Patents by Inventor Tae-Hyung Hwang
Tae-Hyung Hwang 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: 20150014693Abstract: A display substrate is provided. The display substrate includes a switching element disposed on a base substrate, wherein the switching element comprises a gate electrode, an active pattern, a source electrode, and a drain electrode. The display substrate also includes a first electrode disposed on a same layer as the gate electrode, wherein the first electrode includes a wire grid pattern; and a second electrode overlapping the first electrode.Type: ApplicationFiled: March 31, 2014Publication date: January 15, 2015Applicant: Samsung Display Co., LTD.Inventors: Yu-Jin LEE, Jun-Ho SONG, Hwa-Yeul OH, Su-Mi LEE, Yeon-Mun JEON, Young-Je CHO, Tae-Hyung HWANG
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Patent number: 8896519Abstract: An electrophoretic display according to an exemplary embodiment of the present invention may include: a first substrate, a first electrode formed on the first substrate, a second electrode spaced apart from the first electrode, a second substrate facing the first substrate, and a plurality of charged particles arranged between the first substrate and the second substrate, pairs of the charged particles having different polarities. Each charged particle has at least two threshold voltages, where the threshold voltages are voltage magnitudes below which a voltage applied across the first and second electrodes does not move the associated charged particle. The pixels may represent any one of colors such as red, green, blue, white, and black by including two charged particles of different colors in one pixel and changing the attractive and repulsive force threshold voltages of each of two charged particles of different colors contained in the pixel.Type: GrantFiled: August 26, 2010Date of Patent: November 25, 2014Assignee: Samsung Display Co., Ltd.Inventors: Seok-Joon Hong, Nam-Seok Roh, Tae-Hyung Hwang, Hyung-Il Jeon, Yu-Jin Kim
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Patent number: 8890861Abstract: In an electrophoretic display apparatus, a first substrate includes a plurality of pixels each including at least two sub-pixels which display colors different from each other, and a second substrate which faces the first substrate and includes a reference electrode corresponding to a boundary between adjacent sub-pixels in each pixel. An electrophoretic material is between the first substrate and the second substrate. A barrier wall is between the first substrate and the second substrate, and defines the pixels.Type: GrantFiled: September 8, 2011Date of Patent: November 18, 2014Assignee: Samsung Display Co., Ltd.Inventors: SonUk Lee, Seonggyu Kwon, Namseok Roh, Tae Hyung Hwang, Joo-Han Bae, Sang-Hee Jang
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Patent number: 8785967Abstract: Disclosed is a crystallization apparatus capable of locally crystallizing amorphous silicon. The crystallization apparatus includes a heat emission part, a support part and a roller. The heat emission part emits heat upon receiving a heat emission source. The support part supports the heat emission part and provides the heat emission source to the heat emission part. The roller receives the heat emission part and has at least one opening to provide heat to a target (e.g., amorphous silicon). Local crystallization is performed without causing damage to a substrate.Type: GrantFiled: October 7, 2009Date of Patent: July 22, 2014Assignee: Samsung Display Co., Ltd.Inventors: Tae-Hyung Hwang, Hyun-Jae Kim, Doh-Kyung Kim, Tae-Hun Jung, Woong-Hee Jeong, Choong-Hee Lee
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Patent number: 8730225Abstract: An electro-wetting display device includes a polar fluid layer, a pixel electrode, a non-polar black fluid layer, a driving electrode, and a color fluid layer. The non-polar black fluid is deformed by a voltage difference between a voltage applied to the pixel electrode and a voltage applied to the polar fluid layer. the non-polar color fluid is deformed by a voltage difference between a voltage applied to the driving electrode and a voltage applied to the polar fluid layer. The driving electrode receives a voltage having a voltage level varied according to a display mode.Type: GrantFiled: August 2, 2011Date of Patent: May 20, 2014Assignee: Samsung Display Co., Ltd.Inventors: Joo-Han Bae, Tae Hyung Hwang, JungWoo Park, Kyungtae Chae, Hyung-II Jeon, Seok-Joon Hong
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Patent number: 8729551Abstract: A flat panel display includes; a first substrate, a white reflective layer disposed on the first substrate, a pixel electrode disposed on the white reflective, a second substrate disposed facing the first substrate, a common electrode disposed on the second substrate, and an electrooptic layer disposed between the pixel electrode and the common electrode, wherein the white reflective layer includes at least one of TiO2 and BaSO4.Type: GrantFiled: March 2, 2011Date of Patent: May 20, 2014Assignee: Samsung Display Co., Ltd.Inventors: Nam-Seok Roh, Jung-Woo Park, Dae-Jin Park, Yu-Jin Kim, Joo-Han Bae, Tae-Hyung Hwang, Seok-Joon Hong
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Patent number: 8717529Abstract: A display apparatus that includes a first substrate, a second substrate, and a thin film transistor. The first substrate includes a fiber reinforced plastic substrate and a color filter layer formed on the fiber reinforced plastic substrate. The second substrate faces the first substrate. The thin film transistor is formed on the first substrate.Type: GrantFiled: August 9, 2012Date of Patent: May 6, 2014Assignee: Samsung Display Co., Ltd.Inventors: Tae-Hyung Hwang, Sang-Il Kim
