Patent ID: 11972728
Assignee: LG DISPLAY CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 4:
5. A light emitting display device comprising:
a display panel including a subpixel;
a driver configured to drive the display panel;
a timing controller configured to control the driver;
an organic light emitting diode disposed in the subpixel and connected with a first power line transmitting a high voltage level;
a first switching transistor configured to write the data voltage;
a second switching transistor configured to initialize the organic light emitting diode,
a capacitor configured to store the data voltage; and
a driving transistor configured to supply driving current for driving the organic light emitting diode,
wherein both ends of the organic light emitting diode are initialized simultaneously with writing the data voltage in the subpixel, and
wherein the capacitor has one end directly connected with a gate electrode of the driving transistor and another end directly connected with a second power line transmitting a low voltage level,
wherein the first switching transistor and the second switching transistor are commonly connected to the one gate line at gate electrodes of the first and second switching transistors, and
wherein the timing controller configured to perform degradation estimation and compensation for the subpixel based on an algorithm included therein without sensing the subpixel.