Patents by Inventor PENG BO XI

PENG BO XI 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).

  • Publication number: 20230267874
    Abstract: A display device comprising a plurality of ordinary pixels, an auxiliary pixel, a frame and a driving chip is provided. The auxiliary pixel includes a plurality of first color sub-pixels. The frame is configured to define an active area in a non-rectangular shape. The plurality of ordinary pixels and the auxiliary pixel are arranged in the active area. The driving chip is configured to receive display data, wherein the display data includes a first color grayscale value configured to assign first target luminance of first color light of the auxiliary pixel. The driving chip is configured to generate one or more processed first color grayscale values configured to assign the luminance of the plurality of first color sub-pixels, according to the first color grayscale value, and the sum of the luminance of the plurality of first color sub-pixels is substantially equal to the first target luminance.
    Type: Application
    Filed: November 16, 2022
    Publication date: August 24, 2023
    Inventors: Ya-Ling HSU, Peng-Bo XI
  • Patent number: 11663963
    Abstract: A pixel circuit includes a light emitting element, a first local light emitting switch, a second local light emitting switch, a common light emitting switch, and a driving block. The light emitting element has a first light emitting part and a second light emitting part. The first local light emitting switch is coupled between a first power terminal and the driving block. The second local light emitting switch is coupled between a second power terminal and the driving block. The common light emitting switch is coupled between the driving block and the light emitting element. The driving block provides a first driving current and a second driving current to the first light emitting part and the second light emitting part respectively based on a first frame gate signal and a second frame gate signal; a direction of the first driving current is different from that of the second driving current.
    Type: Grant
    Filed: August 3, 2022
    Date of Patent: May 30, 2023
    Assignee: AUO Corporation
    Inventors: Ya-Ling Hsu, Peng-Bo Xi
  • Publication number: 20220336544
    Abstract: In one embodiment, a display includes alternating first and second pixel types. The first pixel type may include a first sub-pixel to emit neutral light (e.g., substantially white light), a second sub-pixel to emit a first color (e.g., substantially green) light, and a third sub-pixel to emit a second (e.g., substantially red) light. The second pixel type may include a first sub-pixel to emit neutral (e.g., substantially white) light, a second sub-pixel to emit a third (e.g., substantially blue) light, and a third sub-pixel to emit the second (e.g., substantially red) light.
    Type: Application
    Filed: July 1, 2022
    Publication date: October 20, 2022
    Inventors: Peng-Bo Xi, Yi-chuan Liu, Jackson Tsai
  • Patent number: 11455953
    Abstract: A display device includes pixel driving circuits. A first pixel driving circuit includes a light emitting element, first and second driving units and a control unit. The light emitting element emits light according to a current. The first driving unit generates the current. The second driving unit drives the first driving unit to adjust the current according to a first scanning signal. The control unit controls the first driving unit to adjust the current according to a first light emitting signal. The first scanning signal has first slope to third slopes during first to third periods, respectively. The first to third slopes are different from each other. The first light emitting signal has an enable voltage level during the first and third periods, and has a disable voltage level during the second period. The first to third periods are arranged continuously in order.
    Type: Grant
    Filed: October 29, 2021
    Date of Patent: September 27, 2022
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Peng-Bo Xi, Chen-Chi Lin
  • Patent number: 11444107
    Abstract: A manufacturing method of a display panel includes providing a substrate having a first surface and a second surface opposite to the first surface; forming a high-shielding position layer on the first surface, wherein the light-shielding positioning layer has at least one first alignment pattern; forming a transparent material layer on the second surface; forming a photoresist layer on the transparent material layer; performing an exposure process, such that a light beam passes through the at least one first alignment pattern to penetrate through the substrate and the transparent material layer to the photoresist layer; performing a developing process to pattern the photoresist layer and form a patterned photoresist layer; and performing an etching process to pattern the transparent positioning layer having at least one second alignment pattern. In a direction perpendicular to the substrate, at least one first alignment pattern overlaps with at least one second alignment pattern.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: September 13, 2022
    Assignee: AU Optronics Corporation
    Inventors: Peng-Bo Xi, Chun-Cheng Cheng
  • Patent number: 11444120
    Abstract: A display apparatus including at least one display panel is provided. The display panel includes a substrate, pad structures, and openings. The substrate has a first and second surface opposite to each other. The pad structures are disposed on the first surface of the substrate. Each pad structure has a connection pad, a conductive pattern layer, and an auxiliary conductive layer electrically connected to each other. The auxiliary conductive layer is overlapped with the conductive pattern layer and the connection pad along a normal direction of the first surface. The openings are disposed on the substrate and penetrate the first and second surfaces of the substrate. The openings and the pad structures are alternately arranged. The substrate also has a third surface defining each opening and connected to the first and second surfaces. The third surface is not conductive. A method of fabricating the display apparatus is also provided.
