JP2011237647A - Image display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an image display device in which a frame can be narrower by holding a liquid crystal panel securely even if a common difference in the size of the liquid crystal panel to be manufactured is included.SOLUTION: In an image display device 10, a fixed structure 13 includes a plurality of members supporting the fixing of a liquid crystal panel 11. The fixed structure 13 includes: a deformation preventing member 21 having a facing part 22; and a contact part 24. The facing part 22 faces to at least a part of an outer edge part of the liquid crystal panel 11 from another surface 19 side. The contact part 24 contacts to the outer edge part from outward in a plane direction of the liquid crystal panel 11. A frame part 16 faces to the outer edge part of the liquid crystal panel 11 from one surface 18 side and holds the outer edge part with the fixed structure 13. A connection member 17 connects the deformation preventing member 21 to a base 12.

Description

  The present invention relates to an image display device that displays an image.

  FIG. 10 is a cross-sectional view of a liquid crystal display device 1A which is an image display device according to the first prior art. The liquid crystal display device 1A includes a rectangular frame 2A, a rectangular liquid crystal panel 3A, and a frame-shaped bezel 4A. The liquid crystal panel 3A and the frame-like bezel 4A are attached to the frame 2A. The frame 2A is integrally formed as a whole. The bezel 4A and the frame 2A are fixed to each other by a screw member 5A, whereby the surface direction outer edge portion of the liquid crystal panel 3A is sandwiched between the bezel 4A and the frame 2A (see, for example, Patent Document 1). Accordingly, the inner dimensions of the frame 2A and the bezel 4A in the direction of each side are set smaller than the outer dimensions of the liquid crystal panel 3A in the direction of each side.

  In recent years, the entire image display device is required to be downsized, whereas an image display device having a large display screen is required. Therefore, it is desired that the frame provided outside the surface of the display screen is small, and a narrow frame is required.

  FIG. 11 is a cross-sectional view of a liquid crystal display device 1B which is an image display device according to the second prior art. The liquid crystal display device 1B includes a backlight chassis 7 having a rectangular shape and a rectangular shape, a bezel 4B having a sandwiching piece 8 and a rectangular shape, and a rectangular liquid crystal display panel 3B. A crank 9. The liquid crystal display panel 3B is sandwiched between the collar piece 6 and the sandwiching piece 8, and the crank 9 presses the collar piece 6 against the sandwiching piece 8. The backlight chassis 7 is integrally formed as a whole, and after the other parts are attached thereto, the liquid crystal panel 3B is attached thereto. This prevents the liquid crystal display panel 3B from being displaced with respect to the backlight chassis 7 and the bezel 4B while realizing a narrow frame (see, for example, Patent Document 2). Since the backlight chassis 7 and the bezel 4B need to sandwich the liquid crystal display panel 3B, their inner dimensions are set smaller than the outer dimensions of the liquid crystal display panel 3B.

JP 2001-13888 A JP 2009-109691 A

  In the image display devices according to the first and second prior arts, the parts such as the frame 2A, the liquid crystal panel 3A, the backlight chassis 7, and the bezels 4A and 4B are inevitably formed with manufacturing tolerances. . The tolerance becomes larger as the size of the display screen in the image display device is larger. Therefore, in order to perform secure clamping in the first prior art, there is a problem that the difference between the inner dimension of the frame 2A and the bezels 4A and 4B and the outer dimension of the liquid crystal panel cannot be set smaller than the tolerance. is there. Also in the second prior art, in order to perform secure clamping, the difference between the inner dimensions of the backlight chassis 7 and the bezel 4B and the outer dimension of the liquid crystal display panel 3B can be set smaller than the tolerance. However, there is a problem that the narrowing of the frame is limited by the tolerance.

  An object of the present invention is to provide an image display device that can be securely clamped and can be narrowed even if the dimensions of a manufactured liquid crystal panel include tolerances.

The present invention has a liquid crystal element, and a liquid crystal panel for displaying an image on one side by the liquid crystal element;
A base disposed on the other side of the liquid crystal panel;
A frame portion opposed to the outer edge portion of the liquid crystal panel from the one surface side and preventing relative displacement to the one surface side of the liquid crystal panel;
A fixing structure comprising a plurality of members and sandwiching the outer edge portion of the liquid crystal panel together with the frame portion, wherein the plurality of members are opposed to at least a part of the outer edge portion of the liquid crystal panel from the other surface side. A fixed structure including one or a plurality of displacement prevention members having a portion and a contact portion that contacts the outer edge portion from the outside in the surface direction of the liquid crystal panel;
An image display device comprising: a connecting member that connects the displacement preventing member to the base.

In the present invention, the liquid crystal panel is formed in a rectangular plate shape,
The displacement preventing member is in contact with a portion forming at least one side of an outer edge portion of the liquid crystal panel from the outside in the surface direction of the liquid crystal panel.

  Further, in the invention, it is preferable that the portion forming at least one side where the displacement preventing member contacts from the outside in the surface direction of the liquid crystal panel includes one of a pair of end portions forming a short side of the liquid crystal panel. And

  Further, according to the present invention, the portion that forms at least one side with which the displacement prevention member contacts from the outside in the surface direction of the liquid crystal panel has one of a pair of end portions that form the long side of the liquid crystal panel and a short side. One of the pair of end portions formed is included.

Further, in the present invention, the displacement prevention member has an engaging portion that engages with the base,
The base has an engaged portion engaged with the engaging portion,
In a state where the engagement portion engages with the engaged portion and the connection between the base and the displacement prevention member by the connecting member is released, the contact portion uses the engaged portion as a fulcrum. The liquid crystal panel is capable of swinging displacement with respect to the base, and is moved closer to and away from the liquid crystal panel by swinging displacement.

According to the present invention, the connecting member is screwed to the displacement preventing member to connect the displacement preventing member to the base, and the angular displacement with respect to the displacement preventing member is associated with the displacement preventing member. A screw member that moves forward and backward,
The contact portion of the displacement prevention member swings and displaces with respect to the liquid crystal panel as the screw member advances and retreats with respect to the displacement prevention member.

In the present invention, at least a part of the displacement preventing member is formed to be elastically deformable,
The contact portion elastically presses the liquid crystal panel.

  According to the present invention, in the image display device, the fixing structure includes a plurality of members that assist in fixing the liquid crystal panel. The fixed structure is configured to include one or a plurality of displacement prevention members, and the displacement prevention member includes a facing portion and a contact portion. The facing portion faces at least a part of the outer edge portion of the liquid crystal panel from the other surface side. The contact portion contacts the outer edge portion from the outside in the surface direction of the liquid crystal panel. The frame portion faces the outer edge portion of the liquid crystal panel from one surface side, and sandwiches the outer edge portion together with the fixed structure. The connecting member connects the displacement preventing member to the base.

