(c) The image below shows a schematic of a liquid crystal display (LCD) screen. Between the rear and front polarisers ar
Posted: Tue May 17, 2022 8:26 pm
(c) The image below shows a schematic of a liquid crystal display (LCD) screen. Between the rear and front polarisers are liquid crystals which can be switched 'on' by an electric field and thus the liquid crystals act as a polariser. Pixel Polarized Glass Liquid V Voltage Crystal Polarized Glass Backlight (1) Describe what a polaroid does? (2 marks) (ii) LCD screens use colour addition whereby only 3 colours are used to create all possible colours. Name the 3 colours used. (3 marks)