Liquid crystal display having high color saturation

Details Liquid crystal display having high color saturation Liquid crystal display having high color saturation

2011-05-31

2011-05-31

Briggs, Nathanael R (Department: 2871)

Liquid crystal cells, elements and systems

Particular structure

Particular illumination

C349S106000

Reexamination Certificate

active

07952657

ABSTRACT:
A liquid crystal display comprising a backlight module and a liquid crystal display panel is provided. The backlight module comprises a white point source that emits a spectrum of light comprising three peaks. The liquid crystal display panel comprises a liquid crystal layer disposed between a color filter substrate, which comprises a blue filter, a green filter and a red filter, and an opposite substrate. The color filter substrate and the backlight module satisfy the following formulas:∑555605⁢⁢BL⁡(λ)×CFRed⁡(λ)×Δλ≤6.0;(1)∑580630⁢⁢BL⁡(λ)×CFGreen⁡(λ)×Δλ≤3.5;(2)∑505580⁢⁢BL⁡(λ)×CFBlue⁡(λ)×Δλ≤3.5.(3)Herein, the backlight module has the maximum luminance in one wavelength, with the maximum luminance being set at 1.0. BL (λ) represents the normalized luminance spectrum at each wavelength. CFBlue(λ), CFGreen(λ) and CFRed(λ) represent the transmittance of light at each wavelength passing through the blue filter, the green filter, and the red filter respectively. Δλ is the wavelength interval.

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