Patents by Inventor Cheng-Fan Chang

Cheng-Fan Chang 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: 11955688
    Abstract: Aspects described herein include devices, wireless communication apparatuses, methods, and associated operations for heatsinks integrating millimeter wave and non-millimeter wave operation. In some aspects, an apparatus comprising a millimeter wave (mmW) module is provided. The apparatus includes at least one mmW antenna and at least one mmW signal node configured to communicate a data signal in association with the at least one mmW antenna. The apparatus further includes mixing circuitry configured to convert between the data signal and a mmW signal for communications associated with the at least one mmW antenna. The apparatus further includes a heatsink comprising a non-mmW antenna and a non-mmW feed point coupled to the non-mmW antenna. The non-mmW feed point is configured to provide a signal path to the non-mmW antenna for a non-mmW signal. The heatsink is mechanically coupled to the mmW module.
    Type: Grant
    Filed: September 24, 2021
    Date of Patent: April 9, 2024
    Assignee: QUALCOMM Incorporated
    Inventors: Cheng-Fan Wei, Chao-Kuei Chang, Yi-Hsiang Kung
  • Patent number: 7796214
    Abstract: A liquid crystal display includes a liquid crystal panel and a backlight module parallel to the liquid crystal panel. The backlight module includes a light guide plate, a light source and a flexible printed circuit. The light guide plate includes a light incident surface. The light source is provided adjacent to the light incident surface of the light guide plate. The flexible printed circuit includes a light source driving end. The light source driving end is electrically connected with the light source. The light source driving end is bent and is sandwiched between the liquid crystal panel and the light guide plate. The light source driving end abuts the light guide plate.
    Type: Grant
    Filed: March 5, 2008
    Date of Patent: September 14, 2010
    Assignee: Chimei Innolux Corporation
    Inventors: Cheng-Feng Tsai, Cheng-Fan Chang
  • Publication number: 20080218661
    Abstract: A liquid crystal display includes a liquid crystal panel and a backlight module parallel to the liquid crystal panel. The backlight module includes a light guide plate, a light source and a flexible printed circuit. The light guide plate includes a light incident surface. The light source is provided adjacent to the light incident surface of the light guide plate. The flexible printed circuit includes a light source driving end. The light source driving end is electrically connected with the light source. The light source driving end is bent and is sandwiched between the liquid crystal panel and the light guide plate. The light source driving end abuts the light guide plate.
    Type: Application
    Filed: March 5, 2008
    Publication date: September 11, 2008
    Inventors: Cheng-Feng Tsai, Cheng-Fan Chang
  • Publication number: 20080106670
    Abstract: An exemplary backlight module (20) used in a liquid crystal display (2) includes a frame (23) with a supporting board (231), a flexible printed circuit board (21), a light guide plate (27) received in the frame, and a fastening plate (222). The supporting board includes a side wall (233). The flexible printed circuit board includes a plurality of light emitting units (25) attached thereon. The light guide plate includes a light incident surface (26). The fastening plate is engaged with the side wall of the supporting board, thereby fixing the flexible printed circuit board on the frame with the light emitting units being located adjacent and opposite to the light incident surface of the light guide plate.
    Type: Application
    Filed: November 5, 2007
    Publication date: May 8, 2008
    Inventors: Cheng-Fan Chang, Chih-Ching Chang
  • Patent number: 7325963
    Abstract: An exemplary liquid crystal display includes an LCD panel (22); a light guide plate (234), a light source (231) disposed at a side of the light guide plate; a light-source cover (232) surrounding part of and holding the light source, the light-source cover defining a groove at one end thereof; and a frame (237) receiving the light guide plate, the light source and the light-source cover, the frame including an opening (2377), a side wall (2374) and an elastic protrusion (2371) formed on the sidewall (2374) near the opening. A main portion of the light-source cover is received in the frame through the opening of the frame and the light-source cover is attached to the frame by engagement of the elastic protrusion.
    Type: Grant
    Filed: December 28, 2005
    Date of Patent: February 5, 2008
    Assignee: Innolux Display Corp.
    Inventors: Cheng Fan Chang, Ching-Tung Hsieh
  • Publication number: 20070127263
    Abstract: An exemplary backlight module (10) includes a light guide plate (12) and an illuminator (14). The light guide plate includes a main body (120), and an end portion (121) outwardly flaring from the main body. The end portion includes a light incident surface (126). The illuminator is located adjacent to the light incident surface, and a horizontal central planar axis (142) of the illuminator and a horizontal central planar axis (127) of the light guide plate being in a same plane.
    Type: Application
    Filed: December 4, 2006
    Publication date: June 7, 2007
    Inventor: Cheng-Fan Chang
  • Publication number: 20070121026
    Abstract: An exemplary liquid crystal display (3) includes an elastic gasket (37), a liquid crystal panel (34), a frame (36), and a housing (32). The liquid crystal panel is surrounded by the elastic gasket, and the elastic gasket and the liquid crystal panel are all received in a frame (32). A top of the elastic gasket is higher than a top of the frame. The housing receives the frame, the elastic gasket, and the liquid crystal panel. An underside of a top wall of the housing abuts the top of the elastic gasket and be spaced from the top of the frame.
    Type: Application
    Filed: November 27, 2006
    Publication date: May 31, 2007
    Inventors: Hsueh-Tien Chang, Cheng-Fan Chang
  • Patent number: 7192177
    Abstract: A liquid crystal display module includes a frame, a light guide plate, a diffusion sheet, at least one prism sheet, a liquid crystal display panel, a first power/single printed circuit board, a second power/single printed circuit board, a light emitting element and a reflective sheet. The frame includes a contain portion and a groove. The contain portion contains the light guide plate. The diffusion sheet and the prism sheet are arranged on the light guide plate sequentially. The liquid crystal display panel is arranged on the prism sheet. The first power/single printed circuit board connects with the liquid crystal display panel and further includes a first optical film. The second power/single printed circuit board is contained in the groove. The light emitting element is arranged on the second power/single printed circuit board. The reflective sheet is adjacent to the frame opposite to the light guide plate.
    Type: Grant
    Filed: April 13, 2006
    Date of Patent: March 20, 2007
    Assignee: Innolux Display Corp.
    Inventors: Cheng-Fan Chang, Kuan-Sheng Chen
  • Publication number: 20060232999
    Abstract: A liquid crystal display module includes a frame, a light guide plate, a diffusion sheet, at least one prism sheet, a liquid crystal display panel, a first power/single printed circuit board, a second power/single printed circuit board, a light emitting element and a reflective sheet. The frame includes a contain portion and a groove. The contain portion contains the light guide plate. The diffusion sheet and the prism sheet are arranged on the light guide plate sequentially. The liquid crystal display panel is arranged on the prism sheet. The first power/single printed circuit board connects with the liquid crystal display panel and further includes a first optical film. The second power/single printed circuit board is contained in the groove. The light emitting element is arranged on the second power/single printed circuit board. The reflective sheet is adjacent to the frame opposite to the light guide plate.
    Type: Application
    Filed: April 13, 2006
    Publication date: October 19, 2006
    Inventors: Cheng-Fan Chang, Kuan-Sheng Chen