JP2012088589A - Electro-optical module and electronic equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electro-optical module capable of reducing the cost of a frame, and an electronic equipment provided with the electro-optical module.SOLUTION: In the electro-optical module, a frame 50 used for the electro-optical module 10 of a projection type display device is formed of one flat plate that is bent so as not be overlapped with a light emitting region 40a of a liquid crystal panel 40, and accordingly can reduce the cost of the frame 50. The frame 50 has a face (first face 51) overlapped with a front portion 41 of the liquid crystal panel 40, faces (second face 52 and third face 53) overlapped with side face portions of the liquid crystal panel 40, and faces (fourth face 54 and fifth face 55) overlapped with back portions of the liquid crystal panel 40, and accordingly can surround the periphery of the liquid crystal panel 40 even when the frame 50 is constituted by the one flat plate.

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. When an electro-optical panel is mounted on such an electronic device, the electro-optical panel is held in a frame.

  Such a frame is conventionally constituted by two plate-like members. Therefore, after arranging the electro-optical panel between the two plate-like members, the frame is formed by connecting the two plate-like members by fitting into the boss holes, screwing, caulking, welding, bonding or the like. (See Patent Document 1).

  In addition, after an electro-optical panel is arranged between two plate-like members constituting a frame, the two plate-like members are connected by a hook to constitute a frame (see Patent Document 2).

Paragraph [0025] of Japanese Patent Laid-Open No. 2002-229121, etc. Paragraph [0062] of JP 2009-53588 A, etc.

  However, when the electro-optical panel is held on the frame, there is a problem in that the cost increases if the frame is configured with two members as in the configurations described in Patent Documents 1 and 2.

  In view of the above problems, an object of the present invention is to provide an electro-optic module that can reduce the cost of a frame, and an electronic device including the electro-optic module.

  In order to solve the above-described problems, an electro-optic module according to the present invention includes a front portion provided with a light emitting region from which modulated light is emitted, a back portion facing the front portion, and the back portion and the front portion. 1 and a frame surrounding the electro-optical panel, and the frame is bent so as not to overlap the light emitting region. A first plate that covers one surface of the front portion and the rear portion, and is bent at a first end portion of the first surface, and is formed on the first side portion of the plurality of side portions. A second surface that covers the second side surface portion that is bent at the second end portion facing the first end portion on the first surface and that covers the second side surface portion facing the first side surface portion among the plurality of side surface portions; Connects to the first end on the third surface and the second surface A fourth surface which is bent at an end opposite to the front surface and covers the other surface of the front surface portion and the rear surface portion, and an end portion on the opposite side to the side connected to the second end portion on the third surface. A fifth surface that bends and covers the other surface.

  In the electro-optic module according to the present invention, the frame is composed of a single flat plate that is bent so as not to overlap the light emitting region, so that the cost of the frame can be reduced. The frame has a first surface that covers one surface of the front and back portions of the electro-optical panel, and a surface (second surface) that covers the side surfaces (first and second side surfaces) of the electro-optical panel. And the third surface) and the surfaces (fourth surface and fifth surface) covering the other surface of the electro-optical panel, so that even when the frame is formed of a single flat plate, Can be enclosed.

  In the present invention, the first surface is provided with an opening in a region overlapping with the light emitting region, and the fourth surface and the fifth surface are covered with an end of the other surface, and the light emitting It is preferable not to cover the area. According to this configuration, in the frame, a portion where light can pass is secured on the side where the first surface is located, and a portion where light can pass is secured also on the side where the fourth surface and fifth surface are located. Is done. Accordingly, even if any of the first surface side of the frame or the side on which the fourth surface and the fifth surface are located is arranged on the front portion of the electro-optical panel, emission of modulated light from the electro-optical panel is not hindered. In addition, it is possible to cope with a case where a part through which light passes is necessary for both the front part and the rear part, such as a transmissive liquid crystal panel.

  In the present invention, the fourth surface includes a fourth surface side first extending portion extending from a side where the second surface is positioned toward a side where the third surface is positioned, and the fourth surface side A fourth surface side second extending portion that is bent and extends at a tip portion of the one extending portion, and the fifth surface is a side on which the second surface is positioned from a side on which the third surface is positioned. A first extension portion on the fifth surface side extending toward the first surface, and a second extension portion on the fifth surface side that is bent and extends at the tip of the first extension portion on the fifth surface side. Preferably it is. According to this configuration, it is possible to cover the other surface of the electro-optical panel while securing a portion through which light passes on the side where the fourth surface and the fifth surface are located in the frame.

  In the present invention, the fourth surface includes a fourth surface side third extending portion that is bent toward the second surface side at a tip portion of the fourth surface side second extending portion, and the fifth surface Is preferably provided with a fifth surface side third extending portion that is bent toward the third surface side at a tip portion of the fifth surface side second extending portion. According to such a configuration, the other surface of the electro-optical panel can be widely covered while securing a portion through which light passes on the side where the fourth surface and the fifth surface are located in the frame.

  In this invention, it is preferable that the said 5th surface side 1st extension part is provided in the opposite side to the side where the said 4th surface side 1st extension part extends with respect to the said light-projection area | region. . According to such a configuration, the other surface of the electro-optical panel can be widely covered while securing a portion through which light passes on the side where the fourth surface and the fifth surface are located in the frame.

  In the present invention, the fourth surface has a rectangular frame shape that surrounds the entire circumference of the light emitting region, and the fifth surface has a rectangular frame shape that surrounds the entire periphery of the light emitting region. It is preferable. According to such a configuration, the other surface of the electro-optical panel can be widely covered while securing a portion through which light passes on the side where the fourth surface and the fifth surface are located in the frame.

  In this invention, it is preferable that the said other surface has a step part which the inner side of the corner | angular part produced | generated by the bending of the said 4th surface and the said 5th surface engages. According to such a configuration, the fourth surface and the fifth surface are engaged with the step portion of the electro-optical panel only by covering the fourth surface and the fifth surface on the other surface of the electro-optical panel. It is possible to maintain a state in which the five surfaces cover the other surface of the electro-optical panel. Therefore, when assembling the electro-optic module, it is not necessary to use a member or an adhesive for maintaining the state where the fourth surface and the fifth surface are covered with the other surface of the electro-optic panel. In addition, it is possible to employ a configuration that does not use a member, an adhesive, or the like for maintaining the state where the fourth surface and the fifth surface are covered with the other surface of the electro-optical panel after the assembly of the electro-optical module. Further, after the assembly of the electro-optic module, there is an advantage that a simple configuration is sufficient even when a member or an adhesive for maintaining the state where the fourth surface and the fifth surface are covered with the other surface of the electro-optic panel is used. is there.

  In the present invention, it is preferable that the flat plate has flexibility, and the frame holds the electro-optical panel with elasticity. According to such a configuration, since a large load is not applied to the electro-optical panel, problems such as chipping of the electro-optical panel are unlikely to occur.

  In the present invention, it is preferable that a gap is provided between the electro-optical panel and the second surface and between the electro-optical panel and the third surface. According to this configuration, since the cooling air can be passed between the electro-optical panel and the second surface and between the electro-optical panel and the third surface, the electro-optical panel can be efficiently cooled. .

