Organic light emitting display panel

Abstract

The invention discloses an organic light-emitting display panel which comprises a display area and a redundant pixel area arranged around the display area, and the part, located in the redundant pixel area, of the organic light-emitting display panel comprises a metal reflection layer, a first pixel definition layer, an organic functional layer and a bullet-attaching correction layer. The metal reflecting layer is arranged on a substrate of the organic light-emitting display panel, the first pixel defining layer is arranged on one side, far away from the substrate, of the metal reflecting layer and comprises a plurality of first retaining walls, a first slotting part is arranged between every two adjacent first retaining walls, and a second slotting part is arranged between every two adjacent first retaining walls. The organic functional layer is arranged on the side, away from the substrate, of the metal reflecting layer, and the organic functional layer is located in the first slotting part. The organic light-emitting display panel has the advantage that the problem that the uniformity of the organic light-emitting layer of the display part of the organic light-emitting display panel is poor can be solved.

Description

Technical Field

[0001] The present application relates to the field of display technologies, and particularly to an organic light-emitting display panel. Background Art

[0002] Organic Light-Emitting Diode (OLED) is regarded as a new generation of display technology, having advantages such as high responsiveness, high contrast ratio, and flexibility. Ink Jet Printing (IJP) in the film-forming technology of OLED display panels has a high material utilization rate and is considered an important way to achieve mass production of large-size OLEDs.

[0003] When manufacturing an OLED display panel, ink droplets are first dropped into the pixel-defined area of a substrate by an inkjet printer, and then the solvent is removed by the method of "vacuum evaporation" to dry the solute to form the required organic light-emitting layer. Since the solvent atmosphere in the edge area of the display part of the substrate corresponding to the OLED display panel is different from that in the middle area, the solvent in the edge area of the display part of the substrate volatilizes faster than that in the middle area, resulting in a large difference in the drying degree between the edge area and the middle area of the display part of the substrate, and thus the uniformity of the organic light-emitting layer in the display part of the OLED display panel is poor, affecting the display effect. Summary of the Invention

[0004] Embodiments of the present application provide an organic light-emitting display panel to improve the problem of poor uniformity of the organic light-emitting layer in the display part of the organic light-emitting display panel.

[0005] In a first aspect, embodiments of the present application provide an organic light-emitting display panel, including a display area and a redundant pixel area disposed around the display area. The part of the organic light-emitting display panel located in the redundant pixel area includes:

[0006] A metal reflection layer, which is disposed on the substrate of the organic light-emitting display panel;

[0007] A first pixel definition layer, which is disposed on a side of the metal reflection layer away from the substrate. The first pixel definition layer includes a plurality of first barriers, and a first slot is provided between two adjacent first barriers;

[0008] An organic functional layer, which is disposed on a side of the metal reflection layer away from the substrate, and the organic functional layer is located in the first slot;

[0009] A landing correction layer, which is disposed on a surface of the first pixel definition layer away from the substrate. The landing correction layer includes a plurality of landing correction parts;

[0010] Among them, in a top view of the organic light-emitting display panel, the landing correction portion overlaps with a part of the first barrier wall.

[0011] Furthermore, the portion of the organic light-emitting display panel within the display area includes:

[0012] A second pixel definition layer, which is disposed on the substrate. The second pixel definition layer includes a plurality of second barrier walls, and a second slotted portion is provided between two adjacent second barrier walls;

[0013] An anode layer, which is disposed within the second slotted portion;

[0014] An organic light-emitting layer, which is disposed on a surface of the anode layer away from the substrate;

[0015] Among them, in a top view of the organic light-emitting display panel, the landing correction layer does not overlap with the second barrier wall.

[0016] Furthermore, the first pixel definition layer further includes a third barrier wall, which is located between the second barrier wall and the first barrier wall. A third slotted portion is provided between the third barrier wall and the second barrier wall; in a top view of the organic light-emitting display panel, the third slotted portion does not overlap with the organic functional layer.

[0017] Furthermore, the width of the first barrier wall away from the display area is greater than the width of the second barrier wall away from the redundant pixel area.

