Patents by Inventor Chih-Chang Lai

Chih-Chang Lai 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: 20120298428
    Abstract: A layout structure of a capacitive touch panel including a conductive layer, an insulation layer, and a plurality of electric bridges is provided. The conductive layer disposed on a substrate includes a plurality of first touch units and a plurality of second touch units. The first touch units are electrically connected with each other through a plurality of connecting sections to form a plurality of first touch series extended along a first direction. The insulation layer is disposed on the conductive layer. Each electric bridge includes a compensation portion, a first crossover portion, and a second crossover portion. The compensation portions are respectively disposed on the connecting sections. The first and second crossover portions are disposed on the insulation layer. The second touch units are electrically connected with each other through the first and second crossover portions to form a plurality of second touch series extended along a second direction.
    Type: Application
    Filed: August 3, 2011
    Publication date: November 29, 2012
    Applicant: NOVATEK MICROELECTRONICS CORP.
    Inventor: Chih-Chang Lai
  • Patent number: 8294677
    Abstract: A transparent capacitive touch panel comprising a transparent substrate, a transparent cover lens and a transparent adhesive layer is provided, wherein a first transparent electrode layer and a second transparent electrode layer are disposed on the transparent cover lens and the transparent substrate respectively. The transparent adhesive layer is used to bind the first transparent electrode layer and second transparent electrode layer in order to combine the transparent cover lens and the transparent substrate disposed in parallel. Thereby, the manufacturing process of the transparent capacitive touch panel is simplified, and the manufacturing cost of the same is lowered.
    Type: Grant
    Filed: December 23, 2008
    Date of Patent: October 23, 2012
    Assignee: Wintek Corporation
    Inventors: Jason Wu, Yen-Chung Hung, Ruey-Shing Weng, Chih-Chang Lai
  • Publication number: 20120262414
    Abstract: A layout structure of a capacitive touch panel is provided. The layout structure includes a plurality of electrical paths and a plurality of touch units. The touch units respectively include at least a receiving electrode and at least a driving electrode insulated from the receiving electrode. The receiving electrodes and the driving electrodes are disposed in the same conducting layer. The receiving electrodes are connected to a controller via different electrical paths. The driving electrodes electrically are connected to each other.
    Type: Application
    Filed: March 30, 2012
    Publication date: October 18, 2012
    Applicant: NOVATEK MICROELECTRONICS CORP.
    Inventor: Chih-Chang Lai
  • Patent number: 8289294
    Abstract: A touch-sensitive display panel including a first substrate, a second substrate, an active pixel matrix, many driving circuits, many sensing electrodes and many color filter layers is provided. The active pixel matrix includes many pixels. The second substrate has a first surface and a second surface, wherein the first surface faces the active pixel matrix. The driving circuits are corresponding to the edges of the pixels for forming many openings. Each driving circuit includes a first main line and a second main line. The first main line has a first end connected to the active pixel matrix and a second end connected to the first substrate. The second main line is connected to the second end of the first main line through the first substrate. The color filter layers are filled in the openings. The sensing electrodes and the driving circuits are used for detecting at least one touch point.
    Type: Grant
    Filed: November 12, 2010
    Date of Patent: October 16, 2012
    Assignee: Wintek Corporation
    Inventors: Po-Hsien Wang, Chih-Chang Lai, Jyun-Sian Li, Ching-Fu Hsu
  • Publication number: 20120249442
    Abstract: A driving method adapted to a touch-sensing display device is provided. The touch-sensing display device includes a display panel and a touch panel. The driving method includes following steps. A plurality of first scan signals of the touch panel are sequentially received, so that a plurality of first data values are obtained. It is determined whether the first data values are less than a difference between a baseline value and a threshold value. When one of the first data values is less than the difference between the baseline value and the threshold value, reporting of a touch coordinate of the touch panel is terminated. Furthermore, a touch-sensing device is also provided.
    Type: Application
    Filed: December 14, 2011
    Publication date: October 4, 2012
    Applicant: NOVATEK MICROELECTRONICS CORP.
