Patents by Inventor Sung-Joon Bae
Sung-Joon Bae 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: 8921860Abstract: An organic light emitting display device is provided to avoid color change due to a viewing direction. The organic light emitting display includes a light compensation layer having a refractive index different than that of an insulating layer. The organic light emitting display may be disposed at the side to which light emitted from an organic light emitting layer is entered to change the path and phase of light, thereby coinciding cavity peak phases for each wavelength of white light emitted from an organic light emitting unit.Type: GrantFiled: July 13, 2012Date of Patent: December 30, 2014Assignee: LG Display Co., Ltd.Inventors: Shin-Han Kim, Byung-Chul Ahn, Yoon-Heung Tak, Chang-Wook Han, Do-Hyung Kim, Jae-Man Lee, Hong-Seok Choi, Sung-Joon Bae, Seung-Ryong Joung
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Patent number: 8716704Abstract: An organic electroluminescent device including a driving element having a driving gate electrode connected to the switching element, the driving gate electrode formed uniformly on the substrate, a driving source electrode having a first driving source electrode along a first direction and a plurality of second driving source electrodes extending from the first driving source electrode along a second direction crossing the first direction, a driving drain electrode spaced apart from the driving source electrode, the driving drain electrode having a first driving drain electrode along the first direction and a plurality of second driving drain electrodes extending from the first driving drain electrode along the second direction, wherein the plurality of second driving source electrodes alternate with the plurality of second driving drain electrodes, wherein the driving source electrode and the driving drain electrode including an interval therebetween are facing the driving gate electrode.Type: GrantFiled: December 7, 2012Date of Patent: May 6, 2014Assignee: LG Display Co., Ltd.Inventors: Kyung-Man Kim, Doo-Hyun Ko, Sung-Joon Bae
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Patent number: 8587194Abstract: An organic electroluminescent display (OELD) device includes a first substrate having a first unit pixel region including first and second pixel regions; first and second gate lines along a first direction; first and second data lines along a second direction; a switching TFT in the first pixel region; a driving TFT in the first pixel region; a passivation layer including a first contact hole exposing a portion of the driving TFT; a first electrode contacting the driving TFT through the first contact hole; a bank surrounding the second pixel region an organic emitting layer in the second pixel region; and a transparent second electrode on the organic emitting layer and the bank, wherein the second pixel region is a region shifted from the first pixel region such that the second gate line goes across the second pixel region.Type: GrantFiled: October 19, 2009Date of Patent: November 19, 2013Assignee: LG Display Co., Ltd.Inventors: Jae-Yoon Lee, Sung-Joon Bae
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Patent number: 8395569Abstract: The present invention relates to an organic electroluminescent display (OELD) device, more particularly, to a dual panel type OELD device and a method of fabricating the same. The OLED structure has first and second barrier walls having a reverse-taper shape with respect to the first substrate and first and second side surfaces, wherein the walls define novel polymer patterns with varying heights relative to each other.Type: GrantFiled: October 8, 2009Date of Patent: March 12, 2013Assignee: LG Display Co., Ltd.Inventors: Kyung-Hee Min, Sung-Joon Bae, Joon-Suk Lee, Do-Hyung Kim
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Patent number: 8368674Abstract: An organic electroluminescent device including a driving element having a driving gate electrode connected to the switching element, the driving gate electrode formed uniformly on the substrate, a driving source electrode having a first driving source electrode along a first direction and a plurality of second driving source electrodes extending from the first driving source electrode along a second direction crossing the first direction, a driving drain electrode spaced apart from the driving source electrode, the driving drain electrode having a first driving drain electrode along the first direction and a plurality of second driving drain electrodes extending from the first driving drain electrode along the second direction, wherein the plurality of second driving source electrodes alternate with the plurality of second driving drain electrodes, wherein the driving source electrode and the driving drain electrode including an interval therebetween are facing the driving gate electrode.Type: GrantFiled: June 17, 2005Date of Patent: February 5, 2013Assignee: LG Display Co., Ltd.Inventors: Kyung-Man Kim, Doo-Hyun Ko, Sung-Joon Bae
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Publication number: 20130015450Abstract: An organic light emitting display device is provided to avoid color change due to a viewing direction. The organic light emitting display includes a light compensation layer having a refractive index different than that of an insulating layer. The organic light emitting display may be disposed at the side to which light emitted from an organic light emitting layer is entered to change the path and phase of light, thereby coinciding cavity peak phases for each wavelength of white light emitted from an organic light emitting unit.Type: ApplicationFiled: July 13, 2012Publication date: January 17, 2013Inventors: Shin-Han Kim, Byung-Chul Ahn, Yoon-Heung Tak, Chang-Wook Han, Do-Hyung Kim, Jae-Man Lee, Hong-Seok Choi, Sung-Joon Bae, Seung-Ryong Joung
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Patent number: 8147902Abstract: An electro luminescence display device having a display area and a non-display area includes a plurality of display organic light emission layers formed in the display area and a dummy organic light emission layer formed in the non-display area.Type: GrantFiled: January 9, 2006Date of Patent: April 3, 2012Assignee: LG Display Co., Ltd.Inventors: Sung Joon Bae, Hee Suk Pang, Kyung Man Kim
