In outdoor applications, poor visibility under strong sunlight can be easily solved by adopting high-brightness LCD panels, which is not a technical difficulty.
The core challenges lie in product waterproof performance and long-term durability under prolonged exposure to direct sunlight and rain.
So what key measures should we take to tackle these critical issues?
How to maintain clear readability even under strong sunlight?1.The surface is coated with composite AG+AR+AF layers to enhance the basic contrast for outdoor viewing. It reduces screen whitening and ghosting under strong sunlight, improves light transmittance, keeps the screen surface clean and transparent, and greatly optimizes the display performance in direct daylight.
2.Upgraded high-brightness backlight with an LCD brightness of over 1000 nits. The high screen brightness suppresses outdoor natural light, preventing contrast collapse and screen whitening caused by ambient light exceeding display brightness.
3.Adopting full lamination process, there is no air layer between the cover glass and display panel. It thoroughly eliminates ghosting, whitening and haze caused by interlayer air reflection, delivering distinct black-and-white contrast and outstanding layering under strong sunlight.
4.Light-blocking adhesive is added around the edges to prevent stray ambient light from penetrating into the screen, reducing local whitening and halo issues.
What can we do to achieve precise touch performance?1.The surface is coated with a high‑density AF hydrophobic and oleophobic coating. With an ultra‑high water contact angle, rainwater and dew quickly form droplets and slide off without forming a continuous water film. This cuts off the conductive path caused by moisture and fundamentally eliminates interference to capacitive touch signals.
2.It adopts industrial-grade wide-temperature and anti-interference touch IC, optimizes the capacitive sampling frequency in humid environments, filters clutter signals caused by moisture, and effectively suppresses erratic touches and ghost points.
3.Enable wet-hand suppression and water film filtering algorithms. The system automatically identifies large water stains and dew areas, shields invalid touch signals, and retains valid finger operations.
4.Dual-layer insulation barrier design is added to the sensor circuit, preventing moisture penetration into the wiring layer to avoid micro short circuits and abnormal fluctuation of capacitance values.
5.The TP, display screen and frame are fully sealed in all directions, blocking rainwater, moisture and damp air from penetrating into the device interior and preventing internal condensation and circuit corrosion.
What optimizations have we made in terms of anti-aging and durability?1.Adopting outdoor-grade UV-resistant polarizer with excellent anti-aging performance against ultraviolet rays, which effectively prevents fading, color degradation and washed-out picture quality caused by long-term sun exposure.
2.An anti-UV protective layer is added on the glass surface to filter ultraviolet rays, slow down the aging and oxidation of adhesive layers, optical glue and screen substrates, and fundamentally restrain overall screen yellowing.
3.Outdoor-specific yellowing-resistant OCA optical adhesive and shadowless glue are used to replace ordinary adhesives. They resist oxidation and yellowing under long-term high temperature and sunlight exposure, with no delamination or bubbling.
4.The housing is made of ABS+PC weather-resistant alloy blended with UV-resistant additives. It withstands high temperature and strong sunlight, and resists embrittlement, cracking and deformation.
5.The housing adopts a stress-relief design with reserved gaps for thermal expansion and contraction, preventing shell cracking and corner fractures caused by high-temperature sunlight exposure and day-night temperature differences.
FAQ1.Is the touchscreen readable under strong sunlight?Yes. It uses a 1000+ nits high-brightness LCD, full lamination, and AG+AR+AF coating to avoid whitening and ghosting, ensuring excellent outdoor visibility.
2.Does it work normally in rainy or humid conditions?Yes. With a high-density hydrophobic oleophobic coating, wide-temperature anti-interference IC, wet-hand & water-film suppression algorithm, and fully sealed structure, it remains stable in rain, dew, and high humidity.
3.Will the screen yellow, delaminate or fade after long-term sun exposure?No. It adopts UV-resistant polarizer, UV-protective glass, and yellowing-resistant OCA optical adhesive. The housing is also UV-stabilized, so no yellowing, delamination, or fading.
4.Will the housing crack or deform in high temperatures or large temperature differences?No. The enclosure uses UV-resistant ABS+PC material with a stress-relief design and reserved gaps for thermal expansion, preventing cracking, brittleness, and deformation.
5.Is it suitable for long-term outdoor or harsh industrial use?Absolutely. It is fully optimized for high-brightness display, waterproofing, precise touch, anti-UV performance, and structural reliability, making it ideal for long-term outdoor operation.
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