Patents by Inventor Richard Han Soo CHO
Richard Han Soo CHO 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: 11841502Abstract: A head-mounted display device includes a first reflective polarizer having a first optical surface and a second optical surface that is opposite to the first optical surface. The first optical surface of the first reflective polarizer is curved, and the first reflective polarizer is configured to reflect light having a first polarization. The head-mounted display device also includes a first electronic display configured to project toward the first reflective polarizer a light pattern. At least a portion of the light pattern is reflected by the first reflective polarizer. Also disclosed is a method, which includes directing a light pattern from the first electronic display toward the first reflective polarizer and reflecting at least a portion of the light pattern toward an eye of a user.Type: GrantFiled: July 1, 2020Date of Patent: December 12, 2023Assignee: META PLATFORMS TECHNOLOGIES, LLCInventors: Youngshik Yoon, Richard Han-Soo Cho
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Patent number: 11703709Abstract: An optical element includes a linear polarizer layer and a transparent optical layer. The linear polarizer layer includes surfaces waviness and the transparent optical layer smooths the surfaces waves of the linear polarizer layer.Type: GrantFiled: February 2, 2021Date of Patent: July 18, 2023Assignee: Meta Platforms Technologies, LLCInventors: Jianing Yao, Daozhi Wang, Silvio Grespan, Weihua Gao, Chia-Hsuan Tai, Shizhe Shen, John Robert Volk, Richard Han Soo Cho
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Patent number: 11621316Abstract: A device such as a micro-OLED includes a display element having a display active area disposed over a silicon backplane and a display driver integrated circuit (DDIC) electrically coupled to the display element through at least one contact that extends through the silicon backplane. Through silicon via (TSV) technology may be used to form the contacts. A chip-on-flex architecture may be used to orient and attach the DDIC to the silicon backplane.Type: GrantFiled: January 20, 2022Date of Patent: April 4, 2023Assignee: Meta Platforms Technologies, LLCInventors: Min Hyuk Choi, Cheonhong Kim, Richard Han Soo Cho
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Patent number: 11244996Abstract: A device such as a micro-OLED includes a display element having a display active area disposed over a silicon backplane and a display driver integrated circuit (DDIC) electrically coupled to the display element through at least one contact that extends through the silicon backplane. Through silicon via (TSV) technology may be used to form the contacts. A chip-on-flex architecture may be used to orient and attach the DDIC to the silicon backplane.Type: GrantFiled: April 27, 2020Date of Patent: February 8, 2022Assignee: Facebook Technologies, LLCInventors: Min Hyuk Choi, Cheonhong Kim, Richard Han Soo Cho
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Patent number: 11233986Abstract: An optical profiling system characterizes distortion of a head-mounted display (HMD) under test. The optical profiling system includes a camera assembly and a controller. The controller provides presenting instructions that cause the HMD under test to present test patterns and also provides imaging instructions that cause the camera assembly to capture images of the test patterns presented by the HMD under test. The camera assembly includes one or more characterization cameras. A characterization camera is configured to mimic movement of a human eye and is positioned in an eye box region of the HMD under test. Using the images captured by the camera assembly, the controller measures distortion of the HMD under test. The controller may generate a report charactering the HMD under test based on the measured distortion.Type: GrantFiled: March 14, 2019Date of Patent: January 25, 2022Assignee: Facebook Technologies, LLCInventors: Youngshik Yoon, Richard Han Soo Cho
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Publication number: 20210335896Abstract: A device such as a micro-OLED includes a display element having a display active area disposed over a silicon backplane and a display driver integrated circuit (DDIC) electrically coupled to the display element through at least one contact that extends through the silicon backplane. Through silicon via (TSV) technology may be used to form the contacts. A chip-on-flex architecture may be used to orient and attach the DDIC to the silicon backplane.Type: ApplicationFiled: April 27, 2020Publication date: October 28, 2021Inventors: Min Hyuk Choi, Cheonhong Kim, Richard Han Soo Cho
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Patent number: 10935830Abstract: A display system may include 1) a plurality of electronic components, 2) an LCD screen that is heatable at a base heating rate by operation of the LCD screen and one or more of the plurality of electronic components, and 3) a heating subsystem for heating the LCD screen at an accelerated heating rate that is greater than the base heating rate to raise a temperature of the LCD screen above a threshold screen temperature. A head-mounted-display device may include 1) a display housing, 2) a plurality of electronic components disposed within the display housing, 3) an LCD screen disposed within the display housing, and 4) a heating subsystem for heating the LCD screen at an accelerated heating rate. Various other apparatuses, systems, and methods are also disclosed.Type: GrantFiled: November 14, 2017Date of Patent: March 2, 2021Assignee: Facebook Technologies, LLCInventors: Richard Han Soo Cho, Cheonhong Kim, Dong Chen, Nirav Rajendra Patel
