AREA-SAVING DRIVING CIRCUIT FOR DISPLAY PANEL

    公开(公告)号:US20140192095A1

    公开(公告)日:2014-07-10

    申请号:US14146061

    申请日:2014-01-02

    Inventor: MIN-NAN LIAO

    Abstract: The present invention relates to an area-saving driving circuit for a display panel, which comprises a plurality of digital-to-analog converting circuits convert input data, respectively, and produce a pixel signal. A plurality of driving units are coupled to the plurality of digital-to-analog converting circuits, respectively. They produce a driving signal according to the pixel signal and transmit the driving signal to the display panel for displaying. A plurality of voltage booster units are coupled to the plurality of driving units, respectively, and produce a supply voltage according to a control signal. Then the supply voltage is provided to the plurality of driving units. Thereby, by providing the supply voltage to the plurality of driving units of the display panel by means of the plurality of voltage booster units, the area of the external storage capacitor is reduced. Alternative, the external storage capacitor can be even not required.

    TRANSMISSION INTERFACE DEVICE CAPABLE OF CALIBRATING TRANSMISSION FREQUENCY AUTOMATICALLY AND METHOD THEREOF
    162.
    发明申请
    TRANSMISSION INTERFACE DEVICE CAPABLE OF CALIBRATING TRANSMISSION FREQUENCY AUTOMATICALLY AND METHOD THEREOF 有权
    具有自动校准传输频率的传输接口设备及其方法

    公开(公告)号:US20140105321A1

    公开(公告)日:2014-04-17

    申请号:US14036305

    申请日:2013-09-25

    CPC classification number: H04L1/0002 H04L7/0004 H04L7/0016 H04L7/0091

    Abstract: The present invention relates to a transmission interface device capable of calibrating the transmission frequency automatically, which comprises a clock generating unit, a data transmission unit, and a control unit. The clock generating unit is used for generating an operating clock, which determines a transmission frequency. The data transmission unit is used for connecting to a host and transmitting a plurality of data to the host or receiving the plurality of data from the host according to the operating clock. When the host or the data transmission unit detects transmission errors in the plurality of data, the host or the data transmission unit generates an error handling. The control unit generates an adjusting signal according to the error handling and transmits the adjusting signal to the clock generating unit for adjusting the transmission frequency of the operating clock.

    Abstract translation: 本发明涉及一种能够自动校准传输频率的传输接口设备,包括时钟发生单元,数据传输单元和控制单元。 时钟发生单元用于产生确定传输频率的操作时钟。 数据发送单元用于连接主机,并将多个数据发送到主机,或者根据操作时钟从主机接收多个数据。 当主机或数据发送单元检测到多个数据中的传输错误时,主机或数据传输单元产生错误处理。 控制单元根据误差处理生成调整信号,并将该调整信号发送到时钟发生单元,调整工作时钟的发送频率。

    SCAN DRIVING CIRCUIT
    163.
    发明申请
    SCAN DRIVING CIRCUIT 有权
    扫描驱动电路

    公开(公告)号:US20130321363A1

    公开(公告)日:2013-12-05

    申请号:US13664661

    申请日:2012-10-31

    Inventor: Chung-Hsin SU

    Abstract: The present invention relates to a scan driving circuit, which comprises a decoding circuit, a plurality of level-shift driving circuits, and a control circuit. The decoding circuit produces a decoding signal according to a decoding control signal. The plurality of level-shift driving circuits are coupled to the decoding circuit and produce scan signal sequentially according to the decoding signal. The control circuit is coupled to the plurality of level-shift driving circuit. The control circuit produces a first control signal and a second control signal according to the decoding control signal and transmits the first and second control signals to the plurality of level-shift driving circuits for controlling their turning on and off. Accordingly, by means of the control circuit according to the present invention, the circuit area of each level-shift driving circuit can be reduced, and thus the cost can be reduced as well.

    Abstract translation: 扫描驱动电路技术领域本发明涉及一种扫描驱动电路,其包括解码电路,多个电平移位驱动电路和控制电路。 解码电路根据解码控制信号产生解码信号。 多个电平移位驱动电路被耦合到解码电路,并根据解码信号顺序产生扫描信号。 控制电路耦合到多个电平移位驱动电路。 控制电路根据解码控制信号产生第一控制信号和第二控制信号,并将第一和第二控制信号发送到多个电平移位驱动电路,以控制其接通和断开。 因此,通过根据本发明的控制电路,可以减少每个电平移位驱动电路的电路面积,从而也可以降低成本。

    DRIVING CIRCUIT FOR PANEL
    164.
    发明申请
    DRIVING CIRCUIT FOR PANEL 审中-公开
    面板驱动电路

    公开(公告)号:US20130181965A1

    公开(公告)日:2013-07-18

    申请号:US13739346

    申请日:2013-01-11

    Inventor: CHUNG-HSIN SU

    CPC classification number: G09G3/3696 G09G3/3685 G09G2320/0276

    Abstract: The present invention provides a driving circuit for panel, which comprises a gamma voltage generating circuit, a plurality of selecting units, and at least a source driving circuit. The gamma voltage generating circuit generates a plurality of gamma voltages for the plurality of selecting units. The plurality of selecting units outputs the plurality of gamma voltages generated by the gamma voltage generating circuit using the time-division method according to selection data to the source driving circuit. According to display data, the source driving circuit selects to receive the gamma voltage of an output of the plurality of selecting units as a target voltage. In addition, the source driving circuit produces a driving signal according to the target voltage for driving a panel.

