Optical structures having integrated component layers

Patent metadata

Field	Value
Publication number	US-9874961-B2
Application number	US-201414897035-A
Country	US
Kind code	B2
Filing date	Jun 2, 2014
Priority date	Jun 10, 2013
Publication date	Jan 23, 2018
Grant date	Jan 23, 2018

Abstract

A method of forming an optical structure in a continuous manufacturing process includes providing a continuous ribbon of flexible glass substrate ( 134 ) having a thickness of no more than 0.3 mm. The continuous ribbon of flexible glass substrate has a first side and a second side separated by a plane formed by the ribbon of flexible glass substrate. A liquid polarizer material ( 142 ) is applied on the ribbon of flexible glass substrate at one of the first and second sides as the continuous ribbon of flexible glass substrate moves by a polarizer material application apparatus to form a polarizing layer. A conductive material ( 150 ) is applied on the ribbon of flexible glass substrate at one of the first and second sides to form a touch layer for a touch sensitive display.

First claim

What is claimed is:

1. A method of forming an optical structure in a continuous manufacturing process, the method comprising:
providing a continuous ribbon of flexible glass substrate having a thickness of no more than 0.3 mm, the continuous ribbon of flexible glass substrate having a first side and a second side separated by a plane formed by the ribbon of flexible glass substrate;
applying a liquid polarizer material on the ribbon of flexible glass substrate at one of the first and second sides as the continuous ribbon of flexible glass substrate moves by a polarizer material application apparatus to form a polarizing layer; and
applying a conductive material on the ribbon of flexible glass substrate at one of the first and second sides to form a touch layer for a touch sensitive display.

2. The method of claim 1 , wherein the liquid polarizer material comprises a dichroic dye-containing liquid.

3. The method of claim 1 further comprising orienting the liquid polarizing material to form a polarizing component.

4. The method of claim 1 further comprising applying a retardation material at one of the first and second sides.

5. The method of claim 4 , wherein the retardation material forms a retardation layer located between the polarizing layer and the ribbon of flexible glass substrate at the first side of the ribbon of flexible glass substrate.

6. The method of claim 5 , wherein the touch layer is located at the second side of the ribbon of flexible glass substrate.

7. The method of claim 4 , wherein the retardation material forms a retardation layer, the polarizing layer located between the ribbon of flexible glass substrate and the polarizing layer.

8. The method of claim 1 , wherein the polarizing layer is located at the first side of the ribbon of flexible glass substrate and the touch layer is located at the second side of the ribbon of flexible glass substrate.

9. The method of claim 1 , wherein both the polarizing layer and the touch layer are located at the first side of the ribbon of flexible glass substrate.

10. The method of claim 9 , wherein the touch layer is located between the ribbon of flexible glass substrate and the polarizing layer.

11. The method of claim 10 , further comprising applying a retardation layer at the first side of the ribbon of flexible glass substrate, wherein the touch layer and the polarizing layer are located between the retardation layer and the ribbon of flexible glass substrate.

12. The method of claim 9 , wherein the polarizing layer is located between the touch layer and the ribbon of flexible glass substrate.

13. A roll of an optical structure comprising:
a continuous ribbon of flexible glass substrate having a thickness of no more than 0.3 mm, the continuous ribbon of flexible glass substrate having a first side and a second side separated by a plane formed by the continuous ribbon of flexible glass substrate;
a coating of a polarizer material on the continuous ribbon of flexible glass substrate at one of the first and second sides forming a polarizing layer, the coating of polarizer material being formed of a dichroic dye-containing liquid; and
a conductive material on the continuous ribbon of flexible glass substrate at one of the first and second sides to form a touch layer for a touch sensitive display.

14. The optical structure of claim 13 further comprising a retardation material at one of the first and second sides.

15. The optical structure of claim 14 , wherein the retardation material forms a retardation layer located between the polarizing layer and the continuous ribbon of flexible glass substrate at the first side of the continuous ribbon of flexible glass substrate.

Assignees

• Corning Inc

Inventors

• Chaturvedi Ashish Hersh
• Ishikawa Tomohiro
• Tian Lili

Classifications

• G02B1/08

  made of polarising materials · CPC title

• G06F3/041

  Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means · CPC title

• C03C17/42

  at least one coating of an organic material and at least one non-metal coating · CPC title

• G06F2203/04103

  Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices · CPC title

• C03C17/38

  at least one coating being a coating of an organic material · CPC title