Display apparatus and display method
A display apparatus according to an embodiment of the present technology includes a display unit, a motion sensor, a region setting unit, and an information generating unit. The display unit includes a tubular display whose directional range in which an image is displayed is larger than 180 degrees. The motion sensor detects an observer who observes the display. The region setting unit sets a first region visible from the observer and a second region different from the first region as regions on the display on the basis of a detection result of the motion sensor. The information generating unit generates main information displayed in the first region and illumination information regarding illumination light presented in accordance with the second region.
1. A display apparatus, comprising:
a display unit including a tubular display whose directional range in which an image is displayed is larger than 180 degrees;
a motion sensor that is configured to detect an observer who observes the tabular display; and
at least one processor configured to:
set a first region visible from the observer and a second region different from the first region as regions on the tabular display based on a detection result of the motion sensor; and
generate main information displayed in the first region and illumination information regarding illumination light presented in accordance with the second region.
2. The display apparatus according to claim 1 , wherein
the at least one processor is further configured to set the first region based on a directional range of the tabular display that is visible from one eye of the observer and based on a congestion angle when seeing the tabular display with both eyes of the observer.
3. The display apparatus according to claim 1 , wherein
the tabular display configures a cylindrical surface on which the image is displayed, and
provided that D denotes a diameter of the cylindrical surface, Lv denotes an observation distance from an axis of the cylindrical surface to an observation position, Le denotes a distance between left and right eyes of the observer, and θ denotes a display angle in a directional range that defines the first region, the at least one processor is further configured to calculate the display angle θ in accordance with Expression (1) below
[
Formula
1
]
θ
2
=
cos
-
1
(
D
2
/
Lv
2
+
(
Le
2
)
2
)
+
tan
-
1
(
L
e
2
/
Lv
)
.
Expression
(
1
)
4. The display apparatus according to claim 1 , wherein
the motion sensor is configured to detect a distance to the observer, and
the at least one processor is further configured to set the first region in accordance with the distance to the observer.
5. The display apparatus according to claim 1 , wherein
the motion sensor is configured to detect a plurality of observers simultaneously, and
the at least one processor is further configured to calculate a plurality of individual regions as regions on the tabular display visible from the plurality of observers and set a region that is a sum set of the plurality of individual regions as the first region.
6. The display apparatus according to claim 1 , wherein
the main information includes information about a main image displayed in the first region, and
the illumination information includes information about an enhancement image that is configured to generate the illumination light by being displayed in the second region for addition of an effect to display of the main image.
7. The display apparatus according to claim 6 , wherein
the at least one processor is further configured to generate the enhancement image in accordance with the main image or read the enhancement image associated with the main image.
8. The display apparatus according to claim 6 , wherein
the at least one processor is further configured to generate the enhancement image based on a basis of at least one of chromatic information, brightness information, or motion information regarding the main image.
9. The display apparatus according to claim 6 , wherein
the at least one processor is further configured to set a luminance of a portion of the enhancement image, which overlaps a display object included in the main image, to be lower than a luminance of another portion of the enhancement image.
10. The display apparatus according to claim 6 , wherein
the at least one processor is further configured to control a switching line to switch each of the main image and the enhancement image to a next image based on a movement along the tabular display.
11. The display apparatus according to claim 10 , wherein
the at least one processor is further configured to set an initial position of the switching line to be a position invisible from the observer and move the switching line along a circumferential direction of the tabular display, thereby consecutively switch the main image and the enhancement image.
12. The display apparatus according to claim 10 , wherein
the switching line includes a first line to switch the main image and a second line to switch the enhancement image, and
the at least one processor is further configured to set initial positions of the first line and the second line to be positions in a boundary between the main image and the enhancement image and move the first line and the second line simultaneously in a same movement direction as viewed from the observer, thereby switch the main image and the enhancement image in synchronization.
13. The display apparatus according to claim 1 , further comprising:
an illumination unit including a plurality of illumination devices configured to emit the illumination light to a periphery of the display apparatus, wherein
the illumination information includes information about an illumination pattern of the illumination light.
14. The display apparatus according to claim 13 , wherein
the plurality of illumination devices is provided outside the tabular display.
15. The display apparatus according to claim 13 , wherein
the tabular display is a transparent screen that is configured to diffuse light entering from a predetermined direction, and
the plurality of illumination devices is provided inside the tabular display so that the illumination light enters the display in a direction different from the predetermined direction.
16. The display apparatus according to claim 1 , wherein
the tabular display is a 360-degree display configured to display an image in an entire periphery.
17. The display apparatus according to claim 1 , wherein
the tabular display is either one of a transparent display that is configured to transmit visible light and an opaque display that does not transmit visible light.
18. The display apparatus according to claim 1 , wherein
the motion sensor includes at least one of a camera sensor, an infrared sensor, a pyroelectric sensor, an ultrasonic sensor, a time of flight (ToF) sensor, or a directional microphone.
19. A display method, comprising:
in a display apparatus:
detecting, via a motion sensor, an observer who observes a tubular display whose directional range in which an image is displayed is larger than 180 degrees;
setting a first region visible from the observer and a second region different from the first region as regions on the tabular display based on a detection result of the motion sensor; and
generating main information displayed in the first region and illumination information regarding illumination light presented in accordance with the second region.