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公开(公告)号：US11847988B2
公开(公告)日：2023-12-19
申请号：US16983262
申请日：2020-08-03
发明人： Hung-Yu Lu , Rong-Fong Chen
IPC分类号： G09G3/36
CPC分类号： G09G3/3607 , G09G3/3655 , G09G3/3677 , G09G3/3685 , G09G3/3614 , G09G2310/027 , G09G2320/0247 , G09G2320/0276 , G09G2320/0673
摘要： The present invention relates to a driving method for flicker suppression of a display panel and a driving circuit thereof. The driving circuit includes a source driving circuit and a common voltage generating circuit. The driving method includes driving the source driving circuit to generate at least one first source signal and at least one second source signal, the first source signal corresponds to at least one first pixel on a first scanning line; the second source signal corresponds to at least one second pixel on a second scanning line. The common voltage generating circuit generates at least one common voltage. While driving the first pixel and the second pixel to display the same gray scale image, the first source signal is not equal to the second source signal, or a first common voltage and a second common voltage generated by the common voltage generating circuit are different.
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公开(公告)号：US20230401996A1
公开(公告)日：2023-12-14
申请号：US18091788
申请日：2022-12-30
发明人： Chung-Hsin Su
IPC分类号： G09G3/32
CPC分类号： G09G3/32 , G09G2330/06 , G09G3/2092
摘要： The present application provides a driving circuit for display panel, which comprises a driving-signal generating circuit generating a driving signal in a frame time for driving a display element of a display panel. The driving signal includes at least one first turn-on pulse width, at least one first turn-off pulse width, at least one second turn-on pulse width, and at least one second turn-off pulse width. The first turn-on pulse width is greater than the second turn-on pulse width. The first turn-off pulse width is smaller than the second turn-off pulse width. By adopting the driving circuit according to the present application, EMI may be reduced and the displaying quality may be improved.
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公开(公告)号：US11693515B2
公开(公告)日：2023-07-04
申请号：US15955019
申请日：2018-04-17
发明人： Wang-An Lin , Chun-Kuan Wu , Chen-Yuan Yang , Tsung-Han Tsai
IPC分类号： G06F3/041
CPC分类号： G06F3/04184 , G06F3/041
摘要： The present invention provides a touch module, which comprises a touch panel, an analog front end circuit, and a microcontroller circuit. The touch panel generates a plurality of sensing signals. The analog front end circuit is coupled to the touch panel, generates a state signal, and generates a plurality of touch detecting signals according to the plurality of sensing signals. The microcontroller circuit is coupled to the analog front end circuit, generates one or more touch location signal according to the plurality of touch detecting signals, and enters the next switching state according to the state signal when the switching state is changed.
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公开(公告)号：US11538414B2
公开(公告)日：2022-12-27
申请号：US16824669
申请日：2020-03-19
发明人： Chih-Te Hung , I-Chen Lin , Chun-Chi Yeh , Chia-Hung Chien
IPC分类号： G09G3/3258 , G09G3/3266 , G09G3/3275
摘要： A driving circuit of a display panel comprises a scanning driving circuit, a data driving circuit, and a control circuit. The scanning driving circuit is coupled to a plurality of scanning lines of the display panel, and scans the scanning lines. The data driving circuit is coupled to a plurality of data lines of the display panel and provides at least one data signal corresponding to each scanning line to at least one data line of the data lines for driving at least one pixel of the display panel. The control circuit is coupled to the scanning driving circuit and the data driving circuit, controls the scanning driving circuit and the data driving circuit, and determines a scanning order of the scanning driving circuit to scan the scanning lines according to a driving number of the pixels to be driven by the data driving circuit corresponding to each scanning line.
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公开(公告)号：US20220375398A1
公开(公告)日：2022-11-24
申请号：US17563438
申请日：2021-12-28
发明人： MIN-NAN LIAO
IPC分类号： G09G3/32
摘要： The present application discloses a driving structure for display panel, which comprises at least one driving group and at least one control circuit. The driving group is disposed on a display panel. Each of the driving group includes a plurality of drivers. The drivers are coupled to each other in serial. Each of the drivers is coupled to at least one display component of the display panel. The control circuit is disposed on the display panel, coupled to the driving group, and controls the driving group. The driving structure according to the present application is applied to the display panel, that requires no scan lines disposed on the display panel for reducing the complex of the structure of the display panel.
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公开(公告)号：US11462189B2
公开(公告)日：2022-10-04
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：US11189242B2
公开(公告)日：2021-11-30
申请号：US15922006
申请日：2018-03-15
发明人： Min-Nan Liao , Chih-Ping Su
IPC分类号： G09G3/36
摘要： The present invention relates to a driving circuit of a display panel. A plurality of driving units produce a reference driving voltage according to a gamma voltage of a gamma circuit, respectively. A plurality of digital-to-analog converting circuits receive the reference driving voltages output by the plurality of driving units, and select one of the plurality of reference driving voltage as a data driving voltage according to pixel data, respectively. The plurality of digital-to-analog converting circuits transmit the plurality of data driving voltages to the display panel for displaying images. A voltage boost circuit is used for producing a first supply voltage and providing the first supply voltage to the plurality of digital-to-analog converting circuits. At least a voltage boost unit is used for producing a second supply voltage and providing the second supply voltage to the plurality of driving units.
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公开(公告)号：US11169415B2
公开(公告)日：2021-11-09
申请号：US16452867
申请日：2019-06-26
发明人： Chuan-Pin Hsiung , Shun Wen Cheng
IPC分类号： G02F1/13357 , H05K7/20
摘要： The invention is related to a back-light device. The back-light device comprises a reflection structure and a back-light plate. A plurality of light-emitting elements, disposed on the back-light plate, face a light-entering side of the reflection structure, and the emitted light of the light-emitting elements enters the light-entering side of the reflection structure and is reflected to a light-emitting side of the reflection structure by the reflection of the reflection structure for forming a back-light source emitted to a display panel.
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公开(公告)号：US20210263366A1
公开(公告)日：2021-08-26
申请号：US17017707
申请日：2020-09-11
发明人： Kai-Yi Wu , Yun-Chu Chen , Li-Yu Huang
IPC分类号： G02F1/1345 , G09G3/36 , G02F1/1362
摘要： A display panel driving chip includes a plurality of gate signal output ports and a plurality of source signal output ports. The source signal output ports outputting a plurality of source signals and the gate signal output ports outputting a plurality of gate signals are interleaved.
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公开(公告)号：US11073858B2
公开(公告)日：2021-07-27
申请号：US15256639
申请日：2016-09-05
发明人： Chia-Chi Cheng
IPC分类号： G05F1/66
摘要： A power supply system for a circuit device includes a power supply unit, a switch unit and a voltage detector. The power supply unit, coupled to the circuit device via a power line, is used for supplying basic power for the circuit device via the power line, wherein the power line is coupled to the circuit device via a plurality of nodes. The switch unit, near to a node among the plurality of nodes, is coupled to the circuit device via the power line. The voltage detector, coupled to the circuit device and the switch unit, is used for detecting a voltage of the node and controlling the switch unit to be closed to allow the circuit device to receive auxiliary power via the switch unit when detecting that the voltage of the node is lower than a first threshold value.
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