JP6321476B2 - Image display device - Google Patents

Description

  The present invention relates to an image display device including an image display unit capable of displaying an image on an image display surface and a stand placed on a placement surface.

  In thin image display devices such as liquid crystal displays and liquid crystal televisions, the image display unit can be tilted and rotated in the front-rear direction between a standing posture and a tilted posture in order to obtain an easy-to-see tilt angle, and vertically long. In some cases, the image display unit is supported by a stand so that the image display unit can be rotated in a plane parallel to the image display surface for switching between the arrangement and the horizontally long arrangement.

  In such an image display device, when the image display unit is pivoted while standing, depending on the height at which the image display unit is disposed, the image display unit comes into contact with a lower surface such as a mounting surface or a stand base unit. There was a thing. In order to avoid such contact, it is necessary for the user to intentionally rotate the image display unit so that the image display unit is tilted to a predetermined tilt angle or more before pivoting.

  Therefore, in order to prevent the image display unit from contacting the lower surface during pivot rotation, a movable claw unit is provided on the image display unit, a fixed claw unit is provided on the stand, and the image display unit is moved from a standing posture to a predetermined tilt angle. An image display device configured to prevent pivot rotation because the movable claw portion faces the fixed claw portion in a state where the claw portion is erected between the two is known (see, for example, Patent Document 1). .)

JP 2001-142408 A

  However, in the conventional image display device described in Patent Document 1, in order to pivot the image display unit, the user recognizes the structure that the image display unit needs to be inclined more than a predetermined tilt angle. The user has to consciously incline the image display unit beyond a predetermined tilt angle.

  For this reason, if the user does not know or forgets such a structure for pivoting, there is a problem that the user cannot pivot the image display unit, or the user forcibly rotates the image display unit. There has been a problem that the nail portion and the like may be damaged. As described above, the conventional image display apparatus is not easy to use.

  An object of the present invention is to provide an image display device that is easy to use and can prevent the image display unit from contacting the lower surface during pivot rotation.

  The image display device of the present invention includes an image display unit, a stand, and a tilt guiding unit. The image display unit can display an image on the image display surface and has a display unit bracket on the back of the image display surface. The stand has a stand bracket and is placed on the placement surface. The display bracket and the stand bracket are freely tiltable to rotate the image display unit back and forth between a predetermined standing posture and a predetermined tilted posture, and the image display unit is in a plane parallel to the image display surface. A rotation mechanism unit that supports the image display unit on a stand is configured to freely rotate the pivot. The tilt guiding unit causes the image display unit to stand up in a predetermined rotation area along the pivot rotation direction as the image display unit pivots in a state where the image display unit is erected from a standing posture to a predetermined tilt angle. Tilt rotation is performed in the tilt direction from the posture to the tilted posture.

  In this configuration, when the image display unit is pivoted, the image display unit is tilted and rotated in the tilt direction without being conscious of the user in a predetermined rotation region in the pivot rotation direction. When the image display unit tilts and rotates in the tilt direction, the lower end of the image display unit rises, and the image display unit does not contact the lower surface such as the placement surface or the stand base. Also, in order not to bring the image display portion into contact with the lower surface, before the pivot rotation is started, or before the portion with the longest radius connecting the pivot rotation axis and the outer edge portion of the image display portion is on the lower side during the pivot rotation. In addition, even when the user does not know or forgets that it is necessary to rotate the tilt, the image display unit rotates in the tilt direction in accordance with the pivot rotation in a predetermined rotation region, which is convenient.

  In the above-described configuration, the tilt guiding portion includes a protruding portion provided in the image display portion, and the protruding portion pivots the rotation region in a state where the image display portion is erected between the standing posture and the tilt angle. Accordingly, the image display unit can be configured to have an inclined surface that tilts and rotates in the inclination direction while sliding the stand.

  In this configuration, as the image display unit is pivoted, the inclined surface of the projecting part slides on the stand, so that the mounting position of the projecting part of the image display unit and the stand are separated from each other. The display unit tilts in the tilt direction. As described above, the image display unit can be prevented from coming into contact with the lower surface during pivot rotation without a user's consciousness with a simple structure.

