Ultra-thin wide-band circular polarizer and its application

Abstract

The invention provides an ultra-thin type wide-wave domain circular polarizing plate. The polarizing plate comprises a linear polarizing plate and a composite quarter phase retardation film which arearranged in a stacked manner, and the composite quarter-phase retardation film is a liquid crystal inverse dispersion film; wherein, the composite quarter-phase retardation film comprises a first phase retardation film and a second phase retardation film which are combined in the stacked manner, and the linear polarizing plate is disposed in the stacked manner on one side of the first phase retardation film away from the second phase retardation film; and a composite plane inner phase difference value Ro of the composite quarter-phase retardation film is 120 nm-190 nm, and an acute angle formed by an optical axis of the composite quarter-phase retardation film an absorption axis of the linear polarizing plate is 11 degrees -21 degrees.

Description

Technical field

[0001] The invention belongs to the technical field of polarizing plates, and in particular relates to an ultra-thin wide-wave domain circular polarizing plate and applications thereof. Background technique

[0002] Liquid crystal molecules have different refractive index properties in different axial directions, which is called birefringence of liquid crystal molecules. The birefringence of the liquid crystal molecules causes the polarization direction of the polarized light to be changed when passing through the liquid crystal molecules and an optical retardation occurs, resulting in a phase difference, which is the optical anisotropic of the liquid crystal molecules. On the one hand, since the optical anisotropy of the liquid crystal will change the direction of the light polarization, it can be used to adjust the light transmittance to achieve the light and dark effect on the display, and then be applied to the display. On the other hand, due to the optical r...

Examples

Embodiment 1

[0047] A liquid crystal reverse dispersion composite quarter phase retardation film, the liquid crystal reverse dispersion composite quarter phase retardation film is a liquid crystal reverse dispersion film; wherein the composite quarter phase retardation film It includes a first phase retardation film and a second phase retardation film that are laminated and combined; the composite quarter phase retardation film has a composite plane retardation value Ro of 120 nm to 190 nm.

Embodiment 2

[0049] An ultra-thin wide-wave domain circular polarizing plate, comprising a stacked linear polarizing plate and a composite quarter phase retardation film, the composite quarter phase retardation film is a liquid crystal reverse dispersion film; wherein, The composite quarter phase retardation film includes a first phase retardation film and a second phase retardation film that are laminated and combined, and the linear polarizer is stacked on the first phase retardation film away from the second phase retardation film. One side; the composite quarter phase retardation film has a composite plane retardation value Ro of 120nm to 190nm, and the optical axis of the composite quarter retardation film and the absorption of the linear polarizer The acute angle formed by the shaft is 11° to 21°.

Technical field

[0001] The invention belongs to the technical field of polarizing plates, and in particular relates to an ultra-thin wide-wave domain circular polarizing plate and applications thereof. Background technique

[0002] Liquid crystal molecules have different refractive index properties in different axial directions, which is called birefringence of liquid crystal molecules. The birefringence of the liquid crystal molecules causes the polarization direction of the polarized light to be changed when passing through the liquid crystal molecules and an optical retardation occurs, resulting in a phase difference, which is the optical anisotropic of the liquid crystal molecules. On the one hand, since the optical anisotropy of the liquid crystal will change the direction of the light polarization, it can be used to adjust the light transmittance to achieve the light and dark effect on the display, and then be applied to the display. On the other hand, due to the optical r...

Examples

Embodiment 1

[0047] A liquid crystal reverse dispersion composite quarter phase retardation film, the liquid crystal reverse dispersion composite quarter phase retardation film is a liquid crystal reverse dispersion film; wherein the composite quarter phase retardation film It includes a first phase retardation film and a second phase retardation film that are laminated and combined; the composite quarter phase retardation film has a composite plane retardation value Ro of 120 nm to 190 nm.

Embodiment 2

[0049] An ultra-thin wide-wave domain circular polarizing plate, comprising a stacked linear polarizing plate and a composite quarter phase retardation film, the composite quarter phase retardation film is a liquid crystal reverse dispersion film; wherein, The composite quarter phase retardation film includes a first phase retardation film and a second phase retardation film that are laminated and combined, and the linear polarizer is stacked on the first phase retardation film away from the second phase retardation film. One side; the composite quarter phase retardation film has a composite plane retardation value Ro of 120nm to 190nm, and the optical axis of the composite quarter retardation film and the absorption of the linear polarizer The acute angle formed by the shaft is 11° to 21°.

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