Patent ID: 11860400
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G | IPC F

Claim 8:
9. A display device, comprising: a backlight component, wherein the backlight component comprising:
a light guide plate;
a light emitting device on a surface of a side of the light guide plate in a thickness direction, wherein the light emitting device is configured to emit light irradiated into the light guide plate; and
an optical element on another side of the light emitting device, wherein the optical element is configured to: convert the light emitted from the light emitting device into a parallel beam propagating in the light guide plate by total reflection,
wherein, the display device further comprising a grating layer and a light conversion layer that are sequentially stacked in a direction away from the backlight component,
the light conversion layer in each of the sub-pixels of the display device comprises a first region and a second region, and the beam provided by the backlight component for any of the sub-pixels is directed to the first region of the sub-pixel; and
the grating layer comprises a deflection grating in each of the sub-pixels, and each of the deflection gratings is configured to deflect the collimated beam to be directed to the second region of the sub-pixel that the collimated beam is located;
wherein the first region and the second region are respectively one of a light blocking region and a light transmissive region.