Head-mounted display device

Abstract

The invention discloses a head-mounted display device. The head-mounted display device comprises a display part and a head cushion module, the headrest module includes a base, a first driver, a first cushion, a first sensor, and a controller. The base is pivoted to the display part. The first driver is connected between the base and the display part and used for driving the base to rotate relative to the display part. The first cushion is arranged on the base and used for contacting a forehead of a user. The first sensor is arranged on the first cushion and used for sensing the pressure applied to the first cushion by the forehead. The controller is electrically connected with the first sensor and the first driver and used for controlling the first driver to drive the base or stop driving the base according to the sensing result of the first sensor.

Description

Technical Field

[0001] The invention relates to a head-mounted display device. Background Art

[0002] In recent years, the application of virtual reality (VR) and augmented reality (AR) has become more and more popular, and there are many types of head-mounted display devices. However, in existing head-mounted display devices, the components used to contact the head are not suitable for all users, which makes some users feel uncomfortable when wearing such head-mounted display devices. Therefore, how to make the head-mounted display device more firmly worn on the user's head while also providing the user with a more comfortable use experience is an extremely important topic in this field. Summary of the invention

[0003] The present invention is directed to a head-mounted display device, which helps to improve the comfort of the user when wearing it.

[0004] The head-mounted display device of the present invention includes a display unit and a head pad module. The head pad module includes a base, a first driver, a first cushion, a first sensor and a controller. The base is pivotally connected to the display unit. The first driver is connected between the base and the display unit to drive the base to rotate relative to the display unit. The first cushion is arranged on the base to contact a forehead of a user. The first sensor is arranged on the first cushion to sense the pressure applied to the first cushion by the forehead. The controller is electrically connected to the first sensor and the first driver to control the first driver to drive the base or stop driving the base according to the sensing result of the first sensor.

[0005] In one embodiment of the present invention, the head pad module also includes two cushion seats, a second driver, two second cushions and two second sensors. The two cushion seats are movably arranged on the base. The second driver is connected between the base and the cushion seat to drive the cushion seat to move relative to the base. The two second cushions are arranged on the cushion seat and located on both sides of the first cushion to contact the forehead. The two second sensors are arranged on the second cushion to sense the pressure applied to the second cushion by the forehead. The controller is further electrically connected to the second sensor and the second driver to control the second driver to drive the cushion seat or stop driving the cushion seat according to the sensing result of the second sensor to change the angle between the second cushion and the first cushion.

[0006] In one embodiment of the present invention, the head mounted display device further comprises a knob coupled to the soft cushion seat, for allowing a user to manually drive the soft cushion seat to move relative to the base, so as to change an angle between the second soft cushion and the first soft cushion.

[0007] In one embodiment of the present invention, the first driver includes a first motor, the second driver includes a second motor, and the rotating shaft of the first motor and the rotating shaft of the second motor are perpendicular to each other.

[0008] In one embodiment of the present invention, the display unit is a virtual reality display unit or an augmented reality display unit.

[0009] In one embodiment of the present invention, the base is detachably pivotally connected to the display portion.

[0010] In one embodiment of the present invention, the controller signal is connected to the display unit.

[0011] In one embodiment of the present invention, the controller controls the first driver to drive the base or stop driving the base according to a comparison result between the sensing result of the first sensor and a threshold value set by the user.

[0012] Based on the above, in the head mounted display device of the present invention, the controller controls the rotation of the cushion according to the sensing result of the sensor, which can adapt to the head shapes of different users and help improve comfort and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of a usage state of a head mounted display device according to an embodiment of the present invention;

[0014] Figure 2 yes Figure 1 A schematic diagram of a head mounted display device;

[0015] Figure 3 yes Figure 1 A schematic diagram of another perspective of the head mounted display device;

[0016] Figure 4 yes Figure 1 A schematic diagram of an operation of a head mounted display device in a usage state;

[0017] Figure 5 and Figure 6 yes Figure 1 Schematic diagram of head-mounted display devices worn on the heads of different users. DETAILED DESCRIPTION

[0018] Reference will now be made in detail to exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Whenever possible, the same reference numerals are used in the drawings and the description to refer to the same or like parts.

[0019] Figure 1 is a schematic diagram of a head mounted display device in use according to an embodiment of the present invention. Figure 1The head mounted display device 50 of this embodiment includes a display unit 52 and a head pad module 100. The display unit 50 may be a virtual reality display unit, an augmented reality display unit or other forms of display units.