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

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 schematic 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 which shows a mode that the liquid crystal panel was attached to the prism unit for photosynthesis in the optical unit used for the projection type display apparatus to which this invention is applied. It is explanatory drawing of the liquid crystal panel used for the electro-optic module to which this invention is applied. It is explanatory drawing which shows the external shape of the liquid crystal panel used for the electro-optic module to which this invention is applied. FIG. 3 is an explanatory diagram showing an outer shape of the electro-optic module according to Embodiment 1 of the present invention. It is explanatory drawing of the flame | frame used for the electro-optic module which concerns on Embodiment 1 of this invention. It is explanatory drawing of the flame | frame used for the electro-optic module which concerns on Embodiment 2 of this invention. It is explanatory drawing of the flame | frame used for the electro-optic module which concerns on Embodiment 3 of this invention. It is explanatory drawing of the flame | frame used for the electro-optic module which concerns on Embodiment 4 of this invention. It is explanatory drawing of another projection type display apparatus to which this invention is applied.

  Embodiments of the present invention will be described with reference to the drawings. Before describing the electro-optic module according to each embodiment, the configuration of an electronic device common to each embodiment will be described. In addition, as an electronic apparatus to which the present invention is applied, a projection display device using an electro-optic module provided with 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.

[Configuration of Projection Display Device (Electronic Equipment)]
(Overall configuration of projection display device)
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 a schematic configuration of an optical unit used in a 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, respectively.

  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, the optical elements (elements) constituting the optical unit 9 include the upper light guide 80 or the lower light guide 90 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 80 and the lower light guide 90 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 liquid crystal panels 40 (R), 40 (G), and 40 (B) as electro-optical panels (light valves) that modulate each color beam, and the modulated color beam. The prism unit 20 as a color light combining optical system for combining the light and the projection lens unit 6 for enlarging and projecting the combined light flux on the projection surface. In addition, a relay optical system 927 that guides the blue light beam B to the corresponding liquid crystal 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 photosynthesis 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 parallelized red and green light beams R and G are incident on the liquid crystal panels 40 (R) and 40 (G) after being polarized by the polarizing plates 60 (R) and 60 (G), and then modulated. Then, image information corresponding to each color light is added. That is, the liquid crystal 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. . 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 liquid crystal panel 40 (B) through the relay optical system 927 and then aligned in the polarization direction by the polarizing plate 60 (B). Modulation is performed according to the information. The relay optical system 927 includes a condensing lens 974, an incident-side reflecting mirror 971, an emitting-side reflecting mirror 972, an intermediate lens 973 disposed between these mirrors, and a collector disposed on the front side of the liquid crystal panel 40 (B). An optical lens 953 is included. 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 largest. However, the light loss can be suppressed by interposing the relay optical system 927.

  Each color beam modulated through the liquid crystal panels 40 (R), 40 (G), and 40 (B) is incident on the polarizing plates 61 (R), 61 (G), and 61 (B) and is transmitted therethrough. The incident light enters the prism unit 20 (cross dichroic prism) and is synthesized. The synthesized color image is enlarged and projected onto a projection surface 70 such as a screen at a predetermined position via a projection lens unit 6 having a projection lens system.

(Mounting structure of liquid crystal panel to photosynthetic prism)
FIG. 4 shows a state in which the liquid crystal panels 40 (R), 40 (G), and 40 (B) are attached to the prism unit 20 for photosynthesis in the optical unit 9 used in the projection display device 1 to which the present invention is applied. It is explanatory drawing shown.

  As shown in FIG. 4, in order to mount the liquid crystal panel 40 (B) in the optical unit 9 of the projection display device 1, the electro-optic in which the liquid crystal panel 40 (B) is held on the frame 50 for the purpose of reinforcement or the like. The module 10 (B) is attached to the prism unit 20. At this time, since the polarizing plate 61 (B) is fixed to the prism unit 20, the electro-optic module 10 (B) is attached to the prism unit 20 via the polarizing plate 61 (B). In the electro-optic module 10 (B), a polarizing plate 60 (B) is fixed to the end surface opposite to the side fixed to the prism unit 20.

  Here, in the liquid crystal panel 40 (B), the element substrate 40e on which the pixel electrodes and the pixel transistors are formed and the counter substrate 40f on which the common electrode is formed are interposed through a predetermined gap by a sealing material (not shown). A liquid crystal layer (not shown) is held in a region surrounded by the sealing material between the element substrate 40e and the counter substrate 40f. Further, in the liquid crystal panel 40 (B), dustproof glasses 40g and 40h are respectively attached to the outer surface side of the element substrate 40e and the outer surface side of the counter substrate 40f. The element substrate 40e is larger in size than the counter substrate 40f, and has a protruding portion that protrudes from the end of the counter substrate 40f. In this embodiment, a flexible wiring board 40i as a wiring member is connected to the overhanging portion of the element substrate 40e. The flexible wiring board 40i is pulled out from the inside of the frame 50 and connected to a control unit or the like.

  In this embodiment, in the liquid crystal panel 40 (B), the counter substrate 40 f is disposed on the light incident side, and the element substrate 40 e is disposed on the light emitting side. However, the element substrate 40e may be disposed on the light incident side, and the counter substrate 40f may be disposed on the light emitting side. The liquid crystal panels 40 (R) and 40 (G) are also connected to the prism unit 20 as the electro-optical modules 10 (R) and 10 (G) held in a frame (not shown), similarly to the liquid crystal panel 40 (B). It is attached. The electro-optical modules 10 (R) and 10 (G) including the liquid crystal panels 40 (R) and 40 (G) have the same configuration as the electro-optical module 10 (B) including the liquid crystal panel 40 (B). Have. Therefore, in the following description, the liquid crystal panel 40, the electro-optic module 10, and the like will be described without attaching (R), (G), and (B) indicating the corresponding colors.

[Configuration of Liquid Crystal Panel 40]
FIG. 5 is an explanatory diagram of the liquid crystal panel 40 used in the electro-optic module 10 to which the present invention is applied. FIGS. 5A and 5B each show the liquid crystal panel 40 together with each component from the counter substrate side. It is the top view seen and the HH 'sectional drawing. 6A and 6B are explanatory views showing the outer shape of the liquid crystal panel 40 used in the electro-optic module 10 to which the present invention is applied. FIGS. 6A and 6B show the liquid crystal panel 40 on the side of the counter substrate 40f ( It is explanatory drawing when it sees from the back side, and explanatory drawing when the liquid crystal panel 40 is seen from the element substrate 40e side (front side). In the drawings referred to below, the incident light to the liquid crystal panel 40 is indicated by an arrow L1, and the outgoing light from the liquid crystal panel 40 is indicated by an arrow L2.

