Patents by Inventor Hun-Wei Chen

Hun-Wei 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: 8203514
    Abstract: A color sequential liquid crystal display (LCD) device is disclosed in the present invention. The color sequential LCD device includes an LCD panel, a backlight module, an image processing circuit and a timing control circuit. The image processing circuit is utilized for performing image processing on an image data to generate a frame data with full color information, and sorting the frame data to generate a plurality of frame data based on a predetermined color sequence. The timing controller is utilized for controlling the LCD panel and the backlight module to display the plurality of field data outputted by the image processing circuit, so as to achieve color mixing in time domain.
    Type: Grant
    Filed: February 11, 2009
    Date of Patent: June 19, 2012
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Ying-Chung Su, Shian-Jun Chiou, Jhen-Shen Liao, Wen-Chih Tai, Hun-Wei Chen, Ming-Ta Hsieh
  • Patent number: 8193725
    Abstract: A backlight module control system includes a plurality of backlight sub-modules, a control signals output unit, a voltage converter and a plurality of current control units. The control signals output circuit is for providing a voltage control signal, a current control signal and a plurality of PWM signals; the voltage converter is coupled to the control signals output circuit and the backlight sub-modules, and is for outputting an output voltage to the backlight sub-modules according to the voltage control signal; the current control units are coupled to the backlight sub-modules, respectively, and each current control unit is for determining a current of its corresponding backlight sub-module according to the current control signal, and each current control unit is further utilized for determining whether its corresponding backlight sub-module is enabled or not according to its corresponding PWM signal. In addition, only one backlight module is enabled at a same time.
    Type: Grant
    Filed: April 16, 2009
    Date of Patent: June 5, 2012
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Ke-Horng Chen, Chun-Yu Hsieh, Chia-Lin Liu, Chi-Neng Mo, Hun-Wei Chen, Ming-Tsung Ho
  • Patent number: 8120573
    Abstract: In a line data sorting unit of a color sequential timing controlling circuit, inputted pixels/sub-pixels are buffered, sorted, and outputted. The pixels/sub-pixels are also sorted by a color data sorting unit according to the color sequential method and colors of sub-pixels so that a driving controller writes sorted sub-pixels of various colors onto a display panel within a short time variation to generate a full-color frame. The line data sorting unit buffers pixels/sub-pixels as a matrix, and loads the buffered pixels/sub-pixels line-by-line with respect to the matrix, where the pixels/sub-pixels are arranged and read in parallel according to sizes of lines of the matrix and a number of simultaneously-activated gate lines of a scanning driver.
    Type: Grant
    Filed: January 19, 2010
    Date of Patent: February 21, 2012
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Shian-Jun Chiou, Wen-Chih Tai, Hun-Wei Chen
  • Publication number: 20110102473
    Abstract: A color sequential display apparatus and a driving method thereof are provided. The color sequential display apparatus includes an image processing circuit and a display panel coupling to the image processing circuit. The image processing circuit is used to receive an image signal of a color frame to generate output signals of a plurality of fields. To be more specific, the image signal of the color frame is categorized and segmented by the image processing circuit according to a color information and the fields to generate the output signals of the fields. Besides, the output signals of the fields are further transmitted by the image processing circuit according to a predetermined color sequence. On the other hand, the display panel has a plurality of display regions. Each of the display regions receives the output signal of the corresponding field to display.
    Type: Application
    Filed: January 8, 2010
    Publication date: May 5, 2011
    Applicant: CHUNGHWA PICTURE TUBES, LTD.
    Inventors: Shian-Jun Chiou, Hun-Wei Chen
  • Publication number: 20110063525
    Abstract: In a line data sorting unit of a color sequential timing controlling circuit, inputted pixels/sub-pixels are buffered, sorted, and outputted. The pixels/sub-pixels are also sorted by a color data sorting unit according to the color sequential method and colors of sub-pixels so that a driving controller writes sorted sub-pixels of various colors onto a display panel within a short time variation to generate a full-color frame. The line data sorting unit buffers pixels/sub-pixels as a matrix, and loads the buffered pixels/sub-pixels line-by-line with respect to the matrix, where the pixels/sub-pixels are arranged and read in parallel according to sizes of lines of the matrix and a number of simultaneously-activated gate lines of a scanning driver.
