Patents Assigned to Sharp Display Technology Corporation
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Patent number: 12761497Abstract: A display device includes a display, a polarization module placed overlapping the display, the polarization module being configured to actively switch a polarization state between a first polarization state and a second polarization state, and a controller. The controller is configured to generate second image data from first image data, cause the display to display a first image based on the first image data and a second image based on the second image data in a time division manner, and switch the polarization state of the polarization module to the first polarization state in a case in which the first image is displayed and to the second polarization state in a case in which the second image is displayed in synchronization with a timing of the time division.Type: GrantFiled: April 18, 2024Date of Patent: October 13, 2026Assignee: Sharp Display Technology CorporationInventors: Masamitsu Kobayashi, Takafumi Miura
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Patent number: 12757596Abstract: A display device includes a resin substrate, a thin film transistor layer, and a light-emitting element layer. A frame region is provided surrounding a display region. A terminal portion is provided at an end portion of the frame region. A bending portion is provided between the display region and the terminal portion. A slit is provided at the bending portion in an inorganic insulating film. A resin filling film is provided at the bending portion. A plurality of lead wiring lines are provided on the resin filling film. Protrusions and recesses, each extending in a direction intersecting an extending direction of the bending portion, are alternately disposed in the extending direction of the bending portion on a surface of the resin filling film. At least one of the plurality of lead wiring lines is provided on a protrusion of the protrusions.Type: GrantFiled: July 27, 2021Date of Patent: October 6, 2026Assignee: Sharp Display Technology CorporationInventors: Takao Saitoh, Yohsuke Kanzaki, Masaki Yamanaka, Masahiko Miwa, Yi Sun, Masaki Fujiwara
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Patent number: 12751162Abstract: In a chip mounting portion, a plurality of chip terminals arranged in a row and a plurality of terminal wiring lines corresponding to the plurality of chip terminals, the plurality of terminal wiring lines extending parallel to one another and being electrically connected to the plurality of chip terminals, respectively, are provided. For at least one chip terminal of the plurality of chip terminals, a chip support body is provided at each terminal wiring line with the chip support body overlapping the terminal wiring line corresponding to the at least one chip terminal or an extension line of the terminal wiring line.Type: GrantFiled: June 24, 2021Date of Patent: September 29, 2026Assignee: Sharp Display Technology CorporationInventors: Yukio Shimizu, Shinzoh Murakami
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Patent number: 12744017Abstract: A unit circuit of a gate drive circuit includes first to fourth transistors. The first transistor outputs a drive signal to a gate line. The second transistor is a transistor to which a set signal is inputted and which charges a node. The third transistor is a transistor to which a first reset signal is inputted and which discharges the node to a ground potential. The fourth transistor is a transistor to which a second reset signal supplied at a time point later than the first reset signal is inputted and which discharges the node to a gate-off voltage.Type: GrantFiled: September 4, 2025Date of Patent: September 22, 2026Assignee: SHARP DISPLAY TECHNOLOGY CORPORATIONInventors: Yohei Takeuchi, Tatsuya Kawasaki, Kengo Hara, Masafumi Sugino, Hajime Imai
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Patent number: 12738245Abstract: A scanning signal line drive circuit as a GDM circuit is composed of a plurality of cascade-connected unit circuits and is operated by a multi-phase clock signal in which pulses partially overlap. The nth stage unit circuit includes: an internal node; a diode-connected set transistor connected to a set input terminal; a reset transistor including a drain terminal connected to the internal node, a source terminal connected to a reset state voltage terminal, and a gate terminal connected to the reset input terminal; and an output circuit including an output transistor connected to a clock input terminal and a capacitor, a scanning signal G(n?2), a scanning signal G(n+2), and a scanning signal G(n+1) being supplied to the set input terminal, the reset input terminal, and the reset state voltage terminal, respectively.Type: GrantFiled: May 6, 2025Date of Patent: September 15, 2026Assignee: Sharp Display Technology CorporationInventors: Yohei Takeuchi, Jun Nishimura, Masaki Maeda, Yoshiharu Hirata, Yoshihito Hara, Tohru Daitoh
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Patent number: 12736846Abstract: A display device includes a second line, a third line, and a first line between the second and the third line, a connection line connected to the first line, a first switching line, a second switching line, a first switching component, a second switching component, and a signal supply section. The first switching component is connected to the first switching line, the second line, and the first line or the connection line. The second switching component is connected to the second switching line, the third line, and the first line or the connection line. The signal supply section is configured to supply an image signal to the connection line and supply a switching signal having a voltage higher than a threshold voltage of the first and second switching components to the first switching line and the second switching line at different timings.Type: GrantFiled: March 26, 2025Date of Patent: September 15, 2026Assignee: Sharp Display Technology CorporationInventor: Masakatsu Tominaga