  The stand slides in the entire rotation region in the direction along the pivot rotation direction in which the image display unit comes into contact with the placement surface when the image display unit is brought closer to the standing posture than the tilt angle. It is preferable to have a width dimension.

  In this configuration, when the projecting portion slides on the stand, the mounting position of the projecting portion of the image display unit and the stand are separated by at least the projecting amount of the projecting portion, so that the image display unit has a predetermined tilt angle or more. Is maintained in an inclined posture. Thus, the rotation area where the image display unit is tilted and rotated in the tilt direction can be adjusted by the width of the stand. This can more reliably prevent contact with the lower surface of the image display unit during pivot rotation.

  Further, the tilt guiding portion further includes a protrusion provided on the stand so as to protrude toward the image display portion, and the protrusion is formed in a trapezoidal cross section having an inclined surface and an upper surface parallel to the image display surface. The upper surface slides on the protrusions in all of the rotation regions in the direction along the pivot rotation direction in which the image display unit comes into contact with the mounting surface when the image display unit is brought closer to the standing posture than the tilt angle. It can be configured to have a length dimension along the pivoting direction.

  In this configuration, the projection of the stand and the inclined surface of the projection of the image display slide as the image display pivots, so that the image display tilts and tilts. While the projection and the upper surface of the projection of the image display unit slide, the image display unit is maintained in a posture inclined at a predetermined tilt angle or more. Thus, the rotation area in which the image display unit is tilt-rotated in the tilt direction can be adjusted by the length dimension of the upper surface of the protrusion. This can more reliably prevent contact with the lower surface of the image display unit during pivot rotation.

  The protrusion can be configured to be detachably attached to the stand.

  In this configuration, the tilt angle of the image display unit due to the sliding of the projection and the projection can be adjusted by changing the size of the projection. Therefore, it is possible to easily adjust the tilt angle that the image display unit rotates when the image display unit pivots in a predetermined rotation area according to the height from the lower surface of the image display unit and the size of the image display unit.

  Further, the protruding portion can be configured to be detachably attached to the image display portion.

  In this configuration, the tilt angle of the image display unit can be adjusted by sliding the projection and the stand by changing the mounting position of the projection on the image display unit or changing the size of the projection. can do. Therefore, it is possible to easily adjust the tilt angle that the image display unit rotates when the image display unit pivots in a predetermined rotation area according to the height from the lower surface of the image display unit and the size of the image display unit.

  According to the present invention, it is easy to use and it is possible to prevent the image display unit from contacting the lower surface during pivot rotation.

1 is a perspective view from an oblique rear side of an image display device according to a first embodiment of the present invention. It is an enlarged view of the rotation mechanism part of an image display apparatus. (A) is a figure which shows the state by which the image display part of the image display apparatus was arrange | positioned horizontally, (B) is a figure which shows the state by which the image display part was pivot-rotated from the horizontally long arrangement to the vertically long arrangement. (A) is a side view of the image display device showing a state in which the image display unit is arranged in a predetermined standing posture, and (B) is a predetermined direction in an inclination direction from the standing posture toward a predetermined inclined posture. It is a side view of the image display apparatus which shows the state rotated tilting more than a tilt angle. (A) It is the expanded perspective view of the protrusion part provided in the image display part, (B) is the protrusion part which shows the state which the image display part inclined in the inclination direction, as the protrusion part slides a stand, and its It is the side view to which the periphery was expanded. (A)-(D) is a schematic diagram of a horizontal section showing a process in which the image display unit tilts and rotates in the tilt direction as the projecting part slides on the stand as the image display unit pivots. . It is a side view which shows the state by which the image display part of the image display apparatus which concerns on a comparative example is arrange | positioned vertically long and in the standing posture. (A)-(D) are the image display apparatus which concerns on 2nd Embodiment, and an image display part inclines because a protrusion part and the protrusion part of a stand slide as an image display part pivots. It is a schematic diagram of a horizontal cross section showing the progress of tilt rotation in the direction. (A) And (B) is a schematic diagram of the side surface which shows the structure of the image display apparatus which concerns on 3rd Embodiment.

