Common voltage loading analog circuit and display device

A display device comprising a common voltage loading analog circuit, wherein the common voltage loading analog circuit is configured for testing compensation capability of an operational amplifier to be tested, the common voltage loading analog circuit comprising:

• a circuit unit to be tested, configured for electrically connecting with a negative input terminal and an output terminal of the operational amplifier to be tested to form a negative feedback compensation circuit;
• a load simulation circuit unit, configured for simulating a coupled common voltage, the load simulation circuit unit comprising a signal generator, an amplifier circuit, and a resistance-capacitor series circuit, wherein the signal generator is electrically connected to an input terminal of the amplifier circuit, an output terminal of the amplifier circuit is electrically connected to an input terminal of the resistance-capacitor series circuit, a first output terminal of the resistance-capacitor series circuit is electrically connected to an input terminal of the circuit unit to be tested, and a second output terminal of the resistance-capacitor series circuit is electrically connected to an output terminal of the circuit unit to be tested;
• and
• an auxiliary circuit unit configured for providing a positive input voltage to a positive input terminal of the operational amplifier to be tested, wherein an output terminal of the auxiliary circuit unit is electrically connected to both the positive input terminal of the operational amplifier to be tested and the input terminal of the circuit unit to be tested.