Samsung Display Co., Ltd.

Beomjin Kim

Jin Hwan Choi

Dongwon Choi

Jonghwa Lee

Taewoong Kim

Sangjun Lee

Jaeho Ahn

Jiyeon Kim

Jino Lim

Tae Woong Kim

Yeongji Im

Cheol Jang

Jaeyoung Lee

Seunggak Yang

Jaemin Lee

Hyunggi Jung

Kihwan Kim

Soonchang Yeon

Tae-ho Kim

Sunghyun Lee

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 support layer disposed below the display module, a support layer disposed below the display module, and including a rolling portion wound and unwound in a first direction, where the rolling portion includes a central portion, a first region between a first edge of the rolling portion and the central portion, and a second region between a second edge of the rolling portion and the central portion, a first support bar disposed in the central portion, second support bars disposed in the first region, and third support bars disposed in the second region. A width of each of the second support bars in the first direction is greater than a width of the first support bar, and widths of the second support bars in the first direction gradually increase as being closer to the first edge.

An organic light emitting device includes: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode, the organic layer including an emission layer that includes a first emission layer, a second emission layer, and a third emission layer, wherein at least one of the first emission layer, the second emission layer, or the third emission layer includes at least one first compound, and formulae for the first compound include at least oneN.

Organic light-emitting device and apparatus including the same

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.

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

A display device includes a housing, a display module, a support film, and a frame. The display module is accommodated in the housing in a first state and unrolled from the housing to a first direction in a second state. The support film is accommodated in the housing in the first state and unrolled from the housing to the first direction in the second state to support the display module. The frame shrinks to a first shape in the first state and expands to a second shape in the second state in a way such that the frame applies a tensile stress to the support film in the second state.

A display device includes a display module rolled in a second direction crossing a first direction with respect to a rolling axis extending in the first direction and a module supporter disposed under the display module. The module supporter includes a support layer, a plurality of coating layers disposed in the support layer, extending in the first direction, and arranged in the second direction, and a plurality of support bars each being disposed in a corresponding coating layer among the plurality of coating layers.

Display device and method of manufacturing the same

A display device includes a display module. A support layer is disposed below the display module. A plurality of support bars is disposed inside the support layer and extends outside of the support layer. Each of the plurality of support bars includes first and second ends that are disposed outside of the support layer. A plurality of joints are configured to receive the first and second ends of the plurality of support bars. The plurality of joints are coupled to each other. The coupled plurality of joints are configured to rotate with respect to each other.

An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an organic layer located between the first electrode and the second electrode and including an emission layer, wherein the emission layer includes a host and a dopant, the host includes a first compound and a second compound, and the first compound, the second compound, and the dopant are different from one another. Two compounds in the host included in the emission layer may have different HOMO and LUMO energy levels and may form an exciplex, and a difference between a HOMO energy level and a LUMO energy level of the exciplex (ΔE) may be greater than a difference between a HOMO energy level and a LUMO energy level of the dopant (ΔE).

A display device includes a display module and a module supporter below the display module. The module supporter includes a support layer, and a plurality of support bars in the support layer and arranged in a first direction. The plurality of support bars extend in a second direction that intersects the first direction. At least one groove having a predetermined shape is formed on lateral surfaces of at least one of the plurality of support bars. The lateral surfaces are opposite to each other in the first direction.

An electronic device includes a display module including a display unit and a hinge unit coupled to the display unit and configured to be rolled with the display unit, the display unit including a display panel, a flexible circuit board connected to the display panel, and a main circuit board connected to the flexible circuit board, a housing including sidewall portions each extending in a first direction, in which at least one of the sidewall portions includes an accommodation groove to which the main circuit board is inserted, and the sidewall portions are deformable between a closed state of surrounding the display module and an opened state of exposing at least a portion of the display module outside of the housing.

Electronic device

A rollable display device including: a support module; a display module disposed on the support module and including a display area and a non-display area adjacent to the display area; and a resin layer disposed between the support module and the display module, the display module including a display panel including a plurality of pixels, the support module including: a plurality of support bars extending in a first direction and arranged in a second direction crossing the first direction, wherein the support bars are spaced apart from each other; and a plurality of hinges disposed between the support bars and coupled with the support bars disposed adjacent thereto, and wherein each of the support bars is rotatably coupled with the hinges with respect to a driving axis extending in the first direction and the driving axis penetrates the display panel when viewed in a cross-section.

Rollable display device and a method of manufacturing the same

A display apparatus includes a substrate having a display area and a peripheral area outside the display area, a pad located in the peripheral area, a first line located in the peripheral area and having one end electrically connected to the pad and the other end facing the display area, a second line having one end facing the other end of the first line and extending into the display area, the one end of the second line being spaced apart from the first line, a first connector line electrically connecting the other end of the first line to the one end of the second line, and a first power line intersecting the first line, the first power line being disposed on a first layer different from a second layer on which the first line is disposed.

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Asan-si, South Korea

Beomjin Kim