Patents by Inventor Jun Ho Choi

Jun Ho Choi 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: 20130147851
    Abstract: A display apparatus for controlling optical transmittance thereof, is provided. The display apparatus includes: a display panel including a pixel having a first region for emitting light via at least one surface thereof and a second region disposed adjacent to the first region and for transmitting external light therethrough; a signal generator for generating a signal including image words representing image data corresponding to the light emitted from the first region, wherein one or more transmittance bits of the signal represent transmittance of the second region; and a transmittance control device for controlling transmittance of the second region based on the one or more transmittance bits.
    Type: Application
    Filed: February 16, 2012
    Publication date: June 13, 2013
    Inventors: Sang-Hoon Yim, Jun-Ho Choi, Seong-Min Kim
  • Patent number: 8441567
    Abstract: A digital photographing apparatus and a method of controlling the digital photographing apparatus prevent a touch malfunction from occurring while holding the digital photographing apparatus by having a touch protection area in the digital photographing apparatus. The digital photographing apparatus includes a large-sized touch screen on one surface thereof, wherein the touch screen includes: a touch area which inputs a touch from a user and executes icons corresponding to the touch; and a touch protection area which is not activated by the touch when the touch from the user is input on the touch screen.
    Type: Grant
    Filed: July 19, 2010
    Date of Patent: May 14, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hye-jin Kim, Jun-ho Choi, Sung-ho Eun, Na-ri Choi
  • Patent number: 8409771
    Abstract: The present invention relates to a laser pattern mask, and a method for fabricating the same, which can prevent a laser pattern mask from being damaged by coating a protective film on a surface of a laser pattern mask for patterning an entire layer on a mother substrate at a time by laser ablation. The laser pattern mask includes a base substrate, a laser shielding pattern formed of a non-transparent metal on the base substrate to define laser pass through regions, and a protective film formed on an entire surface of the base substrate including the laser shielding pattern.
    Type: Grant
    Filed: December 20, 2010
    Date of Patent: April 2, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Sun-Ju Ku, Jun-Ho Choi
  • Patent number: 8399284
    Abstract: A thin film deposition apparatus, which has high external light transmittance and a cathode having a uniform thickness, is disclosed. In one embodiment, the thin film deposition apparatus includes a deposition source spaced apart from a center of the substrate and configured to emit a deposition material toward the substrate and a blocking member disposed on the substrate and configured to block at least part of the deposition material emitted from the deposition source, wherein an opening is defined on at least one side of the blocking member.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: March 19, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seong-Min Kim, Jae-Kook Ha, Jin-Koo Chung, Jun-Ho Choi
  • Patent number: 8366560
    Abstract: A coupling device has a flexible member that is vertically connected to a rotating shaft and of which the length can be varied in an inward and outward direction with respect to the rotating shaft, an elastic member that is connected to the flexible member and causes the flexible member to receive an elastic force in the outward direction with respect to the rotating shaft, and a cam member that is rotatably connected to the rotating shaft and delivers a rotating force of the rotating shaft to a rotating member. The cam member has a through-hole having an initial-position portion in which the flexible member is positioned at the initial stage and a displaced-position portion which has a smaller diameter than the initial-position portion and of which the diameter is constant about the rotating shaft, and an another through-hole having an initial-position portion in which the flexible member is positioned and a return-position portion of which the radius decreases from the initial-position portion.
    Type: Grant
    Filed: July 22, 2008
    Date of Patent: February 5, 2013
    Assignee: Korea Institute of Science and Technology
    Inventors: Woo Sub Lee, Sung Chul Kang, Mun Sang Kim, Jun Ho Choi, Chang Mook Chun
  • Publication number: 20120313099
    Abstract: The organic light emitting display device includes a substrate, a thin film transistor (TFT) formed on the substrate, a first insulating layer covering the TFT, a first electrode formed on the first insulating layer and electrically connected to the TFT, a second insulating layer formed on the first insulating layer to cover the first electrode and has an opening to expose a portion of the first electrode, an organic layer formed on a portion of the second insulating layer and the first electrode, a second electrode formed on the second insulating layer and the organic layer includes a first region and a second region, a capping layer formed on a first region of the second electrode and having first edges, and a third electrode formed on a second region of the second electrode and having second edges whose side surfaces contact side surfaces of the first edges.
    Type: Application
    Filed: December 12, 2011
    Publication date: December 13, 2012
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Jin-Koo Chung, Jun-Ho Choi, Seong-Min Kim
  • Patent number: 8330353
    Abstract: The present invention relates to an organic light emitting device including a substrate, an insulating layer disposed on the substrate, a first electrode disposed on the insulating layer, an organic light emitting member disposed on the first electrode, and a second electrode disposed on the organic light emitting member. The insulating layer includes a furrow corresponding to at least one edge of the first electrode, and at least a portion of the second electrode is disposed in the furrow.
