| 摘要 |
Provided are a data driving circuit and driving method thereof, data driving system, and display device. In an embodiment of the data driving circuit (100, 200), each of digital-to-analog conversion units (21-23) is configured to drive a subpixel of one color, and by controlling switch units (31-39) to turn on and off, respective digital line interface units (11-13) connect to different digital-to-analog conversion units (21-23) when driving subpixels of different colors. Therefore, reference voltages can be provided by independent physical gamma circuits (620_1 to 620_N) to the digital-to-analog conversion units (21-23) driving display of different colors without a digital gamma circuit, thereby preventing a gray scale loss caused by using the digital gamma circuit to perform modulation. |
