Ambient light sensor system having light-scattering desiccant

An ambient light sensor system may be mounted in alignment with a window in a display cover layer associated with a display in an electronic device. The ambient light sensor system may have a light diffuser layer and an infrared-light-blocking filter. The light diffuser layer may have a polymer laye...

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Bibliographic Details
Main Author Nayak, Aditya B
Format Patent
LanguageEnglish
Published 05.03.2019
Subjects
ADVERTISING
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION
COLORIMETRY
CRYPTOGRAPHY
DISPLAY
EDUCATION
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT
MEASURING
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
RADIATION PYROMETRY
SEALS
TESTING
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Summary:An ambient light sensor system may be mounted in alignment with a window in a display cover layer associated with a display in an electronic device. The ambient light sensor system may have a light diffuser layer and an infrared-light-blocking filter. The light diffuser layer may have a polymer layer with embedded light-scattering desiccant particles. An ambient light sensor in the ambient light sensor system may receive ambient light through the light diffuser layer and the infrared-light-blocking filter. The infrared-light-blocking filter may have a polymer substrate and a thin-film interference filter formed from a stack of inorganic thin-film layers on the polymer substrate. Light-scattering desiccant particles may be incorporated into the polymer substrate of the infrared-light-blocking filter. Desiccant may also be incorporated into ambient light sensor support structures.
Bibliography:Application Number: US201615384102