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公开(公告)号：US10706759B2
公开(公告)日：2020-07-07
申请号：US16096607
申请日：2018-05-15
发明人： Yaran Wang , Wei Zhang , Jigang Sun , Wei Sun
IPC分类号： G09G3/20
摘要： A current comparison circuit for use in a display device. The display device is configured to be supplied with a plurality of power supply voltages for powering a digital portion and an analog portion of the display device through respective power supplying paths. The current comparison circuit includes a plurality of comparator circuits, each of which is configured to compare a current on a respective one of the power supplying paths with a respective reference value and to output the respective comparison value. A combination of the respective comparison values output by the comparator circuits indicates a type of content being displayed by the display device.
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2.发明授权公开(公告)号：US11112912B2
公开(公告)日：2021-09-07
申请号：US16062953
申请日：2017-09-29
发明人： Jigang Sun , Wei Sun , Pengjun Chen
摘要： The calibration device is used for automatically calibrating capacitances of a sensing capacitor at various frequency points in the touch screen, and comprising a calibration circuit and a comparison circuit. The calibration circuit is connected with the sensing capacitor and the comparison circuit to transmit a calibration excitation signal to the touch screen to start calibration operations at the various frequency points, and calibrate the sensing capacitor in the touch screen according to a comparison result from the comparison circuit; the comparison circuit is used for comparing a preset capacitance with the capacitance of the sensing capacitor at a current frequency point in the touch screen to obtain the comparison result, and feeding the comparison result back to the calibration circuit, and the calibration circuit calibrates the capacitance of the sensing capacitor to a capacitance that matches with the current frequency point.
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公开(公告)号：US10714045B2
公开(公告)日：2020-07-14
申请号：US15292361
申请日：2016-10-13
发明人： Jigang Sun , Pengjun Chen , Hao Zhang
IPC分类号： G09G3/36
摘要： A control device is disclosed, the control device configured to control a display module and comprising a judgment module and a storage module, wherein the judgment module is configured to receive a reference voltage and to receive a supply voltage of the display module, and is configured to judge whether the display module is supplied with power or not according to the reference voltage and the supply voltage; and the storage module is connected with the judgment module and is connected with a display screen of the display module, the storage module is configured to store a preset image, and where the display module is supplied with power, the storage module transmits the preset image to the display screen so that the display screen displays the preset image. A control method and a display device are also disclosed.
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公开(公告)号：US10453422B2
公开(公告)日：2019-10-22
申请号：US15562212
申请日：2017-03-29
发明人： Jigang Sun , Pengjun Chen , Wei Sun
IPC分类号： G06F13/14 , G09G5/00 , G06F9/44 , G09G5/393 , G06F9/4401 , G09G3/36 , G09G5/36 , G06F9/451 , G09G3/00
摘要： An electronic apparatus including a display panel integrated circuit, an erasable nonvolatile storage and a processor is provided. The erasable nonvolatile storage is configured to store a display panel integrated circuit driving program, and the processor is configured to drive the display panel integrated circuit based on the display panel integrated circuit driving program stored in the erasable nonvolatile storage. The electronic apparatus improves the research and development efficiency and reduces the waste of integrated circuits by using an erasable nonvolatile storage to store a display panel integrated circuit driving program. A driving method for an electronic apparatus is further provided.
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公开(公告)号：US11209934B2
公开(公告)日：2021-12-28
申请号：US16472010
申请日：2018-11-23
发明人： Shaolei Zong , Jieqiong Wang , Jigang Sun , Yanfei Ren
摘要： The present disclosure provides a voltage driving method and device for a touch display panel, and a touch display panel, which includes a common electrode extending in a first direction and a plurality of columns of touch electrodes extending parallel to each other in a second direction. The voltage driving method includes: applying a first scanning voltage to two outermost columns of touch electrodes during a first period of a first touch cycle including a plurality of periods, the first scanning voltage being equal to a reference voltage; detecting a first output voltage output by the two outermost columns of touch electrodes during the first period; and adjusting, based on the detected first output voltage, the scanning voltage applied to the two outermost columns of touch electrodes during a first period of a second touch cycle immediately after the first touch cycle, to a second scanning voltage.
