JP4591069B2 - Mounting case for electro-optical device and manufacturing method thereof, electro-optical device, and electronic apparatus - Google Patents

Description

  The present invention relates to a mounting case for mounting an electro-optical panel such as a liquid crystal panel, a method for manufacturing the same, an electro-optical device such as a liquid crystal device including such an electro-optical panel, The present invention relates to a technical field of an electronic apparatus such as a liquid crystal projector in which the electro-optical device is applied as a light valve, for example.

  When this type of electro-optical panel is used as a light valve in an electronic device such as a liquid crystal projector, it is not installed in a so-called naked state in the housing, casing or frame of the device. It is installed after being mounted or accommodated. The electro-optical panel is accommodated in the mounting case in the first place. The mounting case is provided with an appropriate screw hole or the like, so that the electro-optical panel is fixed to, attached to, or optically attached to the housing. This is because it is easy to make a decision.

  In the present application, the entire configuration in which a single electro-optical panel that performs an electro-optical operation is accommodated in a mounting case, or the entire configuration in which an electro-optical panel to which a flexible wiring board or the like is connected is accommodated in a mounting case is referred to as “electrical”. It is referred to as an “optical device”.

  In an electronic device such as a projector, the projection light on the electro-optical panel is very strong, and a cooling mechanism is provided in the mounting case as described in Patent Documents 1 to 3 in order to prevent deterioration of the electro-optical panel due to high temperature. There are many cases to prepare. Specifically, fins, inclined portions, or tapered portions are provided on the surface of the mounting case. The inclined portion or the tapered portion acts to reduce the resistance of the mounting case against the flow of cooling air supplied into the electronic device by the fan, and actively guides the cooling air to the surface of the mounting case.

  As described above, the mounting case not only simply accommodates the electro-optical panel but also includes the cooling mechanism as described above, and thus has a relatively complicated shape. Therefore, the mounting case is usually manufactured by die casting. Die casting generally refers to a technique and a product in which an alloy such as aluminum, magnesium or zinc is melted and injected into a mold at a high speed and high pressure. Die casting is advantageous in that high dimensional accuracy can be obtained and a product having a complicated shape can be produced.

JP 2004-198933 A JP 2003-5104 A JP 2002-107698 A

  However, die casting has a problem that it is difficult to maintain the manufacturing quality of the mounting case due to the occurrence of burrs and melting damage.

  The present invention has been made in view of the above-mentioned problems, for example, and has a mounting quality for an electro-optical device that can be manufactured at low cost with stable manufacturing quality, a manufacturing method thereof, an electro-optical device including the mounting case, and the It is an object to provide an electronic device including an electro-optical device.

  In order to solve the above problems, a first mounting case for an electro-optical device according to the present invention is used in an electro-optical device that displays a display image, and has an image display area that displays the display image. A mounting case for an electro-optical device for housing a plate, wherein a plate material is formed by press working, and is continuous with a bottom portion facing a peripheral region located in the periphery of the image display region in the electro-optical panel. A body portion configured to be able to accommodate the electro-optic panel including a side portion surrounding a side edge of the electro-optic panel, and molded by the press so that the side portion is partially uneven. And a claw portion on which a hook of a cover member that covers a surface opposite to the surface facing the bottom portion of the electro-optical panel housed in the main body portion is hooked.

  According to the first mounting case for an electro-optical device of the present invention (hereinafter abbreviated as “mounting case” as appropriate), the plate material is formed by pressing. For this reason, it is possible to eliminate the deterioration of production quality due to burrs and melt damage, which has been a problem during die casting. In addition, by converting the manufacturing technology from die casting to press working, mass production becomes easier and the life of the mold can be extended, and the manufacturing unit price can be kept low.

  However, if it is manufactured by die casting, the mounting case can be made in a relatively complicated shape. On the other hand, in the first mounting case of the present invention, the main body portion in which the electro-optical panel is accommodated and the claw portion to which the hook of the cover member is hooked are formed from a plate material such as an aluminum plate. The claw part is a part that is formed by processing a part corresponding to the side part of the plate material so as to have unevenness in the process of pressing, and has a shape to be hooked, and in parallel with the processing of the main body part Or it is shape | molded before and after. The “pressing” in the present invention refers not only to the molding process of the main body, but also to the entire process by pressing for manufacturing the mounting case. In addition, “press processing” for the nail part means that the entire nail part or a part of the nail part is obtained as a result of processing the other part of the plate material, in addition to the case where the part that becomes the nail part of the plate material is actively processed. The case where it is done is also included. Further, the “plate material” referred to here may be a plurality of plate materials combined with each other, but from the viewpoint of quality and manufacturing efficiency, it is desirable that the entire mounting case is formed from a single plate material. . The mounting case may be composed entirely of a single plate material, or may be configured by attaching parts made of other members to the plate material before or after the press working.

  When components for performing various functions are added to the main body, the structure becomes complicated, and it is generally difficult to faithfully form such a structure by press working. However, in the case of the present invention, it suffices to make a part of the plate material corresponding to the side part of the main body part, and it can be realized relatively easily.

  In addition, components other than a main-body part and a nail | claw part may be added to this 1st mounting case. Other components are preferably molded by pressing for manufacturing efficiency, but when the structure is complex, etc., they are molded by other methods such as die casting, and then joined or engaged with the main body etc. May be.

  As described above, the first mounting case of the present invention has a configuration in which the cover member can be attached relatively easily by providing the claw portion, and despite such a somewhat complicated configuration. It can be realized by pressing. In other words, since this mounting case is manufactured by pressing at least the main body and the claw, there is little or no quality degradation due to burrs or melting caused by die casting, stable manufacturing quality and low cost. It can be manufactured.

  In one aspect of the first mounting case of the present invention, the claw portion is formed by cutting and raising processing in the press processing.

  According to this aspect, the nail | claw part is formed by raising the predetermined site | part of the side part of a main-body part as a part of press work. Since the edge of the nail | claw part cut and raised produces a clear level | step difference between side parts, a hook can be hooked reliably.

  In another aspect of the first mounting case of the present invention, a protrusion formed by the pressing so as to protrude from a portion of the side portion contacting the outer edge of the hook as seen from the outer surface side of the side portion. A guide portion for guiding the hook is formed by at least a part of the portion.

  According to this aspect, the guide portion that guides the hook to the claw portion is formed at a portion of the side portion of the main body portion where the outer edge of the hook abuts when hooked on the claw portion. Specifically, the guide part is formed of an outwardly convex convex part or a part thereof formed on both sides of the claw part, and the step of the convex part with respect to the side part functions as a groove for guiding the hook. Therefore, in the mounting case in this case, when the cover member is attached to the frame, the hook is guided by the guide portion and can be reliably hooked to the claw portion.

  In another aspect of the first mounting case of the present invention, at least one of the concave portions formed inside the side portion by molding the convex portion is an adhesive that retains an adhesive that adheres and fixes the electro-optic panel. Used as a pool.

