Screen size: Usually ranges between 18.5 to 20 inches. Aspect ratio: Width to height comes in a 16:9 ratio (widescreen suitable for daily viewing and browsing). Resolution: Usually comes with a resolution of 1366 × 768 pixels (HD) or 1600 × 900 pixels (HD+). Lighting and backlight type: Energy-saving LED Backlit LCD technology. Rear ports: Primarily contains the traditional analog VGA port, and some models may include a digital DVI-D port. Refresh rate and response time: Standard 60Hz refresh rate with a response time of up to 5ms, which is excellent for daily tasks, studying, and office work. Screen features: Anti-glare and anti-reflection coating for greater eye comfort during long use. For 100% accurate technical specifications, please check the white sticker on the back of the screen; you will find the full model name (Model No) there, such as (W1972a or V197, etc.) to accurately know its detailed specifications. For offers, may God bless everyone 👍