Patents by Inventor Hyeon Bum LEE
Hyeon Bum LEE 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: 20230172026Abstract: A display device according to an embodiment includes a light emitting element disposed on a substrate, and including a first electrode, an emission layer, and a second electrode; a low-reflective layer disposed on the light emitting element, and including an inorganic material; an encapsulation layer positioned on the low-reflective layer; a reflection adjustment layer positioned on the encapsulation layer; a capping layer positioned on the reflection adjustment layer; and an overcoat layer positioned on the capping layer.Type: ApplicationFiled: July 14, 2022Publication date: June 1, 2023Applicant: Samsung Display Co., LTD.Inventor: Hyeon Bum LEE
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Publication number: 20230094620Abstract: A display device according to an embodiment includes: a substrate; a light emitting element which is disposed on the substrate, and includes a first electrode, an emission layer, and a second electrode; a reflective layer which is disposed on the light emitting element, and includes an inorganic material; an encapsulation layer which is disposed on the reflective layer; a light blocking layer which is disposed on the encapsulation layer, and defines an opening overlapping the emission layer in a plan view; a reflection adjusting layer which is disposed on the light blocking layer; and a first organic layer which is disposed on the reflection adjusting layer, and defines an opening overlapping the emission layer in the plan view.Type: ApplicationFiled: March 29, 2022Publication date: March 30, 2023Inventors: Hyeon Bum LEE, Chi Wook AN, Jung-Hyun CHO
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Patent number: 11610961Abstract: A display device includes a transistor disposed on a substrate and including a gate electrode, a channel region, a source region, and a drain region; a first insulating layer disposed on the transistor; a drain electrode that electrically contacts the drain region through an opening formed in the first insulating layer; a connection electrode disposed on the drain electrode and electrically contacting the drain electrode; a second insulating layer disposed on the first insulating layer, an upper surface of the second insulating layer and an upper surface of the connection electrode forming a flat surface that is parallel to the substrate; a pixel electrode disposed on the flat surface and electrically contacting an upper surface of the connection electrode; an emission layer disposed on the pixel electrode; and a common electrode disposed on the emission layer.Type: GrantFiled: November 9, 2020Date of Patent: March 21, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventor: Hyeon Bum Lee
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Publication number: 20230066997Abstract: A display device including: a display panel including first and second pixels a substrate; and a touch sensor on the display panel, wherein the touch sensor includes: sensor patterns on the display panel; bridge patterns connected to the sensor patterns; a first light blocking pattern on the sensor patterns, wherein the first light blocking pattern is provided for each of the first pixels the first light blocking pattern including a first opening corresponding to an emission area of each of the first pixels; and a second light blocking pattern located under the first light blocking pattern, wherein the second light blocking pattern is provided for each of the first pixels, the second light blocking pattern including a second opening to correspond to the emission area of each of the first pixels, and wherein the first and second light blocking patterns have the same planar shape.Type: ApplicationFiled: June 9, 2022Publication date: March 2, 2023Inventors: Hyeon Bum Lee, Chi Wook An
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Patent number: 11552132Abstract: A display device includes a base substrate having a main area, a sub-area, and a bending area. The main area includes pixels that each include a thin film transistor having a semiconductor layer, a gate electrode, a source electrode and a drain electrode. The display device includes a first insulating layer, a first conductive layer and a second insulating layer. The bending area includes a bending organic layer in a bending open portion. A second conductive layer is disposed on the second insulating layer and includes a source connection electrode. An encapsulation layer covers a light emitting element disposed on the second conductive layer for each of the pixels. A touch layer and a color filter layer are disposed on the encapsulation layer. The color filter layer includes a plurality of first color patterns overlapping the source connection electrode in the bending area that are separated from each other.Type: GrantFiled: September 29, 2020Date of Patent: January 10, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hyeon Bum Lee, Beohm Rock Choi, Jun Hyuk Woo
