Plural Layers Patents (Class 313/506)
  • Patent number: 11018276
    Abstract: A light emitting device includes a first pixel that includes a first light-emitting structure, a first color conversion layer on the first light-emitting structure, and a first multi-layered filter on the first color conversion layer, and a second pixel that includes a second light-emitting structure, a second color conversion layer on the second light-emitting structure, and a second multi-layered filter on the second color conversion layer. Each of the first and second multi-layered filters includes at least one stack including a first film and a second film. The first multi-layered filter outputs light of a wavelength band that is different from a wavelength band of light output from the second multi-layered filter. The first multi-layered filter reflects light not output back into the first pixel and the second multi-layered filter reflects light not output back into the second pixel.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: May 25, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Taehoon Kim, Jeongrok Oh, Sungwoo Choi, Chulsoo Yoon
  • Patent number: 11018303
    Abstract: A charge-transporting thin film, which enables the achievement of an organic EL element having excellent durability in cases where the charge-transporting thin film is applied to a hole injection layer of the element, is obtained using a charge-transporting varnish that contains a charge-transporting substance, a nonionic fluorine-containing surfactant and an organic solvent, and wherein the nonionic fluorine-containing surfactant has, for example, a perfluoroalkenyl group-containing perfluorohydrocarbon structure represented by one of formulae (1)-(3) and an alkylene oxide structure.
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: May 25, 2021
    Assignee: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventor: Naoki Otani
  • Patent number: 11011707
    Abstract: The organic EL display device includes at least a transparent electrode, an organic EL layer, and a non-transparent electrode in this order and further includes a black insulating layer, and the non-transparent electrode has a reflectance of 25%±20%.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: May 18, 2021
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Takeshi Arai, Kazuto Miyoshi
  • Patent number: 11011584
    Abstract: An array substrate includes a back plate including planar and curved portions; a light emitting layer at the back plate including first and second light emitting units that are spaced apart from each other, and a wavelength of a light emitted by the first light emitting unit being greater than a wavelength of a light emitted by the second light emitting unit; a pixel defining layer at a first side of the back plate and between the first light emitting unit and the second light emitting unit, the pixel defining layer including a first pixel defining region on the curved portion and adjacent to the first light emitting unit and close to the planar portion; and a correction layer at a side of the first pixel defining region away from the back plate for absorbing and reflecting the light emitted by the first light emitting unit.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: May 18, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lei Chen, Wei Quan
  • Patent number: 11005079
    Abstract: An anti-reflection bottom-emitting type OLED display device and a manufacturing method are provided. The anti-reflection bottom-emitting type OLED display device includes a substrate, multiple drive transistors, and a light emitting layer. The substrate is provided with a plurality of black matrixes spaced apart from each other. The drive transistors are arranged in an array on the substrate and arranged corresponding to the black matrixes respectively. The light emitting layer is disposed on the drive transistors. An opening region is arranged between each two adjacent black matrixes. The light emitting layer includes multiple light-emitting material layers arranged in an array. Each light-emitting material layer defines a display region and a non-display region. Each opening region is arranged corresponding to each display region, and each non-display region is arranged corresponding to each black matrix. Each display region coincides with each opening region between the black matrixes on the substrate.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: May 11, 2021
    Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd.
