JP2013104991A - Electro-optical module and electronic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electro-optical module capable of efficiently releasing heat generated at an electro-optical panel by utilizing a frame portion of a frame provided around the electro-optical panel, and further to provide an electronic apparatus provided with the electro-optical module.SOLUTION: In an electro-optical module 10, a first groove 61c is formed on a frame portion 61 of a frame 60, an opening 61d of the first groove 61c is covered by a second plate-like cover 70 and a first hollow ventilation passage 191 of which both ends are in opened states is partitioned off. Further, a second groove 62c is formed on a frame portion 62 of the frame 60, an opening 62d of teh second groove 62c is covered by a second plate-like cover 70 and a second hollow ventilation passage 192 of which both ends are in opened states is partitioned off. The second plate-like cover 70 is provided with an engagement plate portion 75 engaging with the frame 60.

Description

  The present invention relates to an electro-optic module used in an electronic apparatus such as a projection display device, and an electronic apparatus including the electro-optic module.

  When an image is displayed on an electronic device such as a projection display device, light modulated by an electro-optical panel such as a liquid crystal panel is used. The electro-optic panel has a configuration in which an electro-optic material layer is provided between a translucent first substrate and a translucent second substrate, and is fixed to a housing such as a frame with an adhesive. Used in the state. When light source light is emitted to such an electro-optical panel, the electro-optical panel rises in temperature and the display quality deteriorates. Thus, a structure has been proposed in which a frame body in which a metal film is formed on the surface of a resin body such as a polycarbonate resin is used as a casing, and a high thermal conductive mold resin is used as an adhesive (see Patent Document 1).

  In addition, in an electro-optical device having a configuration in which a liquid crystal panel is sandwiched between a plate-shaped plate and a plate-shaped cover, a pair of side plates are formed by partially bending a plate on which the liquid crystal panel is disposed inside. A structure has been proposed in which the interval between the side plate portions is set wide, and the liquid crystal panel is cooled by passing cooling air through a hollow cooling air conducting portion defined by the plate, the cover, and the liquid crystal panel (see Patent Document 2). .

JP 2005-196027 A JP 2004-325575 A

  However, even when the high thermal conductive mold resin is used as an adhesive for fixing the liquid crystal panel to the frame body as in the configuration described in Patent Document 1, the thermal conductivity of the high thermal conductive mold resin is reduced to a metal or the like. Compared with this, the heat generated in the liquid crystal panel cannot be efficiently released. In addition, the frame body in which the metal film is formed on the surface of the resin body has a problem that heat generated in the liquid crystal panel cannot be efficiently released because the thermal conductivity of the frame body is low.

  On the other hand, as in the configuration described in Patent Document 2, in the configuration in which the space between the side plate portions of the plate is set wide and the space between the side plate portion and the side surface of the liquid crystal panel is used as the cooling air conduction portion, There is a problem that a function as a housing is lacking, such as a part for positioning the side surface of the liquid crystal panel and a part for supporting the liquid crystal panel cannot be provided.

  In view of the above-described problems, an object of the present invention is to provide an electro-optic module that can efficiently release heat generated in the electro-optic panel by using a frame portion of a frame provided around the electro-optic panel. An object of the present invention is to provide an electronic apparatus including an electro-optic module.

  In order to solve the above-described problems, an electro-optic module according to the present invention includes an electro-optic panel having an image display area and a first frame portion extending along a first side surface of the electro-optic panel. A frame in which a first groove extending in the extending direction of the frame portion is formed; an end plate portion disposed on one side of the electro-optic panel; and a frame extending from the end plate portion side A hollow first air passage having an engaging plate portion to be engaged and covering the opening portion of the first groove and the first groove with both ends in the extending direction of the first frame portion being open ends. And a plate-like cover for partitioning.

  In the present invention, a first groove extending along the first side surface of the electro-optical panel in the frame is formed with a first groove, and the opening of the first groove covers the first plate-like cover. A hollow first air passage is defined. For this reason, when the cooling air supplied to the electro-optic module passes through the first air passage in the electro-optic module, it receives the heat generated by the electro-optic panel and releases it to the outside of the electro-optic module. Therefore, the heat generated in the electro-optical panel can be efficiently released using the frame portion that supports the side surface of the electro-optical panel. Further, since the plate-like cover includes an engagement plate portion that engages with the frame, the plate-like cover can be opened by opening the first groove only by coupling the frame and the plate-like cover using the engagement plate portion. Since the first air passage is partitioned by covering the portion, the electro-optic module having the first air passage can be assembled efficiently.

  In the present invention, in the frame, the second groove extending in the extending direction of the second frame portion in the second frame portion extending along the second side surface facing the first side surface of the electro-optical panel. The plate-like cover covers the opening of the second groove and, together with the second groove, the hollow second of which both sides in the extending direction of the second frame portion are open ends. It is preferable to partition the air passage. According to such a configuration, the cooling air supplied to the electro-optic module passes through the second air passage in the electro-optic module, so that the electro-optic panel can be efficiently cooled.

  In the present invention, the plate-like cover preferably closes the opening of the first groove and the opening of the second groove. If comprised in this way, since the leakage of the cooling air from a 1st ventilation path and a 2nd ventilation path can be prevented, an electro-optical panel can be cooled efficiently.

  In this invention, the said 1st groove | channel and the said 2nd groove | channel are the structure opened on the surface located in the said one surface side or the other surface side of the said electro-optical panel of the said 1st frame part and the said 2nd frame part. Can be adopted.

  In the present invention, the first groove and the second groove may be open on the outer surface of the first frame portion and the second frame portion located on the opposite side of the electro-optical panel. Good.

  In this invention, it is preferable that the said end plate part comprises the parting part with respect to the said image display area. According to such a configuration, there is an advantage that it is not necessary to separately provide a parting member.

  In the present invention, an opening width of the first air passage and the second air flow may be provided in a region facing the plate cover on one side of the frame in the extending direction of the first air passage and the second air passage. It is preferable that an inclined wall for wind guides is formed that is inclined in a direction in which the opening width of the road is enlarged as it goes toward the one side. According to such a configuration, the cooling air is guided from the one side to the electro-optic module and efficiently flows into the first ventilation path and the second ventilation path. For this reason, since the flow velocity of the cooling air in the first air passage and the second air passage is high, the electro-optical panel can be efficiently cooled.

  In the present invention, at least one region of one side and the other side in the extending direction of the first air passage and the second air passage of the frame is on an extension line of the first air passage and the second air passage. It is preferable that a columnar part with a screw hole formed is provided at a position avoiding the extended line of the air passage. According to such a configuration, even when the columnar portion is provided on the frame, the flow rate of the cooling air is reduced by the columnar portion when the cooling air flows into the air passage or when the cooling air flows out from the air passage. Can be prevented. Therefore, the electro-optical panel can be efficiently cooled.

  In the present invention, the electro-optical panel is provided between a first substrate, a second substrate disposed opposite to the first substrate on the one surface side, and the first substrate and the second substrate. It is possible to adopt a configuration including the electro-optic material layer formed.

  In the present invention, the electro-optical panel may be a liquid crystal panel including a liquid crystal layer as the electro-optical material layer.

  The electro-optic module according to the present invention can be used in various electronic devices. When the projection display device is configured as an electronic device, the electronic device includes a light source unit that emits light supplied to the electro-optic module, and a projection optical system that projects light modulated by the electro-optic module. ,have.

It is explanatory drawing of the projection type display apparatus as an example of the electronic device to which this invention is applied. It is explanatory drawing which shows the structure of the optical unit used for the projection type display apparatus to which this invention is applied. It is explanatory drawing which shows the detailed structure of the optical unit used for the projection type display apparatus to which this invention is applied. It is explanatory drawing of the electro-optical panel used for the electro-optical module to which this invention is applied. FIG. 3 is a perspective view of the electro-optic module according to Embodiment 1 of the present invention when viewed from the light emitting side. FIG. 6 is an explanatory diagram of the electro-optic module illustrated in FIG. 5. FIG. 6 is an exploded perspective view when the electro-optic module shown in FIG. 5 is disassembled when viewed from the light emitting side. FIG. 6 is an explanatory diagram illustrating an enlarged cross-sectional configuration of the electro-optic module illustrated in FIG. 5. FIG. 6 is an explanatory diagram showing an enlarged end portion of the electro-optic module shown in FIG. 5. It is explanatory drawing which expands and shows the edge part of the electro-optic module which concerns on Embodiment 2 of this invention. It is a disassembled perspective view when the mode which decomposed | disassembled the electro-optic module which concerns on Embodiment 3 of this invention is seen from the light-projection side. It is explanatory drawing which expands and shows the edge part of the electro-optic module which concerns on Embodiment 3 of this invention. It is explanatory drawing which expands and shows the edge part of the electro-optic module which concerns on Embodiment 4 of this invention. It is explanatory drawing of the electro-optic module which concerns on Embodiment 5 of this invention. FIG. 10 is a plan view of an electro-optic module according to Embodiment 6 of the present invention. It is explanatory drawing which expands and shows the edge part of the electro-optic module which concerns on Embodiment 7 of this invention. It is explanatory drawing which expands and shows the edge part of the electro-optic module which concerns on Embodiment 8 of this invention.

  Embodiments of the present invention will be described with reference to the drawings. In the following description, as an electronic apparatus to which the present invention is applied, a projection display device using an electro-optic module including a transmissive electro-optic panel (transmissive liquid crystal panel) as a light valve will be described. In the drawings referred to in the following description, the scales are different for each layer and each member so that each layer and each member have a size that can be recognized on the drawing.

[Embodiment 1]
(Configuration of projection display device (electronic equipment))
FIG. 1 is an explanatory diagram of a projection display device as an example of an electronic apparatus to which the present invention is applied, and FIGS. 1A and 1B show a planar configuration of a main part of the projection display device. It is explanatory drawing and explanatory drawing when a main part is seen from the side. FIG. 2 is an explanatory diagram showing the configuration of the optical unit used in the projection display device to which the present invention is applied.