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Patent number: 10859838Abstract: A head-mounted display (HMD) includes a dichroic element, an eye tracking system, a controller, and an external focus camera. The dichroic element is transmissive to the light in a first optical band (e.g., visible light) but reflective to light in a second optical band (e.g., IR light). The eye tracking system includes a source assembly and a tracking camera. The source assembly projects light in the second optical band into an eyebox of the HMD. The tracking camera captures images of at least a portion of a user's eye in the eyebox. The controller of the HMD determines a gaze direction of the user based on the captured images. An orientation of the external focus camera corresponds to the gaze direction. The external focus camera captures image data of a portion of a local area surrounding the HMD at the orientation.Type: GrantFiled: September 20, 2019Date of Patent: December 8, 2020Assignee: Facebook Technologies, LLCInventors: Youngshik Yoon, Richard Han Soo Cho
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Publication number: 20200333596Abstract: A head-mounted display device includes a first reflective polarizer having a first optical surface and a second optical surface that is opposite to the first optical surface. The first optical surface of the first reflective polarizer is curved, and the first reflective polarizer is configured to reflect light having a first polarization. The head-mounted display device also includes a first electronic display configured to project toward the first reflective polarizer a light pattern. At least a portion of the light pattern is reflected by the first reflective polarizer. Also disclosed is a method, which includes directing a light pattern from the first electronic display toward the first reflective polarizer and reflecting at least a portion of the light pattern toward an eye of a user.Type: ApplicationFiled: July 1, 2020Publication date: October 22, 2020Inventors: Youngshik YOON, Richard Han-Soo CHO
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Patent number: 10761314Abstract: The disclosed apparatus may include a planar substrate including a first dimension, a second dimension perpendicular to the first dimension, and a thickness perpendicular to a plane defined by the first dimension and the second dimension. The planar substrate may include material that is transparent to at least one wavelength band of visible light and at least one wavelength band of infrared light. The apparatus may also include a plurality of reflective segments embedded in the planar substrate and distributed along the plane. The face of each reflective segment may be oblique to the plane. In addition, the reflective segments may be transparent to the wavelength band of visible light and at least partially reflective to the wavelength band of infrared light. Various other systems and methods are also disclosed.Type: GrantFiled: December 5, 2017Date of Patent: September 1, 2020Assignee: Facebook, Inc.Inventors: Evan M. Richards, Richard Han Soo Cho
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Patent number: 10739586Abstract: A head-mounted display device includes a first reflective polarizer having a first optical surface and a second optical surface that is opposite to the first optical surface. The first optical surface of the first reflective polarizer is curved, and the first reflective polarizer is configured to reflect light having a first polarization. The head-mounted display device also includes a first electronic display configured to project toward the first reflective polarizer a light pattern. At least a portion of the light pattern is reflected by the first reflective polarizer. Also disclosed is a method, which includes directing a light pattern from the first electronic display toward the first reflective polarizer and reflecting at least a portion of the light pattern toward an eye of a user.Type: GrantFiled: August 7, 2017Date of Patent: August 11, 2020Assignee: Facebook Technologies, LLCInventors: Youngshik Yoon, Richard Han-Soo Cho
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Patent number: 10705340Abstract: A lens assembly and a method of making the assembly are described. The lens assembly includes a first lens and a second lens slidably coupled with the first lens. The second lens includes a silicone material and has a Fresnel pattern surface. Also described is a display device including the lens assembly and an array of light emitting devices coupled with the lens assembly for outputting light through the lens assembly.Type: GrantFiled: February 14, 2017Date of Patent: July 7, 2020Inventors: Youngshik Yoon, Richard Han Soo Cho
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Patent number: 10598935Abstract: A method for making a hybrid lens includes providing, in a mold having a first Fresnel pattern, (i) a first lens and (ii) a silicone material comprising silicone and curing the silicone material in the mold to form a hybrid Fresnel lens. The cured silicone material is mechanically coupled with the first lens; and the cured silicone material has a second Fresnel pattern that corresponds to the first Fresnel pattern. A hybrid lens made by this method is also described. A hybrid lens includes a first lens mechanically coupled with a cured silicone material. The cured silicone material has a Fresnel pattern on a surface that faces away from the first lens.Type: GrantFiled: February 14, 2017Date of Patent: March 24, 2020Assignee: Facebook Technologies, LLCInventors: Youngshik Yoon, Richard Han Soo Cho
