US 12,436,433 B2
Electro-optical device comprising an electrostatic protection circuit provided at a wiring substrate and electronic apparatus
Nariya Takahashi, Chino (JP)
Assigned to SEIKO EPSON CORPORATION, Tokyo (JP)
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on Aug. 29, 2022, as Appl. No. 17/898,458.
Claims priority of application No. 2021-140761 (JP), filed on Aug. 31, 2021.
Prior Publication US 2023/0068861 A1, Mar. 2, 2023
Int. Cl. G02F 1/1362 (2006.01); G02F 1/1368 (2006.01)
CPC G02F 1/136204 (2013.01) [G02F 1/136286 (2013.01); G02F 1/1368 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An electro-optical device comprising:
an electro-optical panel provided with
a temperature-detecting element,
a first wiring electrically connected to the temperature-detecting element, and
a second wiring electrically connected to the temperature-detecting element; and
a wiring substrate provided with
a third wiring electrically connected to the first wiring,
a fourth wiring electrically connected to the second wiring,
an electrostatic protection circuit, and
a driving integrated circuit provided with a driving circuit, wherein
the electrostatic protection circuit is provided at the wiring substrate and is electrically connected to at least one of the third wiring and the fourth wiring,
the electrostatic protection circuit includes a first electrostatic protection circuit and a second electrostatic protection circuit,
the first electrostatic protection circuit is provided inside the driving integrated circuit and is electrically connected to at least one of the third wiring and the fourth wiring, and
the second electrostatic protection circuit is provided at the wiring substrate and is electrically connected to the third wiring and the fourth wiring.