    Inventors: Hui-Hung Chang, Jyun-Sian Li, Chih-Chang Lai
  • Patent number: 8279235
    Abstract: A color correction method is provided. Grey values of three primary colors of an image data are transformed into initial characteristic values in a color space. Three sets of characteristic values of a to-be-corrected apparatus when the apparatus displays the primary colors respectively are measured. The characteristic values of the image data are transformed into a set of adjusted brightness values of the primary colors according to the characteristic values and a color space transformation equation. Gamma curves of the apparatus when displaying the primary colors are measured and modified to generate new grey-value vs. brightness relationships for the primary colors, so as to obtain adjusted grey values of the primary colors corresponding to the adjusted brightness values.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: October 2, 2012
    Assignee: Wintek Corporation
    Inventors: Jyun-Sian Li, Chih-Chang Lai
  • Patent number: 8243059
    Abstract: The invention discloses a driving method for a display. The method includes the following steps: providing a pixels structure; receiving a plurality of frames; driving the (2n?1)th scan line and the (2n)th scan line by turns while receiving the number of odd frame; driving (2n)th scan line and (2n?1)th scan line by turns while receiving the number of even frame; adjusting the voltage of the Vcom according to pixels voltage value which are the voltage to be written into the pixels by odd data lines and even data lines while the pixels structure receiving the number of odd frame and the number of the even frame.
    Type: Grant
    Filed: February 20, 2009
    Date of Patent: August 14, 2012
    Assignee: Wintek Corporation
    Inventors: Chih-Chang Lai, Lin Lin, Wen Hung Wang
  • Publication number: 20120194445
    Abstract: A moving point gesture determination method is disclosed for a touch sense device mapped to a screen according to absolute position. The moving point gesture determination method includes steps of comparing one or more signal values of one or more detecting signals generated by the touch sense device with one or more threshold values, to determine whether any touch event occurs, and determining that a moving point gesture occurs once the determination indicates that a touch event occurs.
    Type: Application
    Filed: July 27, 2011
    Publication date: August 2, 2012
    Inventors: Hui-Hung Chang, Chun-Chieh Chang, Chih-Chang Lai
  • Patent number: 8228438
    Abstract: An image processing method is provided. An image signal is received and correspondingly converted to an original luminance value, an original first chroma value and an original second chroma value. The original luminance value is adjusted to a modulated luminance value. The modulated luminance value is larger than the original luminance value as the original luminance value is larger than a threshold. The modulated luminance value is less than the original luminance value as the original luminance value is less than the threshold. The original first and second chroma values are linearly adjusted to a modulated first chroma value and a modulated second chroma value according to an original vector between the original first and second chroma values and a white point in a color gamut. The modulated luminance value, the modulated first chroma value and the modulated second chroma value are reconverted to a modulated image signal.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: July 24, 2012
    Assignee: Wintek Corporation
    Inventors: Ching-Fu Hsu, Chih-Chang Lai, Jyun-Sian Li
  • Publication number: 20120162100
    Abstract: Disclosed is a click gesture determination method for a touch control chip capable of simply and flexibly determining a single click gesture. The click gesture determination method includes steps of comparing one or more signal values of one or more detecting signals with one or more threshold values, to determine whether a touch event occurs, continuing the above comparing if a touch event occurs, to detect a continuous occurrence time of the touch event, and comparing the continuous occurrence time with a first predefined time, and determining that a single click gesture occurs for a result of the comparison that the continuous occurrence time is longer than the first predefined time.
    Type: Application
    Filed: April 25, 2011
    Publication date: June 28, 2012
    Inventors: Chun-Chieh Chang, Chih-Chang Lai
  • Publication number: 20120146927
    Abstract: A method for detecting a single-finger rotation gesture and a gesture detecting circuit thereof are provided. The gesture detecting circuit comprises a quadrant dividing unit, a register, a control unit, a comparing unit, and an outputting unit. The quadrant dividing unit, according to the center point, divides a touch panel into at least three quadrants and sets a plurality of data codes respectively corresponding to the quadrants. Within a predetermined time, the control unit controls the register to sequentially record the data codes respectively corresponding to the touched quadrants. When the predetermined time is reached, the comparing unit compares to judge whether the temporary data buffered in the register is the same with the default data. If the temporary data is the same with the default data, then the outputting unit outputs a rotation gesture signal.
