What are the differences between OLED screens and LCD screens？

OLED screens and LCD screens have significant differences in technical principles, display effects, energy consumption, lifespan and eye protection features. Youdaoplaceholder0 OLED uses self-luminous technology, with each pixel independently controlled, while LCD relies on the backlight layer to emit light ‌. This directly leads to their different performances in multiple dimensions. ‌

Technical principle

Youdaoplaceholder0 1.OLED (Organic Light-emitting Diode) ‌: Each pixel is made of organic materials and emits light directly when powered on, without the need for a backlight layer. When black is displayed, the pixels can be completely turned off to achieve a pure black effect. ‌

Youdaoplaceholder0 2.LCD (liquid crystal display) ‌: It relies on a backlight layer to provide the light source, and the liquid crystal molecules adjust the light transmittance. It displays colors in combination with a color filter. The backlight is always on. Even when black is displayed, there is light leakage and the contrast is relatively low.

Display effect

Youdaoplaceholder0 1. Contrast and black performance ‌: The contrast ratio of OLED can reach over one million, with deep blacks; The contrast ratio of LCDS is typically 1000:1 to 3000:1, with black tones tending towards gray. ‌

Youdaoplaceholder0 2. Color and color gamut ‌: OLED has a wide color gamut (such as over 100% DCI-P3) and vivid colors; LCD colors are more natural, and high-end models can approach the level of OLED through quantum dot technology. ‌

Youdaoplaceholder0 3. Response speed and refresh rate ‌: OLED has a response speed of microsecond level, supports high refresh rates (such as 120Hz), and has no trailing in dynamic images; The LCD response is relatively slow, and there are fewer high refresh rate models ‌.

Energy consumption and thickness

Youdaoplaceholder0 1. Energy consumption ‌ : OLED has low energy consumption when displaying dark content (for example, the power consumption of a black interface is only 10% of that of LCD), but it surges at high brightness. The LCD backlight is constant and the energy consumption changes gently.

Youdaoplaceholder0 2. Thickness and shape ‌ : OLED has a simple structure and can be made very thin (such as 0.1 millimeters), supporting flexible screens and foldable screens; The LCD is limited in form innovation due to its relatively thick backlight layer.