Patents by Inventor Wen-Chun Wang

Wen-Chun Wang 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: 20080253499
    Abstract: A shift register includes several stages of shift register units. Each shift register unit includes a first level lifting unit, first level lowering unit, first driving unit and level controller. The first level lifting unit and first level lowering unit control the scan signal to be equal to a first timing signal and first voltage, respectively. The level controller includes an input unit, a charge storage unit, a second level lifting unit and a second level lowering unit. The input unit controls the third control signal to be equal to the first voltage at a node. The charge storage unit stores a voltage of the timing signal at the node. The second level lifting unit and second level lowering unit respectively control the second control signal to be equal to the third control signal and the first voltage to turn on and turn off the first level lowering unit.
    Type: Application
    Filed: April 11, 2008
    Publication date: October 16, 2008
    Applicant: WINTEK CORPORATION
    Inventors: Chien-Ting Chan, Wen-Chun Wang
  • Publication number: 20080252802
    Abstract: An active matrix substrate is provided. The active matrix substrate includes a substrate, scan lines, data lines, and pixel units. The scan lines, data lines, and pixel units are all disposed over the substrate. The pixel unit includes an active component, a pixel electrode, and an auxiliary electrode. The active components are electrically connected with the scan lines and data lines. The pixel electrode has openings extended from the edge of the pixel electrode to the interior of the pixel electrode. The auxiliary electrode is electrically connected with the pixel electrode controlled by a previous scan line and includes a body portion and extending portions disposed in the openings. The pixel electrode is electrically connected with the auxiliary electrode of a pixel unit controlled by a next scan line.
    Type: Application
    Filed: April 11, 2008
    Publication date: October 16, 2008
    Applicant: WINTEK CORPORATION
    Inventors: Wen-Chun Wang, Chin-Chang Liu
  • Publication number: 20080227242
    Abstract: A pixel structure of a thin film transistor liquid crystal display employs a design of three metal layers and includes an organic insulating layer between a data signal line and a common electrode for reducing a parasitic capacitance, while a passivation layer included between the common electrode and a pixel electrode acts as a storage capacitor required for the pixels, so as to achieve a high aperture ratio, and the common electrode can act as a shielding bar for enhancing the display contrast.
    Type: Application
    Filed: May 28, 2008
    Publication date: September 18, 2008
    Inventors: Che-Fu TSAI, Yi-Lin CHOU, Wen-Chun WANG
  • Publication number: 20080165301
    Abstract: A liquid crystal display panel with electrostatic discharge protection capability has an array substrate having an active area, a driver IC, a Vcom wire and an electrostatic reduction element formed on. The driver IC is formed beside the active area. The Vcom wire is formed around the active area and is connected with the electrostatic reduction element to the driver IC. When an electrostatic discharge current flows on the Vcom wire to the driver IC, the electrostatic reduction element mitigates or obviates damage to the driver IC.
    Type: Application
    Filed: January 7, 2008
    Publication date: July 10, 2008
    Applicant: WINTEK CORPORATION
    Inventors: Nai-Heng CHANG, Chih-Ming CHEN, Lin LIN, Chih-Chang LAI, Wen-Chun WANG, Shyh-Jeng CHEN, Chun Chieh WU, Chi-Ming HSIEH
  • Publication number: 20080111963
    Abstract: A liquid crystal display panel (LCD) panel is provided. The LCD panel includes a plurality of pixels. Each pixel includes a pixel electrode layer and a plurality of liquid crystal domain arranging layers. The pixel electrode layer has a plurality of slits. The liquid crystal domain arranging layers are disposed near the pixel electrode layer. Each pixel is divided into a plurality of essentially closed liquid crystal domain fields by the arranging layers and the slits. Each liquid crystal domain field is formed by encircling at least one arranging layer and at least one slit.
