With Electrode Matrix Patents (Class 313/505)
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Patent number: 10804425Abstract: A growth substrate including micro-light emitting diode (LED) chips and a method of manufacturing a light emitting diode display using the growth substrate are disclosed. The growth substrate includes LED chips. The LED chips are divided into n groups each including p LED chips, where each of the n and p is an integer equal to or greater than 2. At least two of the n groups are adjacent to each other. Each of the n includes a first LED chip having a directionality toward a first direction and a second LED chip having a directionality toward a second direction different from the first direction.Type: GrantFiled: July 17, 2018Date of Patent: October 13, 2020Assignee: LG Display Co., Ltd.Inventors: Joonkwon Moon, Hwankuk Yuh, Taesu Oh
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Patent number: 10784465Abstract: There has been a problem that difference in refractive index between an opposite substrate or a moisture barrier layer provided thereover, and air is maintained large, and light extraction efficiency is low. Further, there has been a problem that peeling or cracking due to the moisture barrier layer is easily generated, which leads to deteriorate the reliability and lifetime of a light-emitting element. A light-emitting element includes a pixel electrode, an electroluminescent layer, a transparent electrode, a passivation film, a stress relieving layer, and a low refractive index layer, all of which are stacked sequentially. The stress relieving layer serves to prevent peeling of the passivation film. The low refractive index layer serves to reduce reflectivity of light generated in the electroluminescent layer in emitting to air. Therefore, a light-emitting element with high reliability and long lifetime and a display device using the light-emitting element can be provided.Type: GrantFiled: July 10, 2018Date of Patent: September 22, 2020Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Hisao Ikeda, Hiroki Ohara, Makoto Hosoba, Junichiro Sakata, Shunichi Ito
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Patent number: 10754208Abstract: To prevent the display quality from being degraded as a result of (i) a boundary portion of an edge region of the display region being visibly in the shape of stairs and/or (ii) emitted light having an unintended color, a display panel includes a light-shielding section including, for each pixel (5) through which a curved boundary line (ideal line) extends, sub-pixel light-shielding sections (3a) each overlapping a corresponding one of a red sub-pixel (4R), a green sub-pixel (4G), and a blue sub-pixel (4B).Type: GrantFiled: January 3, 2019Date of Patent: August 25, 2020Assignee: SHARP KABUSIKI KAISHAInventor: Youhei Nakanishi
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Patent number: 10749140Abstract: Disclosed herein is an organic light-emitting display (OLED) device including: a substrate comprising an active area and an inactive area surrounding the active area; a first planarization layer; a second planarization layer; an organic light-emitting element; an encapsulation layer comprising a first inorganic layer, a second inorganic layer and a first organic member; a first structure in the inactive area and comprising a first support layer made of the same material as the first planarization layer or the second planarization layer, a second structure in the inactive area and comprising a second support layer made of the same material as the first planarization layer or the second planarization layer.Type: GrantFiled: November 29, 2017Date of Patent: August 18, 2020Assignee: LG DISPLAY CO., LTD.Inventors: Jongchan Park, Hyunchul Um, JeeHwan Oh
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Patent number: 10725333Abstract: A display device may include a first substrate, a first color conversion unit, a second color conversion unit, a light diffusion unit, and a first wall. The first color conversion unit is located on the first substrate. The second color conversion unit is disposed on the first substrate and is spaced from the first color conversion unit. The light diffusion unit is disposed between the first color conversion unit and the second color conversion unit. The first wall is disposed between the first color conversion unit and the light diffusion unit. The first color conversion unit includes a first-color conversion layer. The first-color conversion layer overlaps two pixel regions.Type: GrantFiled: February 8, 2018Date of Patent: July 28, 2020Assignee: Samsung Display Co., Ltd.Inventors: Kanguk Kim, Sungman Kim, Jungsuk Bang, Donchan Cho, Youngje Cho
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Patent number: 10700302Abstract: A display substrate and an OLED display device, the display substrate including a water absorbing structure disposed on the display substrate that is configured to be capable of absorbing moisture in the display substrate. In the embodiments of the present invention, by providing a water absorbing structure in the display substrate, it is possible to protect the organic luminescent unit from moisture released in the process of manufacturing and operating the display substrate, enhance the performance of the OLED display device and prolong the service life of the OLED display device.Type: GrantFiled: May 10, 2017Date of Patent: June 30, 2020Assignees: BOE Technology Group Co., Ltd., Hefei BOE Optoelectronics Technology Co., Ltd.Inventors: Zhaozhe Xu, Ji Li
