Samsung Electronics Co., Ltd.

Daesik Kim

Yasuhiro Nishida

Farid Mukhtarov

Jongil Kim

Kyonghyong Kim

Byunghun Woo

Doyoung Kwak

Jeongtaek Kim

Inyoul Seo

A display apparatus includes: a liquid crystal panel; and a backlight unit configured to provide light to the liquid crystal panel, wherein the backlight unit includes: a substrate; a light emitting diode provided on the substrate; a quantum dot cover covering the light emitting diode and configured to convert a wavelength of light emitted from the light emitting diode; a refractive cover covering the quantum dot cover, wherein a surface of the refractive cover has a recessed portion that is recessed toward the quantum dot cover and a reflector provided in the recessed portion to be positioned above the quantum dot cover, and wherein a diameter of a lower surface of the reflector is smaller than a diameter of an upper surface of the reflector.

Display apparatus

A display device includes a backlight unit including: a substrate; a Light Emitting Diode (LED) disposed on a surface of the substrate; and a refractive cover configured to surround the LED. The refractive cover includes: a first refractive surface to: be spaced apart from the LED by a preset distance, be positioned on the upper surface of the substrate, be parallel to an axis of the LED or be inclined within one angle from the axis of the LED; a second refractive surface to be a curved surface in which an angle between a tangent line and the axis of the LED increases from a region connected to another upper portion of the first refractive surface toward a direction of the axis of the LED; and a third refractive surface to be connected to an portion of the second refractive surface and be perpendicular to the axis of the LED.

Display device and method for manufacturing same

A backlight unit comprising a printed circuit board; a plurality of light sources at a surface of the printed circuit board, the plurality of light sources to emit light; and a reflective sheet, arranged above the plurality of light sources, having differing transmittance on the basis of incident angle of the light from the plurality of light sources, respectively, wherein the reflective sheet is provided with at least one gap between two adjacent light sources from among the plurality of light sources.

Backlight unit and display apparatus comprising same

Provided is a backlight unit, a display apparatus, and a method of manufacturing the display apparatus capable of securing a uniform and wide illumination area with a small number of light sources through reflection of a reflective layer. The backlight unit includes a plurality of light sources configured to emit light; a first reflective layer configured to reflect the light emitted from the plurality of light sources; and a second reflective layer configured to reflect the light reflected from the first reflective layer, wherein an amount of reflection from the first reflective layer and an amount of transmission through the first reflective layer are different from each other according to an angle of incidence of light incident on the first reflective layer.

Display apparatus including reflective layer, method of manufacturing display apparatus and backlight unit

A display apparatus includes a liquid crystal panel, and a backlight unit configured to emit light to the liquid crystal panel. The backlight unit includes a substrate, a light emitting diode (LED) provided on the substrate and configured to emit light, and a refractive cover formed by being provided at a plurality of points separated from each other, and configured to enclose the LED.

Display apparatus and method for manufacturing the same

A display apparatus includes a liquid crystal panel; a light source module configured to provide light to the liquid crystal panel; a printed circuit board (PCB) on which the light source module is mounted; and at least one chassis accommodating the liquid crystal panel and the PCB. The light source module includes: a substrate; a reflector positioned on the substrate, and including a curved surface having a shape resulting from rotating a portion of a parabola around a directrix of the parabola, the directrix perpendicular to the substrate; and a plurality of light sources mounted on the substrate along focal points of the parabola of the reflector.

Growing community of inventors

Suwon-si, South Korea

Daesik Kim