Patents by Inventor Chih-Li Chuang
Chih-Li Chuang 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).
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Patent number: 11609427Abstract: A dual-mode augmented/virtual reality near-eye wearable display for use with a curved lens element. The lenses are provided with one or more transparent waveguide elements that are disposed within the thickness of the lenses. The waveguide elements are configured to couple display images directly from image sources such as emissive display imagers to an exit aperture or plurality of exit aperture sub-regions within a viewer's field of view. In a preferred embodiment, a plurality of image sources are disposed on the peripheral surface of the lenses whereby each image source has a dedicated input image aperture and exit aperture sub-region that are each “piecewise flat” and have matched areas and angles of divergence whereby a viewer is presented with the output of the plurality of image source images within the viewer's field of view.Type: GrantFiled: October 14, 2016Date of Patent: March 21, 2023Assignee: Ostendo Technologies, Inc.Inventors: Hussein S. El-Ghoroury, Chih-Li Chuang, Biagio Agostinelli
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Patent number: 11598954Abstract: Emissive micro-pixel spatial light modulators with non-telecentric emission are introduced. The individual light emission from each multi-color micro-scale emissive pixel is directionally modulated in a unique direction to enable application-specific non-telecentric emission pattern from the micro-pixel array of the emissive spatial light modulator. Design methods for directionally modulating the light emission of the individual micro-pixels using micro-pixel level optics are described. Monolithic wafer level optics methods for fabricating the micro-pixel level optics are also described. An emissive multi-color micro-pixel spatial light modulator with non-telecentric emission is used to exemplify the methods and possible applications of the present invention: ultra-compact image projector, minimal cross-talk 3D light field display, multi-view 2D display, and directionally modulated waveguide optics for see-through near-eye displays.Type: GrantFiled: January 29, 2020Date of Patent: March 7, 2023Assignee: Ostendo Technologies, Inc.Inventors: Hussein S. El-Ghoroury, Mahesh Pitchumani, Zahir Alpaslan, Chih-Li Chuang, Dale McNeill
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Publication number: 20220262980Abstract: Disclosed herein are multi-layered optically active regions for semiconductor light-emitting devices (LEDs) that incorporate intermediate carrier blocking layers, the intermediate carrier blocking layers having design parameters for compositions and doping levels selected to provide at least one strain compensation layer and efficient control over the carrier injection distribution across the active regions to achieve desired device injection characteristics. Examples of embodiments discussed herein include, among others: a multiple-quantum-well variable-color LED operating in visible optical range with full coverage of RGB gamut, a multiple-quantum-well variable-color LED operating in visible optical range with an extended color gamut beyond standard RGB gamut, a multiple-quantum-well light-white emitting LED with variable color temperature, and a multiple-quantum-well LED with uniformly populated active layers.Type: ApplicationFiled: May 2, 2022Publication date: August 18, 2022Applicant: Ostendo Technologies, Inc.Inventors: Hussein El-Ghoroury, Mikhail v. Kisin, Yea-Chuan Milton Yea, Chih-Li Chuang, Jyh-Chia Chen
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Patent number: 11335829Abstract: Disclosed herein are multi-layered optically active regions for semiconductor light-emitting devices (LEDs) that incorporate intermediate carrier blocking layers, the intermediate carrier blocking layers having design parameters for compositions and doping levels selected to provide efficient control over the carrier injection distribution across the active regions to achieve desired device injection characteristics. Examples of embodiments discussed herein include, among others: a multiple-quantum-well variable-color LED operating in visible optical range with full coverage of RGB gamut, a multiple-quantum-well variable-color LED operating in visible optical range with an extended color gamut beyond standard RGB gamut, a multiple-quantum-well light-white emitting LED with variable color temperature, and a multiple-quantum-well LED with uniformly populated active layers.Type: GrantFiled: November 10, 2021Date of Patent: May 17, 2022Assignee: Ostendo Technologies, Inc.Inventors: Hussein S. El-Ghoroury, Mikhail V. Kisin, Yea-Chuan Milton Yeh, Chih-Li Chuang, Jyh-Chia Chen