  Accordingly, the liquid crystal panel can be fixed by the fixing structure and the frame portion. Since the fixed structure includes a plurality of members, the positions of the plurality of members can be changed. Therefore, due to the error included in the dimensions of the liquid crystal panel, even if the dimensions of the plurality of liquid crystal panels are individually different within the tolerance range, the plurality of members constituting the fixed structure are separated from each other. Can be arranged according to. In addition, since the displacement prevention member is disposed with its contact portion in contact with the liquid crystal panel, the opposite portion of the displacement prevention member can be securely attached to the outer edge of the liquid crystal panel from the other surface side regardless of the dimensions of the liquid crystal panel. Can be opposed. Thereby, the area of the outer edge portion of the liquid crystal panel facing the facing portion can be made constant regardless of the difference in the dimensions of the liquid crystal panel.

  Therefore, even if the liquid crystal panel includes an error within a tolerance range, the outer edge portion of the liquid crystal panel can be prevented from coming off from the opposing portion of the displacement prevention member, so that the liquid crystal panel is securely fixed. be able to. As a result, it is not necessary to set the size of the facing portion to be larger than the tolerance generated in the dimensions of the liquid crystal panel, so that the size of the facing portion can be set small. Therefore, the area of the outer edge portion of the liquid crystal panel hidden by the facing portion can be set small. Thus, it is possible to securely hold the liquid crystal panel and to realize a narrow frame of the image display device.

  According to the invention, the liquid crystal panel is formed in a rectangular plate shape, and the displacement prevention member contacts at least one side of the outer edge of the liquid crystal panel from the outside in the surface direction of the liquid crystal panel. As a result, at least one side of the liquid crystal panel that comes in contact with the displacement prevention member must prevent displacement regardless of the size of the liquid crystal panel, even if the liquid crystal panel includes an error within the tolerance range. The member can be contacted. Further, since the displacement preventing member is connected to the base by the connecting member, the liquid crystal panel is inserted on the base from the position where the displacement preventing member is to be disposed, and then the displacement preventing member is disposed, and the connecting member is The displacement preventing member can be connected to the base. Therefore, the liquid crystal panel can be easily arranged.

  According to the invention, the portion that forms at least one side with which the displacement prevention member contacts from the outside in the surface direction of the liquid crystal panel includes one of a pair of end portions that form the short side of the liquid crystal panel. As a result, the displacement of the liquid crystal panel can be prevented in a direction where a large error is expected. In a liquid crystal panel, a difference in dimensions that occurs within a tolerance range is likely to be larger in a long side than in a short side. Therefore, the displacement prevention member can efficiently prevent the displacement of the liquid crystal panel with a simple structure as compared with the case where the displacement prevention member prevents the displacement of the liquid crystal panel by contacting only the end portion forming the long side of the liquid crystal panel. .

  The displacement blocking member contacts from the outside in the surface direction of the liquid crystal panel, and the portion forming at least one side is one of a pair of end portions forming a long side of the liquid crystal panel and a pair of end portions forming a short side. One of these. Accordingly, the displacement preventing member can contact both the end portion forming the long side and the end portion forming the short side of the liquid crystal panel regardless of the difference in the size of the liquid crystal panel that occurs within the tolerance range. . Therefore, it is possible to prevent the liquid crystal panel from being displaced in the long side direction and from being displaced in the short side direction.

  Further, since the displacement preventing member is connected to the base by the connecting member, the liquid crystal panel is inserted on the base from the position where the displacement preventing member is to be disposed, and then the displacement preventing member is disposed, and the connecting member is The displacement preventing member can be connected to the base. Therefore, the liquid crystal panel can be moved in the long side direction and inserted on the base, or the liquid crystal panel can be moved in the short side direction and inserted on the base. Thereby, the arrangement of the liquid crystal panel can be facilitated.

  According to the invention, the displacement preventing member has the engaging portion that engages with the base, and the base has the engaged portion that is engaged with the engaging portion. In a state where the engaging portion is engaged with the engaged portion and the connection between the base and the displacement prevention member by the connecting member is released, the contact portion swings relative to the base with the engaged portion as a fulcrum. Dynamic displacement is possible. Further, the contact portion moves toward and away from the liquid crystal panel by swinging and displacing.

  As a result, the apparatus configuration can be simplified as compared with the case where the contact portion is moved closer to and away from the liquid crystal panel by translation of the displacement prevention member with respect to the base. Further, since the displacement preventing member can be brought into contact with the liquid crystal panel using the lever principle, the liquid crystal panel can be firmly fixed.

  Moreover, according to this invention, a connection member has a screw member and a screw member connects a displacement prevention member to a base by screwing together to a displacement prevention member. Further, the screw member advances and retreats with respect to the displacement prevention member in accordance with the angular displacement with respect to the displacement prevention member. The contact portion of the displacement prevention member swings and displaces with respect to the liquid crystal panel as the screw member advances and retreats with respect to the displacement prevention member. Thus, the posture of the displacement preventing member can be adjusted by the degree of screwing of the screw member. Therefore, the relative positions of the liquid crystal panel and the displacement prevention member can be easily changed.

  According to the invention, at least a part of the displacement prevention member is formed to be elastically deformable, and the contact portion elastically presses the liquid crystal panel. Thus, even if the relative position between the displacement prevention member and the liquid crystal panel slightly changes, the displacement prevention member can be prevented from applying an extremely large external force to the liquid crystal panel. Therefore, the liquid crystal panel can be prevented from being damaged due to the displacement of the liquid crystal panel. Further, loosening between the liquid crystal panel and the displacement preventing member can be prevented. Therefore, rattling of the liquid crystal panel and the displacement prevention member can be prevented, and the liquid crystal panel can be stably fixed.

1 is a cross-sectional view of an image display device 10 according to a first embodiment of the present invention. It is a figure showing the structure of the image display apparatus 10 which concerns on 1st Embodiment of this invention. It is process drawing showing the assembly process of the image display apparatus 10 which concerns on 1st Embodiment of this invention. It is sectional drawing showing the assembly process of the image display apparatus 10 which concerns on 1st Embodiment of this invention. It is sectional drawing of the liquid crystal panel 11, the fixed structure 13, and the frame part 16 in 1st Embodiment of this invention. It is sectional drawing of the liquid crystal panel 11, the internal chassis, and the frame part 16 in a comparative example. It is process drawing showing the assembly process of the image display apparatus 10 which concerns on 2nd Embodiment of this invention. It is process drawing showing the assembly process of the image display apparatus 10 which concerns on 3rd Embodiment of this invention. It is sectional drawing of the image display apparatus 10 which concerns on 4th Embodiment of this invention. It is sectional drawing of liquid crystal display device 1A which is an image display apparatus which concerns on a 1st prior art. It is sectional drawing of liquid crystal display device 1B which is an image display apparatus which concerns on a 2nd prior art.

  Hereinafter, a plurality of modes for carrying out the present invention will be described with reference to the drawings. In the following description, parts corresponding to items already described in the forms preceding each form may be denoted by the same reference numerals, and overlapping descriptions may be omitted. When only a part of the configuration is described, the other parts of the configuration are the same as those described in the preceding section. Not only the combination of the parts specifically described in each embodiment, but also the embodiments can be partially combined as long as the combination does not hinder. Moreover, each embodiment is illustrated in order to embody the technique which concerns on this invention, and does not limit the technical scope of this invention. The technical contents according to the present invention can be variously modified within the technical scope described in the claims.

