JP2009198542A - Electrooptical apparatus and electronic equipment - Google Patents

Abstract

An object of the present invention is to efficiently dissipate heat from the surface of an electro-optical panel.
An electro-optical device (1) includes an electro-optical panel (100) that performs an electro-optical operation in a pixel region (10a) and an opening (311a) corresponding to the pixel region. And a housing case (311) for housing the housing. The electro-optical panel has an opening facing surface (202a) that faces the opening. A part of the electro-optical panel protrudes in a direction along the normal direction of the opening facing surface at least in a portion corresponding to the pixel region in the opening facing surface.
[Selection] Figure 2

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 this type of electro-optical device is used as a light valve in an electronic device such as a liquid crystal projector, for example, the electro-optical device such as a liquid crystal panel that performs an electro-optical operation such as a display operation in a pixel region of the electro-optical device is used. A strong light source from the light source is incident. As a result, the temperature of the electro-optical panel increases, and the performance of the electro-optical panel may be reduced. For example, Patent Document 1 describes a technique for improving a heat dissipation effect of dissipating heat of a liquid crystal panel by housing a liquid crystal panel, which is an example of an electro-optical panel, in a metal case having fins formed on the surface. Has been.

JP 2003-15104 A

  However, according to Patent Document 1, in the manufacturing process, in a state where the liquid crystal panel is supported by the frame portion of the case opening, the adhesive is filled and the liquid crystal panel is fixed, so that the gap between the case opening and the liquid crystal panel is fixed. A step occurs. Then, even if cooling air is supplied to the liquid crystal panel due to this step, there is a technical problem that heat may not be sufficiently dissipated from the surface of the liquid crystal panel.

  The present invention has been made in view of the above problems, for example, and proposes an electro-optical device that can efficiently dissipate heat from the surface of an electro-optical panel and an electronic apparatus including the same. To do.

  In order to solve the above problems, an electro-optical device according to an aspect of the invention includes an electro-optical panel that performs an electro-optical operation in a pixel region, an opening corresponding to the pixel region, and the electro-optical panel. A housing case, wherein the electro-optical panel has an opening facing surface facing the opening, and a part of the electro-optical panel corresponds to at least the pixel region of the opening facing surface. In FIG. 2, the projection protrudes in a direction along the normal direction of the opening facing surface.

  According to the electro-optical device of the present invention, for example, an electro-optical panel such as a liquid crystal panel performs an electro-optical operation such as a display operation in a pixel region on the electro-optical panel when driven. 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”. Is equivalent to. The housing case houses an electro-optical panel while an opening corresponding to the pixel region is formed.

  The electro-optical panel has an opening facing surface that faces the opening. A part of the electro-optical panel protrudes in a direction along the normal direction of the opening facing surface at least in a portion corresponding to the pixel region in the opening facing surface. A part of the electro-optical panel typically protrudes so as to reduce a step generated between the opening facing surface and the outer surface where the opening of the housing case is formed. Desirably, the said part protrudes so that the said outer surface and one surface of the said part may form the same surface (namely, level | step difference is eliminated).

  According to the research of the present inventor, when a step is generated between the opening of the housing case and the electro-optical panel, even if cooling air is supplied to the electro-optical panel, the air resistance increases due to the step, and the electro-optical panel It is difficult to sufficiently dissipate heat from the surface. 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. In addition, dust, dust, etc. (hereinafter also referred to as “dust”) are likely to adhere to the stepped portion. For example, the image of the dust may be projected on the projection screen, which may degrade the image quality. It turns out that there is.

  However, in the present invention, since a part of the electro-optical panel protrudes, the surface including the outer surface can be flattened. As a result, the air resistance due to the step is reduced, so that the speed of the cooling air on the surface of the electro-optical panel is increased and heat can be efficiently dissipated from the surface of the electro-optical panel. At the same time, the speed of the cooling air on the outer surface of the housing case increases, so that the efficiency of heat dissipation of the electro-optical panel through the housing case can be improved.

  In addition, since dust hardly adheres, it is very advantageous in practice. Furthermore, since the thickness of the electro-optical device can be reduced by the relaxed level difference, the electro-optical device can be reduced in size.

