JP2008147741A - Head mount display - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a head mount display for preventing a display section arm after adjustment from moving easily and facilitating readjustment. <P>SOLUTION: At a holding section 4, a first display section arm 7 is provided via a rotation section 6 while the first display section arm turns freely with a horizontal direction in attachment as a rotary axis. A second display section arm 8 is inserted into the first display section arm 7 slidably. A display section 9 is attached to the tip of the second display section arm 8 via a universal hinge. The first display section arm 7 takes the second display section arm 8 in and out while the second display section arm 8 is restricted by a click mechanism. Therefore, click force operates by performing adjustment once, thus preventing the position of the second display section arm 8 from shifting. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a head mounted display.

  In recent years, various glasses-type image display devices for observing an image displayed on a display such as a liquid crystal panel (LCD) as a virtual image enlarged through an optical system having an eyepiece, a half mirror, etc. have been proposed, and wearable displays. is called. An example of such a wearable display is described in, for example, WO2004 / 061519A1 (Patent Document 1).

In many cases, this video display device is configured to be mounted on the head in a form wound around the head (referred to as a head-mounted display), and a binocular with a video display system formed at a position corresponding to both eyes. There is a one-eye type in which an image display system is formed at a position corresponding to one of the left and right eyes. Such wearable displays usually have a display unit for displaying video and a headphone for outputting sound.
WO2004 / 061519A1 publication

  In such a head mounted display, the left and right pads for contacting the head side surface (ear part) and fixing the head mounted display to the head and outputting sound, and the left and right holding parts for holding the pads respectively. A headband unit that connects the holding unit to apply a biasing force to press the pad to the left and right of the side of the head, a display unit arm that is connected to one of the holding units via a rotating unit, In general, the display unit has a display unit connected to the tip of the display unit arm, and the display unit arm is slidable with respect to the holding unit so as to be able to advance and retreat.

  When observing an image, the display unit arm is moved forward and backward with respect to the holding unit, and adjusted so that the display unit is positioned at the right position in front of the eyes. Therefore, this adjustment is necessary every time the head mounted display is mounted, and there is a problem that it is troublesome. When the head mounted display is not used, a method is adopted in which the display unit arm is rotated with respect to the holding unit and the display unit is positioned on the top of the head. In this case, due to the weight of the display unit There is a problem that the display arm slides and the position of the display unit changes.

  This invention is made | formed in view of such a situation, and makes it a subject to provide the head mounted display which the display part arm after adjustment is hard to move and readjustment is easy.

  A first means for solving the above problems is a head mounted display that is used by being mounted on the head and outputs an image, and holds the left and right pads that are in contact with the side of the head and the pads. A left and right holding part, a headband part that connects the holding part and applies an urging force to press the pad to the left and right sides of the head side surface, and one of the holding parts are connected via a rotating part. A first display unit arm; a second display unit arm connected to be slidable relative to the first display unit arm; and a display unit coupled to a tip of the second display unit arm. And a click part for locking the second display part arm with respect to the first display part arm, and the second display part arm is arranged at regular intervals by the first display arm by the click part. And can be advanced and retracted A head mounted display characterized and.

  The second means for solving the problem is the first means, wherein the regular interval is an interval in the range of 1 to 10 mm.

  The third means for solving the problem is the first means or the second means, characterized in that a mark is provided at a standard advance / retreat position of the display unit arm. To do.

  A fourth means for solving the above problems is a head mounted display that is used by being mounted on the head and outputs an image, and holds the left and right pads that are in contact with the side of the head and the pads. A right and left holding part, a headband part that connects the holding part and applies an urging force to press the pad to the left and right sides of the head side surface, and one of the holding parts can be advanced and retracted via a rotating part. A display arm connected to the distal end of the display arm; and a click part for locking the display arm with respect to the rotating part. The head-mounted display is characterized in that it can be locked to the rotating portion by the click portion at a proper interval and can be advanced and retracted.

  A fifth means for solving the above problem is the fourth means, wherein the regular interval is an interval in the range of 1 to 10 mm.

  ADVANTAGE OF THE INVENTION According to this invention, the display part arm after adjustment cannot move easily, and the head mounted display which is easy to readjust can be provided.

  Hereinafter, an example of an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a top view of a state in which a head mounted display as an example of an embodiment of the present invention is mounted. This head mounted display includes ear pads 1 and 2 that hold both ears from the left and right to fix the head mounted display to the head. A speaker is provided in each of the ear pads 1 and 2 and outputs sound to each ear.

  The ear pads 1 and 2 are fixed to the holding portions 3 and 4 through universal hinges, respectively. The left and right holding parts 3, 4 are slidably inserted into the headband part 5 and are connected by the headband part 5. The headband part 5 has elasticity and gives a biasing force that presses the ear pads 1 and 2 against the ear part from the left and right.