  According to this aspect, when a convex portion that is convex outward is formed by pressing in a predetermined portion of the side portion of the main body portion, a concave portion corresponding to the convex portion is generated on the back surface. This recess is used for the adhesive reservoir. The adhesive reservoir is provided to retain the adhesive when the liquid crystal panel is adhesively fixed in the frame, and thus the liquid crystal panel can be securely and easily fixed. Further, since the adhesive reservoir is formed integrally with the guide part, it also contributes to the simplification of the manufacturing process.

  In another aspect of the first mounting case of the present invention, at least the main body portion and the claw portion are formed of a single plate material as the plate material.

  According to this aspect, the part comprised including at least a main-body part and a nail | claw part among mounting cases is shape | molded from the board | plate material of the press process. This eliminates the need for joining a plurality of plate members, and enables efficient production.

  In order to solve the above-described problem, the second mounting case of the present invention is used in an electro-optical device that displays a display image, and accommodates an electro-optical panel having an image display area on which the display image is displayed. A mounting case for an electro-optical device, wherein a plate material is formed by press working, and is continuous with a bottom portion facing a peripheral region located in the periphery of the image display region in the electro-optical panel, and the bottom portion A body portion including a side portion surrounding a side edge of the electro-optic panel, and the press working so that the side portion is partially recessed when viewed from the inside of the side portion. And an adhesive reservoir that retains an adhesive that adheres and fixes the electro-optical panel.

  According to the second mounting case of the present invention, as in the first mounting case, since the plate material is formed by pressing, it is possible to eliminate the deterioration in manufacturing quality, which is a problem with die casting, and to achieve mass production and gold It is possible to keep the manufacturing unit cost low by extending the life of the mold.

  The second mounting case includes an adhesive reservoir. The adhesive reservoir is a part where the part corresponding to the side part of the main body part is partially formed by press working, and the adhesive is retained when the liquid crystal panel is adhesively fixed in the frame, like the above-mentioned claw part. is there. Therefore, in the second mounting case of the present invention, the liquid crystal panel can be securely and easily fixed.

  As described above, the second mounting case of the present invention has a configuration in which the liquid crystal panel can be securely and easily fixed by providing the adhesive reservoir, and such a somewhat complicated configuration. Nevertheless, it can be realized by pressing. In other words, since this mounting case is manufactured by pressing at least the main body and the adhesive reservoir, there is little or no deterioration in quality due to burrs and melting damage that occur during die casting, stable manufacturing quality, and low cost. Can be manufactured.

  In order to solve the above-described problem, the third mounting case of the present invention is used in an electro-optical device that displays a display image, and accommodates an electro-optical panel having an image display area on which the display image is displayed. A mounting case for an electro-optical device, wherein a plate material is formed by press working, and is continuous with a bottom portion facing a peripheral region located in the periphery of the image display region in the electro-optical panel. A main body configured to be able to accommodate the electro-optical panel including a side part surrounding a side edge of the electro-optical panel, and the bottom part and at least a part of the side part are drawn in the press work Thus, it is formed as a continuous curved surface in one plate material as the plate material.

  According to the third mounting case of the present invention, as in the first mounting case, since the plate material is formed by pressing, it is possible to eliminate the deterioration in manufacturing quality, which is a problem in die casting, and to achieve mass production and gold It is possible to keep the manufacturing unit cost low by extending the life of the mold.

  In the third mounting case, the bottom part and at least a part of the side part of the main body part are formed in a completely seamless state by drawing. Therefore, it is possible to prevent light from the outside from leaking into the main body and affecting display quality. Therefore, the third mounting case of the present invention can maintain a good display quality while being manufactured at a low cost and with a stable manufacturing quality by forming at least the main body portion by press working.

  In order to solve the above problems, an electro-optical device according to the present invention includes a mounting case for an electro-optical device according to the present invention (including various aspects thereof), the electro-optical panel housed in the main body, The cover member having the hook hooked on the claw portion in a state where the electro-optical panel is accommodated in the mounting case for the electro-optical device.

  According to the electro-optical device of the present invention, the electro-optical panel is accommodated in the mounting case of the present invention, and is fixed in the mounting case by the cover member. At this time, if the hook of the cover member is hooked on the claw portion, it can be fixed easily, and in addition, it is easy to retain the adhesive in the recess. Therefore, it can be produced at low cost with stable quality. In addition, by providing at least one of the nail part, the adhesive reservoir, and the body part formed by drawing the bottom part and at least part of the side part, functions other than accommodating the electro-optical panel are added. Is possible.

  Such electro-optical devices include, for example, liquid crystal devices, organic EL devices, electrophoretic devices such as electronic paper, display devices using electron-emitting devices (Field Emission Display and Surface-Conduction Electron-Emitter Display), etc. The various apparatuses are mentioned.

  In order to solve the above problems, an electronic apparatus of the present invention includes the electro-optical device of the present invention.

  Since the electronic apparatus according to the present invention includes the electro-optical device according to the present invention, the electronic device according to the present invention exhibits the same operations and effects as the above-described electro-optical device.

  In addition, such an electronic apparatus includes a television receiver, a mobile phone, an electronic notebook, a word processor, a viewfinder type or a monitor direct view type video tape recorder, a workstation, a video phone, a POS, which are provided with the electro-optical device. Various electronic devices such as a terminal and a touch panel may be used.

  In order to solve the above-described problem, a first method for manufacturing a mounting case for an electro-optical device according to the present invention is used in an electro-optical device that displays a display image, and has an image display area in which the display image is displayed. An electro-optical device mounting case for manufacturing an electro-optical device mounting case for housing an electro-optical panel, wherein the image on the electro-optical panel is formed by pressing a single plate material. A main body forming a main body portion that can accommodate the electro-optical panel, including a bottom portion facing the peripheral region located around the display region and a side portion that is continuous with the bottom portion and surrounds a side edge of the electro-optical panel. A part corresponding to the side part of the plate material is formed by the press process so as to be partially uneven, in parallel with or in parallel with the part forming step and the body part forming step. It allows and a claw portion forming step of forming the counter surface and the claw portion where the hook is hooked on the opposite side of the cover covering the surface member with the bottom portion of the electro-optical panel accommodated in the main body portion.

  According to the first method for manufacturing a mounting case for an electro-optical device of the present invention, the body portion and the claw portion in the first mounting case are formed by pressing the plate material. Here, any of the main body portion forming step and the claw portion forming step may be executed first or at the same time.

  Further, other components may be formed separately or simultaneously with these steps. For example, as other components, a guide portion that guides the hook to the claw portion may be used. The guide portion may be formed in parallel with or before or after the main body portion forming step and the claw portion forming step. As described above, in the side portion of the main body portion, a concave portion corresponding to the convex portion is formed on the back surface of the convex portion serving as the guide portion. Therefore, in the step of forming the guide portion, the convex portion may be formed by setting the position shape in advance so that at least one of such concave portions is used as an adhesive reservoir.

  The components other than the main body part and the claw part are preferably formed by press working in terms of manufacturing efficiency. However, when the structure is complicated, the structural part is formed by another method such as die casting, and then the main body part, etc. You may make it join.

