Samsung Display Co., Ltd.

Seil Kim

Sang Min Yi

Kwanhee Lee

Euigyu Kim

Junhyeuk Ko

Seungju Hong

Woosik Jeon

Sanghoon Kim

Sangshin Lee

Sangyeol Kim

Seungjin Lee

Sung Soo Lee

Eonseok Oh

Jongsung Park

Jongbum Kim

Sangmin Yi

Yonghan Lee

Jongdae Lee

Daewon Baek

Okkeun Song

Hongkyun Ahn

Eunji Choi

Bomi Choi

Junghyun Ahn

Jaegoo Lee

Jungwoo Ko

Hong-kyun Ahn

A metal mask according to some embodiments of the present disclosure may include a metal thin film having a first thickness and having a first region including a transmission region defining first openings penetrating the metal thin film, and a non-transmission region including an etching portion having a second thickness that is smaller than the first thickness, and a second region adjacent the first region, and defining second openings penetrating the metal thin film, wherein an opening density of the first region is less than an opening density of the second region, the opening density of the first region being defined as a number of the first openings per an area of the first region, and the opening density of the second region being defined as a number of the second openings per an area of the second region.

Metal mask

A mask includes: a body portion including a cell area, and a peripheral area surrounding the cell area, the body portion having a plurality of cell openings defined therein; and a plurality of mark patterns at the peripheral area. The cell area includes: a first area; and a second area adjacent to the first area, and the plurality of cell openings includes: first cell openings defined at the first area, and spaced from each other; and second cell openings defined at the second area, and spaced from each other. Each of the mark patterns includes at least one recess portion, and has a point-symmetrical shape with respect to a corresponding symmetry point.

Mask and mask assembly

A mask includes a first mask that includes a first long side that extends in a first direction and a first short side that extends in a second direction that crosses the first direction and that includes a first edge portion, a first center portion, and a first welded portion, that are sequentially arranged in the first direction. The mask further includes a second mask that includes a second long side that extends in the first direction and a second short side that extends in the second direction and that includes a second welded portion, a second center portion, and a second edge portion, that are sequentially arranged in the first direction. The first welded portion is in contact with the second welded portion.

Mask and method of manufacturing the same

A display device includes: a substrate comprising a first display area and a second display area, the first display area comprising a transparent area and the second display area being arranged to surround at least a portion of the first display area; a first pixel in the first display area and comprising a first pixel electrode, a first intermediate layer, and a first opposite electrode; and a second pixel in the second display area and comprising a second pixel electrode, a second intermediate layer, and a second opposite electrode, wherein each of the first intermediate layer and the second intermediate layer comprises a first section having a portion where a thickness thereof is constant and a second section where the thickness thereof is variable.

Display device, mask assembly, method of manufacturing the mask assembly, apparatus for manufacturing the display device, and method of manufacturing the display device

A mask assembly for manufacturing a display device, the mask assembly includes: a mask frame including a pair of first side portions arranged in a first direction, a pair of second side portions arranged in a second direction intersecting the first direction, and an opening portion defined by the first side portions and the second side portions; a mask sheet arranged on the opening portion of the mask frame, fixed on the mask frame, and including a plurality of openings; and a support member attached to at least one of the first side portions and the second side portions of the mask frame with tensile force applied.

Method for manufacturing display device using a mask frame

An organic light emitting device includes a base substrate having a pixel region and a non-pixel region, an organic light emitting element on the pixel region, and an auxiliary line in the non-pixel region. The organic light emitting element includes an anode, a first organic light emitting layer disposed on the anode, a first cathode, and a second cathode. The first cathode is on the first organic light emitting layer to be thereby electrically connected to the auxiliary line. The second cathode is on the first cathode to be thereby electrically connected to the first cathode. The first cathode may include a metal and the second cathode may include a transparent conductive oxide (TCO).

Organic light emitting display device and method for manufacturing same

A white organic light emitting diode including a first electrode; a second electrode facing the first electrode; a charge generation region between the first and second electrodes; a first emitting layer to emit light of a first color, the first emitting layer being between the first electrode and the charge generation region; and a second emitting layer to emit light of a second color, the second emitting layer being between the second electrode and the charge generation region, wherein the charge generation region includes a hole generation region to generate holes, an electron generation region to generate electrons, and a depletion prevention region to prevent a depletion region from being generated by the holes and the electrons, the depletion prevention region being between the hole generation region and the electron generation region.

White organic light emitting diode

An organic light emitting display (OLED) device includes: an insulating substrate; a first electrode on the insulating substrate; a second electrode on the first electrode; a light-emitting layer between the first electrode and the second electrode; a hole common layer between the first electrode and the light-emitting layer; an electron common layer between the second electrode and the light-emitting layer; and a scattering layer on the insulating substrate and having a non-planar surface, wherein the scattering layer includes at least one of benzene, naphthalene, anthracene, tetracene, pentacene, amine, benzidine, biphenyl, carbazole, pyridine, bipyridine, imidazole, phenanthroline, phenylborane, pyrimidine, or triazine, and the base material of the scattering layer includes a substituent including at least one of a benzoyl group, a carboxyl group, an aminophenoxyl group, a tricabonate group, or a styryl group.

Organic light emitting display device and fabricating method thereof

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Hwaseong-si, South Korea

Seil Kim