Patents by Inventor Chul Jeong

Chul Jeong 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: 20080130212
    Abstract: A display apparatus includes a display module and a front case. The display module displays images. The display module includes a boss fixing member having a combination hole. The front case covers a first surface of the display module and has a first boss that is inserted into the combination hole to combine the front case to the display module. The first boss is formed at inside edges of the display module. The boss fixing member is positioned within the edges of the display module which define the outdimension of the display module.
    Type: Application
    Filed: October 31, 2007
    Publication date: June 5, 2008
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Hyun-Chul JEONG, Jae-Hwan CHUN, Jong-Ho WON, Sung-Won CHUNG, Jung-Ki KIM, Sang-Sun HAN, Yu-Kwan KIM, Jeong-Ki KIM
  • Publication number: 20080129917
    Abstract: An inverter unit and a liquid crystal display having the inverter unit. The liquid crystal display includes a liquid crystal display panel, a chassis receiving the liquid crystal display panel, an inverter unit fastened to the chassis, and combining parts fastening the inverter unit to the chassis. The inverter unit includes an inverter, a substrate on which the inverter is mounted, fixing parts supporting the substrate, and fastening parts fastening the substrate to the fixing parts. The fixing parts include a base plate and a supporting plate extending at an angle from the base plate and the substrate is disposed on the supporting plate.
    Type: Application
    Filed: October 30, 2007
    Publication date: June 5, 2008
    Inventor: Seung Chul Jeong
  • Patent number: 7359280
    Abstract: A layout structure for sub word line drivers and method thereof. The example layout structure may include at least one N-channel transistor arrangement having a cross sectional width and a cross sectional length, the N-channel transistor arrangement oriented such that the cross sectional length extends along a first direction, the first direction oriented along a sub word line driver from a first sub array block to a second sub array block. The example method may arrange the at least one N-channel transistor between the first and second sub array blocks.
    Type: Grant
    Filed: January 23, 2006
    Date of Patent: April 15, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Soo-Bong Chang, In-Chul Jeong, Jun-Hyung Kim, Seung-Min Oh, Jung-Hwa Lee
  • Publication number: 20080074581
    Abstract: A backlight assembly of an LCD device which is capable of securing a enough space to mount a light guide plate by guiding lamp wires in the direction of a rear surface of the backlight assembly includes a lamp, a light guide plate configured to guide light emitted from the lamp, an optical sheet formed at an upper surface of the light guide plate, a mold frame accommodating the lamp, the light guide plate, and the optical sheet, a back cover formed at one side of a rear surface of the mold frame to protect the lamp and light guide plate, lamp wires connected at both ends of the lamp, and a wire outlet penetrating the back cover.
    Type: Application
    Filed: September 21, 2007
    Publication date: March 27, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTDL
    Inventor: Seung Chul JEONG
  • Publication number: 20080068914
    Abstract: An output driver, memory device and corresponding method are provided, the output driver having two transistors with their drains commonly connected and each of two sources of the two transistors connected to a separate supply node of a same polarity power supply, and a decoupling capacitor connected to each source; and the memory device having an output driver with a plurality of connected drivers, each driver having a transistor of a first type connected to a transistor of a second type to provide an output drive signal therebetween, and at least one decoupling capacitor, the output driver circuit having a plurality of first voltage supply nodes adapted to connect to a first voltage supply and a plurality of second voltage supply nodes adapted to connect to a second voltage supply, and at each odd driver, the transistor of the first type is made up of two transistors commonly connected at the connection with the transistor of the second type, but separately connected to different first voltage supply nodes;
    Type: Application
    Filed: July 19, 2007
    Publication date: March 20, 2008
    Inventor: You-Chul Jeong
  • Patent number: 7344295
    Abstract: The backlight assembly includes a lamp unit, a light guide plate and a receiving container. The light guide plate includes a light exiting surface, a light reflecting surface facing the light exiting surface, and side surfaces. The receiving container includes a frame plate and sidewall protruding from an outer edge of the frame plate to form a receiving space for receiving the lamp unit and the light guide plate. The first distance between an inner surface of the sidewall and an outer surface of the light guide plate at a first region is greater than a second distance between the inner surface of the sidewall and the outer surface of the light guide plate at a second region. The light guide plate is more spaced apart from the sidewall at the corners where much noise was made, in a general backlight assembly, so that the noise is reduced.
    Type: Grant
    Filed: March 16, 2006
    Date of Patent: March 18, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Seung-Chul Jeong
  • Publication number: 20080063871
    Abstract: An adhesive film composition, including an elastomer resin having one or more of a hydroxy group, a carboxyl group, or an epoxy group, a film-forming resin having a glass transition temperature of about ?10° C. to about 200° C., an epoxy resin, a phenol-type curing agent, a curing catalyst, a pre-curable additive, a silane coupling agent, and a filler.