    Type: Grant
    Filed: October 26, 2020
    Date of Patent: September 13, 2022
    Assignee: Au Optronics Corporation
    Inventors: Peng-Bo Xi, Chun-Cheng Cheng
  • Patent number: 11403993
    Abstract: A light-emitting diode display device and a light-emission control method thereof are provided. The light-emitting diode display device includes a timing controller, multiple display pixels, and a scanning circuit. The display pixels form multiple display rows. The scanning circuit generates multiple scan signals and multiple light-emission signals that respectively drive the display rows. During a first data-writing time period of a first frame period, the timing controller provides multiple writing data to be respectively written into the display rows. During a light-emitting time period, the scanning circuit drives each of the light-emission signals to generate multiple pulses periodically according to a set period to drive the corresponding display rows. The light-emitting time period is after the first data-writing time period and before a second data-writing time period of a second frame period ends.
    Type: Grant
    Filed: March 3, 2021
    Date of Patent: August 2, 2022
    Assignee: Au Optronics Corporation
    Inventors: Yu-Chieh Kuo, Yu-Hsun Chiu, Kai-Hsiang Liu, Che-Chia Chang, Shang-Jie Wu, Mei-Yi Li, Peng-Bo Xi, Chin I Chiang, Yan-Ru Chen, Ting-Wei Guo, Chia-Ting Hsieh
  • Publication number: 20220223102
    Abstract: Apparatus, methods, and articles of manufacture for a micro-LED display are disclosed. An example apparatus for a micro-LED display includes a substrate, a micro-LED matrix on a first side of the substrate, a driver circuit on a second side of the substrate, the second side opposite the first side, and a conductive path in the substrate to extend between the first side and the second side to electrically couple the micro-LED matrix to the driver circuit.
    Type: Application
    Filed: March 31, 2022
    Publication date: July 14, 2022
    Inventors: Peng-Bo Xi, Yi-Chuan Liu, Jackson Tsai
  • Publication number: 20220223103
    Abstract: Methods, apparatus, and articles of manufacture to control a micro-LED display are disclosed. An example apparatus for a micro-LED display, the apparatus includes a micro-LED matrix, a first driver circuit electrically coupled to micro-LEDs of the micro-LED matrix, a second driver circuit electrically coupled to the first driver circuit, the second driver circuit to provide at least (a) a scan signal and (b) a pulse width modulation (PWM) signal to the first driver circuit, the first driver circuit to drive the micro-LEDs based on the scan signal and the PWM signal.
    Type: Application
    Filed: April 1, 2022
    Publication date: July 14, 2022
    Inventors: Peng-Bo Xi, Yi-Chuan Liu, Jackson Tsai
  • Publication number: 20220059014
    Abstract: A light-emitting diode display device and a light-emission control method thereof are provided. The light-emitting diode display device includes a timing controller, multiple display pixels, and a scanning circuit. The display pixels form multiple display rows. The scanning circuit generates multiple scan signals and multiple light-emission signals that respectively drive the display rows. During a first data-writing time period of a first frame period, the timing controller provides multiple writing data to be respectively written into the display rows. During a light-emitting time period, the scanning circuit drives each of the light-emission signals to generate multiple pulses periodically according to a set period to drive the corresponding display rows. The light-emitting time period is after the first data-writing time period and before a second data-writing time period of a second frame period ends.
