USE OF A WAVELENGTH CONVERTING MATERIAL TO PROJECT AN IMAGE OR BACKLIGHTING THROUGH A DISPLAY PANEL, AND BACKLIGHT FOR EXCITING SAME

摘要

A display device and a backlight are provided to reduce overhead by using a wavelength converting material. A display panel(102) includes an interface receiving a control signal defining at least one main image transmitted from itself. A wavelength converting material absorbs light of a first wavelength, and emits light of a second wavelength. A light source(104) emits light of the first wavelength to the wavelength converting material. The wavelength converting material defines an auxiliary image transmitted from the display panel when illuminated by light of the first wavelength. The wavelength converting material is displayed on the display panel.