Reflective polarizer sheet

A polarizer, reflective technology, applied in the field of optical films, can solve problems such as color shift
CN101630032AInactive Publication Date: 2010-01-20ETERNAL MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
ETERNAL MATERIALS CO LTD
Publication Date
2010-01-20
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a reflective polarizer sheet which comprises a cholesterol liquid crystal layer, a phase difference membrane with a 1 / 4 wave length and a bonding layer. The bonding layer is positioned between the cholesterol liquid crystal layer and the phase difference membrane with the 1 / 4 wave length; and a jointing agent and blue pigment are included in the bonding layer. The blue pigment is added in the bonding layer of the reflective polarizer sheet so as to compensate the color problem caused by the reflective polarizer sheet self and a large horizontal viewing angle. A micro bead can be added in the bonding layer of the reflective polarizer sheet or a condenser micro-structure is configured on the outer side of the phase difference membrane with the 1 / 4 wave length so as to further improve the color problem caused by the reflective polarizer sheet self and the large horizontal viewing angle.
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Description

technical field

[0001] The invention relates to an optical film, especially a reflective polarizer, which can improve the utilization rate of light source and reduce the optical color shift of different viewing angles. Background technique

[0002] Among flat-panel displays, liquid crystal displays are the only ones that use linearly polarized light to create bright, dark, and gray scales. Generally speaking, the main structure of a liquid crystal display ("LCD" for short) includes a liquid crystal display panel and a backlight module. Therefore, the basic principle of its display screen is that the light is provided by the backlight module, and then the light generates linearly polarized light after passing through the polarizer. Then, with the arrangement and twist of the liquid crystal molecules in the liquid crystal display panel, bright and dark changes occur, and a rich picture is displayed.

[0003] However, the total brightness of the current liquid crystal display...

Claims

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