Patents by Inventor Yi-Wen Chang

Yi-Wen 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: 10962827
    Abstract: A back-light module includes a substrate, a plurality of light-emitting devices, and an optical film. The light-emitting devices are disposed on the substrate and are arranged in a rectangular array along an X direction and a Y direction. The optical film is disposed on the light-emitting devices and includes a plurality of pyramid structures arranged in arrays. Each pyramid structure includes four bottom edges. An angle between a bottom edge and the X direction and an angle between another bottom edge and the Y direction are greater than 0 degree and less than 45 degrees.
    Type: Grant
    Filed: August 22, 2019
    Date of Patent: March 30, 2021
    Assignee: Au Optronics Corporation
    Inventor: Yi-Wen Chang
  • Publication number: 20200174317
    Abstract: A back-light module includes a substrate, a plurality of light-emitting devices, and an optical film. The light-emitting devices are disposed on the substrate and are arranged in a rectangular array along an X direction and a Y direction. The optical film is disposed on the light-emitting devices and includes a plurality of pyramid structures arranged in arrays. Each pyramid structure includes four bottom edges. An angle between a bottom edge and the X direction and an angle between another bottom edge and the Y direction are greater than 0 degree and less than 45 degrees.
    Type: Application
    Filed: August 22, 2019
    Publication date: June 4, 2020
    Applicant: Au Optronics Corporation
    Inventor: Yi-Wen Chang
  • Publication number: 20200103687
    Abstract: A display includes a display module, a shutter module, and a backlight module. The display module includes a first liquid crystal layer, first pixel electrodes, and a color filter layer. The first pixel electrodes and the color filter layer are located on opposite sides or on the same side of the first liquid crystal layer. The shutter module includes a second crystal layer, second pixel electrodes, and a common electrode layer. The second liquid crystal layer is interposed between the second pixel electrodes and the common electrode layer, and the shutter module is divided into dimming regions. The second pixel electrodes in each of the dimming regions are held at the same voltage. The backlight module provides light to the shutter module and the display module. The shutter module and the display module are located on the same side of the backlight module.
    Type: Application
    Filed: August 16, 2019
    Publication date: April 2, 2020
    Inventor: Yi-Wen CHANG
  • Patent number: 10134322
    Abstract: A pixel structure, including a first color pixel, a second color pixel and a third color pixel. The first color pixel includes a first-color normal-viewing sub-pixel and at least one first-color side-viewing sub-pixel. The second color pixel includes a second-color normal-viewing sub-pixel and at least one second-color side-viewing sub-pixel. The third color pixel includes a third-color normal-viewing sub-pixel and at least one third-color side-viewing sub-pixel. First color light emitted from the first-color normal-viewing sub-pixel, second color light emitted from the second-color side-viewing sub-pixel, and third color light emitted from the third-color side-viewing sub-pixel are mixed to obtain a white emission in a first side view direction.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: November 20, 2018
    Assignee: AU OPTRONICS CORPORATION
    Inventor: Yi-Wen Chang
  • Publication number: 20170337863
    Abstract: A pixel structure, including a first color pixel, a second color pixel and a third color pixel. The first color pixel includes a first-color normal-viewing sub-pixel and at least one first-color side-viewing sub-pixel. The second color pixel includes a second-color normal-viewing sub-pixel and at least one second-color side-viewing sub-pixel. The third color pixel includes a third-color normal-viewing sub-pixel and at least one third-color side-viewing sub-pixel. First color light emitted from the first-color normal-viewing sub-pixel, second color light emitted from the second-color side-viewing sub-pixel, and third color light emitted from the third-color side-viewing sub-pixel are mixed to obtain a white emission in a first side view direction.
    Type: Application
    Filed: May 8, 2017
    Publication date: November 23, 2017
    Inventor: Yi-Wen CHANG
  • Patent number: 9201184
    Abstract: A light guide plate includes a plate body and a light incident portion, wherein the plate body has a top plate surface. The light incident portion is formed on a side of the plate body and has a thickness increasing as the light incident portion extends away from a center of the plate body. In addition, the light incident portion has a top surface connected to the top plate surface and lifted from the top plate surface to include an angle with the top plate surface. The top surface includes a first incline and a second incline, wherein the first incline connects to a side of the top plate surface and has a first average slope. The second incline has a side connected to a side of the first incline opposite to the top plate surface and has a second average slope larger than the first average slope.
