公开(公告)号：US11233215B2

公开(公告)日：2022-01-25

申请号：US16063951

申请日：2017-11-24

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Can Zhang

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

Abstract: A display substrate, a manufacturing method thereof, and a display device are provided. The display substrate includes: a base substrate; an anode structure, disposed on the base substrate; a light emitting layer, disposed on a side of the anode structure away from the base substrate; and a cathode layer, disposed on a side of the light emitting layer away from the base substrate, the anode structure includes a reflective layer and an inorganic layer disposed on a side of the reflective layer away from the base substrate, the cathode layer includes a transflective layer, and the inorganic layer is configured to adjust a distance between the reflective layer and the transflective layer.

公开(公告)号：US20210159442A1

公开(公告)日：2021-05-27

申请号：US16097793

申请日：2018-03-11

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Can Zhang

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

Abstract: A method for fabricating the organic light emitting diode includes providing a substrate, forming an anode electrode layer on the substrate, forming a passivation layer on the anode electrode layer, the passivation layer having an area smaller than that of the anode electrode layer, performing ion bombardment of the anode electrode layer and the passivation layer, and removing the passivation layer.

公开(公告)号：US10909924B2

公开(公告)日：2021-02-02

申请号：US15761336

申请日：2017-09-07

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Shengji Yang ,  Xue Dong ,  Jing Lv ,  Xiaochuan Chen ,  Can Zhang ,  Wei Sun ,  Lingyun Shi

IPC: G09G3/325 ,  G09G3/3258 ,  G09G3/3283

Abstract: This application provides a pixel circuit and a driving method thereof, and a display panel. The pixel circuit includes: an input unit, a driving unit and a voltage compensation unit, wherein the input unit is connected to a data line and a first scan line, and configured to input a hopping data signal inputted at the data line to the voltage compensation unit under control of the first scan line; the voltage compensation unit is connected to a first node, a second scan line and a third scan line, and configured to generate a compensation voltage at the first node under control of the second scan line and the third scan line; the driving unit is connected to the voltage compensating unit, and configured to generate a current for driving a light emitting device to emit light using the compensation voltage generated by the voltage compensating unit at the first node. In the pixel circuit and the driving method thereof and the display panel according to the present disclosure, threshold voltage compensation performed on the driving transistor of the pixel circuit and smart displaying are combined, and resolution of the display panel can be adjusted in real time with respect to that the user has different attentions on the picture displayed by the display panel.

公开(公告)号：US10811569B2

公开(公告)日：2020-10-20

申请号：US16440115

申请日：2019-06-13

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Can Wang ,  Can Zhang ,  Han Yue ,  Ming Yang ,  Ning Cong ,  Minghua Xuan ,  Xiaochuan Chen

IPC: H01L33/46 ,  H01L27/15 ,  H01L33/00 ,  H01L33/40

Abstract: An inorganic light-emitting diode display panel and manufacturing method thereof and a display device are provided. The inorganic light-emitting diode display panel includes: a base substrate; a microcavity structure and an inorganic light-emitting diode which are disposed on the base substrate. The microcavity structure includes a reflective layer, a semi-reflective layer and a dielectric layer located between the reflective layer and the semi-reflective layer; the inorganic light-emitting diode includes a light-emitting layer, and the light-emitting layer is located in the dielectric layer; and a distance between the reflective layer and the semi-reflective layer is in a same order of magnitude as a wavelength of light emitted by the inorganic light-emitting diode.

公开(公告)号：US10797241B1

公开(公告)日：2020-10-06

申请号：US16814101

申请日：2020-03-10

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Angran Zhang ,  Can Zhang ,  Can Wang ,  Minghua Xuan ,  Han Yue ,  Ning Cong ,  Jiao Zhao ,  Ming Yang ,  Xiaochuan Chen

IPC: H01L51/00 ,  H01L51/56 ,  H01L27/32 ,  H01L27/20

Abstract: The present disclosure relates to an array substrate and a method for manufacturing the same, a display panel, and a display equipment. The array substrate includes a piezoelectric substrate, a pixel defining layer disposed on the piezoelectric substrate and formed with an opening region, and interdigital electrodes disposed oppositely at two sides of the pixel defining layer on the piezoelectric substrate and fitted on the piezoelectric substrate to form an acoustic surface standing wave including an antinodal point and a nodal point. The position of the antinodal point corresponds to the position of the opening region while the position of the nodal point corresponds to the position of the pixel defining layer. In the array substrate provided by the present disclosure, when a light emitting unit is formed in the opening region by a gas jet printing equipment, a gas material can be prevented from diffusing into adjacent opening regions.

