Patents by Inventor Jianpu Wang
Jianpu Wang 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).
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Patent number: 11245076Abstract: It discloses a perovskite optoelectronic device which includes a substrate, electrode layers and functional layers. The electrode layer is deposited on the substrate, the functional layer is deposited between the electrode layers, and the functional layer at least includes a perovskite layer, wherein the perovskite layer is a perovskite material possessing a self-organized multiple quantum well structure. By adjusting material components, controllable adjustment of the structure of the multiple quantum wells and effective energy transfer between the multiple quantum wells can be implemented, and light emitting color may be near-ultraviolet light, visible light and near-infrared light; moreover, the problems of low coverage and poor stability of the existing perovskite films can be effectively solved.Type: GrantFiled: January 17, 2017Date of Patent: February 8, 2022Assignee: NANJING TECH UNIVERSITYInventors: Jianpu Wang, Nana Wang, Rui Ge, Wei Huang
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Patent number: 11158830Abstract: The disclosure discloses a perovskite film layer, a device and a preparation method for effectively improving the efficiency of perovskite optoelectronics. The perovskite film layer consists of a layer with discontinuous, irregularly distributed perovskite crystal grains and an organic insulating layer with a low refractive index embedded between the perovskite crystal grains. The perovskite crystal grains form a plurality of convex portions, and the organic insulating layer forms a plurality of concave portions between the convex portions. By adding an excess of an alkylammonium salt and/or an organic molecule with a specific functional group to perovskite precursor solution, a concave-convex film layer structure is spontaneously formed, and an upper charge transport layer and an electrode form pleated concave-convex structures.Type: GrantFiled: December 5, 2018Date of Patent: October 26, 2021Assignee: NANJING UNIVERSITY OF TECHNOLOGYInventors: Jianpu Wang, Nana Wang, Yu Cao, Wei Huang
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Publication number: 20210098731Abstract: The disclosure discloses a perovskite film layer, a device and a preparation method for effectively improving the efficiency of perovskite optoelectronics. The perovskite film layer consists of a layer with discontinuous, irregularly distributed perovskite crystal grains and an organic insulating layer with a low refractive index embedded between the perovskite crystal grains. The perovskite crystal grains form a plurality of convex portions, and the organic insulating layer forms a plurality of concave portions between the convex portions. By adding an excess of an alkylammonium salt and/or an organic molecule with a specific functional group to perovskite precursor solution, a concave-convex film layer structure is spontaneously formed, and an upper charge transport layer and an electrode form pleated concave-convex structures.Type: ApplicationFiled: December 5, 2018Publication date: April 1, 2021Inventors: Jianpu WANG, Nana WANG, Yu CAO, Wei HUANG
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Publication number: 20190036030Abstract: It discloses a perovskite optoelectronic device which includes a substrate, electrode layers and functional layers. The electrode layer is deposited on the substrate, the functional layer is deposited between the electrode layers, and the functional layer at least includes a perovskite layer, wherein the perovskite layer is a perovskite material possessing a self-organized multiple quantum well structure. By adjusting material components, controllable adjustment of the structure of the multiple quantum wells and effective energy transfer between the multiple quantum wells can be implemented, and light emitting color may be near-ultraviolet light, visible light and near-infrared light; moreover, the problems of low coverage and poor stability of the existing perovskite films can be effectively solved.Type: ApplicationFiled: January 17, 2017Publication date: January 31, 2019Inventors: Jianpu WANG,, Nana WANG,, Rui GE, Wei HUANG
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Patent number: 8853659Abstract: A switchable electronic device comprises a hole blocking layer and a layer comprising a conductive material between first and second electrodes, wherein the conductivity of the device may be irreversibly switched upon application of a current having a current density of less than or equal to 100 A cm?2 to a conductivity at least 100 times lower than the conductivity of the device before switching. The conductive material is a doped organic material such as doped optionally substituted poly(ethylene dioxythiophene).Type: GrantFiled: May 4, 2010Date of Patent: October 7, 2014Assignee: Cambridge Display Technology LimitedInventors: Neil Greenham, Jianpu Wang
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Publication number: 20120068140Abstract: A switchable electronic device comprises a hole blocking layer and a layer comprising a conductive material between first and second electrodes, wherein the conductivity of the device may be irreversibly switched upon application of a current having a current density of less than or equal to 100 A cm?2 to a conductivity at least 100 times lower than the conductivity of the device before switching. The conductive material is a doped organic material such as doped optionally substituted poly(ethylene dioxythiophene).Type: ApplicationFiled: May 4, 2010Publication date: March 22, 2012Applicant: CAMBRIDGE DISPLAY TECHNOLOGY LIMITEDInventors: Neil Greenham, Jianpu Wang