(First embodiment)
FIG. 1 is a cross-sectional view of an image display apparatus 10 according to the first embodiment of the present invention. FIG. 1A illustrates the entire image display device 10, and FIG. 1B illustrates an enlarged cross-sectional view of a portion of the displacement prevention member 21. In FIG. 1, a light source 32 and a lamp holder 42 described later are omitted.

  The image display device 10 according to the first embodiment is a device that displays an image. The image display device 10 includes a liquid crystal panel 11, a chassis 12, a fixed structure 13, a frame portion 16, and a connecting member 17. The liquid crystal panel 11 has a liquid crystal element, and displays an image on the one surface 18 side by the liquid crystal element. The chassis 12 is a base used for fixing the liquid crystal panel 11 and is disposed on the other surface 19 side of the liquid crystal panel 11. The one surface 18 side is the front surface side Z1, and the other surface 19 side is the back surface side.

  The fixing structure 13 includes a plurality of members that assist the fixing of the liquid crystal panel 11. In other words, the fixed structure 13 is configured to be separable. The fixed structure 13 includes one or more displacement prevention members 21, and the displacement prevention member 21 has a facing portion 22 and a contact portion 24. The facing portion 22 faces at least a part of the outer edge portion of the liquid crystal panel 11 when the liquid crystal panel 11 is viewed in the thickness direction Z from the other surface 19 side. The contact portion 24 contacts the outer edge portion from the outside in the surface direction of the liquid crystal panel 11. The frame portion 16 faces the outer edge portion of the liquid crystal panel 11 from the one surface 18 side, and sandwiches the outer edge portion together with the fixed structure 13. Accordingly, the liquid crystal panel 11 is prevented from being displaced relative to the frame portion 16 toward the one surface side. The connecting member 17 connects the displacement preventing member 21 to the chassis 12. In the first embodiment, “opposite” means a state of facing each other regardless of contact or non-contact. For example, it includes a state in which sheet-like members are interposed and face each other.

The liquid crystal panel 11 is formed in a rectangular plate shape, and the displacement prevention member 21 is in contact with the portion that forms at least one side of the outer edge of the liquid crystal panel 11 from the outside in the surface direction of the liquid crystal panel 11. Therefore, in the case where the displacement prevention member 21 is provided on a portion that forms one side, the displacement prevention member 21 can be configured to be separable from the member that forms the fixed structure 13 on the other three sides.
The portion forming at least one side with which the displacement prevention member 21 contacts from the outside in the surface direction of the liquid crystal panel 11 includes one of a pair of end portions 26 forming the short side of the liquid crystal panel 11.

  The displacement prevention member 21 has an engaging portion that engages with the chassis 12, and the chassis 12 has an engaged portion that is engaged with the engaging portion. In a state where the engaging portion is engaged with the engaged portion and the connection between the chassis 12 and the displacement prevention member 21 by the connecting member 17 is released, the contact portion 24 is attached to the chassis 12 with the engaged portion as a fulcrum. On the other hand, it can be swung and displaced. Further, the contact portion 24 is moved toward and away from the liquid crystal panel 11 by swinging and displacing.

  The connecting member 17 has a screw member 28, and the screw member 28 is screwed to the displacement preventing member 21 to connect the displacement preventing member 21 to the chassis 12. Further, the screw member 28 advances and retreats with respect to the displacement prevention member 21 in accordance with the angular displacement with respect to the displacement prevention member 21. The contact portion 24 of the displacement prevention member 21 swings and displaces with respect to the liquid crystal panel 11 as the screw member 28 advances and retreats with respect to the displacement prevention member 21.

  In the first embodiment, the image display device 10 is a device that displays an image on a display screen by outputting image information in a television or a personal computer. The display screen is formed by a liquid crystal panel 11 having liquid crystal elements, and the liquid crystal panel 11 is formed in a flat shape. In the liquid crystal panel 11, two directions in the thickness direction Z are defined as a front side Z1 and a back side Z2.

  The image display device 10 displays the image so as to be visible when viewed from the front side Z1. In the image display device 10, the term “front side” (Z 1) and “back side” (Z 2) are used when the flat parts arranged in parallel with the liquid crystal panel 11 are based on the liquid crystal panel 11. Used to mean the same orientation. In the image display device 10, the frame portion 16 that surrounds the periphery of the liquid crystal panel 11 from the outside in the surface direction has a narrow frame. In the first embodiment, the image display device 10 is a liquid crystal display device in which the diagonal line of the liquid crystal panel 11 is 60 inches and the aspect ratio is 9:16.

  The image display device 10 is configured to include a plurality of light sources 32 disposed on the back side of the liquid crystal panel 11, and the plurality of light sources 32 are attached to the chassis 12. The light emitted from the light source 32 is emitted to the front side of the liquid crystal device through the liquid crystal panel 11 and used as display light for displaying an image. The frame portion 16 forms a part of a housing that houses the liquid crystal panel 11, the chassis 12, the fixed structure 13, the connecting member 17, and the light source 32.

  FIG. 2 is a diagram illustrating the configuration of the image display apparatus 10 according to the first embodiment of the present invention. FIG. 3 is a process diagram showing an assembly process of the image display apparatus 10 according to the first embodiment of the present invention. In the first embodiment, the housing includes a frame portion 16 and a back side member that forms the housing together with the frame portion 16. The frame portion 16 is disposed so as to extend outward in the surface direction of the liquid crystal panel 11 when viewed from the front side Z1, and defines the internal space by the frame portion 16 alone or together with the back side member. In FIG. 2, the image display device 10 is illustrated with the back side member omitted.

  The frame 16 and the liquid crystal panel 11 are formed in a rectangular shape when the image display device 10 is viewed from the front side Z1. In a normal posture when the image display device 10 displays an image, the rectangle may be placed vertically or horizontally, but is placed horizontally in the first embodiment. The frame portion 16 includes a flat plate portion 36 perpendicular to the thickness direction Z and an outer peripheral portion 37 that surrounds the liquid crystal panel 11 from the outside in the surface direction. The flat plate portion 36 holds the liquid crystal panel 11 together with the fixed structure 13.

  The liquid crystal panel 11 includes two substrates 11a and is formed in a rectangular plate shape when viewed in the thickness direction Z. The liquid crystal panel 11 includes a switching element such as a TFT (thin film transistor), and liquid crystal is injected into a gap between the two substrates 11a. The liquid crystal display panel exhibits a display function when light from the light source 32 on the back side is irradiated as a backlight. The two substrates 11 a are provided with a driver (source driver) for controlling driving of pixels in the liquid crystal panel 11, various elements, and wiring.

