Patents by Inventor Ping-Sheng Kuo
Ping-Sheng Kuo 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: 20170261800Abstract: The present invention provides a protective circuit, employed to protect a liquid crystal display, and the liquid crystal display includes a display panel and a level translator providing a clock signal to the display panel through an output line, and the protective circuit includes a first transistor, a detection circuit and a controller coupled to both the first transistor and the detection circuit, and the first transistor is electrically coupled to the detection circuit and the output line, and the clock signal is outputted to the display panel through the first transistor, and the detection circuit detects the clock signal and determines whether the clock signal is normal or not, and as the clock signal is abnormal, the controller controls the level translator to stop outputting the clock signal to the display panel.Type: ApplicationFiled: September 18, 2015Publication date: September 14, 2017Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd.Inventors: Xianming ZHANG, Ping-sheng KUO, Ming-wei CHEN
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Publication number: 20170229088Abstract: The present invention discloses a LCD device and a LCD. The LCD device includes: a power supply unit, a gate driver circuit, a source driver circuit and a plurality of data lines and scan lines that interlace mutually, the gate driver circuit includes a plurality of gate driver integrated circuits, the source driver circuit includes a plurality of source driver integrated circuits, the power supply unit is applied to generate a gate high voltage and a gate low voltage; the power supply unit transmits the gate high voltage to a plurality of gate driver integrated circuits by a plurality of first transmission routes, the power supply unit transmits the gate low voltage to a plurality of gate driver integrated circuits by a plurality of second transmission routes, the plurality of gate driver integrated circuits provide scanning signals to the plurality of scan lines in turn.Type: ApplicationFiled: November 23, 2015Publication date: August 10, 2017Applicant: Shenzhen China Star Optoelectronics Technology Co. Ltd.Inventors: Lei WANG, Ping-sheng KUO, Li ZHOU, Yu-yeh CHEN
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Publication number: 20170186392Abstract: The present invention provides an electronic device (100) having smaller number of drive chips and including a timing controller (10), a gate and a source drive chips (20, 30), a pixel cells matrix (60) and a multiplexer (40). The multiplexer (40) includes a plurality of first signal outputs connected to the pixel cells matrix (60). The timing controller (10) might generate enable signals for the multiplexer (40). In this way, the multiplexer (40) could output scan signals to the pixel cells matrix by a corresponding signal end. The number of the drive chips could be reduced by the present invention.Type: ApplicationFiled: June 27, 2014Publication date: June 29, 2017Inventors: Ping-Sheng KUO, Tai-Jiun HWANG
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Publication number: 20170162124Abstract: Disclosed is an organic light-emitting display panel and a method for compensating voltage drop thereof. The organic light-emitting display panel is added with a voltage drop compensation unit, which is connected to a data driving unit, and used for calculating, as per a data voltage output by the data driving unit and inbuilt iterative algorithm, a voltage at a junction between a power wiring and each of a plurality of pixel units. Subsequently, the data voltage output by the data driving unit is compensated based on a voltage difference between the voltage as calculated and a supply voltage.Type: ApplicationFiled: January 29, 2015Publication date: June 8, 2017Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd.Inventor: Ping Sheng Kuo
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Publication number: 20170116902Abstract: A device and a method for processing a waited display picture of an OLED display device are provided. The device includes a block dividing unit for dividing a waited display picture into multiple blocks; an average grayscale determining unit for determining an average grayscale value of each block; a high grayscale determining unit for determining a block having an average grayscale value greater than a preset threshold value as a high grayscale block; an adjacent grayscale determining unit for determining an adjacent grayscale value of each high grayscale block; and a regulation unit for adjusting grayscale values of pixels of each high grayscale block. The present invention adjusts grayscale values using a block as a unit. Besides, the difference of luminous efficiency or light transmittance of different color components is also considered so as to effectively improve the life of the OLED display device.Type: ApplicationFiled: May 21, 2015Publication date: April 27, 2017Applicant: Shenzhen China Star Optoelectronics Technology Co. , Ltd.Inventors: Ping-sheng KUO, Li-wei CHU
