Abstract: According to an aspect, a display device includes: a display surface on which pixels each including sub-pixels of a plurality of colors are two-dimensionally arrayed; a reflective member; a first substrate provided with the reflective member; a second substrate arranged to face the first substrate; a color filter provided with filters of at least two colors corresponding to the sub-pixels; and a scattering member provided on the second substrate. A main viewing angle direction of the display device is a direction intersecting with the display surface. The color filter is formed such that a change in transmittance of the filters per pixel in the main viewing angle direction is smaller than a change in transmittance of the filters per pixel in a direction orthogonal to the main viewing angle direction in a direction parallel to the display surface.

Abstract: According an aspect, a liquid crystal display device includes: a first substrate on which a reflective electrode is arranged for each of a plurality of pixels; a second substrate; a liquid crystal layer arranged between the first substrate and the second substrate; and a wave plate in which liquid crystals are fixed so that an alignment direction of the liquid crystals is opposite to an alignment direction of the liquid crystal layer. The wave plate is arranged on a second substrate side of the liquid crystal layer.

Abstract: According to an aspect, a display device includes: an image display panel; a color conversion device including a signal processing unit and a signal output unit; a planar light-source device; and a light-source-device control unit. The signal processing unit includes a color conversion circuit that converts an input signal in a reference color area into a converted input signal generated in a definition color area where a chromaticity point of at least one of a first color, a second color, and a third color is inside of a reference color area, and a four-color generation circuit that generates an output signal and a light-source-device control signal from the converted input signal. The signal output unit outputs the drive signal to each sub-pixel based on the output signal. The light-source-device control unit outputs a drive voltage for emitting white light on the planar light-source device based on the light-source-device control signal.

Abstract: A liquid crystal display device includes a first substrate provided with a reflective electrode, a second substrate provided with a transparent electrode oppositely disposed to the reflective electrode, a liquid crystal layer disposed between the first second substrates, a polarization plate oppositely disposed to the first substrate with an interposition of the second substrate, and an anisotropic scattering member disposed between the second substrate and the polarization plate. A main view angle direction is set as a predetermined direction intersecting a display surface. The anisotropic scattering member has a scattering center and scatters light traveling along a scattering axis direction which is a direction having a predetermined angle range centered around the scattering center. The scattering axis direction coincides with the main view angle direction.

Abstract: A reflective liquid crystal display device includes a first substrate provided with a reflective electrode, a second substrate provided with a transparent electrode, a liquid crystal layer disposed between the first substrate and the second substrate, and an anisotropic scattering member formed on the second substrate. The anisotropic scattering member has first and second surfaces each including a first refractive index region and a second refractive index region having a refractive index different from that of the first refractive index region. A refractive index difference between the first refractive index region and the second refractive index region in the first surface is larger than that in the second surface. The anisotropic scattering member is disposed so that light enters from the first surface thereof and the light exits as scattered light from the second surface thereof. A phase difference is given to the light entered the anisotropic scattering member.

Abstract: A display device includes a reflective image display unit having a sheet-like anisotropic scattering member. The sheet-like anisotropic scattering member has a surface in which both a low refractive index area and a high refractive index area exist. The sheet-like anisotropic scattering member is disposed so that a light enters from a first surface thereof and exits as scattered light from a second surface thereof, when an extent of refractive index difference at a boundary or vicinity thereof between the low refractive index area and the high refractive index area is relatively large in the first surface and relatively small in the second surface.

Abstract: According to an aspect, a display device includes a first sub-pixel, a second sub-pixel, a third sub-pixel; and a fourth sub-pixel. A signal obtained based on at least an input signal for the first sub-pixel and an extension coefficient is supplied to the first sub-pixel. A signal obtained based on at least an input signal for the second sub-pixel and the extension coefficient is supplied to the second sub-pixel. A signal obtained based on at least an input signal for the third sub-pixel and the extension coefficient is supplied to the third sub-pixel. A signal obtained based on at least the input signal for the first sub-pixel, the input signal for the second sub-pixel, the input signal for the third sub-pixel, and the extension coefficient is supplied to the fourth sub-pixel. The extension coefficient varies based on at least a saturation of the input signals.

Abstract: According to an aspect, a display device includes an image display panel on which pixels each including sub-pixels for displaying a first color, a second color, a third color, and a fourth color are arranged, and a signal processing unit that converts an input value of an input signal for an input HSV color space into an output signal for an extended HSV color space. The signal processing unit divides the extended HSV color space into a plurality of spaces, sets limit proportion values different from each other with respect to at least two spaces of the divided spaces respectively, calculates an extension coefficient ? with respect to the input signal by using the input signal and a limit proportion value set with respect to a space according to the input signal, and calculates the output signal based on at least the input signal and the extension coefficient ?.

Abstract: A liquid crystal display which is a reflective liquid crystal display displaying an image by controlling reflectance of ambient light includes: a front substrate; a rear substrate; and a liquid crystal material layer disposed between the front substrate and the rear substrate, wherein the rear substrate is provided with a plurality of reflective electrodes formed on a surface side opposite to the liquid crystal material layer, and a specular light reflecting member reflecting ambient light which is directed to a rear surface side of the rear substrate through a gap between the adjacent reflective electrodes toward the front substrate side.

Abstract: Disclosed herein is a display device including a reflection type image display portion having a sheet-like anisotropic scattering member. In an area, in an in-plane direction, of the anisotropic scattering member, a low-refractive index area and a high-refractive index area are disposed in a mixture style. The anisotropic scattering member is disposed in such a way that a light is scattered when an outside light is made incident from a surface side on which a degree of a change in a refractive index in a vicinity of a boundary between the low-refractive index area and the high-refractive index area is relatively large, and is emitted from a surface side on which the degree of the change in the refractive index in the vicinity of the boundary between the low-refractive index area and the high-refractive index area is relatively small.