  The holding unit 4 is provided with a first display unit arm 7 through a rotation unit 6 so as to be rotatable about the left and right direction when mounted, and the second display unit 7 has a second display. The part arm 8 is slidably inserted. A display unit 9 is attached to the tip of the second display unit arm 8 via a free hinge.

  FIG. 2 is an enlarged view of part A in FIG. The second display arm 8 is provided with locking recesses 8a at regular intervals (a fixed value between 1 to 10 mm). On the other hand, the first display arm 7 is provided with a recess 7a into which a bent leaf spring 10 is fitted as shown in the figure. When the second display arm 8 is inserted and slid into the first display arm 7, the convex portion of the leaf spring 10 is fitted into the locking concave portion 8 a to engage the second display arm 8. Stop. When the second display portion arm 8 is slid against this locking force, the second display portion arm 8 slides until the convex portion of the leaf spring 10 is fitted in the next locking concave portion 8a. . That is, these mechanisms constitute a click mechanism. Accordingly, a certain amount of force is required to slide the second display unit arm 8 against the urging force of the leaf spring 10 once fitted into the locking recess 8a. If the position 8 is adjusted, the second display unit arm 8 is not easily displaced from the position, and readjustment is not necessary. A wire spring can be used instead of the leaf spring 10.

  Note that a certain standard position is determined as the position of the display unit 9, and thereby, the pop-out length of the second display unit arm 8 is also determined as a standard one. Therefore, in order to clarify the position, if a mark 11 is attached and the pop-out amount of the second display arm 8 is adjusted so that the mark 11 comes to a predetermined position, the standard display 9 The image can be observed at the position. Further, the standard position can be used as a guide and fine adjustment can be performed therefrom.

  FIGS. 3A and 3B are examples used to configure the click mechanism of the first display unit arm 7 itself. FIG. 3A is a cross-sectional view, and FIG. 3B is a view seen from the B direction in FIG. The first display portion arm 7 is provided with a notch portion 7b, and as a result, a spring portion 7c is formed. The spring portion 7c has a convex portion 7d, and the convex portion 7d is fitted into the locking concave portion 8a of the second display portion arm 8 by an elastic force so as to lock the sliding of the second display portion arm 8. It has become. The effect is the same as that shown in FIG.

  As a modification, the first display arm 7 and the second display arm 8 are not used, but a single display arm is adopted, while the pivoting portion and the one display arm are rotated at the connecting portion. There is a head-mounted display having a structure in which the one display arm can move forward and backward with respect to the portion and a click portion that can be locked to the rotating portion is provided. As the structure of the click portion of the head mounted display, the same structure as that of the above-described embodiment can be adopted.

It is the figure which looked at the state equipped with the head mounted display which is an example of an embodiment of the invention from the upper part. It is an example of the A section enlarged view of FIG. It is another example of the A section enlarged view of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Ear pad, 2 ... Ear pad, 3 ... Holding part, 4 ... Holding part, 5 ... Headband part, 6 ... Turning part, 7 ... 1st display part arm, 7a ... Recessed part, 7b ... Notch part, 7c ... Spring part, 7d ... convex part, 8 ... second display part arm, 8a ... concave part for locking, 9 ... display part, 10 ... leaf spring

Claims (5)

  A head-mounted display that is used by being mounted on a head and outputs an image, wherein left and right pads that contact the side of the head, left and right holding portions that respectively hold the pads, and the holding portions are connected to each other. A headband portion that applies an urging force that presses the pad to the left and right sides of the head side surface, a first display portion arm that is connected to one of the holding portions via a rotating portion, and the first display portion arm A second display unit arm that is slidably connected to be movable forward and backward, and a display unit that is coupled to a tip of the second display unit arm, and the second display unit arm is connected to the first display unit arm. A click portion that locks against the display portion arm, and the second display portion arm is locked to the first display portion arm by the click portion at regular intervals and can be advanced and retracted. Characteristic head mount display B.   The head mounted display according to claim 1, wherein the regular interval is an interval in a range of 1 to 10 mm.   The head-mounted display according to claim 1 or 2, wherein a mark is provided at a standard advance / retreat position of the second display unit arm.   A head-mounted display that is used by being mounted on a head and outputs an image, wherein left and right pads that contact the side of the head, left and right holding portions that respectively hold the pads, and the holding portions are connected to each other. A headband portion that applies an urging force that presses the pad to the left and right of the side of the head, a display arm that is connected to one of the holding portions via a rotating portion, and a tip of the display arm. A display unit coupled to the display unit, and a click unit that locks the display arm with respect to the rotation unit. The display arm is engaged with the rotation unit by the click unit at regular intervals. A head-mounted display that can be stopped and advanced and retracted.   The head mounted display according to claim 4, wherein the regular interval is an interval in a range of 1 to 10 mm.

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