Patent ID: 11899304
Assignee: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 17:
18. The driving method for the liquid crystal display panel according to claim 17, wherein the second liquid crystal layer is a polymer dispersed bistable nematic liquid crystal layer;
driving the liquid crystal display panel to display the black picture, and applying the first vertical electric field to the second liquid crystal layer through the at least one first control electrode and the at least one second control electrode, so as to drive the optical axes of the second liquid crystal molecules in the second liquid crystal layer to be perpendicular to the first polarizer, includes:
driving the liquid crystal display panel to convert from displaying the non-black picture to displaying the black picture;
applying a second vertical electric field to the second liquid crystal layer through the at least one first control electrode and the at least one second control electrode, so that the second liquid crystal layer is in a second stable state; and
applying the first vertical electric field to the second liquid crystal layer through the first control electrode and the second control electrode, so that the optical axes of the second liquid crystal molecules are perpendicular to the first polarizer; and
driving the liquid crystal display panel to display the non-black picture, and withdrawing the first vertical electric field, so that the orthogonal projections of the optical axes of the second liquid crystal molecules in the second liquid crystal layer on the first polarizer are parallel to the orthogonal projection of the optical axis of the optical compensation layer on the first polarizer, includes:
driving the liquid crystal display panel to convert from displaying the black picture to displaying the non-black picture; and
withdrawing the first vertical electric field, so that the second liquid crystal layer is in a first steady state;
wherein an electric field intensity of the first vertical electric field is greater than an electric field intensity of the second vertical electric field.