  In the projection display device 1 shown in FIG. 1, a power supply unit 7 is disposed on the rear end side inside the exterior case 2, and a light source lamp unit 8 (light source unit) and a power supply unit 7 are adjacent to each other on the front side of the device. An optical unit 9 is arranged. Further, the base end side of the projection lens unit 6 is located in the center of the front side of the optical unit 9 inside the exterior case 2. On one side of the optical unit 9, an interface board 11 on which an input / output interface circuit is mounted is arranged in the front-rear direction of the apparatus, and a video board 12 on which a video signal processing circuit is mounted is parallel to the interface board 11. Has been placed. On the upper side of the light source lamp unit 8 and the optical unit 9, a control board 13 for device drive control is disposed, and speakers 14R and 14L are disposed on the left and right corners on the front end side of the device.

  Above and below the optical unit 9, intake fans 15A and 15B for cooling the inside of the apparatus are arranged. Further, an exhaust fan 16 is disposed on the side of the apparatus that is the back side of the light source lamp unit 8. Further, an auxiliary cooling fan 17 for sucking the cooling airflow from the intake fan 15A into the power supply unit 7 is disposed at a position facing the ends of the interface board 11 and the video board 12. Among these fans, the intake fan 15B mainly functions as a cooling fan for a liquid crystal panel described later.

  In FIG. 2, each optical element (element) constituting the optical unit 9 includes an upper light guide 21 or a lower light guide 22 made of a metal such as Mg or Al, including the prism unit 20 constituting the color light combining means. Is supported by The upper light guide 21 and the lower light guide 22 are fixed to the upper case 3 and the lower case 4 with fixing screws.

(Detailed configuration of the optical unit 9)
FIG. 3 is an explanatory diagram showing a detailed configuration of the optical unit used in the projection display device to which the present invention is applied. As shown in FIG. 3, the optical unit 9 includes a light source lamp 805, an illumination optical system 923 having integrator lenses 921 and 922 that are uniform illumination optical elements, and a light beam W emitted from the illumination optical system 923 as red light. Color light separation optical system 924 that separates the light beams R, G, and B of green, blue. The optical unit 9 includes three transmissive electro-optical panels 40 (R), 40 (G), and 40 (B) as electro-optical panels (light valves) that modulate light beams of each color, and modulated colors. It has a prism unit 20 as a color light combining optical system for combining light beams, and a projection lens unit 6 for enlarging and projecting the combined light beams on the projection surface. In addition, a relay optical system 927 that guides the blue light beam B to the corresponding electro-optical panel 40 (B) among the color light beams separated by the color light separation optical system 924 is provided. The illumination optical system 923 further includes a reflection mirror 931 so that the optical axis 1a of light emitted from the light source lamp 805 is bent at a right angle toward the front of the apparatus. The integrator lenses 921 and 922 are disposed so as to be orthogonal to each other with the reflection mirror 931 interposed therebetween.

  The color light separation optical system 924 includes a blue-green reflecting dichroic mirror 941, a green reflecting dichroic mirror 942, and a reflecting mirror 943. First, in the blue-green reflective dichroic mirror 941, the blue light beam B and the green light beam G included in the light beam W that has passed through the illumination optical system 923 are reflected at right angles to the green reflecting dichroic mirror 942 side. Head. The red light beam R passes through the blue-green reflecting dichroic mirror 941, is reflected at a right angle by the rear reflecting mirror 943, and is emitted from the red light beam emitting portion 944 to the color light combining optical system side. Next, in the green reflection dichroic mirror 942, only the green light beam G is reflected at right angles out of the blue and green light beams B and G reflected by the blue-green reflection dichroic mirror 941, and the color is emitted from the emission portion 945 of the green light beam. The light is emitted to the side of the photosynthetic optical system. The blue light beam B that has passed through the green reflecting dichroic mirror 942 is emitted from the blue light beam emitting portion 946 to the relay optical system 927 side. In this embodiment, the distances from the light beam emitting portion of the illumination optical system 923 to the color light beam emitting portions 944, 945, and 946 in the color light separation optical system 924 are all set to be substantially equal.

  Condensing lenses 951 and 952 are arranged on the emission side of the emission portions 944 and 945 of the red light beam and the green light beam of the color light separation optical system 924, respectively. Therefore, the red light beam and the green light beam emitted from each emitting part are incident on these condenser lenses 951 and 952 and are collimated.

  The collimated red and green light beams R and G are incident on the electro-optical panels 40 (R) and 40 (G) after their polarization directions are aligned by the polarizing plates 160 (R) and 160 (G). Modulated and image information corresponding to each color light is added. That is, the electro-optical panels 40 (R) and 40 (G) are switching-controlled by an image signal corresponding to image information by a driving unit (not shown), thereby modulating each color light passing therethrough. Is called. As such driving means, known means can be used as they are.

  On the other hand, the blue light beam B is guided to the corresponding electro-optical panel 40 (B) through the relay optical system 927 and further aligned in the polarization direction by the polarizing plate 160 (B). Modulation is performed according to the image information. The relay optical system 927 is disposed on the front side of the condensing lens 974, the incident-side reflecting mirror 971, the emitting-side reflecting mirror 972, the intermediate lens 973 disposed between these mirrors, and the electro-optical panel 40 (B). Condensing lens 953 is comprised. As for the length of the optical path of each color beam, that is, the distance from the light source lamp 805 to each liquid crystal panel, the blue beam B is the longest, and the light amount loss of this beam is the greatest. However, the light loss can be suppressed by interposing the relay optical system 927.

  Each color light beam modulated through each electro-optical panel 40 (R), 40 (G), 40 (B) is incident on the polarizing plate 161 (R), 161 (G), 161 (B). The transmitted light is incident on the prism unit 20 (cross dichroic prism) and synthesized. The synthesized color image is enlarged and projected onto a projection surface 1b such as a screen at a predetermined position via a projection lens unit 6 having a projection lens system.

(Configuration of electro-optical panel 40)
FIG. 4 is an explanatory diagram of the electro-optical panel 40 used in the electro-optical module to which the present invention is applied. FIGS. 4A and 4B each show the electro-optical panel 40 together with each component on the second substrate ( It is the top view seen from the side of the opposing board | substrate, and its HH 'sectional drawing.

  In FIG. 4 and FIGS. 5 to 9 described later, the traveling direction of the light source light is indicated by an arrow L11, and the traveling direction of the display light after the light source light is modulated by the electro-optical panel 40 is indicated by an arrow L12. The flow of cooling air supplied to the electro-optical panel 40 by the intake fan 15B shown in FIG. In the following description, one of two directions intersecting each other in the in-plane direction of the electro-optic panel 40 and the electro-optic module is defined as the X-axis direction, the other as the Y-axis direction, and the X-axis direction and the Y-axis direction. Let the intersecting direction be the Z-axis direction. In the drawings referred to below, one side in the X-axis direction (side on which the flexible wiring board 40i is provided) is the X1 side, the other side is the X2 side, and one side in the Y-axis direction is the Y1 side. The other side is the Y2 side, the one side in the Z-axis direction (the side on which the light source light is incident) is the Z1 side, and the other side (the side from which the display light is emitted) is the Z2 side.

  In the projection display device 1 described with reference to FIGS. 1 to 3, when the electro-optical panels 40 (R), 40 (G), and 40 (B) are mounted on the optical unit 9, the electro-optical panel 40 ( R), 40 (G), and 40 (B) are mounted as electro-optic modules 10 (R), 10 (G), and 10 (B), which will be described later. Here, the electro-optical panels 40 (R), 40 (G), and 40 (B) have the same configuration, and include the electro-optical panels 40 (R), 40 (G), and 40 (B). The electro-optic modules 10 (R), 10 (G), and 10 (B) have the same configuration for red (R), green (G), and blue (B). Therefore, in the following description, for the electro-optical panels 40 (R), 40 (G), 40 (B), the electro-optical modules 10 (R), 10 (G), 10 (B), etc., the corresponding colors are used. It demonstrates without attaching | subjecting (R) (G) (B) which shows.

  As shown in FIG. 4, in the electro-optical panel 40, the light-transmitting first substrate 51 (element substrate) and the light-transmitting second substrate 52 (counter substrate) are separated by a sealing material 407 through a predetermined gap. It is pasted together. The first substrate 51 and the second substrate 52 are made of quartz glass, heat-resistant glass or the like. In this embodiment, the first substrate 51 and the second substrate 52 are made of quartz glass. In this embodiment, the electro-optical panel 40 is a liquid crystal panel, and a liquid crystal layer as an electro-optical material layer 450 is held in a region surrounded by the sealing material 407 between the first substrate 51 and the second substrate 52. Yes. The sealing material 407 is provided in a frame shape along the outer edge of the second substrate 52. The sealing material 407 is a photo-curing adhesive, a thermosetting adhesive, or an adhesive having both photo-curing and thermosetting, and the distance between the two substrates is set to a predetermined value. Gap materials such as glass fiber or glass beads are blended.

  In this embodiment, the first substrate 51 has a quadrangular shape and includes side surfaces 511, 512, 513, and 514 on each of the four sides. Similarly to the first substrate 51, the second substrate 52 has a quadrangular shape and includes side surfaces 521, 522, 523, and 524 on each of the four sides. For this reason, the side surface of the electro-optical panel 40 includes side surfaces 511, 512, 513, 514 of the first substrate 51 and side surfaces 521, 522, 523, 524 of the second substrate 52.

  In this embodiment, the first substrate 51 is larger in size than the second substrate 52, and the four side surfaces 511, 512, 513, 514 of the first substrate 51 are respectively larger than the side surfaces 521, 522, 523, 524 of the second substrate 52. Located outside. Therefore, around the second substrate 52, step portions 40s, 40t, 40u, and 40v are formed by the first substrate 51 and the side surfaces 521, 522, 523, and 524 of the second substrate 52, and the step portions 40s, In 40t, 40u, and 40v, the first substrate 51 is exposed from the second substrate 52.

  In the electro-optical panel 40 having such a configuration, the side surface of the electro-optical panel 40 corresponds to the side surfaces 511, 512, 513, and 514 of the first substrate 51, and the “first side surface of the electro-optical panel 40” in the present invention is “the first side”. The “side surface 511 of the first substrate 51” corresponds to the “second side surface of the electro-optical panel 40” and the “side surface 512 of the first substrate 51”.

