What is the difference between OLED and LED display screens?

1、 Luminous principle

OLED: OLED is an abbreviation for "Organic Light Emitting Diode". It uses organic light emitting diode technology, and each pixel can emit light on its own without the need for a backlight. It emits light by driving an organic thin film with current.

LED: LED is an abbreviation for "Light Emitting Diode", which uses inorganic semiconductor materials. LED display screens have a light-emitting layer composed of multiple red light-emitting diodes that require a backlight source to form an image by controlling the brightness and color of the semiconductor light-emitting diodes.

2、 Structure and thickness

OLED: The structure of OLED screens is relatively simple, as they do not require a backlight layer and can be made very thin, with a thickness of less than 1cm. In addition, OLED panels also have the characteristic of being bendable.

LED: The structure of LED screens is relatively complex, consisting of multiple layers including light-emitting layer, liquid crystal layer, backlight layer, etc., making them relatively thick.

3、 Display effect

OLED: OLED's colors are more prominent and can reach NTSC 100%, meeting high color gamut requirements such as BT.2020. However, OLED may experience issues with color temperature and color cast. Due to the independent controllability of each pixel, OLED can achieve pure black, high contrast, and delicate display effects.

LED: LED screens can generally achieve a color gamut of NTSC 72%, with rich and vivid colors. The normal service life can reach 50000 to 100000 hours, and the brightness is high. The brightness of the outdoor display screen is greater than 8000mcd/m ², and the viewing angle is large. The indoor viewing angle can be greater than 160 degrees, and the outdoor viewing angle can be greater than 120 degrees. In addition, the splicing of LED display screens is seamless, and the full screen display effect is good.

4、 Application Fields

OLED: Due to its lightweight, bendable, and vibrant colors, OLED screens are only 55 inches in size and are more suitable for small and medium-sized panels. They are widely used in portable electronic devices such as smartphones and tablets. OLED has lower power consumption and is more energy-efficient.

LED: LED displays are more suitable for large-sized and outdoor applications. Its high brightness, long lifespan, and seamless splicing make it the preferred choice for outdoor billboards, large sports venues, and other occasions.