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公开(公告)号：US11769344B2
公开(公告)日：2023-09-26
申请号：US17804474
申请日：2022-05-27
发明人： Pinchao Gu , Haisheng Wang , Chunwei Wu , Yingming Liu , Rui Xu , Changfeng Li , Lijun Zhao , Yanan Jia , Yuzhen Guo , Yunke Qin
IPC分类号： G06V10/147 , H01L27/32 , G06V10/145 , G06V40/13 , H10K59/65 , G06V40/16
CPC分类号： G06V40/1318 , H10K59/65 , G06V40/16
摘要： A device for identifying a pattern over a first surface includes a photosensitive layer, and a light-guiding layer disposed between the photosensitive layer and the first surface. The photosensitive layer includes a plurality of photosensitive elements, each configured to convert incident light into an electrical signal. The light-guiding layer includes a plurality of light-guiding units, each positionally corresponding to one of the plurality of photosensitive elements. Each light-guiding unit include a plurality of light-transmitting portions, each configured to guide a light beam reflected from a feature of the pattern positionally corresponding thereto to transmit therethrough and reach one of the plurality of photosensitive elements corresponding to the each of the plurality of light-guiding units. The device can be used for identification of fingerprint, as well as other biometric or non-biometric features, and has a reduced thickness and an improved accuracy for pattern identification.
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公开(公告)号：US11646323B2
公开(公告)日：2023-05-09
申请号：US16910632
申请日：2020-06-24
发明人： Min Wang , Rui Xu , Shaobo Li , Guangquan Wang , Chao Tian , Zhe Wang , Meng Gong , Yongchun Lu
CPC分类号： H01L27/124 , G02F1/136
摘要： An array substrate, a display panel and a display device are provided by the present disclosure. The array substrate includes a plurality of pixel structures in a display area of the array substrate and arranged in rows and columns, a plurality of first driving signal wires extending in a row direction; and a plurality of leads extending in a row direction, the plurality of leads including a plurality of first-type leads and at least one second-type lead. A respective first driving signal wire is electrically connected to a row of the pixel structures and is electrically connected to a respective first-type lead via a first electrical connection point. The at least one second-type lead is electrically connected to a respective first driving signal wire via a second electrical connection point and is connected in parallel with a corresponding first-type lead electrically connected to the respective first driving signal wire.
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公开(公告)号：US11482051B2
公开(公告)日：2022-10-25
申请号：US16343762
申请日：2018-09-03
发明人： Changfeng Li , Xue Dong , Haisheng Wang , Yingming Liu , Xiaoliang Ding , Rui Xu , Lei Wang , Yunke Qin
摘要： A display panel includes a substrate, an organic light-emitting layer disposed over the substrate and having at least one pixel, and at least one optical sensor disposed over the substrate distal from the organic light-emitting layer; wherein the at least one pixel is configured to display an image and as a light source for the at least one optical sensor to realize pattern identification.
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公开(公告)号：US11189194B2
公开(公告)日：2021-11-30
申请号：US16080618
申请日：2018-02-02
发明人： Changfeng Li , Haisheng Wang , Yingming Liu , Xiaoliang Ding , Rui Xu , Pengpeng Wang , Wei Liu , Yuzhen Guo , Pengcheng Lu , Yanan Jia , Pinchao Gu
摘要： The embodiments of the present disclosure provide a display panel, a display device, and a method for displaying Braille information. The display panel includes a plurality of scan lines, data lines, and display circuits arranged at intersections of the plurality of scan lines and the plurality of data lines. The display circuit includes a switch configured to be turned on or off according to a scan signal from the scan line, and a dot element coupled to the switch. The dot element includes a substrate, an electrode provided on the substrate, a thermosensitive layer provided on the electrode, and a dot key arranged on the thermosensitive layer. The electrode is coupled to the switch, and configured to be applied with a data signal from the data line when the switch is turned on. The thermosensitive layer is configured to be heated by the electrode to protrude the dot.
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公开(公告)号：US20210334497A1
公开(公告)日：2021-10-28
申请号：US16331364
申请日：2018-07-27
发明人： Lei Wang , Haisheng Wang , Yingming Liu , Changfeng Li , Rui Xu
摘要： The present disclosure generally relates to the field of display technology, and in particular to a fingerprint recognition device and a display device having the fingerprint recognition device. A fingerprint recognition device includes a substrate; a plurality of point light sources on the substrate, which are configured to emit light; a plurality of light sensors on the substrate, which are configured to generate an electrical signal based on the light emitted from the plurality of point light sources and reflected from a touch surface, and a display layer on the plurality of light sensors.
