Specifications:
| Viewing Angle |
89 Typ. |
| Support Color |
16.7M / 262K |
| Transmittance |
＞85% |
| Touch Report Rate |
≥100Hz |
| Touch Response Time |
≤25ms |
| Controller Interface |
USB Typ. |
| Support Touch Points |
10 points Typ. |
| Impact resistance |
≥IK07 |
| Ink adhesion |
≥4B |
| Cover surface hardness |
≥6H |
1.An aluminum alloy heat insulation cavity is added outside the complete screen assembly, filled with high-temperature-resistant aerogel insulation cotton inside. It blocks direct heat transfer from sun-baked cab sheet metal to the touch module and prevents temperature rise caused by direct sunlight exposure.
2.The assembly integrates low-power high-temperature resistant cooling fans and thermal copper foils closely attached to heat sources including the touch IC, driver board and backlight. When the cab is shut down and idle, the system can link with vehicle windows for ventilation heat dissipation. During operation, it continuously draws heat away from chips, keeping the core temperature of the module below 60°C.
3.An integrated metal sun visor on the top of the screen blocks direct intense sunlight. The cover glass is coated with high-temperature-resistant UV-blocking AR film, which reduces heat converted from light energy and delays high-temperature aging of glass and coating layers.
4.A ventilation gap of more than 10 mm is reserved between the screen and cab sheet metal to cut off metal heat conduction. The base adopts glass fiber high-temperature resistant insulating brackets to prevent heat from being directly conducted into the display and touch module.
5.Adopting automotive-grade PCAP touch chip with wide temperature range of -40℃~85℃, equipped with built-in dynamic temperature compensation circuit. It collects chip temperature data in real time and automatically calibrates capacitance baseline to restrain temperature drift under high temperature, preventing massive coordinate offset and random ghost points under ambient temperature up to 75℃.
6.The FPC uses thickened PI substrate matched with 200℃ high-temperature resistant pressure-sensitive adhesive, replacing ordinary low-temperature adhesive, so it will not delaminate or warp under high temperature.
7.High-temperature stable ITO conductive glass and high-temperature resistant silver paste circuits are adopted. The resistance will not fluctuate drastically under prolonged high-temperature environments, preventing touch failure caused by circuit impedance drift at high temperatures.
How to Solve Aging Problems Caused by Long-Term Outdoor High-Temperature Sun Exposure1.The inner and outer surfaces of the cover glass are vacuum-deposited with multi-layer anti-reflection AR films featuring powerful UV resistance. UV-absorbing particles are embedded within the film layers, blocking over 99% of UVA and UVB rays from penetrating the glass. This prevents ultraviolet radiation from directly damaging internal components including backlight units, optical bonding adhesive and FPC auxiliary materials.
2.The glass raw material is doped with UV-stabilized metal ions, which resist oxidation and yellowing under ultraviolet irradiation, preventing the glass body from turning turbid after long-term sun exposure.
3.UV stabilizers and antioxidants are added into materials. The components will not turn yellow, become brittle or precipitate small molecular grease that contaminates optical layers under long-term outdoor sunlight exposure. Recycled plastic substrates prone to aging are eliminated entirely.
4.
The reflective film, diffusion film and brightness enhancement film all adopt outdoor-grade UV-resistant optical films with built-in anti-UV coatings, which prevent yellowing and color spots on the backlight layer. The backlight buffer foam is replaced with closed-cell UV-resistant silicone foam, eliminating EVA and ordinary PU foam that suffer yellowing and shrinkage in a short period of time.
5.Light-shielding silicone baffles are installed around the liquid crystal backplane to block ultraviolet rays invading the backlight cavity from the side, reducing oxidation and aging of internal optical accessories.
6.
Instead of ordinary indoor OCA optical adhesive, UV absorbers and antioxidants are blended into the adhesive formula. It resists yellowing and degradation under long-term sunlight exposure with stable bonding strength that does not decline. No air bubbles remain after vacuum full lamination, and no interlayer separation or partial bubbling occurs under UV radiation.
7.The FPC backing adhesive and reinforcing adhesive are replaced with industrial UV-resistant acrylic double-sided tape with a weather resistance grade above UV500. It will not pulverize or lose adhesion under long-term UV irradiation, eliminating edge warping and delamination between the FPC, touch glass and backplane caused by failed adhesive. The FPC gold fingers are fully encapsulated with UV-resistant epoxy sealant to isolate both ultraviolet rays and moisture corrosion.
8.The driver board monitors backlight attenuation and screen yellow color shift in real time, and automatically calibrates the RGB grayscale curve to compensate for yellowish image caused by yellowed glue frames and optical films, delaying visible aging to human eyes.
FAQ
1.Q: How to stop UV rays from damaging internal bonding glue, FPC and backlight parts for outdoor equipment?
A: Multiple UV blocking solutions work together. The cover glass is doped with UV-stable metal ions and coated with multi-layer UV-blocking AR film to block over 99% UVA/UVB. Silicone light baffles around the LCD backboard block lateral UV penetration. UV absorbers and antioxidants are added into OCA optical adhesive, FPC tape and backlight silicone foam to prevent internal accessories from UV oxidation.
2.Q: Why does the touch screen glass not turn yellow or turbid after years of sun exposure?
A: Two core designs avoid glass yellowing. First, UV-stabilized metal ions are mixed into the glass raw material to resist UV oxidation. Second, inner and outer multi-layer AR films with embedded UV absorbent particles block most ultraviolet light, so the glass substrate will not discolor and turn cloudy under long-term strong sunlight.
3.Q: What materials replace ordinary aging-prone plastic and foam for outdoor backlight components?
A: All vulnerable parts are upgraded to outdoor UV-resistant grades. Reflective/diffusion/brightness films are outdoor anti-UV optical films; buffer foam is closed-cell UV-resistant silicone foam instead of yellow-prone EVA/PU foam. Recycled plastic substrates are completely discarded, and UV stabilizers & antioxidants are added to all plastic structural parts to prevent brittleness and oil precipitation.
4.Q: How to solve FPC peeling, delamination and gold finger oxidation under outdoor UV exposure?
A: FPC backing and reinforcing tape use UV500+ industrial acrylic double-sided adhesive that never pulverizes or detaches under UV. Gold fingers are fully encapsulated with UV-resistant epoxy sealant to block UV and moisture. Meanwhile, high-temperature thickened PI FPC substrate with 200°C heat-resistant adhesive avoids warping and layering from heat and ultraviolet rays.
5.Q: Can the display still show normal colors after internal optical films and OCA glue gradually turn yellow over time?
A: Yes. The driver board monitors backlight attenuation and yellow color shift in real time, automatically calibrating RGB grayscale curves to offset yellow tint from aged optical films and adhesive frames. This greatly delays obvious yellow aging visible to users and maintains consistent display effect for long-term outdoor use.
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