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公开(公告)号：US09653520B2
公开(公告)日：2017-05-16
申请号：US14725677
申请日：2015-05-29
Applicant: LG Display Co., Ltd.
Inventor： Ji-Min Kim , Do-Hyung Kim , Hye-Min Oh
CPC classification number: H01L27/3213 , F21V9/08 , H01L27/322 , H01L27/3248 , H01L27/3258 , H01L27/3262 , H01L51/5256 , H01L51/56 , H01L2227/323 , H01L2251/558
Abstract: An organic light emitting display panel with improved efficiency and lifespan and a method of manufacturing the same are disclosed. The organic light emitting display panel according to the present invention includes a substrate having red, green, blue, and white sub-pixel regions, red, green, and blue color filters respectively formed in the red, green, and blue sub-pixel regions, an overcoat layer that is formed in the red and green sub-pixel regions except for the blue and white sub-pixel regions or is formed in the sub-pixel regions such that a thickness of the overcoat layer in the red and green sub-pixel regions is greater than a thickness of the overcoat layer in the blue and white sub-pixel regions; and organic emitting cells respectively formed in the red, green, blue, and white sub-pixel regions.
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Patent Agency Ranking
公开(公告)号：US20140070196A1
公开(公告)日：2014-03-13
申请号：US14023670
申请日：2013-09-11
Applicant: LG Display Co., Ltd.
Inventor： Shin-Han Kim , Hwa-Kyung Kim , Hong-Seok Choi , Gwi-Jeong Cho , Youn-Seok Kam , Mi-Young Han , Hye-Min Oh , Tae-Shick Kim , Seong-Su Jeon , Chi-Yul Song
IPC: H01L51/50
CPC classification number: H01L51/5024 , H01L51/504 , H01L2251/5384
Abstract: Disclosed is an organic light emitting display device with an enhanced light emission efficiency at high current and an enhancement in panel efficiency through prevention of a roll-off phenomenon. The organic light emitting display device includes first and second electrodes formed on a substrate facing each other. A hole injection layer, a hole transport layer, at least first and second light emitting layers, and an electron transport layer are sequentially stacked between the first and second electrodes. The first light emitting layer includes different hosts while being doped with the same dopant in different dosages. The first light emitting layer includes a first host and a second host, and the second light emitting layer includes the first host and a third host different from the second host. The first and second light emitting layers are doped with the same phosphorescent yellow-phosphorescent green dopant in the same dosage.
Abstract translation: 公开了一种在高电流下具有增强的发光效率并通过防止滚降现象提高面板效率的有机发光显示装置。 有机发光显示装置包括形成在彼此面对的基板上的第一和第二电极。 空穴注入层，空穴传输层，至少第一和第二发光层以及电子传输层依次层叠在第一和第二电极之间。 第一发光层包括不同的主体，同时以不同的剂量掺杂相同的掺杂剂。 第一发光层包括第一主体和第二主体，第二发光层包括第一主机和与第二主机不同的第三主机。 第一和第二发光层以相同的剂量掺杂相同的磷光黄磷光绿色掺杂剂。
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公开(公告)号：US09786861B2
公开(公告)日：2017-10-10
申请号：US14465299
申请日：2014-08-21
Applicant: LG Display Co., Ltd.
Inventor： Shin-Han Kim , Hwa-Kyung Kim , Hong-Seok Choi , Mi-Young Han , Hye-Min Oh , Tae-Shick Kim , Seung-Hyun Kim
CPC classification number: H01L51/5044 , H01L27/3209
Abstract: Disclosed herein is a white organic light emitting device including various emission layers with improved luminous efficiency, an increased color viewing angle, and low power consumption. The white organic light emitting device includes at least two charge generation layers and at least three stacks between a first electrode and a second electrode. The first stack includes an emission layer having a wavelength range of about 440 to about 470 nm, the second stack includes an emission layer having a wavelength range of about 530 to about 570 nm, and the third stack includes an emission layer having a wavelength range of about 590 to about 620 nm and an emission layer having a wavelength range of about 440 to about 470 nm.
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公开(公告)号：US09425422B2
公开(公告)日：2016-08-23
申请号：US14023670
申请日：2013-09-11
Applicant: LG Display Co., Ltd.
Inventor： Shin-Han Kim , Hwa-Kyung Kim , Hong-Seok Choi , Gwi-Jeong Cho , Youn-Seok Kam , Mi-Young Han , Hye-Min Oh , Tae-Shick Kim , Seong-Su Jeon , Chi-Yul Song
CPC classification number: H01L51/5024 , H01L51/504 , H01L2251/5384
Abstract: Disclosed is an organic light emitting display device with an enhanced light emission efficiency at high current and an enhancement in panel efficiency through prevention of a roll-off phenomenon. The organic light emitting display device includes first and second electrodes formed on a substrate facing each other. A hole injection layer, a hole transport layer, at least first and second light emitting layers, and an electron transport layer are sequentially stacked between the first and second electrodes. The first light emitting layer includes different hosts while being doped with the same dopant in different dosages. The first light emitting layer includes a first host and a second host, and the second light emitting layer includes the first host and a third host different from the second host. The first and second light emitting layers are doped with the same phosphorescent yellow-phosphorescent green dopant in the same dosage.