  As shown in FIG. 1, the image display device 10 according to the first embodiment of the present invention includes a stand 20, an image display unit 30, and a protrusion 40.

  The stand 20 includes a stand base portion 21, a stand main body portion 22, and a stand bracket 23. The stand base portion 21 is placed on the placement surface 51. As an example, the stand base 21 is formed in a thin plate shape.

  The stand main body portion 22 has a vertically long shape, and is erected with respect to the placement surface 51 by the lower end portion being supported by the stand base portion 21. The stand bracket 23 is attached to the upper end of the stand main body 22. Note that the stand bracket 23 may be attached to a portion other than the lower end, such as the central portion of the stand main body 22.

  The image display unit 30 includes an image display main body unit 31 and a display unit bracket 32.

  The image display main body 31 has an image display surface 33 (see FIG. 3A) on the front surface. As an example, the image display main body 31 is a rectangular liquid crystal display. The display bracket 32 is attached to the back surface of the image display main body 31.

  As shown in FIG. 2, the display bracket 32 is rotatably supported by the stand bracket 23. The bracket 23 for a stand and the bracket 32 for a display part are freely tiltable to rotate the image display part 30 in the front-rear direction between a predetermined standing posture and a predetermined inclined posture, and the image display unit 30 is an image display surface 33. A rotation mechanism that supports the image display main body 31 on the stand main body 22 is configured to freely rotate in a plane parallel to the main body.

  As shown in FIG. 3A, the image display unit 30 is arranged horizontally when displaying in landscape orientation. As shown in FIG. 3B, the image display unit 30 can be placed in the portrait orientation by pivoting the image display unit 30 from the landscape orientation when performing portrait display. The image display device 10 according to the first embodiment includes a first pivot rotation direction X1 from the horizontally long position to the vertically long position, and the vertically long position to the horizontally long position within the rotation region of 90 degrees pivot rotation of the horizontally long position and the vertically long position. Pivot rotation is possible in both directions of the second pivot rotation direction X2 toward the arrangement.

  The image display unit 30 rotates the image display surface 33 upward as shown in FIG. 4B by rotating the tilt from the standing posture shown in FIG. 4A to the inclination direction Y1 toward the predetermined inclination posture. Can be directed. 4 (A) and 4 (B), a state in which a horizontally long arrangement and a standing posture are displaced to a posture that is vertically long and tilted more than the standing posture by rotating to both pivot and tilt rotations. Is shown.

  As shown in FIGS. 1 and 5A, the protrusion 40 is attached to the back surface of the image display unit 30. The protrusion 40 is attached at or near the position in the direction along the first pivot rotation direction X1 where the radius from the pivot rotation shaft 61 indicated by the alternate long and short dash line in FIG. 1 to the outer edge of the image display main body 31 is the longest. ing. In the first embodiment, since the image display main body 31 is rectangular, the protrusion 40 is positioned below when the pivot rotation shaft 61 and the image display 30 are pivoted. It is attached on the line connecting the corners 34 of 31 or in the vicinity thereof.

  As shown in FIGS. 5A and 5B, the protrusion 40 has an inclined surface 41 and an upper surface 42. The upper surface 42 is parallel to the image display surface 33. The inclined surface 41 is disposed adjacent to the downstream side of the upper surface 42 in the first pivot rotation direction X1. The inclined surface 41 is inclined so as to protrude from the rear surface of the image display main body 31 toward the upstream side in the first pivot rotation direction X1.

  As shown in FIGS. 5 (A) and 6 (A), in the state where the image display unit 30 is arranged horizontally, the protrusion 40 does not contact the stand 20, so the back of the image display unit 30 approaches the stand 20. The image display unit 30 can be placed in a standing posture.

  As shown in FIG. 6B, when the image display unit 30 is pivoted in the first pivot rotation direction X1 while standing, the inclined surface 41 of the projecting portion 40 slides on the stand 20. As an example, the protrusion 40 slides on the stand bracket 23.

  As shown in FIG. 6C, the image display unit 30 is further pivoted in the first pivot rotation direction X1 while sliding the inclined surface 41 of the protrusion 40 and the stand 20 to thereby move the image display unit. 30 rotates in the tilt direction Y1.

