Stability | Control technology solves TFT ageing and improves overall power consumption in oxide, poly-Si and a-Si displays.
The threshold voltage in a-Si TFTs can shift from 2-3 volts to over 15 volts. IGNIS Stability | Control actually reduces the threshold voltage shift to under 1 volt, in both oxide and a-Si TFTs. This remaining shift can be managed using our
Intelligent | Pixel technology.
Stability | Control uses three methods to reduce the threshold voltage shift:
Relaxation: By relaxing the TFT during each video frame, the threshold voltage shift is reduced by more than three times.
Recovery: By using a special bias condition while the display is off, the threshold voltage shift is reversed.
Process Tuning (a-Si only): Minor optimizations to the a-Si TFT process (without adding any extra steps, or additional processing time) reduce the threshold voltage shift significantly. The tuning is compatible with any a-Si process, but is not necessary for oxide TFTs.