Patent ID: 8591054

Claim:
A display device, comprising: a backlight module for generating an output light, wherein the output light has an emitting spectrum function BL(λ) corresponding to a wave length λ; and a color resist layer having a blue resist unit, a green resist unit, a red resist unit, and a white resist unit, respectively formed on the backlight module, for filtering the output light generated by the backlight module; wherein with respect to the wave length λ, the blue resist unit has a blue light transmission spectrum function B(λ), the green resist unit has a green light transmission spectrum function G(λ), the red resist unit has a red light transmission spectrum function R(λ), the white resist unit has a white light transmission spectrum function W(λ); wherein the color resist layer has an index function S(λ): S ⁡ ( λ ) = R ⁡ ( λ ) * BL ⁡ ( λ ) + G ⁡ ( λ ) * BL ⁡ ( λ ) + B ⁡ ( λ ) * BL ⁡ ( λ ) W ⁡ ( λ ) * BL ⁡ ( λ ) , wherein 380 nm<λ<780 nm; wherein the index function S(λ) has an interval maximum value in the wave length between 480 nm and 580 nm, wherein the interval maximum value is between 1.1 and 1.2.