Smart glass
Glass is formed by the fusion of potash, lime and silica at high temperature.
Smart glass (or switchable glass) has properties that can change in response to external stimuli. Typically, its light transmission properties are altered when a voltage, light or heat are applied. Smart glass switches either automatically or manually and can be used to manage glare, the amount of heat or light transmitted and so on. Technologies include; electrochromic, thermochromic, SPD and PDLC (see below).
The smart glass and window market was valued at US$2.2 bn in 2014 and is expected to exceed US$6 bn by 2021, at a CAGR of 14.7%, from 2015 to 2021.
Increasing demand for efficient utilisation of energy among building managers, owners and construction companies is fuelling the smart glass and window market globally. In addition, rapid demand for smart glass in the automobile sector has resulted in significant production of fuel efficient smart glass with low emissivity. Special features such as the ability to block UV light and fast switching capability, mean that smart glasses can be preferred over normal glasses. In addition, smart windows reduce heat formation within vehicles and ensures passenger safety.
The smart windows market is dynamic and emerging as the future technology, with application areas such as power generation, construction and automotive among others. However, the high price of smart glass is a significant concern for end users and is restraining the growth of the market.
By technology, the market can segmented broadly into: active and passive:
- Active smart glass and windows held the largest share of the market globally in 2014 and accounted for more than 80%. These glasses are easy to operate and can change light transmission properties with the help of a single switch. Thus, they have found applications in the construction and transportation sectors. The active segment has been further divided into polymer dispersed liquid crystals (PDLC), suspended particle device (SPD), electrochromic and others. The suspended particle device segment had the largest share of the active smart glass and window market in 2014, owing to wide application in automobiles and airplanes.
- The passive segment is further classified into passive photochromic and passive thermochromic. Passive photochromic smart windows provide a broader range of dimmability and have many potential applications in the architectural sector. This segment had the largest share of the global market for passive smart glass and window.
In terms of applications, the global market for smart glass and window can be divided into four segments: automotive, aircraft, construction and marine. The automotive sector held the largest share of the market in 2014. Increasing demand for fuel efficiency, better adaptability and control of light along with passenger privacy and protection from radiation are some of the major factors boosting the demand for smart glass and window in automotive sector.
By geography, market is segmented into four regions i.e. North America, Europe, Asia Pacific and Rest of the World (RoW). North America had the largest share of the global market in terms of revenue in 2014 and accounted for more than 30% of the overall market. The market in North America was primarily driven by increasing technological development and rising consumer awareness about energy conservation in U.S. and Canada among others. Europe held the second largest market globally and accounted for more than 25%. The market in this region is driven by architectural developments along with the existence of large glass formats.
Some of the key players in smart glass market are Smart Glass International Ltd., Raven Brick LLC, Glass Apps, Gentex Corp., AGC Ltd, Research Frontiers, Inc., SPD Control System Corporation, Pleotint LLC, SAGE Electrochromics, Hitachi Chemicals Co. Ltd, Scienstry Inc., SAGE Electrochromics, PPG Industries and View, Inc among others.
[edit] Related articles on Designing Buildings
- Casper™ screen cloaking technology.
- Engineering Smart Cities.
- EVA film.
- European connected and smart home market.
- Internet of things.
- Low voltage driving PDLC film for smart glass.
- PAS 180:2014 Smart cities – Vocabulary.
- PAS 181:2014 Smart city Framework.
- PAS 182 Smart city data concept model.
- Smart airports.
- Smart city.
- Smart cities design timeframe.
- Smart construction.
- Smart film switchable glass.
- Smart greenhouse.
- Smart kitchen appliances.
- Smart meter.
- Smart technology.
- Smart window coating.
- The smart buildings market.
Featured articles and news
Key points for construction at a glance with industry reactions.
Functionality, visibility and sustainability
The simpler approach to specification.
Architects, architecture, buildings, and inspiration in film
The close ties between makers and the movies, with our long list of suggested viewing.
SELECT three-point plan for action issued to MSPs
Call for Scottish regulation, green skills and recognition of electrotechnical industry as part of a manifesto for Scottish Parliamentary elections.
UCEM becomes the University of the Built Environment
Major milestone in its 106-year history, follows recent merger with London School of Architecture (LSE).
Professional practical experience for Architects in training
The long process to transform the nature of education and professional practical experience in the Architecture profession following recent reports.
A people-first approach to retrofit
Moving away from the destructive paradigm of fabric-first.
International Electrician Day, 10 June 2025
Celebrating the role of electrical engineers from André-Marie Amperè, today and for the future.
New guide for clients launched at Houses of Parliament
'There has never been a more important time for clients to step up and ...ask the right questions'
The impact of recycled slate tiles
Innovation across the decades.
EPC changes for existing buildings
Changes and their context as the new RdSAP methodology comes into use from 15 June.
Skills England publishes Sector skills needs assessments
Priority areas relating to the built environment highlighted and described in brief.
BSRIA HVAC Market Watch - May 2025 Edition
Heat Pump Market Outlook: Policy, Performance & Refrigerant Trends for 2025–2028.
Committing to EDI in construction with CIOB
Built Environment professional bodies deepen commitment to EDI with two new signatories: CIAT and CICES.
Government Grenfell progress report at a glance
Line by line recomendation overview, with links to more details.
An engaging and lively review of his professional life.
Sustainable heating for listed buildings
A problem that needs to be approached intelligently.
50th Golden anniversary ECA Edmundson apprentice award
Deadline for entries has been extended to Friday 27 June, so don't miss out!
CIAT at the London Festival of Architecture
Designing for Everyone: Breaking Barriers in Inclusive Architecture.
Mixed reactions to apprenticeship and skills reform 2025
A 'welcome shift' for some and a 'backwards step' for others.
Comments
Nicely written, although I would suggest updating the market research estimates to match the latest document edit date.