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Patent number: 10672842Abstract: An illuminating panel includes a light source layer comprising a plurality of light-emitting components, a conductive layer disposed over a light-emitting side of the light source layer, and an insulating layer sandwiched between the light source layer and the conductive layer. The conductive layer comprises signal lines, each configured to drive emission of lights from the light-emitting components, and further comprises a light-shielding portion, configured to block one portion of the lights from the light source layer from passing therethrough. The light-emitting components are configured such that those unshielded or partially shielded by the light-shielding portion is electrically coupled to one signal line to emit lights, and those completely shielded by light-shielding portion is not electrically coupled to the signal lines and thus not able to emit lights. A lighting device containing an illuminating panel is further disclosed herein.Type: GrantFiled: August 11, 2017Date of Patent: June 2, 2020Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventor: Chiehhsing Chung
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Patent number: 10608062Abstract: A bank (BK1b) and a bank (BK1a) having a height less than a height of the bank (BK1b) are intermittently provided on a bank (BK1) covering a peripheral portion of each first electrode (21) of a light emitting element.Type: GrantFiled: March 16, 2017Date of Patent: March 31, 2020Assignee: SHARP KABUSHIKI KAISHAInventors: Jumpei Takahashi, Takeshi Hirase, Hisao Ochi, Takashi Ochi, Tohru Senoo, Tohru Sonoda, Akihiro Matsui, Yoshinobu Miyamoto
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Patent number: 10591753Abstract: An electroluminescent display is disclosed. The electroluminescent display includes a display panel including sub-pixels in which a light emitting area is defined and wirings connected to the sub-pixels. The sub-pixels have a transistor and a light emitting element. The wirings include a first wiring arranged along a first axis direction or a second axis direction perpendicular to the first axis direction. The first wiring is disposed under a first electrode of the light emitting element with an organic insulating layer interposed therebetween, and includes an overlapping portion overlapping with the light emitting area when viewed from plan. The overlapping portion of the first wiring has a shape with symmetry with respect to a center of gravity of the light emitting area.Type: GrantFiled: July 30, 2018Date of Patent: March 17, 2020Assignee: LG Display Co., Ltd.Inventors: Jiyun Kim, Choelmin Woo, Woochan Kim
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Patent number: 10586838Abstract: Provided is a display device including a first sub-pixel, a second sub-pixel adjacent to the first sub-pixel. The first sub-pixel and the second sub-pixel each include a semiconductor film, a gate electrode, a gate insulating film, an interlayer insulating film, and a leveling film and further possesses a light-emitting element located over the leveling film. The display device has a partition wall located between the first sub-pixel and the second sub-pixel and a trench passing through the leveling film.Type: GrantFiled: April 9, 2019Date of Patent: March 10, 2020Assignee: Japan Display Inc.Inventor: Masakazu Gunji
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Patent number: 10573831Abstract: A flexible display device includes: a first flexible substrate and a second flexible substrate facing each other; a display part positioned on a surface of the first flexible substrate facing the second flexible substrate and including a plurality of thin film transistors and a plurality of light emitting elements; a color filter positioned on a surface of the second flexible substrate facing the first flexible substrate; an overcoat layer positioned between the display part and the color filter and covering the color filter; a gas barrier layer positioned between the display part and the overcoat layer and covering the overcoat layer; and an encapsulation part including a filler positioned between the display part and the gas barrier layer, and a sealant positioned at an outside of the filler, and an area of the gas barrier layer is larger than an area of the encapsulation part.Type: GrantFiled: October 24, 2017Date of Patent: February 25, 2020Assignee: Samsung Display Co., Ltd.Inventors: Heung Kyoon Lim, Kie Hyun Nam
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Patent number: 10573696Abstract: A display panel, a manufacturing method and driving method thereof are provided. The display panel includes a light transmittance adjusting layer and two pixel layers being respectively located on opposite surfaces of light transmittance adjusting layer. Each pixel layer includes multiple light-emitting units arranged in an array. Orthogonal projections of two pixel layers on the light transmittance adjusting layer do not overlap. When light transmittance of light transmittance adjusting layer is higher, light emitted from the light-emitting units on both surfaces of light transmittance adjusting layer is emergent from opposite sides through light transmittance adjusting layer. Two pixel layers display the same picture jointly. When light transmittance of light transmittance adjusting layer is lower, light emitted from light-emitting units on both surfaces of light transmittance adjusting layer cannot be transmitted through light transmittance adjusting layer to reach opposite sides.Type: GrantFiled: July 30, 2018Date of Patent: February 25, 2020Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Rui Guo, Weihao Hu, Boxiao Lan, Zhiming Meng, Hengyu Yan
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Patent number: 10575400Abstract: A light-emitting module according to an embodiment includes a first insulating film with light transmissive property, a plurality of mesh patterns including a plurality of first line patterns and a plurality of second line patterns, a light-emitting element, and a resin layer. The first line patterns are formed on the first insulating film and are parallel to one another. The second line patterns intersect with the first line patterns and are parallel to one another. The light-emitting element is connected to any two of a plurality of the mesh patterns. The resin layer holds the light-emitting element to the first insulating film. A first mesh pattern and a second mesh pattern adjacent to one another among the plurality of mesh patterns have a boundary. Line patterns projecting from the first mesh pattern to the boundary and line patterns projecting from the second mesh pattern to the boundary are collocated along the boundary in a state of being adjacent to one another.Type: GrantFiled: October 27, 2017Date of Patent: February 25, 2020Assignee: Toshiba Hokuto Electronics CorporationInventor: Keiichi Maki