  Thus, in the first mounting case manufacturing method of the present invention, the mounting case in which the claw portion is added to the main body portion can be formed by press working. More specifically, since press working is employed for molding at least the main body portion and the claw portion, there is little or no quality degradation due to burrs or melt damage that occurs during die casting, so the first of the present invention The mounting case can be manufactured with stable manufacturing quality and at low cost.

  In order to solve the above-described problems, a second method for manufacturing a mounting case for an electro-optical device according to the present invention is used in an electro-optical device that displays a display image, and has an image display area that displays the display image. An electro-optical device mounting case for manufacturing an electro-optical device mounting case for housing an electro-optical panel, wherein the image on the electro-optical panel is formed by pressing a single plate material. A main body forming a main body portion that can accommodate the electro-optical panel, including a bottom portion facing the peripheral region located around the display region and a side portion that is continuous with the bottom portion and surrounds a side edge of the electro-optical panel. The press working so that the portion corresponding to the side portion of the plate material is partially recessed when viewed from the inside of the side portion in parallel with or before or after the body forming step. By further forming, and a glue reservoir formation process for forming an adhesive reservoir for retention of the adhesive for bonding and fixing the electro-optical panel.

  According to the second method for manufacturing the mounting case for an electro-optical device of the present invention, the body portion and the adhesive reservoir in the second mounting case are formed by pressing the plate material. Any of the main body forming step and the adhesive reservoir forming step may be executed first or at the same time. Further, other components may be formed separately or simultaneously with these steps. The components in this case are preferably molded by pressing for manufacturing efficiency. However, when the structure is complicated, the components are molded by other methods such as die casting, and then joined to the main body. It doesn't matter.

  As described above, in the second mounting case manufacturing method of the present invention, the mounting case to which the adhesive reservoir is added can be formed by press working. More specifically, since press working is employed for molding the main body and the adhesive reservoir, there is little or no quality degradation due to burrs or melting damage that occurs during die casting, so the second aspect of the present invention. The mounting case can be manufactured with stable manufacturing quality and at low cost.

  In order to solve the above problems, a third method for manufacturing a mounting case for an electro-optical device according to the present invention is used in an electro-optical device that displays a display image, and has an image display area in which the display image is displayed. An electro-optical device mounting case for manufacturing an electro-optical device mounting case for housing an electro-optical panel, wherein the image on the electro-optical panel is formed by pressing a single plate material. A main body forming a main body portion that can accommodate the electro-optical panel, including a bottom portion facing the peripheral region located around the display region and a side portion that is continuous with the bottom portion and surrounds a side edge of the electro-optical panel. Part forming step, and in the body part forming step, the bottom part and at least a part of the side part are formed as a continuous curved surface by drawing in the press working. It is formed.

  According to the second method for manufacturing the mounting case for an electro-optical device of the present invention, the main body portion of the third mounting case is formed by pressing the plate material. The components other than the main body are preferably molded together with the main body by a series of press processes, but may be molded by other methods.

  In such a manufacturing method of the second mounting case of the present invention, the third mounting case of the present invention that can exhibit excellent display quality is manufactured by forming at least the main body portion by press working. In addition, since at least the main body is molded by press working, there is little or no quality degradation due to burrs or melting damage that occurs during die casting, so the third mounting case of the present invention has stable production quality and It can be manufactured at a low cost.

  Such an operation and other advantages of the present invention will become apparent from the embodiments described below.

  Embodiments of the present invention will be described with reference to the drawings.

(1: Embodiment of electronic device)
First, the configuration of the electronic apparatus of the present embodiment will be described with reference to FIG. FIG. 1 shows a schematic configuration of an electronic apparatus according to this embodiment. In the present embodiment, a projection type liquid crystal projector is taken as an example of the electronic apparatus of the present invention.

  In FIG. 1, a liquid crystal projector 1100 is constructed as a multi-plate color projector using three liquid crystal light valves 100R, 100G, and 100B for RGB.

  In the liquid crystal projector 1100, when projection light is emitted from a lamp unit 1102 of a white light source such as a metal halide lamp, light components R, G, and R corresponding to the three primary colors of RGB are obtained by three mirrors 1106 and two dichroic mirrors 1108. The liquid crystal light valves 100R, 100G, and 100B corresponding to the respective colors are respectively guided to B. At this time, in particular, the B light is guided through a relay lens system 1121 including an incident lens 1122, a relay lens 1123, and an exit lens 1124 in order to prevent light loss due to a long optical path. The light components corresponding to the three primary colors modulated by the liquid crystal light valves 100R, 100G, and 100B are combined by the dichroic prism 1112 and then projected as a color image on the screen 1120 via the projection lens 1114. In the following description, when the liquid crystal light valves 100R, 100G, and 100B are indicated without distinction, they are referred to as the liquid crystal light valve 100. Here, each of the liquid crystal light valves 100R, 100G, and 100B corresponds to a specific example of the “electro-optical device” of the invention.

  The liquid crystal light valve 100 includes, for example, an active matrix driving type liquid crystal panel as will be described later housed in a mounting case.

  The liquid crystal projector 1100 is provided with a sirocco fan 1300 for sending cooling air to the liquid crystal light valves 100R, 100G and 100B. The sirocco fan 1300 includes a substantially cylindrical member having a plurality of blades 1301 on its side surface, and the cylindrical member rotates about its axis so that the blade 1301 generates wind. It has become. In addition, from such a principle, the wind produced by the sirocco fan 1300 is spirally spiraled. Such wind is supplied to each of the liquid crystal light valves 100R, 100G, and 100B through an air path (not shown in FIG. 1), and the air outlets 100RW, 100GW, and the like provided near the liquid crystal light valves 100R, 100G, and 100B, and The liquid crystal light valves 100R, 100G, and 100B are sent from 100BW.

  In the configuration described above, the mounting cases of the liquid crystal light valves 100R, 100G, and 100B are attached to the three side surfaces of the dichroic prism 1112, respectively. From each of the mounting cases, an FPC connected to the liquid crystal device is drawn out. Each end portion of the drawn FPC is bent to the upper surface side or the lower surface side of the dichroic prism 1112 and connected to an external connector. At that time, if bent tightly, the FPC may be damaged.

  Further, when the liquid crystal projector 1100 is driven, the temperature of the liquid crystal light valve 100 rises due to the projection light from the lamp unit 1102 that is a powerful light source. At this time, if the temperature rises excessively, the liquid crystal in the liquid crystal light valve 100 deteriorates, or the transmittance is uneven due to the appearance of hot spots due to partial heating of the liquid crystal panel due to unevenness of the light source light.

  Therefore, in this embodiment, the liquid crystal light valve 100 is particularly configured as follows to prevent the FPC from being damaged and efficiently suppress the temperature rise.

