 1124 in order to prevent light loss due to a long optical path. The light components corresponding to the three primary colors modulated by the light valves 100R, 100G, and 100B are combined by the dichroic prism 1112 and then projected as a color image on the screen 1120 via the projection lens 1114.

  Here, the liquid crystal projector 1100 corresponds to a specific example of the “electronic device” of the present invention, and the light valves 100R, 100G, and 100B, or the liquid crystal device 110 housed in the light valve is an “electrical device” of the present invention. This corresponds to a specific example of “optical device”. Further, in the following description, when referring to the light valves 100R, 100G, and 100B without distinction, they are simply referred to as “light valve 100”.

  In FIG. 8, a light valve 100 is a liquid crystal device 110 housed in an exterior case 2. As described above, the liquid crystal device 110 includes a drive circuit and an external circuit connection terminal (not shown here) around the image display region 10a. The external circuit connection terminal is connected to a flexible printed wiring board (FPC) 4 on which a lead wiring is drawn. For example, the FPC 4 is drawn out from a slit formed in the outer case 2, and a gap between the slit and the FPC 4 is sealed by a mold.

  Inside the outer case 2, the liquid crystal device 110 is supported and fixed so that the image display region 10 a is just exposed from the outer frame 3 provided in the center. The liquid crystal device 110 is configured to project a display image from the image display region 10a by transmitting incident light.

  As described above, since the liquid crystal projector 1100 according to the present embodiment uses the liquid crystal device 110 according to the present embodiment for the light valve 100, optical anisotropy due to stress or strain is hardly or practically not generated during manufacturing. Therefore, it is possible to prevent deterioration in display quality such as color unevenness during driving.

  Further, in the liquid crystal projector 1100, the temperature of the light valve 100 rises due to the projection light from the lamp unit 1102, which is a powerful light source. When the temperature of the light valve 100 rises excessively, the liquid crystal in the liquid crystal device deteriorates, or the transmittance is uneven due to the occurrence of optical anisotropy due to thermal expansion of the substrate of the liquid crystal device. On the other hand, in the liquid crystal device 110, as described above, the dust-proof glasses 15 and 25 are bonded to the liquid crystal panel 200 by the adhesive layers 16 and 26, respectively, so that they are expanded by the heat applied during driving. However, the occurrence of stress and strain due to the stress is alleviated, and color unevenness due to optical anisotropy can be efficiently suppressed.

<First Modification>
In the first embodiment, only the first portions 16A and 26A are selectively cured, but the second portions 16B and 26B may be cured to be weaker than the first portions 16A and 26A. In that case, the adhesive layers 16 and 26 may be formed using different curing conditions such as the intensity of irradiation light depending on these two parts.

  In the first embodiment, since the second portion 16B is not cured, it is considered that the adhesive force may be insufficient depending on the material. In this modification, even in such a case, the adhesive force can be sufficiently applied to the second portion 16B.

Second Embodiment
A second embodiment of the present invention will be described with reference to FIGS. 9 and 10. The liquid crystal device 111 of the present embodiment has the same configuration as the liquid crystal device 110 of the first embodiment, except that the configuration of the adhesive layers 36 and 46 is different from the configuration of the adhesive layers 16 and 26. Therefore, in the present embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted as appropriate.

(Overall configuration of liquid crystal device)
First, the overall configuration of the liquid crystal device according to the present embodiment will be described with reference to FIG. FIG. 9 shows the configuration of the main part of the liquid crystal device according to the present embodiment, in which FIG. 9A is a plan view and FIG.

  9A and 9B, a liquid crystal device 111 as an example of the “electro-optical device” of the present invention is configured by adhering dust-proof glasses 15 and 25 to the liquid crystal panel 200 by adhesive layers 36 and 46. Yes. That is, the dustproof glass 15 is bonded to the surface of the TFT array substrate 10 by the adhesive layer 36, and the dustproof glass 25 is bonded to the surface of the counter substrate 20 by the adhesive layer 46. The liquid crystal panel 200 and the dustproof glasses 15 and 25 are firmly bonded at one place (that is, the first portions 36A and 46A) of the adhesive layers 36 and 46, but the surrounding area (that is, the first portion) The two parts 36B and 46B) are relatively weakly bonded.

