Patents by Inventor Li-Chen Wei

Li-Chen Wei 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: 20260068427
    Abstract: An organic light emitting element includes a substrate, a first electrode, a second electrode, a first organic light emitting layer and a second organic light emitting layer. The first electrode and the second electrode are located over the substrate. The first organic light emitting layer is located over the first electrode. The second organic light emitting layer is located over the second electrode. A difference between a thickness of the second organic light emitting layer and a thickness of the first organic light emitting layer is greater than 500 angstrom (?) and less than 1500 ?.
    Type: Application
    Filed: July 3, 2025
    Publication date: March 5, 2026
    Inventors: HUEI-SIOU CHEN, LI-CHEN WEI
  • Publication number: 20260047317
    Abstract: An organic light emitting element includes a substrate, a first electrode, a first organic light emitting layer and a top electrode. The first electrode is located over the substrate. The first organic light emitting layer is located over the first electrode. The top electrode includes an electrode layer and a conductivity enhancer. The electrode layer is located over the first organic light emitting layer. The conductivity enhancer at least partially covers the electrode layer.
    Type: Application
    Filed: July 3, 2025
    Publication date: February 12, 2026
    Inventors: HUEI-SIOU CHEN, LI-CHEN WEI
  • Publication number: 20250393390
    Abstract: An organic light emitting element and a manufacturing method thereof are provided. The organic light emitting element includes a substrate, a first electrode, an organic light emitting layer, a first inorganic barrier layer and a second electrode. The first electrode is over the substrate. The organic light emitting layer is the first electrode. The organic light emitting layer includes an electron injection layer and an electron transport layer. The electron injection layer includes an inorganic barrier material, and the electron transport layer includes an organic barrier material. The first inorganic barrier layer is between the first electrode and the organic light emitting layer. The second electrode is over the organic light emitting layer. The electron injection layer is between the electron transport layer and the second electrode.
    Type: Application
    Filed: June 18, 2025
    Publication date: December 25, 2025
    Inventors: LI-CHEN WEI, KER TAI CHU
  • Publication number: 20250057036
    Abstract: A light-emitting element includes a substrate and a protective laver. A plurality of bumps is disposed above the substrate and between the substrate and the protective layer, wherein the plurality of bumps include two adjacent bumps, and an organic light-emitting unit including an organic material is disposed between the two adjacent bumps. At least one of the plurality of bumps includes a surface facing away from the substrate, the surface includes a corrugated portion, and the corrugated portion includes a vertex facing the substrate. The light-emitting element also includes an optical absorption unit, which is disposed between the substrate and the protective layer.
    Type: Application
    Filed: March 31, 2023
    Publication date: February 13, 2025
    Inventors: HUEI-SIOU CHEN, LI-CHEN WEI, KUO-CHENG HSU, KER TAI CHU
  • Publication number: 20240237378
    Abstract: An organic light emitting element includes a substrate, a first electrode, an organic light emitting layer, and a fluorine-containing ion residue region. The first electrode is over the substrate. The organic light emitting layer is over the first electrode. The fluorine-containing ion residue region is on at least one surface of the organic light emitting layer.
    Type: Application
    Filed: October 25, 2023
    Publication date: July 11, 2024
    Inventors: HUEI-SIOU CHEN, LI-CHEN WEI, KUO-CHENG HSU, KER TAI CHU
  • Publication number: 20240138171
    Abstract: An organic light emitting element includes a substrate, a first electrode, an organic light emitting layer, and a fluorine-containing ion residue region. The first electrode is over the substrate. The organic light emitting layer is over the first electrode. The fluorine-containing ion residue region is on at least one surface of the organic light emitting layer.
    Type: Application
    Filed: October 24, 2023
    Publication date: April 25, 2024
    Inventors: HUEI-SIOU CHEN, LI-CHEN WEI, KUO-CHENG HSU, KER TAI CHU
  • Publication number: 20240032330
    Abstract: A light-emitting element comprises a substrate, a light shielding layer, a capping layer and a plurality of protrusions. The light shielding layer is above the substrate. The capping layer is above the light shielding layers. The plurality of protrusions is arranged over the substrate, an organic light-emitting unit comprising an organic material being disposed between two adjacent protrusions of the plurality of protrusions. An edge of the light shielding layer is misaligned with an edge of one of the plurality of protrusions. The organic light-emitting unit includes a first light-emitting unit and a second light-emitting unit. The first light-emitting unit and the second light-emitting unit respectively have an organic light-emitting stack layer comprising an organic material.
    Type: Application
    Filed: May 15, 2023
    Publication date: January 25, 2024
    Inventors: HUEI-SIOU CHEN, LI-CHEN WEI, KUO-CHENG HSU
  • Publication number: 20240023386
    Abstract: A light-emitting element comprises a substrate, a plurality of light shielding layers, a capping layer, a conductive layer and a plurality of protrusions. The plurality of light shielding layers is under the substrate. The capping layer contacts a first surface of the substrate and covers the plurality of light shielding layers. The conductive layer contacts a second surface of the substrate. The plurality of protrusions is arranged on the second surface of the substrate and covers a part of the conductive layer, and an organic light-emitting unit comprising an organic material is disposed between two adjacent protrusions of the plurality of protrusions. One of the plurality of protrusions has an edge, which is offset from an edge of one of the plurality of light shielding layers in the longitudinal direction from each other.
