Patents by Inventor Liang-Sheng Liao
Liang-Sheng Liao 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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Publication number: 20240133716Abstract: A reading device for capacitive sensing element comprises a differential capacitive sensing element, a modulator, a charge-voltage conversion circuit, a phase adjustment circuit, a demodulator and a low-pass filter. The modulator outputs a modulation signal to the common node of the capacitive sensing element and modulates the output signal of the capacitive sensing element. The two input terminals of the charge-to-voltage conversion circuit are connected to two non-common nodes of the capacitive sensing element. The charge-to-voltage converter read the output charge of the capacitive sensing element and convert it into a voltage signal. The modulator generates a demodulation signal through the phase adjustment circuit. The demodulator receives the demodulation signal from the phase adjustment circuit and demodulates the output of the charge-to-voltage conversion circuit. The low-pass filter is connected to the output of the demodulator for filtering the demodulated voltage signal to output the read signal.Type: ApplicationFiled: January 13, 2023Publication date: April 25, 2024Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Lu-Pu LIAO, Yu-Sheng LIN, Liang-Ying LIU, Chin-Fu KUO
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Patent number: 9620721Abstract: An OLED device comprises a cathode, an anode, and has therebetween a light-emitting layer wherein the light-emitting layer comprises (a) a 2-arylanthracene compound and (b) a light-emitting second anthracene compound having amino substitution at a minimum of two positions, wherein at least one amine is substituted at the 2 position of the second anthracene compound.Type: GrantFiled: February 7, 2014Date of Patent: April 11, 2017Assignee: Global OLED Technology LLCInventors: Kevin P. Klubek, Liang-Sheng Liao, Viktor V. Jarikov, Denis Y. Kondakov, William J. Begley, Michele L. Ricks
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Patent number: 8956738Abstract: An OLED device including a cathode, a light emitting layer and an anode, in that order, and, having located between the cathode and the light emitting layer, a further layer containing an alkali metal or alkaline earth metal salt of a 2-(2-hydroxyphenyl)phenanthroline derivative, according to Formula (MC) below. Such devices exhibit reduced drive voltage while maintaining good luminance.Type: GrantFiled: October 5, 2009Date of Patent: February 17, 2015Assignee: Global OLED Technology LLCInventors: William J. Begley, Tukaram K. Hatwar, Liang-Sheng Liao, Kevin P. Klubek, Manju Rajeswaran, Natasha Andrievsky
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Patent number: 8795855Abstract: An OLED device comprises a cathode, an anode, and has therebetween a light-emitting layer wherein the light-emitting layer comprises (a) a 2-arylanthracene compound and (b) a light-emitting second anthracene compound having amino substitution at a minimum of two positions, wherein at least one amine is substituted at the 2 position of the second anthracene compound.Type: GrantFiled: January 30, 2007Date of Patent: August 5, 2014Assignee: Global OLED Technology LLCInventors: Kevin P. Klubek, Liang-Sheng Liao, Viktor V. Jarikov, Denis Y. Kondakov, William J. Begley, Michele L. Ricks
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Publication number: 20140151676Abstract: An OLED device comprises a cathode, an anode, and has therebetween a light-emitting layer wherein the light-emitting layer comprises (a) a 2-arylanthracene compound and (b) a light-emitting second anthracene compound having amino substitution at a minimum of two positions, wherein at least one amine is substituted at the 2 position of the second anthracene compound.Type: ApplicationFiled: February 7, 2014Publication date: June 5, 2014Applicant: Global OLED Technology LLCInventors: Kevin P. Klubek, Liang-Sheng Liao, Viktor V. Jarikov, Denis Y. Kondakov, William J. Begley, Michele L. Ricks
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Patent number: 8237157Abstract: An organic device including at least two electrodes; at least one organic active layer, wherein the organic active layer is disposed in between two electrodes; and an electrode modification layer, wherein the electrode modification layer is disposed in between two electrodes and in contact with one of the electrodes; and the electrode modification layer includes a fluorocarbon compound selected from the materials having a chemical structure of (CxFy)n, wherein the “x”, “y”, and “n” are integers, and wherein 1<x?70, 1<y?50, and n?1.Type: GrantFiled: August 23, 2010Date of Patent: August 7, 2012Assignee: Global OLED Technology LLCInventors: Liang-Sheng Liao, Myron W. Culver, Ching W. Tang
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Patent number: 8129039Abstract: An OLED device comprising a cathode, an anode, and having there between a red light emitting layer containing a non-light-emitting fluoranthene compound with a 7,10-diaryl substituted fluoranthene nucleus having no aromatic rings annulated to the fluoranthene nucleus, and a red light-emitting phosphorescent dopant. OLED devices of the invention provide reduced drive voltage and improved color, and provide embodiments with other improved features such as operational stability and high luminance.Type: GrantFiled: October 26, 2007Date of Patent: March 6, 2012Assignee: Global OLED Technology, LLCInventors: William J. Begley, Liang-Sheng Liao