  The adhesive layer 36 includes two parts having different adhesive forces, that is, a first part 36A and a second part 36B. The first portion 36A and the second portion 36B are made of different curable adhesives and are cured under the same curing conditions. It can be said that the second portion 36B is incompletely cured and has a plasticity or viscosity when applied or close to that of the first portion 16A. Thus, the difference in the adhesive force between the first portion 36A and the second portion 36B is caused by the difference in the degree of curing with respect to a predetermined curing condition. As a result, the relationship between the adhesive force of the first portion 36A and the adhesive force of the second portion 36B in the adhesive layer 36 is the same as that of the adhesive layer 16 of the first embodiment.

  However, here, the final optical characteristics obtained after curing are aligned between the first portion 36A and the second portion 36B. Therefore, the display image projected through the adhesive layer 36 has almost or no display characteristic difference due to the difference in refractive index, transmittance, etc. between the first portion 36A and the second portion 36B. There is no need to make it happen. Specifically, the presence of the two regions in the adhesive layer 36 can be prevented from being reflected in the display image.

  The adhesive layer 46 is also made of different curable adhesives, and includes a first portion 46A and a second portion 46B cured under the same curing conditions. The final optical characteristics obtained after curing are aligned between the first portion 46A and the second portion 46B.

(Manufacturing method of liquid crystal device)
Next, a manufacturing method of the liquid crystal device according to the present embodiment will be described with reference to FIG. Here, FIGS. 10A to 10C correspond to the BB ′ cross section of FIG. 9 and sequentially show the manufacturing process of the liquid crystal device. However, FIG. 10 shows a state in which the top and bottom of FIG.

  First, in the step of FIG. 10A, an assembled liquid crystal panel 200 is prepared, and a precursor film 36 ′ is formed on the TFT array substrate 10. The precursor film 36 ′ is formed as the first portion 36A ′ using the first curable adhesive in the region corresponding to the first portion 36A on the TFT array substrate 10, and in the region corresponding to the second portion 36B. The second portion 36B ′ is formed using a second curable adhesive. These first and second curable adhesives are selected so as to develop different adhesive forces under the same curing conditions.

  Next, in the process of FIG. 10B, the dust-proof glass 15 is disposed opposite to the TFT array substrate 10 so as to sandwich the precursor film 36 '.

  Next, in the process of FIG. 10C, the precursor film 36 ′ is irradiated with light L from above the dust-proof glass 15 to form the adhesive layer 36, and the dust-proof glass 15 is bonded to the TFT array substrate 10.

  The light L is uniformly applied to the entire surface of the precursor film 36 '. Therefore, here, the entire precursor film 36 ′ is simultaneously cured, and the adhesive layer 36 shown in FIG. 9 is formed. That is, although the first portion 36A and the second portion 36B formed here are cured under the same curing conditions, the adhesive force is different depending on the difference in the degree of curing with respect to the curing conditions.

  At this time, the liquid crystal panel 200 and the dust-proof glass 15 may thermally expand due to the irradiation of the light L. However, in this embodiment as well as in the first embodiment (see FIG. 5), there is a difference in adhesive force between the first portion 36A and the second portion 36B. Therefore, in the dustproof glass 15, the first portion 36A is bonded. The region 15A is strongly fixed, but the region 15B bonded by the second portion 36B is allowed to be displaced from the fixed region 15A. Similarly, in the liquid crystal panel 200, the region 10A bonded by the first portion 36A is strongly fixed, but the region 10B bonded by the second portion 36B has a displacement starting from the fixed region 10A. forgiven.

  Therefore, in this step, when the liquid crystal panel 200 and the dust-proof glass 15 are thermally expanded, the regions 10B and 15B are displaced in the in-plane direction of the opposing surfaces, respectively, thereby reducing the occurrence of stress and distortion. . For this reason, the liquid crystal panel 200 and the dust-proof glass 15 bonded together in this way have little or no optical anisotropy in practice. In this embodiment, at this time, the optical characteristics are uniform between the first portion 36A and the second portion 36B in the adhesive layer 36.

