Samsung Display Co., Ltd.

Samsung Sdi Co., Inc.

Yoona Kim

Minsoo Kim

Heesoon Jeong

Suyeon Yun

Sunghoon Kim

Sunghwan Kim

Youngmin Kim

Hyun Sup Lee

Sunmin Hwang

Seongmin Wang

Chan-Jae Park

Kikyung Youk

Sangduk Lee

Hyunji Song

Jaeyeol Baek

Young-Cheol Jeong

Anna Ryu

Seulgi Jeong

Younhee Nam

Sunok Oh

Byeri Yoon

Soo Yeon Han

Jinhyung Kim

Jeehyun Lee

Sunhae Kang

Seunghee Hong

Chungheon Lee

Byunghee Choi

An embodiment of a display device includes: a first display area; a second display area including a transmission area; a third display area between the first display area and the second display area; and a plurality of pixel circuits in the third display area and electrically connected to the plurality of third light-emitting elements, respectively. Each of the plurality of pixel circuits includes: a first thin-film transistor including a first semiconductor layer and a first gate electrode overlapping at least a portion of the first semiconductor layer; a second thin-film transistor including a second semiconductor layer including a material different from that of the first semiconductor layer and a second gate electrode overlapping at least a portion of the second semiconductor layer; and a bottom shielding layer below the second semiconductor layer and overlapping at least a portion of the second semiconductor layer on a plane.

Display device

An organic light emitting diode (OLED) display device includes: a display panel including a first region and a second region; and a scan driver including a plurality of first stages and a plurality of second stages which are coupled to each other. The plurality of first stages is configured to provide scan signals and sensing signals to the first region, and the plurality of second stages is configured to provide the scan signals and the sensing signals to the second region. A configuration of the plurality of first stages is different from a configuration of the plurality of second stages.

Organic light emitting diode display device performing a sensing operation

An ultrasonic bonding apparatus includes a stage having an upper surface on a plane defined by a first direction and a second direction crossing the first direction, a head part spaced apart from the stage in a third direction crossing the first direction and the second direction, a first ultrasonic generator which vibrates in a direction parallel to the first direction, and a second ultrasonic generator which vibrates in a direction parallel to the third direction, where each of the first ultrasonic generator and the second ultrasonic generator may be coupled to the stage or the head part.

Ultrasonic bonding apparatus and method for ultrasonic bonding using the same

A method of producing a layer structure and a method of forming a pattern, the method of producing a layer structure including coating a first composition on a substrate that has a pattern thereon; curing the coated first composition to form a first organic layer; applying a liquid material to the first organic layer to remove a part of the first organic layer; and coating a second composition on remaining parts of the first organic layer; and curing the coated second composition on the remaining parts of the first organic layer to form a second organic layer: wherein the first composition and the second composition each independently include a solvent, and a polymer including a structural unit represented by Chemical Formula 1,*A-B*.&#x2003;&#x2003;[Chemical Formula 1]

Method of producing layer structure, and method of forming patterns

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Hwaseong-si, South Korea

Yoona Kim