Display panel manufacturing method and display panel
View Patent ↗An embodiment of the present application discloses a display panel manufacturing method and a display panel including a driver transistor, a storage capacitor, a switch transistor, and a sensing transistor vertically stacked. At leas two transistors are vertically stacked to solve a technical issue that a pixel in a conventional display panel employs a pixel circuit design of transistors and capacitors arranged along a direction parallel to the display panel to cause a lowered pixel density of the display panel to result in a lowered resolution of a display panel product.
1. A display panel, comprising:
an underlay substrate;
at least one pixel circuit disposed on the underlay substrate, and comprising:
a driver transistor disposed on the underlay substrate;
a storage capacitor disposed on the underlay substrate and electrically connected to the driver transistor;
a switch transistor disposed on the underlay substrate;
a sensing transistor disposed on the underlay substrate; and
a light emitting diode disposed on the underlay substrate and electrically connected to the driver transistor and the sensing transistor;
wherein an orthogonal projection of the switch transistor on the underlay substrate at least partially overlaps an orthogonal projection of the driver transistor on the underlay substrate;
wherein the switch transistor, the sensing transistor, the storage capacitor, and the driver transistor are arranged in an array of two rows extending along a direction parallel to the underlay substrate with the rows arranged along a direction perpendicular to the underlay substrate, an upper one of the two rows includes the switch transistor and the sensing transistor, and a lower one of the two rows includes the storage capacitor and the driver transistor;
wherein the driver transistor is disposed between the switch transistor and the underlay substrate, and the storage capacitor is disposed between the sensing transistor and the underlay substrate.
2. The display panel according to claim 1 , wherein the orthogonal projection of the sensing transistor on the underlay substrate at least partially overlaps the orthogonal projection of the driver transistor on the underlay substrate, or at least partially overlaps the orthogonal projection of the storage capacitor on the underlay substrate.
3. The display panel according to claim 1 , wherein
the storage capacitor and the driver transistor are arranged along the direction parallel to the underlay substrate;
the switch transistor and the driver transistor are arranged along the direction perpendicular to the underlay substrate; and
the sensing transistor and the driver transistor are arranged along the direction parallel to the underlay substrate, and the sensing transistor and the storage capacitor are arranged along the direction perpendicular to the underlay substrate.
4. The display panel according to claim 1 , wherein the storage capacitor comprises a first electrode plate and a second electrode plate, the first electrode plate and a second source electrode or a second drain electrode of the driver transistor are disposed in a same layer, and the second electrode plate and an electrode layer connected to the light emitting diode are disposed in a same layer.
5. The display panel according to claim 4 , wherein the first electrode plate and the second electrode plate of the storage capacitor and the sensing transistor are arranged along a direction perpendicular to the underlay substrate, and the sensing transistor is located between the first electrode plate and the second electrode plate.
6. The display panel according to claim 1 , wherein:
the second source electrode or the second drain electrode of the driver transistor is grounded;
an end of the storage capacitor is grounded;
a first source electrode or a first drain electrode of the switch transistor is electrically connected to another end of the second gate electrode and the storage capacitor; and
a third source electrode or a third drain electrode of the sensing transistor is grounded.
7. A display panel, comprising:
an underlay substrate;
at least one pixel circuit disposed on the underlay substrate, and comprising:
a driver transistor disposed on the underlay substrate;
a storage capacitor disposed on the underlay substrate and electrically connected to the driver transistor;
a switch transistor disposed on the underlay substrate;
a sensing transistor disposed on the underlay substrate; and
a light emitting diode disposed on the underlay substrate and electrically connected to the driver transistor and the sensing transistor;
wherein an orthogonal projection of the switch transistor on the underlay substrate at least partially overlaps an orthogonal projection of the driver transistor on the underlay substrate;
wherein the orthogonal projection of the sensing transistor on the underlay substrate at least partially overlaps the orthogonal projection of the driver transistor on the underlay substrate, or at least partially overlaps the orthogonal projection of the storage capacitor on the underlay substrate;
wherein the storage capacitor and the driver transistor are arranged along a direction parallel to the underlay substrate; and
wherein the switch transistor and the driver transistor are arranged along a direction perpendicular to the underlay substrate;
wherein the switch transistor, the sensing transistor, the storage capacitor, and the driver transistor are arranged an array of two rows extending along the direction parallel to the underlay substrate with the rows arranged along the direction perpendicular to the underlay substrate, an upper one of the two rows includes the switch transistor and the sensing transistor, and a lower one of the two rows includes the storage capacitor and the driver transistor;
wherein the driver transistor is disposed between the switch transistor and the underlay substrate, and the storage capacitor is disposed between the sensing transistor and the underlay substrate.
8. The display panel according to claim 7 , wherein the sensing transistor and the driver transistor are arranged along the direction parallel to the underlay substrate.
9. The display panel according to claim 8 , wherein the sensing transistor and the storage capacitor are arranged along the direction perpendicular to the underlay substrate.
10. The display panel according to claim 7 , wherein the storage capacitor comprises a first electrode plate and a second electrode plate, the first electrode plate and a second source electrode or a second drain electrode of the driver transistor are disposed in a same layer, and the second electrode plate and an electrode layer connected to the light emitting diode are disposed in a same layer.
11. The display panel according to claim 8 , wherein the first electrode plate and the second electrode plate of the storage capacitor and the sensing transistor are arranged along a direction perpendicular to the underlay substrate.
12. The display panel according to claim 7 , wherein the sensing transistor is located between the first electrode plate and the second electrode plate.
13. The display panel according to claim 7 , wherein
the second source electrode or the second drain electrode of the driver transistor is grounded; and
an end of the storage capacitor is grounded.
14. The display panel according to claim 13 , wherein a first source electrode or a first drain electrode of the switch transistor is electrically connected to another end of the second gate electrode and the storage capacitor.
15. The display panel according to claim 13 , wherein a third source electrode or a third drain electrode of the sensing transistor is grounded.