  Thereafter, the dust-proof glass 25 is bonded to the counter substrate 20 side of the liquid crystal panel 200. Also in this case, similarly to the above-described bonding of the dust-proof glass 15, first, a precursor film is formed on the counter substrate 20 using different curable adhesives for the two portions, and the dust-proof glass 25 is stacked thereon. In addition, the adhesive layer 46 is formed by uniformly irradiating the entire surface with light (see FIG. 10). Thereby, the liquid crystal device 111 of the present embodiment is completed. At this time, since the adhesive layer 46 acts in the same manner as the adhesive layer 36, little or no optical anisotropy occurs in the liquid crystal panel 200 and the dust-proof glass 25 in practice.

  As described above, the adhesive layers 36 and 46 according to the present embodiment can be formed relatively easily because only one curing process is required at the time of formation. Other operations and effects according to the present embodiment are the same as those of the first embodiment.

<Second Modification>
In the second embodiment, the first portions 36A and 36A made of different adhesive materials are both cured under the same curing conditions, but only the first portion 36A may be selectively cured. In this case, the curing process may be performed at one place, and the adhesive force of the second portion 36B can be made relatively weak while ensuring the strong adhesive force of the first portion 36A.

  Further, the second portion 36B may not be a curable adhesive. That is, in this case, there is an advantage that the material selection range for the second portion 36B is wide. Furthermore, since the curing process is only required in one place, such an adhesive layer can be formed relatively easily.

<Third Embodiment>
A third embodiment of the present invention will be described with reference to FIGS. The liquid crystal device 112 of the present embodiment has the same configuration as the liquid crystal device 110 of the first embodiment, except that the configuration of the adhesive layers 56 and 66 is different from the configuration of the adhesive layers 16 and 26. Therefore, in this embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted as appropriate.

  First, the overall configuration of the liquid crystal device according to the present embodiment will be described with reference to FIG. FIG. 11 shows a configuration of a main part of the liquid crystal device according to the present embodiment, in which (a) is a plan view and (b) is a cross-sectional view along CC ′ in (a).

  11A and 11B, a liquid crystal device 112 as an example of the “electro-optical device” of the present invention is configured by adhering dust-proof glasses 15 and 25 to a liquid crystal panel 200 with adhesive layers 56 and 66. Yes.

Here, the adhesive layer 56 is disposed at the center of the region R1 where the TFT array substrate 10 and the dust-proof glass 15 face each other. The adhesive layer 56 is made of, for example, a curable adhesive and has an adhesive force for fixing the dust-proof glass 15 to the liquid crystal panel 200 (directly the TFT array substrate 10). The adhesive layer 56 is surrounded by a transparent medium 57 having the same or similar refractive index as that of the adhesive 56 and being richer in plasticity or viscosity than the adhesive layer 56. The transparent medium 57 is made of, for example, resin.
Since the transparent medium 57 has almost no adhesive force, the region occupied by the adhesive layer 56 in the region R1 is, for example, larger than the first portion in the first and second embodiments.

  The adhesive layer 66 is also made of a curable adhesive, and is disposed at the center of the region R2 where the counter substrate 20 and the dust-proof glass 25 face each other. The adhesive layer 66 also has optical characteristics such as a refractive index that are uniform with the transparent medium 67 disposed around the adhesive layer 66. Therefore, in this case, the display image projected through the adhesive layers 56 and 66 has a display characteristic difference caused by a difference in refractive index, transmittance, etc. between the adhesive layer and the surrounding transparent medium. Little or no practice is required. Specifically, the presence of two regions in the adhesive layer 56 or the adhesive layer 66 can be prevented from being reflected in the display image.

  Also in the liquid crystal device 112 having such a configuration, the stress can be relieved by the displacement of the liquid crystal panel 200 and the dustproof glasses 15 and 25 during thermal expansion, as in the above embodiment.

  As shown in FIG. 12, for example, when the adhesive layer 56 is cured, the liquid crystal panel 200 and the dust-proof glass 15 may thermally expand. However, since there is a difference in adhesive force between the adhesive layer 56 and the transparent medium 57, in the dustproof glass 15, the region 15A ′ bonded by the adhesive layer 56 is strongly fixed, but the region 15B ′ facing the transparent medium. In this case, displacement starting from the region 15A ′ is allowed. Similarly, in the liquid crystal panel 200, the region 10A ′ adhered by the adhesive layer 56 is strongly fixed, but the region 10B ′ facing the transparent medium 57 is allowed to be displaced from the region 10A ′.

