Japan Display Inc. patent applications on August 1st, 2024

Patent Applications by Japan Display Inc. on August 1st, 2024

Japan Display Inc.: 25 patent applications

Japan Display Inc. has applied for patents in the areas of G09G3/36 (5), G09G3/3225 (4), G06F3/044 (4), G06F3/041 (4), G09G3/3266 (3) G06F3/0412 (2), H10K59/122 (2), G01L1/2206 (1), G09G3/3655 (1), H10K59/40 (1)

With keywords such as: electrode, layer, display, potential, substrate, light, line, signal, device, and portion in patent application abstracts.

Patent Applications by Japan Display Inc.

20240255366. STRETCHABLE DEVICE_simplified_abstract_(japan display inc.)

Inventor(s): Masatomo HISHINUMA of Tokyo (JP) for japan display inc., Takumi SANO of Tokyo (JP) for japan display inc.

IPC Code(s): G01L1/22

CPC Code(s): G01L1/2206

Abstract: a stretchable device includes strain gauges and electrical wiring. each strain gauge includes a first strain gauge and a second strain gauge. the first strain gauge and the second strain gauge are coupled to each other. the electrical wiring includes a first potential line, a second potential line, a coupling line coupling the first potential line to the second potential line, a first signal line, and a second signal line. the first signal line detects a third potential at a first coupling point. the second signal line detects a fourth potential at a midpoint of the coupling line. one of the first strain gauge and the second strain gauge is an inner peripheral strain gauge. the other thereof is an outer peripheral strain gauge. the amount of change in resistance of each strain gauge is detected based on a potential difference between the third potential and the fourth potential.

20240255688. ILLUMINATION DEVICE AND DISPLAY DEVICE_simplified_abstract_(japan display inc.)

Inventor(s): Yasuhiro TAKAHASHI of Tokyo (JP) for japan display inc., Shinichi KOMURA of Tokyo (JP) for japan display inc.

IPC Code(s): F21V8/00

CPC Code(s): G02B6/0036

Abstract: according to one embodiment, an illumination includes a first light guide including a first main surface, a second main surface, and a first side surface, a first light source applying a first linearly polarized light toward the first side surface, and a first retardation film provided on the first side surface and providing a phase difference to light emitted from the first light source. the first side surface is an inclined surface including a first end portion and a second end portion, and a distance between the second end portion and the first light source is smaller than a distance between the first end portion and the first light source.

20240255691. ILLUMINATION DEVICE_simplified_abstract_(japan display inc.)

Inventor(s): Makoto HASEGAWA of Tokyo (JP) for japan display inc., Nobuyuki SUZUKI of Tokyo (JP) for japan display inc., Masafumi OKADA of Tokyo (JP) for japan display inc.

IPC Code(s): F21V8/00

CPC Code(s): G02B6/0076

Abstract: according to one embodiment, in an illumination device, a second light guide includes a plurality of fourth projecting portions provided in a first area of a fifth main surface opposing a prism sheet, a plurality of fifth projecting portions provided in a second area of a fifth main surface, and a plurality of sixth projecting portions on a sixth main surface opposing the fifth main surface, cross-sectional shapes of the fourth projecting portions and the fifth projecting portions are scalene triangles, and the fourth projecting portions and the fifth projecting portions are arranged in respective positions line-symmetrical position with respect to each other in plan view.

20240255799. BACKLIGHT AND DISPLAY APPARATUS_simplified_abstract_(japan display inc.)

Inventor(s): Toshihiro YAJIMA of Tokyo (JP) for japan display inc., Takashi OTA of Tokyo (JP) for japan display inc., Michihide SHIBATA of Tokyo (JP) for japan display inc.

