Patents by Inventor Chuang-Cheng YANG
Chuang-Cheng 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).
-
Patent number: 11120749Abstract: A display device includes a driving circuit and a control circuit. The driving circuit is configured to receive a data voltage in response to a scanning signal, and to control the brightness of a light emitting element according to the data voltage. The control circuit is configured to provide a stop signal to the driving circuit in response to a digital signal and the scanning signal, so as to stop the light emitting element from emitting light, and in turn control the light emission period of the light emitting element.Type: GrantFiled: December 10, 2019Date of Patent: September 14, 2021Assignee: AU OPTRONICS CORPORATIONInventors: Chun-Feng Lin, Kai-Wei Hong, Chuang-Cheng Yang, Yi-Cheng Lin, Ming-Hsien Lee
-
Patent number: 10971045Abstract: A display apparatus includes a pixel array, a plurality of gate lines and a plurality of de-load lines. The pixel array includes a plurality of display rows, each of the display rows includes a plurality of pixel circuits, and each of the pixel circuits includes a first transistor and a second transistor coupled in series between a data line and a display pixel. A control end of the first transistor of each of the pixel circuits is coupled to one of the gate lines for receiving a gate driving signal. A control end of the second transistor of each of the pixel circuits is coupled to one of the de-load lines for receiving a de-loading signal. Where an enable time period of the de-loading signal received by each of the pixel circuits covers an enable time period of the gate driving signal received by each of the pixel circuits.Type: GrantFiled: June 14, 2019Date of Patent: April 6, 2021Assignee: Au Optronics CorporationInventors: Chun-Feng Lin, Chuang-Cheng Yang, Ming-Hsien Lee, Yi-Cheng Lin, Wei-Chia Chiu
-
Patent number: 10930239Abstract: The present embodiment of the invention provides a gate driving circuit and a display apparatus using the gate driving circuit. The gate driving circuit has a plurality of shift registers, and each shift register includes a first output unit, a first pull-down unit, a second output unit, a second pull-down unit, a voltage coupling unit, and a voltage boosting unit. The first output unit is coupled to a node and a first output end. The second output unit is coupled to the node and a second output end. The first pull-down unit is coupled to the first output end and a reference potential. The second pull-down unit is coupled to the second output end and the reference potential. The voltage coupling unit is coupled between the node and the second output end. The voltage boosting unit is coupled to a preset potential, the first output end, and a node and a gate high potential of a shift register at a previous stage.Type: GrantFiled: November 21, 2019Date of Patent: February 23, 2021Assignee: AU OPTRONICS CORPORATIONInventors: Kai-Wei Hong, Chun-Da Tu, Ming-Hsien Lee, Chuang-Cheng Yang, Yi-Cheng Lin, Chun-Feng Lin
-
Patent number: 10810933Abstract: A control circuit includes a power supply switch unit and a reset switch unit. The power supply switch unit is electrically connected to a data line and a pixel circuit. When the data line has a data voltage, the power supply switch unit is turned on according to a power supply signal, so that the pixel circuit is charged by the data voltage. The reset switch unit is electrically connected to the pixel circuit. After the pixel circuit is charged by the data voltage, the reset switch unit is turned on according to the reset signal to reset a voltage of the pixel circuit to the reset voltage.Type: GrantFiled: July 9, 2019Date of Patent: October 20, 2020Assignee: AU OPTRONICS CORPORATIONInventors: Chun-Feng Lin, Chuang-Cheng Yang, Ming-Hsien Lee, Yi-Cheng Lin, Wei-Chia Chiu
-
Patent number: 10803788Abstract: A driving circuit includes a first driving switch, a second driving switch and a current regulating unit. The first driving switch is electrically connected to a first power source and a first light emitting element. When the first driving switch is turned on, the first driving switch is configured to receive a first current. The second driving switch is electrically connected to a second power source and a second light emitting element. When the second driving switch is turned on, the second driving switch is configured to receive a second current. The current regulating unit is electrically connected to a negative terminal of the second light emitting element and a positive terminal of the first light emitting element. When the current regulating unit is disabled, the second current sequentially flows through the second light emitting element and the first light emitting element.Type: GrantFiled: May 17, 2019Date of Patent: October 13, 2020Assignee: AU OPTRONICS CORPORATIONInventors: Ming-Hsien Lee, Yi-Cheng Lin, Chuang-Cheng Yang, Kai-Wei Hong, Chun-Feng Lin
-
