Patents by Inventor Der-Chin Weng

Der-Chin Weng 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).

  • Backlight device
    Patent number: 7154469
    Abstract: A backlight device that includes a transparent substrate, a plurality of protrusions, a first layer of transparent material, a second layer of transparent material and a light source. The protrusions are provided on the substrate. The first layer of transparent material is attached to the substrate. Also, the first layer of transparent material has an index of refraction smaller than the substrate. The second layer of transparent material is attached to the first layer of transparent material, while the second layer of transparent material has particles inside. The light source emits light. The light is scattered by the protrusions, propagates through the substrate and the first layer of material, propagates into the second layer of material, is scattered by the particles of the second layer of material, and then propagates out from the backlight device.
    Type: Grant
    Filed: May 14, 2004
    Date of Patent: December 26, 2006
    Assignee: Acer Communications and Multimedia Inc.
    Inventor: Der-Chin Weng
  • Backlight device
    Publication number: 20040212581
    Abstract: A backlight device that includes a transparent substrate, a plurality of protrusions, a first layer of transparent material, a second layer of transparent material and a light source. The protrusions are provided on the substrate. The first layer of transparent material is attached to the substrate. Also, the first layer of transparent material has an index of refraction smaller than the substrate. The second layer of transparent material is attached to the first layer of transparent material, while the second layer of transparent material has particles inside. The light source emits light. The light is scattered by the protrusions, propagates through the substrate and the first layer of material, propagates into the second layer of material, is scattered by the particles of the second layer of material, and then propagates out from the backlight device.
    Type: Application
    Filed: May 14, 2004
    Publication date: October 28, 2004
    Applicant: ACER COMMUNICATIONS AND MULTIMEDIA INC.
    Inventor: Der-Chin Weng
  • Backlight device
    Patent number: 6801184
    Abstract: A backlight device that includes a transparent substrate, a plurality of protrusions, a first layer of transparent material, a second layer of transparent material and a light source. The protrusions are provided on the substrate. The first layer of transparent material is attached to the substrate. Also, the first layer of transparent material has an index of refraction smaller than the substrate. The second layer of transparent material is attached to the first layer of transparent material, while the second layer of transparent material has particles inside. The light source emits light. The light is scattered by the protrusions, propagates through the substrate and the first layer of material, propagates into the second layer of material, is scattered by the particles of the second layer of material, and then propagates out from the backlight device.
    Type: Grant
    Filed: February 26, 2001
    Date of Patent: October 5, 2004
    Assignee: Benq Corporation
    Inventor: Der-Chin Weng
  • Backlight device
    Publication number: 20020003524
    Abstract: A backlight device that includes a transparent substrate, a plurality of protrusions, a first layer of transparent material, a second layer of transparent material and a light source. The protrusions are provided on the substrate. The first layer of transparent material is attached to the substrate. Also, the first layer of transparent material has an index of refraction smaller than the substrate. The second layer of transparent material is attached to the first layer of transparent material, while the second layer of transparent material has particles inside. The light source emits light. The light is scattered by the protrusions, propagates through the substrate and the first layer of material, propagates into the second layer of material, is scattered by the particles of the second layer of material, and then propagates out from the backlight device.
    Type: Application
    Filed: February 26, 2001
    Publication date: January 10, 2002
    Applicant: Acer Communications and multimedia Inc.
    Inventor: Der-Chin Weng