IPC Code(s): G02F1/13357, H01L25/075, H01L33/50

CPC Code(s): G02F1/133603

Abstract: the present invention has been made to reduce a yellow shift around blue leds in a backlight including the blue leds and a color conversion sheet. provided is a backlight including a light source including blue leds arranged in a matrix, on a plane, at first intervals, and a color conversion sheet arranged to cover the light source, in which red quantum dots that emit red light in response to blue light and green quantum dots that emit green light in response to blue light are dispersed in the color conversion sheet, short-wavelength leds that emit light of a shorter wavelength than that of blue light are arranged near the blue leds, and blue quantum dots that emit blue light in response to the short-wavelength light are arranged in the color conversion sheet, at positions overlapping the short-wavelength leds in plan view.

20240255801. BACKLIGHT AND LIQUID CRYSTAL DISPLAY DEVICE_simplified_abstract_(japan display inc.)

Inventor(s): Koji FUJISAWA of Tokyo (JP) for japan display inc., Michihide SHIBATA of Tokyo (JP) for japan display inc., Masafumi OKADA of Tokyo (JP) for japan display inc.

IPC Code(s): G02F1/1335, G02F1/13357

CPC Code(s): G02F1/133607

Abstract: in a backlight that includes a plurality of leds and a prism sheet disposed opposite to the leds, the prism sheet has a first surface opposite to the leds and a second surface on the opposite side of the first surface, a first prism having a first base and a first pitch l is formed on the first surface, a second prism having a cross section that is scalene triangular in shape having a second base having a length l, a first base angle �, and a second base angle � smaller than the first base angle is formed on the second surface, and l<l

20240255803. DISPLAY DEVICE_simplified_abstract_(japan display inc.)

Inventor(s): Makoto MIYAO of Tokyo (JP) for japan display inc.

IPC Code(s): G02F1/13357, G02F1/1333, G02F1/1334

CPC Code(s): G02F1/133615

Abstract: according to an aspect, a display device includes: a display panel that comprises a first light-transmitting substrate, a second light-transmitting substrate facing the first light-transmitting substrate, and a liquid crystal layer between the first light-transmitting substrate and the second light-transmitting substrate, and has an active region capable of displaying an image as viewed in a direction orthogonal to the first light-transmitting substrate and a peripheral region outside the active region; a light-transmitting first base member bonded to the display panel; and a light source disposed so that light enters at least one of a side surface of the first light-transmitting substrate, a side surface of the second light-transmitting substrate, and a side surface of the first base member. the first base member is sized so as to overlap the active region and not to overlap the peripheral region.

20240255805. DISPLAY DEVICE_simplified_abstract_(japan display inc.)

Inventor(s): Shinichi KOMURA of Tokyo (JP) for japan display inc., Yasuhiro TAKAHASHI of Tokyo (JP) for japan display inc., Jin HIROSAWA of Tokyo (JP) for japan display inc.

IPC Code(s): G02F1/13363, G02F1/1335

CPC Code(s): G02F1/133638

Abstract: according to one embodiment, a display device includes a display module configured to emit display light which is linearly polarized light, a first structure including a first retardation film facing the display module, a holographic optical element facing the first retardation film, and a second retardation film facing the holographic optical element, a second structure including a reflective polarizer facing the second retardation film, and a transparent substrate facing the reflective polarizer, and a variable mechanism by which an interval between the first structure and the second structure is made variable.

20240255806. LIQUID CRYSTAL PANEL_simplified_abstract_(japan display inc.)

Inventor(s): Yoshihiro SAKURAI of Kanagawa (JP) for japan display inc., Hironao TANAKA of Kanagawa (JP) for japan display inc., Harumi OKUNO of Kanagawa (JP) for japan display inc., Takeo KOITO of Kanagawa (JP) for japan display inc.

IPC Code(s): G02F1/1337, G02F1/1343

CPC Code(s): G02F1/1337

Abstract: a liquid crystal panel is provided and includes first and second substrates with liquid crystal layer therebetween; and first electrode in display region; second electrode disposed between first electrode and first substrate; and alignment film having alignment direction, wherein first electrode has: pair of electrode branches; slit between pair of electrode branches; first and second connections connecting pair of electrode branches; wherein first electrode has areas including first and second bent portions, main portion disposed between first and second bent portions, wherein first bent portion is adjacent to contact hole of first electrode, wherein first and second bent portions are bent relative to main portion, and wherein direction of first bent portion is substantially parallel to direction of second bent portion.

