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公开(公告)号：US11035724B2
公开(公告)日：2021-06-15
申请号：US16590961
申请日：2019-10-02
发明人： Chih-Lung Lin , Fu-Hsing Chen , Chia-Lun Lee , Chia-En Wu , Jian-Shen Yu
摘要： An optical sensing circuit includes a first light sensor, a second light sensor, a third light sensor, a capacitor, and a sampling circuit. The first light sensor, the second light sensor, and the third light sensor are respectively covered by a first color filter, a second color filter, and a third color filter. The first light sensor is coupled to the capacitor, the sampling circuit, and the third light sensor. The second light sensor is coupled to the first light sensor and is configured to receive a first sensing signal. The third light sensor is coupled between the first light sensor and a voltage source.
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公开(公告)号：US11640785B1
公开(公告)日：2023-05-02
申请号：US17841701
申请日：2022-06-16
发明人： Chia-En Wu , Ming-Hsien Lee , Shu-Han Chang , Chun-Shiang Dai
IPC分类号： G09G3/32
摘要： A pixel driving device includes a driving transistor, a pixel driving circuit, an optical sensor circuit, and a reset and reading circuit. Driving transistor controls a light emission device. Pixel driving circuit is connected to the driving transistor and resets according to a first sweep signal. Pixel driving circuit compensates according to a second sweep signal. Pixel driving circuit controls the driving transistor according to a driving signal to drive light emission device. Optical sensor circuit includes a node. Optical sensor circuit resets the node to a voltage level of the driving signal. Light sensing circuit performs sensing to generate a light sensing signal. Reset and reading circuit is connected to the driving transistor, the pixel driving circuit, and the optical sensor circuit. Reset and reading circuit receives a reset and reading signal so as to reset the pixel driving circuit and to read out the light sensing signal.
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公开(公告)号：US20170123556A1
公开(公告)日：2017-05-04
申请号：US15189468
申请日：2016-06-22
发明人： Chih-Lung LIN , Po-Chun Lai , Chia-En Wu , Chien-Chuan Ko , Meng-Chieh Tsai
CPC分类号： G06F3/0416 , G06F3/0412 , G06F3/044 , G09G3/20 , G09G3/3677 , G09G3/3696 , G09G2300/0842 , G09G2310/0267 , G09G2310/0286 , G11C19/28
摘要： A shift register circuit includes a driving unit outputting a first scan signal according to a first clock signal; a pull up unit outputting a driving voltage according to one of a second scan signal and a third scan signal; a pull down unit pulling down voltage of an output end according to a second clock signal; a pull down control unit controlling the voltage of the output end and a driving node according to the first clock signal; a reset unit pulling down the voltage level of the driving node according to a touch-enable signal; and an electric storage unit adjusting the voltage of the driving node according to a touch-stop signal. When the touch-enable signal is enabled, the clock signals and the touch-stop signal are disabled, and when the touch-stop signal is enabled, the clock signals and the touch-enable signal are disabled.
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公开(公告)号：US11170706B1
公开(公告)日：2021-11-09
申请号：US17237794
申请日：2021-04-22
发明人： Chih-Lung Lin , Jie-An Lin , Ming-Yang Deng , Chia-En Wu
IPC分类号： G09G3/32
摘要： A pixel compensation circuit including a light emitting diode, a drive unit, a control unit, a data write-in unit, a reset unit, and a pull-down unit is disclosed. The control unit is configured to control a voltage drop time of the first node according to a data voltage value received by the data write-in unit, so as to control a gray scale of the light emitting diode. The data write-in unit includes a first transistor, a second transistor, a third transistor and a capacitor. The first transistor is connected to a first voltage source and a second node. The second transistor is connected to the second node and a third node. The third transistor is connected to the third node and a data input source. The first capacitor is connected to the second node and a first reference voltage source.
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公开(公告)号：US20200158574A1
公开(公告)日：2020-05-21
申请号：US16594085
申请日：2019-10-07
发明人： Chih-Lung Lin , Chia-En Wu , Chia-Lun Lee , Jui-Hung Chang , Jian-Shen Yu
摘要： An optical sensor circuit is provided. In the optical sensor circuit, an output stage circuit transmits a voltage of first and second node to the output line according to a first driving signal. A first sensor is configured to generate a first photocurrent according to a first color light that senses an ambient light, and generate a second photocurrent according to a second color light. A second sensor is configured to generate a third photocurrent according to a third color light, and generate a fourth photocurrent according to the second color light. In a sensing phase, when the first sensor senses the first color light, and the second sensor senses the third color light, the first sensor adjusts a voltage level of the voltage according to the first photocurrent, and the second sensor adjusts the voltage level of the voltage according to the third photocurrent.
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公开(公告)号：US10175098B2
公开(公告)日：2019-01-08
申请号：US15450583
申请日：2017-03-06
发明人： Chih-Lung Lin , Chia-En Wu , Po-Syun Chen , Fu-Hsing Chen , Ming-Xun Wang , Ching-En Lee , Po-Cheng Lai , Jian-Shen Yu
摘要： An optical sensing circuit has a plurality of optical sensing units arranged so that the optical sensing circuit is ambient light insensitive or sensitive to light within certain spectrum. The sensitive spectra corresponding to the plurality of optical sensing units are different from one another.