  At substantially the center of the electro-optical panel 40, an image display area 40a for emitting modulated light is provided as a square area. Corresponding to this shape, the sealing material 407 is also provided in a substantially square shape. Further, in the electro-optical panel 40, a rectangular frame-shaped peripheral region 40c is provided between the end of the image display region 40a and the side surface of the electro-optical panel 40 (the side surfaces 511, 512, 513, and 514 of the first substrate 51). Is provided.

  In the first substrate 51, the end portion on the side where the side surface 514 is located (the end portion on one side Y1 in the Y-axis direction) protrudes greatly from the side surface 524 of the second substrate 52 than the other end portion. A data line driving circuit 401 and a plurality of terminals 402 are formed along the side surface 514. A scanning line driving circuit 404 is formed on the first substrate 51 along the side surfaces 511 and 512. A flexible wiring board 40 i is connected to the terminal 402, and various potentials and various signals are input to the first board 51 through the flexible wiring board 40 i. In the first substrate 51, a reinforcing adhesive 41 is applied so as to straddle the side surface 514 and the flexible wiring substrate 40i.

  Of the first surface 51a and the second surface 51b of the first substrate 51, the first surface 51a opposite to the second substrate 52 corresponds to the image display region 40a, the translucent pixel electrode 405a and the pixel electrode 405a. Pixels including pixel transistors (switching elements / not shown) are formed in a matrix, and an alignment film 416 is formed on the upper side of the pixel electrode 405a. Further, in the first surface 51a of the first substrate 51, a dummy pixel electrode 405b that is formed simultaneously with the pixel electrode 405a is formed in a region inside the sealing material 407 in the peripheral region 40c. For the dummy pixel electrode 405b, a configuration in which the dummy pixel transistor is electrically connected, a configuration in which the dummy pixel transistor is not provided, and a configuration in which the dummy pixel electrode is directly electrically connected to the wiring, or a floating state in which no potential is applied The structure which exists in is adopted.

  Of the first surface 52 a and the second surface 52 b of the second substrate 52, a light-transmitting common electrode 421 is formed on the first surface 52 a facing the first substrate 51. An alignment film 426 is formed. The common electrode 421 is formed across a plurality of pixels as a substantially entire surface of the second substrate 52 or as a plurality of strip-like electrodes. In this embodiment, the common electrode 421 is formed over a substantially entire surface of the second substrate 52. . In addition, a light shielding layer 408 is formed on the first surface 52 a of the second substrate 52 on the lower layer side of the common electrode 421. In this embodiment, the light shielding layer 408 is formed in a frame shape extending along the outer peripheral edge of the image display region 40 a, and the image display region 40 a is defined by the inner edge of the light shielding layer 408. The outer peripheral edge of the light shielding layer 408 is in a position with a gap between the inner peripheral edge of the sealing material 407 and the light shielding layer 408 and the sealing material 407 are not covered. In the second substrate 52, a light shielding layer formed simultaneously with the light shielding layer 408 may be formed as a black matrix or a black stripe in a region overlapping with a region sandwiched between adjacent pixel electrodes 405a.

  On the first substrate 51, an inter-substrate conduction electrode for establishing electrical continuity between the first substrate 51 and the second substrate 52 in a region overlapping the corner portion of the second substrate 52 outside the sealing material 407. 409 is formed. An inter-substrate conductive material 409a containing conductive particles is disposed between the inter-substrate conductive electrode 409 and the second substrate 52, and the common electrode 421 of the second substrate 52 includes the inter-substrate conductive material 409a and the substrate. It is electrically connected to the first substrate 51 side via the inter-connection electrode 409. For this reason, a common potential is applied to the common electrode 421 from the first substrate 51 side. The sealing material 407 is provided along the outer peripheral edge of the second substrate 52 with substantially the same width dimension. However, the sealing material 407 is provided so as to pass through the inside avoiding the inter-substrate conduction electrode 409 in a region overlapping the corner portion of the second substrate 52.

  In the electro-optical panel 40 having such a configuration, in this embodiment, since the pixel electrode 405a and the common electrode 421 are formed of a light-transmitting conductive film such as an ITO film, the electro-optical panel 40 is a transmissive liquid crystal panel. In the case of such a transmissive liquid crystal panel (electro-optical panel 40), light is incident while light incident from one of the first substrate 51 and the second substrate 52 is transmitted through the other substrate and emitted. Is done. In this embodiment, light (indicated by an arrow L11) incident from the second substrate 52 is transmitted through the first substrate 51 and emitted as modulated light (indicated by an arrow L12). For this reason, the second substrate 52 is disposed on one side Z1 in the Z-axis direction (light source light incident side), and the first substrate 51 is disposed on the other side Z2 in the Z-axis direction (display light emission side). . Since the electro-optical panel 40 of this embodiment is used as a light valve in the above-described projection display device (liquid crystal projector), no color filter is formed. However, when the electro-optical panel 40 is used as a direct-view color display device for an electronic apparatus such as a mobile computer or a mobile phone, a color filter is formed on the second substrate 52.

(Overall configuration of electro-optic module 10)
FIG. 5 is a perspective view of the electro-optic module according to Embodiment 1 of the present invention when viewed from the light emitting side. 6 is an explanatory diagram of the electro-optic module shown in FIG. 5, and FIGS. 6A, 6B, 6C, and 6D are plan views when the electro-optic module is viewed from the light emitting side. They are a Ya-Ya 'sectional view, a Xa-Xa' sectional view, and a bottom view when seen from the light incident side. FIG. 7 is an exploded perspective view of the electro-optic module shown in FIG. 5 as seen from the light emitting side. 8 is an explanatory diagram showing an enlarged cross-sectional configuration of the electro-optic module shown in FIG. 5, and FIGS. 8A and 8B are explanatory diagrams showing an enlarged Ya-Ya ′ sectional view, It is explanatory drawing which expands and shows Xa-Xa 'sectional drawing. FIG. 9 is an explanatory diagram showing an enlarged end portion of the electro-optic module shown in FIG. 5, and an enlarged view showing an end portion on the Xa ′ side in the Xa-Xa ′ cross section shown in FIG.

  When the electro-optical panel 40 described with reference to FIG. 4 is mounted on the projection display device 1 and the optical unit 9 described with reference to FIGS. 1 to 3, as shown in FIGS. The electro-optical module 10 in which the electro-optical panel 40 is supported by the frame 60 for the purpose of reinforcement or the like is provided. Further, in the electro-optic module 10 of the present embodiment, the first plate-like cover 80 and the second plate-like cover 70 are used in addition to the electro-optic panel 40 and the frame 60. Hereinafter, the detailed configuration of the electro-optic module 10 will be described with reference to FIG. The form described below is a configuration example in which the first ventilation path 191 and the second ventilation path 192 are formed by the frame 60 and the second plate cover 70.

(Structure of the 1st translucent board 56 and the 2nd translucent board 57)
As shown in FIG. 8 and the like, in this embodiment, when the electro-optic module 10 is configured using the electro-optic panel 40, the second surface 51b of the first substrate 51 (outer surface / second substrate 52 of the first substrate 51 and The first translucent plate 56 is affixed to the opposite surface) with an adhesive or the like, and the second surface 52b of the second substrate 52 (outer surface / surface of the second substrate 52 opposite to the first substrate 51) is second. A translucent plate 57 is affixed with an adhesive or the like. The first light transmitting plate 56 and the second light transmitting plate 57 are each configured as dust-proof glass, and dust and the like are formed on the outer surface (second surface 51b) of the first substrate 51 and the outer surface (second surface) of the second substrate 52. 52b) is prevented from adhering. For this reason, even if dust adheres to the electro-optical panel 40, the dust is separated from the electro-optical material layer 450. Therefore, it is possible to suppress dust from being projected as an image on the image projected from the projection display device 1 described with reference to FIG. Quartz glass, heat-resistant glass, or the like is used for the first light transmitting plate 56 and the second light transmitting plate 57. In this embodiment, the first light transmitting plate 56 and the second light transmitting plate 57 include the first substrate. Like 51 and the 2nd board | substrate 52, quartz glass is used and the thickness is 1.1-1.2 mm.

  Here, the first light transmitting plate 56 is provided so as to overlap at least the image display region 40 a of the electro-optical panel 40 with a part of the second surface 51 b of the first substrate 51 exposed. More specifically, the first light transmissive plate 56 has a rectangular shape smaller than the first substrate 51, and the end portions 561, 562, 563, and 564 of the first light transmissive plate 56 are each in the plan view. One side of the first light-transmitting plate 56 is located inside the side surfaces 511, 512, 513, and 514 of the first substrate 51, and the side surfaces 511, 512, 513, and 514 of the first substrate 51 and the end of the image display area 40a. Located between. Therefore, the end portions 561 and 562 facing each other in the X-axis direction in the first light transmitting plate 56 are each the first side surface (the side surface of the first substrate 51) located on the other side X2 of the electro-optical panel 40 in the X-axis direction. 511) and the image display region 40a, and between the second side surface (side surface 512 of the first substrate 51) located on one side X1 in the X-axis direction of the electro-optical panel 40 and the image display region 40a. . Accordingly, the end of the second surface 51 b of the first substrate 51 on the side where the side surfaces 511 and 512 are located is exposed from the first light transmitting plate 56. Further, the end portions 563 and 564 facing each other in the Y-axis direction in the first light transmitting plate 56 form side surfaces 513 and 514 of the first substrate 51 that constitute a pair of side surfaces facing each other in the Y-axis direction of the electro-optical panel 40. And the end of the image display area 40a, and the end of the second surface 51b of the first substrate 51 on the side where the side surfaces 513 and 514 are located is also exposed from the first light transmitting plate 56. . For this reason, around the 1st translucent board 56, step part 40e, 40f, 40g, by the edge part 561,562,563,564 of the 1st translucent board 56, and the 2nd surface 51b of the 1st board | substrate 51, 40h is configured.

