US 12,334,003 B2
Pixel circuit
Wei-Li Lin, Hsinchu (TW)
Assigned to AUO Corporation, Hsinchu (TW)
Filed by AUO Corporation, Hsinchu (TW)
Filed on Jun. 19, 2024, as Appl. No. 18/748,063.
Claims priority of application No. 112135786 (TW), filed on Sep. 20, 2023.
Prior Publication US 2025/0095553 A1, Mar. 20, 2025
Int. Cl. G09G 3/32 (2016.01)
CPC G09G 3/32 (2013.01) [G09G 2300/0819 (2013.01); G09G 2300/0842 (2013.01); G09G 2310/08 (2013.01); G09G 2320/02 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A pixel circuit, comprising:
a light-emitting element;
a light-emitting driver, coupled to the light-emitting element, and providing a driving current to drive the light-emitting element;
a data input device, coupled to the light-emitting driver, and providing a first data voltage; and
a reader, reading a second data voltage during a read period, and reading the first data voltage and a threshold voltage of a target compensation transistor on a current path of the driving current in the light-emitting driver to a control terminal of the target compensation transistor, so as to perform voltage compensation on the control terminal of the target compensation transistor, wherein during a light-emitting period, the reader performs voltage compensation on the control terminal of the target compensation transistor through the second data voltage, so that the driving current is only related to the first data voltage, wherein a voltage value of the second data voltage is twice of a voltage value of the first data voltage.