公开(公告)号：US11302760B2

公开(公告)日：2022-04-12

申请号：US16652595

申请日：2019-04-19

Applicant: BOE Technology Group Co., Ltd.

Inventor： Ling Wang ,  Yi-Cheng Lin ,  Guang Yan

IPC: H01L27/32

Abstract: The embodiment of the present disclosure discloses an array substrate, a fabrication method thereof, and a display device. The array substrate includes: a base substrate and a plurality of pixel units on the base substrate, wherein the pixel unit includes a plurality of sub-pixels; and the sub-pixel includes an electroluminescent component, a pixel circuit and a photo detection circuit; the pixel circuit includes a drive transistor for driving the electroluminescent component to emit light, and the drive transistor is a low temperature poly-si thin film transistor; and the photo detection circuit includes a detection switch transistor and a PIN-type photodiode, and the detection switch transistor is a metal oxide transistor.

公开(公告)号：US11087688B2

公开(公告)日：2021-08-10

申请号：US15779789

申请日：2017-12-15

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yi-Cheng Lin ,  Guang Yan ,  Quanhu Li ,  Mingi Chu

IPC: G09G3/3258

Abstract: Embodiments of the present disclosure provide a driving method for a pixel circuit. The pixel circuit includes a light emitting device and a drive transistor. The method includes: compensating the drive transistor in a first compensation manner including an internal voltage compensation during an operation period of the light emitting device; and compensating the drive transistor in a second compensation manner including the internal voltage compensation and an external voltage compensation during a non-operation period of the light emitting device.

公开(公告)号：US10964758B2

公开(公告)日：2021-03-30

申请号：US16613133

申请日：2019-04-08

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Guang Yan ,  Wenjun Hou ,  Juanjuan You ,  Donghui Yu ,  Chunjing Hu ,  Yongqi Shen ,  Dongfang Yang

IPC: H01L27/32 ,  H01L33/24 ,  H01L51/56 ,  H01L51/52 ,  H01L33/06

Abstract: A pixel unit, a display panel, a display device and a method of manufacturing a pixel unit. The pixel unit includes a first sub-pixel unit and a second sub-pixel unit, each sub-pixel unit includes a first electrode, an emission layer, and a second electrode stacked on a substrate. An emission lifespan of the emission layer of the first sub-pixel unit is smaller than that of the emission layer of the second sub-pixel unit. An area of an orthographic projection of the emission layer of the first sub-pixel unit on the substrate is equal to that of the emission layer of the second sub-pixel unit on the substrate. An area of an orthographic projection of the first electrode of the first sub-pixel unit on the substrate is greater than an area of an orthographic projection of the first electrode of the second sub-pixel unit on the substrate.

公开(公告)号：US10661305B2

公开(公告)日：2020-05-26

申请号：US15841152

申请日：2017-12-13

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Chinlung Liao ,  Guang Yan ,  Chang Yen Wu

IPC: B05D3/00 ,  B05D1/02 ,  B05D3/12 ,  B05D3/06 ,  B05D3/04 ,  H01L21/32 ,  H01L21/67 ,  H01L51/50 ,  H01L51/56 ,  H01L21/02 ,  H01L21/64 ,  B05D3/02 ,  H01L51/00

Abstract: The film production method includes: forming an ink layer on the base substrate covering the surface of the base substrate, the ink layer including a solvent and a film-forming material dissolved in the solvent; blowing gas to the ink layer so that the solvent in the ink layer spreads towards the periphery of the base substrate; removing the solvent in the ink layer so that the film-forming material in the ink layer forms a film covering the surface of the base substrate.

公开(公告)号：US20190130828A1

公开(公告)日：2019-05-02

申请号：US16050099

申请日：2018-07-31

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Quanhu Li ,  Ling Wang ,  Dongfang Yang ,  Guang Yan

IPC: G09G3/3233

Abstract: A control method for a pixel circuit, a control circuit for a pixel circuit and a display device are provided. A timing sequence of the pixel circuit includes a driving display stage and a non-display stage. The non-display stage includes a reverse bias time period. The control method includes: inputting, in the reverse bias time period, a first control signal to an input end of the pixel circuit to make both the light-emitting element and the driving transistor to be reverse biased.

公开(公告)号：US10217801B2

公开(公告)日：2019-02-26

申请号：US14771474

申请日：2014-11-14

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Guang Yan ,  Chang Yen Wu

IPC: H01L29/08 ,  H01L27/32 ,  G02F1/1335 ,  H01L51/50 ,  H01L51/52 ,  H05B33/08

Abstract: A light-emitting structure, a display device and a light source device are disclosed; the light-emitting structure comprises a first light-emitting component (10) and a second light-emitting component (20). The first light-emitting component (10) comprises a first light-emitting layer (12) and a second light-emitting layer (14) and the second light-emitting component (20) comprises a third light-emitting layer (22). A combination of electrical connection of the first light-emitting component (10) and the second light-emitting component (14) is driven by AC current as a whole; the first light-emitting layer (12) and the second light-emitting layer (14) do not emit light at the same time; the third light-emitting layer (22) emits light at the same time either with the first light-emitting layer (12) or the second light-emitting layer (14). AC drive is adopted in the light-emitting structure and is easy to achieve adjustment of color and illumination intensity.

