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US 11,448,925 B2Granted
Electro-optical device and electronic apparatus
AssigneeSeiko Epson Corporation
InventorShinsuke Fujikawa
Life of this patent
Estimating the term…
Abstract
An electro-optical device includes a first FPC substrate and a second FPC substrate that overlap each other and are mounted on a terminal portion. A monitor pad electrically coupled to an output terminal of a second driving IC is provided at a substrate surface of the second FPC substrate of a substrate surface of the first FPC substrate and a substrate surface of the second FPC substrate that face each other. An opening extending through the first FPC substrate is provided in a position overlapping the monitor pad. A monitor pad electrically coupled to an output terminal of a first driving IC is provided between an opening of the first FPC substrate and the first driving IC.
Claims15
An electro-optical device, comprising:
- an electro-optical panel including a first terminal group and a second terminal group for external coupling that are provided in order from an end portion of the electro-optical panel to a first direction at an interval;
- a first flexible wiring substrate electrically coupled to the first terminal group, and at which a first driving IC is mounted;
- and
- a second flexible wiring substrate that overlaps the first flexible wiring substrate, and is electrically coupled to the second terminal group, and at which a second driving IC is mounted, wherein
- one of the first flexible wiring substrate or the second flexible wiring substrate includes a monitor pad electrically coupled to at least one of a plurality of output terminals of the first driving IC or the second driving IC, and the other of the first flexible wiring substrate or the second flexible wiring substrate includes an opening provided in a position overlapping the monitor pad.
2 more elements
An electro-optical device, comprising:
- an electro-optical panel including a first terminal group and a second terminal group for external coupling that are provided in order from an end portion of the electro-optical panel to a first direction at an interval;
- a first flexible wiring substrate electrically coupled to the first terminal group, and at which a first driving IC is mounted;
- and
- a second flexible wiring substrate that overlaps the first flexible wiring substrate, and is electrically coupled to the second terminal group, and at which a second driving IC is mounted,
- wherein the second flexible wiring substrate includes a second monitor pad electrically coupled to at least one of a plurality of output terminals of the second driving IC, and
- wherein the first flexible wiring substrate includes a first opening provided in a position overlapping the second monitor pad, and a first monitor pad electrically coupled to at least one of a plurality of output terminals of the first driving IC is provided between the first opening of the first flexible wiring substrate and the first driving IC.
3 more elements
An electro-optical device, comprising:
- an electro-optical panel including a first terminal group and a second terminal group for external coupling that are provided in order from an end portion of the electro-optical panel to a first direction at an interval;
- a first flexible wiring substrate electrically coupled to the first terminal group, and at which a first driving IC is mounted;
- and
- a second flexible wiring substrate that overlaps the first flexible wiring substrate, and is electrically coupled to the second terminal group, and at which a second driving IC is mounted, wherein
- one of the first flexible wiring substrate or the second flexible wiring substrate includes a monitor pad electrically coupled to at least one of a plurality of output terminals of the first driving IC or the second driving IC, and the other of the first flexible wiring substrate or the second flexible wiring substrate includes a notch portion is provided in a position overlapping the monitor pad.
2 more elements
An electro-optical device, comprising:
- an electro-optical panel including a first terminal group and a second terminal group for external coupling that are provided in order from an end portion of the electro-optical panel to a first direction at an interval;
- a first flexible wiring substrate electrically coupled to the first terminal group, and at which a first driving IC is mounted;
- and
- a second flexible wiring substrate that overlaps the first flexible wiring substrate, and is electrically coupled to the second terminal group, and at which a second driving IC is mounted,
- wherein the second flexible wiring substrate includes a second monitor pad electrically coupled to at least one of a plurality of output terminals of the second driving IC, and
- wherein the first flexible wiring substrate includes a first notch portion provided in a position overlapping the second monitor pad, and a first monitor pad electrically coupled to at least one of a plurality of output terminals of the first driving IC is provided between the first notch portion of the first flexible wiring substrate and the first driving IC.
3 more elements
Dependencies are inferred from the claim text.