Polarizer and organic light emitting display apparatus including the same

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.

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.