[0018] Furthermore, the organic light-emitting layer includes a hole transport layer, a light-emitting layer, and an electron transport layer;

[0019] The number of the first barrier walls is at least 3. Among them, the material of the landing correction portion on at least one of the first barrier walls is the same as the material of the hole transport layer, the material of the landing correction portion on at least one of the first barrier walls is the same as the material of the light-emitting layer, and the material of the landing correction portion on at least one of the first barrier walls is the same as the material of the electron transport layer.

[0020] Furthermore, the metal reflective layer is disposed on the same layer as the anode layer.

[0021] Furthermore, the width of the opening of the third slotted portion is smaller than the width of the opening of the second slotted portion, and the ratio of the width of the opening of the third slotted portion to the width of the opening of the first slotted portion is not less than 0.5.

[0022] Further, the metal reflection layer includes a plurality of first metal reflection portions and a second metal reflection portion. The plurality of first metal reflection portions are connected. The second metal reflection portion is located between the first metal reflection portion and the anode layer, and the second metal reflection portion is spaced apart from the first metal reflection portion and the anode layer. Among them, in a top view of the organic light-emitting display panel, the first metal reflection portion overlaps with the first slotted portion, and the second metal reflection portion overlaps with the third slotted portion.

[0023] Further, the metal reflection layer is formed over the entire surface of the substrate. Among them, in a top view of the organic light-emitting display panel, a part of the metal reflection layer overlaps with the first slotted portion and the third slotted portion.

[0024] Further, the width of the opening of the first slotted portion is greater than the width of the opening of the second slotted portion.

[0025] Advantages of the present application:

[0026] The present application provides an organic light-emitting display panel. By setting the portion of the organic light-emitting display panel located in the redundant pixel region to include a metal reflection layer, a first pixel definition layer, an organic functional layer, and a landing correction layer, and disposing the metal reflection layer on the substrate of the organic light-emitting display panel, the first pixel definition layer is disposed on a side of the metal reflection layer away from the substrate. The first pixel definition layer includes a plurality of first barriers, and a first slotted portion is provided between two adjacent first barriers. The organic functional layer is disposed on a side of the metal reflection layer away from the substrate, and the organic functional layer is located within the first slotted portion. When manufacturing the organic light-emitting display panel, the setting of the redundant pixel region can change the atmosphere in the edge region of the display region, making the solvent evaporation rate in the edge region of the display region closer to the solvent evaporation rate in the middle region of the display region, thereby facilitating improving the thickness uniformity of the organic light-emitting layer in the middle region and the edge region of the display region, enhancing the light emission uniformity and yield of the organic light-emitting display panel. And because the landing correction layer is disposed on a surface of the first pixel definition layer in the redundant pixel region away from the substrate, and the landing correction layer includes a plurality of landing correction portions. In a top view of the organic light-emitting display panel, the landing correction portion overlaps with a part of the first barrier, enabling the landing position of the ink droplets of the inkjet printing device to be corrected according to the positions of the plurality of landing correction portions on the first barrier before printing the organic light-emitting layer of the organic light-emitting display panel, thereby avoiding the problem of color bleeding in the display of the organic light-emitting display panel caused by the printing deviation of the organic light-emitting layer. At the same time, since the landing correction of the ink droplets of the inkjet printing device can be directly performed in the redundant pixel region of the organic light-emitting display panel, there is no need to additionally provide a substrate for the landing correction of the ink droplets of the inkjet printing device, thereby also saving the manufacturing cost of the organic light-emitting display panel. Description of the Drawings

[0027] Figure 1 is a schematic diagram of an organic light-emitting display panel of a conventional solution;

[0028] Figure 2 is Figure 1 an enlarged view of position A of the organic light-emitting display panel shown;

[0029] Figure 3 is Figure 1 an enlarged view of position B of the organic light-emitting display panel shown;

[0030] Figure 4 is a top view of the organic light-emitting display panel of the present application;

[0031] Figure 5 is a structural diagram of the organic light-emitting display panel of the present application;

[0032] Figure 6 is a schematic diagram of the first structure during the preparation of the organic light-emitting display panel of the present application;

[0033] Figure 7 is a schematic diagram of the second structure during the preparation of the organic light-emitting display panel of the present application;

[0034] Figure 8 is a schematic diagram of the ink droplet before the landing position correction of the organic light-emitting display panel of the present application;

[0035] Figure 9 is a schematic diagram of the ink droplet after the landing position correction of the organic light-emitting display panel of the present application.

