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公开(公告)号：US20210407408A1
公开(公告)日：2021-12-30
申请号：US16763219
申请日：2019-11-01
Applicant: BOE Technology Group Co., Ltd.
Inventor： Ming YANG , Ning CONG , Han YUE , Can ZHANG , Can WANG , Jiao ZHAO , Angran ZHANG , Minghua XUAN , Xiaochuan CHEN
IPC: G09G3/3233 , G09G3/00 , G09G3/3291
Abstract: A pixel circuit and driving method are provided. The pixel circuit includes a light emitting device having a first terminal and a second terminal; a driving circuit, electrically connected to the first terminal of the light emitting device, for providing power to the light emitting device; a voltage comparator for generating a pulse width modulated signal having a duty cycle based on a data voltage and a reference voltage; an offset voltage detecting circuit, electrically connected to an output terminal of the voltage comparator, for detecting an input offset voltage of the voltage comparator; and a data voltage compensation circuit, electrically connected to the offset voltage detecting circuit, for compensating the data voltage according to the input offset voltage detected.
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公开(公告)号：US20210249634A1
公开(公告)日：2021-08-12
申请号：US16973005
申请日：2020-03-18
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
IPC: H01L51/52
Abstract: The present disclosure provides a display assembly and a virtual reality display device. The display assembly includes an electroluminescent element, a packaging layer and a light converging layer arranged sequentially. The light converging layer is configured to converge light emitted by the electroluminescent element and transmitted through the packaging layer. The electroluminescent element includes a plurality of pixels, the light converging layer is tightly attached to the packaging layer, and an orthogonal projection of each pixel onto a surface of the packaging layer to which the light converging layer is tightly attached is completely covered by the light converging layer.
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公开(公告)号：US20210098501A1
公开(公告)日：2021-04-01
申请号：US16465292
申请日：2018-11-28
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Dongni LIU , Can WANG , Minghua XUAN , Lei WANG , Li XIAO , Liang CHEN , Shengji YANG , Pengcheng LU , Xiaochuan CHEN
IPC: H01L27/12
Abstract: A display substrate includes a first substrate, a first sub-pixel layer and a second sub-pixel layer positioned on the first substrate; the first sub-pixel layer includes a plurality of first sub-pixels, the second sub-pixel layer includes a plurality of second sub-pixels, and a first orthographic projection of the first sub-pixel on the first substrate does not overlap with a second orthographic projection of the second sub-pixel on the first substrate. A display panel, a display device and a method for manufacturing the display substrate are also disclosed.
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公开(公告)号：US20210097931A1
公开(公告)日：2021-04-01
申请号：US16839590
申请日：2020-04-03
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Han YUE , Minghua XUAN , Can ZHANG , Can WANG , Ning CONG , Xiaochuan CHEN
IPC: G09G3/325 , G09G3/3291 , G09G3/36
Abstract: A pixel driving circuit includes a current control circuit and a time control circuit, the current control circuit controls to generate a driving current, and outputs the driving current through a driving current output terminal, the time control circuit includes a first data writing-in circuit and a driving time control circuit. The first data writing-in circuit writes a first data voltage provided by a first data line to the driving time control circuit under the control of a first gate driving signal provided by a first gate line. The driving time control circuit is connected to a reference voltage terminal, the current control circuit, the first data writing-in circuit, and a light emitting element, and controls a light emitting time period of the light emitting element based on the reference voltage and the first data voltage, the reference voltage terminal is used to provide the reference voltage.
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55.发明申请公开(公告)号：US20200066942A1
公开(公告)日：2020-02-27
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
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.
