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公开(公告)号：US20230206813A1
公开(公告)日：2023-06-29
申请号：US17885547
申请日：2022-08-11
发明人： Chun-Wei Kang , Yi-Yang Tsai , Siao-Siang Liu , Shih-Hsuan Huang
IPC分类号： G09G3/20
CPC分类号： G09G3/2007 , G09G3/2096 , G09G2310/0297 , G09G2320/0233
摘要： A display driving integrated circuit (IC) and a driving parameter adjustment method thereof are provided. The display driving IC includes a control circuit and a driving parameter determination circuit. The control circuit controls a current driving circuit and a scanning circuit according to a driving parameter, wherein the current driving circuit is suitable for driving multiple driving lines of a light emitting diode (LED) array, and the scanning circuit is suitable for driving multiple scanning lines of the LED array. The driving parameter determination circuit is coupled to the control circuit to provide the driving parameter. The driving parameter determination circuit dynamically adjusts the driving parameter for a target LED in the LED array according to a grayscale value of the target LED.
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公开(公告)号：US11688327B2
公开(公告)日：2023-06-27
申请号：US17958449
申请日：2022-10-03
发明人： Cheng-Tsu Hsieh
IPC分类号： G09G3/20
CPC分类号： G09G3/2092 , G09G2310/0267 , G09G2310/0275 , G09G2310/0291
摘要： The disclosure provides a source driving circuit adapted to a display panel. The source driving circuit includes a data channel and a control circuit. The data channel is configured to be coupled to a data line of the display panel and drive the data line of the display panel sequentially according to first display data and second display data. The first display data corresponds to a first scan line of the display panel, and the second display data corresponds to a second scan line of the display panel next to the first scan line of the display panel. The control circuit is coupled to the data channel and is configured to control a time point that the data channel outputs the second display data according to similarity between the first display data and the second display data.
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公开(公告)号：US11670262B2
公开(公告)日：2023-06-06
申请号：US17381180
申请日：2021-07-20
发明人： Yuan-Po Cheng , Hung-Ming Wang
CPC分类号： G09G5/397 , G09G3/3648 , G09G2340/12
摘要： A method for generating a plurality of on-screen display (OSD) data is used in a back-end (BE) circuit. The BE circuit is configured to process a plurality of image data to be displayed on a display device. The method includes steps of: receiving the plurality of image data from an application processor (AP); and extracting information of a detecting layer embedded in the plurality of image data, wherein the information of the detecting layer indicates the plurality of OSD data corresponding to at least one user-interface (UI) layer in the plurality of image data.
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公开(公告)号：US11669182B2
公开(公告)日：2023-06-06
申请号：US17674817
申请日：2022-02-17
发明人： Yi-Ying Lin , Chih-Chang Lai
IPC分类号： G06F3/041 , G09G3/3225 , G06F3/044
CPC分类号： G06F3/0412 , G06F3/0443 , G06F3/04166 , G09G3/3225 , G09G2310/0267 , G09G2310/0289 , G09G2310/08 , G09G2354/00 , H10K59/40
摘要： The disclosure provides a method of driving a touch panel which includes a plurality of touch sensing electrodes and a plurality of display pixels. Each of the display pixels includes a light emission element and a driving transistor. Each of the touch sensing electrodes is coupled to the light emission element of at least one of the plurality of display pixels and served as an electrode of the light emission element. The method includes transmitting a first driving signal to at least one of the touch sensing electrodes during a touch sensing period, wherein the touch sensing electrode is coupled to a first power receiving terminal of the corresponding display pixel; transmitting a first power supply voltage to the first power receiving terminal during a display period; and controlling the light emission element of the corresponding display pixel to keep turned on when the first driving signal is transmitted.
