Array substrate for digital x-ray detector and x-ray detector including the same

An X-ray detector, comprising:

• an array substrate for a digital X-ray detector, the array substrate including:
• a base substrate;
• a thin film transistor over the base substrate;
• a PIN diode including a lower electrode connected to the thin film transistor, a PIN layer over the lower electrode, and an upper electrode over the PIN layer;
• a first bias electrode over the PIN diode;
• and
• a second bias electrode over the first bias electrode;
• and
• a scintillator layer disposed over the array substrate.

An array substrate for a digital X-ray detector, comprising:

• a base substrate;
• a thin film transistor over the base substrate;
• a PIN diode including a lower electrode connected to the thin film transistor, a PIN layer over the lower electrode, and an upper electrode over the PIN layer;
• and
• a dual bias electrode over the PIN diode, the dual bias electrode including transparent and non-transparent conductive materials.