JP2018097272A - Display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technique for suppressing occurrence of slide due to tilting operation.SOLUTION: A display device 100 comprises a base 400, a display unit 300, a first attachment part 500a and a second attachment part 500b. The display unit 300 can be slid and tilted with respect to the base 400. The first attachment part 500a and the second attachment part 500b attach the display unit 300 to the base 400. The base 400 includes a first rail 402a and a second rail 402b. A first move part 510a and a second move part 510b are combined with the first rail 402a and the second rail 402b and move along the first rail 402a and the second rail 402b. A first brake part 512a and a second brake part 512b limit movement of the first move part 510a and the second move part 510b. A first rotation part 520a and a second rotation part 520b rotate the display unit 300.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a display device, and more particularly to a display device whose display unit is movable.

  The housing in the ceiling-mounted monitor device is mounted on the ceiling of the passenger compartment. A rotating shaft provided in the housing supports the display so as to be rotatable. With this configuration, the angle of the display can be changed between a closed state housed in the housing and an open state in which the display is suspended from the housing (for example, see Patent Document 1).

JP 2006-103556 A

  There are various user postures when viewing the video displayed on the display. In order to improve the visibility of the user in various postures, not only the tilt function but also the slide function is required for the display. When the tilt function and the slide function are provided manually, the display may move back and forth due to a load applied when the user changes the angle of the display.

  The present invention has been made in view of such circumstances, and an object thereof is to provide a technique for suppressing the occurrence of a slide due to a tilt operation.

  In order to solve the above problems, a display device according to an aspect of the present invention includes a base, a display unit that can slide and tilt with respect to the base, and an attachment unit that attaches the display unit to the base. The base has rails. The attachment unit includes a moving unit that is combined with the rail and moves along the rail, a braking unit that restricts movement of the moving unit, and a rotating unit that rotates the display unit.

  According to the present invention, the occurrence of a slide due to a tilt operation can be suppressed.

It is a perspective view which shows the external appearance of the display apparatus which concerns on the Example of this invention. It is a perspective view which shows the internal structure of the display apparatus of FIG. 3A to 3D are diagrams showing the internal structure of the display device of FIG. 4A to 4C are cross-sectional views showing the internal structure of the display device of FIG.

  Prior to specific description of the present embodiment, the basic knowledge will be described. Embodiments of the present invention relate to a display device that is installed on a ceiling of a vehicle and includes a display unit that is visually recognized by a user of a second row seat and a third row seat. It can be said that such a display device is included in a rear seat entertainment system (RSE). In order to improve the visibility regardless of the posture of the user in the second row seat and the third row seat, the display unit of the display device is required to have a tilt function and a slide function. Further, in order to reduce the feeling of pressure on the user, the display unit is required to be thin.

  In such a situation, when the tilt function and the slide function are provided manually, a load applied when the user changes the angle of the display unit (hereinafter referred to as “tilt adjustment load”) moves the display unit back and forth. Therefore, it may be larger than the load to be applied (hereinafter referred to as “sliding operation load”). As a result, even if the user intends to adjust only the angle of the display unit, the display unit may move back and forth, which deteriorates user convenience. The present embodiment aims to suppress the occurrence of a slide due to a tilt operation when the tilt function and the slide function of the display unit are provided manually. In the following description, “parallel” and “orthogonal” include not only perfect parallel and orthogonal, but also include cases in which deviation from parallel or orthogonal is within the range of error. Further, “substantially” means that they are the same in an approximate range.

  FIG. 1 is a perspective view showing an appearance of a display device 100 according to an embodiment of the present invention. As shown in FIG. 1, an orthogonal coordinate system including an x-axis, a y-axis, and a z-axis is defined. The x axis and the y axis are orthogonal to each other. The z axis is perpendicular to the x axis and the y axis, and extends in the thickness direction of the display device 100. Further, the positive directions of the x-axis, y-axis, and z-axis are each defined in the direction of the arrow in FIG. 1, and the negative direction is defined in the direction opposite to the arrow. Here, z axis positive direction is “upward”, “upper side”, “upper surface side”, z axis negative direction is “downward”, “lower side”, “lower surface side”, and y axis negative direction is “front”. ”,“ Front side ”,“ front side ”, and the positive direction of the y-axis may be referred to as“ rear side ”,“ rear side ”, and“ rear side ”. Furthermore, the direction from the both ends of the display device 100 in the x-axis direction toward the center may be referred to as “inside”, and the direction from the center of the display device 100 in the x-axis direction toward both ends may be referred to as “outside”.

