Patents by Inventor Chien-Hung Liu

Chien-Hung 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: 20170250207
    Abstract: A thin film transistor and a preparation method thereof, an array substrate and a display apparatus are provided. The preparation method includes an operation of forming a low temperature poly silicon active layer; a substrate has a first region and a second region; and the step includes: forming a buffer layer on the first region and the second region of the substrate, the buffer layer having a thickness at a portion corresponding to the first region greater than that at a portion corresponding to the second region; or, forming the buffer layer on the first region of the substrate; forming an amorphous silicon layer on the buffer layer; performing laser crystallization processing on the amorphous silicon layer so as to convert the amorphous silicon layer into a poly silicon layer; and removing the poly silicon layer on the second region, and forming the low temperature poly silicon active layer on the first region.
    Type: Application
    Filed: April 8, 2016
    Publication date: August 31, 2017
    Inventors: Zuqiang Wang, Chien Hung Liu
  • Patent number: 9721911
    Abstract: A chip package includes a chip, a laser stopper, an isolation layer, a redistribution layer, an insulating layer, and a conductive structure. The chip has a conductive pad, a first surface, and a second surface. The conductive pad is located on the first surface. The second surface has a first through hole to expose the conductive pad. The laser stopper is located on the conductive pad in the first through hole. The isolation layer is located on the second surface and in the first through hole. The isolation layer has a third surface opposite to the second surface, and has a second through hole to expose the laser stopper. The redistribution layer is located on the third surface, a sidewall of the second through hole, and the laser stopper in the second through hole. The conductive structure is located on the redistribution.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: August 1, 2017
    Assignee: XINTEC INC.
    Inventors: Ho-Yin Yiu, Ying-Nan Wen, Chien-Hung Liu, Shih-Yi Lee
  • Patent number: 9715977
    Abstract: A keyboard with height-adjustable keys is provided. The keyboard includes a key supporting plate, the keys and a movable plate. Each key includes a supporting element. Moreover, plural bulges are disposed on the supporting element. The movable plate is disposed under the key supporting plate. The key is fixed on the key supporting plate. The key is connected with the key supporting plate through the supporting element. Moreover, the plural bulges are penetrated downwardly through the key supporting plate and inserted in the movable plate. While the movable plate is moved, the bulges are pushed and the key is moved toward the key supporting plate with the supporting element. Consequently, the height of the key is lowered.
    Type: Grant
    Filed: July 5, 2016
    Date of Patent: July 25, 2017
    Assignee: PRIMAX ELECTRONICS LTD.
    Inventor: Chien-Hung Liu
  • Publication number: 20170201096
    Abstract: An inverter and a control method are disclosed herein. The inverter includes a first switching circuit, a second switching circuit, and a DC-AC converting circuit. The first switching circuit is configured to selectively switch between connecting a first input terminal receiving an AC source and an output terminal of the inverter, and connecting a second input terminal receiving a DC source and the output terminal of the inverter. The second switching circuit is configured such that the first input terminal and the output terminal are connected during the switching process of the first switching circuit. The DC-AC converting circuit is electrically coupled between the second input terminal and the first switching circuit and configured to be operated in a current control mode to convert the DC source to AC power when the first switching circuit is switched to connect the second input terminal and the output terminal.
    Type: Application
    Filed: September 20, 2016
    Publication date: July 13, 2017
    Inventors: Wen-Chang LEE, Yi-Hua CHANG, Chun-Ta LIN, Chien-Hung LIU
  • Patent number: 9704772
    Abstract: A chip package includes a chip, a dam layer, a permanent adhesive layer, a support, a buffer layer, a redistribution layer, a passivation layer, and a conducting structure. A conducting pad and a sensing device of the chip are located on a first surface of a substrate of the chip, and the conducting pad protrudes from the side surface of the substrate. The dam layer surrounds the sensing device. The permanent adhesive layer is between the support and the substrate. The support and the permanent adhesive layer have a trench to expose the conducting pad. The buffer layer is located on the support. The redistribution layer is located on the buffer layer and on the support, the permanent adhesive layer, and the conducting pad facing the trench. The passivation layer covers the redistribution layer, the buffer layer, and the conducting pad.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: July 11, 2017
    Assignee: XINTEC INC.