    Inventors: Yuejun Tang, Xueyun Li
  • Patent number: 11004910
    Abstract: A display device includes an optical filter substrate including: a substrate; a first color filter on the substrate; a second color filter on the substrate, the second color filter spaced apart from the first color filter; a first color conversion element on the first color filter, the first color conversion element converting incident light into light of a first color; a second color conversion element on the second color filter, the second color conversion element converting the incident light into light of a second color; and a black matrix located between the first color conversion element and the second color conversion element, and between the first color filter and the second color filter.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: May 11, 2021
    Inventors: Euisuk Jung, Jihyun Kim, Junhong Park, Jun Chun, Hoon Kang, Jeongmin Park
  • Patent number: 10998389
    Abstract: The present disclosure discloses a pixel defining layer, a display substrate, and manufacturing methods thereof, and relates to the field of display technology. The pixel defining layer includes: a defining layer body, and a temperature-sensitive polymer layer located on an inner side surface of the defining layer body. The temperature-sensitive polymer layer has a solution temperature threshold, and the hydrophilicity and hydrophobicity of the temperature-sensitive polymer layer are different under temperatures of the temperature-sensitive polymer layer higher and lower than the solution temperature threshold. By changing the temperature of the temperature-sensitive polymer layer to be higher or lower than the solution temperature threshold thereof, the temperature-sensitive polymer layer is converted from hydrophilic to hydrophobic.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: May 4, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Qing Dai
  • Patent number: 10991903
    Abstract: A display panel includes an auxiliary electrode on a base substrate, a first electrode spaced from the auxiliary electrode, a first light emitting unit on the auxiliary electrode and the first electrode, an conductive thin film layer on the first light emitting unit, a second light emitting unit on the conductive thin film layer, a first contact hole through the conductive thin film layer to expose the auxiliary electrode, a insulating layer in the first contact hole, and a second electrode including a first electrode part and a second electrode part, the first electrode part being on the insulating layer in the first contact hole, and the second electrode part overlapping the first electrode and being on the second light emitting unit, in which the insulating layer is between the first electrode part and the conductive thin film layer.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: April 27, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ilseok Park, Sangyeol Kim, Jungyeon Kim, Byeongmin Jang, Woosik Jeon, Junkyung Cho
  • Patent number: 10991915
    Abstract: Embodiments described herein generally relate to organic light-emitting diodes (OLEDs) comprising a substrate, a light extraction layer, a first electrode, one or more organic layers, and a second electrode. In some embodiments, the light extraction layer is positioned between the substrate and the first electrode. According to some embodiments, an interface between the light extraction layer and the first electrode comprises a grating structure. The grating structure may, in certain cases, promote outcoupling of light generated within the OLED (e.g., through diffraction).
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: April 27, 2021
    Assignee: UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INCORPORATED
    Inventors: Franky Fat Kei So, Kirk S. Schanze, Xiangyu Fu, Wooram Youn
  • Patent number: 10989399
    Abstract: An electroluminescent light device includes a substrate, an emission element disposed on a first surface of the substrate and defining an emission area, first and second pads disposed on the first surface of the substrate in a non-emission area of the substrate, a touch layer disposed on a second surface of the substrate opposite the first surface, and a cover plate attached on a bottom surface of the touch layer.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: April 27, 2021
    Assignee: LG Display Co., Ltd.
    Inventors: Jungeun Lee, JongMin Kim, HwanKeon Lee, Taeok Kim
  • Patent number: 10991905
    Abstract: An organic EL element includes a support substrate, an organic EL portion that is disposed on the support substrate and is formed by stacking a first electrode layer, an organic functional layer, and a second electrode layer, a sealing member that seals the organic EL portion, and one or more moisture absorbing portions that have moisture absorption characteristics. The moisture absorbing portion is disposed in an outer edge portion of a light emitting area of the organic EL portion in which the first electrode layer, the organic functional layer, and the second electrode layer are sequentially continuously superimposed when viewed in a stacking direction of the organic EL portion. An area of the moisture absorbing portion disposed on the light emitting area is smaller than an area of the light emitting area.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: April 27, 2021
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Masato Shakutsui, Masaya Shimogawara, Shinichi Morishima
  • Patent number: 10991778
    Abstract: The present invention is equipped with: a substrate (10) that has a surface upon which a drive circuit containing a TFT (20) is formed; a planarization film (30) that makes the surface of the substrate planar by covering the drive circuit; and an organic light-emitting element (40) that is provided with a first electrode (41) formed upon the surface of the planarization film and connected to the drive circuit, an organic light-emitting layer (43) formed upon the first electrode, and a second electrode (44) formed upon the organic light-emitting layer. In addition, the planarization film has a two-layer structure comprising an inorganic insulating film (31) and an organic insulating film (32) that are layered upon the TFT, a conductor layer containing a titanium layer and a copper layer is embedded in the interior of a contact hole, and the first electrode is formed electrically connected to the conductor layer.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: April 27, 2021
    Assignee: SAKAI DISPLAY PRODUCTS CORPORATION
    Inventor: Katsuhiko Kishimoto
  • Patent number: 10981876
    Abstract: The present specification provides a spiro structured compound represented by the following Chemical Formula 1 and an organic light emitting device including the same: wherein L1, n, Ar1, R1 to R7, p, q, r, s, and t are defined herein.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: April 20, 2021
    Inventors: Yongbum Cha, Jin Joo Kim, Sang Duk Suh
  • Patent number: 10985343
    Abstract: A display panel and manufacturing method thereof, and electronic device are provided. The display panel comprises a flexible substrate, thin film transistor layer comprising a drain, anode layer, light-emitting layer, cathode layer and photoresist layer arranged sequentially in a stacked manner, wherein the anode layer and drain are electrically connected; the photoresist layer comprises a first photoresist layer, second photoresist layer and third photoresist layer arranged sequentially at intervals; all of the first, second and third photoresist layer are disposed on the surface of cathode layer; a first dielectric layer filling the space between the first and second photoresist layer, and a second dielectric layer filling the space between the second and third photoresist layer are included, and the first and second dielectric layer are used to absorb light incident from one side of photoresist layer away from cathode layer so as to improve contrast of the display panel.