[0020] Figure 2 yes Figure 1 Schematic diagram of a head-mounted display device. Figure 3 yes Figure 1 Another view of the head mounted display device. Figure 2 and Figure 3 , the head pad module 100 of this embodiment includes a base 110, a first driver 120, a first cushion 130, a first sensor 140 and a controller 150. The base 110 is pivoted to the display portion 52. That is, the base 110 can rotate relative to the display portion 52. The first driver 120 is connected between the base 110 and the display portion 52 to drive the base 110 to rotate relative to the display portion 52. In other words. The first driver 120 is connected to the base 110, and the first driver 120 is also connected to the display portion 52, so the first driver 120 can change the relative state of the base 110 and the display portion 52. In this embodiment, the first driver 120 can drive the base 110 to rotate relative to the display portion 52, that is, the first driver 120 can drive the base 110 to rotate clockwise and approach the display portion 52, or drive the base 110 to rotate counterclockwise and move away from the display portion 52, such as Figure 4 Viewing angle shown.

[0021] The first cushion 130 is disposed on the base 110 to contact a forehead 10 of a user (see Figure 1 ). The first sensor 140 is disposed on the first cushion 130 to sense the pressure applied by the forehead 10 to the first cushion 130. The first sensor 140 may be disposed between the first cushion 130 and the base 110, or may be buried in the first cushion 130, or may be disposed at other appropriate locations.

[0022] The controller 150 is electrically connected to the first sensor 140 and the first driver 120, and is used to control the first driver 120 to drive the base 110 or stop driving the base 110 according to the sensing result of the first sensor 140. That is, the sensing result of the first sensor 140 is transmitted to the controller 150. The controller 150 controls the first driver 120 to drive the base 110 or stop driving the base 110 according to the comparison result of the sensing result of the first sensor 140 and a threshold. For example, when the sensing result of the first sensor 140 is lower than the threshold, the controller 150 controls the first driver 120 to drive the base 110 to rotate. When the sensing result of the first sensor 140 is equal to or higher than the threshold, the controller 150 controls the first driver 120 to stop driving the base 110. This threshold can be set by the user, or set by the manufacturer during manufacturing.

[0023] In this embodiment, the controller 150 is connected to the display unit 52 by signal. Therefore, the user can set the aforementioned threshold value in the system displayed on the display unit 52. However, the controller 150 may not be connected to the display unit 52 by signal, and the aforementioned threshold value is set by the manufacturer and cannot be changed, but the components and costs required for signal connection can be saved. The controller 150 can be connected to the display unit 52 by signal in a wired or wireless manner.

[0024] Figure 4 yes Figure 1 Schematic diagram of the head mounted display device in use. Figure 2 and Figure 4 When the user just wears the head mounted display device 50 of this embodiment, the head pad module 100 is in a state of being away from the user's forehead 10. Then, the user can electrically or manually activate the first driver 120 to drive the base 110 to rotate relative to the display unit 52, or according to whether the user is sensing that the head mounted display device 50 is worn. At this time, the base 110 will rotate toward the user's forehead 10, and the first soft pad 130 will contact the user's forehead 10. After the first soft pad 130 contacts the user's forehead 10, the first sensor 140 can begin to sense the pressure applied by the forehead 10 to the first soft pad 130, and transmit the sensing result to the controller 150. When the controller 150 determines that the sensing result has not exceeded the threshold, it controls the first driver 120 to continue to drive the base 110 to rotate, so that the soft pad 130 is closer to the user's forehead 10, and improves the stability of wearing. When the controller 150 determines that the sensing result is equal to or higher than the threshold value, the controller 150 controls the first driver 120 to stop driving the base 110 to prevent the cushion 130 from causing discomfort to the user.

[0025] Each user has a different head shape, for example, the inclination of the forehead is different. However, the angle of the first soft pad 130 of the head mounted display device 50 of this embodiment can be changed, so it can better contact the forehead of each different user, which helps to improve the comfort of the user wearing the head mounted display device and further increase its stability when worn on the user's head.

[0026] In this embodiment, the base 110 is pivotally connected to the display portion 52 in a relatively fixed manner. However, in other embodiments, the base 110 may also be detachably pivotally connected to the display portion 52, so that the user can decide whether to install the headrest module 100 according to needs.

[0027] Figure 5 and Figure 6 yes Figure 1 Schematic diagram of head mounted display devices worn on the heads of different users. Please refer to Figures 4 to 6 In this embodiment, the head pad module 100 also includes two soft pad seats 160, a second driver 170, two second soft pads 180 and two second sensors 190. The two soft pad seats 160 are movably arranged on the base 110. The second driver 170 is connected between the base 110 and the soft pad seats 160 to drive the soft pad seats 160 to move relative to the base 110. In other words. The second driver 170 is connected to the base 110, and the second driver 170 is also connected to the two soft pad seats 160, so the second driver 170 can change the relative state of the base 110 and the two soft pad seats 160. In this embodiment, the second driver 170 can drive the two soft pad seats 160 to move relative to the base 110.