  As shown in FIGS. 5B and 6D, when the image display unit 30 is further pivoted in the first pivot rotation direction X1, the upper surface 42 of the projecting portion 40 slides on the stand 20 to display an image. The state in which the portion 30 is tilted in the tilt direction Y1 by a predetermined tilt angle or more is maintained. That is, the image display unit 30 is restricted from being closer to a standing posture than a predetermined tilt angle.

  As a result, the outer edge of the image display main body 31 that has the longest radius from the pivot rotation shaft 61, in the first embodiment, the image display main body 31 is rectangular, so that the lower side when the image display 30 is pivoted. The corner part 34 of the image display main body part 31 which will be located in ascends. For this reason, when the image display unit 30 is pivoted in a standing position, even if the corner 34 is in contact with the lower surface such as the mounting surface 51 or the stand base 21, according to the image display device 10, Contact to the lower surface of the portion 34 can be prevented.

  In order to prevent the image display unit 30 from coming into contact with the lower surface, the image display unit 30 is tilted and rotated in the tilt direction Y1 before the pivot rotation starts or before the corner portion 34 contacts the lower surface during the pivot rotation. Even when the user does not know or forgets that it is necessary, the image display unit 30 is tilted in the tilt direction Y1 in accordance with the pivot rotation in a predetermined rotation region, which is convenient. Therefore, it is easy to use and it is possible to prevent the image display unit 30 from contacting the lower surface during pivot rotation.

  As described above, when the image display unit 30 is pivoted in the first pivot rotation direction X1, a predetermined region in which the inclined surface 41 and the stand 20 slide in a rotation region slightly before the corner portion 34 contacts the lower surface. In the rotation region, the image display unit 30 is tilted and rotated in the tilt direction Y1 as the pivot rotates.

  As shown in FIG. 6D, as an example, even when the image display unit 30 is arranged vertically, the upper surface of the protrusion 40 is in contact with the stand 20, and the image display unit 30 is moved from a predetermined tilt angle. The approach to standing posture is also restricted. That is, the state where the image display unit 30 is tilted in the tilt direction Y1 by a predetermined tilt angle or more is maintained.

  Therefore, even when the lower end portion of the image display unit 30 is in contact with the lower surface in a standing posture and in a vertically arranged state as shown in FIG. 7, as shown in FIG. Accordingly, the image display unit 30 tilts and rotates in the tilt direction Y1 with the pivot rotation in a predetermined rotation region before the corner portion 34 contacts the lower surface, and the tilted posture is maintained even in the vertically long arrangement. Contact to the lower surface of the display unit 30 is prevented.

  The tilt rotation of the image display unit 30 accompanying the pivot rotation is not limited to the case of the pivot rotation in the standing posture. When the image display unit 30 is pivoted in a state where the inclined surface 41 of the projecting portion 40 stands up to a predetermined tilt angle at which the image display unit 30 can contact the stand 20, the corner portion 34 contacts the lower surface. In a predetermined rotation region where the inclined surface 41 and the stand 20 slide, which is a rotation region just before, the image display unit 30 is tilted and rotated in the inclination direction Y1 by the sliding of the inclined surface 41 and the stand 20.

  The protruding amount and the mounting position of the protruding portion 40 are designed such that when the image display unit 30 is pivoted, the image display unit 30 is tilted to the extent that it does not contact the lower surface.

  The protrusion 40 rotates in the predetermined rotation region along the first pivot rotation direction X1 as the image display unit 30 pivots in a state where the image display unit 30 is erected between the standing posture and the predetermined tilt angle. This corresponds to a tilt guiding unit that tilts and rotates the display unit 30 in the tilt direction Y1 from the standing posture to the tilted posture.

  When the lower end portion of the image display unit 30 is not in contact with the lower surface in a state where the image display unit 30 is in a standing posture and vertically arranged, the protruding portion 40 is configured not to contact the stand 20 in a state in which the image display unit 30 is arranged in a standing posture and vertically long. it can. In this case, as shown in FIG. 5A, the downstream side of the first pivot rotation direction X1 also protrudes from the back surface of the image display main body 31 toward the upstream side of the upper surface 42 in the first pivot rotation direction X1. It is preferable to provide an inclined surface 43 that is inclined in the direction. As a result, even when the image display unit 30 is pivoted from the portrait orientation to the landscape orientation in the second pivot rotation direction X2, the image display unit 30 can be tilted and rotated in the tilt direction Y1. Contact to the lower surface can be prevented.