(2: Embodiment of electro-optical device)
Next, an embodiment according to the electro-optical device of the invention will be described. A liquid crystal light valve 100 as an example of the “electro-optical device” of the present invention includes a liquid crystal panel housed in a mounting case. Therefore, first, a specific configuration example of the liquid crystal panel will be described with reference to FIGS. 2 and 3, and then, a configuration example and operation of the mounting case and the liquid crystal light valve 100 with reference to FIGS. 4 to 9. Will be described. And the manufacturing method of a mounting case is demonstrated with reference to FIGS.

(2-1: Configuration of the liquid crystal panel)
The liquid crystal panel in the present embodiment is a specific example of the “electro-optical panel” of the present invention, and adopts a TFT active matrix driving system with a built-in driving circuit. FIG. 2 is a plan view of the liquid crystal panel when the TFT array substrate is viewed from the side of the counter substrate together with each component formed thereon, and FIG. 3 is a cross-sectional view taken along line HH ′ of FIG.

  2 and 3, in the liquid crystal panel, the TFT array substrate 10 and the counter substrate 20 are arranged to face each other. A liquid crystal layer 50 is sealed between the TFT array substrate 10 and the counter substrate 20, and the TFT array substrate 10 and the counter substrate 20 are provided with a sealing material 52 provided in a seal region positioned around the image display region 10a. Are bonded to each other.

  The sealing material 52 is made of, for example, an ultraviolet curable resin, a thermosetting resin, or the like for bonding the two substrates, and is applied on the TFT array substrate 10 in the manufacturing process and then cured by ultraviolet irradiation, heating, or the like. It is. Further, in the sealing material 52, a gap material such as glass fiber or glass beads for dispersing the distance (inter-substrate gap) between the TFT array substrate 10 and the counter substrate 20 to a predetermined value is dispersed. That is, the electro-optical device according to the present embodiment is suitable for a small and enlarged display for a projector light valve.

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

  In the peripheral area located outside the sealing area where the sealing material 52 is arranged, the data line driving circuit 101 and the external circuit connection terminal 102 extend along one side of the TFT array substrate 10 in the area extending around the image display area. The scanning line driving circuit 104 is provided along two sides adjacent to the one side. Further, on the remaining side of the TFT array substrate 10, a plurality of wirings 105 are provided for connecting between the scanning line driving circuits 104 provided on both sides of the image display region 10a. As shown in FIG. 2, vertical conduction members 106 that function as vertical conduction terminals between the two substrates are disposed at the four corners of the counter substrate 20. On the other hand, the TFT array substrate 10 is provided with vertical conduction terminals in a region facing these corners. Thus, electrical conduction can be established between the TFT array substrate 10 and the counter substrate 20.

  In FIG. 3, on the TFT array substrate 10, an alignment film is formed on the pixel electrode 9a after the pixel switching TFT, the scanning line, the data line and the like are formed. On the other hand, on the counter substrate 20, in addition to the counter electrode 21, a lattice-shaped or striped light-shielding film 23 and an alignment film are formed on the uppermost layer portion. Further, the liquid crystal layer 50 is made of, for example, a liquid crystal in which one or several types of nematic liquid crystals are mixed, and takes a predetermined alignment state between the pair of alignment films.

  2 and 3, on the TFT array substrate 10, in addition to the data line driving circuit 101, the scanning line driving circuit 104, etc., sampling is performed to sample the image signal on the image signal line and supply it to the data line. A circuit, a precharge circuit for supplying a precharge signal of a predetermined voltage level to a plurality of data lines in advance of an image signal, an inspection circuit for inspecting quality, defects, etc. of the electro-optical device during manufacturing or at the time of shipment Etc. may be formed.

(2-2: Configuration of mounting case and liquid crystal light valve)
Next, with reference to FIGS. 4 to 8, a specific configuration of the mounting case for mounting the liquid crystal panel described above and a specific configuration of the liquid crystal light valve in which the liquid crystal panel is mounted on the mounting case will be described. To do. 4 is an exploded perspective view showing the liquid crystal light valve according to the present embodiment. FIG. 5 is a front view of the liquid crystal light valve. FIG. 6 is a side view of FIG. 7 is a side view seen from the arrow Y side in FIG. FIG. 8 is a rear view of FIG. 5 viewed from the back side.

  As shown in FIGS. 4 to 8, the liquid crystal light valve 100 is configured such that the liquid crystal panel 500 configured as described above is accommodated in a mounting case 601.

  The liquid crystal panel 500 has the form shown in FIGS. 2 and 3, and a flexible printed wiring board (hereinafter abbreviated as FPC) 501 is provided on the external circuit connection terminal 102 (see FIGS. 2 and 3). It is connected. In addition, a dustproof substrate 400 is provided on each surface of the TFT array substrate 10 and the counter substrate 20 opposite to the surfaces facing each other with the liquid crystal layer 50 interposed therebetween (see FIG. 4). Further, an optical member such as an antireflection plate is attached to the outer surface of the liquid crystal panel 500. However, a polarizing plate, a retardation plate, and the like may be attached to the outer surface of the liquid crystal panel 500, but the optical system of the liquid crystal projector 1100 may be provided.

  The mounting case 601 includes a frame 610 that houses the liquid crystal panel 500 and a cover member 620 that covers the frame 610. The cover member 620 is combined with the frame 610 by hooking hooks 627 on both side edges to the claw portions 617 formed on the side surfaces of the frame 610. The liquid crystal panel 500 is accommodated in a direction in which the counter substrate 20 side faces the frame 610, and the outer surface on the TFT array substrate 10 side is covered with a cover member 620. That is, the liquid crystal light valve 100 in this embodiment is based on the assumption that light enters from the frame 610 side, passes through the liquid crystal panel 500, and exits from the cover member 620 side (in FIG. 1, dichroic). The cover member 620 is opposed to the prism 1112 instead of the frame 610).

  The cover member 620 includes a frame-shaped main body in which a window portion 625 is opened, and hooks 627 on both sides of the main body. The window 625 is opened to face the image display area 10a in order to take out light emitted from the image display area 10a (see FIG. 2) of the liquid crystal panel 500.

  On the other hand, the frame 610 is made of a plate material such as an aluminum alloy plate, and each part is formed by press working. The plate material used as the frame 610 is preferably a material having high workability and a relatively high thermal conductivity in order to function as a heat sink for the liquid crystal panel 500, such as aluminum, copper, or an alloy thereof. Configure. Here, the frame 610 includes mounting holes 611a to 611e, a cooling air guide 612, and a heat radiating blade 614F, in addition to the main body 613 that houses the liquid crystal panel 500, and the whole is a single sheet. Molded from sheet material.

  The main body 613 is shaped so as to be hollowed out so as to match the shape of the liquid crystal panel 500. That is, the main body portion 613 includes a portion facing the outer surface on the counter substrate 20 side and a portion surrounding the side surface, and these portions are the “bottom” and “side” of the main body portion in the mounting case of the present invention. Corresponds to a specific example. In addition, the light incident side portion of the main body 613 is particularly continuous without any gaps by drawing in order to prevent stray light from a peripheral region located around the image display region 10a from entering the image display region 10a. Molded. However, in this case, in order to form the blade portion 614F and the like by further processing the end portion of the plate material, the light emission side portion of the main body portion 613 is cut into portions corresponding to the four corners of the main body portion 613. It is molded by bending and bending.