  As shown in FIG. 5, in the liquid crystal panel 40, the light-transmitting element substrate 40e and the light-transmitting counter substrate 40f are bonded to each other with a sealant 407 through a predetermined gap, and the element substrate 40e and the counter substrate are bonded. A liquid crystal layer is held in a region surrounded by the sealant 407 between the region 40f and the region 40f. The sealing material 407 is provided in a frame shape along the outer edge of the counter substrate 40f. 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, both the element substrate 40e and the counter substrate 40f are square, and a light emission region 40a for emitting modulated light is provided as a square region at the approximate center of the liquid crystal panel 40. Corresponding to this shape, the sealing material 407 is also provided in a substantially square shape, and a substantially rectangular peripheral region 40c is provided in a frame shape between the inner peripheral edge of the sealing material 407 and the outer peripheral edge of the light emitting region 40a. Yes. In the element substrate 40e, outside the light emitting region 40a, a data line driving circuit 401 and a plurality of terminals 402 are formed along one side of the element substrate 40e, and a scanning line is formed along another side adjacent to the one side. A drive circuit 404 is formed. The flexible wiring board 40i is connected to the terminal 402, and various potentials and various signals are input to the element substrate 40e via the flexible wiring board 40i.

  On one side of the element substrate 40e facing the counter substrate 40f, a pixel transistor (not shown) and a translucent pixel electrode 405a electrically connected to the pixel transistor are arranged in a matrix in the light emitting region 40a. An alignment film 416 is formed on the upper layer side of the pixel electrode 405a. A dummy pixel electrode 405b formed simultaneously with the pixel electrode 405a is formed in the peripheral region 40c on the substrate surface on one side of the element substrate 40e. 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.

  A translucent common electrode 421 is formed on one surface of the counter substrate 40f facing the element substrate 40e, and an alignment film 426 is formed on the common electrode 421. The common electrode 421 is formed across the plurality of pixels as substantially the entire surface of the counter substrate 40f or as a plurality of strip electrodes. Further, a light shielding layer 408 is formed on the lower layer side of the common electrode 421 on one surface side of the counter substrate 40f facing the element substrate 40e. In this embodiment, the light shielding layer 408 is formed in a frame shape extending along the outer peripheral edge of the light emitting region 40a and functions as a parting. 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 counter substrate 40f, a light shielding layer that is formed simultaneously with the light shielding layer 408 may be formed in a region that overlaps with a region sandwiched between adjacent pixel electrodes 405a.

  In the liquid crystal panel 40 configured in this manner, the element substrate 40e is electrically connected between the element substrate 40e and the counter substrate 40f in a region overlapping the corner portion of the counter substrate 40f outside the sealant 407. The inter-substrate conduction electrode 409 is formed. The inter-substrate conducting electrode 409 is provided with an inter-substrate conducting material 409a containing conductive particles, and the common electrode 421 of the counter substrate 40f is interposed via the inter-substrate conducting material 409a and the inter-substrate conducting electrode 409. Are electrically connected to the element substrate 40e side. For this reason, a common potential is applied to the common electrode 421 from the element substrate 40e side. The sealing material 407 is provided along the outer peripheral edge of the counter substrate 40f 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 counter substrate 40f.

  In the liquid crystal 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, the liquid crystal panel 40 is a transmissive type. In the case of such a transmissive liquid crystal panel 40, light (indicated by the arrow L1) incident from one of the element substrate 40e and the counter substrate 40f is transmitted through the other substrate and indicated by the arrow L2. Modulated while exiting. In this embodiment, the light incident from the counter substrate 40f is transmitted through the element substrate 40e and emitted. Note that when the common electrode 421 is formed using a light-transmitting conductive film and the pixel electrode 405a is formed using a reflective conductive film, a reflective liquid crystal device can be formed. In the case of the reflective liquid crystal type liquid crystal panel 40, the light incident from the counter substrate 40f side is modulated while being reflected and emitted by the element substrate 40e side. Further, since the liquid crystal 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 liquid crystal panel 40 is used as a direct-view color display device of an electronic device such as a mobile computer or a mobile phone, a color filter is formed on the counter substrate 40f.

  As shown in FIGS. 5 and 6, in the liquid crystal panel 40, dustproof glasses 40g and 40h are respectively attached to the outer surface side of the element substrate 40e and the outer surface side of the counter substrate 40f. The dust-proof glass 40g has the same size as the element substrate 40e, and the dust-proof glass 40h has the same size as the counter substrate 40f. The element substrate 40e is larger in size than the counter substrate 40f, and the counter substrate 40f is disposed at a position spaced from the element substrate 40e by a predetermined dimension. For this reason, the liquid crystal panel 40 is provided with step portions 40s, 40t, 40u, and 40v due to the counter substrate 40f and the dust-proof glass 40h on the entire circumference.

  In the liquid crystal panel 40 having such a configuration, in this embodiment, the light incident from the counter substrate 40f is transmitted through the element substrate 40e and emitted. Therefore, in the following description, the side on which the element substrate 40e and the dust-proof glass 40g are located is referred to as the front part 41, the side on which the counter substrate 40f and the dust-proof glass 40h are located is referred to as the back part 42, and the front part 41 and the back part 42 The four side surfaces located between the first side surface portion 46, the second side surface portion 47, the third side surface portion 48, and the fourth side surface portion 49 will be described.

[Embodiment 1]
(Configuration of electro-optic module 10)
7A and 7B are explanatory views showing the outer shape of the electro-optic module 10 according to Embodiment 1 of the present invention. FIGS. 7A and 7B each show the electro-optic module 10 on the side of the counter substrate 40f (rear surface). FIG. 6 is an explanatory diagram when viewed from the side) and an explanatory diagram when the electro-optic module 10 is viewed from the element substrate 40e side (front side). FIG. 8 is an explanatory diagram of the frame 50 used in the electro-optic module 10 according to Embodiment 1 of the present invention. FIG. 8A shows a state in which the frame 50 is expanded, and FIG. Steps (b) to (d) show the steps of configuring the electro-optic module 10 using the frame 50. In FIG. 8, a portion corresponding to the liquid crystal panel 40 is shown in gray.

  As shown in FIGS. 7 and 8, the electro-optic module 10 of this embodiment includes a transmissive liquid crystal panel 40 as an electro-optic panel for modulation, and a frame 50 surrounding the liquid crystal panel 40. . In the present embodiment, the frame 50 is composed of a single flat plate 500 bent so as not to overlap the light emitting region 40a, as will be described below. In the present embodiment, the flat plate 500 is a metal plate such as aluminum or SUS. Is used. Moreover, since the flat plate 500 is thin, it has flexibility.

(Configuration of frame 50)
First, the frame 50 has a rectangular first surface 51 that covers one surface of the front surface portion 41 and the rear surface portion 42 of the liquid crystal panel 40. In this embodiment, the first surface 51 covers the front portion 41 (one surface) of the liquid crystal panel 40, and a rectangular opening 51a is formed in a region overlapping the light emitting region 40a. Further, the frame 50 is bent at a right angle at the first end portion 51 e of the first surface 51 and has a rectangular second surface 52 that covers the first side surface portion 46 of the liquid crystal panel 40, and the first end portion 51 e of the first surface 51. The liquid crystal panel 40 has a rectangular third surface 53 that is bent at a right angle at the second end 51f that faces the second side portion 47 and that covers the second side surface portion 47 that faces the first side surface portion 46. Further, the frame 50 is bent at the end opposite to the side connected to the first end 51 e of the second surface 52 and covers the back surface 42 of the liquid crystal panel 40, and the third surface 53 A fifth surface 55 is provided that is bent at the end opposite to the side connected to the two end portions 51f and covers the back surface portion 42 of the liquid crystal panel 40. In the back surface portion 42 of the liquid crystal panel 40, the vertical relationship between the fourth surface 54 and the fifth surface 55 may be any, but in the present embodiment, the fifth surface 55 covers the fourth surface 54.

