JP5109705B2 - Electro-optical device and electronic apparatus - Google Patents

Description

  The present invention relates to an electro-optical device such as a liquid crystal device and an electronic apparatus such as a liquid crystal projector including the electro-optical device, and more particularly to a technical field related to heat dissipation of the electro-optical device.

  When a liquid crystal panel which is an example of this type of electro-optical device is used as a light valve in a liquid crystal projector, powerful light source light from a light source is condensed on the liquid crystal panel in order to perform enlarged projection on the screen. Incident in the state. When such powerful light source light is incident, the temperature of the liquid crystal panel rises, and the temperature of the liquid crystal sandwiched between the pair of transparent substrates in the liquid crystal panel also rises, leading to deterioration of the characteristics of the liquid crystal. There is a fear. In particular, when the light source has unevenness, the liquid crystal panel is partially heated, and the liquid crystal transmittance may be uneven, which may deteriorate the image quality of the projected image.

  Also, if dust or dirt (hereinafter simply referred to as “dust”) adheres to the surface of the light valve, the image of the dust may also be projected on the projection screen, possibly reducing the quality of the image. There is. For this reason, a dustproof substrate is often provided on the outer surface of the substrate constituting the liquid crystal panel.

  For example, Patent Document 1 proposes a technique for improving the heat dissipation effect of radiating the heat of a liquid crystal panel by housing the liquid crystal panel in a metal case having fins formed on the surface.

JP 2003-15104 A

  However, according to the technique disclosed in Patent Document 1, since the liquid crystal layer and the case in the liquid crystal panel are relatively separated from each other, the heat of the liquid crystal layer may not be sufficiently dissipated. There is a problem.

  The present invention has been made in view of the above problems, for example, and an object thereof is to propose an electro-optical device capable of efficiently dissipating heat and an electronic apparatus including the same.

In order to solve the above problems, an electro-optical device according to the present invention includes a pair of substrates sandwiching an electro-optical material, and the pair of substrates on a side opposite to the electro-optical material side of each of the pair of substrates. together with the dust-proof substrate having a projecting portion that projects from the opposite sides, at least partially disposed on a side surface opposite to each other of each of the projecting portions of the pair of substrates and the dust-proof substrate, the pair of the respective A heat-dissipating member including fins integrally formed with each of the substrate and the dust-proof substrate, the pair of substrates, the dust-proof substrate and the heat-dissipating member, and a first air inlet on one side surface. A fin that is formed on one side surface of each of the pair of substrates and the overhanging portion of the dustproof substrate when viewed from the first air guide port side. One of the cooling air flow paths inside the first air inlet The fins formed on the other side surfaces of each of the pair of substrates and the overhanging portion of the dustproof substrate are seen from the second air inlet side, and the second guide It arrange | positions so that the other part of the flow path of cooling air may be comprised inside an air vent .

According to the electro-optical device according to the present invention, a pair of substrates, for example, to hold the electro-optical material is liquid crystal or the like. The pair of substrates has, for example, an inorganic alignment film made of an inorganic material such as SiO or SiO ₂ on the side facing the electro-optical material on at least one of the substrates. Similarly, an inorganic alignment film may be provided on the side facing the electro-optical material on the other substrate.

  The dustproof substrate is provided on the side of at least one of the pair of substrates that does not face the electro-optical material. For example, a heat radiating member such as a fin or a film having a relatively high thermal conductivity is disposed at least partially on a side surface of at least one of the pair of substrates and the dustproof substrate, and dissipates heat of the one substrate. To do.

  When the heat dissipation member is disposed on the side surface of at least one of the pair of substrates, a relatively large temperature difference (that is, temperature gradient) is generated between the vicinity of the center of the at least one substrate and the side surface. Therefore, the heat of at least one of the substrates can be efficiently dissipated. Alternatively, when the heat dissipating member is disposed on the side surface of at least one of the dustproof substrates, a relatively large temperature gradient is generated between the vicinity of the center of the at least one dustproof substrate and the side surface. Therefore, the heat of at least one of the dustproof substrates can be efficiently dissipated. As a result, a relatively large temperature gradient can be generated between the side of the pair of substrates that are in contact with one dustproof substrate and facing the electro-optical material and the side that faces one of the dustproof substrates. Therefore, the heat of the substrate can be efficiently dissipated.

  In any case, the heat of at least one of the pair of substrates relatively close to the electro-optical material can be efficiently dissipated, and as a result, the heat of the electro-optical material can be efficiently dissipated.

