Lg Display Co., Ltd.

Youngmin Oh

MinHyung Kim

Sumin Lee

Hyunseung Kim

HyeJeong Park

Seongil Kim

Junghyun Kim

Embodiments relate to a light path control device, including a first viewing angle control member including light-shielding patterns patterned at regular intervals and a pattern cover layer to cover the light-shielding patterns; and a diffractive transmitting layer that is disposed on a lower portion of the first viewing angle control member and includes a plurality of slits, and a display device including the light path control device.

Light path control device and display device including the same

A display includes a display panel; and a backlight unit with a first light source package, a second light source package facing towards the first light source package, and a light guide plate disposed between the first light source package and the second light source package. The light guide plate includes first and second patterns protruding from a bottom surface of the light guide plate, the patterns including at least one inclined surface with respect to the bottom surface of the light guide plate, the inclined surface facing towards a corresponding one of the first light source package or the second light source package.

Display backlight unit with edgelit light guide having protruding pattern on bottom surface

A light path control member according to an aspect includes a first substrate; a first electrode disposed on the first substrate; a light path control unit disposed on the first electrode; a second electrode disposed on the light path conversion unit; and a second substrate disposed on the second electrode, wherein the light path control unit includes a light transmission part and a light path conversion part around the light transmission part, the light transmission part includes first alignment materials, the light path conversion part includes second alignment materials, an alignment direction of the second alignment materials change according to a voltage applied to at least one of the first electrode or the second electrode.

Light path control member, and display device including same

An organic light-emitting display device includes a first substrate having sub-pixel areas, each sub-pixel area having a light-emitting area and a non-light-emitting area; thin-film transistors respectively in non-light-emitting areas of the sub-pixel areas; a first planarization layer in the sub-pixel areas while covering the thin-film transistors; organic light-emitting elements on the first planarization layer and in light-emitting areas of the sub-pixel areas; a liquid crystal layer on the organic light-emitting elements and in the sub-pixel areas and in an area between the sub-pixel areas; and a second substrate on the liquid crystal layer. Liquid crystal molecules of the liquid crystal layer in the light-emitting areas are in a hybrid alignment. In the hybrid alignment, an alignment of the liquid crystal molecules gradually changes from a horizontal alignment to a vertical alignment. Liquid crystal molecules of the liquid crystal layer in the non-light-emitting areas are in a tilted alignment.

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Paju-si, South Korea

Youngmin Oh