公开(公告)号：US20200258451A1

公开(公告)日：2020-08-13

申请号：US16861676

申请日：2020-04-29

Applicant: JOLED INC.

Inventor： Hiroshi TAKAHARA ,  Hitoshi TSUGE

IPC: G09G3/3241 ,  H01L27/12 ,  H01L27/32 ,  G09G3/3275 ,  G09G3/20 ,  G09G3/3258 ,  G09G3/3233 ,  H01L51/52 ,  G09G3/32 ,  G09G3/3266 ,  G09G3/325

Abstract: An EL display apparatus is provided. A display screen includes pixels arranged in a matrix, with each pixel including an EL device and a pixel circuit. A source driver circuit is configured to output an analog video signal to each pixel. A gate driver circuit is on at least one side of the display screen, with the gate driver circuit including first and second gate driver circuits. Each pixel includes a driving transistor, a first switch transistor, and a second switch transistor. A gate terminal of the first switch transistor is connected to a first gate signal line of the first gate driver circuit, and a gate terminal of the second switch transistor is connected to a second gate signal line of the second gate driver circuit. The first and second switch transistors are on/off controlled, independently, by the first and second gate driver circuits.

公开(公告)号：US20200251548A1

公开(公告)日：2020-08-06

申请号：US16751809

申请日：2020-01-24

Applicant: JOLED INC.

Inventor： Masanori OHARA

IPC: H01L27/32 ,  G09G3/3208

Abstract: A pixel circuit disposed in a pixel region including three subpixel regions includes: three light-emitting elements that are disposed in the subpixel regions and have mutually different luminescent colors; one drive circuit that is disposed in a subpixel region serving as a first subpixel region, and supplies drive current to the three light-emitting elements in time division; and a positive power supply line serving as a first power supply line that is disposed in a subpixel region serving as a second subpixel region, and supplies power supply voltage to the drive circuit.

公开(公告)号：US10727290B2

公开(公告)日：2020-07-28

申请号：US15888398

申请日：2018-02-05

Applicant: JOLED INC.

Inventor： Tetsuro Yamamoto

IPC: H01L27/32 ,  G09G3/3233 ,  G09G3/3241 ,  G09G3/20

Abstract: An active-matrix display device includes pixels arranged in a matrix, and each of the pixels includes subpixels that are arranged along an X direction and emit light of mutually different colors. Each of the subpixels includes a TFT element provided on a TFT substrate and an organic EL element provided on the TFT substrate. The organic EL element has an opening which is a region from which emitted light exits, and the TFT substrate includes a first layer and a second layer. When same-colored subpixels of two of the pixels adjacent in the X direction are seen in a plan view, the first layer has a portion arranged in line symmetry between the same-colored subpixels and the second layer is disposed at an identical position in the openings of the same-colored subpixels.

公开(公告)号：US10680197B2

公开(公告)日：2020-06-09

申请号：US16018077

申请日：2018-06-26

Applicant: JOLED INC.

Inventor： Masanori Miura ,  Atsuhito Murai

IPC: H01L27/32 ,  H01L51/52 ,  H01L51/50 ,  G09G3/3258 ,  G09G3/3266 ,  G09G3/3233 ,  H01L51/56

Abstract: A display device includes a display region, an organic insulating layer, a display element, and a moisture-ingress barrier. The organic insulating layer has a groove outside the display region. The organic insulating layer extends over the display region and a region outside the groove. The display element is disposed in the display region and includes, in order, a first electrode, an organic layer, and a second electrode. The organic layer includes one or more moisture-reacting layers. The moisture-ingress barrier is disposed in the groove of the organic insulating layer, includes a material identical to the material of the one or more moisture-reacting layers, and has a thickness greater than the thickness of the one or more moisture-reacting layers.

公开(公告)号：US10581019B2

公开(公告)日：2020-03-03

申请号：US15715800

申请日：2017-09-26

Applicant: JOLED INC.

Inventor： Hideyuki Shirahase ,  Hiroyuki Ajiki ,  Jun Hashimoto ,  Masaki Nishimura

IPC: H01L29/08 ,  H01L51/52 ,  H01L51/50 ,  H01L27/32 ,  H01L51/56

Abstract: An organic electroluminescence element includes an anode, a light-emitting layer disposed over the anode, a functional layer disposed on the light-emitting layer in contact with the light-emitting layer and including a first metal, a light-transmitting conductive layer disposed on the functional layer in contact with the functional layer and composed of a metallic oxide, and a cathode disposed on the light-transmitting conductive layer in contact with the light-transmitting conductive layer and composed of a metal. The functional layer has a film thickness of 15 to 35 nm. A surface of the anode on the light-emitting layer side and an interface between the cathode and the light-transmitting conductive layer are spaced from each other by not less than 150 nm.