Publication number: 20200312224Abstract: A control circuit includes a power supply switch unit and a reset switch unit. The power supply switch unit is electrically connected to a data line and a pixel circuit. When the data line has a data voltage, the power supply switch unit is turned on according to a power supply signal, so that the pixel circuit is charged by the data voltage. The reset switch unit is electrically connected to the pixel circuit. After the pixel circuit is charged by the data voltage, the reset switch unit is turned on according to the reset signal to reset a voltage of the pixel circuit to the reset voltage.Type: ApplicationFiled: July 9, 2019Publication date: October 1, 2020Inventors: Chun-Feng LIN, Chuang-Cheng YANG, Ming-Hsien LEE, Yi-Cheng LIN, Wei-Chia CHIU
-
Patent number: 10782808Abstract: A shift register and a touch display apparatus thereof are provided. The shift register includes a voltage setting unit, a driving unit, a control unit, a discharge unit, a first compensation transistor, and a second compensation transistor. The voltage setting unit sets a terminal voltage of an internal terminal. The driving unit is coupled to the internal terminal to provide a gate signal and a driving signal. The control unit receives the terminal voltage to provide a control signal. The discharge unit discharges the terminal voltage and the gate signal according to the control signal. The first compensation transistor and the second compensation transistor are coupled in series between a touch enable signal and the internal terminal, and control terminals of the first compensation transistor and the second compensation transistor receive the terminal voltage and the touch enable signal, respectively.Type: GrantFiled: June 14, 2018Date of Patent: September 22, 2020Assignee: Au Optronics CorporationInventors: Chun-Da Tu, Ming-Hsien Lee, Kai-Wei Hong, Chuang-Cheng Yang, Yi-Cheng Lin, Chun-Feng Lin
-
Patent number: 10748473Abstract: The disclosure provides a light emitting diode including a light emitting diode (LED), a first transistor, a second transistor and capacitor. A cathode terminal of the LED is configured to receive a first power supply voltage. A first port of the capacitor coupled to the gate of the first transistor is configured to store a data signal in a first duration. A first port of the second transistor is configured to receive a second power supply voltage. A gate of the second transistor is configured to receive a PWM signal in a second duration. A second port of the second transistor is coupled to the second port of the first transistor. The second transistor is turned on for a conducting time in the second duration according to the PWM signal, and the first transistor provides, in the conducting time, a drive current to the LED according to the data signal.Type: GrantFiled: July 31, 2019Date of Patent: August 18, 2020Assignee: AU OPTRONICS CORPORATIONInventors: Chuang-Cheng Yang, Ming-Hsien Lee, Kai-Wei Hong, Yi-Cheng Lin, Chun-Feng Lin
-
Patent number: 10733952Abstract: A multiplexer applied to a display device includes: a plurality of switching units, electrically coupled to a data driver and a plurality of pixel units, where the switching units are adapted to receive a plurality of input display data signals output by the data driver, and the switching units output a plurality of output display data signals to the electrically coupled pixel units, where each of the switching units includes a plurality of switch units, configuration locations of the switch units in each of the switching units are the same as, and some of the switch units configured at a same configuration location in the different switching units are electrically coupled to different control signal lines and have different wiring lengths, where the wiring lengths are distances between the switch units and the control signal lines.Type: GrantFiled: August 24, 2018Date of Patent: August 4, 2020Assignee: AU OPTRONICS CORPORATIONInventors: Yi-Cheng Lin, Ming-Hsien Lee, Kai-Wei Hong, Chun-Da Tu, Chuang-Cheng Yang, Chun-Feng Lin
-
Patent number: 10714668Abstract: A light-emitting device includes a substrate, a circuit array including a plurality of circuit units disposed on the substrate, a first conductive pattern, a second conductive pattern, a first wire pattern, and a second wire pattern disposed on the circuit array, and a light-emitting element disposed on one of the circuit units. The light-emitting element includes a first electrode and a second electrode respectively electrically connected to the first conductive pattern and the second conductive pattern. The second electrode is not overlapped with the first wire pattern and the second wire pattern. A manufacturing method of the light-emitting device is also provided.Type: GrantFiled: February 19, 2019Date of Patent: July 14, 2020Assignee: Au Optronics CorporationInventors: Ming-Hsien Lee, Yi-Cheng Lin, Chuang-Cheng Yang, Kai-Wei Hong, Chun-Feng Lin
-
