公开(公告)号：US20130321363A1

公开(公告)日：2013-12-05

申请号：US13664661

申请日：2012-10-31

Applicant: SITRONIX TECHNOLOGY CORP.

Inventor： Chung-Hsin SU

IPC: G09G5/00

CPC classification number: G09G3/00 ,  G09G3/20 ,  G09G3/3674 ,  G09G2300/0426 ,  G09G2310/0286 ,  G09G2310/0289

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。

公开(公告)号：US20240029603A1

公开(公告)日：2024-01-25

申请号：US18225880

申请日：2023-07-25

Applicant: SITRONIX TECHNOLOGY CORP.

Inventor： Chung-Hsin SU

IPC: G09G3/00

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.