Patents by Inventor Jwo-Huei Jou

Jwo-Huei Jou 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).

  • Publication number: 20190115397
    Abstract: The present invention mainly discloses a high-efficiency OLED device, comprising: an anode substrate, a hole transport layer (HTL), at least one emission layer (EML), an electron transport layer (ELT), and a cathode layer. In this high-efficiency OLED, LUMO level of the HTL, LUMO level of the EML and LUMO level of the ETL together form a step-like LUMO level, and HOMO level of the HTL, HOMO level of the EML and HOMO level of the ETL also constitute one step-like HOMO level. On the other hand, the electron mobility of the ETL is greater than the EML's electron mobility by at least 2 orders in this high-efficiency OLED. Moreover, a variety of experimental data have proved that, a specific OLED would certainly exhibits outstanding luminance performance as long as the specific OLED is made based on the above-mentioned physical characteristics limitations for the ETL, the EML and the HTL.
    Type: Application
    Filed: December 18, 2017
    Publication date: April 18, 2019
    Inventor: JWO-HUEI JOU
  • Patent number: 9887357
    Abstract: The primary objective of the present invention is to provide a method for manufacturing organic layers of organic light-emitting device by using deposition machine, which mainly uses the way of premixing organic materials to dissolving and mixing multi kinds of organic materials; moreover, after completing the vacuum drying process to the mixed organic materials, the method is then proceeded for depositing the mixed organic materials on a substrate in single vapor deposition process; after then, the method is proceeded for ended the deposition process to the material carrier and repeatedly operating deposition process to another material container, so as to produce multi-layers structure on the substrate; wherein method proposed by the present invention can replace the conventional manufacturing process and can avoid the disadvantages thereof.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: February 6, 2018
    Assignee: National Tsing Hua University
    Inventors: Jwo-Huei Jou, Tsung-Han Li, Saulius Grigalevi{hacek over (c)}ius, Gintare Kru{hacek over (c)}aite
  • Patent number: 9803811
    Abstract: The present invention provides a method for producing high-quality light, wherein this high-quality light producing method consists of a plurality of particularly-designed process steps based on the sensitivity of human eyes and the melatonin suppression. So that, research and development engineers of lighting devices are able to manufacture a high-quality lighting unit or module through this novel method. Moreover, a variety of experimental data have proved that, the high-quality lighting unit produced by using this novel method is able to perform the advantages of high SRI (Spectrum Resemblance Index) and low MLT (Melatonin) suppression rate.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: October 31, 2017
    Assignee: National Tsing Hua University
    Inventors: Jwo-Huei Jou, Zhe-Kai He
  • Patent number: 9755154
    Abstract: The present invention provides a series of spirally configured cis-stilbene/fluorene hybrid materials, which are spirally-configured cis-stilbene/fluorene derivatives having glass transition temperatures ranged from 105° C. to 130° C., decomposition temperatures ranged from 385° C. to 415° C., reversible electron transport property, and balanced charges motilities. Moreover, a variety of experimental data have proved that the yellow fluorescent, the green phosphorescent, the yellow phosphorescent, and the red phosphorescent OLEDs using this spirally configured cis-stilbene/fluorene derivatives as the electron transport layers having hole blocking functions can indeed show excellent EQE, current efficiency, power efficiency, maximum luminance, and device lifetime performances much better than the conventional or commercial yellow fluorescent, green phosphorescent, yellow phosphorescent, and red phosphorescent OLEDs.
    Type: Grant
    Filed: December 27, 2014
    Date of Patent: September 5, 2017
    Assignee: Nichem Fine Technology Co., Ltd.
    Inventors: Chien-Tien Chen, Jwo-Huei Jou
  • Publication number: 20170213962
    Abstract: The primary objective of the present invention is to provide a method for manufacturing an organic element, which majorly uses the way of premixing organic materials to dissolving and mixing multi kinds of organic materials; moreover, after completing the vacuum drying process to the mixed organic materials, the method is then proceeded for depositing the mixed organic materials on a substrate in single vapor deposition process; after then, the method is proceeded for ended the deposition process to the material carrier and repeatedly operating deposition process to another deposition material carrier, so as to produce multi-layers structure on the substrate; wherein method proposed by the present invention can replace the conventional manufacturing process and can avoid the disadvantages thereof.
