Display device
View Patent ↗According to one embodiment, a display device includes a display panel including a first insulating substrate, a first electrode disposed above the first insulating substrate, an IC chip electrically connected to the first electrode, a first terminal electrically connected to the IC chip, and a wiring substrate including a base including a first surface and a second surface on a side opposite to the first surface, a second terminal which is disposed on the first surface and is electrically connected to the first terminal, and an electromagnetic shielding layer which is disposed on the second surface and covers at least a part of the IC chip.
1. A display device comprising:
a display panel comprising a first insulating substrate, a first electrode disposed on the first insulating substrate, an IC chip electrically connected to the first electrode, a first terminal electrically connected to the IC chip; and
a wiring substrate comprising a base including a first surface and a second surface opposite to the first surface, a second terminal disposed on the first surface and electrically connected to the first terminal, and an electromagnetic shielding layer disposed on the second surface and covering at least a part of the IC chip, wherein
the display panel further comprises a second insulating substrate opposed to the IC chip in a direction,
the electromagnetic shielding layer includes a first end portion located between the IC chip and the second insulating substrate in the direction, and
the base includes a second end portion closer to the second insulating substrate than the first end portion in the direction.
2. The display device of claim 1 , wherein the electromagnetic shielding layer covers a whole of an upper surface of the IC chip.
3. The display device of claim 1 , wherein a length of the electromagnetic shielding layer from the first end portion to a portion covering an upper surface of the IC chip is less than a height of the IC chip.
4. The display device of claim 1 , wherein:
the wiring substrate further comprises an overcoat layer covering the electromagnetic shielding layer; and
the overcoat layer includes a third end portion closer to the second insulating substrate than the first end portion in the direction.
5. The display device of claim 1 , wherein the electromagnetic shielding layer covers a side surface of the IC chip opposed to the second insulating substrate.
6. The display device of claim 1 , wherein:
the first insulating substrate includes a first plane, a second plane opposite to the first plane, and a third plane opposite to the first plane;
a thickness between the first plane and the second plane is greater than a thickness between the first plane and the third plane;
the first terminal is disposed on the second plane; and
the wiring substrate further comprises a first conductive layer connecting with the second terminal, and an insulating cover covering the first conductive layer and being in contact with the third plane.
7. The display device of claim 6 , wherein the third plane is formed over a whole of a first side of the display panel.
8. The display device of claim 1 , wherein:
the wiring substrate is folded toward a back surface of the display panel.
9. The display device of claim 1 , wherein:
the base includes a first region in which the second terminal is disposed, a second region located on a back surface side of the display panel, and a third region located between the first region and the second region; and
the wiring substrate comprises conductive layers, a number of the conductive layers in the third region being fewer than a number of the conductive layers in the second region.
10. The display device of claim 1 , wherein:
the base includes a first region in which the second terminal is disposed, a second region located on a back surface side of the display panel, and a third region located between the first region and the second region; and
the wiring substrate further comprises a first conductive layer connecting with the second terminal, and a second conductive layer located between the first conductive layer and the electromagnetic shielding layer; and
the second conductive layer is disposed in the third region, and is not disposed in the second region.
11. A display device comprising:
a display panel comprising a first insulating substrate, a first electrode disposed on the first insulating substrate, an IC chip electrically connected to the first electrode, and a first terminal electrically connected to the IC chip; and
a wiring substrate comprising a base including a first surface and a second surface opposite to the first surface, a second terminal disposed on the first surface and electrically connected to the first terminal, and an electromagnetic shielding layer disposed on the second surface and covering at least a part of the IC chip, wherein
the display panel further comprises a second insulating substrate opposed to the IC chip in a direction,
the electromagnetic shielding layer includes a first end portion located between the IC chip and the second insulating substrate in the direction,
the wiring substrate further comprises an overcoat layer covering the electromagnetic shielding layer, and
the overcoat layer includes a third end portion closer to the second insulating substrate than the first end portion in the direction.
12. The display device of claim 11 , wherein the electromagnetic shielding layer covers a whole of an upper surface of the IC chip.
13. The display device of claim 11 , wherein a length of the electromagnetic shielding layer from the first end portion to a portion covering an upper surface of the IC chip is less than a height of the IC chip.
14. The display device of claim 11 , wherein the electromagnetic shielding layer covers a side surface of the IC chip opposed to the second insulating substrate.
15. The display device of claim 11 , wherein:
the first insulating substrate includes a first plane, a second plane opposite to the first plane, and a third plane opposite to the first plane;
a thickness between the first plane and the second plane is greater than a thickness between the first plane and the third plane;
the first terminal is disposed on the second plane; and
the wiring substrate further comprises a first conductive layer connecting with the second terminal, and an insulating cover covering the first conductive layer and being in contact with the third plane.
16. The display device of claim 15 , wherein the third plane is formed over a whole of a first side of the display panel.
17. The display device of claim 11 , wherein:
the wiring substrate is folded toward a back surface of the display panel.
18. The display device of claim 11 , wherein:
the base includes a first region in which the second terminal is disposed, a second region located on a back surface side of the display panel, and a third region located between the first region and the second region; and
the wiring substrate comprises conductive layers, a number of the conductive layers in the third region being fewer than a number of the conductive layers in the second region.
19. The display device of claim 11 , wherein:
the base includes a first region in which the second terminal is disposed, a second region located on a back surface side of the display panel, and a third region located between the first region and the second region;
the wiring substrate further comprises a first conductive layer connecting with the second terminal, and a second conductive layer located between the first conductive layer and the electromagnetic shielding layer; and
the second conductive layer is disposed in the third region, and is not disposed in the second region.