Patents Assigned to Jade Bird Display (Shanghai) Limited
  • Publication number: 20240322104
    Abstract: A micro multi-color LED device includes two or more LED structures for emitting a range of colors. The two or more LED structures are vertically stacked to combine light from the two or more LED structures. Light from the micro multi-color LED device is emitted substantially vertically upward through each of the LED structures. In some embodiments, each LED structure is connected to a pixel driver and/or a common electrode. The LED structures are bonded together through bonding layers. In some embodiments, planarization layers enclose each of the LED structures or the micro multi-color LED device. In some embodiments, one or more of reflective layers, refractive layers, micro-lenses, spacers, and reflective cup structures are implemented in the device to improve the LED emission efficiency. A display panel comprising an array of the micro tri-color LED devices has a high resolution and a high illumination brightness.
    Type: Application
    Filed: May 31, 2024
    Publication date: September 26, 2024
    Applicant: Jade Bird Display (Shanghai) Limited
    Inventors: Qunchao XU, Huiwen XU, Qiming LI
  • Publication number: 20240258294
    Abstract: A micro multi-color LED device includes two or more LED structures for emitting a range of colors. The two or more LED structures are vertically stacked to combine light from the two more LED structures. Light from the micro multi-color LED device is emitted horizontally from each of the LED structures and reflected upward via some reflective structures. In some embodiments, each LED structure is connected to a pixel driver and/or a common electrode. The LED structures are bonded together through bonding layers. In some embodiments, planarization layers enclose each of the LED structures or the micro multi-color LED device. In some embodiments, one or more of reflective layers, refractive layers, micro-lenses, spacers, and reflective cup structures are implemented in the device to improve the LED emission efficiency. A display panel comprising an array of the micro tri-color LED devices has a high resolution and a high illumination brightness.
    Type: Application
    Filed: March 7, 2024
    Publication date: August 1, 2024
    Applicant: Jade Bird Display (Shanghai) Limited
    Inventors: Qunchao Xu, Huiwen Xu, Qiming Li
  • Publication number: 20240250111
    Abstract: A micro multi-color LED device includes two or more LED structures for emitting a range of colors. The two or more LED structures are vertically stacked to combine light from the two more LED structures. In some embodiments, each LED structure is connected to a pixel driver and a shared P-electrode. The LED structures are bonded together through bonding layers. In some embodiments, reflection layers are implemented in the device to improve the LED emission efficiency. A display panel comprising an array of the micro tri-color LED devices has a high resolution and a high illumination brightness.
    Type: Application
    Filed: March 2, 2024
    Publication date: July 25, 2024
    Applicant: Jade Bird Display (Shanghai) Limited
    Inventors: Qiming Li, Qunchao Xu
  • Publication number: 20240145657
    Abstract: A micro light emitting diode (LED) having a high light extraction efficiency includes a bottom conductive layer, a light emitting layer on the bottom conductive layer, and a top conductive structure on the light emitting layer. The micro LED additionally includes a conductive side arm electrically connecting the sidewall of the light emitting layer with the bottom conductive layer, and a reflective bottom dielectric layer arranged under the light emitting layer and above the bottom conductive layer. In some embodiments, the micro LED further includes an ohmic contact between the top conductive structure and the light emitting layer that has a small area and is transparent, thereby increasing the light emergent area and improving the light extraction efficiency.
    Type: Application
    Filed: January 11, 2024
    Publication date: May 2, 2024
    Applicant: Jade Bird Display (Shanghai) Limited
    Inventor: Qiming Li
  • Patent number: 11967589
    Abstract: A micro multi-color LED device includes two or more LED structures for emitting a range of colors. The two or more LED structures are vertically stacked to combine light from the two more LED structures. Light from the micro multi-color LED device is emitted horizontally from each of the LED structures and reflected upward via some reflective structures. In some embodiments, each LED structure is connected to a pixel driver and/or a common electrode. The LED structures are bonded together through bonding layers. In some embodiments, planarization layers enclose each of the LED structures or the micro multi-color LED device. In some embodiments, one or more of reflective layers, refractive layers, micro-lenses, spacers, and reflective cup structures are implemented in the device to improve the LED emission efficiency. A display panel comprising an array of the micro tri-color LED devices has a high resolution and a high illumination brightness.
