Array substrate, display panel, and display apparatus

1. An array substrate comprising:

a substrate; and

a first thin-film transistor located on the substrate,

wherein the first thin-film transistor comprises a channel and a gate electrode, wherein an orthographic projection of the gate electrode on the substrate overlaps with an orthographic projection of the channel on the substrate;

wherein the gate electrode has a first zone and a second zone that are arranged in a first direction;

wherein the channel overlapping with the first zone in a direction perpendicular to the substrate has a total width W 1 in a second direction perpendicular to the first direction, wherein the channel overlapping with the second zone in a direction perpendicular to the substrate has a total width W 2 in the second direction, and wherein W 1 /W 2 ≤3; and

wherein the substrate, the channel, and the gate electrode are sequentially arranged in the first direction, and a projection of the substrate on the channel is continuous and has an integral pattern.

2. The array substrate according to claim 1 , wherein the channel comprises at least one first subsection and at least one second subsection, wherein each of the at least one first subsection extends in a third direction, wherein each of the at least one second subsection extends in the first direction, and wherein an angle θ formed between the third direction and the second direction satisfies 0°<θ<90°;

wherein in the direction perpendicular to the substrate, the first zone overlaps with one of the at least one first subsection and the second zone overlaps with one of the at least one second subsection; and

wherein one of the at least one first subsection has a width Wi in the second direction and one of the at least one second subsection has a width W 2 in the second direction.

3. The array substrate according to claim 2 , wherein sinθ=W 2 /W 1 .

4. The array substrate according to claim 2 , wherein 19.5°≤θ<90°.

5. The array substrate according to claim 2 , wherein one of the at least one first subsection has a width W 3 in a direction perpendicular to the third direction, and wherein W 3 <W 2 .

6. The array substrate according to claim 2 , wherein the at least one second subsection comprises at least two second subsections, wherein one of the at least one first subsection of the channel comprises two ends, and wherein each of which is connected to one of the at least two second subsections; and

wherein a number of the at least one first subsection is n1, and wherein a number of the at least two second subsections is n2, where n1 and n2 each are a positive integer, and

n 1+1 =n 2.

7. The array substrate according to claim 1 , wherein the channel comprises at least one third subsection and at least one fourth subsection, wherein each of the at least one fourth subsection extends along the first direction, wherein each of the at least one fourth subsection extends along the second direction, and wherein at least one end of one of the at least one fourth subsection is connected to one of the at least one third subsection.

8. The array substrate according to claim 7 , wherein the at least one third subsection comprises at least two third subsections, wherein a number of the at least two third subsections is m2, wherein a number of the at least one fourth subsection is m2, wherein m2 and m2 each are a positive integer, and wherein m1≥m2.

9. The array substrate according to claim 7 , wherein the first zone overlaps with a partial region of one of the at least one fourth subsection and a partial region of one of the at least one third subsection in the direction perpendicular to the substrate, wherein one of the at least one fourth subsection has a total length D 1 in the second direction, wherein the partial region of the one of the at least one third subsection has a total width D 2 in the second direction, and wherein W 1 =D 1 +D 2 ; and

wherein at least one of the at least one third subsection partially overlaps with the second zone in the direction perpendicular to the substrate and has a total width of W 2 in the second direction.

10. The array substrate according to claim 7 , wherein one of the at least one third subsection overlaps with the first zone in the direction perpendicular to the substrate and has a total width of W 1 in the second direction; and

wherein one of the at least one fourth subsection overlaps with the second zone in the direction perpendicular to the substrate and has a total width of W 2 in the second direction.

11. The array substrate according to claim 7 , wherein one of the at least one fourth subsection overlaps with the first zone in the direction perpendicular to the substrate and has a total width of W 1 in the second direction; and

wherein one of the at least one third subsection overlaps with the second zone in the direction perpendicular to the substrate and has a total width of W 2 in the second direction.

12. The array substrate according to claim 7 , wherein at least a portion of an orthographic projection of the channel on the substrate has a shape of a Chinese character “ ”.

13. The array substrate according to claim 12 , wherein the at least one third subsection comprises at least two third subsections, wherein one of the at least two third subsections has a width of D 3 in the second direction, wherein a space between two adjacent third subsections of the at least two third subsections in the second direction is D 4 , and wherein D 4 ≤4D 3 .

14. The array substrate according to claim 7 , further comprising:

a connection portion connected to the channel, wherein the gate electrode comprises a body and at least one protrusion, wherein one of the at least one protrusion is connected to one of ends of the body in the second direction and has a width smaller than a width of the body in the first direction;

wherein a first edge of the body in the first direction is connected to a second edge of one of the at least one protrusion in the second direction to form an outer corner, and wherein an orthographic projection of the connection portion on the substrate is located within an orthographic projection of the outer corner on the substrate.

15. The array substrate according to claim 14 , wherein, in the direction perpendicular to the substrate, an extension line of at least a portion of one of the at least one fourth subsection in its extension direction overlaps with the first edge.

16. The array substrate according to claim 14 , wherein the at least one protrusion comprises two protrusions located at two ends of the body in the second direction, respectively; wherein the gate electrode has two outer corners, and wherein two openings of the two outer corners are opposite to each other.

17. The array substrate according to claim 1 , wherein W 1 /W 2 ≤2.

18. The array substrate according to claim 1 , wherein the channel is made of a material comprising silicon.

19. A display panel, comprising an array substrate, wherein the array substrate comprises a substrate and a first thin-film transistor located on the substrate,

wherein the first thin-film transistor comprises a channel and a gate electrode, wherein an orthographic projection of the gate electrode on the substrate overlaps with an orthographic projection of the channel on the substrate;

wherein the gate electrode has a first zone and a second zone that are arranged in a first direction;

wherein the channel overlapping with the first zone in a direction perpendicular to the substrate has a total width W 1 in a second direction perpendicular to the first direction, wherein the channel overlapping with the second zone in a direction perpendicular to the substrate has a total width W 2 in the second direction, and wherein W 1 /W 2 ≤3; and

wherein the substrate, the channel, and the gate electrode are sequentially arranged in the first direction, and a projection of the substrate on the channel is continuous and has an integral pattern.

20. A display apparatus, comprising the display panel according to claim 19 .