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Patent number: 8087965Abstract: An organic electro-luminance display device includes a first substrate and a second substrate; an array element on the first substrate, the array element including at least one thin film transistor (TFT) in each sub-pixel; a first electrode on the second substrate; a buffer on the first electrode including a first buffer at an outer region partitioning each sub-pixel and a second buffer at a region including a stepped portion of the first buffer, wherein a undercut structure is formed by the first and second buffers; an organic electro-luminescent layer in each sub-pixel partitioned by the second buffer; a second electrode formed on the organic electro-luminescent layer; and a conductive spacer for electrically connecting the TFT to the second electrode.Type: GrantFiled: July 14, 2010Date of Patent: January 3, 2012Assignee: LG Display Co., Ltd.Inventors: Sung Joon Bae, Jae Yoon Lee, Joon Suk Lee
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Patent number: 7999458Abstract: An organic electro luminescence device is presented in which ink forming an organic electro luminescent layer is prevented from overflowing edges of a pixel region. The organic electro luminescent device includes first and second substrates and sub-pixels in the first and second substrates. An array element includes a thin film transistor formed on the first substrate in each sub-pixel. A first electrode is formed at an inner surface of the second substrate. A buffer is formed at an outer region to partition each sub-pixel formed on the first electrode. A first electrode separator is formed on the buffer and a second electrode separator is formed in a region including a stepped portion of the buffer. An organic electro luminescent layer is formed within a region partitioned by the second electrode separator. A second electrode is formed on the second substrate where the organic electro luminescent layer is formed.Type: GrantFiled: June 29, 2005Date of Patent: August 16, 2011Assignee: LG Display Co., Ltd.Inventors: Sung Joon Bae, Jae Yoon Lee, Kyung Man Kim, Joon Suk Lee
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Patent number: 7963816Abstract: Provided is a method of fabricating an organic electro luminescence device, the method comprising: forming a thin film transistor on a substrate; forming a passivation layer and a first electrode on the substrate including the thin film transistor; forming a contact hole exposing an upper surface of a drain electrode of the thin film transistor at a predetermined portion of the first electrode and the passivation layer; forming a buffer layer and a barrier rib on a predetermined portion of an upper surface of the first electrode; forming an organic emission layer within a region defined by the buffer layer; and forming a second electrode on the organic emission layer such that the second electrode is electrically connected with the drain electrode through the contact hole.Type: GrantFiled: December 31, 2009Date of Patent: June 21, 2011Assignee: LG Display Co., Ltd.Inventors: Sung Joon Bae, Jae Yoon Lee
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Patent number: 7963757Abstract: A patterning apparatus for an electroluminescent display includes a molding plate provided with a plurality of convex portions and concave portions; a polymer supplying roller adjacent to the molding plate to apply an electroluminescent material to the molding plate via rotational movement; and a molding roller attached to the molding plate to apply the electroluminescent material on the molding plate to an adjacent substrate via rotational movement.Type: GrantFiled: April 6, 2007Date of Patent: June 21, 2011Assignee: LG Display Co., Ltd.Inventors: Jae Yoon Lee, Sung Joon Bae
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Patent number: 7956530Abstract: An organic electroluminescent display device comprises a substrate, including a pixel region and a non-pixel region at a boundary of the pixel region; a first electrode on the substrate in the pixel region; a separator over the first electrode, the separator located in the non-pixel region, the separator including a first portion having a first width and a second portion having a second width smaller than the first width, the first portion overlapping edges of the first electrode, and the second portion within the non-pixel region; an organic electroluminescent layer over the separator in the pixel region surrounded by the separator; and a second electrode on an entire surface of the organic electroluminescent layer and the separator.Type: GrantFiled: January 25, 2010Date of Patent: June 7, 2011Assignee: LG Display Co., Ltd.Inventors: Sung-Joon Bae, Jin-Ook Kim
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Patent number: 7948164Abstract: An organic electro luminescence device includes: a display region and a non-display region defined in first and second substrates, sub-pixels defined in the display region; an array element including at least one TFT in the display region of the first substrate in each sub-pixel; a first electrode in an inner surface of the second substrate; a buffer in a predetermined region to partition an emission region of each sub-pixel on the first electrode, and an electrode separator on the buffer; an insulating layer in the emission region of each sub-pixel, and a spacer formed on the insulating layer; an organic electro luminescent layer in the emission region of each sub-pixel, the emission region including the insulating layer and the spacer; and a second electrode on the second substrate where the organic electro luminescent layer is formed.Type: GrantFiled: June 30, 2005Date of Patent: May 24, 2011Assignee: LG Display Co., Ltd.Inventors: Sung Joon Bae, Jae Yong Park, Ock Hee Kim, Kwan Soo Kim