    Type: Grant
    Filed: December 24, 2013
    Date of Patent: December 1, 2015
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Yi-Wen Chang, Fu-Cheng Fan
  • Patent number: 8974104
    Abstract: A backlight module includes a light guide plate, at least one light source, and a light-reflecting plate. The light guide plate includes a light-emitting surface, a bottom surface, a light-incident surface, and a guiding tilt surface. One end of guiding tilt surface and light-emitting surface are intersected at a first boundary, and the other end connects to a top edge of light-incident surface. The guiding tilt surface extends toward a direction of protruding the light-emitting surface. The horizontal distance between the first boundary and light-incident surface is L. The light-reflecting plate is disposed under the bottom surface. When the horizontal distance d between light-incident surface and an end of light-reflecting plate near light-incident surface is less than L, the horizontal distance between a vertical projection of the end on light-emitting surface and first boundary is not more than 0.5 mm. When d is more than L, x is at least 0.5 mm.
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: March 10, 2015
    Assignee: AU Optronics Corporation
    Inventors: Yi-Wen Chang, Fu-Cheng Fan
  • Patent number: 8827530
    Abstract: A light guide plate includes a main body portion and inclined light guide portions having at least one recess. The main body portion has a first light incident surface, a bottom surface that is adjacent to the first light incident surface, and a light emitting surface that is opposite to the bottom surface. The inclined light guide portions disposed on the main body portion have a second light incident surface and at least one inclined surface. The second light incident surface is connected to the first light incident surface of the main body portion. The inclined surface is connected to the light emitting surface of the main body portion. At least one recess is formed between the inclined light guide portions. In addition, a wedge-shaped body can further be formed between the main body portion and the inclined light guide portions.
    Type: Grant
    Filed: March 19, 2012
    Date of Patent: September 9, 2014
    Assignee: Au Optronics Corporation
    Inventors: Yi-Wen Chang, Fu-Cheng Fan
  • Publication number: 20140185321
    Abstract: A light guide plate includes a plate body and a light incident portion, wherein the plate body has a top plate surface. The light incident portion is formed on a side of the plate body and has a thickness increasing as the light incident portion extends away from a center of the plate body. In addition, the light incident portion has a top surface connected to the top plate surface and lifted from the top plate surface to include an angle with the top plate surface. The top surface includes a first incline and a second incline, wherein the first incline connects to a side of the top plate surface and has a first average slope. The second incline has a side connected to a side of the first incline opposite to the top plate surface and has a second average slope larger than the first average slope.
    Type: Application
    Filed: December 24, 2013
    Publication date: July 3, 2014
    Applicant: AU Optronics Corporation
    Inventors: Yi-Wen Chang, Fu-Cheng Fan
  • Publication number: 20130308337
    Abstract: A backlight module includes a light source, a photoluminescence layer, and an optical film. The light source is used to provide a light beam. The photoluminescence layer is excited by the light beam from the light source and generates an excitation light. The optical film overlaps the photoluminescence layer along a vertical projective direction. The optical film includes a substrate and a plurality of two-dimensional symmetrical micro-structures. The two-dimensional symmetrical micro-structures are disposed on at least one surface of the substrate. The excitation light is emitted through the two-dimensional symmetrical micro-structures.
    Type: Application
    Filed: November 1, 2012
    Publication date: November 21, 2013
    Applicant: AU OPTRONICS CORP.
    Inventors: Yi-Wen Chang, Fu-Cheng Fan
  • Publication number: 20130044514
    Abstract: A light guide plate includes a main body portion and inclined light guide portions having at least one recess. The main body portion has a first light incident surface, a bottom surface that is adjacent to the first light incident surface, and a light emitting surface that is opposite to the bottom surface. The inclined light guide portions disposed on the main body portion have a second light incident surface and at least one inclined surface. The second light incident surface is connected to the first light incident surface of the main body portion. The inclined surface is connected to the light emitting surface of the main body portion. At least one recess is formed between the inclined light guide portions. In addition, a wedge-shaped body can further be formed between the main body portion and the inclined light guide portions.
