Patents by Inventor Doo-won Lee
Doo-won 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).
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Publication number: 20240145243Abstract: A laser annealing method includes selecting a reference intensity from a plurality of intensities of a plurality of peaks; where the reference intensity is used to determine a pulse shape of laser irradiation during laser annealing, setting the pulse shape by setting an intensity ratio of a first peak having a smallest peak occurrence time among the plurality of peaks to less than about 100 percent relative to the reference intensity, and irradiating a laser beam having the pulse shape to a stage.Type: ApplicationFiled: August 18, 2023Publication date: May 2, 2024Inventors: CHEOLHO PARK, JEKIL RYU, JEONGHUN WOO, DOO-WON LEE, HAESOOK LEE, JIN HONG JEUN
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Patent number: 9119126Abstract: A handover decision is capable of lowering a handover failure rate of horizontal handover between a source base station and a target base station in a wireless communication system. After deciding a target base station to which the mobile terminal is to be handed over, a hysteresis value for determining a handover execution point is decided, and execution of the handover of the mobile terminal occurs when a difference between the received signal strength of a signal received from the target base station to the mobile terminal and the received signal strength of a signal received from the source base station to the mobile terminal is continuously maintained at the hysteresis value or above during a predetermined time.Type: GrantFiled: May 23, 2011Date of Patent: August 25, 2015Assignee: KT CORPORATIONInventors: Gye-Tae Gil, Dong-Hoi Kim, Doo-Won Lee
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Patent number: 8638409Abstract: A liquid crystal display (LCD) is provided. The LCD includes at least one light source which provides light, a display panel which includes pixels reflecting the light from the light source, and at least one light guide plate (LGP) which is formed substantially parallel to a surface of the display panel and is separated from the display panel, wherein a predetermined space is defined between the LGP and the display panel, and the LGP guides the light emitted from the light source to the pixels and allows the light reflected by the pixels to pass through the LGP.Type: GrantFiled: March 9, 2011Date of Patent: January 28, 2014Assignee: Samsung Display Co., Ltd.Inventors: Doo-Won Lee, Sang-Wook Lee, Sung-Jun Kim
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Patent number: 8558780Abstract: A display apparatus includes a backlight assembly, a first display panel assembly and a second display panel assembly. The backlight assembly includes a plurality of lamps disposed substantially parallel with each other. The backlight assembly emits first light through a first face and second light through a second face. The first display panel assembly is disposed adjacent to the first face to receive the first light. The second display panel assembly is disposed adjacent to the second face to receive the second light. The backlight assembly may further include a driving inverter electrically connected to first and second ends of the lamps to provide the lamps with driving voltages. Therefore, the backlight assembly applies light to the first and second display panel assemblies to reduce the number of backlight assemblies. Therefore, costs for manufacturing a display apparatus may be reduced.Type: GrantFiled: March 6, 2008Date of Patent: October 15, 2013Assignee: Samsung Display Co., Ltd.Inventors: Young-A Lee, Yong-Hyun Hwang, Kwang-Soo Lee, Dong-Gyu Lee, Doo-Won Lee, Jong-Young Yun, Neung-Beom Lee
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Publication number: 20130260764Abstract: A handover decision is capable of lowering a handover failure rate of horizontal handover between a source base station and a target base station in a wireless communication system. After deciding a target base station to which the mobile terminal is to be handed over, a hysteresis value for determining a handover execution point is decided, and execution of the handover of the mobile terminal occurs when a difference between the received signal strength of a signal received from the target base station to the mobile terminal and the received signal strength of a signal received from the source base station to the mobile terminal is continuously maintained at the hysteresis value or above during a predetermined time.Type: ApplicationFiled: May 23, 2011Publication date: October 3, 2013Applicant: KT CORPORATIONInventors: Gye-Tae Gil, Dong-Hoi Kim, Doo-Won Lee
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Publication number: 20110234943Abstract: A liquid crystal display (LCD) is provided. The LCD includes at least one light source which provides light, a display panel which includes pixels reflecting the light from the light source, and at least one light guide plate (LGP) which is formed substantially parallel to a surface of the display panel and is separated from the display panel, wherein a predetermined space is defined between the LGP and the display panel, and the LGP guides the light emitted from the light source to the pixels and allows the light reflected by the pixels to pass through the LGP.Type: ApplicationFiled: March 9, 2011Publication date: September 29, 2011Inventors: DOO-WON LEE, Sang-Wook Lee, Sung-Jun Kim
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Patent number: 7876396Abstract: 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: GrantFiled: November 12, 2008Date of Patent: January 25, 2011Assignee: 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
