Abstract: To provide a realistic viewing experience by displaying a virtual image in a state of being superimposed on a background. To achieve the object described above, a display device according to an embodiment of the present technology includes a display unit group. The display unit group includes at least two or more sets of display units disposed in a circumferential direction. Each set of the display units includes a screen onto which an object image is projected from a projection apparatus, and a reflective holographic lens that diffracts the object image and delivers the object image to a pupil of an observer. This makes it possible to provide a realistic viewing experience.

Abstract: An image display apparatus according to an embodiment of the present technology includes a plurality of display units. Each of the display units includes a screen on which an object image is formed; and a diffractive optical element that includes a first surface and a second surface that is situated opposite to the first surface, the diffractive optical element diffracting image light of the object image that enters the first surface, and causing the image light to exit the first surface, the diffractive optical element displaying a virtual image of the object image on a side of the second surface such that the virtual image is superimposed on a background. The diffractive optical elements of a plurality of the diffractive optical elements included in the display units are each arranged to at least partially surround a specified axis in a state in which the second surface faces the specified axis.

Abstract: An image display apparatus according to an embodiment of the present technology includes a first screen and a second screen. The first screen includes an image surface on which an object image is formed, the first screen obliquely projecting the object image from the image surface. The second screen includes an incident surface that is arranged parallel to the image surface and on which image light of the object image is incident, the second screen diffracting the image light in an exit direction different from a specular-reflection direction that corresponds to a direction of incidence of the image light on the incident surface, the second screen forming a virtual image parallel to the object image.

Abstract: An optical device includes a first A deflecting member, a first B deflecting member, a first C deflecting member, a second A deflecting member, a second B deflecting member, and a second C deflecting member. Light emitted from an image forming device that enters the first A deflecting member and is emitted toward a pupil of an observer via the first B deflecting member and the first C deflecting member. Light emitted from the image forming device that enters the second A deflecting member is emitted toward the pupil of the observer via the second B deflecting member and the second C deflecting member. A direction of light deflected by the first A deflecting member that is orthogonally projected on a light guide plate is opposite a direction of light deflected by the second A deflecting member that is orthogonally projected on the light guide plate.

Abstract: The optical device includes a first light guide plate, a first deflection unit 30 including three deflection members, a second light guide plate, and a first deflection unit including three deflection members, a part of a light emitted from the image formation device is incident on the first deflection member and emitted from the third deflection member via the light guide plate and the second deflection member, and when a propagation direction of a light deflected by the second deflection member in the first light guide plate is a first direction, and a propagation direction of a light deflected by the second deflection member in the second light guide plate is a second direction, the first direction is non-parallel to the second direction and is opposite to the second direction.

Abstract: An optical device includes a first A deflecting member, a first B deflecting member, a first C deflecting member, a second A deflecting member, a second B deflecting member, and a second C deflecting member. Light emitted from an image forming device that enters the first A deflecting member and is emitted toward a pupil of an observer via the first B deflecting member and the first C deflecting member. Light emitted from the image forming device that enters the second A deflecting member is emitted toward the pupil of the observer via the second B deflecting member and the second C deflecting member. A direction of light deflected by the first A deflecting member that is orthogonally projected on a light guide plate is opposite a direction of light deflected by the second A deflecting member that is orthogonally projected on the light guide plate.

Abstract: A reversible recording medium of an embodiment of the present disclosure includes a support base and a recording layer. The recording layer is provided on the support base and reversibly changes between a recorded state and a deleted state. A chroma difference ?C* between the support base and the recording layer satisfies the relational expression (1) where an absorption spectrum in a visible region of the recording layer in the deleted state and an absorption spectrum in a visible region of the support base are each denoted by L*a*b*.

Abstract: A display unit includes a plurality of pixels arranged in a two-dimensional matrix. An image is displayed in a first display mode and a second display mode. In the first display mode, one pixel is configured of a set including J (where J is an integer of 2 or more) first unit pixels emitting a first color, J second unit pixels emitting a second color, and J third unit pixels emitting a third color, and image display is performed through control of operation of each of the unit pixels. In the second display mode, one pixel is configured of a set including j (where j is an integer of 1 or more and less than J) first unit pixels, j second unit pixels, and j third unit pixels, and image display is performed through control of operation of each of the unit pixels.

Abstract: A display unit of the present disclosure includes a display layer and a color filter. The display layer has a plurality of pixels each including an electrophoretic element. The color filter is provided on a display side of the display layer on a portion of each of the pixels. The electrophoretic element in each of the pixels includes migrating particles, and one of the migrating particles and the color filter is a primary color, and the other is a color complementary to the primary color.

Abstract: A display unit includes: a display layer including a plurality of pixels each including an electrophoretic device; and a color filter provided on a display side of the display layer and including filter layers each having one of a plurality of colors, the filter layers facing the respective pixels, in which a distance between the display layer and the color filter is not more than 25 percent of a pixel pitch in the display layer.

