Patents by Inventor Yi-Ming Chang
Yi-Ming Chang 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: 11977705Abstract: A touch event processing circuit includes receiving circuits and an average circuit. Each of the receiving circuits includes an operation amplifier, a current processing circuit, and a touch event detection circuit. The operation amplifier receives an input signal from a touch panel, and outputs a first current signal and a second current signal. The current processing circuit processes the first current signal and the second current signal according to a first current average signal and a second current average signal, to generate a processed current signal. The touch event detection circuit detects a touch event according to the processed current signal. The average circuit receives first current signals and second current signals from the receiving circuits; performs an average operation upon the first current signals, to generate the first current average signal; and performs an average operation upon the second current signals, to generate the second current average signal.Type: GrantFiled: November 28, 2022Date of Patent: May 7, 2024Assignee: HIMAX TECHNOLOGIES LIMITEDInventors: Jia-Ming He, Yaw-Guang Chang, Yi-Yang Tsai
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Publication number: 20240127765Abstract: Disclosed are a display device and a backlight control method for the display device. The display device includes a display panel, a backlight source, a first computing unit, and a second computing unit. The display panel includes a first display region and a second display region. The first light-emitting region corresponds to the first display region. The second light-emitting region corresponds to the second display region. The first computing unit calculates a first brightness distribution within a first range. The second computing unit calculates a second brightness distribution within a second range. The first light-emitting region emits light according to the first brightness distribution. The second light-emitting region emits light according to the second brightness distribution.Type: ApplicationFiled: September 11, 2023Publication date: April 18, 2024Applicants: Innolux Corporation, CARUX TECHNOLOGY PTE. LTD.Inventors: Yi-Cheng Chang, Yu-Ming Wu
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Patent number: 11955397Abstract: A semiconductor structure is provided. The semiconductor structure includes a substrate, a channel layer, a barrier layer, a compound semiconductor layer, a gate electrode, and a stack of dielectric layers. The channel layer is disposed on the substrate. The barrier layer is disposed on the channel layer. The compound semiconductor layer is disposed on the barrier layer. The gate electrode is disposed on the compound semiconductor layer. The stack of dielectric layers is disposed on the gate electrode. The stack of dielectric layers includes layers having different etching rates.Type: GrantFiled: November 9, 2020Date of Patent: April 9, 2024Assignee: Vanguard International Semiconductor CorporationInventors: Shin-Cheng Lin, Cheng-Wei Chou, Ting-En Hsieh, Yi-Han Huang, Kwang-Ming Lin, Yung-Fong Lin, Cheng-Tao Chou, Chi-Fu Lee, Chia-Lin Chen, Shu-Wen Chang
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Patent number: 11950491Abstract: A semiconductor mixed material comprises an electron donor, a first electron acceptor and a second electron acceptor. The first electron donor is a conjugated polymer. The energy gap of the first electron acceptor is less than 1.4 eV. At least one of the molecular stackability, ?-?*stackability, and crystallinity of the second electron acceptor is smaller than the first electron acceptor. The electron donor system is configured to be a matrix to blend the first electron acceptor and the second electron acceptor. The present invention also provides an organic electronic device including the semiconductor mixed material.Type: GrantFiled: November 17, 2020Date of Patent: April 2, 2024Assignee: RAYNERGY TEK INCORPORATIONInventors: Yi-Ming Chang, Chuang-Yi Liao, Wei-Long Li, Yu-Tang Hsiao, Chun-Chieh Lee, Chia-Hua Li, Huei-Shuan Tan
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Publication number: 20240105879Abstract: A light-emitting diode and a manufacturing method thereof are provided. The manufacturing method includes following steps. First, an LED wafer is provided. The LED wafer includes a substrate and a light-emitting semiconductor stacking structure positioned on the surface of the substrate. The light-emitting semiconductor stacking structure includes a first type semiconductor layer, an active layer, and a second type semiconductor layer from a side of the substrate. Second, dicing lanes are defined on the upper surface of the LED wafer. Third, dicing is performed along the dicing lanes of the substrate using a laser. The laser is focused on the lower surface of the substrate to form a surface hole and focused inside the substrate to form an internal hole. The diameter of the surface hole is greater than the diameter of the internal hole. Fourth, the LED wafer is separated into LED chips along the dicing lanes.Type: ApplicationFiled: November 29, 2023Publication date: March 28, 2024Applicant: Quanzhou sanan semiconductor technology Co., Ltd.Inventors: TSUNG-MING LIN, CHUNG-YING CHANG, YI-JUI HUANG, YU-TSAI TENG
