Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
November 30, 2021
0Patent Application Number
167126070
Date Filed
December 12, 2019
0Patent Primary Examiner
Patent abstract
Sidewall reflectors disposed on the sidewalls of an LED or pcLED comprise porous (for example, hollow) high refractive index light scattering particles dispersed in a transparent binder. The porous particles exhibit a high refractive index contrast and corresponding strong scattering at the interfaces between the porous particle material and one or more air-filled voids in each particle. These sidewall reflectors can provide light confinement with thin reflector structures, allowing close spacing between LEDs and pcLEDs, and may be advantageously employed in microLED arrays.
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