Patents by Inventor Hyeong Sik Choi
Hyeong Sik 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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Patent number: 9551893Abstract: A curved display apparatus and a multi display system having the same are provided. The curved display apparatus includes a display panel, and a fixation member which fixes the display panel so that the display panel is curved with multiple curvatures.Type: GrantFiled: July 13, 2015Date of Patent: January 24, 2017Assignees: SAMSUNG ELECTRONICS CO., LTD., Samsung Display Co., Ltd.Inventors: Jun-seok An, Dong-wook Kim, Sung-hwan Kim, Jee-su Park, Chan-hong Park, Byung-kook Sim, Jong-cheol Lee, Cheol-se Lee, Hyeong-sik Choi, Byung-wook Ahn, Cheong-hun Lee
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Patent number: 9529137Abstract: A display device includes a display panel, a backlight unit configured to output light to the display panel, and a lens part interposed between the display panel and the backlight unit, and configured to transmit the light output from the backlight unit is transmitted, wherein the backlight unit includes an optical module configured to output the light, and a light guide plate configured to form a light path through which the light that is output from the optical module and incident on the light guide plate is transmitted and to scatter the incident light, the light guide plate including a fixing hole, a first pattern part configured to scatter the incident light output from the optical module, and a second pattern part provided adjacent to the fixing hole.Type: GrantFiled: May 22, 2014Date of Patent: December 27, 2016Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Kil Hong Lee, Dae Hee Lee, Sin Wook Hyung, Young Man Ahn, Hyeong Sik Choi
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Patent number: 9523886Abstract: A backlight unit includes a light source and a lens unit optically coupled to the light source. A surface of the lens unit facing the light source includes areas coated with a reflective material for reflecting light from the light source away from the lens, and a transmissive area for transmitting light from the light source towards ran output surface of the lens. A display device includes a display panel, a light diffuser, the backlight unit and a reflective element, the backlight unit arranged between the light diffuser and the reflective element, and the display panel positioned opposite the backlight unit with respect to the light diffuser.Type: GrantFiled: March 20, 2014Date of Patent: December 20, 2016Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Byoung Jin Cho, Young Chol Lee, Young Man Ahn, Joon Seok Ahn, Nae Won Jang, Hyeong Sik Choi
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Patent number: 9426890Abstract: Disclosed herein is a display apparatus that reduces a magnitude of a tension applied to a flexible PCB when a display panel is provided with a curved surface, and prevents damage of a driving chip. The display apparatus in accordance with exemplary embodiments includes a display panel configured to display an image, a source printed circuit board configured to control the display panel, and a flexible PCB that connects the display panel and the source printed circuit board. A length of at least one side edge of the flexible PCB is formed longer than a minimum length from the display panel to the source printed circuit board.Type: GrantFiled: September 2, 2014Date of Patent: August 23, 2016Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hyo Jae Jang, Chan Hong Park, Jeong Ho Bang, Jong Myung Lee, Sun Weon Jeong, Hyeong Sik Choi
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Patent number: 9335584Abstract: Disclosed is a display device which includes a liquid crystal display configured to display an image, a plurality of backlights which are disposed in a rear area of the liquid crystal display and comprise a plurality of point light sources, a bottom chassis on which the backlights are disposed, and a plurality of reflective devices which are mounted on the bottom chassis and reflect light, which is emitted from a plurality of light sources disposed at corners of the bottom chassis and diffused in a sideward direction, toward the corners of the bottom chassis so as to secure a sufficient amount of light at the corners of the bottom chassis.Type: GrantFiled: June 10, 2014Date of Patent: May 10, 2016Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Nae Won Jang, Young Man Ahn, Dae Hee Lee, Byoung Jin Cho, Hyeong Sik Choi
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Patent number: 9310648Abstract: Provided are a liquid crystal panel assembly having no light guide plate (LGP) and a liquid crystal display apparatus. The liquid crystal panel assembly includes: a light source which generates light; a liquid crystal panel which displays the light generated from the light source as an image; at least one optical film disposed at a rear of the liquid crystal panel; a reflector sheet which is disposed at a rear of the optical film and reflects the light from the light source toward the optical film; a reflector which concentrates the light from the light source; an upper chassis and a lower chassis which house the light source, the liquid crystal panel, the optical film, the reflector sheet, and the reflector therebetween; and a middle chassis installed between the upper chassis and the lower chassis, wherein the reflector and the middle chassis form a single body.Type: GrantFiled: July 24, 2012Date of Patent: April 12, 2016Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Byoung-jin Cho, Young-chol Lee, Jun-seok An, Nae-won Jang, Myung-ryul Jung, Hyeong-sik Choi
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Publication number: 20150346542Abstract: A curved display apparatus and a multi display system having the same are provided. The curved display apparatus includes a display panel, and a fixation member which fixes the display panel so that the display panel is curved with multiple curvatures.Type: ApplicationFiled: July 13, 2015Publication date: December 3, 2015Applicants: SAMSUNG DISPLAY CO., LTD., SAMSUNG ELECTRONICS CO., LTD.Inventors: Jun-seok AN, Dong-wook KIM, Sung-hwan KIM, Jee-su PARK, Chan-hong PARK, Byung-kook SIM, Jong-cheol LEE, Cheol-se LEE, Hyeong-sik CHOI, Byung-wook AHN, Cheong-hun LEE
