Driving sustainable mobility with light curtain technology

Challenge

As new energy vehicles and intelligent connected technologies rapidly evolve, consumer expectations for smart vehicle interiors and windows continue to rise. Conventional car windows fall short in privacy protection, glare reduction, thermal insulation, and intelligent control, failing to meet modern users' demand for a premium driving experience. Developing an efficient, intelligent, and safe dimmable window technology has thus become a pressing priority for the automotive industry.

Solution

Shengshi Technology's Light Curtain Technology is the result of BOE's decades of expertise in liquid crystal display. Using dye-doped liquid crystal dimming, it adjusts light transmission rapidly through voltage-driven molecular deflection.

The technology offers five key advantages. First, sub-second response: 10 levels of brightness adjustment can be realized under 1.5 seconds, adapting instantly to changing light conditions. Second, natural grey-black tone blends seamlessly with automotive glass, eliminating the center-diffusion issue of conventional dimming and ensuring superior uniformity. Third, its privacy and anti-glare feature enables one-way transparency, maximizing in-cabin privacy while protecting passengers' eyes from harsh direct light. Fourth, thermal protection can block 99.9% of UV rays and 99.5% of visible light, significantly reducing cabin temperature. It thus cuts air-conditioning usage and saves energy. Fifth, a safe 12V low-voltage design — compared to traditional 110V dimming systems — consumes less power and offers greater safety and reliability.

Key breakthroughs span multiple dimensions. Technically, the solution evolved from BOE's advanced super-dimensional field switching technology, built on 30 years of BOE’s semiconductor display expertise, achieving deep convergence between display and sensing technologies. In application scope, it has expanded beyond passenger vehicles to rail transit and building facades. On standardization, BOE led the development of national and industry standards for smart-window dye LC dimming glass, providing technical benchmarks for adoption across architecture, smart vehicles, and trains. The ZEEKR 009, the world's first production NEV equipped with BOE's LC smart light curtain, has earned broad market recognition for its intelligent features and elevated driving experience.

Impact & Value

Economically, the Light Curtain Technology enhances vehicle intelligence and market competitiveness, generating higher added value for automakers while spurring growth across related industry chains.

Socially, privacy protection, glare reduction, and thermal insulation significantly elevate passenger comfort, meeting modern consumers' expectations for a premium lifestyle.

Environmentally, reduced cabin temperatures translate to lower air-conditioning usage and thus reduced energy consumption and carbon emissions. By blocking the vast majority of UV and visible light, the technology also protects interior materials from UV degradation, extending product lifespans.

Industry experts describe the technology as a milestone in smart vehicle glazing, opening new solution pathways and development directions for automotive intelligence. User feedback consistently highlights tangible improvements in driving comfort, peace of mind, and the satisfaction of a tech-enabled, convenient experience.