[0036] 10 - Organic light-emitting display panel; 100 - Substrate; 200 - Metal reflection layer, 210 - First metal reflection part, 220 - Second metal reflection part; 300 - First pixel definition layer, 310 - First barrier wall, 320 - First slotted part, 330 - Third barrier wall, 340 - Third slotted part; 400 - Organic functional layer; 500 - Landing correction layer, 510 - Landing correction part; 600 - Second pixel definition layer, 610 - Second barrier wall, 620 - Second slotted part; 700 - Anode layer; 800 - Organic light-emitting layer.

[0037] 01 - Organic light-emitting layer. Detailed Embodiments

[0038] Next, the technical solutions in the embodiments of the present application will be described with reference to the accompanying drawings in the embodiments of the present application. The technical solutions described below are only used to explain and illustrate the idea of the present application, and should not be regarded as a limitation on the protection scope of the present application.

[0039] In addition, the terms "first", "second" and similar terms do not denote any order, quantity or importance, but are only used to distinguish different technical features. The term "plurality" and similar terms mean two or more, unless otherwise clearly defined.

[0040] When manufacturing an OLED display panel, first, an inkjet printer is used to drop ink droplets into the pixel defining area of a substrate, and then the solvent is removed by means of "reduced-pressure evaporation" to dry the solute to form a required organic light-emitting layer. Refer to Figures 1-3 , due to the different atmospheres of the solvent in the edge area and the middle area of the display part of the substrate corresponding to the OLED display panel, the solvent in the edge area of the display part of the substrate volatilizes faster than that in the middle area, resulting in a large difference in the drying degree between the edge area and the middle area of the display part of the substrate, and the uniformity of the organic light-emitting layer 01 at the edge of the display part of the OLED display panel is poor, affecting the display effect.

[0041] The first embodiment of the present application provides an organic light-emitting display panel 10. Refer to Figures 4-7 , the organic light-emitting display panel 10 includes a display area AA and a redundant pixel area BB1 arranged around the display area AA. The part of the organic light-emitting display panel 10 located in the redundant pixel area BB1 includes a metal reflection layer 200, a first pixel definition layer 300, an organic functional layer 400 and a landing correction layer 500.

[0042] Specifically, the metal reflection layer 200 is disposed on the substrate 100 of the organic light-emitting display panel 10; the first pixel definition layer 300 is disposed on the side of the metal reflection layer 200 away from the substrate 100. The first pixel definition layer 300 includes a plurality of first barriers 310, and a first slot 320 is provided between two adjacent first barriers 310; the organic functional layer 400 is disposed on the side of the metal reflection layer 200 away from the substrate 100, and the organic functional layer 400 is located in the first slot 320; the landing correction layer 500 is disposed on a surface of the first pixel definition layer 300 away from the substrate 100. The landing correction layer 500 includes a plurality of landing correction parts 510; wherein, in a top view of the organic light-emitting display panel 10, the landing correction part 510 overlaps with a part of the first barrier 310.

