Patents by Inventor Hee-Wook Do
Hee-Wook Do 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: 11950383Abstract: A display apparatus according to a concept of the disclosure includes: a display panel configured to display an image in a front direction; a top chassis positioned in a front direction of the display panel; a bottom chassis positioned in a rear direction of the display panel; a rear cover covering a rear side of the bottom chassis; and a stand member being accommodatable in the rear cover and selectively coupled with a rear surface of the rear cover, wherein the rear cover includes an accommodating portion in which the stand member is accommodated and a coupling portion coupled with the stand member, and the stand member includes an inserting protrusion which is inserted into the accommodating portion and the coupling portion.Type: GrantFiled: August 27, 2019Date of Patent: April 2, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hee-Bong Kim, Dong Wook Kim, Ji-Gwang Kim, Tae-Hun Kim, Yong Gu Do, Jeong Woo Park, Gil Jae Lee, Sang Young Lee, Pil Kwon Jung, Su-An Choi
-
Patent number: 10073297Abstract: A liquid crystal display includes a liquid crystal display panel having a first substrate and a second substrate. An upper polarizer is disposed on an outer surface of the first substrate. A viewing angle control film is disposed on the upper polarizer. The viewing angle control film includes a polarizing layer having a transmission axis substantially parallel to a transmission axis of the upper polarizer and a phase retardation layer including a birefringence material having an optical axis with a poloidal angle of about 40 degrees to about 75 degrees.Type: GrantFiled: April 9, 2015Date of Patent: September 11, 2018Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hee Wook Do, Seon-Ah Cho
-
Patent number: 9964798Abstract: A polarizer includes a first laminated structure having a first layer with a first refractive index and a second layer with a second refractive index, wherein the first and second refractive indices are different from each other. A buffer layer is disposed on the first laminated structure. A second laminated structure in the polarizer has a third layer with a third refractive index and a fourth layer with a fourth refractive index, wherein the third and fourth refractive indices are different from each other.Type: GrantFiled: August 3, 2015Date of Patent: May 8, 2018Assignee: Samsung Display Co., Ltd.Inventors: Boo-Kan Ki, Gwan Young Na, Hee Wook Do, Kwang-Hyun Kim, Dae Won Kim, Teck Soo Kim, Seung Beom Park, Duck Jong Suh, Na Young Shin, Sang-Gu Lee, Ji-Hoon Kim
-
Patent number: 9466248Abstract: A LCD and a method of driving the LCD are provided. The LCD includes first and second gate lines extending in a first direction, a data line insulated from the first gate line and crossing the first gate line, a pixel electrode including first and second sub-pixel electrodes, the pixel electrode being disposed in a pixel having a long side in the first direction, a first thin film transistor (TFT) connected to the first gate line, the data line, and the first sub-pixel electrode, a second TFT connected to the first gate line, the data line, and the second sub-pixel electrode, and a third TFT connected to the second gate line, the second sub-pixel electrode, and a charge-sharing capacitor, the charge-sharing capacitor sharing a data voltage applied to the second sub-pixel electrode.Type: GrantFiled: August 14, 2013Date of Patent: October 11, 2016Assignee: Samsung Display Co., Ltd.Inventors: Hye-ran You, Seung-beom Park, Yoon-sung Um, Jin-won Park, Hee-wook Do, Hoon Kim
-
Patent number: 9436034Abstract: A display panel includes a first substrate, a second substrate, a liquid crystal layer, a first polarizer, a second polarizer and a viewing angle control layer. The second substrate faces the first substrate. A liquid crystal layer is disposed between the first substrate and the second substrate. A first polarizer is disposed on a lower surface of the first substrate and includes a first polarizing layer and a second polarizing layer stacked on each other. A second polarizer is disposed on an upper surface of the second substrate. A viewing angle control layer is disposed on the first polarizer and is configured to control a viewing angle of a column direction of the display panel.Type: GrantFiled: September 4, 2013Date of Patent: September 6, 2016Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Sang-Jae Kim, Boo-Kan Ki, Ji-Hye Kim, Hee-Wook Do, Jae-Won Park, Duck-Jong Suh, Jung-Hun Lee, Hyoung-Joo Lee, Seon-Ah Cho, Hyo-Sung Hong
