Display substrate, display apparatus having the same and method of manufacturing the same

Abstract

A display substrate includes a base substrate, a high reflective layer, a metal light reflective layer and a low reflective layer. The high reflective layer is on the base substrate, and includes a high refractive layer and a low refractive layer which alternate with each other. The high refractive layer has a first refractive index, and the low refractive layer has a second refractive index smaller than the first refractive index. The metal light reflective layer is between the high reflective layer and the low reflective layer, and reflects a light. The low reflective layer comprises a light absorbing layer which absorbs a light, and at least one insulating layer. Accordingly, a light utilizing efficiency and a display quality may be increased.

What is claimed is: 
     
         1 . A display substrate comprising:
 a base substrate;   a gate insulating layer on the base substrate;   an optical absorbing layer on the gate insulating layer, and comprising a metal light absorbing layer which absorbs a light, and at least one insulating layer; and   a gate metal layer on the gate insulating layer.   
     
     
         2 . The display substrate of  claim 1 , wherein the metal light absorbing layer comprises titanium (Ti). 
     
     
         3 . The display substrate of  claim 1 , wherein the insulating layer comprises silicon oxide (SiO x ). 
     
     
         4 . A display substrate comprising:
 a base substrate;   an optical absorbing layer on the base substrate, and comprising first and second metal light absorbing layers which absorb a light, and an insulating layer between the first and second metal light absorbing layers;   a gate insulating layer on the optical absorbing layer; and   a gate metal layer on the gate insulating layer.   
     
     
         5 . The display substrate of  claim 4 , wherein the first and second metal light absorbing layers comprise at least one of titanium (Ti), molybdenum (Mo), aluminum (Al), copper (Cu), chrome (Cr), molybdenum-tungsten (MoW) and aluminum-neodymium (AlNd). 
     
     
         6 . The display substrate of  claim 4 , wherein the insulating layer comprises silicon oxide (SiO x ).