    Type: Application
    Filed: March 3, 2021
    Publication date: February 24, 2022
    Applicant: Au Optronics Corporation
    Inventors: Yu-Chieh Kuo, Yu-Hsun Chiu, Kai-Hsiang Liu, Che-Chia Chang, Shang-Jie Wu, Mei-Yi Li, Peng-Bo Xi, Chin I Chiang, Yan-Ru Chen, Ting-Wei Guo, Chia-Ting Hsieh
  • Patent number: 11244617
    Abstract: A driving method applicable to a display device, in which the display device includes multiple pixel circuits, and the method includes: adjusting multiple control signals according to a first display data such that the pixel circuits generate a first frame; receiving a second display data generated after the display data; and adjusting the control signals according to a time duration of the first frame such that the pixel circuits generate a second frame, where brightness for each of the pixel circuits is proportional to a duty ratio of one of the corresponding control signals, and an increment for the duty ratio of one of the corresponding control signals in the second frame is negatively correlated to a difference between a ratio of a preset time period to the time duration of the first frame and a ratio of the preset time period to the time duration of the second frame.
    Type: Grant
    Filed: March 29, 2021
    Date of Patent: February 8, 2022
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Peng-Bo Xi, Chen-Chi Lin, Chia-Che Hung, Cheng-Nan Yeh, Chin-Tang Chuang, En-Chih Liu
  • Patent number: 11227539
    Abstract: A display apparatus and a pixel circuit thereof are provided. The pixel circuit is configured to drive a light-emitting diode (LED). The pixel circuit includes a driving transistor, a switch, a data writing circuit, and a voltage selector. The switch is turned on during a data-writing time period, and cut-off during a laser time period. The data writing circuit transports a data voltage to a control terminal of the driving transistor during the data-writing time period. During the data-writing time period, a second terminal of the LED receives a first reference voltage, and during the laser time period, the second terminal of the LED receives a second reference voltage. The first reference voltage and the second reference voltage are different.
    Type: Grant
    Filed: November 8, 2020
    Date of Patent: January 18, 2022
    Assignee: Au Optronics Corporation
    Inventors: Peng-Bo Xi, Yan-Ru Chen
  • Patent number: 11217606
    Abstract: A device substrate comprising a substrate, a first pad, a second pad, a plurality of first power lines, a plurality of second power lines, and a plurality of control units is provided. The first pad is disposed on the first side of the device substrate. The second pad is disposed on the second side of the device substrate. The second side is opposite the first side. The first power lines are electrically connected to the first pad. The second power lines are electrically connected to the second pad. The control unit is electrically connected to at least one of the first power line and the second power line. The first pad does not overlap the second pad in a first direction perpendicular to the first side or in a second direction perpendicular to the second side. A display panel is also provided. A tiled display is also provided.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: January 4, 2022
    Assignee: Au Optronics Corporation
    Inventors: Chen-Chi Lin, Peng-Bo Xi, Chia-Che Hung
  • Publication number: 20210390900
    Abstract: A display apparatus and a pixel circuit thereof are provided. The pixel circuit is configured to drive a light-emitting diode (LED). The pixel circuit includes a driving transistor, a switch, a data writing circuit, and a voltage selector. The switch is turned on during a data-writing time period, and cut-off during a laser time period. The data writing circuit transports a data voltage to a control terminal of the driving transistor during the data-writing time period. During the data-writing time period, a second terminal of the LED receives a first reference voltage, and during the laser time period, the second terminal of the LED receives a second reference voltage. The first reference voltage and the second reference voltage are different.
