利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

14 条记录 (耗时 0.018 秒)

    Optical sensing circuit
    1.
    发明授权
    Optical sensing circuit 有权

    公开(公告)号：US11035724B2

    公开(公告)日：2021-06-15

    申请号：US16590961

    申请日：2019-10-02

    申请人： AU Optronics Corporation ,  NATIONAL CHENG KUNG UNIVERSITY

    发明人： Chih-Lung Lin ,  Fu-Hsing Chen ,  Chia-Lun Lee ,  Chia-En Wu ,  Jian-Shen Yu

    IPC分类号： G01J1/46 ,  G01J1/04 ,  G01J1/42

    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.

    Pixel compensation circuit
    2.
    发明授权
    Pixel compensation circuit 有权

    公开(公告)号：US11170706B1

    公开(公告)日：2021-11-09

    申请号：US17237794

    申请日：2021-04-22

    申请人： AU OPTRONICS CORPORATION ,  National Cheng Kung University

    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.

    OPTICAL SENSOR CIRCUIT
    3.
    发明申请
    OPTICAL SENSOR CIRCUIT 审中-公开

    公开(公告)号：US20200158574A1

    公开(公告)日：2020-05-21

    申请号：US16594085

    申请日：2019-10-07

    申请人： Au Optronics Corporation ,  National Cheng-Kung University

    发明人： Chih-Lung Lin ,  Chia-En Wu ,  Chia-Lun Lee ,  Jui-Hung Chang ,  Jian-Shen Yu

    IPC分类号： G01J3/51 ,  G01J3/50

    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.

    OPTICAL SENSOR CIRCUIT
    4.
    发明申请
    OPTICAL SENSOR CIRCUIT 有权

    公开(公告)号：US20220276097A1

    公开(公告)日：2022-09-01

    申请号：US17742384

    申请日：2022-05-11

    申请人： Au Optronics Corporation ,  National Cheng-Kung University

    发明人： Chih-Lung Lin ,  Chia-En Wu ,  Chia-Lun Lee ,  Jui-Hung Chang ,  Jian-Shen Yu

    IPC分类号： G01J3/51 ,  G01J3/50

    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.

    Optical sensor circuit
    5.
    发明授权
    Optical sensor circuit 有权

    公开(公告)号：US11371885B2

    公开(公告)日：2022-06-28

    申请号：US16594085

    申请日：2019-10-07

    申请人： Au Optronics Corporation ,  National Cheng-Kung University

    发明人： Chih-Lung Lin ,  Chia-En Wu ,  Chia-Lun Lee ,  Jui-Hung Chang ,  Jian-Shen Yu

    IPC分类号： G01J3/51 ,  G01J3/50

    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.

    Pixel driving device
    6.
    发明授权
    Pixel driving device 有权

    公开(公告)号：US11640785B1

    公开(公告)日：2023-05-02

    申请号：US17841701

    申请日：2022-06-16

    申请人： AU Optronics Corporation

    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.

    LIQUID CRYSTAL PIXEL CIRCUIT OF LIQUID CRYSTAL DISPLAY PANEL AND DRIVING METHOD THEREOF
    9.
    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

    申请人： Au Optronics Corporation

    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。