    Type: Grant
    Filed: December 2, 2008
    Date of Patent: December 11, 2012
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jun-Ho Choi, Sung-Soo Lee, Chang-Mo Park, Seong-Min Kim
  • Publication number: 20120299472
    Abstract: An organic light emitting display apparatus includes a substrate and a sealing member that are separated from each other; a pixel electrode on the substrate; a pixel defining layer on the pixel electrode and exposing a portion of the pixel electrode; an intermediate layer including a light emitting layer on the exposed portion of the pixel electrode; a facing electrode on the pixel defining layer and the intermediate layer; and a reflection member on a surface of the sealing member facing the substrate and patterned to have an opening portion that exposes the pixel electrode, wherein the opening portion is formed such that a boundary portion of the opening portion is closer to a center of the intermediate layer than a boundary portion of the portion of the pixel electrode exposed by the pixel defining layer.
    Type: Application
    Filed: August 3, 2012
    Publication date: November 29, 2012
    Inventors: Jin-Koo Chung, Sang-Hoon Yim, Jun-Ho Choi, Seong-Min Kim, Seung-Wook Chang, Hye-Dong Kim, Mu-Hyun Kim
  • Publication number: 20120280215
    Abstract: An organic light-emitting display apparatus including: a substrate; a plurality of pixels on a first surface of the substrate, each pixel of the pixels having a first region in which visible rays are emitted and a second region through which external light penetrates, such that the plurality of pixels provide a plurality of first and second regions; a plurality of pixel circuit units in the first region of each pixel, each pixel circuit unit of the pixel circuit units including at least one thin film transistor (TFT); a plurality of first electrodes independently disposed in the first region of each pixel, each first electrode of the first electrodes being electrically connected to each pixel circuit unit; a second electrode facing the first electrodes, the second electrode being electrically connected throughout the pixels; and an intermediate layer including an organic emitting layer between the first electrodes and the second electrode.
    Type: Application
    Filed: October 7, 2011
    Publication date: November 8, 2012
    Inventors: Jun-Ho CHOI, Jin-Koo Chung, Gun-Shik Kim
  • Publication number: 20120274796
    Abstract: Embodiments of the invention provide a digital photographing apparatus including a user interface provider for providing a user interface including: a display region for displaying a live-view image or a reproduced image; a first region for providing at least one pre-set menu; and a second region for providing at least one user set menu set by a user.
    Type: Application
    Filed: November 14, 2011
    Publication date: November 1, 2012
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jun-ho Choi, Jin-ho Choi, Na-ri Choi
  • Publication number: 20120267611
    Abstract: Embodiments may disclose an organic light-emitting display device including a first substrate including a pixel area emitting light in a first direction, and a transmittance area that is adjacent to the pixel area and transmits external light; a second substrate facing the first substrate and encapsulating a pixel on the first substrate; an optical pattern array on the first substrate or the second substrate to correspond to the transmittance area, the optical pattern array being configured to transmit or block external light depending on the transmittance area according to a coded pattern; and a sensor array corresponding to the optical pattern array, the sensor array being arranged in a second direction that is opposite to the first direction in which the light is emitted, the second array receiving the external light passing through the optical pattern array.
    Type: Application
    Filed: September 22, 2011
    Publication date: October 25, 2012
    Inventors: Jin-Koo Chung, Sang-Hoon Yim, Chan-Young Park, Jun-Ho Choi, Seong-Min Kim
  • Patent number: 8274090
    Abstract: An organic light-emitting display device includes: a substrate; pixels on a first side of the substrate, each of the pixels comprising a first region for emitting light and a second region for transmitting external light; pixel circuits on the first regions of the pixels, each of the pixel circuits comprising at least one thin film transistor; an insulating layer covering the pixel circuits; first electrodes on the insulating layer, spaced from each other on the first regions, and electrically connected to the pixel circuits; a second electrode opposite the first electrodes and formed throughout the first and second regions of all the pixels; an organic layer between the first electrodes and the second electrode; a sealing member facing the first side of the substrate; and an anti-reflection layer located on at least one of a second side of the substrate or an outer side of the sealing member.
    Type: Grant
    Filed: July 6, 2011
    Date of Patent: September 25, 2012
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jun-Ho Choi, Jin-Koo Chung, Chan-Young Park, Sung-Min Kim, Young-Woo Song, Sung-Chul Kim, Jae-Heung Ha, Kyu-Hwan Hwang, Seok-Gyu Yoon, Jong-Hyuk Lee
  • Patent number: 8243169
    Abstract: Disclosed are an apparatus and method for improving digital image playback by switching among a plurality of displayed playback images according to a control signal generated from a user input. The apparatus includes a playback image generating unit (in an embodiment, a digital signal processor), which generates a playback image by using image data included in an image file. A display unit displays the playback image generated by the playback image processor. A detecting unit determines the duration of the control signal generated from the user input, and the playback image generating unit adjusts a specified speed of switching among a plurality of playback images according to the input of the control signal and the specified speed of switching playback images is adjusted according to the detected duration.
