Apple adopts LTPO TFT to extend battery life time to Apple Watch Series 4
Reporter & Analyst : Daejeong Yoon
Apple released its Apple Watch Series 4 with enhanced healthcare features on a larger screen than before, in the Steve Jobs Theater at Apple Park in California, USA on September 12.
<Apple Watch Series 4, Source: Apple.com>
In this announcement, Apple brought Apple watch series 4 with a new technology called LTPO to improve power efficiency.
LTPO stands for low temperature polycrystalline oxide. It is a kind of TFT using only the advantages of poly-Si with good charge mobility and IGZO with low power driving. LTPO TFTs have low leakage current and good on / off characteristics, which lowers power consumption and increases battery life.
<Apple’s LTPO TFT patent>