    Inventor: Chien-Hung Liu
  • Publication number: 20170169967
    Abstract: An optical switch keyboard includes a circuit module and plural keys. The plural keys are disposed over the circuit module. The circuit module includes a circuit board, plural light emitters and plural light receivers. Each key is disposed on a top surface of the circuit board. Each key corresponds to a light emitter and a light receiver. The plural light emitters and the plural light receivers are disposed on a bottom surface of the circuit board. Consequently, the plural light emitters and the plural light receivers are not interfered by the ambient light that comes from the top side of the circuit board. In addition, the optical switch keyboard has waterproof structures to prevent foreign liquid from entering the optical switch keyboard.
    Type: Application
    Filed: June 22, 2016
    Publication date: June 15, 2017
    Inventors: Bo-An Chen, Chien-Hung Liu
  • Publication number: 20170170214
    Abstract: An array substrate, a manufacturing method thereof, a display device, a thin-film transistor (TFT) and a manufacturing method thereof are disclosed. The method for manufacturing the TFT comprises: forming a pattern of an active layer and a gate insulating layer provided with a metal film on a base substrate; patterning the metal film by one patterning process, and forming patterns of a gate electrode, a source electrode, a drain electrode, a gate line and a data line; forming a passivation layer on the base substrate; patterning the passivation layer by one patterning process, and forming a source contact hole, a drain contact hole and a bridge structure contact hole; and forming a transparent conductive film on the base substrate, and removing partial transparent conductive film to form a source contact portion, a drain contact portion (214), a pixel electrode and a bridge structure. The manufacturing method can reduce the number of the patterning processes.
    Type: Application
    Filed: February 27, 2017
    Publication date: June 15, 2017
    Inventors: Chunping Long, Jang Soon Im, Chien Hung Liu
  • Publication number: 20170147857
    Abstract: A method for forming a chip package is provided. The method includes providing a device substrate including a sensing device and conductive pads that are exposed from a surface of the device substrate. The method further includes forming a conductive structure correspondingly on each of the conductive pads, and then covering the surface of the device substrate with a hard coating layer that completely covers the respective conductive structures on the conductive pads. The method further includes thinning the hard coating layer to expose the respective conductive structures on the conductive pads. The hard coating layer and the respective conductive structures on the conductive pads have substantially planar surfaces that are level with each other. A chip package is also provided.
    Type: Application
    Filed: November 21, 2016
    Publication date: May 25, 2017
    Inventor: Chien-Hung LIU
  • Publication number: 20170141135
    Abstract: The present application discloses a method of fabricating a display apparatus, comprising providing a carrier substrate comprising a base substrate and an adhesive layer over the base substrate, wherein the base substrate comprises a plurality of fluid passages between the base substrate and the adhesive layer, and a plurality of fluid inlets connected with the plurality of fluid passages; forming a product substrate on a side of the adhesive layer distal to the base substrate; dispensing a detaching agent through the plurality of fluid inlets to the plurality of fluid passages, and contacting the detaching agent with the adhesive layer through the plurality of fluid passages; and detaching the product substrate from the carrier substrate.
    Type: Application
    Filed: February 22, 2016
    Publication date: May 18, 2017
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yueping Zuo, Chien Hung Liu, Liangjian Li, Yinghai Ma
  • Patent number: 9640405
    Abstract: A chip package included a chip, a first though hole, a laser stop structure, a first isolation layer, a second though hole and a conductive layer. The first though hole is extended from the second surface to the first surface of the chip to expose a conductive pad, and the laser stop structure is disposed on the conductive pad exposed by the first through hole, which an upper surface of the laser stop structure is above the second surface. The first isolation layer covers the second surface and the laser stop structure, and the first isolation layer has a third surface opposite to the second surface. The second though hole is extended from the third surface to the second surface to expose the laser stop structure, and a conductive layer is on the third surface and extended into the second though hole to contact the laser stop structure.
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: May 2, 2017
    Assignee: XINTEC INC.
