Patents by Inventor Po-Lun Chen

Po-Lun Chen 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: 8289485
    Abstract: A liquid crystal display panel including several first electrode portions, several second electrode portions, and a smectic liquid crystal layer is provided. The first electrode portions and the second electrode portions are disposed on a first substrate. When an AC voltage is applied on the first electrode portions and the second electrode portions, the direction of a horizontal electrical field formed between each first electrode portion and the adjacent second electrode portion is parallel to the surface of the first substrate. The smectic liquid crystal layer is interposed between the first substrate and a second substrate. During the phase change of a liquid crystal molecule of the smectic liquid crystal layer, the horizontal electrical field generated by applying the AC voltage on the first electrode portions and the second electrode portions facilitates the alignment of the liquid crystal molecule of the smectic liquid crystal layer.
    Type: Grant
    Filed: October 14, 2009
    Date of Patent: October 16, 2012
    Assignee: AU Optronics Corp.
    Inventors: Tzu-Yuan Lin, Po-Kai Liu, Ren-Hung Huang, Po-Chang Wu, Fu-Cheng Sie, Chun-Hung Chiang, Shune-Long Wu, Jin-Jei Wu, Po-Lun Chen
  • Patent number: 8264641
    Abstract: An optical compensated bend (OCB) mode liquid crystal display (LCD) includes a pixel electrode, a color filter, a common electrode and a liquid crystal layer. The pixel electrode is formed on the first substrate of the OCB mode LCD. The color filter is formed on the second substrate of the OCB mode LCD. The common electrode is formed on the color filter. The liquid crystal layer is sandwiched between the first substrate and the second substrate. A step structure is formed on the second structure, so that the liquid crystal molecules in the liquid crystal layer are twisted into the bend state from the splay state uniformly and quickly.
    Type: Grant
    Filed: October 15, 2008
    Date of Patent: September 11, 2012
    Assignee: AU Optronics Corp.
    Inventors: Chia-Yu Lee, Ting-Jui Chang, Po-Lun Chen, Jeng-Fang Wu
  • Publication number: 20120205646
    Abstract: A display with a photo sensor is provided, wherein the photo sensor is integrated with an active device array substrate of the display and fabricated through an existing process to reduce the manufacturing cost. A photosensitive silicon-rich dielectric layer or any other photosensitive material layer having similar photosensitive characteristics (for example, a photosensitive semiconductor layer) is adopted to form the photo sensor with a lower electrode and a transparent upper electrode. Thereby, the fill factor of the photo sensor is maximized and noises caused by a backlight source electrode are eliminated.
    Type: Application
    Filed: July 7, 2011
    Publication date: August 16, 2012
    Applicant: AU OPTRONICS CORPORATION
    Inventors: An-Thung Cho, Wei-Ting Lin, Jiun-Jye Chang, Tien-Hao Chang, Po-Lun Chen, Wei-Lung Liao
  • Patent number: 8223100
    Abstract: A pixel structure, disposed on a first substrate, and electrically coupled to at least one scan line and at least one data line is provided. The pixel structure includes a first switch device, a second switch device, at least one pixel electrode, at least one control electrode, and at least one coupling electrode. The first switch device is electrically coupled to the scan line and the data line. The second switch device is electrically coupled to the scan line and the data line. The pixel electrode is electrically coupled to the second switch device. The control electrode is electrically coupled to the first switch element. The coupling electrode is disposed under the control electrode.
    Type: Grant
    Filed: September 3, 2008
    Date of Patent: July 17, 2012
    Assignee: Au Optronics Corp.
    Inventors: Jenn-Jia Su, Ming-Feng Tien, Chia-Jung Yang, Ting-Jui Chang, Po-Lun Chen
  • Patent number: 8218113
    Abstract: A pixel structure of a display including a first substrate, a second substrate, and a liquid crystal (LC) layer disposed therebetween. The pixel structure comprises a plurality of first, second, and third sub-pixels; a plurality of alignment controlling patterns, respectively formed in the first, second and third sub-pixels for controlling alignment direction of LC molecules of the LC layer; a plurality of opaque regions, respectively formed in the first, second, and third sub-pixels, and substantially aligned with the portion of the alignment controlling patterns, so that the alignment controlling patterns are shielded by the substantially corresponded opaque regions having different areas in at least two of the colored sub-pixels.
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: July 10, 2012
    Assignee: AU Optronics Corp.