    Type: Application
    Filed: October 30, 2007
    Publication date: May 15, 2008
    Applicant: Wintek Corporation
    Inventors: Yi-Chun Wu, Chien-Chang Lee, Wen-Chun Wang, Ming-Chang Yu
  • Publication number: 20080106658
    Abstract: A multi-domain liquid crystal display includes a plurality of picture elements arranged in an array of rows and columns and controlled by a line inversion drive scheme. Each picture element has a pixel electrode and at least one control electrode insulated from each other. All the control electrodes in the same row or the same column of picture elements are connected to the same signal source to provide a voltage difference between the control electrodes and the pixel electrodes in the same row or the same column of picture elements to produce fringe fields.
    Type: Application
    Filed: October 30, 2007
    Publication date: May 8, 2008
    Inventors: Wen-Chun Wang, Wan-Jen Tsai, Min-Chang Yu, Chian-Chang Lee
  • Publication number: 20080074589
    Abstract: A transreflective LCD panel and an electronic device using the same are provided. The LCD panel includes a first substrate and a second substrate. The second substrate is parallel to the first substrate. A liquid crystal layer is sealed between the two substrates. The first substrate includes several reflective portions. The second substrate includes a color filter structure. The color filter structure includes several color filter layers in at least four colors. Each of the color filter layers has an opening corresponding to one reflective portion. An optical filter is disposed in the opening for enhancing the coloration of the LCD panel.
    Type: Application
    Filed: September 20, 2007
    Publication date: March 27, 2008
    Applicant: Wintek Corporation
    Inventors: Wen-Chun Wang, Chin-Chang Liu, Kuo-Chang Su
  • Publication number: 20080068538
    Abstract: A LCD panel includes a plurality of pixel elements. Each pixel element includes a first substrate, a second substrate and an optical filter portion. The first substrate and the second substrate are parallel to each other, and a liquid crystal layer is sealed between the first substrate and the second substrate. The first substrate includes a reflective portion, and the second substrate includes a color filter layer. The color filter layer disposed between the first substrate and the second substrate has an opening opposite to the reflective portion. The optical filter portion is disposed in the opening of the color filter layer for providing color compensation in a reflection mode.
    Type: Application
    Filed: September 13, 2007
    Publication date: March 20, 2008
    Applicant: Wintek Corporation
    Inventors: Chun-Ming Huang, Wen-Chun Wang, Chin-Pei Hwang, Chien-Chung Chen, Yi-Fan Chen, Chin-Chang Liu, Hen-Ta Kang
  • Publication number: 20080018814
    Abstract: A multi-domain liquid crystal display includes a plurality of first and second picture elements having polarities opposite to each other under the same frame of an inversion drive scheme. Each first picture element has an extension part positioned next to at least one side of the adjacent second picture element, and each second picture element has an extension part positioned next to at least one side of the adjacent first picture element.
    Type: Application
    Filed: March 14, 2007
    Publication date: January 24, 2008
    Inventors: Ying-Cheng Tsai, Chien-Ting Chan, Hsi-Rong Han, Wen-Chun Wang
  • Publication number: 20080016139
    Abstract: A shift register has shift register units. The nth shift register unit includes first to third level control units and first and second driving units. The first and second level control units respectively provide a first clock signal and a first voltage to an output terminal. The first driving unit and the first level control unit are coupled to a first node, and a voltage on the first node is a first control signal. The first driving unit turns on and off the first level control unit in response to an input signal and second and third control signals. The second driving unit turns on and off the second level control unit in response to the first control signal. The third level control unit provides the first voltage to the output terminal in response to a front edge of the first control signal of the (n+2)th shift register unit.