    Inventors: Ying-Nan Wen, Chien-Hung Liu, Shih-Yi Lee, Ho-Yin Yiu
  • Patent number: 9634043
    Abstract: An array substrate, a manufacturing method thereof, a display device, a thin-film transistor (TFT) and a manufacturing method thereof are disclosed. The method for manufacturing the TFT comprises: forming a pattern of an active layer and a gate insulating layer provided with a metal film on a base substrate patterning the metal film by one patterning process, and forming patterns of a gate electrode a source electrode, a drain electrode a gate line and a data line; forming a passivation layer on the base substrate; patterning the passivation layer by one patterning process, and forming a source contact hole, a drain contact hole and a bridge structure contact hole; and forming a transparent conductive film on the base substrate, and removing partial transparent conductive film to form a source contact portion, a drain contact portion, a pixel electrode and a bridge structure.
    Type: Grant
    Filed: September 20, 2014
    Date of Patent: April 25, 2017
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Chunping Long, Jang Soon Im, Chien Hung Liu
  • Publication number: 20170110641
    Abstract: A semiconductor package includes a substrate, at lest one support, a cover, and a plate. The substrate has at least one light sensor or thermal sensor, a first surface, and a second surface opposite to the first surface. The light sensor or the thermal sensor is disposed on the first surface. The second surface has an opening to expose the light sensor (or the thermal sensor). The support is disposed on the first surface. The cover is disposed on the support, such that the cover is above the light sensor (or the thermal sensor) to form a first space between the cover and the light sensor (or the thermal sensor). The plate is placed on the second surface to cover the opening, such that a second space is formed between the plate and the light sensor (or the thermal sensor).
    Type: Application
    Filed: December 29, 2016
    Publication date: April 20, 2017
    Inventor: Chien-Hung LIU
  • Publication number: 20170076981
    Abstract: A chip package includes a chip, a laser stopper, an isolation layer, a redistribution layer, an insulating layer, and a conductive structure. The chip has a conductive pad, a first surface, and a second surface opposite to the first surface. The conductive pad is located on the first surface. The second surface has a first though hole to expose the conductive pad. The laser stopper is located on the conductive pad. The isolation layer is located on the second surface and in the first though hole. The isolation layer has a third surface opposite to the second surface. The isolation layer and the conductive pad have a second though hole together, such that the laser stopper is exposed through the second though hole. The redistribution layer is located on the third surface, the sidewall of the second though hole, and the laser stopper.
    Type: Application
    Filed: November 29, 2016
    Publication date: March 16, 2017
    Inventors: Chien-Hung LIU, Ying-Nan WEN, Shih-Yi LEE, Ho-Yin YIU
  • Patent number: 9589991
    Abstract: A thin-film transistor (TFT), a manufacturing method thereof, display substrate and a display device are disclosed. The TFT includes: an active layer, gate insulating layer, gate electrode, interlayer dielectric layer, source electrode and a drain electrode disposed on a base substrate in sequence. The source electrode and drain electrode are respectively connected with the active layer via a through hole exposing the active layer; the gate insulating layer at least includes a silicon oxide layer and a silicon nitride layer in a two-layer structure; the interlayer dielectric layer at least includes silicon oxide layers and silicon nitride layers in a four-layer structure; the silicon oxide layers and silicon nitride layers of the gate insulating layer and the interlayer dielectric layer are alternately arranged; and the dimension of one side of the through hole away from the base substrate is greater than that of one side close to the base substrate.
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: March 7, 2017
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Zuqiang Wang, Chien Hung Liu
  • Publication number: 20170053954
    Abstract: Preparation methods for a thin-film layer pattern, thin-film transistor and array substrate. The preparation method for a thin-film layer pattern includes: providing a mask plate, the mask plate including a mask plate body and a hollowed portion arranged on same; placing the mask plate onto a substrate, and allowing a projection of the hollowed portion on the substrate to be overlapped with a projection of a thin-film layer pattern to be formed on the substrate; forming a thin film on the substrate on which the mask plate (10) is placed, wherein a first thin-film portion formed at the hollowed portion is disconnected from a second thin-film portion formed on the mask plate body; and stripping the mask plate, and reserving the first thin-film portion to form the thin-film layer pattern.