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Patent number: 11329191Abstract: Disclosed herein are multi-layered optically active regions for semiconductor light-emitting devices (LEDs) that incorporate intermediate carrier blocking layers, the intermediate carrier blocking layers having design parameters for compositions and doping levels selected to provide efficient control over the carrier injection distribution across the active regions to achieve desired device injection characteristics. Examples of embodiments discussed herein include, among others: a multiple-quantum-well variable-color LED operating in visible optical range with full coverage of RGB gamut, a multiple-quantum-well variable-color LED operating in visible optical range with an extended color gamut beyond standard RGB gamut, a multiple-quantum-well light-white emitting LED with variable color temperature, and a multiple-quantum-well LED with uniformly populated active layers.Type: GrantFiled: November 18, 2021Date of Patent: May 10, 2022Assignee: Ostendo Technologies, inc.Inventors: Hussein S. El-Ghoroury, Mikhail V. Kisin, Yea-Chuan Milton Yeh, Chih-Li Chuang, Jyh-Chia Chen
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Publication number: 20220123170Abstract: Disclosed herein are multi-layered optically active regions for semiconductor light-emitting devices (LEDs) that incorporate intermediate carrier blocking layers, the intermediate carrier blocking layers having design parameters for compositions and doping levels selected to provide efficient control over the carrier injection distribution across the active regions to achieve desired device injection characteristics. Examples of embodiments discussed herein include, among others: a multiple-quantum-well variable-color LED operating in visible optical range with full coverage of RGB gamut, a multiple-quantum-well variable-color LED operating in visible optical range with an extended color gamut beyond standard RGB gamut, a multiple-quantum-well light-white emitting LED with variable color temperature, and a multiple-quantum-well LED with uniformly populated active layers.Type: ApplicationFiled: November 18, 2021Publication date: April 21, 2022Inventors: Hussein S. El-Ghoroury, Mikhail V. Kisin, Yea-Chuan Milton Yeh, Chih-Li Chuang, Jyh-Chia Chen
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Publication number: 20220123169Abstract: Disclosed herein are multi-layered optically active regions for semiconductor light-emitting devices (LEDs) that incorporate intermediate carrier blocking layers, the intermediate carrier blocking layers having design parameters for compositions and doping levels selected to provide efficient control over the carrier injection distribution across the active regions to achieve desired device injection characteristics. Examples of embodiments discussed herein include, among others: a multiple-quantum-well variable-color LED operating in visible optical range with full coverage of RGB gamut, a multiple-quantum-well variable-color LED operating in visible optical range with an extended color gamut beyond standard RGB gamut, a multiple-quantum-well light-white emitting LED with variable color temperature, and a multiple-quantum-well LED with uniformly populated active layers.Type: ApplicationFiled: November 10, 2021Publication date: April 21, 2022Inventors: Hussein S. El-Ghoroury, Mikhail V. Kisin, Yea-Chuan Milton Yeh, Chih-Li Chuang, Jyh-Chia Chen
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Publication number: 20210343900Abstract: Disclosed herein are multi-layered optically active regions for semiconductor light-emitting devices (LEDs) that incorporate intermediate carrier blocking layers, the intermediate carrier blocking layers having design parameters for compositions and doping levels selected to provide efficient control over the carrier injection distribution across the active regions to achieve desired device injection characteristics. Examples of embodiments discussed herein include, among others: a multiple-quantum-well variable-color LED operating in visible optical range with full coverage of RGB gamut, a multiple-quantum-well variable-color LED operating in visible optical range with an extended color gamut beyond standard RGB gamut, a multiple-quantum-well light-white emitting LED with variable color temperature, and a multiple-quantum-well LED with uniformly populated active layers.Type: ApplicationFiled: July 12, 2021Publication date: November 4, 2021Inventors: Hussein S. El-Ghoroury, Mikhail V. Kisin, Yea-Chuan Milton Yeh, Chih-Li Chuang, Jyh-Chia Chen
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Patent number: 11063179Abstract: Disclosed herein are multi-layered optically active regions for semiconductor light-emitting devices (LEDs) that incorporate intermediate carrier blocking layers, the intermediate carrier blocking layers having design parameters for compositions and doping levels selected to provide efficient control over the carrier injection distribution across the active regions to achieve desired device injection characteristics. Examples of embodiments discussed herein include, among others: a multiple-quantum-well variable-color LED operating in visible optical range with full coverage of RGB gamut, a multiple-quantum-well variable-color LED operating in visible optical range with an extended color gamut beyond standard RGB gamut, a multiple-quantum-well light-white emitting LED with variable color temperature, and a multiple-quantum-well LED with uniformly populated active layers.Type: GrantFiled: June 3, 2016Date of Patent: July 13, 2021Assignee: Ostendo Technologies, Inc.Inventors: Hussein S. El-Ghoroury, Mikhail V. Kisin, Yea-Chuan Milton Yeh, Chih-Li Chuang, Jyh-Chia Chen
