Patents by Inventor Chul-joon HEO

Chul-joon HEO 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: 20220392972
    Abstract: A sensor-embedded display panel includes a substrate, a light emitting element on the substrate and including a light emitting layer, and a photosensor on the substrate and including a photoelectric conversion layer in parallel with the light emitting layer along an in-plane direction of the substrate, wherein the light emitting element and the photosensor each include a separate portion of a first common auxiliary layer that is a single piece of material that extends continuously on the light emitting layer and the photoelectric conversion layer, and a separate portion of a common electrode on the first common auxiliary layer and is configured to apply a common voltage to both the light emitting element and the photosensor, and the photoelectric conversion layer includes a sequential stack from the first common auxiliary layer of a first n-type semiconductor layer, a second n-type semiconductor layer, and a p-type semiconductor layer.
    Type: Application
    Filed: March 16, 2022
    Publication date: December 8, 2022
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Chul Joon HEO, Kyung Bae PARK, Sung Young YUN, Hyeongju KIM, Feifei FANG, Hwijoung SEO, Juhyung LIM, Taejin CHOI
  • Publication number: 20220367570
    Abstract: A sensor-embedded display panel includes a substrate, a light emitting element on the substrate and including a light emitting layer, and a light absorption sensor on the substrate and including a light absorbing layer arranged in parallel with the light emitting layer along an in-plane direction of the substrate. The light absorbing layer is configured to absorb light of a red wavelength spectrum, a green wavelength spectrum, a blue wavelength spectrum, or any combination thereof. The light emitting layer includes a first organic material and the light absorbing layer includes a second organic material. A difference between respective sublimation temperatures of the first and second organic materials is less than or equal to about 150° C., wherein each sublimation temperature is a temperature at which a weight reduction of 10% relative to the initial weight occurs during thermogravimetric analysis under an ambient pressure of about 10 Pa or less.
    Type: Application
    Filed: April 21, 2022
    Publication date: November 17, 2022
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Hyeongju KIM, Jisoo SHIN, Sung Young YUN, Kyung Bae PARK, Jeong Il PARK, Taejin CHOI, Chul Joon HEO
  • Patent number: 11476423
    Abstract: A compound of Chemical Formula 1, and an organic photoelectric device, an image sensor, and an electronic device including the same are disclosed: In Chemical Formula 1, each substituent is the same as described in the detailed description.
    Type: Grant
    Filed: January 29, 2021
    Date of Patent: October 18, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Norihito Ishii, Katsunori Shibata, Takkyun Ro, Ohkyu Kwon, Sang Mo Kim, Kyung Bae Park, Sung Young Yun, Dong-Seok Leem, Youn Hee Lim, Yong Wan Jin, Yeong Suk Choi, Jong Won Choi, Taejin Choi, Hyesung Choi, Chul Joon Heo
  • Patent number: 11466001
    Abstract: A compound of Chemical Formula 1, and an organic photoelectric device, an image sensor, and an electronic device including the same are disclosed: In Chemical Formula 1, each substituent is the same as defined in the detailed description.
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: October 11, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yeong Suk Choi, Ji Soo Shin, Chul Baik, Sung Young Yun, Taejin Choi, Hye Rim Hong, Kyung Bae Park, Gae Hwang Lee, Chul Joon Heo
  • Patent number: 11456336
    Abstract: Disclosed are an organic photoelectric device including a first electrode and a second electrode facing each other and a photoelectric conversion layer disposed between the first electrode and the second electrode and selectively absorbing light in a green wavelength region, wherein the photoelectric conversion layer includes a first and second photoelectric conversion materials, a light-absorption full width at half maximum (FWHM) in a green wavelength region of the first photoelectric conversion material is narrower than the light-absorption FWHM in a green wavelength region of the second photoelectric conversion material, and the first and second photoelectric conversion materials satisfy Relationship Equation 1, and an image sensor and an electronic device including the same. Tm2(° C.)?Ts2(10)(° C.)?Tm1(° C.)?Ts1(10)(° C.
