Patents Assigned to BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.
  • Publication number: 20230138001
    Abstract: A display panel and a display device are provided. The display panel includes a plurality of pixel units, each pixel unit includes a pixel circuit and a light-emitting element, the pixel circuit is configured to drive the light-emitting element, the pixel circuit includes a driving transistor, the plurality of pixel units include a first pixel unit and a second pixel unit, the first pixel unit is configured to emit light of a first color, the second pixel unit is configured to emit light of a second color, the driving transistor of the pixel circuit of the first pixel unit includes a first channel, and the driving transistor of the pixel circuit of the second pixel unit includes a second channel, a width-to-length ratio of the first channel is greater than that of the second channel, and a shape of the first channel is different from that of the second channel.
    Type: Application
    Filed: November 3, 2021
    Publication date: May 4, 2023
    Applicants: BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xueguang HAO, Yongda MA, Hongfei CHENG
  • Publication number: 20230123009
    Abstract: The present application discloses a circuit for generating spread-spectrum synchronous clock signal. The circuit includes a frequency detector comprising a fraction controller configured to compare an input signal of a first frequency with a feedback signal of a second frequency in a loop of feedback to generate a first control signal and a second control signal alternately for determining a control word to track the first frequency and a phase-shift controller configured to register n levels for the first control signal and the second control signal to introduce n phase delays for changing a fraction part of the control word randomly to provide a broadened boundary. The circuit also includes a digitally controlled oscillator configured to generate a synthesized periodic signal based on a base time unit, the first frequency, and the control word, with the second frequency being locked within the broadened boundary of the first frequency.
    Type: Application
    Filed: October 9, 2019
    Publication date: April 20, 2023
    Applicants: Beijing BOE Technology Development Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xiangye Wei, Liming Xiu
  • Patent number: 11631356
    Abstract: A display panel and a display device are provided, the display panel includes a gate driving circuit, a first pixel module, and a second pixel module, the first pixel module includes a first pixel circuit, and the second pixel module includes a second pixel circuit; the gate driving circuit respectively provides corresponding gate driving signals for the first pixel circuit and the second pixel circuit; in the first display region, the number of columns of the pixel circuit included by the first pixel module is greater than the maximum number of columns of the pixel circuit included by the second pixel module in the second display region; the display panel further includes a loading structure arranged in a non-display region; the load structure is electrically connected to the gate wiring; the gate wiring is wiring between the gate driving circuit and the second pixel circuit for providing the corresponding gate driving signals to the second pixel circuit.
    Type: Grant
    Filed: December 20, 2021
    Date of Patent: April 18, 2023
    Assignees: Beijing BOE Technology Development Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xueguang Hao, Hongfei Cheng, Yongda Ma
  • Patent number: 11630531
    Abstract: A nanopaper and a fabricating method thereof, a method of graphic processing and an electronic device are provided. The nanopaper includes: a transparent substrate, wherein the transparent substrate includes a micro-nano-fiber; a plurality of pressure sensing units, wherein the pressure sensing units are located on one side of the transparent substrate, and resistances of the pressure sensing units are able to vary with deformation of the transparent substrate; and a plurality of leads, wherein the plurality of leads are connected to the pressure sensing units, and are configured to be able to separately output a sensing signal of each of the plurality of pressure sensing units.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: April 18, 2023
    Assignees: Beijing BOE Technology Development Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Kairan Liu, Wei Cao
  • Publication number: 20230103363
    Abstract: A display apparatus includes display recognition units and a first processing device. Each of the display recognition units includes one or more sub-pixels and a photosensitive sensing device. The photosensitive sensing device is configured to convert reflected light of light emitted from at least one sub-pixel into a first electrical signal, and convert external light containing information entering from a display side into a second electrical signal. The first processing device is connected to photosensitive sensing devices of the display recognition units, and configured to obtain a texture image according to first electrical signals output by the photosensitive sensing devices, and determine the information contained in the external light according to a second electrical signal output by at least one photosensitive sensing device.
