公开(公告)号：US20240429359A1

公开(公告)日：2024-12-26

申请号：US18701697

申请日：2022-10-05

Applicant: KOREA PHOTONICS TECHNOLOGY INSTITUTE

Inventor： Tak JEONG ,  Jun Beom PARK

IPC: H01L33/62 ,  H01L25/16 ,  H01L33/00

Abstract: The present invention relates to a micro LED package, a display having the same, and a method for manufacturing the display and, more specifically, to a micro LED package, a display having the same, and a method for manufacturing the display, in which a plurality of micro LEDs having different colors are packaged in a single pixel unit or a plurality of pixel units to facilitate connection to a driving connection electrode unit of the display. In the micro LED package and the display having the same according to the present invention, even if the size of the micro LED chips becomes small, the driving connection electrode unit of the display may be easily connected to the display driving connection electrode unit without rearranging or redesigning the driving connection electrode unit of the display, thereby making it possible to utilize the driving connection electrode unit of the existing display.

公开(公告)号：US20240196102A1

公开(公告)日：2024-06-13

申请号：US18482841

申请日：2023-10-06

Applicant: KOREA PHOTONICS TECHNOLOGY INSTITUTE

Inventor： An Jin PARK ,  Jeong Ho KIM ,  Byung Sup RHO

IPC: H04N23/76 ,  G06T3/40 ,  G06T7/11 ,  G06V10/60

CPC classification number: H04N23/76 ,  G06T3/4053 ,  G06T7/11 ,  G06V10/60 ,  G06T2207/20081

Abstract: An electronic device for image processing using an image conversion network comprises: a communication unit communicating with a user terminal to receive a nighttime image having an illuminance lower than a threshold level from the user terminal and a daytime image captured by a camera of the user terminal; and a control unit for inputting the nighttime image into an image conversion network to generate a daytime image having an illuminance equal to or higher than the threshold level, wherein the image conversion network includes: a pre-processing unit for generating an input image by reducing the size of the nighttime image at a predetermined ratio; a day/night conversion network for generating a first daytime image by converting an illuminance on the basis of the input image; and a resolution conversion network for generating a final image by converting a resolution on the basis of the first daytime image.

公开(公告)号：US20240168434A1

公开(公告)日：2024-05-23

申请号：US18508393

申请日：2023-11-14

Applicant: Korea Photonics Technology Institute

Inventor： Kwang Hoon LEE ,  Hoe Min KIM ,  Kyung Il JOO ,  Min Kyu PARK

IPC: G03H1/22 ,  G06V10/54 ,  G06V10/60

CPC classification number: G03H1/2294 ,  G06V10/54 ,  G06V10/60 ,  G03H2001/0224

Abstract: Disclosed is an apparatus for measuring texture characteristics of a holographic image that is reconstructed optically by a holographic display device. Provided is an apparatus for measuring texture characteristics of a holographic image, which measures texture characteristics of a holographic image that is reconstructed optically by a holographic display device.

公开(公告)号：US20240168270A1

公开(公告)日：2024-05-23

申请号：US18315947

申请日：2023-05-11

Applicant: Korea Photonics Technology Institute

Inventor： Seon Kyu YOON ,  Jin Su Lee ,  Sung Kuk CHUN

IPC: G02B21/04 ,  G02B21/36 ,  G03H1/00

CPC classification number: G02B21/04 ,  G02B21/365 ,  G03H1/0005 ,  G03H2001/005

Abstract: This disclosure relates to a digital holographic microscope which is robust to an external environment. According to an aspect of the present embodiment, there is provided an optical system for a digital holographic microscope, the optical system including a beam splitter which reflects a light radiated from a light source toward an object, or passes a light reflected from and traveling from the object; an objective lens focusing the light reflected by the beam splitter on the object; a transflective mirror which is located on the surface of the objective lens and is determined to be transparent or reflective depending on a polarization direction of a light incident to the transflective mirror; and a wave plate which converts the light passing through the beam splitter into a circularly polarized light.

公开(公告)号：US20240126206A1

公开(公告)日：2024-04-18

申请号：US18533186

申请日：2023-12-08

Applicant: Korea Photonics Technology Institute

Inventor： Seon Kyu YOON ,  Ha Mong SHIM ,  Jin Su LEE ,  Kwang Hoon LEE

IPC: G03H1/00 ,  G01B9/021 ,  G01B11/16 ,  G03H1/04 ,  G03H1/08

CPC classification number: G03H1/0005 ,  G01B9/021 ,  G01B11/164 ,  G03H1/0402 ,  G03H1/0443 ,  G03H1/0866 ,  G03H2001/005 ,  G03H2001/0415

Abstract: According to an embodiment, a holographic microscope comprises a light source, an optical system splitting light emitted from the light source into an object and a reflective mirror and inducing interference between light reflected by the object or transmitted through the object and light reflected by the reflective mirror, a first image sensor receiving the interference light and sensing interference information for the interference light, a second image sensor receiving the light reflected by the object or transmitted through the object and sensing information for the received light, and an image processor deriving a shape of the object based on the interference information sensed by the first image sensor and the information sensed by the second image sensor.