  If the heat dissipation member as described above is not provided, the temperature gradient between the pair of substrates becomes relatively gentle, and for example, there is a possibility that the heat of the electro-optical material cannot be sufficiently dissipated. Then, for example, when the electro-optical device is exposed to relatively strong light source light such as a projector, there is a possibility that the quality of the display image is deteriorated due to heat, for example.

  However, in the present invention, as described above, the heat of the electro-optical material can be efficiently dissipated, so that deterioration of the electro-optical material or the like due to heat can be suppressed, and for example, a high-quality image is displayed. be able to.

In one aspect of the electro-optical device according to the invention , the heat dissipation member includes a fin.

  According to this aspect, since the surface area related to heat dissipation can be increased by the fins, heat can be efficiently dissipated. The heat dissipation may be performed, for example, by supplying cooling air to the fins, or the fins and a housing case for housing the electro-optical device are bonded with an adhesive. It may be carried out by transferring heat to the storage case via.

  In the aspect in which the heat dissipation member includes fins, the fins may be formed integrally with the one substrate.

  With this configuration, the number of parts constituting the electro-optical device can be reduced, which is very advantageous in practice. In addition, for example, an increase in manufacturing costs can be suppressed.

  Note that the fin may be formed by forming a groove on the side surface of one substrate, for example, by etching, half-cut dicing, or the like.

  In an aspect in which the heat dissipating member includes fins, the fins may constitute at least a part of a flow path of cooling air supplied to the electro-optical device.

  With this configuration, a large temperature gradient can be generated between the vicinity of the center and the side surface of the electro-optic panel, as compared with, for example, the case where heat is transferred to the housing case that houses the electro-optic device and dissipated. Therefore, heat can be dissipated more efficiently, which is very advantageous in practice.

In another aspect of the electro-optical device according to the reference invention of the present application, the heat dissipation member includes a heat conductive film having a higher thermal conductivity than the one substrate.

  According to this aspect, for example, by efficiently transferring heat to a housing case that houses the electro-optical device, for example, by a heat conductive film including a material having a relatively high thermal conductivity such as a metal such as aluminum, Heat can be dissipated efficiently.

In another aspect of the electro-optical device according to the reference invention of the present application, the heat radiation member includes a heat radiation film having a higher heat emissivity than the one substrate.

  According to this aspect, for example, when cooling air is supplied to a heat radiating member (ie, air-cooled) by a heat radiation film containing a material having a relatively high thermal emissivity, such as black chrome, black nickel, or ceramic. In addition to heat dissipation by air cooling (that is, heat transfer), heat dissipation by heat radiation can be expected, and heat can be dissipated more effectively.

In another aspect of the electro-optical device according to the reference invention of the present application, the heat dissipation member includes a main body portion disposed on the side surface and an extension extending from the main body portion to a part of the substrate surface of the one substrate. It has a part.

  According to this aspect, since the extending portion is extended to a part of the substrate surface of the one substrate, for example, a surface where one of the pair of substrates and the dustproof substrate face each other is compared. Therefore, it is possible to efficiently dissipate heat in a portion where it is difficult to dissipate heat, which is very advantageous in practice.

  The “part of the substrate surface” typically means a part of a peripheral region located around the pixel region on the substrate surface. Here, the “pixel area” does not mean an area of individual pixels, but means an entire area in which a plurality of pixels are arranged in a plane, and is typically an “image display area” or “display area”. It corresponds to.

In another aspect of the electro-optical device according to the present invention , the dust-proof substrate has a projecting portion that projects from the pair of substrates on one side of the side surface when viewed in plan on the substrate surface.

  According to this aspect, since the dustproof substrate has the overhang portion, the contact area between the dustproof substrate and, for example, the adhesive increases, or the contact area between, for example, air increases, The heat of the substrate is easily dissipated. As a result, a relatively large temperature gradient is generated between each of the pair of substrates and the dustproof substrate, and the heat of the pair of substrates can be efficiently dissipated.

In another aspect of the electro-optical device according to the invention , the pair of substrates, the dust-proof substrate, and the heat dissipation member are accommodated, and at least a flow path of cooling air supplied to at least the heat dissipation member A storage case having an air guide portion constituting a part is further provided.

  According to this aspect, the housing case houses the pair of substrates, the dust-proof substrate, and the heat radiating member, and at least a part of the cooling air flow path that is supplied to the heat radiating member. Has a part. Since the housing case is configured to be suitable for supplying cooling air to the heat radiating member, the heat radiating member can be air-cooled relatively easily, which is very advantageous in practice.

