Patent ID: 11863855
Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 18:
19. A terminal device, comprising:
a display unit having a display screen and configured to display images on the display screen;
a light sensing unit located below the display unit and configured to sense incident light transmitted through the display screen; and
a timing control unit connecting to the display unit and the light sensing unit and configured to control a timing sequence in operating the light sensing unit and the display unit,
wherein the light sensing unit comprises a shutter, and the timing control unit is configured to control the shutter to be opened for a predetermined period of time based on a vertical blanking interval (VBI) of a frame of the images displayed by the display unit.