  When the image display unit 30 is brought closer to the standing posture than the predetermined tilt angle, the corner 34 of the image display main body 31 or the lower end when the image display main body 31 is arranged vertically is in contact with the lower surface along the first pivot rotation direction X1. It is preferable to design the width dimension of the stand 20 so that the protrusion 40 contacts the stand 20 in all of the rotation regions in the same direction.

  When the protrusion 40 slides on the stand 20, the image display unit 30 is separated from the image display unit 30 by a predetermined amount by separating the mounting part of the image display unit 30 and the stand 20 by the protrusion amount of the protrusion 40. The posture inclined more than the tilt angle is maintained. Thus, the rotation area in which the image display unit 30 is rotated in the tilt direction Y1 can be adjusted by the width dimension of the stand 20. This can more reliably prevent contact with the lower surface of the image display unit 30 during pivot rotation.

  An image display apparatus 10A according to the second embodiment will be described with reference to FIGS. 8 (A) to 8 (D). The description of the same configuration as that of the image display apparatus 10 is omitted, and the same reference numerals are used for the same configuration.

  The stand 20 includes a protrusion 24 that protrudes toward the image display unit 30. The protrusion 24 has an inclined surface 241 that is inclined in a direction protruding from the stand body 22 toward the downstream side on the upstream side in the first pivot rotation direction X1. The protrusion 24 is included in the inclination guide part.

  The protrusion 40A has an inclined surface 41A and an upper surface 42A parallel to the image display surface 33. The protrusion 40A is formed in a trapezoidal cross section. The upper surface 42A has protrusions in all of the rotation regions in the direction along the first pivot rotation direction X1 in which the image display unit 30 comes into contact with the lower surface when the image display unit 30 is brought closer to the standing posture than the predetermined tilt angle. 24 is configured to have a length dimension along the first pivot rotation direction X1 that slides with the first pivot rotation direction X1.

  In this configuration, as shown in FIGS. 8A and 8B, the inclined surface 241 of the protrusion 24 and the protruding portion 40A as the image display unit 30 pivots in the first pivot rotation direction X1. The inclined surface 41A slides. As a result, as shown in FIGS. 8C and 8D, the image display unit 30 is tilted and tilted in the tilt direction Y1, and the protrusion 24 of the stand 20 and the upper surface 42A of the protrusion 40A are moved. During the sliding, the image display unit 30 is maintained in a posture inclined at a predetermined tilt angle or more. Thus, the rotation area in which the image display unit 30 is tilted and rotated in the tilt direction Y1 can be adjusted by the length dimension of the upper surface 42A of the protrusion 40A. Therefore, it is possible to more reliably prevent contact with the lower surface of the image display unit 30 during pivot rotation.

  The protrusion 24 can be configured to be detachably attached to the stand 20.

  In this configuration, by changing the size of the protrusion 24, the tilt angle of the image display unit 30 due to the sliding of the protrusion 24 and the protrusion 40A can be adjusted. Therefore, it is possible to easily adjust the tilt angle that the image display unit 30 rotates when the image display unit 30 pivots the rotation region according to the height from the lower surface of the image display unit 30 and the size of the image display unit 30. it can.

  As shown in FIGS. 9A and 9B, the image display device 10B according to the third embodiment is the first except that the protrusion 40B is detachably attached to the image display unit 30. The configuration is the same as that of the image display apparatus 10 according to the embodiment.

  The protrusion 40B is configured to be detachable at a plurality of locations in the image display unit 30 that have different distances from the pivot rotation shaft 61. By changing the attachment location of the protrusion 40B, the tilt angle of the image display unit 30 when the protrusion 40B slides on the stand 20 can be changed.

  In addition, the tilt angle of the image display unit 30 when the projection 40B slides on the stand 20 can be changed also by changing another projection having a different projection amount to the same location on the image display unit 30.

