POLARIZER AND ORGANIC LIGHT EMITTING DISPLAY APPARATUS INCLUDING THE SAME

• US 20080136315A1
• Filed: 03/26/2007
• Published: 06/12/2008
• Est. Priority Date: 10/24/2006
• Status: Abandoned Application

• Current Assignee: Samsung Mobile Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Mobile Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Oh, Jong-Seok, Lee, Jong-Hyuk, Park, Chul-Woo, Ha, Jae-Heung, Lee, Joon-Gu, Hwang, Kyu-Hwan, Song, Young-Woo
• Application Number:
  US11/691,471
• Publication Number:
  US 20080136315A1
• Time in Patent Office: Days
• US Class Current: 313/503
• CPC Class Codes: G02B 5/3058 comprising electrically conductive elements, e.g. wire grids, conductive particles
• CPC Class Codes: H10K 50/844 Encapsulations
• CPC Class Codes: H10K 50/846 comprising getter material or desiccants
• CPC Class Codes: H10K 50/86 Arrangements for improving contrast, e.g. preventing reflection of ambient light
• CPC Class Codes: H10K 59/873 Encapsulations
• CPC Class Codes: H10K 59/874 including getter material or desiccant
• CPC Class Codes: H10K 59/8791 Arrangements for improving contrast, e.g. preventing reflection of ambient light

Abstract

A polarizer and an organic light emitting display apparatus including the polarizer. According to an embodiment of the present invention, a polarizer includes a substrate and a plurality of electrode units separated from each other on the substrate and formed in a stripe pattern. Each of the electrode units includes a first surface facing the substrate and a second surface opposite the first surface, the first surface having a width smaller than a width of the second surface.

Claims

1. A polarizer comprising:

a substrate; and

a plurality of electrode units separated from each other on the substrate and formed in a stripe pattern, wherein

each of the electrode units comprises a first surface facing the substrate and a second surface opposite the first surface, the first surface having a width smaller than a width of the second surface.

2. The polarizer of claim 1, wherein the electrode units comprise at least one of aluminum, silver, or chromium.

3. The polarizer of claim 1, further comprising a blackened layer on surfaces of each of the electrode units for absorbing external light.

4. A method of forming a polarizer, the method comprising:

forming a plurality of electrode units separated from each other in a stripe pattern on a substrate; and

blackening surfaces of the electrode units using a chemical process,

wherein each of the electrode units comprises a first surface facing the substrate and a second surface opposite the first surface, the first surface having a width smaller than a width of the second surface.

5. The method of claim 4, wherein the blackening surfaces of the electrode units comprises:

removing oxides from the surfaces of the electrode units; and

processing the surfaces of the electrode units using a solution comprising nitric acid, potassium permanganate, and copper nitrate.

6. An organic light emitting display apparatus comprising:

a substrate;

an organic light emitting device formed on the substrate and adapted to display an image;

a sealing member formed on the organic light emitting device;

a quarter-wave layer formed on one of the substrate, the organic light emitting device, or the sealing member; and

a linear polarizing layer formed on one of the substrate, the organic light emitting device, the sealing member, or the quarter-wave layer,

wherein a distance between the linear polarizing layer and a location at which the image is displayed is smaller than a distance between the quarter-wave layer and the location at which the image is displayed, and

wherein the linear polarizing layer comprises a plurality of electrode units, each of the electrode units having a first surface facing incoming external light and a second surface opposite the first surface, the first surface having a width smaller than a width of the second surface.

7. The organic light emitting display apparatus of claim 6, wherein the image is displayed towards the substrate, the quarter-wave layer is formed on the linear polarizing layer, and the organic light emitting device is formed on the quarter-wave layer.

8. The organic light emitting display apparatus of claim 6, wherein the image is displayed towards the substrate, the quarter-wave layer is formed on the linear polarizing layer, the linear polarizing layer is formed on the substrate, and the organic light emitting device is formed on the quarter-wave layer.

9. The organic light emitting display apparatus of claim 6, wherein the image is displayed towards the substrate, the quarter-wave layer is formed on a first surface of the substrate, the organic light emitting device is formed on the quarter-wave layer, and the linear polarizing layer is formed on a second surface of the substrate, the second surface of the substrate being opposite the first surface of the substrate.

10. The organic light emitting display apparatus of claim 6, wherein the image is displayed towards the substrate, the organic light emitting device is formed at a first surface of the substrate, and the quarter-wave layer and the linear polarizing layer are sequentially formed on a second surface of the substrate, the second surface of the substrate being opposite the first surface of the substrate.

11. The organic light emitting display apparatus of claim 6, wherein the image is displayed towards the sealing member, the quarter-wave layer is formed on the organic light emitting device, and the linear polarizing layer is formed on the quarter-wave layer.

12. The organic light emitting display apparatus of claim 11, further comprising a passivation film formed between the organic light emitting device and the quarter-wave layer.

13. The organic light emitting display apparatus of claim 6, wherein the image is displayed towards the sealing member, the quarter-wave layer and the linear polarizing layer are sequentially formed on a surface of the sealing member opposite a surface of the sealing member on which the organic light emitting device is formed.

14. The organic light emitting display apparatus of claim 6, wherein the image is displayed towards the sealing member, the quarter-wave layer is formed on a surface of the sealing member facing the organic light emitting device, and the linear polarizing layer is formed on a surface of the sealing member opposite a surface of the sealing member on which the quarter-wave layer is formed

15. The organic light emitting display apparatus of claim 6, wherein the image is displayed towards the sealing member, the linear polarizing layer is formed on a surface of the sealing member facing the organic light emitting device, and the quarter-wave layer is formed on a surface of the linear polarizing layer facing the organic light emitting device.

16. The organic light emitting display apparatus of claim 6, further comprising a reflection film interposed between the substrate and the organic light emitting device, wherein the image is displayed towards the sealing member, the quarter-wave layer is formed between the reflection film and the organic light emitting device, and the linear polarizing layer is formed on the organic light emitting device.

17. The organic light emitting display apparatus of claim 6, wherein the electrode units comprise at least one of aluminum, silver, or chromium.

18. The organic light emitting display apparatus of claim 6, further comprising a blackened layer on surfaces of each of the electrode units for absorbing external light.

19. A flat panel display device comprising:

a substrate having a plurality of pixel areas defined thereon; and

a linear polarizing layer disposed on the substrate, the linear polarizing layer comprising a plurality of electrode units, each of the electrode units having a first surface facing incoming external light and a second surface opposite the first surface, the first surface having a width smaller than a width of the second surface.

20. The flat panel display device of claim 19, wherein the linear polarizing layer further comprises a blackened layer on side surfaces of each of the electrode units for absorbing the external light.