Samsung Display Co., Ltd.

Kiju Im

Taeyoung Kim

Jongwoo Park

Hyuncheol Hwang

Min-Sung Kim

Minsung Kim

Thanh Tien Nguyen

Hyojung Kim

Younjae Jung

Junehwan Kim

Thanhtien Nguyen

A display device having a thin-film transistor with increased mobility of electrons or holes includes a first semiconductor layer arranged on a substrate and including a first channel region, a first source region, and a first drain region; a first stressor arranged between the substrate and the first semiconductor layer and which overlaps the first source region in a plan view; a second stressor arranged between the substrate and the first semiconductor layer and which overlaps the first drain region in the plan view, where the second stressor is spaced apart from the first stressor; a gate insulating layer arranged on the first semiconductor layer; and a first gate electrode arranged on the gate insulating layer and which overlaps the first semiconductor layer in the plan view.

Display device including stressors

A display panel includes: a plurality of display elements arranged in a display area around an opening, each of the display elements including a pixel electrode, an emission layer above the pixel electrode, and an opposite electrode above the emission layer; and a groove between the opening and the display area, wherein the groove includes a first recessed portion having a first width in a first layer, and a second recessed portion in a second layer on the first layer and having a second width greater than the first width, and a side surface of the groove includes steps.

Display panel including a groove between an opening and a display area

A rollable display device includes a flexible display module configured to display an image, a roller configured to roll up the flexible display module, and a plurality of support block groups each including a plurality of support blocks on the flexible display module and arranged in a first direction crossing a second direction of a rolling axis of the roller, the plurality of support block groups including a first support block group including first support blocks, and a second support block group including second support blocks each having a width in the first direction that is greater than a width of a corresponding one of the first support blocks in the first direction, wherein the first support block group is between the roller and the second support block group.

Rollable display device

A display apparatus includes a substrate including a first area, a second area, and a bending area, the bending area disposed between the first area and the second area and bending about a bending axis running along a first direction; a first piezoelectric device disposed over the bending area; and a pressure sensor. The first piezoelectric device is configured to contract or expand according to a pressure variation sensed by the pressure sensor.

Bendable display apparatus

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Yongin-si, South Korea

Kiju Im