20240255812. ELECTRO-OPTICAL DEVICE, ELECTRO-OPTICAL UNIT, AND DISPLAY DEVICE_simplified_abstract_(japan display inc.)

Inventor(s): Hirofumi OHIRA of Tokyo (JP) for japan display inc., Koji YOSHIDA of Tokyo (JP) for japan display inc.

IPC Code(s): G02F1/1343, G02F1/1333

CPC Code(s): G02F1/134309

Abstract: according to an aspect, an electro-optical device includes: a first substrate; a first electrode disposed on the first substrate; a second substrate disposed facing the first substrate; a second electrode disposed on the second substrate and facing the first electrode; and a liquid crystal layer provided between the first electrode and the second electrode. the second electrode includes a plurality of divided electrodes arranged in a first direction. two divided electrodes adjacent to each other among the divided electrodes are disposed with a slit interposed between the two divided electrodes.

20240255996. STRETCHABLE DEVICE_simplified_abstract_(japan display inc.)

Inventor(s): Masatomo HISHINUMA of Tokyo (JP) for japan display inc., Takumi SANO of Tokyo (JP) for japan display inc.

IPC Code(s): G06F1/16, G01L1/22

CPC Code(s): G06F1/1652

Abstract: a stretchable device includes a resin base member, strain gauges, and electrical wiring. the strain gauges include a longitudinal strain gauge and a lateral strain gauge. the electrical wiring includes an electrical wiring line for longitudinal strain and an electrical wiring line for lateral strain. the electrical wiring line for longitudinal strain and the electrical wiring line for lateral strain each include a first potential line, a second potential line, a coupling line, a first signal line, and a second signal line. the first signal line detects a third potential at a first coupling point where the second end of the corresponding strain gauge is coupled to the second potential line. the second signal line detects a fourth potential at a midpoint of the coupling line. the amount of change in resistance of each strain gauge is detected based on a difference between the third potential and the fourth potential.

20240256067. DISPLAY DEVICE WITH SENSOR_simplified_abstract_(japan display inc.)

Inventor(s): Hiroyuki ABE of Tokyo (JP) for japan display inc., Yoshinori AOKI of Tokyo (JP) for japan display inc., Kazune MATSUMURA of Tokyo (JP) for japan display inc., Masateru MORIMOTO of Tokyo (JP) for japan display inc.

IPC Code(s): G06F3/041, G02F1/1333, G02F1/1343, G06F3/044, G09G3/36

CPC Code(s): G06F3/0412

Abstract: according to an aspect, a display device with a sensor includes: a substrate including a display region and a peripheral region on a periphery of the display region; detection electrodes arranged in a row-column configuration in the display region; and detection lines coupled to the respective detection electrodes. a shape of the substrate in a plan view includes a curve of a curved portion. the detection electrodes include a first electrode and a second electrode having a shape different from that of the first electrode in a plan view. the second electrode is juxtaposed with the curved portion. the detection lines each include a first line coupled to the first electrode and a second line coupled to the second electrode. the second line passes from the display region across the peripheral region and extends to a position overlapping with the second electrode in a plan view.

20240256070. DISPLAY DEVICE_simplified_abstract_(japan display inc.)

Inventor(s): Koji Noguchi of Kanagawa (JP) for japan display inc., Yoshitoshi Kida of Kanagawa (JP) for japan display inc., Kohei Azumi of Tokyo (JP) for japan display inc.

IPC Code(s): G06F3/041, G06F3/044, G06F3/047, G09G3/36, G09G5/00, G09G5/18

CPC Code(s): G06F3/0412

Abstract: a display device is provided and includes signal line; pixel electrode; drive electrode opposed to pixel electrode; scanning lines; and display periods and a detection period in frame, wherein during one of display periods, common voltage is applied to drive electrode, scanning signal is applied to some scanning lines, pixel signal is applied to pixel electrode, wherein, during detection period, ac drive or pulse signal is applied to drive electrode, ac drive or pulse signal having pulses, wherein pulses during the detection period is less than number of some of scanning signal lines.