  The display device 100 includes a housing 200 and a display unit 300. Here, the housing 200 includes a concave portion 210, a first wall portion 212 a, a first slide groove 214 a, and a first blindfold sheet 216 a, and the display unit 300 includes a display surface 302. The case 200 is installed on the ceiling 10 of the vehicle via a bracket (not shown). A concave portion 210 having a shape recessed upward is disposed in the central portion on the lower surface side of the housing 200. A first slide groove 214a extending in the front-rear direction is opened in the first wall 212a that is the side surface of the concave portion 210 on the negative side of the x-axis. The first slide groove 214a is provided in a range in which the display unit 300 can move in the front-rear direction, and is covered by the first blindfold sheet 216a.

  Note that a second wall portion 212b, a second slide groove 214b, and a second blindfold sheet 216b (not shown) are provided on the side surface of the concave portion 210 on the positive direction side of the x-axis, and the first wall portion 212a and the first slide groove 214a. The first blindfold sheet 216a is disposed symmetrically. Here, the first wall portion 212a and the second wall portion 212b are collectively referred to as the wall portion 212, the first slide groove 214a and the second slide groove 214b are collectively referred to as the slide groove 214, and the first blindfold sheet 216a and the second blindfold. The sheet 216b is collectively referred to as a blindfolded sheet 216.

  The display unit 300 includes, for example, a display surface 302 formed by an LCD (Liquid Crystal Display) on one surface side. As described above, the display unit 300 can move in the front-rear direction along the slide groove 214, but is disposed at the forefront in FIG. Such movement in the front-rear direction corresponds to a slide. Further, the display unit 300 can be rotated about the housing 200 side as an axis, but is arranged such that the display surface 302 faces rearward in FIG. Such rotation corresponds to tilt. In the state shown in FIG. 1, the display surface 302 is visually recognized by the user seated on the second row seat and the third row seat of the vehicle.

  2 is a perspective view showing the internal structure of the display device 100, FIGS. 3A to 3D show the internal structure of the display device 100, and FIGS. 4A to 4C show the display device. 1 is a cross-sectional view showing an internal structure of 100. FIG. 3A is a cross-sectional view taken along the line AA ′ of FIG. 2, and FIG. 3B is a structure viewed from the α direction of FIG. 3A. FIG. 3C shows the structure viewed from the β direction in FIG. 3A, and FIG. 3D shows the structure viewed from the γ direction in FIG. FIG. 4A is a cross-sectional view taken along line B-B ′ of FIG. The description of FIGS. 4B to 4C will be described later.

  The display device 100 includes a display unit 300, a base 400, a first mounting unit 500a and a second mounting unit 500b collectively referred to as a mounting unit 500. The base 400 includes a first rail 402a and a second rail 402b collectively referred to as a rail 402. The first mounting portion 500a includes a first support plate 502a, a first support portion 504a, a first moving portion 510a, a first braking portion 512a, and a first rotating portion 520a. The second mounting part 500b includes a second support plate 502b, a second support part 504b, a second moving part 510b, a second braking part 512b, and a second rotating part 520b. Here, the first support plate 502a and the second support plate 502b are collectively referred to as the support plate 502, and the first support portion 504a and the second support portion 504b are collectively referred to as the support portion 504, and the first moving portion 510a and the second moving portion. The portion 510b is collectively referred to as the moving portion 510, the first braking portion 512a and the second braking portion 512b are collectively referred to as the braking portion 512, and the first rotating portion 520a and the second rotating portion 520b are collectively referred to as the rotating portion 520. Here, the structure for preventing the mounting portion 500 from dropping is omitted.