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Patent number: 11048089Abstract: A system for near-eye display applications. A lens is provided with a beam-splitting interface horizontally along the width of the lens. Two display devices per lens are provided and disposed on the perimeter surface of the lens opposing an overlapped, prismatic facet optics assembly which balances aberration introduced by the slight symmetry break in the lens.Type: GrantFiled: July 8, 2019Date of Patent: June 29, 2021Assignee: Ostendo Technologies, Inc.Inventors: Jingbo Cai, Hussein S. El-Ghoroury, Marty Maiers, Chih-Li Chuang
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Patent number: 10983350Abstract: A system for near-eye display applications. A lens is provided with a beam-splitting interface horizontally along the width of the lens. Two display devices per lens are provided and disposed on the perimeter surface of the lens opposing an overlapped, prismatic facet optics assembly which balances aberration introduced by the slight symmetry break in the lens.Type: GrantFiled: July 8, 2019Date of Patent: April 20, 2021Assignee: Ostendo Technologies, Inc.Inventors: Jingbo Cai, Hussein S. El-Ghoroury, Marty Maiers, Chih-Li Chuang
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Patent number: 10845591Abstract: A split exit pupil heads-up display (HUD) system and method. The HUD system architecture makes use of a split exit pupil design method that enables a modular HUD system and allows the HUD system viewing eye-box size to be tailored while reducing the overall volumetric aspects. A single HUD module utilizes a micro-pixel imager to generate a HUD virtual image with a given viewing eye-box size. When integrated together into a single HUD system, a multiplicity of such HUD modules displaying the same image enables an integrated HUD system to have an eye-box size that equals the same multiple of the eye-box size of a single HUD module. The brightness of the integrated HUD system is maintained while the eye-box size becomes multiple size of the eye-box of a single module. The integrated HUD system can be comprised of multiplicity of single HUD modules to scale the eye-box size to match the intended application while maintaining system brightness.Type: GrantFiled: October 17, 2017Date of Patent: November 24, 2020Assignee: Ostendo Technologies, Inc.Inventors: Jingbo Cai, Hussein S. El-Ghoroury, Chih-Li Chuang, Marty Maiers
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Publication number: 20200209646Abstract: Emissive micro-pixel spatial light modulators with non-telecentric emission are introduced. The individual light emission from each multi-color micro-scale emissive pixel is directionally modulated in a unique direction to enable application-specific non-telecentric emission pattern from the micro-pixel array of the emissive spatial light modulator. Design methods for directionally modulating the light emission of the individual micro-pixels using micro-pixel level optics are described. Monolithic wafer level optics methods for fabricating the micro-pixel level optics are also described. An emissive multi-color micro-pixel spatial light modulator with non-telecentric emission is used to exemplify the methods and possible applications of the present invention: ultra-compact image projector, minimal cross-talk 3D light field display, multi-view 2D display, and directionally modulated waveguide optics for see-through near-eye displays.Type: ApplicationFiled: January 29, 2020Publication date: July 2, 2020Applicant: Ostendo Technologies, Inc.Inventors: Hussein S. El-Ghoroury, Mahesh Pitchumani, Zahir Alpaslan, Chih-Li Chuang, Dale McNeill
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Patent number: 10585290Abstract: Wearable augmented reality display systems are provided. One or a plurality of emissive display elements are embedded in the bridge area of an eyeglass frame. The lenses are provided with a set of transmissive diffractive optical elements and partially reflective diffractive optical elements. The display outputs are directed toward the lens elements whereby the diffractive elements in turn direct the outputs toward the eye-boxes of the viewer.Type: GrantFiled: July 8, 2019Date of Patent: March 10, 2020Assignee: Ostendo Technologies, IncInventors: Jingbo Cai, Hussein S. El-Ghoroury, Reginald Jonker, Marty Maiers, Chih-Li Chuang