In order to solve the above problems, the electro-optical device according to the reference invention of the present invention is disposed at least partially on a side surface of at least one of the pair of substrates and a pair of substrates sandwiching the electro-optical material, And a heat dissipating member that dissipates heat of the one substrate.

According to the electro-optical device according to the reference invention of the present invention , the heat radiating member can generate a relatively large temperature gradient between the vicinity of the center of the at least one substrate and the side surface. Can be efficiently dissipated. As a result, the heat of the electro-optical material held between the pair of substrates can be efficiently dissipated.

  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, the heat of the electro-optical panel can be efficiently dissipated. For this reason, a projection type display device, a mobile phone, an electronic notebook, a word processor, a viewfinder type or a monitor direct view type video tape recorder, a workstation, a video phone, a POS terminal, which is highly resistant to thermal runaway and thermal destruction, Various electronic devices such as touch panels can be realized.

  The operation and other advantages of the present invention will become apparent from the best mode for carrying out the invention described below.

  Hereinafter, embodiments of an electro-optical device and an electronic apparatus according to the invention will be described with reference to the drawings. In the following drawings, the scales are different for each layer and each member so that each layer and each member can be recognized on the drawing. In the following embodiments, as an example of an electro-optical device, a TFT (Thin Film Transistor) active matrix driving type liquid crystal device with a built-in driving circuit is cited.

<First Embodiment>
A first embodiment of the electro-optical device according to the invention will be described with reference to FIGS. 1 to 3.

  First, the overall configuration of the liquid crystal device according to the present embodiment will be described with reference to FIG. Here, FIG. 1A is a plan view of the liquid crystal device according to the present embodiment as viewed from the counter substrate side to be described later, and FIG. 1B is the AA ′ line in FIG. It is sectional drawing.

  As shown in FIG. 1, the liquid crystal device 1 includes a TFT array substrate 10, a counter substrate 20, and a pair of dustproof glasses 201 and 202. Here, the “TFT array substrate 10” and the “counter substrate 20” according to the present embodiment are examples of the “pair of substrates” according to the present invention, and the “dustproof glass 201” and the “dustproof glass” according to the present embodiment. “202” is an example of the “dust-proof substrate” according to the present invention. Although not shown here, a liquid crystal as an example of the “electro-optical material” according to the present invention is sandwiched between the TFT array substrate 10 and the counter substrate 20.

  As shown in FIG. 1B, on the side surfaces of the TFT array substrate 10, the counter substrate 20, and the dust-proof glasses 201 and 202, fins 10f, 20f, and 201f as examples of the “heat dissipation member” according to the present invention are provided. And 202f are integrally formed.

  For example, when an adhesive is applied to the side surface of the liquid crystal device 1 and the liquid crystal device 1 and a housing case (not shown) are bonded to each other, the fins 10f, 20f, 201f, and 202f are brought into contact with the adhesive of the liquid crystal device 1. Since the area increases, the heat of the liquid crystal device 1 can be efficiently transmitted to the housing case via the adhesive. Therefore, the heat of the liquid crystal device 1 can be dissipated efficiently. In this case, it is desirable that fins are formed on all the side surfaces of the TFT array substrate 10, the counter substrate 20, and the dust-proof glasses 201 and 202.

  Alternatively, for example, when cooling air is supplied to the liquid crystal device 1, the fins 10f, 20f, 201f, and 202f increase the surface area of the liquid crystal device 1 and relatively increase the wind speed on the side surface of the liquid crystal device 1. The heat of the liquid crystal device 1 can be dissipated efficiently. In this case, it is desirable that fins are formed on at least the side surfaces of the TFT array substrate 10, the counter substrate 20, and the dustproof glasses 201 and 202 that are disposed on the cooling air flow path.

  Next, the configuration of the liquid crystal panel 100 will be described in detail with reference to FIGS. FIG. 2 is a plan view of the TFT array substrate as viewed from the side of the counter substrate together with the components formed thereon, and FIG. 3 is a cross-sectional view taken along the line HH ′ of FIG.

  2 and 3, in the liquid crystal panel 100, the TFT array substrate 10 and the counter substrate 20 are disposed to face each other. The TFT array substrate 10 is made of a substrate such as a quartz substrate, a glass substrate, or a silicon substrate, and the counter substrate 20 is made of a substrate such as a quartz substrate or a glass substrate. 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 sealed by a sealing material 52 provided in a seal region located around the image display region 10a. They are glued together.

