Patents by Inventor Jae Il SONG
Jae Il SONG has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 10741781Abstract: 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 generatiType: GrantFiled: August 7, 2019Date of Patent: August 11, 2020Assignee: LG DISPLAY CO., LTD.Inventors: Tae Sun Yoo, Hwa Kyung Kim, Hong Seok Choi, Jae Il Song, Mi Young Han, Shin Han Kim, Hye Min Oh
-
Publication number: 20190363274Abstract: 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 generatiType: ApplicationFiled: August 7, 2019Publication date: November 28, 2019Applicant: LG DISPLAY CO., LTD.Inventors: Tae Sun YOO, Hwa Kyung KIM, Hong Seok CHOI, Jae Il SONG, Mi Young HAN, Shin Han KIM, Hye Min OH
-
Patent number: 10418577Abstract: 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 generatiType: GrantFiled: June 19, 2018Date of Patent: September 17, 2019Assignee: LG DISPLAY CO., LTD.Inventors: Tae Sun Yoo, Hwa Kyung Kim, Hong Seok Choi, Jae Il Song, Mi Young Han, Shin Han Kim, Hye Min Oh
-
Patent number: 10249838Abstract: 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.Type: GrantFiled: June 8, 2017Date of Patent: April 2, 2019Assignee: LG Display Co., Ltd.Inventors: Jae Il Song, Dong Hyuk Kim, So Yeon Ahn
-
Publication number: 20180301652Abstract: 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 generatiType: ApplicationFiled: June 19, 2018Publication date: October 18, 2018Applicant: LG DISPLAY CO., LTD.Inventors: Tae Sun YOO, Hwa Kyung KIM, Hong Seok CHOI, Jae Il SONG, Mi Young HAN, Shin Han KIM, Hye Min OH
-
Patent number: 10026915Abstract: 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.Type: GrantFiled: November 23, 2015Date of Patent: July 17, 2018Assignee: LG DISPLAY CO., LTD.Inventors: Tae Sun Yoo, Hwa Kyung Kim, Hong Seok Choi, Jae Il Song, Mi Young Han, Shin Han Kim, Hye Min Oh
-
Patent number: 9799844Abstract: 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.Type: GrantFiled: June 18, 2014Date of Patent: October 24, 2017Assignee: LG DISPLAY CO., LTD.Inventors: Jae Il Song, Jeong Haeng Heo
-
Patent number: 9786862Abstract: An organic light emitting device including a first electrode connected to a thin film transistor formed on a substrate, a second electrode opposite to the first electrode, and an organic laminate formed between the first electrode and the second electrode and including a hole transport layer, a multilayer-light emitting structure, and an electron transport layer. The multilayer-light emitting structure includes at least two light emitting layers emitting light of different colors through recombination of electrons and holes injected through the first and second electrodes, and a charge transport control layer formed of a bipolar material transporting both electrons and holes at boundaries between the at least two light emitting layers and controlling the amount of charges transported between the at least two light emitting layers.Type: GrantFiled: August 22, 2014Date of Patent: October 10, 2017Assignee: LG DISPLAY., LTD.Inventors: Jae-Il Song, Seung-Ryong Joung, So-Yeon Ahn
-
Publication number: 20170279060Abstract: 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.Type: ApplicationFiled: June 8, 2017Publication date: September 28, 2017Inventors: Jae Il SONG, Dong Hyuk KIM, So Yeon AHN
-
Patent number: 9705101Abstract: 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.Type: GrantFiled: April 21, 2015Date of Patent: July 11, 2017Assignee: LG Display Co., Ltd.Inventors: Jae Il Song, Dong Hyuk Kim, So Yeon Ahn
-
Publication number: 20160079556Abstract: 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.Type: ApplicationFiled: November 23, 2015Publication date: March 17, 2016Applicant: LG Display Co., Ltd.Inventors: Tae Sun YOO, Hwa Kyung KIM, Hong Seok CHOI, Jae Il SONG, Mi Young HAN, Shin Han KIM, Hye Min OH
-
Patent number: 9224967Abstract: 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.Type: GrantFiled: December 17, 2013Date of Patent: December 29, 2015Assignee: LG DISPLAY CO., LTD.Inventors: Tae Sun Yoo, Hwa Kyung Kim, Hong Seok Choi, Jae Il Song, Mi Young Han, Shin Han Kim, Hye Min Oh
-
Publication number: 20150311462Abstract: 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.Type: ApplicationFiled: April 21, 2015Publication date: October 29, 2015Inventors: Jae Il Song, Dong Hyuk Kim, So Yeon Ahn
-
Publication number: 20150097167Abstract: An organic light emitting device including a first electrode connected to a thin film transistor formed on a substrate, a second electrode opposite to the first electrode, and an organic laminate formed between the first electrode and the second electrode and including a hole transport layer, a multilayer-light emitting structure, and an electron transport layer. The multilayer-light emitting structure includes at least two light emitting layers emitting light of different colors through recombination of electrons and holes injected through the first and second electrodes, and a charge transport control layer formed of a bipolar material transporting both electrons and holes at boundaries between the at least two light emitting layers and controlling the amount of charges transported between the at least two light emitting layers.Type: ApplicationFiled: August 22, 2014Publication date: April 9, 2015Inventors: Jae-Il SONG, Seung-Ryong JOUNG, So-Yeon AHN
-
Publication number: 20150097161Abstract: Disclosed is an organic light emitting device including a first electrode, a second electrode, and an organic laminate formed between the first and second electrodes. The organic laminate includes, a multilayer-light emitting structure that includes two or more light emitting layers emitting light of different colors and a charge transport control layer formed at boundaries between the two or more light emitting layers and controlling the amount of charges transported between the two or more light emitting layer. A first light emitting layer of the two or more light emitting layers is between a hole transport layer and the charge transport control layer and formed of a mixture including a first dopant and a host of a hole transport material. Both a hole transport layer and the charge transport control layer are formed of the same material as the host of the first light emitting layer.Type: ApplicationFiled: June 25, 2014Publication date: April 9, 2015Inventors: JAE-IL SONG, TAE-SUN YOO, DONG-HYUK KIM
-
Publication number: 20150060793Abstract: 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.Type: ApplicationFiled: June 18, 2014Publication date: March 5, 2015Inventors: JAE IL SONG, JEONG HAENG HEO
-
Publication number: 20140167016Abstract: 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.Type: ApplicationFiled: December 17, 2013Publication date: June 19, 2014Applicant: LG DISPLAY CO., LTD.Inventors: Tae Sun YOO, Hwa Kyung KIM, Hong Seok CHOI, Jae Il SONG, Mi Young HAN, Shin Han KIM, Hye Min OH