Display device

• US 8,508,703 B2
• Filed: 12/08/2010
• Issued: 08/13/2013
• Est. Priority Date: 07/26/2010
• Status: Expired due to Fees

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Lee, Dong-Hwan, Seo, Young-Sam, Ha, Chung-Soo, Kim, Young-Duek, Lee, Jin-Sung
• Primary Examiner(s): CHIEN, LUCY P
• Application Number:
  US12/962,904
• Publication Number:
  US 20120019758A1
• Time in Patent Office: 979 Days
• Field of Search: None
• US Class Current: 349/137
• CPC Class Codes: G02B 1/115 Multilayers
• CPC Class Codes: G02F 1/133331 Cover glasses
• CPC Class Codes: G02F 1/133502 Antiglare, refractive index matching layers

Abstract

An exemplary embodiment provides a display device that includes: a display panel; a window positioned on the display panel; and an anti-reflection layer coated on the window.

Claims

1. A display device, comprising:

a display panel;

a window positioned on the display panel, having a first surface that faces the display panel and an opposing second surface; and

an anti-reflection layer on the second surface of the window, the anti-reflection layer including an anti-reflection coating having a plurality of layers, the plurality of layers having different thicknesses, wherein;

the plurality of layers includes a first layer, a second layer, a third layer, and a fourth layer in that order from the window, and

the third and fourth layers are each thicker than a combined thickness of the first and second layers.

2. The device of claim 1, wherein the plurality of layers have different refractive indexes.

3. The device of claim 1, wherein the first layer includes titanium oxide TiO₂, and the second layer includes silicon oxide SiO₂.

4. The device of claim 1, further comprising a fingerprint prevention layer on the anti-reflection layer.

5. The device of claim 4, wherein the fingerprint prevention layer includes an anti-fingerprint (AF) coating.

6. The device of claim 4, wherein the fingerprint prevention layer includes fluorine (F).

7. The device of claim 4, wherein the total thickness of the anti-reflection layer and the fingerprint prevention layer is in the range of about 1600 to 2200 Å

.

8. The device of claim 4, further comprising a polarizer positioned between the display panel and the window.

9. The device of claim 8, further comprising an adhesive layer positioned between the polarizer and the window.

10. The device of claim 1, wherein the display panel includes liquid crystals or an organic light emitting diode.

11. The device of claim 1, further comprising a fingerprint prevention layer having a thickness of less than about 300 angstroms.

12. The device of claim 8, wherein there are substantially no air gaps between the window and the display panel.

13. The device of claim 1, wherein a surface of the anti-reflection layer has an irregular pattern.