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Patent number: 8088500Abstract: The invention provides an OLED device including a cathode, an anode, and having there between a light-emitting layer, further including, between the cathode and the light emitting layer, a first layer containing a fluoranthene compound including one and only one fluoranthene nucleus and having no aromatic rings annulated to the fluoranthene nucleus, the fluoranthene nucleus having independently selected aromatic groups in the 7,10-positions and an azine group in the 8- or 9-position, provided that the azine group is not a phenanthroline group. The OLED device desirably includes a second layer containing an alkali metal or alkali metal compound, located between the cathode and the first layer. The OLED device can also include a polycyclic aromatic hydrocarbon compound in the first layer or in a third layer located between the first layer and the light-emitting layer. Devices of the invention provide improvement in features such as efficiency and drive voltage.Type: GrantFiled: November 12, 2008Date of Patent: January 3, 2012Assignee: Global OLED Technology LLCInventors: William J. Begley, Natasha Andrievsky, Liang-Sheng Liao
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Patent number: 8076009Abstract: The invention provides an OLED device comprising a cathode, an anode, and having there between a light-emitting layer, further comprising, between the cathode and the light emitting layer, a non-luminescent electron transporting layer containing a compound with a 7,10-diaryl substituted fluoranthene nucleus having no aromatic rings annulated to the fluoranthene nucleus and desirably comprises still further an additional layer containing an organic alkali metal compound, located between the cathode and the electron transporting layer. Devices of the invention provide improvement in features such as efficiency, drive voltage, and operational stability.Type: GrantFiled: October 26, 2007Date of Patent: December 13, 2011Assignee: Global OLED Technology, LLC.Inventors: William J. Begley, Liang-Sheng Liao, Natasha Andrievsky
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Patent number: 8057916Abstract: An OLED device includes an anode, a cathode, and at least one individually selected organic light-emitting layer disposed between the anode and cathode. The device also includes an electron-transporting layer disposed between the at least one light-emitting layer and the cathode, such electron-transporting layer including a first electron-transporting material, and an electron-injecting layer disposed between the electron-transporting layer and the cathode, such electron-injecting layer including a metal dopant having a work function less than 4.0 eV and an electron-transporting material that is different from the first electron-transporting material.Type: GrantFiled: April 20, 2005Date of Patent: November 15, 2011Assignee: Global OLED Technology, LLC.Inventors: Tukaram K. Hatwar, Liang-Sheng Liao, Yuan-Sheng Tyan, Steven A. Van Slyke
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Patent number: 8034465Abstract: An organic light-emitting device comprising an anode; a cathode; a hole-transporting layer disposed between the anode and the cathode; a phosphorescent light-emitting layer disposed between the hole-transporting layer and the cathode, wherein the phosphorescent light-emitting layer includes at least one host and at least one phosphorescent dopant; a first exciton-blocking layer disposed between the hole-transporting layer and the phosphorescent light-emitting layer; wherein the first exciton-blocking layer has a triplet energy greater than the triplet energy of the host in the phosphorescent light-emitting layer; and a second exciton-blocking layer disposed between the first exciton-blocking layer and the phosphorescent light-emitting layer, wherein the second exciton-blocking layer is in contact with the phosphorescent light-emitting layer, and wherein the second exciton-blocking layer has a triplet energy less than the triplet energy of the first exciton-blocking layer.Type: GrantFiled: June 20, 2007Date of Patent: October 11, 2011Assignee: Global OLED Technology LLCInventors: Liang-Sheng Liao, Xiaofan Ren, Cynthia A. Pellow, Yuan-Sheng Tyan
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Publication number: 20110203667Abstract: An organic device including at least two electrodes; at least one organic active layer, wherein the organic active layer is disposed in between two electrodes; and an electrode modification layer, wherein the electrode modification layer is disposed in between two electrodes and in contact with one of the electrodes; and the electrode modification layer includes a fluorocarbon compound selected from the materials having a chemical structure of (CxFy)n, wherein the “x”, “y”, and “n” are integers, and wherein 1<x?70, 1<y?50, and n?1.Type: ApplicationFiled: August 23, 2010Publication date: August 25, 2011Applicant: Global OLED Technology LLCInventors: Liang-Sheng Liao, Myron W. Culver, Ching W. Tang
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Patent number: 7931515Abstract: A method of manufacturing a micro-lens array and light-emitting device, comprising forming a first structured polymer film with close packed surface cavities having a mean diameter of less than 20 micrometers and a relatively lower surface energy surface, forming a transparent second structured film with an array of microlenses formed thereon corresponding to the cavities of the first structured film, wherein the second structured film comprises a relatively high surface energy material and has a refractive index greater than 1.45, and wherein the microlenses are randomly distributed, separating the second structured film with the micro-lens array from the first structured polymer film, and attaching the second structured film to a transparent substrate or cover of a light-emitting device through which light is emitted.Type: GrantFiled: May 21, 2010Date of Patent: April 26, 2011Assignee: Global OLED Technology LLCInventors: Krishnan Chari, Charles W. Lander, Liang-Sheng Liao, Paul D. Yacobucci
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Patent number: 7914908Abstract: Azatriphenylene derivatives and their use in the electron-transporting layer of an electroluminescent device that comprises an anode, a spaced-apart cathode, and at least one electron-transporting layer disposed between the spaced-apart anode and cathode. Such EL devices provide lower drive voltage, improved power efficiency, and longer operational lifetime.Type: GrantFiled: November 2, 2007Date of Patent: March 29, 2011Assignee: Global OLED Technology LLCInventors: Shiying Zheng, Liang-Sheng Liao