  The second light transmitting plate 57 is provided so as to overlap at least the image display area 40 a of the electro-optical panel 40 with a part of the second surface 52 b of the second substrate 52 exposed. More specifically, the second light transmissive plate 57 is a quadrangle substantially the same size as the first light transmissive plate 56, and is smaller in size than the second substrate 52. Therefore, the end portions 571, 572, 573, and 574 of the second light transmitting plate 57 are respectively located on the inner sides of the side surfaces 521, 522, 523, and 524 of the second substrate 52 along the entire periphery of the second light transmitting plate 57 in plan view. Located between the side surfaces 521, 522, 523, and 524 of the second substrate 52 and the end of the image display area 40a. Therefore, around the second light transmitting plate 57, the step portions 40w, 40x, 40y, and the end portions 571, 572, 573, and 574 of the second light transmitting plate 57 and the second surface 52b of the second substrate 52 are provided. 40z is configured.

(Configuration of frame 60)
In this embodiment, the frame 60 is a rectangular frame-shaped resin member or metal member having a rectangular opening 68 at the center, and surrounds the electro-optical panel 40 and supports the electro-optical panel 40. Frame portions 61, 62, 63 and 64 are provided. In the frame 60 having such a configuration, the frame portion 61 that faces the first side surface of the electro-optical panel 40 (the side surface 511 of the first substrate 51) corresponds to the “first frame portion” in the present invention. The frame portion 62 facing the two side surfaces (the side surfaces 512 of the first substrate 51) corresponds to the “second frame portion” in the present invention.

  In the four frame portions 61, 62, 63, 64 of the frame 60, the connecting portions (corner portions) between adjacent frame portions are prismatic columnar portions 651, 652 protruding toward the other side Z2 in the Z-axis direction. , 653, and 654, and the columnar portions 651, 652, 653, and 654 are seat portions in which screw holes for screwing the electro-optic module 10 to the frame or the like of the projection display device are formed. Yes. The columnar portions 651, 652, 653, and 654 are substantially quadrangular columnar shapes, but of the four corner portions of the outer peripheral surface, three corner portions are curved.

  The frame 60 is made of a metal member or a resin member. In this embodiment, the frame 60 is made of a metal member. When a first plate cover 80 on the incident side, which will be described later, is attached to the frame 60, a panel housing portion 66 is formed inside the frame 60, and the panel housing portion 66 has a bottom portion made of the first plate cover 80. Have.

  In the frame 60, the inner surface of the frame portions 61, 62, 63, 64 is configured with a step portion corresponding to the shape of the end portion in a state where the second light transmissive plate 57 is attached to the electro-optical panel 40. More specifically, as shown in FIG. 8B, on the side surface of the panel housing portion 66, the inner surface of the frame portion 61 located on the other side X2 in the X-axis direction is spaced apart in the Z-axis direction. Step portions 61a and 61b are formed. Of the step portions 61a and 61b, the step portion 61a located on one side Z1 in the Z-axis direction faces the step portion 40w on the electro-optical panel 40 side, and the end portion 571 of the second light transmitting plate 57 is a frame. The side surface 521 of the second substrate 52 is separated from the inner surface of the frame portion 61 via a very narrow gap. Further, the step portion 61b located on the other side Z2 in the Z-axis direction faces the step portion 40s on the electro-optical panel 40 side, and the side surface 511 of the first substrate 51 is spaced from the inner surface of the frame portion 61. Are separated. Here, a plate-like protrusion 619 protruding toward the other side Z2 in the Z-axis direction is formed on the outermost side of the frame portion 61, and the plate-like protrusion 619 is opposed to the Y-axis direction 2. It extends over the entirety between the two columnar portions 651 and 653.

  Further, as shown in FIGS. 8B and 9, in the frame portion 61 (first frame portion), a surface other than the surface facing the first side surface (side surface 511 of the first substrate 51) of the electro-optical panel 40. A first groove 61c extending in the Y-axis direction (extending direction of the side surface 511 of the first substrate 51) is formed. In this embodiment, the first groove 61c is formed along the inner edge of the plate-like protrusion 619 on the surface facing the other side Z2 in the Z-axis direction of the frame 61, and is two columnar shapes facing each other in the Y-axis direction. The entire portion extends between the portions 651 and 653.

  8B, step portions 62a and 62b are formed on the inner surface of the frame portion 62 located on one side X1 in the X-axis direction, like the inner surface of the frame portion 61. The step portion 62 a faces the step portion 40 x on the electro-optical panel 40 side, and the end portion 572 of the second light transmitting plate 57 is separated from the inner surface of the frame portion 62 via a gap, and the side surface of the second substrate 52 522 is separated from the inner surface of the frame portion 62 via a very narrow gap. Further, the step portion 62 b faces the step portion 40 t on the electro-optical panel 40 side, and the side surface 512 of the first substrate 51 is separated from the inner surface of the frame portion 62 via a gap. Here, on the outermost side of the frame portion 62, a plate-like protrusion 629 protruding toward the other side Z2 in the Z-axis direction is formed, and the plate-like protrusion 629 faces 2 in the Y-axis direction. Extending between the two columnar portions 652, 654.

  Further, in the frame portion 62 (second frame portion), a surface other than the surface facing the second side surface (side surface 512 of the first substrate 51) facing the first side surface of the electro-optic panel 40 is arranged in the Y-axis direction ( A second groove 62c extending in the extending direction of the side surface 512 of the first substrate 51 is formed. In this embodiment, the first groove 61c is formed along the inner edge of the plate-like protrusion 619 on the surface facing the other side Z2 in the Z-axis direction of the frame 61, and is two columnar shapes facing each other in the Y-axis direction. Extending between the portions 652 and 654.

  As shown in FIG. 8A, a step portion 63a is formed on the inner surface of the frame portion 63 located on the other side Y2 in the Y-axis direction. The step portion 63 a faces the step portion 40 y on the electro-optical panel 40 side, and the end portion 573 of the second light transmitting plate 57 is separated from the inner surface of the frame portion 63 through a gap, and the side surface of the second substrate 52 523 is separated from the inner surface of the frame portion 63 via a very narrow gap. In the frame portion 63, the outside of the step portion 63 a is a plate-like portion 63 f that spreads in the in-plane direction of the electro-optical panel 40. For this reason, the frame 60 does not exist at a position facing the side surface 513 of the first substrate 51.

  A step portion 64a is formed on the inner surface of the frame portion 64 located on one side Y1 in the Y-axis direction. The step portion 64a faces the step portion 40z on the electro-optical panel 40 side, and the end portion 574 of the second light transmitting plate 57 is separated from the inner surface of the frame portion 64 via a gap. In the frame portion 64, the outside of the step portion 64a is a plate-like portion 64f that spreads in the in-plane direction of the electro-optic panel 40, and a taper surface 64g is formed between the step portion 64a and the plate-like portion 64f. . The flexible wiring board 40i is drawn out of the frame 60 so as to extend along the in-plane direction of the electro-optical panel 40 (in-plane direction of the plate-like portion 64f). Two protrusions 64h are formed on the surface of the plate-like portion 64f located on the flexible wiring board 40i side. For this reason, the displacement toward the plate-like portion 64f side of the flexible wiring board 40i is limited by the protrusion 64h.

  In order to manufacture the electro-optic module 10 using the frame 60 configured as described above, as shown in FIGS. 8A, 8B, and 9, a first plate-like cover on the incident side described later on the frame 60 is used. After attaching 80 and forming the panel housing portion 66 inside the frame 60, the electro-optic panel 40 is housed inside the panel housing portion 66. More specifically, after attaching the first light transmitting plate 56 and the second light transmitting plate 57 to the electro-optical panel 40, from the side where the display light is emitted from the frame 60 (the other side Z2 in the Z-axis direction), The electro-optical panel 40 is provided inside the frame 60 (panel housing portion 66) so that the second light-transmitting plate 57 side is preceded. At this time, the side surfaces 521, 522, 523, and 524 of the second substrate 52 protrude outward from the second light transmitting plate 57. Therefore, the corner portion located between the step portions 61a and 61b in the frame portion 61 is a tapered surface 61g that is inclined obliquely toward the other side Z2 in the Z-axis direction, and the end portion of the second substrate 52 is the inner side with the tapered surface 61g. To guide you. Also in the frame portion 62, similarly to the frame portion 61, the corner portion located between the step portions 62 a and 62 b is a tapered surface 62 g that is inclined toward the other side Z <b> 2 in the Z-axis direction. The portion is guided inward by a tapered surface 62g. In the frame portion 63, the inner edge is a tapered surface 63g that is inclined obliquely toward the other side Z2 in the Z-axis direction, and the end portion of the second substrate 52 is guided inward by the tapered surface 63g. Also in the frame portion 64, the corner portion located between the step portion 64a and the plate-like portion 64f is a tapered surface 64g that is inclined obliquely toward the other side Z2 in the Z-axis direction, and the end portion of the second substrate 52 is the end portion of the second substrate 52. The taper surface 64g guides the inside.

(Configuration of incident-side first plate cover 80)
On the light incident side (one side Z1 in the Z-axis direction) with respect to the frame 60, a plate-like first plate cover 80 made of a metal plate or a resin plate is disposed so as to overlap. In this embodiment, the first plate cover 80 is made of metal, and the surface of the first plate cover 80 facing the one side Z1 in the Z-axis direction is a reflection surface.

  The first plate cover 80 includes a rectangular end plate portion 87 that overlaps the frame 60 on the light incident side, and the end plate portion 87 is formed with an opening portion 88 that overlaps the opening portion 68 of the frame 60. ing. The opening 88 is smaller than the opening 68 of the frame 60, and the end plate part 87 protrudes inside the opening 68 on the entire circumference of the opening 68. For this reason, the end plate portion 87 of the first plate-shaped cover 80 functions as a parting portion that restricts a range in which light enters the electro-optical panel 40.

