Patents Assigned to Joled, Inc.
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Patent number: 11800741Abstract: A display unit including a first substrate and a second substrate that are disposed to face each other, a first organic insulating layer on the first substrate, a plurality of light-emitting elements arrayed in a display region, the display region on the first organic insulating layer and facing the second substrate and a first moisture-proof film covering the first organic insulating layer in a peripheral region, in which the peripheral region is provided on the first substrate and surrounds the display region.Type: GrantFiled: July 19, 2021Date of Patent: October 24, 2023Assignee: JOLED, INC.Inventors: Takatoshi Saito, Kenichi Izumi, Shinichi Teraguchi, Tadakatsu Nakadaira, Mikihiro Yokozeki, Shota Nishi, Manabu Kodate
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Patent number: 11069878Abstract: A display unit including a first substrate and a second substrate that are disposed to face each other, a first organic insulating layer on the first substrate, a plurality of light-emitting elements arrayed in a display region, the display region on the first organic insulating layer and facing the second substrate and a first moisture-proof film covering the first organic insulating layer in a peripheral region, in which the peripheral region is provided on the first substrate and surrounds the display region.Type: GrantFiled: September 16, 2019Date of Patent: July 20, 2021Assignee: JOLED, INC.Inventors: Takatoshi Saito, Kenichi Izumi, Shinichi Teraguchi, Tadakatsu Nakadaira, Mikihiro Yokozeki, Shota Nishi, Manabu Kodate
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Patent number: 10930877Abstract: 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: GrantFiled: February 14, 2019Date of Patent: February 23, 2021Assignee: Joled, Inc.Inventors: Yuichi Iwase, Yasunori Kijima, Jiro Yamada
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Patent number: 10872946Abstract: A display apparatus including: a display region provided with a plurality of pixel portions; wires installed to the respective pixel portions within the display region from an outside of the display region for transmitting a signal to drive the respective pixel portions; connection pads provided on the outside of the display region and serving as input portions to provide the wires with a signal while electrically conducting with the wires; switch elements provided on the outside of the display region in a middle of the wires; and a light shielding covering portion shielding the switch elements from light and formed to cover the connection pads while electrically conducting with the connection pads.Type: GrantFiled: November 22, 2019Date of Patent: December 22, 2020Assignee: JOLED, INC.Inventors: Shinya Tamonoki, Hiroshi Sagawa
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Patent number: 10727441Abstract: A display device includes: a panel unit that includes pixel drive circuits; and a panel terminal unit on an edge portion of the panel unit. The panel terminal unit includes: a board; wiring electrodes disposed on the board and connected to the pixel drive circuits; a mounted component mounted on the board and connected to the wiring electrodes; a protective film that is on the board and covers the wiring electrodes except for a mounting area where the mounted component is mounted on the board; and a resin portion that covers the mounted component and a portion of the protective film and not covers a rest of the protective film.Type: GrantFiled: June 28, 2019Date of Patent: July 28, 2020Assignee: JOLED, INC.Inventor: Yuki Kishi
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Publication number: 20190221772Abstract: A display unit including a first substrate and a second substrate that are disposed to face each other, a first organic insulating layer on the first substrate, a plurality of light-emitting elements arrayed in a display region, the display region on the first organic insulating layer and facing the second substrate and a first moisture-proof film covering the first organic insulating layer in a peripheral region, in which the peripheral region is provided on the first substrate and surrounds the display region.Type: ApplicationFiled: March 22, 2019Publication date: July 18, 2019Applicant: JOLED, INC.Inventors: Takatoshi Saito, Kenichi Izumi, Shinichi Teraguchi, Tadakatsu Nakadaira, Mikihiro Yokozeki, Shota Nishi, Manabu Kodate
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Patent number: 10312308Abstract: A light emitting device includes: a base substrate; banks extending in a direction along a surface of the base substrate; and light emitting elements extending along the direction in groove regions defined by the banks. Each light emitting element includes one or more functional layers between a pair of electrodes. Within at least one of the groove regions: a sub-bank extends along the one direction and has a height equal to or smaller than a height of the banks; for each of the one or more functional layers in the groove regions, portions of each of the one or more functional layers on each side of the sub-bank are made of a same material; and a thickness of the one or more functional layers is smaller than a height of the sub-bank.Type: GrantFiled: May 8, 2018Date of Patent: June 4, 2019Assignee: JOLED, INC.Inventor: Masakazu Takata