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Publication number: 20170110052Abstract: The present disclosure discloses a pixel circuit, a display panel comprising the pixel circuit, and a display device comprising the pixel circuit. The pixel circuit comprises a first transistor, a second transistor, a third transistor, a fourth transistor, and a fifth transistor. The lifetime of the circuit can be prolonged by the pixel circuit with threshold voltage compensation function of the present disclosure. The pixel circuit can not only be used in large sized display device driven through SE mode, but also be used in medium or small sized display device driven through PE mode.Type: ApplicationFiled: September 19, 2014Publication date: April 20, 2017Inventor: Ping Sheng KUO
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Publication number: 20160307491Abstract: A method of driving active-matrix organic light-emitting diode (AMOLED) panels includes: (A) dividing a current frame of a current image corresponding to an i-th color component into a plurality of sub-frames, wherein i?[1,N], and N is a total number of the color component; (B) obtaining a sequence of the sub-frames of a previous frame of a previous image corresponding to the i-th color component, wherein the previous frame has been divided into a plurality of sub-frames by the same way with the current frame; (C) determining the sequence of the sub-frames of the current frame in accordance with the sequence of the sub-frames of the previous frame, wherein the sequence of the sub-frames (SF) of the current image is same with or is different from that of the previous frame; and (D) controlling the panel to display in accordance with the sequence of the sub-frames of the current frame determined by corresponding color components.Type: ApplicationFiled: March 20, 2015Publication date: October 20, 2016Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd.Inventors: Ping-sheng KUO, Li-wei CHU
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Patent number: 9436977Abstract: A method of grayscale compensation to defects on a display panel includes: (A) obtaining a set of coordination of the defect on the display panel, and determining a defect area where the defect locates based on the set of coordination; (B) obtaining a gamma curve of the defect, a gamma curve of a background of the defect area, and a standard gamma curve of the background of the display panel; (C) obtaining a standard gamma curve of the defect and a standard gamma curve of the background of the defect area; and (D) calculating a grayscale-compensation value for each grayscale of the defect, based on the standard gamma curve and the standard gamma curve of the background of the defect area. The present invention is to reduce calculation, and to achieve the best compensation to defects on a display panel.Type: GrantFiled: January 14, 2015Date of Patent: September 6, 2016Assignee: Shenzhen China Star Optoelectronics Technology Co., LtdInventors: Houliang Hu, Ping-sheng Kuo, Li-wei Chu
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Publication number: 20160189347Abstract: A method of grayscale compensation to defects on a display panel includes: (A) obtaining a set of coordination of the defect on the display panel, and determining a defect area where the defect locates based on the set of coordination; (B) obtaining a gamma curve of the defect, a gamma curve of a background of the defect area, and a standard gamma curve of the background of the display panel; (C) obtaining a standard gamma curve of the defect and a standard gamma curve of the background of the defect area; and (D) calculating a grayscale-compensation value for each grayscale of the defect, based on the standard gamma curve and the standard gamma curve of the background of the defect area. The present invention is to reduce calculation, and to achieve the best compensation to defects on a display panel.Type: ApplicationFiled: January 14, 2015Publication date: June 30, 2016Applicant: Shenzhen China Star Optoelectronics Technology Co. Ltd.Inventors: Houliang HU, Ping-sheng KUO, Li-wei CHU
