Patent ID: 11868009
Assignee: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 14:
15. A method for manufacturing a liquid crystal display panel, comprising:
providing a first polarizer and a second polarizer, a transmission axis of the first polarizer being perpendicular to a transmission axis of the second polarizer;
forming a liquid crystal layer between the first polarizer and the second polarizer, wherein the liquid crystal layer includes first liquid crystal molecules, and orthographic projections of optical axes of the first liquid crystal molecules on the first polarizer are parallel to any of the transmission axis of the first polarizer and the transmission axis of the second polarizer;
forming a first optical compensation layer between the liquid crystal layer and any of the first polarizer and the second polarizer, wherein an orthographic projection of an optical axis of the first optical compensation layer on the first polarizer is perpendicular to the orthographic projections of the optical axes of the first liquid crystal molecules on the first polarizer; and
forming a second optical compensation layer on a side, where the first optical compensation layer is located, of the liquid crystal layer, wherein an optical axis of the second optical compensation layer is perpendicular to a plane where the second optical compensation layer is located,
wherein forming the liquid crystal layer between the first polarizer and the second polarizer includes:
providing a first base substrate and a second base substrate, and
forming the liquid crystal layer between the first base substrate and the second base substrate, wherein the first base substrate is disposed between the first polarizer and the liquid crystal layer, and the second base substrate is disposed between the second polarizer and the liquid crystal layer; and

the method further comprises:
forming a third optical compensation layer between the first base substrate and the liquid crystal layer or between the second base substrate and the liquid crystal layer wherein an orthographic projection of an optical axis of the third optical compensation layer on the first base substrate is parallel to orthographic projections of optical axes of the first liquid crystal molecules in the liquid crystal layer on the first base substrate,
wherein the first optical compensation layer is disposed on a side of the first base substrate away from the liquid crystal layer or on a side of the second base substrate away from the liquid crystal layer; a sum of an in-plane retardation of the third optical compensation layer and an in-plane retardation of the liquid crystal layer is equal to a positive integer multiple of a first wavelength wherein the first wavelength is in a range of a difference between 535 nm and 50 nm to a sum of 535 nm and 50 nm; or
wherein the first optical compensation layer is disposed between the first base substrate and the second base substrate; and an in-plane retardation of the first optical compensation layer is RO1, an in-plane retardation of the third optical compensation layer is RO2, an in-plane retardation of the liquid crystal layer is ROLC, and RO1, RO2 and ROLC satisfy a following formula:

RO2−RO1+ROLC=nλ,, where n is an integer, λ is a first wavelength, and the first wavelength is in a range of a difference between 535 nm and 50 nm to a sum of 535 nm and 50 nm.