Patents by Inventor Jae-Chang Choi
Jae-Chang 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).
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Publication number: 20140003031Abstract: A display device includes: a display panel; a bottom container member which receives the display panel; an auxiliary member including a bottom, and a side extending from an edge of the bottom, and coupled with the bottom container member; a light source unit coupled with the side of the auxiliary member; and a first heat radiating member between the auxiliary member and the light source unit. The first heat radiating member includes a phase change material.Type: ApplicationFiled: January 4, 2013Publication date: January 2, 2014Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Young Hwi KIM, Won Jin KIM, Sang Hoon LEE, Seong Sik CHOI, Jae Chang CHOI
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Patent number: 8439551Abstract: A backlight assembly includes a light guide plate guiding light, one or more light sources disposed on a side of the light guide plate and generating and providing the light to the light guide plate, a housing including a bottom portion and sidewall portions which each extend from the bottom portion, and accommodating the light guide plate and the light sources, and a light source cover. The light source cover includes a flat portion which contacts a top surface of the light guide plate, a height-adjusting portion which extends upward or downward from the flat portion to form a stepped shape and has the light sources installed thereunder, and fixing portions which extend from the height-adjusting portion and are fixed to a corresponding one of the sidewall portions. A centerline of the light sources is aligned with a centerline of the light guide plate.Type: GrantFiled: September 29, 2009Date of Patent: May 14, 2013Assignee: Samsung Display Co., Ltd.Inventors: Joo-Woan Cho, Jae-Chang Choi, Yong-Woo Lee
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Publication number: 20120236588Abstract: A backlight assembly includes a light guiding plate and a plurality of first light sources. The light guiding plate includes a light exiting surface through which light can exit, a light guiding surface positioned opposite to the light exiting surface, and a first surface extending between the light guiding surface and the light exiting surface and inclined with respect to the light guiding surface by a first angle. The first angle is an acute angle. The first light sources can generate light, and are disposed under the light guiding plate. These first light sources are disposed adjacent to a first edge connecting the first surface with the light guiding surface.Type: ApplicationFiled: February 17, 2012Publication date: September 20, 2012Inventors: Dong-Lyoul SHIN, Jae-Chang CHOI, Tae-Ho LEE, Je-Won YOO, Su-Chang RYU
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Publication number: 20120188793Abstract: A backlight assembly includes a light emitting module and a receiving container. The receiving container receives the light emitting module, and includes a first frame, a second frame and a heat dissipation channel. The first frame includes a first bottom, and first sidewalls connected to the first bottom. The second frame includes a second bottom which faces the first bottom and is sealed with the first frame. The first and second bottoms are spaced apart from each other and form the heat dissipation channel therebetween.Type: ApplicationFiled: January 24, 2012Publication date: July 26, 2012Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Dong-Lyoul SHIN, Hirokazu SHIBATA, Jae-Chang CHOI
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Publication number: 20120063120Abstract: A backlight assembly includes a light source unit including a circuit board, a light source disposed on a first plane, of the circuit board, and at least one connection unit disposed on a second plane opposite to the first plane of the circuit board and electrically connected to the light source, a receiving container having a bottom plate and sidewalls extending from edges of the bottom plate and receiving the light source unit, the bottom plate including at least one opening portion in which the connection unit is inserted and exposed to the outside, and at least one driving unit disposed at a rear surface of the receiving container and connected to the connection unit for driving the light source unit.Type: ApplicationFiled: November 21, 2011Publication date: March 15, 2012Inventors: JIN-HEE PARK, Bong-Hyun You, Jae-Chang Choi
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Patent number: 8068191Abstract: A liquid crystal display apparatus includes a liquid crystal display panel, a mold frame, chassis and a strength-reinforcing member. The liquid crystal display panel displays an image. The mold frame receives the liquid crystal display panel. The chassis is combined with the mold frame to secure an end of the liquid crystal display panel, and includes a first side portion and a coupling hole formed at the first side portion. The strength-reinforcing member is disposed between the first side portion and the mold frame. As a result, a strength of the chassis may be improved, and the to liquid crystal display panel may be prevented from being damaged.Type: GrantFiled: February 13, 2007Date of Patent: November 29, 2011Assignee: Samsung Electronics Co., Ltd.Inventor: Jae-Chang Choi