  The fixed structure 13 is disposed on the back side of the liquid crystal panel 11 and on the front side of the chassis 12 and is attached to the chassis 12. Details of the structure of the fixed structure 13 will be described later. An optical sheet 40, a diffusion sheet 41, a lamp holder 42, a light source 32, and a reflection sheet 43 are disposed between the fixed structure 13 and the chassis 12. The light source 32 includes a plurality of fluorescent tubes 38, and the fluorescent tubes 38 are attached to the chassis 12 by a lamp holder 42. A diffusion sheet 41 is disposed on the front side of the fluorescent tube 38, and an optical sheet 40 is disposed on the front side of the diffusion sheet 41. The diffusion sheet 41 and the optical sheet 40 are arranged in parallel to the liquid crystal panel 11.

  The diffusion sheet 41 prevents the brightness from being locally biased by diffusing the light emitted from the fluorescent tube 38 in the surface direction. The optical sheet 40 directs the traveling direction of light reaching from the back side through the diffusion sheet 41 to the front side. In the diffusion sheet 41, in order to prevent the luminance from being biased in the surface direction, the traveling direction of light includes many components in the surface direction as vector components. On the other hand, the optical sheet 40 converts the traveling direction of light including a large amount of vector components in the surface direction into the traveling direction of light including a large amount of components in the thickness direction Z. Specifically, the optical sheet 40 is formed with a large number of lens or prism-shaped portions arranged side by side in the surface direction, thereby reducing the degree of diffusion of light traveling in the thickness direction Z. Therefore, the luminance can be increased in the display by the image display device 10.

  The chassis 12 includes a flat bottom 39 that is perpendicular to the thickness direction Z, a side wall 44 that is continuous with the bottom 39 and rises from the bottom 39, and a part of the side wall 44 that is opposite to the part where the bottom 39 is continuous. And a flat plate-like flange portion 45 extending in parallel. The bottom 39 is formed in a rectangular shape when viewed in the thickness direction Z. The side wall portion 44 is formed to rise from the two end portions 26 forming the short side and the two end portions 27 forming the long side to the front side. As a result, four flat side wall portions 44 are formed around the bottom portion 39.

  Each side wall 44 is formed in a strip shape and is parallel to the thickness direction Z of the bottom 39. A flange portion 45 is connected to the end portion on the most front side of the side wall portion 44. The flange portion 45 is formed to extend outward in the surface direction from the bottom portion 39 when viewed in the thickness direction Z. The flange portion 45 is formed in an elongated strip shape perpendicular to the thickness direction Z of the bottom portion 39. As a result, four flange portions 45 are formed in the same manner as the side wall portions 44. Therefore, the four flange portions 45 are formed in a rectangular shape when viewed in the thickness direction Z.

  “Vertical” includes both ideal vertical and substantially vertical, and “parallel” includes both ideal parallel and substantially parallel. The liquid crystal panel 11, the bottom 39 of the chassis 12, and the flange portion 45 are all formed in a rectangle when viewed in the thickness direction Z of the liquid crystal panel 11, and the long side directions X are parallel to each other. They are parallel to each other.

  In the first embodiment, a collar portion 46 that protrudes further to the front surface side is formed from an end portion of the flange portion 45 that is opposite to the end portion where the side wall portions 44 are continuous and located outwardly in the surface direction with respect to the bottom portion 39. Is done. The collar portion 46 is formed in a strip shape parallel to the thickness direction Z. The collar portion 46 is formed to correspond to the three flange portions 45 among the four flange portions 45. In 1st Embodiment, the collar part 46 is formed corresponding to one of the two flange parts 45 which comprise a short side, and the two flange parts 45 which comprise a long side. The collar portion 46 is not provided in the other one of the two flange portions 45 forming the short side.

  The reflection sheet 43 is disposed in contact with at least a part of the front surface of the bottom 39 and the flange 45. The reflection sheet 43 may be disposed in contact with the side wall portion 44 or may be disposed without contact. The surface facing at least the front side of the reflection sheet 43 has a high reflectance with respect to the light from the light source 32, ideally a reflectance of 100%.

  A plurality of fluorescent tubes 38 are arranged close to the front side with respect to the bottom 39 and the reflection sheet 43 arranged on the front side of the bottom 39. Each fluorescent tube 38 is installed extending in the long side direction X of the bottom 39. The lamp holder 42 fixes both ends in the longitudinal direction of the plurality of fluorescent tubes 38 to the chassis 12. The lamp holder 42 arranged on one side in the longitudinal direction of the fluorescent tube 38 and the lamp holder 42 arranged on the other side in the longitudinal direction are generally formed in a rectangular parallelepiped, and the surface facing the front side of the rectangular parallelepiped has a thickness. It is arranged perpendicular to the direction Z.

  Each lamp holder 42 is disposed inside the side wall portion 44, and the surface facing the front side of each lamp holder 42 is disposed in one plane together with the surface facing the front side of the flange portion 45. The outer edge portion of the diffuser plate is arranged in contact with it. The liquid crystal panel 11, the fixed structure 13, the optical sheet 40, the diffusion sheet 41, the lamp holder 42, the fluorescent tube 38, the reflection sheet 43, and the chassis 12 are inward in the plane direction with respect to the liquid crystal panel 11 rather than the outer peripheral portion 37 of the frame portion. Be placed.

  In the first embodiment, the fixing structure 13 includes a displacement prevention member 21 and a fitting fixing member 48 that is fitted and fixed to the chassis 12. The fitting fixing member 48 is fitted and fixed at least to the collar portion 46 of the chassis 12. In the first embodiment, the fitting fixing member 48 includes a fitting portion 51 in which a concave groove 49 into which the collar portion 46 is inserted is formed, and a flat portion 52 that is continuous with the fitting portion 51 and covers the front side of the flange portion 45. And an inner portion 54 that covers the side wall portion 44 of the chassis 12 from the inner peripheral surface side.

  The front surface side of the fitting portion 51 faces the front surface side and faces the outer edge portion of the liquid crystal panel 11, and protrudes to the front surface side outward in the surface direction from the facing portion 22, and faces the liquid crystal panel 11 in the surface direction. The contact part 24 which contacts from the outside is formed. The facing portion 22 is a portion that sandwiches the outer edge portion of the liquid crystal panel 11 together with the flat portion 36 of the frame portion 16. Therefore, it is necessary for the facing portion 22 to surely face the outer edge portion of the liquid crystal panel 11, and as the facing portion 22 is set as thin as possible, the narrower the frame, the easier it is to realize a narrow frame. be able to.

  With respect to the facing portion 22 that contacts the end portion that forms each side of the liquid crystal panel 11, the dimension of the facing portion 22 in the direction perpendicular to both the thickness direction Z and each side is referred to as a “width dimension”. As an example of the image display device 10, for example, in the case of a 60-inch image display device 10, the image display area of the liquid crystal panel 11 is approximately 133 cm in the long side direction X and approximately 75 cm in the short side direction Y. It is. In this case, the width dimension of the facing portion 22 is set to about 3 mm.

