The screen of the iPhone will consume less battery
I would arrive first at the Apple Watch, and then at the iPhone
Battery life is one of the main problems mobile phones face; especially the iPhone. The company started last year its transition to OLED panels with the iPhone X, which can offer a longer battery life depending on the use. This year, they will launch two OLED phones, and next year they hope to offer all models with these panels. And on top they will be even more efficient.

LTPS vs. LTPO: the new Apple panel design to consume up to 15% less battery

This has been revealed as a result of an IHS Markit report, where they indicate that the company is currently considering an update of the technology they use on their screens, which basically seeks to replace the technology used to turn the pixels on and off (called backplane in English ). LTPS TFT (low-temperature polysilicon thin-film transistors) are currently used, and Apple's new technology would replace them with LTPO (low-temperature polycrystalline oxide). The optimization of this component is vital, since it controls the resolution, consumption, luminosity and refresh rate.

This change would allow Apple to better optimize the energy use of the panels, making the battery last up to 15% longer; a great change without having to change anything else in the mobile hardware. In addition, Apple seeks to depend as little as possible on third parties, although for OLED panels it will have to continue to depend on brands such as Samsung or LG, which are the main manufacturers worldwide.

For this year, Apple will continue to depend on Samsung for its mobile phones, but by 2019 it will try to find other providers, such as LG. For Apple Watch, the company already uses panels from both companies. One of the two is more likely to be the one that Apple asks them to create these new LTPO TFT panels. Other companies such as BOE or JDI manufacture OLED panels, and JDI has been developing LTPO for some time. The problem is getting them to manufacture the millions of units that Apple needs for their phones.

However, with this improvement, the company applies its own technology, which allows them to have greater control over the design process of their panels. At the moment they need to perfect the design, since they have not yet managed to create panels with the same resolution as the current ones that make use of this technology, in addition to their implementation being more complex than in the current ones.

Apple is not the only one that is working on this technology, but they have already applied to have three patents on LTPO, which were issued in 2014, in 2015 and the last one this year. It is expected that the first use of these panels will be in the Apple Watch, and later to incorporate it in the iPhone.

The company has been involved in the development of LCD screens of all its devices to better understand the technology, reduce costs and improve performance. However, in the new era of OLED panels, the company has not been as involved and depends more on what the manufacturer can give it.
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