CIRCUIT FOR COMPENSATING SCREEN BRIGHTNESS

摘要

PURPOSE: A circuit for compensating screen brightness is provided to compensate the increase of the grid voltage according to the temperature in order to increase the display quality. CONSTITUTION: A circuit for compensating screen brightness includes a temperature compensation circuit(10). The temperature compensation circuit(10) decrease a collector voltage using increase amount of current according to the temperature of the monitor in order to maintain a voltage of the first grid(G1) at a proper value. The temperature compensation circuit(10) further includes a temperature compensation diode and a temperature compensation resistor(R1) which compensate the voltage increase of the first grid(G1)