Patents Assigned to Visera Technologies Company Limited
  • Patent number: 11156826
    Abstract: An optical device is provided. The optical device includes a substrate, a central color filter, a first color filter and a second color filter sequentially disposed on the substrate from the center to the edge of the substrate, and a central hollow member, a first hollow member and a second hollow member respectively disposed on the central color filter, the first color filter and the second color filter. There is no distance between a center of the central color filter and a center of the central hollow member. There is a first distance between a center of the first color filter and a center of the first hollow member. There is a second distance between a center of the second color filter and a center of the second hollow member. The first distance is greater than zero. The second distance is greater than the first distance.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: October 26, 2021
    Assignee: VISERA TECHNOLOGIES COMPANY LIMITED
    Inventor: Zong-Ru Tu
  • Patent number: 11105745
    Abstract: In some embodiments, a biosensor is provided. The biosensor includes a sensing element and a cover disposed on the sensing element. The sensing element includes: a first substrate embedded with a photodiode; and a filter layer disposed on the substrate. The cover includes: a second substrate; an upper optical element disposed in the second substrate; and an upper reaction well disposed on the upper optical element.
    Type: Grant
    Filed: October 10, 2019
    Date of Patent: August 31, 2021
    Assignee: VISERA TECHNOLOGIES COMPANY LIMITED
    Inventor: Hsin-Yi Hsieh
  • Patent number: 11081600
    Abstract: A light filter structure is provided. The light filter structure includes a substrate having a plurality of photoelectric conversion elements. The light filter structure also includes a dielectric-stacking layer disposed on the substrate. The light filter structure further includes a flattening layer disposed on the dielectric-stacking layer. The dielectric-stacking layer has a wedge portion and a flattening portion adjacent to the wedge portion, the wedge portion has a continuously or non-continuously varied thickness, and the flattening portion has a substantially constant thickness.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: August 3, 2021
    Assignee: VISERA TECHNOLOGIES COMPANY LIMITED
    Inventor: Yu-Jen Chen
  • Patent number: 11057115
    Abstract: An optical communication device includes a plurality of laser sources, a plurality of first meta-lenses, and an optical fiber. The laser sources transmit a plurality of laser beams in the same direction according to electrical signals. The laser beams have different wavelengths. The first meta-lenses receive the laser beams, and in a first substrate, refract the laser beams to a focal point to generate a mixed laser beam. The optical fiber receives the mixed laser beam for transmission. The focal point is arranged at the input end of the optical fiber.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: July 6, 2021
    Assignee: Visera Technologies Company Limited
    Inventors: Kuo-Feng Lin, Chin-Chuan Hsieh
  • Patent number: 10983318
    Abstract: An optical element is provided. The optical element includes a substrate, a plurality of metal grids formed on the substrate, a patterned organic layer formed on the plurality of metal grids, a color filter surrounded by the patterned organic layer, and a light collection layer formed between the color filter and the substrate, and surrounded by the patterned organic layer. The refractive index of the light collection layer is greater than that of the patterned organic layer.
    Type: Grant
    Filed: August 2, 2018
    Date of Patent: April 20, 2021
    Assignee: VISERA TECHNOLOGIES COMPANY LIMITED
    Inventor: Zong-Ru Tu
  • Patent number: 10957731
    Abstract: A sensor device is provided. The sensor device includes at least one sensor unit. The sensor unit includes at least one sensor element, an interlayer, a passivation layer, a micro-lens structure, an opening, and a first reflecting layer. The interlayer is disposed on the sensor element. The passivation layer is disposed on the interlayer. The micro-lens structure is disposed on the passivation layer. The opening is disposed in the micro-lens structure. The first reflecting layer is disposed on the micro-lens structure. In addition, the first reflecting layer extends from the opening to the passivation layer.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: March 23, 2021
    Assignee: Visera Technologies Company Limited
    Inventor: Hsin-Yi Hsieh
  • Patent number: 10955597
    Abstract: An optical device is provided. The optical device includes a substrate, a plurality of color filters formed on the substrate, and a plurality of spacers formed between the color filters. Each spacer has a first sidewall and a second sidewall opposite to the first sidewall. There is a first angle between the first sidewall of each spacer and a normal line of the top surface of the substrate. There is a second angle between the second sidewall of each spacer and the normal line of the top surface of the substrate. At least one of the first angle and the second angle is increased gradually towards the edge of the substrate.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: March 23, 2021
    Assignee: VISERA TECHNOLOGIES COMPANY LIMITED
    Inventors: Kuo-Feng Lin, Chin-Chuan Hsieh
  • Patent number: 10955598
    Abstract: An optical device is provided. The optical device includes a plurality of metal grids, a first patterned organic layer, and a second patterned organic layer. The first patterned organic layer includes a first portion having a first thickness, a second portion having a second thickness, a third portion having a third thickness, and a plurality of fourth portions. The first portion, the second portion and the third portion are respectively formed between the metal grids. The fourth portions are formed on the metal grids. The first thickness of the first portion is greater than the second thickness of the second portion. The second thickness of the second portion is greater than the third thickness of the third portion. The second patterned organic layer is formed on the fourth portions of the first patterned organic layer.
