Patents by Inventor Hea-Chun Lee

Hea-Chun 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).

  • Patent number: 9495041
    Abstract: Touch-related information which cannot be acquired by the naked eye (dubbed here as sub-optical pattern information) has its corresponding sub-optical patterns respectively positioned within the aperture areas of respective domains such that the displayed image, as viewed from different viewing angles is not adversely affected by the embedded sub-optical patterns. One type of touch-related information which can be conveyed is that of touch location of a sub-optical pattern sensing pen positioned over one or more of the sub-optical patterns.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: November 15, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seung Soo Baek, Woong Kwon Kim, Sang Ho Kim, Jae-Jin Song, Sang Wook Lee, Hea Chun Lee, Young Goo Song, Nam-Heon Kim, Dae Cheol Kim, Sung Ryul Kim, Jung Suk Bang, Ki Hun Jeong
  • Publication number: 20160054857
    Abstract: Touch-related information which cannot be acquired by the naked eye (dubbed here as sub-optical pattern information) has its corresponding sub-optical patterns respectively positioned within the aperture areas of respective domains such that the displayed image, as viewed from different viewing angles is not adversely affected by the embedded sub-optical patterns. One type of touch-related information which can be conveyed is that of touch location of a sub-optical pattern sensing pen positioned over one or more of the sub-optical patterns.
    Type: Application
    Filed: October 26, 2015
    Publication date: February 25, 2016
    Inventors: Seung Soo BAEK, Woong Kwon KIM, Sang Ho KIM, Jae-Jin SONG, Sang Wook LEE, Hea Chun LEE, Young Goo SONG, Nam-Heon KIM, Dae Cheol KIM, Sung Ryul KIM, Jung Suk BANG, Ki Hun JEONG
  • Patent number: 9170449
    Abstract: Touch-related information which cannot be acquired by the naked eye (dubbed here as sub-optical pattern information) has its corresponding sub-optical patterns respectively positioned within the aperture areas of respective domains such that the displayed image, as viewed from different viewing angles is not adversely affected by the embedded sub-optical patterns. One type of touch-related information which can be conveyed is that of touch location of a sub-optical pattern sensing pen positioned over one or more of the sub-optical patterns.
    Type: Grant
    Filed: October 1, 2013
    Date of Patent: October 27, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seung Soo Baek, Woong Kwon Kim, Sang Ho Kim, Jae-Jin Song, Sang Wook Lee, Hea Chun Lee, Young Goo Song, Nam-Heon Kim, Dae Cheol Kim, Sung Ryul Kim, Jung Suk Bang, Ki Hun Jeong
  • Publication number: 20140211103
    Abstract: Touch-related information which cannot be acquired by the naked eye (dubbed here as sub-optical pattern information) has its corresponding sub-optical patterns respectively positioned within the aperture areas of respective domains such that the displayed image, as viewed from different viewing angles is not adversely affected by the embedded sub-optical patterns. One type of touch-related information which can be conveyed is that of touch location of a sub-optical pattern sensing pen positioned over one or more of the sub-optical patterns.
    Type: Application
    Filed: October 1, 2013
    Publication date: July 31, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Seung Soo BAEK, Woong Kwon KIM, Sang Ho KIM, Jae-Jin SONG, Sang Wook LEE, Hea Chun LEE, Young Goo SONG, Nam-Heon KIM, Dae Cheol KIM, Sung Ryul KIM, Jung Suk BANG, Ki Hun JEONG
  • Patent number: 7876396
    Abstract: A backlight assembly comprises a light source unit emitting light, a heat-blocking plate disposed over the light source unit to prevent heat generated from the light source unit from being upwardly transmitted, and a receiving container receiving the light source unit and the heat-blocking plate. The receiving container includes a bottom plate and a plurality of sidewalls. Each of the sidewalls extends from a side of the bottom plate and has openings formed through each of the sidewalls. The openings are formed over the heat-blocking plate.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: January 25, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-Ho Park, Won-Seok Kim, Sang-Soo Kim, Doo-Won Lee, Hea-Chun Lee, Young-Jae Lee, Nam-Heon Kim, Chae-Woo Chung, Sang-Wook Lee, Kwang-Soo Lee, Jin-Ho Cho, Jae-Hyun Cho
  • Publication number: 20090296025
    Abstract: A lamp assembly, light supplying module and LCD device using the same are provided. The LCD device includes the light-supplying module for generating a first light, a light distribution-changing module for receiving the first light and changing the optical characteristics of the first light to output a second light, and a display module for receiving the second light having improved optical characteristics, the light distribution-changing module being coupled to the light-supplying module by means of a first engaging member, the display module being coupled to the light distribution-changing module by means of a second engaging member, and the display module, light distribution-changing module and light-supplying module being coupled to each other by means of a third engaging member. Therefore, each component of the LCD device having above structure is easily separated, replaced and easily repaired.