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Patent number: 10522587Abstract: A display panel comprises a display region, a non-display region, and a black matrix. The display region includes a plurality of pixels arranged in both a first direction and a second direction, where the plurality of pixels are arranged in the first direction to form a plurality of pixel rows and, meanwhile, arranged in the second direction to form a plurality of pixel columns, and a pixel includes a light-transmitting area. The black matrix does not overlap with the light-transmitting area. The display region includes at least one irregular edge intersecting both the first direction and the second direction. The plurality of pixels include a plurality of first pixels intersecting the at least one irregular edge and a plurality of second pixels without intersecting the at least one irregular edge, and the light-transmitting area of the first pixel is smaller than the light-transmitting area of the second pixel.Type: GrantFiled: May 7, 2018Date of Patent: December 31, 2019Assignee: XIAMEN TIANMA MICRO-ELECTRONICS CO., LTD.Inventors: Yongping Zeng, Binyi Zheng, Yan Yang, Ling Wu, Boping Shen, Ankai Ling
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Patent number: 10497301Abstract: A light-emitting device (LED) includes a primary driving circuit and a pixel. The primary driving circuit receives a system high voltage, a data signal, and a scan signal from a scan line, wherein the primary driving circuit has an output terminal. The pixel includes a plurality of light-emitting sub-pixel circuits. Each of the light-emitting sub-pixel is coupled to the output terminal of the primary driving circuit. Wherein, a frame period includes multiple equal fields, the light-emitting sub-pixel circuits are respectively corresponding to the fields and are activated according to a sequence as assigned. The light-emitting device display includes a plurality of light-emitting sub-pixel circuits are activated in raw, in column or both according to a sequence as assigned.Type: GrantFiled: April 17, 2017Date of Patent: December 3, 2019Assignee: Innolux CorporationInventor: Hirofumi Watsuda
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Patent number: 10497763Abstract: An organic light emitting diode display device includes a substrate; a thin film transistor on the substrate; a first electrode on the thin film transistor and connected to a drain electrode of the thin film transistor; an auxiliary electrode on a same layer as the first electrode; a bank layer covering edges of the first electrode and edges of the auxiliary electrode and having a transmissive hole corresponding to the first electrode and an auxiliary contact hole corresponding to the auxiliary electrode; a light emitting layer on the first electrode in the transmissive hole; a residual layer on the auxiliary electrode in the auxiliary contact hole, wherein a thickness of a central portion of the residual layer is smaller than a thickness of an edge portion of the residual layer; and a second electrode on the light emitting layer and the residual layer.Type: GrantFiled: December 21, 2017Date of Patent: December 3, 2019Assignee: LG DISPLAY CO., LTD.Inventors: Seung-Han Paek, Hyo-Dae Bae, Young-Mu Oh, Jeong-Won Lee, Heon-Il Song, Jong-Hoon Yeo
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Patent number: 10468635Abstract: A high contrast ratio organic light-emitting display device includes a first and a second substrate disposed oppositely, a blue light-emitting layer disposed at an inner side of the first substrate, a color conversion layer disposed at an inner side of the second substrate and multiple spacer plates disposed between the first substrate and the second substrate. Wherein the color conversion layer includes multiple sub-conversion units which are arranged as a matrix, disposed separately and capable of correspondingly generating different lights. The spacer plate blocks adjacent two sub-conversion units. The present invention utilizes the spacer plate to block interference of the blue light at sub-conversion units to increase the contrast ratio of the display device. Besides, making the spacer plate to be reflective, the blue light emitted to each sub-conversion unit is more concentrated in order to increase the contrast ratio of different sub-conversion units.Type: GrantFiled: February 12, 2018Date of Patent: November 5, 2019Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.Inventors: Xiang Jin, Chaoyu Yuan
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Patent number: 10468435Abstract: A display panel includes signal wires arranged in an active area, connection wires arranged in a non-display area adjacent to the active area electrically connected to the plurality of signal wires, and panel pads in the non-display area that are electrically connected to the plurality of connection wires. The panel pads include a first panel pad row arranged in a first direction, a second panel pad row arranged in the first direction, and a gap between the first panel pad row and the second panel pad row along the first direction. The first panel pad row and the second panel pad row include extended panel pads extended toward an adjacent panel pad row so as to reduce a swelled region in the gap.Type: GrantFiled: August 31, 2018Date of Patent: November 5, 2019Assignee: LG Display Co., Ltd.Inventors: JaeBok Kim, WonSub Yoon, JiHong Park
