Patents by Inventor Chun-An Shih
Chun-An Shih 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: 20240155935Abstract: A compound comprising a first ligand LA of Formula I, In Formula I, moiety B is a monocyclic ring or a polycyclic fused ring system; X1, X2, and Z1 are C or N; Y1 is O, S, Se, Te, CRR?, SiRR?, GeRR?, PR, AsR, SbR, or BiR; K1 is a direct bond, O, S, N(R?), P(R?), B(R?), C(R?)(R?), or Si(R?)(R?); each R, R?, R?, R?, RA, and RB is hydrogen or a general substituent; any two substituents may be joined or fused to form a ring; LA is coordinated to a metal M to form a 5-membered or 6-membered chelate ring; and two RB substituents join to form a 5-membered ring if Y1 is O, S, or Se. Formulations, OLEDs, and consumer products comprising the compound are also provided.Type: ApplicationFiled: September 20, 2023Publication date: May 9, 2024Applicant: Universal Display CorporationInventors: Wei-Chun SHIH, Harvey WENDT, Jui-Yi TSAI, Pierre-Luc T. BOUDREAULT, Alexey Borisovich DYATKIN
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Patent number: 11978492Abstract: The disclosed system and method reduce on-chip power IR drop caused by large write current, to increase the write IO number or improve write throughput and to suppress write voltage ripple at the start and end of a write operation. The disclosed systems and methods are described in relation to stabilizing the bit line voltage for MRAMs, however, the disclosed systems and methods can be used to stabilize the bit line voltage of any memory configuration that draws large currents during short write pulses or, more generally, to selectively assist a power supply generator in supplying adequate power to a load at times of large power consumption.Type: GrantFiled: May 5, 2022Date of Patent: May 7, 2024Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Yen-An Chang, Po-Hao Lee, Yi-Chun Shih
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Publication number: 20240140973Abstract: A compound comprising a ligand of LA of Formula I, is provided with variables as defined herein. Formulations, OLEDs, and consumer products including the compound are also disclosed.Type: ApplicationFiled: December 13, 2023Publication date: May 2, 2024Applicant: Universal Display CorporationInventors: Jui-Yi TSAI, Alexey Borisovich DYATKIN, Walter YEAGER, Pierre-Luc T. BOUDREAULT, Wei-Chun SHIH, Eric A. MARGULIES
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Patent number: 11970508Abstract: Provided are transition metal compounds having 1,2,3-triazine. Also provided are formulations comprising these transition metal compounds having 1,2,3-triazine. Further provided are OLEDs and related consumer products that utilize these transition metal compounds having 1,2,3-triazine.Type: GrantFiled: March 29, 2021Date of Patent: April 30, 2024Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: Zhiqiang Ji, Pierre-Luc T. Boudreault, Wei-Chun Shih, Alexey Borisovich Dyatkin, Jui-Yi Tsai
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Publication number: 20240136183Abstract: A photo resist layer is used to protect a dielectric layer and conductive elements embedded in the dielectric layer when patterning an etch stop layer underlying the dielectric layer. The photo resist layer may further be used to etch another dielectric layer underlying the etch stop layer, where etching the next dielectric layer exposes a contact, such as a gate contact. The bottom layer can be used to protect the conductive elements embedded in the dielectric layer from a wet etchant used to etch the etch stop layer.Type: ApplicationFiled: January 2, 2024Publication date: April 25, 2024Inventors: Yu-Shih Wang, Hong-Jie Yang, Chia-Ying Lee, Po-Nan Yeh, U-Ting Chiu, Chun-Neng Lin, Ming-Hsi Yeh, Kuo-Bin Huang
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Publication number: 20240130220Abstract: Provided are organometallic compounds comprising iridium as a central metal atom which is coordinated by two three-dentate ligands which each comprise at least three 5-membered or 6-membered rings. Also provided are formulations comprising these organometallic compounds. Further provided are organic light emitting devices (OLEDs) and related consumer products that utilize these organometallic compounds.Type: ApplicationFiled: September 6, 2023Publication date: April 18, 2024Applicant: UNIVERSAL DISPLAY CORPORATIONInventors: Jui-Yi TSAI, Walter YEAGER, Henry Carl HERBOL, Harvey WENDT, Wei-Chun SHIH, Alexey Borisovich DYATKIN, Elena SHEINA, Chun LIN
