| 摘要 |
A liquid crystal display device includes a first substrate on which a thin film transistor is formed. The liquid crystal display device includes a first transistor which has a gate electrode thereof formed on a side more remote from the first substrate than a semiconductor layer and has a drain electrode thereof connected to the drain line, a second transistor which is connected to the first transistor in series, and has a source electrode thereof electrically connected to a pixel electrode, and a light blocking layer which is formed between the semiconductor layer and the first substrate and blocks a backlight incident from a first substrate side. The light blocking layer is formed in an overlapping manner on the first transistor, blocks a backlight incident on a first transistor side, and allows a backlight incident on a second transistor side to pass therethrough. |
| 主权项 |
1. A liquid crystal display device comprising;
a first substrate on which are formed a plurality of gate lines which extend in the X direction and are arranged parallel to each other in the Y direction, a plurality of drain lines which extend in the Y direction and are arranged parallel to each other in the X direction, and a plurality of multi-gate-type thin film transistors, each of which is configured to output a video signal from one of the plurality of the drain lines to a pixel electrode in synchronism with a scanning signal from one of the plurality of the gate lines; and a second substrate which is arranged facing the first substrate in an opposed manner with a liquid crystal layer sandwiched therebetween, wherein each of the plurality of the multi-gate-type thin film transistors is comprised of a top-gate type thin film transistor which includes a semiconductor layer and a gate electrode thereof formed to be more remote from the first substrate than the semiconductor layer, the semiconductor layer including a first channel region and a second channel region, the first channel region is arranged closer to one of the plurality of the drain lines, which is electrically connected to the semiconductor layer, than the second channel region, and the first and second channel regions are configured so that a video signal is transmitted from the first channel region to the pixel electrode through the second channel region, said liquid crystal display device further comprising a light blocking layer that blocks a backlight light incident from a first substrate side of the liquid crystal display device, said light blocking layer being arranged at a position between the first channel region and the first substrate, the position overlapping the first channel region in a plan view, wherein the light blocking layer is arranged so as not to overlap the second channel region in a plan view, and wherein the backlight light is incident on the second channel region form a direction vertical to the first substrate. |
