Patents Assigned to Sharp Display Technology Corporation
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Patent number: 12379817Abstract: A touch panel includes: a first metal wire formed on an underlayer; an insulating film formed to cover the first metal wire; and a second metal wire formed on the insulating film. The second metal wire has: a first pattern extending in a first direction; and a plurality of second patterns formed to be insulated from the first pattern. The first metal wire has: a bridge pattern connecting together, in a second direction, a pair of second patterns arranged to sandwich the first pattern; and a dummy pattern formed to be insulated from the bridge pattern, the second direction intersecting with the first direction, and the pair of second patterns being included in the plurality of second patterns.Type: GrantFiled: December 29, 2021Date of Patent: August 5, 2025Assignee: Sharp Display Technology CorporationInventors: Takao Saitoh, Yohsuke Kanzaki, Masaki Yamanaka, Masahiko Miwa, Yi Sun, Masaki Fujiwara
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Patent number: 12367840Abstract: A display apparatus includes a display panel that includes a liquid-crystal panel and a backlight arranged behind the liquid-crystal panel, and a controller that controls a luminance of the backlight and a transmittance ratio of the liquid-crystal panel. The controller is configured to: when a refresh rate at which an image is displayed on the display panel is switched, vary the luminance of the backlight such that a variation of a luminance of the display panel between before and after switching of the refresh rate falls within a predetermined range; vary the transmittance ratio of the liquid-crystal panel such that the variation of the luminance of the display panel falls within the predetermined range within a time duration that lasts until the luminance of the backlight reaches a target value; and restore the original transmittance ratio of the liquid-crystal panel after elapse of the time duration.Type: GrantFiled: September 20, 2024Date of Patent: July 22, 2025Assignee: Sharp Display Technology CorporationInventors: Atsunori Nagato, Takashi Sasaki
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Patent number: 12366775Abstract: Provided is a liquid crystal element sequentially including: a first substrate; a first weak anchoring horizontal alignment film; a liquid crystal layer containing dual-frequency liquid crystal molecules; a second weak anchoring horizontal alignment film; and a second substrate. At least one of the first substrate or the second substrate includes a comb-teeth electrode for electric field generation in the liquid crystal layer. The dual-frequency liquid crystal molecules are twist-aligned between the first and second substrate with voltage applied and with no voltage applied. A direction of twist of the dual-frequency liquid crystal molecules with voltage applied and that with no voltage applied are the same. An alignment direction of dual-frequency liquid crystal molecules in a center of the liquid crystal layer in a thickness direction is orthogonal or parallel to an extension direction of the comb-teeth electrode.Type: GrantFiled: August 15, 2024Date of Patent: July 22, 2025Assignee: Sharp Display Technology CorporationInventors: Hiroaki Asagi, Kiyoshi Minoura, Daisuke Minami
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Patent number: 12360416Abstract: A color filter substrate includes first and second color filters exhibiting different colors and a light blocking portion. The light blocking portion includes a first transmissive film, a first reflective film on an upper layer side of the first transmissive film, a second transmissive film on an upper layer side of the first reflective film, and a second reflective film on an upper layer side of the second transmissive film and being thicker than the first reflective film. The first transmissive film includes a first bottom surface and a first side surface being inclined at a first angle with respect to the first bottom surface. The second reflective film includes a second bottom surface extending parallel to the first bottom surface and a second side surface being inclined at a second angle with respect to the second bottom surface. The first angle and the second angle are acute angles.Type: GrantFiled: August 2, 2024Date of Patent: July 15, 2025Assignee: Sharp Display Technology CorporationInventors: Makoto Nakazawa, Keisuke Yoshida
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Patent number: 12360417Abstract: A liquid crystal module comprises: a lens unit including at least a first lens; a liquid crystal panel; and a backlight unit, all of which are provided in a stated order, wherein the backlight unit includes: a light-guide plate; and a first light source opposite a first side face of the light-guide plate, and the light-guide plate has: the first side face; and a light-exiting face through which light incident on the first side face is discharged toward the liquid crystal panel, the light-guide plate further having a curved face portion in a cross-section in a first direction that is perpendicular to the first side face and the light-exiting face.Type: GrantFiled: August 16, 2024Date of Patent: July 15, 2025Assignee: Sharp Display Technology CorporationInventors: Junki Nakajima, Yohji Inui, Takafumi Tobi, Katsutoshi Kikuchi