  The fitting fixing member 48 is integrally formed in a shape that forms three sides of a rectangle corresponding to the three sides having the collar portion 46. Accordingly, the front end of the inner portion 54 is formed continuously with the inner end of the flat portion 52 in the surface direction. The inner portion 54 includes three flat portions parallel to the thickness direction Z of the liquid crystal panel 11, and one or a plurality of through holes 53 are formed in each flat portion. In the through hole 53, the connecting member 17 realized by the screw member 28 is inserted vertically into each flat plate portion.

  The displacement prevention member 21 is provided corresponding to a portion of the four flange portions 45 where the collar portion 46 is not provided. Therefore, the displacement prevention member 21 is formed by forming one side out of four sides forming a rectangle. The displacement prevention member 21 is provided to be angularly displaceable with a part of the flange portion 45 as a fulcrum. A portion serving as a fulcrum when the displacement preventing member 21 is angularly displaced is formed in the flange portion 45 where the collar portion 46 is not provided. Specifically, a recess 56 is formed at one or a plurality of positions, and a part of the displacement prevention member 21 is engaged therewith.

  The displacement prevention member 21 covers the front surface side of the flange portion 45, and is connected to the fulcrum contact portion 57 that contacts a portion of the flange portion 45 that serves as a fulcrum of angular displacement, and the fulcrum contact portion 57. It includes a connected portion 58 that covers from the inner peripheral surface side and is connected to the chassis 12 by the connecting member 17, and an angular displacement portion 62 that is formed to rise from the flat portion 52 to the front side.

  The fulcrum contact portion 57 includes a flat plate portion 59 that is parallel to the bottom 39 of the chassis 12 and a projection 63 that protrudes from the flat portion 59 to the back side. The protruding portion 63 is an engaging portion that engages with the recessed portion 56 formed in the flange portion 45, and the recessed portion 56 formed in the flange portion 45 is engaged with the protruding portion 63 formed in the displacement preventing member 21. The engaged portion. As a result, the displacement prevention member 21 can swing around the concave portion 56 of the flange portion 45 as a fulcrum. The reflection sheet 43 may be disposed so as to cover the concave portion 56 of the flange portion 45, and a hole may be formed at the position of the concave portion 56 of the flange portion 45. The protrusion 63 of the displacement prevention member 21 is engaged with the recess 56 of the flange 45 via the reflection sheet 43 or directly.

  When the projection 63 of the displacement prevention member 21 is engaged with the concave portion 56 of the flange 45 and the connection by the connection member 17 is not performed, the displacement prevention member 21 can be angularly displaced. In the first embodiment, since the displacement preventing member 21 is provided by engaging with the flange portion 45 having the short side among the rectangular flange portions 45, the displacement preventing member 21 has an angular displacement extending in the short side direction Y. Angular displacement is possible around the axis.

  In the displacement prevention member 21, the connected portion 58 is formed in parallel with the thickness direction Z of the liquid crystal panel 11, and is connected to an end portion of the fulcrum contact portion 57 that is inward in the surface direction with respect to the liquid crystal panel 11 and extends to the back side. Formed. A recess is formed in the connected portion 58, and a female screw is formed in the recess. The recess is formed without penetrating the coupled portion 58. This prevents light from passing through the coupled portion 58.

  In the angular displacement part 62, the connected part 58 is formed in parallel with the thickness direction Z of the liquid crystal panel 11, and is connected to the outer end of the fulcrum contact part 57 in the surface direction with respect to the liquid crystal panel 11 and extends to the front side. Formed. The front face side of the angular displacement part 62 faces the front face side and faces the outer edge part of the liquid crystal panel 11, and protrudes to the front face side in the surface direction outward from the facing part 22, and faces the liquid crystal panel 11 in the surface direction. The contact part 24 which contacts from the outside is formed. The facing portion 22 of the displacement prevention member 21 is also a portion that sandwiches the outer edge portion of the liquid crystal panel 11 together with the flat plate portion 36 of the frame portion 16. Therefore, it is necessary for the facing portion 22 to surely face the outer edge portion of the liquid crystal panel 11, and as the facing portion 22 is set as thin as possible, the narrower the frame, the easier it is to realize a narrow frame. be able to.

  In the thickness direction Z of the liquid crystal panel 11, the dimension of the contact portion 24 is set to be substantially the same and slightly smaller than the thickness dimension of the liquid crystal panel 11. This prevents the flat plate member of the frame portion 16 from coming into contact with the front side of the outer edge portion of the liquid crystal panel 11 and holding the liquid crystal panel 11 together with the facing portion 22 from shaking the liquid crystal panel 11 in the thickness direction Z. be able to.

  FIG. 4 is a cross-sectional view illustrating an assembly process of the image display apparatus 10 according to the first embodiment of the present invention. When assembling the image display device 10, first, as shown in FIGS. 3A and 4A, the fitting fixing member 48 is fitted to the chassis 12. This is performed by inserting the collar portion 46 of the chassis 12 into the concave groove 49 formed in the fitting portion 51. In this state, the displacement preventing member 21 is not yet disposed at the position where the displacement preventing member 21 is to be disposed. Next, as shown in FIG. 3B and FIG. 4B, the liquid crystal panel 11 is placed in contact with the facing portion 22 of the fitting and fixing member 48. Although this may be performed from the front side, it can also be arranged by inserting the liquid crystal panel 11 from the position where the displacement prevention member 21 is to be arranged.

  Next, as shown in FIGS. 3C and 4C, the displacement prevention member 21 is disposed. This engages the engaging portion of the displacement prevention member 21 with the engaged portion of the flange portion 45 and angularly displaces it, thereby bringing the contact portion 24 close to and in contact with the liquid crystal panel 11. Thus, even if there is an error in the dimensions of the liquid crystal panel 11 within the tolerance range, the contact portion 24 always comes into contact with the liquid crystal panel 11 from the outside in the plane direction due to the angular displacement of the displacement prevention member 21. Thus, the facing portion 22 of the displacement prevention member 21 faces the outer edge portion of the liquid crystal panel 11. Therefore, the opposing portion 22 and the frame portion 16 can sandwich the outer edge portion of the liquid crystal panel 11 having a predetermined area.

  Next, as shown in FIG. 3D and FIG. 4D, the connected portion 58 of the displacement preventing member 21 is connected to the inner portion 54 of the chassis 12 by the connecting member 17. Since this is realized by screwing of the screw member 28, the distance between the connected portion 58 and the inner portion 54 of the chassis 12 is adjusted by adjusting the degree of angular displacement of the screw member 28. However, the connecting member 17 is not limited to the screw member 28. For example, in another embodiment, the connecting member 17 may be realized by fitting the displacement preventing member 21 and the chassis 12, or may be realized by bonding the displacement preventing member 21 and the chassis 12. FIG. 3 shows a case where the number of connecting members 17 on the short side is four. However, the number of through holes 53 in the connecting member 17 and the inner portion 54 of the chassis 12 is not limited to this. .

  FIG. 5 is a cross-sectional view of the liquid crystal panel 11, the fixed structure 13, and the frame portion 16 in the first embodiment of the present invention. In FIG. 5, the vicinity of the end portion is illustrated in an enlarged manner, and only the members when the fixed structure 13 and the frame portion 16 have dimensions as set in advance are hatched.