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Patent number: 9348145Abstract: A naked-eye 3D liquid crystal display panel and a driving method for the same are provided. The naked-eye 3D liquid crystal display panel includes a first substrate, a second substrate disposed oppositely, and a liquid crystal layer. A side of the first substrate adjacent to the liquid crystal layer provides with a driving electrode layer. A side of the second substrate adjacent to the liquid crystal layer provides with a common electrode layer. The driving electrode layer and the common electrode layer respectively receive an AC voltage driving signal, which are the same in frequency and opposite in polarity such that the liquid crystal layer is tilted to form a 3D display. Accordingly, the voltage output requirement of the driving circuit of the 3D liquid crystal display panel 10 when displaying 3D is reduced such that the driving stability and load capacity of the driving circuit is improved.Type: GrantFiled: October 28, 2014Date of Patent: May 24, 2016Assignee: Shenzhen China Star Optoelectronics Technology Co., LtdInventors: Limin Wang, Ping-sheng Kuo
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Publication number: 20160116751Abstract: A naked-eye 3D liquid crystal display panel and a driving method for the same are provided. The naked-eye 3D liquid crystal display panel includes a first substrate, a second substrate disposed oppositely, and a liquid crystal layer. A side of the first substrate adjacent to the liquid crystal layer provides with a driving electrode layer. A side of the second substrate adjacent to the liquid crystal layer provides with a common electrode layer. The driving electrode layer and the common electrode layer respectively receive an AC voltage driving signal, which are the same in frequency and opposite in polarity such that the liquid crystal layer is tilted to form a 3D display. Accordingly, the voltage output requirement of the driving circuit of the 3D liquid crystal display panel 10 when displaying 3D is reduced such that the driving stability and load capacity of the driving circuit is improved.Type: ApplicationFiled: October 28, 2014Publication date: April 28, 2016Applicant: Shenzhen China Star Optoelectronics Technology Co. Ltd.Inventors: Limin WANG, Ping-sheng KUO
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Patent number: 9251742Abstract: An electrophoretic display apparatus and an image-updating method thereof are provided. The electrophoretic display apparatus comprises a display panel and a source driver. The display panel comprises a plurality of pixels and a plurality of source lines, and each pixel electrode is electrically coupled to an AC common voltage through a corresponding capacitor. The capacitor comprises a plurality of charged particles. The source driver comprises a first data-latching circuit and a second data-latching circuit. Each of the data-latching circuits comprises a transistor, a capacitor and an inverter. The first data-latching circuit receives image data and a data shift-register output pulse. The second data-latching circuit is electrically coupled between an output terminal of the first data-latching circuit and a source line and is used for receiving a data output pulse.Type: GrantFiled: April 5, 2012Date of Patent: February 2, 2016Assignee: AU OPTRONICS CORP.Inventors: Ping-Sheng Kuo, Hsiang-Lin Lin, Chih-Cheng Chan, Sheng-Wen Huang
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Patent number: 9142154Abstract: An electrophoretic display system includes an electrophoretic display panel, a timing controller, a data driver, and a gate driver. The data driver includes a first serial-to-parallel converter and a data converter. The first serial-to-parallel converter receives a plurality of first series data and converts the first series data into a plurality of second series data. The quantity of the second series data is more than the quantity of the first series data. The data converter receives the second series data and is electrically connected to the electrophoretic display panel. Besides, the data converter converts the second series data into display voltages, and the quantity of the display voltages is more than the quantity of the second series data. The gate driver is electrically connected to the electrophoretic display panel and the timing controller and controlled by the timing controller to provide gate driving voltages to the electrophoretic display panel.Type: GrantFiled: April 1, 2013Date of Patent: September 22, 2015Assignee: Au Optronics CorporationInventors: Ping-Sheng Kuo, Keh-Long Hwu, Chih-Cheng Chan, Yung-Hsiang Lan, Chih-Yu Yu
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Publication number: 20150187311Abstract: The present disclosure provides a scan driving circuit of a liquid crystal display (LCD) panel, the LCD panel, and a driving method of the LCD panel. The scan driving circuit of the LCD panel includes a plurality of driving assemblies that are successively cascaded. Each of the driving assemblies includes a first driving unit, a second driving unit, and a first controllable switch. The first driving unit includes a first pull-up control unit, a first pull-up switch, a first pull-down control unit, and a first pull-down switch. A pre-charge signal is input to an input end of the first pull-up control unit, a reference low level signal is input to an output end of the first pull-up control unit via the first pull-down control unit, and the output end of the first pull-up control unit is also coupled to a control end of the first pull-up switch. A first scanning clock signal is input to an input end of the first pull-up switch.Type: ApplicationFiled: January 27, 2014Publication date: July 2, 2015Inventor: Ping-sheng Kuo