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: April 23, 2024
    Assignee: Jade Bird Display (Shanghai) Limited
    Inventors: Qunchao Xu, Huiwen Xu, Qiming Li
  • Patent number: 11935911
    Abstract: The present invention discloses a double color micro LED display panel including a plurality of pixels. Each of the pixels includes a substrate, a first semiconductor layer configured on the substrate, a second semiconductor layer configured on the first semiconductor layer, and a third semiconductor layer configured between the first semiconductor layer and the second semiconductor layer. The first semiconductor layer and the second semiconductor layer are P type, and the third semiconductor layer is N type. The first semiconductor layer and the third semiconductor layer form a first light emitting diode to emit a first light, and the second semiconductor layer and the third semiconductor layer form a second light emitting diode to emit a second light.
    Type: Grant
    Filed: April 27, 2022
    Date of Patent: March 19, 2024
    Assignee: Jade Bird Display (Shanghai) Limited
    Inventors: Quchao Xu, Qiming Li
  • Publication number: 20240072202
    Abstract: Epitaxial structure for micro light emitting diode (LED) includes, from bottom to top, a semiconductor substrate (102), an N-type electrical conductive layer (108), a N-type cladding layer (110), an active light emitting layer (114), a P-type cladding layer (118), and a P-type electrical conductive layer (120,122,124). The epitaxial structure for micro LED further includes an oxide layer (210) within the N-type cladding layer (110) and/or between the N-type electrical conductive layer (108) and the N-type cladding layer (110), and/or an oxide layer (410) within the P-type cladding layer (118) and/or between the P-type electrical conductive layer (120,122,124) and the P-type cladding layer (118). The oxide layer (210,410) is formed as an oxide ring, which effectively increases the PN junction current density and the light emission efficiency of the LED device. A one-time or a two-time transfer fabrication process is used to form the LED device.
    Type: Application
    Filed: January 8, 2021
    Publication date: February 29, 2024
    Applicant: Jade Bird Display (Shanghai) Limited
    Inventors: Qiming Li, Anle FANG
  • Patent number: 11908988
    Abstract: A micro light emitting diode (LED) having a high light extraction efficiency includes a bottom conductive layer, a light emitting layer on the bottom conductive layer, and a top conductive structure on the light emitting layer. The micro LED additionally includes a conductive side arm electrically connecting the sidewall of the light emitting layer with the bottom conductive layer, and a reflective bottom dielectric layer arranged under the light emitting layer and above the bottom conductive layer. In some embodiments, the micro LED further includes an ohmic contact between the top conductive structure and the light emitting layer that has a small area and is transparent, thereby increasing the light emergent area and improving the light extraction efficiency.
    Type: Grant
    Filed: March 5, 2023
    Date of Patent: February 20, 2024
    Assignee: Jade Bird Display (Shanghai) Limited
    Inventor: Qiming Li
  • Patent number: 11811005
    Abstract: A light-emitting diode (LED) chip structure with a cup-like reflective element is provided. The LED chip structure comprises a substrate, an isolation element and a mesa including an LED surrounded by the isolation element. The isolation element comprises an upper isolation part and a lower isolation part. The lower isolation part is positioned in the substrate and the upper isolation part protrudes from a surface of the substrate. A reflective layer is disposed on a sidewall of the upper isolation part, and a bottom of the reflective layer does not contact the mesa. The cup-like reflective element at least includes the isolation element with the reflective layer.
    Type: Grant
    Filed: April 21, 2021
    Date of Patent: November 7, 2023
    Assignee: Jade Bird Display (Shanghai) Limited
    Inventor: Qiming Li
  • Patent number: 11804582
    Abstract: A light-emitting diode (LED) chip structure with a cup-like reflective element is provided. The LED chip structure comprises a substrate, an isolation element and a mesa including an LED surrounded by the isolation element. The isolation element comprises an upper isolation part and a lower isolation part. The lower isolation part is positioned in the substrate and the upper isolation part protrudes from a surface of the substrate. A reflective layer is disposed on a sidewall of the upper isolation part, and a bottom of the reflective layer does not contact the mesa. The cup-like reflective element at least includes the isolation element with the reflective layer.