20240256093. DETECTING DEVICE_simplified_abstract_(japan display inc.)

Inventor(s): Hiroshi YAMAGUCHI of Tokyo (JP) for japan display inc.

IPC Code(s): G06F3/044, G06F3/041

CPC Code(s): G06F3/0446

Abstract: a detecting device includes a plurality of sensor electrodes provided to a detection region, a power supply circuit configured to generate a second reference potential that fluctuates periodically based on a first power supply potential that is substantially constant with respect to a first reference potential serving as a fixed potential and generate a second power supply potential that is substantially constant with respect to the second reference potential, and an afe circuit configured to supply a drive signal to the sensor electrodes, acquire a detection signal generated in the sensor electrodes, and output a square wave signal in synchronization with the drive signal.

20240257551. DETECTION DEVICE AND DISPLAY DEVICE_simplified_abstract_(japan display inc.)

Inventor(s): Tadayoshi KATSUTA of Tokyo (JP) for japan display inc.

IPC Code(s): G06V40/13, G06V40/145, G09G3/3225, G09G3/3266, H01L27/146

CPC Code(s): G06V40/1318

Abstract: a detection device includes a plurality of detection elements arranged in a matrix having a row-column configuration in a detection area, a plurality of scan lines each coupled to the detection elements arranged in a first direction, a drive circuit configured to drive the scan lines, a plurality of output signal lines each coupled to the detection elements arranged in a second direction different from the first direction, and a detection circuit configured to be supplied with detection signals from the detection elements through the output signal lines.

20240257780. DISPLAY DEVICE_simplified_abstract_(japan display inc.)

Inventor(s): Hirotaka HAYASHI of Tokyo (JP) for japan display inc.

IPC Code(s): G09G3/36, G09G3/20

CPC Code(s): G09G3/3655

Abstract: according to an aspect, a display device includes scan lines, signal lines, a scan circuit, a signal output circuit, pixels each having a switching element and a pixel electrode, a common electrode, and a common electrode drive circuit. in a potential reset period to reset a potential of the pixel electrode and a common potential inversion period subsequent to the potential reset period, the scan circuit supplies, to the scan lines, a drive potential to drive the switching elements, and the signal output circuit supplies, to the signal lines, an intermediate potential between a potential corresponding to a maximum gradation value and a potential corresponding to a minimum gradation value. in the common potential inversion period, the common electrode drive circuit switches the common potential between a first common potential and a second common potential higher than the first common potential.

20240257783. ELECTRO-OPTICAL DEVICE_simplified_abstract_(japan display inc.)

Inventor(s): Katsuya ANZAI of Anpachi-cho (JP) for japan display inc., Hideki KAWADA of Anpachi-cho (JP) for japan display inc., Hiroshi MATSUDA of Gifu-shi (JP) for japan display inc., Yukitada IWASAKI of Mizuho-shi (JP) for japan display inc.

IPC Code(s): G09G3/36, G09G3/20, G09G3/3225, G09G3/3266, G09G3/3275, H10K59/131

CPC Code(s): G09G3/3677

Abstract: an electro-optical device is provided and includes a plurality of first signal lines extending in a first direction on a substrate; a plurality of second signal lines extending in a second direction on the substrate, the second direction intersecting the first direction; a pixel area in which a plurality of pixel electrodes are disposed; an outer peripheral edge of the pixel area having a curved portion or a bent portion; and a first circuit block, a second circuit block, and a third circuit block arranged along the outer peripheral edge, wherein the second circuit block is arranged between the first circuit block and the first circuit block, and a first gap between the first circuit bock and the second circuit block is different from a second gap between the second circuit block and the third circuit block.

