Apple inc. (20250004342). Waveguide Display with Sealed Tint Layer
Waveguide Display with Sealed Tint Layer
Organization Name
Inventor(s)
Zachary M. Beiley of Oakland CA US
Sean E. Doris of San Francisco CA US
Alexander D. Schlaupitz of Longmont CO US
Waveguide Display with Sealed Tint Layer
This abstract first appeared for US patent application 20250004342 titled 'Waveguide Display with Sealed Tint Layer
Original Abstract Submitted
an electronic device may include a display with a waveguide that directs image light to an eye box using an output coupler. the display may include an electrically adjustable tint layer overlapping the output coupler. the tint layer may serve to maximize contrast of images in the image light. the tint layer may include a peripheral edge seal between first and second substrates and laterally surrounding an electrochromic gel. the peripheral edge seal may protect the gel from water and oxygen. the peripheral edge seal may include one or more rings of material and/or a glass ring spacer, the substrates may include cavities, and/or the gel may include spacer beads to help minimize warpage upon curing and thus maximize flatness of the tint layer. the electrochromic gel may include first and second redox species and a third redox species configured to tune a color response of the tint layer.
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