Display device and method for manufacturing display device
AssigneeJapan Display Inc.
InventorNaohisa ANDOU
Life of this patent
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Abstract
A display device includes a substrate; a plurality of pixels on the substrate; a drive circuit on the substrate; a first terminal and a second terminal connected to the pixels or the drive circuit and arranged on the substrate; a first wiring having a first end part connected with the first terminal, and a second end part located on an end part of the substrate; a second wiring having a third end part connected with the second terminal, and a fourth end part located on an end part of the substrate; a first current blocking unit blocking a current flowing in a direction from the second end part to the first end part of the first wiring; and a second current blocking unit blocking a current flowing in a direction from the fourth end part to the third end part of the second wiring.
Claims17
A display device comprising:
- a substrate;
- a plurality of pixels on the substrate;
- a drive circuit on the substrate;
- a first terminal and a second terminal which are electrically connected to the pixels or the drive circuit and are arranged on the substrate;
- a first wiring having a first end part electrically connected with the first terminal, and a second end part located on an end part of the substrate;
- a second wiring having a third end part electrically connected with the second terminal, and a fourth end part located on an end part of the substrate;
- a first current blocking unit blocking a first current flowing in a direction from the second end part to the first end part of the first wiring;
- and
- a second current blocking unit blocking a second current flowing in a direction from the fourth end part to the third end part of the second wiring.
A manufacturing method of a display device, the display device comprising a pixel region arranged with a plurality of pixels, a substrate having a terminal part arranged with a plurality of terminals, and a current blocking unit between each of the plurality of terminals and an end part of the substrate, the current blocking unit blocking a current flowing to the terminal, the method comprising:
- forming a first transistor in the pixel region;
- forming a second transistor, a third transistor, a fourth transistor and a fifth transistor in the current blocking unit;
- forming a first terminal and a second terminal in the terminal part;
- forming a first wiring electrically connected to the first transistor, a second wiring electrically connected to the first terminal and the second transistor, a third wiring electrically connected to the second transistor and the third transistor, a fourth wiring electrically connected to the third transistor and the fourth transistor, a fifth wiring electrically connected to the fourth transistor and the fifth transistor, and a sixth wiring electrically connected to the fifth transistor and the second terminal;
- forming a light emitting element electrically connected with the first transistor;
- and
- cutting the substrate with a laser and dividing the fourth wiring.
A manufacturing method of a display device, the display device comprising a substrate having a first terminal and a second terminal adjacent to each other, a first current blocking unit between the first terminal and an end part of the substrate, the first current blocking unit blocking a current flowing to the first terminal, and a second current blocking unit located between the second terminal and the end part of the substrate, the second current blocking unit blocking a current flowing to the second terminal, the method comprising:
- forming a second transistor and a third transistor in the first current blocking unit;
- forming a fourth transistor and a fifth transistor in the second current blocking unit;
- forming, a second wiring electrically connected to the first terminal and the second transistor, a third wiring electrically connected to the second transistor and the third transistor, a fourth wiring electrically connected to the third transistor and the fourth transistor, a fifth wiring electrically connected to the fourth transistor and the fifth transistor, and a sixth wiring electrically connected to the fifth transistor and the second terminal;
- and
- cutting the substrate between the first current blocking unit and the end part, and between second current blocking unit and the end part and dividing the fourth wiring.
Dependencies are inferred from the claim text.