Head-mounted display controlling method and head-mounted display system

• US 20010006376A1
• Filed: 12/27/2000
• Published: 07/05/2001
• Est. Priority Date: 12/28/1999
• Status: Active Grant

• Current Assignee: AU Optronics Corporation
• Original Assignee: NEC Corporation
• Inventors: Numa, Takayuki
• Granted Patent: US 6,633,267 B2
• Time in Patent Office: Days
• US Class Current: 345/7
• CPC Class Codes: G02B 2027/0187 slaved to motion of at least a part of the body of the user, e.g. head, eye
• CPC Class Codes: G02B 27/017 Head mounted
• CPC Class Codes: G06F 3/011 Arrangements for interaction with the human body, e.g. for user immersion in virtual reality blind teaching G09B21/00

Abstract

The present invention provides an HMD system for reducing a harmful influence on eyes and for providing enhanced presence. A screen display portion is moved by means of a driving mechanism based on a control signal output from a video playback device. Furthermore, the screen display portion 2 is moved according to how a wearer has reacted. Therefore, an intention of a producer of video software can be reflected in the HMD. Therefore, even in a case of a two-dimensional video without bidirectional property and with inflexible video unfolding, enhanced presence can be reliably provided to the wearer. Because a relationship between positions of eyeballs and the screen display portion is not fixed, the harmful influence on eyesight can be reduced. Furthermore, because the system has a driving mechanism 3, a gyro sensor portion 4, and a control portion 5 for the screen display portion 2, the screen display portion can be moved arbitrarily in any direction and the above control can be carried out accurately.

Claims

1. A head-mounted display controlling method for causing a screen display portion provided in a head-mounted display apparatus to move, wherein said screen display portion is moved forward or backward in front of a wearer of said apparatus when an image signal is input to said screen display portion and a predetermined time period has passed.

2. A head-mounted display controlling method for causing a screen display portion provided in a head-mounted display apparatus to move based on a control signal output from a video playback device, wherein said screen display portion is selectively moved in any one of directions selected from a lateral direction, a vertical direction, and a diagonal direction that is synthesized by said lateral direction and said vertical direction, with keeping a distance between a wearer of said apparatus and said screen display portion at a constant value.

4. A head-mounted display controlling method according to

claim 2

, wherein movement of said screen display portion is carried out when said wearer'"'"'s head is moved.

5. A head-mounted display controlling method according to claims 2, wherein said movement of said screen display portion is carried out at a predetermined speed.

3. A head-mounted display controlling method for causing a screen display portion provided in a head-mounted display apparatus to move based on a control signal output from a video playback device, wherein said screen display portion is selectively moved in any one of directions selected from a lateral direction, a vertical direction, and a diagonal direction that is synthesized by said lateral direction and said vertical direction, with keeping a distance between a wearer of said apparatus and said screen display portion at a constant value or moved forward or backward in front of said wearer.

6. A head-mounted display system for causing an image signal from a video playback device to be displayed on a screen display portion provided in a head-mounted display apparatus, said head-mounted display system comprising:

a driving means for moving said screen display portion forward or backward in front of a wearer of said apparatus; and

a control means for controlling so as to move said screen display portion forward or backward by means of said driving means when said image signal is input to said head-mounted display apparatus at every time when a predetermined time period has passed.

7. A head-mounted display system for causing an image signal from a video playback device to be displayed on a screen display portion provided in a head-mounted display apparatus and for causing said screen display portion to move based on a control signal output from said video playback device, said head-mounted display system comprising:

a driving means for moving said screen display portion in any one of directions selected from a lateral direction, a vertical direction, and a diagonal direction that is synthesized by said lateral direction and said vertical direction, with keeping a distance between a wearer of said apparatus and said screen display portion maintained at a constant value;

a detecting means for detecting a movement of said head-mounted display apparatus; and

a control means for controlling so as to move said screen display portion by means of said driving means based on a detection signal output from said detecting means and said control signal output from said video playback device.

8. A head-mounted display system for causing an image signal from a video playback device to be displayed on a screen display portion provided in a head-mounted display apparatus and for causing said screen display portion to move based on a control signal output from said video playback device, said head-mounted display system comprising:

a driving means for moving said screen display portion in any one of directions selected from a lateral direction, a vertical direction, and a diagonal direction that is synthesized by said lateral direction and said vertical direction, with keeping a distance between a wearer of said apparatus and said screen display portion at a constant value and for moving said screen display portion forward or backward in front of said wearer;

a detecting means for detecting movement of said head-mounted display apparatus; and

a control means for controlling so as to move said screen display portion by means of said driving means based on a detection signal output from said detecting means and said control signal output from said video playback device.

9. A head-mounted display system according to

claim 8

, wherein said control means has a means to output a feedback signal to said video playback device based on a detection result of said detecting means and to carry out a display of an image based on control signal output from said video playback device.

10. A head-mounted display system according to claims 8, wherein said control means controls a movement of said screen display portion at a predetermined speed.

11. A head-mounted display system according to claims 8, wherein said control means has a means for communicating with said video playback device in a bidirectional based on detection result obtained by said detecting means.