    Type: Application
    Filed: May 15, 2023
    Publication date: January 18, 2024
    Inventors: HUEI-SIOU CHEN, KUO-CHENG HSU, LI-CHEN WEI
  • Patent number: 11251244
    Abstract: A light-emitting device includes a substrate, a plurality of bumps over the substrate; and a plurality of light-emitting units separated by the bumps. Each of the light-emitting units includes a first electrode on the substrate, an organic layer on the first electrode, and a second electrode on the organic layer. The light-emitting units comprise a first light-emitting unit and a second light-emitting unit, and the first light-emitting unit further includes an intermediate layer between the organic layer and the second electrode. The organic layer of the first light-emitting unit includes a first material, the second electrodes of the first light-emitting unit and the second light-emitting unit include an electrode material, and the intermediate layer of the first light-emitting unit includes the first material and the electrode material.
    Type: Grant
    Filed: January 21, 2020
    Date of Patent: February 15, 2022
    Assignee: INT TECH CO., LTD.
    Inventors: Huei-Siou Chen, Li-Chen Wei
  • Patent number: 11145844
    Abstract: A method of manufacturing an electroluminescent device includes the following steps. A substrate including a first sub-pixel region and a second sub-pixel region is provided. A first light-emitting layer is formed over the substrate through a shadow mask to cover the first sub-pixel region and at least a portion of the second sub-pixel region. A sacrificial layer is formed over the substrate, wherein the sacrificial layer includes an opening exposing a portion of the first light-emitting layer that is over the second sub-pixel region. The portion of the first light-emitting layer that is over the second sub-pixel region is removed. A second light-emitting layer is formed over the sacrificial layer and on the second sub-pixel region through the opening of the sacrificial layer. The sacrificial layer is removed simultaneously with a portion of the second light-emitting layer that is over the sacrificial layer.
    Type: Grant
    Filed: January 21, 2020
    Date of Patent: October 12, 2021
    Assignee: INT TECH CO., LTD.
    Inventors: Huei-Siou Chen, Yi-Cheng Liu, Li-Chen Wei
  • Patent number: 10804347
    Abstract: A display panel includes a display device, a light-guiding structure and an anti-reflection structure. The light-guiding structure is disposed between the pixels to guide light beams emitted from the pixels toward a display surface. The anti-reflection structure is over the pixels of the display device, wherein the anti-reflection structure includes a photo-sensitive alignment layer, a liquid crystal circular polarizer and a linear polarizer. The photo-sensitive alignment layer is over the optical absorbing layer, wherein the photo-sensitive alignment layer is sensitive to and curable by the light within the wavelength range. The liquid crystal circular polarizer is over the photo-sensitive alignment layer, wherein the liquid crystal circular polarizer includes a plurality of liquid crystal molecules aligned by the photo-sensitive alignment layer. The linear polarizer is over the liquid crystal circular polarizer.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: October 13, 2020
    Assignee: INT TECH CO., LTD.
    Inventors: Yu-Chen Liu, Li-Chen Wei, Huei-Siou Chen
  • Publication number: 20200274110
    Abstract: A method of manufacturing an electroluminescent device includes the following steps. A substrate including a first sub-pixel region and a second sub-pixel region is provided. A first light-emitting layer is formed over the substrate through a shadow mask to cover the first sub-pixel region and at least a portion of the second sub-pixel region. A sacrificial layer is formed over the substrate, wherein the sacrificial layer includes an opening exposing a portion of the first light-emitting layer that is over the second sub-pixel region. The portion of the first light-emitting layer that is over the second sub-pixel region is removed. A second light-emitting layer is formed over the sacrificial layer and on the second sub-pixel region through the opening of the sacrificial layer. The sacrificial layer is removed simultaneously with a portion of the second light-emitting layer that is over the sacrificial layer.
    Type: Application
    Filed: January 21, 2020
    Publication date: August 27, 2020
    Inventors: HUEI-SIOU CHEN, YI-CHENG LIU, LI-CHEN WEI
  • Patent number: 10720594
    Abstract: A light emitting device includes a substrate and a light emitting unit over the substrate. The light emitting unit includes a first electrode, an organic emissive layer over the first electrode, a first electron transportation layer over the organic emissive layer, and a metal-containing layer over the first transportation layer. An end of the first electron transportation layer meets the organic emissive layer and the metal-containing layer at a first meeting point, the organic emissive layer has an end which is close to the first meeting point meets the metal-containing layer at a second meeting point, the second meeting point is spaced apart from the first meeting point and away from the first electron transportation layer. Further, at least one of the first electron transportation layer and the metal-containing layer includes transitional metal or alkali metal.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: July 21, 2020
    Assignee: INT TECH CO., LTD.