    Type: Grant
    Filed: May 21, 2018
    Date of Patent: April 20, 2021
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Wenjing Yu, Seungkyu Choi
  • Patent number: 10978643
    Abstract: An organic light-emitting device includes a first electrode; a second electrode; an emission layer between the first electrode and the second electrode; a hole transport region between the first electrode and the emission layer; and an electron transport region between the emission layer and the second electrode, wherein the hole transport region includes a hole auxiliary layer and the electron transport region includes an electron auxiliary layer. The organic light-emitting device may have high efficiency and long life span characteristics.
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: April 13, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jungsub Lee, Seulong Kim, Younsun Kim, Dongwoo Shin, Naoyuki Ito
  • Patent number: 10978490
    Abstract: An object is to control composition and a defect of an oxide semiconductor, another object is to increase a field effect mobility of a thin film transistor and to obtain a sufficient on-off ratio with a reduced off current. A solution is to employ an oxide semiconductor whose composition is represented by InMO3(ZnO)m, where M is one or a plurality of elements selected from Ga, Fe, Ni, Mn, Co, and Al, and m is preferably a non-integer number of greater than 0 and less than 1. The concentration of Zn is lower than the concentrations of In and M. The oxide semiconductor has an amorphous structure. Oxide and nitride layers can be provided to prevent pollution and degradation of the oxide semiconductor.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: April 13, 2021
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunichi Ito, Toshinari Sasaki, Miyuki Hosoba, Junichiro Sakata
  • Patent number: 10971697
    Abstract: It is an object of the present invention to provide a light-emitting device where periphery deterioration can be prevented from occurring even when an organic insulating film is used as an insulating film for the light-emitting device. In addition, it is an object of the present invention to provide a light-emitting device where reliability for a long period of time can be improved. A structure of an inorganic film, an organic film, and an inorganic film is not continuously provided from under a sealing material under a cathode for a light-emitting element. In addition, penetration of water is suppressed by defining the shape of the inorganic film that is formed over the organic film even when a structure of an inorganic film, an organic film, and an inorganic film is continuously provided under a cathode for a light-emitting element.