  The sealing material 52 is made of, for example, an ultraviolet curable resin, a thermosetting resin, or an ultraviolet / heat combination type curable resin for bonding the two substrates, and is applied to the TFT array substrate 10 in the manufacturing process, and then irradiated with ultraviolet rays. And cured by heating or the like. In the sealing material 52, a gap material such as glass fiber or glass beads for dispersing the distance (ie, gap) between the TFT array substrate 10 and the counter substrate 20 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.

  In FIG. 2, a light-shielding frame light-shielding film 53 that defines the image display region 10 a is provided on the counter substrate 20 side in parallel with the inside of the seal region where the sealing material 52 is disposed. However, part or all of the frame light shielding film 53 may be provided as a built-in light shielding film on the TFT array substrate 10 side.

  A data line driving circuit 101 and an external circuit connection terminal 102 are provided along one side of the TFT array substrate 10 in a region located outside the sealing region in which the sealing material 52 is disposed in the peripheral region. The sampling circuit 7 is provided so as to be covered with the frame light shielding film 53 on the inner side of the seal region along the one side. The scanning line driving circuit 104 is provided so as to be covered with the frame light shielding film 53 in the frame area inside the seal area 52a along two sides adjacent to the one side.

  On the TFT array substrate 10, vertical conduction terminals 106 for connecting the two substrates with the vertical conduction material 107 are arranged in regions facing the four corner portions of the counter substrate 20. Thus, electrical conduction can be established between the TFT array substrate 10 and the counter substrate 20. Further, a lead wiring 90 for electrically connecting the external circuit connection terminal 102 to the data line driving circuit 101, the scanning line driving circuit 104, the vertical conduction terminal 106, and the like is formed.

  In FIG. 3, on the TFT array substrate 10, a laminated structure in which pixel switching TFTs as drive elements, wiring lines such as scanning lines and data lines are formed is formed. Although the detailed structure of this laminated structure is not shown in FIG. 3, pixel electrodes 9a made of a transparent material such as ITO (Indium Tin Oxide) are provided on the laminated structure in a predetermined pattern for each pixel. It is formed in an island shape.

  The pixel electrode 9a is formed in the image display region 10a on the TFT array substrate 10 so as to face a counter electrode 21 described later. On the surface of the TFT array 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.

  A light shielding film 23 is formed on the surface of the counter substrate 20 facing the TFT array substrate 10. For example, the light shielding film 23 is formed in a lattice shape when viewed in plan on the facing surface of the facing substrate 20. In the counter substrate 20, a non-opening area is defined by the light shielding film 23, and an area partitioned by the light shielding film 23 is an opening area that transmits light emitted from, for example, a projector lamp or a direct viewing backlight. The light shielding film 23 may be formed in a stripe shape, and the non-opening region may be defined by the light shielding film 23 and various components such as data lines provided on the TFT array substrate 10 side.

  On the light shielding film 23, a counter electrode 21 made of a transparent material such as ITO is formed so as to face the plurality of pixel electrodes 9a. In order to perform color display in the image display region 10a on the light shielding film 23, a color filter (not shown in FIG. 3) may be formed in a region including a part of the opening region and the non-opening region. An alignment film 22 is formed on the counter electrode 21 on the counter surface of the counter substrate 20.

  In addition to the data line driving circuit 101, the scanning line driving circuit 104, the sampling circuit 7 and the like on the TFT array substrate 10 shown in FIGS. 2 and 3, a plurality of data lines are pre-programmed at a predetermined voltage level. A precharge circuit that supplies a charge signal prior to an image signal, an inspection circuit for inspecting the quality, defects, and the like of the liquid crystal device during manufacture or at the time of shipment may be formed.

(First modification)
Next, a first modification of the liquid crystal device according to the first embodiment will be described with reference to FIG. Here, FIG. 4A is a plan view of the liquid crystal device according to the present modification viewed from the side of the counter substrate, which has the same concept as FIG. 1A, and FIG. It is the BB 'line sectional view of Drawing 4 (a) of the same meaning as b).

  As shown in FIG. 4A, in the liquid crystal device 2 according to this modification, the liquid crystal panel 100 is disposed in each of the dust-proof glasses 201 and 202 in plan view. In other words, each of the dustproof glasses 201 and 202 protrudes from the side of the liquid crystal panel 100 to the side surface side.