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Patent number: 10446623Abstract: An organic light emitting display panel and a method for fabricating the same are provided by the present invention. The organic light emitting display panel includes: a substrate and a light emitting element layer disposed on the substrate. The light emitting element layer is provided with a plurality of first grooves. The organic light emitting display panel also includes an encapsulation layer disposed on the light emitting element layer, the plurality of first grooves are filled with the encapsulation layer.Type: GrantFiled: February 14, 2017Date of Patent: October 15, 2019Assignees: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD., TIANMA MICRO-ELECTRONICS CO., LTD.Inventor: Yu Cai
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Patent number: 10444902Abstract: A touch sensor includes first electrodes which are driving electrodes of the touch sensor, second electrodes which are detecting electrodes of the touch sensor, third electrodes, and an insulating film which is stacked on the first electrodes. Each of the first electrodes extends in a first direction. Each of the second electrodes and each of the third electrodes are formed on the insulating film, and extend in a second direction. The second electrodes overlap with partial regions of the first electrodes, and the third electrodes overlap with other partial regions of the first electrodes and are formed in gaps between the second electrodes. A film thickness of the insulating film between the first electrodes and the third electrodes varies due to pressing force in a film thickness direction, and the insulating film constitutes the electrostatic capacitance-type pressure sensor with first electrodes and the third electrodes.Type: GrantFiled: August 4, 2017Date of Patent: October 15, 2019Assignee: Japan Display Inc.Inventor: Chunche Ma
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Patent number: 10437283Abstract: A display device includes a display panel mounted on a curved surface, and driver circuits including circuit elements which are mounted on a plurality of plane surfaces provided on the back of the curved surface in a stepwise shape along the curved surface.Type: GrantFiled: August 6, 2018Date of Patent: October 8, 2019Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Yoshiharu Hirakata
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Patent number: 10439163Abstract: An organic light emitting diode (OLED) display panel and a manufacture method thereof, a display device are disclosed. The method includes providing a base substrate, including a display area and a package area; forming a driving transistor, a passivation layer and an OLED display unit on the base substrate, wherein the OLED display unit and the driving transistor are formed in the display area, the passivation layer is formed in both the display area and the package area and includes a plurality of recesses in the package area and a via hole in the display area, and the via hole and the plurality of recesses are formed by same one patterning process; coating a sealant in the package area to cover the plurality of recesses; and providing a package substrate, the package substrate and the base substrate being assembled together and sealed oppositely by the sealant.Type: GrantFiled: October 13, 2017Date of Patent: October 8, 2019Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Tongshang Su, Guangcai Yuan, Dongfang Wang, Bin Zhou, Ce Zhao, Jun Liu, Ning Liu, Kai Xu, Shengping Du
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Patent number: 10431633Abstract: A method for producing a component is provided, where the component comprises a substrate, which emits at least one electromagnetic radiation in a first wavelength range and an electromagnetic radiation in a second wavelength range within one surface area. Electrodes can be formed within the surface area of the substrate; a first layer stack can be deposited, comprising at least one layer, which causes the emission of the electromagnetic radiation in the first wavelength range, and a cover layer, acting as the first counterelectrode, on the entire surface area; the first layer stack can be removed from a first partial surface area, which comprises at least one electrode; a second layer stack can be deposited, comprising at least one layer, which causes the emission of the electromagnetic radiation in the second wavelength range, and a second cover layer, acting as the counterelectrode, on the entire surface area.Type: GrantFiled: August 8, 2018Date of Patent: October 1, 2019Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.Inventors: Volker Kirchhoff, Uwe Vogel, Elisabeth Bodenstein, Beatrice Beyer, Stefan Saager, Karsten Fehse, Bernd Richter, Philipp Wartenberg, Mario Metzner, Christoph Metzner, Matthias Schober, Susan Mühl
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Patent number: 10424757Abstract: An organic light emitting apparatus including a first electrode, a second electrode, and an organic layer disposed between the first electrode and the second electrode and including a light emitting layer. The first electrode includes a metallic layer containing a first metal and a mixture layer disposed between the metallic layer and the organic layer. The mixture layer contains the first metal and a second metal having lower reflectance than the first metal.Type: GrantFiled: April 11, 2018Date of Patent: September 24, 2019Assignee: Canon Kabushiki KaishaInventor: Nobutaka Ukigaya
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Patent number: 10418431Abstract: A display device may include a light emitting element, a buffer layer, a gate insulation layer, and a switching element. A refractive index of the gate insulation layer may be equal to a refractive index of the buffer layer. The switching element may be electrically connected to the light emitting element and may include an active layer and a gate electrode. The active layer may be positioned between the buffer layer and the gate insulation layer and may directly contact at least one of the buffer layer and the gate insulation layer. The gate insulation layer may be positioned between the active layer and the gate electrode and may directly contact at least one of the active layer and the gate electrode.Type: GrantFiled: January 26, 2017Date of Patent: September 17, 2019Assignee: Samsung Display Co., Ltd.Inventors: Hye-Hyang Park, Joo-Hee Jeon, Seung-Ho Jung, Chaun-Gi Choi, Hyeon-Sik Kim, Hui-Won Yang, Eun-Young Lee