    Type: Grant
    Filed: March 2, 2020
    Date of Patent: April 6, 2021
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Kaoru Tsuchiya, Ayumi Sato
  • Patent number: 10960830
    Abstract: Viscous liquid rubber compositions are applied to articles by brushing, rolling, pouring, or dipping to repair leaks or to modify the appearance and/or physical properties of the article, such as water-permeability, thermal insulation, shock resistance, vibration resistance, electrical insulation, and the like.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: March 30, 2021
    Assignee: Swift IP, LLC
    Inventor: Philip Swift
  • Patent number: 10964759
    Abstract: A display device includes a display element configured to generate a first color light, an encapsulation member on the display element and including an inorganic layer at an outermost portion thereof, a color conversion layer on the encapsulation member and including a first color conversion part configured to transmit the first color light, a second color conversion part configured to convert the first color light into a second color light, and a third color conversion part configured to convert the first color light into a third color light, and a buffer layer between the encapsulation member and the color conversion layer, wherein a difference in refractive index between the buffer layer and the inorganic layer is about 0.5 or less.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: March 30, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Soodong Kim, Sunyoung Kwon, Songyi Kim, Jinwon Kim, Kyoungwon Park
  • Patent number: 10964756
    Abstract: The present disclosure provides a pixel structure, a display panel and a fabrication method thereof, and a display device. The pixel structure includes a substrate and an inorganic photoluminescent layer formed on the substrate. The pixel structure incudes an excitation layer disposed on a side of the inorganic photoluminescent layer away from the substrate and configured to excite the inorganic photoluminescent layer to emit light. The pixel structure includes an organic light-emitting layer in the same layer as the excitation layer. A space is disposed between the organic light-emitting layer and the excitation layer. An orthographic projection of the excitation layer on the substrate overlaps at least partially an orthographic projection of the inorganic photoluminescent layer on the substrate.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: March 30, 2021
    Assignees: CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhijian Qi, Ni Yang, Yunze Li, Hengyi Xu, Cuilian Li, Xuebo Liang
  • Patent number: 10962825
    Abstract: A display panel is provided, including an organic electroluminescent device including an anode layer, a liquid crystal cell on a light exit side of the organic electroluminescent device. The liquid crystal cell includes a liquid crystal layer, a linear polarizer on a side of the liquid crystal cell facing away from the organic electroluminescent device and configured to convert ambient light into a first polarized light, and an electrode assembly configured to control deflection of liquid crystal molecules in the liquid crystal layer to convert reflected light from the anode layer into a second polarized light. A second polarization direction of the second polarized light is different from a first polarization direction of the first polarized light. The display panel may decrease the intensity of reflected light perceived by the user when viewing the displayed image in an ambient environment.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: March 30, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Wei Qin, Kuanjun Peng, Xiaolong Li, Tieshi Wang, Xueling Gao, Jintao Peng, Shengnan Li
  • Patent number: 10957831
    Abstract: A light emitting device includes a light emitting element, a light-transmissive member covering the light emitting element, a fluorescent material contained in the light-transmissive member, and a multilayer film disposed on the light-transmissive member and including alternatively layered two types of films of different refractive indices, in which the two types of films are aggregated nano-particles of TiO2 and aggregated nano-particles of SiO2.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: March 23, 2021
    Assignee: NICHIA CORPORATION
    Inventor: Koji Abe
  • Patent number: 10957875
    Abstract: Disclosed is a display apparatus for protecting a side surface of a substrate from the outside. The display apparatus includes a base substrate including a stepped portion, a buffer layer provided on the base substrate, a pixel array layer provided on the buffer layer, an encapsulation substrate provided on the pixel array layer, and a cover layer covering a side surface of the encapsulation substrate. The buffer layer covers the stepped portion of the base substrate.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: March 23, 2021
    Assignee: LG Display Co., Ltd.
    Inventors: JiHun Song, UnJung Kim, MinSeok Kim
  • Patent number: 10950665
    Abstract: An organic light emitting display device is disclosed. The organic light emitting display device includes a first light emitting part between an anode and a cathode, the first light emitting part having a first light emitting layer, and a second light emitting part between the first light emitting part and the cathode, the second light emitting part having a second light emitting layer and a third light emitting layer, wherein the second light emitting layer includes a hole-type host and a first electron-type host, and the third light emitting layer includes a first electron-type host and a second electron-type host.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: March 16, 2021
    Assignee: LG Display Co., Ltd.