    Type: Application
    Filed: May 26, 2021
    Publication date: April 6, 2023
    Applicants: BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Wenbo LI
  • Publication number: 20230100489
    Abstract: The present disclosure relates to a mirror display device, an image display method, an electronic device and a storage medium are provided and related to the technical field of optics. The mirror display device comprises: an optical switch array (101) comprising multiple optical switches, the optical switches being used for obtaining, in a first state, a first light beam based on incident light; a reflection layer (102) arranged on one side of the optical switch array (101) and used for receiving and reflecting the first light beam incident to the reflection layer (102); and a control module (103) for determining a reflection region and a non-reflection region, controlling the optical switch corresponding to the reflection region to be in the first state, and controlling the optical switch corresponding to the non-reflection region to be in a second state that is different from the first state.
    Type: Application
    Filed: June 11, 2021
    Publication date: March 30, 2023
    Applicants: Beijing BOE Technology Development Co., Ltd., BOE Technology Development Co., Ltd.
    Inventors: Wenbo LI, Lijie ZHANG
  • Patent number: 11607682
    Abstract: A detection chip, a using method for the same, and a reaction system. The detection chip includes a first substrate, a micro-cavity defining layer, and a heating electrode. The micro-cavity defining layer is on the first substrate and defines a plurality of micro-reaction chambers. The heating electrode is on the first substrate and is closer to the first substrate than the micro-cavity defining layer, and is configured to heat a plurality of micro-reaction chambers. The orthographic projection of the plurality of micro-reaction chambers on the first substrate is within the orthographic projection of the heating electrode on the first substrate.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: March 21, 2023
    Assignee: BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventors: Zhihong Wu, Zijian Zhao, Yudan Yin, Mengjun Hou, Kang Peng
  • Publication number: 20230078114
    Abstract: Disclosed are a light-emitting diode (LED) device, a manufacturing method thereof, and a display panel. The LED device includes a base substrate, a first electrode layer, an electron transport layer, a quantum dot light-emitting layer and a second electrode layer. The first electrode layer is laminated on the base substrate; the electron transport layer is laminated on a surface of the first electrode layer away from the base substrate; the quantum dot light-emitting layer is laminated on a surface of the electron transport layer away from the first electrode layer; the second electrode layer is laminated on the surface of the quantum dot light-emitting layer away from the electron transport layer; wherein the surface of the electron transport layer away from the first electrode layer is a first concave-convex surface including a plurality of protrusions.
    Type: Application
    Filed: May 21, 2021
    Publication date: March 16, 2023
    Applicants: BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Dong LI, Boris KRISTAL
  • Patent number: 11603629
    Abstract: A container and a preparation method thereof are provided. A material forming the container includes at least two types of oxidized nanocelluloses interlaced with each other, the at least two types of oxidized nanocelluloses being configured to have different degrees of expansion after absorbing moisture in a same environment. In a dry condition, the at least two types of oxidized nanocelluloses do not expand, so the structure of the container is relatively dense and the air permeability is poor, which can sufficiently maintain moisture of an article stored in the container. In case the article itself or other reasons cause high humidity, different oxidized nanocelluloses of the container expand after absorbing moisture, so that gaps between different oxidized nanocelluloses becomes larger, and the air permeability of the container becomes better, which can discharge excessive moisture, enabling the container to self-adjust the air permeability based on humidity.
    Type: Grant
    Filed: September 13, 2019
    Date of Patent: March 14, 2023
    Assignees: Beijing BOE Technology Development Co., Ltd., BOE Technology Group Co., Ltd.
    Inventor: Kairan Liu
  • Patent number: 11594579
    Abstract: The present application provides a display substrate, the display substrate including a plurality of sub-pixel units, the plurality of sub-pixel units arranged in a plurality of rows and columns, wherein the plurality of columns of the sub-pixel units include alternatingly disposed solid color sub-pixel unit columns and mixed color sub-pixel unit columns, the solid color sub-pixel unit columns including a plurality of sub-pixel units corresponding to the same color, and in the mixed color sub-pixel unit columns, adjacent two sub-pixel units correspond to different colors. In the same row of sub-pixel units, the sub-pixel units on both sides of the sub-pixel unit in the solid color sub-pixel unit column have different colors. The utility model also provides a display device. The display device does not appear jagged or blurred when displaying an image.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: February 28, 2023
    Assignees: Beijing BOE Technology Development Co., Ltd., BOE Technology Group Co., Ltd.
