Patent ID: 11947203
Assignee: LG DISPLAY CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 14:
15. The display device of claim 13, further comprising:
a first backlight disposed on the bottom cover;
a viewing angle control assembly disposed on the first backlight, the viewing angle control assembly including alternating light blocking areas and light transmissive areas; and
a second backlight disposed on the first guide frame,
wherein in a security mode, the light transmissive areas are configured to transmit light output by the first backlight to the display panel and the light blocking areas are configured to perform at least one of blocking or absorbing the light output by the first backlight to limit a viewing angle of an image displayed on the display panel, and
wherein in a sharing mode, the second backlight is operable to output additional light to the display panel to widen the viewing angle of the image displayed on the display panel relative to the security mode.