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Patent number: 10578882Abstract: Emissive micro-pixel spatial light modulators with non-telecentric emission are introduced. The individual light emission from each multi-color micro-scale emissive pixel is directionally modulated in a unique direction to enable application-specific non-telecentric emission pattern from the micro-pixel array of the emissive spatial light modulator. Design methods for directionally modulating the light emission of the individual micro-pixels using micro-pixel level optics are described. Monolithic wafer level optics methods for fabricating the micro-pixel level optics are also described. An emissive multi-color micro-pixel spatial light modulator with non-telecentric emission is used to exemplify the methods and possible applications of the present invention: ultra-compact image projector, minimal cross-talk 3D light field display, multi-view 2D display, and directionally modulated waveguide optics for see-through near-eye displays.Type: GrantFiled: December 27, 2016Date of Patent: March 3, 2020Assignee: Ostendo Technologies, Inc.Inventors: Hussein S. El-Ghoroury, Mahesh Pitchumani, Zahir Y. Alpaslan, Chih-Li Chuang, Dale A. McNeill
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Patent number: 10539791Abstract: Split exit pupil (or split eye-box) heads-up display (HUD)systems and methods are described. The described HUD system methods make use of a split exit pupil design method that enables a modular HUD system and allows the HUD system viewing eye-box size to be tailored while reducing the overall HUD volumetric aspects. A HUD module utilizes a high brightness small size micro-pixel imager to generate one or more HUD virtual images with a one or a plurality of given viewing eye-box segment sizes. When integrated together into a HUD system, a multiplicity of such HUD modules displaying the same image would enable such an integrated HUD system to have an eye-box size that is substantially larger than the eye-box size of a HUD module. The resultant integrated HUD system volume is substantially volumetrically smaller than a HUD system that uses a single larger imager.Type: GrantFiled: March 3, 2017Date of Patent: January 21, 2020Assignee: Ostendo Technologies, Inc.Inventors: Hussein S. El-Ghoroury, Jingbo Cai, Chih-Li Chuang, Marty Maiers
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Publication number: 20190331923Abstract: A system for near-eye display applications. A lens is provided with a beam-splitting interface horizontally along the width of the lens. Two display devices per lens are provided and disposed on the perimeter surface of the lens opposing an overlapped, prismatic facet optics assembly which balances aberration introduced by the slight symmetry break in the lens.Type: ApplicationFiled: July 8, 2019Publication date: October 31, 2019Inventors: Jingbo Cai, Hussein S. El-Ghoroury, Marty Maiers, Chih-Li Chuang
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Publication number: 20190331925Abstract: Wearable augmented reality display systems are provided. One or a plurality of emissive display elements are embedded in the bridge area of an eyeglass frame. The lenses are provided with a set of transmissive diffractive optical elements and partially reflective diffractive optical elements. The display outputs are directed toward the lens elements whereby the diffractive elements in turn direct the outputs toward the eye-boxes of the viewer.Type: ApplicationFiled: July 8, 2019Publication date: October 31, 2019Inventors: Jingbo Cai, Hussein S. El-Ghoroury, Reginald Jonker, Marty Maiers, Chih-Li Chuang
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Publication number: 20190331924Abstract: A system for near-eye display applications. A lens is provided with a beam-splitting interface horizontally along the width of the lens. Two display devices per lens are provided and disposed on the perimeter surface of the lens opposing an overlapped, prismatic facet optics assembly which balances aberration introduced by the slight symmetry break in the lens.Type: ApplicationFiled: July 8, 2019Publication date: October 31, 2019Inventors: Jingbo Cai, Hussein S. El-Ghoroury, Marty Maiers, Chih-Li Chuang
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Patent number: 10418516Abstract: Disclosed herein are multi-layered optically active regions for semiconductor light-emitting devices (LEDs) that incorporate intermediate carrier blocking layers, the intermediate carrier blocking layers having design parameters for compositions and doping levels selected to provide efficient control over the carrier injection distribution across the active regions to achieve desired device injection characteristics. Examples of embodiments discussed herein include, among others: a multiple-quantum-well variable-color LED operating in visible optical range with full coverage of RGB gamut, a multiple-quantum-well variable-color LED operating in visible optical range with an extended color gamut beyond standard RGB gamut, a multiple-quantum-well light-white emitting LED with variable color temperature, and a multiple-quantum-well LED with uniformly populated active layers.Type: GrantFiled: May 25, 2018Date of Patent: September 17, 2019Assignee: Ostendo Technologies, Inc.Inventors: Hussein S. El-Ghoroury, Mikhail V. Kisin, Yea-Chuan Milton Yeh, Chih-Li Chuang, Jyh-Chia Chen