  Here, the 4th surface 54 and the 5th surface 55 have overlapped with the overhang | projection area | region from the opposing board | substrate 40f in the element substrate 40e among the back surface parts 42 of the liquid crystal panel 40. FIG. For this reason, the 4th surface 54 and the 5th surface 55 have overlapped with the edge part of the liquid crystal panel 40, and do not cover the light emission area | region 40a.

  In realizing this configuration, in this embodiment, the fourth surface 54 includes a rectangular connection portion 54d connected to the second surface 52, and a third surface 53 from the side where the second surface 52 is located (connection portion 54d). A fourth surface side first extending portion 54a extending toward the side where it is positioned, and a fourth surface side second extending portion 54b extending bent at the tip of the fourth surface side first extending portion 54a. And. The fourth surface 54 includes a fourth surface side third extending portion 54c that is bent toward the second surface 52 side at the tip of the fourth surface side second extending portion 54b. The front end portion of the surface side third extending portion 54 c is connected to the connecting portion 54 d with the second surface 52. For this reason, the fourth surface 54 has a rectangular frame shape having an opening 54s, and the counter substrate 40f and the dustproof glass 40h are fitted in the opening 54s. For this reason, the fourth surface 54 surrounds the entire circumference of the light emitting region 40a and is related to the step portions 40s, 40t, 40u, and 40v formed by the counter substrate 40f and the dustproof glass 40h in the liquid crystal panel 40. Match.

  The fifth surface 55 extends from the side where the second surface 52 is located (joint portion 55d) toward the side where the third surface 53 is located, and a rectangular connecting portion 55d which is connected to the third surface 53. The surface side 1st extension part 55a and the 5th surface side 2nd extension part 55b bent and extended in the front-end | tip part of the 5th surface side 1st extension part 55a are provided. Further, the fifth surface 55 includes a fifth surface side third extending portion 55c that is bent toward the third surface 53 side at the tip of the fifth surface side second extending portion 55b. The tip of the surface side third extending portion 55 c is connected to a connecting portion 55 d with the third surface 53. For this reason, the fifth surface 55 has a rectangular frame shape having an opening 55s, and the counter substrate 40f and the dustproof glass 40h are fitted in the opening 55s. For this reason, the fifth surface 55 surrounds the entire circumference of the light emitting region 40a and is related to the step portions 40s, 40t, 40u, and 40v formed by the counter substrate 40f and the dustproof glass 40h in the liquid crystal panel 40. Match.

  Here, the 5th surface side 1st extension part 55a is provided in the opposite side to the side where the 4th surface side 1st extension part 54a extends with respect to the light emission area | region 40a. The first surface 51 includes connection portions 51s and 51u protruding from the end portions other than the first end portion 51e and the second end portion 51f, and the electro-optic module 10 is connected to the connection portions 51s and 51u. Attachment holes 51t and 51v for attachment to the apparatus main body are formed.

  As described above, in the electro-optic module 10 of the present embodiment, the liquid crystal panel 40 is sandwiched between the first surface 51, the fourth surface 54, and the fifth surface 55 of the frame 50, and the second surface 52 and the third surface of the frame 50 are retained. The liquid crystal panel 40 is sandwiched between the surface 53.

(Method for manufacturing electro-optic module 10)
In order to manufacture the electro-optic module 10 of this embodiment, a flat plate 500 shown in FIG. 8A is prepared. The flat plate 500 is preferably preliminarily provided with a crease when it is bent as described below.

  Next, as shown in FIG. 8B, in order to bend the flat plate 500 into the frame 50 surrounding the liquid crystal panel 40, first, the liquid crystal panel 40 is overlaid on the first surface 51. Next, the connecting portion between the first surface 51 and the second surface 52 is bent, and the connecting portion between the second surface 52 and the fourth surface 54 is bent. As a result, as shown in FIG. 8C, the second surface 52 and the fourth surface 54 are in a state of covering the liquid crystal panel 40. In this state, the counter substrate 40f and the dustproof glass 40h are fitted in the opening 54s of the fourth surface 54, and the fourth surface 54 is engaged with the step portions 40s, 40t, 40u, and 40v of the liquid crystal panel 40. .

  Next, the connecting portion between the first surface 51 and the third surface 53 is bent, and the connecting portion between the third surface 53 and the fifth surface 55 is bent. As a result, as shown in FIG. 8D, the third surface 53 and the fifth surface 55 are in a state of covering the liquid crystal panel 40. In this state, the counter substrate 40f and the dustproof glass 40h are fitted in the opening 55s of the fifth surface 55, and the fifth surface 55 engages with the step portions 40s, 40t, 40u, and 40v of the liquid crystal panel 40. .

  As described above, the fourth surface 54 and the fifth surface 55 engage with the step portions 40s, 40t, 40u, and 40v of the liquid crystal panel 40, so that the fourth surface 54 and the fifth surface 55 cover the liquid crystal panel 40. State is maintained. Therefore, the state where the fourth surface 54 and the fifth surface 55 are covered with the liquid crystal panel 40 is maintained without being coupled with a hook or an adhesive. Therefore, the liquid crystal panel 40 is sandwiched between the first surface 51, the fourth surface 54, and the fifth surface 55 of the frame 50 only by performing the steps described with reference to FIGS. Since the liquid crystal panel 40 is sandwiched between the second surface 52 and the third surface 53 of the frame 50, the electro-optic module 10 is completed. Further, if the size of the frame 50 is slightly larger than the size of the liquid crystal panel 40, the frame 50 holds the liquid crystal panel 40 with elasticity, so that no excessive force is applied to the liquid crystal panel 40. Therefore, problems such as lack of the liquid crystal panel 40 do not occur. Further, in the electro-optic module 10, the first surface 51 of the frame 50 can be used as a fixing surface of the polarizing plate or the like described with reference to FIG.

(Main effects of this form)
As described above, in the electro-optic module 10 according to the present embodiment, the frame 50 includes the single flat plate 500 that is bent so as not to overlap the light emitting region 40a of the liquid crystal panel 40, so that the cost of the frame 50 is reduced. can do. Further, the frame 50 has a surface (first surface 51) covering the front portion 41 of the liquid crystal panel 40, surfaces (second surface 52 and third surface 53) covering the side portions of the liquid crystal panel 40, and the liquid crystal panel 40. Since it has the surfaces (the fourth surface 54 and the fifth surface 55) covering the back surface portion, the liquid crystal panel 40 can be surrounded even when the frame 50 is constituted by a single flat plate 500. Further, since the frame 50 is composed of one flat plate 500, heat generated in the liquid crystal panel 40 is smoothly transmitted to the entire frame 50 and is radiated from the entire frame 50. Therefore, the electro-optic module 10 has an advantage of excellent heat dissipation.

  Further, in the frame 50, the first surface 51 is provided with an opening 51a in a region overlapping with the light emitting region 40a, and the fourth surface 54 and the fifth surface 55 do not overlap with the light emitting region 40a in the back surface portion 42. It covers the end. Therefore, in the frame 50, a portion through which light can pass is secured on the first surface 51 side, and a portion through which light can pass is secured also on the side where the fourth surface 54 and the fifth surface 55 are located. The Therefore, the frame 50 according to the present embodiment can cope with a case where a part through which light passes is necessary for both the front part 41 and the rear part 42 as in the transmissive liquid crystal panel 40.