    Type: Grant
    Filed: September 16, 2020
    Date of Patent: September 27, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kiyohiko Tsutsumi, Kyung Bae Park, Takkyun Ro, Chul Joon Heo, Yong Wan Jin
  • Publication number: 20220261584
    Abstract: A sensor-embedded display panel includes a substrate, first, second, and third light emitting elements on the substrate, the first, second, and third light emitting elements including separate, respective light emitting layers, and a light absorbing layer on the substrate, the light absorbing layer being in parallel with the light emitting layer along the surface direction of the substrate, wherein the first, second, and third light emitting elements and the light absorption sensor include a first common auxiliary layer that is continuously disposed on the light emitting layers and the light absorbing layer, and a common electrode on the first common auxiliary layer and configured to apply a common voltage to the first, second, and third light emitting elements and the light absorption sensor, and the light absorption sensor includes an n-type semiconductor layer between the light absorbing layer and the first common auxiliary layer and including an n-type semiconductor.
    Type: Application
    Filed: October 28, 2021
    Publication date: August 18, 2022
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Chul Joon HEO, Kyung Bae PARK, Sung Young YUN, Taejin CHOI, Feifei FANG, Myungsun SIM, Sung Hun LEE
  • Patent number: 11411192
    Abstract: A device includes a first electrode and a second electrode, an active layer between the first electrode and the second electrode and a plurality of auxiliary layers between the first electrode and the active layer. The auxiliary layers include first and second auxiliary layers, the first auxiliary layer proximate to the active layer, the second auxiliary layer proximate to the second electrode. An energy level of the active layer, an energy level of the first auxiliary layer, an energy level of the second auxiliary layer, and a work function of the first electrode become deeper sequentially or shallower sequentially.
    Type: Grant
    Filed: August 4, 2020
    Date of Patent: August 9, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyung Bae Park, Naotoshi Suganuma, Chul Joon Heo, Sung Jun Park, Sung Young Yun
  • Patent number: 11401289
    Abstract: A compound of Chemical Formula 1, and an organic photoelectric device, an image sensor, and an electronic device including the same are disclosed: In Chemical Formula 1, the definition of each substituent is as described in the detailed description.
    Type: Grant
    Filed: June 24, 2020
    Date of Patent: August 2, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chul Baik, Taejin Choi, Ji Soo Shin, Sung Young Yun, Kyung Bae Park, Gae Hwang Lee, Yeong Suk Choi, Chul Joon Heo
  • Publication number: 20220169633
    Abstract: A squarylium compound has high transmittance in a visible wavelength spectrum of light and is configured to selectively absorb light in an infrared/near infrared wavelength spectrum of light.
    Type: Application
    Filed: February 17, 2022
    Publication date: June 2, 2022
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Moon Gyu HAN, Kyung Bae PARK, Dongseon LEE, Yong Wan JIN, Chul Joon HEO
  • Publication number: 20220157902
    Abstract: An OLED panel for implementing biometric recognition influencing an aperture ratio of an OLED light emitter i includes a substrate, an OLED on the substrate, and a driver on the substrate. The OLED may emit visible light, and the driver may drive the OLED. The driver may include a visible light sensor configured to detect the visible light emitted by the OLED, and the visible light sensor may overlap the OLED in a direction that is substantially perpendicular to an upper surface of the substrate. The OLED panel may include a near infrared ray OLED that is configured to emit near infrared rays, and the driver may include a near infrared ray sensor configured to detect near infrared rays emitted by the near infrared ray OLED. The near infrared ray sensor may overlap the OLED in a direction that is substantially perpendicular to an upper surface of the substrate.