  The main body portion 613 also includes a window portion 615, a guide portion 616, and a claw portion 617. The window 615 is opened to face the image display area 10a in order to transmit light to the image display area 10a (see FIG. 2) of the accommodated liquid crystal panel 500. For this reason, light emitted from the lamp unit 1102 in the liquid crystal projector 1100 shown in FIG. 1 can enter the liquid crystal panel 500 through the window 615.

  Further, the main body 613 is configured such that a peripheral region located around the image display region 10a contacts the edge of the window 615, and conducts heat of the liquid crystal panel 500 to the frame 610 and releases it to the outside air. can do.

  The guide part 616 and the claw part 617 are formed by pressing so that the side part of the main body part 613 is partially uneven. As described above, the claw portion 617 is used to hook the hook 627 and is formed at a position corresponding to the hook 627 by, for example, cutting and raising. The guide portions 616 are respectively formed on both sides of the claw portion 617 by, for example, drawing, and the step on the claw portion 617 side functions as a groove for guiding the hook 627 to the claw portion 617.

  By the way, in the press work, when a portion protruding on the outer surface of the plate material is formed, a recess having the same shape is formed on the back surface. Therefore, in the present embodiment, the guide portion 616 is molded, and at the same time, a depression generated on the back surface thereof is used as the adhesive reservoir 616a. The adhesive reservoir 616a is provided to retain the adhesive when the liquid crystal panel 500 is bonded and fixed in the frame 610.

  Mounting holes 611a to 611e, an air guide portion 612, and a blade portion 614F are formed on an extension of a portion of the main body portion 613 where the guide portion 616 and the claw portion 617 are not formed.

  Each of the mounting holes 611a to 611e is formed so as to penetrate a base formed by partially folding a portion corresponding to the periphery of the main body portion 613 of the plate material by press working. These mounting holes 611a to 611e are used when the liquid crystal light valve 100 is mounted in the liquid crystal projector 1100 as shown in FIG. Among these, the mounting holes 611 a to 611 d are provided at the four corners of the frame 610. In addition, the frame 610 is provided with a mounting hole 611e. The mounting hole 611e is arranged so as to form a triangle together with the mounting holes 611c and 611d. As a result, in the liquid crystal light valve 100, both four-point fixing using the mounting holes 611a to 611d at the four corners and three-point fixing using the mounting holes 611e, 611c, and 611d can be performed.

  The air guide portion 612 has a slope 612T in which a portion corresponding to the periphery of the main body portion 613 of the plate material is partially pressed. As shown in FIG. 4 or FIG. 6, the inclined surface 612T is formed by, for example, bending the peripheral edge of the main body 613 to the main body 613 side at an arbitrary angle by bending. The slope 612T acts to rectify the cooling air supplied toward the frame 610 and to guide the cooling air toward the surface where the window 615 is opened, as will be described later. Here, the air guide portion 612 and the blade portion 614F are formed on opposite sides of the surface where the window portion 615 is opened.

  The blade portion 614F is formed by pressing so that a portion corresponding to the peripheral edge of the main body portion 613 of the plate material extends toward the outside of the main body portion 613, and is conducted from the liquid crystal panel 500 to the frame 610. It functions as a so-called heat radiation fin that releases heat into the outside air. Here, as shown in FIG. 5, a plurality of linear steps 614a formed by, for example, half punching are formed on both surfaces of the blade portion 614F in parallel. These steps 614a act to increase the surface area of the blades 614F to the frame 610 and enhance the heat dissipation effect.

  As shown in FIG. 7, in the liquid crystal light valve 100, the other end side of the FPC 501 whose one end side is connected to the liquid crystal panel 500 is drawn out of the mounting case 601 from the opening 614. In the present embodiment, the opening 614 is defined at a position corresponding to a portion processed into the blade portion 614 </ b> F on the periphery of the main body portion 613. That is, as a result of processing a portion along one side of the bottom portion of the peripheral edge of the main body portion 613 into the blade portion 614F, an opening generated in a region occupied by this portion is used as the opening 614. As described above, the simplified structure that simultaneously solves the problem of the opening generated in the portion processed into the blade portion 614F and the problem of providing an opening for drawing out the FPC 501 is suitable for molding by press working. This contributes to simplifying the manufacturing process.

(2-3: Operation of liquid crystal light valve)
Next, the operation of the liquid crystal light valve described above will be described with reference to FIG. FIG. 9 shows a typical wind flow for the liquid crystal light valve according to the present embodiment.

  In the liquid crystal projector 1100 as shown in FIG. 1, the cooling air sent from the sirocco fan 1300 toward the liquid crystal light valve 100 flows to the outer surface of the mounting case 601 as shown in FIG. In order to realize such a flow of cooling air, the liquid crystal light valves 100R, 100G, and 100B are arranged so that the air outlets 100RW, 100GW, and 100BW in FIG. 1 face the air guide portion 612 of the mounting case 601. Need to be placed.

  In FIG. 9, on the outer surface of the mounting case 601, a flow of the cooling air W1 that is rectified by the slope 612T and guided to the main body 613 as if running up the slope 612T is generated. The cooling air W <b> 1 takes heat of the liquid crystal panel 500 from the exposed surface of the window portion 615. That is, in the liquid crystal light valve 100, due to the presence of the air guide portion 612, the cooling air W1 is efficiently sent toward the main body portion 613, and the liquid crystal panel 500 is effectively cooled.

  In addition, here, the cooling air W1 flows toward the blade portion 614F that exists just leeward by being disposed opposite to the air guide portion 612. Therefore, the blade 614F and the frame 610 are cooled by the cooling air W1. When the blade portions 614F to the frame 610 are actively cooled in this manner, it is very effective for releasing heat conducted from the liquid crystal panel 500 to the outside of the mounting case 601. That is, the blade portion 614F itself promotes the release of heat conducted to the frame 610, and the step 614a formed on the surface acts to increase the surface area and increase the heat dissipation effect. Here, the extending direction of the step 614a substantially matches the direction of the cooling air W1, and the step 614a also contributes to the flow of the cooling air W1.

  Various cooling mechanisms such as a wind guide slope and blades having such a cooling action are usually realized in a die-casting mounting case, but in the case of molding by pressing like the mounting case 601, the design is There is a restriction that upper pressing must be possible, and further structural ingenuity is required. Here, specifically, the portion corresponding to the periphery of the main body portion 614 is partially deformed to form the air guide portion 612 and the blade portion 614F, so that the cooling efficiency of the mounting case 601 is enhanced. Yes.

  In this operation, the liquid crystal light valve 100 performs display using projection light from the frame 610 side, but the portion of the frame 610 from the bottom to the side that borders the image display region 10a is subjected to drawing processing. Since it is formed as a continuous curved surface in a single plate material, a situation where stray light enters the image display region 10a from a gap formed in the frame 610 can be prevented, and good display quality can be maintained.