Publication number: 20200211433Abstract: A display apparatus includes a pixel array, a plurality of gate lines and a plurality of de-load lines. The pixel array includes a plurality of display rows, each of the display rows includes a plurality of pixel circuits, and each of the pixel circuits includes a first transistor and a second transistor coupled in series between a data line and a display pixel. A control end of the first transistor of each of the pixel circuits is coupled to one of the gate lines for receiving a gate driving signal. A control end of the second transistor of each of the pixel circuits is coupled to one of the de-load lines for receiving a de-loading signal. Where an enable time period of the de-loading signal received by each of the pixel circuits covers an enable time period of the gate driving signal received by each of the pixel circuits.Type: ApplicationFiled: June 14, 2019Publication date: July 2, 2020Applicant: Au Optronics CorporationInventors: Chun-Feng Lin, Chuang-Cheng Yang, Ming-Hsien Lee, Yi-Cheng Lin, Wei-Chia Chiu
-
Publication number: 20200202795Abstract: A display device includes a driving circuit and a control circuit. The driving circuit is configured to receive a data voltage in response to a scanning signal, and to control the brightness of a light emitting element according to the data voltage. The control circuit is configured to provide a stop signal to the driving circuit in response to a digital signal and the scanning signal, so as to stop the light emitting element from emitting light, and in turn control the light emission period of the light emitting element.Type: ApplicationFiled: December 10, 2019Publication date: June 25, 2020Inventors: Chun-Feng Lin, Kai-Wei Hong, Chuang-Cheng Yang, Yi-Cheng Lin, Ming-Hsien Lee
-
Publication number: 20200160776Abstract: A driving circuit includes a first driving switch, a second driving switch and a current regulating unit. The first driving switch is electrically connected to a first power source and a first light emitting element. When the first driving switch is turned on, the first driving switch is configured to receive a first current. The second driving switch is electrically connected to a second power source and a second light emitting element. When the second driving switch is turned on, the second driving switch is configured to receive a second current. The current regulating unit is electrically connected to a negative terminal of the second light emitting element and a positive terminal of the first light emitting element. When the current regulating unit is disabled, the second current sequentially flows through the second light emitting element and the first light emitting element.Type: ApplicationFiled: May 17, 2019Publication date: May 21, 2020Inventors: Ming-Hsien LEE, Yi-Cheng LIN, Chuang-Cheng YANG, Kai-Wei HONG, Chun-Feng LIN
-
Publication number: 20200098305Abstract: The disclosure provides a light emitting diode including a light emitting diode (LED), a first transistor, a second transistor and capacitor. A cathode terminal of the LED is configured to receive a first power supply voltage. A first port of the capacitor coupled to the gate of the first transistor is configured to store a data signal in a first duration. A first port of the second transistor is configured to receive a second power supply voltage. A gate of the second transistor is configured to receive a PWM signal in a second duration. A second port of the second transistor is coupled to the second port of the first transistor. The second transistor is turned on for a conducting time in the second duration according to the PWM signal, and the first transistor provides, in the conducting time, a drive current to the LED according to the data signal.Type: ApplicationFiled: July 31, 2019Publication date: March 26, 2020Inventors: Chuang-Cheng YANG, Ming-Hsien LEE, Kai-Wei HONG, Yi-Cheng LIN, Chun-Feng LIN
-
Publication number: 20200090614Abstract: The present embodiment of the invention provides a gate driving circuit and a display apparatus using the gate driving circuit. The gate driving circuit has a plurality of shift registers, and each shift register includes a first output unit, a first pull-down unit, a second output unit, a second pull-down unit, a voltage coupling unit, and a voltage boosting unit. The first output unit is coupled to a node and a first output end. The second output unit is coupled to the node and a second output end. The first pull-down unit is coupled to the first output end and a reference potential. The second pull-down unit is coupled to the second output end and the reference potential. The voltage coupling unit is coupled between the node and the second output end. The voltage boosting unit is coupled to a preset potential, the first output end, and a node and a gate high potential of a shift register at a previous stage.Type: ApplicationFiled: November 21, 2019Publication date: March 19, 2020Inventors: Kai-Wei HONG, Chun-Da TU, Ming-Hsien LEE, Chuang-Cheng YANG, Yi-Cheng LIN, Chun-Feng LIN
-