    Type: Application
    Filed: January 28, 2022
    Publication date: May 19, 2022
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Kyung Bae PARK, Kwang Hee LEE, Chul Joon HEO
  • Patent number: 11317068
    Abstract: In a signal processing apparatus, a photoelectric conversion member includes a first photoelectric conversion layer configured to photoelectrically convert at least one of blue light or red light, and a second photoelectric conversion layer on an incident light surface of the first photoelectric conversion layer and configured to photoelectrically convert green light. An interpolation circuit is configured to interpolate at least one of a blue light signal or a red light signal obtained by photoelectric conversion in the first photoelectric conversion layer L1, using a green light signal obtained by photoelectric conversion in the second photoelectric conversion layer L2. An absorption correction circuit is configured to perform absorption correction on the green light signal, using at least one of the blue light signal or the red light signal that are interpolated by the interpolation circuit.
    Type: Grant
    Filed: November 6, 2019
    Date of Patent: April 26, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Mineki Taoka, Takashi Okazaki, Chul Joon Heo, Gae Hwang Lee, Kyung Bae Park, Yong Wan Jin
  • Patent number: 11281320
    Abstract: An electronic device may include an edge touch screen including a main display region and an edge display region extending from the main display region each including one or more of red pixels, near infrared ray pixels, and sensor pixels for detecting light with different wavelengths; and a controller configured to, drive the edge touch screen in response to a touch input for the edge display region being maintained for a set time by instructing at least one selected red pixel of the red pixels and at least one selected near infrared ray pixel of the near infrared ray pixels corresponding to a position of the touch input to emit light, and measure biometrics based on light amounts of light of different wavelengths received from at least one selected sensor pixel of the sensor pixels corresponding to the position of the touch input.
    Type: Grant
    Filed: June 19, 2020
    Date of Patent: March 22, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chul Joon Heo, Kyung Bae Park, Yong Wan Jin
  • Publication number: 20220075981
    Abstract: An electronic device includes a display panel and a biometric sensor. The display panel includes a light emitter. The biometric sensor is stacked with the display panel and is configured to detect light emitted from the display panel and reflected by a recognition target that is external to the electronic device. The biometric sensor includes a silicon substrate and a photoelectric conversion element on the silicon substrate. The photoelectric conversion element includes a photoelectric conversion layer having wavelength selectivity.
    Type: Application
    Filed: September 1, 2021
    Publication date: March 10, 2022
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Kyung Bae PARK, Sung Han KIM, Sung Young YUN, Seon-Jeong LIM, Chul Joon HEO
  • Patent number: 11261172
    Abstract: A squarylium compound has high transmittance in a visible wavelength spectrum of light and is configured to selectively absorb light in an infrared/near infrared wavelength spectrum of light.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: March 1, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Moon Gyu Han, Kyung Bae Park, Dongseon Lee, Yong Wan Jin, Chul Joon Heo
  • Publication number: 20220036028
    Abstract: A fingerprint sensor may include first and second electrodes, a light absorption layer isolated from direct contact with the first and second electrodes, and an insulation layer between the first electrode and the light absorption layer and further between the second electrode and the light absorption layer. A reflective layer may be between the light absorption layer and the first electrode. The insulation layer may include a first insulation layer between the first electrode and the light absorption layer, and a second insulation layer between the second electrode and the light absorption layer. A fingerprint sensor array including a plurality of fingerprint sensors may at least partially expose a plurality of sub-pixels of a display panel on which the fingerprint sensor array is located.