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Patent number: 10403697Abstract: It is an object of the invention to provide a technique to manufacture a display device with high image quality and high reliability at low cost with high yield. The invention has spacers over a pixel electrode layer in a pixel region and over an insulating layer functioning as a partition which covers the periphery of the pixel electrode layer. When forming a light emitting material over a pixel electrode layer, a mask for selective formation is supported by the spacers, thereby preventing the mask from contacting the pixel electrode layer due to a twist and deflection thereof. Accordingly, such damage as a crack by the mask does not occur in the pixel electrode layer. Thus, the pixel electrode layer does not have a defect in shapes, thereby a display device which performs a high resolution display with high reliability can be manufactured.Type: GrantFiled: July 23, 2018Date of Patent: September 3, 2019Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventor: Shunpei Yamazaki
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Patent number: 10355061Abstract: An organic light emitting display device includes a substrate including a pixel region and a non-pixel region; a first electrode over the substrate in the pixel region; an organic emitting layer over the first electrode in the pixel region; a bank over the substrate in the non-pixel region; an auxiliary conductive line covered by the bank in the non-pixel region, a thickness of the auxiliary line larger than a thickness of the first electrode; and a second electrode on the organic emitting layer in the pixel region and on the bank in the non-pixel region, the second electrode electrically connected to the auxiliary conductive line.Type: GrantFiled: June 29, 2016Date of Patent: July 16, 2019Assignee: LG Display Co., Ltd.Inventors: Jong-Hoon Yeo, Seung-Han Paek, Hyo-Dae Bae, Young-Mu Oh, Jeong-Won Lee, Heon-Il Song
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Patent number: 10270006Abstract: A light emitting device disclosed in an embodiment includes: a light emitting chip including a light emitting part, including a plurality of semiconductor layers, and a first electrode and a second electrode under the light emitting part; a first support member under the light emitting chip; a second support member under the first support member; a first lead electrode connected to the first electrode and a second lead electrode connected to the second electrode, in the second support member, the first lead electrode being separated from the second lead electrode; a protection chip disposed between the first and second lead electrodes; and a reflective member disposed on a periphery of the light emitting chip, wherein the first support member includes a ceramic material between the second support member and the light emitting chip.Type: GrantFiled: July 1, 2016Date of Patent: April 23, 2019Assignee: LG INNOTEK CO., LTD.Inventor: Shuhei Matsuda
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Patent number: 10243028Abstract: An organic EL element includes: a substrate that is light-transmissive; a pair of electrode layers (first electrode layer and second electrode layer) disposed above the substrate, at least one of the pair of electrode layers being light-transmissive; and a planar light-emitting layer disposed between the first electrode layer and second electrode layer. The first electrode layer is disposed in a first region in a plan view. The organic EL element further includes a buffer layer disposed, in a plan view, in a second region adjacent the first region. The buffer layer is for reducing a difference in an optical characteristic between the first region and the second region with respect to a predetermined light.Type: GrantFiled: February 27, 2015Date of Patent: March 26, 2019Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventor: Yuko Suzuka
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Patent number: 10205065Abstract: There is provided a light-emitting device including an anode electrode land, a cathode electrode land, and a first light-emitting unit and a second light-emitting unit electrically connected to the anode electrode land and the cathode electrode land and provided in parallel to each other, in which the first light-emitting unit and the second light-emitting unit each include blue light-emitting LED chips, the first light-emitting unit and the second light-emitting unit have different amounts of change in luminous flux with respect to an amount of change in current applied between the anode electrode land and the cathode electrode land, and a color temperature generated from an entire light-emitting unit including the first light-emitting unit and the second light-emitting unit can be adjusted.Type: GrantFiled: February 22, 2016Date of Patent: February 12, 2019Assignee: SHARP KABUSHIKI KAISHAInventors: Yoshihiro Kawaguchi, Tomokazu Nada, Hiroaki Onuma, Makoto Matsuda, Osamu Jinushi, Toshio Hata
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Patent number: 10192899Abstract: A display includes a first substrate, a second substrate, a plurality of pixels and a photo-catalyst layer. The plurality of pixels are disposed between the first substrate and the second substrate. The photo-catalyst layer is disposed above a surface of the second substrate facing the first substrate or above a surface of the first substrate facing the second substrate. Manufacturing methods of a display are additionally disclosed.Type: GrantFiled: December 9, 2016Date of Patent: January 29, 2019Assignee: AU OPTRONICS CORPORATIONInventor: Shih-Hsing Hung
