Laminated Enhancement Film_Ningbo Exciton Technology Co., Ltd,

Laminated Enhancement Film

Laminated enhancement films, according to the types of optical films in the composite sheets, can be divided into such sub-types as diffuser-on-prism films (DOP), prism-on-prism films (POP), microlens-on-prism films (MOP), prism-on-microlens films (POM), etc.

Features

A backlight unit used in a traditional liquid crystal display (LCD) comprises (from bottom to top) a light source, a light guiding plate, a bottom diffusion sheet, a bottom brightness enhancement film, an top brightness enhancement film and an top diffusion sheet. However, such backlight units are thick and cause high cost and assembly inconvenience. To solve the foregoing problems, Exciton Technology develops a multifunctional laminated enhancement film that integrates two or three kinds of optical films into one composite sheet using resin formulation and advanced composite technologies.

Advantages

Compared with traditional backlight unit, laminated enhancement films have the following advantages:

1. Avoiding the frequent use of the substrate of a backlight unit, and reducing the cost and the total thickness of the unit;

2. Reducing assembly time, thus improving assembly line efficiency;

3. Achieving power savings and increasing display brightness;

4. By superimposing, the top of the prisms is coated inside and protected against scrapes;

5. The composite film is more stiff and warp-resistant.

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Backlight unit and reflective polarizing films

In addition to the above-mentioned films, the Company in recent years has developed a plurality of new composite films based on reflective polarizing films (hereinafter referred to as the "core layer"), such as core-layer-on-prism films (COP), core-layer-on-prism-prism films (COPP), and COPP Plus films made of COPP films laminated with optically clear adhesives (OCA).

The core layer is a multi-layered film of polyethylene naphthalate (PET) and its copolymers. Its special optical structure can convert S light to P light, thus increasing light utilization and causing luminance gain over a wide spectrum. Take COP as an example, the traditional diffusion film is coated on the core layer, which is bounded with a prism substrate to create a multifunctional composite film. Such a film features a diffusion surface to provide brightness enhancement. The use of the film reduces the thickness of the whole unit and increases the ease of assembly, laying the groundwork for the development of ultra-slim devices.

Optical Film Center