high image quality; high resolution
Used for displays, cameras, video, and digital images. Often contrasted with 低画質 (low quality).
このテレビは高画質で映画を楽しめる。
This TV lets you enjoy movies in high image quality.
高画質の写真を撮るには良いレンズが必要だ。
To take high-quality photos, you need a good lens.
This camera can record video in high image quality.
You can download high-quality photos from this site.
高精細 emphasizes fine detail and clarity (as in 'high-definition'), whereas 高画質 is the general everyday term for good picture quality.
Compound of 高 (high) and 画質 (image quality).