  Further, in the frame 50, the fourth surface 54 and the fifth surface 55 have a rectangular frame shape surrounding the entire circumference of the light emitting region 40a, and therefore the fourth surface 54 and the fifth surface 55 in the frame 50. The back surface portion 42 of the liquid crystal panel 40 can be covered widely while ensuring a portion through which light passes on the side where is located. Therefore, the liquid crystal panel 40 is reliably reinforced by the frame 50.

  Furthermore, the liquid crystal panel 40 has step portions 40 s, 40 t, 40 u, and 40 v with which the inner sides of the corner portions generated by the bending of the fourth surface 54 and the fifth surface 55 of the frame 50 are engaged. Therefore, the fourth surface 54 and the fifth surface 55 are engaged with the step portions 40 s, 40 t, 40 u, and 40 v of the liquid crystal panel 40 only by covering the fourth surface 54 and the fifth surface 55 with the back surface portion 42 of the liquid crystal panel 40. Therefore, the state in which the fourth surface 54 and the fifth surface 55 are covered with the back surface portion 42 of the liquid crystal panel 40 can be maintained. Therefore, when assembling the electro-optic module 10, it is not necessary to use a member, an adhesive, or the like for maintaining the state where the fourth surface 54 and the fifth surface 55 are covered with the back surface portion 42 of the liquid crystal panel 40. Further, even after the electro-optic module 10 is assembled, a member, an adhesive, or the like for maintaining the state where the fourth surface 54 and the fifth surface 55 are covered with the back surface portion 42 of the liquid crystal panel 40 may not be used. Further, even when a member, an adhesive, or the like is used to maintain the state where the fourth surface 54 and the fifth surface 55 are covered with the back surface portion 42 of the liquid crystal panel 40 after the electro-optic module 10 is assembled, the configuration is simple. There is an advantage that it can be done.

  Further, the frame 50 does not cover the third side surface portion 48 and the fourth side surface portion 49 of the liquid crystal panel 40, and the third side surface portion 48 and the fourth side surface portion 49 of the liquid crystal panel 40 are exposed from the frame 50. Is in a state of being. Even in such a structure, in the present embodiment, the fourth surface 54 and the fifth surface 55 are engaged with the step portions 40s, 40t, 40u, and 40v of the liquid crystal panel 40 in four directions, so that the liquid crystal is removed from the frame 50. The panel 40 does not fall off. In addition, since the third side surface portion 48 and the fourth side surface portion 49 of the liquid crystal panel 40 are exposed from the frame 50, the cooling of the liquid crystal panel 40 is efficiently performed when cooling air is supplied toward the electro-optic module 10. be able to.

[Embodiment 2]
FIG. 9 is an explanatory diagram of the frame 50 used in the electro-optic module 10 according to Embodiment 2 of the present invention. FIG. 9A shows a state in which the frame 50 is expanded, and FIG. Steps (b) to (d) show the steps of configuring the electro-optic module 10 using the frame 50. In FIG. 9, the portion corresponding to the liquid crystal panel 40 is shown in gray. In addition, 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. Further, since the present embodiment is only partially different from the first embodiment in the configuration of the frame 50, the liquid crystal panel 40 will be described with reference to FIGS.

  As shown in FIGS. 5, 6, and 9, the electro-optic module 10 according to the present embodiment also includes a transmissive liquid crystal panel 40 as a modulation electro-optic panel and the surroundings of the liquid crystal panel 40, as in the first embodiment. And a frame 50 surrounding the frame. The frame 50 is composed of a single flat plate 500 bent so as not to overlap the light emitting region 40a. In this embodiment, a metal plate such as aluminum or SUS is used as the flat plate 500. Similarly to the first embodiment, the frame 50 includes a first surface 51, a second surface 52, a third surface 53, a fourth surface 54, and a fifth surface 55 in which an opening 51a is formed.

  Here, the fourth surface 54 and the fifth surface 55 overlap the protruding region from the counter substrate 40 f in the element substrate 40 e in the back surface portion 42 of the liquid crystal panel 40, and the fourth surface 54 and the fifth surface 55. Covers the end of the liquid crystal panel 40 and does not cover the light emitting region 40a.

  More specifically, the fourth surface 54 is directed from a rectangular connecting portion 54d connected to the second surface 52 to a side where the third surface 53 is positioned from the side where the second surface 52 is positioned (the connecting portion 54d). A fourth surface side first extending portion 54a extending in a bent manner, a fourth surface side second extending portion 54b extending in a bent manner at the tip of the fourth surface side first extending portion 54a, and a fourth surface. And a fourth surface side third extending portion 54c that is bent toward the second surface 52 side at the tip of the side second extending portion 54b. Accordingly, the fourth surface 54 has an opening 55s surrounded by the fourth surface side first extending portion 54a, the fourth surface side second extending portion 54b, and the fourth surface side third extending portion 54c. is doing. The fifth surface 55 extends from the side where the second surface 52 is located (the connecting portion 55d) to the side where the third surface 53 is located, and the rectangular connecting portion 55d which is connected to the third surface 53. 5th surface side 1st extension part 55a, 5th surface side 2nd extension part 55b bent and extended in the front-end | tip part of 5th surface side 1st extension part 55a, 5th surface side 2nd extension And a fifth surface side third extending portion 55c that is bent toward the third surface 53 side at the tip of the existing portion 55b. Therefore, the fifth surface 55 has an opening 55s surrounded by the fifth surface side first extending portion 55a, the fifth surface side second extending portion 55b, and the fifth surface side third extending portion 55c. is doing. Here, the 5th surface side 1st extension part 55a is provided in the opposite side to the side where the 4th surface side 1st extension part 54a extends with respect to the light emission area | region 40a.

  In the present embodiment, unlike the first embodiment, the tip end portion of the fourth surface side third extending portion 54c is not connected to the connecting portion 54d with the second surface 52, and the fourth surface side third extending portion is not connected. There is a break between the portion 54c and the connecting portion 54d. The tip of the fifth surface side third extending portion 55c is not connected to the connecting portion 55d with the third surface 53, and the space between the fifth surface side third extending portion 55c and the connecting portion 55d is not connected. It is interrupted.

  In order to manufacture the electro-optic module 10 using the frame 50 having such a configuration, a flat plate 500 shown in FIG. 9A is prepared. The flat plate 500 is preferably preliminarily provided with a crease when it is bent as described below.

  Next, as shown in FIG. 9B, the liquid crystal panel 40 is overlaid on the first surface 51. Next, the connecting portion between the first surface 51 and the second surface 52 is bent, and the connecting portion between the second surface 52 and the fourth surface 54 is bent. As a result, as shown in FIG. 9C, the second surface 52 and the fourth surface 54 are in a state of covering the liquid crystal panel 40. In this state, the counter substrate 40f and the dustproof glass 40h are fitted in the opening 54s of the fourth surface 54, and the fourth surface 54 is engaged with the step portions 40s, 40t, 40u, and 40v of the liquid crystal panel 40. .

