How to Accurately and Effectively Diagnose LCD Flickering Issues in Rail Transit Display Screens?

How to Accurately and Effectively Diagnose LCD Flickering Issues in Rail Transit Display Screens?

In the rail transit scenario,LCD rail transit display screens are widely used in information display systems due to their advantages of high brightness, low power consumption, and long lifespan. However, some users have reported a phenomenon known as “screen flicker,” where the image exhibits periodic brightness changes or shaking. Is this issue solely caused by … Read more

Implementing a Flashlight with ESP32: From Human Eye Persistence of Vision to Code Logic Analysis

Implementing a Flashlight with ESP32: From Human Eye Persistence of Vision to Code Logic Analysis

Effect Demonstration Persistence of Vision and Flicker Perception: Why Delay Matters? 🤔 In our daily lives, we are often captivated by some magical visual phenomena👀: waving glow sticks at night can create continuous light trails in the air✨; old televisions display frames one by one, yet we perceive them as smooth animations🎞️. Behind these fascinating … Read more

OLED vs. LCD Screens: Which is More Straining on the Eyes? A Philosophical Reflection on Light and Vision

OLED vs. LCD Screens: Which is More Straining on the Eyes? A Philosophical Reflection on Light and Vision

   In the digital age, screens have become an extension of human senses. As we gaze at the two mainstream display technologies, OLED and LCD, the debate of “which is more straining on the eyes” has never ceased. The answer is not black and white, but hidden within the wavelengths of light, the rhythm of … Read more

Don’t Be Fooled by High Resolution: OLED Screens Can Hurt Your Eyes

Don't Be Fooled by High Resolution: OLED Screens Can Hurt Your Eyes

Recently, more and more flagship smartphones have adopted OLED screens. However, while the visual effect is enhanced, OLED screens can actually be more harmful to the eyes compared to traditional LCD screens. OLED screens use organic light-emitting materials. Due to inherent reasons, most of them utilize PWM dimming, which continuously turns the screen on and … Read more