  The first plate cover 80 includes engagement plate portions 81 and 82 and side plate portions 83 and 84 extending from the outer edge of the end plate portion 87 to the other side Z2 in the Z-axis direction. Of these engaging plate portions 81 and 82 and side plate portions 83 and 84, the side plate portion 83 located on the other side Y2 in the Y-axis direction extends so as to overlap the surface of one side Z1 of the frame portion 63 in the Z-axis direction. And bends obliquely along the shape of the frame portion 63. Further, the side plate portion 84 located on the one side Y1 in the Y-axis direction extends so as to overlap the surface of the one side Z1 in the Z-axis direction of the frame portion 64, and is inclined along the shape of the frame portion 64. It is bent.

  The engaging plate portion 81 located on the other side X2 in the X axis direction extends from the end portion of the end plate portion 87 along the outer surface located on the opposite side of the electrooptic panel 40 in the frame portion 61 to the other side Z2 in the Z axis direction. It is bent at a substantially right angle toward In this embodiment, the engagement plate portion 81 is provided at two locations that are separated from each other in the Y-axis direction, and an engagement hole 810 is formed in each of the two engagement plate portions 81. On the other hand, a protrusion 617 that fits in each of the two engagement holes 810 is formed on the outer surface of the frame portion 61 of the frame 60. Further, the engaging plate portion 82 located on one side X1 in the X-axis direction extends from the end portion of the end plate portion 87 in the Z-axis direction along the outer surface located on the opposite side of the frame portion 62 from the electro-optical panel 40. It is bent at a substantially right angle toward the other side Z2. In the present embodiment, the engagement plate portion 82 is provided at two locations that are separated from each other in the Y-axis direction, and an engagement hole 820 is formed in each of the two engagement plate portions 82. On the other hand, a protrusion 627 that fits into each of the two engagement holes 820 is formed on the outer surface of the frame portion 62 of the frame 60.

  Accordingly, the first plate cover 80 is connected to the frame 60 by engaging the engaging plate portions 81 and 82 provided so as to sandwich the frame 60 with the protrusions 617 and 627 of the frame 60, and is integrated with the frame 60. It has become. As a result, a panel housing portion 66 having the end plate portion 87 of the first plate-like cover 80 as a bottom portion is formed inside the frame 60, and the first light transmitting plate 56 and the second light transmitting plate are formed in the panel housing portion 66. The electro-optical panel 40 with the optical plate 57 attached is accommodated. A protrusion 69 is formed at a position sandwiched between the protrusions 617 and 627 on the outer surfaces of the frame parts 61 and 62 of the frame 60. The protrusion 69 is a second plate-like cover described below. 70 is engaged.

(Configuration of the second plate-like cover 70 on the emission side)
A second plate-like cover 70 made of a metal plate or a resin plate is disposed on the other side Z2 in the Z-axis direction with respect to the electro-optical panel 40 and the first light transmitting plate 56. In this embodiment, the second plate-like cover 70 is made of a metal plate, and the surface on the other side Z2 in the Z-axis direction is a light absorbing surface by blackening treatment. For this reason, even if the light emitted from the electro-optical panel 40 is reflected by the other members toward the electro-optical panel 40, it can be absorbed by the second plate-like cover 70, thereby preventing the generation of stray light. Can do. The second plate cover 70 is made of a metal material having high thermal conductivity such as aluminum or copper, and is configured to function as a heat radiating member.

  In this embodiment, the first translucent plate 56 has a rectangular shape smaller in size than the first substrate 51, and the second surface 51 b of the first substrate 51 extends along the side surfaces 511, 512, 513, and 514 over the entire circumference. It is exposed from the first light transmissive plate 56. Therefore, the second plate-like cover 70 includes an end plate portion 76 that overlaps with the other side Z2 in the Z-axis direction in the outer peripheral region of the second surface 51b over the entire circumference of the first substrate 51. It consists of four plate portions 71, 72, 73, 74.

  In the second plate-like cover 70, the end plate portion 76 includes an inner peripheral side thin plate portion 77 projecting inward from the inner edge, and the inner peripheral side thin plate portion 77 in the first light transmitting plate 56 is an electro-optical panel. It overlaps the surface opposite to the side where 40 is located. Here, the inner peripheral side thin plate portion 77 is formed with an opening 78 in a region overlapping the image display region 40a of the electro-optical panel 40, and the inner peripheral side thin plate portion 77 limits the emission range of the display light. It functions as a parting part on the emission side. Thus, in this embodiment, the parting portion (inner peripheral side thin plate portion 77) is formed integrally with the second plate-shaped cover 70. The thickness dimension of the inner peripheral side thin plate portion 77 is thinner than other portions of the end plate portion 76, for example, 0.2 mm or less.

  In the second plate-like cover 70, the end plate portion 76 has an outer peripheral thin plate portion 711 protruding from the plate portion 71 toward the other side X2 in the X-axis direction, and from the plate portion 72 toward one side X1 in the X-axis direction. An outer peripheral thin plate portion 721 projecting out is formed, and the plate portions 71 and 72 are thick portions 713 and 723 except for the outer peripheral thin plate portion 711 and 721 and the inner peripheral thin plate portion 77, respectively. ing.

  The second plate-like cover 70 is a pair of engagement members extending from the outer edge of the outer peripheral thin plate portion 711 and the outer edge of the outer peripheral thin plate portion 721 toward one side Z1 (the frame 60 side) in the Z-axis direction. A plywood portion 75 is provided, and an engagement hole 750 into which the protrusion 69 of the frame 60 is fitted is formed in the pair of engagement plate portions 75. The engagement plate portion 75 has a smaller dimension in the Y-axis direction than the outer peripheral side thin plate portion 711 and the outer peripheral side thin plate portion 721, and from the center of the outer peripheral side thin plate portion 711 and the outer peripheral side thin plate portion 721 in the Y axis direction. It extends along the outer surface of the frame part 61.

  In the thus configured second plate-like cover 70, the width dimension in the X-axis direction of the thick portion 713 of the plate portion 71 is such that the end portion 561 of the first light transmitting plate 56 and the plate-like protrusion 619 of the frame 60. The width dimension in the X-axis direction of the thick portion 723 of the plate portion 72 is smaller than the separation distance in the X-axis direction, and the plate-like protrusion of the end portion 562 of the first light transmitting plate 56 and the frame portion 62 of the frame 60 is It is smaller than the distance from the portion 629 in the X-axis direction.

  The plate parts 73 and 74 have a dimension (width dimension) in the Y-axis direction larger than a dimension (width dimension) in the X-axis direction of the plate parts 71 and 72. Further, unlike the plate portions 71 and 72, the plate portions 73 and 74 are not formed with the outer peripheral side thin plate portion or the engagement plate portion, and the substantially entire portion excluding the inner peripheral side thin plate portion 77 is the thick portion 733, 743. Here, the dimensions of the frame parts 63 and 64 of the frame 60 in the Z-axis direction are smaller than those of the frame parts 61 and 62. Therefore, the frame portion 63 of the frame 60 does not face the first light transmitting plate 56 on the other side Y2 in the Y axis direction, and the frame 60 on the one side Y1 in the Y axis direction with respect to the first light transmitting plate 56. The frame part 64 is not opposed.

  Further, in the second plate-like cover 70, the surface of the plate portion 74 located on the one side Y1 in the Y-axis direction on the other side Z2 in the Z-axis direction has a plurality at the end located on the one side Y1 in the Y-axis direction. The recesses 747 are formed, and the plurality of recesses 747 are arranged at predetermined intervals in the X-axis direction. For this reason, when the flow of cooling air is formed along the surface of the other side Z2 of the electro-optical panel 40 in the Z-axis direction, the portion sandwiched between the recess 747 and the recess 747 functions as a heat radiating fin.

(Assembly method of electro-optic module 10 and configuration of air passage, etc.)
When assembling the electro-optic module 10 of the present embodiment, the first plate-like cover 80 on the incident side is attached to the frame 60 to form the panel housing portion 66 inside the frame 60, and then the first light-transmissive plate 56 and the second light-transmissive plate 56. The electro-optical panel 40 to which the optical plate 57 is attached is accommodated in the panel accommodating portion 66, and then the second plate-like cover 70 is overlapped on the other side Z 2 in the Z-axis direction with respect to the electro-optical panel 40, and the engaging plate portion 75. The projection 69 of the frame 60 is engaged with the engagement hole 750. As a result, the second plate-like cover 70 and the frame 60 are coupled, and the electro-optical panel 40 is supported by the frame 60, the incident-side first plate-like cover 80, and the emission-side second plate-like cover 70. .

  In this assembled state, the outer peripheral side thin plate portions 711 and 721 of the second plate-shaped cover 70 overlap the end portions of the plate-shaped protrusions 619 and 629 of the frame 60. Further, the frame portion 61 is opposed to the plate portion 71 inside the first groove 61c via a gap in the Z-axis direction, and the frame portion 62 is opposed to the plate portion 72 inside the second groove 62c. It will be opposed through a gap in the axial direction. Therefore, when the second plate-shaped cover 70 is disposed, anaerobic or thermosetting adhesion is performed on the portion inside the first groove 61c of the frame portion 61 and the portion inside the second groove 62c of the frame portion 62. If the agent 79 is applied and cured, the second plate cover 70, the frame 60, and the electro-optical panel 40 can be bonded to each other.

  In this state, the thick portion 713 of the plate portion 71 enters between the end portion 561 of the first translucent plate 56 and the plate-like protrusion 619 of the frame 60, and is out of the second surface 51 b of the first substrate 51. In contact with the end of the side where the side surface 511 is located. Further, the thick portion 723 of the plate portion 72 enters between the end portion 562 of the first light transmitting plate 56 and the plate-like protrusion 629 provided on the frame portion 62 of the frame 60, and the first substrate 51 Of the two surfaces 51b, it contacts the end portion on the side where the side surface 512 is located. The plate portion 73 faces the frame portion 63 of the frame 60 in the Z-axis direction with a predetermined gap, and contacts the end portion of the second surface 51b of the first substrate 51 on the side where the side surface 513 is located. The plate portion 74 faces the frame portion 64 of the frame 60 via a predetermined gap in the Z-axis direction, and contacts the end portion of the second surface 51b of the first substrate 51 on the side where the side surface 514 is located. Further, the inner peripheral side thin plate portion 77 of the second plate cover 70 overlaps the surface of the other side Z2 in the Z-axis direction on the entire circumference of the first light transmitting plate 56 and functions as a parting.

