Lg Electronics Inc.

Eunseok Kim

Sewon Oh

Juyoung Joung

Uihyung Lee

Jaehyeok Kim

Dawoon Jung

Jeonggyu Kim

Dohan Park

Minho Kim

Wondo Kee

Jongho Han

Jaehyung Jeon

Jinsin Park

Sojung Kim

Jongyoung Shin

A display device including a display panel; a frame at a rear of the display panel; a plurality of light sources between the display panel and the frame, the light sources providing light for the display panel; a plurality of lenses respectively mounted on the plurality of light sources; and a reflecting sheet between the display panel and the frame. In addition, the reflecting sheet includes a first sheet part forming a central area of the reflecting sheet; a second sheet part forming a side area of the reflecting sheet around the first sheet part; and first and second strips of light controlling material respectively disposed on the reflecting sheet at first and second outside edges of a corresponding lens, and the corresponding lens overlaps at least a portion of the first and second strips of light controlling material.

Backlight unit and display device including backlight unit

A display device including a display panel, a frame at a rear of the display panel, a light source on a substrate between the display panel and the frame, the light source providing light for the display panel, and a reflecting sheet between the display panel and the frame, the reflecting sheet having a rectangular shape with a first long side, a second long side opposite the first long side, a first short side adjacent to the first long side and the second long side, and a second short side opposite the first short side, wherein the reflecting sheet includes a first sheet part forming a central area of the reflecting sheet, a second sheet part forming a side area of the reflecting sheet around the first sheet part, the second sheet part including dot areas, and a hole next to a border line between the first sheet part and the second sheet part, wherein at least one of the dot areas in the second sheet part is formed along the first short side or the second short side, wherein the at least one of the dot areas including a first dot area next to the hole in a parallel direction of the first long side or the second long side and a second dot area next to the first dot area in a parallel direction of the first short side or the second short side, and wherein a density of dots in the first dot area is different from a density of dots in the second dot area.

Display device having reflecting sheet with plurality of dot areas reducing reflectivity of the reflecting sheet

A display device is provided. The display device includes: a substrate; and at least one light assembly separately located on the substrate, wherein the light assembly includes: a light source; and a lens configured to shield an upper surface and a side surface of the light source, wherein the lens includes: a refraction portion separately located on the upper surface of the light source; and a reflection portion separately located at the side surface of the light source. Thereby, the lens includes a reflection portion located at a side surface of the light source, thereby improving light efficiency of a backlight unit.

Backlight unit having a lens with refraction and reflection portions

A display device including a display panel; a frame at a rear of the display panel; a substrate disposed on the frame between the display panel and the frame; a plurality of light sources mounted on the substrate, the light sources providing light for the display panel; a plurality of lenses respectively mounted on the plurality of light sources; a connector mounted on the substrate; and a reflecting sheet disposed on the substrate and the frame and including a plurality of holes into which the plurality of lenses is respectively inserted, wherein the reflecting sheet includes a cutting portion aligned with the connector such that the connector is disposed under the cutting portion of the reflecting sheet.

A display device including a display panel; a frame at a rear of the display panel; a light source on a substrate between the display panel and the frame, the light source providing light for the display panel; and a reflecting sheet between the display panel and the frame, the reflecting sheet having a rectangular shape with a first long side, a second long side opposite the first long side, a first short side adjacent to the first long side and the second long side, and a second short side opposite the first short side, wherein the reflecting sheet includes a first sheet part forming a central area of the reflecting sheet; a second sheet part forming a side area of the reflecting sheet around the first sheet part, the second sheet part including dot areas; and a hole next to a border line between the first sheet part and the second sheet part, wherein at least one of the dot areas in the second sheet part is formed along the first short side or the second short side, wherein the at least one of the dot areas including a first dot area next to the hole in a parallel direction of the first long side or the second long side and a second dot area next to the first dot area in a parallel direction of the first short side or the second short side, and wherein a density of dots in the first dot area is different from a density of dots in the second dot area.

A display device including a display panel; a frame at a rear of the display panel; a plurality of light source assemblies between the display panel and the frame, the light source assemblies providing light for the display panel; and a reflecting sheet between the display panel and the frame and including a first sheet part forming a central area of the reflecting sheet; a second sheet part forming a side area of the reflecting sheet around the first sheet part, the second sheet including vertical dot areas formed on first and second vertical sides of the reflecting sheet and horizontal dot areas formed on first and second horizontal sides of the reflecting sheet; and a plurality of partial ring-shaped dot areas formed on the first sheet part partially around corresponding light source assemblies without completely surrounding the corresponding light source assemblies.

A display device includes a display panel; a frame at a rear of the display panel; a light source between the display panel and the frame, the light source providing light for the display panel; and a reflecting sheet between the display panel and the frame, the reflecting sheet having a rectangular shape with a first long side, a second long side opposite the first long side, a first short side adjacent to the first long side and the second long side, and a second short side opposite the first short side.