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Patent number: 8030842Abstract: A display device with increased lifespan is presented. The device includes a plurality of thin film transistors, a passivation layer formed on the thin film transistors, a plurality of pixel electrodes formed on the passivation layer and electrically connected to the thin film transistors, and a wall dividing the pixel electrodes. The wall has a main section and an auxiliary section that is lower than the main section. A caved-in section is disposed between the main section and the auxiliary section. An organic layer is formed on the pixel electrodes.Type: GrantFiled: April 15, 2009Date of Patent: October 4, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Jianpu Wang, Joon-chul Goh, Dong-won Lee, Jung-soo Rhee, Song-mi Hong
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Patent number: 7764013Abstract: The invention provides a display apparatus comprising: a plurality of thin film transistors; a protective film formed on the thin film transistor; a plurality of pixel electrodes formed on the protective film and electrically connected with the thin film transistors; a partition wall layer partitioning the pixel electrodes adjacent to each other, the partition wall layer including a main exposure portion exposing the pixel electrode and a sub-exposure portion protruded and extended from the main exposure portion whereby the problem of non-uniform coating of ink in the corners of pixel electrodes is overcome.Type: GrantFiled: June 29, 2006Date of Patent: July 27, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Dong-won Lee, Jung-soo Rhee, Jin-koo Chung, Jianpu Wang, Song-mi Hong
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Patent number: 7732857Abstract: A TFT substrate with reduced pixel defect rate is presented. The TFT substrate includes a pixel electrode, a negative line to apply a reverse voltage to the pixel electrode, and a recovery transistor including a drain electrode overlapping a part of the negative line with a insulating layer disposed between the negative line and the drain electrode. A contact hole is formed on the negative line and the drain electrode, and a bridge electrode connects the negative line and the drain electrode through the contact hole. The thin film transistor substrate and a display apparatus presented herein protect a data line assembly metal layer and decrease pixel defect. An improved reverse voltage efficiency is applied to a pixel electrode to protect a drain electrode.Type: GrantFiled: November 21, 2008Date of Patent: June 8, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Song-mi Hong, Jung-soo Rhee, Beohm-rock Choi, Jin-koo Chung, Jianpu Wang, Dong-won Lee
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Patent number: 7642712Abstract: A display device including a substrate, a first electrode formed over the substrate, and a partition member having a first aperture is provided. The display device further includes an emitting control layer covering a portion of the first aperture, thereby providing a second aperture to expose a portion of the first electrode, wherein the second aperture has a quadrangular shape with chamfered corners which help disperse organic material uniformly. Advantageously, the emitting control layer is formed of a material having an affinity to an organic material forming an organic light emitting layer within the second aperture, thereby helping to disperse the organic material uniformly and improve brightness uniformity.Type: GrantFiled: December 2, 2005Date of Patent: January 5, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Dong-Won Lee, Jianpu Wang, Jung-Soo Rhee, Jin-Koo Chung, Song-Mi Hong, Beohm-Rock Choi
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Publication number: 20090256474Abstract: A display device with increased lifespan is presented. The device includes a plurality of thin film transistors, a passivation layer formed on the thin film transistors, a plurality of pixel electrodes formed on the passivation layer and electrically connected to the thin film transistors, and a wall dividing the pixel electrodes. The wall has a main section and an auxiliary section that is lower than the main section. A caved-in section is disposed between the main section and the auxiliary section. An organic layer is formed on the pixel electrodes.Type: ApplicationFiled: April 15, 2009Publication date: October 15, 2009Inventors: Jianpu Wang, Joon-chul Goh, Dong-won Lee, Jung-soo Rhee, Song-mi Hong
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Patent number: 7528543Abstract: A display device with increased lifespan is presented. The device includes a plurality of thin film transistors, a passivation layer formed on the thin film transistors, a plurality of pixel electrodes formed on the passivation layer and electrically connected to the thin film transistors, and a wall dividing the pixel electrodes. The wall has a main section and an auxiliary section that is lower than the main section. A caved-in section is disposed between the main section and the auxiliary section. An organic layer is formed on the pixel electrodes.Type: GrantFiled: August 11, 2006Date of Patent: May 5, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Jianpu Wang, Joon-chul Goh, Dong-won Lee, Jung-soo Rhee, Song-mi Hong
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Publication number: 20090101917Abstract: A TFT substrate with reduced pixel defect rate is presented. The TFT substrate includes a pixel electrode, a negative line to apply a reverse voltage to the pixel electrode, and a recovery transistor including a drain electrode overlapping a part of the negative line with a insulating layer disposed between the negative line and the drain electrode. A contact hole is formed on the negative line and the drain electrode, and a bridge electrode connects the negative line and the drain electrode through the contact hole. The thin film transistor substrate and a display apparatus presented herein protect a data line assembly metal layer and decrease pixel defect. An improved reverse voltage efficiency is applied to a pixel electrode to protect a drain electrode.Type: ApplicationFiled: November 21, 2008Publication date: April 23, 2009Inventors: Song-mi HONG, Jung-soo Rhee, Beohm-rock Choi, Jin-koo Chung, Jianpu Wang, Dong-won Lee
