Patent ID: 9678263
Date: 2017-06-13
CPC Classifications: G02B,G02F,G09G

Claim:
1. An apparatus comprising: a light guide plate; a laser light source; and an optical path regulator located between the laser light source and a light incident surface of the light guide plate, wherein the light guide plate is divided into a plurality of light guide regions, each of the light guide regions corresponding to at least one row of pixel units in a display panel, wherein during a display time of a frame, with modulation of the optical path regulator, a laser emitted from the laser light source performs a progressive scanning for each of the light guide regions in the light guide plate, and wherein a lateral side of the light guide plate has a stepped structure corresponding to the light guide regions in a one-to-one correspondence, and wherein with modulation of the optical path regulator, the laser emitted from the laser light source is guided toward the stepped structure and illuminates a corresponding light guide region after a total reflection at the stepped structure.