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Patent number: 10177015Abstract: A method of transferring light-emitting diodes including picking up the light-emitting diodes from a base substrate by using a first stamper; rotating the light-emitting diodes by about 90 degrees and arranging the light-emitting diodes over the first stamper or a sacrificial substrate; picking up the rotated light-emitting diodes arranged over the first stamper or the sacrificial substrate by using a second stamper; and releasing the light-emitting diodes from the second stamper towards a display substrate.Type: GrantFiled: February 16, 2017Date of Patent: January 8, 2019Assignee: SAMSUNG DISPLAY CO., LTD.Inventor: Insun Hwang
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Patent number: 10177205Abstract: A display device including a plurality of first electrodes arranged in a display region above a substrate, each of the plurality of first electrodes being in common with n (n is an integer of 2 or more) number of light emitting elements, a bank having a recess part and partitioning the n number of light emitting elements with the recess part as a boundary in each of the plurality of first electrodes, a light emitting layer arranged above the plurality of first electrodes throughout the display region, and n groups of second electrodes arranged above the light emitting layer and electrically separated with the recess part as a boundary.Type: GrantFiled: September 27, 2016Date of Patent: January 8, 2019Assignee: Japan Display Inc.Inventors: Yasukazu Kimura, Toshihiro Sato
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Patent number: 10141383Abstract: An organic light emitting display device according to an embodiment includes a lower substrate; a bank layer disposed on the lower substrate; a connection assistance unit disposed on the bank layer; a cathode disposed on the lower substrate so as to cover the bank layer; an auxiliary electrode disposed on the bank layer and electrically connected with the cathode; and an upper substrate provided to face the lower substrate.Type: GrantFiled: July 17, 2015Date of Patent: November 27, 2018Assignee: LG DISPLAY CO., LTD.Inventors: Youngmi Kim, Joonyoung Heo, Howon Choi, Sungbin Shim, Dongwoo Song, Hyesook Kim
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Patent number: 10125292Abstract: Provided are an adhesive film and an organic electronic device (OED) encapsulation product using the same. As moisture resistance is maintained by preventing traveling of moisture in a matrix resin, moisture or oxygen input to the organic electronic device from an external environment may be effectively prevented, and temporal stability, life span and durability may be enhanced even when a panel of the organic electronic device is formed as a thin film, thereby ensuring long-term reliability.Type: GrantFiled: October 21, 2014Date of Patent: November 13, 2018Assignee: LG Chem, Ltd.Inventors: Seung Min Lee, Hyun Jee Yoo, Suk Ky Chang, Jung Sup Shim, Yoon Gyung Cho, Kyung Yul Bae
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Patent number: 10038040Abstract: It is an object of the invention to provide a technique to manufacture a display device with high image quality and high reliability at low cost with high yield. The invention has spacers over a pixel electrode layer in a pixel region and over an insulating layer functioning as a partition which covers the periphery of the pixel electrode layer. When forming a light emitting material over a pixel electrode layer, a mask for selective formation is supported by the spacers, thereby preventing the mask from contacting the pixel electrode layer due to a twist and deflection thereof. Accordingly, such damage as a crack by the mask does not occur in the pixel electrode layer. Thus, the pixel electrode layer does not have a defect in shapes, thereby a display device which performs a high resolution display with high reliability can be manufactured.Type: GrantFiled: January 30, 2018Date of Patent: July 31, 2018Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventor: Shunpei Yamazaki
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Patent number: 10032843Abstract: Discussed is an organic light emitting display device in which an auxiliary electrode is disposed on an overcoating layer, and thus, an aperture ratio is enhanced. The organic light emitting display device can include a first overcoating layer disposed on a driving transistor and a supply electrode, a connection electrode disposed on the first overcoating layer and connected to the supply electrode through the second contact hole, a first electrode disposed on the first overcoating layer and connected to the driving transistor through the first contact hole, a second overcoating layer disposed on the first overcoating layer, and an auxiliary electrode disposed on the second overcoating layer and connected to the connection electrode. The first overcoating layer may include a first contact hole and a second contact hole. The second overcoating layer may cover the first and second contact holes and may not cover a portion of the first electrode.Type: GrantFiled: September 10, 2015Date of Patent: July 24, 2018Assignee: LG DISPLAY CO., LTD.Inventors: Jae Sung Lee, Joon Suk Lee
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Patent number: 10026798Abstract: A static electricity prevention circuit of a display device including: a driving circuit configured to drive a display unit that displays an image, at least one clock signal wire configured to transmit a clock signal to the driving circuit, at least one transistor electrically coupled to the clock signal wire, and at least one capacitor including a first electrode coupled to a source electrode and to a drain electrode of the transistor, and a second electrode configured to be maintained at a voltage.Type: GrantFiled: May 8, 2015Date of Patent: July 17, 2018Assignee: Samsung Display Co., Ltd.Inventors: Yong-Jae Kim, Bo-Yong Chung, Hae-Yeon Lee