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Patent number: 10466484Abstract: A head-mounted display (HMD) includes a dichroic element, an eye tracking system, a controller, and an external focus camera. The dichroic element is transmissive to the light in a first optical band (e.g., visible light) but reflective to light in a second optical band (e.g., IR light). The eye tracking system includes a source assembly and a tracking camera. The source assembly projects light in the second optical band into an eyebox of the HMD. The tracking camera captures images of at least a portion of a user's eye in the eyebox. The controller of the HMD determines a gaze direction of the user based on the captured images. An orientation of the external focus camera corresponds to the gaze direction. The external focus camera captures image data of a portion of a local area surrounding the HMD at the orientation.Type: GrantFiled: December 14, 2017Date of Patent: November 5, 2019Assignee: Facebook Technologies, LLCInventors: Youngshik Yoon, Richard Han Soo Cho
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Patent number: 10277893Abstract: An optical profiling system characterizes distortion of a head-mounted display (HMD) under test. The optical profiling system includes a camera assembly and a controller. The controller provides presenting instructions that cause the HMD under test to present test patterns and also provides imaging instructions that cause the camera assembly to captures images of the test patterns presented by the HMD under test. The camera assembly includes one or more characterization cameras. A characterization camera is configured to mimic movement of a human eye and is positioned in an eye box region of the HMD under test. Using the images captured by the camera assembly, the controller measures distortion of the HMD under test. The controller may generate a report charactering the HMD under test based on the measured distortion.Type: GrantFiled: June 22, 2017Date of Patent: April 30, 2019Assignee: Facebook Technologies, LLCInventors: Youngshik Yoon, Richard Han Soo Cho
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Publication number: 20180231777Abstract: A method for making a hybrid lens includes providing, in a mold having a first Fresnel pattern, (i) a first lens and (ii) a silicone material comprising silicone and curing the silicone material in the mold to form a hybrid Fresnel lens. The cured silicone material is mechanically coupled with the first lens; and the cured silicone material has a second Fresnel pattern that corresponds to the first Fresnel pattern. A hybrid lens made by this method is also described. A hybrid lens includes a first lens mechanically coupled with a cured silicone material. The cured silicone material has a Fresnel pattern on a surface that faces away from the first lens.Type: ApplicationFiled: February 14, 2017Publication date: August 16, 2018Inventors: Youngshik Yoon, Richard Han Soo Cho
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Publication number: 20180231778Abstract: A lens assembly and a method of making the assembly are described. The lens assembly includes a first lens and a second lens slidably coupled with the first lens. The second lens includes a silicone material and has a Fresnel pattern surface. Also described is a display device including the lens assembly and an array of light emitting devices coupled with the lens assembly for outputting light through the lens assembly.Type: ApplicationFiled: February 14, 2017Publication date: August 16, 2018Inventors: Youngshik Yoon, Richard Han Soo Cho
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Patent number: 10036892Abstract: A method of making an optical assembly includes obtaining a first optical element having a first optical surface and a second optical surface that is opposite to the first optical surface, and a second optical element having a third optical surface and a fourth optical surface that is opposite to the third optical surface. The second optical element is distinct and separate from the first optical element. The method also includes obtaining an enclosure configured to enclose the first optical element and the second optical element. The method further includes providing one or more fillers in the enclosure so that the one or more fillers are in contact with the second optical surface and the third optical surface, thereby making the optical assembly. Also disclosed are an optical assembly made by the method and an optical imaging device including the optical assembly.Type: GrantFiled: April 20, 2017Date of Patent: July 31, 2018Assignee: OCULUS VR, LLCInventors: Youngshik Yoon, Richard Han Soo Cho
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Publication number: 20130223019Abstract: A flash drive package is described. The flash drive package comprises a flash drive, a holder, a recess formed in the holder for receiving the flash drive, a first attachment element having magnetic properties coupled to the flash drive, and a second attachment element having magnetic properties coupled to the holder. The first attachment element and the second attachment element are magnetically attracted to each other. The first attachment element and the second attachment element are configured to seat the flash drive in the recess of the holder.Type: ApplicationFiled: December 18, 2012Publication date: August 29, 2013Applicant: FlixChip Corp.Inventors: John STRISOWER, Hampton MAXWELL, David KUEHNE, Greg HELLAND, Richard Han Soo CHO