20240258295. DISPLAY DEVICE AND ARRAY SUBSTRATE_simplified_abstract_(japan display inc.)

Inventor(s): Masanobu IKEDA of Tokyo (JP) for japan display inc., Yasuhiro KANAYA of Tokyo (JP) for japan display inc.

IPC Code(s): H01L25/16, G09G3/32, H01L33/62

CPC Code(s): H01L25/167

Abstract: a display device includes a substrate, a plurality of pixels arrayed on the substrate, an inorganic light-emitting element provided to each of the pixels, an anode electrode electrically coupled to the inorganic light-emitting element, a transistor provided on a first surface of the substrate, and coupling wiring that couples the anode electrode and the transistor. the anode electrode protrudes from an inside to an outside of the inorganic light-emitting element in planar view from a normal direction of the substrate.

20240258331. SEMICONDUCTOR DEVICE_simplified_abstract_(japan display inc.)

Inventor(s): Tatsuya TODA of Tokyo (JP) for japan display inc., Toshinari SASAKI of Tokyo (JP) for japan display inc., Masayoshi FUCHI of Tokyo (JP) for japan display inc.

IPC Code(s): H01L27/12, G02F1/1362, G02F1/1368, G09G3/3225, G09G3/3266, H10K59/12, H10K59/123, H10K59/124, H10K59/131

CPC Code(s): H01L27/124

Abstract: a semiconductor device including: a first gate electrode; a first gate insulating layer on the first gate electrode; a first oxide semiconductor layer on the first insulating layer; source and drain electrodes connected to the first oxide semiconductor layer; a second gate insulating layer on the first oxide semiconductor layer; a second oxide semiconductor layer on the second gate insulating layer; a second gate electrode on the second oxide semiconductor layer, the second gate electrode being in contact with the second oxide semiconductor layer; a first insulating layer on the second gate electrode, the first insulating layer having a part of a first aperture overlapping with the second oxide semiconductor layer in a planar view; and a first connecting electrode electrically connecting the first gate electrode and the second gate electrode via the first aperture.

20240258416. TRANSISTOR_simplified_abstract_(japan display inc.)

Inventor(s): Hiroumi KINJO of Tokyo (JP) for japan display inc., Masumi NISHIMURA of Tokyo (JP) for japan display inc., Hayata AOKI of Tokyo (JP) for japan display inc.

IPC Code(s): H01L29/778, H01L29/20

CPC Code(s): H01L29/7786

Abstract: a transistor according to an embodiment of the present invention includes an amorphous substrate, a conductive alignment layer over the amorphous substrate, a heterojunction structure including a semiconductor layer and a polarization layer in contact with the semiconductor layer over the conductive alignment layer, and a gate electrode over the heterojunction structure. the heterojunction structure comprises a recessed portion in a region overlapping the gate electrode. the recessed portion may be provided in the polarization layer or the semiconductor layer.

20240259704. DISPLAY SYSTEM_simplified_abstract_(japan display inc.)

Inventor(s): Kazuhiko SAKO of Tokyo (JP) for japan display inc.

IPC Code(s): H04N25/531, G09G3/36, H04N7/18

CPC Code(s): H04N25/531

Abstract: according to one embodiment, a display system includes a display device, a rolling shutter camera, a shutter and a control device. the display device includes a display area and a light emitting element. the rolling shutter camera is arranged behind the display device. the shutter is arranged between the display device and the camera. the control device controls the operation of the shutter to block light traveling toward the camera during a first sub-frame period during which the light emitting element is turned on and an image is displayed on the display area, and to transmit light traveling toward the camera during a second sub-frame period during which the light emitting elements is not turned on and the display area is made transparent.

20240260307. DISPLAY DEVICE_simplified_abstract_(japan display inc.)

Inventor(s): Hayata AOKI of Tokyo (JP) for japan display inc.

