Japan Display Inc.

Hitachi Displays, Ltd.

Panasonic Liquid Crystal Display Co., Ltd.

Hitachi Device Engineering Co., Ltd.

Hitachi, Ltd.

Magnolia White Corporation

Yoshinori Aoki

Masanobu Ikeda

Hiroyuki Abe

Kazune Matsumura

Akihiro Ogawa

Yasuhiro Kanaya

Masateru Morimoto

Keita Sasanuma

Yuji Maede

Jin Hirosawa

Mitsuru Goto

Yuzo Kanari

Motoharu Miyamoto

Shuuichirou Matsumoto

Shouji Nagao

Kouichi Kotera

Masato Sawahata

Hideo Sato

Gen Koide

Takahiro Ochiai

Osamu Itou

Norio Mamba

Hiroshi Watanabe

Nobuyuki Ishige

Tomonori Nishino

Syou Yanagisawa

Takuya Eriguchi

Yuichi Numata

Masanari Saitou

Kengo Okazaki

Kenichi Akiyama

Youichi Ooki

Yuuichi Numata

A display device includes a display area including a plurality of pixels, and a gradation control circuit configured to control a gradation of the pixel based on a gradation control mode. Each of the plurality of pixels includes first and second LED chips. One frame period of the gradation control mode includes a first to third subframe periods. In the first subframe period, the gradation of the pixel is controlled by a light emitting area of each of the first and second LED chips. In the second subframe period, the gradation of the pixel is controlled by a light emission time of each of the first and second LED chips. In the third subframe period, the gradation of the pixel is controlled by a current value supplied to each of the first and second LED chips.

Display device

According to an aspect, a display device includes: a substrate; a plurality of pixels provided to the substrate; a light-emitting element and a transistor provided to each of the pixels; an insulating film covering the transistor; a mounting electrode provided on the insulating film and on which the light-emitting element is mounted; and an anode electrode facing at least a part of the mounting electrode and electrically coupled to the transistor. The insulating film has a first groove extending along at least one side of an outer periphery of the mounting electrode in plan view seen from a direction perpendicular to the substrate. The mounting electrode is coupled to the anode electrode in a linear part along an extending direction of the first groove at a bottom surface of the first groove.

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.

Display device with sensor

According to one embodiment, a display device includes pixels each including transistors, pixel electrodes, a contact electrode, and light emitting elements, and an insulating basement, a first organic insulating layer, a second organic insulating layer, a resin layer, a common electrode, and first wiring lines. The common electrode is electrically connected to cathodes of the light emitting elements, and electrically connected to the contact electrodes of the pixels. The first wiring lines, each provided between the first organic insulating layer and the second organic insulating layer or between the second organic insulating layer and the resin layer, are electrically connected to the contact electrodes of the pixels, and are formed of a metal.

A display device includes a substrate, a first light-emitting diode (LED) element and a second LED element provided to the substrate and configured to output light, a first signal line provided between the first LED element and the second LED element and electrically coupled to the first LED element, a second signal line provided between the first LED element and the second LED element and electrically coupled to the second LED element, gate wiring intersecting the first signal line and the second signal line, and anode wiring overlapping the gate wiring and electrically coupled to the first LED element and the second LED element. The anode wiring extends parallel to the gate wiring.

Display device with stacked wiring and display device with translucent region

A display device includes a display region in which a plurality of pixel portions is arranged in a matrix on a substrate, each of the plurality of pixel portions including an LED chip, a transistor, and a capacitor. Through the transistor, a first electrode of the LED chip is connected to a first wiring to which one of power supply voltages is supplied. A second electrode of the LED chip is connected to a second wiring to which another of the power supply voltages is supplied. A first electrode of the capacitor is connected to the first electrode of the LED chip. The plurality of pixel portions includes at least one first pixel portion which is located on an outermost periphery of the display region and at least one second pixel portion which is not located on the outermost periphery of the display region.

Display device with guard ring

A display device includes a display portion mounted with a first LED and a second LED are mounted, a pixel circuit portion provided with a first pixel-circuit thin film transistor electrically connected to the first LED and a second pixel-circuit thin film transistor electrically connected to the second LED, a drive circuit portion provided with a drive-circuit thin film transistor, and a shielding layer provided between the display portion and the drive circuit portion. A fixed potential is applied to the shielding layer. The second LED overlaps the drive circuit portion with the shielding layer therebetween.

An LED module includes a first electrode and a second electrode disposed on the substrate, an LED chip disposed on the first electrode and the second electrode, and a first bump between the LED chip and the first electrode, and a second bump between the LED chip and the second electrode. The LED chip includes a cathode electrode facing the first electrode, an anode electrode facing the second electrode, and a step portion between the cathode electrode and the anode electrode, a distance between the first electrode and the cathode electrode is larger than a distance between the second electrode and the anode electrode, and the first bump is disposed to embed the step portion.

LED module, method for manufacturing LED module, and circuit board

A display device includes a substrate, a plurality of first pixels and a plurality of second pixels provided to the substrate, a plurality of inorganic light emitting elements provided to the respective first pixels and the respective second pixels, a plurality of signal lines configured to supply a signal to the first pixels and the second pixels, and a plurality of power supply lines configured to supply a power supply potential to the first pixels and the second pixels. At least one or more of the signal lines are provided in a layer different from a layer of the power supply lines in the first pixels, and the signal lines and the power supply lines are provided in the same layer in the second pixels.

A display device includes a substrate, a plurality of pixels provided to the substrate, a light emitting element and a plurality of transistors provided to each of the pixels, signal lines configured to supply a signal to the pixels, a first semiconductor layer and a second semiconductor layer provided in different layers in a direction perpendicular to the substrate and overlap at least partially in planar view, first gate electrodes each of which is provided in a region overlapping a part of the first semiconductor layer, a first insulating film provided between the first gate electrodes and the first semiconductor layer, and a second insulating film provided between the first semiconductor layer and the second semiconductor layer.

Display device and array substrate

According to an aspect, a display device with a sensor includes: a first substrate; detection electrodes arrayed in a matrix in a first direction and a second direction intersecting the first direction above the first substrate; sensor wires coupled to one of the detection electrodes; pixels each including sub-pixels and arrayed in a matrix in the first and second directions; scanning lines scanning switching elements of the sub-pixels and extending in the first direction; and signal lines coupled to the switching elements and extending in the second direction. One of the sensor wires overlaps one of the signal lines. The sensor wires each have, at a part thereof, a coupling part coupled to the corresponding detection electrode. The pixels include a first pixel with the coupling part and a second pixel without the coupling part. The first and second pixels are alternately disposed in the first and second directions.

A display device includes a substrate, a plurality of pixels provided to the substrate, a light emitting element and a plurality of transistors provided to each of the pixels, a plurality of signal lines configured to supply a signal to the pixels, a power supply line configured to supply a drive potential to the pixels, a first metal layer, a second metal layer, and a third metal layer provided in different layers in a direction perpendicular to the substrate, a first insulating film provided between the first metal layer and the second metal layer, and a second insulating film provided between the second metal layer and the third metal layer.

According to one embodiment, a display device includes a display panel including a display area for displaying an image, and the display panel includes an insulating substrate, a first electrode, a first organic insulating layer, an inorganic insulating layer, a pixel electrode, a second organic insulating layer, and a pad portion. The inorganic insulating layer includes a first opening for electrically connecting the first electrode to the pixel electrode. The second organic insulating layer includes a second opening for electrically connecting the pixel electrode to the pad portion. The pixel electrode is formed of a transparent conductive material.

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Tokyo, Japan

Yoshinori Aoki