Patents Assigned to BOE Technology Group Co., Ltd.
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Patent number: 11251207Abstract: The present disclosure discloses a method for preparing an array substrate, an array substrate and a display panel, wherein the method comprises: forming a buffer layer on a substrate in a first region and a second region, wherein the buffer layer has a groove located in the second region; forming a first indium oxide thin film on the buffer layer in the first region; forming a second indium oxide thin film in the groove; performing a reduction process on the second indium oxide thin film to obtain indium particles; forming an amorphous silicon thin film in the groove, and inducing the amorphous silicon of the amorphous silicon thin film to form microcrystalline silicon at a preset temperature by using the indium particles; and removing the indium particles in the microcrystalline silicon to form a microcrystalline silicon semiconductor layer of the microcrystalline silicon thin film transistor.Type: GrantFiled: April 13, 2020Date of Patent: February 15, 2022Assignee: BOE Technology Group Co., Ltd.Inventors: Yupeng Gao, Guangcai Yuan, Feng Guan, Zhi Wang, Jianhua Du, Zhaohui Qiang, Chao Li
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Patent number: 11251238Abstract: Disclosed are a display device and a manufacturing method therefor. The display device comprises a touch trace and a photonic crystal structure provided in a common layer, wherein an orthographic projection of the photonic crystal structure on a substrate is overlapped with an orthographic projection of a pixel light emitting unit on the substrate.Type: GrantFiled: February 12, 2018Date of Patent: February 15, 2022Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventor: Chuni Lin
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Patent number: 11251241Abstract: A pixel defining structure and a fabrication method thereof, a display substrate and a jet printing method are provided. The pixel defining structure includes a substrate, and a plurality of pixel defining units on the substrate, including at least one first pixel defining unit and at least one second pixel defining unit which are arranged along a first direction and a second direction which intersect with each other, wherein each pixel defining unit has a first surface and a second surface opposite to each other and an opening communicating the first surface with the second surface, wherein, the inward inclination angle of at least one side edge of the at least one second pixel defining unit is smaller than the inward inclination angle of at least one side edge of the at least one first pixel defining unit.Type: GrantFiled: November 28, 2018Date of Patent: February 15, 2022Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventor: Wenjun Hou
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Patent number: 11249585Abstract: The present application provides a method of fabricating a substrate. The method includes forming an insulating material layer on a base substrate; forming a plurality of channels extending into the insulating material layer; and forming a plurality of signal lines respectively in the plurality of channels. Each individual one of the plurality of signal lines is formed on a lateral side of a respective one of the plurality of channels.Type: GrantFiled: June 5, 2018Date of Patent: February 15, 2022Assignees: Hefei Xinsheng Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Xiaoyue He, Taofeng Xie, Wenjin Fan
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Patent number: 11248290Abstract: A mask includes a shielding portion and a plurality of hollow regions. The shielding portion includes: a plurality of shielding strips, a plurality of raised portions and a plurality of grooves. Side surfaces of some of the plurality of shielding strips are sequentially connected to form one of the plurality of hollow regions. Each raised portion is disposed on a side surface of a corresponding one of the plurality of shielding strips close to a corresponding hollow region, and each raised portion is connected with the side surface of the shielding strip. Each groove is at least partially formed in a first surface of a corresponding one of the plurality of raised portions, and the first surface is parallel to a plate surface of the mask.Type: GrantFiled: September 25, 2018Date of Patent: February 15, 2022Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Zhenli Zhou, Zi Qiao, Zhiliang Jiang
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Patent number: 11251231Abstract: A pixel arrangement structure, an organic light emitting diode display panel, a display device and a mask plate assembly are disclosed in the disclosure. The pixel arrangement structure includes a plurality of first sub-pixels, a plurality of second sub-pixels, a plurality of third sub-pixels. The positions of the sub-pixels are not overlapped with each other. One of the plurality of first sub-pixels is located at the center position of a first virtual rectangle. Four of the plurality of first sub-pixels are located at four vertex angle positions of the first virtual rectangle, respectively. Four of the plurality of second sub-pixels are located at the center positions of four sides of the first virtual rectangle, respectively. The first virtual rectangle is divided into four second virtual rectangles, and the inside of each of the four second virtual rectangles comprises one third sub-pixel of the plurality of third sub-pixels.Type: GrantFiled: December 17, 2018Date of Patent: February 15, 2022Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Weinan Dai, Yang Wang, Yangpeng Wang, Benlian Wang, Haijun Yin, Haijun Qiu, Yao Hu
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Patent number: 11249595Abstract: Provided are a shift register unit of a gate driving circuit (GOA), a gate driving circuit and a driving method. The shift register unit includes an input sub-circuit, configured to output an input signal to a first node; a pull-up control sub-circuit, configured to charge a pull-up node through a first power supply terminal under the control of a potential of the first node; an output sub-circuit, configured to output a clock signal of a clock signal terminal to an output terminal under the control of a potential of the pull-up node; a first touch control sub-circuit configured to pull down levels of the pull-up node and the output terminal to a second potential through the second power supply terminal under the control of a touch control keeping signal of the touch control keeping signal terminal.Type: GrantFiled: April 17, 2018Date of Patent: February 15, 2022Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Wei Xue, Silin Feng, Zhifu Dong