IPC Code(s): H10K50/858, H10K50/155, H10K50/17, H10K50/818, H10K102/00

CPC Code(s): H10K50/858

Abstract: a display device includes a substrate, and a plurality of light-emitting elements each composed of a pixel electrode, a lower buffer layer, a light-emitting layer, an upper buffer layer, and a counter electrode stacked in order on the substrate. the lower buffer layer comprises a first hole transport layer, a second hole transport layer, and a third hole transport layer stacked in order on the pixel electrode, and refractive index of the second hole transport layer is higher than refractive index of the first hole transport layer and refractive index of the third hole transport layer.

20240260324. MOTHER SUBSTRATE FOR DISPLAY DEVICE AND DISPLAY DEVICE_simplified_abstract_(japan display inc.)

Inventor(s): Kaichi FUKUDA of Tokyo (JP) for japan display inc.

IPC Code(s): H10K59/122, G09G3/3225

CPC Code(s): H10K59/122

Abstract: according to one embodiment, a mother substrate for a display device includes a plurality of panel portions each of which includes a display area in which a plurality of display elements are provided, a margin area around the panel portions, and a first partition provided in the margin area. each of the display elements includes a lower electrode, an upper electrode which faces the lower electrode, and an organic layer which is provided between the lower electrode and the upper electrode. the first partition includes a first lower portion and a first upper portion including an end portion which protrudes from a side surface of the first lower portion.

20240260331. DISPLAY DEVICE_simplified_abstract_(japan display inc.)

Inventor(s): Hiroshi TABATAKE of Tokyo (JP) for japan display inc.

IPC Code(s): H10K59/122, H10K50/813

CPC Code(s): H10K59/122

Abstract: according to one embodiment, a display device includes a substrate, an insulating layer, a lower electrode, a rib including an aperture and covering a periphery of the lower electrode, a partition above the rib, an upper electrode being in contact with the partition, and an organic layer between the electrodes. the organic layer includes a first organic layer that is in contact with the lower electrode through the aperture, and a second organic layer on the partition. at least a part of the periphery of the lower electrode is located between the insulating layer and the partition in a thickness direction of the insulating layer.

20240260383. SEMICONDUCTOR DEVICE INCLUDING DETECTION ELECTRODES APPLICABLE FOR A TOUCH SENSOR_simplified_abstract_(japan display inc.)

Inventor(s): Mitsuhide MIYAMOTO of Tokyo (JP) for japan display inc., Hajime AKIMOTO of Tokyo (JP) for japan display inc.

IPC Code(s): H10K59/40, G06F3/041, G06F3/044, H10K50/11, H10K50/17, H10K50/842, H10K50/844, H10K59/122, H10K59/35, H10K77/10

CPC Code(s): H10K59/40

Abstract: a sealing member containing conductive particles and disposed in a seal region is formed between a display panel and a touch panel. a laminated structure formed on the display panel includes a first detection lines. the first detection lines extend from the seal region to a connection region and are connected through the conductive particles to terminals of second detection lines formed on the touch panel. a peripheral edge of the organic barrier is located inward from the conductive particles of the sealing member. the above described structure can facilitate a work for connecting external lines such as fpc to the display panel and the touch panel. further, the structure can secure stability of electrical connection between the external lines and the touch panel.

20240260388. MOTHER SUBSTRATE FOR DISPLAY DEVICE, DISPLAY DEVICE AND MANUFACTURING METHOD OF DISPLAY DEVICE_simplified_abstract_(japan display inc.)

Inventor(s): Kaichi FUKUDA of Tokyo (JP) for japan display inc.

IPC Code(s): H10K59/80, H10K71/00, H10K71/20, H10K71/60

CPC Code(s): H10K59/80515

Abstract: according to one embodiment, a mother substrate for a display device includes a plurality of panel portions each of which includes a display area in which display elements are provided, a margin area around the panel portions, and a first partition in the margin area. each of the display elements includes a lower electrode, an upper electrode and an organic layer. further, the first partition includes a first lower portion formed of an organic insulating material, and a first upper portion including an end portion which protrudes from a side surface of the lower portion.

Japan Display Inc. patent applications on August 1st, 2024