HP INCFollow


This invention discloses a new structure and approach to detect and compensate OLED nonuniformity

issue, including image sticking. On the TFT backplane, there are driving TFT and sensing

TFT. During OLED light on, while most light goes to top direction to the user, a small amount of light

goes to sensing TFT and be detected. There by comparing the level of the response of each sensing

TFT, system is able to know the luminous difference of each pixel. And then, adjust the appropriate

driving voltage to make the luminous closer. This will minimize the image sticking.

Creative Commons License

Creative Commons License
This work is licensed under a Creative Commons Attribution-Share Alike 4.0 License.