Patents by Inventor Tsau Hsieh

Tsau Hsieh 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: 20070085817
    Abstract: A method for driving a liquid crystal display (200) includes: providing a liquid crystal display having a plurality of pixel units and a backlight; dividing a frame time into a plurality of sub-frames; defining each pixel unit to have two states, namely on or off, in each of the sub-frames; defining the backlight to have a gradation luminance and two states, namely on or off, in each of the sub-frames; and synchronously controlling the state of each pixel unit, a time period of the on state of each pixel unit, the gradation luminance of the backlight, and a time period of the on state of the backlight in each of the sub-frames to make a resulting total luminous flux in each pixel unit corresponding to a gray scale of an image to be displayed in the frame time to be the same as that of other pixel units.
    Type: Application
    Filed: October 13, 2006
    Publication date: April 19, 2007
    Inventors: Eddy(Ging-Li) Chen, Long-Kuan Chen, Sz Chen, Chih-Sheng Chang, Wen-Chieh Liao, Chueh-Ju Chen, Tsau Hsieh
  • Publication number: 20070070262
    Abstract: A liquid crystal display (100) includes a liquid crystal panel having a plurality of gate lines (GL1˜GLn) that are parallel to each other and that each extend along a first direction, and a plurality of data lines (DL1˜DLm+1) that are parallel to each other and that each extend along a second direction substantially orthogonal to the first direction, a plurality of pixel regions (130) defined by points of intersection of the gate lines and the data lines, and a gate driver (140) for driving the gate lines, and a data driver (160) for driving the data lines. Each of the data lines includes curving portions, such that each of the pixel regions defined by two corresponding data lines has two curved side boundaries.
    Type: Application
    Filed: September 25, 2006
    Publication date: March 29, 2007
    Inventors: Chao Hung, Tsau Hsieh, Hung Chen
  • Publication number: 20060262061
    Abstract: A liquid crystal display device (100 or 200) includes a first substrate (110 or 210) and a second substrate (120 or 220) opposite to each other, a liquid crystal layer (130 or 230) sandwiched between the first and second substrates; a common electrode (140 or 240) formed on the first substrate, and the common electrode having a plurality of openings (180 or 280); and a plurality of gate lines (150 or 250) formed on the second substrate and positionally corresponding the openings respectively. Moreover, the gate lines can be arranged with the areas of the second substrate corresponding to the openings. The coupled capacitor delaying of signals of gate electrodes in the TFTs can be reduced. Accordingly, flickering can be reduced, and the display performance can be improved.
    Type: Application
    Filed: May 23, 2006
    Publication date: November 23, 2006
    Inventors: Yun Liu, Tsau Hsieh, Hung Chen, Chao Lai, Chao Hung
  • Publication number: 20060238470
    Abstract: An LTPS (low temperature poly-silicon) display panel includes a display area and a pair of driving circuit areas. The display area is fabricated by cutting from a display substrate. The driving circuit areas are fabricated by cutting from an insulated substrate having a poly-silicon film thereon. The driving circuit areas are electrically connected with the display area. This approach reduces the impediment to uniformity that is caused by various different processes, and thus improves the yield rate and reduces production costs.
    Type: Application
    Filed: April 25, 2005
    Publication date: October 26, 2006
    Inventors: Tsau Hsieh, Jia-Pang Pang
  • Publication number: 20060221294
    Abstract: A liquid crystal display device (LCD) and a method for manufacturing the same are shown. The LCD includes a first substrate (41), a second substrate (42) opposite to the first substrate and a liquid crystal layer (43) between the first substrate, and the second substrate. A number of photospacers (44) are arranged on the first substrate and a conductive layer covers (440) on the photospacers. A number of common lines (421) are arranged on the second substrate and the conductive layer covered on the photospacers interconnects with the common lines electrically.
