公开(公告)号：US11069878B2

公开(公告)日：2021-07-20

申请号：US16571909

申请日：2019-09-16

Applicant: JOLED INC.

Inventor： Takatoshi Saito ,  Kenichi Izumi ,  Shinichi Teraguchi ,  Tadakatsu Nakadaira ,  Mikihiro Yokozeki ,  Shota Nishi ,  Manabu Kodate

IPC: H01L51/52 ,  H01L27/32

Abstract: 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.

公开(公告)号：US11069293B2

公开(公告)日：2021-07-20

申请号：US16048828

申请日：2018-07-30

Applicant: JOLED Inc.

Inventor： Hiroaki Ishii ,  Teppei Isobe

IPC: G09G3/3258 ,  G09G3/3233

Abstract: A luminance controlling unit includes a luminance controller that controls luminance of a pixel array including pixels each including a current-driven self-luminescent element. The luminance controller performs, on the basis of an image signal, a dynamic control of a duty ratio of a voltage pulse and a potential difference between a first voltage and a second voltage. The first voltage is outputted from a first voltage source adjacent to an anode of the corresponding self-luminescent element, and the second voltage is outputted from a second voltage source adjacent to a cathode of the corresponding self-luminescent element. The duty ratio is directed to controlling of light emission and light extinction of the self-luminescent element.

公开(公告)号：US11069267B2

公开(公告)日：2021-07-20

申请号：US16456515

申请日：2019-06-28

Applicant: JOLED INC.

Inventor： Yutaka Nakano

IPC: G09G3/00 ,  H05K1/02 ,  G09G3/32 ,  H01R12/79

Abstract: A display device includes: a display panel; a main wiring board; a first wiring board that includes a first feedback line; and a first cable that is removably coupled to the main wiring board and the first wiring board. The main wiring board includes: a first output line; a first input line; a first circuit (a power supply circuit) that outputs a first voltage to the first output line; and a control circuit that is connected with the first input line. The first cable includes: a first forward conductor that directly or indirectly connects the first output line and the first feedback line; and a first return conductor that directly or indirectly connects the first input line and the first feedback line. The control circuit determines whether the first voltage is input, and when an input of the first voltage is determined, starts a display on the display panel.

公开(公告)号：US11063109B2

公开(公告)日：2021-07-13

申请号：US16830289

申请日：2020-03-26

Applicant: JOLED INC.

Inventor： Atsuhito Murai ,  Yasuhiro Terai ,  Takashi Maruyama ,  Yoshihiro Oshima ,  Motohiro Toyota ,  Ryosuke Ebihara ,  Yasunobu Hiromasu

IPC: H01L27/32 ,  H01L51/52 ,  H01L29/417 ,  H01L29/423 ,  H01L29/786 ,  H01L27/12

Abstract: A display unit includes a first substrate, a transistor, first and second wiring layers, and an insulating film. The first substrate is provided with a display region and a peripheral region. The transistor is provided in the display region, and includes a semiconductor layer, a gate electrode facing the semiconductor layer, a gate insulating film between the gate electrode and the semiconductor layer, and a source-drain electrode electrically coupled to the semiconductor layer. The first wiring layer is provided in the peripheral region, electrically coupled to the transistor, and disposed closer to the first substrate than the same layer as the gate electrode and the source-drain electrode. The second wiring layer is provided on the first substrate and has an electric potential different from the first wiring layer. The insulating film is provided between the second wiring layer and the first wiring layer.

公开(公告)号：US11038133B2

公开(公告)日：2021-06-15

申请号：US16387930

申请日：2019-04-18

Applicant: JOLED INC.

Inventor： Hideki Kobayashi ,  Jiro Yamada ,  Kenichi Nendai ,  Noriteru Maeda ,  Kenta Fukuoka

IPC: H01L51/50 ,  H01L51/52 ,  H01L51/56 ,  H01L27/32

Abstract: Disclosed is an organic EL display panel having pixels arranged in matrix includes a substrate, pixel electrodes disposed on the substrate for each of the pixels, insulating layers disposed so as to cover each upper part of the pixel electrodes and having not less than three slit-shaped openings extending and arranged in a column direction, partition walls extending in the column direction and partitioning the pixel electrodes in a row direction, organic functional layers disposed on the pixel electrodes and including organic luminous layers configured to cause electroluminescence in each of the openings, and light transmissive counter electrodes disposed on upper parts of the organic functional layers. Levels of top faces of the partition walls are higher than that of the insulating layers. Row-direction widths of openings adjacent to the partition walls in the row direction are larger than row-direction widths of openings not adjacent to the partition walls.