  In one aspect of the electro-optical device according to the aspect of the invention, the part protrudes so that a step generated between the opening facing surface and the outer surface of the housing case where the opening is formed is reduced. Yes.

  According to this aspect, the step generated between the opening facing surface and the outer surface on which the opening of the housing case is formed can be reduced or eliminated relatively easily, which is very advantageous in practice. . Note that “so that the level difference is alleviated” means that the distance (typically the height) in the direction along the normal direction of the partial facing surface of the opening approaches the size of the level difference. It means that. In addition, as long as a level | step difference is relieve | moderated, the height of the said part may be larger than the magnitude | size of a level | step difference (namely, the said part may protrude from the said outer surface).

  In another aspect of the electro-optical device according to the aspect of the invention, the part may have a tapered shape that becomes wider toward the opening facing surface on a cross section obtained by cutting the part along a plane intersecting the opening facing surface. Have.

  According to this aspect, since the part has a tapered shape, the part is hardly damaged, which is very advantageous in practice.

  In another aspect of the electro-optical device of the present invention, the electro-optical panel is disposed on a side of the pair of substrates that sandwich the electro-optical material and on the side of the pair of substrates that does not face the electro-optical material. The dust-proof substrate has a substrate surface on the side not facing the one substrate in the dust-proof substrate as the opening facing surface.

According to this aspect, the pair of substrates sandwich the electro-optical material such as liquid crystal. Note that 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 substrate. Similarly, an inorganic alignment film may be provided on the side facing the electro-optical material on the other substrate.

  The dustproof substrate is disposed on the side of at least one of the pair of substrates that does not face the electro-optical material. The substrate surface of the dustproof substrate that does not face one of the substrates corresponds to the opening facing surface of the electro-optical panel. Therefore, the part may be formed by partially protruding the dustproof substrate in a direction along the normal direction of the opening facing surface, or on the dustproof substrate, for example, a plate of glass or the like. It may be formed by disposing a shaped member. In any case, since the part can be formed by performing some processing on the dustproof substrate, the part can be formed relatively easily.

  In an aspect in which the electro-optical panel includes a dustproof substrate, the dustproof substrate protrudes from the substrate surface in a direction along a normal direction of the substrate surface at least in a portion corresponding to the pixel region of the substrate surface. The projecting portion as the part may be provided.

  If comprised in this way, the protrusion part as the said part can be formed, for example by partially shaving a dust-proof board | substrate. In addition, the number of parts constituting the electro-optical device can be reduced, which is very advantageous in practice.

  In the aspect having the protrusion, the protrusion may be formed by cutting out the outer edge of the dust-proof substrate at least partially when viewed in plan on the dust-proof substrate.

  If comprised in this way, a protrusion part can be formed comparatively easily, and it is very advantageous practically. For example, when the outer edge of the dustproof substrate is rectangular, the protruding portion can be formed by cutting out at least two sides facing each other among the four sides. In this way, for example, an increase in manufacturing cost can be suppressed as compared with a case where four sides are cut out (that is, processed). Furthermore, since it is possible to reduce the displacement when the electro-optical panel is arranged in the housing case, it is possible to improve the arrangement accuracy and suppress an increase in manufacturing cost due to the rearrangement.

  In an aspect in which the electro-optical panel includes a dustproof substrate, the electro-optical panel further includes a step relief member as the part disposed on at least a portion corresponding to the pixel region on the substrate surface. Good.

  If comprised in this way, the said part can be formed comparatively easily. In addition, even if an existing product is provided, if the step reducing member is arranged, the same effect as that of the electro-optical device can be obtained, which is very advantageous in practice.

  In the aspect provided with this level | step difference mitigation member, the said level | step difference mitigation member may have thermal conductivity higher than the said dust-proof board | substrate.

  If configured in this manner, the step-reducing member functions not only as a step-relief, but also as a heat-dissipating member that dissipates the heat of the electro-optical panel, which is very advantageous in practice. What is necessary is just to form such a level | step difference mitigation member with a quartz etc., for example.

  In another aspect of the electro-optical device of the present invention, the outer surface of the housing case where the opening is formed and the one surface of the part form the same surface.

