Samsung Electronics Co., Ltd.

Samsung Display Co., Ltd.

Joong-Hyun Kim

In-Sun Hwang

Sang-Yu Lee

Seong-Yong Hwang

Ju-Hwa Ha

Jin Wook Seo

Jin-Seob Byun

Jin-Sung Choi

Min-young Song

Hae-Il Park

Kang-Woo Lee

Seung-Mo Kim

Hye-Eun Park

Hyung Jin Kim

Sang-Won Lee

Hyoung-Joo Kim

Dong-Hoon Kim

Seock-Hwan Kang

Dong-Min Yeo

Jae Sang Lee

Young-Ran Son

Seog-Hyun Cho

Yong-Kyu Kang

Sang-Hoon Lee

Gi-Cherl Kim

Se-Ki Park

Dong-Woo Kim

Jeong-Hwan Lee

Hyeon-Yong Jang

Ji-Won Lee

Sangwon Lee

Young-keun Lee

Seok-Hyun Nam

Taeho Lee

Yong-Hoon Kwon

Joon-Hak Oh

Hyeong-Suk Yoo

Yongkyu Kang

Byoung Dae Ye

Dong-Yeol Yeom

Seung-Hwan Chung

Jinsung Choi

Jin A Seo

Dong-Kwon Kim

Jong-Sun Lim

Gi-Chang Park

Jin-Mi Jung

Sang-Heon Ye

Nam-Ok Kwon

Hae-Soo Ha

Ki-Yeon Lee

Jin-Seon Byun

Hac-Il Park

Ju-Youn Son

A light guide plate for a backlight. The light guide plate includes: a light source unit for generating light; a light guide plate proximate to the light source unit and including an upper surface and a lower surface; and a light emission pattern configured to diffuse a portion of the light directed toward an image display panel, and a first straight pattern configured to channel the light along a direction substantially parallel to a direction of propagation of the light generated by the light source unit, both the light emission pattern and the first straight pattern being disposed on one of the upper surface and the lower surface of the light guide plate, in which the first straight pattern has peaks and valleys formed in alternating and repeating manner in a direction substantially perpendicular to a direction of propagation of the light generated by the light source unit.

Light guide plate for backlight and manufacturing method therefor

A display device includes: a first chassis including a bottom surface, and a side wall which extends from an edge of the bottom surface; a light guide plate in the first chassis; a first fixing member which overlaps the side wall of the first chassis and contacts an upper surface of the light guide plate; and a first fastening member which fastens the first fixing member to the side wall of the first chassis. The first chassis includes a groove which extends through the side wall of the first chassis, the light guide plate includes a first protrusion which protrudes from an edge of the light guide plate and extends into the groove, and the first fixing member contacts an upper surface of the first protrusion of the light guide plate.

Display device

An optical unit includes a base, a light-condensing member disposed on the base to condense a first portion of light that is incident onto the base and protrusion members disposed on a surface of the light-condensing member to scatter a second portion of the light that is incident onto the base. A backlight assembly includes light sources, an optical unit receiving light from the light sources to condense and scatter the light, and may also include an optical member disposed over the optical unit to enhance the front luminance of the light. A display device includes light sources, an optical module and a display panel. Thus, display quality of the display device may be enhanced.

Optical unit, backlight assembly having the same and display device having the same

A lens includes an upper flat surface having a first outer diameter, a bottom surface having a second outer diameter and a third inner diameter, an external curved surface which connects the upper flat surface and the bottom surface, and an inner curved surface which protrudes toward the upper flat surface from the bottom surface at the third inner diameter.

Lens, backlight assembly and display apparatus having the same

There is provided a method of boosting a local dimming signal. In the method, it is determined whether or not local dimming signals, which are applied for individually driving light source blocks per frame, satisfy boosting conditions. Then, a predetermined local dimming signal corresponding to at least one of the light source blocks is boosted to a reference luminance value when the local dimming signals continuously satisfy the boosting conditions, and the boosting luminance of the predetermined local dimming signal at the reference luminance value is gradually decreased after a light adaptation time of an observer's eye. When the luminance of light source blocks that are boosted is gradually decreased before the light adaptation time or luminance of light source blocks that will be boosted is gradually increased to the light adaptation time, power consumption required to boost the light source blocks may be decreased.

