Patents by Inventor Kwang-Han Lee

Kwang-Han Lee 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: 20240138241
    Abstract: A display device includes a light emitting sub-pixel disposed in a display area, a light receiving pixel disposed in one of the display area or a non-display area, and a touch sensing layer including a sensing conductive layer overlapping with the light receiving pixel.
    Type: Application
    Filed: August 2, 2023
    Publication date: April 25, 2024
    Inventors: Jung Woo PARK, Kwang Soo BAE, Byung Han YOO, Dae Young LEE, Hyun Dae LEE
  • Patent number: 11955397
    Abstract: A semiconductor structure is provided. The semiconductor structure includes a substrate, a channel layer, a barrier layer, a compound semiconductor layer, a gate electrode, and a stack of dielectric layers. The channel layer is disposed on the substrate. The barrier layer is disposed on the channel layer. The compound semiconductor layer is disposed on the barrier layer. The gate electrode is disposed on the compound semiconductor layer. The stack of dielectric layers is disposed on the gate electrode. The stack of dielectric layers includes layers having different etching rates.
    Type: Grant
    Filed: November 9, 2020
    Date of Patent: April 9, 2024
    Assignee: Vanguard International Semiconductor Corporation
    Inventors: Shin-Cheng Lin, Cheng-Wei Chou, Ting-En Hsieh, Yi-Han Huang, Kwang-Ming Lin, Yung-Fong Lin, Cheng-Tao Chou, Chi-Fu Lee, Chia-Lin Chen, Shu-Wen Chang
  • Publication number: 20240095484
    Abstract: Proposed is a dual band RFID tag including a first rectifier configured to receive and rectify a first RF signal modulated at a first frequency, a first regulator configured to regulate an output voltage of the first rectifier, a second rectifier configured to receive and rectify a second RF signal modulated at a second frequency, a second regulator configured to regulate an output voltage of the second rectifier, a voltage distributor connected to a first node and a ground in a state of being positioned therebetween, the output terminal of the first rectifier and the output terminal of the second rectifier being both connected to the first node, a multiplexer configured to output any one of an analog detection signal output from a sensor and an output signal of the voltage distributor, in response to a first selection signal or a second selection signal, and an analog-to-digital converter configured to receive as an operating voltage a voltage of a second node to which an output terminal of the first regulat
    Type: Application
    Filed: April 26, 2023
    Publication date: March 21, 2024
    Inventors: Sung Wan KIM, Pyeong Han LEE, Kwang Beom PARK, Sung Hun CHUN, Chang Ho RYU
  • Publication number: 20180174013
    Abstract: A smart card including a fingerprint detection device, the smart card including: a central processing unit; a microcontroller unit selectively connected to the central processing unit to perform fingerprint authentication on the basis of a fingerprint sensing signal received from the fingerprint detection device; and an auxiliary chip connected to the central processing unit to be activated if a result of the fingerprint authentication is successful.
    Type: Application
    Filed: May 26, 2016
    Publication date: June 21, 2018
    Inventor: Kwang Han LEE
  • Publication number: 20080218769
    Abstract: The present invention relates to an optical pointing device for mobile terminals, which can improve assembly efficiency and stability. An optical pointing device according to the present invention includes a holder having an accommodation opening therein. Light emitting means is installed in the accommodation opening of the holder. A condensing element includes a pair of prisms installed in the accommodation opening of the holder and integrated into a single structure so as to condense light emitted from the light emitting means, and a condensing lens disposed between the paired prisms. An image sensor captures light provided through the condensing element and calculates the captured light as displacement values. The condensing element includes a lens holder coupled to the condensing lens so as to maintain stable installation of the condensing lens between the paired prisms.
    Type: Application
    Filed: September 17, 2007
    Publication date: September 11, 2008
    Applicant: CRUCIALTEC CO., LTD.
    Inventors: Keon Joon Ahn, Jae Hun Bae, Jae Dong Kim, Jung Hyun Yoon, Kwang Han Lee
  • Publication number: 20070281447
    Abstract: In a method of unloading and/or loading a wafer in a semiconductor device manufacturing apparatus, pumping and/or purge operations are performed in a process chamber while the wafer is separated from a susceptor by a desired distance using a plurality of lift pins.
    Type: Application
    Filed: December 13, 2006
    Publication date: December 6, 2007
    Inventors: Hyung-Goo Lee, Ki-Tae Ki, Eui-Hwan Kim, Young-Il Shin, Kwang-Han Lee, Chang-Sik Jun, Kyoung-Hwan Chin, Byung-Chul Choi