    Inventors: Ming-Feng Tien, Kun-Yu Lin, Po-Lun Chen
  • Publication number: 20120162181
    Abstract: A display panel, a pixel circuit and a driving method of a differential voltage driving device are disclosed. The driving method includes: respectively supplying an alternating common voltage in a first polarity and a first display data in a second polarity to two terminals of the differential voltage driven device in a first frame; disconnecting the differential voltage driven device from the alternating common voltage, thereby keeping one terminal of the differential voltage driving device at the first polarity of the alternating common voltage; converting the alternating common voltage to the second polarity in a second frame which is consecutive to the first frame; and respectively supplying the alternating common voltage in the second polarity and a second display data in the first polarity to the two terminals of the differential voltage driving device in the second frame, here the first polarity is inverse to the second polarity.
    Type: Application
    Filed: July 27, 2011
    Publication date: June 28, 2012
    Applicant: AU OPTRONICS CORP.
    Inventors: Young-Ran CHUANG, Wen-Bin Lo, Wei-Jhih Lian, Cheng-Yeh Tsai, Tai-Hsiang Huang, Po-Lun Chen
  • Publication number: 20120129286
    Abstract: A pixel structure of a display including a first substrate, a second substrate, and a liquid crystal (LC) layer disposed therebetween. The pixel structure comprises a plurality of first, second, and third sub-pixels; a plurality of alignment controlling patterns, respectively formed in the first, second and third sub-pixels for controlling alignment direction of LC molecules of the LC layer; a plurality of opaque regions, respectively formed in the first, second, and third sub-pixels, and substantially aligned with the portion of the alignment controlling patterns, so that the alignment controlling patterns are shielded by the substantially corresponded opaque regions having different areas in at least two of the colored sub-pixels.
    Type: Application
    Filed: January 27, 2012
    Publication date: May 24, 2012
    Applicant: AU OPTRONICS CORP.
    Inventors: Ming-Feng Tien, Kun-Yu Lin, Po-Lun Chen
  • Patent number: 8179485
    Abstract: A liquid crystal display device includes a first substrate, a second substrate, a first vertical electrode, a second vertical electrode, a first pixel electrode, a first counter electrode, and a liquid crystal layer. The second substrate is disposed to be opposite to the first substrate, the liquid crystal layer is interposed between the first and second substrates. The liquid crystal layer includes polymer stabilized positive blue phase liquid crystal. The first vertical electrode is at an inner side of the first substrate, and faces the second substrate. The second vertical electrode is at an inner side surface of the second substrate and faces the first vertical electrode. The second vertical electrode and the first vertical electrode have different electrical potentials thus form a vertical electric field perpendicular to the first substrate and the second substrate. The first pixel electrode is at the inner side of the first substrate and faces the second substrate.
    Type: Grant
    Filed: May 5, 2010
    Date of Patent: May 15, 2012
    Assignee: AU Optronics Corp.
    Inventors: Cheng-Yeh Tsai, Tai-Hsiang Huang, Po-Lun Chen
  • Publication number: 20120105780
    Abstract: The present invention provides a liquid crystal display integrated with a solar cell module, which includes a first transparent substrate, a second transparent substrate, a cholesteric liquid crystal layer, a third transparent substrate, and a photoelectric conversion layer. The second transparent substrate is disposed on a side of the first transparent substrate, and the cholesteric liquid crystal layer is disposed between the first transparent substrate and the second transparent substrate. The third transparent substrate is disposed on the other side of the first transparent substrate opposite to the second transparent substrate, and the photoelectric conversion layer is adhered between the first transparent substrate and the third transparent substrate. The first transparent substrate, the photoelectric conversion layer and the third transparent substrate constitute the solar cell module.
    Type: Application
    Filed: July 11, 2011
    Publication date: May 3, 2012
    Inventors: Ren-Hong Jhan, Chun-Hao Tu, Kuo-Sen Kung, Wei-Jhih Lian, Yu-Jung Liu, Jiun-Jye Chang, Po-Lun Chen, Shui-Chih Lien
  • Publication number: 20120105401
    Abstract: An electronic device including a display unit and a photoelectric conversion board is provided. The display unit includes a display surface and a back surface which are opposite to each other, and an edge of the photoelectric conversion board is rotatably connected to the back surface of the display unit. The photoelectric conversion board includes a substrate, a first photoelectric conversion unit, and a second photoelectric conversion unit. The substrate has a first surface and a second surface which are opposite to each other, the first photoelectric conversion unit is disposed on the first surface, the second photoelectric conversion unit is disposed on the second surface, and an absorption band of the first photoelectric conversion unit is different from an absorption band of the second photoelectric conversion unit.