Abstract translation: 公开了一种在高电流下具有增强的发光效率并通过防止滚降现象提高面板效率的有机发光显示装置。 有机发光显示装置包括形成在彼此面对的基板上的第一和第二电极。 空穴注入层，空穴传输层，至少第一和第二发光层以及电子传输层依次层叠在第一和第二电极之间。 第一发光层包括不同的主体，同时以不同的剂量掺杂相同的掺杂剂。 第一发光层包括第一主体和第二主体，第二发光层包括第一主机和与第二主机不同的第三主机。 第一和第二发光层以相同的剂量掺杂相同的磷光黄磷光绿色掺杂剂。
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公开(公告)号：US09062852B2
公开(公告)日：2015-06-23
申请号：US13677466
申请日：2012-11-15
Applicant: LG Display Co., Ltd.
Inventor： Ji-Min Kim , Do-Hyung Kim , Hye-Min Oh
CPC classification number: H01L27/3213 , F21V9/08 , H01L27/322 , H01L27/3248 , H01L27/3258 , H01L27/3262 , H01L51/5256 , H01L51/56 , H01L2227/323 , H01L2251/558
Abstract: An organic light emitting display panel with improved efficiency and lifespan and a method of manufacturing the same are disclosed. The organic light emitting display panel according to the present invention includes a substrate having red, green, blue, and white sub-pixel regions, red, green, and blue color filters respectively formed in the red, green, and blue sub-pixel regions, an overcoat layer that is formed in the red and green sub-pixel regions except for the blue and white sub-pixel regions or is formed in the sub-pixel regions such that a thickness of the overcoat layer in the red and green sub-pixel regions is greater than a thickness of the overcoat layer in the blue and white sub-pixel regions; and organic emitting cells respectively formed in the red, green, blue, and white sub-pixel regions.
Abstract translation: 公开了一种提高效率和寿命的有机发光显示面板及其制造方法。 根据本发明的有机发光显示面板包括具有分别形成在红色，绿色和蓝色子像素区域中的红，绿和蓝色子像素区域的红色，绿色和蓝色滤色器的基板， 形成在除了蓝色和白色子像素区域之外的红色和绿色子像素区域中的外涂层，或者形成在子像素区域中，使得红色和绿色子像素区域中的外涂层的厚度， 像素区域大于蓝色和白色子像素区域中的外涂层的厚度; 以及分别形成在红色，绿色，蓝色和白色子像素区域中的有机发光单元。
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公开(公告)号：US20130120981A1
公开(公告)日：2013-05-16
申请号：US13677466
申请日：2012-11-15
Applicant: LG Display Co., Ltd.
Inventor： Ji-Min Kim , Do-Hyung Kim , Hye-Min Oh
CPC classification number: H01L27/3213 , F21V9/08 , H01L27/322 , H01L27/3248 , H01L27/3258 , H01L27/3262 , H01L51/5256 , H01L51/56 , H01L2227/323 , H01L2251/558
Abstract: An organic light emitting display panel with improved efficiency and lifespan and a method of manufacturing the same are disclosed. The organic light emitting display panel according to the present invention includes a substrate having red, green, blue, and white sub-pixel regions, red, green, and blue color filters respectively formed in the red, green, and blue sub-pixel regions, an overcoat layer that is formed in the red and green sub-pixel regions except for the blue and white sub-pixel regions or is formed in the sub-pixel regions such that a thickness of the overcoat layer in the red and green sub-pixel regions is greater than a thickness of the overcoat layer in the blue and white sub-pixel regions; and organic emitting cells respectively formed in the red, green, blue, and white sub-pixel regions.
Abstract translation: 公开了一种提高效率和寿命的有机发光显示面板及其制造方法。 根据本发明的有机发光显示面板包括具有分别形成在红色，绿色和蓝色子像素区域中的红，绿和蓝色子像素区域的红色，绿色和蓝色滤色器的基板， 形成在除了蓝色和白色子像素区域之外的红色和绿色子像素区域中的外涂层，或者形成在子像素区域中，使得红色和绿色子像素区域中的外涂层的厚度， 像素区域大于蓝色和白色子像素区域中的外涂层的厚度; 以及分别形成在红色，绿色，蓝色和白色子像素区域中的有机发光单元。
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