Display panel pixel configuration and manufacturing method for the same

1 . A display panel comprising:

a plurality of light emitting elements;

a plurality of transistors respectively connected to the plurality of light emitting elements; and

a plurality of connection lines respectively connecting the plurality of light emitting elements to the plurality of transistors,

wherein each of the plurality of connection lines comprises:

a first connection part connected to a corresponding light emitting element among the plurality of light emitting elements; and

a second connection part connected to a corresponding transistor among the plurality of transistors,

wherein each of the plurality of light emitting elements comprises an intermediate layer, a first electrode below a lower side of the intermediate layer, and a second electrode on an upper side of the intermediate layer,

wherein the first electrodes are connected to each other to provide an integral shape, and

wherein the connection lines are apart from the first electrodes and connected to the second electrodes.

2 . The display panel of claim 1 ,

wherein the display panel includes a first area, a second area, and a third area disposed along a first direction,

wherein the display panel further includes a driving part which is disposed in the third area and is electrically connected to the plurality of the light emitting elements,

wherein the plurality of light emitting elements comprise first light emitting elements disposed in the first area, second light emitting elements disposed in the second area, and third light emitting elements disposed in the third area,

wherein the plurality of transistors comprise first transistors connected to the first light emitting elements disposed in the first area, second transistors connected to the second light emitting elements disposed in the second area, and third transistors connected to the third light emitting elements disposed in the third area,

wherein the plurality of connection lines comprise first connection lines connecting the first transistors to the first light emitting elements, second connection lines connecting the second transistors to the second light emitting elements, and third connection lines connecting the third transistors to the third light emitting elements,

wherein a third transistor among the third transistors connected to one of the third light emitting elements disposed in the third area is disposed in the second area, and

wherein the third light emitting elements disposed in the third area overlap the driving part in a plan view.

3 . The display panel of claim 2 , wherein, in each of the first to third areas, the second light emitting element and the third light emitting element are disposed in a same side from the first light emitting element, and the first light emitting element is arranged with the second light emitting element and the third light emitting element along the first direction, and

wherein the second connection part includes a plurality of second connection parts each of which is arranged between the second light emitting element and the third light emitting element along the first direction.

4 . The display panel of claim 3 , wherein each of the first connection lines, the second connection lines, and the third connection lines comprises:

a first line connected to one of the first connection part and the second connection part, and extending parallel to the first direction; and

a second line connected to the first line and bent to extend to a direction different from a direction the first line extends.

5 . The display panel of claim 4 , wherein the first line of one of the second connection lines connected to a second light emitting element among the second light emitting elements and the first line of one of the third connection lines connected to a third light emitting element among the third light emitting elements extend in opposite directions.

6 . The display panel of claim 4 ,

wherein at least one among the first connection lines, the second connection lines, and the third connection lines further comprises a third line extending in parallel to the first direction, and

wherein the third line is connected to the other of the first connection part and the second connection part which is not connected to the first line.

7 . The display panel of claim 4 ,

wherein the second line in the first area is bent at a first angle from the first line, the second line in the second area is bent at a second angle from the first line, and the second line in the third area is bent at a third angle from the first line, and

wherein the first angle is 90°, the second angle is smaller than the first angle, and the third angle is smaller than the second angle.

8 . The display panel of claim 7 , wherein, in each of the second area and the third area, the second connection lines and the third connection lines are arranged along a first row and a second row, and a slope of the second line of each of the second connection lines and the third connection lines disposed in the first row are symmetrical to a slope of the second line of each of the second connection lines and the third connection lines disposed in the second row with respect to an imaginary line between the first row and the second row.

9 . The display panel of claim 7 , wherein, in the first area, the plurality of light emitting elements comprise a fourth light emitting element, and a fifth light emitting element and a sixth light emitting element disposed in opposite sides of the fourth light emitting element along the first direction,

the plurality of transistors comprise a fourth transistor connected to the fourth light emitting element, a fifth transistor connected to the fifth light emitting element, and a sixth transistor connected to the sixth light emitting element,

the plurality of connection lines comprise a fourth connection line connecting the fourth light emitting element to the fourth transistor, a fifth connection line connecting the fifth light emitting element to the fifth transistor, and a sixth connection line connecting the sixth light emitting element to the sixth transistor,

each of the fourth connection line, the fifth connection line and the sixth connection line comprises a first line extending parallel to the first direction and a second line bent to extend to a different direction from a direction the first line extends, and

a distance between the second line of the fourth connection line connected to the fourth light emitting element and the second line of the fifth connection line connected to the fifth light emitting element is the same as a distance between the second line of the fourth connection line connected to the fourth light emitting element and the second line of the sixth connection line connected to the sixth light emitting element in the plan view.

