Abstract: A display device includes a transparent light guide plate having an incident surface to display a plurality of patterns viewable in different directions and at least one light source facing a part of the incident surface. The light guide plate includes, on a first surface of the light guide plate, a plurality of prisms arranged along each of the plurality of patterns. The plurality of prisms have, for each pattern, reflection surfaces that reflect light emitted from the at least one light source and entering the light guide plate through the incident surface in a direction in which the pattern is viewable.

Abstract: A display device includes a transparent light guide plate having an incident surface to display a plurality of patterns viewable in different directions and at least one light source facing a part of the incident surface. The light guide plate includes, on a first surface of the light guide plate, a plurality of prisms arranged along each of the plurality of patterns. The plurality of prisms have, for each pattern, reflection surfaces that reflect light emitted from the at least one light source and entering the light guide plate through the incident surface in a direction in which the pattern is viewable.

Abstract: A display device includes a light guide plate 2 capable of displaying a plurality of patterns (21-1 to 21-9) and including an incident surface; a plurality of light sources (3-1 to 3-9) disposed opposite to the incident surface and corresponding to the plurality of patterns; a storage 5 configured to store a reference table that represents a relationship between a turn-on state number and a combination of light sources to be turned on among the plurality of light sources for each of a plurality of the turn-on state numbers; and a controller 7 configured to specify the combination of light sources to be turned on by referring to the reference table, the combination corresponding to the turn-on state number included in turn-on control information, and control turn-on and turn-off of each light source according to the combination of the light sources.

Abstract: An illumination device includes a transparent light guide plate having an end face being an incident surface and a bend between the incident surface and a distal end face opposite to the incident surface, and a light source facing the incident surface. The light guide plate includes first prisms on a first surface extending from the incident surface to the bend to reflect light from the light source entering the light guide plate through the incident surface and emit light through a second surface opposite to the first surface, and second prisms on a third surface extending from the distal end face to the bend to reflect light from the light source entering the light guide plate through the incident surface and emit light through a fourth surface opposite to the third surface.

Abstract: A display device has a projector having a light guide plate that guides light incident from an end portion and deflects the light guided to emit the light from a projection surface facing a viewer in a first direction, the projector being configured to emit light from the projection surface to project an image in a space viewable by the viewer, and a rotator configured to rotate the projector around the first direction. When a first end on the projection surface is located at a first position being an upper side in a second direction orthogonal to the first direction, the image is viewed as a stereoscopic image by the viewer. When the rotator rotates the projector and the first end is located at a second position different from the first position, the image is viewed as a planar image by the viewer.

Abstract: A display device includes a light guiding panel 2 having an incoming surface 2a formed on one of side surfaces, a plurality of light sources (3-1 to 3-4) respectively corresponding to a plurality of patterns that can be displayed, and a controller 6 for controlling on and off of the plurality of light sources.

Abstract: A display device includes: a light guide plate (2) configured to display at least one pattern, the light guide plate including at least one incident surface; a plurality of light sources (3-1 to 3-3) configured to emit light beams having different colors, the plurality of light sources being disposed to be opposed to any one of the at least one incident surface; and a controller (6) configured to control turn-on and turn-off of each light source according to turn-on control information designating one light source to be turned on.

Abstract: A display device includes a light guiding panel 2 having an incoming surface 2a formed on one of side surfaces, a plurality of light sources (3-1 to 3-4) respectively corresponding to a plurality of patterns that can be displayed, and a controller 6 for controlling on and off of the plurality of light sources.

Abstract: A display device includes a light guide plate 2 capable of displaying a plurality of patterns (21-1 to 21-9) and including an incident surface; a plurality of light sources (3-1 to 3-9) disposed opposite to the incident surface and corresponding to the plurality of patterns; a storage 5 configured to store a reference table that represents a relationship between a turn-on state number and a combination of light sources to be turned on among the plurality of light sources for each of a plurality of the turn-on state numbers; and a controller 7 configured to specify the combination of light sources to be turned on by referring to the reference table, the combination corresponding to the turn-on state number included in turn-on control information, and control turn-on and turn-off of each light source according to the combination of the light sources.

Abstract: A display device has a projector having a light guide plate that guides light incident from an end portion and deflects the light guided to emit the light from a projection surface facing a viewer in a first direction, the projector being configured to emit light from the projection surface to project an image in a space viewable by the viewer, and a rotator configured to rotate the projector around the first direction. When a first end on the projection surface is located at a first position being an upper side in a second direction orthogonal to the first direction, the image is viewed as a stereoscopic image by the viewer. When the rotator rotates the projector and the first end is located at a second position different from the first position, the image is viewed as a planar image by the viewer.