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Publication number: 20220415993Abstract: A light emitting display device includes first and second pixel circuit portions, each having a transistor with a polycrystalline semiconductor and a transistor with an oxide semiconductor, and first and second light emitting diodes including first and second anodes connected with the first and second pixel circuit portions, respectively. An encapsulation layer covers the first and second pixel circuit portions and the first and second light emitting diodes. A light blocking layer includes first and second light blocking layer openings that are disposed on the encapsulation layer and overlap the first and second anodes, respectively. First and second color filters are disposed in the first and second light blocking layer openings, wherein first and second expansion portions corresponding to the first and second anodes are disposed in a first and second conductive layers disposed first down from the first anode and second down from the second anode, respectively.Type: ApplicationFiled: March 16, 2022Publication date: December 29, 2022Inventors: Min Yeul RYU, Jun Hee LEE, Hyeon Bum LEE, Seong Min WANG
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Publication number: 20220415980Abstract: A light emitting display device includes: a flexible substrate including a display area and a peripheral area having a bending area. The display area includes: a plurality of inorganic layers; first and second organic layers that are disposed on the plurality of inorganic layers; a black pixel defining layer that is disposed on the second organic layer; and a spacer that is disposed on the black pixel defining layer. In the bending area, the plurality of inorganic layers include a first opening formed at a position corresponding to the bending area. The first opening is filled with the first organic layer, the second organic layer is disposed on the first organic layer, the black pixel defining layer includes a second opening at a position corresponding to the bending area, and the second opening is filled with an organic layer for the spacer, formed of a same material as the spacer.Type: ApplicationFiled: March 20, 2022Publication date: December 29, 2022Inventors: Hyeon Bum LEE, Seong Min Wang, Chi Wook An
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Publication number: 20220416216Abstract: A display device includes an organic layer, an anode, a pixel defining layer, a cathode, a light emitting layer, a light blocking layer, a color filter, and a sensing electrode. The organic layer includes an anode-connecting opening. The anode is disposed on the organic layer and is partially disposed inside the anode-connecting opening. The pixel defining layer includes an anode-exposing opening that exposes the anode. The cathode overlaps the anode. The light emitting layer is between the anode and the cathode. The light blocking layer overlaps the cathode and includes a blocking layer opening. The color filter fills the blocking layer opening. The sensing electrode is at least partially covered by the light blocking layer. The anode-connecting opening overlaps with each of the sensing electrode, the pixel defining layer, and the light blocking layer in a plan view of the display device.Type: ApplicationFiled: December 30, 2021Publication date: December 29, 2022Inventors: Jun Hyuk WOO, Hyeon Bum LEE, Yeong Ho LEE, Ha Seok JEON
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Publication number: 20220367585Abstract: A display device includes a pixel electrode, a wall layer, an emission layer, a touch electrode, and a light blocking member. The wall layer includes an opening exposing the pixel electrode. The emission layer overlaps the pixel electrode. The light blocking member overlaps the touch electrode and includes a first opening and a second opening each exposing the emission layer. A first perimeter section of the first opening is spaced from a first perimeter section of the opening by a first distance in a first direction in a plan view of the display device. A second perimeter section of the first opening is spaced from a second perimeter section of the opening by a second distance in a second direction in the plan view. The second distance is equal to the first distance. The second direction is at 45 degrees relative to the first direction.Type: ApplicationFiled: November 15, 2021Publication date: November 17, 2022Inventors: Hyeon Bum LEE, Hyun Duck CHO, Chi Wook AN
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Patent number: 11502142Abstract: A display device includes a substrate; a transistor on the substrate; a first electrode electrically connected to the transistor; a pixel defining layer on the first electrode, the pixel defining layer including a pixel opening overlapping the first electrode; an emission layer and a second electrode overlapping the first electrode; a touch electrode on the second electrode; a first low refraction layer and a second low refraction layer overlapping the touch electrode; and a high refraction layer on the second low refraction layer. The first low refraction layer includes a first opening. The second low refraction layer includes a second opening. The first opening, the second opening, and the pixel opening have different widths in a first diagonal direction.Type: GrantFiled: May 14, 2021Date of Patent: November 15, 2022Assignee: Samsung Display Co., Ltd.Inventor: Hyeon Bum Lee