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Publication number: 20140029080Abstract: An electrowetting display device includes a first base substrate, a second base substrate facing the first base substrate, an electrowetting layer that includes a first fluid and an electrically conducting second fluid that are immiscible with each other, black partition walls disposed on the first base substrate to partition a display area into pixel areas, and an electronic device that applies a voltage to the electrowetting layer to control the electrowetting layer. The partition walls restrict a flow of at least one of the first fluid or the second fluid.Type: ApplicationFiled: December 3, 2012Publication date: January 30, 2014Applicant: Liquavista B.V.Inventor: Tae Hyung Hwang
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Publication number: 20130301108Abstract: An electrowetting display device includes first and second barrier layers which cover first and second electrodes. The electrowetting display device includes a first base substrate which faces a second base substrate, the first electrode on the first base substrate, the first barrier layer which covers the first electrode, the second electrode on the second base substrate, the second barrier layer which covers the second electrode, a barrier wall between the first base substrate and the second base substrate, and an electrowetting layer between the first base substrate and the second base substrate. The barrier wall defines a pixel area corresponding to the first electrode, and the electrowetting layer is in the pixel area. The electrowetting layer includes a polar fluid and a non-polar fluid which are separated from each other.Type: ApplicationFiled: February 11, 2013Publication date: November 14, 2013Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Tae Woo LIM, Keunkyu SONG, Jihoon YANG, Tae Hyung HWANG
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Patent number: 8542428Abstract: An electrophoretic display device according to an exemplary embodiment of the present invention includes: a lower substrate; an upper substrate; a thin film transistor disposed on the lower substrate; a pixel electrode connected to the thin film transistor; an electronic ink layer positioned between the lower substrate and the upper substrate; a plurality of partitions disposed on the upper substrate; a reflecting layer disposed on the partitions; a color filter disposed between the partitions.Type: GrantFiled: July 15, 2011Date of Patent: September 24, 2013Assignee: Samsung Display Co., Ltd.Inventors: Ju-Han Bae, Byeong-Jin Lee, Nam-Seok Roh, Myung-Hwan Kim, Sang-Il Kim, Tae-Hyung Hwang, Son-Uk Lee, Yu Jin Kim
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Patent number: 8514479Abstract: An electro-wetting display includes a first substrate, a second substrate which faces the first substrate, and a fluid layer between the first and second substrates. The first substrate includes a plurality of gate lines, a plurality of data lines, and a plurality of pixels connected to the gate lines and the data lines. A fluid layer includes a first fluid layer having a color and a second fluid layer which is transparent. Each pixel includes a switching device, a pixel electrode in connection with the switching device, and a spacing electrode. The switching device is connected to an i-th gate line of the gate lines and a j-th data line of the data lines. The spacing electrode is adjacent to a side of the pixel electrode and in connection with a (i?1)th gate line of the gate lines.Type: GrantFiled: November 10, 2011Date of Patent: August 20, 2013Assignee: Samsung Display Co., Ltd.Inventors: Joo-Han Bae, Tae Hyung Hwang, Kyungtae Chae, Sang-Myoung Lee, Seok-Joon Hong
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Patent number: 8476634Abstract: A display device includes a flexible panel and a cover member. The flexible panel includes a first substrate and a second substrate. The first substrate includes a first support layer in which an organic insulation layer and an inorganic insulation layer are stacked thereon, and a thin-film transistor and a pixel electrode disposed on the first support layer. The second substrate is opposite to the first substrate. The second substrate includes an organic insulation layer and a second support layer on which the inorganic insulation layer is deposited. The cover member covers an outer surface of the flexible panel. Thus, a display device is manufactured by using a support layer on which an organic insulation layer and an inorganic insulation layer are coated as a base substrate, so that defects generated in a manufacturing process may be prevented.Type: GrantFiled: October 19, 2010Date of Patent: July 2, 2013Assignee: Samsung Display Co., Ltd.Inventors: Hyung-Il Jeon, Dae-Jin Park, Tae-Hyung Hwang
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Publication number: 20130083390Abstract: A display substrate including a base substrate, a plurality of pixel electrodes and a plurality of sub pixel electrodes. The pixel electrodes are formed on the base substrate, are spaced apart from each other, and are electrically connected with a plurality of transistors, respectively. The sub pixel electrodes are disposed between the pixel electrodes, and are electrically connected with a thin-film transistor (TFT). Thus, quality of an image displayed by the display apparatus may be enhanced.Type: ApplicationFiled: May 11, 2012Publication date: April 4, 2013Applicant: Samsung Display Co., Ltd.Inventors: Tae-Hyung HWANG, Joo-Han BAE, Joon-Youp KIM
