A quantum dot including a core and a shell disposed on an outer surface of the core. The core includes a first semiconductor nanocrystal including a Group II-VI compound. The shell includes a second semiconductor nanocrystal. An effective mass of the second semiconductor nanocrystal is about 0.5 times to about 2.0 times an effective mass of the first semiconductor nanocrystal and the quantum dot does not include cadmium, lead, mercury, or a combination thereof.

The present application provides a display panel and a manufacturing method of the display panel. When an electrochromic layer is completely closed, a metasurface structure and an electrowetting structure reflect a light with corresponding wavelength to form a reflection state. When the electrochromic layer is partially closed, the metasurface structure and the electrowetting structure corresponding to a part of the closed electrochromic layer reflect the light with corresponding wavelength to form the reflection state, and the light penetrates through the wetted metasurface structure and a part of the unclosed electrochromic layer to form a transparent state.

The present invention relates to a color filter having a quantum dot color conversion structure and a manufacturing method therefor. The present invention relates to a color filter having a plurality of quantum dot color conversion layers spaced apart from each other, wherein each of the quantum dot color conversion layers is a free-standing wire structure extending in a vertical direction from a substrate, and the ratio of the length to the width of the free-standing wire structure is 1 or more.

An electronic device includes a display panel having a display surface that includes a first region and a second region. The display panel outputs a first light in the first region and a second light in the second region. The first light has a first normal brightness in a first orthogonal direction and a first oblique brightness in a first inclined direction. The second light has a second normal brightness in a second orthogonal direction and a second oblique brightness in a second inclined direction. The included angles between the orthogonal directions and the corresponding inclined directions are acute angles. A ratio of a difference between the first normal brightness and the second normal brightness to the first normal brightness is less than a ratio of a difference between the first oblique brightness and the second oblique brightness to the first oblique brightness is defined as a second ratio.

A display device may have a reduced thickness while having enhanced color reproducibility by having an improved structure. The display device may include: a liquid crystal panel; a light source plate which is arranged at the rear of the liquid crystal panel to provide light to the liquid crystal panel, and which includes a printed circuit board and an LED chip mounted on the printed circuit board; and a chip cover which is provided to cover a light-emitting surface of the LED chip, and which changes the wavelength of the light emitted from the LED chip, wherein the chip cover includes: a cover layer having a first surface arranged to face the light-emitting surface of the LED chip, a second surface opposite to the first surface, and an accommodating groove provided on the second surface; a light conversion member which changes the wavelength of the light emitted from the LED chip, and which is accommodated in the accommodating groove; and a barrier layer for covering the second surface to cover the light conversion member from the outside.

A method of manufacturing a thin film is provided. The method includes providing a plurality of crystalline hexagonal tungsten trioxide particles, size-reducing the crystalline hexagonal tungsten trioxide particles by grinding to produce crystalline hexagonal tungsten trioxide nanostructures, and coating the crystalline hexagonal tungsten trioxide nanostructures onto a substrate to produce a thin film. An electrochromic multi-layer stack is also provided.

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.

According to one embodiment, an illumination device comprises a plurality of light emitting elements that are disposed on a main surface of a wiring board, a light diffusion distance maintaining layer, a wavelength conversion layer, and a prism sheet, wherein the main surface of the wiring board is divided into a plurality of segment regions, n (n>1) light emitting elements are provided in each of the segment regions, the light emitting elements are independently driven in units of the segment regions, and a thickness of the light diffusion distance maintaining layer is ½ times or more a pitch of the segment regions adjacent to each other.

A touch display device includes a substrate, a display layer disposed on the substrate, an insulating layer disposed on the display layer, and a touch electrode layer directly contacting the insulating layer. The display layer includes a first region, a second region, and a third region. The second region is located between the first region and the third region. The second region is foldable. The touch electrode layer includes a mesh structure, wherein the insulating layer is disposed between the display layer and the mesh structure. The insulating layer includes a first layer, a second layer, and a third layer. The second layer is disposed between the first layer and the third layer. The first layer and the third layer are formed of inorganic insulating materials. The second layer is formed of organic insulating material. The thickness of the first layer is greater than the thickness of the third layer.

A display device is provided. The display device includes a substrate and a plurality of pixels disposed on the substrate. One of the pixels includes a first light filter layer. The display device also includes a first light shielding layer, a second light shielding layer, and a plurality of light emitting diodes. The first light shielding layer defines a plurality of openings, wherein the first light filter layer is disposed in one of the openings. The second light shielding layer is disposed on the substrate and at least partially overlapped with the first light shielding layer. The second light shielding layer defines another plurality of openings, and the light emitting diodes are disposed in the another plurality of openings. In a direction parallel to an upper surface of the substrate, the second light shielding layer overlaps the plurality of light emitting diodes.