    Type: Application
    Filed: August 6, 2009
    Publication date: December 3, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hea-Chun LEE, Sang-Soo KIM, Jin-Ho HA, Yoon-Soo KWON
  • Patent number: 7588346
    Abstract: A lamp assembly, light supplying module and LCD device using the same are provided. The LCD device includes the light-supplying module for generating a first light, a light distribution-changing module for receiving the first light and changing the optical characteristics of the first light to output a second light, and a display module for receiving the second light having improved optical characteristics, the light distribution-changing module being coupled to the light-supplying module by means of a first engaging member, the display module being coupled in the light distribution-changing module by means of a second engaging member, and the display module, light distribution-changing module and light-supplying module being coupled to each other by means of a third engaging member. Therefore, each component of the LCD device having above structure is easily separated, replaced and easily repaired.
    Type: Grant
    Filed: July 30, 2003
    Date of Patent: September 15, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hea-Chun Lee, Sang-Soo Kim, Jin-Ho Ha, Yoon-Soo Kwon
  • Patent number: 7559683
    Abstract: A backlight assembly includes a light source for emitting light; and a light guiding plate for guiding the light emitted from the light source. A plurality of prisms is discontinuously formed on a surface of the light guiding plate in a longitudinal direction thereof.
    Type: Grant
    Filed: August 30, 2005
    Date of Patent: July 14, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Hea-Chun Lee
  • Publication number: 20090147181
    Abstract: A backlight assembly comprises a light source unit emitting light, a heat-blocking plate disposed over the light source unit to prevent heat generated from the light source unit from being upwardly transmitted, and a receiving container receiving the light source unit and the heat-blocking plate. The receiving container includes a bottom plate and a plurality of sidewalls. Each of the sidewalls extends from a side of the bottom plate and has openings formed through each of the sidewalls. The openings are formed over the heat-blocking plate.
    Type: Application
    Filed: November 12, 2008
    Publication date: June 11, 2009
    Inventors: Jin-Ho Park, Won-Seok Kim, Sang-Soo Kim, Doo-Won Lee, Hea-Chun Lee, Young-Jae Lee, Nam-Heon Kim, Chae-Woo Chung, Sang-Wook Lee, Kwang-Soo Lee, Jin-Ho Cho, Jae-Hyun Cho
  • Patent number: 7483093
    Abstract: A flat fluorescent lamp includes a first substrate, a second substrate, an external electrode, and a radiating member. The second substrate is combined with the first substrate to form a plurality of discharge spaces. The external electrode is formed on at least one surface of the first substrate and the second substrate, wherein the external electrode extends perpendicularly to the discharge spaces. The radiating member is formed on the external electrode and radiates heat generated from the external electrode. Therefore, the heat generated from the flat fluorescent lamp is radiated to outside the flat fluorescent lamp through the radiating member, reducing pinhole formation and generally improving luminance characteristics of the flat fluorescent lamp.
    Type: Grant
    Filed: August 18, 2006
    Date of Patent: January 27, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yong-Woo Lee, Hea-Chun Lee, Jae-Sang Lee
  • Patent number: 7473018
    Abstract: A back light assembly includes a light guide plate (LGP), a light reflecting member (LRM), at least two lamps, and a receiving container. The LGP includes a light incidence face having a width that is a first distance, a light reflecting face for reflecting a first light, and a light exiting face for emitting the reflected first light as a second light. The LRM covers the light incidence face to form a receiving space defined by the LRM and the light incidence face. The at least two lamps are disposed in the receiving space and spaced apart from each other by a second distance. A sum of diameters of the two lamps and the second distance is longer than the first distance. The receiving container receives the LGP and the LRM, where the LRM includes a chamfer disposed at an edge, the chamfer enhancing a reflection efficiency.
    Type: Grant
    Filed: July 3, 2003
    Date of Patent: January 6, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Hea-Chun Lee
  • Patent number: 7453192
    Abstract: A backlight assembly includes a receiving container having a bottom and a side member to provide a receiving space, a flat-type fluorescent lamp received into the receiving container to emit a light, and a supporting member having a buffer disposed between the receiving container and the flat-type fluorescent lamp to buff an impact applied to the flat-type fluorescent lamp while supporting the flat-type fluorescent lamp. The buffer has protrusions protruding from a face of the supporting member. Thus, the backlight assembly may enhance impact resistance of the backlight assembly and prevent damage of the flat-type fluorescent lamp.
    Type: Grant
    Filed: August 9, 2005
    Date of Patent: November 18, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Hea-Chun Lee
  • Patent number: 7431493
    Abstract: A liquid crystal display includes a lamp assembly, a light guiding plate, and liquid crystal display panel assembly. The light guiding plate includes a light input face for receiving light from the lamp assembly, a light reflection face with at least one brightness enhancement recess, a light output face opposite the light reflection face for emitting light towards the liquid crystal display panel assembly, and a plurality of side faces. The at least one brightness enhancement recess reflects toward the light output face light from the light input face and light reflected by the side faces.