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Publication number: 20220254850Abstract: A display device includes a base substrate which is flexible, first and second active patterns disposed on the base substrate, an inorganic insulating layer disposed on the first and second active patterns and defining an opening area, a first organic insulating pattern disposed inside the opening area, a bridge electrode disposed on the first organic insulating pattern, a second organic insulating layer disposed on the bridge electrode, a fourth organic insulating layer disposed on the second organic insulating layer, first and second pixel electrodes disposed on the fourth organic insulating layer and electrically connected to the first and second active patterns, respectively, and a third organic insulating pattern disposed between the second organic insulating layer and the fourth organic insulating layer, overlapping the second pixel electrode, and not overlapping the first pixel electrode.Type: ApplicationFiled: January 17, 2020Publication date: August 11, 2022Inventors: Hyoeng-Ki KIM, Hyeon-Bum LEE, Kwang-Woo PARK, Jin-Whan JUNG, Jong-Beom HONG
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Publication number: 20220199699Abstract: Some embodiments provide a display device including a substrate having an opening area, a peripheral area surrounding the opening area, and a display area surrounding the peripheral area, a transistor and a light emitting element on the substrate, an encapsulation layer on the light emitting element, a first touch insulating layer on the encapsulation layer, an overcoat layer on the first touch insulating layer, and defining a first opening, and a cover layer filling the first opening, wherein at least one of the overcoat layer and the cover layer extends from the display area to the peripheral area, and wherein the substrate includes a depression pattern that is filled by the overcoat layer or the cover layer.Type: ApplicationFiled: August 4, 2021Publication date: June 23, 2022Inventors: Hyeon Bum LEE, Won Hak CHOI, Kang Wook HEO
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Patent number: 11362159Abstract: A display device includes a display substrate including a flat main region including a plurality of pixels, a flat subsidiary region, and a bending region disposed between the flat main region and the flat subsidiary region; a first layer disposed on the display substrate, the first layer including a bending opening portion in the bending region exposing the bending region of the display substrate; a bending organic layer disposed on the bending region exposed by the bending opening portion of the first layer; a plurality of light-emitting elements disposed on the first layer in the pixels, respectively, wherein the plurality of light-emitting elements includes a plurality of color filters, respectively, and wherein the bending organic layer includes the same material as at least one of the color filters.Type: GrantFiled: December 15, 2019Date of Patent: June 14, 2022Assignee: Samsung Display Co., Ltd.Inventor: Hyeon Bum Lee
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Publication number: 20220140010Abstract: A display device includes a substrate; a transistor on the substrate; a first electrode electrically connected to the transistor; a pixel defining layer on the first electrode, the pixel defining layer including a pixel opening overlapping the first electrode; an emission layer and a second electrode overlapping the first electrode; a touch electrode on the second electrode; a first low refraction layer and a second low refraction layer overlapping the touch electrode; and a high refraction layer on the second low refraction layer. The first low refraction layer includes a first opening. The second low refraction layer includes a second opening. The first opening, the second opening, and the pixel opening have different widths in a first diagonal direction.Type: ApplicationFiled: May 14, 2021Publication date: May 5, 2022Inventor: Hyeon Bum LEE
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Patent number: 11271054Abstract: An organic light emitting display device including a base layer; an insulating layer disposed on the base layer and including a flat region having a flat surface and a lens region having a concave or convex surface; a dam disposed on the insulating layer and defining an opening exposing the lens region; and a color filter disposed on the lens region of the insulating layer and filling the opening, The dam includes a sensing electrode.Type: GrantFiled: April 15, 2019Date of Patent: March 8, 2022Assignee: Samsung Display Co., Ltd.Inventors: Hyeon Bum Lee, Hyoeng Ki Kim, Jun Hyuk Woo, Kwang Woo Park