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Patent number: 7902753Abstract: An electroluminescent display device includes first and second substrates facing each other and having a pixel region and a non-pixel region; a thin film transistor and an array layer on an inner surface of the first substrate; a first electrode on an inner surface of the second substrate; a buffer layer on the first electrode in the non-pixel region; a shielding pattern on the buffer layer; a separator on the shielding pattern; an emitting layer on the first electrode in the pixel region; a second electrode on the emitting layer; and a connection electrode between the first and second substrates.Type: GrantFiled: June 18, 2009Date of Patent: March 8, 2011Assignee: LG Display Co., Ltd.Inventors: In-Jae Chung, Ki-Yong Kim, Sung-Joon Bae, Jae-Yong Park
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Publication number: 20100315318Abstract: An organic electroluminescent display (OELD) device includes a first substrate having a first unit pixel region including first and second pixel regions; first and second gate lines along a first direction; first and second data lines along a second direction; a switching TFT in the first pixel region; a driving TFT in the first pixel region; a passivation layer including a first contact hole exposing a portion of the driving TFT; a first electrode contacting the driving TFT through the first contact hole; a bank surrounding the second pixel region an organic emitting layer in the second pixel region; and a transparent second electrode on the organic emitting layer and the bank, wherein the second pixel region is a region shifted from the first pixel region such that the second gate line goes across the second pixel region.Type: ApplicationFiled: October 19, 2009Publication date: December 16, 2010Inventors: Jae-Yoon LEE, Sung-Joon BAE
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Publication number: 20100279444Abstract: An organic electro-luminance display device includes a first substrate and a second substrate; an array element on the first substrate, the array element including at least one thin film transistor (TFT) in each sub-pixel; a first electrode on the second substrate; a buffer on the first electrode including a first buffer at an outer region partitioning each sub-pixel and a second buffer at a region including a stepped portion of the first buffer, wherein a undercut structure is formed by the first and second buffers; an organic electro-luminescent layer in each sub-pixel partitioned by the second buffer; a second electrode formed on the organic electro-luminescent layer; and a conductive spacer for electrically connecting the TFT to the second electrode.Type: ApplicationFiled: July 14, 2010Publication date: November 4, 2010Inventors: Sung Joon BAE, Jae Yoon Lee, Joon Suk Lee
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Patent number: 7772763Abstract: An organic electro-luminance display device includes a first substrate and a second substrate; an array element on the first substrate, the array element including at least one thin film transistor (TFT) in each sub-pixel; a first electrode on the second substrate; a buffer on the first electrode including a first buffer at an outer region partitioning each sub-pixel and a second buffer at a region including a stepped portion of the first buffer, wherein a undercut structure is formed by the first and second buffers; an organic electro-luminescent layer in each sub-pixel partitioned by the second buffer; a second electrode formed on the organic electro-luminescent layer; and a conductive spacer for electrically connecting the TFT to the second electrode.Type: GrantFiled: November 29, 2005Date of Patent: August 10, 2010Assignee: LG Display Co., Ltd.Inventors: Sung Joon Bae, Jae Yoon Lee, Joon Suk Lee
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Patent number: 7759860Abstract: An organic electro-luminescence device is provided. First and second substrates are arranged spaced apart from each other by a predetermined distance and sub-pixels are defined in the substrates. An array element has at least one thin film transistor (TFT) formed on an inner surface of the first substrate in sub-pixel unit. A conductive spacer is electrically connected to a drive TFT of the array element. A first electrode for an organic electro-luminescence diode is disposed on an inner surface of the second substrate. An organic electro-luminescence layer and a second electrode for the organic electro-luminescence diode are sequentially formed on the first electrode in sub-pixel unit. The first substrate and the second substrate are misaligned by a predetermined position and attached to each other, such that the conductive spacer is in contact with a conductive spacer contact region provided on the second electrode.Type: GrantFiled: April 29, 2005Date of Patent: July 20, 2010Assignee: LG Display Co., Ltd.Inventors: Sung Joon Bae, Jae Yoon Lee
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Publication number: 20100167435Abstract: Provided is a method of fabricating an organic electro luminescence device, the method comprising: forming a thin film transistor on a substrate; forming a passivation layer and a first electrode on the substrate including the thin film transistor; forming a contact hole exposing an upper surface of a drain electrode of the thin film transistor at a predetermined portion of the first electrode and the passivation layer; forming a buffer layer and a barrier rib on a predetermined portion of an upper surface of the first electrode; forming an organic emission layer within a region defined by the buffer layer; and forming a second electrode on the organic emission layer such that the second electrode is electrically connected with the drain electrode through the contact hole.Type: ApplicationFiled: December 31, 2009Publication date: July 1, 2010Inventors: Sung Joon Bae, Jae Yoon Lee
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Patent number: RE43354Abstract: A driving circuit for an electro-luminescence (EL) cell includes an EL cell, and a supply circuit selectively applying current to the EL cell based on a pixel signal from a data line. A control circuit controls current flow from the supplying circuit to the EL cell such that an amount of current for discriminating between gray scale levels is approximately tens of micro-amps.Type: GrantFiled: April 30, 2004Date of Patent: May 8, 2012Assignee: LG Display Co., Ltd.Inventor: Sung Joon Bae