Abstract: According to one embodiment, a photodetector includes a sensor unit including at least one photosensor, a liquid crystal element including a first substrate includes a plurality of first control electrodes, a second substrate including a second control electrode, and a liquid crystal layer held between the first substrate and the second substrate, a liquid crystal controller which controls a voltage to be applied to the liquid crystal layer for forming a first lens that is opposed to the photosensor in the liquid crystal layer, and a sensor controller which controls the sensor.

Abstract: According to one embodiment, a display device, includes a display panel having a light transmission property, the display panel includes a first sub-pixel exhibiting a first color, a second sub-pixel exhibiting a second color, a third sub-pixel exhibiting a third color, a dummy pixel exhibiting a fourth color having brightness lower than the first to third colors, and a light modulating layer capable of changing a light transmission property and a light scattering property of regions corresponding to the first to third sub-pixels and the dummy pixel, respectively.

Abstract: According to one embodiment, a display device includes a display panel including a first sub display area and a second sub display area, and an illumination device, wherein the illumination device includes a first light source opposed to the first sub display area, a second light source opposed to the second sub display area, and a partition positioned between the first and second light sources and the display panel, and the partition includes a first side surface surrounding the first light source, a second side surface surrounding the second light source, and a connector which connects the first side surface and the second side surface, and the connector is formed of curved surfaces, or two or more flat surfaces, or a combination of curved surfaces and flat surfaces.

Abstract: An input device includes a first substrate, a first light-emitting element unit, and a third electrode unit. The first substrate has a first surface and a second surface. The first light-emitting element includes a first electrode unit formed on the second surface, a second electrode unit formed in a layer different from that of the first electrode unit, and a luminescent layer electrically in contact with at least a part of the first electrode unit and a part of the second electrode unit, and formed between the first electrode unit and the second electrode unit. The third electrode unit is insulated from the first electrode unit and detects a change in an electric field between the first electrode unit and the third electrode unit depending on coordinates of a proximity object present at a position overlapping with the first surface in planar view.

Abstract: According to an aspect, a display device includes: a display unit including a plurality of pixels; and an image processor configured to generate an image signal for displaying an image on the display unit. When the image processor causes the display unit to display the image such that a first pixel region that displays a first color is adjacent to a second pixel region that displays a second color and that has luminance higher than luminance of the first color, the image processor applies gain to an image signal corresponding to a pixel in the second pixel region to make brightness of the second pixel region lower than brightness of the first pixel region.

Abstract: According to one embodiment, a display device includes a first arrangement layer and a second arrangement layer. The first layer includes a first pixel, a second pixel, and a third pixel are arranged periodically in one direction. The second layer is opposed to the first layer, and the second layer includes a first element, a second element, and a third element which are arranged periodically to correspond to the first pixel, the second pixel, and the third pixel, respectively, and separate emission light to light of wavelength corresponding to a first color, light of wavelength corresponding to a second color, and light of wavelength corresponding to a third color to be emitted on the first pixel, the second pixel, and the third pixel, respectively.

Abstract: According to one embodiment, a photodetector includes a sensor unit including at least one photosensor, a liquid crystal element including a first substrate includes a plurality of first control electrodes, a second substrate including a second control electrode, and a liquid crystal layer held between the first substrate and the second substrate, a liquid crystal controller which controls a voltage to be applied to the liquid crystal layer for forming a first lens that is opposed to the photosensor in the liquid crystal layer, and a sensor controller which controls the sensor unit.

Abstract: According to an aspect, a display device includes first to fourth sub-pixels. The first to fourth sub-pixels are each divided into N (N?2) sub-divided pixels having different areas and can perform N-bit gradation display. Gradation display for a mixed color combining two types out of the first to fourth sub-pixels includes: the N-bit gradation display including 2N-step gradation; and halftone gradation display. In first and second gradation display, an area ratio between the sub-divided pixels driven and those not driven in one of the two types is equal to that in the other of the two types. In the second gradation display, a total area ratio of the sub-divided pixels driven to those not driven is greater than that in the first gradation display. In the halftone gradation display, an area ratio between the sub-divided pixels driven and those not driven is different between the two types.

Abstract: According to one embodiment, a display device includes a polarization separation element which transmits first polarized light, and reflects second polarized light, a first optical modulation unit which displays a first image by using transmitted light, a second optical modulation unit which displays a second image by using reflected light, and a projector which projects the first image onto a first projection area of a projection plane, and projects the second image onto a second projection area different from the first projection area of the projection plane.

Abstract: According to one embodiment, a display device includes a display panel including a first sub display area and a second sub display area, and an illumination device, wherein the illumination device includes a first light source opposed to the first sub display area, a second light source opposed to the second sub display area, and a partition positioned between the first and second light sources and the display panel, and the partition includes a first side surface surrounding the first light source, a second side surface surrounding the second light source, and a connector which connects the first side surface and the second side surface, and the connector is formed of curved surfaces, or two or more flat surfaces, or a combination of curved surfaces and flat surfaces.

Abstract: According to one embodiment, a display device includes an optical modulation element configured to emit image light corresponding to an image by using illumination light from an illumination device, a polarization control element configured to emit first polarized light, and second polarized light on the basis of the image light receiving from the optical modulation element, a polarization separation element configured to transmit the first polarized light as transmitted light and reflect the second polarized light as reflected light, and a projector configured to project the transmitted light onto a first projection area of a projection plane, and projects reflected light onto a second projection area of the projection plane.

