IP Library › Granted Patent US 9,924,618
Granted Patent B2
US 9,924,618 · App. 13/939,607 · Granted Mar 20, 2018

Conductive film and display apparatus provided with same

Inventors: Tadashi Kuriki (Ashigarakami-gun, JP); Kazuchika Iwami (Ashigarakami-gun, JP)
Assignee: FUJIFILM Corporation
H05K9/00G06F3/044H05K9/0096G06F2203/04112
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Quick Facts
Patent No.
US 9,924,618
App. No.
13/939,607
Granted
Mar 20, 2018
Kind
B2
Abstract

The present invention discloses a conductive film and a display apparatus provided with the conductive film. A conductive film is disposed on a display panel of a display apparatus, and has a base body, and a conductive section formed on one of the main surfaces of the base body. The conductive section has a mesh pattern composed of fine metal lines, and the fine metal lines have a tilt of 30-44° with respect to the alignment direction of pixels of the display apparatus.

Claims (114)

1. A conductive film comprising,

a substrate, and

a conductive part disposed on one main surface of the substrate, wherein

the conductive part contains two or more conductive patterns composed of a thin metal wire,

the conductive patterns extend in a first direction and are arranged in a second direction perpendicular to the first direction,

the conductive patterns each contain two large lattices formed with a combination of two or more small lattices, wherein the two large lattices are electrically joined in the first direction with a medium lattice, and the medium lattice has a length of at least two small lattices extended in a first oblique direction, and the medium lattice has a width less than the length,

the small lattices each have a rhombic shape,

at least one side of each small lattice is at an angle of 32° to 44° or 46° to 58° with respect to the first direction, and

at least one vertex angle of each small lattice is twice an angle that is formed by the one side and the first direction.

2. The conductive film according to claim 1 , wherein at least one side of each small lattice is at an angle of 32° to 39° with respect to the first direction.

3. The conductive film according to claim 1 , wherein at least one side of each small lattice is at an angle of 51° to 58° with respect to the first direction.

4. The conductive film according to claim 1 ,

wherein each of the small lattices is formed on only the one main surface of the substrate.

5. The conductive film according to claim 1 , wherein a side length of each small lattice is 100 to 400 μm.

6. The conductive film according to claim 1 , wherein a line width of the thin metal wire is 30 μm or less.

7. The conductive film according to claim 1 , wherein the medium lattice has a rectangular shape.

8. The conductive film according to claim 7 , wherein the medium lattice does not contain a smaller lattice therein.

9. A conductive film comprising:

a substrate,

a first conductive part disposed on one main surface of the substrate, and

a second conductive part disposed on another main surface of the substrate, wherein

the first conductive part contains two or more first conductive patterns,

the first conductive patterns extend in a first direction and are arranged in a second direction perpendicular to the first direction and, wherein the first conductive patterns each contain two large lattices, wherein the large lattices each contain at least two small lattices, and the two large lattices are connected in series in the first direction,

wherein the two large lattices are electrically joined in the first direction with a medium lattice, and the medium lattice has a length of at least two small lattices extended in a first oblique direction, and the medium lattice has a width less than the length,

the second conductive part contains two or more second conductive patterns,

the second conductive patterns extend in the second direction and are arranged in the first direction,

the second conductive patterns each contain a combination of two or more small lattices,

the small lattices each have a rhombic shape,

at least one side of each small lattice is at an angle of 30° to 44° or 46° to 60° with respect to the first direction,

at least one vertex angle of each small lattice is twice an angle that is formed by the one side and the first direction.

10. The conductive film according to claim 9 , wherein at least one side of each small lattice is at an angle of 32° to 39° with respect to the first direction.

11. The conductive film according to claim 9 , wherein at least one side of each small lattice is at an angle of 51° to 58° with respect to the first direction.

12. The conductive film according to claim 9 ,

the second conductive patterns each contain two or more second large lattices connected in series in the second direction,

the second large lattices each contain a combination of two or more small lattices.

13. The conductive film according to claim 9 , wherein a side length of each small lattice is 100 to 400 μm.

14. The conductive film according to claim 9 , wherein a line width of the thin metal wire is 30 μm or less.

15. A conductive film comprising,

a substrate,

a conductive part disposed on one main surface of the substrate, wherein

the conductive part contains at least two mesh patterns having openings,

the openings having a rhombic shape, and

a vertex angle of the rhombic shape has angles of 64° to 88° or 92° to 116°,

wherein the two mesh patterns are electrically joined by a medium lattice, and the medium lattice has a length of at least two openings, and the medium lattice has a width less than the length.

