Patents by Inventor Chin-Siong Khor

Chin-Siong Khor 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: 11009762
    Abstract: An electronic device with a flexible display subassembly is provided. The display stack may use two layers of adhesives having different elastic properties to improve mechanical impact resistance, with a first adhesive layer made of a viscoelastic material and a second adhesive layer having a low modulus of elasticity. The display stack may also include a hot melt protective sheet (HMPS) covering the display subassembly. The HMPS may be wrapped around the two side edges of a rigid substrate to attach directly to the substrate, thereby aiding in the adhesion of the display stack to the substrate. The display stack may also includes a patterned back protective sheet in which the protective backing layer is removed along the curved portions of the display stack.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: May 18, 2021
    Assignee: AMAZON TECHNOLOGIES, INC.
    Inventors: Weihsin Hou, Robert Arthur Sprague, Chin Siong Khor, Siddharth Gupta
  • Patent number: 10288974
    Abstract: An electronic device with a flexible display subassembly is provided. The display stack may use two layers of adhesives having different elastic properties to improve mechanical impact resistance, with a first adhesive layer made of a viscoelastic material and a second adhesive layer having a low modulus of elasticity. The display stack may also include a hot melt protective sheet (HMPS) covering the display subassembly. The HMPS may be wrapped around the two side edges of a rigid substrate to attach directly to the substrate, thereby aiding in the adhesion of the display stack to the substrate. The display stack may also includes a patterned back protective sheet in which the protective backing layer is removed along the curved portions of the display stack.
    Type: Grant
    Filed: August 31, 2016
    Date of Patent: May 14, 2019
    Assignee: AMAZON TECHNOLOGIES, INC.
    Inventors: Weihsin Hou, Robert Arthur Sprague, Chin Siong Khor, Siddharth Gupta
  • Patent number: 10022937
    Abstract: This disclosure describes methods and devices useful for adhering a first substrate of a display to a second substrate of the display. In example embodiments, a first plate may be sealed to the first substrate, and a second plate may be sealed to the second substrate. In addition, a layer of adhesive may be disposed between the first and second substrates to assist in adhering the first substrate to the second substrate. A pressure may then be applied to the first and second plates as well as the first and second substrates to assist in the adhesion process. In example embodiments, the first plate may assist in applying pressure proximate a perimeter of the first substrate such that the perimeter of the first substrate adheres to a perimeter of the second substrate.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: July 17, 2018
    Assignee: Amazon Technologies, Inc.
    Inventors: Weihsin Hou, Anoop Menon, Chin Siong Khor, Yean Chan Woon
  • Patent number: 10011090
    Abstract: Systems and methods for planar pressing a module are described. A module includes a first layer and a second layer coupled together by an adhesive between the first layer and second layer. The module is disposed on a planar press and the planar press is activated to apply directional pressure and heat to the module for a specified period of time.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: July 3, 2018
    Assignee: Amazon Technologies, Inc.
    Inventors: Chin Siong Khor, Robert Zenner, Anoop Menon
  • Patent number: 9990064
    Abstract: An electronic device includes a stack assembly. The stack assembly is provided with a stack of sub-assemblies such as a display for rendering content, front lighting layered on top of the display for illuminating the display, a capacitive touch sensor layered on top of the front lighting for detecting touch inputs, and a cover glass layered on top of the capacitive touch sensor. Each sub-assembly is adhered to another sub-assembly with a film optically clear adhesive before coupling sub-assemblies with each other, which forms a touch-sensitive front-lit display that is capable of accepting user input and rendering content in low ambient light conditions.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: June 5, 2018
    Assignee: AMAZON TECHNOLOGIES, INC.
    Inventors: Robert L. D. Zenner, Chin Siong Khor
  • Publication number: 20170293194
    Abstract: An electronic device with a flexible display subassembly is provided. The display stack may use two layers of adhesives having different elastic properties to improve mechanical impact resistance, with a first adhesive layer made of a viscoelastic material and a second adhesive layer having a low modulus of elasticity. The display stack may also include a hot melt protective sheet (HMPS) covering the display subassembly. The HMPS may be wrapped around the two side edges of a rigid substrate to attach directly to the substrate, thereby aiding in the adhesion of the display stack to the substrate. The display stack may also includes a patterned back protective sheet in which the protective backing layer is removed along the curved portions of the display stack.
