noun
additive color mixing
Technical term in color science; refers to mixing colored lights (e.g., red, green, blue) to produce other colors, as in displays.
テレビやスマホの画面は加法混色で色を表現している。
TV and smartphone screens produce colors using additive color mixing.
Subtractive color mixing (e.g., mixing paints or inks), where colors are produced by absorbing (subtracting) certain wavelengths of light.
Compound of 加法 (kahō, 'addition') and 混色 (konshoku, 'color mixing'), directly translating the English term 'additive color mixing'.