16. A display device comprising

a display panel and

a conductive film disposed thereon, wherein

the conductive film includes

a substrate, and

a conductive part disposed on one main surface of the substrate, wherein

a first direction is an arrangement direction of pixels in the display device,

the conductive part contains two or more conductive patterns composed of a thin metal wire,

the conductive patterns extend in the first direction and are arranged in a second direction perpendicular to the first direction,

the conductive patterns each contain a combination of two or more small lattices,

the small lattices each have a rhombic shape,

at least one side of each small lattice is at an angle of 30° to 44° or 46° to 60° with respect to the first direction, and

at least one vertex angle of each small lattice is twice an angle that is formed by the one side and the first direction,

wherein the conductive patterns include two large lattices formed from the small lattices, and the two large lattices are electrically joined with a medium lattice, and the medium lattice has a length of at least two small lattices extended in a first oblique direction, and the medium lattice has a width less than the length.

17. The display device according to claim 16 , wherein a side length of each small lattice is 100 to 400 μm.

18. The display device according to claim 16 , wherein a line width of the thin metal wire is 30 μm or less.

19. A display device comprising

a display panel and

a conductive film disposed thereon, wherein

the conductive film includes

a substrate,

a first conductive part disposed on one main surface of the substrate, and

a second conductive part disposed on another main surface of the substrate, wherein

a first direction is an arrangement direction of pixels in the display device,

the first conductive part contains two or more first conductive patterns,

the first conductive patterns extend in a first direction and are arranged in a second direction perpendicular to the first direction,

the second conductive part contains two or more second conductive patterns,

the second conductive patterns extend in the second direction and are arranged in the first direction,

the first conductive patterns and the second conductive patterns each contain a combination of two or more small lattices,

the small lattices each have a rhombic shape,

at least one side of each small lattice is at an angle of 30° to 44° or 46° to 60° with respect to the first direction, and

at least one vertex angle of each small lattice is twice an angle that is formed by the one side and the first direction

wherein the two or more first conductive patterns of the first conductive part are electrically joined with a medium lattice, and the medium lattice has a length of at least two small lattices extended in a first oblique direction, and the medium lattice has a width less than the length.

20. The display device according to claim 19 , wherein a side length of each small lattice is 100 to 400 μm.

21. The display device according to claim 19 , wherein a line width of the thin metal wire is 30 μm or less.

22. A conductive film stack formed by laminating a first conductive film and a second conductive film, wherein

the first conductive film includes

a first transparent substrate, and

a first conductive part disposed on one main surface of the first transparent substrate, and

the second conductive film includes

a second transparent substrate, and

a second conductive part disposed on one main surface of the second transparent substrate,

the first conductive part contains two or more first conductive patterns,

the first conductive patterns extend in a first direction and are arranged in a second direction perpendicular to the first direction,

the second conductive part contains two or more second conductive patterns,

the second conductive patterns extend in the second direction and are arranged in the first direction,

the first conductive patterns and the second conductive patterns each contain a combination of two or more small lattices,

the small lattices each have a rhombic shape,

at least one side of each small lattice is at an angle of 30° to 44° or 46° to 60° with respect to the first direction, and

at least one vertex angle of each small lattice is twice an angle that is formed by the one side and the first direction,

wherein the first conductive patterns include two large lattices formed from the small lattices, and the two large lattices are electrically joined with a medium lattice, and the medium lattice has a length of at least two small lattices extended in a first oblique direction, and the medium lattice has a width less than the length.

23. A display device comprising

a display panel and

a conductive film stack formed by laminating a first conductive film and a second conductive film disposed on the display panel, wherein

the first conductive film includes

a first transparent substrate, and

a first conductive part disposed on one main surface of the first transparent substrate, and

the second conductive film includes

a second transparent substrate, and

a second conductive part disposed on one main surface of the second transparent substrate,

a first direction is an arrangement direction of pixels in the display device,

the first conductive part contains two or more first conductive patterns,

the first conductive patterns extend in the first direction and are arranged in a second direction perpendicular to the first direction,

the second conductive part contains two or more second conductive patterns,

the second conductive patterns extend in the second direction and are arranged in the first direction,

the first conductive patterns and the second conductive patterns each contain a combination of two or more small lattices,

the small lattices each have a rhombic shape,

at least one side of each small lattice is at an angle of 30° to 44° or 46° to 60° with respect to the first direction, and

at least one vertex angle of each small lattice is twice an angle that is formed by the one side and the first direction

wherein the first conductive patterns include two large lattices formed from the small lattices, and the two large lattices are electrically joined with a medium lattice, and the medium lattice has a length of at least two small lattices extended in a first oblique direction, and the medium lattice has a width less than the length.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 11, 2013
From: KURIKI, TADASHI; IWAMI, KAZUCHIKA
To: FUJIFILM CORPORATION
Reel/Frame 030779/0258 →
Priority Claims (4)
JP 2011-007675 · Jan 18, 2011 · national
JP 2011-007678 · Jan 18, 2011 · national
JP 2011-007685 · Jan 18, 2011 · national
JP 2011-105374 · May 10, 2011 · national
Continuity (2)
Continuation PCTJP2012050929 · Jan 18, 2012
Related Publication 20130294037A1 · Nov 7, 2013