[0028] The two second soft pads 180 are arranged on the soft pad seat 160 and located on both sides of the first soft pad 130, so as to contact the forehead 10. That is, the two second soft pads 180 and the first soft pad 130 together form an approximate curved surface for contacting the forehead. When the two soft pad seats 160 move relative to the base 110, the angle between the two second soft pads 180 and the first soft pad 130 can change, so the curvature of the approximate curved surface formed by the three can change.

[0029] Two second sensors 190 are disposed on the second cushion 180 to sense the pressure applied by the forehead 10 to the second cushion 180. The controller 150 is further electrically connected to the second sensor 190 and the second driver 170 to control the second driver 170 to drive the cushion seat 160 or stop driving the cushion seat 160 according to the sensing result of the second sensor 190, so as to change the angle between the second cushion 180 and the first cushion 130. That is, the sensing result of the second sensor 190 is transmitted to the controller 150. The controller 150 controls the first driver 120 to drive the cushion seat 160 or stop driving the cushion seat 160 according to the comparison result of the sensing result of the second sensor 190 with a threshold value. For example, when the sensing result of the second sensor 190 is lower than the threshold value, the controller 150 controls the second driver 170 to drive the cushion seat 160 to move so that the second cushion 180 rotates. When the sensing result of the second sensor 190 is equal to or higher than the threshold, the controller 150 controls the second driver 170 to stop driving the cushion seat 160 to move. This threshold can be set by the user, or set by the manufacturer during manufacturing. In this way, no matter whether the user's forehead has a larger or smaller radius of curvature, the two second cushions 180 can well contact the user's forehead.

[0030] In this embodiment, the head mounted display device 50 further includes a knob 162 coupled to the cushion seat 160, for allowing the user to manually drive the cushion seat 160 to move relative to the base 110 to change the angle between the second cushion 180 and the first cushion 130. That is, the user can fine-tune the angles of the two second cushions 180 according to his or her own preferences.

[0031] In this embodiment, the first driver 120 includes a first motor 122, and the second driver 170 includes a second motor 172. The rotation axis 122A of the first motor 122 and the rotation axis 172A of the second motor 172 are perpendicular to each other. That is, the rotation axis direction of the base 110 relative to the display portion 52 is perpendicular to the rotation axis direction of the second cushion 180 relative to the first cushion 130. In addition, the first motor 122 drives the base 110 by using a mechanical structure such as a gear, a cam, a connecting rod, a rack, etc., and the second motor 172 can also drive the cushion seat 160 by using a mechanical structure such as a gear, a cam, a connecting rod, a rack, etc.

[0032] To sum up, in the head-mounted display device of the present invention, because a sensor is provided, the cushion can automatically rotate to an angle that best suits the forehead of each user, and is suitable for cooperating with the head shapes of different users, thereby helping to improve the comfort of the user wearing the head-mounted display device and thereby increase its stability when worn on the user's head.

Claims

1. A head mounted display device, characterized in that: include: Display unit; Headrest module, including: A base, pivotally connected to the display portion; A first driver connected between the base and the display portion, for driving the base to rotate relative to the display portion; A first soft pad, disposed on the base, for contacting the forehead of the user; A first sensor, disposed on the first cushion, for sensing the pressure applied by the forehead to the first cushion; and The controller is electrically connected to the first sensor and the first driver, and is used for controlling the first driver to drive the base or stop driving the base according to the sensing result of the first sensor.

2. The head mounted display device according to claim 1, characterized in that: The headrest module also includes: two cushion seats movably disposed on the base; A second driver is connected between the base and the soft cushion seats, and is used to drive the soft cushion seats to move relative to the base; Two second soft pads, disposed on the soft pad seats and located on both sides of the first soft pad, for contacting the forehead; and Two second sensors are arranged on the second soft pads to sense the pressure applied by the forehead to the second soft pads, wherein the controller is further electrically connected to the second sensors and the second driver to control the second driver to drive the soft pad seats or stop driving the soft pad seats according to the sensing results of the second sensors, so as to change the angle between the second soft pads and the first soft pad.

3. The head mounted display device according to claim 2, characterized in that: The utility model also comprises a knob coupled to the soft cushion seats, and is used for the user to manually drive the soft cushion seats to move relative to the base, so as to change the angle between the second soft cushions and the first soft cushion.

4. The head mounted display device according to claim 2, wherein: The first driver includes a first motor, and the second driver includes a second motor. The rotating shaft of the first motor and the rotating shaft of the second motor are perpendicular to each other.

5. The head mounted display device according to claim 1, characterized in that: The display unit is a virtual reality display unit or an augmented reality display unit.

6. The head mounted display device according to claim 1, characterized in that: The base is detachably pivoted to the display portion.

7. The head mounted display device according to claim 1, characterized in that: The controller signal is connected to the display unit.

8. The head mounted display device according to claim 1, characterized in that: The controller controls the first driver to drive the base or stop driving the base according to a comparison result between the sensing result of the first sensor and a threshold value set by the user.

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