    Type: Application
    Filed: April 3, 2006
    Publication date: October 5, 2006
    Inventors: Yun Liu, Tsau Hsieh, Kun Hsiao
  • Publication number: 20060177775
    Abstract: A method for manufacturing a plate (21) having an electrode (214) with a plurality of gaps (217) is provided. The method includes the steps of: providing a substrate (200) comprising a glass layer (210); coating a plurality of photo-resist protrusions (215) on the substrate; coating a transparent conductive layer (218) on the photo-resist protrusions and the substrate; removing the photo-resist protrusions and corresponding portions of the transparent conductive layer, thereby forming a plurality of gaps in the transparent conductive layer. The method of the preferred embodiment can provide a simplified process at a lower cost, compared with conventional methods requiring etching t.
    Type: Application
    Filed: February 6, 2006
    Publication date: August 10, 2006
    Inventors: Yun Liu, Tsau Hsieh, Sheng-Shiou Yeh
  • Publication number: 20060156125
    Abstract: An exemplary shift register system (31) includes a shift register (311), and four switches (312-315). The shift register includes input pins, output pins, a start pin, a reset pin, a first controlling pin, and a second controlling pin. Each switch includes input pins according to the output pins of the shift register, output pins, an enabling pin, and a third controlling pin. The switches are connected with each other in series through respective of the enabling and controlling pins thereof. The enabling pin of the first switch is connected to the start pin of the shift register, and the third controlling pin of the last switch is connected to the reset pin of the shift register. The output pins of the shift register are connected to the input pins of each switch through a bus line (316), and the output pins of the switches are connected to an external circuit.
    Type: Application
    Filed: November 28, 2005
    Publication date: July 13, 2006
    Inventors: Sz Chen, Long Chen, Tsau Hsieh
  • Publication number: 20060156079
    Abstract: An exemplary shift register system (31) includes a counter (316), a shift register (311) and a plurality of switches (312, 313, 314, 315). The counter includes a signal receiving pin which is for connection to a first external circuit, a pulse output pin, and a number of signal output pins. The shift register includes sixty-four register units therein, sixty-four output pins, a start pin connected to the pulse output pin of the counter, a controlling pin connected to the signal receiving pin of the counter. Each switch includes sixty-four input pins connected to the output pins of the shift register through a bus line, sixty-four output pins that are for connection to a second external circuit, and an enabling pin connected to a respective one of the signal output pins of the counter. A related method for driving a shift register system, and a circuit for driving a liquid crystal display, are also provided.
    Type: Application
    Filed: December 19, 2005
    Publication date: July 13, 2006
    Inventors: Sz Chen, Long Chen, Tsau Hsieh
  • Publication number: 20060145988
    Abstract: An LCD (10) includes a plurality of first and second scanning lines (11, 12) that each extend along a first direction; a plurality of first and second signal lines (21, 22) that each extend along a second direction orthogonal to the first direction; a plurality of scanning connection lines (13) electrically connecting with the first and the second scanning lines; a plurality of first TFTs (31) each provided in the vicinity of intersection of the first scanning lines and the first signal lines; a plurality of second TFTs (32) each provided in the vicinity of intersection of the second scanning lines and the second signal lines. The second TFTs connected to the second scanning line opens in turn and delays after the corresponding first TFTs opens, and the second signal line supply a black-insertion voltage to reset the liquid crystal black when the second TFT opens.
    Type: Application
    Filed: December 30, 2005
    Publication date: July 6, 2006
    Inventors: Tsau Hsieh, Jia-Pang Pang, Chien-ting Lai
  • Publication number: 20060139518
    Abstract: An exemplary LCD panel (40) includes a first substrate (41) and a second substrate (42) opposite to each other, and a plurality of main sealants (43), a dummy sealant (44), and one or more dividing lines provided at one of the first and second substrates. The dummy sealant surrounds the main sealants. The dividing lines intersect the dummy sealant, the dummy sealant thereby define a plurality of overlap portions. And liquid crystal is disposed within each of the main sealants. A plurality of shielding portions (423) is provided at one of the first and second substrates, the shielding portions is positioned corresponding to the overlapped portions. With this configuration, it will be easier to cut the LCD panel into unit cells. Further, the LCD panel eliminates the need for mask, this decreases the costs thereof.