  Thereby, since the area which concerns on heat dissipation increases as the liquid crystal device 2 whole, the heat of the liquid crystal panel 100 can be dissipated efficiently. In addition, when cooling air is supplied to the liquid crystal device 2, the side surface of the liquid crystal panel 100 is recessed from the dust-proof glasses 201 and 201 as shown in FIG. Can be faster.

  Of the dustproof glasses 201 and 202, a portion protruding in the left-right direction in FIG. 4B from the side surface of the liquid crystal panel 100 (or the side of the liquid crystal panel 100 indicated by a dotted line in FIG. 4A). The outer portion) is an example of the “overhang portion” according to the present invention.

(Second modification)
Next, a second modification of the liquid crystal device according to the first embodiment will be described with reference to FIG. FIG. 5 is a cross-sectional view taken along the line AA ′ of FIG. 1 (a), which has the same purpose as FIG. 1 (b).

  As shown in FIG. 5, in the liquid crystal device 3 according to this modification, the fins 301 to 304 are formed by members different from the TFT array substrate 10, the counter substrate 20, and the dustproof glasses 201 and 202, respectively. For this reason, the fins 301 to 304 can be formed using a material having a relatively high heat transfer coefficient such as metal, for example. When the fins 301 to 304 are bonded to the corresponding TFT array substrate 10, counter substrate 20, and dustproof glasses 201 and 202, for example, the thermal conductivity of an adhesive or the like mixed with metal particles is used. It is desirable to use a relatively high adhesive.

Second Embodiment
Next, a second embodiment according to the electro-optical device of the invention will be described with reference to FIG. The second embodiment is the same as the first embodiment except that a heat dissipation film is provided instead of the fin. Therefore, in the second embodiment, the description overlapping with that of the first embodiment is omitted, and the common portions in the drawing are denoted by the same reference numerals, and only fundamentally different points are described with reference to FIG. explain. FIG. 6 is a cross-sectional view taken along the line AA ′ of FIG. 1 (a), which has the same purpose as FIG. 1 (b).

  As shown in FIG. 6, in the liquid crystal device 4 according to the present embodiment, a material having a relatively high thermal conductivity such as aluminum, for example, on the side surfaces of the TFT array substrate 10, the counter substrate 20, and the dust-proof glasses 201 and 202, Alternatively, a heat dissipation film 401 is formed as another example of the “heat dissipation member” according to the present invention, which includes a material having a relatively high heat emissivity such as black chrome, black nickel, or ceramic.

  Here, in the heat dissipation film 401, the portions disposed along the side surfaces of the TFT array substrate 10, the counter substrate 20, and the dust-proof glasses 201 and 202 are examples of the “main body” according to the present invention. The portion arranged along the upper surface or the lower surface of each of the array substrate 10, the counter substrate 20, and the dust-proof glasses 201 and 202 is an example of the “extension portion” according to the present invention.

  The heat dissipation film 401 may be formed using, for example, an ink jet technique. Further, for example, fins may be formed on the surface of the heat dissipation film 401.

<Third Embodiment>
Next, a third embodiment according to the electro-optical device of the invention will be described with reference to FIG. The third embodiment is the same as the first embodiment except that a storage case is provided. Therefore, the description of the third embodiment that is the same as that of the first embodiment is omitted, and common portions in the drawing are denoted by the same reference numerals, and only fundamentally different points are described with reference to FIG. explain. FIG. 7A is a plan view of the liquid crystal device according to the present embodiment having the same meaning as FIG. 1A as viewed from the counter substrate side, and FIG. It is the side view which looked at the liquid crystal device concerning an embodiment from the side of arrow a in Drawing 7 (a).

  As shown in FIG. 7A, the liquid crystal device 5 according to the present embodiment includes a liquid crystal panel 100, dustproof glasses 201 and 202, a liquid crystal panel 100, a housing case 510 that houses the dustproof glasses 201 and 202, and a liquid crystal. A wiring board 520 connected to the external circuit connection terminal 102 (see FIG. 2) of the panel 100 is provided.

  As shown in FIG. 7B, the housing case 510 is formed with an air inlet 511 as an example of the “air guide portion” according to the present invention that guides the cooling air to the liquid crystal panel 100. Thereby, the cooling air can be efficiently guided to the fins formed on the TFT array substrate 10 or the like.

<Electronic equipment>
Next, a case where the above-described liquid crystal device is applied to a projector which is an example of an electronic device will be described with reference to FIG. The liquid crystal panel 100 in the above-described liquid crystal device is used as a light valve of a projector. FIG. 8 is a plan view showing a configuration example of the projector.