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Patent number: 8064006Abstract: A backlight assembly includes a light source unit including a circuit board, a light source disposed on a first plane of the circuit board, and at least one connection unit disposed on a second plane opposite to the first plane of the circuit board and electrically connected to the light source, a receiving container having a bottom plate and sidewalls extending from edges of the bottom plate and receiving the light source unit, the bottom plate including at least one opening portion in which the connection unit is inserted and exposed to the outside, and at least one driving unit disposed at a rear surface of the receiving container and connected to the connection unit for driving the light source unit.Type: GrantFiled: September 5, 2008Date of Patent: November 22, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Jin-Hee Park, Bong-Hyun You, Jae-Chang Choi
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Patent number: 8040455Abstract: A display device including a display module and an information processing device having the same is described herein. The display device includes a display module, a supporting frame, and a fixing frame. The supporting frame supports a rear face of the display module corresponding to a peripheral area, a side face of the display module, and includes a coupling portion used for connecting the fixing frame to an information input device. A rear housing receives the display device. A front housing is connected to the rear housing and has an opening to expose a display screen of the display module.Type: GrantFiled: November 5, 2008Date of Patent: October 18, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Joo-Yeon Won, Jae-Chang Choi, Sang-Soo Kim, Jung-Tae Kang
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Patent number: 8031291Abstract: The present invention relates to a liquid crystal display and a tablet computer having the same. According to the present invention, there is provided a liquid crystal display, comprising: a liquid crystal display panel for displaying an image; a driving circuit unit connected to the liquid crystal display panel and including a printed circuit board mounted with a circuit component; a top chassis disposed over the liquid crystal display panel; and a fastening member for fastening the printed circuit board of the driving circuit unit to the top chassis.Type: GrantFiled: February 15, 2008Date of Patent: October 4, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Joo Yeon Won, Sang Hoon Park, Jae Chang Choi, Young Joo Nam
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Patent number: 7948577Abstract: Disclosed is a stereoscopic display device including: a first display panel displaying a main image; a second display panel disposed on the first display panel and displaying a sub-image; a first mold frame supporting the first display panel and maintaining a gap between the first display panel and the second display panel; and a second mold frame supporting the second display panel. The first mold frame may include sidewalls forming an enclosed space with the first and second display panels and having a portion that inclines into the enclosed space.Type: GrantFiled: October 23, 2008Date of Patent: May 24, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Yong-Hwi Kim, Bong-Hyun You, Jae-Chang Choi, Jin-Hee Park
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Publication number: 20110090426Abstract: Provided are a backlight assembly with improved heat dissipation, and a liquid crystal display (LCD) having such a backlight assembly. The backlight assembly includes: a light guide plate; a light source unit disposed on a side of the light guide plate; an intermediate housing covering an upper surface of the light source unit; and a lower housing coupled to the intermediate housing to accommodate the light guide plate and the light source unit, wherein the lower housing includes: a light source unit-fixing frame to which the light source unit is fixed, the light source unit-fixing frame contacting an inner surface of the intermediate housing; and a body portion disposed under the light guide plate and coupled to the light source unit-fixing frame.Type: ApplicationFiled: October 18, 2010Publication date: April 21, 2011Inventors: Jae-Chang Choi, Seong-Sik Choi
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Publication number: 20110085107Abstract: A backlight assembly of a Liquid Crystal Display (LCD) is provided with improved heat dissipation capabilities. The improved dissipation capabilities come from one or more light-sourcing unit fixing frames that have extensions which protrude to outside a housing that houses light sourcing units of the LCD. The light-sourcing unit fixing frames mechanically interlock with the housing.Type: ApplicationFiled: October 1, 2010Publication date: April 14, 2011Inventors: Cheol-Yong NOH, Jae-Chang Choi, Seong-Sik Choi
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Publication number: 20100277664Abstract: Provided is a liquid crystal display (LCD) with improved heat dissipation and reduced thickness. The LCD includes for an embodiment: a lower housing; a heat-dissipating member which is disposed in the lower housing; a plurality of point light sources which are disposed on the heat-dissipating member; a plurality of electric wires which supply power to the point light sources; and a light guide plate (LGP) which is disposed in the lower housing in such a way that side surfaces of the LGP face the point light sources.Type: ApplicationFiled: April 27, 2010Publication date: November 4, 2010Inventors: Joo-Young KIM, Hyun-Chul Bae, Jae-Chang Choi, Seong-Sik Choi
