Patents by Inventor Che-Wei Tung

Che-Wei Tung 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: 11922863
    Abstract: A display panel and a pixel circuit thereof are provided. The pixel circuit includes a driving current generator, a pulse width signal generator, a voltage provider, and a current enabler. The driving current generator provides a driving current. The pulse width signal generator includes an output switch. The output switch is controlled by a control signal, and provides a pulse width signal according to the control signal. The voltage provider adjusts the control signal according to a data write-in signal and a pulse width modulation enable signal. The current enabler provides the driving current to a lighting component according to the pulse width signal and an amplitude modulation enable signal.
    Type: Grant
    Filed: December 22, 2022
    Date of Patent: March 5, 2024
    Assignee: AUO Corporation
    Inventors: Che-Wei Tung, Mei-Yi Li, Che-Chia Chang, Yu-Chieh Kuo, Yu-Zuo Lin
  • Publication number: 20230360944
    Abstract: Some implementations described herein provide a deposition tool that includes a grounding component between an edge ring of a substrate stage and a pumping plate component. The grounding component includes a grounding strap having a deformation region. The deformation region includes a recessed edge to reduce a likelihood of the grounding strap rubbing against a surface of the pumping plate component during operation of the deposition tool. Material properties of the grounding strap may reduce a likelihood of plastic deformation of the grounding strap during repeated cycling. In this way, an amount of particulates dislodged from the surface of the pumping plate component may be decreased to improve a yield of semiconductor product fabricated using the deposition tool. Furthermore, a frequency of servicing the grounding component may be decreased to decrease a downtime of the deposition tool and increase a throughput of semiconductor product fabricated using the deposition tool.
    Type: Application
    Filed: May 3, 2022
    Publication date: November 9, 2023
    Inventors: Hsuan-Ying PENG, Chin-Szu LEE, Chiang Hsien SHIH, Chih-Chang WU, Che-Wei TUNG
  • Publication number: 20230019511
    Abstract: A system and method for reducing thermal transfer in a dual ampoule system. The dual ampoule system includes a first ampoule, a second ampoule, and a planar heat shield. The planar heat shield is positioned between the first ampoule and the second ampoule, where the planar heat shield is configured to resist thermal transfer between the first ampoule and the second ampoule.
    Type: Application
    Filed: February 15, 2022
    Publication date: January 19, 2023
    Inventors: Chi-Wen CHIU, Chih-Chang WU, Che-Wei TUNG, Chiang Hsien SHIH, Chin-Szu LEE
  • Patent number: 11501679
    Abstract: A driving circuit includes an S stage register, a first connect line, an (S+A) stage register and a second connect line. The S stage register receives an S stage control signal through a first switch unit and a second switch unit, so that the S stage register performs voltage regulation and outputs an S stage scan signal. The first connect line is electrically connected to the first switch unit of the S stage register. A third switch unit of the (S+A) stage register is electrically connected to the first connect line and a fourth switch unit of the (S+A) stage register for receiving the S stage scan signal, so that The (S+A) stage register performs voltage regulation. The second connect line is electrically connected to the second switch unit of the S stage register and the fourth switch unit of the (S+A) stage register.
    Type: Grant
    Filed: November 10, 2021
    Date of Patent: November 15, 2022
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Wei-Li Lin, Che-Wei Tung
  • Patent number: 11475813
    Abstract: A scan driver circuit including shift register units and gate control circuits is provided. The shift register units are in a peripheral area of a display panel, and for receiving first clock signals. The gate control circuits are in an active area of the display panel, and for receiving second clock signals. Each shift register unit is coupled with corresponding N of the gate control circuits, and for providing a corresponding one of the first clock signals as a control signal to the corresponding N of the gate control circuits. The corresponding N of the gate control circuits are coupled with corresponding M of gate lines. The corresponding N of the gate control circuits are for providing, according to the control signal, corresponding M of the second clock signals as M gate signals to the corresponding M of gate lines, in which M and N are positive integers.