  As shown in FIG. 8, a projector 1100 includes a lamp unit 1102 made of a white light source such as a halogen lamp. The projection light emitted from the lamp unit 1102 is separated into three primary colors of RGB by four mirrors 1106 and two dichroic mirrors 1108 arranged in the light guide 1104, and serves as a light valve corresponding to each primary color. The light enters the liquid crystal panels 1110R, 1110B, and 1110G.

  The configurations of the liquid crystal panels 1110R, 1110B, and 1110G have the same configuration as that of the above-described liquid crystal device, and are driven by R, G, and B primary color signals supplied from the image signal processing circuit, respectively. The light modulated by these liquid crystal panels enters the dichroic prism 1112 from three directions. In this dichroic prism 1112, R and B light is refracted at 90 degrees, while G light travels straight. Accordingly, as a result of the synthesis of the images of the respective colors, a color image is projected onto the screen or the like via the projection lens 1114.

  Here, paying attention to the display images by the liquid crystal panels 1110R, 1110B, and 1110G, the display images by the liquid crystal panels 1110R and 1110B need to be horizontally reversed with respect to the display images by the liquid crystal panel 1110G.

  Since light corresponding to the primary colors R, G, and B is incident on the liquid crystal panels 1110R, 1110B, and 1110G by the dichroic mirror 1108, it is not necessary to provide a color filter.

  In addition to the electronic device described with reference to FIG. 8, a mobile personal computer, a mobile phone, a liquid crystal television, a viewfinder type or a monitor direct view type video tape recorder, a car navigation device, a pager, and an electronic notebook , Calculators, word processors, workstations, videophones, POS terminals, devices with touch panels, and the like. Needless to say, the present invention can be applied to these various electronic devices.

  The present invention is not limited to the above-described embodiments, 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. In addition, an electronic apparatus including the electro-optical device is also included in the technical scope of the present invention.

(A) is the top view which looked at the liquid crystal device concerning a 1st embodiment from the counter substrate side, and (b) is an AA 'line sectional view of Drawing 1 (a). It is the top view which looked at the liquid crystal panel which concerns on 1st Embodiment from the side of the opposing board | substrate with the TFT array board | substrate with each component formed on it. It is the HH 'sectional view taken on the line of FIG. (A) is the top view which looked at the liquid crystal device concerning the 1st modification of a 1st embodiment from the counter substrate side, and (b) is a BB 'line sectional view of Drawing 4 (a). is there. It is an AA 'line sectional view of a liquid crystal device concerning the 2nd modification of a 1st embodiment. It is an AA 'line sectional view of a liquid crystal device concerning a 2nd embodiment. (A) is the top view which looked at the liquid crystal device concerning a 3rd embodiment from the counter substrate side, and (b) is the liquid crystal device concerning a 3rd embodiment, and the arrow a in Drawing 7 (a). It is the side view seen from the side. It is a top view which shows the structure of the projector which is an example of the electronic device to which the electro-optical apparatus is applied.

Explanation of symbols

  1, 2, 3, 4, 5 ... liquid crystal device, 10 ... TFT array substrate, 10a ... image display area, 20 ... counter substrate, 50 ... liquid crystal layer, 100 ... liquid crystal panel, 201, 202 ... dustproof glass, 10f, 20f , 201f, 202f, 301, 302, 303, 304 ... fins, 401 ... heat dissipation film, 510 ... housing case, 511 ... air inlet, 520 ... wiring board

Claims (2)

A pair of substrates sandwiching the electro-optic material;
The opposite side of the electro-optical material side of each of the pair of substrates, and the dust-proof substrate having a projecting portion that projects from the opposing sides of each of said pair of substrates,
A heat dissipating member including fins that are at least partially disposed on mutually facing side surfaces of each of the pair of substrates and the protruding portion of the dustproof substrate and integrally formed with each of the pair of substrates and the dustproof substrate. When,
A housing case that houses the pair of substrates, the dust-proof substrate, and the heat dissipation member, and that has a first air inlet and a second air inlet on one side surface,
The fins formed on one side surface of each of the pair of substrates and the overhanging portion of the dustproof substrate have a cooling air flow path inside the first air guide port as viewed from the first air guide port side. Arranged to form part of,
The fins formed on the other side surfaces of each of the pair of substrates and the overhanging portion of the dustproof substrate are, as viewed from the second air inlet side, a cooling air flow path inside the second air inlet. An electro-optical device arranged to constitute another part . An electronic apparatus comprising the electro-optical device according to claim 1 .

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