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Patent number: 11249591Abstract: A shift register unit, a driving method for driving the shift register unit, a gate driver, a touch display panel, and a touch display device are disclosed. The shift register unit includes an input circuit being configured to control a level of a first node in response to an input pulse received at an input terminal; a first control circuit being configured to, under control of the input pulse received at the input terminal and a touch enable signal received a touch enable signal terminal, connect a first scan voltage terminal to the first node to control the level of the first node; an output circuit being configured to connect a clock terminal to an output terminal in response to a potential of the first node, to output a clock signal received by the clock terminal at the output terminal.Type: GrantFiled: January 21, 2020Date of Patent: February 15, 2022Assignees: Hefei BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventor: Zhixiang Fang
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Patent number: 11250795Abstract: A method of driving an electronic paper display apparatus includes: providing a preprocessing signal in the first pulse signal to the first electrode in the display stage of the first image display stage, so that the first particles and the third particles are mixed, and the first particles and the third particles are closer to a display side of the display apparatus than the second particles; and providing a first sub-pulse signal in the first pulse signal to the first electrode in the display stage of the first image display stage after providing the preprocessing signal, so that the third particles are closer to the display side of the display apparatus than the first particles and the second particles and the microcup displays the third color.Type: GrantFiled: June 25, 2020Date of Patent: February 15, 2022Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Yinan Gao, Qingqing Ma, Shuo Li, Chao Tian, Guojie Qin, Xiang Yuan, Junpeng Han, Tianjiao Wang, Yin Yuan, Lizhong Zhang
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Patent number: 11251309Abstract: Embodiments of the present disclosure relate to a thin film transistor, a method for manufacturing the same, a display panel, and a display device. The thin film transistor includes a substrate, an active layer located on the substrate, and a light shielding layer, a first dielectric layer, and a second dielectric layer located between the substrate and the active layer, wherein the first dielectric layer is located between the second dielectric layer and the substrate, and wherein a refractive index of the first dielectric layer is greater than a refractive index of the second dielectric layer.Type: GrantFiled: December 14, 2017Date of Patent: February 15, 2022Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Jiangbo Chen, Young Suk Song, Wei Li, Liangchen Yan
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Patent number: 11249581Abstract: Provided are a touch control structure, a touch control method and a touch control device. The touch control structure includes: a touch control layer; an electrode layer disposed on the touch control layer; and a dielectric material layer disposed on a side of the electrode layer away from the touch control layer, wherein the dielectric material layer has a lipophilicity variable with a voltage applied by the electrode layer.Type: GrantFiled: April 30, 2019Date of Patent: February 15, 2022Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Qi Wang, Tingting Wang, Bo Zhou, Yongzhi Song
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Patent number: 11251239Abstract: A display device includes: a display panel; a display circuit board, a first end of which is electrically connected to the display panel; a touch circuit board, a first end of which is electrically connected to the display panel; a support layer disposed on a surface of the display panel; and a first heat dissipation layer and a second heat dissipation layer. The first heat dissipation layer and the second heat dissipation layer are respectively disposed on opposite sides of a surface of the support layer facing away from the display panel. A second end of the display circuit board and a second end of the touch circuit board are respectively disposed on the first heat dissipation layer and the second heat dissipation layer. A connecting member for electrically connecting the first heat dissipation layer and the second heat dissipation layer is provided between the first and second heat dissipation layers.Type: GrantFiled: April 16, 2020Date of Patent: February 15, 2022Assignees: CHONGQING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Dong Chen, Yaxin Yang
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Patent number: 11250782Abstract: A pixel circuit, a pixel driving method, and a display device are provided. The pixel circuit includes a light emitting element, a first voltage control circuit, a second voltage control circuit, a driving circuit, a first energy storage circuit, a data writing circuit, and a reset circuit. The first voltage control circuit includes a first control transistor, the driving circuit includes a driving transistor, and a difference between a threshold voltage of the first control transistor and a threshold voltage of the driving transistor is within a first range. The first voltage control circuit controls a potential of a first control node under control of a reset control signal; and the second voltage control circuit controls a potential of a second control node under control of the potential of the first control node.Type: GrantFiled: March 26, 2021Date of Patent: February 15, 2022Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Weixing Liu, Zhiqiang Xu, Tieshi Wang, Wei Qin, Wanpeng Teng
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Patent number: 11251403Abstract: The present application provides display substrate having a display area and a peripheral area. The display substrate includes a base substrate; a plurality of light emitting elements on the base substrate and in the display area; an encapsulating layer on a side of the plurality of light emitting elements distal to the base substrate to encapsulate the plurality of light emitting elements; and a first barrier layer on the base substrate and in the peripheral area and forming a first enclosure substantially surrounding a first area. The first barrier layer includes an up-conversion material configured to convert an incident light into an ultraviolet light. The encapsulating layer includes a first organic encapsulating sub-layer on the base substrate.Type: GrantFiled: April 28, 2018Date of Patent: February 15, 2022Assignee: BOE Technology Group Co., Ltd.Inventor: Chengyuan Luo