  In the image display device 10B, the stand main body portion 22 includes a fixed main body portion whose lower end is supported by the stand base portion 21, and a movable main body portion that is movable in the vertical direction with respect to the fixed main body portion. It is preferable that the stand main body is configured to be vertically extendable by moving the main body in the vertical direction with respect to the fixed main body. When the stand body 22 is configured to be extendable and retractable, the stand bracket 23 is preferably attached to the movable body. The height position of the image display unit 30 can be changed by expanding and contracting the stand main body unit 22.

  According to the height position and size from the lower surface of the image display unit 30, it is preferable to change the tilt angle at which the image display unit 30 is tilted in the tilt direction Y1 when the projecting unit 40B slides on the stand 20. The tilt angle can be easily adjusted by changing the attachment position of the part 40B to the image display part 30.

  For example, when the height T1 of the stand body portion 22 is increased to the height T2 as shown in FIG. 9B as shown in FIG. 9A, the tilt angle of the image display portion 30 is reduced. The image display unit 30 does not come into contact with the lower surface even when approaching in a standing posture. Therefore, the tilt angle of the tilt rotation of the image display unit 30 when the projection 40B and the stand 20 come into contact with each other is changed by changing the projection 40B to a position farther from the pivot rotation shaft 61. It is possible to reduce the tilt angle to the minimum necessary without touching.

  It is conceivable to construct a new embodiment by combining the technical features of the above-described embodiments.

  The above description of the embodiment is to be considered in all respects as illustrative and not restrictive. The scope of the present invention is shown not by the above embodiments but by the claims. Furthermore, the scope of the present invention is intended to include all modifications within the meaning and scope equivalent to the scope of the claims.

DESCRIPTION OF SYMBOLS 10, 10A, 10B Image display apparatus 20 Stand 21 Stand base part 22 Stand main-body part 23 Stand bracket 24 Protrusion part 30 Image display part 31 Image display main-body part 32 Display-part bracket 33 Image display surface 34 Corner | angular part 40, 40A , 40B Projection 41, 41A Inclined surface 42, 42A Upper surface 51 Placement surface 61 Pivot rotation axis X1 First pivot rotation direction X2 Second pivot rotation direction Y1 Inclination direction

Claims (5)

An image display unit that shows display the image on the image display surface,
And stand for you placed on the mounting surface the image display unit,
Freely rotatable tilt for rotating back and forth direction between the front Symbol predetermined stance an image display unit and a predetermined inclined position, and a pivot rotatably to rotate in a plane parallel to the image display unit on the image display surface a rotary mechanism for supporting the image display unit on the stand,
As the image display unit pivots in a state where the image display unit is erected between the standing posture and a predetermined tilt angle, the image display unit is moved from the standing posture in a predetermined rotation region in the pivot rotation direction. An inclination guiding portion that rotates the tilt in the inclination direction toward the inclination posture, and
The tilt guiding portion includes a protruding portion that tilts and rotates the image display portion,
The protrusion is
An inclined surface that tilts and rotates the image display unit in the tilt direction while sliding the stand with the pivot rotation;
A top surface parallel to the image display surface that slides the stand with further pivoting;
An image display device. The stand protrudes in all rotation regions in a direction along the pivot rotation direction in which the image display unit comes into contact with the placement surface when the image display unit is brought closer to the standing posture than the tilt angle. The image display device according to claim 1 , wherein the image display device has a width dimension in which the portion slides. The inclination guide part further includes a protrusion provided on the stand so as to protrude toward the image display part,
The protrusion is formed in a trapezoidal cross section with the inclined surface and the front SL upper surface,
The upper surface has the protrusion in all the rotation regions in the direction along the pivot rotation direction in which the image display unit comes into contact with the mounting surface when the image display unit is brought closer to the standing posture than the tilt angle. The image display device according to claim 1 , wherein the image display device has a length dimension along the rotation direction of the pivot that slides on a portion. The image display device according to claim 3 , wherein the protrusion is detachably attached to the stand. The projecting portion, the is detachably attached to an image display unit, an image display apparatus according to claim 1.

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