    Abstract translation: 本发明提供了一种用于面板的驱动电路,其包括伽马电压发生电路,多个选择单元和至少一个源极驱动电路。 伽马电压产生电路为多个选择单元生成多个伽马电压。 多个选择单元使用根据选择数据的时分方法将由伽马电压产生电路产生的多个伽玛电压输出到源极驱动电路。 根据显示数据,源极驱动电路选择接收多个选择单元的输出的伽马电压作为目标电压。 此外,源极驱动电路根据用于驱动面板的目标电压产生驱动信号。

    DRIVING CIRCUIT AND METHOD FOR TESTING DRIVERS THEREOF

    公开(公告)号:US20240029603A1

    公开(公告)日:2024-01-25

    申请号:US18225880

    申请日:2023-07-25

    Inventor: Chung-Hsin SU

    CPC classification number: G09G3/006 G09G2330/12 G09G3/3208

    Abstract: The present application provides a display driving circuit and a method for testing drivers thereof, which is applied to a control circuit for testing a first and a second driver connected in series. The control circuit transmits an enable signal, a first voltage level, and a second voltage level to the first driver for comparing a first returned voltage level and a second returned voltage level of the first driver with a first preset parameter and a second preset parameter. When the first returned voltage level is not equal to the first preset parameter or the second returned voltage level is not equal to the second preset parameter, the control circuit stops testing. Thereby, by using the voltage levels transmitted between the control circuit and the drivers, built-in self-tests may be performed, which simplifies the self-tests of the display driving circuit and no external testing device is required.

    Driver for display panel
    166.
    发明公开

    公开(公告)号:US20230401995A1

    公开(公告)日:2023-12-14

    申请号:US18091693

    申请日:2022-12-30

    Inventor: Chung-Hsin Su

    CPC classification number: G09G3/32 G09G2300/0452 G09G3/2092

    Abstract: The present application provides a driver for a display panel, the driver comprises at least one driving circuit, generating a plurality of Type-1 driving signals and a plurality of Type-2 driving signals for driving a plurality of pixels on display panel. The pixels include a plurality of first pixels and a plurality of second pixels adjacent to the first pixels. Each pixel includes a first display element, a second display element, a third display element. The Type-1 driving signals drive the first, second, and third display elements of the first pixels. The Type-2 driving signals drive the first, second, and third display elements of the second pixels. A first pulse of the Type-1 driving signals and a second pulse of the Type-2 driving signals are located at different time segments. By adopting the driver according to the present application, current concentration may be avoided and displaying quality may be improved.

    Touch detecting circuit
    167.
    发明授权

    公开(公告)号:US11747932B2

    公开(公告)日:2023-09-05

    申请号:US17137890

    申请日:2020-12-30

    Inventor: Cheng-Chung Yeh

    CPC classification number: G06F3/0416

    Abstract: The present invention relates to a touch detecting circuit, which comprises a touch driving circuit and a touch sensing circuit. The touch driving circuit generates a touch driving signal and provides it to at least one common electrode of a panel. The touch sensing circuit receives a plurality of sensing signals via a plurality of source lines or/and a plurality of gate lines of the panel for detecting the touch location. The sensing signals are generated corresponding to the touch driving signal. In addition, the touch driving circuit may provide the touch driving signal to the source lines. The touch sensing circuit receives the sensing signals via the gate lines for detecting the touch location.

    Source driver and composite level shifter

    公开(公告)号:US11705031B2

    公开(公告)日:2023-07-18

    申请号:US16589381

    申请日:2019-10-01

    Inventor: Sheng-Yu Lin

    Abstract: The invention relates to a source driver and a composite level shifter. The source driver comprises a data buffer circuit, a plurality of level shifters and a plurality of driving circuits. The data buffer circuit receives and registers a plurality of pixel data during a driving period. The level shifters convert the voltage levels of the pixel data registered in the data buffer circuit during the driving period. The driving circuits generate a plurality of source signals according to the converted pixel data during driving period. The data buffer circuit may comprise a plurality of composite level shifters for converting the voltage levels of the pixel data, and latching the converted pixel data.

    TOUCH DETECTING CIRCUIT
    169.
    发明申请

    公开(公告)号:US20220066590A1

    公开(公告)日:2022-03-03

    申请号:US17137890

    申请日:2020-12-30

    Inventor: Cheng-Chung Yeh

    Abstract: The present invention relates to a touch detecting circuit, which comprises a touch driving circuit and a touch sensing circuit. The touch driving circuit generates a touch driving signal and provides it to at least one common electrode of a panel. The touch sensing circuit receives a plurality of sensing signals via a plurality of source lines or/and a plurality of gate lines of the panel for detecting the touch location. The sensing signals are generated corresponding to the touch driving signal. In addition, the touch driving circuit may provide the touch driving signal to the source lines. The touch sensing circuit receives the sensing signals via the gate lines for detecting the touch location.

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