A display system and method are disclosed that includes an electronic display device and a backlight comprising a light-emitting array, a reflector adjacent to the light-emitting array, a diffuser opposite the reflector, a first brightness enhancing layer adjacent the diffuser, and an optical film in the backlight unit that includes at least one light conversion material or at least one light conversion material. The light conversion material is structured and configured to reduce hazardous blue light emissions between about 400 nm to about 500 nm. The disclosed display device can include a liquid crystal panel configured to control transmission of light from the backlight to a viewer. The display device also includes one or more optical films that incorporate one or more light conversion or light absorbing materials. The optical films can be positioned between the layers of the disclosed display device and give enhanced blue-light absorption to the display device.

A light-emitting diode (LED) and a backlight-type display device are provided. The light-emitting diode includes: a multi-color light emitting chip, an emission spectrum thereof including a first peak in a wavelength range of a first primary-color light and a second peak in a wavelength range of a second primary-color light, and an absolute value of a wavelength difference between the first and second peaks being greater than 50 nm; and a phosphor-containing layer, disposed over the multi-color light emitting chip and used to be excited to emit a third primary-color light. Owing to the LED adopts the multi-color light emitting chip which has the first and second peaks in different wavelength ranges and the absolute valve of the wavelength difference is greater than 50 nm, RGB three-primary-color lights can be outputted by adopting a single-color light phosphor powder with relatively high reliability. The backlight-type display device can obtain a high NTSC level.

Provided is a display panel, including an array substrate, a color filter substrate, and a back light module. The back light module includes a light source, and the light emission spectrum of the light source has a first blue peak and a second blue peak. The color filter substrate is provided with multiple pixel units which are periodically and repeatedly disposed, and at least one pixel unit includes a red sub-pixel, a green sub-pixel, a first blue sub-pixel and a second blue sub-pixel. The first blue sub-pixel and the second blue sub-pixel have different transmittance spectrums; a peak wavelength of a transmittance spectrum of the first blue sub-pixel matches a peak wavelength of the first blue peak of the light source, and a peak wavelength of a transmittance spectrum of the second blue sub-pixel matches a peak wavelength of the second blue peak of the light source.

This polarized light-emitting film contains a water-soluble coumarin compound represented by formula (1) (in formula (1), A represents an optionally substituted coumarin skeleton, X represents a sulfo group or a carboxyl group, and n represents an integer of 1 to 3.) or a salt thereof.

##STR00001##

A display including a red subpixel, a green subpixel, a blue subpixel and a fourth subpixel including a teal subpixel or a saturated green pixel and an LED light source. Liquid crystal display devices including U.sup.6+-containing phosphors are also provided. Applications for the display include televisions, mobile phones and computer monitors.

Disclosed is a display device. The display device includes a display panel, an optical assembly configured to provide blue-based light to the display panel, and a light-absorbing layer located in the path of light provided from the optical assembly to the display panel, the light-absorbing layer being configured to absorb light in a predetermined wavelength range. The light provided to the display panel through the light-absorbing layer has optical characteristics such that the intensity of green-based light is 20 to 70% of the intensity (100%) of the blue-based light and the intensity of red-based light is 20 to 70% of the intensity of the blue-based light.

A backlit display for emitting a display light, said display comprising a backlight configured to emit a high circadian stimulation backlight spectrum having a spectral power distribution (SPD) with an overall power, and a blue range from 440-490 nm with a blue SPD power of at least 25% of said overall power, a pixel array comprising at least three filters, said at least three filter comprising at least a first filter, a second filter, and third filter, forming at least three sub-pixels, wherein said backlight is configured to backlight said pixel array, and wherein said display light has a gamut having an sRGB coverage of at least 85%.

Provided is a liquid crystal display device that can achieve prevention of a decrease in the VHR and can achieve an increase in the response speed. A liquid crystal display device includes a liquid crystal panel that includes a liquid crystal layer containing a liquid crystal composition; and a light source that emits light on the liquid crystal panel, the liquid crystal composition containing at least one of a first liquid crystal compound containing a phenyl group and a conjugated bond group that forms a conjugated system continuous with the phenyl group and a second liquid crystal compound containing an alkenyl group not forming a conjugated system, the light source emitting green light having a half width of less than 50 nm.

A dual-die device, a display device and a driving method thereof are provided. The dual-die device includes: a first light emitting die for emitting light containing short-wave blue light; a second light emitting die for emitting light from which short-wave blue light is filtered out; and a control circuit. The control circuit is connected to the first light emitting die and the second light emitting die, and configured to control the first light emitting die or the second light emitting die to be turned on.

Backlighting panels for LCD displays are described herein which, in some embodiments, enhance contrast ratio, spatial resolution and/or chromaticity differentiation in images output by the LCD displays. In one aspect, an electronic display device comprises a LCD panel comprising pixels, and a backlighting panel comprising an array of solid state lighting devices of differing color. A color management unit is configured to generate color management signals for controlling chromaticity and/or luminance output of the solid state lighting devices, wherein a ratio of the solid state lighting devices to the pixels of the LCD panel is greater than 1.