-
Patent number: 9348075Abstract: A method of manufacturing a polarizing plate includes fabricating a base film, dyeing the base film by using iodine, stretching the base film to form a polarizing film, firstly drying the polarizing film at a first temperature, and secondly drying the polarizing film while sequentially increasing a temperature from the first temperature to a second temperature higher than the first temperature. The polarizing plate and a liquid crystal display including the same are manufactured through the above method.Type: GrantFiled: August 5, 2010Date of Patent: May 24, 2016Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Duckjong Suh, Jeonguk Heo, Hee Wook Do, Jung-Hun Lee, Boo-Kan Ki, Min Oh Choi, Sang-Gu Lee
-
Publication number: 20150346532Abstract: A liquid crystal display includes a liquid crystal display panel having a first substrate and a second substrate. An upper polarizer is disposed on an outer surface of the first substrate. A viewing angle control film is disposed on the upper polarizer. The viewing angle control film includes a polarizing layer having a transmission axis substantially parallel to a transmission axis of the upper polarizer and a phase retardation layer including a birefringence material having an optical axis with a poloidal angle of about 40 degrees to about 75 degrees.Type: ApplicationFiled: April 9, 2015Publication date: December 3, 2015Inventors: Hee Wook Do, Seon-ah Cho
-
Publication number: 20150268509Abstract: A liquid crystal display includes: a liquid crystal panel which displays an image on a surface thereof; two polarizing films disposed on opposing surfaces of the liquid crystal panel, respectively; two compensation films disposed between the liquid crystal panel and the two polarizing films, respectively; two protective films disposed on outer surfaces of the two polarizing films, respectively, and an anti-glare layer disposed on the two protective film in a direction of displaying the image.Type: ApplicationFiled: January 22, 2015Publication date: September 24, 2015Inventors: Kyeongha KIM, Min Oh CHOI, Boo-Kan KI, Hee Wook DO, SEUNGBEOM PARK, YongHwan SHIN
-
Patent number: 9116392Abstract: A liquid crystal display including a twisted nematic liquid crystal panel and first and second substrates with the twisted nematic liquid crystal panel arranged therebetween. A first biaxial retardation compensation film faces the first substrate and a second biaxial retardation compensation film faces the first biaxial retardation compensation film with the twisted nematic liquid crystal panel arranged therebetween.Type: GrantFiled: April 2, 2012Date of Patent: August 25, 2015Assignee: Samsung Display Co., Ltd.Inventors: Min Oh Choi, Hee Wook Do, Duckjong Suh
-
Patent number: 9097933Abstract: A polarizer includes a reflective polarizer main body and an Rth compensation layer. The reflective polarizer main body includes a repetitively laminated structure, the repetitively laminated structure including two layers of different refractive indices repetitively disposed on one another. The Rth phase compensation layer is disposed at one side of the reflective polarizer main body. The Rth phase compensation layer is configured to compensate for a phase difference in an Rth direction.Type: GrantFiled: March 18, 2013Date of Patent: August 4, 2015Assignee: Samsung Display Co., Ltd.Inventors: Boo-Kan Ki, Gwan Young Na, Hee Wook Do, Kwang-Hyun Kim, Dae Won Kim, Teck Soo Kim, Seung Beom Park, Duck Jong Suh, Na Young Shin, Sang-Gu Lee, Ji-Hoon Kim
-