    Type: Application
    Filed: December 23, 2005
    Publication date: June 29, 2006
    Inventors: Jia-Yi Wu, Kun-Hsing Hsiao, Tsau Hsieh
  • Publication number: 20060139277
    Abstract: An active matrix LCD (200) includes: a plurality of scanning lines (23) that are parallel to each other and that each extend along a first direction; a plurality of signal lines (24) that are parallel to each other and that each extend along a second direction orthogonal to the first direction; a plurality of thin film transistors (TFTs) each provided in the vicinity of a respective point of intersection of the scanning lines and the signal lines; a plurality of scanning line driving circuits (21) for providing a plurality of scanning signal groups to the scanning lines, each scanning signal group including an image scanning signal and a black-inserting scanning signal; a plurality of signal line driving circuits (22) for providing gradation voltage data to the signal lines; and a plurality of black-inserting circuits (28) for providing a high voltage corresponding to black image data to the signal lines.
    Type: Application
    Filed: December 23, 2005
    Publication date: June 29, 2006
    Inventors: Sz Chen, Long Chen, Hung Chen, Tsau Hsieh
  • Publication number: 20060139302
    Abstract: A method for driving an active matrix liquid crystal display (LCD) (200) includes: dividing a frame time into a first period and a second period; defining a gradation voltage that makes the light transmission of a pixel unit accumulated in the first period correspond to image data of an external circuit; defining a black-inserting voltage which corresponds with a black image; applying the gradation voltage to pixel electrodes (203) of pixel units of the LCD when the gate lines (201) are scanned by a gate driver (210) of the LCD in the first period; applying the black-inserting voltage to the pixel electrodes of the pixel units when the gate lines are scanned by the gate driver in the second period; and turning off a backlight of the LCD in the second period.
    Type: Application
    Filed: December 22, 2005
    Publication date: June 29, 2006
    Inventors: Long Chen, Eddy Chen, Chih-sheng Chang, Sz Chen, Tsau Hsieh, Jia-Pang Pang
  • Publication number: 20060132409
    Abstract: A driving method for an active matrix liquid crystal display panel includes the following steps. First, a frame period is divided into a display period (t1) and a black insertion period (tr). A gray-scale voltage is generated according to a desired corresponding light transmittance of each pixel of the liquid crystal display panel; and during the display period, the gray-scale voltage is supplied to a corresponding pixel electrode of the liquid crystal display panel. Then during the black insertion period, a restoring voltage Vh is supplied to the pixel electrode, so that the pixel is returned to an initial black state. Accordingly, the quality of motion pictures of the liquid crystal display panel is good.
    Type: Application
    Filed: December 19, 2005
    Publication date: June 22, 2006
    Inventors: Long Chen, Eddy Chen, Chih-Sheng Chang, Sz Chen, Tsau Hsieh, Jia-Pang Pang
  • Publication number: 20060125813
    Abstract: An active matrix LCD (200) includes: a plurality of scanning lines (23) that are parallel to each other and that each extend along a first direction; a plurality of signal lines (24) that are parallel to each other and that each extend along a second direction orthogonal to the first direction; a plurality of thin film transistors (TFTs) each provided in the vicinity of a respective point of intersection of the scanning lines and the signal lines; a plurality of scanning line driving circuits (21) for providing a plurality of scanning signal groups to the scanning lines, each scanning signal group including an image scanning signal and a black-inserting scanning signal; a plurality of signal line driving circuits (22) for providing gradation voltage data to the signal lines; and a black-inserting circuit (28) for providing black-inserting signals corresponding to black image data to the signal lines.
    Type: Application
    Filed: December 23, 2005
    Publication date: June 15, 2006
    Inventors: Sz Chen, Long Chen, Hung Chen, Tsau Hsieh
  • Publication number: 20050264551
    Abstract: An active-matrix display device (2) includes a substrate (250), a plurality of scanning lines (120) and data lines (140) formed on the substrate, a gate driving IC device (200) with a plurality of outputs for supplying scanning signals to the scanning lines, a source driving IC (400) for supplying data signals to the data lines, a multi-driving circuit (240) connecting with the gate driving IC device. The quantity of outputs of the gate driving IC can be expanded by the multi-driving circuit. This reduces the quantity of gate driving ICs needed, and thus lowers the cost of the active-matrix display device.