In the predetermined direction P, the set dimension set as the dimension of the liquid crystal panel 11 is “L0”, and the tolerance added to the dimension of the liquid crystal panel 11 in this direction P is “± L1”. This predetermined direction P may be, for example, one of the long side direction X and the short side direction Y. In the present invention, the width dimension of the contact portion 24 of the fixed structure 13 arranged outside in the surface direction of the liquid crystal panel 11 is “x”. Since the fixed structure 13 can be arranged in contact with the liquid crystal panel 11, the actual dimension “D1” including the liquid crystal panel 11 and the fixed structure 13 is
D1 = L0 + 2x ± L1 (1)
It becomes. Therefore, if the minimum value and the maximum value of D1 are “D1min” and “D1Max”, respectively,
D1min = L0 + 2x−L1 (2)
D1Max = L0 + 2x + L1 (3)
It becomes.

The tolerance added to the inner dimension of the frame portion 16 arranged on the outer side in the plane direction than the liquid crystal panel 11 and the fixed structure 13 is “± L2”, and the actual inner dimension of the frame portion 16 in the present invention is “D2”. " Even when D1 is “D1Max” and a negative tolerance is added to the dimension of the frame portion 16, the frame portion 16 can be disposed outside the liquid crystal panel 11 and the fixed structure 13. Because you have to
D2 = D1Max + L2 ± L2
= L0 + 2x + L1 + L2 ± L2 (4)
It becomes. When the minimum value and the maximum value of the actual inner dimension of the frame part 16 are “D2min” and “D2Max”, respectively, by designing the dimension of the frame part 16 according to the equation (4),
D2min = L0 + 2x + L1 = D1Max (5)
D2Max = L0 + 2x + L1 + 2 · L2 (6)
Is established. Therefore, the frame portion 16 can be disposed outside the liquid crystal panel 11 and the fixed structure 13 regardless of the value of the dimensional error of the liquid crystal panel 11 and the frame portion 16 within a tolerance range. .

  FIG. 6 is a cross-sectional view of the liquid crystal panel 11, the internal chassis, and the frame portion 16 in the comparative example. In FIG. 6, the vicinity of the end portion is illustrated in an enlarged manner, and only the members when the dimensions of the respective members are as set in advance are shown with hatching.

In the comparative example, regarding the internal chassis disposed outside the liquid crystal panel 11 in the surface direction, the tolerance added to the internal dimension is “± L3”, and the actual internal dimension of the internal chassis is “D3”. The internal chassis needs to be arranged outside the liquid crystal panel 11 even when the size of the liquid crystal panel 11 is “L0 + L1”.
D3 = L0 + L1 + L3 ± L3 (7)
It becomes.

In the comparative example, if the width dimension of the outer edge of the internal chassis is “y”, the actual dimension “D4” including the liquid crystal panel 11 and the outer edge of the internal chassis is:
D4 = L0 + 2y + L1 + L3 ± L3 (8)
It becomes. Therefore, if the minimum value and the maximum value of D4 are “D4min” and “D4Max”, respectively,
D4min = L0 + 2y + L1 + L3-L3 (9)
D4Max = L0 + 2y + L1 + L3 + L3 (10)
It becomes. If the actual inner size of the frame portion 16 in the comparative example is “D5”, it is necessary that the frame portion 16 can be arranged even when the D4 is “D4Max”.
D5 = L0 + 2y + L1 + L3 + L3 + L2 ± L2 (11)
It becomes.

When the difference between the inner dimension of the frame portion 16 in the comparative example and the inner dimension of the frame portion 16 in the present invention is determined by subtracting both sides of the equation (4) from both sides of the equation (11),
D5−D2 = 2 (y−x) + 2 · L3 (12)
It becomes. When the width dimension x of the contact portion 24 of the fixed structure 13 and the width dimension y of the outer edge portion of the internal chassis are the same (x = y),
D5-D2 = 2 · L3 (13)
It becomes. Therefore, in the present invention, the length of “2 · L3” and the size of the frame portion 16 can be reduced.

  In the comparative example, the dimensions of the internal chassis must be designed including the tolerance of the liquid crystal panel 11 and the tolerance of the internal chassis, and the dimensions of the frame portion 16 are the same as the tolerance of the liquid crystal panel 11, the tolerance of the internal chassis, and the frame portion. The design must include 16 tolerances. On the other hand, in the present invention, it is not necessary to set the dimension of the frame portion 16 to a dimension including the tolerance of the fixed structure 13, and it is sufficient to design the tolerance of the liquid crystal panel 11 and the tolerance of the frame portion 16. Accordingly, the size of the frame portion 16 can be reduced.

Further, in the frame portion 16, the width dimension w of the facing portion facing the outer edge portion of the liquid crystal panel 11 is such that the size of the liquid crystal panel 11 is “L0−L1” and the inner dimension D5 of the frame portion 16 is D5 = L0 + 2y + L1 + 2 · L3. …(14)
Since it is necessary to face the outer edge portion of the liquid crystal panel 11 also when, the width dimension w of the facing portion of the frame portion 16 is
w> 2 · L1 + y + 2 · L3 + L2 (15)
It is necessary to set to a value that satisfies. In the present invention, the width dimension w of the facing portion of the frame portion 16 can be shortened by “2 · L3” as compared with the comparative example, and the frame can be narrowed.

  According to the first embodiment, in the image display device 10, the fixing structure 13 includes a plurality of members that assist in fixing the liquid crystal panel 11. The fixed structure 13 includes a displacement prevention member 21, and the displacement prevention member 21 has a facing portion 22 and a contact portion 24. The facing portion 22 faces at least a part of the outer edge portion of the liquid crystal panel 11 from the other surface 19 side. The contact portion 24 contacts the outer edge portion from the outside in the surface direction of the liquid crystal panel 11. The frame portion 16 faces the outer edge portion of the liquid crystal panel 11 from the one surface 18 side, and sandwiches the outer edge portion together with the fixed structure 13. The connecting member 17 connects the displacement preventing member 21 to the chassis 12.

  Accordingly, the liquid crystal panel 11 can be fixed by the fixing structure 13 and the frame portion 16. Since the fixed structure 13 includes a plurality of members, the positions of the plurality of members can be changed. Therefore, even if the dimension of the liquid crystal panel 11 includes an error and the dimensions of the plurality of liquid crystal panels 11 are individually different within a tolerance range, the plurality of members constituting the fixed structure 13 can be separated from each liquid crystal. It can arrange | position according to the dimension of the panel 11. FIG.

  In most cases, the size of the liquid crystal panel 11 includes an error from the target value. A tolerance is set for the error. When the support member that supports the liquid crystal panel 11 from the back side is integrally formed with respect to all four sides of the rectangle as in the prior art, the size of the support member also includes an error. In the prior art, even if the error included in the dimensions of both the liquid crystal panel 11 and the support member includes both positive and negative errors within the tolerance, the liquid crystal panel 11 is reliably supported by the support member. In order to achieve this, it is necessary to set the area of the portion where the liquid crystal panel 11 and the support member face each other to a dimension equal to or larger than the tolerance.