    Type: Grant
    Filed: October 12, 2020
    Date of Patent: October 18, 2022
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Che-Wei Tung, Wei-Li Lin, Yu-Zuo Lin, Chia-Ming Chang
  • Patent number: 11443709
    Abstract: A display panel is provided. The display panel includes a plurality of scan lines and a gate driving circuit. The scan lines are disposed on the display panel along a first direction, and respectively provide a plurality of gate driving signals. The gate driving circuit is disposed on a first side of the display panel along a second direction. The second direction intersects the first direction. The gate driving circuit includes a plurality of bias generators and a plurality of signal output circuits. The signal output circuits are divided into a plurality of groups. The bias generators respectively correspond to the groups. The bias generators generate a plurality of first bias voltages. The groups generate the gate driving signals respectively according to the first bias voltages.
    Type: Grant
    Filed: August 4, 2021
    Date of Patent: September 13, 2022
    Assignee: Au Optronics Corporation
    Inventors: Che-Wei Tung, Wei-Li Lin, Chin-Hsien Chou, Yen-Wei Yeh
  • Publication number: 20220215809
    Abstract: A display panel is provided. The display panel includes a plurality of scan lines and a gate driving circuit. The scan lines are disposed on the display panel along a first direction, and respectively provide a plurality of gate driving signals. The gate driving circuit is disposed on a first side of the display panel along a second direction. The second direction intersects the first direction. The gate driving circuit includes a plurality of bias generators and a plurality of signal output circuits. The signal output circuits are divided into a plurality of groups. The bias generators respectively correspond to the groups. The bias generators generate a plurality of first bias voltages. The groups generate the gate driving signals respectively according to the first bias voltages.
    Type: Application
    Filed: August 4, 2021
    Publication date: July 7, 2022
    Applicant: Au Optronics Corporation
    Inventors: Che-Wei Tung, Wei-Li Lin, Chin-Hsien Chou, Yen-Wei Yeh
  • Patent number: 11361701
    Abstract: The present disclosure relates to a driving circuit including a pulse amplitude modulation (PAM) circuit and a pulse width modulation (PWM) circuit. The PAM circuit includes a first transistor, a first capacitor, and a second transistor. The PWM circuit includes a second capacitor, a third transistor, and a fourth transistor. The first capacitor's first terminal is connected to the first transistor's gate. The second transistor's first terminal is connected to the first capacitor's first terminal, and the second transistor's second terminal is connected to the first transistor's second terminal. The third transistor's gate is connected to the second capacitor's second terminal. The fourth transistor's first terminal is connected to the third transistor's gate, the fourth transistor's second terminal is connected to the third transistor's second terminal, and the fourth transistor's gate is connected to the second transistor's gate and configured to receive a first control signal.
    Type: Grant
    Filed: October 26, 2021
    Date of Patent: June 14, 2022
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Che-Wei Tung, Shang-Jie Wu, Yu-Chieh Kuo, Yu-Hsun Chiu, Che-Chia Chang, Yu-Zuo Lin, Chen-Ying Chou, Yi-Fan Chen
  • Patent number: 11294632
    Abstract: A multiplication accumulating device and a method thereof are provided. The multiplication accumulating device includes a product generator, a plurality of registers, a product reducer, and an adder. The product generator performs a product operation on a multiplicand and a multiplier to generate a product result of 2N?1 columns. The product reducer is used to append data from a portion of the plurality of registers to the columns in the product result to generate an appending result of 2N?1 columns. The product reducer performs a reduction operation on the appending result according to a column height of each column in the appending result to obtain a reduced result. The product reducer renews the data in the plurality of registers according to the reduced result. The adder adds the data in the plurality of registers according to an accumulation signal to generate a multiplication accumulating operation result.
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: April 5, 2022
    Assignee: Chung Yuan Christian University
    Inventors: Shih-Hsu Huang, Che-Wei Tung
  • Publication number: 20220068183
    Abstract: A driving circuit includes an S stage register, a first connect line, an (S+A) stage register and a second connect line. The S stage register receives an S stage control signal through a first switch unit and a second switch unit, so that the S stage register performs voltage regulation and outputs an S stage scan signal. The first connect line is electrically connected to the first switch unit of the S stage register. A third switch unit of the (S+A) stage register is electrically connected to the first connect line and a fourth switch unit of the (S+A) stage register for receiving the S stage scan signal, so that The (S+A) stage register performs voltage regulation. The second connect line is electrically connected to the second switch unit of the S stage register and the fourth switch unit of the (S+A) stage register.