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Publication number: 20220020820Abstract: A light emitting display device includes a substrate including a display area and a non-display area adjacent to the display area, a lower pad electrode disposed on the substrate in the non-display area, a lower planarization layer disposed on the lower pad electrode and including a via hole exposing an upper surface of the lower pad electrode, an upper pad electrode disposed on the lower pad electrode, the upper pad electrode being electrically connected to the lower pad electrode through the via hole, and a covering layer in contact with a side surface portion of the upper pad electrode, the side surface portion of the upper pad electrode being disposed on the lower planarization layer.Type: ApplicationFiled: January 13, 2021Publication date: January 20, 2022Applicant: Samsung Display Co., LTD.Inventors: Hyeon Bum LEE, Choong Youl IM, Ha Seok JEON
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Publication number: 20210399058Abstract: An OLED display according to an exemplary embodiment includes: a substrate that includes a display area and a non-display area; a pixel circuit that is disposed in the display area; organic light emitting diodes and barrier ribs that are disposed on the pixel circuit; an encapsulation layer that covers the pixel circuit, the organic light emitting diodes, and the barrier ribs; and a color filter that is disposed on the encapsulation layer, wherein the encapsulation layer comprises an edge area that is adjacent to the non-display area in the display area and a center area not directly adjacent to the non-display area and having the edge area disposed therebetween, the color filter comprises a first color filter, a second color filter, a third color filter, and color filter overlapped portions where the first color filter, the second color filter, and the third color filter are overlapped, and the color filter overlapped portions are disposed in areas where the barrier ribs are disposed, and a thickness of theType: ApplicationFiled: September 9, 2021Publication date: December 23, 2021Inventors: Hyeon Bum LEE, Jin Ho JU
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Patent number: 11183553Abstract: An organic light-emitting display device including: a substrate; a pixel electrode on the substrate; a pixel defining film on the pixel electrode and having a first opening at least partially exposing the pixel electrode; an organic light-emitting layer on the exposed portion of the pixel electrode; a common electrode on the organic light-emitting layer and the pixel defining film; an encapsulation layer on the common electrode; a black matrix on the encapsulation layer and having a second opening overlapping the first opening; and a plurality of first sensing lines on the black matrix and surrounding the pixel electrode in a plan view to define a pixel region. At least portions of the first sensing lines defining the pixel region do not overlap the common electrode in the pixel region to reduce the common electrode's influence on the touch sensing lines and improve touch sensitivity.Type: GrantFiled: October 30, 2018Date of Patent: November 23, 2021Assignee: Samsung Display Co., Ltd.Inventors: Jun Hyuk Woo, Kwang Woo Park, Hyoeng Ki Kim, Eon Joo Lee, Jin Whan Jung, Jeong Won Kim, Hyeon Bum Lee
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Publication number: 20210358976Abstract: A display device may include a source electrode disposed on a substrate; a drain electrode disposed on the substrate; an insulating layer disposed on the source electrode and the drain electrode, the insulating layer including an opening overlapping the drain electrode; and a first electrode disposed on the insulating layer and electrically contacting the drain electrode in the opening of the insulating layer, wherein an angle between a side surface of the opening of the insulating layer and a plane parallel to the substrate is in a range of about 70 degrees to about 85 degrees.Type: ApplicationFiled: December 30, 2020Publication date: November 18, 2021Applicant: Samsung Display Co., LTD.Inventor: Hyeon Bum LEE
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Publication number: 20210327994Abstract: A display device includes a transistor disposed on a substrate and including a gate electrode, a channel region, a source region, and a drain region; a first insulating layer disposed on the transistor; a drain electrode that electrically contacts the drain region through an opening formed in the first insulating layer; a connection electrode disposed on the drain electrode and electrically contacting the drain electrode; a second insulating layer disposed on the first insulating layer, an upper surface of the second insulating layer and an upper surface of the connection electrode forming a flat surface that is parallel to the substrate; a pixel electrode disposed on the flat surface and electrically contacting an upper surface of the connection electrode; an emission layer disposed on the pixel electrode; and a common electrode disposed on the emission layer.Type: ApplicationFiled: November 9, 2020Publication date: October 21, 2021Applicant: Samsung Display Co., LTD.Inventor: Hyeon Bum LEE