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Patent number: 11942543Abstract: A high-voltage semiconductor device structure is provided. The high-voltage semiconductor device structure includes a semiconductor substrate, a source ring in the semiconductor substrate, and a drain region in the semiconductor substrate. The high-voltage semiconductor device structure also includes a doped ring surrounding sides and a bottom of the source ring and a well region surrounding sides and bottoms of the drain region and the doped ring. The well region has a conductivity type opposite to that of the doped ring. The high-voltage semiconductor device structure further includes a conductor electrically connected to the drain region and extending over and across a periphery of the well region. In addition, the high-voltage semiconductor device structure includes a shielding element ring between the conductor and the semiconductor substrate. The shielding element ring extends over and across the periphery of the well region.Type: GrantFiled: June 29, 2022Date of Patent: March 26, 2024Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Hung-Chou Lin, Yi-Cheng Chiu, Karthick Murukesan, Yi-Min Chen, Shiuan-Jeng Lin, Wen-Chih Chiang, Chen-Chien Chang, Chih-Yuan Chan, Kuo-Ming Wu, Chun-Lin Tsai
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Publication number: 20240099121Abstract: An organic optoelectronic device comprises a first electrode, an active layer and a second electrode. Active layer materials of the active layer comprise a block conjugated polymer materials which includes a structure of formula I: The polymer 1 is a p-type polymer with high energy gap, and the polymer 1 comprises a first electron donor and a first electron acceptor arranged alternately. The polymer 2 is a p-type polymer with low energy gap, and the polymer 2 comprises a second electron donor and a second electron acceptor arranged alternately. Wherein, o and p>0. The organic optoelectronic device of the present invention transfers carriers through the polymer 2 with low energy gap, and suppresses the recombination probability of carriers through the polymer 1 with high energy gap, thereby reducing the leakage current of the organic optoelectronic device.Type: ApplicationFiled: August 18, 2023Publication date: March 21, 2024Inventors: Yi-Ming Chang, Chuang-Yi Liao, Yu-Tang Hsiao, CHENG-CHANG LAI
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Patent number: 11926266Abstract: An installing module includes a seat bracket, a plurality of lower gaskets, a device bracket and an upper gasket. The seat bracket includes a first locking plate and a second locking plate locked to each other. The first locking plate includes a first concave and the second locking plate includes a second concave corresponding to the first concave. The lower gaskets are respectively disposed on the first concave and the second concave. The lower gaskets face each other and jointly define a lower assembly hole and are disposed on a lower side of a head-support fixer of a car seat. The device bracket is locked to the seat bracket and an electronic device is pivotally coupled to the device bracket. The upper gasket is disposed between the device bracket and the head-support fixer, and the head-support fixer is clamped between the upper gasket and the lower gaskets.Type: GrantFiled: August 26, 2022Date of Patent: March 12, 2024Assignee: PEGATRON CORPORATIONInventors: Shih-Wei Yeh, Chien-Chih Lin, Yi-Ming Chou, Chun-Chieh Chang
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Publication number: 20240065388Abstract: An electronic device, a carrying buckle, and a carrying frame of a carrying buckle are provided. The carrying frame is integrally formed as a single one-piece structure and is insertable into a retaining case along an insertion direction for being fixed in the retaining case. The carrying frame includes a body segment, two buckling arms respectively extending from two opposite sides of the body segment, and an elastic structure that extends from the body segment. The elastic structure is elastically deformable when being pressed along the insertion direction, such that an abutting end of each of the two buckling arms has a displacement that allows the abutting end to be abutted against the retaining case.Type: ApplicationFiled: August 4, 2023Publication date: February 29, 2024Inventors: HUNG-MING CHANG, YI-CHIEH WANG, JEN-YUNG CHANG
