A display panel includes a display device, a light-guiding structure and an anti-reflection structure. The light-guiding structure is disposed between the pixels to guide light beams emitted from the pixels toward a display surface. The anti-reflection structure is over the pixels of the display device, wherein the anti-reflection structure includes a photo-sensitive alignment layer, a liquid crystal circular polarizer and a linear polarizer. The photo-sensitive alignment layer is over the optical absorbing layer, wherein the photo-sensitive alignment layer is sensitive to and curable by the light within the wavelength range. The liquid crystal circular polarizer is over the photo-sensitive alignment layer, wherein the liquid crystal circular polarizer includes a plurality of liquid crystal molecules aligned by the photo-sensitive alignment layer. The linear polarizer is over the liquid crystal circular polarizer.

A display device includes: a first substrate; a second substrate facing the first substrate; a light-amount adjusting layer interposed between the first substrate and the second substrate; and a backlight unit disposed under the first substrate, wherein the second substrate includes a plurality of color conversion layers respectively disposed on a plurality of pixel regions, the color conversion layer includes a partition wall; and a phosphor disposed on areas defined by the partition wall, and the color conversion layer includes an air layer between the second substrate and the phosphor.

An optical device includes a waveguide device, a reflective-type light valve and a projection lens. The waveguide device receives a first polarized beam and includes a first surface, a second surface and the first grating. The first grating is disposed in a path of the first polarized beam to change a propagation direction of the first polarized beam, and the first polarized beam passes through the first surface, the first grating and the second surface in succession. The reflective-type light valve is disposed downstream from the second surface of the waveguide device to convert the first polarized beam into an image beam. The projection lens is disposed downstream from the reflective-type light valve, and the image beam passing through the second surface of the waveguide device, the first grating and the projection lens in succession.

A display panel and a driving method and manufacturing method thereof, and a display device. The display panel includes a base substrate, a dielectric layer provided on the base substrate, and a refractive index variable layer provided on a side of the dielectric layer away from the base substrate; the refractive index variable layer is in contact with the dielectric layer and has a contact surface with the dielectric layer, and the refractive index variable layer can change the refractive index so that the light entering from the light incident side is totally reflected or transmitted at the contact surface.

A tunable optical filter, includes a light source configured to emit optical radiation to a sample; an input optical element configured to receive optical radiation reflected from the sample; a liquid crystal cell comprising electrodes, the liquid crystal cell contacting the input optical element; an output optical element, contacting the liquid crystal cell; and a control unit adapted to apply a preset voltage to the liquid crystal cell via the electrodes; wherein the input optical element and the output optical element have a same first refractive index, wherein, when voltage is not applied to the liquid crystal cell, the first refractive index is greater than a second refractive index of the liquid crystal cell for a wavelength range of incident optical radiation, and wherein the input optical element, the liquid crystal cell and the output optical element are tilted at an angle to the incident optical radiation.

A display device according to an exemplary embodiment includes: a thin film transistor array panel; and a color conversion display panel overlapping the thin film transistor array panel, the color conversion display panel including: a substrate; a color conversion layer positioned between the substrate and the thin film transistor array panel and including a semiconductor nanocrystal; a transparent layer positioned between the substrate and the thin film transistor array panel; and at least one of a first buffer layer positioned between the color conversion layer and the substrate and between the transparent layer and the substrate, and a second buffer layer positioned between the color conversion layer and the thin film transistor array panel and between the transparent layer and the thin film transistor array panel, and at least one of the first buffer layer and the second buffer layer includes a porous layer.

An electronic paper and a manufacturing method thereof are provided. The electronic paper includes a first substrate provided with a microstructure and multiple first electrodes thereon; a second substrate arranged opposite to the first substrate and provided with multiple second electrodes thereon, the microstructure is arranged on a side of the first substrate facing the second substrate; and pixel isolation walls arranged between the first and second substrates, for dividing the electronic paper into pixel units; each pixel unit includes: one first substrate; one second substrate; charged particles arranged between the first and second electrodes, the first and second electrodes control, depending on a voltage applied thereto, contact between the charged particles and the microstructure; when the charged particles are not in contact with the microstructure, light from outside is subject to total internal reflection after being radiated to the microstructure through the first substrate.

Embodiments of the present disclosure provide a display panel and a driving method thereof. The display panel includes a first substrate and a second substrate which are aligned and assembled into a cell, wherein the first substrate includes a first base body, a total internal reflection structure and a first electrode are provided at a side of the first base body facing to the second substrate, and the second substrate includes a second base body and a second electrode which is provided at a side of the second base body facing to the first substrate. The display panel further includes cholesteric liquid crystal provided between the first and second substrates, charged light-absorbing particles are mixed in the cholesteric liquid crystal, and a refractive index of the cholesteric liquid crystal is smaller than each of refractive indexes of the total internal reflection structure and the light-absorbing particles.

A total internal reflection image display comprised of dry electrostatically mobile particles composed of a solid material stably floating as a dispersant in a gas and exhibiting a high fluidity in an aerosol state may be sealed between the transparent sheet capable of total internal reflection such as comprising a plurality of transparent convex or hemi-spherical protrusions and the rear support, partition walls and the dry particles may be moved by application of a voltage bias. A method of manufacture is described comprising of the steps of forming partition walls, filling with dry particles, sealing the particles into cells or compartments.

The present invention provides polymeric materials arranged as photonic crystals, or portions of photonic crystals, having properties which can be easily tuned over a large range of wavelengths upon exposure to an external stimulus. In some embodiments, the photonic crystals comprise at least one portion which can undergo a change in a physical, chemical, dielectric, or other property upon exposure to an altering stimulus, resulting in a change in a diffracted wavelength of electromagnetic radiation (e.g, light) by the photonic crystal. Embodiments of the invention may advantageously exhibit large stop band tunability and rapid response times. Photonic crystals of the invention may be useful in a wide variety of applications, such as colorimetric sensors, active components of simple display devices, electrically controlled tunable optically pumped laser, photonic switches, multiband filters, and the like.