Display panel and display device
AssigneeShenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
InventorChuanbao Luo
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Abstract
The present application provides a display panel and a display device. The display panel includes a substrate and a plurality of light-sensing units disposed on the substrate. The light-sensing unit includes a light-sensing transistor and a reading transistor connected in series. The light-sensing transistor includes a first active layer. The reading transistor includes a second active layer. A material of the first active layer and a material of the second active layer are both oxide semiconductors.
Claims20
A display panel, comprising a substrate, a plurality of light-sensing units disposed on the substrate, and a driving unit disposed on the substrate,
- wherein each of the light-sensing units comprises a light-sensing transistor and a reading transistor connected in series, the light-sensing transistor comprises a first active layer, and the reading transistor comprises a second active layer;
- and
- wherein a material of the first active layer and a material of the second active layer are both oxide semiconductors;
- wherein the driving unit comprises a driving transistor, the driving transistor comprises a third active layer, and a material of the third active layer is an oxide semiconductor;
- and
- wherein an oxygen vacancy concentration of the material of the first active layer is greater than an oxygen vacancy concentration of the material of the third active layer, and a Fermi energy level of the material of the first active layer is greater than a Fermi energy level of the material of the third active layer.
A display panel, comprising a substrate and a plurality of light-sensing units and a driving unit disposed on the substrate, wherein each of the light-sensing units comprises a light-sensing transistor and a reading transistor connected in series, the light-sensing transistor comprises a first active layer, the reading transistor comprises a second active layer, the driving unit comprises a driving transistor, and the driving transistor comprises a third active layer;
- and
- wherein a material of the first active layer, a material of the second active layer, and a material of the third active layer are all oxide semiconductors, a Fermi energy level of the material of the first active layer is greater than a Fermi energy level of the material of the second active layer and a Fermi energy level of the material of the third active layer, and an oxygen vacancy concentration of the material of the first active layer is greater than an oxygen vacancy concentration of the material of the second active layer and an oxygen vacancy concentration of the material of the third active layer.
A display device, comprising a display panel, wherein the display panel comprises a substrate, a plurality of light-sensing units disposed on the substrate, and a driving unit disposed on the substrate, each of the light-sensing units comprises a light-sensing transistor and a reading transistor connected in series, the light-sensing transistor comprises a first active layer, and the reading transistor comprises a second active layer;
- and
- wherein a material of the first active layer and a material of the second active layer are both oxide semiconductors;
- wherein the driving unit comprises a driving transistor, the driving transistor comprises a third active layer, and a material of the third active layer is an oxide semiconductor;
- and
- wherein an oxygen vacancy concentration of the material of the first active layer is greater than an oxygen vacancy concentration of the material of the third active layer, and a Fermi energy level of the material of the first active layer is greater than a Fermi energy level of the material of the third active layer.
Dependencies are inferred from the claim text.