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Patent number: 10305068Abstract: An organic EL element includes an anode, a light emitting layer, a functional layer, a cathode, and a low refractive index layer. The light emitting layer is disposed above the anode. The functional layer is disposed on and in contact with the light emitting layer and includes a first metal. The cathode is disposed on and in contact with the functional layer and is made of a light transmissive metal oxide. The low refractive index layer is disposed on and in contact with the cathode. Refractive index of the low refractive index layer is smaller than refractive index of the cathode, film thickness of the functional layer is from 15 nm to 35 nm, and a distance between an anode-side surface of the light emitting layer and an interface between the cathode and the low refractive index layer is 110 nm or greater.Type: GrantFiled: February 21, 2018Date of Patent: May 28, 2019Assignee: JOLED, INC.Inventors: Hideyuki Shirahase, Hiroyuki Ajiki, Jun Hashimoto, Masaki Nishimura
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Patent number: 10304379Abstract: A display device includes: a display unit which includes a plurality of pixels each including an organic EL element; and a control unit which adjust a value of a luminance signal to be supplied to a target pixel to be corrected, such that an actual luminance of the target pixel is equal to a reference luminance, the reference luminance being an actual luminance of a reference pixel obtained when the luminance signal to be supplied to the target pixel is supplied to the reference pixel. The reference pixel has predetermined attenuation characteristics for light emission amount.Type: GrantFiled: May 12, 2015Date of Patent: May 28, 2019Assignee: JOLED, INC.Inventors: Masafumi Matsui, Eiji Iwauchi, Tomoyuki Maeda
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Patent number: 10283579Abstract: There is provided a semiconductor device that includes a substrate, an electric field shielding layer, and a semiconductor element. The electric field shielding layer is provided on the substrate. The semiconductor element includes an electrode, and is provided on the electric field shielding layer with an insulating film in between.Type: GrantFiled: January 26, 2018Date of Patent: May 7, 2019Assignee: JOLED, Inc.Inventors: Yuichiro Ishiyama, Yuichi Kato, Tomoatsu Kinoshita, Takashige Fujimori, Kenta Masuda, Keiichi Akamatsu
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Patent number: 10008670Abstract: A method of peeling a laminate according to the disclosure includes: forming a first adhesive layer on a first substrate, the first adhesive layer having adhesive force that satisfies the following Expression (1) and one or both of the following Expressions (2) and (3); firmly attaching a second substrate onto the first adhesive layer; forming a first functional layer on the second substrate; and peeling off the first substrate from the second substrate.Type: GrantFiled: September 22, 2016Date of Patent: June 26, 2018Assignee: JOLED, Inc.Inventors: Kenichi Izumi, Keisuke Shimokawa, Shin Akasaka, Hiroyuki Abe, Shinpei Irie, Takatoshi Saito
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Patent number: 9935165Abstract: There is provided a semiconductor device that includes a substrate, an electric field shielding layer, and a semiconductor element. The electric field shielding layer is provided on the substrate. The semiconductor element includes an electrode, and is provided on the electric field shielding layer with an insulating film in between.Type: GrantFiled: July 11, 2016Date of Patent: April 3, 2018Assignee: JOLED, INC.Inventors: Yuichiro Ishiyama, Yuichi Kato, Tomoatsu Kinoshita, Takashige Fujimori, Kenta Masuda, Keiichi Akamatsu
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Patent number: 9595601Abstract: A method of fabricating a thin-film transistor substrate including a thin-film semiconductor includes: forming a metal film mainly comprising Cu above a substrate; forming a source electrode and a drain electrode by processing the metal film in a predetermined shape; irradiating the source electrode and the drain electrode with nitrogen plasma; exposing surfaces of a top and an end portion of the source electrode and the drain electrode with silane (SiH4) gas; and forming an insulating layer comprising an oxide on the source electrode and the drain electrode.Type: GrantFiled: December 2, 2015Date of Patent: March 14, 2017Assignee: JOLED, INC.Inventors: Yuichiro Miyamae, Kenichirou Nishida, Toru Saito
