Patents by Inventor Kun-Hsien Yang
Kun-Hsien Yang 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: 20240128876Abstract: A switching control circuit for use in controlling a resonant flyback power converter generates a first driving signal and a second driving signal. The first driving signal is configured to turn on the first transistor to generate a first current to magnetize a transformer and charge a resonant capacitor. The transformer and charge a resonant capacitor are connected in series. The second driving signal is configured to turn on the second transistor to generate a second current to discharge the resonant capacitor. During a power-on period of the resonant flyback power converter, the second driving signal includes a plurality of short-pulses configured to turn on the second transistor for discharging the resonant capacitor. A pulse-width of the short-pulses of the second driving signal is short to an extent that the second current does not exceed a current limit threshold.Type: ApplicationFiled: June 15, 2023Publication date: April 18, 2024Inventors: Yu-Chang Chen, Ta-Yung Yang, Kun-Yu Lin, Fu-Ciao Syu, Chia-Hsien Yang, Hsin-Yi Wu
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Publication number: 20240120844Abstract: A resonant flyback power converter includes: a first and a second transistors which form a half-bridge circuit for switching a transformer and a resonant capacitor to generate an output voltage; a current-sense device for sensing a switching current of the half-bridge circuit to generate a current-sense signal; and a switching control circuit generating a first and a second driving signals for controlling the first and the second transistors. The turn-on of the first driving signal controls the half-bridge circuit to generate a positive current to magnetize the transformer and charge the resonant capacitor. The turn-on of the second driving signal controls the half-bridge circuit to generate a negative current to discharge the resonant capacitor. The switching control circuit turns off the first transistor when the positive current exceeds a positive-over-current threshold, and/or, turns off the second transistor when the negative current exceeds a negative-over-current threshold.Type: ApplicationFiled: April 10, 2023Publication date: April 11, 2024Inventors: Kun-Yu LIN, Ta-Yung YANG, Yu-Chang CHEN, Hsin-Yi WU, Fu-Ciao SYU, Chia-Hsien YANG
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Patent number: 9418610Abstract: An exemplary liquid crystal display (LCD) provides data lines, gate lines, and pixel units arranged as a matrix array. A method for driving the LCD includes a step of analyzing and determining polarities of one column of the pixel units as determining pixels, thereby defining a first polarity group and a second polarity group, and a step of sequentially applying corresponding data signals to a part of the whole pixel units that are arranged at same rows with the first polarity group in a part of a period of a frame. Corresponding data signals are sequentially applied to the other part of the whole pixel units that are arranged at same rows with the second polarity group in another part of a period of a frame.Type: GrantFiled: March 19, 2015Date of Patent: August 16, 2016Assignee: INNOLUX CORPORATIONInventors: Shun-Ming Huang, Deng-Tzung Tang, Yaw-Shing Tseng, Kun-Hsien Yang, Wen-Hao Wu
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Publication number: 20150332646Abstract: An exemplary liquid crystal display (LCD) provides data lines, gate lines, and pixel units arranged as a matrix array. A method for driving the LCD includes a step of analyzing and determining polarities of one column of the pixel units as determining pixels, thereby defining a first polarity group and a second polarity group, and a step of sequentially applying corresponding data signals to a part of the whole pixel units that are arranged at same rows with the first polarity group in a part of a period of a frame. Corresponding data signals are sequentially applied to the other part of the whole pixel units that are arranged at same rows with the second polarity group in another part of a period of a frame.Type: ApplicationFiled: March 19, 2015Publication date: November 19, 2015Inventors: SHUN-MING HUANG, DENG-TZUNG TANG, YAW-SHING TSENG, KUN-HSIEN YANG, WEN-HAO WU
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Patent number: 9047833Abstract: An exemplary liquid crystal display (LCD) provides data lines, gate lines, and pixel units arranged as a matrix array. A method for driving the LCD includes a step of analyzing and determining polarities of one column of the pixel units as determining pixels, thereby defining a first polarity group and a second polarity group, and a step of sequentially applying corresponding data signals to a part of the whole pixel units that are arranged at same rows with the first polarity group in a part of a period of a frame. Corresponding data signals are sequentially applied to the other part of the whole pixel units that are arranged at same rows with the second polarity group in another part of a period of a frame.Type: GrantFiled: May 19, 2014Date of Patent: June 2, 2015Assignee: INNOLUX CORPORATIONInventors: Shun-Ming Huang, Deng-Tzung Tang, Yaw-Shing Tseng, Kun-Hsien Yang, Wen-Hao Wu