    Type: Application
    Filed: October 18, 2021
    Publication date: February 3, 2022
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Gae Hwang Lee, Kyung Bae Park, Sung Jun Park, Sung Young Yun, Yong Wan Jin, Chul Joon Heo
  • Patent number: 11239286
    Abstract: An OLED panel for implementing biometric recognition influencing an aperture ratio of an OLED light emitter i includes a substrate, an OLED on the substrate, and a driver on the substrate. The OLED may emit visible light, and the driver may drive the OLED. The driver may include a visible light sensor configured to detect the visible light emitted by the OLED, and the visible light sensor may overlap the OLED in a direction that is substantially perpendicular to an upper surface of the substrate. The OLED panel may include a near infrared ray OLED that is configured to emit near infrared rays, and the driver may include a near infrared ray sensor configured to detect near infrared rays emitted by the near infrared ray OLED. The near infrared ray sensor may overlap the OLED in a direction that is substantially perpendicular to an upper surface of the substrate.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: February 1, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyung Bae Park, Kwang Hee Lee, Chul Joon Heo
  • Publication number: 20220020794
    Abstract: An image sensor may include a substrate, and a plurality of wavelength separation filters on the substrate and arranged along an in-plane direction of the substrate. The wavelength separation filters include a first wavelength separation filter configured to selectively transmit incident light in the first wavelength spectrum, and photoelectrically convert the incident light in at least one of the second wavelength spectrum or the third wavelength spectrum, a second wavelength separation filter configured to selectively transmit the incident light in the second wavelength spectrum and photoelectrically convert the incident light in at least one of the first wavelength spectrum or the third wavelength spectrum, and a third wavelength separation filter configured to selectively transmit the incident light in the third wavelength spectrum and photoelectrically convert the incident light in at least one of the first wavelength spectrum or the second wavelength spectrum.
    Type: Application
    Filed: June 2, 2021
    Publication date: January 20, 2022
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Chul Joon HEO, Kyung Bae PARK, Sung Young YUN, Seon-Jeong LIM, Feifei FANG, Taejin CHOI
  • Publication number: 20210351314
    Abstract: A sensor includes a first electrode and a second electrode, and a photo-active layer between the first electrode and the second electrode. The photo-active layer includes a light absorbing semiconductor configured to form a Schottky junction with the first electrode. The photo-active layer has a charge carrier trapping site configured to capture photo-generated charge carriers generated based on the light absorbing semiconductor absorbing incident light that enters at least the photo-active layer at a position adjacent to the first electrode. The sensor is configured to have an external quantum efficiency (EQE) that is adjusted based on a voltage bias being applied between the first electrode and the second electrode.
    Type: Application
    Filed: May 3, 2021
    Publication date: November 11, 2021
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Kyung Bae PARK, Sung Jun PARK, Feifei FANG, Sung Young YUN, Seon-Jeong LIM, Chul Joon HEO
  • Patent number: 11151349
    Abstract: A fingerprint sensor may include first and second electrodes, a light absorption layer isolated from direct contact with the first and second electrodes, and an insulation layer between the first electrode and the light absorption layer and further between the second electrode and the light absorption layer. A reflective layer may be between the light absorption layer and the first electrode. The insulation layer may include a first insulation layer between the first electrode and the light absorption layer, and a second insulation layer between the second electrode and the light absorption layer. A fingerprint sensor array including a plurality of fingerprint sensors may at least partially expose a plurality of sub-pixels of a display panel on which the fingerprint sensor array is located.
    Type: Grant
    Filed: December 30, 2019
    Date of Patent: October 19, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Gae Hwang Lee, Kyung Bae Park, Sung Jun Park, Sung Young Yun, Yong Wan Jin, Chul Joon Heo
  • Publication number: 20210273180
    Abstract: Disclosed are a photoelectric conversion device and an organic sensor and an electronic device including the same. The photoelectric conversion device includes a first and a second electrode, a photoelectric conversion layer between the first and the second electrode and configured to absorb light in at least one portion of a wavelength spectrum and to convert the absorbed light into an electric signal, and a buffer layer between the second electrode and the photoelectric conversion layer and including a mixture of at least two materials. The mixture includes a first and a second material. The first material has an energy bandgap of at least about 3.2 eV and a HOMO energy level of at least about 6.0 eV. The second material has an energy bandgap of less than or equal to about 2.8 eV and a HOMO energy level of at least about 6.0 eV.
    Type: Application
    Filed: January 25, 2021
    Publication date: September 2, 2021
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Kyung Bae PARK, Sung Jun PARK, Feifei FANG, Sung Young YUN, Seon-Jeong LIM, Youn Hee LIM, Chul Joon HEO