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Publication number: 20240071504Abstract: A memory device is provided, including a memory array, a driver circuit, and recover circuit. The memory array includes multiple memory cells. Each memory cell is coupled to a control line, a data line, and a source line and, during a normal operation, is configured to receive first and second voltage signals. The driver circuit is configured to output at least one of the first voltage signal or the second voltage signal to the memory cells. The recover circuit is configured to output, during a recover operation, a third voltage signal, through the driver circuit to at least one of the memory cells. The third voltage signal is configured to have a first voltage level that is higher than a highest level of the first voltage signal or the second voltage signal, or lower than a lowest level of the first voltage signal or the second voltage signal.Type: ApplicationFiled: August 30, 2022Publication date: February 29, 2024Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Pei-Chun LIAO, Yu-Kai CHANG, Yi-Ching LIU, Yu-Ming LIN, Yih WANG, Chieh LEE
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Publication number: 20240061332Abstract: A method of patterning a semiconductor layer includes the following steps. The semiconductor layer is formed on a substrate. A photoresist layer is formed on the semiconductor layer. The photoresist layer is patterned to form an opening exposing an exposed region of the semiconductor layer. The exposed region of the semiconductor layer is dissolved with a solution to pattern the semiconductor layer, in which the solution includes a first organic solvent and a second organic solvent. The solubility of the semiconductor layer in the first organic solvent is greater than 1 mg/mL, and the solubility of the semiconductor layer in the second organic solvent is less than or equal to 1 mg/mL.Type: ApplicationFiled: November 15, 2022Publication date: February 22, 2024Inventors: Yi-Ming CHANG, Chia-Hua TSAI, Hsin-Yuan SU
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Patent number: 11903304Abstract: The invention relates to a photodiode, like an photovoltaic (OPV) cell or photodetector (OPD), comprising, between the photoactive layer and an electrode, a hole selective layer (HSL) for modifying the work function of the electrode and/or the photoactive layer, wherein the HSL comprises a fluoropolymer and optionally a conductive polymer, and to a composition comprising such a fluoropolymer and a conductive polymer.Type: GrantFiled: December 11, 2020Date of Patent: February 13, 2024Assignee: RAYNERGY TEK INCORPORATIONInventors: Yi-Ming Chang, Chuang-Yi Liao, Wei-Long Li, Kuen-Wei Tsai, Huei Shuan Tan, Nicolas Blouin, Luca Lucera, Tim Poertner, Graham Morse, Priti Tiwana
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Patent number: 11895918Abstract: Organic photovoltaic device comprises a first electrode, a first carrier transfer later, an active layer, a second carrier transfer layer and a second electrode. The first electrode is a transparent electrode. The active layer includes at least one electron donor, a first electron acceptor, and a second electron acceptor. Wherein, the electron donor is an organic polymer. The first electron acceptor is a crystalline material, and the self-molecule stacking distance of the first electron acceptor is less than 4 ?. The second electron acceptor is a crystal destruction material, and the second electron acceptor includes a fullerene derivative. The organic photovoltaic device of the present invention not only has a controllable morphology formation but also can enhance fill factor and improve power conversion efficiency.Type: GrantFiled: July 21, 2020Date of Patent: February 6, 2024Assignee: RAYNERGY TEK INC.Inventors: Yi-Ming Chang, Chia-Hua Li, Huei-Shuan Tan
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Publication number: 20230371293Abstract: A method of patterning semiconductor layer includes the following operations. A first electrode and a second electrode are formed on a substrate. A patterned polymer layer with a first portion on a portion of the second electrode and a second portion on an edge portion of the substrate is formed on the substrate. A semiconductor layer is deposited on the patterned polymer layer, the substrate, and the first electrode. The first portion of the patterned polymer layer and the semiconductor layer on the first portion are removed to form a through-hole in the semiconductor layer that exposes the portion of the second electrode. A conductive block is deposited on the semiconductor layer and in the through-hole.Type: ApplicationFiled: August 15, 2022Publication date: November 16, 2023Inventor: Yi-Ming CHANG
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Publication number: 20230371352Abstract: An electrode connection structure is provided and includes a substrate, a first electrode, a second electrode, a semiconductor layer, a third electrode, and a conductive block. The first electrode and the second electrode are located on the substrate. The semiconductor layer is located on the first electrode and the second electrode. The third electrode is on the semiconductor layer. The conductive block penetrates through the semiconductor layer and the third electrode and directly contacts the second electrode and the third electrode. A first upper surface of the conductive block and a second upper surface of the third electrode are in different planes.Type: ApplicationFiled: August 3, 2022Publication date: November 16, 2023Inventor: Yi-Ming CHANG