    Inventor: Jian Xu
  • Patent number: 11591370
    Abstract: A peptoid compound, a manufacturing method of a peptoid compound, an oligomer, a pharmaceutical composition, use of the pharmaceutical composition in the preparation of a medicament for detecting or diagnosing a disease related to tyrosine kinase HER2, and a kit for identifying circulating tumor cells are provided, the peptoid compound includes: a cysteine (Cys) subunit, a butanediamine (Nlys) subunit, a 3,4-methylenedioxybenzylamine (Npip) subunit, a 3-aminopropanic acid (Nce) subunit and a 1-naphthylamine (Na) subunit, and both the peptoid compound and the oligomer have a strong ability to bind to HER2 protein on surfaces of circulating tumor cells (CTCs), and a technology of diagnosing breast cancer on the basis of the peptoid compound can realize non-invasive and label-free rapid diagnosis, in addition, the methods for synthesizing the peptoid compound and the oligomer are simple, the preparation efficiency is high, and the production cost is low.
    Type: Grant
    Filed: August 22, 2019
    Date of Patent: February 28, 2023
    Assignees: BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zijian Zhao, Yudan Yin
  • Patent number: 11594191
    Abstract: The present disclosure relates to the field of display technologies, and provides a gamma circuit. The gamma circuit includes: a plurality of positive gamma voltage output terminals, a plurality of negative gamma voltage output terminals in one-to-one correspondence with the plurality of positive gamma voltage output terminals, and a plurality of voltage conversion circuits. Each of the voltage conversion circuits is configured to output a negative gamma reference voltage to the negative gamma voltage output terminal based on a positive gamma reference voltage output by the positive gamma voltage output terminal corresponding to the negative gamma voltage output terminal.
    Type: Grant
    Filed: December 20, 2021
    Date of Patent: February 28, 2023
    Assignees: Beijing BOE Technology Development Co., Ltd., BOE Technology GroUp Co., Ltd.
    Inventors: Xueguang Hao, Yongda Ma, Hongfei Cheng
  • Publication number: 20230055663
    Abstract: A light-emitting substrate, comprising a base, a pixel defining layer arranged on the base, and a plurality of light-emitting devices. The pixel defining layer is provided with a plurality of openings, and each light-emitting device comprises a quantum dot light-emitting pattern arranged in an opening, wherein each opening has a side wall, the side wall comprises a first portion and a second portion, the first portion is the portion of the side wall that is in contact with the quantum dot light-emitting pattern, and the second portion is the portion of the side wall that is away from the base relative to the first portion. The light-emitting substrate further comprises at least one blocking unit, each blocking unit comprises at least one siloxane chain segment, and each siloxane chain segment comprises at least one silicon oxygen bond; and each blocking unit is located in an opening, and at least one siloxane chain segment in each blocking unit is grafted to the second portion of a corresponding side wall.
    Type: Application
    Filed: May 14, 2021
    Publication date: February 23, 2023
    Applicants: BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Aidi ZHANG
  • Patent number: 11584300
    Abstract: A rear-view mirror includes a body, wherein the body includes a first polarizer, a dimming layer, a transflective polarizer, and a display component which are sequentially laminated. The dimming layer is configured to adjust a polarization direction of light passing through the dimming layer. By adjusting the polarization direction of the light passing through the dimming layer via the dimming layer, the reflectivity and transmittance of the transflective polarizer to the light can be changed, such that both an anti-glare function and a display function of the rear-view mirror can be achieved.
    Type: Grant
    Filed: March 26, 2021
    Date of Patent: February 21, 2023
    Assignees: BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Wenbo Li
  • Patent number: 11588491
    Abstract: A signal generating electric circuit, a signal generating method, a digit-to-time converting electric circuit and a digit-to-time converting method. The signal generating electric circuit includes: a first generating electric circuit configured for, based on a first frequency control word and a reference time unit, generating a periodic first output signal; and a second generating electric circuit configured for, based on a second frequency control word and the reference time unit, generating a periodic second output signal. The first frequency control word includes a first integer part and a first fractional part, the second frequency control word includes a second integer part and a second fractional part, the first integer part is equal to the second integer part, the first fractional part is not zero, the second fractional part is zero, and a period of the first output signal and a period of the second output signal are not equal.