[0043] The organic light-emitting display panel 10 of the technical solution of the present application is provided such that the portion of the organic light-emitting display panel 10 located in the redundant pixel region BB1 includes a metal reflection layer 200, a first pixel definition layer 300, an organic functional layer 400, and a landing correction layer 500. The metal reflection layer 200 is disposed on the substrate 100 of the organic light-emitting display panel 10. The first pixel definition layer 300 is disposed on the side of the metal reflection layer 200 away from the substrate 100. The first pixel definition layer 300 includes a plurality of first barriers 310, and a first slot portion 320 is provided between two adjacent first barriers 310. The organic functional layer 400 is disposed on the side of the metal reflection layer 200 away from the substrate 100, and the organic functional layer 400 is located within the first slot portion 320. When manufacturing the organic light-emitting display panel 10, the setting of the redundant pixel region BB1 can change the atmosphere in the edge region of the display region AA, making the solvent evaporation rate in the edge region of the display region AA closer to the solvent evaporation rate in the middle region of the display region AA, thereby facilitating the improvement of the thickness uniformity of the organic light-emitting layer 800 in the middle region and the edge region of the display region AA, and enhancing the light emission uniformity and yield of the organic light-emitting display panel 10. And since the landing correction layer 500 is disposed on the surface of the first pixel definition layer 300 in the redundant pixel region BB1 away from the substrate 100, and the landing correction layer 500 includes a plurality of landing correction portions 510, in the top view of the organic light-emitting display panel 10, the landing correction portions 510 overlap a part of the first barrier 310, so that before printing the organic light-emitting layer 800 of the organic light-emitting display panel 10, the landing position of the ink droplets of the inkjet printing device can be corrected according to the positions of the plurality of landing correction portions 510 on the first barrier 310, thereby avoiding the problem of color bleeding in the display of the organic light-emitting display panel 10 caused by the printing deviation of the organic light-emitting layer 800. At the same time, since the landing correction of the ink droplets of the inkjet printing device can be directly performed in the redundant pixel region BB1 of the organic light-emitting display panel 10, there is no need to additionally provide a substrate 100 for the landing correction of the ink droplets of the inkjet printing device, thereby also saving the manufacturing cost of the organic light-emitting display panel 10.

[0044] In this embodiment, referring to Figure 4 , the organic light-emitting display panel 10 further includes a non-display region BB, wherein the redundant pixel region BB1 is located within the non-display region BB.

[0045] In this embodiment, referring to Figure 5, the portion of the organic light-emitting display panel 10 located within the display area AA includes a second pixel defining layer 600, an anode layer 700, and an organic light-emitting layer 800; the second pixel defining layer 600 is disposed on the substrate 100, the second pixel defining layer 600 includes a plurality of second barriers 610, and a second slotted portion 620 is provided between two adjacent second barriers 610; the anode layer 700 is disposed within the second slotted portion 620; the organic light-emitting layer 800 is disposed on a surface of the anode layer 700 away from the substrate 100; wherein, in a top view of the organic light-emitting display panel 10, the bullet impact correction layer 500 does not overlap with the second barrier 610. By providing that the portion of the organic light-emitting display panel 10 located within the display area AA includes a second pixel defining layer 600, an anode layer 700, and an organic light-emitting layer 800; the second pixel defining layer 600 is disposed on the substrate 100, the second pixel defining layer 600 includes a plurality of second barriers 610, and a second slotted portion 620 is provided between two adjacent second barriers 610; the anode layer 700 is disposed within the second slotted portion 620; the organic light-emitting layer 800 is disposed on a surface of the anode layer 700 away from the substrate 100; in a top view of the organic light-emitting display panel 10, the bullet impact correction layer 500 does not overlap with the second barrier 610; that is, in the display area AA of the organic light-emitting display panel 10, the organic functional layer 400 having the same material as the organic light-emitting layer 800 is not formed on the second barrier 610, thereby avoiding the influence on the display of the organic light-emitting display panel 10 caused by the organic functional layer 400 being located on the second barrier 610 in the display area AA of the organic light-emitting display panel 10. In this embodiment, the material of the organic functional layer 400 is the same as the material of the organic light-emitting layer 800.

[0046] In this embodiment, the second pixel defining layer 600 and the first pixel defining layer 300 are provided on the same layer.

[0047] In this embodiment, the material of the anode layer 700 is the same as that of the metal reflective layer 200. In this embodiment, the first pixel defining layer 300 further includes a third barrier wall 330, the third barrier wall 330 is located between the second barrier wall 610 and the first barrier wall 310, and a third slotted portion 340 is provided between the third barrier wall 330 and the second barrier wall 610; in a top view of the organic light-emitting display panel 10, the third slotted portion 340 does not overlap with the organic functional layer 400. By providing that the first pixel defining layer 300 further includes a third barrier wall 330, the third barrier wall 330 is located between the second barrier wall 610 and the first barrier wall 310, and a third slotted portion 340 is provided between the third barrier wall 330 and the second barrier wall 610; in a top view of the organic light-emitting display panel 10, the third slotted portion 340 does not overlap with the organic functional layer 400, the third slotted portion 340 can serve as a buffer area to prevent the ink for fabricating the organic functional layer 400 from overflowing into the display area AA and reducing the uniformity of the organic light-emitting layer 800 in the display area AA.

