On major digital forums and social media platforms, whenever new smartphones are released, comments like “OLED screens are eye-straining” and “blindness-inducing screens” frequently appear, with many users even proclaiming “LCD forever reigns supreme.” But are OLED screens really as detrimental as rumors suggest? This article will provide an in-depth analysis of the technical differences between OLED and LCD screens and explore their actual impact on visual health.
OLED (Organic Light-Emitting Diode) display technology utilizes a self-illuminating principle, eliminating the need for a backlight module. This allows screen thickness to be controlled within 1 millimeter, making it approximately two-thirds thinner than traditional LCD screens. This technology not only achieves wider viewing angles and more vibrant color performance but also significantly reduces power consumption, making it the preferred choice for high-end smartphones, TVs, and other devices. Its unique flexible characteristics have further driven the development of curved screens and under-display fingerprint technology, fully demonstrating OLED’s important role in modern electronic devices.
However, some users report experiencing visual fatigue more easily when viewing OLED screens, which is primarily related to the screen dimming method. LCD screens typically use DC dimming, which adjusts backlight brightness to achieve flicker-free display. In contrast, most OLED devices employ PWM (Pulse Width Modulation) dimming technology, which regulates brightness by rapidly switching pixels on and off. In low-brightness environments, this periodic bright-dark cycling may cause eye discomfort for sensitive individuals.
From a visual comfort perspective, both technologies have their own advantages: OLED’s pure black background and high contrast can reduce the burden on eye adjustment, making it particularly suitable for use in dark environments. Meanwhile, LCD’s uniform backlight provides an advantage during prolonged text reading. Professionals recommend that sensitive users opt for LCD screens with DC dimming or OLED devices with high-frequency PWM dimming, while users with strong color requirements should prefer OLED products equipped with DC/high-frequency PWM technology.
Overall, simply concluding that “OLED is more harmful to the eyes” is biased. When purchasing devices, consumers should refer to specific test reports from professional technology evaluation agencies and make choices based on their own usage habits and visual sensitivity.
Post time: Sep-29-2025