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公开(公告)号:US20230113852A1
公开(公告)日:2023-04-13
申请号:US17722378
申请日:2022-04-17
Applicant: Samsung Display Co., Ltd.
Inventor: Jongwon LEE , Seungcheol Kim , Heungsu Park , Changmin Lee , Hyunshik Lee
Abstract: A light-emitting device including: m emitting units located between a first electrode and a second electrode; and m−1 charge generation units, each located between two neighboring emitting units among the m emitting units and including an n-type charge generation layer and a p-type charge generation layer. The m emitting units may each include an emission layer, at least one of the m emission layers comprises a first emission layer and a second emission layer that are in contact with each other, the first emission layer includes a first host, a second host, and a first dopant, the second emission layer includes a third host, a fourth host, and a second dopant, the first host and the second host form a first exciplex, the third host and the fourth host form a second exciplex, and the first dopant is a delayed fluorescence dopant, and the second dopant is a phosphorescent dopant.
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公开(公告)号:US20220115619A1
公开(公告)日:2022-04-14
申请号:US17343549
申请日:2021-06-09
Applicant: Samsung Display Co., Ltd.
Inventor: Jongwon LEE , Namsu KANG , Minkyung KIM , Minho PARK , Huiju PARK , Dongkyu LEE , Hyunshik LEE
Abstract: A light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an interlayer between the first electrode and the second electrode and including an emission layer stack, wherein the emission layer stack includes: a first emission layer including a first host and a first dopant; and a second emission layer including a second host, a second dopant, and an electron transport compound, wherein the first host and the second host are different compounds from each other, the first emission layer is in contact with the second emission layer, and the second emission layer is closer to the second electrode than the first emission layer.
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公开(公告)号:US20210359214A1
公开(公告)日:2021-11-18
申请号:US17239405
申请日:2021-04-23
Applicant: Samsung Display Co., Ltd.
Inventor: Namsu KANG , Jin KIM , Jongwon LEE , Hyunshik LEE , Jaehoon HWANG
IPC: H01L51/00
Abstract: An organic light-emitting device includes: a first electrode; a second electrode; m emission units; and m−1 charge generation layer(s), each including an n-type charge generation layer and a p-type charge generation layer and being located between two emission units. The m emission units each include a hole transport region, an electron transport region, and an emission layer between the hole transport region and the electron transport region. An mth electron region included in an mth emission layer that is closest among the m emission units to the second electrode includes an mth electron transport layer. The mth electron transport layer is a single layer consisting of a first compound, the mth emission layer included in the mth emission unit includes a second compound, and the mth electron transport layer and the mth emission layer may be different from each other.
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公开(公告)号:US20220069248A1
公开(公告)日:2022-03-03
申请号:US17307750
申请日:2021-05-04
Applicant: Samsung Display Co., Ltd.
Inventor: Namsu KANG , Minho PARK , Minkyung KIM , Huiju PARK , Dongkyu LEE , Jongwon LEE , Hyunshik LEE
Abstract: Provided is a light-emitting device including: a first electrode; a second electrode facing the first electrode; and an interlayer between the first electrode and the second electrode and including an emission layer, wherein the interlayer includes a hole injection layer and an electron transport layer, the hole injection layer includes a first electron transport compound, and a hole mobility (MH) and electron mobility (ME) of the first electron transport compound satisfy following Equation (1): Equation (1) MH≤ME×0.95 (1).
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公开(公告)号:US20220059767A1
公开(公告)日:2022-02-24
申请号:US17391613
申请日:2021-08-02
Applicant: Samsung Display Co., Ltd.
Inventor: Namsu KANG , Minkyung KIM , Minho PARK , Huiju PARK , Dongkyu LEE , Jongwon LEE , Hyunshik LEE
IPC: H01L51/00
Abstract: A light-emitting device includes a first electrode, a second electrode facing the first electrode, and an interlayer disposed between the first electrode and the second electrode. The emission layer includes a first emission layer and a second emission layer. The first emission layer includes a first compound, and the second emission layer includes a second compound. The first compound includes at least one deuterium (D), and the second compound does not include deuterium. An electronic apparatus including the light-emitting device is also provided.
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公开(公告)号:US20190392741A1
公开(公告)日:2019-12-26
申请号:US16391802
申请日:2019-04-23
Applicant: Samsung Display Co., Ltd.
Inventor: Daeyoun CHO , Sangkil KIM , Hyunho KIM , Young-joo NOH , Jongwoo PARK , Jongwon LEE , Juhee LEE , Youngtae CHOI
IPC: G09G3/00 , G09G3/3225
Abstract: A lighting test device for a display panel includes: a connection part including a first connection test pad, a second connection test pad and a plurality of test pads, which are arranged at an end of the connection part, where the connection part is allowed to be connected to the display panel through the first connection test pad, the second connection test pad and the test pads; and a test circuit which outputs a connection test signal to the first connection test pad, receives a feedback signal through the second connection test pad, and adjusts voltage levels of test signals to be applied to the test pads based on the connection test signal and the feedback signal.
