公开(公告)号：US20220155819A1

公开(公告)日：2022-05-19

申请号：US17587234

申请日：2022-01-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Peng ZHANG ,  Chenguang LIU ,  Jianliang TIAN ,  Lian WANG

IPC: G06F1/16 ,  G06F3/14 ,  G06F3/0488 ,  G06F21/53

Abstract: This application discloses a trusted user interface display method. The method is applied to an electronic device having a foldable screen, includes: changing the foldable screen from a first display status to a second display status in response to a first operation performed by a user on the electronic device; displaying a user interface UI of a CA on a screen corresponding to the second display status; and triggering to display a trusted user interface TUI corresponding to the CA on the screen corresponding to the second display status in response to a second operation performed by the user on the of the CA, where the TUI is adapted to the screen corresponding to the second display status. In this application, the trusted user interface (TUI) of a TA corresponding to the CA can automatically adapt to a screen change of the foldable screen, thereby improving user experience.

公开(公告)号：US20200234275A1

公开(公告)日：2020-07-23

申请号：US16843630

申请日：2020-04-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Peng ZHANG ,  Chenguang LIU

IPC: G06Q20/32 ,  G06Q20/40 ,  G06Q20/38 ,  G06F21/53 ,  G06F9/451

Abstract: A solution for compatibility between TUI display and Android display is provided. Based on a native control provided by a rich operating system, a customized secure control is further added, thereby simplifying TUI development. Further, the rich operating system performs drawing processing on a native control in a user interface, synchronizes a non-secure surface obtained after processing to a frame buffer of a trusted operating system on a TEE side, and transfers identified information about a secure control in the user interface to the trusted operating system on the TEE side. The trusted operating system processes drawing processing on the secure control based on the information about the secure control and a customization method corresponding to the secure control, composites a secure surface and the non-secure surface that are obtained after processing, and then displays a composited surface by using a display.