    Type: Application
    Filed: December 8, 2011
    Publication date: June 14, 2012
    Applicant: NOVATEK MICROELECTRONICS CORP
    Inventors: Hui-Hung CHANG, Chun-Chieh Chang, Chih-Chang Lai
  • Patent number: 8200038
    Abstract: An image processing apparatus and an image processing method. The image processing apparatus includes a first convolution unit, a weight generator, a second convolution unit, an arithmetic unit and an outputting unit. The first convolution unit performs a convolution to output edge strength according to an original image signal and a high pass filter mask. The weight generator chooses a weight coefficient according to the edge strength. The second convolution unit performs a convolution to output an unsharp image signal according to the original image signal and a low pass filter mask. The arithmetic unit outputs a first sharpening signal according to the original image signal, the unsharp image signal and the weight coefficient. The outputting unit outputs a processed image signal according to the original image signal and the first sharpening signal.
    Type: Grant
    Filed: January 13, 2009
    Date of Patent: June 12, 2012
    Assignee: Wintek Corporation
    Inventors: Jyun-Sian Li, Chih-Chang Lai, Ruey-Shing Weng, Ching-Fu Hsu
  • Publication number: 20120113045
    Abstract: A driving method adapted to a touch-sensing display apparatus is provided. The touch-sensing display apparatus includes a display panel and a touch panel. The driving method includes following steps. I scan signals are sequentially sent to drive the display panel to receive a plurality of data signals. M driving signals are sequentially sent to drive the touch panel to generate a plurality of sensing signals during a sensing period. The mth driving signal is synchronized with the ith scan signal, wherein 1?i?I and 1?m?M. The touch panel is delayed by a predetermined time period within each pulse width of the M driving signals for generating the sensing signals. Furthermore, a touch controller is also provided.
    Type: Application
    Filed: January 7, 2011
    Publication date: May 10, 2012
    Applicant: NOVATEK MICROELECTRONICS CORP.
    Inventor: Chih-Chang Lai
  • Publication number: 20120105366
    Abstract: A positioning algorithm for edge portion of touch panel is provided. Dummy sensing lines surrounding a touch panel are provided. The x-axis and y-axis coordinate ranges of x-axis and y-axis sensing lines of the touch panel are determined. When the touch panel is touched, an x-axis sensing line, a y-axis sensing line, and a dummy sensing capacitance generated by the dummy sensing lines are located. Whether the corresponding x-axis sensing capacitance of the x-axis sensing line is smaller than or equal to the x-axis dummy sensing capacitance is determined. If so, an x-axis coordinate value is obtained according to the x-axis sensing capacitance and the dummy sensing capacitance. Whether the corresponding y-axis sensing capacitance of the y-axis sensing line is smaller than or equal to y-axis dummy sensing capacitance is determined. If so, a y-axis coordinate value is obtained according to the y-axis sensing capacitance and the dummy sensing capacitance.
    Type: Application
    Filed: October 18, 2011
    Publication date: May 3, 2012
    Applicant: NOVATEK MICROELECTRONICS CORP.
    Inventors: Chih-Chang LAI, Hsieh-Yi Wu
  • Publication number: 20120069506
    Abstract: An electronic device is provided. The electronic device includes a transparent glass substrate, an inductive charge element and a power storage element. The inductive charge element includes a transparent conductive coil and a transparent protective layer. The transparent conductive coil disposed on the transparent glass substrate is a spiral structure. The transparent protective layer covers the transparent conductive coil. The power storage element is electrically connected to the inductive charge element.
    Type: Application
    Filed: September 2, 2011
    Publication date: March 22, 2012
    Applicants: WINTEK CORPORATION, DONGGUAN MASSTOP LIQUID CRYSTAL DISPLAY CO., LTD.
    Inventors: Chih-Chang Lai, Hsiao-Hui Liao, Ting-Yu Chang
  • Publication number: 20120068947
    Abstract: A method for double click detection includes the following steps. Firstly whether first event is detected is determined, if so, first corresponding position is obtained, a period counting is triggered, and first flag is set. Then whether the period ends is judged; if not and the first flag exists, a counter is incremented and second flag is set when first ending event is detected; if not and the second flag exists, second corresponding position is obtained and third flag is set when second event is detected; if not and the third flag exists, the counter is incremented when second ending event is detected; if so, a double click event is determined when the incremented value is greater than a threshold and a distance between the first and the second positions is smaller a threshold.
    Type: Application
    Filed: September 15, 2011
    Publication date: March 22, 2012
    Applicant: NOVATEK MICROELECTRONICS CORP.
    Inventors: Chun-Chieh Chang, Hui-Hung Chang, Chih-Chang Lai
  • Publication number: 20120050190
    Abstract: A display apparatus including a display module and a protection structure is provided. The display module has an image display region and a trace disposing region surrounding the image display region. The protection structure is disposed on the display module and includes a cover, a first electrode layer, a substrate, a second electrode layer and a display medium layer. The first electrode layer is disposed on the cover and the location of the first electrode layer at least shields the trace disposing region. The substrate is disposed between the cover and the display module. The second electrode layer is disposed on the substrate corresponding to the first electrode layer. The location of the second electrode layer at least shields the trace disposing region. The display medium layer is disposed between the first electrode layer and the second electrode layer, wherein the display medium layer substantially surrounds the image display region.
    Type: Application
    Filed: March 12, 2011
    Publication date: March 1, 2012
    Applicants: WINTEK CORPORATION, WINTEK TECHNOLOGY(H.K) LTD.
    Inventors: Chih-Chang Lai, Ching-Fu Hsu
  • Patent number: 8106324
    Abstract: A touch panel including a first substrate, a second substrate, a first conductive layer, a second conductive layer, a third conductive layer, and a number of spacers is provided. The first substrate has an upper surface and a bottom surface opposite to the upper surface. The second substrate is parallel to the first substrate. The first conductive layer is disposed on the upper surface of the first substrate, while the second conductive layer is disposed on the bottom surface of the first substrate. The third conductive layer is disposed on the second substrate and interposed between the second substrate and the second conductive layer. The spacers are interposed between the second conductive layer and the third conductive layer. The touch panel has functions of multi-touch, contact-touch and non-contact touch, and the touch panel can be operated by conductive objects or dielectric objects.
    Type: Grant
    Filed: February 19, 2009
    Date of Patent: January 31, 2012
    Assignee: Wintek Corporation
    Inventors: Chih-Chang Lai, Nai-Heng Chang
  • Publication number: 20120007830
    Abstract: A touch panel having a touch sensing region and at least two connection regions around the touch sensing region is provided. The touch panel includes first conductive patterns, second conductive patterns, pads, and signal transmission lines. The first and second conductive patterns are disposed in the touch sensing region. Each first conductive pattern has a first end and an opposite second end. Each second conductive pattern has a third end and an opposite fourth end. The pads are respectively disposed in the connection regions. The first, second, third, and fourth ends are electrically connected to the pads in the corresponding connection region respectively through the signal transmission lines so that the distance from each first end, each second end, each third end, and each fourth end to the corresponding connection region is not greater than the distance from those to the other connection region.
    Type: Application
    Filed: July 8, 2011
    Publication date: January 12, 2012
    Applicants: WINTEK CORPORATION, DONGGUAN MASSTOP LIQUID CRYSTAL DISPLAY CO., LTD.
    Inventors: Hsiao-Hui Liao, Chih-Chang Lai, Kun-Chang Ho
  • Patent number: 8077968
    Abstract: An image processing method for individually processing an image of each pixel unit is provided. A red-green-blue color space signal to be input to a pixel unit is transformed into a first brightness signal. The red-green-blue color space signal includes a first red signal, a first green signal and a first blue signal. The first brightness signal is transformed into a second brightness signal to obtain a contrast factor, wherein the contrast factor is a ratio of the second brightness signal and the first brightness signal. The first red signal, the first green signal and the first blue signal are multiplied by the contrast factor to obtain a second red signal, a second green signal and a second blue signal. The second red signal, the second green signal and the second blue signal are performed by color enhancement to obtain a high contrast and colorful image.
    Type: Grant
    Filed: November 5, 2008
    Date of Patent: December 13, 2011
    Assignee: Wintek Corporation
    Inventors: Jyun-Sian Li, Chih-Chang Lai, Ching-Fu Hsu, Ruey-Shing Weng