[0048] In this embodiment, referring to Figure 5 , the width c of the first barrier wall 310 away from the display area is greater than the width d of the second barrier wall 610 away from the redundant pixel area. By providing that the width c of the surface of the first barrier wall 310 on the side away from the substrate 100 is greater than the width d of the surface of the second barrier wall 610 on the side away from the substrate 100, the width of the first barrier wall 310 is increased, so that the first barrier wall 310 can have sufficient space to ensure that the ink droplets sprayed by the inkjet printing device can stand stably on the first barrier wall 310.

[0049] Specifically, the width c of the surface of the first barrier wall 310 on the side away from the substrate 100 is greater than the width d of the surface of the second barrier wall 610 on the side away from the substrate 100.

[0050] In this embodiment, the width c of the first barrier wall 310 is 10um to 100um. Preferably, the width of the first barrier wall 310 is 10um, 15um, 20um, 25um, 30um, 35um, 40um, 45um, 50um, 55um, 60um, 65um, 70um, 75um, 80um, 85um, 90um, 95um or 100um.

[0051] In this embodiment, the material of the first pixel definition layer 300 is a light-transmitting material. By setting the material of the first pixel definition layer 300 as a light-transmitting material, when compensating the landing position of the inkjet printing device, the light reflected by the metal reflection layer 200 can pass through the first pixel definition layer 300 and act on the outside world, so that the position of the ink droplets on the first retaining wall 310 of the first pixel definition layer 300 can be more easily observed, facilitating subsequent compensation of the landing position of the inkjet printing device.

[0052] In this embodiment, referring to Figures 5-7 , the metal reflection layer 200 and the anode layer 700 are provided on the same layer. By setting the metal reflection layer 200 and the anode layer 700 on the same layer, when manufacturing the organic light-emitting display panel 10, the metal reflection layer 200 and the anode layer 700 can be manufactured simultaneously, thereby reducing the manufacturing difficulty of the organic light-emitting display panel 10.

[0053] In this embodiment, the first pixel definition layer 300 is doped with fluorine particles.

[0054] In this embodiment, the second pixel definition layer 600 is doped with fluorine particles. By doping fluorine particles in the second pixel definition layer 600, the hydrophobicity between the second pixel definition layer 600 and the ink can be improved, the affinity between the second pixel definition layer 600 and the ink can be reduced, and the difficulty for the ink located in the second grooving portion 620 to climb upward along the side surface can be increased, thereby improving the uniformity of the film thickness of the organic light-emitting layer 800.

[0055] In this embodiment, referring to Figure 7 , the metal reflection layer 200 is formed over the entire surface of the substrate 100. By forming the metal reflection layer 200 over the entire surface of the substrate 100, the manufacturing difficulty of the organic light-emitting display panel 10 can be reduced.

[0056] In this embodiment, the anode layer 700 includes a plurality of anodes, and the plurality of anodes are spaced apart. In this embodiment, the portion of the organic light-emitting display panel 10 located in the display area AA includes a plurality of pixels spaced apart, wherein the width of the redundant pixel area BB1 is an integer multiple of the pitch between two adjacent pixels in the display area AA. By setting the width of the redundant pixel area BB1 as an integer multiple of the pitch between two adjacent pixels in the display area AA, it is beneficial to improve the consistency of the widths of the four sides of the non-display area of the organic light-emitting display panel 10 and reduce the risk of inconsistency in the widths of the four sides of the non-display area of the organic light-emitting display panel 10.