公开(公告)号：US10134814B2

公开(公告)日：2018-11-20

申请号：US15321805

申请日：2016-04-13

Applicant: BOE Technology Group Co., Ltd.

Inventor： Guang Yan ,  Chang-Yen Wu

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

Abstract: An OLED display device includes a substrate and an OLED display units formed on the substrate, in which n is an integer which is greater than 1. The OLED display unit comprises: a first electrode, a first functional layer, a second electrode, a second functional layer, and a first light-emitting layer and a second light-emitting layer disposed between the first functional layer and the second functional layer; the first functional layer is disposed above the first electrode and the second functional layer is disposed below the second electrode, or, the first functional layer is disposed below the first electrode and the second functional layer is disposed above the second electrode. Wherein, the first light-emitting layer and the second light-emitting layer are disposed side by side in a horizontal direction, and, each of the light-emitting layers corresponds to at least two sub-pixels in the OLED display unit.

公开(公告)号：US20180323241A1

公开(公告)日：2018-11-08

申请号：US15839986

申请日：2017-12-13

Applicant: BOE Technology Group Co., Ltd.

Inventor： Guang Yan ,  Dongfang Yang ,  Chinlung Liao ,  Changyen Wu

IPC: H01L27/32 ,  H01L51/52 ,  G09G3/3258

CPC classification number: H01L27/3209 ,  G09G3/3258 ,  G09G2300/0426 ,  G09G2300/0443 ,  G09G2300/0452 ,  G09G2320/043 ,  G09G2320/0626 ,  H01L27/3202 ,  H01L27/3211 ,  H01L51/5206 ,  H01L51/5234 ,  H01L2251/558 ,  H01L2251/564

Abstract: A display panel, a driving method thereof, and a display device are provided in the field of display technology. The display panel includes: a plurality of sub-pixels arranged in an array. The plurality of sub-pixels arranged in an array include at least one target sub-pixel, and each target sub-pixel includes: a first electrode, a second electrode and N light-emitting units arranged in a laminated mode between the first electrode and the second electrode, wherein N is an integer greater than 1. A transparent electrode is arranged between any two adjacent light-emitting units among the N light-emitting units, and each light-emitting unit is configured to emit light under the drive of two electrodes adjacent thereto.

公开(公告)号：US10026914B2

公开(公告)日：2018-07-17

申请号：US15512099

申请日：2016-02-19

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Guang Yan ,  Chin-Lung Liao

IPC: H01L29/08 ,  H01L51/50 ,  H01L51/00 ,  H01L51/56

Abstract: The embodiments of the present disclosure provide an organic light emitting device including a first electrode, a second electrode, and an organic functional layer, wherein the organic functional layer includes a first doped layer fabricated in a first process, a second doped layer fabricated in a second process, and an auxiliary layer formed between the first doped layer and the second doped layer, wherein the auxiliary layer is used to improve the performance of the first doped layer. The embodiments of the present disclosure further provide a method for fabricating the organic light emitting device. The embodiments of the present disclosure also provide a display apparatus including the organic light emitting device.

公开(公告)号：US09620568B2

公开(公告)日：2017-04-11

申请号：US14907235

申请日：2015-07-20

Applicant: Boe Technology Group Co., LTD.

Inventor： Guang Yan ,  Changyen Wu ,  Li Sun

IPC: H01L35/24 ,  H01L51/00 ,  H01L21/00 ,  H01L21/84 ,  H01L27/32 ,  H01L51/52 ,  H01L51/50 ,  H01L51/56

CPC classification number: H01L27/3213 ,  H01L27/3211 ,  H01L51/001 ,  H01L51/5008 ,  H01L51/5012 ,  H01L51/504 ,  H01L51/5056 ,  H01L51/5072 ,  H01L51/5096 ,  H01L51/5206 ,  H01L51/5221 ,  H01L51/5265 ,  H01L51/56 ,  H01L2251/558

Abstract: The present invention provide a display substrate, a fabricating method thereof, and a display apparatus, and belongs to the field of display technology. The display substrate comprises a plurality of pixels, each of the pixels is divided into a plurality of light emitting units, each of the light emitting units comprises an anode, a cathode, a carrier transport layer, and a light emitting layer, wherein at least one of the plurality of light emitting units comprises a light emitting layer and at least one process auxiliary layer; the process auxiliary layer and the light emitting layer in other light emitting units are formed into an integral portion from a same material in a film forming process. Display resolution can be improved in the present invention.