The invention discloses a pixel driving
chip and method and a pixel structure. By means of the pixel driving
chip and method and the pixel structure,
voltage compensation higher in
controllability and better in flexibility is achieved. The pixel driving
chip comprises a control module, an acquisition module, a calculation module, a storage module, a compensation module and an output module, wherein the control module is used for generating and outputting a
voltage drive
signal and controlling a driving
transistor to be in the corresponding test state; the acquisition module is used for acquiring the source
electrode test
voltage of the driving
transistor in the test state; the calculation module is used for calculating a
voltage compensation parameter according to the source
electrode test voltage, wherein the
voltage compensation parameter is the
voltage drop, corresponding to the power source voltage, of the
threshold voltage of the driving
transistor and / or a source
electrode of the driving transistor; the storage module is used for storing the
voltage compensation parameter; the compensation module is used for conducting voltage compensation on a
source data signal by means of the stored voltage compensation parameter, so that a target
data signal is obtained; the output module is used for outputting the target
data signal to a grid electrode of the driving transistor. By means of the pixel driving chip and method and the pixel structure, flexibility and
controllability of voltage compensation are improved.