(2-4: Manufacturing method of mounting case)
Next, with reference to FIGS. 10 to 24, a method for manufacturing the mounting case 601, particularly the frame 610, will be described. FIGS. 10 to 21 show the respective manufacturing steps of the frame 610 with a plan view and a cross-sectional view. As sectional views, a longitudinal sectional view and a transverse sectional view passing through the center of each plan view are arranged in parallel with the corresponding sectional views, respectively. In these cross-sectional views, components are omitted or added appropriately so that the process can be easily understood. FIGS. 22A to 22F show a series of manufacturing steps as seen from the cross section. FIGS. 23A to 23F and FIGS. 24A to 24E show a series of manufacturing steps as viewed from the longitudinal section.

  First, in the process of FIG. 10, blank shapes B1 and B2 are cut out by a laser processing machine at the central portion and both ends of a plate material 610a such as an aluminum alloy.

  Next, in the step of FIG. 11, the bottom surface of the main body 613 is formed in a portion around the blank B1 of the plate material 610a by drawing, and the guide portion 616 ′ and the end near the blank B1 of the blank B2 are formed. The adhesive reservoir 616a ′ is formed. That is, the bottom part of the main body part 613 is formed as a curved surface that is continuous with the side part of the plate material 610a.

  The guide portion 616 ′ and the adhesive reservoir 616a ′ are in the relationship of the front and back of the irregularities attached to the plate material 610a, and the guide portion 616 and the adhesive reservoir 616a are respectively cut by cutting the plate material 610a into a predetermined outer shape. Become. That is, by designing the frame 610 to have such a structure, the guide portion 616 and the adhesive reservoir 616a can be efficiently formed. In the drawing process here, the plate material 610a is partially formed by a drawing machine using a mold corresponding to the shape of the bottom surface of the main body part 613 and the guide part 616 'to the adhesive reservoir 616a'.

  When a portion that protrudes from the outer surface of the plate member 610a, such as the guide portion 616 ', is formed, a recess is formed on the back surface thereof. That is, here, the depression generated on the back side of the guide portion 616 'becomes the adhesive reservoir 616a'. Therefore, in the present embodiment, the guide portion 616 and the adhesive reservoir 616a can be efficiently formed in press working.

  Next, in the process of FIG. 12, “cornering” is performed on the four corners of the bottom surface of the main body 613 by further drawing. “Cutting out” refers to rounding a corner of the plate material 610a that is bent by the drawing process of FIG. By forming the corners in this way, the liquid crystal panel 500 can be fitted into this portion.

  Next, in the process of FIG. 13, unnecessary portions around the plate material 610a are cut out by a laser processing machine, and a plate material 610b having a predetermined outer shape is cut out. At that time, portions that are the guide portions 616 and the adhesive reservoirs 616a are left on both sides of the bottom surface of the main body portion 613. Furthermore, it opens so that blank B1 may be expanded further, and the window part 615 is formed. Thereafter, the peripheral edge of the plate material 610b is hand-worked as necessary.

  Next, in the process of FIG. 14, the plate material 610b is bent by a bender. That is, of the plate material 610b, the upper end portion and the lower end portion in the plan view of FIG. 14, that is, the portion corresponding to the peripheral edge of the main body portion 613 is substantially perpendicular to the bottom surface of the main body portion 613 (in the longitudinal sectional view of FIG. Bent in the direction of the arrow). However, at this time, with respect to the lower end portion, the hole forming portions 611ca ′ and 611da ′, which are the portions where the attachment holes 611c and 611d are formed, are bent, but the blade forming portion 614F ′ that becomes the blade portion 614F is bent. It is left as it is.

  Further, in the process of FIG. 15, the plate material 610b is bent once again. Next, in the plan view of FIG. 15, the upper end portion and the lower end portion of the plate material 610b are substantially perpendicular to the bottom surface of the main body portion 613 at a position inside the previous process (in the direction of the arrow in the longitudinal sectional view of FIG. 15). ) Wrap it up. As a result, a step corresponding to the outer shape of the liquid crystal panel 500 is formed from the bottom of the main body 613 to the lower side. In the present embodiment, the opening 614 is automatically formed when the blade forming portion 614F 'is one step lower than the folded portion in this step, that is, the portion corresponding to the peripheral edge of the main body portion 613.

  Next, in the process of FIG. 16, base portions 611aa to 611ea are formed by bending a predetermined portion on the upper side of the plate member 610b and the lower hole forming portions 611ca 'and 611da' in the plan view by 180 degrees.

  Next, in the step shown in FIG. 17, claw portions 617 sandwiched between the guide portions 616 are formed on both side edges of the plate material 610b in the plan view by cutting and raising, and the following two types of half-cutting processing ( A so-called half-punch process is performed. One is a round and half punching process, whereby circular dies are attached to the pedestal portions 611ca, 611da and 611ea. A mold having a smaller diameter than the mounting holes 611c and 611d is attached to each of the pedestal portions 611ca and 611da. A mold having a larger diameter than the mounting hole 611e is attached to the pedestal portion 611ea. The other is a two-step half-cutting process. As a result, as shown in the cross-sectional view of FIG. 17, linear step 614a is formed on both surfaces of the blade forming portion 614F ′, and the blade portion 614F is formed. .

  Next, in the process of FIG. 18, the plate material 610b is bent using a mold. That is, both side edges of the plate member 610b in the plan view of FIG. 18 are bent so as to rise from the bottom portion (that is, in the direction of the arrow in the cross-sectional view of FIG. 18) in the same manner as the upper end portion and the lower end portion in the plan view. As a result, the main part 613 is molded with the part bent here and the upper end part and the lower end part bent in two steps as side parts surrounding the bottom part.

  Next, in the process of FIG. 19, the bending of the plate material 610b is performed by a bender. That is, of the plate material 610b, the pedestal portions 611aa and pedestal portions 611ea, and the slope forming portions 612T ′ extending between the pedestal portions 611ea and pedestal portions 611ba are substantially perpendicular to the bottom surface of the main body portion 613 (FIG. 19). (In the direction of the arrow in the longitudinal sectional view).

  Subsequently, in the process of FIG. 20, the bending process is further performed by the bender on the slope forming part 612T ′. In this step, the slope forming part 612T 'is bent approximately 45 degrees in the direction of the arrow in the longitudinal sectional view of FIG. As a result, the outer surface of the slope forming portion 612T 'becomes the slope 612T. Thus, the air guide portion 612 having the inclined surface 612T is formed between the pedestal portion 611aa and the pedestal portion 611ea, and between the pedestal portion 611ea and the pedestal portion 611ba.

  Next, in the step of FIG. 21, mounting holes 611a to 611e are formed so as to penetrate each of the pedestal portions 611aa to 611ea. The attachment holes 611a to 611e are formed, for example, by drilling holes at predetermined positions of the pedestal portions 611aa to 611ea with a laser processing machine to chamfer the peripheral edges of the holes. In the present embodiment, the mounting holes 611a to 611e are formed in the pedestal portions 611aa to 611ea formed by folding the plate material 610b twice by bending 180 degrees, so that the mounting holes 611a to 611e have a certain height and strength. Holes 611a to 611e can be formed.

