Display device, head-mount type display device, method of controlling display device, and method of controlling head-mount type display device

A transmissive head-mount type display device comprising:

• an image display section adapted to generate image light representing an image, allow a user to visually recognize the image light in a state of being worn on a head of the user, and transmit an external sight;
• a sound acquisition section adapted to obtain a sound;
• a conversion section adapted to convert the sound into a character image expressing the sound as an image using characters;
• an eye direction estimation section adapted to estimate an eye direction of the user;
• and
• a display position setting section adapted to set an image display position, which is a position where character image light representing the character image is allowed to be visually recognized in a visual field of the user, based on a variation in the eye direction,
• wherein
• the eye direction estimation section estimates a specific value of at least one of an angular velocity and a variation in angle of the eye direction with reference to a display state in which the character image light is recognized by the user, and
• the display position setting section sets the image display position at a part other than a central part in the visual field of the user in a case in which the specific value exceeds a predetermined value.

A method of controlling a transmissive display device, comprising:

• providing an image display section adapted to generate image light representing an image, allow a user to visually recognize the image light in a state of being worn on a head of the user, and transmit an external sight;
• obtaining a sound;
• converting the sound into a character image expressing the sound as an image using characters;
• generating character image light as image light representing the character image, allowing the user to visually recognize the character image light in the state in which the image display section is worn on the head of the user, and transmitting the external sight;
• setting a specific direction, the specific direction being a direction from a sound acquisition section to a sound source;
• estimating an eye direction of the user;
• and
• setting a position, where the character image light is allowed to be visually recognized in a visual field of the user, based on the specific direction,
• wherein
• the position is set based on a relationship between the specific direction and the eye direction,
• the position is set to a vicinity corresponding to the specific direction in the visual field of the user in a case in which a specific angle, which is an angle formed between the eye direction and the specific direction, is smaller than a first threshold value, and
• the position is set independently of the specific direction in a case in which the specific angle is one of equal to and larger than the first threshold value.

A method of controlling a transmissive head-mount type display device, comprising:

• providing an image display section adapted to generate image light representing an image, allow a user to visually recognize the image light in a state of being worn on a head of the user, and transmit an external sight;
• obtaining a sound;
• converting the sound into a character image expressing the sound as an image using characters;
• generating character image light as the image light representing the character image, allowing the user to visually recognize the character image light in the state in which the image display section is worn on the head of the user, and transmitting the external sight;
• estimating an eye direction of the user;
• and
• setting a position, where the character image light is allowed to be visually recognized in a visual field of the user, based on the eye direction,
• wherein
• in the estimating of the eye direction, a specific value is estimated of at least one of an angular velocity and a variation in angle of the eye direction with reference to a display state in which the character image light is recognized by the user, and
• the position where the character image light is allowed to be visually recognized in the visual field of the user is set at a part other than a central part in the visual field of the user in a case in which the specific value exceeds a predetermined value.

A transmissive display device comprising:

• an image display section adapted to generate image light representing an image, allow a user to visually recognize the image light in a state of being worn on the head of the user, and transmit an external sight;
• a sound acquisition section adapted to obtain a sound;
• a conversion section adapted to convert the sound into a character image expressing the sound as an image using characters;
• a specific direction setting section adapted to set a specific direction, the specific direction being a direction from the sound acquisition section to a sound source;
• a display position setting section adapted to set an image display position, which is a position where character image light representing the character image is allowed to be visually recognized in a visual field of the user, based on the specific direction;
• an eye direction estimation section adapted to estimate an eye direction of the user;
• and
• an image acquisition section adapted to obtain an image of the external sight,
• wherein the image display section
• generates specific direction image light, which is image light representing an image in the specific direction obtained by the image acquisition section, and allows the user to visually recognize the specific direction image light in a case in which a specific angle, which is an angle formed between the eye direction and the specific direction, is equal to or larger than a threshold value, and
• stops generating the specific direction image light in a case in which the specific angle is smaller than the threshold value, and
• wherein the display position setting section
• sets the image display position based on a relationship between the specific direction and the eye direction,
• sets the position, where the specific direction image light is allowed to be recognized, in a vicinity of the image display position, and so as to fail to overlap the image display position, in a case in which the specific angle is equal to or larger than the threshold value, and
• sets the image display position in a vicinity of a position corresponding to the specific direction in the visual field of the user in a case in which the specific angle is smaller than the threshold value.