    Type: Application
    Filed: January 18, 2017
    Publication date: July 27, 2017
    Inventors: JWO-HUEI JOU, TSUNG-HAN LI, SAULIUS GRIGALEVICIUS, GINTARE KRUCAITE
  • Publication number: 20170211755
    Abstract: The present invention provides a method for producing high-quality light, wherein this high-quality light producing method consists of a plurality of particularly-designed process steps based on the sensitivity of human eyes and the melatonin suppression. So that, research and development engineers of lighting devices are able to manufacture a high-quality lighting unit or module through this novel method. Moreover, a variety of experimental data have proved that, the high-quality lighting unit produced by using this novel method is able to perform the advantages of high SRI (Spectrum Resemblance Index) and low MLT (Melatonin) suppression rate.
    Type: Application
    Filed: March 31, 2016
    Publication date: July 27, 2017
    Inventors: JWO-HUEI JOU, ZHE-KAI HE
  • Patent number: 9419227
    Abstract: An OLED (organic light emitting diode) comprises a series of spirally configured cis-stilbene/fluorene hybrid materials. The spirally configured cis-stilbene/fluorene hybrid materials are spirally-configured cis-stilbene/fluorene derivatives having the functions to block holes and constructed by at least one cis-Stilbene based component and at least one fluorene based component.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: August 16, 2016
    Assignee: NICHEM FINE TECHNOLOGY CO., LTD.
    Inventors: Chien-Tien Chen, Jwo-Huei Jou
  • Patent number: 9346756
    Abstract: The present invention demonstrates a newly designed and synthesized carbazole scaffold based electro-fluorescent emitter, 9-butyl-2,7-(2-(4-methoxyphenyl)ethynyl)-9H-carbazole (Cz(APhOMe)2), for ultra-violet OLED. This novel emitter has showed a high quantum yield of ˜78%. By doping in a host light-emitting layer of an OLED, the Cz(APhOMe)2 guest light-emitting material shows a UV light belong to the near-UV region with high external quantum efficiency. Most importantly, a variety of experiment results have proved that this UV light is a pure UV light having only one peak wavelength in the emission spectrum thereof. Ascertainably, this pure UV light can be applied in numerous applications, such as biological sensors chemical sensors, leakage detection in automobiles, crack detection in airplanes, high density information storage devices, water treatment for germicidal protection, forensic investigations, sanitation and sterilization, laboratory researches, food industries, and fraud detection.
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: May 24, 2016
    Assignee: National Tsing Hua University
    Inventors: Jwo-Huei Jou, Sudhir Kumar, Justin Thomas Koil Pitchai Rajapandian
  • Publication number: 20160115127
    Abstract: The present invention demonstrates a newly designed and synthesized carbazole scaffold based electro-fluorescent emitter, 9-butyl-2,7-(2-(4-methoxyphenyl)ethynyl)-9H-carbazole (Cz(APhOMe)2), for ultra-violet OLED. This novel emitter has showed a high quantum yield of ˜78%. By doping in a host light-emitting layer of an OLED, the Cz(APhOMe)2 guest light-emitting material shows a UV light belong to the near-UV region with high external quantum efficiency. Most importantly, a variety of experiment results have proved that this UV light is a pure UV light having only one peak wavelength in the emission spectrum thereof. Ascertainably, this pure UV light can be applied in numerous applications, such as biological sensors chemical sensors, leakage detection in automobiles, crack detection in airplanes, high density information storage devices, water treatment for germicidal protection, forensic investigations, sanitation and sterilization, laboratory researches, food industries, and fraud detection.
    Type: Application
    Filed: October 24, 2014
    Publication date: April 28, 2016
    Inventors: Jwo-Huei Jou, Sudhir Kumar, Justin Thomas Koil Pitchai Rajapandian
  • Publication number: 20160111648
    Abstract: The present invention provides a series of spirally configured cis-stilbene/fluorene hybrid materials, which are spirally-configured cis-stilbene/fluorene derivatives having glass transition temperatures ranged from 105° C. to 130° C., decomposition temperatures ranged from 385° C. to 415° C., reversible electron transport property, and balanced charges motilities. Moreover, a variety of experimental data have proved that the yellow fluorescent, the green phosphorescent, the yellow phosphorescent, and the red phosphorescent OLEDs using this spirally configured cis-stilbene/fluorene derivatives as the electron transport layers having hole blocking functions can indeed show excellent EQE, current efficiency, power efficiency, maximum luminance, and device lifetime performances much better than the conventional or commercial yellow fluorescent, green phosphorescent, yellow phosphorescent, and red phosphorescent OLEDs.