  In the mounting holes 611a to 611e after chamfering, for example, when screws are fixed to these mounting holes with an adhesive, the adhesive accumulates in the gap between the chamfered portion of the mounting hole and the screw, so that it is relatively reliable. It becomes possible to fix the screw to the adhesive. Or when using a countersunk screw, the shape of a screw and an attachment hole matches, and more reliable fixation is possible. Thus, the frame 610 provided with the mounting holes 611a to 611e is completed. As described above, the frame 610 has various functions such as cooling the liquid crystal panel 500, hooking the hook 627, storing an adhesive, and mounting. In this embodiment, such a structure can be formed only by pressing. Therefore, it can be manufactured with high productivity.

  In this case, the mounting holes 611a to 611e are all chamfered, but it is not always necessary to perform chamfering. For example, the mounting holes 611c, 611d, and 611e are mainly used. You may only give with respect to a mounting hole.

  FIG. 22 shows in order the main steps viewed from the cross section in the series of steps so far. Note that (a) to (f) in FIG. 22 correspond to the steps in FIGS. 10, 11, 12, 13, 17, and 18, respectively.

  Moreover, FIG.23 and FIG.24 represents the main processes seen from the longitudinal cross section among the series of processes so far. FIGS. 23A to 23F correspond to the steps in FIGS. 24A to 24D correspond to the steps in FIGS. 16, 19, 20, and 21, respectively.

  The cover member 620 is manufactured, for example, by cutting a thin metal plate into the outer shape shown in FIG. 4, opening the window 625, and bending the hook 627. As described above, the mounting case 601 according to the present embodiment is manufactured.

  The liquid crystal panel 500 can be manufactured by, for example, a normal method. The manufactured liquid crystal panel 500 is fitted in the main body 613 of the frame 610 so that the FPC 501 is connected to the external connection terminal 102 and the FPC 501 is led out from the opening 614 to the outside. At that time, an adhesive is supplied to the inside of the frame 610 in advance, and the liquid crystal panel 500 and the frame 610 are bonded to each other. Inside the frame 610, the adhesive stays in the adhesive reservoir 616a, so that the liquid crystal panel 500 can be bonded to the frame 610 relatively reliably.

  Furthermore, the cover member 620 is attached to the exposed surface side of the liquid crystal panel 500 in the frame 610 by hooking the hook 627 of the cover member 620 on the claw portion 617 on the side surface of the frame 610. At the time of mounting, the hook 627 is guided by the step on the claw part 617 side of the guide part 616 provided on both sides of the claw part 617, so that it can be reliably hooked on the claw part 617. Thus, the liquid crystal light valve 100 according to this embodiment is manufactured.

  As described above, in the mounting case 601 in the present embodiment, the frame 601 is manufactured by almost all processes by press working. Moreover, although the frame 610 has a relatively complicated structure in which a structure such as a claw portion 617 and a guide portion 616 (and an adhesive reservoir 616a) is added to the side portion of the main body portion 613, the frame 610 is formed by pressing. Therefore, it can be manufactured at a lower cost with a more stable manufacturing quality than when die casting.

  Here, since the part from the bottom part to the side part of the main body part 613 is formed by drawing, it is possible to prevent display quality from being deteriorated due to light leakage from the frame 610.

  The mounting case manufacturing method described in the above embodiment is a specific example of the mounting case manufacturing method according to the present invention. For example, the process order is changed or the process is modified according to the frame structure. Variations are possible.

  The frame 610 in the above embodiment is provided with the claw portion 617 and the guide portion 616 (that is, the adhesive reservoir 616a). However, the guide portion and the adhesive reservoir are not necessarily configured to be integrated with each other. It may be formed separately. Moreover, although a guide part is a component which should be shape | molded incidentally when providing a nail | claw part, an adhesive reservoir can be provided irrespective of a nail | claw part. That is, as a frame structure according to the present invention, only the claw portion or only the adhesive reservoir may be added to the main body portion.

(Modifications related to mounting holes)
Next, modified examples of the attachment holes 611a to 611e will be described with reference to FIGS. FIGS. 25 to 29 sequentially show the manufacturing steps of the frame according to the modification. 30A to 30C show the process of FIG. 29 in more detail. In the present modification, the same components as those in the above embodiment are denoted by the same reference numerals, and description thereof will be omitted as appropriate.

  In the above embodiment, the case where the mounting holes 611a to 611e are formed in the pedestal portions 611aa to 611ea has been described. However, even if the mounting holes are formed by burring as in the frame 610 ′ shown in FIG. Good. In that case, for example, as shown in FIGS. 25 and 26, the plate material 610a processed in the same manner as the embodiment is cut out like a plate material 610b '. The outer shape of the plate member 610b 'is shorter than the plate member 610b of the embodiment by the amount that the portions where the mounting holes 611a to 611e are provided are not bent.

  Further, as shown in FIG. 27, a claw portion 617 and a blade portion 614F are formed by a process corresponding to FIG. 17, and a circular mold is formed in each of the portions where the mounting holes 611c, 611d and 611e are provided. wear. Subsequently, as shown in FIG. 28, both side edges of the bottom portion are bent and the guide portion 612 is formed.

  Thereafter, as shown in FIG. 29, attachment holes 611A to 611E are formed by burring in each predetermined portion of the plate material 610b '. Specifically, for example, as shown in FIG. 30A, first, the pilot holes 611A 'to 611E' are opened by a laser processing machine or the like. 30 (a) to 30 (c) show only the mounting holes 611D and 611E, the same processing is applied to the other mounting holes.

  Next, in the step of FIG. 30B, burring is performed on the pilot holes 611A 'to 611E'. That is, each of the pilot holes 611A 'to 611E' is stretched into a cylindrical shape and then flanged to form the attachment holes 611A to 611E. At this point, the molded plate material 610b 'may be regarded as the frame 610' and the manufacturing may be terminated. However, in this step, the mounting holes 611A to 611E are further impositioned in the step of FIG. Thus, the frame 610 'shown in FIG. 29 is completed.

  As in the embodiment, the order of the steps may be changed in this modification. For example, the mounting hole forming step may be performed earlier, or only the pilot hole processing may be performed first.

  The present invention is not limited to the above-described embodiments, and can be appropriately changed without departing from the spirit or idea of the invention that can be read from the claims and the entire specification, and an electro-optical device with such a change. A mounting case and manufacturing method thereof, an electro-optical device, and an electronic apparatus are also included in the technical scope of the present invention. In the above embodiment, a liquid crystal light valve provided with a liquid crystal panel has been described as an example. However, the electro-optical device of the present invention can be used as an electro-optical panel in addition to a liquid crystal panel, an electroluminescence device, an electrophoretic device, and an electron-emitting device. Various display devices such as a display device (Field Emission Display and Surface-Conduction Electron-Emitter Display) using the above may be provided. In addition, the electronic apparatus of the present invention including such an electro-optical device may be a reflection type projector as well as a projection type. In addition, a television receiver, a mobile phone, an electronic notebook, a word processor, a viewfinder type Alternatively, various electronic devices such as a monitor direct-view video tape recorder, a workstation, a videophone, a POS terminal, and a touch panel can be realized.