    Type: Grant
    Filed: April 21, 2021
    Date of Patent: October 31, 2023
    Assignee: Jade Bird Display (Shanghai) Limited
    Inventor: Qiming Li
  • Patent number: 11782191
    Abstract: Various embodiments include a display panel with an integrated micro-lens array. The display panel typically includes an array of mesas which includes an array of pixel light sources (e.g., LEDs) electrically coupled to corresponding pixel driver circuits (e.g., FETs). The array of micro-lenses is aligned to the mesas including the pixel light sources, and positioned to reduce the divergence of light produced by the pixel light sources. In some embodiments, the array of micro-lenses formed from a micro-lens material layer is formed directly on top of the mesas. The display panel may also include an integrated optical spacer formed from the same micro-lens material layer to maintain the positioning between the micro-lenses and pixel driver circuits.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: October 10, 2023
    Assignee: Jade Bird Display (Shanghai) Limited
    Inventors: Qiming Li, Yuankun Zhu, Shuang Zhao
  • Publication number: 20230307591
    Abstract: Various embodiments include a display panel with an integrated micro-lens array. The display panel typically includes an array of mesas which includes an array of pixel light sources (e.g., LEDs) electrically coupled to corresponding pixel driver circuits (e.g., FETs). The array of micro-lenses is aligned to the mesas including the pixel light sources, and positioned to reduce the divergence of light produced by the pixel light sources. In some embodiments, the array of micro-lenses formed from a micro-lens material layer is formed directly on top of the mesas. The display panel may also include an integrated optical spacer formed from the same micro-lens material layer to maintain the positioning between the micro-lenses and pixel driver circuits.
    Type: Application
    Filed: May 19, 2023
    Publication date: September 28, 2023
    Applicant: Jade Bird Display (Shanghai) Limited
    Inventors: Qiming Li, Yuankun Zhu, Shuang Zhao
  • Patent number: 11721717
    Abstract: The present invention discloses an optical system including a light combination unit, a first LED panel and a second LED panel. The first LED panel is located at one side of the light combination unit and configured to emit a first light. The second LED panel is located at another side of the light combination unit and configured to emit a second light. The first LED panel is a monochrome LED panel, and the second LED panel is a double color LED panel. The first LED panel and the second LED panel respectively emit the first light and the second light into the light combination unit, and the light combination unit combines and collimates the first light and the second light along one direction.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: August 8, 2023
    Assignee: Jade Bird Display (Shanghai) Limited
    Inventors: Quchao Xu, Qiming Li
  • Publication number: 20230216014
    Abstract: A micro light emitting diode (LED) having a high light extraction efficiency includes a bottom conductive layer, a light emitting layer on the bottom conductive layer, and a top conductive structure on the light emitting layer. The micro LED additionally includes a conductive side arm electrically connecting the sidewall of the light emitting layer with the bottom conductive layer, and a reflective bottom dielectric layer arranged under the light emitting layer and above the bottom conductive layer. In some embodiments, the micro LED further includes an ohmic contact between the top conductive structure and the light emitting layer that has a small area and is transparent, thereby increasing the light emergent area and improving the light extraction efficiency.
    Type: Application
    Filed: March 5, 2023
    Publication date: July 6, 2023
    Applicant: Jade Bird Display (Shanghai) Limited
    Inventor: Qiming LI
  • Publication number: 20230207765
    Abstract: A micro light emitting diode (LED) having a high light extraction efficiency includes a bottom conductive layer, a light emitting layer on the bottom conductive layer, and a top conductive structure on the light emitting layer. The micro LED additionally includes a conductive side arm electrically connecting the sidewall of the light emitting layer with the bottom conductive layer, and a reflective bottom dielectric layer arranged under the light emitting layer and above the bottom conductive layer. In some embodiments, the micro LED further includes an ohmic contact between the top conductive structure and the light emitting layer that has a small area and is transparent, thereby increasing the light emergent area and improving the light extraction efficiency.