    Type: Application
    Filed: September 10, 2007
    Publication date: March 13, 2008
    Inventors: Ki Jung, Wan Kim, Yong Hong, Chul Jeong, Chang Chung
  • Publication number: 20080056033
    Abstract: A semiconductor memory device includes a delay time selecting portion for outputting, as a final read/write command, an internal read/write command that corresponds to an external read/write command and is synchronized with an external clock rising edge at a tRCD time without any delay when an address is applied before an address setup time based on the external clock rising edge of a previously set tRCD time, a decoder for decoding an address applied from an external portion with the read/write command to output a decoded address, and a selecting portion for receiving the decoded address to select a memory cell of a memory cell array in response to the final read/write command.
    Type: Application
    Filed: August 23, 2007
    Publication date: March 6, 2008
    Applicant: Samsung Electronics, Co., Ltd.
    Inventor: In-Chul Jeong
  • Publication number: 20080026301
    Abstract: A method of fabricating a LCD device comprises preparing a substrate having a plurality of LCD panel regions within main exposure regions, performing a main exposure process at the LCD panel regions to define a non-exposure region between the main exposure regions; and performing a sub exposure process at the non-exposure region formed between the main exposure regions.
    Type: Application
    Filed: September 26, 2007
    Publication date: January 31, 2008
    Inventors: Chul Jeong, Dae-Jin Jeon, Hae-Jin Kim
  • Patent number: 7292305
    Abstract: A method of fabricating a LCD device comprises preparing a substrate having a plurality of LCD panel regions within main exposure regions, performing a main exposure process at the LCD panel regions to define a non-exposure region between the main exposure regions; and performing a sub exposure process at the non-exposure region formed between the main exposure regions.
    Type: Grant
    Filed: June 24, 2004
    Date of Patent: November 6, 2007
    Assignee: LG.Philips LCD Co., Ltd.
    Inventors: Chul Jeong, Dae-Jin Jeon, Hae-Jin Kim
  • Publication number: 20070214825
    Abstract: An ice maker for a refrigerator includes a first shaft rotatably fastened to an inside of an ice bank, a second shaft fastened to an end of the first shaft and rotated by a driving motor, and a plurality of blades formed along a longitudinal direction of the second shaft. The blades are spaced apart a predetermined distance along the second shaft and have a spiral surface which acts to push ice as the second shaft rotates. The first shaft may be formed of a material such as steel, which has good torsional elasticity. The second shaft and the blades may be formed as one molded piece.
    Type: Application
    Filed: March 13, 2007
    Publication date: September 20, 2007
    Inventors: Kyung Han Jeong, In Chul Jeong, Myung Ryul Lee
  • Publication number: 20070151282
    Abstract: An icemaker and a method for controlling the same are disclosed. An object of the present invention is to provide an icemaker and a method for controlling the same, which has an improved structure to make a lot of ice in a short time. an icemaker includes an ice tray rotatable with at least one column of ice making chambers formed therein to make ice; an ejector rotatably provided in each ice making chamber to eject the ice formed in the ice making chamber; an operation device which rotates the ice tray; and a separation device which separates the ice from the ice tray. The separation device may be a heater which heats the ice. Preferably, the heater is operated until adhesive force which acts between the ice and the ice tray is smaller than pushing force in which the ejector pushes the ice.
    Type: Application
    Filed: December 15, 2006
    Publication date: July 5, 2007
    Applicant: LG Electronics Inc.
    Inventors: Kyung Han Jeong, In Chul Jeong, Nam Gi Lee
  • Publication number: 20070137241
    Abstract: A method of controlling a refrigerator including an ice maker for making ice using chilled air is disclosed. The method includes supplying chilled air to a compartment, blowing chilled air in the compartment to an ice-making tray disposed in the compartment regardless of conditions in the compartment, and varying a blowing speed of the chilled air in the compartment to the ice-making tray according to a demand. According to the present invention, a large quantity of ice can be produced within a short time. Ice-making speed and the quantity of ice can be varied according to a user's demand.
    Type: Application
    Filed: October 30, 2006
    Publication date: June 21, 2007
    Applicant: LG ELECTRONICS INC.
    Inventors: Dong Hoon LEE, In Chul JEONG, Young Jin KIM
  • Publication number: 20070109767
    Abstract: A backlight assembly includes a receiving container, lamps, a diffusion plate and a lamp-fixing member. The receiving container includes a bottom plate and sidewalls together providing a receiving space. The lamps are arranged substantially parallel to each other on the bottom plate. The diffusion plate is disposed over the lamps. The lamp-fixing member includes a body portion extending substantially perpendicular to the lamps, a buffer protruding upwardly from the body portion, a diffusion plate supporting portion protruding from the buffer to support the diffusion plate and a lamp-fixing portion formed at the body portion to fix the lamps. Therefore, the buffer having elasticity is formed at an area at which the diffusion plate supporting portion is formed, so that rubbing between the diffusion plate and the diffusion plate supporting portion may be reduced.
    Type: Application
    Filed: November 2, 2006
    Publication date: May 17, 2007
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Sang-Sun HAN, Jae-Hwan CHUN, Jong-Ho WON, Hyun-Chul JEONG, Won-Ju KIM, Young-Nam KIM
  • Publication number: 20070091589
    Abstract: A backlight assembly includes a receiving container, a plurality of lamps and a lamp support member. The receiving container includes a bottom portion and a side portion defining a receiving space. The lamps are arranged substantially in parallel with each other in the receiving container and generate light. The lamp support member is disposed in the receiving container. The lamp support member includes a support lamp ring supporting the lamp and a support plate coupled to the support lamp ring fixing the support lamp ring.