    Type: Application
    Filed: November 10, 2021
    Publication date: March 3, 2022
    Inventors: Wei-Li LIN, Che-Wei TUNG
  • Patent number: 11250754
    Abstract: A driving circuit includes a S stage register, a first connect line, a (S+A) stage register and a second connect line. The S stage register receives a S stage control signal through a first switch unit and a second switch unit, so that the S stage register performs voltage regulation and outputs a S stage scan signal. The first connect line is electrically connected to the first switch unit of the S stage register. A third switch unit of the (S+A) stage register is electrically connected to the first connect line and a fourth switch unit of the (S+A) stage register for receiving the S stage scan signal, so that The (S+A) stage register performs voltage regulation. The second connect line is electrically connected to the second switch unit of the S stage register and the fourth switch unit of the (S+A) stage register.
    Type: Grant
    Filed: July 29, 2020
    Date of Patent: February 15, 2022
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Wei-Li Lin, Che-Wei Tung
  • Publication number: 20210225240
    Abstract: A scan driver circuit including shift register units and gate control circuits is provided. The shift register units are in a peripheral area of a display panel, and for receiving first clock signals. The gate control circuits are in an active area of the display panel, and for receiving second clock signals. Each shift register unit is coupled with corresponding N of the gate control circuits, and for providing a corresponding one of the first clock signals as a control signal to the corresponding N of the gate control circuits. The corresponding N of the gate control circuits are coupled with corresponding M of gate lines. The corresponding N of the gate control circuits are for providing, according to the control signal, corresponding M of the second clock signals as M gate signals to the corresponding M of gate lines, in which M and N are positive integers.
    Type: Application
    Filed: October 12, 2020
    Publication date: July 22, 2021
    Inventors: Che-Wei TUNG, Wei-Li LIN, Yu-Zuo LIN, Chia-Ming CHANG
  • Publication number: 20210174720
    Abstract: A driving circuit includes a S stage register, a first connect line, a (S+A) stage register and a second connect line. The S stage register receives a S stage control signal through a first switch unit and a second switch unit, so that the S stage register performs voltage regulation and outputs a S stage scan signal. The first connect line is electrically connected to the first switch unit of the S stage register. A third switch unit of the (S+A) stage register is electrically connected to the first connect line and a fourth switch unit of the (S+A) stage register for receiving the S stage scan signal, so that The (S+A) stage register performs voltage regulation. The second connect line is electrically connected to the second switch unit of the S stage register and the fourth switch unit of the (S+A) stage register.
    Type: Application
    Filed: July 29, 2020
    Publication date: June 10, 2021
    Inventors: Wei-Li LIN, Che-Wei TUNG
  • Publication number: 20210096818
    Abstract: A multiplication accumulating device and a method thereof are provided. The multiplication accumulating device includes a product generator, a plurality of registers, a product reducer, and an adder. The product generator performs a product operation on a multiplicand and a multiplier to generate a product result of 2N?1 columns. The product reducer is used to append data from a portion of the plurality of registers to the columns in the product result to generate an appending result of 2N?1 columns. The product reducer performs a reduction operation on the appending result according to a column height of each column in the appending result to obtain a reduced result. The product reducer renews the data in the plurality of registers according to the reduced result. The adder adds the data in the plurality of registers according to an accumulation signal to generate a multiplication accumulating operation result.
    Type: Application
    Filed: April 29, 2020
    Publication date: April 1, 2021
    Applicant: Chung Yuan Christian University
    Inventors: Shih-Hsu Huang, Che-Wei Tung
  • Patent number: 10784288
    Abstract: A display panel has a display region, an external circuit region located at an edge of the display panel, and a first and second wiring regions. The first wiring region is located between the second wiring region and the external circuit region. The display panel includes a pixel array, gate driving circuit groups disposed between the second wiring region and the display region, first signal line groups extended from the external circuit region to the first and second wiring region, and second signal line groups extended from the second wiring region and connected to the corresponding gate driving circuit groups. In the second wiring region, a first portion of the first signal line groups overlapped with the second signal line groups has a first width, and a second portion thereof not overlapped with the second signal line groups has a third width which is larger than the first width.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: September 22, 2020
    Assignee: Au Optronics Corporation
    Inventors: Che-Wei Tung, Wei-Li Lin, Keng-Chuan Cheng
  • Publication number: 20190393246
    Abstract: A display panel has a display region, an external circuit region located at an edge of the display panel, and a first and second wiring regions. The first wiring region is located between the second wiring region and the external circuit region. The display panel includes a pixel array, gate driving circuit groups disposed between the second wiring region and the display region, first signal line groups extended from the external circuit region to the first and second wiring region, and second signal line groups extended from the second wiring region and connected to the corresponding gate driving circuit groups. In the second wiring region, a first portion of the first signal line groups overlapped with the second signal line groups has a first width, and a second portion thereof not overlapped with the second signal line groups has a third width which is larger than the first width.