    Type: Grant
    Filed: June 5, 2006
    Date of Patent: October 7, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Hea-Chun Lee
  • Publication number: 20070132361
    Abstract: A backlight assembly includes a flat fluorescent lamp, a buffering member and a bottom chassis. The flat fluorescent lamp includes a lamp body generating light and an electrode portion formed on the lamp body. The buffering member contacts the electrode portion and includes at least one hole. The bottom chassis includes a bottom plate and a sidewall to receive the flat fluorescent lamp and the buffering member and includes at least one hole.
    Type: Application
    Filed: December 14, 2006
    Publication date: June 14, 2007
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Du-Hwan Chung, Byung-Cheon Yoo, Hyun-Chul Bae, Hea-Chun Lee
  • Publication number: 20070040961
    Abstract: A flat fluorescent lamp includes a first substrate, a second substrate, an external electrode, and a radiating member. The second substrate is combined with the first substrate to form a plurality of discharge spaces. The external electrode is formed on at least one surface of the first substrate and the second substrate, wherein the external electrode extends perpendicularly to the discharge spaces. The radiating member is formed on the external electrode and radiates heat generated from the external electrode. Therefore, the heat generated from the flat fluorescent lamp is radiated to outside the flat fluorescent lamp through the radiating member, reducing pinhole formation and generally improving luminance characteristics of the flat fluorescent lamp.
    Type: Application
    Filed: August 18, 2006
    Publication date: February 22, 2007
    Inventors: Yong-Woo Lee, Hea-Chun Lee, Jae-Sang Lee
  • Publication number: 20070035223
    Abstract: A backlight assembly includes a receiving container, a flat fluorescent lamp and a heat generating sheet. The flat fluorescent lamp is received in the receiving container. The flat fluorescent lamp includes a plurality of discharge spaces to generate light. The heat generating sheet is positioned adjacent to the flat fluorescent lamp, for example, under the flat fluorescent lamp, to supply the flat fluorescent lamp with heat. The heat generating sheet corresponds to an effective light emitting region of the flat fluorescent lamp where the light is emitted. As a result, heat is provided to the flat fluorescent lamp, thereby decreasing a time for stabilizing a luminance and improving light emitting characteristics.
    Type: Application
    Filed: February 3, 2006
    Publication date: February 15, 2007
    Inventors: Byung-Cheon Yoo, Hea-Chun Lee, Hyun-Chul Bae, Jae-Sang Lee
  • Publication number: 20070035245
    Abstract: A flat-type fluorescent lamp includes a first substrate, a second substrate and an adhesive member. The second substrate corresponds to the first substrate to form a plurality of discharge spaces. The adhesive member is interposed between the first and second substrates to combine the first substrate with the second substrate. The adhesive member includes a protrusion protruding in a longitudinal direction of the discharge spaces. Therefore, luminance uniformity and image display quality are improved.
    Type: Application
    Filed: June 16, 2006
    Publication date: February 15, 2007
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Hyun-Chul Bae, Hea-Chun Lee, Jin-Seob Byun, Jae-Sang Lee
  • Patent number: 7154570
    Abstract: A iquid crystal display apparatus that comprises: a liquid crystal display panel that displays a picture; a plurality of light guide plates that are installed on a rear of the liquid crystal display panel and are spaced from each other; and a back light assembly with a lamp assembly that emits light toward each light guide plate. As described above, the present invention provides the back light assembly and the liquid crystal display apparatus improving the brightness, reducing the thickness, removing the bright lines and the waterfall on the liquid crystal display panel, and lowering the manufacturing cost.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: December 26, 2006
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Hea-chun Lee
  • Publication number: 20060221630
    Abstract: Disclosed are a light guiding plate having a slimmed thickness and small volume, a manufacturing method of the light guiding plate and a liquid crystal display (LCD) having the light guiding plate. The light guiding plate has a light reflection face with at least one brightness enhancement recess, which allows a light having an optical distribution of a planar light source to be supplied toward the LCD panel. A brightness concentration recess is formed in the light output face to concentrate the brightness. The brightness enhancement recess and the brightness concentration recess allow an enhancement in the brightness and an increase in the uniformity in the brightness. The light guiding plate excludes use of the diffusion sheet, the prism sheet and the reflection plate from a backlight assembly, thereby significantly decreasing the total weight and volume of the LCD.
    Type: Application
    Filed: June 5, 2006
    Publication date: October 5, 2006
    Inventor: Hea-Chun Lee
  • Publication number: 20060119763
    Abstract: A flat fluorescent lamp is provided that includes a body including a first substrate, a second substrate opposite to the first substrate and comprising a light emitter, a space divider, and a discharging space between the first substrate and the second substrate, wherein the light emitter has an embossed surface.
    Type: Application
    Filed: September 30, 2005
    Publication date: June 8, 2006
    Inventors: Heu-Gon Kim, Sang-Hyuck Yoon, Jae-Ho Jung, Hea-Chun Lee