Patents by Inventor Chun-Yuan Liu

Chun-Yuan Liu 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).

  • Publication number: 20180075988
    Abstract: The present invention provides a key structure and a manufacturing method thereof. The key structure includes a keycap made of a first material and a graphics made of a second material. A part of the graphics is filled in a groove that extends downwards from an upper surface of the keycap, and an other part of the graphics is exposed outside the groove for press, and the graphics is molded by means of a resin dispensing process. In addition, the present invention further provides a keyboard devices that applies the foregoing key structure.
    Type: Application
    Filed: November 10, 2016
    Publication date: March 15, 2018
    Inventors: Chun-Yuan Liu, Wei-Yung Huang
  • Publication number: 20180074597
    Abstract: The present invention provides a keyboard, which includes a plurality of key structures. Each of the key structures includes an elastic piece, a filling piece, a membrane circuit board, and a movable support structure. The elastic piece is used for press by a user to trigger the membrane circuit board. The movable support structure is connected to the filling piece, and is located in an accommodating space defined by the elastic piece, so as to improve an overall structural strength. The elastic piece coats the filling piece and is co-injection molded with the filling piece; hardness of the filling piece is greater than that of the elastic piece, so as to improve hand feelings of pressing the elastic piece.
    Type: Application
    Filed: November 10, 2016
    Publication date: March 15, 2018
    Inventors: Wei-Yung Huang, Chun-Yuan Liu
  • Publication number: 20180053610
    Abstract: A luminous keyboard includes plural key structures and a light guide plate. Moreover, plural elongated condenser structures are formed on a top surface of the light guide plate. Each of the plural elongated condenser structures has a long axial direction. The plural elongated condenser structures are distributed in parallel and along a direction perpendicular to the long axial direction. After plural light beams pass through the elongated condenser structures in the upward direction, the beam angles of the light beams from the light guide plate are converged by the elongated condenser structures. Consequently, the brightness of the backlight is increased. Moreover, the light beams do not leak from the vacant spaces between adjacent key structures.
    Type: Application
    Filed: October 28, 2016
    Publication date: February 22, 2018
    Inventors: Chun-Yuan Liu, Tsu-Yi Chen
  • Publication number: 20180053611
    Abstract: A light color changeable illuminated keyboard includes a circuit layer, plural keys, a switching key, a bicolor light-emitting element and a control unit. The plural keys and the switching key are disposed on the circuit layer. The bicolor light-emitting element is located under the plural keys. The bicolor light-emitting element selectively emits a first color light or a second color light. The control unit is electrically connected with the switching key and the bicolor light-emitting element. If the switching key is pressed down when the bicolor light-emitting element emits the first color light, a pressing signal is generated. In response to the pressing signal, the color light emitted by the bicolor light-emitting element is switched from the first color light to the second color light under control of the control unit.
    Type: Application
    Filed: November 23, 2016
    Publication date: February 22, 2018
    Inventors: Che-Wei Yang, Chun-Yuan Liu
  • Publication number: 20180053608
    Abstract: A keyboard device is provided. The keyboard device includes a button bottom plate, buttons, and a thin-film circuit board disposed between the button bottom plate and the buttons. The button includes a button cap and a scissors connecting member connected between the button bottom plate and the button cap. The scissors connecting member includes an outer frame and an inner frame. The inner frame includes a frame body and a rotating shaft that is connected to the frame body and extends out of the frame body. The inner frame is pivotally connected to the outer frame by means of the rotating shaft, and the rotating shaft and the frame body are made of different materials, respectively.
    Type: Application
    Filed: October 21, 2016
    Publication date: February 22, 2018
    Inventors: Chun-Yuan Liu, Tsu-Yi Chen