It is a top view of embodiment of the electronic device which concerns on this invention. 1 is a plan view of an embodiment of an electro-optical device according to the invention. It is H-H 'sectional drawing of FIG. 1 is an exploded perspective view of an electro-optical device according to an embodiment. 1 is a plan view of an electro-optical device according to an embodiment. FIG. 6 is a diagram illustrating a side surface of the electro-optical device viewed from the direction of an arrow X in FIG. 5. FIG. 6 is a diagram illustrating a side surface of the electro-optical device viewed from the direction of arrow Y in FIG. 5. FIG. 6 is a rear view of the electro-optical device in FIG. 5. FIG. 3 is a perspective view of the electro-optical device according to the embodiment, and is an explanatory diagram illustrating a typical wind flow with respect to the electro-optical device. It is process drawing for demonstrating the manufacturing method of the mounting case which concerns on embodiment. FIG. 11 is a process diagram illustrating a manufacturing process subsequent to FIG. 10. FIG. 12 is a process diagram illustrating a manufacturing process subsequent to FIG. 11. FIG. 13 is a process diagram illustrating a manufacturing process subsequent to FIG. 12. FIG. 14 is a process diagram illustrating a manufacturing process subsequent to FIG. 13. FIG. 15 is a process diagram illustrating a manufacturing process subsequent to FIG. 14. FIG. 16 is a process diagram illustrating a manufacturing process subsequent to FIG. 15. FIG. 17 is a process diagram illustrating a manufacturing process subsequent to FIG. 16. FIG. 18 is a process diagram illustrating a manufacturing process subsequent to FIG. 17. FIG. 19 is a process diagram illustrating a manufacturing process subsequent to FIG. 18. FIG. 20 is a process diagram illustrating a manufacturing process subsequent to FIG. 19. FIG. 21 is a process diagram illustrating a manufacturing process subsequent to FIG. 20. It is process drawing for demonstrating the manufacturing method of the mounting case which concerns on embodiment, Comprising: It is a figure which represents each process in order with the cross section of a mounting case. It is process drawing for demonstrating the manufacturing method of the mounting case which concerns on embodiment of this invention, Comprising: It is a figure which represents each process in order with the longitudinal cross-section of a mounting case. FIG. 24 is a process diagram sequentially illustrating each manufacturing process subsequent to FIG. 23. It is process drawing for demonstrating the manufacturing method of the modification of the mounting case which concerns on embodiment. FIG. 26 is a process diagram illustrating a manufacturing process subsequent to FIG. 25. FIG. 27 is a process diagram illustrating a manufacturing process subsequent to FIG. 26. FIG. 28 is a process diagram illustrating a manufacturing process subsequent to FIG. 27. FIG. 29 is a process diagram illustrating a manufacturing process subsequent to FIG. 28. FIG. 30 is a process diagram illustrating details of the process in FIG. 29.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10a ... Image display area, 10 ... TFT array substrate, 20 ... Counter substrate, 500 ... Liquid crystal panel, 501 ... FPC, 601 ... Mounting case, 610 ... Frame, 611a-611e ... Mounting hole, 612 ... Air guide part, 612T ... Slope, 613 ... body part, 614 ... opening, 614F ... blade part, 615 ... window part, 616 ... guide part, 617 ... claw part, 620 ... cover member, 625 ... window part, 627 ... hook, 100 (100R, 100G , 100B) ... liquid crystal light valve, 1100 ... liquid crystal projector, 1102 ... lamp unit, 1300 ... sirocco fan.

Claims (11)

A mounting case for an electro-optical device used for an electro-optical device that displays a display image, and for housing an electro-optical panel having an image display area on which the display image is displayed,
A plate member is formed by press working, and a bottom portion facing the peripheral region located in the periphery of the image display region in the electro-optical panel and a side portion that is continuous with the bottom portion and surrounds a side edge of the electro-optical panel A main body configured to accommodate the electro-optic panel ,
A portion of the plate material corresponding to the peripheral edge of the main body portion is partially pressed so as to have an inclined surface;
With
The mounting case for an electro-optical device, wherein the bottom portion and at least a part of the side portion are formed as a continuous curved surface in one plate material as the plate material by drawing in the press working.   A portion of the plate material corresponding to a portion located on the opposite side to the air guide portion at the periphery of the main body portion is partially extended toward the outside of the main body portion. The mounting case for an electro-optical device according to claim 1, further comprising a blade portion that is pressed. Before SL side is being molded by the press working so as to have a partially uneven, the cover member for covering the opposing surface opposite to the surface of the bottom portion of the electro-optical panel accommodated in the main body portion The mounting case for an electro-optical device according to claim 1 , further comprising a claw portion on which the hook is hooked. The mounting case for an electro-optical device according to claim 3 , wherein the claw portion is formed by cutting and raising processing in the press processing. A guide portion that guides the hook by at least a part of a convex portion that is formed by pressing so as to protrude from the outer surface side of the side portion at a portion that contacts the outer edge of the hook in the side portion. The mounting case for an electro-optical device according to claim 3 , wherein the mounting case is formed. At least one recess that occur inside of the side by the molding of the projections, according to claim 5, characterized in that it is used as an adhesive reservoir for retention of the adhesive for bonding and fixing the electro-optical panel Mounting case for electro-optic devices. The mounting case for an electro-optical device according to claim 3 , wherein at least the main body portion and the claw portion are formed of a single plate material as the plate material. A mounting case for an electro-optical device according to any one of claims 1 to 7,
The electro-optical panel housed in the main body ;
Electro-optical apparatus comprising: a.   An electronic apparatus comprising the electro-optical device according to claim 8. Manufacture of a mounting case for an electro-optical device that is used in an electro-optical device for displaying a display image, and that houses an electro-optical device housing an electro-optical panel having an image display area for displaying the display image A method,
By forming a single plate material by press working, a bottom portion facing the peripheral region located in the periphery of the image display region in the electro-optical panel and a continuous portion surrounding the bottom portion surround the side edge of the electro-optical panel. A body part forming step of forming a body part including the side part capable of accommodating the electro-optical panel ;
A portion of the plate material corresponding to the peripheral edge of the main body is partially bent so as to have an inclined surface by the press work, and an air guide portion is formed.
Contains
The method for manufacturing a mounting case for an electro-optical device, wherein, in the main body portion forming step, the bottom portion and at least a part of the side portion are formed as a continuous curved surface by drawing in the press working. In parallel with or before or after the main body forming step, the portion corresponding to the side portion of the plate material was accommodated in the main body portion by molding the portion so as to be partially uneven by the pressing. 11. The electro-optic according to claim 10, further comprising a claw portion forming step of forming a claw portion on which a hook of a cover member that covers a surface opposite to the surface facing the bottom portion of the electro-optic panel is hooked. A method for manufacturing a mounting case for a device.

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