Patent ID: 8829521

Claim:
A TFT board for a liquid crystal display device, comprising: a substrate; a circuit layer formed on the substrate, the circuit layer including a thin film transistor including a semiconductor layer, a gate electrode, a drain electrode, and a source electrode; and a color filter layer formed on the circuit layer, wherein the color filter layer has a through hole formed therein above the semiconductor layer in a region between the source electrode and the drain electrode and above the gate electrode in a plane view, a width of the through hole of the color filter layer is smaller than a width of the gate electrode in a direction in which the drain electrode and the source electrode are extended, the color filter layer includes colored layers of a plurality of colors; among the colored layers of the plurality of colors, at least one colored layer is formed to have the through hole formed therein, while another colored layer different in color from the at least one colored layer is formed without the through hole; and the through hole has a layer formed therein, the layer being formed of the same material as a material of the another colored layer without the through hole.