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公开(公告)号：US20230168282A1
公开(公告)日：2023-06-01
申请号：US17539170
申请日：2021-11-30
发明人： Tzu-Wei Lin , Hung-Kai Chen , Feng-Lin Chan
CPC分类号： G01R1/30 , H03G3/30 , H03G2201/103
摘要： An analog front-end (AFE) circuit, configured to be coupled to a sensor having a plurality of sensing units, includes a plurality of sensing circuits and a plurality of multiplexers. Each of the plurality of multiplexers is coupled between one of the plurality of sensing units and at least two of the plurality of sensing circuits.
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公开(公告)号：US11631373B1
公开(公告)日：2023-04-18
申请号：US17956820
申请日：2022-09-29
IPC分类号： G09G3/3266 , G09G3/3291
摘要： A method of controlling a display panel includes steps of: detecting a plurality of lines of display data to generate a detection result; determining whether to apply a general timing or a compensation timing to each of the lines of display data according to the detection result; allocating a first display line period for a first line of display data determined to be applied with the general timing; outputting at least one control signal to the display panel in the first display line period according to a length of the first display line period; allocating a second display line period for a second line of display data determined to be applied with the compensation timing; and outputting the at least one control signal to the display panel in the second display line period according to a length of the second display line period different from the first display line period.
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公开(公告)号：US11630540B2
公开(公告)日：2023-04-18
申请号：US17676856
申请日：2022-02-22
发明人： Yen-Cheng Cheng
摘要： The disclosure includes a touch display apparatus having AFE circuit that performs a noise cancellation of an AFE channel by utilizing noise signal received by a neighboring AFE channels. The first AFE channel includes a first integrator having an input terminal coupled to the first terminal receiving a first sensing signal. The second AFE channel includes an input amplifier. The second AFE channel is coupled between the input terminal of the first integrator in the first AFE channel and a second terminal connected to the touch panel. The second AFE channel is configured to generate a reversal input signal based on a second sensing signal received by the second terminal and couple the reversal input signal to a common node between the first integrator and the first terminal.
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公开(公告)号：US11573653B2
公开(公告)日：2023-02-07
申请号：US17493865
申请日：2021-10-05
发明人： Wei-Kang Tsai
IPC分类号： G06F3/041
摘要： The invention provides a touch display apparatus, a driver integrated circuit and a touch display panel. The driver integrated circuit includes a first pad, at least one second pad, a display driving channel, a touch sensing channel, a switching circuit, and a control circuit. The switching circuit is coupled to the display driving channel, the touch sensing channel and the first pad. In a display phase, the switching circuit and the routing circuit are controlled to couple the display driving channel to a data line of the touch display panel via the first pad, and a control signal for controlling the routing circuit is via the at least one second pad. In a touch phase, the switching circuit and the routing circuit are controlled to couple the touch sensing channel to a common electrode of the touch display panel via the first pad.
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公开(公告)号：US20230010835A1
公开(公告)日：2023-01-12
申请号：US17369974
申请日：2021-07-08
发明人： Jen-Yi Lin
IPC分类号： G05F1/56
摘要： An output circuit includes an output driver, a voltage regulator, a control circuit and a charge pump circuit. The output driver includes a signal input terminal, a signal output terminal and a first power receiving terminal. The voltage regulator is coupled to the first power receiving terminal of the output driver. The control circuit is coupled to the signal input terminal of the output driver. The charge pump circuit is coupled to the control circuit and the first power receiving terminal of the output driver.
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公开(公告)号：US11551472B1
公开(公告)日：2023-01-10
申请号：US17749096
申请日：2022-05-19
发明人： Ping Liu , Chi-Ting Chen
摘要： A method of fingerprint recognition for a fingerprint sensing circuit includes steps of: performing a first fingerprint sensing process including a first exposure operation and a first readout operation under a first light spot setting; and performing a second fingerprint sensing process including a second exposure operation and a second readout operation under a second light spot setting. Wherein, a host performs a first fingerprint recognition in response to the first fingerprint sensing process; and wherein, the second light spot setting and the first fingerprint recognition are performed simultaneously.
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