    Type: Grant
    Filed: August 10, 2020
    Date of Patent: February 21, 2023
    Assignees: BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xiangye Wei, Liming Xiu
  • Patent number: 11579354
    Abstract: Disclosed is a backlight module. The backlight module includes a back plate, a light guide plate, and a clamp; the back plate includes a back plate body, and a plurality of side plates disposed along a periphery of the back plate body and connected to the back plate body, and a plane of each side plate is intersected with a plane of the back plate body. The light guide plate is disposed on a side, connected to the side plate, of the back plate body, and a gap is present between the light guide plate and each of the plurality of side plates. The clamp is disposed in the gap between the light guide plate and at least part of the plurality of side plates, and interference-fitted with the gap. The clamp is resilient, and the clamp and the side plate are positioned by a projection-recess fitting structure.
    Type: Grant
    Filed: November 1, 2021
    Date of Patent: February 14, 2023
    Assignees: HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventors: Qingyi Zhuang, Haifeng Xu, Ran Tao, Jinfeng Zhang, Jing Li
  • Patent number: 11580890
    Abstract: The present disclosure relates to a driving unit. The driving unit may include a first driving sub-circuit, a second driving sub-circuit, and a driving control circuit. The first driving sub-circuit may include a plurality of first switching elements, and at least some of the plurality of first switching elements may be configured to output a first signal to a first output terminal of the driving unit in response to a control signal from the driving control circuit. The second driving sub-circuit may include one or more second switching elements, and at least one of the one or more second switching elements may be configured to output a second signal to a second output terminal of the driving unit in response to the control signal from the driving control circuit. The driving control circuit may be configured to output the control signal at a control signal output terminal.
    Type: Grant
    Filed: April 28, 2022
    Date of Patent: February 14, 2023
    Assignees: BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jianbo Xian, Chunping Long, Hui Li, Yong Qiao
  • Patent number: 11581513
    Abstract: The present disclosure provides a display substrate, a method for manufacturing the same, and a display device. The display substrate includes: a base substrate; a plurality of light emitting units on the base substrate, where the plurality of light emitting units include a plurality of pixel display areas; and a reflection layer on the base substrate. The reflection layer includes a plurality of patterns and a plurality of openings defined between adjacent patterns of the plurality of patterns, and positions of the plurality of openings are corresponding to positions of the plurality of pixel display areas.
    Type: Grant
    Filed: July 28, 2020
    Date of Patent: February 14, 2023
    Assignees: Beijing BOE Technology Development Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Wenbo Li, Xueyan Tian
  • Patent number: 11574614
    Abstract: The present disclosure provides a method and device for switching a display channel, a display driving device and a display device. The method includes: sending a first switching signal to a write controller of a current display channel when a switching instruction for switching from the current display channel to a target display channel is received; acquiring a frame address in which final write operation of data is completed, and taking the frame address as a first address and a next frame address as a second address; sending a second switching signal to a write controller of the target display channel; and sending a third switching signal to a read controller.
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: February 7, 2023
    Assignee: BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventors: Xitong Ma, Lihua Geng, Xianzhen Li, Donglei Mu
  • Patent number: 11574588
    Abstract: The present disclosure provides a pixel driving circuit including a driving transistor, a capacitor and a light emitting device, and further includes: a first reset module; a data writing module; a threshold compensation module including a compensation transistor; a light emitting control module configured to disconnect the first power terminal from the first electrode of the driving transistor and disconnect the second electrode of the driving transistor from the light emitting device in the data writing phase and the reset phase; and to enable the first power terminal and the first electrode of the driving transistor to be electrically connected to each other and enable the second electrode of the driving transistor and the light emitting device to be electrically connected to each other in a light emitting phase; the compensation transistor is an oxide transistor, and the driving transistor is a low temperature poly-silicon transistor.
    Type: Grant
    Filed: June 15, 2020
    Date of Patent: February 7, 2023
    Assignees: CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventors: Shaoru Li, Rui Wang, Ni Yang