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Patent number: 10008669Abstract: The fabrication and characterization of large scale inverted organic solar array fabricated using all-spray process is disclosed, consisting of four layers; ITO-Cs2CO3-(P3HT:PCBM)-modified PEDPT:PSS, on a substrate. With PEDPT:PSS as the anode, the encapsulated solar array shows more than 30% transmission in the visible to near IR range. Optimization by thermal annealing was performed based on single-cell or multiple-cell arrays. Solar illumination has been demonstrated to improve solar array efficiency up to 250% with device efficiency of 1.80% under AM1.5 irradiance. The performance enhancement under illumination occurs only with sprayed devices, indicating device enhancement under sunlight, which is beneficial for solar energy applications.Type: GrantFiled: August 3, 2015Date of Patent: June 26, 2018Assignee: University of South FloridaInventors: Xiaomei Jane Jiang, Jason Erik Lewis
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Patent number: 10002912Abstract: An organic light emitting device includes four sub-organic light emitting devices. The first device includes a first anode, a first common light emitting portion, and a first sub-light emitting portion. The second device includes a second anode, a second common light emitting portion, a first auxiliary layer, and a second sub-light emitting portion. The third device includes a third anode and a third common light emitting portion. The fourth device includes a fourth anode, a fourth common light emitting portion, and a light emitting layer emitting a first light. The first and second sub-light emitting portions have an integral structure and emit second light. The first, second, third, and fourth common light emitting portions have an integral structure and emit third light having a wavelength longer than a wavelength of at least one of the first or second lights.Type: GrantFiled: August 30, 2016Date of Patent: June 19, 2018Assignee: Samsung Display Co., Ltd.Inventors: Aree Song, Byeong-hee Won, Wonsang Park, Jongin Baek
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Patent number: 9960376Abstract: In an organic light emitting diode (OLED) display device and a method for fabricating the same, OLED pixels are patterned through a photolithography process, so a large area patterning can be performed and a fine pitch can be obtained, and an organic compound layer can be protected by forming a buffer layer of a metal oxide on an upper portion of the organic compound layer or patterning the organic compound layer by using a cathode as a mask, improving device efficiency. In addition, among red, green, and blue pixels, two pixels are patterned through a lift-off process and the other remaining one is deposited to be formed without patterning, the process can be simplified and efficiency can be increased.Type: GrantFiled: July 20, 2016Date of Patent: May 1, 2018Assignee: LG Display Co., Ltd.Inventors: Young-Mi Kim, Jong-Geun Yoon, Joon-Young Heo, Han-Sun Park, Eui-Doo Do, Yeon-Kyeong Lee, Dae-Hyun Kim, Jong-Sik Shim
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Patent number: 9935162Abstract: An embodiment of the present disclosure provides an organic electroluminescent transistor array substrate, including a substrate, and a gate layer, a gate insulating layer, a semiconductor layer, a source layer, a pixel defining layer, an electroluminescent layer and a drain layer formed on the substrate, wherein, the source layer and the drain layer are located in different levels, the source layer includes plural source electrode units corresponding to sub-pixel units respectively, the pixel defining layer includes plural pixel defining units corresponding to the source electrode units respectively, and the respective source electrode units are embedded within the pixel defining units corresponding thereto.Type: GrantFiled: June 2, 2016Date of Patent: April 3, 2018Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Xuyuan Li, Liqiang Chen, Chunsheng Jiang, Changcheng Xu
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Patent number: 9911943Abstract: An organic light-emitting display device is provided. The device can include a display area having an organic light-emitting element on a lower substrate; a bezel area surrounding the display area; a transparent encapsulation unit having first and second encapsulation layers, and a first particle cover; and a first buffer layer. The first encapsulation layer can cover the display area and the bezel area. The first particle cover layer can cover the display area and a portion of the bezel area adjacent to the display area. The first buffer layer, apart from the first particle cover layer, can cover another portion of the bezel area. The second encapsulation layer, which covers the first particle cover layer and the first buffer layer, contacts the first encapsulation layer at a contact surface between the first particle cover layer and the first buffer layer.Type: GrantFiled: September 28, 2015Date of Patent: March 6, 2018Assignee: LG DISPLAY CO., LTD.Inventor: Myungwoo Han
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Patent number: 9890933Abstract: A holder included in a plurality of holders which fix, to a base, a light-emitting module to be placed on the base, by being attached to the base, includes: a contact terminal to be electrically connected to the light-emitting module; and a holding component which holds the light-emitting module in a cantilever-style when the holder is unattached to the base.Type: GrantFiled: August 17, 2015Date of Patent: February 13, 2018Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Akihiro Hirano, Ryusuke Kotera, Katsushi Seki, Youji Tachino, Satoshi Fukano
