Beyond the Blinds: How a 9.9mm Breakthrough Reshapes Smart Glass

EDEN PRAIRIE, MN – September 29, 2026 — As a former market analyst, I’ve always found that the most disruptive industry shifts rarely arrive with flashy consumer marketing campaigns. Instead, they are often buried in the technical specification sheets of B2B suppliers. This week, Cardinal Glass Industries—the quiet manufacturing giant whose glass sits inside countless North American windows and doors—released an update to its CLiC On-Demand Privacy Glass. On the surface, it reads like a standard product expansion: larger sizes, a thinner profile, and lighter weight. But reading between the lines of the data, this announcement signals a fundamental shift in residential architecture, one that could eventually render traditional window treatments obsolete.

The Minnesota-based manufacturer has engineered its next-generation switchable glass to reach up to 50 square feet per pane, accommodating heights of 10.75 feet while simultaneously shrinking the glass thickness to a mere 9.9 millimeters. For architects, luxury home builders, and interior designers, these aren't just incremental numbers. They represent the removal of the final physical bottlenecks that have kept dynamic privacy glass from becoming a standard, off-the-shelf feature in modern homes.

Engineering Out the Haze: The PSCT Advantage

To understand the significance of this update, we have to look at the historical failures of the smart glass market. For years, the industry standard has been Polymer Dispersed Liquid Crystal (PDLC) technology. While PDLC successfully allowed glass to switch from transparent to opaque, it came with significant compromises. The polymer films used in traditional PDLC systems were notorious for off-axis haziness—meaning the glass looked cloudy unless viewed straight on—and they were prone to mechanical degradation and edge failure over time.

The updated CLiC system utilizes a film-free Polymer Stabilized Cholesteric Texture (PSCT) technology, marking a sharp departure from this flawed standard. By eliminating the polymer film entirely, PSCT achieves a shift from clear to private in under 100 milliseconds without the persistent fogginess that plagued earlier generations. When powered off into its private mode, the glass uniformly scatters diffused light, maintaining interior brightness while completely obscuring the view. When clear, it offers crystal-clear optical quality that is indistinguishable from standard premium glass.

“We are thrilled to enhance the design of CLiC to meet the needs of our customers and their end users,” said Aaron Arntson, General Manager for CLiC at Cardinal. “The culture of continuous improvement is entrenched at CLiC, and we will continue to listen to our customers’ feedback and design the best possible product to meet their needs.”

This continuous improvement is critical when examining the longevity of building materials. Homes face intense exterior solar thermal stress, and standard PDLC films often struggle under decades of direct UV exposure. By utilizing a film-free PSCT approach built directly into the insulating glass unit (IGU), the company has effectively engineered out the primary failure modes, offering a product designed to last the lifetime of the window itself.

Solving the Architectural Bottleneck

The most significant barrier to widespread smart glass adoption hasn't necessarily been the technology itself, but rather the cumbersome nature of integrating it into standard construction practices. Early iterations of acoustic or smart glass often required thick profiles—sometimes exceeding 12.8 millimeters—and were exceptionally heavy. This forced window manufacturers to design custom, reinforced framing systems just to hold the glass, driving up costs and complicating installation on the job site.

By reducing the thickness to 9.9 millimeters across the entire size range, the engineering team has achieved a lighter profile that completely changes the installation calculus. The 9.9mm monolithic unit now weighs in at just 4.4 pounds per square foot, a noticeable reduction from the 5.2 pounds of previous iterations.

More importantly, this thinner profile allows the technology to be seamlessly substituted as the inner pane of a standard exterior insulating glass unit. Ranging from 3/4 inch up to 2 inches overall, these units are now natively compatible with the standard residential exterior windows, doors, and framing systems used by major fabricators. Builders no longer need to commission special modifications or custom extrusions to offer on-demand privacy.

As one luxury residential architect noted during a recent industry consultation, the ability to specify 10-foot-tall privacy glass that drops right into a standard pocket changes the entire design phase. It allows for sweeping, uninterrupted floor-to-ceiling glass expanses without the visual clutter of motorized blind housings or heavy drapery tracks.

The Death of Blinds and the Premium Cost of Privacy

This brings us to the broader architectural movement: the gradual phase-out of mechanical window treatments. Modern design principles increasingly favor minimalism, natural light, and versatile spaces. However, the need for privacy—especially in dense urban or suburban environments—has traditionally forced designers to compromise their vision with shades or blinds that interrupt the clean lines of a glass facade.

Switchable glass offers a compelling alternative, but it comes at a premium. While standard motorized blinds can be costly, dynamic glass solutions often sit at the very top of the pricing spectrum, frequently exceeding $100 per square foot. Cheaper alternatives like retrofit smart films exist, allowing homeowners to apply a PDLC layer to existing windows, but they often sacrifice optical clarity and longevity.

Yet, the value proposition of a fully integrated PSCT system extends far beyond simple privacy. Beyond the aesthetic superiority of a haze-free, film-less design, these integrated units deliver foundational performance features that retrofit films and blinds simply cannot match. The double-laminated construction inherently blocks 99 percent of harmful UV rays, protecting expensive interior furnishings and artwork from sun fading.

Additionally, the dense construction of the glass provides exceptional sound insulation. Even at the thinner 9.9mm profile, the units offer structural density that significantly dampens exterior noise. Previous iterations of the CLiC unit boasted a Sound Transmission Class (STC) rating of 37, capable of reducing outside noise by up to 45 decibels. When combined with storm-resistant durability and seamless integration into smart home automation systems—allowing homeowners to trigger privacy modes via voice commands or automated sunset schedules—the premium cost begins to align with the multifaceted value delivered to the homeowner.

A Market Primed for Exponential Growth

Looking at the macroeconomic data, the timing of this product expansion is highly strategic. The global smart glass market is currently in a phase of explosive growth. Valued at roughly $12.43 billion in 2025, industry projections suggest the market will soar to an estimated $32.76 billion by 2034, exhibiting a compound annual growth rate in excess of 11 percent.

This surge is driven by a confluence of factors: stricter energy efficiency regulations, the widespread adoption of smart home ecosystems, and a commercial sector increasingly focused on dynamic solar control. While competitors in the electrochromic space—which gradually tints glass to control glare and heat gain—are capturing portions of the commercial market, the demand for instant, opaque privacy remains a distinct and highly lucrative segment, particularly in residential and interior partition applications.

By addressing the specific pain points of window fabricators—namely weight, thickness, and standard IGU compatibility—Cardinal is positioning itself to capture a significant share of this expanding market. It is a classic B2B growth strategy: make the innovative technology easier for the middleman to adopt, and consumer adoption will naturally follow.

For years, the promise of smart glass felt like a futuristic novelty, hindered by cloudy optics and bulky frames. Today, as the technology slims down to a mere 9.9 millimeters and scales up to 50 square feet, that futuristic promise is finally becoming a standard, off-the-shelf reality for the modern home.