    Type: Application
    Filed: January 19, 2010
    Publication date: March 17, 2011
    Inventors: Shian-Jun Chiou, Wen-Chih Tai, Hun-Wei Chen
  • Publication number: 20100264847
    Abstract: A backlight module control system includes a plurality of backlight sub-modules, a control signals output unit, a voltage converter and a plurality of current control units. The control signals output circuit is for providing a voltage control signal, a current control signal and a plurality of PWM signals; the voltage converter is coupled to the control signals output circuit and the backlight sub-modules, and is for outputting an output voltage to the backlight sub-modules according to the voltage control signal; the current control units are coupled to the backlight sub-modules, respectively, and each current control unit is for determining a current of its corresponding backlight sub-module according to the current control signal, and each current control unit is further utilized for determining whether its corresponding backlight sub-module is enabled or not according to its corresponding PWM signal. In addition, only one backlight module is enabled at a same time.
    Type: Application
    Filed: April 16, 2009
    Publication date: October 21, 2010
    Inventors: Ke-Horng Chen, Chun-Yu Hsieh, Chia-Lin Liu, Chi-Neng Mo, Hun-Wei Chen, Ming-Tsung Ho
  • Publication number: 20100127959
    Abstract: A color sequential liquid crystal display (LCD) device is disclosed in the present invention. The color sequential LCD device includes an LCD panel, a backlight module, an image processing circuit and a timing control circuit. The image processing circuit is utilized for performing image processing on an image data to generate a frame data with full color information, and sorting the frame data to generate a plurality of frame data based on a predetermined color sequence. The timing controller is utilized for controlling the LCD panel and the backlight module to display the plurality of field data outputted by the image processing circuit, so as to achieve color mixing in time domain.
    Type: Application
    Filed: February 11, 2009
    Publication date: May 27, 2010
    Inventors: Ying-Chung Su, Shian-Jun Chiou, Jhen-Shen Liao, Wen-Chih Tai, Hun-Wei Chen, Ming-Ta Hsieh
  • Publication number: 20090105974
    Abstract: A light emitting component control device includes a voltage detecting unit, a storage device and a microprocessor. The voltage detecting unit is used for detecting a voltage of at least one light emitting component. The storage device is used for storing a look-up table that comprises a corresponding relation between a plurality of voltages of the light emitting component and a plurality of luminance levels of the light emitting component. The processor is coupled to the voltage detecting unit and the storage device, and is used for determining a luminance level of the light emitting component according to the voltage and the corresponding relation.
    Type: Application
    Filed: March 10, 2008
    Publication date: April 23, 2009
    Inventors: Tzu-Pin Lin, Hun-Wei Chen, Shih-Min Wu
  • Patent number: 7334903
    Abstract: A light source module is provided. The light source module includes a reflector, a light source, a transparent cover, a fluorescent material layer, and an optical lens. The light source is disposed inside the reflector, and the light source is suitable for emitting light including white light. The light source is enveloped with the transparent cover and the reflector. The fluorescent material layer is disposed on the transparent cover and the light emitted from the light source is suitable for exciting the fluorescent material layer to emit red light. The optical lens is disposed on an optical path of the light source, and the transparent cover is located between the optical lens and the light source. By utilizing the aforementioned structures, the intensity of the red light can be increased. Moreover, an optical projection system is also provided.
    Type: Grant
    Filed: August 3, 2005
    Date of Patent: February 26, 2008
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Hun-Wei Chen, Shih-Min Wu, Chi-Neng Mo
  • Publication number: 20070171379
    Abstract: A system of changing environment influence on display is applied to a projection system. A reflection device is disposed between light management module and lenses module and configured for preventing environment light from the lenses module, so as to change the brightness of dark field and enhance contrast for display screen.
    Type: Application
    Filed: January 26, 2006
    Publication date: July 26, 2007
    Inventors: Hun-Wei Chen, Shih-Min Wu, Chi-Neng Mo
  • Publication number: 20070002282
    Abstract: A light source module is provided. The light source module includes a reflector, a light source, a transparent cover, a fluorescent material layer, and an optical lens. The light source is disposed inside the reflector, and the light source is suitable for emitting light including white light. The light source is enveloped with the transparent cover and the reflector. The fluorescent material layer is disposed on the transparent cover and the light emitted from the light source is suitable for exciting the fluorescent material layer to emit red light. The optical lens is disposed on an optical path of the light source, and the transparent cover is located between the optical lens and the light source. By utilizing the aforementioned structures, the intensity of the red light can be increased. Moreover, an optical projection system is also provided.
    Type: Application
    Filed: August 3, 2005
    Publication date: January 4, 2007
    Inventors: Hun-Wei Chen, Shih-Min Wu, Chi-Neng Mo