Flat panel display including an opaque film to block an eternal light reflected from a thin film transistor (TFT) and a capacitor
View Patent ↗A flat panel display with a black matrix and a fabrication method of the same. The flat panel display has an insulating substrate at the upper part of which a pixel electrode is equipped; an opaque conductive film formed on the front surface of the insulating substrate except at the pixel electrode; an insulating film equipped with a contact hole exposing a portion of the opaque conductive film; and a thin film transistor equipped with a gate electrode, and conductive patterns for source/drain electrodes connected to the opaque conductive film through the contact hole.
1. An organic electroluminescent display comprising:
a substrate;
a pixel electrode formed in a first region of the substrate; and
a thin film transistor (TFT) and a capacitor formed in a second region of the substrate, the second region of the substrate being different from the first region of the substrate;
a flattening film formed on the second region of the substrate and formed on the first region of the substrate except at an opening part where a portion of the pixel electrode directly contacts an organic electroluminescent layer; and
an opaque material formed on a front surface of only the second region of the substrate to block an external light reflected from the TFT and the capacitor, wherein the opaque material and the opening part do not overlap, and wherein the opaque material has a gradual concentration gradient and comprises a first transparent component and a second metallic component.
2. The organic electroluminescent display according to claim 1 , wherein the opaque material contacts the TFT and capacitor via contact holes to supply power thereto.
3. The organic electroluminescent display according to claim 1 , wherein the opaque material comprises a metallic material, an opaque insulating material or an organic material.
4. A organic electroluminescent display comprising:
a substrate;
a pixel electrode formed in a first region of the substrate; and
a thin film transistor (TFT) and a capacitor formed in a second region of the substrate, the second region of the substrate being different from the first region of the substrate;
a flattening film formed on the pixel electrode exposing a portion of the pixel electrode defining an opening part of the pixel electrode;
an organic electroluminescent layer formed on the pixel electrode and directly contacting the exposed portion of the pixel electrode; and
an opaque material formed on a front surface of only the second region of the substrate to expose the opening part of the pixel electrode while blocking an external light reflected from the TFT and the capacitor, wherein the opaque material has a gradual concentration gradient and comprises a first transparent component and a second metallic component and wherein the opaque material and the opening part do not overlap.
5. The organic electroluminescent display of claim 1 , wherein the opaque material comprises a film wherein a ratio of the metallic component to the transparent component gradually increases along a thickness direction of the opaque material.