Light sensitive circuit, light sensing panel having the light sensitive circuit and display apparatus having the light sensing panel

A light sensing panel comprising:

• a light sensitive circuit comprising a light sensitive capacitor configured to change its charge storing characteristics in response to received light of a predetermined one or more wavelengths, a driving transistor including a gate electrode electrically connected to the light sensitive capacitor and configured to generate a light sensing current according to a voltage of the gate electrode in the driving transistor, and a first switching transistor configured to be driven in response to an (n+1)-th (n is a natural number) gate signal next to an n-th gate signal and to transfer a driving reference voltage which is a reference voltage of the driving transistor to the gate electrode of the driving transistor;
• a plurality of gate lines configured for transferring the n-th gate signal and the (n+1)-th gate signal;
• and
• a plurality of data lines intersecting with the gate lines and configured for transferring data signals,
• wherein the first switching transistor is directly connected to the driving transistor.

A display apparatus comprising:

• a light sensing panel comprising a light sensitive circuit comprising a light sensing capacitor configured to sense light, a driving transistor including a gate electrode electrically connected to the light sensing capacitor and configured to generate a light sensing current according to a voltage of the gate electrode in the driving transistor and a first switching transistor configured to be driven in response to an (n+1)-th (n is a natural number) gate signal next to an n-th gate signal and transfer a driving reference voltage which is a reference voltage of the driving transistor to the gate electrode of the driving transistor, gate lines transferring the n-th gate signal and the (n+1)-th gate signal, and data lines intersecting with the gate lines and transferring data signals;
• a gate driving part configured to output the n-th gate signal and the (n+1)-th gate signal to the gate lines;
• and
• a data driving part configured to output data signals to the data lines,
• wherein the first switching transistor is directly connected to the driving transistor.