US2023176275A1PendingUtilityA1
Color Liquid Crystal Displays and Display Backlights
Est. expiryFeb 15, 2039(~12.5 yrs left)· nominal 20-yr term from priority
C09K 11/7731G02F 1/133509G02F 1/133614G02B 6/005C09K 11/675G02F 1/133611G02F 1/133606C09K 11/616G02F 1/133603C09K 11/886G02F 1/133521
71
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Claims
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.
Claims
exact text as granted — not AI-modifiedWhat is claimed is:
1 . 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.Join the waitlist — get patent alerts
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