  Next, the connecting portion between the first surface 51 and the third surface 53 is bent, and the connecting portion between the third surface 53 and the fifth surface 55 is bent. As a result, as shown in FIG. 9D, the third surface 53 and the fifth surface 55 are in a state of covering the liquid crystal panel 40. In this state, the counter substrate 40f and the dustproof glass 40h are fitted in the opening 55s of the fifth surface 55, and the fifth surface 55 engages with the step portions 40s, 40t, 40u, and 40v of the liquid crystal panel 40. .

  Thus, the fourth surface 54 and the fifth surface 55 are engaged with the step portions 40s, 40t, 40u, and 40v of the liquid crystal panel 40, so that the state of covering the liquid crystal panel 40 is maintained. Therefore, the state where the fourth surface 54 and the fifth surface 55 are covered with the liquid crystal panel 40 is maintained without being coupled with a hook or an adhesive. Therefore, the electro-optic module 10 is completed only by performing the steps described with reference to FIGS.

  As described above, in this embodiment as well, as in the first embodiment, the frame 50 includes the single flat plate 500 that is bent so as not to overlap the light emitting region 40a of the liquid crystal panel 40, thereby reducing the cost of the frame 50. can do. Further, the frame 50 has a surface (first surface 51) covering the front portion 41 of the liquid crystal panel 40, surfaces (second surface 52 and third surface 53) covering the side portions of the liquid crystal panel 40, and the liquid crystal panel 40. Since it has surfaces (fourth surface 54 and fifth surface 55) covering the back surface portion, even when the frame 50 is constituted by one flat plate 500, the liquid crystal panel 40 can be surrounded, etc. There are substantially the same effects as those of the first embodiment.

  The fifth surface side first extending portion 55a is provided on the side opposite to the side on which the fourth surface side first extending portion 54a extends with respect to the light emitting region 40a. For this reason, even when the space between the fourth surface side third extending portion 54c and the connecting portion 54d is interrupted and the space between the fifth surface side third extending portion 55c and the connecting portion 55d is interrupted, the fourth surface. 54 and the fifth surface 55 cover a wide area with respect to the back surface portion 42 of the liquid crystal panel 40. Therefore, the frame 50 reliably reinforces the liquid crystal panel 40.

[Embodiment 3]
FIG. 10 is an explanatory diagram of the frame 50 used in the electro-optic module 10 according to Embodiment 3 of the present invention. FIG. 10 (a) shows a state in which the frame 50 is expanded, and FIG. Steps (b) to (d) show the steps of configuring the electro-optic module 10 using the frame 50. In FIG. 10, a portion corresponding to the liquid crystal panel 40 is represented in gray. In addition, since the basic configuration of this embodiment is the same as that of Embodiments 1 and 2, common portions are denoted by the same reference numerals and description thereof is omitted. Further, since the present embodiment is only partially different from the first embodiment in the configuration of the frame 50, the liquid crystal panel 40 will be described with reference to FIGS.

  As shown in FIGS. 5, 6, and 10, the electro-optic module 10 of the present embodiment is similar to the first embodiment in that a transmissive liquid crystal panel 40 as a modulation electro-optic panel and the surroundings of the liquid crystal panel 40 are used. And a frame 50 surrounding the frame. The frame 50 is composed of a single flat plate 500 bent so as not to overlap the light emitting region 40a. In this embodiment, a metal plate such as aluminum or SUS is used as the flat plate 500. Similarly to the first embodiment, the frame 50 includes a first surface 51, a second surface 52, a third surface 53, a fourth surface 54, and a fifth surface 55 in which an opening 51a is formed.

  Here, the fourth surface 54 and the fifth surface 55 overlap the protruding region from the counter substrate 40 f in the element substrate 40 e in the back surface portion 42 of the liquid crystal panel 40, and the fourth surface 54 and the fifth surface 55. Covers the end of the liquid crystal panel 40 and does not cover the light emitting region 40a.

  More specifically, the fourth surface 54 is directed from a rectangular connecting portion 54d connected to the second surface 52 to a side where the third surface 53 is positioned from the side where the second surface 52 is positioned (the connecting portion 54d). And a fourth surface side first extending portion 54a and a fourth surface side second extending portion 54b that bends and extends at the tip of the fourth surface side first extending portion 54a. . Accordingly, the fourth surface 54 has an opening 55s defined by the fourth surface side first extending portion 54a and the fourth surface side second extending portion 54b. The fifth surface 55 extends from the side where the second surface 52 is located (the connecting portion 55d) to the side where the third surface 53 is located, and the rectangular connecting portion 55d which is connected to the third surface 53. 5th surface side 1st extension part 55a, 5th surface side 2nd extension part 55b bent and extended in the front-end | tip part of 5th surface side 1st extension part 55a, 5th surface side 2nd extension And a fifth surface side third extending portion 55c that is bent toward the third surface 53 side at the tip of the existing portion 55b. Accordingly, the fifth surface 55 has an opening 55s defined by the fifth surface side first extending portion 55a and the fifth surface side second extending portion 55b.

  Thus, in the present embodiment, unlike the first embodiment, the frame 50 is provided with the fourth surface side third extending portion 54c and the fifth surface side third extending portion 55c shown in FIG. Not. In addition, the 5th surface side 1st extension part 55a is on the opposite side to the side where the 4th surface side 1st extension part 54a extends with respect to the light emission area | region 40a similarly to Embodiment 1,2. Is provided.

  In order to manufacture the electro-optic module 10 using the frame 50 having such a configuration, a flat plate 500 shown in FIG. 10A is prepared. The flat plate 500 is preferably preliminarily provided with a crease when it is bent as described below.

  Next, as shown in FIG. 10B, the liquid crystal panel 40 is overlaid on the first surface 51. Next, the connecting portion between the first surface 51 and the second surface 52 is bent, and the connecting portion between the second surface 52 and the fourth surface 54 is bent. As a result, as shown in FIG. 10C, the second surface 52 and the fourth surface 54 are in a state of covering the liquid crystal panel 40. In this state, the counter substrate 40f and the dust-proof glass 40h are fitted in the opening 54s of the fourth surface 54, and the fourth surface 54 is engaged with the three step portions 40s, 40t, and 40v of the liquid crystal panel 40. .

  Next, the connecting portion between the first surface 51 and the third surface 53 is bent, and the connecting portion between the third surface 53 and the fifth surface 55 is bent. As a result, as shown in FIG. 10D, the third surface 53 and the fifth surface 55 are in a state of covering the liquid crystal panel 40. In this state, the counter substrate 40f and the dust-proof glass 40h are fitted in the opening 55s of the fifth surface 55, and the fifth surface 55 is engaged with the three step portions 40s, 40t, and 40v of the liquid crystal panel 40. .

  Thus, the fourth surface 54 and the fifth surface 55 are engaged with the step portions 40s, 40t, 40u, and 40v of the liquid crystal panel 40, so that the state of covering the liquid crystal panel 40 is maintained. Therefore, the state where the fourth surface 54 and the fifth surface 55 are covered with the liquid crystal panel 40 is maintained without being coupled with a hook or an adhesive. Therefore, the electro-optic module 10 is completed only by performing the steps described with reference to FIGS.

