CONDUCTIVE FILM, POLARIZING PLATE, AND DISPLAY DEVICE PROVIDED WITH TOUCH PANEL

• US 20170144408A1
• Filed: 01/13/2017
• Published: 05/25/2017
• Est. Priority Date: 07/17/2014
• Status: Abandoned Application

• Current Assignee: Fujifilm Corporation (Fujifilm Holdings Corporation)
• Original Assignee: Fujifilm Corporation (Fujifilm Holdings Corporation)
• Inventors: SATA, Hiroaki
• Application Number:
  US15/406,183
• Publication Number:
  US 20170144408A1
• Time in Patent Office: Days
• CPC Class Codes: B32B 2250/03 3 layers
• CPC Class Codes: B32B 2255/04 on a particulate layer
• CPC Class Codes: B32B 2255/10 on synthetic resin layer or on natural or synthetic rubber layer
• CPC Class Codes: B32B 2255/20 Inorganic coating
• CPC Class Codes: B32B 2255/26 Polymeric coating
• CPC Class Codes: B32B 2255/28 Multiple coating on one surface
• CPC Class Codes: B32B 2264/108 Carbon, e.g. graphite particles
• CPC Class Codes: B32B 23/08 of synthetic resin
• CPC Class Codes: B32B 23/12 next to a particulate layer
• CPC Class Codes: B32B 23/20 comprising esters
• CPC Class Codes: B32B 2307/202 Conductive
• CPC Class Codes: B32B 2307/40 having particular optical properties
• CPC Class Codes: B32B 2307/412 Transparent
• CPC Class Codes: B32B 2307/42 Polarizing, birefringent, filtering
• CPC Class Codes: B32B 2307/538 Roughness
• CPC Class Codes: B32B 2307/732 Dimensional properties
• CPC Class Codes: B32B 2457/20 Displays, e.g. liquid crystal displays, plasma displays
• CPC Class Codes: B32B 2457/208 Touch screens
• CPC Class Codes: B32B 27/08 of synthetic resin
• CPC Class Codes: B32B 27/14 next to a particulate layer
• CPC Class Codes: B32B 27/306 : comprising vinyl acetate or vinyl alcohol (co)polymers
• CPC Class Codes: B32B 27/308 : comprising acrylic (co)polymers
• CPC Class Codes: B32B 27/325 : comprising polycycloolefins
• CPC Class Codes: B32B 5/16 : characterised by features of a layer formed of particles, e.g. chips, powder or granules layer formed of natural mineral particles B32B19/00; layer being formed of wood fibres, chips or particles B32B21/02
• CPC Class Codes: B32B 7/12 : using interposed adhesives or interposed materials with bonding properties
• CPC Class Codes: B32B 9/00 : Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
• CPC Class Codes: G02B 5/3025 : Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state G02B5/3008, G02B5/3016 take precedence
• CPC Class Codes: G06F 2203/04103 : Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
• CPC Class Codes: G06F 2203/04111 : Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate
• CPC Class Codes: G06F 3/04164 : Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
• CPC Class Codes: G06F 3/0443 : using a single layer of sensing electrodes
• CPC Class Codes: G06F 3/0445 : using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
• CPC Class Codes: G06F 3/0446 : using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
• CPC Class Codes: G09F 9/00 : Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the variable information is permanently attached to a movable support G09F11/00; abacus G06C1/00; slide-rules G06G1/00
• CPC Class Codes: H01B 5/14 : comprising conductive layers or films on insulating-supports

Abstract

An object of the present invention is to provide a conductive film which can he easily produced, has high light transmittance and has excellent flatness, and has a hard coat layer; and a polarizing plate and a display device provided with a touch panel which have a conductive film. The conductive film of the present invention includes a support which has an in-plane retardation Re (550) of 10 nm or less at a wavelength of 550 nm and has a retardation Rth (550) of −60 to 60 nm at a wavelength of 550 nm in a thickness direction; a conductive layer which is disposed on at least one surface of the support, includes fullerene functionalized carbon nanotubes, and has a thickness of less than 10 μm; and a hard coat layer which is disposed adjacent to the conductive layer.

Claims

1. A conductive film comprising:

a support which has an in-plane retardation of 10 nm or less at a wavelength of 550 nm and has a retardation of −

60 to 60 nm at a wavelength of 550 nm in a thickness direction;

a conductive layer which is disposed on at least one surface of the support, includes fullerene functionalized carbon nanotubes, and has a thickness of less than 10 μ

m; and

a hard coat layer which is disposed adjacent to the conductive layer.

2. The conductive film according to claim 1,

wherein a sheet resistance value is in a range of 10 to 150 Ω

/□

.

3. The conductive film according to claim 1,

wherein the thickness of the support is in a range of 10 to 80 μ

m.

4. The inductive film according to claim 2,

wherein the thickness of the support is in a range of 10 to 80 μ

m.

5. The conductive film according to claim 1,

wherein the support includes at least one selected from the group consisting of a cellulose acylate resin, an acrylic resin, a methacrylic resin, and a cycloolefine resin.

6. The conductive film according to claim 2,

wherein the support includes at least one selected from the group consisting of a cellulose acylate resin, an acrylic resin, a methacrylic resin, and a cycloolefine resin.

7. The conductive film according to claim 3,

wherein the support includes at least one selected from the group consisting of a cellulose acylate resin, an acrylic resin, a methacrylic resin, and a cycloolefine resin.

8. The conductive film according to claim 4,

wherein the support includes at least one selected from the group consisting of a cellulose acylate resin, an acrylic resin, a methacrylic resin, and a cycloolefine resin.

9. A polarizing plate comprising:

the conductive film according to claim 1; and

a polarizer.

10. A polarizing plate comprising:

the conductive film according to claim 2; and

a polarizer.

11. A polarizing plate comprising:

the conductive film according to claim 3; and

a polarizer.

12. A polarizing plate comprising:

the conductive film according to claim 5; and

a polarizer.

13. The conductive film according to claim 1, which is used for a touch panel.

14. The conductive film according to claim 2, which is used for a touch panel.

15. The conductive film according to claim 3, which is used for a touch panel.

16. The conductive film according to claim 5, which is used for a touch panel.

17. A display device provided with a touch panel comprising:

the conductive film according to claim 13.

18. A display device provided with a touch panel comprising:

the conductive film according to claim 14.

19. A display device provided with a touch panel comprising:

the conductive film according to claim 15.

20. A display device provided with a touch panel comprising:

the conductive film according to claim 16.