    Type: Application
    Filed: December 27, 2014
    Publication date: April 21, 2016
    Inventors: Chien-Tien Chen, Jwo-Huei Jou
  • Publication number: 20160111649
    Abstract: An OLED (organic light emitting diode) comprises a series of spirally configured cis-stilbene/fluorene hybrid materials. The spirally configured cis-stilbene/fluorene hybrid materials are spirally-configured cis-stilbene/fluorene derivatives having the functions to block holes and constructed by at least one cis-Stilbene based component and at least one fluorene based component.
    Type: Application
    Filed: November 30, 2015
    Publication date: April 21, 2016
    Inventors: Chien-Tien CHEN, Jwo-Huei JOU
  • Patent number: 9287508
    Abstract: The present invention provides a novel light-emitting material, which is a blue fluorescent material performs a high quantum yield of ˜86%, and can be doped into a host light-emitting layer of an organic light emitting diode (OLED) for being a guest light-emitting material, so as to increase the external quantum efficiency, the power efficiency and the current efficiency of the OLED. Most importantly, a variety of experiment results have proved that the OLED having the novel light-emitting material can emit a deep blue light with CIE coordinates of (0.156, 0.055). Moreover, the experiment results also proved that the novel light-emitting material can be applied in fabricating OLED through dry process and/or wet process; so that, the novel light-emitting material is helpful to the low-cost mass production of OLEDs.
    Type: Grant
    Filed: October 12, 2014
    Date of Patent: March 15, 2016
    Assignee: National Tsing Hua University
    Inventors: Jwo-Huei Jou, Sudhir Kumar, Justin Thomas Koil Pitchai Rajapandian
  • Publication number: 20160056385
    Abstract: The present invention provides a novel light-emitting material, which is a blue fluorescent material performs a high quantum yield of ˜86%, and can be doped into a host light-emitting layer of an organic light emitting diode (OLED) for being a guest light-emitting material, so as to increase the external quantum efficiency, the power efficiency and the current efficiency of the OLED. Most importantly, a variety of experiment results have proved that the OLED having the novel light-emitting material can emit a deep blue light with CIE coordinates of (0.156, 0.055). Moreover, the experiment results also proved that the novel light-emitting material can be applied in fabricating OLED through dry process and/or wet process; so that, the novel light-emitting material is helpful to the low-cost mass production of OLEDs.
    Type: Application
    Filed: October 12, 2014
    Publication date: February 25, 2016
    Inventors: Jwo-Huei Jou, Sudhir Kumar, Justin Thomas Koil Pitchai Rajapandian
  • Patent number: 9266833
    Abstract: The present invention provides a carrier transport material formed by completing a reaction process of at least one aromatic compound and at least one polycyclic aromatic hydrocarbons (PAHs), wherein a cross linking reaction can be activated in the molecular compound through heating or ultraviolet irradiation because the molecular compound has at least one cross-linkable functional group. Therefore, when the carrier transport material is applied in an OLED, the carrier transport material would not be dissolved by the solvent included in the next coated material because the carrier transport material has been cured after the cross linking reaction is carried out. Moreover, because the carrier transport material would simultaneously perform an electron confining functionality when being used as a hole transport layer, the device efficiency of the OLED having the carrier transport material is obviously enhanced during the high-brightness operation especially.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: February 23, 2016
    Assignee: National Tsing Hua University
    Inventors: Jwo-Huei Jou, Tsung-Han Li, Saulius Grigalevi{hacek over (c)}ius, Gintarė Kru{hacek over (c)}aitė
  • Publication number: 20160028013
    Abstract: The present invention provides a carrier transport material formed by completing a reaction process of at least one aromatic compound and at least one polycyclic aromatic hydrocarbons (PAHs), wherein a cross linking reaction can be activated in the molecular compound through heating or ultraviolet irradiation because the molecular compound has at least one cross-linkable functional group. Therefore, when the carrier transport material is applied in an OLED, the carrier transport material would not be dissolved by the solvent included in the next coated material because the carrier transport material has been cured after the cross linking reaction is carried out. Moreover, because the carrier transport material would simultaneously perform an electron confining functionality when being used as a hole transport layer, the device efficiency of the OLED having the carrier transport material is obviously enhanced during the high-brightness operation especially.
    Type: Application
    Filed: July 25, 2014
    Publication date: January 28, 2016
    Inventors: Jwo-Huei Jou, Tsung-Han Li, SAULIUS GRIGALEVICIUS, GINTARÉ KRUCAITÉ
  • Patent number: 9209413
    Abstract: The present invention provides a series of spirally configured cis-stilbene/fluorene hybrid materials, which are spirally-configured cis-stilbene/fluorene derivatives having glass transition temperatures ranged from 110° C. to 135° C., decomposition temperatures ranged from 380° C. to 425° C., reversible electron transport property, and balanced charges motilities. In addition, a variety of experimental data have proved that this spirally configured cis-stilbene/fluorene hybrid materials can indeed be used as a hole-blocking type electron-transporter and/or a host material for phosphorescent OLEDs.