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Publication number: 20150346552Abstract: A supporting member usable with a backlight unit of an image display apparatus includes a supporting portion that is formed of a transparent material, disposed below a diffuser plate to support the diffuser plate, and includes a first end being in contact with the diffuser plate and two flat side surfaces disposed in parallel to one another and connected to one another at the first end; a base that is formed at a second end of the supporting portion and fixes the supporting portion to an under chassis of the backlight unit; and a reinforcing portion that is disposed on a top surface of the base.Type: ApplicationFiled: August 10, 2015Publication date: December 3, 2015Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Byoung-jin CHO, Young-chol LEE, Hyung-chul KIM, Heong-seog LEE, Hyeong-sik CHOI
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Patent number: 9201266Abstract: A backlight unit is provided which includes: a light guide plate which guides incident light from a lateral side of the light guide plate toward a liquid crystal display (LCD) panel placed in front of the light guide plate; a light source unit which includes a light source which emits the light and a light source supporting member which supports the light source and is arranged adjacent to the lateral side of the light guide plate; a supporting frame which is arranged in the backlight unit; a quantum dot (QD) bar which is arranged between the lateral side of the light guide plate and the light source and changes a color of the light emitted from the light source; and a QD-bar fastening unit which fastens the QD bar to at least one of the light source supporting member and the supporting frame.Type: GrantFiled: May 2, 2012Date of Patent: December 1, 2015Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Gil-tae Hur, Hyeong-sik Choi, Kun-ho Cho, Jeong-phil Seo, Yong-hun Kwon, Kye-hoon Lee, Suk-ju Choi, Young-min Lee
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Publication number: 20150331284Abstract: A display module includes a display panel; a backlight unit which is disposed behind the display panel; a bottom chassis to accommodate the backlight unit; and a reflective sheet which is disposed inside the bottom chassis and configured to reflect a light portion incident thereon toward the display panel. The backlight unit includes LEDs disposed apart from one another in 2D array, and the reflective sheet includes a sheet bottom portion corresponding to a front surface of the bottom chassis, a sheet inclined portion which is obliquely formed to face a rear surface of the display panel, and light adjustment portions which are provided on the sheet inclined portion and configured to adjust the light portion reflected by the sheet inclined portion. Each of the light adjustment portions corresponds to one of the LEDs disposed adjacent to the sheet inclined portion.Type: ApplicationFiled: July 27, 2015Publication date: November 19, 2015Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Byoung Jin CHO, Young Man AHN, Dae Hee LEE, Nae Won JANG, Hyeong Sik CHOI
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Patent number: 9176335Abstract: A display panel, which realizes a 3D image in an active method, includes a first glass on which light is incident, a second glass which is aligned with the first glass and transmits an image, a first liquid crystal layer disposed between the first glass and the second glass and adjusts an amount of the light passing therethrough, and a second liquid crystal layer which is disposed between the second glass and the first liquid crystal layer and realizes the 3D image, wherein, in response to the display panel realizing the 3D image, the second liquid crystal layer is alternately arranged according to a first liquid crystal arrangement which corresponds to a first polarization direction and a second liquid crystal arrangement which corresponds to a second polarization direction which is different from the first polarization direction, so that images passing through the second liquid crystal layer are alternately polarized in the first polarization direction and the second polarization direction.Type: GrantFiled: January 24, 2013Date of Patent: November 3, 2015Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Byoung-jin Cho, Young-chol Lee, Nae-won Jang, Hyeong-sik Choi
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Patent number: 9128326Abstract: A supporting member usable with a backlight unit of an image display apparatus includes a supporting portion that is formed of a transparent material, is disposed below the diffuser plate to support the diffuser plate, and has a first end being in contact with the diffuser plate; and a base that is formed at a second end of the supporting portion and fixes the supporting portion to an under chassis of the backlight unit.Type: GrantFiled: September 14, 2012Date of Patent: September 8, 2015Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Byoung-jin Cho, Young-chol Lee, Hyung-chul Kim, Heong-seog Lee, Hyeong-sik Choi
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Patent number: 9122100Abstract: A display module includes a display panel; a backlight unit which is disposed behind the display panel and configured to emit light toward the display panel; a bottom chassis configured to accommodate the backlight unit; and a reflective sheet which is disposed inside the bottom chassis and configured to reflect a light portion incident thereon toward the display panel. The reflective sheet includes a sheet bottom portion corresponding to a front surface of the bottom chassis, a sheet inclined portion which is obliquely formed to face a rear surface of the display panel, and a light adjustment portion which is provided on the sheet inclined portion and configured to adjust the light portion reflected by the sheet inclined portion.Type: GrantFiled: January 29, 2014Date of Patent: September 1, 2015Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Byoung Jin Cho, Young Man Ahn, Dae Hee Lee, Nae Won Jang, Hyeong Sik Choi
