Reactive mesogen is a liquid crystalline mesogen containing a reactive end group that is mutually polymerizable under ultraviolet (UV) light illumination. And it is widely used in display devices such as liquid crystal displays (LCDs) and organic light-emitting diode displays (OLEDs). It can help to improve the image quality of the display. In this post, we will introduce the Uv reactive mesogens.

films structure

What are the advantages of reactive liquid crystal optical film?

Traditional optical films are mostly made of polymers that are stretched uniaxially or biaxially. Originally, the isotropic molecular axis arranged randomly will be deflected to anisotropic along the extending direction so that the incidence of different approaches will be changed. The phase delay phenomenon is in which the travel speed of light is different. And this can be used to adjust or compensate for the phase of light.

What is the BLU?

The backlight unit (BLU) is a key component that provides the light source for the back of the LCD. The LCD panel itself does not have Light characteristics. Therefore, a light source must be added to the LCD panel to achieve the display effect. LCD backlight module main is composed of backlight, optical film, adhesive products, insulation products, plastic frame, etc.

What are the BEF optical films?

Brightness enhancement film is a reactive cholesteric reflective polarizer (CRP) with a light recovery mechanism. Cholesterol liquid crystal is a naturally helical structure. Its helical structure will not be destroyed by photopolymerization; when incident light enters, half of the incident light (circularly polarized light) will join along the spiral design. The other half is reflected due to reverse rotation. This is the so-called (circular) polarization selectivity. Therefore, it is sometimes used as a polarization conversion film.

What is the polarizing film?

The polarizing film is an iodine-based polarizing film. Its manufacturing process is that the transparent PVA film absorbs iodine ions and stretches it uniaxially to impart a polarization mechanism. However, because PVA is easy to drink water, two layers of TAC film must be added for protection, cost, and product thickness.
In contrast, the coating type thin-film liquid crystal polarizing film with anisotropic reactive liquid crystal added with dichroic dyes can be made into in-cell polarizers, in addition to the simple process and thin thickness. Further, solve the multi-layer interface optical interference and improve optical efficiency.

What chemicals do we have for the reactive mesogens?

Our company Daken Chem is a professional electronic chemicals supplier in China. The chemicals we have for reactive mesogens are RM82, RM257, etc. Fore more Uv reactive mesogens chemicals, please visit

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