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Patent number: 9047834Abstract: An exemplary liquid crystal display (LCD) provides data lines, gate lines, and pixel units arranged as a matrix array. A method for driving the LCD includes a step of analyzing and determining polarities of one column of the pixel units as determining pixels, thereby defining a first polarity group and a second polarity group, and a step of sequentially applying corresponding data signals to a part of the whole pixel units that are arranged at same rows with the first polarity group in a part of a period of a frame. Corresponding data signals are sequentially applied to the other part of the whole pixel units that are arranged at same rows with the second polarity group in another part of a period of a frame.Type: GrantFiled: May 19, 2014Date of Patent: June 2, 2015Assignee: INNOLUX CORPORATIONInventors: Shun-Ming Huang, Deng-Tzung Tang, Yaw-Shing Tseng, Kun-Hsien Yang, Wen-Hao Wu
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Publication number: 20140253529Abstract: An exemplary liquid crystal display (LCD) provides data lines, gate lines, and pixel units arranged as a matrix array. A method for driving the LCD includes a step of analyzing and determining polarities of one column of the pixel units as determining pixels, thereby defining a first polarity group and a second polarity group, and a step of sequentially applying corresponding data signals to a part of the whole pixel units that are arranged at same rows with the first polarity group in a part of a period of a frame. Corresponding data signals are sequentially applied to the other part of the whole pixel units that are arranged at same rows with the second polarity group in another part of a period of a frame.Type: ApplicationFiled: May 19, 2014Publication date: September 11, 2014Applicant: INNOLUX CORPORATIONInventors: SHUN-MING HUANG, DENG-TZUNG TANG, YAW-SHING TSENG, KUN-HSIEN YANG, WEN-HAO WU
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Publication number: 20140253530Abstract: An exemplary liquid crystal display (LCD) provides data lines, gate lines, and pixel units arranged as a matrix array. A method for driving the LCD includes a step of analyzing and determining polarities of one column of the pixel units as determining pixels, thereby defining a first polarity group and a second polarity group, and a step of sequentially applying corresponding data signals to a part of the whole pixel units that are arranged at same rows with the first polarity group in a part of a period of a frame. Corresponding data signals are sequentially applied to the other part of the whole pixel units that are arranged at same rows with the second polarity group in another part of a period of a frame.Type: ApplicationFiled: May 19, 2014Publication date: September 11, 2014Applicant: INNOLUX CORPORATIONInventors: SHUN-MING HUANG, DENG-TZUNG TANG, YAW-SHING TSENG, KUN-HSIEN YANG, WEN-HAO WU
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Patent number: 8766961Abstract: An exemplary liquid crystal display (LCD) provides data lines, gate lines, and pixel units arranged as a matrix array. A method for driving the LCD includes a step of analyzing and determining polarities of one column of the pixel units as determining pixels, thereby defining a first polarity group and a second polarity group, and a step of sequentially applying corresponding data signals to a part of the whole pixel units that are arranged at same rows with the first polarity group in a part of a period of a frame. Corresponding data signals are sequentially applied to the other part of the whole pixel units that are arranged at same rows with the second polarity group in another part of a period of a frame.Type: GrantFiled: May 31, 2011Date of Patent: July 1, 2014Assignees: Innocom Technology (Shenzhen) Co., Ltd., Innolux CorporationInventors: Shun-Ming Huang, Deng-Tzung Tang, Yaw-Shing Tseng, Kun-Hsien Yang, Wen-Hao Wu
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Publication number: 20140139558Abstract: A driving controller for reducing crosstalk in a display panel device includes a type detection unit and a polarity configuration unit. The type detection unit receives a color domain signal corresponding to one line data of an image so as to decide a data type of the line data. The polarity configuration unit is connected to the type detection unit for producing a polarity configuration corresponding to the data type of the line data based on the data type.Type: ApplicationFiled: October 25, 2013Publication date: May 22, 2014Applicant: InnoLux CorporationInventors: Ming-Tsung TSENG, Kun-Hsien YANG, Yung-Yi CHIU, Cha YU
