Which risk increases when an LED matrix display operates continuously at high ambient temperature with inadequate airflow?

💡 Explanation

High ambient temperature affects radiative efficiency; therefore, the increased junction temperature accelerates phosphor degradation, causing `chromaticity coordinate shift`, because thermally driven degradation is far worse, rather than altered electrical properties within a normal operating range.

• Which risk increases when a robot arm's kinematics calculations omit joint compliance?
• Which mechanism limits forward current conduction in a p-n junction diode at very high frequencies?
• Which outcome occurs when reverse bias exceeds avalanche breakdown voltage in a tuned IMPATT diode?
• Which outcome complicates trajectory control when a robotic arm's joint encounters a kinematic singularity?
• Which outcome occurs when a hydraulic directional control valve experiences spool stiction at low temperatures?
• Which risk increases when a hydraulic actuator's return line lacks adequate back pressure, and its load rapidly decreases?