Abstract: An anisotropic scatterer is configured to allow a scattering characteristic of light in a display region of a display device to have an angle dependence, and is configured to change the scattering characteristic of the light continuously in an in-plane direction.

Abstract: A liquid crystal display device includes, in sequence, a first substrate, a liquid crystal layer, and a second substrate. The first substrate, the liquid crystal layer, and the second substrate are disposed in a subpixel having a transmissive portion for performing transmissive display and a reflective portion for performing reflective display. The first substrate includes a first electrode and a second electrode. The second substrate includes a third electrode. The first electrode and the second electrode are disposed in the transmissive portion and at least the first electrode and the third electrode are disposed in the reflective portion. Alignment of the liquid crystal layer is controlled by an electric field occurring between the first electrode and the second electrode in the transmissive portion and by an electric field occurring between the first electrode and the third electrode in the reflective portion.

Abstract: A liquid crystal display device includes a first substrate, a second substrate, a liquid crystal layer arranged between the first substrate and the second substrate, a plurality of pixels each one of which has a tranmissive display portion for performing a tranmissive display operation and a reflective display portion for performing a reflective display operation, a first electrode provided in the first substrate, a second electrode provided in the first substrate and a third electrode provided in one of the first substrate and the second substrate. The first electrode is arranged both in the tranmissive display portion and in the reflective display portion. The second electrode is arranged in the tranmissive display portion. The first electrode and the second electrode are configured to control an alignment of liquid crystal molecules of the liquid crystal layer.

Abstract: A display includes: a reflective or semi-transmissive display panel; a light-scattering layer disposed on a top surface of the display panel; and an auxiliary light source. The light-scattering layer is an anisotropic front scattering layer which relatively strongly scatters light incident from a specific direction within a first angle range and a second angle range. The light-scattering layer has a first scattering central axis and a second scattering central axis. The first angle range and a third angle range overlap each other in an angle sub-range not including a first specific angle and an incident-plane symmetrical angle symmetrical to a second specific angle. The auxiliary light source allows light therefrom incident from a side closer to the auxiliary light source or from a side closer to the display panel to mainly enter the light-scattering layer within the second angle range.

Abstract: An orientation controller which divides a pixel into a plurality of different priority alignment regions and an additional orientation controller are provided in a pixel. The additional orientation controller is provided at least at an end of a pixel of a long-side alignment region formed along the long side of the pixel among the divided alignment regions, for example, around a center position of the long side of the pixel. The additional orientation controller can be realized, for example, by forming a cutout pattern in a side of a first electrode (pixel electrode) forming a part of the pixel. Because the alignment direction is also controlled by the additional orientation controller, the alignment of liquid crystal in this region is stabilized.

Abstract: A liquid crystal display device includes a first substrate having a first electrode and a second electrode, a second substrate, a liquid crystal interposed between the first substrate and the second substrate, pixels each having a transmissive portion for performing a transmissive display and a reflective portion for performing a reflective display, and a driving circuit driving the pixels. Here, a third electrode is disposed in the second substrate opposed to the first substrate with the liquid crystal interposed therebetween. The first electrode is disposed in the transmissive portion along with the second electrode and is also disposed in the reflective portion along with the third electrode. The driving circuit is provided to independently apply potentials to the second electrode and the third electrode.

Abstract: A liquid crystal display device includes, in sequence, a first substrate, a liquid crystal layer, and a second substrate. The first substrate, the liquid crystal layer, and the second substrate are disposed in a subpixel having a transmissive portion for performing transmissive display and a reflective portion for performing reflective display. The first substrate includes a first electrode and a second electrode. The second substrate includes a third electrode. The first electrode and the second electrode are disposed in the transmissive portion and at least the first electrode and the third electrode are disposed in the reflective portion. Alignment of the liquid crystal layer is controlled by an electric field occurring between the first electrode and the second electrode in the transmissive portion and by an electric field occurring between the first electrode and the third electrode in the reflective portion.

Abstract: A liquid crystal device includes: a pixel for outputting a specified color light, which is provided with liquid crystals and an electrode for driving the liquid crystals and outputs light of the specified color; a pixel for controlling luminance and color purity, which outputs a control light for controlling the luminance and the color purity of the output light of the specified color; and a driving unit driving the pixel for outputting a specified color light, and the pixel for controlling luminance and color purity based on brightness information that indicates the brightness of an external environmental light.

Abstract: A liquid crystal display device includes, in sequence, a first substrate, a liquid crystal layer, and a second substrate. The first substrate, the liquid crystal layer, and the second substrate are disposed in a subpixel having a transmissive portion for performing transmissive display and a reflective portion for performing reflective display. The first substrate includes a first electrode and a second electrode. The second substrate includes a third electrode. The first electrode and the second electrode are disposed in the transmissive portion and at least the first electrode and the third electrode are disposed in the reflective portion. Alignment of the liquid crystal layer is controlled by an electric field occurring between the first electrode and the second electrode in the transmissive portion and by an electric field occurring between the first electrode and the third electrode in the reflective portion.

Abstract: An orientation controller which divides a pixel into a plurality of different priority alignment regions and an additional orientation controller are provided in a pixel. The additional orientation controller is provided at least at an end of a pixel of a long-side alignment region formed along the long side of the pixel among the divided alignment regions, for example, around a center position of the long side of the pixel. The additional orientation controller can be realized, for example, by forming a cutout pattern in a side of a first electrode (pixel electrode) forming a part of the pixel. Because the alignment direction is also controlled by the additional orientation controller, the alignment of liquid crystal in this region is stabilized.