A data voltage compensation method, a display driving method, and a display apparatus

A method for driving a display apparatus, the display apparatus including multiple pixel circuits, each of the multiple pixel circuits including a driving transistor, an organic light-emitting diode (OLED), and a sense line coupled to the driving transistor and the OLED, the method comprising:

• applying a testing voltage individually to a gate of a driving transistor in a pixel circuit of the multiple pixel circuits, the testing voltage being a sum of a threshold voltage of the driving transistor and a first setting voltage;
• charging the sense line coupled to the driving transistor by charges induced by the testing voltage;
• and
• converting the charges accumulated over a first time period to obtain a first monitoring voltage associated with the sense line, wherein the first monitoring voltage and the testing voltage are used to deduce one or more compensation parameters individually associated with the pixel circuit and used to compensate a data voltage to be applied to the pixel circuit for controlling the OLED thereof to emit light for displaying a subpixel image.

A data voltage compensation apparatus of a display apparatus, the display apparatus including multiple pixel circuits, each of the multiple pixel circuits including a driving transistor, an organic light-emitting diode (OLED), and a sense line coupled to the driving transistor and the OLED, the compensation apparatus comprising one compensator circuit coupled to each of the multiple pixel circuits, wherein the compensator circuit is configured to

• obtain a threshold voltage individually associated with the driving transistor in one of the multiple pixel circuits;
• apply a testing voltage to a gate of the driving transistor for charging the sense line up to a first time period to determine a first monitoring voltage associated with the sense line, wherein the testing voltage is set to be a sum of the threshold voltage and a first setting voltage;
• and
• compensate a data voltage to be applied to the pixel circuit based on the first monitoring voltage and the threshold voltage.