    Inventors: Cheng-Hsin Chen, Huei-Siou Chen, Li-Chen Wei
  • Publication number: 20200207752
    Abstract: The present disclosure provides an organic electroluminescent compound represented by the formula (1): wherein each of R1 and R2 is independently an electron-donating group and each of n and m is independently an integer between 1 and 4. The present disclosure further provides an organic light-emitting device and an organic electroluminescent device each comprising the organic electroluminescent compound represented by the formula (I).
    Type: Application
    Filed: December 26, 2018
    Publication date: July 2, 2020
    Inventors: LI-CHEN WEI, MIN-HSIEN CHEN
  • Publication number: 20200161396
    Abstract: A light-emitting device includes a substrate, a plurality of bumps over the substrate; and a plurality of light-emitting units separated by the bumps. Each of the light-emitting units includes a first electrode on the substrate, an organic layer on the first electrode, and a second electrode on the organic layer. The light-emitting units comprise a first light-emitting unit and a second light-emitting unit, and the first light-emitting unit further includes an intermediate layer between the organic layer and the second electrode. The organic layer of the first light-emitting unit includes a first material, the second electrodes of the first light-emitting unit and the second light-emitting unit include an electrode material, and the intermediate layer of the first light-emitting unit includes the first material and the electrode material.
    Type: Application
    Filed: January 21, 2020
    Publication date: May 21, 2020
    Inventors: HUEI-SIOU CHEN, LI-CHEN WEI
  • Publication number: 20200105846
    Abstract: A display panel includes a display device, a light-guiding structure and an anti-reflection structure. The light-guiding structure is disposed between the pixels to guide light beams emitted from the pixels toward a display surface. The anti-reflection structure is over the pixels of the display device, wherein the anti-reflection structure includes a photo-sensitive alignment layer, a liquid crystal circular polarizer and a linear polarizer. The photo-sensitive alignment layer is over the optical absorbing layer, wherein the photo-sensitive alignment layer is sensitive to and curable by the light within the wavelength range. The liquid crystal circular polarizer is over the photo-sensitive alignment layer, wherein the liquid crystal circular polarizer includes a plurality of liquid crystal molecules aligned by the photo-sensitive alignment layer. The linear polarizer is over the liquid crystal circular polarizer.
    Type: Application
    Filed: December 2, 2019
    Publication date: April 2, 2020
    Inventors: Yu-Chen LIU, Li-Chen Wei, Huei-Siou Chen
  • Patent number: 10581011
    Abstract: A light emitting device includes a substrate and a light emitting layer over the substrate, the light emitting layer. The light emitting layer has a light emitting pixel array including a plurality of light emitting pixels and a spacer. The spacer is configured to separating the plurality of light emitting pixels. Each light emitting pixel has a light emitting material and an electrode between the light emitting material and the substrate. The spacer has a bump having a curved surface extruding away from the substrate, and the bump covers a peripheral region of the electrode.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: March 3, 2020
    Assignee: INT TECH CO., LTD.
    Inventors: Huei-Siou Chen, Li-Chen Wei
  • Publication number: 20200020872
    Abstract: A light emitting device includes a substrate and a light emitting unit over the substrate. The light emitting unit includes a first electrode, an organic emissive layer over the first electrode, a first electron transportation layer over the organic emissive layer, and a metal-containing layer over the first transportation layer. An end of the first electron transportation layer meets the organic emissive layer and the metal-containing layer at a first meeting point, the organic emissive layer has an end which is close to the first meeting point meets the metal-containing layer at a second meeting point, the second meeting point is spaced apart from the first meeting point and away from the first electron transportation layer. Further, at least one of the first electron transportation layer and the metal-containing layer includes transitional metal or alkali metal.
    Type: Application
    Filed: September 20, 2019
    Publication date: January 16, 2020
    Inventors: CHENG-HSIN CHEN, HUEI-SIOU CHEN, LI-CHEN WEI
  • Publication number: 20190372047
    Abstract: A light emitting device includes a substrate and a light emitting layer over the substrate, the light emitting layer. The light emitting layer has a light emitting pixel array including a plurality of light emitting pixels and a spacer. The spacer is configured to separating the plurality of light emitting pixels. Each light emitting pixel has a light emitting material and an electrode between the light emitting material and the substrate. The spacer has a bump having a curved surface extruding away from the substrate, and the bump covers a peripheral region of the electrode.
    Type: Application
    Filed: June 1, 2018
    Publication date: December 5, 2019
    Inventors: HUEI-SIOU CHEN, LI-CHEN WEI
  • Patent number: 10490778
    Abstract: A light emitting device includes a window over a light emitting pixel. A light reflection performance of the light emitting pixel to an incoming ambient light is configured by the window to be appeared to have at least two regions, wherein one region of the at least two regions has a smaller transmittance to the incoming ambient light than the other.
    Type: Grant
    Filed: August 16, 2018
    Date of Patent: November 26, 2019
    Assignee: INT TECH CO., LTD.
    Inventors: Li-Min Huang, Li-Chen Wei