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Patent number: 11961546Abstract: A reference circuit for generating a reference current includes a plurality of resistive elements including at least one magnetic tunnel junction (MTJ). A control circuit is coupled to a first terminal of the at least one MTJ and is configured to selectively flow current through the at least one MTJ in the forward and inverse direction to generate a reference current.Type: GrantFiled: August 2, 2021Date of Patent: April 16, 2024Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chia-Fu Lee, Hon-Jarn Lin, Po-Hao Lee, Ku-Feng Lin, Yi-Chun Shih, Yu-Der Chih
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Publication number: 20240113575Abstract: A hybrid permanent magnet motor rotor rotates around a central axis, and includes: a rotor core provided with a plurality of magnet installation slots; and a plurality of magnet parts embedded inside a plurality of magnet installation slots respectively, wherein the rotor is provided with a plurality of first magnetic pole parts and a plurality of second magnetic pole parts, the magnetic poles of the first magnetic pole part and the second magnetic pole part are arranged in opposite and alternately in the circumferential direction, and the magnetic placement of the first magnetic pole part is different from that of the second magnetic pole part, the amount of magnets used in the second magnetic pole part is greater than that used in the first magnetic pole part.Type: ApplicationFiled: August 25, 2023Publication date: April 4, 2024Inventors: Kuan YANG, Pei-Chun SHIH, Ta-Yin LUO, Guo-Jhih YAN, Sheng-Chan YEN, Cheng-Tsung LIU
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Patent number: 11949043Abstract: A micro light-emitting diode is provided. The micro light-emitting diode includes a first-type semiconductor layer having a first doping type; a light-emitting layer over the first-type semiconductor layer; a first-type electrode over the first-type semiconductor layer; a second-type semiconductor layer having a second doping type over the light-emitting layer, wherein the second doping type is different from the first doping type; a second-type electrode over the second-type semiconductor layer; and a barrier layer under the first-type semiconductor layer and away from the first-type electrode and the second-type electrode, wherein the barrier layer includes a doped region having the second doping type.Type: GrantFiled: October 29, 2020Date of Patent: April 2, 2024Assignee: PLAYNITRIDE DISPLAY CO., LTD.Inventors: Yen-Chun Tseng, Tzu-Yang Lin, Jyun-De Wu, Fei-Hong Chen, Yi-Chun Shih
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Publication number: 20240096781Abstract: A package structure including a semiconductor die, a redistribution circuit structure and an electronic device is provided. The semiconductor die is laterally encapsulated by an insulating encapsulation. The redistribution circuit structure is disposed on the semiconductor die and the insulating encapsulation. The redistribution circuit structure includes a colored dielectric layer, inter-dielectric layers and redistribution conductive layers embedded in the inter-dielectric layers. The electronic device is disposed over the colored dielectric layer and electrically connected to the redistribution circuit structure.Type: ApplicationFiled: March 20, 2023Publication date: March 21, 2024Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chun-Ti Lu, Hao-Yi Tsai, Chia-Hung Liu, Yu-Hsiang Hu, Hsiu-Jen Lin, Tzuan-Horng Liu, Chih-Hao Chang, Bo-Jiun Lin, Shih-Wei Chen, Hung-Chun Cho, Pei-Rong Ni, Hsin-Wei Huang, Zheng-Gang Tsai, Tai-You Liu, Po-Chang Shih, Yu-Ting Huang