Abstract: According to an aspect, a display device includes: a controller; and a pixel including: first to fourth sub-pixels including respective first to fourth color filters transmitting light having respective spectrum peaks falling on a spectrum of reddish green, a spectrum of bluish green, a spectrum of red, and a spectrum of blue, respectively. The first to fourth sub-pixels each include a reflective electrode reflecting light transmitted through the color filter. The first to fourth sub-pixels are each divided into sub-divided pixels having different areas to perform multiple gradation expression through a combination of whether each of the sub-divided pixels reflects light. The controller stores patterns of combinations of whether each of the sub-divided pixels reflects light according to an input signal, and controls operations of the sub-divided pixels through use of any one of the patterns based on a predetermined condition including light intensity.

Abstract: According to an aspect, a display device includes a display unit, an illumination unit, a measurement unit, and a control unit. When pixels that are expected to perform display output at identical luminance are adjacent to each other in adjacent partial regions, and when a difference in the intensity of the internal light between light emitting regions corresponding to the adjacent partial regions is equal to or larger than a predetermined threshold, the control unit performs correction to increase luminance of a predetermined number of pixels belonging to a first partial region corresponding to a first light emitting region the intensity of the internal light from which is lower among the adjacent partial regions. The predetermined number of pixels are located closer to a second partial region corresponding to a second light emitting region the intensity of the internal light from which is higher among the adjacent partial regions.

Abstract: According to one embodiment, a display device includes a first arrangement layer and a second arrangement layer. The first layer includes a first pixel, a second pixel, and a third pixel are arranged periodically in one direction. The second layer is opposed to the first layer, and the second layer includes a first element, a second element, and a third element which are arranged periodically to correspond to the first pixel, the second pixel, and the third pixel, respectively, and separate emission light to light of wavelength corresponding to a first color, light of wavelength corresponding to a second color, and light of wavelength corresponding to a third color to be emitted on the first pixel, the second pixel, and the third pixel, respectively.

Abstract: An input device includes a first substrate, a light-emitting element, and a third electrode unit. The first substrate has first and second surfaces. The light-emitting element unit includes: a first conductive electrode unit including first conductive layers; a second conductive electrode unit including second conductive layers each having a size overlapping with the first conductive layer in planar view; and luminescent layers conducted with at least a part of the first electrode unit, each provided between the first and second electrode units and conducted with the first conductive layer and the second conductive layer overlapping with the first conductive layer in planar view. The third electrode unit is insulated from the first conductive layers and detects a change in an electric field between the first conductive layers and the third electrode unit depending on coordinates of a proximity object at a position overlapping with the first surface in planar view.

Abstract: According to one embodiment, an illumination device includes a light source unit which emits light, a modulation element includes a modulation portion which modulates incident light, and a non-modulation portion which is adjacent to the modulation portion, and a liquid crystal element located between the light source unit and the modulation element, the liquid crystal element forming a lens between the light source unit and the modulation portion.

Abstract: According to one embodiment, a display device includes an optical modulation element configured to emit image light corresponding to an image by using illumination light from an illumination device, a polarization control element configured to emit first polarized light, and second polarized light on the basis of the image light receiving from the optical modulation element, a polarization separation element configured to transmit the first polarized light as transmitted light and reflect the second polarized light as reflected light, and a projector configured to project the transmitted light onto a first projection area of a projection plane, and projects reflected light onto a second projection area of the projection plane.

Abstract: According to one embodiment, a liquid crystal display device includes scanning and video signal lines, pixel electrodes and first and second common electrodes. The pixel electrodes include first and second pixel electrodes with linear electrodes and connection portion. In the first pixel electrodes, the linear electrodes overlap the first common electrode, and the connection portion overlaps first slit between the first and second common electrodes. In the second pixel electrodes, the linear electrodes overlap the second common electrode, and the connection portion overlaps second slit between the second and first common electrodes. Different potentials are applied to the first and second common electrodes.

Abstract: According to one embodiment, a display device comprises first and second substrate having light transmissivity and opposing each other, a light-modulating layer arranged between the first substrate and the second substrate, a light source unit which illuminates the light-modulating layer from an outer side of a position which opposes a display area, along a normal direction, first to third color filters of different colors arranged on the first substrate, and first to third electrodes which oppose the first to third color filters, respectively, the light-modulating layer being able to change light dispersibility of each of regions which oppose the first to third color filters according to the electric field produced by each respective one of the first to third electrodes.

Abstract: According to an aspect, a display device includes: a controller; and a pixel including: first to fourth sub-pixels including respective first to fourth color filters transmitting light having respective spectrum peaks falling on a spectrum of reddish green, a spectrum of bluish green, a spectrum of red, and a spectrum of blue, respectively. The first to fourth sub-pixels each include a reflective electrode reflecting light transmitted through the color filter. The first to fourth sub-pixels are each divided into sub-divided pixels having different areas to perform multiple gradation expression through a combination of whether each of the sub-divided pixels reflects light. The controller stores patterns of combinations of whether each of the sub-divided pixels reflects light according to an input signal, and controls operations of the sub-divided pixels through use of any one of the patterns based on a predetermined condition including light intensity.