The present specification relates to a display device including: a liquid crystal panel; and a backlight unit, in which the backlight unit includes one or more color conversion films, the liquid crystal panel or backlight unit includes a light absorption layer, and the color conversion film includes, during light irradiation, a first light emission peak in which a light emission peak having the largest height within a wavelength range of 500 nm to 560 nm is present within 520 nm to 535 nm and a full width at half maximum of the light emission peak is 50 nm or less and a second light emission peak in which a light emission peak having the largest height within a wavelength range of 600 nm to 780 nm is present within 625 nm to 640 nm and a full width at half maximum of the light emission peak is 60 nm or less.

The present disclosure discloses a liquid crystal display panel, its method of manufacture and a liquid crystal display device. The panel includes an array substrate, a color filter substrate, a sealant connecting the two substrates, and a liquid crystal between the two substrates; a photoluminescent material is disposed on at least one of the array substrate and the color film substrate corresponding to the sealant, the photoluminescent material is used to emit a second light under the excitation of a first light, the second light is used to solidify the sealant, the photoluminescent material is at least partially disposed on a light passage of the first light. By the above methods, the present disclosure can solve the incomplete solidified problem of the sealant causing by the light is blocked and the sealant cannot be completely irradiated when the sealant of the existing display panel is solidified.

A color filter substrate includes a base substrate and a color filter formed on the base substrate, wherein the color filter includes at least one color area; the color filter substrate further includes at least one of at least one kind of fluorescent powder or at least one antireflective film, wherein each kind of fluorescent powder in the at least one kind of fluorescent powder corresponds to one color area in the color filter; each antireflective film in the at least one antireflective film corresponds to one color area in the color filter, the fluorescent powder is configured to convert light, of which a color is different from a color of a corresponding color area, in incident light into light of which a color is the same with the color of the corresponding color area.

An optical switching device comprising a polarisation layer and a switching layer which comprises a liquid-crystalline material and a dye compound. Use of the optical switching device for the regulation of the passage of light through an area element. A window element which has the optical switching device therein.

A color conversion panel includes a substrate, a first color conversion layer and a second color conversion layer disposed on the substrate, a planarization layer covering the first color conversion layer and the second color conversion layer, and a polarization layer disposed on the planarization layer. An outlet from the planarization layer penetrates the polarization layer.

A display system comprises light sources configured to emit first light with a first spectral power distribution; light regeneration layers configured to be stimulated by the first light and to convert at least a portion of the first light and recycled light into second light, the second light comprising (a) primary spectral components that correspond to primary colors and (b) secondary spectral components that do not correspond to the primary colors; and notch filter layers configured to receive a portion of the second light and to filter out the secondary spectral components from the portion of the second light. The portion of the second light can be directed to a viewer of the display system and configured to render images viewable to the viewer.

A display system comprises light sources configured to emit first light with a first spectral power distribution; light regeneration layers configured to be stimulated by the first light and to convert at least a portion of the first light and recycled light into second light, the second light comprising (a) primary spectral components that correspond to primary colors and (b) secondary spectral components that do not correspond to the primary colors; and notch filter layers configured to receive a portion of the second light and to filter out the secondary spectral components from the portion of the second light. The portion of the second light can be directed to a viewer of the display system and configured to render images viewable to the viewer.

An electro-optic display is provided that may include a layer of light-transmissive conductive material, a substrate, a layer of an electro-optic medium disposed between the layer of conductive material and the substrate, a color filter array, and a light emitting layer. The electro-optic medium may include a photo-luminescent material that functions as either a down-converter or an up-converter that may be excited by the light received from the light emitting layer. The photo-luminescent material may be excited by radiation having a first wavelength transmitted by a filter within the color filter array and emit radiation having a second wavelength transmitted by the filter. The photo-luminescent material may also be excited by radiation at a wavelength within a first and second range of wavelengths transmitted by two filters within the color filter array and emit radiation at a wavelength within one of the first and second ranges.

The present disclosure relates to a display device including a display panel on which an image is displayed, a polarizer disposed on the display panel, a lower fluorescent filter disposed on the polarizer, and an upper fluorescent filter disposed on the lower fluorescent filter. The present disclosure may improve visibility when an image is displayed on the display device and light of a laser pointer in a visible light region is emitted thereto by absorbing the light using the upper and lower fluorescent filters, converting the light into light in a long wavelength band, which is a higher wavelength band than that of the absorbed light, and emitting the light in the long wavelength band.

A wavelength conversion member includes: a first wavelength converter containing a first wavelength converting material; a second wavelength converter containing a second wavelength converting material different from the first wavelength converting material; a first container member providing a space for accommodating the first wavelength converter; and a second container member facing the first container member and providing a space for accommodating the second wavelength converter. The first container member and the second container member may be at least partially fusion-bonded with each other.