JP2015200687A - Electro-optical device and electronic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electro-optical device and an electronic apparatus that can suppress a reduction in display quality.SOLUTION: An electro-optical device includes an element substrate 10 and an opposing substrate 20 that are bonded to each other with a liquid crystal layer 50 therebetween, a dustproof substrate 400 that is bonded to one of the element substrate 10 and opposing substrate 20, and a frame 310 that accommodates the element substrate 10, opposing substrate 20, and dustproof substrate 400, where the end faces of one of the element substrate 10, opposing substrate 20, and dustproof substrate 400 are bonded to the frame 310 with an adhesive 510 therebetween.

Description

  The present invention relates to an electro-optical device and an electronic apparatus.

  In the liquid crystal device as the electro-optical device, for example, an electro-optical panel such as a liquid crystal panel is accommodated in a frame, and is used as a light valve of a liquid crystal projector, for example. For example, Patent Document 1 discloses an electro-optical device that includes a reflective electro-optical panel, a frame that houses the electro-optical panel, and a heat sink that dissipates heat from the electro-optical panel.

  The electro-optical panel is configured by bonding a TFT array substrate and a counter substrate through a seal material. In addition, dustproof glass for preventing dust and the like from adhering is attached to the electro-optical panel. These electro-optical panel and dust-proof glass are bonded to the frame with an adhesive. Specifically, the adhesive is provided from the surface of the dustproof glass to the side surface of the electro-optical panel.

JP 2010-256653 A

  However, in the configuration of Patent Document 1, heat from a light source such as a liquid crystal projector is transmitted to the frame, and stress (deformation due to thermal expansion, etc.) generated in the frame is transmitted to the electro-optical panel and dust-proof glass through the adhesive. Specifically, since the stress generated in the frame is transmitted to the TFT array substrate, the counter substrate, and the dust-proof glass, the stress is transmitted to the electro-optical panel as a complex stress (complex distortion). As a result, the display image of the electro-optical panel is uneven in color and the display quality is degraded.

  An aspect of the present invention has been made to solve at least a part of the above problems, and can be realized as the following forms or application examples.

  Application Example 1 An electro-optical device according to this application example is bonded to one of the first substrate and the second substrate, and the first substrate and the second substrate bonded via an electro-optical material. An end surface of one of the first substrate, the second substrate, and the third substrate, and a third substrate, and a frame that accommodates the first substrate, the second substrate, and the third substrate. Only is bonded to the frame via an adhesive.

  According to this application example, since the end surface of one of the first substrate, the second substrate, and the third substrate is bonded to the frame via the adhesive, the one substrate and the other substrate are attached. Compared to the case where the plurality of sheets and the frame are bonded to the frame via an adhesive, it is possible to suppress a composite stress from being transmitted from the frame to the substrate. For example, even if heat is transmitted to the frame and the frame is deformed due to thermal expansion, it is possible to suppress the composite stress due to the deformation of the plurality of substrates from being transmitted to the substrate. As a result, it is possible to suppress the occurrence of color unevenness in the display image and the deterioration in display image quality.

  Application Example 2 In the electro-optical device according to the application example, it is preferable that the third substrate is a dustproof substrate.

  According to this application example, since the dust-proof substrate is bonded, it is possible to prevent foreign matters such as dust from adhering to the first substrate and the second substrate, and display quality can be improved. In addition, even when the number of dustproof substrates is increased, it is possible to suppress the composite stress from being transmitted to the substrate.

  Application Example 3 In the electro-optical device according to the application example, the outer shape of the first substrate that is bonded to the frame via the adhesive among the first substrate, the second substrate, and the third substrate. The shape is preferably larger than the outer shape of the other substrate.

  According to this application example, since the outer shape of one substrate is large, it is possible to easily adhere only one substrate to a frame that accommodates the first substrate, the second substrate, and the third substrate.

  Application Example 4 In the electro-optical device according to the application example, it is preferable that the first substrate or the second substrate has a reflective pixel electrode.

  According to this application example, it is possible to absorb (relax) the stress from the frame, so that it is possible to effectively improve the display quality of the reflective electro-optical device in which light is incident and reflected. it can.

  Application Example 5 An electronic apparatus according to this application example includes the electro-optical device.

  According to this application example, since the electro-optical device is provided, it is possible to provide an electronic apparatus capable of suppressing the occurrence of color unevenness in the display image and improving the display quality.