    Inventors: Jaeseung Jang, Jaeil Song, DongHyuk Kim
  • Patent number: 10950680
    Abstract: A light-emitting display device includes a substrate having a plurality of subpixels; a first electrode provided in each of the subpixels; a bank defining an emission part in each of the subpixels and having an upper surface that has a larger degree of surface roughness than an upper surface of the first electrode; a first common layer over the subpixels and covering the first electrode and the bank; a light-emitting layer on the first common layer and corresponding to the emission part of each of the subpixels; and a second common layer and a second electrode stacked on the light-emitting layer over the plurality of subpixels.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: March 16, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Dong-Hyeok Lim, Song-Yi Jeong, Kyu-Il Han, Nam-Seok Yoo, Yu-Ri Park
  • Patent number: 10950669
    Abstract: A display device includes a light-emitting element, a thin film encapsulation layer disposed on the light-emitting element, a protection layer disposed on the thin film encapsulation layer, a first sensing electrode disposed on the protection layer, an insulating layer disposed on the first sensing electrode, and a second sensing electrode disposed on the insulating layer, in which at least one of the thin film encapsulation layer and the insulating layer has a multi-layer structure including first and second alternating layers forming at least three layers, and the first layer includes a first material having a first refractive index and the second layer includes a second material having a second refractive index different from the first refractive index.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: March 16, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang Wook Lee, Chang Ok Kim, Heon Sik Ha
  • Patent number: 10948791
    Abstract: A liquid crystal device including a base member that is transmissive, a pixel electrode that is transmissive, a first insulator that is transmissive and that is disposed between the base member and the pixel electrode, and a second insulator that is transmissive and that surrounds and abuts the first insulator in a plan view from a thickness direction of the base member. The first insulator includes a first portion having a refractive index higher than a refractive index of the second insulator, and a second portion positioned between the base member and the first portion and having a refractive index lower than the refractive index of the first portion and higher than the refractive index of the second insulator.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: March 16, 2021
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Yutaka Tsuchiya
  • Patent number: 10950813
    Abstract: An optical modifier may include a color controller including quantum dots, a barrier layer encapsulating the color controller, and a low refractive layer spaced apart from the color controller with the barrier layer interposed between the color controller and the barrier layer. The barrier layer may have a layer density ranging from 1.50 g/cm3 to 3.0 g/cm3.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: March 16, 2021
    Inventors: Hongbeom Lee, Young-hoon Lee, Taewoo Lim, Hongkee Jung, Dongwoo Kim, Wontae Kim, Cheonjae Maeng, Keunwoo Park, Seongyeon Lee, Minsu Kim, Dongil Son
  • Patent number: 10947451
    Abstract: Provided is a method of producing a nitride fluorescent material containing silicon nitride particles containing Eu, at least one alkaline earth metal selected from the group consisting of Mg, Ca, Sr, and Ba, Al, and fluorine in a composition of the silicon nitride particles. The method includes heat treating a raw material mixture containing an Eu source, a source of the alkaline earth metal, an Al source, an Si source, and an alkaline earth metal fluoride containing at least one selected from the group consisting of Mg, Ca, Sr, and Ba, wherein a molar content ratio of fluorine atom to Al is from 0.02 to 0.3.
    Type: Grant
    Filed: February 2, 2020
    Date of Patent: March 16, 2021
    Assignee: NICHIA CORPORATION
    Inventors: Hiroyuki Watanabe, Shoji Hosokawa
  • Patent number: 10944031
    Abstract: A solid state lighting package is provided. The package comprising at least one LED element positioned on a top surface of a substrate and a conformal reflective layer of inorganic particles, whereby at least of portion of the light emitted by the LED element is reflected by the conformal reflective layer. A method of manufacturing a solid state lighting package comprising the distribution of inorganic particles, and a method of increasing the luminous flux thereof, is also provided.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: March 9, 2021
    Assignee: Cree, Inc.
    Inventor: Peter Andrews
  • Patent number: 10934248
    Abstract: A compound represented by the general formula (11) is useful as a light-emitting material. R1, R2, R4 and R5 represent a group represented by the general formula (2), R11 to R20 represent a hydrogen atom or a substituent, and L12 represents a substituted or unsubstituted arylene group or a substituted or unsubstituted heteroarylene group.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: March 2, 2021
    Assignee: KYULUX, INC.