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Patent number: 9514679Abstract: A display device includes a display unit including luminescence pixels each including a luminescence element and a driving transistor configured to supply a current to the luminescence element to cause the element to emit light, a signal line driving circuit configured to supply a voltage applied between a gate and a source of the driving transistor, and a control circuit configured to apply a certain voltage between the gate and the source of the driving transistor by controlling the signal line driving circuit and the display unit when a power supply to the signal line driving circuit is stopped. The control circuit applies the certain voltage between the gate and the source of the driving transistor so that a recovery of a shift amount of a threshold voltage of the driving transistor is suppressed, the recovery being made when the power supply to the signal line driving circuit is stopped.Type: GrantFiled: October 22, 2014Date of Patent: December 6, 2016Assignee: JOLED, INC.Inventors: Hiroshi Hayashi, Shinya Ono
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Patent number: 9252197Abstract: A display panel includes: a plurality of pixel circuits formed in a matrix on a substrate; an insulating layer covering the plurality of pixel circuits; a plurality of light emitting elements connected to the plurality of pixel circuits, and arranged in a matrix on the insulating layer; a filtering layer including a light transmitting section at least in a part of a region facing the light emitting element and a light shielding section formed in a same plane as the light transmitting section, and formed on an opposite side from the pixel circuit in relation to the light emitting element; a light reflecting section formed in a region facing the light shielding section, and between the light emitting element and the filtering layer; and a light receiving element formed in a region facing the light shielding section, and on the pixel circuit side in relation to the light emitting element.Type: GrantFiled: February 24, 2014Date of Patent: February 2, 2016Assignee: JOLED, Inc.Inventors: Kazuo Nakamura, Katsuhide Uchino, Nobutoshi Asai, Hiroshi Sagawa
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Patent number: 9202413Abstract: A drive method of a display device includes the steps of: performing threshold voltage cancel processing at least once, which changes a potential of a second node of a display device toward a potential obtained by subtracting a threshold voltage of a drive transistor from a potential of a first node by applying a given drive voltage to one source/drain region of the drive transistor from a feeding line while maintaining the potential of the first node; and then, performing writing processing which applies a video signal to the first node from a data line through a write transistor, wherein the sum of lengths of periods in which the threshold voltage cancel processing is performed is so set as to be shorter as a frame frequency becomes higher.Type: GrantFiled: October 31, 2014Date of Patent: December 1, 2015Assignee: JOLED, Inc.Inventors: Tetsuo Minami, Katsuhide Uchino
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Patent number: 9123669Abstract: A display unit is provided. The display unit includes a plurality of pixels having first to third sub-pixels each of which corresponds to respective colors of red, green, and blue, and a fourth sub-pixel exhibiting higher luminance than the first to third sub-pixels. In each of the pixels, the first to fourth sub-pixels have light-emitting devices. In the first to third sub-pixels, color filters are provided, and in the fourth sub-pixel, the transmittance of light emitted from the light-emitting device is configured to be reduced at a partial or whole region of the fourth sub-pixel. A difference in the transmittance among the first to third sub-pixels having the color filters and the fourth sub-pixel having no color filter is reduced to ensure an excellent luminance balance, which makes it easy to represent desired chromaticity.Type: GrantFiled: September 25, 2012Date of Patent: September 1, 2015Assignee: JOLED, INC.Inventor: Yuusuke Fujino
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Patent number: 9019323Abstract: A display device according to the present invention includes: a variable voltage source which supplies a supply voltage to an organic EL display unit; and a voltage regulating unit which regulates an external application voltage output by the variable voltage source, the organic EL display unit further includes an anode-side power source line network and a cathode-side power source line network connected to the pixels and the variable voltage source, the display device further includes a voltage measuring unit which measures a voltage for a monitor pixel, and the voltage regulating unit which calculates distributions of voltage drop amount generated in the anode-side power source line network and the cathode-side power source line network, calculates a voltage for the monitor pixel from the distributions of the voltage drop amount calculated, and regulates the supply voltage based on the calculation result and the voltage measured by the voltage measuring unit.Type: GrantFiled: July 13, 2012Date of Patent: April 28, 2015Assignee: Joled, Inc.Inventors: Toshiyuki Kato, Kohei Ebisuno