Can dimming film be used in the sun room?
Editor:longsheng optronics   Date:11.03.2021  Times:287 times

After we have built our own sun room, in addition to considering the issues of ventilation and lighting, we must also pay attention to the issue of privacy. Electric sun shades for sun rooms are a good choice, but sun shades must be covered by ourselves every time. It’s easy to break down after a long time. Now I will introduce a new product for you, which is the sun room dimming film. So what is the sun room dimming film?

   dimming film, literally translated as polymer dispersed liquid crystal. As the name implies, the light-adjusting film is a film that can adjust the light passing state. It mainly works between the scattered state and the transparent state. That is, the film itself can be changed between transparent and non-transparent (visual effect is close to frosted glass), and the transparency is adjusted by voltage.

   How does PDLC achieve transparency and opacity?

PDLC (Polymer Dispersed Liquid Crystal) is a mixture of low-molecular liquid crystal (Liquid Crystal, abbreviated as LC) and prepolymer, under certain conditions, after polymerization, the formation of micron-sized liquid crystal droplets uniformly dispersed in the polymer network , And then use the dielectric anisotropy of liquid crystal molecules to obtain a material with electro-optic response characteristics. The following schematic diagram is based on its dielectric anisotropy.


  1. When the dimming film is powered off, the polymer liquid crystal materials are arranged disorderly, making the light unable to penetrate the film. The effect seen at this time is the milky white opaque state.

  2. When the dimming film is energized, the polymer liquid crystal material in the middle of the film is arranged in an orderly manner under the action of the electric field, allowing light to pass through the film, and the effect seen at this time is the state of a transparent and colorless film.

Dimming film application field

   The dimming film can be directly attached to the transparent strengthened glass, which is transparent when energized; it is misty when not energized, and has a wide range of applications.

   1. Cover privacy-electric sunshade.

   Compared with those traditional and bulky blinds and expensive "smart glass", this is obviously a relatively convenient and feasible way to protect privacy. It is suitable for a variety of places such as family living room, bedroom, kitchen, bathroom and office.

  2, energy saving

   Building energy consumption accounts for more than a quarter of the total energy consumption. The energy consumption of doors and windows accounts for about half of the building energy consumption, and the loss through glass conduction accounts for 70%.

   When light penetrates the "glass curtain wall" and enters the room to generate heat, if you want to lower the air-conditioning temperature, every 1°C decrease requires an increase in power consumption by 6%. Therefore, when the outdoor temperature is too high, use a dimming film and adjust it to a foggy shape, which has a good heat insulation effect and can ensure a relatively cool indoor.

  Compared with other glasses, the glass with dimming film can not only absorb ultraviolet and reflect infrared heat energy, but also become foggy to reflect visible light heat energy, so it can effectively reduce the indoor temperature.

  3, advertising multimedia use

   The glass curtain wall with dimming film can be used as an electronic curtain and heat insulation wall during the day and a large advertising wall at night.

  The difference between dimming film and smart glass film 

   smart glass film  is a new type of special optoelectronic glass product with a sandwich structure that uses a special process to solidify the liquid crystal film between two layers of glass and combine it with high temperature glue.

   When the dimming glass is in its natural state, the polymer liquid crystal materials laminated in the glass are arranged disorderly, so that light cannot penetrate the glass. The effect seen at this time is the milky white opaque state.

  When the smart glass film  is energized, under the action of an electric field, the polymer liquid crystal material in the middle of the glass is arranged in an orderly manner, so that light can pass through the glass, and the effect seen at this time is the state of transparent and colorless glass.

   These two states can be switched at will between milliseconds, both openness and privacy, which is the biggest feature of smart glass film .

Taicang Longsheng Optronics Technology Co., Ltd. (hereinafter referred to as“Longsheng Optronics”) was established in Taicang City, Jiangsu Province. It is a separate development, manufacturing, sales company and manufacturing of new materials for LCD PDLC film by Chiefway Optronics in accordance with the future strategic development plan of PDLC film. 

PDLC film | PDLC smart film | smart glass film | Electrochromic Window Film | dimming film

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