    Inventors: Chihaya Adachi, Takuma Yasuda, Ryosuke Kondo, Masaki Numata, Jun-Yun Kim, Inseob Park
  • Patent number: 10934014
    Abstract: A small thin display unit that can be installed in the flight deck for displaying only flight crew-selected tactical information needed for the task at hand. The flight crew can select the tactical information to be displayed by means of any conventional user interface. Whenever the flight crew selects tactical information for display, the user interface sends a corresponding request for tactical information to a computer system. The computer system processes the request, including periodically retrieving measured current values or computing current values for the requested tactical parameters and returning those current tactical parameter values to the display unit for display.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: March 2, 2021
    Assignee: The Boeing Company
    Inventors: Syed Tahir Shafaat, Tan Nhat Che, Julian Ametsitsi, Charles Frederick Bell
  • Patent number: 10930713
    Abstract: A display panel, including a light source configured to emit blue light; and a quantum dot color filter layer including: a red light converter including a red quantum dot particle configured to convert the blue light into red light, a green light converter including a green quantum dot particle configured to convert the blue light into green light, a light transmitting portion configured to transmit the blue light, and a white light generator including a first region and a second region, wherein the first region comprises a plurality of yellow quantum dot particles configured to convert the blue light into yellow light, wherein the second region transmits the blue light.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: February 23, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Kye Hoon Lee
  • Patent number: 10930877
    Abstract: Provided is a display apparatus and a method of manufacture. The display apparatus includes a first substrate with a plurality of organic electroluminescence devices, a second substrate with a color filter, the second substrate facing the first substrate, and an adhesive layer disposed between the first substrate and the second substrate so as to cover the plurality of organic electroluminescence devices, the adhesive layer being made of a material selected from the group consisting of a phenol resin, a melanin resin, an unsaturated polyester resin, an epoxy resin, a silicon resin and a polyurethane resin.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: February 23, 2021
    Assignee: Joled, Inc.
    Inventors: Yuichi Iwase, Yasunori Kijima, Jiro Yamada
  • Patent number: 10930852
    Abstract: A light-emitting element includes a light-emitting layer including a guest, an n-type host and a p-type host between a pair of electrodes, where the difference between the energy difference between a triplet excited state and a ground state of the n-type host (or p-type host) and the energy difference between a triplet excited state and a ground state of the guest is 0.15 eV or more. Alternatively, in such a light-emitting element, the LUMO level of the n-type host is higher than the LUMO level of the guest by 0.1 eV or more, or the HOMO level of the p-type host is lower than the HOMO level of the guest by 0.1 eV or more.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: February 23, 2021
    Inventors: Shunpei Yamazaki, Satoshi Seo, Nobuharu Ohsawa, Satoko Shitagaki, Hideko Inoue, Hiroshi Kadoma, Harue Osaka, Kunihiko Suzuki, Yasuhiko Takemura
  • Patent number: 10930878
    Abstract: An organic light-emitting diode (OLED) package structure, and an OLED display panel and a method for manufacturing same are provided. The OLED package structure includes a packaging unit and a polarizing layer. The packaging unit includes a first packaging layer, a second packaging layer, and a protective layer. The polarizing layer includes a first sub polarizing layer and a second sub polarizing layer. The first sub polarizing layer is disposed between an OLED substrate and the first packaging layer, and the second sub polarizing layer is disposed between the first packaging layer and the second packaging layer.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: February 23, 2021
    Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Qi Yang
  • Patent number: 10923682
    Abstract: A display apparatus includes a substrate on which a central area having a display area and a peripheral area disposed around the central area are defined. The display apparatus includes a display area inorganic layer on the display area and extending to a portion of the peripheral area; and an encapsulation inorganic layer covering the display area, on the display area inorganic layer, and having an edge that is in parallel with or extending over an edge of the display area inorganic layer.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: February 16, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seongryong Lee, Sangwon Seo
  • Patent number: 10923633
    Abstract: A top-emitting light-emitting diode includes a glass substrate, a polysilicon layer, a white light emitting layer and a transparent conductive layer. The polysilicon layer is formed on a first surface of the glass substrate. Moreover, plural sub-wavelength structures are discretely arranged on a surface of the polysilicon layer at regular intervals. The white light emitting layer is formed over the polysilicon layer and the plural sub-wavelength structures. The transparent conductive layer is formed over the white light emitting layer.