  Therefore, when the liquid crystal panel 200 and the dust-proof glass 15 are thermally expanded, the regions 10B 'and 15B' are displaced in the in-plane direction of the opposing surface, respectively, thereby reducing the occurrence of stress and distortion. Therefore, little or no practical optical anisotropy occurs in the liquid crystal panel 200 and the dust-proof glass 15 bonded in this way. In this embodiment, the optical characteristics are uniform between the adhesive layer 56 and the transparent medium 57 at this point.

  Thereafter, the dust-proof glass 25 is bonded to the counter substrate 20 side of the liquid crystal panel 200. Thereby, the liquid crystal device 112 of this embodiment is completed. At this time, since the adhesive layer 66 acts in the same manner as the adhesive layer 56, little or no optical anisotropy occurs in the liquid crystal panel 200 and the dust-proof glass 25 in practice.

  As described above, in the liquid crystal device 112 of the present embodiment, the dustproof glasses 15 and 25 are attached to the liquid crystal panel 200 using the adhesive layers 56 and 66, and thus the thermal expansion of the dustproof glasses 15 and 25 or the liquid crystal panel 200 is performed. Along with this, the stress generated between them is alleviated by the displacement in the in-plane direction of the opposing surfaces of the dust-proof glass 15 and 25 or the liquid crystal panel 200. Therefore, according to the liquid crystal device 112, little or no optical anisotropy occurs in practice, and it is possible to prevent deterioration in display quality such as color unevenness during driving.

  In addition, although the above embodiment demonstrated the case where the planar shape of the 1st part of the contact bonding layer which concerns on this invention was circular, the 1st part should just be limited to one area | region substantially, The planar shape is not particularly limited, and may be a square shape.

  As described above, the present invention has been described with reference to the embodiment. However, the electro-optical device of the present invention only needs to include an electro-optical panel and a transparent plate member that accompany thermal expansion. It can be realized as various display devices such as electrophoresis devices and devices using electron-emitting devices (Field Emission Display and Surface-Conduction Electron-Emitter Display). Further, such an electro-optical device can be applied not only to a projection type but also to a reflection type projector, and further, a television receiver, a mobile phone, an electronic notebook, a word processor, a viewfinder type or a monitor direct view type video tape. The present invention can be widely applied to various electronic devices such as a recorder, a workstation, a videophone, a POS terminal, and a touch panel.

  The present invention is not limited to the above-described embodiments and modifications, and can be appropriately changed without departing from the spirit or idea of the invention that can be read from the claims and the entire specification, and is accompanied by such changes. An electro-optical device, a manufacturing method thereof, and an electronic apparatus to which the electro-optical device is applied are also included in the technical scope of the present invention.

1A and 1B show an overall configuration of an electro-optical device according to a first embodiment of the invention, in which FIG. 1A is a plan view and FIG. 1 is a plan view showing a configuration of an electro-optical panel according to a first embodiment of the present invention. It is H-H 'sectional drawing of FIG. FIG. 6 is a manufacturing process diagram for step-by-step description of the method for manufacturing the electro-optical device according to the first embodiment. FIG. 3 is a schematic diagram illustrating a state of the electro-optical device according to the first embodiment during thermal expansion. 6 is a schematic diagram illustrating a state during thermal expansion in a comparative example of the electro-optical device according to the first embodiment. FIG. It is a block diagram which shows the structure of the electronic device which concerns on 1st Embodiment. It is a perspective view which shows the structure of the light valve in FIG. FIGS. 4A and 4B illustrate an overall configuration of an electro-optical device according to a second embodiment, where FIG. 5A is a plan view and FIG. 5B is a cross-sectional view taken along line B-B ′ in FIG. FIG. 11 is a manufacturing process diagram for step-by-step description of a method for manufacturing an electro-optical device according to a second embodiment. FIGS. 4A and 4B illustrate an overall configuration of an electro-optical device according to a third embodiment, in which FIG. 5A is a plan view and FIG. FIG. 10 is a schematic diagram illustrating a state during thermal expansion of an electro-optical device according to a third embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10a ... Image display area, 10 ... TFT array substrate, 20 ... Counter substrate, 15, 25 ... Dust-proof glass, 16, 26, 36, 46, 56, 66 ... Adhesive layer, 57, 67 ... Transparent medium, 110 ... Liquid crystal device , 200 ... liquid crystal panel, 100 (100R, 100G, 100B) ... light valve, 1112 ... dichroic prism, 1100 ... liquid crystal projector.