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Publication number: 20240098330Abstract: A display device and a signal source switching method therefore are provided. The display device is connected with a first signal source device and a second signal source device and includes a switching circuit, a receiver circuit and a control circuit. The switching circuit includes a first connection port and a second connection port, which are respectively connected to the first signal source device and the second signal source device. When the control circuit receives a signal source switching command, the control circuit records a current operating state of each of the first signal source device and the second signal source device. When the control circuit receives an active source command from the first signal source device, the control circuit refers to the current operating state to control the switching circuit to switch the image signal source to the first signal source device or the second signal source device.Type: ApplicationFiled: June 16, 2023Publication date: March 21, 2024Applicant: Qisda CorporationInventors: Bo-Wei Shih, Li-Chun Chen, I-Hsuan Lai
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Patent number: 11932660Abstract: Provided are organometallic compounds. Also provided are formulations comprising these organometallic compounds. Further provided are OLEDs and related consumer products that utilize these organometallic compounds.Type: GrantFiled: January 4, 2021Date of Patent: March 19, 2024Assignee: Universal Display CorporationInventors: Wei-Chun Shih, Tyler Fleetham, Zhiqiang Ji, Pierre-Luc T. Boudreault, Tongxiang Lu, Rasha Hamze
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Publication number: 20240084051Abstract: Disclosed are support-activators and catalyst compositions comprising the support-activators for polymerizing olefins in which the support-activator includes clay heteroadduct, prepare from a colloidal phyllosilicate such as a colloidal smectite clay, which is chemically-modified with a heterocoagulation agent. By limiting the amount of heterocoagulation reagent relative to the colloidal smectite clay as described herein, the smectite heteroadduct support-activator is a porous and amorphous solid which can be readily isolated from the resulting slurry by a conventional filtration process, and which can activate metallocenes and related catalysts toward olefin polymerization. Related compositions and processes are disclosed.Type: ApplicationFiled: October 11, 2023Publication date: March 14, 2024Applicant: Formosa Plastics Corporation, U.S.A.Inventors: Michael D. Jensen, Kevin Chung, Daoyong Wang, Wei-Chun Shih, Guangxue Xu, Chih-Jian Chen, Charles R. Johnson, II, Mary Lou Cowen
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Publication number: 20240090311Abstract: A compound comprising a first ligand LA of Formula I, is provided. In Formula I, K is a direct bond, O, S, N(R?), P(R?), B(R?), C(R?)(R?), or Si(R?)(R?); each of X1 to X8 is C or N; Y is a linking group; each R?, R?, R, R?, R?, R1, RA, RB, and RC is hydrogen or a General Substituent; at least one RC is R*; R* has a structure of Cy-R**, where Cy is a monocyclic ring or a polycyclic fused ring system, which can be further substituted, and R** comprises (i) at least one electron-withdrawing group, (ii) a monocyclic ring or a polycyclic fused ring system, where the monocyclic ring and each ring of the polycyclic fused ring system is independently a 5-membered or 6-membered carbocyclic or heterocyclic ring, or (iii) both (i) and (ii); and LA is coordinated to a metal. Formulations, OLEDs, and consumer products containing the compound are also provided.Type: ApplicationFiled: April 10, 2023Publication date: March 14, 2024Applicant: UNIVERSAL DISPLAY CORPORATIONInventors: Jui-Yi TSAI, Alexey Borisovich DYATKIN, Tyler FLEETHAM, Wei-Chun SHIH
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Publication number: 20240090310Abstract: A compound comprising a first ligand LA of Formula I, is provided. In Formula I, moiety A is a 5-membered or 6-membered ring; moiety B is a fused ring structure comprising at least four rings; K is a direct bond, O, or S; each of Z1 and Z2 is independently C or N; each RA and RB is independently hydrogen or a General Substituent; at least one RB comprises a cyclic group or an electron-withdrawing group; LA is coordinated to a metal M that has an atomic mass of at least 40 and is optionally coordinated to other ligands; and the ligand LA is optionally linked with other ligands. Formulations, OLEDs, and consumer products including the compound are also provided.Type: ApplicationFiled: April 10, 2023Publication date: March 14, 2024Applicant: UNIVERSAL DISPLAY CORPORATIONInventors: Jui-Yi TSAI, Alexey Borisovich DYATKIN, Walter YEAGER, Pierre-Luc T. BOUDREAULT, Hsiao-Fan CHEN, Wei-Chun SHIH