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Patent number: 8383449Abstract: A thin film transistor array panel includes a substrate, a plurality of first and second signal lines crossing each other on the substrate, source electrodes connected to the first signal lines, drain electrodes connected to the second signal lines, pixel electrodes connected to the drain electrodes, a first partition formed on the source and drain electrodes and having a first opening, wherein a lower width of the first opening is wider than an upper width of the first opening, an organic semiconductor formed in the first opening and at least overlapping the portions of the source electrode and the drain electrode, and a gate electrode connected to the second signal line and at least overlapping the portion of the organic semiconductor.Type: GrantFiled: August 16, 2010Date of Patent: February 26, 2013Assignee: Samsung Display Co., Ltd.Inventors: Keun-Kyu Song, Tae-Young Choi, Tae-Hyung Hwang, Seung-Hwan Cho
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Publication number: 20120329185Abstract: A display apparatus that includes a first substrate, a second substrate, and a thin film transistor. The first substrate includes a fiber reinforced plastic substrate and a color filter layer formed on the fiber reinforced plastic substrate. The second substrate faces the first substrate. The thin film transistor is formed on the first substrate.Type: ApplicationFiled: August 9, 2012Publication date: December 27, 2012Inventors: Tae-Hyung HWANG, Sang-Il KIM
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Publication number: 20120298182Abstract: A flexible solar cell including a flexible substrate; a first electrode on the flexible substrate; a second electrode on the flexible substrate, the second electrode being spaced apart from the first electrode; a photoelectric conversion element, one side of the photoelectric conversion element being connected to the first electrode and another side of the photoelectric conversion element being connected to the second electrode; and a reflective layer between the flexible substrate and the photoelectric conversion element, the reflective layer including at least one recessed portion, and being configured to reflect incident light toward the photoelectric conversion element.Type: ApplicationFiled: August 6, 2012Publication date: November 29, 2012Inventor: Tae-Hyung HWANG
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Publication number: 20120280958Abstract: In an electrophoretic display apparatus, a first substrate includes a plurality of pixels each including at least two sub-pixels which display colors different from each other, and a second substrate which faces the first substrate and includes a reference electrode corresponding to a boundary between adjacent sub-pixels in each pixel. An electrophoretic material is between the first substrate and the second substrate. A barrier wall is between the first substrate and the second substrate, and defines the pixels.Type: ApplicationFiled: September 8, 2011Publication date: November 8, 2012Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: SonUk LEE, SEONGGYU KWON, NAMSEOK ROH, TAE HYUNG HWANG, Joo-Han BAE, Sang-Hee JANG
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Patent number: 8304280Abstract: A thin film transistor array panel includes a substrate, a plurality of first and second signal lines crossing each other on the substrate, source electrodes connected to the first signal lines, drain electrodes connected to the second signal lines, pixel electrodes connected to the drain electrodes, a first partition formed on the source and drain electrodes and having a first opening, wherein a lower width of the first opening is wider than an upper width of the first opening, an organic semiconductor formed in the first opening and at least overlapping the portions of the source electrode and the drain electrode, and a gate electrode connected to the second signal line and at least overlapping the portion of the organic semiconductor.Type: GrantFiled: August 16, 2010Date of Patent: November 6, 2012Assignee: Samsung Display Co., Ltd.Inventors: Keun-Kyu Song, Tae-Young Choi, Tae-Hyung Hwang, Seung-Hwan Cho
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Publication number: 20120262774Abstract: An electro-wetting display includes a first substrate, a second substrate which faces the first substrate, and a fluid layer between the first and second substrates. The first substrate includes a plurality of gate lines, a plurality of data lines, and a plurality of pixels connected to the gate lines and the data lines. A fluid layer includes a first fluid layer having a color and a second fluid layer which is transparent. Each pixel includes a switching device, a pixel electrode in connection with the switching device, and a spacing electrode. The switching device is connected to an i-th gate line of the gate lines and a j-th data line of the data lines. The spacing electrode is adjacent to a side of the pixel electrode and in connection with a (i?1)th gate line of the gate lines.Type: ApplicationFiled: November 10, 2011Publication date: October 18, 2012Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Joo-Han BAE, TAE HYUNG HWANG, KYUNGTAE CHAE, Sang-Myoung LEE, Seok-Joon HONG
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Patent number: 8269942Abstract: A display apparatus that includes a first substrate, a second substrate, and a thin film transistor. The first substrate includes a fiber reinforced plastic substrate and a color filter layer formed on the fiber reinforced plastic substrate. The second substrate faces the first substrate. The thin film transistor is formed on the first substrate.Type: GrantFiled: March 17, 2009Date of Patent: September 18, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Tae-Hyung Hwang, Sang-Il Kim