Claims (15)

An electro-optical panel in which a display image is displayed in the image display area;
A transparent plate member disposed opposite to the electro-optical panel;
An electro-optical device comprising: an adhesive layer disposed in a part between the electro-optical panel and the transparent plate member and not disposed in another part. An electro-optical panel in which a display image is displayed in the image display area;
A transparent plate member disposed opposite to the electro-optical panel;
To be disposed between the electro-optical panel and the transparent plate member and provided at one location between the electro-optical panel and the transparent plate member, and to fix the transparent plate member to the electro-optical panel A first portion having a first adhesive force and an adhesive layer provided around the first portion and comprising a second portion having a second adhesive force weaker than the first adhesive force. An electro-optical device.   3. The electro-optical device according to claim 2, wherein the first portion is provided at a center of a region where the electro-optical panel and the transparent plate member face each other.   The adhesive layer has at least the first portion made of a curable adhesive, and the first portion is hardened more firmly than the second portion by being cured to adhere to the electro-optical panel and the transparent plate member. The electro-optical device according to claim 2 or 3.   The electro-optical device according to claim 4, wherein the first and second parts are made of the same curable adhesive, and only the first part is cured.   The electro-optical device according to claim 4, wherein the first and second portions are made of the same curable adhesive and are cured under different curing conditions.   The electro-optical device according to claim 4, wherein the first and second parts are made of different adhesives, and only the first part is cured.   5. The electro-optical device according to claim 4, wherein the first and second portions are made of different curable adhesives and are cured under the same curing conditions.   The optical characteristic of the first part and the optical characteristic of the second part are prevented from causing a display characteristic difference due to the optical characteristic difference between the first and second parts in the display image displayed on the electro-optical panel. The electro-optical device according to any one of claims 7 and 8, wherein   An electronic apparatus comprising the electro-optical device according to claim 1. An electro-optical panel in which a display image is displayed in an image display area, a transparent plate member disposed to face the electro-optical panel, and an adhesive layer disposed between the electro-optical panel and the transparent plate member An electro-optical device manufacturing method used for manufacturing an electro-optical device,
A precursor film forming step of forming a precursor film of the adhesive layer on the electro-optical panel or the transparent plate member using a curable adhesive in at least one place;
An arrangement step of arranging the electro-optical panel and the transparent plate member opposite to each other with the precursor film interposed therebetween;
A curing forming step of curing the one place so as to have a stronger adhesive force than a precursor film other than the one place formed around the one place, and forming the adhesive layer. Production method. In the precursor film forming step, the precursor film is formed with one kind of curable adhesive,
The method for manufacturing an electro-optical device according to claim 11, wherein in the curing and forming step, only the one portion of the precursor film is selectively cured. In the precursor film forming step, the precursor film is formed with one kind of curable adhesive,
12. The electro-optical device according to claim 11, wherein in the curing formation step, each of the one place and the precursor film other than the one place formed around the one place is cured under different curing conditions. Production method. In the precursor film forming step, in the one place, a curable adhesive that expresses an adhesive force for bonding the transparent plate member and the electro-optical panel is used, and the one place is formed around the one place. In the precursor film other than one place, the precursor film is formed using an adhesive that expresses weaker adhesive force than the curable adhesive,
The method for manufacturing an electro-optical device according to claim 11, wherein in the curing and forming step, only the one portion of the precursor film is selectively cured. In the precursor film forming step, a first curable adhesive that expresses an adhesive force for adhering the transparent plate member and the electro-optical panel by being cured under a predetermined condition in the one place, The precursor film other than the one place formed around the one place is provided with a second curable adhesive that expresses weaker adhesive force than the first curable adhesive by curing under the predetermined condition. Using to form the precursor film,
The method of manufacturing an electro-optical device according to claim 11, wherein in the curing and forming step, the entire surface of the precursor film is cured under the same curing conditions.

Images