  The base 400 has a frame shape with an open central portion in the xy plane. The base 400 is covered by the housing 200 of FIG. 1 from the lower surface side, but the concave portion 210 of FIG. Since the base 400 is thus arranged inside the housing 200, the base 400 can be installed on the ceiling 10. A linear second rail 402b that extends in the y-axis direction along the second slide groove 214b of the housing 200 is disposed on the positive side of the base 400 in the x-axis direction. The second rail 402b is a rack gear, for example, and has a tooth shape on the lower surface side of the flat bar. The length of the second rail 402b in the y-axis direction is set to a range in which the display unit 300 can slide.

  The second moving portion 510b of the second mounting portion 500b is a pinion, and the tooth profile formed on the circumferential portion of the circular gear rotatable in the yz plane is combined with the tooth profile of the second rail 402b. A combination of the second rail 402b and the second moving unit 510b is a rack and pinion. When a rotational force is applied to the second moving unit 510b, the second moving unit 510b moves to the end along the second rail 402b.

  The inside of the second moving unit 510b is connected to the second braking unit 512b. The second braking unit 512b is a rotary damper. For example, the second moving unit 510b and the second braking unit 512b are combined as a rotary damper with a gear. When the second moving unit 510b rotates, the second braking unit 512b applies a braking force to the rotating workpiece by the viscous resistance of the oil stored therein. Thereby, the 2nd brake part 512b becomes a brake with respect to the movement of the 2nd moving part 510b, and restrict | limits the movement of the 2nd moving part 510b.

  The inner side of the second braking portion 512b is fixed to the second support plate 502b. The second support plate 502b has a plate shape extending in the yz plane, and supports the second moving unit 510b and the second braking unit 512b on the outer surface. With this support, the second moving unit 510b rotates around a rotation axis extending in the x-axis direction from the second support plate 502b. On the inner surface of the second support plate 502b opposite to the outer surface, a second support portion 504b extending inward and then extending downward in the yz plane is disposed. One end of the second rotating part 520b is connected to the second support part 504b. The second rotating unit 520 b is a hinge, and the other end side of the second rotating unit 520 b is connected to the display unit 300. Therefore, it can be said that the second attachment portion 500b attaches the display unit 300 to the base 400 by the second rotating portion 520b and the second moving portion 510b.

  Here, the display unit 300 is also connected to the first rotating unit 520a so as to be sandwiched between the second rotating unit 520b and the first rotating unit 520a from both ends in the x-axis direction. It rotates with the axis connecting the second rotating part 520b as the rotation axis. That is, the display unit 300 has a state in which the display surface 302 approaches the base 400 and is housed in the concave part 210 in FIG. 1 (hereinafter referred to as “closed state”), and a state illustrated in FIG. Hereinafter, it can be tilted so as to change the angle with respect to the base 400.

  The first rail 402a, the first mounting portion 500a, the first support plate 502a, the first support portion 504a, the first moving portion 510a, the first braking portion 512a, and the first rotating portion 520a are the second rail 402b and the second mounting portion. Part 500b, second support plate 502b, second support part 504b, second moving part 510b, second brake part 512b, and second rotating part 520b. In particular, each of the former is symmetrically arranged with respect to each of the latter in the x-axis direction, and thus description thereof is omitted here.

  FIG. 4B is a cross-sectional view when the moving unit 510 moves to the rearmost side along the rail 402 from the state of FIG. 3A, and FIG. FIG. 5 is a cross-sectional view corresponding to FIG. In these cases, the display unit 300 is also arranged on the rearmost side. That is, the display unit 300 is connected to the base 400 between the state of FIG. 3A (hereinafter referred to as “frontmost state”) and the state of FIG. 4B (hereinafter referred to as “rearmost state”). On the other hand, it can slide back and forth.

  When such a structure is put together, the display unit 300 can be slid by the moving unit 510 disposed outside the support plate 502, and the display unit 300 can be tilted by the rotating unit 520 disposed inside the support plate 502. Possible. Here, it is assumed that the display unit 300 is positioned between the foremost state and the rearmost state and is inclined at an angle between the closed state and the fully open state. In such a situation, in order to bring the tilt of the display unit 300 closer to the fully open state, the user presses the lower edge of the display unit 300 to cause the second rotating unit 520b shown in the direction of FIG. A clockwise tilt adjustment load is applied. Further, a tilt adjustment load in the same direction is also applied to the first rotating unit 520a.