    Type: Grant
    Filed: February 1, 2019
    Date of Patent: March 23, 2021
    Assignee: Visera Technologies Company Limited
    Inventors: Kuo-Feng Lin, Chin-Chuan Hsieh
  • Patent number: 10850462
    Abstract: A method for fabricating an optical element is provided. A substrate is provided. A plurality of metal grids are formed on the substrate. An organic layer is formed on the substrate and the metal grids. The organic layer is etched to form a first patterned organic layer including a plurality of first protrusion portions and a plurality of first trenches surrounded by the first protrusion portions. The first patterned organic layer is etched to form a second patterned organic layer including a plurality of second protrusion portions and a plurality of second trenches surrounded by the second protrusion portions. Each second protrusion portion covers one metal grid. There is a distance between the center axis of one second protrusion portion of the second patterned organic layer and the center axis of one metal grid covered by the one second protrusion portion of the second patterned organic layer.
    Type: Grant
    Filed: October 3, 2018
    Date of Patent: December 1, 2020
    Assignee: VISERA TECHNOLOGIES COMPANY LIMITED
    Inventors: Sheng-Chuan Cheng, Hao-Min Chen, Chi-Han Lin, Han-Lin Wu
  • Patent number: 10840391
    Abstract: A light filter structure is provided. The light filter structure includes a substrate having a plurality of photoelectric conversion elements. The light filter structure also includes a first metal-stacking layer disposed on the substrate. The light filter structure further includes a graded layer disposed on the first metal-stacking layer. The graded layer has a continuously or non-continuously varied thickness. The light filter structure includes a flatting layer disposed on the graded layer. The light filter structure also includes a second metal-stacking layer disposed on the flatting layer.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: November 17, 2020
    Assignee: VISERA TECHNOLOGIES COMPANY LIMITED
    Inventor: Yu-Jen Chen
  • Patent number: 10804441
    Abstract: A light-emitting device is provided. The light-emitting device includes a substrate including a plurality of pixels, each pixel including a plurality of subpixels designed to emit light with different colors. The plurality of subpixels includes a first subpixel designed to emit red light, a second subpixel designed to emit green light, and a third subpixel designed to emit blue light. The first subpixel includes a first light source formed on the substrate, a red light-emitting layer covering the first light source, and a first yellow color filter covering the red light-emitting layer. The second subpixel includes a second light source formed on the substrate, a green light-emitting layer covering the second light source, and a second yellow color filter covering the green light-emitting layer. The third subpixel includes a third light source formed on the substrate. A method for fabricating the light-emitting device is also provided.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: October 13, 2020
    Assignee: Visera Technologies Company Limited
    Inventors: Wei-Ko Wang, Chia-Hui Wu
  • Patent number: 10804306
    Abstract: A solid-state imaging device having flat microlenses is provided. The solid-state imaging device includes a semiconductor substrate having a plurality of photoelectric conversion elements. The solid-state imaging device further includes a color filter layer disposed above the semiconductor substrate. The solid-state imaging device also includes a microlens having a flat top surface disposed on the color filter layer. The flat top surface of the microlens is directly above the photoelectric conversion element, and the area of the flat top surface of the microlens is equal to the area of the photoelectric conversion element.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: October 13, 2020
    Assignee: VISERA TECHNOLOGIES COMPANY LIMITED
    Inventors: Tzu-Wei Huang, Ji-Hong Lin, Huang-Jen Chen
  • Patent number: 10784300
    Abstract: The solid-state imaging device includes a first set of units disposed in a substrate and including a first pixel unit, a second pixel unit and a third pixel unit. The first pixel unit, the second pixel unit and the third pixel unit are sequentially arranged and include respective photoelectric conversion elements. The solid-state imaging device also includes a metal grid structure disposed over the first set of units and including a first portion and a second portion. The first portion is disposed between the first pixel unit and the second pixel unit and has a first width. The second portion is disposed between the second pixel unit and the third pixel unit and has a second width that is greater than the first width.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: September 22, 2020
    Assignee: VISERA TECHNOLOGIES COMPANY LIMITED
    Inventor: Chi-Han Lin
  • Patent number: 10777609
    Abstract: An optical device is provided. The optical device includes a central region having a plurality of central pixels, a first region having a plurality of first pixels, a second region having a plurality of second pixels, an organic layer formed in the central region, the first region and the second region, a light collection layer surrounded by the organic layer formed in the first region and the second region, a first light collection element of the light collection layer formed in the first pixel, and a second light collection element of the light collection layer formed in the second pixel. The central region, the first region and the second region are spaced from each other along an arrangement direction, and the first region is closer to the central region than the second region. The first light collection element is different from the second light collection element.