    Type: Application
    Filed: July 11, 2007
    Publication date: January 17, 2008
    Applicant: Wintek Corporation
    Inventors: Yi-Cheng Tsai, Wen-Chun Wang, Hsi-Rong Han, Chien-Ting Chan
  • Publication number: 20070291208
    Abstract: A multi-domain liquid crystal display includes multiple first and second picture elements and multiple first and second auxiliary electrodes. The first and second picture elements have opposite polarities under the same frame of an inversion drive scheme, and each picture element has a reflective region and a transmissive region. The first auxiliary electrodes are connected to the first picture elements, and each of the first auxiliary electrodes is positioned next to at least one side of one second picture element. The second auxiliary electrodes are connected to the second picture elements, and each of the second auxiliary electrodes is positioned next to at least one side of one first picture element.
    Type: Application
    Filed: December 18, 2006
    Publication date: December 20, 2007
    Inventors: Wen-Chun Wang, Chin-Chang Liu, I Wang, Ming-Chang Yu
  • Publication number: 20070268420
    Abstract: A flat display including a display panel is disclosed. The display panel includes several signal lines and ESD protection circuits whose negative ESD protection circuits have cell test function. When a driving IC bonds to the display panel, the system operates in a normal dynamic display mode, and the negative ESD protection circuits are coupled to a low-level voltage such that thin film transistors of the negative ESD protection circuit are switched off in the normal display mode. Therefore, the power consumption of the panel module can be reduced and using time of the products can be improved.
    Type: Application
    Filed: May 11, 2007
    Publication date: November 22, 2007
    Applicant: Wintek Corporation
    Inventors: Yi-Cheng Tsai, Wen-Chun Wang
  • Patent number: 7286627
    Abstract: A shift register circuit with high stability includes a plurality of stages, each including a supplementary unit for supplementing an output node with low voltage level. The present invention utilizes an output signal of the output node to feed back to a shift register circuit unit and act as a control signal. The control signal controls the shift register circuit unit, and further the output node of the shift register circuit unit is continuously supplemented with low voltage level. Thus, the shift register circuit of the present invention has the function of driving signal shift according to the necessity of active matrix liquid crystal panel. Furthermore, when an amorphous silicon thin film transistor is embodied in the shift register circuit, the present invention restrains the shift phenomena of the threshold voltage of the amorphous silicon thin film transistors and thereby increases the lifetime and stability of the shift register circuit.
    Type: Grant
    Filed: July 22, 2005
    Date of Patent: October 23, 2007
    Assignee: Wintek Corporation
    Inventors: Che-Fu Tsai, Wen-Chun Wang, Wen-Tui Liao
  • Publication number: 20070229430
    Abstract: A multi-domain liquid crystal display includes a plurality of first and second picture elements and a plurality of first and second auxiliary electrodes. The first and second picture elements have opposite polarities under the same frame of an inversion drive scheme. The first auxiliary electrodes are connected to the first picture elements and at least partially surround each of the second picture elements, and the second auxiliary electrodes are connected to the second picture elements and at least partially surround each of the first picture elements.
    Type: Application
    Filed: June 15, 2006
    Publication date: October 4, 2007
    Inventors: Wen-Chun Wang, Chin-Chang Liu, Yi-Chun Wu, Hsi-Rong Han
  • Publication number: 20070222725
    Abstract: A structure and driving method for active photoelectric element that aims to every matrix-arranged pixel on the display panel. The pixel structure includes a set of first thin film diodes and a set of second thin film diodes. The first set and the second set of film diodes are connected at a node. The electrical impedances of the first set and the second set of film diodes are unsymmetrical. The first set of film diodes connects to the select lines of the pixel while the second set of film diodes connects to the select lines of the pixel on the next row, which forms a configuration that the up/down pixels share one select line. Consequently, the driving signal for the up select line of a single pixel is determined by the driving signal for the down select line of the up pixel so as to reduce the quantity of select lines.