Patent number: 9019438Abstract: A 3D image display apparatus featuring a new polarization system is introduced which minimizes crosstalk between stereoimages. The polarization system includes a shutter panel that shifts the phase of an incident light, a polarizing film disposed between the shutter panel and an observer, a first retardation film disposed between the shutter panel and the polarizing film, a second retardation film disposed between the polarizing film and the first retardation film to correspond to the left eye of the observer, and a third retardation film disposed between the polarizing film and the first retardation film to correspond to the right eye of the observer.Type: GrantFiled: May 4, 2012Date of Patent: April 28, 2015Assignee: Samsung Display Co., Ltd.Inventors: Sang-Gu Lee, Hee Wook Do, Tecksoo Kim, Seungbeom Park, DuckJong Suh, Min Oh Choi
-
Patent number: 9001283Abstract: Provided is a shutter panel including a first substrate on which a plurality of electric field forming electrodes are parallel to each other, a second substrate opposed to the first substrate, and a liquid crystal layer disposed on the first and second substrates. Each of the electric field forming electrodes has both side surfaces facing the adjacent electric field forming electrodes, and both side surfaces are provided with protrusion parts protruding toward the adjacent electric field forming electrodes.Type: GrantFiled: September 23, 2011Date of Patent: April 7, 2015Assignee: Samsung Display Co., Ltd.Inventors: Min Oh Choi, Hee Wook Do, Seungbeom Park, Sang-Gu Lee, Seunghan Jo
-
Patent number: 8958034Abstract: A liquid crystal display includes a liquid crystal panel, a polarizing plate on a surface of the liquid crystal panel and having a polarizing axis; and a compensation film between the liquid crystal panel and the polarizing plate, and having an optical axis at which light passes through the compensation film. When a surface of the compensation film is referred to as a x-y plane, a plane passing through an x-axis and vertical to the optical axis of the compensation film is referred to as an x-y? plane. A first retardation value (Ro?) of the compensation film is (nx?ny?)d, and a second retardation value (Rth?) is [(nx+ny?)/2?nz?]d, and the first and second retardation values (Ro?) and (Rth?) satisfy the following Formula of 0.92?Rth?/Ro??4.75, where ānā denotes a refractive index and ādā denotes a thickness of the compensation film in a z-axis direction.Type: GrantFiled: April 5, 2013Date of Patent: February 17, 2015Assignee: Samsung Display Co., Ltd.Inventors: Min Oh Choi, Hee Wook Do, Kyeongha Kim, Duckjong Suh, Tecksoo Kim, Seungbeom Park, Sang-Gu Lee
-
Patent number: 8937697Abstract: In the optical plate and a method of manufacturing the optical plate, a display apparatus and a method of manufacturing the display apparatus, an optical plate is formed on a polarizing plate transmitting polarized light of incident light, and includes a phase delaying layer having first and second patterns. The first pattern delays a phase of the polarized light by 3?/4 and the second pattern delays the phase of the polarized light by ?/4. Accordingly, a process of manufacturing the display apparatus may be simplified, and a thickness of the display apparatus may be decreased.Type: GrantFiled: June 22, 2011Date of Patent: January 20, 2015Assignee: Samsung Display Co., Ltd.Inventors: Hee-Wook Do, Duck-Jong Suh, Kyeong Hyeon Kim, Jeong-Uk Heo
-
Patent number: 8902392Abstract: A TFT array is disclosed that includes a substrate, a gate line, a data line; and a pixel, wherein the pixel comprises a first pixel electrode portion comprising a plurality of spaced apart first electrode lines, the first pixel electrode portion having an associated TFT coupled to the first electrode portion, a second pixel electrode portion comprising a plurality of spaced apart second electrode lines, the second pixel electrode portion capacitively coupled with the first pixel electrode portion, wherein a width of each of the first electrode lines of the first pixel electrode portion is narrower than a width of each of the second electrode lines of the second pixel electrode portion, and an interval between adjacent first electrode lines of the first pixel electrode portion is smaller than an interval between adjacent second electrode lines of the second pixel electrode portion.Type: GrantFiled: August 24, 2012Date of Patent: December 2, 2014Assignee: Samsung Display Co., Ltd.Inventors: Seon-Ah Cho, Ji-Won Sohn, Hee-Wook Do, Jun-Hee Na
-