FIG. 3 is a schematic plan view illustrating a configuration of a liquid crystal panel included in the liquid crystal device. FIG. 2 is a schematic cross-sectional view taken along the line H-H ′ of the liquid crystal panel shown in FIG. 1. FIG. 3 is an equivalent circuit diagram illustrating an electrical configuration of the liquid crystal panel. The perspective view which shows the whole structure of a liquid crystal device. FIG. 5 is a schematic cross-sectional view taken along line I-I ′ of the liquid crystal device illustrated in FIG. 4. FIG. 2 is a schematic diagram illustrating a configuration of a projector including a liquid crystal device.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, embodiments of the invention will be described with reference to the drawings. Note that the drawings to be used are appropriately enlarged or reduced so that the part to be described can be recognized.

  In the following embodiments, for example, when “on the substrate” is described, the substrate is disposed so as to be in contact with the substrate, or is disposed on the substrate via another component, or the substrate. It is assumed that a part is arranged so as to be in contact with each other and a part is arranged via another component.

  In the present embodiment, an active matrix liquid crystal panel including a thin film transistor (TFT) as a pixel switching element will be described as an example of an electro-optical panel included in the electro-optical device. A liquid crystal device provided with this liquid crystal panel can be suitably used, for example, as a light modulation element (liquid crystal light valve) of a projection display device (liquid crystal projector).

<Configuration of liquid crystal panel included in electro-optical device>
FIG. 1 is a schematic plan view illustrating a configuration of a liquid crystal panel included in the liquid crystal device. FIG. 2 is a schematic cross-sectional view taken along the line HH ′ of the liquid crystal panel shown in FIG. FIG. 3 is an equivalent circuit diagram showing an electrical configuration of the liquid crystal panel. Hereinafter, the configuration of the liquid crystal panel will be described with reference to FIGS.

  The liquid crystal panel 100 is configured by disposing an element substrate 10 (first substrate) and a counter substrate 20 (second substrate) so as to face each other. The substrate body of the element substrate 10 is composed of, for example, a single crystal silicon substrate, a transparent substrate such as a glass substrate or a quartz substrate. The substrate body of the counter substrate 20 is composed of a transparent substrate such as a glass substrate or a quartz substrate, for example. A liquid crystal layer 50 as an electro-optical material is sealed between the element substrate 10 and the counter substrate 20. 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 a pair of alignment films.

  The element substrate 10 and the counter substrate 20 are bonded to each other by a sealing material 52 provided in a sealing region located around the image display region 10a provided with a plurality of pixel electrodes.

  The sealing material 52 is made of, for example, an ultraviolet curable resin, a thermosetting resin, or the like for bonding the two substrates, and is applied to the element substrate 10 in the manufacturing process and then cured by ultraviolet irradiation, heating, or the like. is there. In the sealing material 52, a gap material such as glass fiber or glass beads for spreading the distance between the element substrate 10 and the counter substrate 20 (that is, the inter-substrate gap) to a predetermined value is dispersed. Note that the gap material may be arranged in the image display region 10a or a peripheral region located around the image display region 10a in addition to or instead of the material mixed in the seal material 52.

  A light-shielding frame light-shielding film 53 that partially defines the frame area of the image display area 10a is provided on the counter substrate 20 side in parallel with the inside of the seal area where the seal material 52 is disposed.

  A data line driving circuit 101 and an external connection terminal 102 are provided along one side of the element substrate 10 in a region located outside the sealing region where the sealing material 52 is disposed in the peripheral region. The scanning line driving circuit 104 is provided along two sides adjacent to the one side so as to be covered with the frame light shielding film 53. Further, in order to connect the two scanning line drive circuits 104 provided on both sides of the image display region 10a in this way, the image sensor is covered with the frame light shielding film 53 along the remaining side of the element substrate 10. A plurality of wirings 105 are provided.

  In a region of the element substrate 10 facing the four corners of the counter substrate 20, vertical conduction terminals 106 for connecting the two substrates with a vertical conduction material are arranged. Thus, electrical conduction can be established between the element substrate 10 and the counter substrate 20.

  As shown in FIG. 2, the element substrate 10 has a laminated structure in which pixel switching TFTs, which are driving elements, and wiring lines such as scanning lines and data lines are formed. Although a detailed configuration of this laminated structure is not shown in FIG. 2, a reflective pixel electrode 9a serving as a reflective electrode is provided on the laminated structure. The pixel electrode 9a is typically formed in an island shape with a predetermined pattern for each pixel from a highly light-reflective material such as aluminum, and reflects incident light.

