Semiconductor device including first and second middle-voltage elements, display driving device including the same, and method for manufacturing the semiconductor device

A display device comprising:

• a display panel for displaying an image through at least one pixel connected to a gate line and a data line;
• a display driving device including:
• a timing control circuit configured to output a gate control signal and a data control signal using a signal input from an external system;
• a gate driver circuit configured to output a gate signal to the gate line using the gate control signal;
• and
• a data driver circuit configured to output a source signal to the data line using the data control signal;
• and
• a power supply for supplying power to the display panel and the display driving device,
• wherein the data driver circuit includes:
• a first middle-voltage element disposed in a substrate and configured to receive a first level middle-voltage;
• and
• a second middle-voltage element disposed in the substrate and configured to receive a second level middle-voltage greater than the first level middle-voltage;
• and
• wherein the second middle-voltage element includes:
• a second-first middle-voltage well doped with a first type dopant;
• and
• a second-second middle-voltage well doped with a second type dopant different from the first type dopant.