A wavelength conversion member suppresses peeling at an edge at cutting; and is used with a backlight unit and a liquid crystal display device. The wavelength conversion member includes a first substrate, a wavelength conversion layer, and a second substrate, in which each of the first and second substrates includes a support, a barrier layer, and an organic layer, where each of the barrier layers contains at least aluminum and phosphorus, each of the organic layers is formed of a composition containing a polymer A having a glass transition temperature of 50 C. or lower and a polymer B having an acryloyl or methacryloyl group in a molecule thereof, and the wavelength conversion layer is a layer in which at least one selected from the group consisting of a quantum dot, a phosphor particle, and a phosphor coloring agent is dispersed in a matrix made of an acrylic resin.

A display panel and a display apparatus including the display panel are provided. The display apparatus includes: a display panel; and a backlight unit configured to supply light to the display panel, wherein the display panel includes: a liquid crystal layer; a first polarizing plate disposed between the backlight unit and the liquid crystal layer; and a second polarizing plate facing the first polarizing plate with the liquid crystal layer disposed therebetween, and containing a light absorbing agent for absorbing light of a specific wavelength band, wherein the first polarizing plate includes: a first polarizing layer including a plurality of refracting layers having different refractive indexes; and at least one second polarizing layer disposed on the first polarizing layer.

A backlight structure is provided. The backlight structure includes a substrate, a light emitting diode array layer disposed on the substrate, a planarization layer disposed on the light emitting diode array layer, a composite medium layer disposed on the planarization layer, a metal gate line layer including a plurality of metal lines disposed on the composite medium layer, a fluorescent layer disposed on the metal gate line layer, and a diffusion layer disposed on the fluorescent layer, wherein the composite medium layer includes a first medium, a second medium, and a third medium, the second medium is interposed between the first medium and the third medium, and each of a refractive index of the first medium and a refractive index of the third medium is less than a refractive index of the second medium.

The present application relates to a stacked polarizing plate comprising: a polyvinyl alcohol-based polarizer having one or more of iodine and a dichroic dye; and a film provided on one surface of the polyvinyl alcohol-based polarizing plate and comprising a lyotropic liquid crystal compound which absorbs light having a wavelength of 380 nm to 780 nm, and a liquid crystal display device comprising the same.

Aspects disclosed herein relate to color filters for display devices, and more specifically to color filters for transmitting or reflecting and recycling colors of light in liquid crystal display devices. In one aspect, a metasurface is formed between two polarizers in an LCD device. In another aspect, a metasurface is formed on a white light guide of an LCD device. The metasurface is formed to transmit desired color(s) of light and to reflect undesired color(s) of light back into the light guide to be recycled and passed through the LCD device elsewhere. Using the color filter to recycle reflected colors of light increases the efficiency of the display device, such as the LCD device.

Rolls of film are described. In particular, rolls of film including multilayer birefringent polarizers having low pass axis variation are described. The multilayer birefringent polarizers have low pass axis variation across a full crossweb width of the roll of film.

Provided are a polarizing plate and an optical display device including same, the polarizing plate comprising a polarizing film and a contrast ratio enhancement layer formed on a light-emitting surface of the polarizing film, wherein the contrast ratio enhancement layer comprises: a first resin layer including a pattern unit having one or more engraved patterns and a flat portion formed between the engraved patterns; and a second resin layer directly formed on the pattern unit, wherein the engraved patterns have a base angle of approximately 75 to approximately 90, the pattern unit satisfies formula 1, the first resin layer has a refractive index larger than that of the second resin layer, and the first resin layer includes a dye of which the maximum absorption wavelength is approximately 550 nm to approximately 620 nm.

A hybrid polarizer includes an absorbing element having a first major surface and a second major surface. The hybrid polarizer also includes a first birefringent reflective polarizer disposed on the first major surface of the absorbing element, the first birefringent reflective polarizer having a first pass axis and a first block axis. The hybrid polarizer further includes a second birefringent reflective polarizer disposed on the second major surface of the absorbing element, the second reflective polarizer having a second pass axis and a second block axis.

A display device includes: a display panel; a backlight that emits light toward a rear face of the display panel; a first optical sheet disposed between the display panel and the backlight; a second optical sheet disposed between the first optical sheet and the backlight; and a supporting member that supports an outer peripheral part of the first optical sheet. The first optical sheet includes a first sheet main body portion, and a first supporting piece that protrudes to a side direction from an outer peripheral part of the first sheet main body portion and is supported by the supporting member. The second optical sheet includes a second sheet main body portion, and a flat portion that is formed into a flat shape in an outer peripheral part of the second sheet main body portion and is disposed so as to correspond to the first supporting piece.

The present application provides a color filter substrate, an array substrate and a display panel. A first dielectric grating layer in the color filter substrate is stacked with a first dielectric layer, and ridges and grooves are arranged at intervals periodically on one side of the first dielectric grating layer away from the first dielectric layer; a first polarizing layer in the color filter substrate is located in the grooves of the first dielectric grating layer; a second polarizing layer in the color filter substrate is located on the ridges of the first dielectric grating layer.