  According to this aspect, since the part is formed so that the height of the part is equal to the size of the step, the air resistance caused by the step can be eliminated, and the electro-optical panel can be more efficiently performed. Heat can be dissipated from the surface.

  In another aspect of the electro-optical device according to the aspect of the invention, the direction of the cooling air supplied to the electro-optical device and facing each other across the opening on the outer surface of the housing case where the opening is formed. A convex portion extending along each is formed.

  According to this aspect, the cooling air flowing along at least the surface of the electro-optic panel is rectified to increase the wind speed, and heat can be dissipated more efficiently from the surface of the electro-optic panel.

  In another aspect of the electro-optical device of the present invention, a fin for dissipating heat of the housing case is formed at least partially on the outer surface of the housing case where the opening is formed.

  According to this aspect, since the surface area of the storage case is increased by the fins, the heat of the electro-optical panel can be dissipated more efficiently through the storage case, which is very advantageous in practice.

  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.

  First, the overall configuration of the liquid crystal device according to the present embodiment will be described with reference to FIGS. 1 and 2. FIG. 1 is a perspective view showing the overall configuration of the liquid crystal device according to this embodiment, and FIG. 2 is a cross-sectional view taken along the line AA ′ of FIG.

  In FIG. 1, the liquid crystal device 1 according to this embodiment includes a liquid crystal panel 100, a frame 311, a hook 320, and a wiring board 330. Here, the “liquid crystal panel 100” according to the present embodiment is an example of the “electro-optical panel” according to the present invention, and the “frame 311” and the “hook 320” according to the present embodiment are “ It is an example of a “accommodating case”.

  As shown in FIG. 2, the liquid crystal panel 100 includes a TFT array substrate 10, a counter substrate 20, and 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 glasses 201 and 202” according to the present embodiment are It is an example of the “dust-proof substrate” according to the present invention.

  Here, the configuration of the liquid crystal panel 100 will be described in detail with reference to FIGS. 3 and 4. FIG. 3 is a plan view of the TFT array substrate viewed from the side of the counter substrate together with each component formed thereon, and FIG. 4 is a cross-sectional view taken along the line HH ′ of FIG.

  3 and 4, in the liquid crystal panel 100, the TFT array substrate 10 and the counter substrate 20 are arranged 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 surrounded by an image display region 10a as an example of the “pixel region” according to the present invention. They are bonded to each other by a sealing material 52 provided in a sealing region located in the area.

  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. 3, 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. 4, 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. 4, 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. 4) 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. A precharge circuit that supplies the charge signal prior to the image signal, an inspection circuit for inspecting the quality, defects, etc. of the liquid crystal device 1 during manufacture or at the time of shipment may be formed.

  Returning to FIG. 2 again, the wiring board 330 is electrically connected to the external circuit connection terminal 102 (see FIG. 3). For example, a power supply voltage is applied to a part of a plurality of wirings formed in a stripe shape on the wiring substrate 330, or various signals such as image signals are supplied to other parts of the plurality of wirings. The liquid crystal panel 100 is driven.

  The dust-proof glass 202 is a step formed between the outer surface 311b where the opening 311a of the frame 311 is formed and the substrate surface 202a on the side facing the opening 311a of the dust-proof glass 202 (that is, the frame portion of the opening 311a). The direction along the normal direction of the substrate surface 202a in at least the portion corresponding to the image display region 10a (see FIG. 3) in the substrate surface 202a so that the step difference due to the thickness of the material forming the substrate is reduced. It has the protrusion part 202b which protrudes. Desirably, the protruding portion 202b protrudes such that the outer surface 311b and the upper surface of the protruding portion 202b form the same surface. The “projection 202b” and “substrate surface 202a” according to the present embodiment are examples of “a part of the electro-optical panel” and “opening facing surface” according to the present invention, respectively.

  Thus, in this embodiment, since the dust-proof glass 202 has the protrusion part 202b, since the surface including the outer surface 311b can be flattened, the air resistance due to the step is reduced, and the liquid crystal device 1 The speed of the cooling air on the surface of the liquid crystal panel increases, and heat can be efficiently dissipated from the surface of the liquid crystal panel 100. In addition, since it is difficult for dust to adhere to the stepped portion, it is possible to suppress image quality deterioration caused by, for example, projection of a dust image on a projection screen.