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Publication number: 20150245488Abstract: Disclosed herein is a display apparatus that reduces a magnitude of a tension applied to a flexible PCB when a display panel is provided with a curved surface, and prevents damage of a driving chip. The display apparatus in accordance with exemplary embodiments includes a display panel configured to display an image, a source printed circuit board configured to control the display panel, and a flexible PCB that connects the display panel and the source printed circuit board. A length of at least one side edge of the flexible PCB is formed longer than a minimum length from the display panel to the source printed circuit board.Type: ApplicationFiled: September 2, 2014Publication date: August 27, 2015Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hyo Jae JANG, Chan Hong PARK, Jeong Ho BANG, Jong Myung LEE, Sun Weon JEONG, Hyeong Sik CHOI
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Patent number: 9113553Abstract: A curved display apparatus and a multi display system having the same are provided. The curved display apparatus includes a display panel, and a fixation member which fixes the display panel so that the display panel is curved with multiple curvatures.Type: GrantFiled: May 17, 2013Date of Patent: August 18, 2015Assignees: SAMSUNG ELECTRONICS CO., LTD., Samsung Display Co., Ltd.Inventors: Jun-seok An, Dong-wook Kim, Sung-hwan Kim, Jee-su Park, Chan-hong Park, Byung-kook Sim, Jong-cheol Lee, Cheol-se Lee, Hyeong-sik Choi, Byung-wook Ahn, Cheong-hun Lee
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Patent number: 9097935Abstract: A display apparatus includes a liquid crystal display panel configured to display an image, and a backlight unit configured to emit light to the liquid crystal display panel, wherein the backlight unit includes a bottom chassis comprising an accommodation space configured to accommodate a plurality of light sources, a middle mold provided on the bottom chassis, a diffusing plate provided on the middle mold, and a fixing member provided on an outer surface of the bottom chassis and configured to contact one side of the diffusing plate and prevent movement of the diffusing plate.Type: GrantFiled: February 7, 2014Date of Patent: August 4, 2015Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Sin Wook Hyung, Chang Hwa Baek, Dae Hee Lee, Kyoung Choul Jang, Hyeong Sik Choi
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Patent number: 9081228Abstract: A liquid crystal display apparatus according to an exemplary embodiment of the present inventive concept is provided the liquid crystal display apparatus includes a liquid crystal panel which displays images; backlight unit which provides light to the liquid crystal panel; and an optical sheet unit which is placed between the liquid crystal panel and backlight, wherein the optical sheet unit includes at least one scattering particle optical sheet where scattering particles are provided.Type: GrantFiled: March 18, 2013Date of Patent: July 14, 2015Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Nae-won Jang, Sang-eun Lee, Young-chol Lee, Byoung-jin Cho, Hyeong-sik Choi, Ju-seong Hwang
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Publication number: 20150181201Abstract: An image display device is provided. The image display device includes a light source and a polarizer including a first polarizing region configured to linearly polarize light which is output from the light source and a second polarizing region configured to circularly polarize light which is output from the light source.Type: ApplicationFiled: October 6, 2014Publication date: June 25, 2015Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Keun Bae JEON, Masaru MINAMI, Hyeong Sik CHOI
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Publication number: 20150049283Abstract: A display apparatus and a control method thereof are provided. The display apparatus includes: a power supply which supplies power to elements of the display apparatus; a mirror which is switchable between a mirror mode and a transparency mode; and a controller which controls the power supply. When power is shut off from the mirror, the mirror operates in the mirror mode, and when power is supplied to the mirror, the mirror operates in the transparency mode.Type: ApplicationFiled: March 21, 2014Publication date: February 19, 2015Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Ju-seong HWANG, Kun-ho CHO, Hyeong-sik CHOI
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Publication number: 20150042896Abstract: A display panel includes an upper plate including a first substrate, a first electrode layer formed on an inner surface of the first substrate, and an absorptive polarizing film formed on an outer surface of the first substrate and having a first polarization axis, a lower plate including a second substrate, a second electrode layer formed on an inner surface of the second substrate, and a reflective polarizing film formed on an outer surface of the second substrate and having a second polarization axis perpendicular or parallel to the first polarization axis, an LC layer filled between the upper plate and the lower plate, and an LC driving power supply connected between the first electrode layer and the second electrode layer and configured to selectively provide an LC driving voltage to the LC layer changing a polarization direction of incident light in the LC layer.Type: ApplicationFiled: July 9, 2014Publication date: February 12, 2015Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Won-yong LEE, Hyeong-sik CHOI, Ju-seong HWANG