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Patent number: 11737351Abstract: Organic photoelectric device comprises a first electrode, a first carrier transfer layer, an active layer, a second carrier transfer layer and a second electrode. The first electrode is a transparent electrode. The active layer includes at least one organic semiconductor material including a structure such as Formula I: The second carrier transfer layer is composed between the active layer and the second electrode. When X1 and X2 are selected from one of Si, Ge and derivatives thereof, the active layer further includes an organic solvent, and the solubility of the organic solvent to the active layer is not less than 5 mg/mL. When X1 and X2 are selected from one of C and its derivatives, the active layer further includes an additive. The power conversion efficiency of the organic photoelectric device of the present invention can be up to more than 14%.Type: GrantFiled: April 10, 2020Date of Patent: August 22, 2023Assignee: RAYNERGY TEK INCORPORATIONInventors: Chain-Shu Hsu, Jun-Yan Yu, You-Wei Lin, Kuan-Lin Peng, Yi-Ming Chang, Chuang-Yi Liao, Huei Shuan Tan
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Publication number: 20230170425Abstract: An optoelectronic semiconductor structure is revealed. The optoelectronic semiconductor structure includes a substrate, a first electrode, an electrode contact, a semiconductor layer, and a second electrode. After a photoactive layer of the semiconductor structure absorbs energy from a light source to generate an exciton, the exciton dissociates into a first carrier and a second carrier. The first carrier is transferred to the first electrode through the first interface layer while the second carrier is transferred from the second electrode to the electrode contact directly by a tunneling effect.Type: ApplicationFiled: May 11, 2022Publication date: June 1, 2023Inventors: YI-MING CHANG, JHAO-LIN WU, ZI-WAN SUN
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Publication number: 20230129045Abstract: The present invention is a structure of a photodiode, which comprises a substrate; a first electrode is arranged on the substrate; a first transport layer is arranged on the first electrode; a photoactive layer is arranged on the first transport layer, the photoactive layer includes a P-type semiconductor layer and an N-type semiconductor layer. The P-type semiconductor layer and the N-type semiconductor layer have a composition ratio between 1:0.5 and 1:1.5. The photoactive layer has a thickness ranging from 1 ?m to 15 m, the photoactive layer has a first energy gap value, and a second electrode is disposed on the photoactive layer.Type: ApplicationFiled: September 13, 2022Publication date: April 27, 2023Inventors: YI-MING CHANG, KUEN-WEI TSAI
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Publication number: 20230057435Abstract: The present invention relates to a structure of photodiode, which comprises a substrate, a first electrode, an electron transport layer, a photoactive layer, a filter layer, and a second electrode. The first electrode is disposed on the substrate. The electron transport layer is disposed on the first electrode. The photoactive layer is disposed on the electron transport layer. The photoactive layer has a first energy gap value. The filter layer is disposed on the photoactive layer and has a second energy gap value. The second electrode is disposed on the filter layer. The second energy gap value is greater than the first energy gap value. The ratio of the second energy gap value to the first energy gap value is an energy gap ratio. The energy gap ratio is greater than 1 and less than or equal to 3.Type: ApplicationFiled: August 22, 2022Publication date: February 23, 2023Inventors: YI-MING CHANG, KUEN-WEI TSAI
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Publication number: 20220376181Abstract: An organic semiconductor device is revealed. The organic semiconductor device includes a first electrode, an electron transport layer, an active layer, a hole transport layer, and a second electrode. The active layer includes an electron donor and at least one electron acceptor. The energy barrier between HOMO level of the electron donor and the energy level of PEDOT:PSS or derivatives in the electron transport layer is less than 0.4 eV. The use of the organic semiconductor device and a formulation of materials for the active layer are also disclosed.Type: ApplicationFiled: September 23, 2021Publication date: November 24, 2022Inventors: YI-MING CHANG, KUEN-WEI TSAI, JHAO-LIN WU, WEI-LONG LI, YU-TANG HSIAO, CHUANG-YI LIAO