US 9,811,188 B1
Display stack
Srivatsan Subbarayan, Sunnyvale, CA (US); Guneet Sethi, Freemont, CA (US); Anoop Menon, Capitola, CA (US); Shankar Ganapathysubramanian, Cupertino, CA (US); Jorge Ferrer Pont, Menlo Park, CA (US); Weihsin Hou, Fremont, CA (US); Christopher Thomas Li, Mountain View, CA (US); and Gregory Turner Witmer, Portola Valley, CA (US)
Assigned to Amazon Technologies, Inc., Seattle, WA (US)
Filed by Amazon Technologies, Inc., Seattle, WA (US)
Filed on Dec. 23, 2014, as Appl. No. 14/581,877.
Int. Cl. G06F 3/041 (2006.01); G06F 3/044 (2006.01); G02F 1/136 (2006.01); G02F 1/137 (2006.01); F21V 9/14 (2006.01); G02F 1/167 (2006.01); F21V 8/00 (2006.01); G06F 1/16 (2006.01)
CPC G06F 3/0412 (2013.01) [G02B 6/0011 (2013.01); G02F 1/167 (2013.01); G06F 1/169 (2013.01); G06F 2203/04104 (2013.01); G06F 2203/04112 (2013.01)] 24 Claims
OG exemplary drawing
 
1. An electronic device comprising;
a display stack including:
a coverglass with a top surface and a bottom surface, the top surface of the coverglass being etched to impart antiglare properties;
a touch layer contacted with the bottom surface of the coverglass;
a lightguide positioned beneath the coverglass and configured to receive light from a light source located adjacent to the lightguide;
a first optically clear adhesive (OCA) layer disposed between the bottom surface of the coverglass and a top surface of the lightguide, the first OCA layer including an acrylic OCA with a predetermined luminous transmittance rating and a silicone OCA with a predefined refractive index;
an electrophoretic display component positioned beneath the lightguide, the electrophoretic display component configured to display content;
a second OCA layer disposed between the lightguide and the electrophoretic display component; and
a ring adhesive disposed around an outer edge of the display stack, the ring adhesive extending from the top surface of the coverglass downward to a bottom surface of the lightguide;
a midframe disposed below the display stack; and
one or more elastically deformable foam components disposed between at least a portion of a bottom surface of the display stack and corresponding portions of a top surface of the midframe.