10 . The display panel of claim 1 , wherein the intermediate layer comprises a light emitting layer.

11 . The display panel of claim 10 , wherein the intermediate layer further comprises a functional layer disposed between the first electrode and the light emitting layer, or between the light emitting layer and the second electrode.

12 . A display panel comprising:

a transistor;

a light emitting element disposed on the transistor; and

a connection line connecting the transistor to the light emitting element,

wherein the light emitting element comprises a first electrode disposed on the connection line, an intermediate layer formed on the first electrode, and a second electrode formed on the intermediate layer, and the first electrode, the intermediate layer and the second electrode are sequentially laminated in a thickness direction,

wherein the connection line comprises:

a first connection part connected to the second electrode and apart from the first electrode; and

a second connection part connected to the transistor, and

wherein the first electrode below the intermediate layer is connected to a first electrode of an adjacent light emitting element and forms an integral shape with the first electrode of the adjacent light emitting element.

13 . The display panel of claim 12 , wherein the connection line comprises an undercut portion disposed under a tip part.

14 . The display panel of claim 13 , wherein the connection line comprises a first layer, a second layer, and a third layer, and

wherein a side surface of the third layer protrudes from a side surface of the second layer to form the tip part.

15 . The display panel of claim 14 , wherein the second electrode includes a first side and a second side, and the tip part separates the first side from the second side, and

the first side of the second electrode contacts the side surface of the second layer.

16 . The display panel of claim 13 , wherein the intermediate layer comprises a light emitting layer and a functional layer, and

wherein the functional layer is disconnected at the undercut portion by the tip part.

17 . The display panel of claim 13 , further comprising:

a capping pattern overlapping the tip part in a plan view,

wherein the capping pattern is disconnected at the undercut portion by the tip part and is disposed between the second electrode and the tip part.

18 . The display panel of claim 13 , further comprising:

a pixel defining layer comprising an opening exposing a portion of the first electrode and disposed on the first electrode; and

a separator comprising an insulation material and disposed on the pixel defining layer,

wherein the second electrode is disconnected by the separator.

19 . The display panel of claim 12 , wherein the transistor is an N-type oxide semiconductor transistor.

20 . A manufacturing method of a display panel comprising:

providing a transistor and a first intermediate insulation layer covering the transistor on a base layer;

providing a connection line connected to the transistor through a contact hole on the first intermediate insulation layer;

providing a second intermediate insulation layer covering the connection line;

providing a first opening in the second intermediate insulation layer to expose one side of the connection line;

etching the exposed one side of the connection line to provide a tip part, wherein the connection line contacts the first intermediate insulation layer, and the tip part is apart from the first intermediate insulation layer in a cross-sectional view;

providing a first electrode on the second intermediate insulation layer;

providing a second opening exposing the tip part and a pixel defining layer in which an emitting opening exposing the first electrode is defined;

providing an intermediate layer on the pixel defining layer; and

providing a second electrode on the intermediate layer to be connected to the tip part.

21 . The manufacturing method of claim 20 ,

wherein the connection line comprises a first layer, a second layer, and a third layer, and

a side surface of the third layer protrudes from a side surface of the second layer to form the tip part, and the second electrode is connected to the side surface of the second layer.

22 . The manufacturing method of claim 20 , further comprising:

providing a separator on the pixel defining layer,

wherein the separator surrounds the tip part and the first electrode, and

wherein, in the step of providing of the second electrode, the second electrode is disconnected by the separator, and a first portion disposed on a top portion of the separator and a second portion surrounding the separator and disconnected from the first portion are formed.

23 . The manufacturing method of claim 20 , wherein the intermediate layer comprises a light emitting layer.

24 . The manufacturing method of claim 23 , wherein the intermediate layer further comprises a functional layer disposed between the first electrode and the light emitting layer, or between the light emitting layer and the second electrode.