A display device includes a display panel; a frame at a rear of the display panel, the frame including a bottom and a sidewall extending from the bottom; a substrate on the frame; a light source mounted on the substrate; a lens mounted on the light source in which the lens includes an upper surface, a lower surface, and a side surface connected with the upper surface and the lower surface; a reflecting layer between the substrate and the lens; and a plurality of dots formed on a top surface of the reflecting layer. Further, the lower surface of the lens includes a groove in which the light source is inserted, and the plurality of dots is arranged around the light source and only in an area under the lens between the side surface and the groove.

A display device includes a display panel; a frame at a rear of the display panel, the frame including a bottom and a sidewall extending from the bottom; a substrate on the frame; a light source mounted on the substrate; a reflective lens mounted on the light source, wherein the lens includes an upper surface having a concave portion, a lower surface, and a side surface, and the upper surface of the reflective lens reflecting at least a first part of light emitted from the light source toward the sidewall of the frame through the side surface of the reflective lens; and a plurality of dots between the substrate and the reflective lens and configured to absorb at least a second part of light from the light source. Further, the plurality of dots are arranged around the light source and in an area within a boundary of the lower surface of the reflective lens.

A display device includes a display panel; a frame at a rear of the display panel; a light source between the display panel and the frame, the light source providing light for the display panel; and a reflecting sheet between the display panel and the frame, the reflecting sheet having a rectangular shape with a first long side, a second long side opposite the first long side, a first short side adjacent to the first long side and the second long side, and a second short side opposite the first short side. Further, the reflecting sheet includes a first sheet part forming a central area of the reflecting sheet, the first sheet part including a first non-dot area; a second sheet part forming a side area of the reflecting sheet around the first sheet part, the second sheet part including dot areas; and a third sheet part forming an outermost area of the reflecting sheet around the second sheet part, the third sheet part including a second non-dot area. In addition, the dot areas in the second sheet part includes a horizontal dot area along the first long side, and a vertical dot area along the first short side.

A display device includes a display panel; a light source; a frame at a rear of the display panel; and a reflecting sheet between the display panel and the frame, the reflecting sheet having a rectangular shape with a first long side, a second long side opposite the first long side, a first short side adjacent to the first long side and the second long side, and a second short side opposite the first short side. Further, the reflecting sheet includes a first horizontal area along the first long side, and a first vertical area along the first short side. In addition, at least one of the first horizontal area and the first vertical area includes a first area including a plurality of first dots, a second area including a plurality of second dots and a third area including a plurality of third dots.

A backlight unit including a frame having a bottom area and a sidewall area extended from the bottom area; a single substrate located in on the bottom area of the frame, a plurality of optical assemblies being mounted on the single substrate; a reflection sheet located the frame and configured to reflect light emitted by the optical assemblies; and an optical sheet located over the reflection sheet. Further, the reflection sheet a first sheet area corresponding to the bottom area of the frame; a second sheet area corresponding to the sidewall area of the frame; and a cut portion cut from the first sheet at one portion abutting on one side of the single substrate.

Display device

A backlight unit and a display apparatus including the same are disclosed. The backlight unit includes a support member being concave rearward so as to define an interior space, the support member including a central portion defining a central area of a rear surface of the interior space and a side portion extending outward from a peripheral edge of the central portion while being inclined forward, a plurality of light sources disposed on the central portion so as to radiate light, a plurality of lenses respectively disposed on the plurality of light sources so as to disperse light from the light sources, a reflective sheet covering front surfaces of the central portion and the side portion, and a plurality of scattering members disposed on corner portions of the reflective sheet and protruding from the reflective sheet. The display apparatus includes the backlight unit and a display panel disposed in front of the backlight unit.

Backlight unit and display apparatus including the same

A display device includes a display panel; a frame at a rear of the display panel; a plurality of substrates on the frame; a plurality of light sources disposed on the plurality of substrates, and including a first light source disposed at a first corner portion of the frame, a second light source disposed at a second corner portion of the frame, a third light source disposed at a third corner portion of the frame, and a fourth light source disposed at a fourth corner portion of the frame; a reflection layer including a first opening where the first light source is located, a second opening where the second light source is located, a third opening where the third light source is located, and a fourth opening where the fourth light source is located; a first absorber disposed on the reflection layer at a first area near the first opening and configured to absorb light emitted by the first light source; a second absorber disposed on the reflection layer at a second area near the second opening and configured to absorb light emitted by the second light source; a third absorber disposed on the reflection layer at a third area near the third opening and configured to absorb light emitted by the third light source; and a fourth absorber disposed on the reflection layer at a fourth area near the fourth opening and configured to absorb light emitted by the fourth light source.

Growing community of inventors

Seoul, South Korea

Eunseok Kim