Display panel and mobile terminal
AssigneeWuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
InventorWei Wang
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Abstract
A display panel and a mobile terminal are disclosed in the present disclosure. The display panel includes a substrate and a pixel driving circuit layer. The pixel driving circuit layer includes a plurality of pixel driving circuits, and each of the pixel driving circuits at least includes a compensation transistor and a shielding component. An orthogonal projection of the shielding component projected on the substrate at least partially overlaps an orthogonal projection of the compensation transistor projected on the substrate, so that the compensation transistor is not affected by a potential of the substrate, thereby enhancing the reliability of currents of the pixel driving circuits.
Claims20
A display panel comprising a substrate and a pixel driving circuit layer disposed on the substrate, wherein the pixel driving circuit layer comprises a plurality of pixel driving circuits, and each of the pixel driving circuits at least comprises a compensation transistor;
- wherein the display panel further comprises a shielding component disposed between the substrate and the compensation transistor of each of the pixel driving circuits, and an orthogonal projection of the shielding component projected on the substrate at least partially overlaps an orthogonal projection of the compensation transistor of the each of the pixel driving circuits projected on the substrate;
- wherein the compensation transistor of the each of the pixel driving circuits comprises a first semiconductor layer located on the substrate, a first gate layer located on the first semiconductor layer, and a first source/drain layer located on the first gate layer;
- wherein the compensation transistor of the each of the pixel driving circuits is a dual-gate structure, the first gate layer comprises a first gate and a second gate disposed on a same layer and spaced apart from each other;
- and
- wherein the first semiconductor layer comprises a first channel region corresponding to the first gate and a second channel region corresponding to the second gate, and a sum of a width of the first channel region and a width of the second channel region is greater than or equal to 5 microns.
A mobile terminal comprising a display panel and a terminal body, wherein the terminal body and the display panel are combined into one, the display panel comprises a substrate and a pixel driving circuit layer disposed on the substrate, the pixel driving circuit layer comprises a plurality of pixel driving circuits, and each of the pixel driving circuits at least comprises a compensation transistor;
- wherein the display panel further comprises a shielding component disposed between the substrate and the compensation transistor of each of the pixel driving circuits, and an orthogonal projection of the shielding component projected on the substrate at least partially overlaps an orthogonal projection of the compensation transistor of the each of the pixel driving circuits projected on the substrate;
- wherein the compensation transistor of the each of the pixel driving circuits comprises a first semiconductor layer located on the substrate, a first gate layer located on the first semiconductor layer, and a first source/drain layer located on the first gate layer;
- wherein the compensation transistor of the each of the pixel driving circuits is a dual-gate structure, the first gate layer comprises a first gate and a second gate disposed on a same layer and spaced apart from each other;
- and
- wherein the first semiconductor layer comprises a first channel region corresponding to the first gate and a second channel region corresponding to the second gate, and a sum of a width of the first channel region and a width of the second channel region is greater than or equal to 5 microns.
Dependencies are inferred from the claim text.