    Type: Grant
    Filed: July 11, 2019
    Date of Patent: February 16, 2021
    Assignee: OPTO TECH CORPORATION
    Inventors: Yi-Lin Ho, Jun-Jie Lin, Lung-Han Peng
  • Patent number: 10916723
    Abstract: An organic light emitting display device may include a base substrate including an emission area at which light is emitted and a peripheral area which is adjacent to the emission area; an encapsulation substrate disposed on the base substrate; a common layer between the base substrate and the encapsulation substrate, the common layer disposed in both the emission area and the peripheral area; between the base substrate and the common layer, each of: a planarization layer; a pixel electrode in the emission area; and a pixel defining layer; and a discharging hole disposed corresponding to the pixel defining layer, the discharging hole extending through the common layer.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: February 9, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Junhee Lee, Sungmin Kim, Min Yeul Ryu, Woosik Jeon, Da-young Jung
  • Patent number: 10916592
    Abstract: An organic light-emitting diode display device includes a substrate having a plurality of pixels; first electrodes disposed on the substrate, each of which is connected to a respective one of the pixels; organic emissive layers disposed on the first electrodes; a second electrode disposed on the organic emissive layers; a touch sensing unit disposed on the second electrode; and color filters disposed on the touch sensing unit, each of which is disposed above a respective one of the pixels.
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: February 9, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Eon Joo Lee, Hyoeng Ki Kim, Jun Hyuk Woo, Kwang Woo Park, Hyeon Bum Lee, Jin Whan Jung
  • Patent number: 10910439
    Abstract: A tandem solar cell comprises a back subcell; a front subcell; and an interconnecting layer of Cr/MoO3 between the back subcell and the front subcell and connecting the two subcells in series. The front subcell may comprise a carbazole-thienyl-benzothiadiazole based polymer and the back subcell may comprise an isoindigo-based polymer. A method for making a tandem solar cell comprises a) providing a substrate layer; b) applying a layer of PCDTBT:PC71BM to the substrate layer; c) applying a bilayer of chromium and MoO3 to the PCDTBT:PC71BM layer; d) applying a layer of P(T3-iI)-2:PC71BM on the bilayer of chromium and MoO3; and e) applying a Ca and Al electrode layer on the top.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: February 2, 2021
    Inventors: Santanu Bag, Romesh J. Patel, Michael F Durstock, Benjamin J. Leever
  • Patent number: 10910580
    Abstract: An organic electroluminescent device and display, the device including a first electrode; a second electrode on the first electrode; an emission layer between the first and second electrodes; and an electron transport layer between the emission layer and the second electrode, the electron transport layer including a first electron transport layer on the emission layer; a second electron transport layer on the first electron transport layer; and a third electron transport layer on the second electron transport layer, wherein the first electron transport layer includes a first electron transport material, the second electron transport layer includes the first electron transport material, a second electron transport material, and a third electron transport material, the third electron transport layer includes the second electron transport material and the third electron transport material, and the first, second, and third electron transport materials are different from one another.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: February 2, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Eunji Choi, Jahyun Im
  • Patent number: 10910575
    Abstract: Disclosed is an electroluminescent display device that may include a substrate, a first bank layer for defining a light-emission area on the substrate, a first electrode on the light-emission area of the substrate, and a light emitting layer on the first electrode, wherein an end of the first electrode faces an end of the first bank layer.