[0057] In this embodiment, the width f of the opening of the third slotted portion 340 is less than the width b of the opening of the second slotted portion 620, and the ratio of the width f of the opening of the third slotted portion 340 to the width a of the opening of the first slotted portion 320 is not less than 0.5. By setting the width f of the opening of the third slotted portion 340 to be less than the width b of the opening of the second slotted portion 620 and the ratio of the width f of the opening of the third slotted portion 340 to the width a of the opening of the first slotted portion 320 to be not less than 0.5, on the one hand, it is avoided that the width f of the third slotted portion 340 is too small to play a buffering role, resulting in ink overflowing into the display area AA. On the other hand, it is avoided that the width f of the third slotted portion 340 is too large, increasing the width of the non-display area of the organic light-emitting display panel 10.

[0058] In this embodiment, referring to Figure 6 , the metal reflective layer 200 includes a plurality of first metal reflective portions 210 and a second metal reflective portion 220. The plurality of first metal reflective portions 210 are connected, and the second metal reflective portion 220 is located between the first metal reflective portion 210 and the anode layer 700, and the second metal reflective portion 220 is spaced from the first metal reflective portion 210 and the anode layer 700. Among them, in the top view of the organic light-emitting display panel 10, the first metal reflective portion 210 overlaps with the first slotted portion 320, and the second metal reflective portion 220 overlaps with the third slotted portion 340.

[0059] In this embodiment, the width a of the opening of the first slotted portion 320 is greater than the width b of the opening of the second slotted portion 620. By setting the width a of the opening of the first slotted portion 320 to be greater than the width b of the opening of the second slotted portion 620, more ink can be accommodated in the first slotted portion 320, thereby further reducing the solvent evaporation rate in the edge region of the display area AA and the solvent evaporation rate in the middle region of the display area AA, and further improving the thickness uniformity of the organic light-emitting layer 800 in the middle region and the edge region of the display area AA.

[0060] In this embodiment, the organic light-emitting layer 800 includes a hole transport layer, a light-emitting layer, and an electron transport layer; the number of the first barrier walls 310 is at least 3. Among them, the material of the bullet impact correction portion 510 on at least one first barrier wall 310 is the same as that of the hole transport layer, the material of the bullet impact correction portion 510 on at least one first barrier wall 310 is the same as that of the light-emitting layer, and the material of the bullet impact correction portion 510 on at least one first barrier wall 310 is the same as that of the electron transport layer. Since the light-emitting layer, the electron transport layer, and the hole transport layer of the organic light-emitting layer 800 are fabricated by inkjet printing, and the materials for fabricating the light-emitting layer, the electron transport layer, and the hole transport layer are also different, by setting the number of the first barrier walls 310 to be at least 3, among which, the material of the bullet impact correction portion 510 on at least one first barrier wall 310 is the same as that of the hole transport layer, the material of the bullet impact correction portion 510 on at least one first barrier wall 310 is the same as that of the light-emitting layer, and the material of the bullet impact correction portion 510 on at least one first barrier wall 310 is the same as that of the electron transport layer, during bullet impact correction, the bullet impact correction of the ink droplets for printing the electron transport layer, the light-emitting layer, and the hole transport layer can be respectively performed on the first barrier walls 310 at different positions, avoiding the interference of the remaining ink droplets for printing the electron transport layer on the bullet impact positions of the ink droplets for printing the light-emitting layer and the hole transport layer, or the interference of the remaining ink droplets for printing the electron transport layer and the light-emitting layer on the bullet impact positions of the ink droplets for printing the hole transport layer. Preferably, the number of the first barrier walls 310 is 3, 4, 5, or 6. In this embodiment, the hole transport layer is disposed on the side of the anode layer away from the substrate, the light-emitting layer is disposed on the side of the hole transport layer away from the substrate, and the electron transport layer is disposed on the side of the light-emitting layer away from the substrate.

[0061] In this embodiment, the organic light-emitting layer 800 further includes a hole injection layer, an electron injection layer, and a cathode. The hole injection layer is disposed between the anode layer and the substrate 100, the electron injection layer is disposed on the side of the electron transport layer away from the substrate 100, and the cathode is disposed on the side of the electron input layer away from the substrate 100.