  Here, the dust-proof glass 202 will be described with reference to FIG. Here, FIG. 5A is a plan view of the dust-proof glass 202 viewed from the upper surface side, and FIG. 5B is a cross-sectional view taken along the line BB ′ of FIG.

  As shown in FIG. 5, the protrusion 202b is formed by cutting out the outer edge of the dust-proof glass 202 with a width of 0.5 mm, for example.

(Comparative example)
Next, a comparative example of the liquid crystal device according to the present embodiment will be described with reference to FIG. FIG. 6 is a cross-sectional view taken along the line AA ′ having the same purpose as in FIG. 2.

  As shown in FIG. 6, in the liquid crystal device 400 according to the comparative example, the dust-proof glass 202 does not have a protruding portion, so that the step between the outer surface 311b and the substrate surface 202a is not relaxed. For this reason, air resistance increases due to the level difference, and it becomes difficult to sufficiently dissipate heat from the surface of the liquid crystal panel 100 even when cooling air is supplied to the liquid crystal device 400, for example. In addition, dust easily adheres to the stepped portion.

(First modification)
Next, a first modification of the liquid crystal device according to the present embodiment will be described with reference to FIG. FIG. 7 is a plan view of the dust-proof glass having the same purpose as FIG.

  As shown in FIG. 7, in this modification, the protruding portion 202 b is formed by cutting out only two sides facing each other out of the outer edge of the dust-proof glass 202. For this reason, compared with the case where four sides are notched, for example, an increase in manufacturing cost can be suppressed. Furthermore, since the positional deviation at the time of arrange | positioning the liquid crystal panel 100 in the flame | frame 311 can be reduced, arrangement accuracy can be improved.

(Second modification)
Next, a second modification of the liquid crystal device according to this embodiment will be described with reference to FIG. FIG. 8 is a cross-sectional view taken along the line BB ′ having the same purpose as FIG.

  As shown in FIG. 8, in this modification, instead of cutting out the outer edge of the dust-proof glass 202, a substrate 210 as an example of the “step relief member” according to the present invention is disposed on the dust-proof glass 202. Projecting part. Note that if the substrate 210 is made of a material having a relatively high thermal conductivity such as quartz, the heat of the liquid crystal panel 100 can be dissipated more efficiently.

(Third Modification)
Next, a third modification of the liquid crystal device according to the present embodiment will be described with reference to FIG. Here, FIG. 9A is a plan view of the dust-proof glass having the same meaning as FIG. 5A as viewed from the upper surface, and FIG. 9B is the same as FIG. 5B. FIG. 10 is a cross-sectional view taken along line CC ′ of FIG.

  As shown in FIG. 9B, in the present modification, the side surface of the protruding portion 202b is formed in a tapered shape.

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 the shape of the frame is different. Therefore, in the second embodiment, the description overlapping with that of the first embodiment is omitted, and common portions on the drawing are denoted by the same reference numerals, and only fundamentally different points are described with reference to FIG. explain. FIG. 10 is a perspective view showing the entire configuration of the liquid crystal device according to the present embodiment having the same concept as in FIG.

  As shown in FIG. 10, in the liquid crystal device 2 according to the present embodiment, the frame 312 is opposed to each other across the opening 311a on the outer surface 311b, and the direction of the cooling air supplied to the liquid crystal device 2 Each has a convex portion 312a extending along each. As a result, the cooling air flowing along at least the surface of the liquid crystal panel 100 is rectified to increase the wind speed, and heat can be dissipated from the surface of the liquid crystal panel 100 more efficiently.

<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 the shape of the frame is different. 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 the points that are basically different are described with reference to FIG. explain. FIG. 11 is a perspective view showing the entire configuration of the liquid crystal device according to the present embodiment having the same concept as in FIG.

  As shown in FIG. 11, in the liquid crystal device 3 according to the present embodiment, heat radiation fins 313 a are formed at least partially on the surface of the frame 313. Thereby, since the surface area of the frame 313 increases, the heat of the liquid crystal panel 100 can be dissipated more efficiently via the frame 313.