  Further, as described with reference to FIGS. 8B and 9, the first groove 61 c is formed on the surface of the frame portion 61 facing the other side Z <b> 2 in the Z-axis direction. For this reason, the outer peripheral side thin plate portion 711 and the thick portion 713 of the second plate-shaped cover 70 block the opening 61d that opens toward the other side Z2 in the Z-axis direction in the first groove 61c. The cover 70 and the first groove 61c define a hollow first air passage 191 that extends in the Y-axis direction. The first air passage 191 is formed by the frame portion 61 of the frame 60, the plate-like protrusion 619 of the frame 60, the outer peripheral thin plate portion 711 of the second plate-like cover 70, and the thick portion 713 of the second plate-like cover 70. It has a rectangular cross-section with a closed periphery. Here, the columnar portions 651 and 653 are located on the extension line in the Y-axis direction of the first groove 61c, but the portion located inside the first groove 61c in the frame portion 61 is connected to the columnar portions 651 and 653. Grooves are formed between them. For this reason, the first ventilation path 191 opens between the second plate-shaped cover 70 and the frame 60 between the columnar portions 653 and 654 on one side Y1 in the Y-axis direction, and on the other side Y2 in the Y-axis direction. An opening is formed between the columnar portions 651 and 652 between the second plate-like cover 70 and the frame 60. Accordingly, the first ventilation path 191 is open at both ends in the Y-axis direction. Therefore, as indicated by an arrow A0 in FIG. 6A and FIG. 7, a passage for cooling air passing through the first groove 61c (first air passage 191) is formed in the electro-optic module 10. .

  Further, as shown in FIG. 8B, a second groove 62 c is formed on the surface of the frame portion 62 facing the other side Z <b> 2 in the Z-axis direction, and the outer peripheral side thin plate portion of the second plate-like cover 70. 721 and the thick part 723 block the opening 62d that opens toward the other side Z2 in the Z-axis direction in the second groove 62c. As a result, the second plate cover 70 and the second groove 62c extend in the Y-axis direction. The existing hollow second air passage 191 is defined. The second air passage 192 is formed by the frame portion 62 of the frame 60, the plate-like protrusion 629 of the frame 60, the outer peripheral thin plate portion 721 of the second plate-like cover 70, and the thick portion 723 of the second plate-like cover 70. It has a rectangular cross-section with a closed periphery. Here, the columnar portions 652 and 654 are located on the extension line of the second groove 62c in the Y-axis direction, but the portion of the frame portion 62 located on the inner side of the second groove 62c is connected to the columnar portions 652 and 654. Grooves are formed between them. For this reason, the second ventilation path 192 opens between the second plate-shaped cover 70 and the frame 60 between the columnar portions 653 and 654 on one side Y1 in the Y-axis direction, and on the other side Y2 in the Y-axis direction. An opening is formed between the columnar portions 651 and 652 between the second plate-like cover 70 and the frame 60. Accordingly, the second ventilation path 192 is open at both ends in the Y-axis direction. Therefore, as indicated by an arrow A0 in FIG. 6A and FIG. 7, a passage of cooling air passing through the second groove 62c (second air passage 192) is formed in the electro-optic module 10. .

(Main effects of this form)
As described above, in the electro-optic module 10 of this embodiment, the first groove 61c is formed in the frame portion 61 of the frame 60, and the second plate-like cover 70 is formed in the opening 61d of the first groove 61c. A hollow first air passage 191 having both ends opened is defined. Further, the frame portion 62 of the frame 60 is formed with a second groove 62c, and the opening 62d of the second groove 62c is covered with the second plate-like cover 70, and the hollow second state in which both ends are open. Two ventilation paths 192 are defined. For this reason, as shown by the arrow A, when the flow of cooling air from the other side Y2 in the Y-axis direction toward the one side Y1 is formed with respect to the electro-optical panel 40 by the intake fan 15B shown in FIG. The air passes between the columnar portions 651 and 652 and flows into the first ventilation path 191 and the second ventilation path 192 inside the electro-optic module 10, and then from the first ventilation path 191 and the second ventilation path 192. It flows out between the parts 653 and 654. For this reason, since the heat generated in the electro-optical panel 40 can be efficiently released to the cooling air, the temperature increase of the electro-optical panel 40 due to the light source light or the like can be suppressed to a low level.

  In addition, since the second plate-shaped cover 70 includes the engagement plate portion 75 that engages with the frame 60, the frame 60 and the second plate-shaped cover 70 are simply coupled using the engagement plate portion 75. The second plate-like cover 70 covers the openings 61d and 62d of the first groove 61c and the second groove 62c, so that the first air passage 191 and the second air passage 192 are defined. Accordingly, the electro-optic module 10 including the first air passage 191 and the second air passage 192 can be efficiently assembled.

  Further, since the second plate-like cover 70 blocks the openings 61d and 62d of the first groove 61c and the second groove 62c and partitions the first air passage 191 and the second air passage 192, the cooling air is supplied to the first air passage 191 and the second air passage 192. There is no leakage from the first air passage 191 and the second air passage 192. For this reason, since the flow velocity of the cooling air in the first ventilation path 191 and the second ventilation path 192 is high, the electro-optical panel 40 can be efficiently cooled. In addition, since the cooling air heated in the first air passage 191 and the second air passage 192 does not leak from the first air passage 191 and the second air passage 192 and hit the electro-optical panel 40, it is included in the cooling air. It is possible to suppress the moisture that has been introduced from entering the electro-optical panel 40 from the sealing material 407 of the electro-optical panel 40.

  Further, in the second plate-like cover 70, the thick portions 713 and 723 of the end plate portion 76 contribute to partitioning the first ventilation path 191 and the second ventilation path 192, and It is in contact with the second surface 51b. For this reason, the thick portions 713 and 723 of the second plate-like cover 70 efficiently receive the heat generated in the electro-optical panel 40 via the first substrate 51, and the first air passage 191 and the second air passage 192. Efficiently escapes to the cooling air flowing through. Therefore, the cooling efficiency using the 1st ventilation path 191 and the 2nd ventilation path 192 is high. Further, the thick portions 713 and 723 of the second plate-shaped cover 70 are in contact with the element substrate (first substrate 51) that generates a large amount of heat due to absorption of light source light among the first substrate 51 and the second substrate 52. Therefore, the heat generated in the first substrate 51 can be efficiently released.

  Further, in the second plate-like cover 70, the end plate portion 76 is in contact with the second surface 51b of the first substrate 51 around the first light transmitting plate 56, and as shown by an arrow A in FIG. The cooling air supplied to the electro-optical module 10 by the illustrated intake fan 15B and the like flows along the surface on the one side Z1 and the surface on the other side Z2 in the Z-axis direction of the electro-optical module 10. For this reason, the second plate-shaped cover 70 efficiently receives the heat generated in the electro-optical panel 40 via the first substrate 51, and the surface on the one side Z1 in the Z-axis direction of the electro-optical module 10 and the other side. It is possible to efficiently escape to the cooling air flowing along the surface of Z2. In addition, in the second plate-like cover 70, the heat radiation generated in the electro-optical panel 40 is formed on the surface on the other side Z2 in the Z-axis direction of the second plate-like cover 70 because the heat radiation fins including the recesses 747 are formed. Can be released to the cooling air via the first translucent plate 56. Further, the side surface 513 of the first substrate 51 is exposed between the frame 60 and the second plate cover 70 on the upstream side of the cooling air (the other side Y2 in the Y-axis direction). For this reason, since the cooling air directly cools the side surface 513 of the first substrate 51, the heat generated in the electro-optical panel 40 can be efficiently released.

  In addition, columnar portions 653 and 654 are located on an extension line of the first airflow path 191 and the second airflow path 192 to one side Y1 in the Y-axis direction, but three corner portions of the outer peripheral surface of the columnar portions 653 and 654 Has a curved shape, and the side where the first air passage 191 and the second air passage 192 are open in the columnar portions 653 and 654 is a curved surface. In addition, columnar portions 651 and 652 are located on an extension line to the other side Y2 in the Y-axis direction of the first airflow channel 191 and the second airflow channel 192, but three corner portions of the outer peripheral surface of the columnar portions 651 and 652 Because of the curved shape, the side where the first air passage 191 and the second air passage 192 are open in the columnar portions 651 and 652 is a curved surface. Therefore, even when the columnar portions 651, 652, 653, 654 are present on the extended lines of the first air passage 191 and the second air passage 192, the cooling air is curved surfaces of the columnar portions 651, 652, 653, 654. Therefore, the inflow of cooling air into the first air passage 191 and the second air passage 192 and the outflow of cooling air from the first air passage 191 and the second air passage 192 are smooth. Therefore, the cooling air flows with a sufficient flow velocity in the first ventilation path 191 and the second ventilation path 192, and thus the cooling efficiency is high.

  Further, since the end plate portion 76 of the second plate-like cover 70 constitutes a parting part for the image display region 40a, there is an advantage that it is not necessary to separately provide a parting member.

  Further, in this embodiment, on the side where the engagement plate portion 75 is located in the second plate-shaped cover 70 (the side where the first air passage 191 and the second air passage 192 are formed), the other of the Z axis direction from the frame 60 is provided. Plate-shaped protrusions 619 and 629 that protrude in the side Z <b> 2 and extend along the extending direction of the first air passage 191 and the second air passage 192 are formed. Therefore, even when the engagement plate portion 75 is provided on the side where the first air passage 191 and the second air passage 192 are formed, the first air passage 191 and the second air passage 192 are formed by the plate-like protrusions 619 and 629. Can be closed around. Therefore, it is possible to prevent the cooling air from leaking from the first ventilation path 191 and the second ventilation path 192 even if the engagement plate portion 75 is not provided in the entire extending direction of the first ventilation path 191 and the second ventilation path 192. It is possible to prevent the cooling effect from being lowered due to leakage of cooling air.