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Publication number: 20110292012Abstract: An exemplary liquid crystal display (LCD) provides data lines, gate lines, and pixel units arranged as a matrix array. A method for driving the LCD includes a step of analyzing and determining polarities of one column of the pixel units as determining pixels, thereby defining a first polarity group and a second polarity group, and a step of sequentially applying corresponding data signals to a part of the whole pixel units that are arranged at same rows with the first polarity group in a part of a period of a frame. Corresponding data signals are sequentially applied to the other part of the whole pixel units that are arranged at same rows with the second polarity group in another part of a period of a frame.Type: ApplicationFiled: May 31, 2011Publication date: December 1, 2011Applicants: CHIMEI INNOLUX CORPORATION, INNOCOM TECHNOLOGY (SHENZHEN) CO., LTD.Inventors: SHUN-MING HUANG, DENG-TZUNG TANG, YAW-SHING TSENG, KUN-HSIEN YANG, WEN-HAO WU
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Patent number: 7989829Abstract: An exemplary light emitting diode (200) includes a base (18), a semiconductor chip (20), a cover (28), and two optical layers (30). The semiconductor chip is formed on the base. The cover is formed on the base and covers the semiconductor chip. The optical layers cover part of a peripheral side of the cover respectively.Type: GrantFiled: December 26, 2006Date of Patent: August 2, 2011Assignee: Chimei Innolux CorporationInventors: Kun-Hsien Yang, Chien-Fan Tung
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Publication number: 20070216672Abstract: An exemplary power driving system (21) typically used in a liquid crystal display (LCD), including a power supply circuit (22), the power supply circuit (22) includes a flyback circuit (224) configured for transforming a high alternating current (AC) voltage to a plurality of low DC voltages and providing a plurality of low direct current (DC) voltages to a gate driver (283) and a data driver (282) of the LCD.Type: ApplicationFiled: March 19, 2007Publication date: September 20, 2007Inventors: Kun-Hsien Yang, Chien-Fan Tung
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Publication number: 20070217190Abstract: An exemplary light source array (230) includes at least one light source bar (33), each light source bar comprising a plurality of light source unit (35), each light source unit (35) has a first color LED (351), two second color LEDs (353) and two third color LEDs (355). The two second color LEDs and two third color LEDs are respectively disposed at two sides of the first color LED, and two adjacent LEDs in each light source bar have two different colors.Type: ApplicationFiled: March 19, 2007Publication date: September 20, 2007Inventors: Kun-Hsien Yang, An Shih, Chien-Fan Tung, Li-Chun Chang
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Publication number: 20070147070Abstract: An exemplary backlight module (11) includes a light guide plate (12), a reflector (18), and a light emitting diode unit (142). The light guide plate includes a light incident surface (122) and a diffusion pattern (126) located on the light incident surface. The reflector is positioned at a side of the light guide plate corresponding to the light incident surface, and has a reflection pattern (184) thereon. The light emitting diode unit is between the light incident surface and the reflector.Type: ApplicationFiled: December 20, 2006Publication date: June 28, 2007Inventors: Kun-Hsien Yang, An Shih
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Publication number: 20070146573Abstract: An exemplary light emitting diode (200) includes a base (18), a semiconductor chip (20), a cover (28), and two optical layers (30). The semiconductor chip is formed on the base. The cover is formed on the base and covers the semiconductor chip. The optical layers cover part of a peripheral side of the cover respectively.Type: ApplicationFiled: December 26, 2006Publication date: June 28, 2007Inventors: Kun-Hsien Yang, Chien-Fan Tung
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Publication number: 20070115688Abstract: An exemplary backlight module (12) includes a diffusing film (14), a frame (16), and a plurality of light tubes (18). The frame includes a bottom wall. The diffusing film is received in the frame. The light tubes are located between the diffusing film and the bottom wall of the frame. The light tubes are arranged in a matrix.Type: ApplicationFiled: November 22, 2006Publication date: May 24, 2007Inventors: Kun-Hsien Yang, An Shih