Samsung Display Co., Ltd.

Kyu Hwan Hwang

Hwi Dae Kim

Jeongkuk Kim

Areum Lee

Seungyong Song

Dong Chan Kim

Jong Hyuk Lee

Eung Do Kim

Bo Ra Jung

Sung Chul Kim

Yeon Hwa Lee

Seok Gyu Yoon

Da-hee Jeong

Duck Jung Lee

Young Woo Song

Young-Woo Song

Hye Yong Chu

Won-Jong Kim

Youngmin Moon

Seung Yong Song

In Bae Kim

Yeonhwa Lee

Jaesik Kim

Kwang Soo Bae

Won Jong Kim

Jae Ik Kim

Jung Sun Park

Joongu Lee

Taewook Kang

Duckjung Lee

Joon Gu Lee

Jae Sik Kim

Eunbee Jo

Sung Soon Im

Seok-Gyu Yoon

Jaeik Kim

Jungsun Park

Dong Kyu Seo

Sungsoon Im

Sangha Park

Minho Moon

Seokgyu Yoon

Ji Young Choung

Hyoung Sub Lee

Arong Kim

Jaemin Hong

Heemin Park

Jin Baek Choi

Soonchul Chang

Hye Jin Gwark

Dae-young Lee

Hyun Sung Bang

Seungmin Jin

Kanghyun Nam

Da-Hee Jeong

Jin-soo Jung

Disclosed is a display device including a base layer, a circuit layer including a plurality of transistors spaced apart from each other and disposed on a top of the base layer, a plurality of insulating layers disposed on a top of the base layer, and a plurality of contact electrodes electrically connected to the transistors, respectively, a first light emitting unit disposed on a top of the circuit layer, a second light emitting unit, and a lower protrusion disposed between at least one of the transistors and the second lower electrode, wherein at least one of the contact electrodes is disposed to extend to a top surface of the lower protrusion in the circuit layer while following a shape of the lower protrusion to simplify an etching process of an encapsulation layer.

Display device

An organic light-emitting display device includes a first pattern electrode, a second pattern electrode, and a third pattern electrode, each being electrically connected to a driving electrode, an organic light-emitting structure disposed on the first to third pattern electrodes, a common electrode disposed on the organic light-emitting structure, and a resonance-adjusting pattern disposed between the first pattern electrode and the organic light-emitting structure, the resonance-adjusting pattern overlapping a first light-emitting area in a plan view and including a conductive oxide. The organic light-emitting structure includes a hole-transporting layer, a light-emitting layer, and an electron-transporting layer. The light-emitting layer includes a common light-emitting layer continuously extending in the organic light-emitting structure, and a light-emitting pattern overlapping the third pattern electrode in a plan view.

Organic light-emitting display device and method for manufacturing the same

A mask assembly includes a frame including a frame opening, and a mask disposed on the frame. The mask includes a body portion including an upper surface and a lower surface opposing each other and deposition openings spaced apart from each other, protrusions protruding from the upper surface and surrounding the corresponding deposition openings, and at least one step formation pattern overlapping the protrusions in a plan view and disposed in the body portion.

Mask assembly and method for manufacturing the same

A method of manufacturing a deposition mask includes preparing a mask-target substrate which has one surface on which a sacrificed layer pattern is formed and comprises a cover area covered by the sacrificed layer pattern and a plurality of exposed areas exposed by the sacrificed layer pattern; forming holes in the exposed areas of the mask-target substrate by emitting laser toward the mask-target substrate; and removing the sacrificed layer pattern, wherein the sacrificed layer pattern has a higher reflectance with respect to the laser than a reflectance of the mask-target substrate.

Deposition mask and method of manufacturing the deposition mask

A display device may include a first electrode, a second electrode, an emission layer, an intervening layer, and a first encapsulation layer. The second electrode may overlap the first electrode. The emission layer may be disposed between the first electrode and the second electrode, may overlap the first electrode, and may include a light emitting material. The intervening layer may directly contact the second electrode, may be spaced from each of the first electrode and the emission layer, and may include a fluorine compound. A first section of the first encapsulation layer may overlap the emission layer. The intervening layer may be positioned between the second electrode and a second section of the first encapsulation layer.

Display device and method of manufacturing the same

Provided is a mask manufacturing method which includes preparing a mask sheet and a frame, stretching the mask sheet, and fixing the stretched mask sheet to the frame, and forming cell openings in the mask sheet fixed to the frame.

Mask

A mask includes a body unit through which a deposition opening is defined, and a protrusion unit through which a pattern opening is defined and which protrudes from a corner of the body unit, where a thickness of the body unit is greater than a thickness of the protrusion unit.

Mask assembly and deposition apparatus including the same

A deposition mask for manufacturing a display panel includes a metallic base having a thickness of about 50 micrometers to about 200 micrometers and a plurality of openings defined therein, wherein at least some of the openings include a first opening having a first width and a second opening having a second width smaller than the first width respectively defined along a thickness direction of the metallic base, and wherein the metallic base includes a first part in which the first opening is defined, and a second part in which the second opening is defined, the second part having a width that increases in a direction downward from a top surface of the metallic base along the thickness direction of the metallic base.

Deposition mask, method of manufacturing the same, and method of manufacturing display panel

The present application relates to a display device. The display device includes a window including a front area and a corner area, and a display panel coupled to the window. The display panel includes a first area and a second area corresponding to the front area and the corner area, respectively. The second area includes a plurality of unit areas, a plurality of stretchable areas disposed between the plurality of unit areas, where a plurality of opening areas are defined through the display panel to be adjacent to the plurality of unit areas. A light emitting area of the second area has an area greater than an area of a corresponding light emitting area of the first area.

Display panel including non-uniform pixel density and display device including the same

Mask and mask manufacturing method

A display device includes a display panel in which a first display region and a second display region adjacent to the first display region are defined. The display panel includes main pixels disposed in the first display region, first sub-pixels disposed in a first sub-region of the second display region, and second sub-pixels disposed in a second sub-region of the second display region and which have a different pixel structure from the main pixels.

An organic light emitting diode includes: a first electrode; a second electrode facing the first electrode; a light emission layer between the first electrode and the second electrode; an electron injection layer between the second electrode and the light emission layer; and a buffer layer between the electron injection layer and the second electrode, where the electron injection layer includes a dipolar material and a first metal, and the buffer layer includes a metal having a work function of 4.0 eV or less.

Organic light emitting diode and organic light emitting diode display including the same

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Yongin-si, South Korea

Kyu Hwan Hwang