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Patent number: 9054696Abstract: The present invention relates to a gate driving circuit, and a array substrate and a display using the same.Type: GrantFiled: January 23, 2014Date of Patent: June 9, 2015Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventor: Ping-Sheng Kuo
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Publication number: 20150102990Abstract: The present invention relates to a gate driving circuit, and an array substrate and a display panel thereof, wherein gate driving circuit includes multi-level gate driving units. A gate driving unit of each level comprises a starting unit, an energy storage unit, a pull-up unit, a first pull-down unit, a second pull-down unit and a third pull-down unit, wherein the second pull-down unit is coupled to the energy storage unit and a gate line, and configured to intermittently generate a second control signal based on a driving voltage, a clock pulse signal and a second reference voltage, and to pull the driving voltage and a gate signal on the gate line down to the second reference voltage.Type: ApplicationFiled: January 23, 2014Publication date: April 16, 2015Inventor: Ping-Sheng Kuo
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Publication number: 20150102735Abstract: The present invention relates to a gate driving circuit, and a array substrate and a display using the same.Type: ApplicationFiled: January 23, 2014Publication date: April 16, 2015Inventor: Ping-Sheng Kuo
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Patent number: 8896224Abstract: A driver circuit for an EL element is proposed. The driver circuit for the EL element includes a first TFT, a second TFT, a third TFT, a storage capacitor, and an EL element. The EL element includes an anode connected to a first supply voltage and a cathode connected to a source of the first TFT. A source of the second TFT is connected to a drain of the first TFT. A source of the third TFT is connected to a drain of the second TFT. A drain of the third TFT is connected to the ground. Brightness of the EL element can be prevented from being lowered due to EL element degradation by adopting the method of such connections.Type: GrantFiled: April 23, 2013Date of Patent: November 25, 2014Assignee: Shenzhen China Star Optoelectronics Technology Co., LtdInventor: Ping-Sheng Kuo
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Publication number: 20140312801Abstract: A driver circuit for an EL element is proposed. The driver circuit for the EL element includes a first TFT, a second TFT, a third TFT, a storage capacitor, and an EL element. The EL element includes an anode connected to a first supply voltage and a cathode connected to a source of the first TFT. A source of the second TFT is connected to a drain of the first TFT. A source of the third TFT is connected to a drain of the second TFT. A drain of the third TFT is connected to the ground. Brightness of the EL element can be prevented from being lowered due to EL element degradation by adopting the method of such connections.Type: ApplicationFiled: April 23, 2013Publication date: October 23, 2014Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd.Inventor: Ping-Sheng Kuo
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Publication number: 20140062980Abstract: An electrophoretic display system includes an electrophoretic display panel, a timing controller, a data driver, and a gate driver. The data driver includes a first serial-to-parallel converter and a data converter. The first serial-to-parallel converter receives a plurality of first series data and converts the first series data into a plurality of second series data. The quantity of the second series data is more than the quantity of the first series data. The data converter receives the second series data and is electrically connected to the electrophoretic display panel. Besides, the data converter converts the second series data into display voltages, and the quantity of the display voltages is more than the quantity of the second series data. The gate driver is electrically connected to the electrophoretic display panel and the timing controller and controlled by the timing controller to provide gate driving voltages to the electrophoretic display panel.Type: ApplicationFiled: April 1, 2013Publication date: March 6, 2014Applicant: Au Optronics CorporationInventors: Ping-Sheng Kuo, Keh-Long Hwu, Chih-Cheng Chan, Yung-Hsiang Lan, Chih-Yu Yu