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Patent Agency Ranking
公开(公告)号：US20200066805A1
公开(公告)日：2020-02-27
申请号：US16489789
申请日：2019-03-25
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Ming YANG , Minghua XUAN , Ning CONG , Han YUE , Can ZHANG , Can WANG , Xiaochuan CHEN , Shengji YANG , Liang CHEN
Abstract: The present disclosure relates to a display panel and a method of fabricating the same. An organic light emitting diode (OLED) display panel, comprising: a plurality of touch electrodes configured to sense a touch; touch electrode leads electrically connected to the plurality of touch electrodes; and OLED devices each comprising a cathode and a functional layer having a via-hole; wherein, the plurality of touch electrodes function as cathodes of the OLED devices, and are electrically connected to the touch electrode leads through the via-holes.
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公开(公告)号：US20200020274A1
公开(公告)日：2020-01-16
申请号：US16450288
申请日：2019-06-24
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Han YUE , Minghua XUAN , Ning CONG , Ming YANG , Can ZHANG , Can WANG , Xiaochuan CHEN
IPC: G09G3/32
Abstract: A grayscale adjustment circuit, a driving method thereof and a display device are provided. The circuit includes: an input sub-circuit configured to output a signal of a data signal terminal to a driving sub-circuit under a control of the scanning signal terminal, the driving sub-circuit configured to store an output signal of the input sub-circuit and output a signal of the first voltage terminal to a switching control sub-circuit under a control of the output signal of the input sub-circuit, a switching time control sub-circuit configured to output a signal of each switching time signal terminal to the switching control sub-circuit under a control of each switching time control terminal, the switching control sub-circuit configured to output an output signal of the driving sub-circuit to the light-emitting sub-circuit under a control of an output signal of the switching time control sub-circuit to control the light-emitting sub-circuit to emit light.
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公开(公告)号：US20180364505A1
公开(公告)日：2018-12-20
申请号：US15737007
申请日：2017-07-31
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Jifeng TAN , Wei WANG , Yafeng YANG , Xiaochuan CHEN , Jian GAO , Can WANG , Can ZHANG , Xinli MA , Xiandong MENG , Xianqin MENG , Dacheng ZHANG
IPC: G02F1/13 , G02F1/1335 , G02F1/1343 , G02F1/13363
Abstract: A display panel and a display device are disclosed and belong to the field of display technology. The display panel comprises a first substrate and a second substrate opposite to each other, and a liquid crystal layer, a first electrode, as second electrode, a waveguide layer and a grating layer between the first and second substrates; wherein the waveguide layer is on a side of the liquid crystal layer proximal to the first substrate; and the grating layer is in contact with the liquid crystal layer; the first electrode and the second electrode are configured to adjust a refractive index of the liquid crystal layer by changing voltages applied thereto; and a coupling efficiency at which light is coupled out of the waveguide layer is determined according to a difference between a refractive index of the grating layer and the refractive index of the liquid crystal layer.
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公开(公告)号：US20180217389A1
公开(公告)日：2018-08-02
申请号：US15749494
申请日：2017-06-07
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Wei WANG , Yafeng YANG , Xiaochuan CHEN , Jifeng TAN , Xinli MA , Can ZHANG , Can WANG , Jian GAO , Qian WANG
CPC classification number: G02B27/22 , G02B5/1819 , G02B5/201 , G02B27/4205 , H04N2213/001
Abstract: The present disclosure provides a display device. The display device comprises a display panel and a grating layer, wherein along a direction pointing from a center of a left-eye field-of-view central area of the display device to a non left-eye field-of-view central area of the display device, a grating period of a left-eye grating region of a first color, a grating period of a left-eye grating region of a second color, and a grating period of a left-eye grating region of a third color all decrease gradually; along a direction pointing from a center of a right-eye field-of-view central area of the display device to a non right-eye field-of-view central area of the display device, a grating period of a right-eye grating region of the first color, a grating period of a right-eye grating region of the second color, and a grating period of a right-eye grating region of the third color all decrease gradually.
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公开(公告)号：US20180217306A1
公开(公告)日：2018-08-02
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
CPC classification number: G02B5/1819 , G02B5/1842 , G02B5/1871 , G02B5/201 , G02F1/1335 , G02F1/133504 , G02F2201/52
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.
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