Samsung Electronics Co., Ltd.

Samsung Display Co., Ltd.

Dong-Kwan Kim

Byung-Yun Joo

Jin-Soo Kim

Sang Hoon Lee

Min-Young Song

Sang-Hoon Lee

Jin-Sung Choi

Seung-Hwan Chung

Sang-hoon Lee

Won-keun Kim

Kyung-suk Oh

Jinsung Choi

Jae-Choon Kim

Yeong-seok Kim

Seung-Tae Hwang

Hwa-il Jin

Jin-sung Choi

Byungyun Joo

Byung- Yun Joo

A semiconductor package includes a package substrate, a first semiconductor device arranged on the package substrate, at least one second semiconductor device on the first semiconductor device to partially cover the first semiconductor device from a top down view, a heat dissipating insulation layer coated on the first semiconductor device and the at least one second semiconductor device, a conductive heat dissipation structure arranged on the heat dissipating insulation layer on a portion of the first semiconductor device not covered by the second semiconductor device, and a molding layer on the package substrate to cover the first semiconductor device and the at least one second semiconductor device. The heat dissipating insulation layer is formed of an electrically insulating and thermally conductive material, and the conductive heat dissipation structure formed of an electrically and thermally conductive material.

Semiconductor package and method of manufacturing semiconductor package

A backlight assembly includes an optical member that diffuses light generated from lamps. The optical member includes first and second diffusion members that are designed to have light transmittance that complementarily vary according to areas. Thus, an optical member capable of supplying light having uniform brightness onto the whole display area of the LCD is easily designed.

Backlight assembly and liquid crystal display having the same

A display apparatus includes a display panel and a backlight unit for an embodiment. The display panel includes a plurality of pixels and the backlight unit supplies light to the display panel. The backlight unit includes a light source, which generates the light, and an optical sheet. The optical sheet includes a plurality of prism patterns formed on a surface of the optical sheet facing the display panel. The prism patterns include a plurality of peaks and a plurality of valleys to change the path of the light, and a plurality of diffusion patterns arranged at the peaks and valleys.

Display apparatus and method of manufacturing optical sheet for the same

Disclosed herein are a light guide plate and a backlight assembly using the same, which may improve the uniformity of light using prism patterns having a trapezoidal shape. The light guide plate includes a body, a plurality of first projections, and a plurality of second projections. The body includes an incident surface to which light is incident and an emitting surface from which the incident light is emitted. The plurality of first projections is disposed on the emitting surface of the body and has a trapezoidal shape in a section perpendicular to the incident surface. The plurality of second projections is disposed on the emitting surface of the body and has a shape symmetrical to a shape of the first projections.

Light guide plate and backlight assembly using the same

An optical sheet includes a base layer, a light-condensing layer and a plurality of light-reflecting portions. The light-condensing layer includes a plurality of light-condensing portions formed on a second surface of the base layer along a first direction extending from a first side surface to a second side surface perpendicular to the first side surface. The light-condensing portions extended in a second direction crossing the first direction at an angle with respect to the side surface. The light-reflecting portions are formed in the first surface along the second direction and corresponding to a plurality of recesses where the light-condensing portions meet each other. The center of the light-reflecting portion is off set from the recesses along the first direction.

Optical sheet having offset condensing and reflecting elements and display device having the same

A manufacturing method of an optical member includes forming an optical film which has a first glass transition temperature and includes a pattern formed on a surface of the optical film, and an optical plate which has a second glass transition temperature that is lower than the first glass transition temperature, disposing the optical film and the optical plate adjacent each other so that the pattern faces the optical plate, pressurizing the optical film and the optical plate while heating the optical plate to the second glass transition temperature or higher, and forming the optical member by the pressurizing and the heating.

Manufacturing method of a display device

A light-guide plate includes a base plate, first protrusion patterns and second protrusion patterns. The first protrusion patterns are formed on a left portion of an upper surface of the base plate with respect to a central line of the upper surface. The first protrusion patterns have a cross-section of a trapezoidal shape which has a top and a bottom parallel with each other and first and second inclined sides inclined at different angles with respect to the bottom side. The second protrusion patterns are formed on a right portion of the upper surface with respect to the central line. A cross-section of the second protrusion patterns have the trapezoidal shape and disposed substantially symmetrical to the first protrusion patterns with respect to the central line.

Light-guide plate having a protrusion pattern and display apparatus having the same

A backlight assembly and a display apparatus having the backlight assembly are disclosed. A diffusion plate is provided above a plurality of lamps. Diffusion patterns that cause contrast inversion and diffusion patterns that do not cause contrast inversion are arranged on a surface of a diffusion plate, in an alternating manner along a longitudinal direction of the lamps. Thus, a brightness difference between a first area in which the lamps are positioned and a second area between two adjacent lamps is reduced, thereby improving a brightness uniformity of light from the backlight assembly.

Backlight assembly with improved brightness uniformity and display apparatus having the same

An optical sheet includes a base layer, a light-condensing layer and a plurality of light-reflecting portions. The base layer includes a first surface and a second surface. The light-condensing layer includes a plurality of light-condensing portions with a first pitch. The light-condensing portions are formed along a first direction of the second surface. The light-reflecting portions are formed in the first surface to be spaced apart from each other along the -first direction in correspondence with a plurality of grooves, each groove formed between two light-condensing portions. An interval distance between a center of the light-condensing portion and an edge of the light-reflecting portion increases when moving toward the edge of the first surface from a center of the first surface along the first direction. Therefore, the number of the optical sheets used for the display device may be reduced.

Growing community of inventors

Seoul, South Korea

Dong-Kwan Kim