    Type: Application
    Filed: November 8, 2020
    Publication date: December 16, 2021
    Applicant: Au Optronics Corporation
    Inventors: Peng-Bo Xi, Yan-Ru Chen
  • Patent number: 11132941
    Abstract: A display panel and a pixel circuit of the display panel are provided. The pixel circuit includes a driving transistor and a light-emitting time length modulator. The driving transistor has a control terminal receiving a pulse width control signal and an amplitude control signal, and the driving transistor generates a driving signal. In a first time period, the light-emitting time length modulator modulates a time length of a plurality of second time periods for providing the driving signal to a light-emitting device according to a light-emitting time control signal.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: September 28, 2021
    Assignee: Au Optronics Corporation
    Inventors: Peng-Bo Xi, Chen-Chi Lin, Yan-Ru Chen, Cheng-Nan Yeh, Sheng-Yu Hsu, Chia-Che Hung, En-Chih Liu
  • Patent number: 11094621
    Abstract: A display panel includes a substrate having an active zone, a pad zone, an external component zone, and a fan-out zone, a plurality of light-emitting elements disposed in the active zone, and a plurality of wire structures. The wire structures include a first wire structure and a second wire structure. The first wire structure includes a plurality of first inner connecting ends, a plurality of first outer connecting ends, and a first body. The second wire structure includes a plurality of second inner connecting ends, a plurality of second outer connecting ends, and a second body. The first wire structure has a first current A1, the second wire structure has a second current A2, and A1>A2. A number of the first inner connecting ends of the first wire structure is N1, a number of the second inner connecting ends of the second wire structure is N2, and N1>N2.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: August 17, 2021
    Assignee: Au Optronics Corporation
    Inventor: Peng-Bo Xi
  • Patent number: 11081046
    Abstract: A display device including a driving chip and a pixel array is provided. The driving chip is configured to provide multiple emission control signals according to a data input. A pixel array is coupled with the driving chip. M pixel circuits of the pixel array are configured to emit light respectively in M periods, and M is a positive integer. In a corresponding period of the M periods, the driving chip determines a first time length which one of the multiple emission control signals has a first voltage level, and one of the M pixel circuits emits light, in the corresponding period, for a light emission time length corresponding to the first time length.
    Type: Grant
    Filed: July 6, 2020
    Date of Patent: August 3, 2021
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Peng-Bo Xi, Chen-Chi Lin, Cheng-Nan Yeh
  • Publication number: 20210217806
    Abstract: A display apparatus including at least one display panel is provided. The display panel includes a substrate, pad structures, and openings. The substrate has a first and second surface opposite to each other. The pad structures are disposed on the first surface of the substrate. Each pad structure has a connection pad, a conductive pattern layer, and an auxiliary conductive layer electrically connected to each other. The auxiliary conductive layer is overlapped with the conductive pattern layer and the connection pad along a normal direction of the first surface. The openings are disposed on the substrate and penetrate the first and second surfaces of the substrate. The openings and the pad structures are alternately arranged. The substrate also has a third surface defining each opening and connected to the first and second surfaces. The third surface is not conductive. A method of fabricating the display apparatus is also provided.
    Type: Application
    Filed: October 26, 2020
    Publication date: July 15, 2021
    Applicant: Au Optronics Corporation
    Inventors: Peng-Bo Xi, Chun-Cheng Cheng
  • Publication number: 20210193026
    Abstract: A display panel and a pixel circuit of the display panel are provided. The pixel circuit includes a driving transistor and a light-emitting time length modulator. The driving transistor has a control terminal receiving a pulse width control signal and an amplitude control signal, and the driving transistor generates a driving signal. In a first time period, the light-emitting time length modulator modulates a time length of a plurality of second time periods for providing the driving signal to a light-emitting device according to a light-emitting time control signal.
    Type: Application
    Filed: September 10, 2020
    Publication date: June 24, 2021
    Applicant: Au Optronics Corporation
    Inventors: Peng-Bo Xi, Chen-Chi Lin, Yan-Ru Chen, Cheng-Nan Yeh, Sheng-Yu Hsu, Chia-Che Hung, En-Chih Liu
  • Patent number: 10971093
    Abstract: A pixel circuit includes a storage capacitor, a first switch, and a second switch. The first switch is electrically connected to a first end of the storage capacitor, and configured to provide a data voltage to the first end of the storage capacitor according to a gate signal. The second switch is electrically connected between the first end of the storage capacitor and a second end of the storage capacitor, and configured to receive a first operating voltage from the second end of the storage capacitor and provide the first operating voltage to the first end of the storage capacitor.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: April 6, 2021
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Peng-Bo Xi, Sung-Yu Su, Chen-Feng Fan, Wan-Heng Chang