Patent number: 8867003Abstract: A liquid crystal display device including a first substrate including a pixel electrode, a second substrate facing the first substrate and including a common electrode, and a liquid crystal layer interposed between the first substrate and the second substrate. The first substrate includes a storage capacitive line. The liquid crystal display device further includes a domain forming member that is formed over a first region corresponding to the storage capacitive line and a second region adjacent to the first region. The domain forming member is formed with irregular parts including a first irregular part having an enlarged width, a second irregular part having a reduced width, and an external irregular part, which is closest to the first region of the irregular parts formed in the second region and has an enlarged width.Type: GrantFiled: November 26, 2007Date of Patent: October 21, 2014Assignee: Samsung Display Co., Ltd.Inventors: Seung-hoo Yoo, Hee-wook Do, Mee-hye Jung, Sung-hoon Yang, Hyun-cheol Moon, Hye-ran You
-
Patent number: 8836874Abstract: A three-dimensional image display apparatus includes a display panel configured to display an image and a shutter panel configured to separate the image into a left-eye image and a right-eye image. The shutter panel includes a first thin-film substrate disposed adjacent to the display panel, a second thin-film substrate facing the first substrate, and a liquid crystal layer disposed between the first substrate and the second substrate. The first substrate is disposed between the second substrate and the display panel.Type: GrantFiled: July 6, 2012Date of Patent: September 16, 2014Assignee: Samsung Display Co., Ltd.Inventors: Hee Wook Do, Seungbeom Park, Duckjong Suh, Sang-Gu Lee, Jieun Jang, Min Oh Choi
-
Patent number: 8803777Abstract: In a display apparatus having a plurality of pixel parts, each pixel part receives a data signal in response to a present gate signal and charges first and second pixel voltages having the same voltage level. A plurality of voltage controllers includes a level-down part to lower a voltage level of the second pixel voltage using a previous pixel voltage charged in a previous frame in response to a next gate signal and a level-up part to receive the lowered second pixel voltage in response to the next gate signal to boost up a voltage level of the first pixel voltage.Type: GrantFiled: March 29, 2013Date of Patent: August 12, 2014Assignee: Samsung Display Co., Ltd.Inventors: Hee-Wook Do, Seung-Beom Park, Hoon Kim, Hye-Ran You, Jian Gang Lu, Hee-Seop Kim, Young-Chol Yang, Seoung-Hoon Lee
-
Publication number: 20140198282Abstract: A polarizer includes a polyvinyl alcohol (PVA) layer, a supporting layer, and a compensation layer. The supporting layer is disposed on the PVA layer. The supporting layer includes a cyclic olefin polymer (COP). The compensation layer is disposed on the supporting layer. The compensation layer includes discotic liquid crystal. The refractive index of the supporting layer is between 1.49 and 1.55. The refractive index of the compensation layer is between 1.50 and 1.60.Type: ApplicationFiled: December 13, 2013Publication date: July 17, 2014Applicant: Samsung Display Co., Ltd.Inventors: Min Oh CHOI, Hee Wook DO, Boo-Kan KI, Kyeong Ha KIM, Teck Soo KIM, Sang-Gu LEE
-
Publication number: 20140146273Abstract: A display panel includes a first substrate, a second substrate, a liquid crystal layer, a first polarizer, a second polarizer and a viewing angle control layer. The second substrate faces the first substrate. A liquid crystal layer is disposed between the first substrate and the second substrate. A first polarizer is disposed on a lower surface of the first substrate and includes a first polarizing layer and a second polarizing layer stacked on each other. A second polarizer is disposed on an upper surface of the second substrate. A viewing angle control layer is disposed on the first polarizer and is configured to control a viewing angle of a column direction of the display panel.Type: ApplicationFiled: September 4, 2013Publication date: May 29, 2014Applicant: Samsung Display Co., Ltd.Inventors: SANG-JAE KIM, Boo-Kan Ki, Ji-Hye Kim, Hee-Wook Do, Jae-Won Park, Duck-Jong Suh, Jung-Hun Lee, Hyoung-Joo Lee, Seon-Ah Cho, Hyo-Sung Hong