A display device (10) includes a light source (19), a light guide plate (18), a display panel (11), a panel driving unit that outputs, to the display panel (11), a signal for controlling a transmittance of each pixel of the display panel (11), and a light source driving unit (16). Light can pass through a back surface of the light guide plate (18), which is a surface opposed to the emission surface of the light guide plate (18). The light source driving unit (16) drives the light source (19) based on the lighting control data. In a case where an image is displayed when the light source (19) is in ON state, the display panel (11) displays a color image, by controlling, pixel by pixel, a transmittance of light that passes from the light source (19) through the emission surface of the light guide plate. In a case where an image is displayed when the light source (19) is in OFF state, the display panel (11) displays a transmitted light image that includes a transmitting region through which the back of the display device (10) can be seen, by controlling, pixel by pixel, a transmittance of light that passes through the back surface of the light guide plate (18) and is incident on the display panel (11).

A liquid crystal display apparatus is provided. The liquid crystal display apparatus includes a graphene LED backlight source, a first polarizing film, a first substrate, a liquid crystal layer, a second substrate and a second polarizing film. The graphene LED backlight source is used for providing light output, the first polarizing film is used for converting the light output from the backlight source into a polarized light. The liquid crystal layer includes liquid crystal molecules used for deflecting the polarized light from the backlight source to form a polarized output light, and the second polarizing film is used for emitting the polarized output light.

Provided is a liquid crystal display element capable of switching between a transparent state and a scattering state and of reducing or preventing a decrease in luminance in the scattering state. The liquid crystal display element includes a liquid crystal panel containing a polymer-dispersed liquid crystal containing a polymer network and a liquid crystal component, and a light source module including a light source adjacent to the liquid crystal panel and a mirror configured to reflect light emitted from the light source toward the liquid crystal panel.

To provide a display device capable of lowering power consumption while reducing a weight by using the organic electroluminescence element for the backlight.

A display device that is provided with a light-transmitting shutter element panel wherein shutter elements that control light transmission are arranged in a matrix and with a backlight panel that has organic electroluminescence elements and that is arranged so as to overlap the shutter element panel. The area in which the shutter elements are arrayed on the shutter element panel is partitioned into partitioned areas, and the organic electroluminescence elements are arranged so as to individually overlap the partitioned area that corresponds thereto.

A field-sequential color image display device is provided which can sufficiently reduce power consumption while suppressing color breakup. In a liquid crystal display device that displays a color image under a field sequential system in which each frame period includes four field periods corresponding to three primary colors, namely red, green, and blue, and a white color, the emission intensity of a light source section (120) during the white field period is determined in advance so that the white color is displayed at a target maximum luminance when the transmittance of a pixel array section (110) is at its maximum during all of the four field periods. A drive control section (200) separates an input image signal into white, blue, green, and red components, expands the white component, and then assigns the components to the four field periods. This causes the pixel array section (110) to, during the respective field periods, display images of the corresponding colors based on the signal components thus assigned, giving a color image by an additive color mixture over time.

A backlight unit that includes a light source driving substrate and first and second light source units connected to the light source driving substrate. The first light source unit includes first and second light sources respectively emitting a first light having a first color and a second light having a second color. The second light source unit may include third and fourth light sources respectively emitting a third light having the first color and a fourth light having the second color. The first light source unit emits a first white color light having a first white color coordinate by mixing the first light and the second light and the second light source unit emits a second white color light having a second white color coordinate by mixing the third light and the fourth light. The first and second white color coordinates belong to different white color coordinate areas.

Subject matter disclosed herein relates to arrangements and techniques that provide for using a wavelength specific illumination for illuminating a display, for example an electrowetting display. The electrowetting display comprises a first substrate and a second substrate. A plurality of pixel regions is provided between the first substrate and the second substrate. The electrowetting display further comprises a first fluid within the pixel regions and on the first substrate. The first fluid comprises one or more dyes and a second fluid is disposed on the first fluid. The second fluid is substantially immiscible with the first fluid. An illumination layer is included between the first substrate and the second substrate. The illumination layer comprises one or more LEDs and at least one of the LEDs produces light at a specific wavelength corresponding to a wavelength of absorption of one of the one or more dyes.

According to one embodiment, a display device includes a first color film of a first color and a second color film of a second color, wherein the irradiator comprises a first light source of a third color and a second light source of a fourth color, the first color and the second color have a complementary color relationship, lightness of the first color is greater than lightness of the second color, a first total displayable area of the first color film is larger than a second total displayable area of the second color film, and the irradiator is configured to radiate light of the first light source and the second light source in a switching manner by time division.

A display device that is provided with a light-transmitting shutter element panel wherein shutter elements that control light transmission are arranged in a matrix and with a backlight panel that has organic electroluminescence elements and that is arranged so as to overlap the shutter element panel. The organic electroluminescence elements used in the display device are layered elements wherein light-emitting units of different colors are sandwiched between a plurality of electrodes and single-layer elements wherein a white light-emitting unit or a light-emitting unit of the complementary color of any of the different colors is sandwiched between a pair of electrodes. The layered elements and the single-layer elements are arranged so as to overlap the shutter elements in stripes that run parallel to the direction in which the shutter elements are arrayed.

Provided is a display device that can reduce electric power consumption. The display device is provided with a backlight (100) and with a field-sequential display panel (200). The backlight has light-emitting units that comprise an organic electroluminescence element in which are layered a plurality of light-emitting units that emit light of different colors. The light-emitting units that can emit white light or yellow light are provided furthest to a light-emission-surface side.