Patent ID: 7440042

Claim:
A display device comprising: a first glass substrate having a gate line, a drain line, a pixel electrode and a thin film transistor; a second glass substrate having a color filter; and a liquid crystal layer; wherein a first background film made of silicon nitride is formed on the glass substrate; wherein a second background film made of silicon oxide is formed on the first background film; wherein the thin film transistor is formed on the second background film, and the thin film transistor includes a poly-silicon film, a gate electrode which is electrically connected to the gate line, a drain electrode which is electrically connected to the drain line, and a source electrode which is electrically connected to the pixel electrode; wherein the pixel electrode including a light transmissive electrode forming a transmissive region; wherein a gate insulation film is formed between the second background film and the gate electrode; wherein an interlayer film is arranged close to the gate insulation film and interposed between the gate insulation film and the pixel electrode; wherein a film thickness of the silicon nitride film is larger than a film thickness of the silicon oxide film at the transmissive region; and wherein the silicon nitride film and the silicon oxide film are configured so as to reduce reflection.