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Publication number: 20100149835Abstract: A backlight assembly includes a light guide plate guiding light, one or more light sources disposed on a side of the light guide plate and generating and providing the light to the light guide plate, a housing including a bottom portion and sidewall portions which each extend from the bottom portion, and accommodating the light guide plate and the light sources, and a light source cover. The light source cover includes a flat portion which contacts a top surface of the light guide plate, a height-adjusting portion which extends upward or downward from the flat portion to form a stepped shape and has the light sources installed thereunder, and fixing portions which extend from the height-adjusting portion and are fixed to a corresponding one of the sidewall portions. A centerline of the light sources is aligned with a centerline of the light guide plate.Type: ApplicationFiled: September 29, 2009Publication date: June 17, 2010Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Joo-Woan CHO, Jae-Chang CHOI, Yong-Woo LEE
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Patent number: 7667789Abstract: A backlight unit which includes a structure in which the sensitivity of a light sensor for detecting color reproducibility of white light is increased, and a liquid crystal display (“LCD”) device having the same. The backlight unit includes a light source which generates light, a light guide plate which guides the light incident from the light source, a light sensor which detects the light emitted from the light guide plate and a mold frame which receives the light source, the light guide plate, and the light sensor. The mold frame includes a receiving recess which receives the light sensor, and a light sensing structure formed on a sidewall thereof being in contact with a side of the light guide plate which reflects the light emitted from the light guide plate and provides the light emitted from the light guide plate to the light sensor.Type: GrantFiled: December 17, 2007Date of Patent: February 23, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Jae-Chang Choi, Dong-Gyun Ra
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Publication number: 20090174827Abstract: Disclosed is a stereoscopic display device including: a first display panel displaying a main image; a second display panel disposed on the first display panel and displaying a sub-image; a first mold frame supporting the first display panel and maintaining a gap between the first display panel and the second display panel; and a second mold frame supporting the second display panel. The first mold frame may include sidewalls forming an enclosed space with the first and second display panels and having a portion that inclines into the enclosed space.Type: ApplicationFiled: October 23, 2008Publication date: July 9, 2009Inventors: Yong-Hwi KIM, Bong-Hyun You, Jae-Chang Choi, Jin-Hee Park
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Publication number: 20090174838Abstract: A backlight assembly includes a light source unit including a circuit board, a light source disposed on a first plane of the circuit board, and at least one connection unit disposed on a second plane opposite to the first plane of the circuit board and electrically connected to the light source, a receiving container having a bottom plate and sidewalls extending from edges of the bottom plate and receiving the light source unit, the bottom plate including at least one opening portion in which the connection unit is inserted and exposed to the outside, and at least one driving unit disposed at a rear surface of the receiving container and connected to the connection unit for driving the light source unit.Type: ApplicationFiled: September 5, 2008Publication date: July 9, 2009Inventors: Jin-Hee PARK, Bong-Hyun YOU, Jae-Chang CHOI
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Publication number: 20090122476Abstract: A display device including a display module and an information processing device having the same is described herein. The display device includes a display module, a supporting frame, and a fixing frame. The supporting frame supports a rear face of the display module corresponding to a peripheral area, a side face of the display module, and includes a coupling portion used for connecting the fixing frame to an information input device. A rear housing receives the display device. A front housing is connected to the rear housing and has an opening to expose a display screen of the display module.Type: ApplicationFiled: November 5, 2008Publication date: May 14, 2009Inventors: Joo-Yeon Won, Jae-Chang Choi, Sang-soo Kim, Jung-Tae Kang
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Publication number: 20080284940Abstract: A liquid crystal d splay apparatus includes a liquid crystal display panel, a mold frame chassis and a strength-reinforcing member. The liquid crystal display panel displays an image. The mold frame receives the liquid crystal display panel. The chassis is combined with the mold frame to secure an end of the liquid crystal display panel, and includes a first side portion and a coupling hole formed at the first side portion. The strength-reinforcing member is disposed between the first side portion and the mold frame. As a result, a strength of the chassis may be improved, and the to liquid crystal display panel may be prevented from being damaged.Type: ApplicationFiled: February 13, 2007Publication date: November 20, 2008Inventor: Jae-Chang Choi
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Publication number: 20080218655Abstract: The present invention relates to a liquid crystal display and a tablet computer having the same. According to the present invention, there is provided a liquid crystal display, comprising: a liquid crystal display panel for displaying an image; a driving circuit unit connected to the liquid crystal display panel and including a printed circuit board mounted with a circuit component; a top chassis disposed over the liquid crystal display panel; and a fastening member for fastening the printed circuit board of the driving circuit unit to the top chassis.Type: ApplicationFiled: February 15, 2008Publication date: September 11, 2008Inventors: Joo Yeon Won, Sang-Hoon Park, Jae Chang Choi, Young Joo Nam