公开(公告)号：US10553650B2

公开(公告)日：2020-02-04

申请号：US15885089

申请日：2018-01-31

Applicant: JOLED INC.

Inventor： Kosuke Mishima

IPC: H01L27/32 ,  H01L51/52 ,  G09G3/3208 ,  G09G3/3233

Abstract: An organic electroluminescent element includes an organic electroluminescent part and a pair of partition walls. The organic electroluminescent part includes an organic material layer, a resonator, and a film-thickness adjustment layer. The film-thickness adjustment layer has a thickness that is adjusted to allow a difference between a height of a pinning position and a height of a middle position of an upper surface of the organic material layer to fall within a predetermined range. The pinning position is a position at which the upper surface of the organic material layer and each of the partition walls are in contact with each other.

公开(公告)号：US20200035947A1

公开(公告)日：2020-01-30

申请号：US16521699

申请日：2019-07-25

Applicant: JOLED INC.

Inventor： Takashige FUJIMORI ,  Yuichiro ISHIYAMA

IPC: H01L51/52 ,  H01L51/00 ,  C23C16/513 ,  C23C16/34 ,  C23C16/40

Abstract: A light-emitting display device includes an element-formation substrate and a plurality of pixels. The element-formation substrate includes a first barrier film and a second barrier film provided on a substrate, the first barrier film and the second barrier film being provided in the stated order from the substrate and suppressing ingress of moisture. The plurality of pixels is provided on the element-formation substrate. The element-formation substrate further includes an organic part that fills a crack occurred in the first barrier film, or that is attached around a part of a metallic foreign substance protruding from the first barrier film.

公开(公告)号：US10535779B2

公开(公告)日：2020-01-14

申请号：US15872879

申请日：2018-01-16

Applicant: JOLED INC.

Inventor： Mitsutaka Matsumoto

IPC: H01L29/786 ,  H01L21/385 ,  H01L21/44 ,  H01L21/4757 ,  H01L29/26 ,  H01L29/49 ,  H01L29/66

Abstract: A thin film transistor includes a gate electrode. The thin film transistor further includes an oxide semiconductor layer which includes at least indium and is usable as a channel layer, wherein a region of the oxide semiconductor layer closest to the gate electrode includes fluorine. The thin film transistor further includes a gate insulating layer between the gate electrode and the oxide semiconductor layer. The thin film transistor further includes a fluorine-including layer which includes fluorine and is between the gate electrode and the gate insulating layer.

公开(公告)号：US10535717B2

公开(公告)日：2020-01-14

申请号：US16018882

申请日：2018-06-26

Applicant: JOLED INC.

Inventor： Takahiro Komatsu

IPC: H01L29/08 ,  H01L27/32 ,  H01L51/50 ,  H01L51/52

Abstract: A plurality of light emitters emitting different colors of light in a light-emitting device is provided on a surface of a substrate along two dimensions. Each light emitter includes a first electrode, a first charge injection/transport layer, a light-emitting layer, an intermediate layer, a second charge injection/transport layer, and a second electrode. The intermediate layer includes a fluoride of an alkali metal or an alkaline earth metal. Among the first electrode and the second electrode, one electrode is light reflective and another electrode is light transmissive. Among the first charge injection/transport layer and the second charge injection/transport layer, one charge injection/transport layer is disposed between the light-emitting layer and the light reflective electrode, and thickness of the one charge injection/transport layer included in the first light emitter is different from thickness of the one charge injection/transport layer included in the second light emitter.

公开(公告)号：US10516133B2

公开(公告)日：2019-12-24

申请号：US16392558

申请日：2019-04-23

Applicant: JOLED INC.

Inventor： Masaki Nishimura ,  Hiroyuki Ajiki ,  Shuhei Yada ,  Yasuharu Shinokawa

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

Abstract: An organic EL display panel includes a substrate, a plurality of pixel electrodes disposed in a matrix pattern over the substrate, a first current feeding auxiliary electrode layer disposed to extend in a column or row direction in at least one of gaps between adjacent ones of the pixel electrodes over the substrate, a second current feeding auxiliary electrode layer that contains aluminum as a main constituent and is disposed to be superposed on the first current feeding auxiliary electrode layer, a plurality of light emitting layers disposed on the plurality of pixel electrodes, and a common electrode layer disposed continuously to cover the first current feeding auxiliary electrode layer and the second current feeding auxiliary electrode layer as well as an upper side of the plurality of light emitting layers.