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Patent number: 12353096Abstract: A display device includes: a plurality of first color filters not intersecting a non-linear portion with at least a part of an outer shape of a display region being non-linear, a plurality of second color filters at least part of which intersects the non-linear portion, a first region with the plurality of first color filters disposed, a second region with the plurality of second color filters disposed, a first light blocking portion partitioning the plurality of first color filters, a second light blocking portion partitioning the plurality of second color filters, and a spacer. An overlapping area of the second light blocking portion with respect to the plurality of second color filters is larger than that of the first light blocking portion with respect to the plurality of first color filters. A distribution density of the spacer in the second region is lower than that in the first region.Type: GrantFiled: February 25, 2023Date of Patent: July 8, 2025Assignee: Sharp Display Technology CorporationInventors: Masahiro Date, Kazuhide Akita, Eiji Shinohara, Shota Nozaki, Tadashi Okamoto, Kazuyoshi Hamanaka, Hiroto Akiyama
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Patent number: 12354525Abstract: A display apparatus includes a timing control circuit and a power converter circuit. In response to reception of a control signal used to transition from a display mode to a pause mode from a host controller, the timing control circuit transmits a pause signal to the power control circuit. The power control circuit converts an input voltage to an output voltage at a first switching frequency in the display mode before receiving the pause signal and converts the input voltage to the output voltage at a second switching frequency in the pause mode after receiving the pause signal from the timing control circuit.Type: GrantFiled: July 19, 2024Date of Patent: July 8, 2025Assignee: Sharp Display Technology CorporationInventors: Tatsuya Hayashi, Kohji Saitoh, Kazuhisa Yoshimoto
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Patent number: 12353104Abstract: An active matrix substrate includes: a base substrate; a plurality of thin film transistors provided on the base substrate corresponding to a plurality of subpixels; color filters provided on the plurality of thin film transistors, respectively, and including colored layers of predetermined colors corresponding to the plurality of subpixels, respectively; a first transparent electrode provided above the color filters; a second transparent electrode provided on the first transparent electrode with an inorganic protection film interposed therebetween, the second transparent electrode including a slit having a belt shape; and an antireflection layer provided in a belt shape on the inorganic protection film in a boundary portion between the colored layers of different colors among the predetermined colors and including a first metal layer, an intermediate layer, and a second metal layer layered in order. The antireflection layer is provided with a cut-away portion not overlapping an end portion of the slit.Type: GrantFiled: February 27, 2024Date of Patent: July 8, 2025Assignee: Sharp Display Technology CorporationInventor: Katsunori Misaki
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Patent number: 12332529Abstract: An active matrix substrate includes, in order, a pixel TFT including an oxide semiconductor layer, a first interlayer insulating layer covering the oxide semiconductor layer and a gate electrode, a first organic insulating layer, and a pixel electrode. A first pixel contact hole is formed in the first interlayer insulating layer, and a second pixel contact hole is formed in the first organic insulating layer. The pixel electrode is made of a transparent conductive material, a first electrode layer includes a first portion in contact with a drain contact region of the oxide semiconductor layer in the first pixel contact hole and a second portion located in the second pixel contact hole, a second electrode layer includes a third portion in contact with the second portion and a fourth portion located on the first organic insulating layer, and a third electrode layer includes a fifth portion in contact with the fourth portion and a sixth portion located on the second organic insulating layer.Type: GrantFiled: November 11, 2022Date of Patent: June 17, 2025Assignee: Sharp Display Technology CorporationInventors: Kuniaki Okada, Atsushi Hachiya
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Patent number: 12331181Abstract: Provided is a display device that makes a desired pattern or the like visible in the non-display state and is capable of displaying a display image without allowing perception of the complementary color of the color of the pattern or the like. The display device includes: a dot matrix display panel; and a design layer disposed in front of a front surface side of the display panel. The design layer includes a design part that includes a binder resin and light-reflective colored particles dispersed in the binder resin. The light-reflective colored particles reflect light having a specific wavelength while absorbing light having a wavelength other than the specific wavelength.Type: GrantFiled: September 19, 2023Date of Patent: June 17, 2025Assignee: Sharp Display Technology CorporationInventors: Hisashi Watanabe, Hirotoshi Yasunaga