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6.发明授权公开(公告)号：US11099690B2
公开(公告)日：2021-08-24
申请号：US16079132
申请日：2018-02-01
发明人： Xueying Wang , Jigang Sun , Wanhua Yang , Yue Lang
IPC分类号： G06F3/044
摘要： The present disclosure provides a capacitance compensation module, a capacitance compensation method, a self-capacitive touch display panel and a self-capacitive touch display device. The capacitance compensation module includes: a detection circuitry configured to detect an initial capacitance of a capacitor formed between each of the plurality of touch electrodes and the ground when the touch electrode is not being touched; a determination circuitry connected to the detection circuitry, and configured to determine whether the touch electrode is an abnormal touch electrode in accordance with the initial capacitance and output a compensation control signal when the touch electrode is the abnormal touch electrode; and a compensation circuitry connected to the determination circuitry and configured to, upon the receipt of the compensation control signal, apply a compensation voltage to the abnormal touch electrode, so as to enable the initial capacitance of the capacitor formed between the abnormal touch electrode and the ground to be within a standard capacitance range. According to at least one of embodiments of the present disclosure, it is able to at least partially prevent the occurrence of a capacitance warpage at a periphery of the self-capacitive touch display panel.
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7.发明授权公开(公告)号：US10901550B2
公开(公告)日：2021-01-26
申请号：US16123654
申请日：2018-09-06
发明人： Shaolei Zong , Jieqiong Wang , Jigang Sun
IPC分类号： G06F3/041
摘要： A display touch scanning method, a non-volatile storage medium, a display touch scanning chip and a display apparatus are disclosed. The display touch scanning method including: dividing one frame of display scan into M display time periods to be sequentially executed, and dividing one frame of touch scan into N touch time periods to be sequentially executed; and performing the touch scan using different touch loads in at least two adjacent touch time periods, or performing the display scan using different display loads in at least two adjacent display time periods. The M display time periods and the N touch time periods are interlaced, and M and N are integers greater than or equal to 2.
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公开(公告)号：US11776443B2
公开(公告)日：2023-10-03
申请号：US17052251
申请日：2020-04-08
发明人： Jing Zhao , Xu Su , Shuang Zhao , Jigang Sun
IPC分类号： G09G3/20
CPC分类号： G09G3/20 , G09G2300/0408 , G09G2310/0267 , G09G2310/08 , G09G2330/021
摘要： There is provided a gate driving circuit including cascaded Gate Driver On Array (GOA) units, each GOA unit drives a row of pixels and includes a starting sub-unit, an output sub-unit and an output terminal, in the GOA unit at a first stage, the starting sub-unit is coupled with a starting signal, a first control signal, a second control signal and a constant voltage potential, and the output sub-unit is coupled with a first clock signal and a first power supply signal; in the GOA unit at an nth stage, the starting sub-unit is coupled with the starting signal, the first control signal, the second control signal and the output terminal of the GOA unit at an (n−1)th stage, the output sub-unit is coupled with the first power supply signal and the output terminal of the GOA unit at an (n+1)th stage, n is an integer greater than 1.
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公开(公告)号：US11157227B2
公开(公告)日：2021-10-26
申请号：US16641298
申请日：2019-03-18
发明人： Yanfei Ren , Jigang Sun , Wanhua Yang , Weixing Shan , Shaolei Zong
IPC分类号： G06F3/14 , G06F3/041 , G09G3/3225 , G09G3/36
摘要： A switching control device, a control method, and a display device are provided. The switching control device includes: a main control circuit and switch control circuits in one-to-one correspondence with display screens. The main control circuit is configured to output a display control voltage, and output in a time-division manner a display switching instruction in one-to-one correspondence with each of the display screens. For each of the display screens, the display switching instruction includes: a switch control signal, a data signal, a lighting signal, and an extinguishing signal. The main control circuit is configured to output a lighting signal to the corresponding display screens, and to output an extinguishing signal to the corresponding display screens. The switch control circuits are configured to receive a display control voltage and a switch control signal, and supply a display control voltage to the corresponding display screens.
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公开(公告)号：US11778446B2
公开(公告)日：2023-10-03
申请号：US17444826
申请日：2021-08-10
发明人： Shaolei Zong , Wei Sun , Jieqiong Wang , Jigang Sun
CPC分类号： H04W4/90 , G08B6/00 , H04M1/0202 , G06F3/041 , G06F3/044 , G09G2310/0267 , H04M2250/12
摘要： A gate driving unit includes an input terminal, a latch node control circuit, a first node potential maintenance circuit, and a latch node reset circuit, the latch node control circuit is configured to control a voltage of the latch node through a charging voltage inputted by the latch charging terminal under the control of an input signal provided by the input terminal, the first node potential maintenance circuit is configured to control the connection between the first node and the latch enable terminal under the control of a voltage of the latch node, to maintain a potential of the first node; and the latch node reset circuit is configured to control to reset the potential of the latch node under the control of the latch node reset signal inputted by the latch node reset terminal.
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