Method of boosting a local dimming signal, boosting drive circuit for performing the method, and display apparatus having the boosting drive circuit

An optical plate and a tiled display apparatus having the optical plate of the present invention include a base substrate and a Fresnel lens having a plurality of Fresnel patterns protruding toward the base substrate from a flat upper surface. The optical plate further comprises an anti-reflection layer, and a high-refraction layer having a refractive index higher than that of the anti-reflection layer. The optical plate comprises an adhesive layer disposed between the Fresnel lens and the base substrate to affix the Fresnel lens to the base substrate, and a spacer disposed between the Fresnel lens and the adhesive layer to maintain a distance between the Fresnel lens and the adhesive layer. The base substrate includes a first portion having a first thickness, a second portion having a second thickness thinner than the first thickness and a connecting portion disposed between the first and second portions.

Optical plate and tiled display apparatus having the same

A light-emitting assembly includes a light guide plate (LGP), a first infrared light-emitting part, a second infrared light-emitting part and a visible light-emitting part. The LGP has printed circuit patterns formed on a lower surface thereof. The first infrared light-emitting part includes a plurality of first infrared light-emitting diodes (LEDs) disposed at a first side of the LGP and spaced apart by intervals having different sizes. The second infrared light-emitting part includes a plurality of second infrared LEDs disposed at a second side of the LGP and spaced apart by intervals having different sizes. The visible light-emitting part includes a plurality of visible LEDs disposed at a third side of the LGP and spaced apart by intervals having different sizes, so that infrared light and visible light that is emitted from the two different kinds of light sources may be uniformly provided to a touch screen panel.

Light-emitting assembly and interactive display device having the same

A display apparatus including a display panel, a plurality of light sources provided below the display panel to emit light, and an optical plate provided between the display panel and the light sources to diffuse light are disclosed according to one or more embodiments. The optical plate comprises a base including a plurality of regions having different thicknesses, and a convex pattern formed on the base.

Display apparatus including an optical plate and method of manufacturing the same

A light source assembly includes first light sources emitting first light in a first wavelength range, second light sources emitting second light in a second wavelength range which is at least partially different from the first wavelength range, and an optical member on which light emitted from the first light sources and the second light sources is incident. A distance between adjacent first light sources, and a distance between adjacent second light sources is defined as an average pitch. The average pitch of the second light sources arranged in a specific direction, is larger than the average pitch of the first light sources arranged in the specific direction. The optical member has a reflectance with respect to the second light, which is larger than a reflectance with respect to the first light.

Light source assembly and touch screen device having the same

A backlight assembly includes a plurality of light sources emitting light and a diffusion plate. The diffusion plate includes an incident surface on which the light is incident, an exit surface which is opposite the incident surface and from which the light exits, and first and second lens patterns which are disposed on the exit surface and have different shapes from each other. Each of the first lens patterns includes a first curved portion which forms a curve and first linear portions which extend from both ends of the first curved portion, respectively. Each of the second lens patterns includes a second curved portion which forms a curve and second linear portions which extend from both ends of the second curved portion, respectively.

Backlight assembly

An optical sheet () includes a base layer () and a light condensing pattern () formed on the base layer integrally with the base layer and including one or more peaks and one or more valleys. Each of the base layer and the light condensing pattern includes a continuous phase and a dispersed phase. The dispersed phase is stretched in a main stretching direction.

Optical sheet and method of manufacturing the same

An optical sheet includes a reflective polarizer and a filter layer. The reflective polarizer reflects a part of incident light and transmits another part of the incident light. The filter layer selectively reflects the transmitted light passed through the reflective polarizer. The filter layer reflects at least one of a first wave band that is an overlapped area between a green peak and a blue peak in the spectrum of incident light, and a second wave band that is an overlapped area between a green peak and a red peak in the spectrum of incident light.

Optical sheet and display apparatus having the same

A backlight assembly includes; light sources which emit light, a diffusion plate including an incident surface on which the light is incident, an exit surface which is disposed substantially opposite to the incident surface and from which the light exits, and a lens pattern which is disposed on the exit surface, and an optical sheet which overlaps the diffusion plate and includes a prism pattern on a top surface thereof, wherein each lens of the lens pattern includes a first curved portion which forms part of a curve and first linear portions which extend from both ends of the first curved portion, respectively, and each prism of the prism pattern includes a second curved portion at an apex thereof.

Backlight assembly and display device having the same

Growing community of inventors

Suwon-si, South Korea

Joong-Hyun Kim