    Type: Application
    Filed: May 31, 2005
    Publication date: December 1, 2005
    Inventors: Tsau Hsieh, Jia-Pang Pang
  • Publication number: 20050230753
    Abstract: An LTPS TFT substrate includes an insulated substrate and a poly-silicon film formed on the insulated substrate. The poly-silicon film includes a driving circuit area and a display area. The driving circuit area includes a plurality of driving circuits. The display area includes a plurality of pixel units. The driving circuit area and the display area are separately fabricated. This approach reduces the impediment to uniformity that is caused by the process variety, and thus improves the yield rate and reduces production costs.
    Type: Application
    Filed: April 18, 2005
    Publication date: October 20, 2005
    Inventors: Tsau Hsieh, Jia-Pang Pang
  • Publication number: 20050219455
    Abstract: A liquid crystal display panel (3) includes: a first substrate (300) and a second substrate (350) opposite to each other, the second substrate defining a display area (3502) and a peripheral area (3501); a liquid crystal layer containing a plurality of liquid crystal molecules (303) disposed between the first and second substrates; a sealant (310) associated with the peripheral area for supporting and adhering the first and second substrates together; and an isolating member (360) isolating the sealant from the liquid crystal layer. The isolating member of the liquid crystal display panel is located between the liquid crystal molecules and the sealant. This prevents the liquid crystal from reacting with uncured sealant, and thus improves the performance of the liquid crystal display panel.
    Type: Application
    Filed: March 31, 2005
    Publication date: October 6, 2005
    Inventors: Tsau Hsieh, Jia-Pang Pang
  • Publication number: 20050195008
    Abstract: A hybrid latch flip-flop is applied to an LCD. The hybrid latch flip-flop includes a negative pulse generation unit, a latch flip-flop, and a buffer unit. The latch flip-flop includes a sampling unit and a hold unit. One feature of the present invention is that fewer transistors are employed in the hybrid latch flip-flop, which gives rise to low power consumption. Another feature of the present invention is that, by employing the negative pulse generation unit of a double edge trigger type, the data processing capacity of the hybrid latch flip-flop is doubled without changing the clock frequency.
    Type: Application
    Filed: March 7, 2005
    Publication date: September 8, 2005
    Inventors: Tsau Hsieh, Jia-Pang Pang
  • Publication number: 20050195007
    Abstract: A hybrid latch flip-flop is applied to an LCD. The hybrid latch flip-flop includes a positive pulse generation unit, a latch flip-flop, and a buffer unit. The latch flip-flop includes a sampling unit and a hold unit. One feature of the present invention is that fewer transistors are employed in the hybrid latch flip-flop, which gives rise to low power consumption. Another feature of the present invention is that, by employing the positive pulse generation unit of a double edge trigger type, the data processing capacity of the hybrid latch flip-flop is doubled without changing the clock frequency.
    Type: Application
    Filed: March 7, 2005
    Publication date: September 8, 2005
    Inventors: Tsau Hsieh, Jia-Pang Pang
  • Publication number: 20050151913
    Abstract: An in-plane switching (IPS) liquid crystal display device (100) includes pixel units each having a storage capacitor. The storage capacitor is formed by a common electrode (112), a drain electrode (103), and a counter electrode (110). The common electrode is electrically coupled with the counter electrode. The counter electrode substantially covers the drain electrode, for shielding unexpected coupling effects on the drain electrode due to data signals on a data line (101) driving other pixels of the liquid crystal display device.
    Type: Application
    Filed: December 30, 2004
    Publication date: July 14, 2005
    Inventors: Chao Lai, Yun Liu, Tsau Hsieh, Jia-Pang Pang