Patent ID: 11953785
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A display panel, comprising:
a first substrate, configured to receive linearly polarized light emitted by a light-emitting module on one side of the first substrate;
a second substrate;
a liquid crystal layer, arranged between the first substrate and the second substrate; and
an electrode group, configured to control a refractive index of the liquid crystal layer when loaded with a voltage, so as to propagate light emitted by the light-emitting module in the first substrate by total reflection when the refractive index of the liquid crystal layer is smaller than that of the first substrate, and propagate the light emitted by the light-emitting module towards the second substrate from the first substrate when the refractive index of the liquid crystal layer is greater than that of the first substrate; wherein:
the electrode group comprises a first electrode on one side of the first substrate facing the second substrate, and a second electrode on one side of the second substrate facing the first substrate;
when a cell gap of the display panel is smaller than one sixth of a period of the second electrode, the cell gap is a low cell gap, and liquid crystals in the liquid crystal layer show different liquid crystal refractive indexes at different positions;
when the cell gap of the display panel is greater than one fourth of the period of the second electrode, the cell gap is a high cell gap, and light passing through the liquid crystal layer is diffracted in an electrode layer where the second electrode is located; and
the period of the second electrode is a distance between centers of two adjacent second electrodes.