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Publication number: 20100201663Abstract: A method of driving a display panel includes; sensing an illumination of a surrounding area which surrounds the display panel, and selectively displaying a black line image on the display panel in accordance with the illumination of the surrounding area.Type: ApplicationFiled: July 16, 2009Publication date: August 12, 2010Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sung-Hun LEE, Hyun-Seok JEONG, Doo-Won LEE, Dong-Gyu LEE
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Publication number: 20090147181Abstract: 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: ApplicationFiled: November 12, 2008Publication date: June 11, 2009Inventors: 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
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Patent number: 7530727Abstract: A backlight assembly includes a receiving container including a bottom plate having a lower face and an upper face opposite the lower face, a sidewall part protruding from edge portions of the bottom plate, and a plurality of light property controlling parts disposed on the upper face and having a substantially wedge shaped cross-section. The backlight further includes a light source disposed between adjacent light property controlling parts, and the light source is received by the receiving container, wherein a distance between a center of the light source and the upper face is substantially equal to a height of at least one of the plurality of light property controlling parts. The backlight assembly may increase the brightness and brightness-uniformity of light.Type: GrantFiled: January 10, 2006Date of Patent: May 12, 2009Assignee: Samsung Electronics, Co., Ltd.Inventors: Seong-Sik Choi, Dong-Lyoul Shin, Kui-Yong Choi, Jae-Hwan Chun, Doo-Won Lee
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Patent number: 7447006Abstract: A monitor including a monitor main body, a stand supporting the monitor, and a link connecting the monitor main body with the stand, the monitor including a hinge allowing the monitor main body to be tilted about the stand between a first tilting state such as a standing state and a second tilting state such as a wall-mounting state; a locking unit provided in the hinge, rotating integrally with the monitor main body, and including a first locker corresponding to the first tilting state and a second locker corresponding to the second tilting state; and a stopper coupled to the link, sliding within the first locker and the second locker, and restricting a tilting angle of the monitor main body by contacting the first locker and the second locker. With this configuration, the present general inventive concept provides a monitor of which a monitor main body is smoothly and easily tilted about a stand between a standing state and a wall-mounting state.Type: GrantFiled: May 9, 2005Date of Patent: November 4, 2008Assignee: Samsung Electronics Co., LtdInventors: Suk-jo Kang, Jae-soo Sim, Doo-won Lee
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Publication number: 20080231591Abstract: A display apparatus includes a backlight assembly, a first display panel assembly and a second display panel assembly. The backlight assembly includes a plurality of lamps disposed substantially parallel with each other. The backlight assembly emits first light through a first face and second light through a second face. The first display panel assembly is disposed adjacent to the first face to receive the first light. The second display panel assembly is disposed adjacent to the second face to receive the second light. The backlight assembly may further include a driving inverter electrically connected to first and second ends of the lamps to provide the lamps with driving voltages. Therefore, the backlight assembly applies light to the first and second display panel assemblies to reduce the number of backlight assemblies. Therefore, costs for manufacturing a display apparatus may be reduced.Type: ApplicationFiled: March 6, 2008Publication date: September 25, 2008Applicant: SAMSUNG ELECTRONICS CO., LTDInventors: Young-A LEE, Yong-Hyun HWANG, Kwang-Soo LEE, Dong-Gyu LEE, Doo-Won LEE, Jong-Young YUN, Neung-Beom LEE
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Publication number: 20060181867Abstract: A light-diffusing member includes a first face, a second face arranged opposite to the first face, and a light-diffusing portion including at least one valley and at least one ridge that are alternatively arranged. A first thickness of the light-diffusing member between the ridge and the first face is about 1.15 to about 1.80 times greater than a second thickness of the light-diffusing member between the valley and the first face.Type: ApplicationFiled: December 15, 2005Publication date: August 17, 2006Inventors: Seong-Sik Choi, Dong-Lyoul Shin, Doo-Won Lee, Kui-Yong Choi, Ju-Hwa Ha, Byung-Yun Joo, Jung-Wook Paek, Jin-Sung Choi, Heu-Gon Kim, Sang-Hoon Lee, Jae-Hwan Chun
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Publication number: 20060170838Abstract: A backlight assembly includes a receiving container and a light source. The receiving container includes a bottom plate having a lower face and an opposing upper face, a sidewall part, and a plurality of light property controlling parts having a substantially wedge shaped cross-section, which extend substantially parallel to a pair of first sidewalls of the sidewall part. The light source is disposed between adjacent light property controlling parts, and the light source is received by the receiving container. The backlight assembly may increase the brightness and brightness-uniformity of light.Type: ApplicationFiled: January 10, 2006Publication date: August 3, 2006Inventors: Seong-Sik Choi, Dong-Lyoul Shin, Kui-Yong Choi, Jae-Hwan Chun, Doo-Won Lee
