Color Liquid Crystal Displays and Display Backlights
AssigneeIntematix Corporation
InventorsXianglong Yuan, Yi-Qun Li
Life of this patent
Estimating the term…
Abstract
There is provided a display backlight (604), including an excitation source (644) for generating blue light (650); and a wavelength converter (654) being a unitary construction including a combination of a wavelength selective filter layer (658) bonded to a photoluminescence layer (660), where the photoluminescence layer (658) includes a green photoluminescence material and a red photoluminescence material; and where the wavelength selective filter layer (658) is transmissive to blue light and reflective to green and red light.
Claims20
A display backlight, comprising:
- an excitation source for generating blue light;
- and
- a wavelength converter being a unitary construction comprising a combination of a wavelength selective filter layer bonded to a photoluminescence layer,
- wherein the photoluminescence layer comprises a green photoluminescence material and a red photoluminescence material;
- and
- wherein the wavelength selective filter layer is transmissive to blue light and is reflective to green and red light.
A wavelength converter for a display backlight, the wavelength converter being a unitary construction comprising a combination of a wavelength selective filter layer bonded to a photoluminescence layer,
- wherein the photoluminescence layer comprises a green photoluminescence material and a red photoluminescence material;
- and
- wherein the wavelength selective filter layer is transmissive to blue light and reflective to green and red light.
Dependencies are inferred from the claim text.