<Electronic equipment>
Next, a case where the above-described liquid crystal device is applied to a projector that 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. 12 is a plan view showing a configuration example of the projector.

  As shown in FIG. 12, a projector 1100 has 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. 12, 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 embodiment, and can be appropriately changed without departing from the gist or concept 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.

1 is a perspective view illustrating an overall configuration of a liquid crystal device according to a first embodiment. It is the sectional view on the AA 'line of FIG. 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 dustproof glass which concerns on 1st Embodiment from the upper surface side, (b) is BB 'sectional view taken on the line of Fig.5 (a). It is sectional drawing which shows the comparative example of the liquid crystal device which concerns on 1st Embodiment. It is the top view which looked at the dustproof glass which concerns on the 1st modification of 1st Embodiment from the upper surface side. It is sectional drawing which shows the dustproof glass which concerns on the 2nd modification of 1st Embodiment. (A) is the top view which looked at the dust-proof glass which concerns on the 3rd modification of 1st Embodiment from the upper surface side, (b) is CC 'sectional view taken on the line of Fig.9 (a). It is. It is a perspective view which shows the whole structure of the liquid crystal device which concerns on 2nd Embodiment. It is a perspective view which shows the whole structure of the liquid crystal device which concerns on 3rd Embodiment. 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, 400 ... liquid crystal device, 10 ... TFT array substrate, 10a ... image display area, 20 ... counter substrate, 100 ... liquid crystal panel, 201, 202 ... dust-proof glass, 202a ... substrate surface, 202b ... projection, 311, 312, 313 ... frame, 311 a ... opening, 311 b ... outer surface, 320 ... hook, 330 ... wiring board

Claims (12)

An electro-optic panel that performs an electro-optic operation in the pixel region;
An opening corresponding to the pixel region is formed, and a housing case for housing the electro-optic panel,
The electro-optical panel has an opening facing surface that faces the opening,
A part of the electro-optical panel protrudes in a direction along a normal direction of the opening facing surface in at least a portion of the opening facing surface corresponding to the pixel region. .   The said part protrudes so that the level | step difference which arises between the said opening part opposing surface and the outer surface in which the said opening part of the said storage case was formed is relieve | moderated. Electro-optic device.   The said part has the taper shape which becomes wide toward the said opening part opposing surface on the cross section which cut | disconnected the said part in the plane which cross | intersects the said opening part opposing surface. Or the electro-optical device according to 2; The electro-optical panel is
A pair of substrates holding the electro-optic material;
A dust-proof substrate disposed on a side of the pair of substrates not facing the electro-optical material in at least one of the substrates,
The said dust-proof board | substrate has a board | substrate surface of the side which does not oppose said one board | substrate in the said dust-proof board | substrate as said opening part opposing surface. The Claim 1 thru | or 3 characterized by the above-mentioned. Electro-optical device.   The dust-proof substrate has a protrusion as the part that protrudes from the substrate surface in a direction along a normal direction of the substrate surface in at least a portion of the substrate surface corresponding to the pixel region. The electro-optical device according to claim 4.   6. The electro-optical device according to claim 5, wherein the protruding portion is formed by cutting out an outer edge of the dust-proof substrate at least partially when viewed in plan on the dust-proof substrate. .   5. The electro-optical panel according to claim 4, wherein the electro-optical panel further includes a step relief member as the part disposed on at least a portion of the substrate surface corresponding to the pixel region. apparatus.   The electro-optical device according to claim 7, wherein the step reducing member has a higher thermal conductivity than the dustproof substrate.   The electro-optical device according to claim 1, wherein an outer surface of the housing case where the opening is formed and one surface of the part form the same surface.   On the outer surface of the housing case where the opening is formed, convex portions are formed that face each other across the opening and extend in the direction of the cooling air supplied to the electro-optical device. The electro-optical device according to claim 1, wherein   The fin for dissipating heat of the housing case is formed at least partially on the outer surface of the housing case where the opening is formed. The electro-optical device according to 1.   An electronic apparatus comprising the electro-optical device according to claim 1.

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