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Publication number: 20060158897Abstract: In a backlight assembly and an LCD apparatus including a receiving unit formed by an injection molding process, a plurality of sidewalls is protruded from a bottom plate, and a receiving space is defined by the sidewalls and the bottom plate. A strength-reinforcing member is formed on a rear surface of the bottom plate to thereby reinforce a bending strength of the bottom plate. Accordingly, the receiving unit for receiving a lamp unit is formed using a material used with an injection molding process, and the strength-reinforcing member reinforces the bending strength of the bottom plate. Cost and weight of the backlight assembly and the LCD apparatus may be sufficiently reduced.Type: ApplicationFiled: January 17, 2006Publication date: July 20, 2006Inventors: Seong-Sik Choi, Dong-Lyoul Shin, Doo-Won Lee, Kui-Yong Choi, Jae-Hwan Chun, Du-Hwan Chung
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Publication number: 20060139919Abstract: In a receiving container, a backlight assembly having the receiving container, and a display device having the backlight assembly, the receiving container includes a bottom plate, sidewalls, and optical support members. The sidewalls extend from an edge of the bottom plate. The sidewalls are connected to each other to define a receiving recess therebetween. The optical support members protrude from a front face of the bottom plate to support optical units thereon. The optical support members are integrally formed with the bottom plate. The bottom mold is integrally formed with lamp supporters and/or dispersion plate support members. Thus, cost required for manufacturing the bottom mold is relatively low. In addition, time required for manufacturing the bottom mold is relatively short. Furthermore, a light leakage is prevented between the bottom mold and the optical support members.Type: ApplicationFiled: July 27, 2005Publication date: June 29, 2006Inventors: Seong-Sik Choi, Doo-Won Lee, Dong-Lyoul Shin
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Publication number: 20050248912Abstract: A monitor including a monitor main body, a stand supporting the monitor, and a link connecting the monitor main body with the stand, the monitor including a hinge allowing the monitor main body to be tilted about the stand between a first tilting state such as a standing state and a second tilting state such as a wall-mounting state; a locking unit provided in the hinge, rotating integrally with the monitor main body, and including a first locker corresponding to the first tilting state and a second locker corresponding to the second tilting state; and a stopper coupled to the link, sliding within the first locker and the second locker, and restricting a tilting angle of the monitor main body by contacting the first locker and the second locker. With this configuration, the present general inventive concept provides a monitor of which a monitor main body is smoothly and easily tilted about a stand between a standing state and a wall-mounting state.Type: ApplicationFiled: May 9, 2005Publication date: November 10, 2005Inventors: Suk-jo Kang, Jae-soo Sim, Doo-won Lee
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Publication number: 20050061447Abstract: A plasma etch apparatus is disclosed. The plasma etch apparatus includes an electrostatic chuck for loading a wafer; an insulation portion surrounding the electrostatic chuck; and a focus ring disposed on the electrostatic chuck and the insulation portion. The focus ring has a concave-convex configuration.Type: ApplicationFiled: September 20, 2004Publication date: March 24, 2005Applicant: Samsung Electronics Co., Ltd.Inventors: Yong-Dae Kim, Soon-Ho Yon, Do-Hyeong Kim, Doo-Won Lee
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Patent number: 6835276Abstract: An end point detection window prevents process failures in a plasma etching device. The end point detection window has a body of aluminum or an aluminum alloy through which a hole extends to provide a path along which light generated during the etching process can pass from the process chamber, and a capping section coupled to a light outlet of the body. The capping section is of quartz for allowing the light passing through the hole in the body to be transmitted out of the process chamber.Type: GrantFiled: September 19, 2002Date of Patent: December 28, 2004Assignee: Samsung Electronics Co., Ltd.Inventors: Jung-Hyun Hwang, No-Hyun Huh, Chang-Won Choi, Byeung-Wook Choi, Doo-Won Lee
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Publication number: 20030057182Abstract: An end point detection window prevents process failures in a plasma etching device. The end point detection window has a body of aluminum or an aluminum alloy through which a hole extends to provide a path along which light generated during the etching process can pass from the process chamber, and a capping section coupled to a light outlet of the body. The capping section is of quartz for allowing the light passing through the hole in the body to be transmitted out of the process chamber.Type: ApplicationFiled: September 19, 2002Publication date: March 27, 2003Inventors: Jung-Hyun Hwang, No-Hyun Huh, Chang-Won Choi, Byeung-Wook Choi, Doo-Won Lee