Publication number: 20200028044Abstract: A light-emitting device includes a substrate, a circuit array including a plurality of circuit units disposed on the substrate, a first conductive pattern, a second conductive pattern, a first wire pattern, and a second wire pattern disposed on the circuit array, and a light-emitting element disposed on one of the circuit units. The light-emitting element includes a first electrode and a second electrode respectively electrically connected to the first conductive pattern and the second conductive pattern. The second electrode is not overlapped with the first wire pattern and the second wire pattern. A manufacturing method of the light-emitting device is also provided.Type: ApplicationFiled: February 19, 2019Publication date: January 23, 2020Applicant: Au Optronics CorporationInventors: Ming-Hsien Lee, Yi-Cheng Lin, Chuang-Cheng Yang, Kai-Wei Hong, Chun-Feng Lin
-
Patent number: 10522105Abstract: The present embodiment of the invention provides a gate driving circuit and a display apparatus using the gate driving circuit. The gate driving circuit has a plurality of shift registers, and each shift register includes a first output unit, a first pull-down unit, a second output unit, a second pull-down unit, a voltage coupling unit, and a voltage boosting unit. The first output unit is coupled to a node and a first output end. The second output unit is coupled to the node and a second output end. The first pull-down unit is coupled to the first output end and a reference potential. The second pull-down unit is coupled to the second output end and the reference potential. The voltage coupling unit is coupled between the node and the second output end. The voltage boosting unit is coupled to a preset potential, the first output end, and a node and a gate high potential of a shift register at a previous stage.Type: GrantFiled: April 16, 2018Date of Patent: December 31, 2019Assignee: AU OPTRONICS CORPORATIONInventors: Kai-Wei Hong, Chun-Da Tu, Ming-Hsien Lee, Chuang-Cheng Yang, Yi-Cheng Lin, Chun-Feng Lin
-
Publication number: 20190287444Abstract: A display panel including a pixel array, a plurality of first shift registers, a plurality of second shift registers, a plurality of first discharge circuits, and a plurality of second discharge circuits is provided. The pixel array includes a plurality of gate lines. The shift registers provide a plurality of gate signals to the gate lines. Each of the first discharge circuits receives a third gate signal to discharge a same first gate line together with the corresponding first shift register. A rising edge of the third gate signal substantially matches a falling edge of the corresponding first gate signal. Each of the second discharge circuits receives a fourth gate signal to discharge a same second gate line together with the corresponding second shift register. A rising edge of the fourth gate signal substantially matches a falling edge of the corresponding second gate signal.Type: ApplicationFiled: August 5, 2018Publication date: September 19, 2019Applicant: Au Optronics CorporationInventors: Chun-Da Tu, Ming-Hsien Lee, Yi-Cheng Lin, Kai-Wei Hong, Chuang-Cheng Yang, Chun-Feng Lin
-
Patent number: 10339854Abstract: Provided is a gate driving circuit, coupled to a pixel array having multiple gate lines. The gate driving circuit includes multiple shift registers and multiple pull-up transistor, coupled to the pixel array and separately located on two opposite sides of the pixel array. Shift registers located on a same side are sequentially coupled to each other. An nth (n is a positive integer) pull-up transistor includes: a control end, coupled to a control end of a driving transistor of an (n?1)th shift register located on a same side as the nth pull-up transistor; a first end, used to receive a clock signal, where the clock signal is further input to an nth shift register of the shift registers located on an opposite side of the nth pull-up transistor; and a second end, coupled to an nth gate line of the pixel array and used to drive the nth gate line.Type: GrantFiled: January 8, 2018Date of Patent: July 2, 2019Assignee: AU OPTRONICS CORPORATIONInventors: Chuang-Cheng Yang, Chun-Feng Lin, Ming-Hsien Lee, Kai-Wei Hong, Chun-Da Tu, Yi-Cheng Lin
-
Publication number: 20190064978Abstract: A shift register and a touch display apparatus thereof are provided. The shift register includes a voltage setting unit, a driving unit, a control unit, a discharge unit, a first compensation transistor, and a second compensation transistor. The voltage setting unit sets a terminal voltage of an internal terminal. The driving unit is coupled to the internal terminal to provide a gate signal and a driving signal. The control unit receives the terminal voltage to provide a control signal. The discharge unit discharges the terminal voltage and the gate signal according to the control signal. The first compensation transistor and the second compensation transistor are coupled in series between a touch enable signal and the internal terminal, and control terminals of the first compensation transistor and the second compensation transistor receive the terminal voltage and the touch enable signal, respectively.Type: ApplicationFiled: June 14, 2018Publication date: February 28, 2019Applicant: Au Optronics CorporationInventors: Chun-Da Tu, Ming-Hsien Lee, Kai-Wei Hong, Chuang-Cheng Yang, Yi-Cheng Lin, Chun-Feng Lin