Display device and vehicle display device

Abstract

A display device includes a display area and a peripheral area, and comprises a display unit and a sensing unit. The display unit is located in the display area. The sensing unit is located in the peripheral area and includes a sensing transistor. The sensing transistor includes a semiconductor channel, a plurality of gates, a plurality of first electrodes, and a plurality of second electrodes. The plurality of gates are located on one side of the semiconductor channel and extend along a first direction. The plurality of first electrodes and the plurality of second electrodes are located above the semiconductor channel and extend along the first direction. The plurality of gates, the plurality of first electrodes, and the plurality of second electrodes are arranged along a second direction in the order of first electrode, gate, second electrode, gate, and the second direction intersects the first direction. The semiconductor channel extends continuously along the second direction below the plurality of first electrodes and the plurality of second electrodes. An automotive display device is also provided.

Claims

1. A display device having a display area and a peripheral area, and comprising: The display unit is located in the display area; The sensing unit is located in the peripheral region and includes a sensing transistor, wherein the sensing transistor includes: a semiconductor channel; a plurality of gates located on one side of the semiconductor channel and extending along a first direction; and a plurality of first electrodes and a plurality of second electrodes located above the semiconductor channel and extending along the first direction, wherein the plurality of gates, the plurality of first electrodes and the plurality of second electrodes are arranged along a second direction in the order of first electrode, gate, second electrode, gate, the second direction intersects the first direction, and the semiconductor channel extends continuously along the second direction below the plurality of first electrodes and the plurality of second electrodes, wherein the sensing unit further includes a reference transistor, and the structure of the reference transistor is the same as that of the sensing transistor.

2. The display device of claim 1 further includes a first light-shielding pattern located above the sensing unit and having a first opening, wherein the first light-shielding pattern overlaps the reference transistor, and the first opening overlaps the sensing transistor but does not overlap the reference transistor.

3. The display device as claimed in claim 2, wherein the first opening overlaps the plurality of gates of the sensing transistor.

4. The display device as claimed in claim 3, wherein the first opening further overlaps the region between the plurality of gates.

5. The display device as claimed in claim 1 further includes a plurality of second light-shielding patterns located on the side of the semiconductor channel opposite to the plurality of first electrodes and the plurality of second electrodes.

6. The display device as claimed in claim 5, wherein each of the second light-shielding patterns overlaps the gap between the corresponding gate and the adjacent first electrode and the gap between the corresponding gate and the adjacent second electrode.

7. The display device of claim 1, wherein when the sensing unit operates, the voltage of the plurality of gates of the sensing transistor is lower than the threshold voltage of the sensing transistor, the plurality of first electrodes have a floating voltage, and the plurality of second electrodes have a constant voltage.

8. The display device of claim 1, wherein the display unit includes a pixel transistor, the gate of the pixel transistor and the plurality of gates of the sensing transistor are in the same film layer, the source and drain of the pixel transistor and the plurality of first electrodes and the plurality of second electrodes of the sensing transistor are in the same film layer, and the semiconductor channel of the pixel transistor and the semiconductor channel of the sensing transistor are in the same film layer.

9. A vehicle display device, comprising a display area and a peripheral area, and including: A substrate is disposed on the vehicle body and located in the display area and the surrounding area; The display unit is located on the substrate and in the display area; The sensing unit is located on the substrate and in the peripheral region, and includes a sensing transistor, wherein the sensing transistor includes: a semiconductor channel; a plurality of gates located on one side of the semiconductor channel and extending along a first direction; and a plurality of first electrodes and a plurality of second electrodes located above the semiconductor channel and extending along the first direction, wherein the plurality of gates, the plurality of first electrodes and the plurality of second electrodes are arranged along a second direction in the order of first electrode, gate, second electrode, gate, the second direction intersects the first direction, and the semiconductor channel extends continuously along the second direction below the plurality of first electrodes and the plurality of second electrodes, wherein the sensing unit further includes a reference transistor, and the structure of the reference transistor is the same as that of the sensing transistor.

Images