Display device and electronic device

Abstract

A novel display device capable of adjusting color purity is provided. A novel display device with improved adhesion of a color filter is provided. A novel display device capable of excellent reflective display is provided. The display device includes a transistor, a reflective electrode layer formed on the same surface as a source electrode layer or a drain electrode layer of the transistor, a first insulating layer over the reflective electrode layer, a coloring layer which is over the first insulating layer and overlaps with the reflective electrode layer, a second insulating layer over the coloring layer, and a pixel electrode layer over the second insulating layer. The coloring layer includes at least a first opening and a second opening. The pixel electrode layer is electrically connected to the transistor through the first opening. The second insulating layer is in contact with the first insulating layer in the second opening.

What is claimed is: 
     
         1 . A display device comprising:
 a first substrate;   a transistor over the first substrate;   an electrode layer electrically connected to the transistor;   a first insulating layer over the electrode layer;   a pixel electrode layer over the first insulating layer;   a second insulating layer over the pixel electrode layer;   a first coloring layer over the second insulating layer, the first coloring layer overlapping with the electrode layer and the pixel electrode layer; and   a second substrate over the first coloring layer,   wherein the first coloring layer includes a first opening, and   wherein the second insulating layer is in contact with the second substrate in the first opening.   
     
     
         2 . The display device according to  claim 1  further comprising a second coloring layer,
 wherein the second coloring layer includes a second opening, and 
 wherein an upper surface shape of the second opening is different from an upper surface shape of the first opening. 
 
     
     
         3 . The display device according to  claim 1 ,
 wherein the pixel electrode layer is a reflective electrode layer.   
     
     
         4 . The display device according to  claim 1 ,
 wherein the transistor comprises a gate electrode layer, a gate insulating layer and a semiconductor layer, the gate electrode layer overlapping with the semiconductor layer,   wherein the gate insulating layer is provided between the gate electrode layer and the semiconductor layer, and   wherein a source electrode layer and a drain electrode layer are in contact with the gate insulating layer and the semiconductor layer.   
     
     
         5 . The display device according to  claim 4 ,
 wherein the semiconductor layer comprises an oxide semiconductor.   
     
     
         6 . The display device according to  claim 5 ,
 wherein the oxide semiconductor includes an oxide represented by an In-M-Zn oxide containing at least indium (In), zinc (Zn), and M, and   wherein M represents Al, Ga, Ge, Y, Zr, Sn, La, Ce, or Hf.   
     
     
         7 . An electronic device comprising the display device according to  claim 1 .