  These tilt adjustment loads are changed to slide operation loads in the direction toward the front in the mounting portion 500. When the braking unit 512 is not included, the moving unit 510 and the display unit 300 move so as to approach the foremost state due to the slide operation load. That is, even when the user wants to adjust only the angle of the display unit 300, the position of the display unit 300 moves. On the other hand, since the brake unit 512 is included in this embodiment, the sliding operation load in the forward direction is braked by the brake unit 512. Therefore, the movement which approaches the forefront state in the movement part 510 and the display part 300 is suppressed.

  According to the embodiment of the present invention, since the mounting portion provided with the moving portion and the rotating portion is also provided with the braking portion, the sliding operation load changed from the tilt adjustment load applied to the rotating portion is applied to the moving portion. Can be suppressed. Moreover, since it is suppressed that a slide operation | movement load is added to a moving part, generation | occurrence | production of the slide to the front-back direction is suppressed. In addition, even when a tilt adjustment load is applied, the slide operation load is suppressed from being applied to the moving part, so that the occurrence of a slide due to the tilt operation can be suppressed. Moreover, since the moving part, the rotating part, and the braking part are provided in the attachment part, a mechanism for tilting and sliding the display part can be integrated in the attachment part. In addition, since the rack gear, pinion, and rotary damper are used, the sliding operation load applied to the rack gear and pinion can be reduced by the rotary damper. Further, since the base is installed on the ceiling, it is possible to suppress the occurrence of a slide due to a tilt operation in a display device that is suspended from the ceiling.

  The outline of one embodiment of the present invention is as follows. A display device according to an aspect of the present invention includes a base, a display unit that can slide and tilt relative to the base, and an attachment unit that attaches the display unit to the base. The base has rails. The attachment unit includes a moving unit that is combined with the rail and moves along the rail, a braking unit that restricts movement of the moving unit, and a rotating unit that rotates the display unit.

  According to this aspect, since the mounting portion provided with the moving portion that moves along the rail and the rotating portion that rotates the display portion is also provided with the braking portion that restricts the movement of the moving portion, the slide by the tilt operation Can be suppressed.

  The rail may be a rack gear, the moving unit may be a pinion, and the braking unit may be a rotary damper. In this case, since the rack gear, pinion, and rotary damper are used, the sliding operation load applied to the rack gear and pinion can be reduced by the rotary damper.

  The base may be installable on the ceiling. In this case, since the base is installed on the ceiling, it is possible to suppress the occurrence of a slide due to a tilt operation in a display device that is suspended from the ceiling.

  In the above, this invention was demonstrated based on the Example. This embodiment is an exemplification, and it will be understood by those skilled in the art that various modifications can be made to each of those constituent elements or combinations of processing processes, and such modifications are also within the scope of the present invention. .

  In the present embodiment, the display device 100 is mounted on the ceiling 10 of the vehicle. However, the present invention is not limited thereto, and for example, the display device 100 may be installed on the ceiling 10 of the room without being mounted on the ceiling 10 of the vehicle. According to this modification, the application range can be expanded.

  10 ceiling, 100 display device, 200 housing, 210 concave part, 212 wall part, 214 slide groove, 216 blindfold sheet, 300 display part, 302 display surface, 400 base, 402 rail, 500 mounting part, 502 support plate, 504 support part, 510 moving part, 512 braking part, 520 rotating part.

Claims (3)

Base and
A display unit capable of sliding and tilting with respect to the base;
An attachment portion for attaching the display portion to the base;
The base comprises rails;
The mounting portion is
A moving part that is combined with the rail and moves along the rail;
A braking unit that restricts movement of the moving unit;
A display device comprising: a rotation unit that rotates the display unit. The rail is a rack gear;
The moving part is a pinion;
The display device according to claim 1, wherein the braking unit is a rotary damper.   The display device according to claim 1, wherein the base can be installed on a ceiling.

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