  The pixel electrode 9 a is formed in the image display region 10 a of the element substrate 10 so as to face the counter electrode 21. On the surface of the element substrate 10 facing the liquid crystal layer 50, that is, on the pixel electrode 9a, an alignment film 16 is formed so as to cover the pixel electrode 9a.

  On the surface of the counter substrate 20 facing the element substrate 10, a counter electrode 21 made of a transparent material such as ITO is formed so as to oppose the plurality of pixel electrodes 9a. In order to perform color display in the image display area 10a, a color filter (not shown in FIG. 2) may be formed in an area including a part of the opening area and the non-opening area.

  An alignment film 22 is formed on the counter electrode 21 on the surface of the counter substrate 20 facing the element substrate 10. Note that similarly to the transmissive liquid crystal device, a light shielding film may be formed in a lattice shape or a stripe shape on the counter substrate 20 to provide a non-opening region.

  In addition to the above-described drive circuits such as the data line drive circuit 101 and the scanning line drive circuit 104, the element substrate 10 shown in FIGS. A sampling circuit to be supplied, a precharge circuit for supplying a precharge signal having a predetermined voltage level to a plurality of data lines in advance of an image signal, in order to inspect the quality, defects, etc. of the liquid crystal panel 100 during manufacture or at the time of shipment An inspection circuit or the like may be formed.

  Next, an electrical configuration of the pixel portion of the liquid crystal panel will be described with reference to FIG. FIG. 3 is an equivalent circuit diagram of various elements, wirings, and the like in a plurality of pixels formed in a matrix that forms an image display region of a liquid crystal panel included in the electro-optical device.

  In FIG. 3, a pixel electrode 9a and a TFT 30 are formed in each of a plurality of pixels formed in a matrix that forms the image display region 10a. The TFT 30 is electrically connected to the pixel electrode 9a, and performs switching control of the pixel electrode 9a when the liquid crystal panel 100 operates.

  The data line 6a to which the image signal is supplied is electrically connected to the source of the TFT 30. The image signals S1, S2,..., Sn to be written to the data lines 6a may be supplied line-sequentially in this order, or may be supplied for each group to a plurality of adjacent data lines 6a. May be.

  The scanning line 3a is electrically connected to the gate of the TFT 30, and the liquid crystal panel 100 applies the scanning signals G1, G2,..., Gm in order to the scanning line 3a in this order at a predetermined timing. It is configured to apply line-sequentially.

  The pixel electrode 9a is electrically connected to the drain of the TFT 30, and the image signal S1, S2,... Supplied from the data line 6a is closed by closing the switch of the TFT 30 serving as a switching element for a certain period. Sn is written at a predetermined timing. A predetermined level of image signals S1, S2,..., Sn written to the liquid crystal via the pixel electrode 9a is held for a certain period with the counter electrode 21 formed on the counter substrate.

  The liquid crystal constituting the liquid crystal layer 50 (see FIG. 2) modulates light and enables gradation display by changing the orientation and order of the molecular assembly depending on the applied voltage level. For example, in the normally white mode, the transmittance for incident light is reduced according to the voltage applied in units of each pixel. In the normally black mode, the transmittance is applied in units of each pixel. As a result, the transmittance for incident light is increased, and light having a contrast corresponding to an image signal is emitted from the liquid crystal panel 100 as a whole.

  In order to prevent the image signal held here from leaking, a storage capacitor 70 is added in parallel with the liquid crystal capacitor formed between the pixel electrode 9a and the counter electrode 21 (see FIG. 2). The storage capacitor 70 is a capacitive element that functions as a storage capacitor that temporarily holds the potential of each pixel electrode 9a in response to supply of an image signal.

  One electrode of the storage capacitor 70 is electrically connected to the drain of the TFT 30 in parallel with the pixel electrode 9a, and the other electrode is electrically connected to the capacitor line 300 having a fixed potential so as to have a constant potential. ing. According to the storage capacitor 70, the potential holding characteristic of the pixel electrode 9a is improved, and the display characteristics such as improvement of contrast and reduction of flicker can be improved.

<Configuration of liquid crystal device as electro-optical device>
Next, the overall configuration of a liquid crystal device as an electro-optical device will be described with reference to FIGS. FIG. 4 is a perspective view showing the overall configuration of the liquid crystal device. FIG. 5 is a schematic cross-sectional view taken along the line II ′ of the liquid crystal device shown in FIG. 4 and 5, detailed members in the liquid crystal panel shown in FIGS. 1 and 2 are omitted as appropriate.