  On the other hand, the displacement prevention member 21 is arranged with its contact portion 24 in contact with the liquid crystal panel 11, so that the opposing portion 22 of the displacement prevention member 21 is placed on the liquid crystal panel 11 regardless of the dimensions of the liquid crystal panel 11. The outer edge can be reliably opposed from the other surface 19 side. Accordingly, the area of the outer edge portion of the liquid crystal panel 11 facing the facing portion 22 can be made constant regardless of the difference in the dimensions of the liquid crystal panel 11.

  Therefore, even if the dimension of the liquid crystal panel 11 includes an error within a tolerance range, the outer edge portion of the liquid crystal panel 11 can be prevented from being disengaged from the facing portion 22 of the displacement prevention member 21. Fixing can be performed reliably. Thereby, since it is not necessary to set the dimension of the opposing part 22 to be larger than the tolerance generated in the dimension of the liquid crystal panel 11, the dimension of the opposing part 22 can be set small. Therefore, the area of the outer edge portion of the liquid crystal panel 11 hidden by the facing portion 22 can be set small. As a result, the liquid crystal panel 11 can be securely clamped and the frame of the image display device 10 can be reduced.

  In addition, according to the first embodiment, the liquid crystal panel 11 is formed in a rectangular plate shape, and the displacement prevention member 21 is formed on the portion that forms at least one side of the outer edge of the liquid crystal panel 11 from the outside in the surface direction of the liquid crystal panel 11. Contact. As a result, the portion of at least one side of the liquid crystal panel 11 with which the displacement prevention member 21 comes into contact does not depend on the size of the liquid crystal panel 11 even when the size of the liquid crystal panel 11 includes an error within a tolerance range. The displacement preventing member 21 can always be brought into contact. Further, since the displacement preventing member 21 is connected to the chassis 12 by the connecting member 17, the liquid crystal panel 11 is inserted on the chassis 12 from the position where the displacement preventing member 21 is to be disposed, and then the displacement preventing member 21 is disposed. The displacement preventing member 21 can be connected to the chassis 12 by the connecting member 17. Therefore, the liquid crystal panel 11 can be easily arranged.

  In addition, according to the first embodiment, the portion that forms at least one side with which the displacement prevention member 21 contacts from the outside in the surface direction of the liquid crystal panel 11 is the one of the pair of end portions 26 that forms the short side of the liquid crystal panel 11. Including one. In other words, the displacement prevention member 21 comes into contact with the outer edge of the liquid crystal panel 11 from the outside in the surface direction to at least one of the pair of end portions 26 forming the short side. As a result, the displacement of the liquid crystal panel 11 can be prevented in a direction where a large error is expected. In the liquid crystal panel 11, as for the difference in dimensions that occurs within the tolerance range, the difference in the long side is likely to be larger than the difference in the short side. Therefore, the displacement prevention member 21 can efficiently displace the liquid crystal panel 11 with a simple structure as compared with the case where the displacement prevention member 21 contacts only the end portion 27 that forms the long side of the liquid crystal panel 11 to prevent the displacement of the liquid crystal panel 11. Can be prevented.

  Further, according to the first embodiment, the displacement prevention member 21 has an engaging portion that engages with the chassis 12, and the chassis 12 has an engaged portion that is engaged with the engaging portion. In a state where the engaging portion is engaged with the engaged portion and the connection between the chassis 12 and the displacement prevention member 21 by the connecting member 17 is released, the contact portion 24 is attached to the chassis 12 with the engaged portion as a fulcrum. On the other hand, it can be swung and displaced. Further, the contact portion 24 is moved toward and away from the liquid crystal panel 11 by swinging and displacing.

  As a result, the apparatus configuration can be simplified as compared with the case where the contact portion 24 is moved closer to and away from the liquid crystal panel 11 by translation of the displacement prevention member 21 with respect to the chassis 12. Further, since the displacement preventing member 21 can be brought into contact with the liquid crystal panel 11 using the lever principle, the liquid crystal panel 11 can be firmly fixed.

  Further, according to the first embodiment, the connecting member 17 has the screw member 28, and the screw member 28 is engaged with the displacement preventing member 21 to connect the displacement preventing member 21 to the chassis 12. Further, the screw member 28 advances and retreats with respect to the displacement prevention member 21 in accordance with the angular displacement with respect to the displacement prevention member 21. The contact portion 24 of the displacement prevention member 21 swings and displaces with respect to the liquid crystal panel 11 as the screw member 28 advances and retreats with respect to the displacement prevention member 21. Thereby, the posture of the displacement prevention member 21 can be adjusted by the degree of screwing of the screw member 28. Therefore, the relative positions of the liquid crystal panel 11 and the displacement prevention member 21 can be easily changed.

(Second Embodiment)
FIG. 7 is a process diagram illustrating an assembly process of the image display apparatus 10 according to the second embodiment of the present invention. The image display device 10 according to the second embodiment is similar to the image display device 10 according to the first embodiment, and hereinafter, description will be made focusing on differences between the second embodiment and the first embodiment. In the second embodiment, the displacement prevention member 21 comes into contact with both of the pair of end portions 26 forming the short side from the outer side in the surface direction among the outer edge portions of the liquid crystal panel 11.

  A collar portion 46 formed on the chassis 12 is provided corresponding to two sides corresponding to both of the rectangular flange portions 45. The fitting fixing member 48 is formed corresponding to the side where the collar portion 46 is formed. A total of two fitting and fixing members 48 formed corresponding to these two sides are formed, one for each side.

  In the assembly process, the fitting and fixing member 48 is first installed on the chassis 12, and then the liquid crystal panel 11 is arranged from the position where the displacement prevention member 21 is to be arranged or from the front side. Next, the displacement prevention member 21 is disposed, and then the displacement prevention member 21 is connected to the chassis 12 by the connecting member 17. Although FIG. 7 illustrates the case where the number of connecting members 17 on the short side is four, the number of through holes 53 in the connecting member 17 and the inner portion 54 of the chassis 12 is not limited to this.

(Third embodiment)
FIG. 8 is a process diagram showing an assembly process of the image display apparatus 10 according to the third embodiment of the present invention. The image display device 10 according to the third embodiment is similar to the image display device 10 according to the first embodiment, and hereinafter, description will be made focusing on differences between the third embodiment and the first embodiment. In the third embodiment, the portion that constitutes at least one side with which the displacement prevention member 21 contacts from the outside in the surface direction of the liquid crystal panel 11 is one of a pair of end portions 27 that constitute the long side of the liquid crystal panel 11; One of a pair of end portions 26 forming a short side.