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公开(公告)号：US20210327353A1
公开(公告)日：2021-10-21
申请号：US16346358
申请日：2018-10-17
发明人： Wei Liu , Xue Dong , Haisheng Wang , Xiaoliang Ding , Yingming Liu , ChihJen Cheng , Xueyou Cao , Yanling Han , Changfeng Li , Pengpeng Wang , Ping Zhang , Rui Xu
IPC分类号： G09G3/3258
摘要： An electrical signal detection module includes a photoelectrical signal application circuitry, an operational amplifier, a gain control circuitry and a master control circuitry. The gain control circuitry includes at least two gain control sub-circuitries connected in parallel to each other, and a discharge switching sub-circuitry connected in parallel to the gain control sub-circuitries. Each gain control sub-circuitry includes a gain switching sub-circuitry and a gain capacitive sub-circuitry connected in series to each other. The master control circuitry is configured to apply a discharge switching signal to the discharge switching sub-circuitry, and apply a gain switching control signal to the corresponding gain switching sub-circuitry. The gain switching sub-circuitry is configured to control a first end and a second end of the gain switching sub-circuitry to be electrically connected to each other in accordance with the gain switching control signal. The discharge switching sub-circuitry is configured to enable a first end of the gain capacitive sub-circuitry connected to the gain switching sub-circuitry to be electrically connected to, or electrically disconnected from, a second end of the gain capacitive sub-circuitry in accordance with the discharge switching signal.
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公开(公告)号：US11127334B2
公开(公告)日：2021-09-21
申请号：US16831910
申请日：2020-03-27
发明人： Rui Xu , Chao Tian , Min Wang , Zhe Wang , Shuo Li , Xiang Yuan , Qingqing Ma , Yinan Gao , Guojie Qin
摘要： A display device and a display method of the same are provided. The display device includes: a color electrophoretic display pixel layer and a liquid crystal layer; the color electrophoretic display pixel layer includes electrophoretic display pixel units arranged in an array, each of the electrophoretic display pixel units includes three pixel sub-units, and each of the electrophoretic display pixel units is configured to display a color by mixing colors of the three pixel sub-units; the liquid crystal layer is disposed on a light-emitting surface of the color electrophoretic display pixel layer, and a luminous flux of light emitted from the color electrophoretic display pixel layer is changed by controlling a deflection angle of a liquid crystal in the liquid crystal layer.
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公开(公告)号：US11081067B2
公开(公告)日：2021-08-03
申请号：US16660869
申请日：2019-10-23
IPC分类号： G09G3/34 , G09G3/00 , G02F1/16766 , G02F1/167
摘要： A display substrate of an electronic ink screen and a display device thereof are disclosed. The display substrate of the electronic ink screen includes: a base substrate having a display region and a non-display region; a display structure disposed in the display region of the base substrate; and a photoelectric conversion device disposed in the non-display region of the base substrate, wherein the photoelectric conversion device is connected to a driving circuit of the electronic ink screen and is configured to convert an optical signal of ambient light of the electronic ink screen to an electrical signal so as to supply power to the driving circuit.
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公开(公告)号：US10929633B2
公开(公告)日：2021-02-23
申请号：US15751848
申请日：2017-07-17
发明人： Shengji Yang , Xue Dong , Hailin Xue , Xiaochuan Chen , Haisheng Wang , Yingming Liu , Lei Wang , Xiaoliang Ding , Rui Xu , Pengcheng Lu
摘要： Embodiments of the disclosure relate to a fingerprint identification device, a touch display panel, and a method for driving a fingerprint identification device. The fingerprint identification device for identification of a fingerprint of a finger, includes: at least one resonant chamber; and at least one ultrasonic generating and detecting device provided opposite to the at least one resonant chamber; each of the at least one ultrasonic generating and detecting device is configured to generate initial ultrasonic signals having a frequency which is identical to an initial intrinsic frequency of the resonant chamber in a condition of being untouched by the finger, and each of the at least one ultrasonic generating and detecting device is also configured to convert the ultrasonic signals reflected by ridges and valleys of the finger into electrical signals, and to determine information on pattern of the finger depending on the electrical signals.
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公开(公告)号：US10914642B2
公开(公告)日：2021-02-09
申请号：US15999745
申请日：2018-01-02
发明人： Lijun Zhao , Haisheng Wang , Yingming Liu , Rui Xu , Changfeng Li , Yanan Jia , Pengpeng Wang , Chih Jen Cheng
摘要： The embodiments of the present disclosure relate to a device for temperature detection, including a delay unit including an odd number of inverters coupled end to end, a switching transistor having a control electrode coupled to an output end of the delay unit, a first electrode coupled to an operating voltage node of the device, and a second electrode coupled to an input end of the delay unit, a first capacitor having a first end coupled to the input end of the delay unit, and a second end coupled to the first electrode of the switching transistor or a ground node of the device, and a temperature sensitive transistor having a control electrode coupled to a bias voltage end of the device, a first electrode coupled to the input end of the delay unit, and a second electrode coupled to the ground node of the device.
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