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Patent number: 12334033Abstract: Provided is a display device including gate drive circuits, a signal line connected to the gate drive circuit, a signal line connected to the gate drive circuit, a gate terminal, inspection terminals, and a connection line. The connection line connects the signal line and the signal line. The inspection terminal is disposed on the signal line. The inspection terminal is disposed on the signal line. The inspection terminals are terminals input with an inspection signal at the time of inspection.Type: GrantFiled: August 22, 2023Date of Patent: June 17, 2025Assignee: Sharp Display Technology CorporationInventors: Satoshi Horiuchi, Akane Sugisaka, Seiya Kawamorita, Shinji Matsubara
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Patent number: 12321065Abstract: Provided is a liquid crystal display element capable of switching between a transparent state and a scattering state and of reducing or preventing a decrease in luminance in the scattering state. The liquid crystal display element includes a liquid crystal panel containing a polymer-dispersed liquid crystal containing a polymer network and a liquid crystal component, and a light source module including a light source adjacent to the liquid crystal panel and a mirror configured to reflect light emitted from the light source toward the liquid crystal panel.Type: GrantFiled: December 27, 2022Date of Patent: June 3, 2025Assignee: Sharp Display Technology CorporationInventors: Tomonori Yoshida, Yasuhiro Haseba, Kimiaki Nakamura, Koji Murata
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Patent number: 12313931Abstract: A display device according to the disclosure includes an imaging layer including imaging pixels, a light guide layer positioned as a layer above the imaging layer and including light guide elements guiding light incident from above to the imaging pixels positioned below, and a display layer positioned as a layer above the light guide layer and including pixel circuits and pixel electrodes.Type: GrantFiled: September 2, 2021Date of Patent: May 27, 2025Assignee: Sharp Display Technology CorporationInventor: Shigetsugu Yamanaka
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Patent number: 12311766Abstract: A liquid crystal display device includes a backlight module configured to switch between first light having a maximum luminance in a first direction and second light having a maximum luminance in a second direction different from the first direction and emit the first light and the second light from a main surface, a liquid crystal display panel, and a control device. The control device receives a first image and generates a first offset image based on the first image, the first offset image being an image obtained by reversing a color of the first image and having a luminance adjusted, controls the liquid crystal display panel such that a first display image including the first image and a second display image including the first offset image are alternately displayed, and controls the backlight module so that the first light is emitted when the first display image is displayed and the second light is emitted when the second display image is displayed.Type: GrantFiled: March 19, 2024Date of Patent: May 27, 2025Assignee: Sharp Display Technology CorporationInventors: Ryuzo Yuki, Naru Usukura, Junichi Masuda, Shugo Yagi
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Patent number: 12313591Abstract: A detector includes a first electrode, second electrodes forming a flow path for charged particles between the first electrode and the second electrodes, third electrodes configured to collect the charged particles, and a fourth electrode having a sheet resistance higher than sheet resistances of the second electrodes. The fourth electrode has one end portion having a first potential in a third direction and another end portion having a second potential lower than the first potential in the third direction, the fifth electrode included in the second electrodes is connected to the fourth electrode, the sixth electrode included in the second electrodes is connected to the fourth electrode, a seventh electrode included in the third electrodes is arranged side by side with the fifth electrode along a first direction, and an eighth electrode included in the third electrodes is arranged side by side with the sixth electrode along the first direction.Type: GrantFiled: July 21, 2023Date of Patent: May 27, 2025Assignee: Sharp Display Technology CorporationInventors: Manabu Daio, Tomohiro Kosaka, Kei Ikuta, Yuuki Ootsuka, Reshan Maduka Abeysinghe
