In 2022, 120Hz OLED high brush screen has been the standard configuration of medium and high-end mobile phones. However, high score and high brush also bring high power consumption, making endurance and charging more anxious. For this reason, OLED screens generally adopt the low-frequency scheme, which can automatically reduce the salary and refresh rate according to the scene. Most of them adopt ltpo technology, but it needs to add mask mask and process scheme, which will increase the cost.
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Tianma announced today that it has innovated and developed a new generation of low-frequency OLED scheme, which uses a new pixel structure and driving mode to reduce the number of masks, lower ioff value and power consumption. It is expected to be mass produced and put into the market in the third quarter
Ioff value is the leakage current value of TFT device. The smaller the leakage current is, the more stable the voltage is and the more stable the optical performance is
Tianma showed a 6.72 inch sample, adaptive frequency conversion supports four gear dynamic refresh rate within 30-120hz , high brush during game, and smoothly switch to low brush power-saving mode when looking at pictures and reading.
According to Tianma, in the low brush, low gray scale and low brightness scenarios, the screen still maintains a fine and smooth visual effect without flicker, and the power consumption is significantly reduced by 20-50%**