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Patent number: 7799439Abstract: An organic device including at least two electrodes; at least one organic active layer, wherein the organic active layer is disposed in between two electrodes; and an electrode modification layer, wherein the electrode modification layer is disposed in between two electrodes and in contact with one of the electrodes; and the electrode modification layer includes a fluorocarbon compound selected from the materials having a chemical structure of (CxFy)n, wherein the “x”, “y”, and “n” are integers, and wherein 1<x?70, 1<y?50, and n?1.Type: GrantFiled: January 25, 2006Date of Patent: September 21, 2010Assignee: Global OLED Technology LLCInventors: Liang-Sheng Liao, Myron W. Culver, Ching W. Tang
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Publication number: 20100224313Abstract: A method of manufacturing a micro-lens array and light-emitting device, comprising forming a first structured polymer film with close packed surface cavities having a mean diameter of less than 20 micrometers and a relatively lower surface energy surface, forming a transparent second structured film with an array of microlenses formed thereon corresponding to the cavities of the first structured film, wherein the second structured film comprises a relatively high surface energy material and has a refractive index greater than 1.45, and wherein the microlenses are randomly distributed, separating the second structured film with the micro-lens array from the first structured polymer film, and attaching the second structured film to a transparent substrate or cover of a light-emitting device through which light is emitted.Type: ApplicationFiled: May 21, 2010Publication date: September 9, 2010Inventors: Krishnan Chari, Charles W. Lander, Liang-Sheng Liao, Paul D. Yacobucci
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Patent number: 7777416Abstract: A method of manufacturing a micro-lens array and light-emitting device, including forming a first structured polymer film with close packed surface cavities having a mean diameter of less than 20 micrometers and a relatively lower surface energy surface, forming a transparent second structured film with an array of microlenses formed thereon corresponding to the cavities of the first structured film, wherein the second structured film includes a relatively high surface energy material and has a refractive index greater than 1.45, and wherein the microlenses are randomly distributed, separating the second structured film with the micro-lens array from the first structured polymer film, and attaching the second structured film to a transparent substrate or cover of a light-emitting device through which light is emitted.Type: GrantFiled: June 14, 2007Date of Patent: August 17, 2010Assignee: Global Oled Technology LLCInventors: Krishnan Chari, Charles W. Lander, Liang-Sheng Liao, Paul D. Yacobucci
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Publication number: 20100117520Abstract: The invention provides an OLED device including a cathode, an anode, and having there between a light-emitting layer, further including, between the cathode and the light emitting layer, a first layer containing a fluoranthene compound including one and only one fluoranthene nucleus and having no aromatic rings annulated to the fluoranthene nucleus, the fluoranthene nucleus having independently selected aromatic groups in the 7,10-positions and an azine group in the 8- or 9-position, provided that the azine group is not a phenanthroline group. The OLED device desirably includes a second layer containing an alkali metal or alkali metal compound, located between the cathode and the first layer. The OLED device can also include a polycyclic aromatic hydrocarbon compound in the first layer or in a third layer located between the first layer and the light-emitting layer. Devices of the invention provide improvement in features such as efficiency and drive voltage.Type: ApplicationFiled: November 12, 2008Publication date: May 13, 2010Inventors: William J. Begley, Natasha Andrievsky, Liang-Sheng Liao
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Publication number: 20100102706Abstract: An electroluminescent device including at least two spaced-apart electrodes wherein at least a portion of each of the two spaced-apart electrodes overlap within a first area and a second portion of the two spaced-apart electrodes do not overlap within a second area; a light-emitting layer having a first resistivity formed between the two electrodes, the light-emitting layer disposed to overlap at least a portion of both the first and second areas; a carrier-diffusing layer formed between the light-emitting layer and one of the spaced-apart electrodes; the carrier-diffusing layer disposed to overlap the light-emitting layer in at least a portion of both the first and second areas; and wherein the carrier-diffusing layer has a second resistivity selected to be lower than the first resistivity to cause light to be produced by the light-emitting layer within the first and second areas.Type: ApplicationFiled: October 28, 2008Publication date: April 29, 2010Inventors: Michael E. Miller, Liang-Sheng Liao
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Patent number: 7667391Abstract: A light-emitting device, comprising: a multi-layer stack of materials supported on an optically transparent support member, a first spatial filter, and a second spatial filter spaced from the first spatial filter. The multi-layer stack including at least one organic light-emitting layers, an anode layer, and a cathode layer. The first spatial filter is disposed intermediate the multi-layer stack of materials and the second spatial filter.Type: GrantFiled: August 4, 2006Date of Patent: February 23, 2010Assignee: Eastman Kodak CompanyInventors: Francisco J. Duarte, Kathleen M. Vaeth, Liang-Sheng Liao