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Patent number: 12315450Abstract: A display device includes a light-emitting element, a first transistor, a second transistor, a third transistor, a drive circuit, and a voltage compensation circuit. The drive circuit supplies, in an initial period, an initial voltage to a gate electrode of the first transistor, and supplies a data signal to the first electrode in a write period succeeding the initial period, and turns ON the third transistor. The voltage compensation circuit includes a first capacitive element, a second capacitive element, a first switch, and a second switch. The voltage compensation circuit switches, when the write period starts, from the state in which the second switch is ON to the state in which the second switch is OFF, and turns ON the first switch after the write period starts. The drive circuit turns ON the second transistor in a light ON period succeeding the turning ON of the first switch.Type: GrantFiled: March 12, 2024Date of Patent: May 27, 2025Assignee: Sharp Display Technology CorporationInventor: Hidekazu Miyata
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Patent number: 12313948Abstract: An active matrix substrate includes a first TFT disposed in each of pixel regions, a first flattened layer covering the first TFT, and a pixel electrode provided on the first flattened layer. The first TFT includes a lower gate electrode, a lower gate insulating layer, an oxide semiconductor layer, an upper gate insulating layer, and an upper gate electrode. The active matrix substrate further includes a first connection electrode for electrically connecting a drain contact region of the oxide semiconductor layer and the pixel electrode. The first flattened layer includes a pixel contact hole formed so as to expose a part of the first connection electrode. The bottom face of the pixel contact hole at least partially overlaps, of a lower gate metal layer including a lower gate electrode and an upper gate metal layer including an upper gate electrode, at least the lower gate metal layer when viewed from the normal direction of the substrate.Type: GrantFiled: April 10, 2024Date of Patent: May 27, 2025Assignee: Sharp Display Technology CorporationInventors: Atsushi Hachiya, Hiroaki Furukawa, Yuhichi Saitoh, Kuniaki Okada
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Patent number: 12292654Abstract: Provided is a liquid crystal display device that can achieve high-speed response in both rise time and fall time and has a high transmittance, a high contrast ratio, and excellent viewing angle characteristics. The liquid crystal display device provides color display using a field sequential driving system where each frame period includes subframe periods and includes: a liquid crystal display panel; a light source that irradiates the liquid crystal display panel with lights of multiple colors; and a controller that drives the light source to time-divisionally irradiate the liquid crystal display panel with the lights of multiple colors. The liquid crystal display panel includes, sequentially in the following order: a first substrate including pixel electrodes; a first alignment film; a liquid crystal layer; a second alignment film; and a second substrate including a common electrode.Type: GrantFiled: April 12, 2023Date of Patent: May 6, 2025Assignee: Sharp Display Technology CorporationInventors: Shinichi Terashita, Kouichi Watanabe, Fumikazu Shimoshikiryoh
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Patent number: 12287439Abstract: An X-ray image capturing apparatus includes a photoelectric conversion element, a TFT, a gate drive circuit, a control circuit, and a filter section. The TFT is connected to the photoelectric conversion element. The gate drive circuit supplies a gate signal to a gate electrode of the TFT. The control circuit supplies a control signal to the gate drive circuit. The filter section attenuates a component of the gate signal or the control signal that has a frequency lower than a prescribed frequency.Type: GrantFiled: March 23, 2023Date of Patent: April 29, 2025Assignee: Sharp Display Technology CorporationInventor: Kohzoh Takahashi
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Patent number: 12287548Abstract: A display device includes: a plurality of first colored particles contained in a space between a first substrate and a second substrate; a light-emitting portion having a first light-emitting element provided on the first substrate, and a first-light-emitting-element driving circuit provided on the first substrate and configured to drive the first light-emitting element; a first transparent portion disposed in a direction along a main surface of the first substrate with respect to the light-emitting portion; a first electrode provided in the light-emitting portion; and a second electrode provided in the first transparent portion and being nckudestransparent. The display device is capable of switching between a light-transmitting state of the first transparent portion in which the first electrode attracts the plurality of first colored particles, and a light-blocking state of the first transparent portion in which the second electrode attracts the plurality of first colored particles.Type: GrantFiled: November 16, 2021Date of Patent: April 29, 2025Assignee: Sharp Display Technology CorporationInventors: Kimiaki Nakamura, Masakazu Shibasaki, Yasuhiro Haseba, Koji Murata