    Type: Application
    Filed: February 18, 2011
    Publication date: May 3, 2012
    Applicant: AU OPTRONICS CORPORATION
    Inventors: Chun-Hao Tu, Kuo-Sen Kung, Jun-Hong Jan, Wei-Jhih Lian, Yu-Jung Liu, Fang-Hui Chan, Jiun-Jye Chang, Po-Lun Chen
  • Publication number: 20120080951
    Abstract: A power source circuit includes a power source detection unit, a control unit and a switch unit. The power source detection unit detects whether a plurality of power sources including a green power source is supplied to the power source circuit, and detects and outputting a power value of the green power source. In addition, the control unit is electrically coupled to the power source detection unit and a load, and the control unit further detects a power consumption value of the load, to generate a switch signal to the switch unit according to the power consumption value of the load and a result detected by the power source detection unit. Therefore, the switch unit selects the green power source and at least one of other power sources thereof to supply electric power to the load when necessary.
    Type: Application
    Filed: August 9, 2011
    Publication date: April 5, 2012
    Applicant: AU OPTRONICS CORP.
    Inventors: Kuo-Sen KUNG, Chun-Hao TU, Ren-Hong JHAN, Wei-Jhih LIAN, Yu-Jung LIU, Jiun-Jye CHANG, Po-Lun CHEN
  • Publication number: 20120061661
    Abstract: A semiconductor structure and a fabricating method thereof are provided. The fabricating method includes forming a gate, a source, and a drain on a substrate and forming an oxide semiconductor material between the gate and the source and drain. The oxide semiconductor material is formed by performing a deposition process, and nitrogen gas is introduced before the deposition process is completely performed, so as to form oxide semiconductor nitride on the oxide semiconductor material.
    Type: Application
    Filed: April 18, 2011
    Publication date: March 15, 2012
    Applicant: AU OPTRONICS CORPORATION
    Inventors: Po-Tsun Liu, Yi-Teh Chou, Li-Feng Teng, Fu-Hai Li, Han-Ping D. Shieh, Wei-Ting Lin, Ming-Chin Hung, Chun-Ching Hsiao, Jiun-Jye Chang, Po-Lun Chen
  • Patent number: 8130346
    Abstract: A pixel structure of a display including a first substrate, a second substrate, and a liquid crystal (LC) layer disposed therebetween. The pixel structure comprises a plurality of first, second, and third sub-pixels; a plurality of alignment controlling patterns, respectively formed in the first, second and third sub-pixels for controlling alignment direction of LC molecules of the LC layer; a plurality of opaque regions, respectively formed in the first, second, and third sub-pixels, and substantially aligned with the portion of the alignment controlling patterns, so that the alignment controlling patterns are shielded by the substantially corresponded opaque regions having different areas in at least two of the colored sub-pixels.
    Type: Grant
    Filed: May 17, 2007
    Date of Patent: March 6, 2012
    Assignee: AU Optronics Corp.
    Inventors: Ming-Feng Tien, Kun-Yu Lin, Po-Lun Chen
  • Publication number: 20110298718
    Abstract: A touch-sensing keyboard including a solar cell, a touch panel, and a power converter is provided. The solar cell has a light receiving surface. The touch panel is disposed above the light receiving surface of the solar cell, wherein the solar cell receives light passing through the touch panel and converts the received light into electric power. Furthermore, the power converter is electrically connected to the solar cell and the touch panel, wherein the power converter receives and transforms the electric power generated from the solar cell and outputs the transformed electric power to the touch panel.
    Type: Application
    Filed: September 17, 2010
    Publication date: December 8, 2011
    Applicant: AU OPTRONICS CORPORATION
    Inventors: Wei-Hong Chang, Robin Lo, Po-Lun Chen
  • Publication number: 20110273638
    Abstract: A liquid crystal display device includes a first substrate, a second substrate, a first vertical electrode, a second vertical electrode, a first pixel electrode, a first counter electrode, and a liquid crystal layer. The second substrate is disposed to be opposite to the first substrate, the liquid crystal layer is interposed between the first and second substrates. The liquid crystal layer includes polymer stabilized positive blue phase liquid crystal. The first vertical electrode is at an inner side of the first substrate, and faces the second substrate. The second vertical electrode is at an inner side surface of the second substrate and faces the first vertical electrode. The second vertical electrode and the first vertical electrode have different electrical potentials thus form a vertical electric field perpendicular to the first substrate and the second substrate. The first pixel electrode is at the inner side of the first substrate and faces the second substrate.