    Type: Application
    Filed: March 19, 2012
    Publication date: February 21, 2013
    Applicant: AU Optronics Corporation
    Inventors: Yi-Wen CHANG, Fu-Cheng FAN
  • Publication number: 20120300496
    Abstract: A backlight module includes a light guide plate, at least one light source, and a light-reflecting plate. The light guide plate includes a light-emitting surface, a bottom surface, a light-incident surface, and a guiding tilt surface. One end of guiding tilt surface and light-emitting surface are intersected at a first boundary, and the other end connects to a top edge of light-incident surface. The guiding tilt surface extends toward a direction of protruding the light-emitting surface. The horizontal distance between the first boundary and light-incident surface is L. The light-reflecting plate is disposed under the bottom surface. When the horizontal distance d between light-incident surface and an end of light-reflecting plate near light-incident surface is less than L, the horizontal distance between a vertical projection of the end on light-emitting surface and first boundary is not more than 0.5 mm. When d is more than L, x is at least 0.5 mm.
    Type: Application
    Filed: April 18, 2012
    Publication date: November 29, 2012
    Applicant: AU OPTRONICS CORPORATION
    Inventors: Yi-Wen Chang, Fu-Cheng Fan
  • Publication number: 20100235426
    Abstract: A server for providing presentity status is adapted to provide the latest status of a presentity to a watcher. The presentity and the watcher are respectively connected to a connection server through a network. The presentity belongs to at least one group, and the watcher also belongs to at least one group. The connection server can detect the latest status of the groups to which the presentity belongs. The server for providing presentity status automatically determines the provision of the status of the presentity to the watcher based on whether the respective authority values of the groups to which the presentity belongs and the respective authority values of the groups to which the watcher belongs satisfy a preset condition. When the preset condition is satisfied, the server for providing presentity status also sends the latest status of other presentities that belong to the same groups as the presentity and that are subscribed to by the watcher to the watcher.
    Type: Application
    Filed: March 28, 2007
    Publication date: September 16, 2010
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventor: Yi-Wen Chang
  • Publication number: 20090194208
    Abstract: A bag having a mosaic graphic of novel visual effect includes a bag and an image presenting layer attached to the surface of the bag. The bag is a container for holding goods. The image presenting layer includes a base layer and a plurality of image presenting units fastened to the base layer. Each of the image presenting units has a single selected color on the surface thereof. By arranging multiple numbers of the image presenting units on the base layer and through the single selected color showing on the surface thereof a desired graphic can be presented. Thus by coupling the bag and the mosaic art the bag has an artistic, good looking and amusing novel visual effect.
    Type: Application
    Filed: February 1, 2008
    Publication date: August 6, 2009
    Inventor: YI WEN CHANG
  • Publication number: 20090077665
    Abstract: A method for detecting computer viruses includes the following steps: (a) enabling a server device to make statistics of computer virus infection record of a mobile terminal and infection record of all computer viruses in a network so as to obtain infection number rankings of viruses that infected the mobile terminal and all computer viruses in the network, respectively; (b) enabling the server device to generate virus pattern data according to infection number ranking results of the viruses that infected the mobile terminal and all computer viruses in the network; (c) enabling the server device to transmit the virus pattern data to the mobile terminal; (d) enabling the mobile terminal to receive data via the network; and (e) enabling the mobile terminal to detect whether the data is infected by a computer virus with reference to the virus pattern data, and to transmit computer virus infection information to the server device upon detection that the data is infected by a computer virus.
    Type: Application
    Filed: March 20, 2006
    Publication date: March 19, 2009
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventor: Yi-Wen Chang
  • Patent number: D824400
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: July 31, 2018
    Assignee: HTC Corporation
    Inventors: Yi-Wen Chang, Yun-Jung Lee, Wen-Bin Kung
  • Patent number: D852842
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: July 2, 2019
    Assignee: Beijing Kingsoft Internet Security Software Co., Ltd.
    Inventors: Ting-Jiun Hung, Kai-Hsiang Lin, Chieh-Tun Yang, Yi-Wen Chang, Tzu-Jung Huang
  • Patent number: D857034
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: August 20, 2019
    Assignee: BEIJING KINGSOFT INTERNET SECURITY SOFTWARE CO., LTD.
    Inventors: Ting-Jiun Hung, Kai-Hsiang Lin, Chieh-Tun Yang, Yi-Wen Chang, Tzu-Jung Huang
  • Patent number: D963688
    Type: Grant
    Filed: April 24, 2020
    Date of Patent: September 13, 2022
    Assignee: GOGORO INC.
    Inventors: Chuan-feng Yeh, Yi-wen Chang, Chih-min Fu, Kai-wen Cheng
  • Patent number: D975125
    Type: Grant
    Filed: August 4, 2022
    Date of Patent: January 10, 2023
    Assignee: GOGORO INC.
    Inventors: Chuan-feng Yeh, Yi-wen Chang, Chih-min Fu, Kai-wen Cheng