    Type: Application
    Filed: November 16, 2018
    Publication date: December 26, 2019
    Applicant: Au Optronics Corporation
    Inventors: Che-Wei Tung, Wei-Li Lin, Keng-Chuan Cheng
  • Patent number: 10269289
    Abstract: A shift register includes a control circuit, a switching circuit, a driving circuit, and a pull-down circuit. The control circuit is configured to output a control signal having a high level during a pull-up period and a voltage-regulating period respectively. The switching circuit is configured to provide a control voltage according to the control signal and a front stage signal outputted by a front x-stage shift register during the pull-up period. The driving circuit is configured to generate a driving signal according to the control voltage provided by the switching circuit, and output a home stage scan signal based on the driving signal. The pull-down circuit is configured to pull down a voltage level of the driving signal according to a scan signal outputted by a rear y-stage shift register during a pull-down period. The switching circuit is configured to regulate the driving signal and the home stage scan signal.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: April 23, 2019
    Assignee: AU OPTRONICS CORP.
    Inventors: Wei-Li Lin, Che-Wei Tung, Yan-Ting Chen
  • Publication number: 20180090097
    Abstract: A signal generating circuit that includes a timing controller and a level shifter is provided. The level shifter is electrically connected to the timing controller. The timing controller generates a clock signal and a control signal. The level shifter receives the clock signal and the control signal. The level shifter outputs a high level signal during a positive half period of a period according to the clock signal and the control signal and partially increases the high level signal, and then the level shifter outputs a low level signal during a negative half period of the period according to the clock signal and the control signal and partially decreases the low level signal.
    Type: Application
    Filed: April 7, 2017
    Publication date: March 29, 2018
    Inventors: Che-Wei TUNG, Wei-Li LIN
  • Patent number: 9711079
    Abstract: A shift register includes a first voltage stabilizing unit, a second voltage stabilizing unit, a main pull-down unit and a main pull-up unit. The first voltage stabilizing unit is used to pull a first driving control signal to a low voltage terminal when a first stabilizing control signal is high. The second voltage stabilizing unit is used to pull the first driving control signal to the low voltage terminal when a second stabilizing control signal is high. The main pull-down unit includes a first sub-pull-down unit controlled by a second gate-terminal signal for pulling down the first driving control signal to the low voltage terminal during a first display mode, and a second sub-pull-down unit controlled by a third gate-terminal signal for pulling down the first driving control signal to the low voltage terminal during a second display mode. The main pull-up unit is used for pulling up a first gate-terminal signal.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: July 18, 2017
    Assignee: AU OPTRONICS CORP.
    Inventors: Wei-Li Lin, Che-Wei Tung, Chia-Heng Chen
  • Publication number: 20170186361
    Abstract: A shift register includes a control circuit, a switching circuit, a driving circuit, and a pull-down circuit. The control circuit is configured to output a control signal having a high level during a pull-up period and a voltage-regulating period respectively. The switching circuit is configured to provide a control voltage according to the control signal and a front stage signal outputted by a front x-stage shift register during the pull-up period. The driving circuit is configured to generate a driving signal according to the control voltage provided by the switching circuit, and output a home stage scan signal based on the driving signal. The pull-down circuit is configured to pull down a voltage level of the driving signal according to a scan signal outputted by a rear y-stage shift register during a pull-down period. The switching circuit is configured to regulate the driving signal and the home stage scan signal.
    Type: Application
    Filed: December 12, 2016
    Publication date: June 29, 2017
    Inventors: Wei-Li LIN, Che-Wei Tung, Yan-Ting Chen