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Patent number: 11250744Abstract: An optical adjustment method and an optical adjustment device for a display panel, and a display device are provided. The optical adjustment method includes: displaying N groups of testing images sequentially on the display panel, each group of testing images including M images distributed at different display regions of the display panel, each image corresponding to one to-be-adjusted reference color, N being an integer greater than or equal to 1, M being an integer greater than or equal to 1; and when each group of testing images are displayed on the display panel, detecting, by an optical detection unit, optical parameters of the M images in the group of testing images simultaneously, and performing optical adjustment on the display panel in accordance with the optical parameters.Type: GrantFiled: June 28, 2019Date of Patent: February 15, 2022Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Liwei Huang, Wei He, Jing Wang, Zhiyong Yang, Xueping Li, Wei Li, Shihua Huang, Xue Jiang, Xiao Luo, Wei Liu, Xiaohong Chen
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Patent number: 11249580Abstract: A touch display panel, a method for driving a touch display panel, and an electronic device are provided. The touch display panel includes a plurality of touch detection lines, a plurality of touch electrodes, a plurality of pixel units, and an insulating layer. The plurality of touch electrodes are in one-to-one correspondence with the plurality of touch detection lines, each of the plurality of pixel units includes a light emitting device, and the plurality of touch electrodes are configured to implement a touch function during a touch phase; and each of the plurality of touch electrodes is further configured to function as a cathode or an anode of the light emitting device to implement a display function during a display phase.Type: GrantFiled: May 7, 2018Date of Patent: February 15, 2022Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.Inventors: Weiyun Huang, Yue Long
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Patent number: 11249586Abstract: The present application discloses a voltage-supply circuit including a voltage-supply sub-circuit coupled to a plurality of common-electrode blocks respectively via a plurality of signal lines in a display panel and configured to provide an initializing common-electrode voltage to each common-electrode block via a respective one signal line during an initialization period of a display time. The voltage-supply circuit further includes a voltage-feedback sub-circuit configured to collect a feedback voltage from the respective one signal line during the initialization period. Additionally, the voltage-supply circuit includes a voltage-comparison sub-circuit configured to compare the feedback voltage and a standard common-electrode voltage and to cause a generation of a trigger signal when a difference between the feedback voltage and the standard common-electrode voltage changes polarity.Type: GrantFiled: October 31, 2018Date of Patent: February 15, 2022Assignees: Chongqing BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.Inventors: Zhenguo Tian, Shuang Hu, Shuai Chen, Xuebo Liang, Hong Chen, Xiuzhu Tang, Chuan Li, Yanan Zhao
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Patent number: 11248756Abstract: The present disclosure provides a backlight module and a display apparatus. In one embodiment, the backlight module includes: a frame body defining a cavity therein and having an opening communicated with the cavity; and a light strip disposed at the opening of the frame body and detachably connected to the frame body, wherein the light strip comprises a lamp bead that is disposed toward the cavity through the opening.Type: GrantFiled: June 18, 2020Date of Patent: February 15, 2022Assignees: K-TRONICS (SUZHOU) TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventor: Jun Xiao
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Patent number: 11251392Abstract: A display substrate and a preparation method thereof, a display device and a preparation method thereof and a display apparatus are proposed in the disclosure. The preparation method of the display substrate includes: providing a flexible base, an upper surface thereof having a display area and a circuit connection area, and a portion of the flexible base including a bending portion and a connection portion; disposing a groove on the lower surface, and an orthographic projection of the groove on the upper surface corresponding to a position of an orthographic projection of the bending portion on the upper surface; disposing a back plate, an OLED light emitting device and a package structure in a sequence on the display area, and disposing a circuit connection layer on the circuit connection area. Bending the bending portion downward to extend, the connection portion is located on a side of the lower surface.Type: GrantFiled: September 30, 2019Date of Patent: February 15, 2022Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Penghao Gu, Chunyan Xie, Song Zhang, Weifeng Zhou, Lingzhi Qian
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Patent number: 11250783Abstract: A gate-driver-on-array (GOA) circuit includes N GOA units cascaded in series to generate N sets of driving signals. Each n-th GOA unit includes a first terminal configured to receive a high-level voltage, a second terminal configured to receive a low-level voltage, and a clock signal terminal configured to receive a clock signal, an input terminal and a reset terminal respectively configured to receive internal signals from two alternative GOA units in the series, a first output terminal configured to output a gate-driving signal, and a second output terminal configured to output a node voltage signal. Each n-th set of the N sets of driving signals includes a first driving signal being a gate-driving signal from a (n?1)th GOA unit, a second driving signal being a gate-driving signal from a n-th GOA unit, and a third driving signal being a node voltage signal from the n-th GOA unit for driving an AMOLED pixel circuit.Type: GrantFiled: August 16, 2017Date of Patent: February 15, 2022Assignees: BOE Technology Group Co., Ltd., Hefei Xinsheng Optoelectronics Technology Co., Ltd.Inventors: Zuquan Hu, Xiping Wang