noun, noun which may take the genitive case particle 'no'
upper left; top left
Refers to the upper-left area or direction. Commonly used in spatial descriptions, maps, diagrams, and screen layouts.
Your current location is shown in the upper left of the map.
画面の左上にあるボタンを押してください。
Please press the button in the top left of the screen.
There is an icon in the upper-left of the screen.
Please place the photo in the upper-left corner.