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Patent number: 12735667Abstract: A cell culture substrate includes a base, a first segment disposed on the base and occupying a part of one surface of the cell culture substrate, and a second segment disposed on the base and occupying another part of the one surface. The second segment is formed of a metal material and thus has a relatively higher surface free energy than the first segment formed of an inorganic material. The second segment is disposed such that a percentage of an area of the second segment in a total area of the first segment and the second segment increases in a gradation direction (first direction) along the one surface.Type: GrantFiled: March 17, 2023Date of Patent: September 15, 2026Assignee: Sharp Display Technology CorporationInventors: Chihiro Tachino, Takeshi Hara, Tomoko Teranishi, Satoshi Ihida
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Patent number: 12737075Abstract: A display device with a touch panel starts a first touch detection process within an extension period, and ends the first touch detection process before a normal drive period starts. The display device with a touch panel performs a process of outputting first report data when a length of the extension period is equal to or longer than a predetermined length. The display device with a touch panel performs, after the normal drive period starts, a second touch detection process, a writing process, and a process of outputting second report data.Type: GrantFiled: May 9, 2024Date of Patent: September 15, 2026Assignee: Sharp Display Technology CorporationInventors: Daisuke Suehiro, Daiji Kitagawa, Jin Miyazawa, Yousuke Nakamura
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Patent number: 12733298Abstract: This display device includes a first light-emitting element and a second light-emitting element connected in series, and a third light-emitting element and a fourth light-emitting element connected in series. The first light-emitting element and the second light-emitting element share a second electrode formed in an upper layer above a first light-emitting layer and a second light-emitting layer, and the third light-emitting element and the fourth light-emitting element share a fourth electrode formed in an upper layer above a third light-emitting layer and a fourth light-emitting layer. The second electrode is an island-shaped electrode and functions as a cathode of one of the first light-emitting element and the second light-emitting element and an anode of the other, and the fourth electrode is an island-shaped electrode and functions as a cathode of one of the third light-emitting element and the fourth light-emitting element and an anode of the other.Type: GrantFiled: November 24, 2021Date of Patent: September 8, 2026Assignee: Sharp Display Technology CorporationInventor: Shinichi Handa
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Patent number: 12733374Abstract: An organic EL display device includes a resin substrate provided as a base substrate, a TFT layer provided on the resin substrate and in which TFTs are arranged for each subpixel, and a plurality of photo spacers provided on the TFT layer, in which a recessed portion having a caldera shape that is open upward is formed at a top portion of each photo spacer, each photo spacer and the recessed portion are formed in a circular shape in a plan view, and a ratio of a diameter of an opening end portion of the recessed portion to a diameter of a base portion of the photo spacer is greater than 0 and lower than 0.8.Type: GrantFiled: November 5, 2021Date of Patent: September 8, 2026Assignee: Sharp Display Technology CorporationInventors: Norio Murofushi, Eiji Fujimoto, Atsushi Shohji
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Patent number: 12727320Abstract: A hole injection layer included in a display device according to the disclosure contains a mixture (PEDOT/PSS) obtained by mixing polystyrene sulfonic acid (PSS) with polyethylenedioxythiophene (PEDOT), and a polymer adjacent to the PEDOT/PSS.Type: GrantFiled: June 24, 2021Date of Patent: September 1, 2026Assignee: Sharp Display Technology CorporationInventor: Makoto Kitagawa
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Patent number: 12727064Abstract: A lighting device includes a first light emitting element, a second light emitting element, and a driving circuit driving the first light emitting element and the second light emitting element. The driving circuit includes a current supply supplying currents to the first light emitting element and the second light emitting element, a first current controller controlling a magnitude of a first current supplied from the current supply to the first light emitting element, and a second current controller controlling a magnitude of a second current supplied from the current supply to the second light emitting element.Type: GrantFiled: October 15, 2024Date of Patent: September 1, 2026Assignee: Sharp Display Technology CorporationInventor: Hiroyuki Kito
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Patent number: 12718779Abstract: A display device includes a first trunk line extending in a column direction and included in a first conductive layer, a first branch wiring line connected to the first trunk line and included in a second conductive layer, a first contact hole through which a first portion of the first trunk line is exposed, and a third contact hole through a third portion of a conductive portion included in the first conductive layer is exposed, wherein, in the row direction, a range of the third portion overlaps a range of the first trunk line, in the column direction, a range of the third portion overlaps a range of the first trunk line, and an electric resistance value between the third portion and the first branch wiring line is higher than an electric resistance value between the first portion of the first trunk line and the first branch wiring line.Type: GrantFiled: March 28, 2025Date of Patent: August 25, 2026Assignee: Sharp Display Technology CorporationInventor: Hidetoshi Nakagawa
