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公开(公告)号：US11847280B2
公开(公告)日：2023-12-19
申请号：US15903445
申请日：2018-02-23
发明人： Min-Nan Liao
IPC分类号： G06F3/044 , G06F3/047 , G02F1/1362 , G06F3/041 , G02F1/1333
CPC分类号： G06F3/044 , G02F1/136286 , G06F3/047 , G06F3/0412 , G02F1/13338 , G06F2203/04112 , G09G2300/0426 , G09G2310/0264
摘要： The present invention provides a touch panel and the touch detection circuit thereof, which comprise a gate driving circuit, a source driving circuit, and a detection circuit. The gate driving circuit is coupled to a plurality of gate lines of a display panel, outputs a plurality of gate signals to the plurality of gate lines, and controls state transition of the plurality of gate signals. The source driving circuit is coupled to a plurality of source lines of the display panel. The detection circuit is coupled to the plurality of source lines or to a portion of the plurality of source lines. The detection circuit detects the levels of the plurality of signals on the coupled source lines when the gate signals change states and generates a plurality of detection signals.
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公开(公告)号：US20230400946A1
公开(公告)日：2023-12-14
申请号：US18149684
申请日：2023-01-04
发明人： Chen-Yuan Yang , Hung-Yen Tai , Tzu-Hsuan Liu
IPC分类号： G06F3/041
CPC分类号： G06F3/04182
摘要： The present application provides a touch sensing circuit, which comprises a plurality of analog front-end circuits, a noise processing circuit, and a compensation circuit. The analog front-end circuits generate a plurality of output signals according to a plurality of sensing signals. The noise processing circuit is coupled to the analog front-end circuits and generates an average noise according to the output signals. The compensation circuit is coupled to the noise processing circuit and compensates the output signals according to the average noise. By applying the touch sensing circuit of the present application, the influence of common-mode noise may be suppressed and the sensitivity of sensing touches may be improved.
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公开(公告)号：US11776510B2
公开(公告)日：2023-10-03
申请号：US17023572
申请日：2020-09-17
发明人： Chih Hao Liu
CPC分类号： G09G5/393 , G09G3/3618 , G09G3/3688
摘要： A screen update method for a display device and a driving device thereof, the frame update method includes: following a write-in command, controlling a driving circuit to drive a display panel to update a screen; the write-in command represents writing a display data to a storage element. The driving device includes: the driving circuit, which is coupled to the display panel and drives the display panel to update the screen; and a control circuit, which receives the write-in command and the display data, is coupled to the driving circuit; the control circuit follows the write-in command writing the display data to the storage element, and follows the write-in command to control the driving circuit to drive the display panel to update the screen.
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公开(公告)号：US11693519B2
公开(公告)日：2023-07-04
申请号：US16507264
申请日：2019-07-10
发明人： Chih-Yu Lin
CPC分类号： G06F3/04186 , G06F3/046
摘要： The present invention relates to a proximity sensor and a proximity sensing method. The proximity sensor includes a sensing element and a sensing circuit. The sensing circuit is coupled to the sensing element and transmits a first driving signal and a second signal to the sensing element, respectively. The sensing element receives the first driving signal and the second driving signal, respectively, and generates a first sensing signal and a second sensing signal, respectively. The sensing circuit generates a proximity signal according to the first sensing signal and the second sensing signal. Therefore, the present invention may improve the accuracy of sensing the proximity of the human body whether near to the sensor. In addition, the sensing circuit is further coupled to a radio-frequency circuit, and the sensing circuit transmits a driving signal or/and receives a sensing signal according to the state of the radio-frequency circuit, thereby reducing interference of the sensing circuit to the radio-frequency circuit.
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公开(公告)号：US20220382415A1
公开(公告)日：2022-12-01
申请号：US17804021
申请日：2022-05-25
发明人： CHUN-LIANG CHEN , SHENG-YING LIN
摘要： The present application discloses a capacitive sensing device and a sensing method thereof. A plurality of driving signals corresponding to a plurality of driving codes are outputted to a plurality of driving electrodes, thereby, a plurality of sensing signal are generated on a plurality of sensing electrodes corresponding to the driving electrodes, where the sensing signals are decoded to sensing data by an operation circuit. Hereby, the calculation function of the operation circuit according to the present application may be simplified.
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公开(公告)号：US20220300109A1
公开(公告)日：2022-09-22
申请号：US17655034
申请日：2022-03-16
发明人： TZU-HSUAN LIU , HUNG-YEN TAI , CHEN-YUAN YANG
摘要： The present invention relates to a sensing circuit with signal compensation, which comprises a first sensing element, a second sensing element and a differential amplifying circuit, the differential amplifying circuit generates an output signal through a differential compensation according to a common mode voltage, a first sensing signal and a second sensing signal. Hereby, reducing the noise of the sensing circuit is achieved, and the interference of the display driving signal may be effectively improved.
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公开(公告)号：US20220099967A1
公开(公告)日：2022-03-31
申请号：US17034542
申请日：2020-09-28
发明人： CHUAN-PIN HSIUNG , SHUN WEN CHENG
摘要： The present invention provides an optical imaging structure, which comprises a windshield. The windshield includes a first glass layer and a second glass layer spaced with the first glass layer by a fixed distance. A horizontal curvature of the first glass layer and the second glass layer is greater than 3.5 meters. A vertical curvature of the first glass layer and the second glass layer is greater than the horizontal curvature. When an optical imaging device works with the windshield for imaging, the double-image phenomenon may be reduced.
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公开(公告)号：US11226645B2
公开(公告)日：2022-01-18
申请号：US16876137
申请日：2020-05-18
发明人： Yao-Sheng Hu , Li-Yu Huang
IPC分类号： G05F1/59
摘要： The present invention provides a reference voltage generating circuit. The reference voltage generating circuit includes a charge supply circuit providing a first reference voltage during a first period; and a voltage supply circuit providing a second reference voltage during a second period. The voltage supply circuit does not provide the second reference voltage during the first period.
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公开(公告)号：US20210241712A1
公开(公告)日：2021-08-05
申请号：US17017704
申请日：2020-09-11
发明人： Kai-Yi Wu , Yun-Chu Chen , Li-Yu Huang
IPC分类号： G09G3/36
摘要： A driving circuit for a display panel includes a common voltage generating circuit. The common voltage generating circuit is coupled to multiple common electrodes of the display panel and configured to provide multiple common voltages respectively to the common electrodes. During a frame period, the common voltage generating circuit respectively changes a voltage level of the common voltages at different time.
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公开(公告)号：US10972003B2
公开(公告)日：2021-04-06
申请号：US16454272
申请日：2019-06-27
发明人： Sheng-Ying Lin
摘要： The charge pump is provided, which comprises a power supply circuit and a frequency control circuit. The power supply circuit comprises at least one electric energy storage element, and charges the at least one electric energy storage element for producing a supply voltage. The frequency control circuit is coupled to the at least one electric energy storage element, and outputs an operating signal to the power supply circuit. The frequency control circuit adjusts, an operating frequency of the operating signal in according to the electricity stored in the at least one electric energy storage element for controlling charging of the at least one electric energy storage element to increase the electricity of the at least one electric energy storage element.
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