| 摘要 |
A display device having a data voltage generation circuit and a common voltage generation circuit that are both coupled to a common reference voltage is provided. By utilizing a common ground, variations between the data signals relative to the common voltage may be reduced, thereby improving voltage precision and color accuracy. In one embodiment, the data voltage generation circuit may be a gamma adjustment circuit that utilizes a resistor string having a center grounding point. The common voltage generation circuit may share the resistor string and the grounding point with the gamma adjustment circuit. Thus, data voltage signals and common voltage signals may be derived based on the same voltage reference point. Further, by sharing the resistor string, the total number of circuit components in the display device may be reduced, thereby reducing overall chip area and/or manufacturing costs.
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