    Type: Application
    Filed: March 5, 2023
    Publication date: June 29, 2023
    Applicant: Jade Bird Display (Shanghai) Limited
    Inventor: Qiming LI
  • Patent number: 11646300
    Abstract: The present invention discloses a double color micro LED display panel including a plurality of pixels and a plurality of barrier components. Each of the pixels includes a substrate, a first bonding layer configured on the substrate, a first light emitting layer configured on the first bonding layer and emitting a first light, a second bonding layer configured on the first light emitting layer and a second light emitting layer configured on the second bonding layer and emitting a second light. The wavelength of the second light is different from that of the first light. The barrier components respectively located between the pixels for blocking a light emitted from one of the pixels to the other of the pixels. Wherein, the material of the second bonding layer is a non-metallic material.
    Type: Grant
    Filed: September 1, 2020
    Date of Patent: May 9, 2023
    Assignee: Jade Bird Display (Shanghai) Limited
    Inventors: Quchao Xu, Qiming Li
  • Patent number: 11626550
    Abstract: A micro light emitting diode (LED) having a high light extraction efficiency includes a bottom conductive layer, a light emitting layer on the bottom conductive layer, and a top conductive structure on the light emitting layer. The micro LED additionally includes a conductive side arm electrically connecting the sidewall of the light emitting layer with the bottom conductive layer, and a reflective bottom dielectric layer arranged under the light emitting layer and above the bottom conductive layer. In some embodiments, the micro LED further includes an ohmic contact between the top conductive structure and the light emitting layer that has a small area and is transparent, thereby increasing the light emergent area and improving the light extraction efficiency.
    Type: Grant
    Filed: January 22, 2021
    Date of Patent: April 11, 2023
    Assignee: Jade Bird Display (Shanghai) Limited
    Inventor: Qiming Li
  • Patent number: 11621383
    Abstract: A micro light emitting diode (LED) having a high light extraction efficiency includes a bottom conductive layer, a light emitting layer on the bottom conductive layer, and a top conductive structure on the light emitting layer. The micro LED additionally includes a conductive side arm electrically connecting the sidewall of the light emitting layer with the bottom conductive layer, and a reflective bottom dielectric layer arranged under the light emitting layer and above the bottom conductive layer. In some embodiments, the micro LED further includes an ohmic contact between the top conductive structure and the light emitting layer that has a small area and is transparent, thereby increasing the light emergent area and improving the light extraction efficiency.
    Type: Grant
    Filed: January 22, 2021
    Date of Patent: April 4, 2023
    Assignee: Jade Bird Display (Shanghai) Limited
    Inventor: Qiming Li
  • Publication number: 20230077969
    Abstract: A micro multi-color LED device includes two or more LED structures for emitting a range of colors. The two or more LED structures are vertically stacked to combine light from the two more LED structures. In some embodiments, each LED structure is connected to a pixel driver and a shared P-electrode. The LED structures are bonded together through bonding layers. In some embodiments, reflection layers are implemented in the device to improve the LED emission efficiency. A display panel comprising an array of the micro tri-color LED devices has a high resolution and a high illumination brightness.
    Type: Application
    Filed: November 17, 2022
    Publication date: March 16, 2023
    Applicant: Jade Bird Display (Shanghai) Limited
    Inventors: Qiming LI, Qunchao XU
  • Patent number: 11538850
    Abstract: A micro multi-color LED device includes two or more LED structures for emitting a range of colors. The two or more LED structures are vertically stacked to combine light from the two more LED structures. In some embodiments, each LED structure is connected to a pixel driver and a shared P-electrode. The LED structures are bonded together through bonding layers. In some embodiments, reflection layers are implemented in the device to improve the LED emission efficiency. A display panel comprising an array of the micro tri-color LED devices has a high resolution and a high illumination brightness.
    Type: Grant
    Filed: June 18, 2020
    Date of Patent: December 27, 2022
    Assignee: Jade Bird Display (Shanghai) Limited
    Inventors: Qiming Li, Qunchao Xu