Samsung Display Co., Ltd.

Samsung Sdi Co., Inc.

Sangjun Lee

Jin Hwan Choi

Jinhyon Lee

Beomjin Kim

Tae Woong Kim

Hyeri Eom

Jonghwa Lee

Daeseop Lim

Hongjeong Kim

Jiyeon Kim

Taewoong Kim

Byoungyong Kim

Dongwon Choi

Jeongho Hwang

Bokhyun Ka

Euiyun Jang

Kyeuyoon Sheem

Jaeho Ahn

Inseok Yeo

Donghyuk Chang

Tae-ho Kim

A display device includes a first roller extending in a first direction and provided with a first tunnel defined therein to extend in the first direction and rotates about a first rotational axis parallel to the first direction, a display module connected to the first roller and wound around or unwound from the first roller, an inner roller extending in the first direction and disposed in the first tunnel and which rotates about the first rotational axis, a first gear connected to each of opposite sides of the inner roller in the first direction, where the plurality of first gears is disposed on an outer surface of the first roller, and a first elastic body disposed in the first tunnel and connected to the inner roller and the first roller.

Display device

A display apparatus includes a first roller and a second roller each rolling about a rolling axis extending along a first direction and spaced apart from each other in a second direction crossing the first direction, a display panel connected to the first roller, and a support connected to the second roller and disposed on a rear surface of the display panel to support the display panel. A hole passing through the support is defined in the support, the support includes an end part surrounding a portion of the hole and extending along the first direction and a side part extending along the second direction from the end part, and the end part is convex toward the display panel in a cross section.

Display apparatus

A display device includes: a display module, a lifting part disposed on a rear surface of the display module and connected to the display module, and a drive belt connected to the lifting part and which moves in a first direction to extend and retract the lifting part in the first direction. The drive belt moves along a guide groove that is defined in the lifting part and that is open in the first direction.

The present invention relates a negative electrode for a lithium secondary battery, and a lithium secondary battery comprising same, wherein the negative electrode for a lithium secondary battery comprises a current collector, and a negative electrode active material layer including a first layer formed on the current collector and a second layer formed on the first layer, the first layer containing a first carbon-based negative electrode active material, and the second layer containing a second carbon-based negative electrode active material, wherein the degree of divergence (DD) value of the first layer is 30-90% of the DD value of the negative electrode active material layer, the DD value is defined by formula 1 below.DD (Degree of Divergence)=()*100  [Formula 1]

Negative electrode for lithium secondary battery and lithium secondary battery comprising same

A display module including a display unit and a support member disposed below the display unit and including first areas and second areas. The support member includes a matrix, a first supporter disposed in the matrix and including first extension parts, each extending in a first direction and spaced apart from each other in a second direction crossing the first direction, and a second supporter disposed in the matrix and including second extension parts, each extending in the first direction and spaced apart from each other in the second direction, and connection parts disposed between the second extension parts, where the second extension parts and the connection parts define openings in the second supporter.

Rollable display device

The present invention relates an anode for a lithium secondary battery and a lithium secondary battery comprising same. The anode for a lithium secondary battery comprises a current collector; and an anode active material layer formed on the current collector and including a carbon-based anode active material, wherein the anode active material layer has a multi-layer structure of three or more layers and at least one layer of the anode active material layer is an oriented layer having a degree of divergence (DD) of 19 or greater, the DD being defined by the following formula 1:Degree of Divergence (DD)=()*100  [formula 1](In formula 1,

Anode for lithium secondary battery and lithium secondary battery comprising same

An exemplary embodiment of the present invention provides a spiral-wound electrode assembly including: a negative electrode and a positive electrode, each of which is configured to include a substrate, and a first composite material and a second composite material formed on opposite surfaces of the substrate; and a separator disposed between the negative electrode and the anode, wherein the first composite material of the negative electrode is disposed farther away from a center of the electrode assembly than the second composite material of the negative electrode, and the first composite material of the negative electrode is oriented with respect to a first surface of the substrate of the negative electrode.

Electrode assembly and rechargeable battery including the same

Provided is a printed circuit board including a base substrate, first row pads, and second row pads. The base substrate has two sides, that can be adjacent, respectively extending in first and second directions. A plurality of pad group areas successively positioned along the first direction are defined on the base substrate. The first row pads are respectively disposed within the pad group areas and successively positioned along a third direction. The second row pads are respectively disposed within the pad group areas, successively positioned along the third direction, and spaced apart from the first row pads. Each of the second row pads is a predetermined distance from a corresponding one of the first row pads in the second direction.

Growing community of inventors

Yongin-si, South Korea

Sangjun Lee