  The collar portion 46 formed on the chassis 12 includes a rectangular flange portion 45 and one of a pair of flange portions 45 having a long side and one of a pair of flange portions 45 having a short side. Correspondingly, they are provided corresponding to two sides. The fitting fixing member 48 is formed corresponding to the side where the collar portion 46 is formed. Although the fitting and fixing members 48 formed corresponding to these two sides may be formed integrally, in the third embodiment, one fitting and fixing member 48 is provided corresponding to each side. A total of two are formed each.

  In the assembly process, the fitting and fixing member 48 is first installed on the chassis 12, and then the liquid crystal panel 11 is arranged from the position where the displacement prevention member 21 is to be arranged or from the front side. Next, the displacement prevention member 21 is disposed, and then the displacement prevention member 21 is connected to the chassis 12 by the connecting member 17. Although FIG. 8 illustrates a case where there are four connecting members 17 on the short side and five connecting members 17 on the long side, the through holes 53 in the connecting member 17 and the inner portion 54 of the chassis 12 are illustrated. The number of is not limited to this.

  In the third embodiment, the displacement prevention member 21 comes into contact with at least one of the pair of end portions 26 forming the short side from the outer side in the surface direction among the outer edge portions of the liquid crystal panel 11. Further, at least one of the pair of end portions 27 forming the long side is in contact with the outside in the surface direction. Accordingly, the displacement prevention member 21 contacts both the end portion 27 that forms the long side and the end portion 26 that forms the short side of the liquid crystal panel 11 regardless of the difference in dimensions of the liquid crystal panel 11 that occurs within a tolerance range. Can be Accordingly, it is possible to prevent the liquid crystal panel 11 from being displaced in the long side direction X and from being displaced in the short side direction Y.

  Further, since the displacement preventing member 21 is connected to the chassis 12 by the connecting member 17, the liquid crystal panel 11 is inserted on the chassis 12 from the position where the displacement preventing member 21 is to be disposed, and then the displacement preventing member 21 is disposed. The displacement preventing member 21 can be connected to the chassis 12 by the connecting member 17. Therefore, it is possible to move the liquid crystal panel 11 in the long side direction X and insert it on the chassis 12, or move it in the short side direction Y and insert it on the chassis 12. Thereby, the arrangement of the liquid crystal panel 11 can be facilitated.

(Fourth embodiment)
FIG. 9 is a cross-sectional view of an image display apparatus 10 according to the fourth embodiment of the present invention. The image display device 10 according to the fourth embodiment is similar to the image display device 10 according to the first embodiment, and hereinafter, description will be made focusing on differences between the fourth embodiment and the first embodiment. In the fourth embodiment, at least a part of the displacement prevention member 21 is formed to be elastically deformable, and the contact portion 24 elastically presses the liquid crystal panel 11.

  The portion of the displacement prevention member 21 that is formed to be elastically deformable includes a portion between the contact portion 24 and the connected portion 58 that is connected and fixed to the chassis 12 by the connecting member 17. In the fourth embodiment, the entire displacement prevention member 21 is formed of an elastically deformable material. For example, the liquid crystal panel 11 can be elastically pressed by the contact portion 24 by being formed of a metal material used for manufacturing a leaf spring. The pressing force is preferably set to a small force that does not damage the liquid crystal panel 11, and it is preferable to always urge the liquid crystal panel 11 even when the liquid crystal panel 11 is displaced.

  Further, in the fourth embodiment, in the rectangle when the liquid crystal panel 11 is viewed in the thickness direction Z, the fitting fixing member 48 is connected to the chassis by the screw member 28 at the side that is paired with the side where the displacement prevention member 21 is disposed. 12 is attached. Thereby, it is possible to firmly fix the side that forms a pair with the side where the displacement preventing member 21 is arranged against the elastic biasing by the displacement preventing member 21. Therefore, even when a resilient urging over a long period of time occurs, it is possible to prevent the occurrence of a positional shift due to the urging.

  Moreover, even if the relative position between the displacement prevention member 21 and the liquid crystal panel 11 slightly changes by the elastic biasing, the displacement prevention member 21 exerts an extremely large external force on the liquid crystal panel 11. Giving can be prevented. Therefore, the liquid crystal panel 11 can be prevented from being damaged due to the displacement of the liquid crystal panel 11. Further, loosening between the liquid crystal panel 11 and the displacement prevention member 21 can be prevented. Therefore, rattling of the liquid crystal panel 11 and the displacement prevention member 21 can be prevented, and the liquid crystal panel 11 can be stably fixed.

DESCRIPTION OF SYMBOLS 10 Image display apparatus 11 Liquid crystal panel 12 Chassis 13 Fixed structure 16 Frame part 17 Connection member 18 One side 19 Other side 21 Displacement prevention member 22 Opposite part 24 Contact part

Claims (7)

A liquid crystal panel having a liquid crystal element and displaying an image on one side by the liquid crystal element;
A base disposed on the other side of the liquid crystal panel;
A frame portion opposed to the outer edge portion of the liquid crystal panel from the one surface side and preventing relative displacement to the one surface side of the liquid crystal panel;
A fixing structure comprising a plurality of members and sandwiching the outer edge portion of the liquid crystal panel together with the frame portion, wherein the plurality of members are opposed to at least a part of the outer edge portion of the liquid crystal panel from the other surface side. A fixed structure including one or a plurality of displacement prevention members having a portion and a contact portion that contacts the outer edge portion from the outside in the surface direction of the liquid crystal panel;
An image display device comprising: a connecting member that connects the displacement preventing member to the base. The liquid crystal panel is formed in a rectangular plate shape,
2. The image display device according to claim 1, wherein the displacement preventing member is in contact with a portion forming at least one side of an outer edge portion of the liquid crystal panel from an outer side in a surface direction of the liquid crystal panel.   3. The portion that forms at least one side with which the displacement prevention member contacts from the outside in the surface direction of the liquid crystal panel includes one of a pair of end portions that form a short side of the liquid crystal panel. The image display device described in 1.   The portion that forms at least one side with which the displacement prevention member contacts from the outside in the surface direction of the liquid crystal panel is one of a pair of end portions that form a long side of the liquid crystal panel and a pair of end portions that form a short side. 4. The image display device according to claim 2, further comprising: The displacement prevention member has an engaging portion that engages with the base,
The base has an engaged portion engaged with the engaging portion,
In a state where the engagement portion engages with the engaged portion and the connection between the base and the displacement prevention member by the connecting member is released, the contact portion uses the engaged portion as a fulcrum. 5. The image display according to claim 1, wherein the image display is swingable and displaceable with respect to the base, and is moved toward and away from the liquid crystal panel by the rocking displacement. apparatus. The connecting member is screwed into the displacement preventing member to connect the displacement preventing member to the base, and is a screw member that advances and retreats with respect to the displacement preventing member with an angular displacement with respect to the displacement preventing member. Have
The image display device according to claim 5, wherein the contact portion of the displacement prevention member swings and displaces with respect to the liquid crystal panel as the screw member advances and retreats with respect to the displacement prevention member. At least a part of the displacement prevention member is formed to be elastically deformable,
The image display apparatus according to claim 1, wherein the contact portion elastically presses the liquid crystal panel.

Images