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Patent number: 7470950Abstract: A TFT substrate with reduced pixel defect rate is presented. The TFT substrate includes a pixel electrode, a negative line to apply a reverse voltage to the pixel electrode, and a recovery transistor including a drain electrode overlapping a part of the negative line with a insulating layer disposed between the negative line and the drain electrode. A contact hole is formed on the negative line and the drain electrode, and a bridge electrode connects the negative line and the drain electrode through the contact hole. The thin film transistor substrate and a display apparatus presented herein protect a data line assembly metal layer and decrease pixel defect. An improved reverse voltage efficiency is applied to a pixel electrode to protect a drain electrode.Type: GrantFiled: April 11, 2006Date of Patent: December 30, 2008Assignee: Samsung Electronics Co., Ltd.Inventors: Song-mi Hong, Jung-soo Rhee, Beohm-rock Choi, Jin-koo Chung, Jianpu Wang, Dong-won Lee
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Publication number: 20080252200Abstract: A display device with increased lifespan is presented. The device includes a plurality of thin film transistors, a passivation layer formed on the thin film transistors, a plurality of pixel electrodes formed on the passivation layer and electrically connected to the thin film transistors, and a wall dividing the pixel electrodes. The wall has a main section and an auxiliary section that is lower than the main section. A caved-in section is disposed between the main section and the auxiliary section. An organic layer is formed on the pixel electrodes.Type: ApplicationFiled: August 11, 2006Publication date: October 16, 2008Inventors: Jianpu Wang, Joon-chul Goh, Dong-won Lee, Jung-soo Rhee, Song-mi Hong
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Patent number: 7301168Abstract: An organic light emitting display according to an embodiment of the invention includes: a substrate; a first electrode disposed on the substrate; a first partition disposed on the first electrode and having an opening exposing the first electrode; a second partition that is disposed on the first partition, wider than the first partition, defines an emission area, and includes photosensitive organic material; an emission layer disposed in the emission area; and a second electrode disposed on the emission layer.Type: GrantFiled: October 3, 2005Date of Patent: November 27, 2007Assignee: Samsung Electronics Co., Ltd.Inventors: Jung-Soo Rhee, Jianpu Wang, Song-Mi Hong, Dong-Won Lee, Jin-Koo Chung
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Publication number: 20070035242Abstract: The invention provides a display apparatus comprising: a plurality of thin film transistors; a protective film formed on the thin film transistor; a plurality of pixel electrodes formed on the protective film and electrically connected with the thin film transistors; a partition wall layer partitioning the pixel electrodes adjacent to each other, the partition wall layer including a main exposure portion exposing the pixel electrode and a sub-exposure portion protruded and extended from the main exposure portion whereby the problem of non-uniform coating of ink in the corners of pixel electrodes is overcome.Type: ApplicationFiled: June 29, 2006Publication date: February 15, 2007Inventors: Dong-won Lee, Jung-soo Rhee, Jin-koo Chung, Jianpu Wang, Song-mi Hong
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Publication number: 20060274012Abstract: A TFT substrate with reduced pixel defect rate is presented. The TFT substrate includes a pixel electrode, a negative line to apply a reverse voltage to the pixel electrode, and a recovery transistor including a drain electrode overlapping a part of the negative line with a insulating layer disposed between the negative line and the drain electrode. A contact hole is formed on the negative line and the drain electrode, and a bridge electrode connects the negative line and the drain electrode through the contact hole. The thin film transistor substrate and a display apparatus presented herein protect a data line assembly metal layer and decrease pixel defect. An improved reverse voltage efficiency is applied to a pixel electrode to protect a drain electrode.Type: ApplicationFiled: April 11, 2006Publication date: December 7, 2006Inventors: Song-mi Hong, Jung-soo Rhee, Beohm-rock Choi, Jin-koo Chung, Jianpu Wang, Dong-won Lee
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Publication number: 20060226771Abstract: A display device including a substrate, a first electrode formed over the substrate, and a partition member having a first aperture is provided. The display device further includes an emitting control layer covering a portion of the first aperture, thereby providing a second aperture to expose a portion of the first electrode, wherein the second aperture has a quadrangular shape with chamfered corners which help disperse organic material uniformly. Advantageously, the emitting control layer is formed of a material having an affinity to an organic material forming an organic light emitting layer within the second aperture, thereby helping to disperse the organic material uniformly and improve brightness uniformity.Type: ApplicationFiled: December 2, 2005Publication date: October 12, 2006Applicant: Samsung Electronics Co., Ltd.Inventors: Dong-Won Lee, Jianpu Wang, Jung-Soo Rhee, Jin-Koo Chung, Song-Mi Hong, Beohm-Rock Choi
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Patent number: D989892Type: GrantFiled: February 2, 2021Date of Patent: June 20, 2023Inventor: Jianpu Wang