    Type: Grant
    Filed: June 22, 2009
    Date of Patent: August 14, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jun-ho Choi, Hye-jin Kim
  • Publication number: 20120162490
    Abstract: In an image capturing apparatus and a photographing method using the same, the image capturing apparatus comprises: a transparent display panel; and a camera facing a bottom surface of the transparent display panel for synchronizing a shutter time with a period when the transparent display panel displays a black image, and for capturing an image positioned in front of the transparent display panel, thereby capturing a clear image without interference between images due to light-leakage property.
    Type: Application
    Filed: May 6, 2011
    Publication date: June 28, 2012
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Jin-Koo Chung, Chan-Young Park, Jun-Ho Choi, Joo-Hyeon Lee, Seong-Min Kim, Sang-Moo Choi
  • Publication number: 20120153321
    Abstract: An OLED display is disclosed. The display includes a substrate main body where a plurality of pixel areas are formed. Each pixel area includes an opaque area and a transparent area, and the opaque area includes a display area that emits light. The display area and the transparent area are separated by a conductive line disposed therebetween.
    Type: Application
    Filed: May 4, 2011
    Publication date: June 21, 2012
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Jin-Koo Chung, Jun-Ho Choi, Joo-Hyeon Lee, Seong-Min Kim, Byoung-Hee Park
  • Patent number: 8178867
    Abstract: An organic light emitting display includes an insulating substrate having a first area, a second area, and a third area, an organic layer located in the second area, a pixel electrode located on the organic layer in the first area and the second area, and a partition wall including an opening exposing a portion of the pixel electrode. The organic light emitting display further includes an organic light emitting member located in the opening and a common electrode located on the organic light emitting member. The opening is disposed in the first area, and the third area includes a trench separating the second area from an adjacent second area.
    Type: Grant
    Filed: September 16, 2009
    Date of Patent: May 15, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jun-Ho Choi, Seong-Min Kim, Jin-Koo Chung, Jae-Kook Ha
  • Publication number: 20120104422
    Abstract: An organic light emitting display and a method of manufacturing the same. The organic light-emitting display is a transparent display where one can see through the display to view an image on the other side of the display. Each pixel of the display has a first region that includes an organic light emitting diode and a thin film transistor, and a larger second region that is transparent. The second region is made of either transparent layers or ultra thin layers so that light is not blocked. A second electrode of the display may include magnesium and may be produced by a selective deposition process, so that use of a fine metal mask may be avoided.
    Type: Application
    Filed: September 9, 2011
    Publication date: May 3, 2012
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Joo-Hyeon Lee, Byoung-Hee Park, Jin-Koo Chung, Jun-Ho Choi, Seong-Min Kim
  • Publication number: 20120080680
    Abstract: An organic light emitting display device includes a substrate, a plurality of unit pixels on the substrate, each unit pixel including a first region that emits light and a second region that transmits external light, thin film transistors (TFTs) disposed in the first region of each unit pixel, first electrodes disposed in the first region of each unit pixel, each first electrode being electrically connected to one of the TFTs, a second electrode facing the first electrodes, and commonly disposed in the unit pixels, and an organic layer interposed between the first electrodes and the second electrode, and including an emissive layer. With respect to two adjacent pixels of the plurality of unit pixels, the first region and the second region in one unit pixel are symmetrical with the first region and the second region in another adjacent unit pixel, and the second regions are connected to each other.
    Type: Application
    Filed: June 1, 2011
    Publication date: April 5, 2012
    Inventors: Jun-Ho Choi, Jin-Koo Chung, Seong-Min Kim
  • Publication number: 20120082828
    Abstract: The present invention relates to a laser pattern mask, and a method for fabricating the same, which can prevent a laser pattern mask from being damaged by coating a protective film on a surface of a laser pattern mask for patterning an entire layer on a mother substrate at a time by laser ablation. The laser pattern mask includes a base substrate, a laser shielding pattern formed of a non-transparent metal on the base substrate to define laser pass through regions, and a protective film formed on an entire surface of the base substrate including the laser shielding pattern.
    Type: Application
    Filed: December 20, 2010
    Publication date: April 5, 2012
    Inventors: Sun-Ju KU, Jun-Ho CHOI
  • Publication number: 20120049207
    Abstract: A thin film deposition apparatus, which has high external light transmittance and a cathode having a uniform thickness, is disclosed. In one embodiment, the thin film deposition apparatus includes a deposition source spaced apart from a center of the substrate and configured to emit a deposition material toward the substrate and a blocking member disposed on the substrate and configured to block at least part of the deposition material emitted from the deposition source, wherein an opening is defined on at least one side of the blocking member.
    Type: Application
    Filed: July 7, 2011
    Publication date: March 1, 2012
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Seong-Min Kim, Jae-Kook Ha, Jin-Koo Chung, Jun-Ho Choi