The picture is starting to come together for the 6.1" iPhone and 3D Touch. It seems Apple is replacing the 3D Touch module with a cheaper sensor layer which allows them to rely on software for pressure sensitivity. In January, Kuo reported the 6.1" model would be using an out-cell touch display sensor. Out-cell is more expensive to manufacture. This may be due to limitations of using Japan Display's thin-bezel Full Active LCD panels. All current LCD models of iPhone use in-cell touch sensors. To offset this cost, Apple is removing the 3D Touch module. Last week, Kuo predicted the 6.1" display would have a new cheaper, mystery sensor layer in place of 3D Touch. He is now suggesting: Kuo said the 3D Touch module may be removed from 2H18 6.1” LCD iPhone, but pressure sensing function, simulated by software, is likely to be retained. "In our view, pressure sensing (3D Touch) has not been critical to user experience," he said. "Therefore, despite the performance of software simulation lagging that of 3D Touch module, it should still be sufficient to deliver on user experience." If software 3D Touch is accepted by consumers, Apple might try to implement this on the OLED models and iPad.