A TFT array substrate structure, comprising a substrate, a first metal electrode on the substrate, a gate isolation layer positioned on the substrate and completely covering the first metal electrode, an island shaped semiconductor layer on the gate isolation layer, a second metal electrode on the gate isolation layer and the island shaped semiconductor layer, a protecting layer on the second metal electrode, a color resist layer on the protecting layer, a protecting layer on the color resist layer and a first pixel electrode layer on the protecting layer;
- a via is formed on the protecting layer, the color resist layer and the protecting layer, and an organic material layer fills the inside of the via;
- the substrate is a glass substrate, and the island shaped semiconductor layer is formed with amorphous silicon, and the color resist layer is a RGB color resist layer, and material of the first pixel electrode layer is ITO or IZO, and the organic material layer is formed with photoresist type material.