Abstract:
An optical film includes a first pattern layer including a base part and a plurality of protruding parts disposed on the base part, and having a first refractive index, and a second pattern layer disposed on the first pattern layer and having a second refractive index greater than the first refractive index. Each of the protruding parts includes a bottom surface adjacent to the base part, an upper surface opposite to the bottom surface and parallel to the bottom surface, and a side surface disposed between the bottom surface and the upper surface. The side surface includes three or more sub-inclined surfaces, inclination angles of which are different from each other, or includes a curved surface which is convex in a direction of the second pattern layer.
Abstract:
An optical film includes a first pattern layer including a base part and protrusion part groups on the base part and having a first refractive index, and a second pattern layer on the first pattern layer and having a second refractive index greater than the first refractive index. Each of the protrusion part groups includes first and second protrusion parts adjacent to each other. Each of the first and second protrusion parts includes a bottom surface, an upper surface, a first side surface and a second side surface. The first and second protrusion parts are symmetrical with respect to a reference line passing through a center of each of the protrusion part groups and perpendicular to the base part. The first and second protrusion parts are asymmetrical with respect to a center line passing through a center of the upper surface and perpendicular to the bottom surface.
Abstract:
A light emitting display device includes a substrate, a plurality of anodes on the substrate, a pixel defining layer having a plurality of first openings overlapping the anodes, a plurality of emission layers in the first openings of the pixel defining layer, a cathode formed on the emission layers and the pixel defining layer, an encapsulation layer on the cathode, and a light blocking layer on the encapsulation layer and having a plurality of second openings corresponding to the first openings, wherein the first openings and the second openings respectively have an oval shape in a plan view, and wherein long-axis angles of the second openings include at least five different angles.
Abstract:
A backlight unit includes a display panel, a light guide plate beneath the display panel, a light source spaced apart from the light guide plate in a first direction, a plurality of first optical patterns beneath the light guide plate while extending in the first direction and being arranged in a second direction intersecting the first direction, and a plurality of second optical patterns beneath the plurality of first optical patterns. Each of the plurality of first optical patterns has a quadrangle shape when viewed in the first direction.
Abstract:
A lens assembly for a backlight light source includes: a plurality of light emitters, where each of the light emitters includes a first light-emitting device and a second light-emitting device, and the first and second light-emitting devices emit light having different colors from each other; and a lens disposed on the light emitter to cover the light emitter, where the lens is substantially symmetric with respect to a center axis thereof and has a bar shape extending in a direction parallel to the center axis, the light emitters are spaced apart from each other in the direction parallel to the center axis, and the first light-emitting device and the second light-emitting device of each of the light emitters are spaced apart from each other in the direction parallel to the center axis.
Abstract:
Disclosed is a display device that can uniformly transmit light emitted from a light source to the entire display panel without using a light guide plate. The display device includes a display panel, a backlight assembly supplying light to the display panel, and a lower cover receiving the backlight assembly. The backlight assembly includes a light source, a circuit board mounted with the light source, and a reflection cover coupled to the circuit board to reflect light emitted from the light source and formed of a bendable plate type member.
Abstract:
A display device includes an optical member, a display panel disposed on the optical member, and a plurality of light emitting units disposed under the optical member, the optical member comprising, a diffusion layer, and a reflectivity control layer which is disposed under the diffusion layer and reflects a light provided from the light emitting units, including a first base material, reflective materials dispersed in the first base material, a plurality of first portions corresponding to the plurality of light emitting units, and a second portion disposed adjacent to the first portions, where each of the plurality of first portions comprises a greater amount of the reflective materials than the second portion, when a first portion and a second portion represent a unit area having a predetermined size.
Abstract:
A light emitting display device includes: a substrate; anodes on the substrate; a pixel definition layer having first openings overlapping with the anodes, respectively; emission layers located within the first openings, respectively; a cathode on the emission layers and the pixel definition layer; an encapsulation layer on the cathode; and a light blocking layer on the encapsulation layer, and having second openings corresponding to the first openings, respectively. Each of the first openings has a circular shape in a plan view, and each of the second openings has an elliptical shape in a plan view. In a plan view, a first opening from among the first openings is in contact with a second opening corresponding to the first opening from among the second openings, or positioned within the second opening.
Abstract:
Provided is a backlight unit including a printed circuit board, a light-emitting diode package, a diffusion plate, and a reflection sheet. The light-emitting diode package including a light-emitting part configured to generate a first light. The diffusion plate includes a first diffusion pattern provided on a first region corresponding to the light-emitting diode package and a second diffusion pattern provided on a second region to have a transmittance higher than that of the first diffusion pattern. The reflection sheet includes an absorption pigment configured to absorb a fraction of the first light with a specific wavelength and converting the first light to a second light, and the reflection sheet is configured to reflect the second light toward the first diffusion pattern. The backlight unit can have improved color coordinate uniformity.
Abstract:
A backlight unit includes a light source which generates light, a light guide plate which guides the light substantially in an upward direction, a first frame member which holds the light source and diffuses the light traveling substantially in the upward direction between the light source and the light guide plate, a second frame member which holds the light guide plate, a third frame member which holds the light guide plate, a reflective plate disposed under the light guide plate and which reflect the light leaked downwardly from the light guide plate substantially to the upward direction, and an optical sheet disposed on the light guide plate and the first to third frame members and which diffuses the light provided from the first frame member and the light guide plate and condenses the light substantially in the upward direction.