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公开(公告)号:US20150212634A1
公开(公告)日:2015-07-30
申请号:US14464812
申请日:2014-08-21
Applicant: Samsung Display Co., Ltd.
Inventor: Jaejin PYUN , Jongwon LEE , Byoungwon CHOI , Seungho NAM , Seongmo HWANG
CPC classification number: G06F3/0412 , G06F3/03545 , G06F3/0416 , G06F3/046 , G06F2203/04103 , G09G3/3677 , G09G2300/0426 , G09G2354/00 , H01L27/1259
Abstract: A display apparatus includes a first display substrate, a second display substrate, pixels, a scan line, a sensing line, a first driver, a second driver, and a coordinate calculator. The pixels include pixel rows and pixel columns. The scan line surrounds at least one pixel row of the pixel rows. The sensing line is insulated from the scan line and surrounds at least one pixel column of the pixel columns. The first driver applies a scan signal to the scan line and the second driver outputs a sensing signal provided from the sensing line. The coordinate calculator receives the sensing signal to calculate coordinate information. Each of the scan line and the sensing line is disposed on different layers from each other.
Abstract translation: 显示装置包括第一显示基板,第二显示基板,像素,扫描线,感测线,第一驱动器,第二驱动器和坐标计算器。 像素包括像素行和像素列。 扫描线围绕像素行的至少一个像素行。 感测线与扫描线绝缘并且围绕像素列的至少一个像素列。 第一驱动器将扫描信号施加到扫描线,并且第二驱动器输出从感测线提供的感测信号。 坐标计算器接收感测信号以计算坐标信息。 扫描线和感测线中的每一条被设置在彼此不同的层上。
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公开(公告)号:US20210408387A1
公开(公告)日:2021-12-30
申请号:US17351073
申请日:2021-06-17
Applicant: Samsung Display Co., Ltd.
Inventor: Namsu KANG , Minho PARK , Dongkyu LEE , Jongwon LEE , Hyunshik LEE
IPC: H01L51/00
Abstract: A light-emitting device includes: a first electrode; a second electrode; m emission units between the first electrode and the second electrode; and m−1 charge generation layer(s), each located between two adjacent emission units, and including m−1 n-type charge generation layer(s) and m−1 p-type charge generation layer(s). The m emission units each include a hole transport region, an emission layer, and an electron transport region. A first hole transport region in a first emission unit closest to the first electrode may include a hole transfer layer and a hole injection layer and/or a hole transport layer. The hole transfer layer may be a single layer consisting of an electron-transporting compound including a phosphine oxide group (P═O), a phosphine sulfide group (P═S), a π electron-deficient nitrogen-containing C1-C60 cyclic group, or any combination thereof. A highest occupied molecular orbital (HOMO) energy level of the hole transfer layer may be about −6.0 eV to about −5.3 eV.
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公开(公告)号:US20190172885A1
公开(公告)日:2019-06-06
申请号:US16006235
申请日:2018-06-12
Applicant: Samsung Display Co., Ltd.
Inventor: Jongwon LEE , Jongwoo PARK , Donggi AHN
Abstract: An organic light emitting display device may include a substrate including a display area and a non-display area; a thin film transistor on the substrate in the display area; a planarization layer covering the thin film transistor; a first electrode on the planarization layer in the display area and connected to the thin film transistor; a pixel defining layer covering the first electrode and including a first opening that exposes a portion of the first electrode to define an emission area; a first light blocking layer on the pixel defining layer and including a photochromic material, a color of the first light blocking layer being reversibly changed by ultraviolet light; an organic light emitting layer on the first electrode; and a second electrode on the organic light emitting layer.
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公开(公告)号:US20230116749A1
公开(公告)日:2023-04-13
申请号:US17988899
申请日:2022-11-17
Applicant: Samsung Display Co., Ltd.
Inventor: Namsu KANG , Minkyung KIM , Minho PARK , Huiju PARK , Dongkyu LEE , Jongwon LEE , Hyunshik LEE
IPC: H01L51/00
Abstract: A light-emitting device includes a first electrode, a second electrode facing the first electrode, and an interlayer disposed between the first electrode and the second electrode. The emission layer includes a first emission layer and a second emission layer. The first emission layer includes a first compound, and the second emission layer includes a second compound. The first compound includes at least one deuterium (D), and the second compound does not include deuterium. An electronic apparatus including the light-emitting device is also provided.
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