Display panel and manufacture method thereof
AssigneeWuhan China Star Optoelectronics Technology Co., Ltd.
InventorsYongdi Zhang, Fei Al, Dewei Song
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Abstract
A display panel and a manufacture method thereof are provided in embodiments of the present disclosure, and the display panel includes at least one photosensitive element each including a first electrode, a photosensitive semiconductor layer and a second electrode. The photosensitive semiconductor layer is disposed on the first electrode, and the second electrode is disposed on the photosensitive semiconductor layer. The photosensitive element further includes a connection insulation layer disposed between the second electrode and the photosensitive semiconductor layer. In the present application, leakage current in a dark state is lowered and an uniformity of different photosensitive elements is improved.
Claims13
A display panel, comprising:
- a substrate;
- at least one control transistor, disposed on the substrate;
- wherein each of the at least one control transistor comprises an active layer, and the active layer comprises a source part, a drain part and a channel part disposed between the source part and the drain part;
- at least one photosensitive element, wherein the at least one photosensitive element and the at least one control transistor are disposed on a same side of the substrate, each of the at least one photosensitive element comprises a first electrode, a photosensitive semiconductor layer and a second electrode, the first electrode is disposed on the substrate, the photosensitive semiconductor layer is disposed on the first electrode, and the second electrode is disposed on the photosensitive semiconductor layer;
- and the at least one control transistor is in control connection with the at least one photosensitive element;
- and
- wherein each of the at least one photosensitive element further comprises a connection insulation layer disposed between the second electrode and the photosensitive semiconductor layer.
A manufacture method of a display panel, comprising:
- providing a substrate;
- preparing an active layer on the substrate, preparing a gate insulation layer on the active layer, preparing a gate on the gate insulation layer, and preparing an interlayer insulation layer on the gate, wherein the active layer comprises a source part, a drain part, and a channel part disposed between the source part and the drain part;
- defining a first through-hole and a second through-hole on the interlayer insulation layer and the gate insulation layer through a same photomask, wherein the first through-hole corresponds to the source part, and the second through-hole corresponds to the drain part;
- preparing a photosensitive semiconductor layer at least in the second through-hole, preparing a protective layer on the photosensitive semiconductor layer, and patterning the photosensitive semiconductor layer and the protective layer through a same photomask, wherein the photosensitive semiconductor layer is disposed on the drain part and is connected to the drain part;
- preparing a source-drain metal layer on the interlayer insulation layer, and patterning the source-drain metal layer to form a source connected to the source part through the first through-hole;
- preparing a planarization layer on the source-drain metal layer and the photosensitive semiconductor layer, and patterning the planarization layer to define a third through-hole;
- preparing a second transparent electrode layer on the planarization layer, preparing a first insulation layer on the second transparent electrode layer, when a fourth through-hole is defined on a part of the first insulation layer corresponding to the third through-hole, removing the protective layer inside the third through-hole by a same process, and exposing a part of the photosensitive semiconductor layer by the third through-hole;
- oxidizing, through a plasma treatment, the part of the photosensitive semiconductor layer exposed by the third through-hole to form an insulated connection insulation layer;
- and
- preparing a first transparent electrode layer on the first insulation layer, and patterning the first transparent electrode layer to form a second electrode, wherein the second electrode is connected to the connection insulation layer through the third through-hole, and is connected to the photosensitive semiconductor layer through the connection insulation layer.
Dependencies are inferred from the claim text.