    Type: Application
    Filed: February 23, 2016
    Publication date: February 23, 2017
    Inventors: Chien Hung LIU, Yu Cheng CHAN
  • Publication number: 20170047300
    Abstract: A chip package included a chip, a first though hole, a laser stop structure, a first isolation layer, a second though hole and a conductive layer. The first though hole is extended from the second surface to the first surface of the chip to expose a conductive pad, and the laser stop structure is disposed on the conductive pad exposed by the first through hole, which an upper surface of the laser stop structure is above the second surface. The first isolation layer covers the second surface and the laser stop structure, and the first isolation layer has a third surface opposite to the second surface. The second though hole is extended from the third surface to the second surface to expose the laser stop structure, and a conductive layer is on the third surface and extended into the second though hole to contact the laser stop structure.
    Type: Application
    Filed: November 1, 2016
    Publication date: February 16, 2017
    Inventors: Ying-Nan WEN, Chien-Hung LIU, Shih-Yi LEE, Ho-Yin YIU
  • Patent number: 9570633
    Abstract: A semiconductor package includes a substrate, at least one support, a cover, and a plate. The substrate has at least one light sensor or thermal sensor, a first surface, and a second surface opposite to the first surface. The light sensor or the thermal sensor is disposed on the first surface. The second surface has an opening to expose the light sensor (or the thermal sensor). The support is disposed on the first surface. The cover is disposed on the support, such that the cover is above the light sensor (or the thermal sensor) to form a first space between the cover and the light sensor (or the thermal sensor). The plate is placed on the second surface to cover the opening, such that a second space is formed between the plate and the light sensor (or the thermal sensor).
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: February 14, 2017
    Assignee: XINTEC INC.
    Inventor: Chien-Hung Liu
  • Publication number: 20170018590
    Abstract: A chip package is provided. The chip package includes a sensing device. The chip package also includes a first conductive structure disposed on the sensing device and electrically connected to the sensing device. The chip package further includes a chip and a second conductive structure disposed on the sensing device. The chip includes an integrated circuit device. The second conductive structure is positioned on the chip and is electrically connected to the integrated circuit device and the first conductive structure. In addition, the chip package includes an insulating layer covering the sensing device and the chip. The insulating layer has a hole. The first conductive structure is positioned under the bottom of the hole. The top surface of the insulating layer is coplanar with the top surface of the second conductive structure. A method for forming the chip package is also provided.
    Type: Application
    Filed: June 13, 2016
    Publication date: January 19, 2017
    Inventors: Ho-Yin YIU, Ying-Nan WEN, Chien-Hung LIU, Wei-Chung YANG
  • Patent number: 9543233
    Abstract: A chip package includes a chip, a laser stopper, an isolation layer, a redistribution layer, an insulating layer, and a conductive structure. The chip has a conductive pad, a first surface, and a second surface opposite to the first surface. The conductive pad is located on the first surface. The second surface has a first though hole to expose the conductive pad. The laser stopper is located on the conductive pad. The isolation layer is located on the second surface and in the first though hole. The isolation layer has a third surface opposite to the second surface. The isolation layer and the conductive pad have a second though hole together, such that the laser stopper is exposed through the second though hole. The redistribution layer is located on the third surface, the sidewall of the second though hole, and the laser stopper.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: January 10, 2017
    Assignee: XINTEC INC.
    Inventors: Chien-Hung Liu, Ying-Nan Wen, Shih-Yi Lee, Ho-Yin Yiu
  • Patent number: 9543415
    Abstract: The embodiments of the present invention provide a thin film transistor driving backplane and a manufacturing method thereof, and a display panel. The manufacturing method may comprise: manufacturing a backplane base disposed with a plurality of active device structures; disposing an electrode layer on the backplane base; and manufacturing the electrode layer into a source electrode, a drain electrode and a pixel electrode integrally disposed with the drain electrode by one patterning process.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: January 10, 2017
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zuqiang Wang, Chien Hung Liu