  Thus, in this embodiment as well, as in Embodiments 1 and 2, the frame 50 is composed of a single flat plate 500 that is bent so as not to overlap the light emitting area 40a of the liquid crystal panel 40. Can be reduced. Further, the frame 50 has a surface (first surface 51) covering the front portion 41 of the liquid crystal panel 40, surfaces (second surface 52 and third surface 53) covering the side portions of the liquid crystal panel 40, and the liquid crystal panel 40. Since it has surfaces (fourth surface 54 and fifth surface 55) covering the back surface portion, even when the frame 50 is constituted by one flat plate 500, the liquid crystal panel 40 can be surrounded, etc. There are substantially the same effects as those of the first embodiment.

  The fifth surface side first extending portion 55a is provided on the side opposite to the side on which the fourth surface side first extending portion 54a extends with respect to the light emitting region 40a. For this reason, even when the gap between the fourth surface side second extending portion 54b and the connecting portion 54d is interrupted and the gap between the fifth surface side second extending portion 55b and the connecting portion 55d is interrupted, the fourth surface. 54 and the fifth surface 55 cover a wide area with respect to the back surface portion 42 of the liquid crystal panel 40. Therefore, the frame 50 reliably reinforces the liquid crystal panel 40.

[Embodiment 4]
FIG. 11 is an explanatory diagram of the frame 50 used in the electro-optic module 10 according to Embodiment 4 of the present invention. FIG. 11A shows a state in which the frame 50 is expanded, and FIG. Steps (b) to (d) show the steps of configuring the electro-optic module 10 using the frame 50. In FIG. 11, a portion corresponding to the liquid crystal panel 40 is represented in gray. In addition, since the basic configuration of this embodiment is the same as that of Embodiments 1 and 2, common portions are denoted by the same reference numerals and description thereof is omitted. Further, since the present embodiment is only partially different from the first embodiment in the configuration of the frame 50, the liquid crystal panel 40 will be described with reference to FIGS.

  As shown in FIGS. 5, 6, and 11, the electro-optical module 10 according to the present embodiment is similar to the first embodiment in that a transmissive liquid crystal panel 40 as a modulation electro-optical panel and the surroundings of the liquid crystal panel 40 are used. And a frame 50 surrounding the frame. The frame 50 is composed of a single flat plate 500 bent so as not to overlap the light emitting region 40a. In this embodiment, a metal plate such as aluminum or SUS is used as the flat plate 500. Similarly to the first embodiment, the frame 50 includes a first surface 51, a second surface 52, a third surface 53, a fourth surface 54, and a fifth surface 55 in which an opening 51a is formed.

  Here, the fourth surface 54 and the fifth surface 55 overlap the protruding region from the counter substrate 40 f in the element substrate 40 e in the back surface portion 42 of the liquid crystal panel 40, and the fourth surface 54 and the fifth surface 55. Covers the end of the liquid crystal panel 40 and does not cover the light emitting region 40a.

  More specifically, the fourth surface 54 and the fifth surface 55 are formed in a rectangular frame shape having openings 54s and 55s, as in the first embodiment, and in the openings 54s and 55s, The counter substrate 40f and the dustproof glass 40h are in a fitted state. For this reason, the fourth surface 54 and the fifth surface 55 surround the entire circumference of the light emitting region 40a, and step portions 40s, 40t formed by the counter substrate 40f and the dust-proof glass 40h in the liquid crystal panel 40. 40u and 40t are engaged.

  Here, the dimension of the first surface 51 in the direction in which the first end 51 e and the second end 51 f face each other is considerably larger than that of the liquid crystal panel 40. The width dimension of the second surface 52 and the third surface 53 is considerably larger than the sum of the thickness dimensions of the element substrate 40e and the dust-proof glass 40g in the liquid crystal panel 40.

  In order to manufacture the electro-optic module 10 using the frame 50 having such a configuration, a flat plate 500 shown in FIG. 11A is prepared. The flat plate 500 is preferably preliminarily provided with a crease when it is bent as described below.

  Next, as shown in FIG. 11B, the liquid crystal panel 40 is overlaid on the first surface 51. Next, the connecting portion between the first surface 51 and the second surface 52 is bent, and the connecting portion between the second surface 52 and the fourth surface 54 is bent. As a result, as shown in FIG. 11C, the second surface 52 and the fourth surface 54 are in a state of covering the liquid crystal panel 40. In this state, the counter substrate 40f and the dustproof glass 40h are fitted into the opening 54s of the fourth surface 54, and the fourth surface 54 is engaged with the three step portions 40s, 40t, 40u, and 40v of the liquid crystal panel 40. Match.

  Next, the connecting portion between the first surface 51 and the third surface 53 is bent, and the connecting portion between the third surface 53 and the fifth surface 55 is bent. As a result, as shown in FIG. 11 (d), the third surface 53 and the fifth surface 55 are covered with the liquid crystal panel 40. In this state, the counter substrate 40f and the dustproof glass 40h are fitted in the opening 55s of the fifth surface 55, and the fifth surface 55 is engaged with the three step portions 40s, 40t, 40u, and 40v of the liquid crystal panel 40. Match.

  Thus, the fourth surface 54 and the fifth surface 55 are engaged with the step portions 40s, 40t, 40u, and 40v of the liquid crystal panel 40, so that the state of covering the liquid crystal panel 40 is maintained. Therefore, the state where the fourth surface 54 and the fifth surface 55 are covered with the liquid crystal panel 40 is maintained without being coupled with a hook or an adhesive. Therefore, the electro-optic module 10 is completed only by performing the steps described with reference to FIGS. Therefore, even when the frame 50 is constituted by a single flat plate 500, the liquid crystal panel 40 can be surrounded, and the same effects as in the first embodiment can be obtained.

  In the present embodiment, the first surface 51 of the frame 50 has a dimension in the direction in which the first end portion 51 e and the second end portion 51 f face each other is considerably larger than the liquid crystal panel 40, and the second surface 52 and the third surface 53 The width dimension is considerably larger than the sum of the thickness dimensions of the element substrate 40e and the dustproof glass 40g in the liquid crystal panel 40. For this reason, in the electro-optic module 10 of the present embodiment, the second surface 52 and the third surface 53 are inclined surfaces. Accordingly, the second side surface 52 and the liquid crystal panel 40 and the third surface 53 and the liquid crystal panel 40 are penetrated in the direction in which the third side surface portion 48 and the fourth side surface portion 49 of the liquid crystal panel 40 are located. A passage is formed. Therefore, according to the present embodiment, in addition to the effects described with reference to the first embodiment, the cooling air that has flowed into the frame 50 from the third side surface portion 48 side of the liquid crystal panel 40 flows into the frame 50. Since the liquid flows out from the side where the fourth side surface portion 49 of the liquid crystal panel 40 is located, there is an advantage that the cooling efficiency is high.

  Further, since the size of the frame 50 is sufficiently larger than the size of the liquid crystal panel 40, the frame 50 holds the liquid crystal panel 40 with elasticity. Therefore, since excessive force is not applied to the liquid crystal panel 40, problems such as chipping of the liquid crystal panel 40 do not occur.

[Another embodiment of the electro-optic module]
In the above embodiment, the first surface 51 covers the front portion 41 of the liquid crystal panel 40, but the first surface 51 may be configured to cover the back surface portion 42 of the liquid crystal panel 40. In this case, the fourth surface 54 and the fifth surface 55 cover the back surface portion 42 of the liquid crystal panel 40.

