An object of the present invention is to provide a polarizer, a method of producing a polarizer, a laminate, and an image display device which enable achievement of both the degree of alignment and light fastness. The polarizer of the present invention is a polarizer formed of a polarizer-forming composition which contains a liquid crystal compound and a dichroic material, in which the liquid crystal compound is a polymer compound having a smectic liquid crystallinity.

A reflective-type color display according to the present disclosure includes a lower substrate and an upper substrate, a polarization plate positioned on an outer surface of the upper substrate, a plurality of helical photonic crystals arranged between the lower substrate and the upper substrate and having different reflection properties of light in the visible region, and a tunable wave plate positioned on the plurality of helical photonic crystals to control the reflection intensity by continuously changing the phase retardation. According to an embodiment, it is possible to simultaneously achieve the features of three primary colors, analog grey levels, high resolution, and fast response through the separation of the function of color reflection from the intensity tuning capability of the photonic crystal, beyond the limitation of existing reflective-type display technology.

Provided is an optically functional film that can contribute to the widening of the color gamut of an image display apparatus, the optically functional film being suppressed in brightness reduction and being excellent in durability. The optically functional film of the present invention includes: a resin layer; and a pressure-sensitive adhesive layer arranged on at least one side of the resin layer, wherein the resin layer and/or the pressure-sensitive adhesive layer contains, as coloring matters, a compound X represented by the general formula (I) or (II) and a compound Y having an absorption peak in a wavelength band in a range of from 400 nm to 700 nm, which are mixed with each other.

The present application discloses a display panel and a display apparatus. The display panel includes a substrate, and a plurality of first-layer conducting wires, where each of the first-layer conducting wires is disposed on the substrate, a polarizing color filter layer is disposed on the first-layer conducting wire and forms a color filter film with anisotropy, and the first-layer conducting wire is connected to a column data driver and a pixel driver of the display panel.

Described herein are embodiments of squarylium compounds for use as filters in light-emitting and/or display devices. One problem of known quarylium dyes is that strong nucleophiles can attack the electron-deficient cyclobutene ring which can lead to a loss of the dye's colour. Another potential drawback with squaraine dyes can be their tendency to form aggregates, which can lead to a substantial broadening of their absorption bands. Use of the present compounds in filters address these problems. The squarylium compounds of the present invention have the following formulas:

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Provided is a liquid crystal display device having a viewing-side polarizing plate, a liquid crystal panel and a light source-side polarizing plate, which are stacked sequentially, wherein the viewing-side polarizing plate comprises a first polarizer and a first protective film formed on a light output surface of the first polarizer, the light source-side polarizing plate comprises a second polarizer and a fourth protective film formed on a light incident surface of the second polarizer, and the TD shrinkage ratio of the fourth protective film is greater than the TD shrinkage ratio of the first protective film.

Provided is a circularly polarizing plate that is excellent in antireflection characteristic, and that can be produced at low cost. The circularly polarizing plate of the present invention includes in the stated order: a polarizer; a retardation layer (20a) configured to function as a /4 plate; and a colored layer, wherein an angle formed by an absorption axis of the polarizer and a slow axis of the retardation layer (20a) is from 35 to 55, wherein the colored layer has an absorption peak in a wavelength band in a range of from 580 nm to 610 nm, and wherein the colored layer contains a compound X represented by the general formula (I) or the general formula (II).

A display module and a mobile terminal are provided. The display module includes: a screen cover plate, a fingerprint sensitive component, and a display component; the fingerprint sensitive component is arranged between the screen cover plate and the display component; the fingerprint sensitive component includes: an optical fingerprint sensitive layer made of transparent conductive material, a sensitive surface thereof having multiple pixels; the sensitive surface is attached to a surface of the screen cover plate, a attaching surface of the optical fingerprint sensitive layer is attached to a display surface of the display component; when the display component is on, the light emitted passes through the fingerprint sensitive component towards the screen cover plate, and is reflected to the sensitive surface by a finger pressed on the screen cover plate, the fingerprint sensitive component derives a pattern of a fingerprint from the amount of light received by pixels.

A layered structure including a transparent substrate; a photoluminescent layer disposed on the transparent substrate and a pattern of a quantum dot polymer composite; and a capping layer disposed on the photoluminescent layer and including an inorganic material, a method of producing the same, a liquid crystal display including the same. The quantum dot polymer composite includes a polymer matrix; and a plurality of quantum dots in the polymer matrix, the pattern of the quantum dot polymer composite includes at least one repeating section and the repeating section includes a first section configured to emit light of a first peak wavelength, the inorganic material is disposed on at least a portion of a surface of the repeating section, and the inorganic material includes a metal oxide, a metal nitride, a metal oxynitride, a metal sulfide, or a combination thereof.

Provided are a decorative sheet for making the element using external light, for example, a camera or a sensor inconspicuous to an observer and an optical device and an image display device that include the above-described decorative sheet. The decorative sheet including a circularly polarized light reflecting layer, a /4 plate A, a linear polarizer, and a /4 plate B in this order, in which the circularly polarized light reflecting layer includes one or more cholesteric liquid crystal layers having wavelength selective reflecting properties, in a case where an integral reflectivity at a wavelength nm is represented by I-R(), I-R(630), I-R(550), and I-R(450) of the circularly polarized light reflecting layer are 30% or higher, and an angle between a slow axis of the /4 plate A and an absorption axis of the linear polarizer and an angle between a slow axis of the /4 plate B and the absorption axis of the linear polarizer are 4510, respectively.