    Type: Application
    Filed: August 31, 2016
    Publication date: October 12, 2017
    Inventors: Weihsin Hou, Robert Arthur Sprague, Chin Siong Khor, Siddharth Gupta
  • Patent number: 9684338
    Abstract: A multifunctional device layer may include a lightguide substrate having an optically patterned surface and an opposing non-patterned surface. The non-patterned surface of the lightguide substrate is coated with a first material having a first refractive index and the patterned surface is coated with a second material having a second refractive index. The first refractive index may be lower than the second refractive index and each may be lower than a refractive index of the lightguide substrate. A touch sensor may be formed on the coated non-patterned surface of the lightguide substrate, the coated patterned surface, or on an interstitial layer deposited on the coated non-patterned surface or the coated patterned surface. An anti-glare/anti-reflective coating potentially having ultraviolet (UV) absorption properties may be applied to the touch sensor.
    Type: Grant
    Filed: March 9, 2015
    Date of Patent: June 20, 2017
    Assignee: AMAZON TECHNOLOGIES, INC.
    Inventors: Anoop Menon, Kari Juhani Rinko, Joel Martin Pollack, Weihsin Hou, Chin Siong Khor
  • Patent number: 9606264
    Abstract: An electronic device includes a display for rendering content. The display may include a protective sheet that is located between an image-displaying component and a liquid optically clear adhesive (LOCA) that adheres another component layered atop the display, such as a front light, a touch sensor or a cover layer. In some cases, the protective sheet may be a polymer sheet coated with a layer of ceramic material that prevents migration of a reactive species, such as a photoinitiator, between the protective sheet and the LOCA. Alternatively, a plasma treatment, a UV-light-ozone treatment, or a thermal treatment may be applied to the protective sheet to remove material including the reactive species and/or form a barrier layer to prevent migration of the reactive species. Still alternatively, the protective sheet may be a thin flexible glass sheet that does not include constituents that interact with the LOCA.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: March 28, 2017
    Assignee: Amazon Technologies, Inc.
    Inventors: Anoop Menon, Chin Siong Khor, Robert Waverly Zehner
  • Patent number: 9507162
    Abstract: Describe herein are electronic devices that includes a display stack having a display component configured to display a three dimensional image. In some instances, the display component includes a layer of lenticular structures or lenses formed by applying a layer of liquid lacquer to a surface associated with the display component, embossing the lenticular structures into the lacquer, and curing or hardening the lenticular structures in place.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: November 29, 2016
    Assignee: Amazon Technologies, Inc.
    Inventors: Anoop Menon, Chin Siong Khor, Robert Arthur Sprague
  • Patent number: 9457544
    Abstract: In some implementations, a process includes forming a layer of a liquid optically clear adhesive (LOCA) on a surface of a first substrate. Additionally, the LOCA can be contacted with a surface of a second substrate. The LOCA can then be exposed to Ultraviolet (UV) radiation. After exposing the LOCA to UV radiation, additional substrates can be coupled to the first substrate, the second substrate, or both to form a display stack. In an implementation, the total energy/unit area for the UV radiation applied to the LOCA can be no greater than 25,000 kJ/cm2.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: October 4, 2016
    Assignee: Amazon Technologies, Inc.
    Inventors: Anoop Menon, Weihsin Hou, Chin Siong Khor, Yean Chan Woon
  • Publication number: 20160282971
    Abstract: An electronic device includes a stack assembly. The stack assembly is provided with a stack of sub-assemblies such as a display for rendering content, front lighting layered on top of the display for illuminating the display, a capacitive touch sensor layered on top of the front lighting for detecting touch inputs, and a cover glass layered on top of the capacitive touch sensor. Each sub-assembly is adhered to another sub-assembly with a film optically clear adhesive before coupling sub-assemblies with each other, which forms a touch-sensitive front-lit display that is capable of accepting user input and rendering content in low ambient light conditions.
    Type: Application
    Filed: March 24, 2015
    Publication date: September 29, 2016
    Inventors: Robert L.D. Zenner, Chin Siong Khor
  • Publication number: 20160170250
    Abstract: An electronic device includes a stack assembly and a cover glass. The stack assembly includes an electronic paper display sub-assembly for rendering content, a front light sub-assembly for illuminating the electronic display sub-assembly, and a capacitive touch sensing sub-assembly for detecting touch inputs. The cover glass includes two apertures for the placement of control buttons for the electronic device. Prior to assembly of the electronic device, the cover glass is strengthened after the two apertures are formed so as to strengthen the interior edges of the apertures.