    Type: Grant
    Filed: April 1, 2019
    Date of Patent: September 15, 2020
    Assignee: VISERA TECHNOLOGIES COMPANY LIMITED
    Inventor: Zong-Ru Tu
  • Patent number: 10770496
    Abstract: An optical sensor includes an optical layer disposed on a substrate, and a light shielding layer disposed on the optical layer, wherein the light shielding layer includes a first opening that partially exposes the optical layer. The optical sensor also includes a polymer material layer that fills the first opening, wherein a top surface of the polymer material layer is higher than a top surface of the light shielding layer. The optical sensor further includes an adhesive layer disposed on the light shielding layer and the polymer material layer, and a surface component disposed on the adhesive layer.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: September 8, 2020
    Assignee: VISERA TECHNOLOGIES COMPANY LIMITED
    Inventors: Ching-Chiang Wu, Ho-Tai Lin, Masafumi Sano
  • Patent number: 10686000
    Abstract: A solid-state imaging device includes multiple photoelectric conversion elements arrayed in a pixel array. The solid-state imaging device also includes a color filter layer having multiple color filter segments above the photoelectric conversion elements. Each of the color filter segments is disposed in a respective pixel of the pixel array. The solid-state imaging device further includes an optical waveguide layer over the color filter layer. The optical waveguide layer includes a waveguide partition grid and a waveguide material in the spaces of the waveguide partition grid. The waveguide material has a refractive index that is higher than the refractive index of the waveguide partition grid. The waveguide material provides the same refractive index for each pixel of the pixel array.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: June 16, 2020
    Assignee: VISERA TECHNOLOGIES COMPANY LIMITED
    Inventors: Cheng-Hsuan Lin, Zong-Ru Tu, Yu-Chi Chang, Ching-Hua Li
  • Patent number: 10684400
    Abstract: An optical element is provided. The optical element includes a substrate, a plurality of metal grids formed on the substrate, a patterned first organic layer formed on the plurality of metal grids, a color filter surrounded by the patterned first organic layer, a second organic layer formed on the patterned first organic layer and the color filter, and a light collection layer surrounded by the second organic layer and corresponding to the color filter. The refractive index of the light collection layer is greater than that of the second organic layer. A method for fabricating the optical element is also provided.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: June 16, 2020
    Assignee: VisEra Technologies Company Limited
    Inventor: Zong-Ru Tu
  • Patent number: 10675657
    Abstract: A method for fabricating an optical element is provided. The fabrication method includes the following steps. A substrate is provided. A plurality of metal grids are formed on the substrate. A first organic layer is formed on the substrate between the plurality of metal grids. A second organic layer is formed on the first organic layer and the plurality of metal grids. The second organic layer and the first organic layer are etched to leave the plurality of metal grids and a plurality of patterned second organic layers on the plurality of metal grids. An optical element fabricated by the method is also provided.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: June 9, 2020
    Assignee: VISERA TECHNOLOGIES COMPANY LIMITED
    Inventors: Sheng-Chuan Cheng, Huang-Jen Chen, Chi-Han Lin, Han-Lin Wu
  • Patent number: 10670784
    Abstract: A light filter structure is provided. The light filter structure includes a first filter layer disposed over the substrate. The first filter layer has a transmittance greater than 50% in a first waveband, wherein the first filter layer is an interference-type filter. The light filter structure further includes a second filter layer disposed over the substrate. The second filter layer has a transmittance greater than 50% in a second waveband, wherein the second filter layer is an absorption-type filter. The first waveband partially overlaps the second waveband at the wavelength in a third waveband, and the third waveband is in an IR region. Furthermore, an image sensor used as a time-of-flight image sensor is also provided.
    Type: Grant
    Filed: May 17, 2017
    Date of Patent: June 2, 2020
    Assignee: VISERA TECHNOLOGIES COMPANY LIMITED
    Inventors: Wei-Ko Wang, Yu-Jen Chen, Chia-Hui Wu
  • Patent number: 10566365
    Abstract: An image sensor includes a sensing layer, a first microlens, and a number of second microlenses. The first microlens is disposed on the sensing layer. The second microlenses are disposed on the sensing layer adjacent to the first microlens. The diameter of the first microlens is greater than the diameter of each of the second microlenses.
    Type: Grant
    Filed: May 27, 2015
    Date of Patent: February 18, 2020
    Assignee: VISERA TECHNOLOGIES COMPANY LIMITED
    Inventors: Li-Wei Chen, Chi-Han Lin, Zong-Ru Tu