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公开(公告)号：US10026915B2
公开(公告)日：2018-07-17
申请号：US14949184
申请日：2015-11-23
申请人： LG Display Co., Ltd.
发明人： Tae Sun Yoo , Hwa Kyung Kim , Hong Seok Choi , Jae Il Song , Mi Young Han , Shin Han Kim , Hye Min Oh
摘要： A white organic light emitting device can include first and second electrodes on a substrate; a first stack configured with a hole injection layer, a first hole transportation layer, a first light emission layer and a first electron transportation layer which are stacked on the first electrode; a second stack configured with a second hole transportation layer, a second light emission layer, a third light emission layer, and a second electron transportation layer which are stacked on the first stack; a third stack interposed between the second stack and the second electrode and configured with a third hole transportation layer, a fourth light emission layer, a third electron transportation layer and an electron injection layer which are stacked on the second stack; and charge generation layers interposed between the first and second stacks and between the second and third stacks and configured to adjust a charge balance between the stacks.
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公开(公告)号：US10249838B2
公开(公告)日：2019-04-02
申请号：US15618026
申请日：2017-06-08
申请人： LG Display Co., Ltd.
发明人： Jae Il Song , Dong Hyuk Kim , So Yeon Ahn
摘要： Disclosed is a white organic light emitting device in which a lifetime of a device is enhanced. The white organic light emitting device includes a first emission part between a first electrode and a second electrode, and a second emission part on the first emission part. At least one among the first and second emission parts includes an emission area control layer. The white organic light emitting device includes a first emission part between a first electrode and a second electrode, a second emission part on the first emission part, and a third emission part on the second emission part. At least one among the first to third emission parts includes an emission area control layer.
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公开(公告)号：US09799844B2
公开(公告)日：2017-10-24
申请号：US14308209
申请日：2014-06-18
申请人： LG DISPLAY CO., LTD.
发明人： Jae Il Song , Jeong Haeng Heo
IPC分类号： H01L51/50
CPC分类号： H01L51/5044 , H01L51/5004
摘要： An organic light emitting element is disclosed which includes: an anode and a cathode formed on a substrate and disposed to face each other; and a stack formed between the anode and the cathode and configured to include a hole transport layer, a first light emission layer, a second emission layer and an electron transport layer. The first light emission layer adjacent to the anode includes a host with band gaps of 1.00 eV˜2.70 eV and 2.76 eV˜4.00 eV. Such an organic light emitting element allows at least two light emission layers to be included into a single stack so that a driving voltage is reduced.
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公开(公告)号：US10741781B2
公开(公告)日：2020-08-11
申请号：US16534816
申请日：2019-08-07
申请人： LG DISPLAY CO., LTD.
发明人： Tae Sun Yoo , Hwa Kyung Kim , Hong Seok Choi , Jae Il Song , Mi Young Han , Shin Han Kim , Hye Min Oh
摘要： An organic light emitting device can include first and second electrodes formed to face each other on a substrate; a first stack interposed between the first and second electrode and configured with a hole injection layer, a first hole transportation layer, a first light emission layer and a first electron transportation layer which are stacked on the first electrode; a second stack interposed between the first stack and the second electrode and configured with a second hole transportation layer, a second light emission layer, a third light emission layer and a second electron transportation layer which are stacked on the first stack; a third stack interposed between the second stack and the second electrode and configured with a third hole transportation layer, a fourth light emission layer, a third electron transportation layer and an electron injection layer which are stacked on the second stack; and a first charge generation layer interposed between the first and second stacks and a second charge generation layer interposed between the second and third stacks.
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公开(公告)号：US10418577B2
公开(公告)日：2019-09-17
申请号：US16012267
申请日：2018-06-19
申请人： LG DISPLAY CO., LTD.
发明人： Tae Sun Yoo , Hwa Kyung Kim , Hong Seok Choi , Jae Il Song , Mi Young Han , Shin Han Kim , Hye Min Oh
摘要： An organic light emitting device can include first and second electrodes formed to face each other on a substrate; a first stack interposed between the first and second electrode and configured with a hole injection layer, a first hole transportation layer, a first light emission layer and a first electron transportation layer which are stacked on the first electrode; a second stack interposed between the first stack and the second electrode and configured with a second hole transportation layer, a second light emission layer, a third light emission layer and a second electron transportation layer which are stacked on the first stack; a third stack interposed between the second stack and the second electrode and configured with a third hole transportation layer, a fourth light emission layer, a third electron transportation layer and an electron injection layer which are stacked on the second stack; and a first charge generation layer interposed between the first and second stacks and a second charge generation layer interposed between the second and third stacks.