    Type: Application
    Filed: December 11, 2014
    Publication date: June 16, 2016
    Inventors: Hany Mounir Ghali, Gregory Turner Witmer, Chin Siong Khor, Anoop Menon, Premal Vinodchandra Parekh, Robert L.D. Zenner, Lakshman Rathnam, Siddharth Gupta, Angeles Marcia Almanza-Workman
  • Patent number: 9360696
    Abstract: An electronic device includes a stack assembly and a cover glass. The stack assembly includes an electronic paper display sub-assembly for rendering content, a front light sub-assembly for illuminating the electronic display sub-assembly, and a capacitive touch sensing sub-assembly for detecting touch inputs. The cover glass includes two apertures for the placement of control buttons for the electronic device. Prior to assembly of the electronic device, the cover glass is strengthened after the two apertures are formed so as to strengthen the interior edges of the apertures.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: June 7, 2016
    Assignee: Amazon Technologies, Inc.
    Inventors: Hany Mounir Ghali, Gregory Turner Witmer, Chin Siong Khor, Anoop Menon, Premal Vinodchandra Parekh, Robert L. D. Zenner, Lakshman Rathnam, Siddharth Gupta, Angeles Marcia Almanza-Workman
  • Patent number: 9024217
    Abstract: A key structure of a keyboard includes an intermediate plate, a keycap, a scissors-type connecting member, and an elastic element. The intermediate plate includes a hollow portion and a position-limiting recess. The position-limiting recess is formed in a lower part of the intermediate plate and in communication with the hollow portion. A lower part of the scissors-type connecting member is accommodated within the position-limiting recess. An upper part of the scissors-type connecting member is engaged with the keycap. After the elastic element is fixed on the intermediate plate, the elastic element is penetrated through the scissors-type connecting member and contacted with the keycap. The intermediate plate, the keycap, the scissors-type connecting member and the elastic element are combined as a single key. After plural keys are fixed on a base plate, the keyboard is assembled. Consequently, the efficiency of assembling the keyboard is enhanced.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: May 5, 2015
    Assignee: Primax Electronics Ltd.
    Inventor: Chin-Siong Khor
  • Patent number: 8829377
    Abstract: A scissors-type connecting member includes an inner frame and an outer frame. The inner frame includes a pivot rod. The pivot rod includes a curved edge and two flat slant surfaces. The outer frame includes a pivot hole, an entrance, and a guiding surface. The pivot hole has a flat bottom surface. The entrance is located beside the pivot hole. The guiding surface is disposed under the entrance. For assembling the scissors-type connecting member, the pivot rod of the inner frame is moved into the pivot hole along the guiding surface. When the inner frame is rotated relative to the outer frame, the two flat slant surfaces of the pivot rod are respectively stopped by the bottom surface of the pivot hole and the guiding surface. Consequently, a rotating angle of the inner frame relative to the outer frame is limited.
    Type: Grant
    Filed: November 6, 2012
    Date of Patent: September 9, 2014
    Assignee: Primax Electronics Ltd.
    Inventor: Chin-Siong Khor
  • Publication number: 20140124345
    Abstract: A scissors-type connecting member includes an inner frame and an outer frame. The inner frame includes a pivot rod. The pivot rod includes a curved edge and two flat slant surfaces. The outer frame includes a pivot hole, an entrance, and a guiding surface. The pivot hole has a flat bottom surface. The entrance is located beside the pivot hole. The guiding surface is disposed under the entrance. For assembling the scissors-type connecting member, the pivot rod of the inner frame is moved into the pivot hole along the guiding surface. When the inner frame is rotated relative to the outer frame, the two flat slant surfaces of the pivot rod are respectively stopped by the bottom surface of the pivot hole and the guiding surface. Consequently, a rotating angle of the inner frame relative to the outer frame is limited.
    Type: Application
    Filed: November 6, 2012
    Publication date: May 8, 2014
    Applicant: PRIMAX ELECTRONICS LTD.
    Inventor: Chin-Siong Khor
  • Publication number: 20140110234
    Abstract: A key structure of a keyboard includes an intermediate plate, a keycap, a scissors-type connecting member, and an elastic element. The intermediate plate includes a hollow portion and a position-limiting recess. The position-limiting recess is formed in a lower part of the intermediate plate and in communication with the hollow portion. A lower part of the scissors-type connecting member is accommodated within the position-limiting recess. An upper part of the scissors-type connecting member is engaged with the keycap. After the elastic element is fixed on the intermediate plate, the elastic element is penetrated through the scissors-type connecting member and contacted with the keycap. The intermediate plate, the keycap, the scissors-type connecting member and the elastic element are combined as a single key. After plural keys are fixed on a base plate, the keyboard is assembled. Consequently, the efficiency of assembling the keyboard is enhanced.
    Type: Application
    Filed: October 24, 2012
    Publication date: April 24, 2014
    Applicant: PRIMAX ELECTRONICS LTD.
    Inventor: Chin-Siong Khor