    Type: Application
    Filed: March 24, 2006
    Publication date: September 27, 2007
    Inventors: Wen-Chun Wang, Henta Kang, Yi-Chin Wang
  • Publication number: 20070182901
    Abstract: A multi-domain liquid crystal display includes a first and a second substrates, and a liquid crystal layer is interposed between the first and the second substrates. A first common electrode is formed on an entire surface of the first substrate. A first dielectric layer is formed on the second substrate and covers first signal lines, and a second dielectric layer is formed on the first dielectric layer and covers second signal lines. A plurality of pixel electrodes are formed on the second dielectric layer, and a plurality of second common electrodes are formed on the second substrate, where a voltage difference existing between the second common electrodes and the pixel electrode produces fringe fields.
    Type: Application
    Filed: November 27, 2006
    Publication date: August 9, 2007
    Inventors: Wen-Chun Wang, Chian-Chang Lee, Chin-Chang Liu, Ying-Cheng Tsai, Yi-Lin Chou
  • Publication number: 20070178617
    Abstract: A pixel structure of a thin film transistor liquid crystal display employs a design of three metal layers and includes an organic insulating layer between a data signal line and a common electrode for reducing a parasitic capacitance, while a passivation layer included between the common electrode and a pixel electrode acts as a storage capacitor required for the pixels, so as to achieve a high aperture ratio, and the common electrode can act as a shielding bar for enhancing the display contrast.
    Type: Application
    Filed: January 30, 2006
    Publication date: August 2, 2007
    Inventors: Che-Fu Tsai, Yi-Lin Chou, Wen-Chun Wang
  • Patent number: 7218296
    Abstract: A driving circuit of active matrix organic electroluminescence diode is disclosed. Each pixel includes three TFTs and two capacitors. A gate of scan reset TFT is controlled by the scan line of the row where the pixel is located and a drain of scan reset TFT is connected to the data line of the column where the pixel is situated. Detect TFT is controlled by one Threshold-Lock line. One capacitor Cd is used to store data voltage (Vdata) of image signals and the other capacitor Ct is used to store the threshold voltage (Vth) of driving TFT. Therefore, the sum of capacitors Cd and Ct will drive the driving TFT to output the corresponding current to the organic electroluminescence element.
    Type: Grant
    Filed: March 18, 2004
    Date of Patent: May 15, 2007
    Assignee: Wintek Corporation
    Inventors: Wen-Chun Wang, Chien-Chung Kuo, Shin-Tai Lo, Hsi-Rong Han, Wen-Tui Liao
  • Publication number: 20070105052
    Abstract: A thin film transistor liquid array substrate includes forming a plurality of amorphous silicon thin film transistors and storage capacities on a transparent substrate, wherein the amorphous silicon thin film transistors and the storage capacities are arranged in an array pattern. The storage capacitor has a top electrode and a bottom electrode, which are made of transparent conductive material to increase aperture ratio. A method of making the amorphous silicon thin film transistors and the storage capacities includes four photomask processes and a back exposure technique. Because the present invention only uses four photomask processes, the number of photomasks used in the process of the present invention is less than the conventional method, and the cost of fabrication is lower also.
    Type: Application
    Filed: April 17, 2006
    Publication date: May 10, 2007
    Applicant: WINTEK CORPORATION
    Inventors: Chin-Shan Chang, Wen-Chun Wang, Fa-Chen Wu
  • Publication number: 20070086090
    Abstract: An image display device includes a display panel and a parallax optic. The display panel is provided with a stripe sub-pixel arrangement in which sub-pixels arranged in a first direction have identical colors, and sub-pixels arranged in a second direction have distinct colors. The pixel density in the first direction is twice the pixel density in the second direction of the stripe sub-pixel arrangement. The parallax optic has view-separation elements arranged in the first direction into multiple rows. Each view-separation element is positioned corresponding to two adjacent sub-pixels, and the view-separation elements in one row are staggered relative to the view-separation elements in immediately adjacent rows.
    Type: Application
    Filed: October 13, 2005
    Publication date: April 19, 2007
    Inventors: Wen-Chun Wang, Han-Chang Lin, Fa-Chen Wu, Yi-Chin Wang