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Publication number: 20240076307Abstract: Provided are compounds of Formula Ir(LA)x(LC)y wherein: ligand LA has Formula I? ?and ligand LC has Formula II?Type: ApplicationFiled: October 10, 2023Publication date: March 7, 2024Applicant: Universal Display CorporationInventors: Wei-Chun SHIH, Zhiqiang JI, Pierre-Luc T. BOUDREAULT, Hsiao-Fan CHEN, Tongxiang LU
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Patent number: 11921529Abstract: Described is an apparatus which comprises: a plurality of transistors coupled to an input power supply and to a load; a first comparator with a first node coupled to the load, and a second node coupled to a first reference; a second comparator with a first node coupled to the load, and a second node coupled to a second reference, the second reference being different from the first reference; and a logic unit to receive output of the first comparator and output of the second comparator, the logic unit to turn on or off transistors of the plurality of transistors according to outputs of the first and second comparators.Type: GrantFiled: June 26, 2020Date of Patent: March 5, 2024Assignee: Intel CorporationInventors: Yi-Chun Shih, Kaushik Mazumdar, Stephen T. Kim, Rinkle Jain, James W. Tschanz, Muhammad M. Khellah
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Patent number: 11923036Abstract: A memory device, such as an MRAM memory, includes a memory array with a plurality of bit cells. The memory array is configured to store trimming information and store user data. A sense amplifier is configured to read the trimming information from the memory array, and a trimming register is configured to receive the trimming information from the sense amplifier. The sense amplifier is configured to receive the trimming information from the trimming register so as to operate in a trimmed mode for reading the user data from the memory array.Type: GrantFiled: February 13, 2023Date of Patent: March 5, 2024Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Yi-Chun Shih, Chia-Fu Lee, Yu-Der Chih
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Patent number: 11922844Abstract: An integrated driving device is provided. The integrated driving device includes a touch sensing circuit and an optical sensing circuit. The touch sensing circuit is configured to perform touch sensing in a plurality of touch sensing periods during a first frame period. The optical sensing circuit is configured to perform optical sensing during at least one optical sensing period during the first frame period to obtain optical sensing signals for generating first ambient light information. The touch sensing periods and the optical sensing period are non-overlapping. Correspondingly, an operation method of an integrated driving device is also provided.Type: GrantFiled: April 27, 2021Date of Patent: March 5, 2024Assignee: Novatek Microelectronics Corp.Inventors: Wei-Lun Shih, Wu-Wei Lin, Jiun-Jie Tsai, Huang-Chin Tang, Ching-Chun Lin
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Publication number: 20240074301Abstract: Provided are compounds comprising ligands LA that are ligands of Pt and Ir complexes for OLED applications. Also provided are formulations comprising these compounds comprising ligands LA that are ligands of Pt and Ir complexes for OLED applications. Further provided are OLEDs and related consumer products that utilize these compounds comprising ligands LA that are ligands of Pt and Ir complexes for OLED applications.Type: ApplicationFiled: October 5, 2023Publication date: February 29, 2024Applicant: UNIVERSAL DISPLAY CORPORATIONInventors: Wystan Neil PALMER, Wei-Chun SHIH, George FITZGERALD, Joseph A. MACOR, Rasha HAMZE, Pierre-Luc T. BOUDREAULT, Geza SZIGETHY, Zhiqiang JI, Derek Ian WOZNIAK, Hsiao-Fan CHEN