Electrophoretic display device

Abstract

An electrophoretic display device includes a substrate, an electrophoretic display film, a plurality of second electrodes, and a plurality of third electrodes. The electrophoretic display film is disposed on the substrate and includes a display medium layer and a first electrode. The second electrodes and the third electrodes are disposed on the substrate and located between the display medium layer and the substrate. A first voltage received by each of the second electrodes is controlled by a corresponding thin-film transistor. The third electrodes and the second electrodes are alternately disposed in a direction. The first voltage is different from a second voltage received by the third electrodes.

What is claimed is: 
     
         1 . An electrophoretic display device, comprising:
 a substrate;   an electrophoretic display film disposed on the substrate and comprising a display medium layer and a first electrode;   a plurality of second electrodes separately disposed on the substrate and located between the display medium layer and the substrate, wherein a first voltage received by each of the second electrodes is controlled by a corresponding thin-film transistor; and   a plurality of third electrodes disposed on the substrate and located between the display medium layer and the substrate, wherein the third electrodes and the second electrodes are alternately disposed in a direction, the first voltage is different from a second voltage received by the third electrodes, and the third electrodes are a plurality of barrier electrodes which are not controlled by thin-film transistors under the display medium layer.   
     
     
         2 . The electrophoretic display device of  claim 1 , wherein the first electrode receives the second voltage. 
     
     
         3 . The electrophoretic display device of  claim 1 , wherein an extending direction of the second electrodes is parallel to an extending direction of a data line. 
     
     
         4 . The electrophoretic display device of  claim 1 , wherein a horizontal spacing between two adjacent second electrodes is between 6 μm and 45 μm. 
     
     
         5 . The electrophoretic display device of  claim 1 , wherein a horizontal spacing between each of the third electrodes and two adjacent second electrodes is the same. 
     
     
         6 . The electrophoretic display device of  claim 5 , wherein a width of each of the third electrodes is equal to the horizontal spacing. 
     
     
         7 . The electrophoretic display device of  claim 1 , wherein a material of the third electrodes is the same as a material of the second electrodes. 
     
     
         8 . The electrophoretic display device of  claim 1 , wherein the first electrode is a common electrode, the second electrodes are a plurality of display electrodes, and materials of any two of the first electrode, the second electrodes, and the third electrodes are the same. 
     
     
         9 . The electrophoretic display device of  claim 1 , wherein the second electrodes are arranged in an array, and a shape of each of the third electrodes is a strip. 
     
     
         10 . The electrophoretic display device of  claim 1 , wherein the second electrodes are arranged in an array and the third electrodes are arranged in a grid shape, and the second electrodes and the third electrodes are all alternately arranged in the direction and another direction perpendicular to the direction.