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7.发明申请LIQUID CRYSTAL PIXEL CIRCUIT OF LIQUID CRYSTAL DISPLAY PANEL AND DRIVING METHOD THEREOF 有权液晶显示面板的液晶像素电路及其驱动方法公开(公告)号：US20150277177A1
公开(公告)日：2015-10-01
申请号：US14480641
申请日：2014-09-09
发明人： Chih-Lung Lin , Chia-En Wu , Mao-Hsun Cheng , Bo-Shiang Tzeng , Ching-Huan Lin
IPC分类号： G02F1/1362 , G02F1/1368 , G09G3/36
CPC分类号： G09G3/3648 , G09G2310/06 , G09G2320/0252
摘要： A liquid crystal (LC) pixel circuit of a LC display panel includes a first, a second, a third and a fourth switches, a LC capacitor and a storage capacitor. A first and a control terminals of the first switch respectively receive a common voltage and a first gate signal. A first and a control terminals of the second switch respectively receive a data voltage and a second gate signal. The storage capacitor and the LC capacitor electrically connect between second terminals of the first and second switches. A first and a control terminals of the third switch respectively receive the common voltage and a third gate signal. A first and a control terminals of the fourth switch respectively receive a set voltage and a fourth gate signal. Second terminals of the third and the fourth switches respectively connect to the second terminals of the second and the first switches.
摘要翻译： LC显示面板的液晶（LC）像素电路包括第一，第二，第三和第四开关，LC电容器和存储电容器。 第一开关的第一和控制端分别接收公共电压和第一门信号。 第二开关的第一和控制端分别接收数据电压和第二门信号。 存储电容器和LC电容器在第一和第二开关的第二端子之间电连接。 第三开关的第一和控制端子分别接收公共电压和第三栅极信号。 第四开关的第一控制端子和控制端子分别接收设定电压和第四栅极信号。 第三开关和第四开关的第二端子分别连接到第二开关和第二开关的第二端子。
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公开(公告)号：US09958985B2
公开(公告)日：2018-05-01
申请号：US15189468
申请日：2016-06-22
发明人： Chih-Lung Lin , Po-Chun Lai , Chia-En Wu , Chien-Chuan Ko , Meng-Chieh Tsai
CPC分类号： G06F3/0416 , G06F3/0412 , G06F3/044 , G09G3/20 , G09G3/3677 , G09G3/3696 , G09G2300/0842 , G09G2310/0267 , G09G2310/0286 , G11C19/28
摘要： A shift register circuit includes a driving unit outputting a first scan signal according to a first clock signal; a pull up unit outputting a driving voltage according to one of a second scan signal and a third scan signal; a pull down unit pulling down voltage of an output end according to a second clock signal; a pull down control unit controlling the voltage of the output end and a driving node according to the first clock signal; a reset unit pulling down the voltage level of the driving node according to a touch-enable signal; and an electric storage unit adjusting the voltage of the driving node according to a touch-stop signal. When the touch-enable signal is enabled, the clock signals and the touch-stop signal are disabled, and when the touch-stop signal is enabled, the clock signals and the touch-enable signal are disabled.
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公开(公告)号：US09653032B2
公开(公告)日：2017-05-16
申请号：US14480641
申请日：2014-09-09
发明人： Chih-Lung Lin , Chia-En Wu , Mao-Hsun Cheng , Bo-Shiang Tzeng , Ching-Huan Lin
CPC分类号： G09G3/3648 , G09G2310/06 , G09G2320/0252
摘要： A liquid crystal (LC) pixel circuit of a LC display panel includes a first, a second, a third and a fourth switches, a LC capacitor and a storage capacitor. A first and a control terminals of the first switch respectively receive a common voltage and a first gate signal. A first and a control terminals of the second switch respectively receive a data voltage and a second gate signal. The storage capacitor and the LC capacitor electrically connect between second terminals of the first and second switches. A first and a control terminals of the third switch respectively receive the common voltage and a third gate signal. A first and a control terminals of the fourth switch respectively receive a set voltage and a fourth gate signal. Second terminals of the third and the fourth switches respectively connect to the second terminals of the second and the first switches.
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公开(公告)号：US11501696B2
公开(公告)日：2022-11-15
申请号：US17320413
申请日：2021-05-14
发明人： Chia-En Wu , Ming-Hsien Lee , Wei-Chia Chiu , Kuan-Yu Chen , Chia-Yen Lin
IPC分类号： G09G3/32
摘要： A pixel driving device includes a capacitance, a reset circuit, a compensation circuit, a driving transistor and a first transistor. Reset circuit and compensation circuit are coupled to a first end and a second end of capacitance. First transistor is coupled between second end of driving transistor and second end of capacitance. Reset circuit resets first end of capacitance at a power supply voltage and reset second end of capacitance at a reference voltage according to a first sweep signal respectively. Compensation circuit writes a data voltage into first end of capacitance via driving transistor and second end of capacitance is maintained at reference voltage according to a second sweep signal. First transistor generates a driving voltage difference between first end and second end of capacitance according to a control signal. Driving transistor outputs a current to a luminous element according to driving voltage difference.
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