[Embodiment 2]
FIG. 10 is an explanatory diagram showing an enlarged end portion of the electro-optic module 10 according to Embodiment 2 of the present invention. The end portion on the Xa ′ side of the Xa-Xa ′ line shown in FIG. This corresponds to the enlarged explanation. Since the basic configuration of this embodiment is the same as that of Embodiment 1, common portions are denoted by the same reference numerals and description thereof is omitted.

  In the first embodiment, plate-like protrusions 619 and 629 are formed on the outer edges of the frame part 61 (first frame part) and the frame part 62 (second frame part) of the frame 60, and the plate-like protrusions 619 and 629 are formed. A first groove 61c and a second groove 62c were formed along the inner edge of the first groove 61c. On the other hand, in this embodiment, as shown in FIG. 10, the width of the plate-like protrusion 619 is wider than that of the first embodiment, and the plate-like protrusion 619 has a width on the other side Z2 in the Z-axis direction. A first groove 61c is formed on the surface. For this reason, the plate-like protrusion 619 of the frame portion 61 is divided into an inner plate-like protrusion 619a and an outer plate-like protrusion 619b with the first groove 61c interposed therebetween.

  Also in the frame 60 having such a configuration, as in the first embodiment, the second plate-shaped cover 70 made of metal closes the opening 61d that opens toward the other side Z2 in the Z-axis direction in the first groove 61c. The plate cover 70 and the first groove 61c define a hollow first air passage 191 extending in the Y-axis direction.

  In addition, since the structure of the 2nd groove | channel 62c and the 2nd ventilation path 192 is the same as the structure of the 1st groove | channel 61c and the 1st ventilation path 191, description is abbreviate | omitted.

[Embodiment 3]
FIG. 11 is an exploded perspective view of the electro-optic module 10 according to the third embodiment of the present invention as seen from the light emitting side. FIG. 12 is an explanatory diagram showing an enlarged end portion of the electro-optic module 10 according to Embodiment 3 of the present invention. The end portion on the Xa ′ side of the Xa-Xa ′ line shown in FIG. This corresponds to the enlarged explanation. Since the basic configuration of this embodiment is the same as that of Embodiment 1, common portions are denoted by the same reference numerals and description thereof is omitted.

  In the first embodiment, the first groove 61c and the second groove 62c are formed on the surface on the other side Z2 in the Z-axis direction of the frame portion 61 (first frame portion) and the frame portion 62 (second frame portion) of the frame 60. It had been. On the other hand, in this embodiment, as shown in FIGS. 11 and 12, in the frame portion 61 (first frame portion) of the frame 60, the first groove 61 c is formed on the outer surface opposite to the electro-optical panel 40 side. Is formed. Further, in this embodiment, the side plate portion is extended from the end plate portion 76 to the one side Z1 in the Z-axis direction so as to form the first air passage 191 by closing the opening 61d of the first groove 61c with the first plate cover 80. The engaging plate portion 75 is extended from the side plate portion 755 along the outer surface of the frame portion 61. For this reason, on the outer surface of the frame part 61, the protrusions 69 and 617 are formed on one side Z1 in the Z-axis direction as compared with the first embodiment. In addition, the projecting dimension of the engagement plate portion 81 of the first plate cover 80 is set short.

  Here, the side plate portion 755 is formed over the entire end plate portion 76 of the first plate-like cover 80 in the Y-axis direction. For this reason, when the second plate-like cover 70 is provided on the other side Z2 in the Z-axis direction with respect to the electro-optical panel 40, the side plate portion 755 of the second plate-like cover 70 is located on the other side in the X-axis direction in the first groove 61c. As a result of closing the opening 61d that opens toward X2, the second plate-like cover 70 and the first groove 61c define a hollow first air passage 191 that extends in the Y-axis direction. Note that columnar portions 651 and 653 exist on the extended line of the first groove 61c, and grooves 651a and 653a are formed on the outer surface of the columnar portions 651 and 653 along the extended line of the first groove 61c. Yes. For this reason, both ends in the Y-axis direction of the first air passage 191 are open. Accordingly, when the cooling air flow from the other side Y2 in the Y-axis direction toward the one side Y1 is formed on the electro-optical panel 40 by the intake fan 15B shown in FIG. Flows into the first air passage 191 inside the electro-optic module 10 through the groove 651a of the columnar portion 651, and then flows out from the first air passage 191 through the groove 653a of the columnar portion 653. For this reason, the heat generated in the electro-optical panel 40 can be efficiently released to the cooling air.

  In addition, since the structure of the 2nd groove | channel 62c and the 2nd ventilation path 192 is the same as the structure of the 1st groove | channel 61c and the 1st ventilation path 191, description is abbreviate | omitted.

[Embodiment 4]
FIG. 13 is an explanatory diagram showing an enlarged end portion of the electro-optic module 10 according to Embodiment 4 of the present invention. The end portion on the Xa ′ side in the Xa-Xa ′ line shown in FIG. This corresponds to the enlarged explanation. Since the basic configuration of this embodiment is the same as that of Embodiment 1, common portions are denoted by the same reference numerals and description thereof is omitted.

  In the first embodiment and the like, the first air passage 191 and the second air passage 192 are configured by covering the first groove 61c and the second groove 62c of the frame 60 with the second plate-like cover 70. As described below, the first air passage 191 and the second air passage 192 are configured by covering the first groove 61c and the second groove 62c of the frame 60 with the first plate-like cover 80. Specifically, as shown in FIG. 13, the first groove 61 c is formed on the surface on one side Z <b> 1 in the Z-axis direction of the frame portion 61 of the frame 60. Further, the end plate portion 87 of the first plate cover 80 covers the opening 61d that opens toward the one side Z1 in the Z-axis direction of the first groove 61c to form the first air passage 191. In this embodiment, the end plate portion 87 of the first plate-shaped cover 80 is closed by the first groove 61c and the first plate-shaped cover 80 so that the periphery is closed by closing the opening 61d of the first groove 61c. A ventilation path 191 is configured.

  In addition, since the structure of the 2nd groove | channel 62c and the 2nd ventilation path 192 is the same as the structure of the 1st groove | channel 61c and the 1st ventilation path 191, description is abbreviate | omitted.

[Embodiment 5]
FIG. 14 is an explanatory diagram of the electro-optic module 10 according to the fifth embodiment of the present invention. FIGS. 14A and 14B are a plan view of the electro-optic module 10 and a perspective view of the frame 60. FIG. . Since the basic configuration of this embodiment is the same as that of Embodiment 1, common portions are denoted by the same reference numerals and description thereof is omitted.

  In the first embodiment, the first frame portion 63 located on the upstream side of the cooling air in the frame 60 (one side in the extending direction of the first air passage 191 and the second air passage 192 / the other side Y2 in the Y-axis direction). Although the surface facing the two plate-like covers 70 is a flat plate-like portion 63f, in this embodiment, as shown in FIGS. 14 (a) and 14 (b), the plate-like portion 63f has a columnar portion 651. , 652 is formed with a planar triangular projection 635 provided with inclined wall 635a, 635b for wind guide. More specifically, each of the slope walls 635a and 635b has an opening width of the first air passage 191 and an opening width of the second air passage 192 that are directed toward the other side Y2 in the Y-axis direction (upstream side of the cooling air). It is inclined in the direction to enlarge.

  Therefore, when the cooling air indicated by the arrow A flows between the columnar portions 651 and 652, the cooling air hits the inclined walls 635a and 635b and is efficiently guided to the first air passage 191 side and the second air passage 192 side. become. Accordingly, since the flow velocity of the cooling air in the first air passage 191 and the second air passage 192 is high, the electro-optical panel 40 can be efficiently cooled.

  In FIG. 14, the slope walls 635 a and 635 b are provided with respect to the first embodiment, but the slope walls 635 a and 635 b may be provided with respect to the fourth embodiment. Slope walls 635a and 635b are provided on the surface facing the one plate-like cover 80.

[Embodiment 6]
FIG. 15 is a plan view of the electro-optic module 10 according to Embodiment 6 of the present invention. Since the basic configuration of this embodiment is the same as that of Embodiment 1, common portions are denoted by the same reference numerals and description thereof is omitted.

  In the first embodiment, the columnar portions 651, 652, 653, and 654 exist on the extended lines of the first air passage 191 and the second air passage 192. However, in this embodiment, as shown in FIG. At least one of the columnar portions 653 and 654 formed on one side Y1 in the Y-axis direction and the columnar portions 651 and 652 formed on the other side Y2 in the Y-axis direction is on an extension line of the first air passage 191 And it is provided in the position which avoided the extension line of the 2nd ventilation path 192.

  More specifically, as shown in FIG. 15A, the columnar portions 653 and 654 and the columnar portions 651 and 652 are both on the extension line of the first ventilation path 191 and on the extension line of the second ventilation path 192. Are formed on the extension line of the first ventilation path 191 and on the extension line of the second ventilation path 192. Therefore, as shown by the arrow A1, even when the columnar portions 651, 652, 653, 654 are provided in the frame 60, when the cooling air flows into the first air passage 191 and the second air passage 192, When the cooling air flows out from the first ventilation path 191 and the second ventilation path 192, the flow velocity of the cooling air can be prevented from being lowered by the columnar portions 651, 652, 653, and 654. Therefore, the electro-optical panel 40 can be efficiently cooled.

  In the form shown in FIG. 15B, among the columnar portions 653 and 654 and the columnar portions 651 and 652, the columnar portions 653 and 654 are on the extension line of the first ventilation path 191 and on the extension line of the second ventilation path 192. It is formed at a position avoiding the extension line of the first ventilation path 191 and the extension line of the second ventilation path 192.

  On the other hand, the columnar portions 651 and 652 are provided on the extension line of the first ventilation path 191 and on the extension line of the second ventilation path 192. However, as described in the fifth embodiment, on the upstream side of the cooling air of the frame 60 (one side in the extending direction of the first ventilation path 191 and the second ventilation path 192 / the other side Y2 in the Y-axis direction). Between the columnar portions 651 and 652 of the plate-like portion 63f, a planar triangular projection 635 having inclined air guide walls 635a and 635b is formed. For this reason, as shown by an arrow A1, when air flows between the columnar portions 651 and 652, the air strikes the inclined walls 635a and 635b and efficiently guides to the first air passage 191 side and the second air passage 192 side. Will be.