  As shown in FIG. 4, the liquid crystal device 1 includes a liquid crystal panel 100, a flexible substrate 200, a frame 310, a heat sink 320, a dustproof substrate 400 (see FIG. 5) as a third substrate, and a parting plate that is an example of a light shielding plate. 600.

  Although not shown in FIGS. 4 and 5, the flexible substrate 200 is bonded to the external connection terminals 102 of the liquid crystal panel 100. The flexible substrate 200 is a substrate including signal wiring for sending various control signals required for the electro-optical operation of the liquid crystal panel 100 described above, and is formed by patterning signal wiring or the like on a base material such as polyimide, for example. ing.

  Note that a driving IC chip including at least a part of a driving circuit for driving the liquid crystal panel 100 may be disposed on the flexible substrate 200. The other end of the flexible substrate 200 opposite to the one connected to the liquid crystal panel 100 is drawn to the outside of the frame 310 and the heat sink 320, and various control signals required for the electro-optical operation of the liquid crystal panel 100 are transmitted. It is connected to an external circuit (not shown) for supply.

  The frame 310 is configured to include a metal having excellent thermal conductivity such as iron, copper, aluminum, and magnesium, and radiates the liquid crystal panel 100 together with a heat sink 320 described later.

  As shown in FIG. 4, the parting plate 600 is provided in a window shape so as to surround the image display area 10 a of the liquid crystal panel 100, and prevents light from entering the area other than the image display area 10 a. . The parting plate 600 is made of a material having a low light reflectance as compared with other members constituting the liquid crystal device 1 such as the frame 310, for example.

  Specifically, for example, it may be formed from SUS304, which is a typical steel type of austenitic stainless steel. The parting plate 600 is engaged with the frame 310 at an engaging portion (not shown).

  The frame 310 is bonded to the outer peripheral portion of any one of the element substrate 10, the counter substrate 20, and the dustproof substrate 400 via an adhesive 510. In the present embodiment, the frame 310 and the outer peripheral portion (side end surface) of the element substrate 10 are bonded via an adhesive 510. The adhesive 510 may be adhered to a part of the outer peripheral portion of the element substrate 10 or may be adhered to the entire outer peripheral portion.

  As described above, when any one of the element substrate 10, the counter substrate 20, and the dust-proof substrate 400 is bonded to the frame 310, when the frame 310 is irradiated with light, the element substrate 10 and the counter substrate 10 are opposed to each other. The stress transmitted from the frame 310 to the liquid crystal panel 100 can be reduced as compared with the case where both (or all of the substrates) 20 and the frame 310 are bonded via the adhesive 510. In other words, it is possible to suppress a composite stress due to heat from being transmitted to the liquid crystal panel 100 as compared with a case where the substrate is bonded to a plurality of substrates. Thereby, it is possible to suppress the occurrence of color unevenness in the display image of the liquid crystal panel 100 and the deterioration of the display image quality.

  For example, in the present embodiment, the outer shape (size) of the element substrate 10 is larger than that of the counter substrate 20 and the dustproof substrate 400. This makes it easy to bond only the outer peripheral portion of the element substrate 10 to the frame 310.

  In the present embodiment, the stress generated in the frame 310 is indirectly transmitted to the liquid crystal panel 100 only through the element substrate 10, so that the stress received by the liquid crystal panel 100 is reduced.

  In addition, stress generated by light irradiation (heat) or the like in the frame 310 is indirectly transmitted to the liquid crystal panel 100 through the adhesive 510, so that the stress received by the liquid crystal panel 100 can be reduced.

  For example, the dustproof substrate 400 is attached to the counter substrate 20 via a transparent adhesive 540. The dustproof substrate 400 has a function of protecting the image display area 10a of the liquid crystal panel 100 from dust and dirt.

  The heat sink 320 is disposed so as to be in contact with the liquid crystal panel 100 from the back side located on the opposite side of the display surface. The heat sink 320 has a heat radiating portion 325 for radiating heat generated in the liquid crystal panel 100. As a result, it is possible to prevent various problems such as an operation failure of the liquid crystal panel 100 due to heat accumulation in the liquid crystal panel 100.

  Further, by reducing the distortion in the constituent members of the liquid crystal device 1 due to heat, the stress generated in the device can be reduced. Note that the heat sink 320 may be configured to include a material having high thermal conductivity, for example, iron, copper, aluminum, or the like, in order to enhance the heat dissipation effect.