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公开(公告)号：US09705101B2
公开(公告)日：2017-07-11
申请号：US14692600
申请日：2015-04-21
申请人： LG Display Co., Ltd.
发明人： Jae Il Song , Dong Hyuk Kim , So Yeon Ahn
CPC分类号： H01L51/504 , H01L27/3209 , H01L27/3248 , H01L51/5044 , H01L51/5056 , H01L51/5072 , H01L2251/5384
摘要： Disclosed is a white organic light emitting device in which a lifetime of a device is enhanced. The white organic light emitting device includes a first emission part between a first electrode and a second electrode and a second emission part on the first emission part. At least one among the first and second emission parts includes an emission area control layer. The white organic light emitting device includes a first emission part between a first electrode and a second electrode, a second emission part on the first emission part, and a third emission part on the second emission part. At least one among the first to third emission parts includes an emission area control layer.
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公开(公告)号：US09224967B2
公开(公告)日：2015-12-29
申请号：US14109634
申请日：2013-12-17
申请人： LG DISPLAY CO., LTD.
发明人： Tae Sun Yoo , Hwa Kyung Kim , Hong Seok Choi , Jae Il Song , Mi Young Han , Shin Han Kim , Hye Min Oh
IPC分类号： H01L51/50
CPC分类号： H01L51/5028 , H01L27/3209 , H01L51/5016 , H01L51/504 , H01L51/5044 , H01L51/5056 , H01L51/5072 , H01L51/5088 , H01L51/5092 , H01L51/5206 , H01L51/5221 , H01L2251/5361 , H01L2251/5376 , H01L2251/5384 , H01L2251/558
摘要： A white organic light emitting device includes: first and second electrodes formed to face each other on a substrate; a first stack configured with a hole injection layer, a first hole transportation layer, a first light emission layer and a first electron transportation layer which are stacked between the first and second electrodes; a second stack configured with a second hole transportation layer, a second light emission layer, a third light emission layer, a second electron transportation layer and an electron injection layer which are stacked between the first stack and the second electrode; and a charge generation layer interposed between the first and second stacks and configured to adjust a charge balance between the two stacks.
摘要翻译： 白色有机发光器件包括：在基板上彼此面对形成的第一和第二电极; 配置有层叠在第一和第二电极之间的空穴注入层，第一空穴传输层，第一发光层和第一电子传输层的第一堆叠; 配置有第二空穴传输层，第二发光层，第三发光层，第二电子传输层和电子注入层的第二堆叠，堆叠在第一堆叠和第二电极之间; 以及插入在所述第一和第二堆叠之间并且被配置为调整所述两个堆叠之间的电荷平衡的电荷产生层。
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公开(公告)号：US20150311462A1
公开(公告)日：2015-10-29
申请号：US14692600
申请日：2015-04-21
申请人： LG Display Co., Ltd.
发明人： Jae Il Song , Dong Hyuk Kim , So Yeon Ahn
IPC分类号： H01L51/50
CPC分类号： H01L51/504 , H01L27/3209 , H01L27/3248 , H01L51/5044 , H01L51/5056 , H01L51/5072 , H01L2251/5384
摘要： Disclosed is a white organic light emitting device in which a lifetime of a device is enhanced. The white organic light emitting device includes a first emission part between a first electrode and a second electrode and a second emission part on the first emission part. At least one among the first and second emission parts includes an emission area control layer. The white organic light emitting device includes a first emission part between a first electrode and a second electrode, a second emission part on the first emission part, and a third emission part on the second emission part. At least one among the first to third emission parts includes an emission area control layer.
摘要翻译： 公开了一种增加了器件寿命的白色有机发光器件。 白色有机发光器件包括在第一电极和第二电极之间的第一发射部分和第一发射部分上的第二发射部分。 第一和第二发光部分中的至少一个包括发射区域控制层。 白色有机发光器件包括在第一电极和第二电极之间的第一发射部分，第一发射部分上的第二发射部分和第二发射部分上的第三发射部分。 第一至第三发射部分中的至少一个包括发射区域控制层。
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