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: February 2, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: SeungHan Paek, Jeongwon Lee, Jonghoon Yeo, Jihoon Lee
  • Patent number: 10903297
    Abstract: Disclosed is an organic light emitting display device. The organic light emitting display device including a plurality of pixels provided on a substrate. The plurality of pixels each include a first emissive area emitting light in a first surface direction of the substrate, a reflective area reflecting incident light in the first surface direction of the substrate, and a second emissive area overlapping the reflective area and emitting light in a second surface direction opposite to the first surface direction of the substrate. The organic light emitting display device may further include an auxiliary color filter provided in the first emissive area. In the organic light emitting display device, since a polarizer is replaced with a color filter, a light transmittance and a color reproduction rate are enhanced, and bidirectional image display is realized through the second emissive area.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: January 26, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventor: Hun Bae Im
  • Patent number: 10901463
    Abstract: A display device including a linear portion and a curved portion, including a first substrate including a first surface and a second surface opposite the first surface; a second substrate including a third surface and a fourth surface opposite the third surface; and a display panel disposed between the first surface of the first substrate and the fourth surface of the second substrate. An outer surface adjacent to the first surface of the first substrate protrudes outward from an outer surface adjacent to the second surface of the first substrate, and a first width of a region of the first surface of the first substrate that does not overlap with the second surface in the linear portion is greater than a second width of a region of the first surface of the first substrate that does not overlap with the second surface of the first substrate in the curved portion.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: January 26, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Geun Woo Yug, Ku Hyun Kang
  • Patent number: 10903402
    Abstract: An object of the present invention is to provide such a sealing structure that a material to be a deterioration factor such as water or oxygen is prevented from entering from external and sufficient reliability is obtained in a display using an organic or inorganic electroluminescent element. In view of the above object, focusing on permeability of an interlayer insulating film, deterioration of an electroluminescent element is suppressed and sufficient reliability is obtained by preventing water entry from an interlayer insulating film according to the present invention.
    Type: Grant
    Filed: July 25, 2019
    Date of Patent: January 26, 2021
    Inventors: Kaoru Tsuchiya, Aya Anzai, Masayuki Sakakura, Masaharu Nagai, Yutaka Matsuda
  • Patent number: 10896999
    Abstract: There is provided an electro-optical device including a light-emitting layer that has a first light-emitting element and a second light-emitting element which are adjacent to each other and a color filter layer that has a first color filter provided corresponding to the first light-emitting element and a second color filter provided corresponding to the second light-emitting element, in which an inter-element distance between the first light-emitting element and the second light-emitting element is 1.5 ?m or less, and a thickness of layer between the light-emitting layer and the color filter layer is 6 times or less the inter-element distance.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: January 19, 2021
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Takeshi Koshihara
  • Patent number: 10892297
    Abstract: A light emitting diode (LED) stack for a display includes a first LED sub-unit having a first surface and a second surface, a second LED sub-unit disposed on the first surface of the first LED sub-unit, a third LED sub-unit disposed on the second LED sub-unit, a reflective electrode disposed on the second side of the second LED sub-unit and forming ohmic contact with the first LED sub-unit, and an ohmic electrode interposed between the first LED sub-unit and the second LED sub-unit and forming ohmic contact with the first LED sub-unit, in which the second LED sub-unit and the third LED sub-unit are configured to transmit light generated from the first LED sub-unit, and the third LED sub-unit is configured to transmit light generated from the second LED sub-unit.
    Type: Grant
    Filed: November 22, 2018
    Date of Patent: January 12, 2021
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Jong Hyeon Chae, Chung Hoon Lee, Seong Gyu Jang, Chang Yeon Kim, Ho Joon Lee
  • Patent number: 10892445
    Abstract: An organic light emitting diode (OLED) lighting apparatus capable of improving lighting efficiency and lifetime by maximizing a light emitting area is disclosed. The OLED lighting apparatus may include a first electrode, which is provided with an embossing pattern at an interface at which the first electrode contacts an overcoat layer on a substrate. The first electrode may be made of a high refractive transparent conductive material, and may be arranged in an entire active area of the OLED lighting apparatus. The OLED lighting apparatus can improve light extraction efficiency through a light scattering due to a microlens effect through the first electrode provided with the embossing pattern, which facilitates elimination of a light extraction layer arranged at the interface between the substrate and the overcoat layer, thereby reducing a process yield and manufacturing cost.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: January 12, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Jongmin Kim, Taejoon Song
  • Patent number: 10886470
    Abstract: An organic light emitting display device includes a substrate, a semiconductor pattern disposed on the substrate, a conductive line disposed in a different layer from the semiconductor pattern, a pixel electrode disposed on the conductive line and on the semiconductor pattern, and a connection electrode disposed in a same layer as the pixel electrode. The connection electrode may be connected to the semiconductor pattern and the conductive line.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: January 5, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyuk Soon Kwon, Chun Gi You, Sun Park, Jong Moo Huh