    Type: Grant
    Filed: December 27, 2014
    Date of Patent: December 8, 2015
    Assignee: NICHEM FINE TECHNOLOGY CO. LTD.
    Inventors: Chien-Tien Chen, Jwo-Huei Jou
  • Patent number: 9013696
    Abstract: The present invention relates to a light quality evaluating device, comprising a light receiving unit, first processing unit, a memory unit, a second processing unit, a display unit, and a power management unit, and being used for evaluating the light quality light based on physiological perception of human. In evaluating operation, it transfers a power spectrum of the light emitted from a light source to a luminance spectrum of light through a luminosity function. Next, the method compares the luminance spectrum of light with a corresponding luminance spectrum of blackbody radiation thereof. Therefore, an index of spectral resemblance with respect to the black body radiation (SRBR) would be calculated and then obtained, such that the SRBR can be used for evaluating the quality of the light emitted from the light source. Moreover, comparing to conventional CRI, SRBR is a better light quality evaluating method because of having fairness and consistency.
    Type: Grant
    Filed: October 14, 2013
    Date of Patent: April 21, 2015
    Assignee: National Tsing Hua University
    Inventors: Jwo-Huei Jou, Fu-Chin Yang, Chun-Ju Tseng
  • Publication number: 20150070701
    Abstract: The present invention relates to a light quality evaluating device, comprising a light receiving unit, first processing unit, a memory unit, a second processing unit, a display unit, and a power management unit, and being used for evaluating the light quality light based on physiological perception of human. In evaluating operation, it transfers a power spectrum of the light emitted from a light source to a luminance spectrum of light through a luminosity function. Next, the method compares the luminance spectrum of light with a corresponding luminance spectrum of blackbody radiation thereof. Therefore, an index of spectral resemblance with respect to the black body radiation (SRBR) would be calculated and then obtained, such that the SRBR can be used for evaluating the quality of the light emitted from the light source. Moreover, comparing to conventional CRI, SRBR is a better light quality evaluating method because of having fairness and consistency.
    Type: Application
    Filed: October 14, 2013
    Publication date: March 12, 2015
    Applicant: National Tsing Hua University
    Inventors: Jwo-Huei Jou, Fu-Chin Yang, Chun-Ju Tseng
  • Publication number: 20140313512
    Abstract: The present invention relates to a light source quality evaluating method by using spectral resemblance with respect to the blackbody radiation, which mainly comprises 5 method steps. This method is used for evaluating the quality of light based on physiological perception of human. In evaluating operation, the method firstly transfers a power spectrum of a light source to a luminance spectrum of light source through a luminosity function. Next, the method compares the luminance spectrum of light source with a luminance spectrum of the blackbody radiation thereof. Therefore, an index of spectral resemblance with respect to the black body radiation (SRBR) would be calculated and then obtained, such that the SRBR can be used for evaluating the quality of the light source. Moreover, comparing to conventional color rendering index (CRI), SRBR is a better light source quality evaluating method because of having fairness and consistency.
    Type: Application
    Filed: September 25, 2013
    Publication date: October 23, 2014
    Inventors: Jwo-Huei Jou, Chun-Ju Tseng, Fu-Chin Yang
  • Patent number: 8835215
    Abstract: A simple method is developed in the present invention for fabricating periodic ripple microstructures on the surface of an ITO film by using single-beam femtosecond laser pulses. The periodic ripple microstructures composed of self-organized nanodots can be directly fabricated through the irradiation of the femtosecond laser, without scanning. The ripple spacing of ˜800 nm, ˜400 nm and ˜200 nm observed in the periodic ripple microstructures can be attributed to the interference between the incident light and the scattering light of the femtosecond laser from the surface of the ITO film. In the present invention, the self-organized dots are formed by the constructive interference formed in the surface of the ITO film, where includes higher energy to break the In—O and Sn—O bonds and then form the In—In bonds. Therefore, the dots have higher surface current greater than other disconstructive regions of the ITO film.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: September 16, 2014
    Assignee: National Tsing Hua University
    Inventors: Jih-perng Leu, Chih-Wei Luo, Chih Wang, Jwo-Huei Jou