# US 2014/0153280 A1 · Optical member, display device having the same and method for fabricating the same

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- Number: US 2014/0153280 A1
- Document ID: US20140153280A1
- Status: Published application
- Kind: A1
- Application number: 14/232,825
- Filed: 2012-06-26
- Published: 2014-06-05
- Earliest claimed: 2011-07-14
- Assignees: LG Innotek Co., Ltd.
- Inventors: Sun Hwa Lee
- Web page: https://patentgrep.com/patent/US20140153280A1

## CPC

- G02B 6/0035: {provided on the surface of the light guide or in the bulk of it}
- F21V 9/08: for producing coloured light, e.g. monochromatic; for reducing intensity of light (with provision for controlling the colour F21V9/40)
- G02B 5/23: Photochromic filters
- G02B 6/005: {provided by one optical element, or plurality thereof, placed on the light output side of the light guide}
- G02B 6/0065: {Manufacturing aspects; Material aspects}
- G02F 1/133617: {Illumination with ultraviolet light; Luminescent elements or materials associated to the cell}
- G02F 2202/28: Adhesive materials or arrangements
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS

## Abstract

Disclosed are an optical member, a display device including the same, and a method of fabricating the same. The optical member includes a barrier film; an adhesive layer bonded onto the barrier film and including a plurality of wavelength conversion particles and an adhesive; and a detachable film detachably attached onto the adhesive layer.

## Claims

### Claim 1

An optical member comprising:
a barrier film;
an adhesive layer bonded onto the barrier film and including a plurality of wavelength conversion particles and an adhesive; and
a detachable film detachably attached onto the adhesive layer.

### Claim 2 (depends on 1)

The optical member of claim 1, wherein the adhesive has viscosity in a range of about 5,000 cP to about 20,000 cP.

### Claim 3 (depends on 1)

The optical member of claim 1, wherein the adhesive includes a silicon adhesive, a rubber adhesive or an acryl adhesive.

### Claim 4 (depends on 1)

The optical member of claim 1, wherein the adhesive includes a crosslinking agent and the crosslinking agent includes ethylene glycol monobutyl ether acetate, hydrogenated rosin ester, or vinyl acetate.

### Claim 5 (depends on 1)

The optical member of claim 1, wherein the detachable film includes polymer and the polymer includes ethylene terephthalate.

### Claim 6 (depends on 1)

The optical member of claim 1, wherein the barrier film includes a transparent polymer layer and an inorganic layer coated on a top surface or a bottom surface of the transparent polymer layer.

### Claim 7 (depends on 1)

The optical member of claim 1, wherein the inorganic layer includes silicon oxide (SiXOY), silicon carbide oxide (SiXCYOZ), silicon oxide nitride (SiXOYNZ), or aluminum oxide (AlXOY).

### Claim 8

A display device comprising:
a light source;
a wavelength conversion part for converting a wavelength of light emitted from the light source; and
a display panel into which the light output from the wavelength conversion part is incident
wherein the wavelength conversion part comprises:
a barrier film; and
an adhesive layer bonded onto the barrier film and including a plurality of wavelength conversion particles.

### Claim 9 (depends on 8)

The display device of claim 8, further comprising a light guide plate under the display panel, wherein the light emitted from the light source is incident into the light guide plate through a lateral side of the light guide plate, and the wavelength conversion part is bonded to one surface of the light guide plate.

### Claim 10 (depends on 8)

The display device of claim 8, further comprising a light guide plate under the display panel and an optical sheet between the light guide plate and the display panel, wherein the light emitted from the light source is incident into the light guide plate through a lateral side of the light guide plate, and the wavelength conversion part is bonded to one surface of the optical sheet.

### Claim 11 (depends on 8)

The display device of claim 8, wherein the barrier film includes a transparent polymer layer and an inorganic layer coated on the transparent polymer layer.

### Claim 12 (depends on 11)

The display device of claim 11, wherein the inorganic layer includes silicon oxide (SiXOY), silicon carbide oxide (SiXCYOZ), silicon oxide nitride (SiXOYNZ), or aluminum oxide (AlXOY).

### Claim 13 (depends on 8)

The display device of claim 8, wherein the adhesive has viscosity in a range of about 5,000 cP to about 20,000 cP.

### Claim 14 (depends on 8)

The display device of claim 8, wherein the adhesive layer includes a silicon adhesive, a rubber adhesive or an acryl adhesive.

### Claim at position 15

15-20. (canceled)