US 12,396,341 B2
Enlarging active areas of displays in electronic devices
Chun-Yen Liu, Zhubei (TW); Chiaching Chu, New Taipei (TW); and Ion Bita, Los Altos, CA (US)
Assigned to Google LLC, Mountain View, CA (US)
Filed by Google LLC, Mountain View, CA (US)
Filed on Jan. 29, 2024, as Appl. No. 18/426,046.
Claims priority of provisional application 63/486,593, filed on Feb. 23, 2023.
Prior Publication US 2024/0290272 A1, Aug. 29, 2024
Int. Cl. H10K 59/131 (2023.01); G09G 3/3233 (2016.01); H10K 59/123 (2023.01); H10K 59/126 (2023.01); G09G 3/3241 (2016.01)
CPC H10K 59/131 (2023.02) [G09G 3/3233 (2013.01); G09G 3/3241 (2013.01); G09G 2300/0426 (2013.01); G09G 2300/0876 (2013.01); G09G 2320/0209 (2013.01); G09G 2320/0219 (2013.01); G09G 2320/0233 (2013.01); H10K 59/123 (2023.02); H10K 59/126 (2023.02)] 21 Claims
OG exemplary drawing
 
14. A wearable device comprising:
a housing;
one or more processors disposed within the housing; and
a display operably coupled to the one or more processors and at least partially disposed within the housing, the display comprising:
a cover layer positioned as a topmost layer, the cover layer including an opaque border having an outer diameter and an inner diameter;
an electroluminescent layer positioned underneath the cover layer and configured to emit light when a voltage is applied across a cathode and an anode;
a transistor configured to control an electrical activation of the electroluminescent layer by controlling the voltage across the cathode and the anode;
driving circuitry positioned underneath the cover layer and operatively coupled to the transistor, the driving circuitry configured to control the transistor;
a routing line connected to an electrode of the transistor; and
a routing metal operatively coupling the anode of the electroluminescent layer to the routing line, the routing metal extending from the routing line above at least portions of the driving circuitry, and
the electroluminescent layer disposed above the at least portions of the driving circuitry such that the electroluminescent layer is positioned between the cover layer and the driving circuitry, and a thickness between the inner diameter and the outer diameter based on a placement of the electroluminescent layer above the at least portions of the driving circuitry.