TRANSPARENT CONDUCTIVE LAMINATE COMPRISING VISUAL LIGHT ADJUSTMENT LAYERS

• US 20110212305A1
• Filed: 02/15/2011
• Published: 09/01/2011
• Est. Priority Date: 02/26/2010
• Status: Abandoned Application

• Current Assignee: Ushine Photonics Corporation
• Original Assignee: Ushine Photonics Corporation
• Inventors: CHEN, HSUAN TA, LAI, CHUN KUANG, HSU, MING HONG
• Application Number:
  US13/027,510
• Publication Number:
  US 20110212305A1
• Time in Patent Office: Days
• US Class Current: 428/172
• CPC Class Codes: G02B 1/116 including electrically conducting layers
• CPC Class Codes: G02B 1/16 having an anti-static effect, e.g. electrically conducting coatings
• CPC Class Codes: G02B 2207/121 Antistatic or EM shielding layer
• CPC Class Codes: Y10T 428/24612 Composite web or sheet
• CPC Class Codes: Y10T 428/24942 including components having same physical characteristic in differing degree
• CPC Class Codes: Y10T 428/24975 No layer or component greater than 5 mils thick
• CPC Class Codes: Y10T 428/265 1 mil or less
• CPC Class Codes: Y10T 428/266 of base or substrate
• CPC Class Codes: Y10T 428/31504 Composite [nonstructural laminate]

Abstract

A transparent conductive laminate includes an organic polymer transparent substrate, a first visual light adjustment layer, a second visual light adjustment layer, a third visual light adjustment layer, and a transparent conductive layer. The first visual light adjustment layer has a refractive index of from 1.3 to 1.7 and an optical thickness of from 10 nanometers to 260 nanometers. The second visual light adjustment layer has a refractive index of from 1.8 to 2.5 and an optical thickness of from 3 nanometers to 1500 nanometers. The third visual light adjustment layer has a refractive index of from 1.3 to 1.7 and an optical thickness of from 10 nanometers to 260 nanometers. The root mean square deviation between the reflectance value over the wavelength range of from 380 nm to 700 nm and the average reflectance value over the wavelength range of from 380 nanometers to 700 nanometers is below 3%. The surface resistance of the transparent conductive laminate ranges from 130 to 1000Ω/cm².

Claims

1. A transparent conductive laminate, comprising:

an organic polymer transparent substrate;

a first visual light adjustment layer;

a second visual light adjustment layer;

a third visual light adjustment layer; and

a transparent conductive layer;

wherein the organic polymer transparent substrate, the first visual light adjustment layer, the second visual light adjustment layer, the third visual light adjustment layer, and the transparent conductive layer are sequentially stacked, and a surface resistance of the transparent conductive laminate ranges from 130 to 1000Ω

/cm².

2. The transparent conductive laminate of claim 1, wherein the first visual light adjustment layer, the second visual light adjustment layer, and the third visual light adjustment layer adjust the transparent conductive laminate to have a root mean square deviation between a reflectance value over a wavelength range of from 380 nm to 700 nm and an average reflectance value over the wavelength range of from 380 nanometers to 700 nanometers is below 3%.

3. The transparent conductive laminate of claim 2, wherein the first visual light adjustment layer, the second visual light adjustment layer, and the third visual light adjustment layer adjust the transparent conductive laminate to have the root mean square deviation between the reflectance value over the wavelength range of from 380 nm to 700 nm and the average reflectance value over the wavelength range of from 380 nanometers to 700 nanometers is below 2%.

4. The transparent conductive laminate of claim 3, wherein the first visual light adjustment layer, the second visual light adjustment layer, and the third visual light adjustment layer adjust the transparent conductive laminate to have the root mean square deviation between the reflectance value over the wavelength range of from 380 nm to 700 nm and the average reflectance value over the wavelength range of from 380 nanometers to 700 nanometers is below 1%.

5. The transparent conductive laminate of claim 1, wherein the transparent conductive layer comprises metal oxide semiconductor.

6. The transparent conductive laminate of claim 5, wherein the transparent conductive layer comprises indium tin oxide, indium zinc oxide, aluminum zinc oxide, tin oxide, zinc oxide, and antimony-doped tin oxide.

7. The transparent conductive laminate of claim 5, wherein the transparent conductive layer has a refractive index of from 1.8 to 2.2 and an optical thickness of from 10 nanometers to 220 nanometers.

8. The transparent conductive laminate of claim 1, further comprising a medium layer disposed between the organic polymer transparent substrate and the first visual light adjustment layer, wherein the medium layer includes inorganic material, organic material, or metal oxide, and has a physical thickness of below 10 nanometers.

9. The transparent conductive laminate of claim 1, wherein the medium layer has a physical thickness of from 2 to 5 nanometers.

10. The transparent conductive laminate of claim 8, wherein the medium layer includes carbon, silicon, aluminum oxide or SiO_x, where x is either 1 or 2.

11. The transparent conductive laminate of claim 1, wherein the transparent conductive layer includes a pattern portion and a hollow portion.

12. The transparent conductive laminate of claim 11, wherein an average reflectance difference between the pattern portion and the hollow portion over a range of from 380 nm to 800 nm is less than 3%.

13. The transparent conductive laminate of claim 12, wherein the average reflectance difference is less than 2%.

14. The transparent conductive laminate of claim 13, wherein the average reflectance difference is less than 1%.

15. The transparent conductive laminate of claim 11, wherein a difference value, Δ

a*, between the pattern portion and the hollow portion is less than 1, wherein a* is a coordinate value in the CIE L*a*b* system.

16. The transparent conductive laminate of claim 11, wherein a difference value, Δ

b*, between the pattern portion and the hollow portion is less than 1, wherein b* is a coordinate value in the CIE L*a*b* system.

17. The transparent conductive laminate of claim 1, wherein the organic polymer transparent substrate comprises poly(ethylene terephthalate) (PET), polyarylate (PAR), poly(ether sulfone) (PES), poly(ethylene naphthalate) (PEN), or polycarbonate.

18. The transparent conductive laminate of claim 1, wherein the organic polymer transparent substrate includes a harden layer or two harden layers.

19. The transparent conductive laminate of claim 1, wherein the first visual light adjustment layer includes a refractive index of from 1.3 to 1.7 and an optical thickness of from 10 nanometers to 260 nanometers;

the second visual light adjustment layer includes a refractive index of from 1.8 to 2.5 and an optical thickness of from 3 nanometers to 1500 nanometers; and

the third visual light adjustment layer includes a refractive index of from 1.3 to 1.7 and an optical thickness of from 10 nanometers to 260 nanometers.

20. The transparent conductive laminate of claim 1, wherein the first visual light adjustment layer and the second visual light adjustment layer comprise magnesium fluoride, silicon oxide (SiO_x, where x is either 1 or 2), or aluminum oxide.

21. The transparent conductive laminate of claim 1, wherein the second visual light adjustment layer comprises cerium dioxide, titanium dioxide, niobium pentoxide, zirconium dioxide, or tantalum pentoxide (Ta₂O₅).