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Patent number: 9893130Abstract: It is an object of the invention to provide a technique to manufacture a display device with high image quality and high reliability at low cost with high yield. The invention has spacers over a pixel electrode layer in a pixel region and over an insulating layer functioning as a partition which covers the periphery of the pixel electrode layer. When forming a light emitting material over a pixel electrode layer, a mask for selective formation is supported by the spacers, thereby preventing the mask from contacting the pixel electrode layer due to a twist and deflection thereof. Accordingly, such damage as a crack by the mask does not occur in the pixel electrode layer. Thus, the pixel electrode layer does not have a defect in shapes, thereby a display device which performs a high resolution display with high reliability can be manufactured.Type: GrantFiled: December 21, 2016Date of Patent: February 13, 2018Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventor: Shunpei Yamazaki
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Patent number: 9859520Abstract: Provided are an organic light-emitting display device and method of manufacturing the same. An organic light-emitting display device includes: a thin-film transistor on a substrate, an auxiliary electrode member in a contact area on the substrate, the auxiliary electrode member being spaced apart from the thin-film transistor, an insulating member on the thin-film transistor and the auxiliary electrode member, the insulating member including an opening through which at least a part of the auxiliary electrode member is exposed in the contact area, and an organic light-emitting element on the insulating member, the organic light-emitting element including: an anode, an organic light-emitting layer, and a cathode, wherein a side surface of the opening is disposed closer to the inside of the opening than a side surface of the auxiliary electrode member, such that the cathode is in contact with the auxiliary electrode member without a reverse-tapered partitioning wall thereover.Type: GrantFiled: May 29, 2015Date of Patent: January 2, 2018Assignee: LG Display Co., Ltd.Inventor: KyungMan Kim
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Patent number: 9847502Abstract: The present invention relates to an organic light emitting device. An organic light emitting device according to the present application includes: a substrate; a first electrode provided on the substrate; an auxiliary electrode provided on at least a partial region of the first electrode; an insulating layer provided on the auxiliary electrode, and having an overhang structure in which the insulating layer has a greater width than that of the auxiliary electrode; and a second electrode provided on the first electrode and the insulating layer, in which the second electrode provided on the first electrode and the second electrode provided on the insulating layer have an electrode structure with an electrically short-circuited form.Type: GrantFiled: September 30, 2014Date of Patent: December 19, 2017Assignee: LG DISPLAY CO., LTD.Inventors: Young Kyun Moon, Minsoo Kang
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Patent number: 9837023Abstract: In a pixel circuit, TFTs are connected and driven such that a threshold voltage Vth of a TFT, which is a drive transistor, can be held in a threshold holding capacitor having a capacitance value c1, voltages, including a data potential Vdata representing an image to be displayed, can be held in a data holding capacitor having a capacitance value c2, and charges in the data holding capacitor and the threshold holding capacitor are redistributed at the time of light emission. As a result, a potential obtained by multiplying the data potential Vdata by c1/(c1+c2) is provided to a gate potential of the TFT.Type: GrantFiled: June 30, 2017Date of Patent: December 5, 2017Assignee: SHARP KABUSHIKI KAISHAInventors: Noritaka Kishi, Noboru Noguchi, Masanori Ohara, Shigetsugu Yamanaka
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Patent number: 9831487Abstract: Provided herein is a method for forming a transparent electrode film, the method comprising forming an electrode pattern by printing an electrode pattern on a release film using a metal ink composition; forming an insulating layer by applying a curable resin on the release film on which the electrode pattern has been formed; forming a substrate layer by laminating a substrate on the insulating layer; removing the release film; and forming a conductive layer by applying a conductive material on the electrode pattern from which the release film has been removed.Type: GrantFiled: May 16, 2014Date of Patent: November 28, 2017Assignee: INKTEC CO., LTD.Inventors: Kwang-Choon Chung, In-Sook Yi, Ji Hoon Yoo, Joonki Seong, Dae Sang Han
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Patent number: 9804466Abstract: A method of manufacturing an array substrate includes: forming a first functional layer comprising a plurality of array substrate areas and connection areas between adjacent array substrate areas; forming a plurality of conductive portions within each of the array substrate areas, the plurality of conductive portions extending from a corresponding one of the array substrate areas to a corresponding one of the connection areas and terminals of the plurality of conductive portions being in connection with capacitor lines within the corresponding one of the connection areas such that two capacitor lines between two adjacent array substrate areas face each other and are formed into a first capacitor element; forming a plurality of second functional layers on the first functional layer formed with the plurality of conductive portions and the capacitor lines, for forming a plurality of array substrates; and performing a cutting process at the connection areas between adjacent array substrates and removing the capacType: GrantFiled: June 13, 2016Date of Patent: October 31, 2017Assignees: BOE Technology Group Co., Ltd., Beijing BOE Display Technology Co., Ltd.Inventors: Cong Liu, Yuchun Feng, Chunze Zhang, Zhaohui Hao, Lin Li