  In the above embodiment, the liquid crystal panel 40 alone is provided inside the frame 50, but the electro-optic module 10 may be configured by providing the liquid crystal panel 40 with a polarizing plate or the like attached inside the frame 50.

  In the above embodiment, the electro-optic module 10 including the transmissive liquid crystal panel 40 and the frame 50 has been exemplified. However, the reflective liquid crystal panel 40 used in a projection display device described later with reference to FIG. The present invention may be applied to the electro-optic module 10 including the frame 50. In the electro-optic module 10 including the reflective liquid crystal panel 40, light incident from the counter substrate 40f side is reflected on the element substrate 40e side and emitted from the counter substrate 40f side. Therefore, the side where the counter substrate 40f is located is the front part 41, and the side where the element substrate 40e is located is the back part 42.

  In the above embodiment, the state in which the frame 50 is covered with the liquid crystal panel 40 is maintained only by the engagement between the fourth surface 54 and the fifth surface 55 and the step portions 40s, 40t, 40u, and 40v of the liquid crystal panel 40. However, the state where the frame 50 is covered with the liquid crystal panel 40 by using the bonding between the fourth surface 54 and the fifth surface 55, the connection between the fourth surface 54 and the fifth surface 55 via the hook, the fastening band, or the like. May be maintained.

  Moreover, 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 which projects from the opposite side to the direction which observes a projected image You may apply this invention to the projection type display apparatus used for a display apparatus.

  Further, in the above embodiment, a liquid crystal panel is used as the electro-optical panel. However, the present invention may be applied to an electro-optical module using a light modulation panel using a micromirror.

[Another projection display device]
FIG. 12 is an explanatory diagram of another projection type display device to which the present invention is applied. In the projection type display device of this embodiment, an electro-optical module including a reflective liquid crystal panel is used. More specifically, in the projection display apparatus 1000 shown in FIG. 12, the light source unit 890 includes a polarization illumination apparatus 800 in which the light source 810, the integrator lens 820, and the polarization conversion element 830 are arranged along the system optical axis L. is doing. The light source unit 890 also reflects the S-polarized light beam emitted from the polarization illumination device 800 along the system optical axis L by the S-polarized light beam reflecting surface 841 and the S-polarized light beam of the polarized beam splitter 840. Of the light reflected from the reflecting surface 841, the dichroic mirror 842 that separates the blue light (B) component and the red light (R) component of the luminous flux after the blue light is separated are separated. And a dichroic mirror 843.

  The projection display apparatus 1000 includes three reflective liquid crystal panels 40 (R), 40 (G), and 40 (B) on which each color light is incident. The light source unit 890 includes three reflective liquid crystal panels. A predetermined color light is supplied to the liquid crystal panels 40 (R), 40 (G), and 40 (B).

  In the projection display apparatus 1000, after the light modulated by the three liquid crystal panels 40 (R), 40 (G), and 40 (B) is synthesized by the dichroic mirrors 842 and 843 and the polarization beam splitter 840. The combined light is projected onto a projection member such as a screen 860 by the projection optical system 850.

  Here, each of the three liquid crystal panels 40 (R), 40 (G), and 40 (B) is held by the electro-optic module 10 (R) that is held by the frame 50 that is substantially the same as the configuration described in the above embodiment. 10 (G) and 10 (B) are mounted on the projection display device 1000.

[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. In this case, an organic electroluminescence display panel or a plasma display panel may be used as the electro-optical panel used in the electro-optical module.

1 .... Projection type display device, 1000 ... Projection type display device, 10 ... Electro-optic module, 40 ... Liquid crystal panel, 40a ... Light emission area, 40e ... Element substrate, 40f ... Counter substrate, 40g, 40h..Dust-proof glass, 40s, 40t, 40u, 40v..Step portion, 41..Front portion, 42..Back portion, 46..First side portion, 47..Second side portion, 48..No. 3 side face part, 49 ... fourth side part, 50 ... frame, 51 ... first face, 51a ... opening, 51e ... first end part, 51f ... second end part, 52 ... first part 2nd surface, 53 ... third surface, 54 ... fourth surface, 54a ... fourth surface side first extending portion, 54b ... fourth surface side second extending portion, 54c ... fourth surface side 3rd extension part, 55 ... 5th surface, 55a ... 5th surface side 1st extension part, 55b ... 5th surface side 2nd extension part, 55c ... 5th surface side 3 extending portion

Claims (11)

An electro-optic panel comprising a front part having a light emitting region from which modulated light is emitted, a rear part facing the front part, and a plurality of side parts located between the rear part and the front part; ,
A frame surrounding the electro-optical panel;
The frame is formed of a single flat plate bent so as not to overlap the light emitting area, and covers a first surface that covers one of the front portion and the rear portion, and a first end of the first surface. A second surface that is bent at a portion and covers a first side surface portion of the plurality of side surface portions, and a second end portion that is opposed to the first end portion on the first surface, and Among these, the front surface and the back surface are bent at the third surface covering the second side surface portion facing the first side surface portion and the end portion on the opposite side of the second surface to the side connected to the first end portion. A fourth surface that covers the other surface of the portion, and a fifth surface that covers the other surface by being bent at an end of the third surface opposite to the side connected to the second end portion. An electro-optic module. The first surface is provided with an opening in a region overlapping the light emitting region,
2. The electro-optic module according to claim 1, wherein the fourth surface and the fifth surface cover an end portion of the other surface and do not cover the light emitting region. The fourth surface includes a fourth surface side first extending portion extending from a side on which the second surface is positioned toward a side on which the third surface is positioned, and the fourth surface side first extending portion. A fourth surface side second extending portion that is bent and extends at the tip portion of
The fifth surface includes a fifth surface side first extending portion extending from a side on which the third surface is positioned toward a side on which the second surface is positioned, and the fifth surface side first extending portion. The electro-optic module according to claim 2, further comprising a second surface side second extending portion that is bent and extends at a tip portion of the electrooptic module. The fourth surface includes a fourth surface side third extending portion that is bent toward the second surface side at a tip portion of the fourth surface side second extending portion,
The fifth surface includes a fifth surface side third extending portion that is bent toward the third surface side at a tip portion of the fifth surface side second extending portion. 4. The electro-optic module according to 3.   The 5th surface side 1st extension part is provided in the opposite side to the side where the 4th surface side 1st extension part extends to the above-mentioned light emission field. 5. The electro-optic module according to 3 or 4. The fourth surface has a rectangular frame shape that surrounds the entire circumference of the light emitting region,
6. The electro-optic module according to claim 2, wherein the fifth surface has a rectangular frame shape surrounding the light emission region around the entire circumference. 7.   The said other surface has a step part with which the inner side of the corner | angular part produced | generated by the bending of the said 4th surface and the said 5th surface engages. The electro-optic module according to 1. The flat plate has flexibility,
The electro-optic module according to claim 1, wherein the frame holds the electro-optic panel with elasticity.   The gap between the electro-optical panel and the second surface and between the electro-optical panel and the third surface is open. The electro-optic module described.   An electronic apparatus comprising the electro-optic module according to claim 1. 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;
The electronic apparatus according to claim 10, further comprising: