Sunlight Readable Touchscreens: What OEMs Need to Know
- 1 day ago
- 2 min read
Many industrial and outdoor devices must operate in direct sunlight, where standard displays become difficult or impossible to read. Sunlight readable touchscreens are designed to maintain visibility in bright environments such as construction equipment, agricultural machinery, military vehicles, and outdoor kiosks. Understanding what makes a display sunlight readable helps OEMs design better products for outdoor use.
What Is a Sunlight Readable Display?
A sunlight readable display is an LCD that remains visible in bright ambient light and direct sunlight. This is typically achieved through a combination of high brightness, optical bonding, and anti-reflective surface treatments.
Display Brightness (Nits)
Brightness is measured in nits (cd/m²).
Typical brightness levels:
Consumer devices: 250–400 nits
Indoor industrial equipment: 400–700 nits
Outdoor equipment: 800–1200 nits
Direct sunlight environments: 1000+ nits
For most outdoor industrial applications, displays between 800 and 1200 nits are considered sunlight readable.
Optical Bonding
Optical bonding improves sunlight readability by eliminating the air gap between the LCD and the cover glass.
Benefits include:
Reduced reflection
Improved contrast
Better durability
Improved touch accuracy
Reduced condensation
Optical bonding is one of the most important upgrades for outdoor displays.
Anti-Glare and Anti-Reflective Coatings
Surface treatments help reduce reflections and glare from sunlight.
Common options include:
Anti-glare coatings
Anti-reflective coatings
Chemically etched glass
Matte finishes
These coatings significantly improve readability in bright environments.
Applications That Require Sunlight Readable Touchscreens
Common applications include:
Construction equipment displays
Agricultural equipment displays
Marine electronics
Outdoor kiosks
Military equipment
Wayfinding - Outdoor Maps
Fleet vehicle tablets
Industrial control panels
Oil and gas equipment
Car Wash Centers
EV Charging Stations
Designing an Outdoor Touchscreen System
When designing a sunlight readable touchscreen, OEMs should consider:
Brightness requirements
Optical bonding
Glass thickness
Operating temperature
EMI environment
Mounting method
Glove operation
Water exposure
Sunlight readability is not just about brightness. It is the result of the entire display and touchscreen system working together. At UICO, we look at the big picture, including rain, moisture, and temperatures. We would love to hear about your application and guide your integration every step of the way.