    Type: Application
    Filed: May 5, 2010
    Publication date: November 10, 2011
    Inventors: Cheng-Yeh TSAI, Tai-Hsiang Huang, Po-Lun Chen
  • Publication number: 20110261306
    Abstract: A method for fabricating a blue phase liquid crystal display is provided. A first substrate is arranged opposite to a second substrate, in which the first and second substrates include a first and a second electrode, respectively. A blue phase liquid crystal layer is sealed between the first substrate and the second substrate, in which the blue phase liquid crystal layer includes a positive blue phase liquid crystal and a monomer. A voltage is applied to the first electrode and the second electrode such that a vertical electric field is formed. The blue phase liquid crystal layer is illuminated with a light source such that the monomer performs polymerization to produce a polymer-stabilized positive blue phase liquid crystal. A blue phase liquid crystal display is also disclosed herein.
    Type: Application
    Filed: September 13, 2010
    Publication date: October 27, 2011
    Applicant: AU OPTRONICS CORPORATION
    Inventors: Cheng-Yeh Tsai, Tai-Hsiang Huang, Po-Lun Chen
  • Publication number: 20110175946
    Abstract: A transflective liquid crystal display device. A first substrate having viewing and peripheral areas is provided. The viewing area comprises transmissive and reflective regions. A backlight device is disposed under the first substrate, used to provide a backlight passing through the transmissive region. A power management controller connects the backlight device to control an intensity of the backlight. At least one photodetector is formed on the first substrate in the peripheral area, wherein the photodetector detects an intensity of ambient light above the first substrate, and then provides a corresponding signal to the power management controller to control the intensity of the backlight. According to the invention, the intensity of the backlight automatically becomes greater when the intensity of the ambient light becomes lower, and the intensity of the backlight automatically becomes lower when the intensity of the ambient light becomes greater.
    Type: Application
    Filed: March 25, 2011
    Publication date: July 21, 2011
    Applicant: AU OPTRONICS CORP.
    Inventors: Ming-Chin Chang, Yang-En Wu, Po-Lun Chen
  • Patent number: 7907131
    Abstract: A liquid crystal display including a number of scan lines, a number of data lines, a pixel, a first switch circuit, and a second switch circuit is provided. The scan lines include an Nth scan line and an (N+1)th scan line, where N is a positive integer. The pixel includes a first sub-pixel and a second sub-pixel. The first switch circuit is coupled to both the Nth scan line and the (N+1)th scan line and is used for controlling the second sub-pixel. The second switch circuit is coupled to the Nth scan line and is used for controlling the first sub-pixel. The pixel is used for displaying a red, a green, a blue, or a white color.
    Type: Grant
    Filed: September 22, 2006
    Date of Patent: March 15, 2011
    Assignee: Au Optronics Corp.
    Inventors: Jen-Jia Su, Ming-Feng Tien, Chia-Leng Yang, Ting-Jui Chang, Po-Lun Chen
  • Patent number: 7898607
    Abstract: A liquid crystal display includes a gate driver, a data driver and a pixel matrix. The gate driver is for outputting a plurality of gate signals successively. The data driver is for providing a plurality of data signals. The pixel matrix includes a number of pixels. Each pixel includes a first sub-pixel, a second sub-pixel and a voltage coupling device. The voltage coupling device is coupled between the first sub-pixel and the second sub-pixel such that pixel voltages of the first sub-pixel and the second sub-pixel are different and have relevant variation.
    Type: Grant
    Filed: June 8, 2010
    Date of Patent: March 1, 2011
    Assignee: Au Optronics Corp.
    Inventors: Jenn-Jia Su, Ming-Feng Tien, Ting-Jui Chang, Po-Lun Chen
  • Publication number: 20110037930
    Abstract: An optical compensated bend (OCB) mode liquid crystal display (LCD) includes a pixel electrode, a color filter, a common electrode and a liquid crystal layer. The pixel electrode is formed on the first substrate of the OCB mode LCD. The color filter is formed on the second substrate of the OCB mode LCD. The common electrode is formed on the color filter. The liquid crystal layer is sandwiched between the first substrate and the second substrate. A step structure is formed on the second structure, so that the liquid crystal molecules in the liquid crystal layer are twisted into the bend state from the splay state uniformly and quickly.
    Type: Application
    Filed: October 27, 2010
    Publication date: February 17, 2011
    Inventors: Chia-Yu LEE, Ting-Jui Chang, Po-Lun Chen, Jeng-Fang Wu