Patent ID: 8269411
Filing Date: 2012-09-18
Classification: B82Y,C09K,G02F

Abstract:
1. A display device, comprising: an illumination unit having a light-emitting chip and a plurality of quantum dot phosphors, wherein the light-emitting chip emits light to excite the quantum dot phosphors to generate a color light, the color light has an optical spectrum having a first blue peak, a first green peak, and a first red peak, and at each peak value each peak has a respective wavelength, including a first blue peak wavelength, a first green peak wavelength, and a first red peak wavelength; and a color filter, disposed in a light path of the illumination unit, for filtering the color light, wherein a transmittance spectrum of the color filter has a second blue peak, a second green peak, and a second red peak, and at each peak value each peak has a respective wavelength, including a second blue peak wavelength, a second green peak wavelength, and a second red peak wavelength; wherein a ratio of the first blue peak wavelength to the second blue peak wavelength is between 0.96 and 1.04, a ratio of the first green peak wavelength to the second green peak wavelength is between 0.95 and 1.05, a ratio of the first red peak wavelength to the second red peak wavelength is between 0.82 and 1.21.