  In the form shown in FIG. 15C, the columnar portions 653 and 654 and the columnar portions 651 and 652 are all formed on the extension line of the first ventilation path 191 and on the extension line of the second ventilation path 192. The columnar portions 653 and 654 and the columnar portions 651 and 652 are all located on the extension line of the first ventilation path 191 and on the extension line of the second ventilation path 192.

  Further, as described in the fifth embodiment, on the upstream side of the cooling air of the frame 60 (one side in the extending direction of the first ventilation path 191 and the second ventilation path 192 / the other side Y2 in the Y-axis direction). Between the columnar portions 651 and 652 of the plate-like portion 63f, a planar triangular projection 635 having inclined air guide walls 635a and 635b is formed. For this reason, as indicated by the arrow A1, the cooling air directly flows into the first ventilation path 191 and the second ventilation path 192, and the cooling air that flows between the columnar portions 651 and 652 flows into the inclined wall 635a, 635b is efficiently guided to the first ventilation path 191 side and the second ventilation path 192 side.

  In the form shown in FIG. 15D, the columnar portions 653 and 654 and the columnar portions 651 and 652 are all formed on the extension line of the first ventilation path 191 and on the extension line of the second ventilation path 192, The columnar portions 653 and 654 and the columnar portions 651 and 652 are all located on the extension line of the first ventilation path 191 and on the extension line of the second ventilation path 192.

  As described in the fifth embodiment, the upstream side of the cooling air of the frame 60 (one side in the extending direction of the first ventilation path 191 and the second ventilation path 192 / the other side Y2 in the Y-axis direction). Between the columnar portions 651 and 652 of the plate-like portion 63f, a planar triangular projection 635 having inclined air guide walls 635a and 635b is formed.

  Further, on the outer side in the X-axis direction from the columnar portions 651 and 652 of the frame 60, the opening width of the first air passage 191 and the opening width of the second air passage 192 are set to the other side Y2 in the Y-axis direction (upstream side of cooling air). ) Slope walls 636a and 636b for guiding air that are inclined in the direction of enlargement. Therefore, as indicated by the arrow A1, the cooling air passes between the columnar portions 651 and 652 and flows into the first ventilation path 191 and the second ventilation path 192 and through the outside of the columnar portions 651 and 652. In any case, when flowing into the first ventilation path 191 and the second ventilation path 192, they strike the inclined walls 635 a, 635 b, 636 a, 636 b and efficiently guide to the first ventilation path 191 side and the second ventilation path 192 side. Will be.

[Embodiment 7]
FIG. 16 is an explanatory diagram showing an enlarged end portion of the electro-optic module 10 according to Embodiment 7 of the present invention. The end portion on the Xa ′ side of the Xa-Xa ′ line shown in FIG. This corresponds to the enlarged explanation. Since the basic configuration of this embodiment is the same as that of Embodiment 1, common portions are denoted by the same reference numerals and description thereof is omitted.

  In the first and second embodiments, the first air passage 191 and the second air passage 192 are configured by closing the openings 61d and 62d of the first groove 61c and the second groove 62c of the frame 60 with the second plate cover 70. did. On the other hand, in this embodiment, as shown in FIG. 16, the opening 61d of the first groove 61c and the second groove 62c of the frame 60 is partially covered by the second plate cover 70, and the other parts are covered. The first air passage 191 is configured by being blocked by the electro-optical panel 40. More specifically, the thick portion 713 shown in FIG. 9 or the like is not formed in the second plate-shaped cover 70, and therefore the opening 61 d of the first groove 61 c is formed in the second plate-shaped cover 70. And the electro-optical panel 40. Accordingly, the first ventilation path 191 is surrounded by the electro-optical panel 40, the first groove 61c of the frame 60, and the second plate cover 70. Therefore, the electro-optical panel 40 can be directly cooled by the cooling air flowing through the first ventilation path 191.

  Such a configuration is used when the first air passage 191 is configured by covering the openings 61d and 62d of the first groove 61c and the second groove 62c of the frame 60 with the first plate cover 80 as in the fourth embodiment. It may be adopted.

  In addition, since the structure of the 2nd groove | channel 62c and the 2nd ventilation path 192 is the same as the structure of the 1st groove | channel 61c and the 1st ventilation path 191, description is abbreviate | omitted.

[Embodiment 8]
FIG. 17 is an explanatory diagram showing an enlarged end portion of the electro-optic module 10 according to Embodiment 8 of the present invention. The end portion on the Xa ′ side of the Xa-Xa ′ line shown in FIG. This corresponds to the enlarged explanation. Since the basic configuration of this embodiment is the same as that of Embodiment 1, common portions are denoted by the same reference numerals and description thereof is omitted.

  In any of the above embodiments, the first substrate 51 is an element substrate and the second substrate 52 is a counter substrate. However, as shown in FIG. 17, the first substrate disposed on the display light emitting side. Even if the present invention is applied to the electro-optic module 10 in which 51 is a counter substrate and a second substrate 52 larger than the first substrate 51 is arranged on the incident side of the light source light with respect to the first substrate 51 as an element substrate. Good.

[Other forms of electro-optic module]
In the above-described embodiment, the electro-optical module 10 including the transmissive electro-optical panel 40 is illustrated, but the present invention may be applied to the electro-optical module 10 including the reflective electro-optical panel 40. In this case, the first substrate 51 is a counter substrate, the second substrate 52 is an element substrate, and the pixel electrode is formed of a reflective metal film such as aluminum.

  In the said embodiment, although the front projection type display apparatus which projects from the direction which observes a projected image as a projection type display apparatus was illustrated, the rear projection type display apparatus which projects from the opposite side to the direction which observes a projected image The present invention may be applied to a projection display device used for the above.

  In the above embodiment, the liquid crystal panel has been described as an example of the electro-optical panel. However, the present invention is not limited to this, and the organic electroluminescence display panel, plasma display panel, FED (Field Emission Display) panel, SED The present invention may be applied to an electro-optic module using a (Surface-Conduction Electron-Emitter Display) panel, an LED (light emitting diode) display panel, an electrophoretic display panel, or the like.

[Other electronic devices]
As for the electro-optic module to which the present invention is applied, in addition to the electronic device (projection type display device), a mobile phone, an information portable terminal (PDA: Personal Digital Assistants), a digital camera, a liquid crystal television, a car navigation device, You may use as a direct view type display apparatus in electronic devices, such as a video phone, a POS terminal, and the apparatus provided with the touch panel.

1 .... Projection type display device, 10 .... Electro-optical module, 40..Electro-optical panel (liquid crystal panel), 40a..Image display area, 51..First substrate, 52..Second substrate, 56 .. First light transmitting plate 57... Second light transmitting plate 60.. Frame 61.. Frame portion (first frame portion) 61 c .. First groove 61 d. ..Frame portion (second frame portion), 62c ..second groove, 62d ..opening portion of second groove, 66 ..panel housing portion, 70 ..second plate cover, 75, 81. Plywood part, 76, 87 ... End plate part, 80 ... First plate cover, 191 ... First air passage, 192 ... Second air passage, 450 ... Electro-optical material layer (liquid crystal layer), 511 .. Side surface of first substrate (first side surface of electro-optic panel) 512 .. Side surface of first substrate (second side surface of electro-optic panel), 635a, 635b 636a, slope wall for 636b ·· air guide, 651,652,653,654 ... columnar section

Claims (11)

An electro-optical panel having an image display area;
A frame in which a first groove extending in the extending direction of the first frame portion is formed in a first frame portion extending along the first side surface of the electro-optical panel;
An end plate portion disposed on one side of the electro-optic panel; and an engagement plate portion extending from the end plate portion side to engage with the frame, and covering the opening of the first groove A plate-like cover that defines a hollow first air passage that has open ends on both sides in the extending direction of the first frame together with the first groove;
An electro-optic module comprising: In the frame, a second groove extending in a direction in which the second frame portion extends is formed in a second frame portion extending along a second side surface facing the first side surface of the electro-optical panel. And
The plate-like cover defines a hollow second air passage that covers the opening of the second groove and, together with the second groove, has open ends on both sides in the extending direction of the second frame portion. The electro-optic module according to claim 1.   The electro-optic module according to claim 2, wherein the plate-like cover closes the opening of the first groove and the opening of the second groove.   The first groove and the second groove are open on surfaces of the first frame portion and the second frame portion that are located on the one surface side or the other surface side of the electro-optical panel. The electro-optical module according to claim 2.   The said 1st groove | channel and the said 2nd groove | channel are opened in the outer surface located in the opposite side to the said electro-optical panel of the said 1st frame part and the said 2nd frame part, The Claim 2 or 3 characterized by the above-mentioned. The electro-optic module according to 1.   The electro-optic module according to claim 2, wherein the end plate portion constitutes a parting portion for the image display area.   An opening width of the first ventilation path and an opening width of the second ventilation path are provided in a region facing the plate-like cover on one side of the frame in the extending direction of the first ventilation path and the second ventilation path. 7. The electro-optic module according to claim 2, wherein an inclined wall for guiding air is formed that is inclined in a direction in which the angle is increased toward the one side.   At least one region of one side and the other side in the extending direction of the first air passage and the second air passage of the frame has an extension line of the first air passage and an extension of the second air passage. The electro-optic module according to claim 2, wherein a columnar portion in which a screw hole is formed is provided at a position avoiding the line.   The electro-optical panel includes a first substrate, a second substrate disposed opposite to the first substrate on the one surface side, and an electro-optical panel provided between the first substrate and the second substrate. The electro-optic module according to claim 1, further comprising a material layer.   The electro-optical module according to claim 8, wherein the electro-optical panel is a liquid crystal panel including a liquid crystal layer as the electro-optical material layer. An electronic apparatus comprising the electro-optic module according to any one of claims 1 to 10,
A light source unit that emits light supplied to the electro-optic module;
A projection optical system for projecting light modulated by the electro-optic module;
An electronic device characterized by comprising: