Patents by Inventor Pin Kao

Pin Kao 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: 7215076
    Abstract: The present invention provides a PDP structure comprising a first substrate, a second substrate and a Waffle barrier rib structure located between the first and second substrate. The Waffle barrier rib structure comprises three first barrier ribs having different width and a plurality of second barrier ribs perpendicular to the first barrier ribs. The second barrier ribs are located between the two first barrier ribs, and connect the wider structure of the two first barrier ribs. Therefore, discharge spaces are formed. Because of different width, the height difference of the barrier rib structure is formed after thermal process. Hence, gas can pass through the barrier ribs structure between the front and the back substrate sealed together.
    Type: Grant
    Filed: January 9, 2004
    Date of Patent: May 8, 2007
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Hsu-Pin Kao, Chung-Wang Chou, Ching-Hui Lin, Sheng-Wen Hsu
  • Publication number: 20070065008
    Abstract: The present invention discloses a method and an apparatus for applying a dynamic contrast expansion technique to plasma display panels through performing a gamma conversion for the inputted image to convert the relationship of the brightness and gray level of the inputted image into a linear relation, performing a subtraction for the gray level value of the image to maintain the image at its smallest color deviation, analyzing the image property histogram to compute the maximum gray level and the minimum gray level required for carrying out the image contrast expansion and obtaining an image contrast expansion gain, and adopting an average of several previously inputted image contrast expansion gains and a current image contrast expansion gain as the contrast expansion gain used in the actual contrast expansion gain formula, so as to compute a new outputted gray level value after the image contrast expansion is performed.
    Type: Application
    Filed: April 25, 2006
    Publication date: March 22, 2007
    Applicant: MARKETECH INTERNATIONAL CORP.
    Inventors: Hsu-Pin Kao, Yi-Sheng Yu, Yi-Chia Shan, Tsan-Hung Tsai
  • Patent number: 7193587
    Abstract: A plasma display panel with color space transformation device is described. The plasma display panel with color space transformation device has a digital board, a display control circuit and a color plasma display panel. The digital board has a color space transformation device to transform the color space of the color plasma display panel into a new color space according to a video specification of images or into a new color space according to a user requirement. The digital board further modifies the images to fit the new color space. The color plasma display panel shows the modified images in the new color space.
    Type: Grant
    Filed: September 22, 2003
    Date of Patent: March 20, 2007
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Yi-Sheng Yu, Hsu-Pin Kao, Yi-Chia Shan, Ching-Hui Lin
  • Patent number: 7126563
    Abstract: Brightness correction apparatus and method for a plasma display, where the non-linear relationship between the gray scale and the brightness of the plasma display is considered. The brightness error is measured to build up a brightness error table. When the gray scale data of the currently displaying pixel is received, the brightness error diffusion method is applied. The weighted display brightness error of the neighboring pixel is incorporated for calculation to obtain an optimal display result. When the modified output gray scale data is derived by calculation, the brightness error table is looked up, and the display brightness error of the currently displaying pixel is thus saved to provide modification calculation for other pixels.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: October 24, 2006
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Chun-Hsu Lin, Hsu-Pin Kao, Yi-Chia Shan, Kuang-Lang Chen
  • Patent number: 7116060
    Abstract: A plasma display panel having a plurality of bi-discharge sources comprising a front substrate and a rear substrate coupled in parallel; a plurality of first electrodes, second electrodes and third electrodes in parallel disposed over the front substrate along a first direction; a plurality of rear substrate walls disposed in parallel over the rear substrate along a second direction orthogonal to the first direction. Each of the plurality of second electrodes is centered between each of the plurality of first and third electrodes, which leads to a bi-discharge source. In each of the plurality of second electrodes, one side is induced as having a plurality of positive charges and the other side with a plurality of negative charges, which are equal amount and thus result in charge counterbalance on the second electrode.
    Type: Grant
    Filed: December 9, 2004
    Date of Patent: October 3, 2006
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Chun-Hsu Lin, Po-Kun Hsieh, Hsu-Pin Kao
  • Publication number: 20060197987
    Abstract: A method for adjusting an input image on the basis of the characteristics of a display system is provided. The input image includes N color elements and the display system is capable of displaying P second gray levels. P sets of first conversion coefficients related to the characteristics of the display system are beforehand stored in a look-up table. The method according to this invention first calculates an estimated gray level according to the input image and a set of predetermined second conversion coefficients. Then, a set of third conversion coefficients corresponding to the estimated gray level is selected from the look-up table. A final gray level is calculated on the basis of the set of third conversion coefficients. Finally, the final gray level and the N color components are combined into an adjusted image to replace the input image, whereby the input image is adjusted.
    Type: Application
    Filed: August 8, 2005
    Publication date: September 7, 2006
    Inventors: Hsu-Pin Kao, Yi-Sheng Yu, Yung-Sheng Hsu, Yi-Chia Shan
  • Publication number: 20060182366
    Abstract: This invention provides a dynamic image adjusting apparatus for dynamically adjusting the contrast of a first image signal which includes a plurality of pixels. The adjusting apparatus includes a first transformation module, an operation module, and a second transformation module. The first transformation module receives the first image signal for generating a plurality of adjusting signals, wherein each pixel of the first image signal corresponds to one of the plurality of adjusting signals. The oepration module is coupled to the first transformation module and receives a first set of adjusting signals of the plurality of adjusting signals to generate a first gain curve. The second transformation module is coupled to the operation module and the first transformation module, and generates a second image signal according to the first gain curve and the plurality of adjusting signals.
    Type: Application
    Filed: August 8, 2005
    Publication date: August 17, 2006
    Inventors: Kai-Hsiang Hsu, Hsu-Hung Chen, Hsu-Pin Kao, Yi-Sheng Yu
  • Publication number: 20060181741
    Abstract: The invention provides an apparatus for dynamically adjusting the saturation of an image signal consisting of a plurality of pixels. The apparatus includes a first transformation module, an operation module, a gain module, an adjustment module and a second transformation module. The first transformation module transforms the pixels of the image signal into a plurality of intermediate signals, where each of the intermediate signals has a respective saturation value. The intermediate signals are adjusted in accordance with a gain signal determined by a histogram relative to the saturation distribution of the intermediate signals. The adjusted intermediate signals are transformed back into the pixels of the image signal, thereby the saturation of the image signal is adjusted.
    Type: Application
    Filed: August 8, 2005
    Publication date: August 17, 2006
    Inventors: Kai-Hsiang Hsu, Hsu-Hung Chen, Hsu-Pin Kao, Yi-Sheng Yu
  • Patent number: 7088316
    Abstract: A color adjustment device and method for the plasma display panel. The color adjustment device comprises a look up table and an error diffusion circuit. Wherein, the look up table is used to store a plurality of gray scale data, select one corresponding data from the plurality of gray scale data according to a received gray scale input value as an output. The error diffusion circuit receives the gray scale data output from the look up table, and achieves the objective of improving the color adjustment precision by using an error diffusion compensation method.
    Type: Grant
    Filed: July 31, 2002
    Date of Patent: August 8, 2006
    Assignee: Chunghwa PIcture Tube, Ltd.
    Inventors: Hsu-Pin Kao, Yi-Chia Shan, Chun-Hsu Lin, Yi-Sheng Yu
  • Publication number: 20060125406
    Abstract: A plasma display panel having a plurality of bi-discharge sources comprising a front substrate and a rear substrate coupled in parallel; a plurality of first electrodes, second electrodes and third electrodes in parallel disposed over the front substrate along a first direction; a plurality of rear substrate walls disposed in parallel over the rear substrate along a second direction orthogonal to the first direction. Each of the plurality of second electrodes is centered between each of the plurality of first and third electrodes, which leads to a bi-discharge source. In each of the plurality of second electrodes, one side is induced as having a plurality of positive charges and the other side with a plurality of negative charges, which are equal amount and thus result in charge counterbalance on the second electrode.
    Type: Application
    Filed: December 9, 2004
    Publication date: June 15, 2006
    Inventors: Chun-Hsu Lin, Po-Kun Hsieh, Hsu-Pin Kao
  • Patent number: 7034459
    Abstract: A front panel structure of Plasma Display Panel (PDP) is disclosed sequentially comprising a first electrode, a second electrode and a third electrode, wherein the second electrode has transparent electrodes located on both top and bottom sides of a bus electrode. A first discharge center is formed between a transparent electrode of the first electrode and one transparent electrode of the second electrode. A second discharge center is formed between the other transparent electrode of the second electrode and a transparent electrode of the third electrode. Therefore, an emitting cell of PDP has two discharge centers. To make the discharge more stable, we choose the first electrode and the third electrode to become the scan electrodes, or to form a thicker dielectric layer or discharge deactivation film below the second bus electrode as a scan electrode.
    Type: Grant
    Filed: June 14, 2004
    Date of Patent: April 25, 2006
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Chun-Hsu Lin, Hsu-Pin Kao, Ching-Hui Lin
  • Patent number: 6987357
    Abstract: A driving electrode structure of a plasma display panel is described. The driving electrode structure has a driving electrode located in one luminant cell of each pixel. The driving electrode is formed on a transparent electrode and separated by a distance from the side of the transparent electrode adjacent to the edge of the luminant cells. The driving electrode has two branches coupled to a main electrode or a side electrode at the side of the transparent electrode adjacent to the edge of luminant cells. The driving electrode approximates the discharge center of the luminant cell to improve the driving characteristic.
    Type: Grant
    Filed: January 2, 2004
    Date of Patent: January 17, 2006
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Hsu-Pin Kao, Yuan-Chi Lin, Ching-Hui Lin, Kuang-Lang Chen
  • Publication number: 20050248506
    Abstract: The invention discloses an apparatus for increasing the display gray levels. The apparatus includes a signal transformation circuit, an error diffusion circuit, and an operation circuit. According to a first predetermined manner, the signal transformation circuit transforms a set of image signals into a set of transformed signals. The error diffusion circuit receives the set of transformed signals and generates a set of diffused signals according to a judging rule. The operation circuit receives the set of diffused signals and generates a set of output image signals according to a second predetermined manner and a predetermined operational rule.
    Type: Application
    Filed: April 4, 2005
    Publication date: November 10, 2005
    Inventors: Hsu-Pin Kao, Hsu-Chia Kao, Yi-Chia Shan, Yi-Sheng Yu
  • Publication number: 20050249410
    Abstract: The invention provides an image adjusting apparatus for receiving a set of input signals transmitted from a video interface, which is used for receiving a plurality of sets of input signals. The image adjusting apparatus is further used for automatically adjusting the set of input signals to generate a set of output signals. The image adjusting apparatus includes an operation module, a storage module, an offset module and a gain module. The operation module receives a test image to generate a plurality of adjusting signals. The storage module stores the adjusting signals. The offset module transforms, according to the adjusting signals, the set of input signals into a set of temporary signals. Moreover, the gain module transforms, according to the plurality of adjusting signals, the set of temporary signals into the set of output signals.
    Type: Application
    Filed: April 5, 2005
    Publication date: November 10, 2005
    Inventors: Hsu-Chia Kao, Hsu-Pin Kao, Chun-Yen Yang, Hsuan-Ku Chu
  • Publication number: 20050237528
    Abstract: A heating apparatus having a support base and a microplate having a first surface and an opposing second surface. The microplate being positioned adjacent the support base. A plurality of wells are formed in the first surface of the microplate and are each sized to receive an assay therein. A transparent window is positioned adjacent the microplate opposing the support base. A transparent heating element is formed on the transparent window and is operable to heat the transparent window. A control system operably controls the transparent heating element.
    Type: Application
    Filed: March 22, 2005
    Publication date: October 27, 2005
    Inventors: Mark Oldham, H. Pin Kao
  • Patent number: 6911785
    Abstract: A plasma display panel with a gray level white balance device is described. The plasma display panel with a gray level white balance device has a digital board, a display control circuit and a color plasma display panel. The digital board utilizes the gray level white balance device to modify gray levels of the image to fit the gray levels of the color plasma display panel according to a gray level lookup table. The gray level lookup table is established by measuring the color temperature and color deviation of the color plasma display panel at different gray levels. Curve fitting or linear regression techniques further utilize to enhance the resolution of the gray level lookup table.
    Type: Grant
    Filed: September 22, 2003
    Date of Patent: June 28, 2005
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Yi-Sheng Yu, Hsu-Pin Kao, Yi-Chia Shan, Hui-Chen Lin
  • Patent number: 6906797
    Abstract: Devices are provided comprising reflecting channels for directing horizontally a vertical light beam through a multiplicity of streams. The devices provide particular applications in microfluidics, where streams of narrow cross-sectional dimensions are involved. Desirably, channels having 45° walls are provided for directing the beams and where the streams are divided by walls, the walls are at substantially 90°. Methods of fabrication of the devices are provided.
    Type: Grant
    Filed: September 13, 2000
    Date of Patent: June 14, 2005
    Assignee: Aclara Biosciences, Inc.
    Inventors: Hung Pin Kao, Xing Yang
  • Patent number: 6900591
    Abstract: A driving electrode structure of a plasma display panel for improving operation margin is described. A plurality openings is formed in a transparent electrode according to the driving characteristics of fluorescent layer of each luminous cell to adjust the effective area of the transparent electrode in each luminous cell, thereby increasing the operation margin of the sustaining voltage.
    Type: Grant
    Filed: February 25, 2003
    Date of Patent: May 31, 2005
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Wen-Rung Huang, Hsu-Pin Kao, Yu-Ju Chen, Ching-Chung Cheng, Yen-Ting Shen
  • Patent number: 6864632
    Abstract: An front plate structure for a plasma display panel is described. In accordance with the present invention, a protruding space pad structure is formed on the dielectric layer or protective layer of the front plate. The space pad is used to form the height difference on the surface of the front plate, about 3 ?m to 15 ?m. The height difference forms gas channels between the front plate and the discharge region to improve the performance of the vacuuming and refilling gas steps.
    Type: Grant
    Filed: December 9, 2002
    Date of Patent: March 8, 2005
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Hsu-Pin Kao, Hsiang-Hui Tseng, Sheng-Wen Hsu, Ching-Chung Cheng
  • Patent number: D525894
    Type: Grant
    Filed: September 14, 2005
    Date of Patent: August 1, 2006
    Assignee: Longsun Technologies Co., Ltd.
    Inventors: Liang-Chieh Chiang, Pei-Chun Ko, Wan-Jung Wu, Wen-Shou Wang, Yu-Pin Kao, Jack C. Chu