    Type: Application
    Filed: October 19, 2006
    Publication date: April 26, 2007
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Jae-Min CHOI, Jae-Hwan CHUN, Jong-Ho WON, Hyun-Chul JEONG
  • Patent number: 7194499
    Abstract: A pipelined divider with a small lookup table is disclosed. The pipelined divider can greatly reduce the size of a lookup table with a low cost to overcome the problems involved in the conventional pipelined divider requiring a large lookup table due to its iterative operation type. The pipelined divider has a delay time of 3 cycles in a single precision, and can reduce a chip size by about ? in comparison to the existing pipelined divider.
    Type: Grant
    Filed: August 30, 2002
    Date of Patent: March 20, 2007
    Assignee: Yonsei University
    Inventors: Woong Jeong, Jong Chul Jeong, Woo Chan Park, Moon Key Lee, Tack Don Han
  • Publication number: 20070008807
    Abstract: The present invention describes systems and method for driving wordlines of memory devices. Some embodiments include a selection signal driver to generate a selection signal responsive to a first wordline signal, a main wordline driver to generate a main wordline signal responsive to a second wordline signal, the selection signal corresponding to one of the power supply voltage and the ground voltage and the main wordline signal corresponding to the other one of the power supply voltage and the ground voltage, and a sub-wordline driver to generate a sub-wordline signal responsive to the main wordline signal, the sub-wordline signal having a voltage level corresponding to the selection signal or a low voltage.
    Type: Application
    Filed: July 7, 2006
    Publication date: January 11, 2007
    Inventor: In-Chul Jeong
  • Publication number: 20060291253
    Abstract: A light-guide plate (LGP) includes a light-incident surface, a light-facing surface, a light-emitting surface and a light-reflecting surface. The light-incident surface receives light. The light-facing surface has a smaller size than that of the light-incident surface. The light-facing surface faces the light-incident surface. The light-emitting surface is extended substantially perpendicular to the upper side of the light-incident surface. The light-emitting surface is connected to the upper edge of the light-facing surface. The light-reflecting surface has a plurality of first prism patterns that are formed parallel with the light-incident surface. The light-reflecting surface is extended from the base of the light-incident surface to be connected to the base of the light-facing surface. Therefore, a leakage of light that exits from the wedge-type LGP through a side surface of the wedge-type LGP is decreased, so that luminance is enhanced.
    Type: Application
    Filed: June 8, 2006
    Publication date: December 28, 2006
    Inventors: Heu-Gon Kim, In-Sun Hwang, Jheen-Hyeok Park, Tae-Seok Jang, Seung-Chul Jeong, Tae-Gil Kang, Jin-Sung Choi
  • Publication number: 20060274224
    Abstract: Disclosed is a liquid crystal display (LCD) device in which a movement of a light guide plate received in a mold frame can be minimized. A light guide plate has catching jaws and projections. The catching jaws are formed by cutting at least one corner of an end portion of the light guide plate receiving the light from the lamp unit. The projections extend outwardly from sidewalls of the catching jaws, which respectively have a thinner thickness than the catching jaws. A mold frame receives the light guide plate and the lamp unit and has catching bosses and recesses. The catching bosses are formed at positions corresponding to the catching jaws on a bottom surface of the mold frame to engage with the catching jaws to fix the light guide plate in the mold frame. The recesses are formed at respective positions corresponding to the projections at sidewalls of the mold frame to receive the projections.
    Type: Application
    Filed: August 14, 2006
    Publication date: December 7, 2006
    Inventor: Seung-Chul Jeong
  • Patent number: 7105066
    Abstract: A welding structural steel product exhibiting a superior heat affected zone toughness, comprising, in terms of percent by weight, 0.03 to 0.17% C, 0.01 to 0.5% Si, 0.4 to 2.0% Mn, 0.005 to 0.2% Ti, 0.0005 to 0.1% Al, 0.008 to 0.030% N, 0.0003 to 0.01% 0.00 1 to 0.2% W, at most 0.03% P, at most 0.03% S, at most 0.005% 0, and balance Fe and incidental impurities while satisfying conditions of 1.2?Ti/N?2.5, 10?N/B?40, 2.5?Al/N?7, and 6.5?(Ti+2Al+4B)/N?14, and having a microstructure essentially consisting of a complex structure of ferrite and pearlite having a grain size of 20 ?m or less. The method includes the steps of preparing a slab of the above-described composition, heating the slab to 1,100° C. to 1,250° C. for 60-180 minutes, hot rolling the heated slab in an austenite recrystallization range at a 40% or more rolling reduction followed by controlled cooling.
    Type: Grant
    Filed: November 16, 2001
    Date of Patent: September 12, 2006
    Assignee: Posco
    Inventors: Hong-Chul Jeong, Hae-Chang Choi