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Patent number: 12710795Abstract: In a foldable display, a third portion, in a side view thereof, includes a first arc portion, a first line segment portion, and a second line segment portion in a first posture, and includes a second arc portion in a second posture.Type: GrantFiled: July 12, 2022Date of Patent: August 18, 2026Assignee: Sharp Display Technology CorporationInventor: Yasuyuki Togashi
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Patent number: 12707802Abstract: A monolayer film is provided between a hole injection layer and the hole transport layer.Type: GrantFiled: October 15, 2021Date of Patent: August 11, 2026Assignee: Sharp Display Technology CorporationInventors: Yoshihiro Ueta, Takayuki Naka
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Patent number: 12704753Abstract: A backlight device includes light-emitting elements, supported by a substrate, that emit excitation light, a first phosphor layer containing a phosphor that produces fluorescence upon receiving the excitation light, and a partitioning member forming spaces each of which accommodates any one or more of the light-emitting elements between the substrate and the first phosphor layer. The partitioning member includes walls each of which, in a top view, encloses the one or more of the light-emitting elements accommodated in each space, apices each of which connects ones of the walls that are adjacent to each other, one or more first through-holes formed in the walls, and one or more second through-holes formed in the apices. An air gap is formed between adjacent two walls by the two walls and one of the apices that connects them. The second through-hole communicates with the first through-hole via the air gap.Type: GrantFiled: July 2, 2025Date of Patent: August 11, 2026Assignee: Sharp Display Technology CorporationInventor: Satsuki Hagihara
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Patent number: 12700382Abstract: A display device includes multiple scan lines arranged in a display region; a first scan line driving circuit outside the display region that is connected to multiple scan lines at one end in an extending direction and supplies voltages to multiple scan lines; a second scan line driving circuit outside the display region that is connected to multiple scan lines at the other end in the extending direction and supplies voltages to multiple scan lines; and a control circuit. The control circuit alternately drives either the first scan line driving circuit or the second scan line driving circuit for each predetermined frame when a refresh rate of an image displayed according to a video signal is a first refresh rate, and drives both the first scan line driving circuit and the second scan line driving circuit at a second refresh rate higher than the first refresh rate.Type: GrantFiled: September 24, 2024Date of Patent: August 4, 2026Assignee: Sharp Display Technology CorporationInventors: Tetsuya Umehara, Masahiro Takeda, Hideo Hosorogi
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Patent number: 12702039Abstract: Provided is a method of producing a micro-LED panel that can produce a micro-LED panel with excellent display quality by reducing misalignment of micro-LED chips and can achieve an increased yield. The method of producing a micro-LED panel includes: producing a micro-LED chip including a micro-LED, a first contact electrode, and a light blocking component; producing an array substrate including a switching element, a second contact electrode, and an insulating film; and placing the micro-LED chip on the array substrate. The light blocking component includes a bump with an inclined surface. The insulating film includes a dent with an inclined surface. The placing of the micro-LED chip includes electrically connecting the first contact electrode to the second contact electrode by making the bump of the light blocking component opposite to the dent of the insulating film.Type: GrantFiled: March 13, 2024Date of Patent: August 4, 2026Assignee: SHARP DISPLAY TECHNOLOGY CORPORATIONInventors: Kenya Ito, Yoshiyuki Harumoto
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Patent number: 12701887Abstract: A display device has a display area including a first pixel region, a second pixel region, and a third pixel region. The display device includes: a first electrode; a first photoelectric conversion layer including a first light-emitting layer, a second light-emitting layer, and a third light-emitting layer; a first electric charge injection layer; a second electric charge injection layer; a second photoelectric conversion layer including a fourth light-emitting layer; and a second electrode. The first light-emitting layer is provided in the first pixel region. The second light-emitting layer is provided in the second pixel region. The third light-emitting layer is provided in the third pixel region. The first electric charge injection layer is provided across the entire display area. The second electric charge injection layer is provided only in the third pixel region. The fourth light-emitting layer is provided at least in the third pixel region.Type: GrantFiled: August 2, 2021Date of Patent: August 4, 2026Assignee: Sharp Display Technology CorporationInventors: Yuto Tsukamoto, Shinichi Kawato, Tokiyoshi Umeda, Tohru Sonoda
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Patent number: 12701879Abstract: In an organic EL display device, a frame region provided outside a display region is provided with a damming wall extending on an outer periphery of the display region and a second lead-out wiring line extending across the damming wall from the display region side to an outside of the frame region. The damming wall includes a bank portion having a projecting shape and provided, in a part in which the second lead-out wiring line extends, on both sides in a direction in which the second lead-out wiring line extends with respect to a top portion of the damming wall. The bank portion is lower than a top portion of a second damming wall and forms, between the bank portion and the top portion, a trap portion having a recessed shape.Type: GrantFiled: March 25, 2021Date of Patent: August 4, 2026Assignee: Sharp Display Technology CorporationInventors: Takao Saitoh, Yohsuke Kanzaki, Masaki Yamanaka, Masahiko Miwa, Yi Sun, Masaki Fujiwara