A liquid-crystal display device includes: a substrate on which a plurality of pixels is defined, wherein each of the pixels includes an active area where transmittance of light is controlled; an organic layer disposed on the substrate; and a pixel electrode disposed on the organic layer. The active area comprises a first area, a second area and a third area, the second and third areas are connected to the first area on both sides thereof, respectively, when viewed from a top, and the organic layer is disposed only in the first area.

A blue light-blocking structure and manufacturing method thereof, a display device and an operation method thereof are provided. The blue light-blocking structure includes a first transparent dielectric layer, a second transparent dielectric layer and an electro-refractive index adjusting layer. The second transparent dielectric layer is provided on a side of the first transparent dielectric layer. The electro-refractive index adjusting layer is provided between the first transparent dielectric layer and the second transparent dielectric layer. The electro-refractive index adjusting layer is configured to change the refractive index to the blue light transmitted through the electro-refractive index adjusting layer under the action of an electrical field applied between a first side of the electro-refractive index adjusting layer near the first transparent dielectric layer and a second side near the second transparent dielectric layer.

A light unit according to an exemplary embodiment includes a light source and an optical member transmitting and converting light emitted from the light source, where the optical member includes a light guide, a low refractive index layer disposed on the light guide and having a smaller refractive index than that of the light guide, and a wavelength conversion layer disposed on the low refractive index layer and including quantum dots, and the low refractive index layer includes a metal.

The present invention provides a COA substrate and a fabricating method thereof as well as a display device, and relates to the field of display technology, which solves the problem of a relatively large parasitic capacitance to be generated between the data line and the common electrode layer because the common electrode layer is formed on the black matrix directly in the existing technical solution, avoids signal delay, and improves the image display quality of the display. The COA substrate comprises: a black matrix, a color filter, a common electrode layer and an organic insulating film layer formed on the black matrix, the common electrode layer is formed on the organic insulating film layer, the organic insulating film layer is arranged on the color filter and covers the position of the color filter; the material of the organic insulating film layer is an organic insulating material having a relative dielectric constant less than 10. The present invention is applied in the fabricating technology of a display device.

An acousto-optic device capable of increasing a range of a diffraction angle of output light by using a nanostructured acousto-optic medium, and an optical scanner, an optical modulator, a two-dimensional/three-dimensional (2D/3D) conversion stereoscopic image display apparatus, and a holographic display apparatus using the acousto-optic device. The acousto-optic device may include a nanostructured acousto-optic medium formed by at least two different mediums repeatedly alternating with each other, wherein at least one of the at least two different mediums includes an acousto-optic medium. The acousto-optic device having the aforementioned structure may increase the range of a diffraction angle of output light. Thus, various systems such as the optical scanner, the optical modulator, the 2D/3D conversion stereoscopic image display apparatus, and the holographic display apparatus may not require a separate optical system to increase an operational angle range, thereby decreasing a size of the system and/or improving a resolution of the system.

An image display device element, a filter element, and a reflective element allow a brightened display screen displaying red, green, blue, and composite colors through use of a single light-emitting portion. The image display device has a first element where a boundary wavelength between light absorption and light transmission or between reflection in an oblique direction and light transmission is variable or fixed and a second element where a wavelength region to be reflected is variable or fixed. The boundary wavelength of the first element and/or the wavelength region of the second element is variable. A positional relationship exists where light transmitted by the first element is incident on the second element. Controlling overlap between light transmission bands of the elements through varying the boundary wavelength of the first element and/or the wavelength region of the second element varies a band and amount of light reflected by the second element.

A photoresist resin composition including: a plurality of quantum dots; a photopolymerizable monomer; a photopolymerization initiator; a scatterer; a binder resin; and a solvent, wherein an amount of the scatterer is in a range of about 2 parts to about 20 parts by weight based on 100 parts by weight of a total amount of the photoresist resin composition.

A blue light-blocking structure and manufacturing method thereof, a display device and an operation method thereof are provided. The blue light-blocking structure includes a first transparent dielectric layer, a second transparent dielectric layer and an electro-refractive index adjusting layer. The second transparent dielectric layer is provided on a side of the first transparent dielectric layer. The electro-refractive index adjusting layer is provided between the first transparent dielectric layer and the second transparent dielectric layer. The electro-refractive index adjusting layer is configured to change the refractive index to the blue light transmitted through the electro-refractive index adjusting layer under the action of an electrical field applied between a first side of the electro-refractive index adjusting layer near the first transparent dielectric layer and a second side near the second transparent dielectric layer.

An optical device includes a nanostructured transparent dielectric film, which is a Huygens metasurface. The Huygens metasurface imparts a phase change to light propagating through or reflecting from the surface. The phase change can be achieved by means of a resonant interaction between light and the Huygens resonators, resulting in a controllable phase change of 0 to 2 with approximately 100% light transmission characterized by a below 0.1 dielectric loss tangent of delta and with the height of the resonators less than the wavelength of light. In one embodiment, the metasurface includes titanium dioxide, but many materials or stacks of different materials may be used. The optical device is functional throughout the visible spectrum between 380 and 700 nm. The nanostructured transparent dielectric film includes a plurality of Huygens resonators. The phase and the amplitude of the nanostructured transparent dielectric film are modulated by arranging the plurality of Huygens resonators such that certain properties, including the radius and height of each Huygens resonator, as well as the gap between two adjacent Huygens resonators, are controlled to optimize the performance of the optical device within the visible spectrum.

A liquid crystal display device includes a light source member and a display panel disposed on the light source member. The display panel includes a first substrate and a second substrate facing each other, a liquid crystal layer, and a color conversion layer that is disposed between the liquid crystal layer and the first substrate. The color conversion layer includes a light emitter and a low refractive body having a refractive index of about 1.0 to about 1.3. The liquid crystal display device exhibits high color reproducibility and improves external light extraction efficiency.