公开(公告)号：US20210175466A1

公开(公告)日：2021-06-10

申请号：US17111535

申请日：2020-12-04

Applicant: JOLED Inc.

Inventor： Akifumi OKIGAWA ,  Kenji HARADA

IPC: H01L51/52 ,  H01L27/32 ,  H01L51/56

Abstract: Self-luminous display panel having display region and peripheral region around the display region includes first substrate, insulating resin layer, self-luminous elements, sealing layer, attachment layer, and second substrate in this order. The insulating layer includes inner and outer sublayers with, therebetween, groove provided in the peripheral region and surrounding the display region. The sealing layer includes first-third sublayers respectively including inorganic material, resin, and inorganic material. In range including the display region and extending to at most inner end portion of the outer sublayer, the first-third sublayers are layered in this order. Outside the range, the first sublayer directly contacts the third sublayer. The attachment layer includes: peripheral layer inside peripheral portion of the second substrate; and joining layer in range surrounded by the peripheral layer. The peripheral layer is at least partially on the outer sublayer, and inner end portion of the peripheral layer is outside inner edge portion of the groove.

公开(公告)号：US11031570B2

公开(公告)日：2021-06-08

申请号：US16663389

申请日：2019-10-25

Applicant: JOLED Inc.

Inventor： Kosuke Mishima

IPC: H01L51/00 ,  H01L51/50 ,  H01L27/32 ,  H01L51/52 ,  H01L51/56

Abstract: An organic electroluminescence element includes an anode, an organic light emitting layer disposed on an upper side of the anode, a functional layer which is disposed over the organic light emitting layer, in which a rare earth metal and other material are present mixedly, and in which part of the rare earth metal is oxidized, and a cathode disposed on an upper side of the functional layer. A method of manufacturing an organic electroluminescence element includes forming an anode, forming an organic light emitting layer on an upper side of the anode, forming over the organic light emitting layer a functional layer in which a rare earth metal and other material are present mixedly and part of the rare earth metal is oxidized, and forming a cathode on an upper side of the functional layer.

公开(公告)号：US20210143361A1

公开(公告)日：2021-05-13

申请号：US17151215

申请日：2021-01-18

Applicant: JOLED Inc.

Inventor： Yuichi IWASE ,  Yasunori KIJIMA ,  Jiro YAMADA

IPC: H01L51/52 ,  H01L27/32 ,  H01L51/56 ,  H01L33/08 ,  H01L51/50

Abstract: 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.

公开(公告)号：US10998526B2

公开(公告)日：2021-05-04

申请号：US16122880

申请日：2018-09-06

Applicant: JOLED INC.

Inventor： Keiji Horikawa ,  Kenji Harada ,  Akifumi Okigawa

IPC: H01L51/52 ,  H01L51/56 ,  H01L51/50 ,  H01L51/00 ,  H01L27/32

Abstract: An organic electroluminescence (EL) display panel includes a substrate; a plurality of organic EL elements; and a sealing layer in this order. In the organic EL display panel, the sealing layer has a three-layered structure in the order of a first sealing layer, a second sealing layer, and a third sealing layer. In the organic EL display panel, the first sealing layer, the second sealing layer, and the third sealing layer each include amorphous silicon nitride. In the organic EL display panel, when composition of the first sealing layer, composition of the second sealing layer, and composition of the third sealing layer are each indicated as SiNx, a value of x in the composition of the second sealing layer is greater than both a value of x in the composition of the first sealing layer and a value of x in the composition of the third sealing layer.

公开(公告)号：US10997915B2

公开(公告)日：2021-05-04

申请号：US16717277

申请日：2019-12-17

Applicant: JOLED INC.

Inventor： Masanori Ohara

IPC: G09G3/3233 ,  G09G3/3283 ,  G09G3/20

Abstract: A pixel circuit includes: one data signal line; one holding capacitor which holds a data signal transmitted through the one data signal line; one drive transistor which outputs a current in accordance with the data signal held at the one holding capacitor; three color selection lines; three color selection transistors having control terminals respectively connected to the three color selection lines that are mutually different; and three light emitting elements being connected to an output end of the current of the one drive transistor via the three color selection transistors, respectively, that are mutually different, and emitting luminescent colors that are mutually different.