公开(公告)号：US10763434B2

公开(公告)日：2020-09-01

申请号：US15954897

申请日：2018-04-17

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Can Zhang

IPC: H01L51/00 ,  H01L51/56 ,  G03F7/00 ,  G03F7/038 ,  G03F7/09 ,  C23C14/04 ,  G03F7/12 ,  H01L27/32 ,  G03F7/26 ,  G03F7/20

Abstract: The present disclosure in some embodiments provides a mask plate, including: a metal mask plate body provided with a plurality of first openings; and an insulation film arranged on the metal mask plate body and provided with a plurality of second openings. An orthogonal projection of at least one second opening in the plurality of second openings onto the metal mask plate body falls within the corresponding first opening or first openings.

公开(公告)号：US20200264478A1

公开(公告)日：2020-08-20

申请号：US15776388

申请日：2017-08-25

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Can Zhang ,  Xiaochuan Chen

IPC: G02F1/13357

Abstract: A light source control assembly, a display device and a method for manufacturing a light source control assembly are provided in embodiments of the disclosure. The light source control assembly, comprises: a photoelectric converter; at least one light-emitting unit; and a light controlling structure arranged opposite to and spaced apart from the at least one light-emitting unit, and configured to pass therethrough a portion of and to block another portion of light, which light is emitted by various light-emitting units of the at least one light-emitting unit, and to generate a plurality of controlled light beams separated from one another with the portion of light passing therethrough; the another portion of light blocked by the light controlling structure from the various light-emitting units is received by the photoelectric converter.

公开(公告)号：US10712482B2

公开(公告)日：2020-07-14

申请号：US15761131

申请日：2017-06-07

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Wei Wang ,  Yafeng Yang ,  Xiaochuan Chen ,  Qian Wang ,  Jifeng Tan ,  Jian Gao ,  Xinli Ma ,  Can Zhang ,  Can Wang

IPC: G02B5/18 ,  G02B5/20 ,  G02F1/1335

Abstract: A display device is disclosed. The display device includes a display panel, and a grating layer arranged inside or outside of the display panel. Along a direction pointing from a center of a sight concentration area of the display device to a non-sight concentration area of the display device, a grating period of the grating layer decreases gradually. When incident light incident on the grating layer is diffracted at an area of the grating layer corresponding to the non-sight concentration area of the display device, the obtained light of non-zero order diffraction falls into a sight of a viewer.

公开(公告)号：US10267961B2

公开(公告)日：2019-04-23

申请号：US15568068

申请日：2017-04-28

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Wei Wang ,  Yafeng Yang ,  Xiaochuan Chen ,  Jifeng Tan ,  Jian Gao ,  Can Wang ,  Xinli Ma ,  Can Zhang ,  Qian Wang

IPC: G02B5/18 ,  G02F1/1335 ,  G02B5/20

Abstract: A display device includes a display panel and a grating layer inside or outside the display panel. The display panel includes R pixels, G pixels and B pixels. The grating layer includes a R grating region, a G grating region and a B grating region; along a direction from a center of a central area of the view field of the display device to a non-central area of the view field, each of grating periods of the R, G and B grating regions gradually decreases; and lights emitted from positions of the display device corresponding to the R pixel, the G pixel and the B pixel are emitted respectively along straight lines formed by the position of the R pixel and the viewer, formed by the position of the G pixel and the viewer and formed by the position of the B pixel and the viewer.

公开(公告)号：US09502691B2

公开(公告)日：2016-11-22

申请号：US14406684

申请日：2014-05-12

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Can Zhang

IPC: H01L51/52 ,  H01L51/56

CPC classification number: H01L51/5275 ,  H01L51/56 ,  H01L2251/301 ,  H01L2251/303

Abstract: An organic light-emitting diode (OLED) display panel and manufacturing method thereof. The method of manufacturing the OLED display panel comprises forming an anode (2), an organic light-emitting layer (3), a cathode (4) and a first optical coupling layer (5) sequentially on a substrate (1), and forming a second optical coupling layer (6) on a side, away from the cathode (4), of the first optical coupling layer (5) by arranging a plurality of protrusion structures with arc-shaped surfaces. Light that would be totally reflected from a surface of the first optical coupling layer are transmitted out through the protrusion structures with the arc-shaped surfaces of the second optical coupling layer, therefore the total reflection of the light is reduced, the light extraction efficiency is increased, and the external quantum efficiency of the device is improved.

Abstract translation: 一种有机发光二极管（OLED）显示面板及其制造方法。 制造OLED显示面板的方法包括依次在基板（1）上形成阳极（2），有机发光层（3），阴极（4）和第一光耦合层（5），并形成 通过布置多个具有弧形表面的突出结构，在第一光耦合层（5）的远离阴极（4）的一侧上的第二光耦合层（6）。 将从第一光耦合层的表面全反射的光通过具有第二光耦合层的弧形表面的突出结构传出，因此光的全反射降低，光提取效率为 提高了器件的外部量子效率。