In some possible implementation solutions, in the portable electronic device 200, the antenna 1 and the mobile communications module 215 are coupled, and the antenna 2 and the wireless communications module 217 are coupled, so that the portable electronic device 200 can communicate with a network and another device by using a wireless communications technology. The wireless communications technology may include a global system for mobile communications (global system for mobile communications, GSM), a general packet radio service (general packet radio service, GPRS), code division multiple access (code division multiple access, CDMA), wideband code division multiple access (wideband code division multiple access, WCDMA), time-division code division multiple access (time-division code division multiple access, TD-CDMA), long term evolution (long term evolution, LTE), BT, a GNSS, a WLAN, NFC, FM, an IR technology, and/or the like. The GNSS may include a global positioning system (global positioning system, GPS), a global navigation satellite system (global navigation satellite system, GLONASS), a BeiDou navigation satellite system (BeiDou navigation satellite system, BDS), a quasi-zenith satellite system (quasi-zenith satellite system, QZSS), and/or a satellite based augmentation system (satellite based augmentation system, SBAS).
The portable electronic device 200 implements a display function by using the GPU, the display 225, the application processor, and the like. The GPU is a microprocessor for image processing, and is connected to the display 225 and the application processor. The GPU is configured to: perform mathematical and geometric computation, and render an image. The processor 201 may include one or more GPUs that execute program instructions to generate or change display information.