  The heat sink 320 is bonded to the frame 310 and the liquid crystal panel 100 with an adhesive, for example. The frame 310 and the heat sink 320 may be joined to each other at a joint portion (not shown). In this case, the joining may be performed by fitting, for example, a concave portion provided in the frame 310 and a convex portion provided in the heat sink, or may be performed using a screw or the like.

  The adhesive has a higher thermal conductivity than air, can efficiently transfer the heat generated in the liquid crystal panel 100 to the heat sink 320, and has a function of improving the heat dissipation performance in the heat dissipation portion 325. ing.

  In this embodiment, the adhesive is applied so as to fill between the liquid crystal panel 100 and the heat sink 320 and between the frame 310 and the heat sink 320. However, the adhesive is applied only to a part of each. Alternatively, no adhesive may be applied between the liquid crystal panel 100 and the heat sink 320 and between the frame 310 and the heat sink 320. Further, instead of or in addition to the adhesive, a sheet or grease having thermal conductivity may be used.

  Since the parting plate 600 is formed in a thin plate shape, when a force is applied, the parting plate 600 can be distorted in a vertical direction (that is, the parting plate 600 has elasticity). Therefore, the stress transmitted from the frame 310 to the dustproof substrate 400 through the parting plate 600 is absorbed by the elasticity of the parting plate 600, and the stress transmitted to the liquid crystal panel 100 bonded to the dustproof substrate 400 is reduced. The

  As described above, in the liquid crystal device 1 according to the present embodiment, the stress transmitted to the liquid crystal panel 100 can be reduced, and the occurrence of color unevenness in the display image can be prevented.

<Configuration of electronic equipment>
Next, the case where the liquid crystal device which is the above-described electro-optical device is applied to various electronic devices will be described. Here, a projection type liquid crystal projector is taken as an example of the electronic apparatus according to the present invention. FIG. 6 is a schematic diagram illustrating a configuration of the projection type liquid crystal projector according to the present embodiment.

  In FIG. 6, the liquid crystal projector 1100 according to the present embodiment is constructed as a multi-plate color projector using three liquid crystal light valves 100R, 100G, and 100B for RGB. Each of the liquid crystal light valves 100R, 100G, and 100B uses the reflective liquid crystal device 1 described above.

  As shown in FIG. 6, 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, two mirrors 1106, two dichroic mirrors 1108, and three polarization beam splitters (PBS) ) 1113 is divided into light components R, G, and B corresponding to the three primary colors of RGB and led to the liquid crystal light valves 100R, 100G, and 100B corresponding to the respective colors.

  At this time, in order to prevent light loss in the optical path, a lens may be appropriately provided in the middle of the optical path. The light components corresponding to the three primary colors modulated by the liquid crystal light valves 100R, 100G, and 100B are combined by the cross prism 1112 and then projected as a color image on the screen 1120 via the projection lens 1114.

  In addition, since light corresponding to each primary color of R, G, and B is incident on the liquid crystal light valves 100R, 100B, and 100G by the dichroic mirror 1108 and the polarization beam splitter 1113, it is not necessary to provide a color filter.

  In addition to the liquid crystal projector 1100, the electronic device on which the liquid crystal device 1 is mounted includes a head-up display (HUD), a head-mounted display (HMD), a smartphone, an EVF (Electrical View Finder), a mobile mini projector, an electronic book, It can be used for various electronic devices such as mobile phones, mobile computers, digital cameras, digital video cameras, displays, liquid crystal televisions, car navigation devices, audio devices, exposure devices, and lighting devices.

  As described above in detail, according to the liquid crystal device 1 and the electronic apparatus of the present embodiment, the following effects can be obtained.

  (1) According to the liquid crystal device 1 of the present embodiment, the end surface of any one of the element substrate 10, the counter substrate 20, and the dustproof substrate 400 and the frame 310 are bonded via the adhesive 510. Therefore, compared with the case where a plurality of substrates (element substrate 10, counter substrate 20, dust-proof substrate 400) and frame 310 are bonded to frame 310 via adhesive 510, composite stress is applied from frame 310. Can be prevented from being transmitted to the liquid crystal panel 100. For example, even if heat is transmitted to the frame 310 and the frame 310 is deformed by thermal expansion, a composite stress due to deformation of a plurality of substrates (the element substrate 10, the counter substrate 20, and the dustproof substrate 400) is transmitted to the liquid crystal panel 100. That can be suppressed. As a result, it is possible to suppress the occurrence of color unevenness in the display image and the deterioration in display image quality.

