A car equipped with switchable roof glass, a special glass that adjusts the amount of light intake.
PVB Interlayer Solutions for
Switchable roof glass

什么是隐私玻璃?

Switchable glass is a type of glass that changes from transparent to opaque or translucent through electricity or other means of light control. There are various types of switchable glass technologies, including electrical and liquid crystal. PDLC (polymer dispersed liquid crystal), SPD (Suspended Particle Device) and EC (electrochromic) switchable types are currently most known and can be adopted according to the application and vehicle concept.

Switchable glass can switch between transparent and opaque at any time, freely controlling the sunlight entering the vehicle and providing passengers with comfort and a driving experience. In recent years, switchable roof glass has spread rapidly.

Consumer requirements for automotive switchable roof glass

Purchasing a car option needs experience in test driving at a dealer

Switchable glazing is becoming a more popular option not only for premium but also for mid-segment vehicles. Consumers have started to set requirements for what kind of switchable appearance the roof of their car should have, and they want to choose this option for their vehicle.

Some of the most important requirements are that the roof glass should have a neutral colour appearance and privacy function to stay protected against the heat from the sun.

At SEKISUI S-LEC, we offer different S-LEC™ Dark Colour Films to achieve the desired colour appearance for different switchable types.

Altering white appearance of PDLC by grey colour

聚合物分散液晶(PDLC)是一种将液晶分子分散在聚合物基质中的材料。 液晶分子被封装在可切换薄膜中,当施加电压时,薄膜就会从朦胧变得透明。

PDLC 薄膜一般呈白色,必须与灰色 PVB 夹层层压合,才能获得理想的车顶玻璃。 S-LEC™ 深色可提供超过 25 个颜色等级,包括三种灰色和多种类型的 Tvis(可见光透射率)。 您可以根据汽车的设计理念和玻璃所需的特性,选择所需的颜色等级,打造自己喜欢的可切换式车顶玻璃。

此外,S-LEC™ Dark Colours 还具有低雾度性能,可在车顶玻璃上创造出具有出色设计特性的开放空间。

Neutralize blue appearance of SPD and EC

SPD (Suspended Particle Device) is a switchable device that disperses microscopic light-absorbing particles in film droplets. EC (Electrochromic) type uses electrochromic material that switches colour electrically. Both types can switch between transparent and low transmittance.

Typically, both SPD and EC types have a blue-tinted appearance. When laminated with S-LEC™ Bronze Colour with SPD or EC types, the glass cancels out this blue tint from the switchable film, creating a more neutral colour to the overall glass. This allows the colours of the materials in the interior to remain true to the intended colour that designers wish to showcase for the vehicle.

可切换车顶玻璃的最佳设计

It's possible to provide individual color preferences with optimal design for switchable roof glass.

S-LEC™ Dark Colour Films for laminated roof glass offer 30-plus colour variations in both the 0.76mm thickness commonly used for automotive glass and the 0.38mm thickness required in roof system optimization for the superior design for automotive roof glass.

In addition, S-LEC™ Dark Colour Films are developed to have low haze, which minimizes the hazy appearance of phenonium that can occur when layering several films in one stack. Our experts can advise you on the best colour and thickness to achieve optimal performance in line with your requirements.

We can offer bolder colours as a part of our customized colour program to meet individual customer’s demands or for vehicle concepts. Download our brochure for more information about our colourline-up, applications and technical data, such as Tvis and L*a*b* values.

彩色系列

Colour Glass Collection with dark colour variations

SEKISUI S-LEC 可提供多种隐私颜色。 请查看我们的色彩设计,它们为设计师和工程师提供了更多的可能性和选择。

通过我们的彩色系列查看 S-LEC™彩色玻璃,并考虑将 S-LEC™ 薄膜纳入您的可调光车顶玻璃。