公开(公告)号：US11911106B2

公开(公告)日：2024-02-27

申请号：US16719971

申请日：2019-12-18

Applicant: KOREA PHOTONICS TECHNOLOGY INSTITUTE

Inventor： Kwanghoon Lee ,  Sungguk Chun ,  Seonkyu Yoon ,  Seon Man Kim

IPC: A61B3/117 ,  A61B3/10 ,  G02C7/02

CPC classification number: A61B3/1176 ,  A61B3/1015 ,  G02C7/02 ,  G02C2202/10

Abstract: An optical modulator is disposed in front of an eye along a direction in which light enters the eye to modulate the properties of light depending on the degree of opacity of the eye.

公开(公告)号：US20240016406A1

公开(公告)日：2024-01-18

申请号：US18253072

申请日：2021-02-16

Applicant: KOREA PHOTONICS TECHNOLOGY INSTITUTE

Inventor： Gi Dong SA ,  Ja Yeon KIM ,  Sa Ung KIM ,  Ji Ho JEONG ,  Eunbee KIM

IPC: A61B5/0537 ,  A61B5/00

CPC classification number: A61B5/0537 ,  A61B5/0077 ,  A61N5/0616

Abstract: The present invention provides a skin care diagnostic system characterized in that an LED light path is linked to a user terminal device having: a camera module for capturing an image of a skin surface; and a skin care service application generating control solution information of the LED light patch by analyzing the image captured by the camera module and an impedance measurement value received from the LED light patch. The LED light patch comprises: a BIA module for sensing the bioelectrical impedance of the skin surface; a BLE module for transmitting the impedance measurement value measured by the BIA module and receiving the control solution information of the LED light patch; a battery module comprising a thin-film battery; an LED module on which micro-LED devices are mounted in an array; and a control processor performing area-specific control, dimming control, wavelength control and user-selected care time control of the LED module in accordance with the received control solution information.

公开(公告)号：US20230401845A1

公开(公告)日：2023-12-14

申请号：US18235388

申请日：2023-08-18

Applicant: KOREA PHOTONICS TECHNOLOGY INSTITUTE

Inventor： Seon Hoon KIM ,  Doo Gun KIM ,  Young Ho SONG ,  Seung Heon HAN ,  Ju Hyeon CHOI ,  Jeong Hwan IN

IPC: G06V20/17 ,  G05D1/00 ,  G05D1/10 ,  G06V10/764 ,  G06V10/774 ,  G06V20/10 ,  G06V20/68

CPC classification number: G06V20/17 ,  G05D1/0094 ,  G05D1/101 ,  G06V10/764 ,  G06V10/774 ,  G06V20/188 ,  G06V20/68 ,  B64U10/13

Abstract: A fruit quantity measurement system includes an unmanned aerial vehicle configured to receive GPS information about a fruit tree region of a predetermined area and an RF signal transmitted from an RF transmitter installed for each fruit tree and provide fruit tree images captured using at least one image sensor while flying based on a predetermined flight plan over the fruit tree region, and a monitoring server configured to be connected to the unmanned aerial vehicle through a communication network to receive GPS information and an RF signal from the unmanned aerial vehicle, match and store location data for each fruit tree, analyze the fruit tree image, measure the number of fruits for each fruit tree, store fruit counting information, and provide the stored location data or fruit counting information for each fruit tree according to a request from a user terminal authorized in advance.

公开(公告)号：US11765524B1

公开(公告)日：2023-09-19

申请号：US18196047

申请日：2023-05-11

Applicant: Korea Photonics Technology Institute

Inventor： Seon Man Kim ,  Kwang Hoon Lee

IPC: H04R25/00 ,  H04S3/00

CPC classification number: H04R25/505 ,  H04R25/604 ,  H04R25/609 ,  H04S3/008 ,  H04R2225/41 ,  H04S2400/01

Abstract: A hearing aid with the variable number of channels includes: a microphone that receives a sound signal; an AD converter that converts the sound signal input from the microphone into a digital signal and outputs the converted digital signal; a controller that determines a filter bank channel for processing the digital signal output from the AD converter; a buffer unit that delays the digital signal based on the determined filter bank channel; a signal processor that includes at least one filter bank channel, synthesizes the digital signal using the determined filter bank channel and outputs the synthesized digital signal; a DA converter that converts the digital signal into the sound signal and outputs the converted sound signal; and a speaker that outputs the sound signal output from the DA converter, in which the controller determines the filter bank channel for processing the digital signal based on a preset condition.

公开(公告)号：US20230170467A1

公开(公告)日：2023-06-01

申请号：US17883650

申请日：2022-08-09

Applicant: KOREA PHOTONICS TECHNOLOGY INSTITUTE

Inventor： Myung Woo SON ,  Yong Hyun KIM

IPC: H01M4/36 ,  H01M4/04 ,  H01M4/38 ,  H01M4/583 ,  H01M10/0525

CPC classification number: H01M4/366 ,  H01M4/0428 ,  H01M4/386 ,  H01M4/583 ,  H01M10/0525 ,  H01M2004/027

Abstract: According to an embodiment, an anode active material included in an anode material of a battery comprises a carbon material and a silicon structure attached to the carbon material. The silicon structure includes a silicon nanoparticle, a metal thin film formed on a surface of the silicon nanoparticle, and graphene coated on a surface of the metal thin film.