  (2) According to the liquid crystal device 1 of the present embodiment, since the outer shape of the element substrate 10 is larger than the other substrates (the counter substrate 20 and the dustproof substrate 400), the element substrate 10 is mounted on the frame 310 that accommodates these substrates. It can be made easy to adhere only.

  (3) According to the liquid crystal device 1 of the present embodiment, the stress from the frame 310 can be absorbed (relaxed), and thus the display of the reflective liquid crystal device 1 in which light is incident and reflected is particularly provided. Quality can be improved effectively.

  (4) According to the electronic apparatus of the present embodiment, since the liquid crystal device 1 is provided, an electronic apparatus that can suppress color unevenness in the display image of the liquid crystal panel 100 and improve display quality. Can be provided.

  The aspect of the present invention is not limited to the above-described embodiment, 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. It is included in the range. Moreover, it can also implement with the following forms.

(Modification 1)
As described above, the substrate fixed through the frame 310 and the adhesive 510 is the element substrate 10, but is not limited thereto, and only the counter substrate 20 or only the dust-proof substrate 400 is bonded to the frame 310. You may make it do.

(Modification 2)
As described above, the reflection type liquid crystal device 1 includes the element substrate 10, the counter substrate 20, and the dustproof substrate 400. However, if the transmission type liquid crystal device is used, the dustproof substrate is further provided. It is not limited to the structure of a board | substrate, such as adding.

(Modification 3)
As described above, the liquid crystal device 1 is configured to include the element substrate 10, the counter substrate 20, the dustproof substrate 400, the frame 310, and the heat sink 320, but is not limited thereto, and includes, for example, the heat sink 320. The structure which does not include the dustproof substrate 400 may be sufficient. It is sufficient that at least the frame 310 and the liquid crystal panel 100 are included.

(Modification 4)
As described above, the reflective liquid crystal device 1 is not limited to being applied as an electro-optical device, and may be applied to, for example, a transmissive liquid crystal device, an organic EL device, a plasma display, electronic paper (EPD), and the like. May be.

  DESCRIPTION OF SYMBOLS 1 ... Liquid crystal device, 3a ... Scan line, 6a ... Data line, 9a ... Pixel electrode, 10 ... Element substrate as 1st board | substrate, 10a ... Image display area, 16, 22 ... Orientation film, 20 ... As 2nd board | substrate Counter substrate, 21 ... Counter electrode, 30 ... TFT, 50 ... Liquid crystal layer as electro-optical material, 52 ... Sealing material, 53 ... Frame light shielding film, 70 ... Storage capacitor, 100 ... Liquid crystal panel, 100R, 100G, 100B ... Liquid crystal Light valve, 101 ... Data line driving circuit, 102 ... External connection terminal, 104 ... Scanning line driving circuit, 105 ... Wiring, 106 ... Vertical conduction terminal, 200 ... Flexible substrate, 300 ... Capacitance line, 310 ... Frame, 320 ... Heat sink 325 ... Radiating part, 400 ... Dust-proof substrate as third substrate, 510 ... Adhesive, 540 ... Transparent adhesive, 600 ... Parting plate, 1100 ... Liquid crystal projector Tha, 1102 ... lamp unit 1106 ... mirror, 1108 ... dichroic mirror, 1112 ... cross prism, 1113 ... polarizing beam splitter, 1114 ... projection lens 1120 ... screen.

Claims (5)

A first substrate and a second substrate bonded together via an electro-optic material;
A third substrate bonded to one of the first substrate and the second substrate;
A frame for accommodating the first substrate, the second substrate, and the third substrate;
With
An electro-optical device, wherein only one end face of the first substrate, the second substrate, and the third substrate is bonded to the frame via an adhesive. The electro-optical device according to claim 1,
The electro-optical device, wherein the third substrate is a dust-proof substrate. The electro-optical device according to claim 1 or 2,
Of the first substrate, the second substrate, and the third substrate, the outer shape of the one substrate bonded to the frame through the adhesive is larger than the outer shape of the other substrate. Electro-optic device. An electro-optical device according to any one of claims 1 to 3,
The electro-optical device, wherein the first substrate or the second substrate has a reflective pixel electrode.   An electronic apparatus comprising the electro-optical device according to claim 1.

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