Abstract: An image signal for red color display, an image signal for green color display, and an image signal for blue color display which correspond to a pixel are denoted as reference symbol RnL, reference symbol GnL, reference symbol BnL, respectively, a minimum value thereof is denoted as MinRGBnL, and a threshold defined as a predetermined value is denoted as reference symbol TH1. In a case, where MinRGBnL?TH1 holds: the value of the signal for the white color sub-pixel is MinRGBnL/TH1, the value of the signal for the red color sub-pixel is RnL?MinRGBnL, the value of the signal for the green color sub-pixel is GnL?MinRGBnL, and the value of the signal for the blue color sub-pixel is BnL?MinRGBnL.

Abstract: An electrophoretic display device with a plurality of first particles which migrate between a remain region and a display region in response to an electric field, as well as a plurality of non-migrating second particles which are fixedly disposed between the remain and display regions and which (a) allow the plurality of first particles to pass between the remain and display regions in response to the electric field, and (b) cover the plurality of first particles when the first particles are disposed in the remain region.

Abstract: A display unit includes: a display layer including a plurality of pixels each including an electrophoretic device; and a color filter provided on a display side of the display layer and including filter layers each having one of a plurality of colors, the filter layers facing the respective pixels, in which a distance between the display layer and the color filter is not more than 25 percent of a pixel pitch in the display layer.

Abstract: Provided is a display unit capable of improving display performance. The display unit includes an electrophoretic particle disposed between a pair of electrodes for each pixel; and a voltage control circuit applying a voltage for each pixel, to move the electrophoretic particle. The voltage control circuit counts, for each pixel, a number of applications of a first voltage and a number of applications of a second voltage, the first voltage being applied to move the electrophoretic particle towards one of the electrodes, and the second voltage being applied to move the electrophoretic particle towards the other of the electrodes. Further, at an arbitrary timing following start of display, when the number of applications of the second voltage in part of pixels is smaller than that in other pixel, the voltage control circuit applies the second voltage to the pixel with the smaller number of applications, to bring this smaller number of applications closer to the number of applications in the other pixel.

Abstract: An image display unit, includes: an image display section having pixels each including red, green, blue, and white pixels; and a signal generating section configured to generate red, green, blue, and white sub-pixel signals, the signal generating section being configured to determine values of the red, green, and blue sub-pixel signals Rcvt, Gcvt, and Bcvt, based on a first matrix and a second matrix, with use of a coefficient ‘Purity’, an additive-color-mixture matrix, and a purity coefficient ‘?’, and being configured to employ a value of the white sub-pixel signal Wcvt as a value of min (RnL, GnL, BnL), where the min (RnL, GnL, BnL) represents a minimum value of the red-, green-, and blue-display image signal RnL, GnL, and BnL that are linearized and normalized and are provided for each of the pixels.

Abstract: An optical member includes a plate like light diffusion member having a light incidence surface and a light emitting surface opposed each other, a phosphor layer provided directly on the light emitting surface of the light diffusion member and containing a phosphor that converts a color light to another color light, and a protection layer formed on a surface on the side opposite to the light diffusion member, of the phosphor layer. A moisture vapor transmission rate of the light diffusion member is 2 g/m2/day or less.

Abstract: An optical member realizing suppressed occurrence of a light loss between a phosphor layer performing color conversion and itself, and a display device using the same is provided. The optical member includes a base member having two opposed surfaces, and a phosphor layer provided integrally with one surface of the base member and containing a phosphor that converts a color light to another color light.

Abstract: An image signal for red color display, an image signal for green color display, and an image signal for blue color display which correspond to a pixel are denoted as reference symbol RnL, reference symbol GnL, reference symbol BnL, respectively, a minimum value thereof is denoted as MinRGBnL, and a threshold defined as a predetermined value is denoted as reference symbol TH1. In a case, where MinRGBnL?TH1 holds: the value of the signal for the white color sub-pixel is MinRGBnL/TH1, the value of the signal for the red color sub-pixel is RnL?MinRGBnL, the value of the signal for the green color sub-pixel is GnL?MinRGBnL, and the value of the signal for the blue color sub-pixel is BnL?MinRGBnL.

Abstract: A display unit includes: a first substrate; a second substrate facing the first substrate; a display layer provided between the first substrate and the second substrate and allowed to control light transmission or light reflection; and a seal layer including an additive and provided between the first substrate and the display layer.

Abstract: An electrophoretic display device comprising a plurality of first particles configured to migrate between a remain region and a display region in response to an electric field, as well as a plurality of non-migrating second particles fixedly disposed between the remain and display regions and configured to (a) allow the plurality of first particles to pass between the remain and display regions in response to the electric field, and (b) cover the plurality of first particles when the first particles are disposed in the remain region.