[0062] In a second aspect, an embodiment of the present application provides a method for manufacturing an organic light-emitting display panel 10, referring to Figures 4-9, the organic light-emitting display panel 10 includes a display area AA and a redundant pixel area BB1 disposed around the display area AA. The part of the organic light-emitting display panel 10 located in the redundant pixel area BB1 includes a metal reflection layer 200 provided on a substrate 100 of the organic light-emitting display panel 10, and a first pixel definition layer 300 provided on a side of the metal reflection layer 200 away from the substrate 100. The first pixel definition layer 300 includes a plurality of first barriers 310, and a first slotted portion 320 is provided between two adjacent first barriers 310. An organic functional layer 400 is provided on a side of the metal reflection layer 200 away from the substrate 100. A part of the organic functional layer 400 is located in the first slotted portion 320, and a landing correction layer 500 is provided on a side of the first pixel definition layer 300 away from the substrate 100. The landing correction layer 500 includes a plurality of landing correction portions 510. Among them, in a top view of the organic light-emitting display panel 10, the landing correction portion 510 overlaps with a part of the first barrier 310; the manufacturing method of the organic light-emitting display panel 10 includes the following steps:

[0063] Print an organic ink droplet on a surface of the first barrier 310 away from the substrate 100 to form the landing correction layer 500;

[0064] Measure the deviation value between the center e of the organic ink droplet and the horizontal center line N of the first barrier 310, where the length direction of the horizontal center line N of the first barrier 310 is the same as the length direction of the first barrier 310;

[0065] Adjust the inkjet time of the organic ink droplet during the printing process according to the deviation value.

[0066] A method for manufacturing an organic light-emitting display panel 10 provided in this application forms the landing correction layer 500 by printing organic ink droplets on a surface of the first barrier 310 away from the substrate 100; measures a deviation value between the center e of the organic ink droplet and the horizontal center line N of the first barrier 310, where the length direction of the horizontal center line N of the first barrier 310 is the same as the length direction of the first barrier 310; adjusts the inkjet time of the organic ink droplet during the printing process according to the deviation value; so that before printing the organic light-emitting layer 800 of the organic light-emitting display panel 10, the landing position of the ink droplets of the inkjet printing device can be corrected according to the positions of multiple landing correction portions 510 on the first barrier 310, thereby avoiding the problem of color bleeding in the display of the organic light-emitting display panel 10 caused by the printing deviation of the organic light-emitting layer 800. At the same time, since the landing correction of the ink droplets of the inkjet printing device can be directly performed in the redundant pixel area BB1 of the organic light-emitting display panel 10, there is no need to additionally provide a substrate 100 for the landing correction of the ink droplets of the inkjet printing device, thereby also saving the manufacturing cost of the organic light-emitting display panel 10.

[0067] The above has described in detail the specific embodiments of this application. The above-described embodiments disclosed in this application are only the preferred embodiments of this application. For those of ordinary skill in the art, many variations and improvements can be made without departing from the concept of this application. These variations and improvements all fall within the protection scope defined by the claims of this application.

Claims

1. An organic light emitting display panel, characterized in that: The device comprises a display area and a redundant pixel area arranged around the display area, wherein the portion of the organic light emitting display panel located in the redundant pixel area comprises: A metal reflective layer, wherein the metal reflective layer is disposed on a substrate of the organic light emitting display panel; a first pixel definition layer, the first pixel definition layer being disposed on a side of the metal reflective layer away from the substrate, the first pixel definition layer comprising a plurality of first retaining walls, and a first slot portion being disposed between two adjacent first retaining walls; an organic functional layer, the organic functional layer being disposed on a side of the metal reflective layer away from the substrate, and the organic functional layer being located in the first groove; A hit correction layer, the hit correction layer is disposed on a surface of the first pixel definition layer away from the substrate, and the hit correction layer includes a plurality of hit correction parts; Wherein, in the top view of the organic light emitting display panel, the impact correction portion overlaps with a portion of the first retaining wall.

2. The organic light emitting display panel according to claim 1, characterized in that: The portion of the organic light emitting display panel located in the display area includes: A second pixel definition layer, wherein the second pixel definition layer is disposed on the substrate, the second pixel definition layer comprises a plurality of second retaining walls, and a second groove portion is disposed between two adjacent second retaining walls; an anode layer, wherein the anode layer is disposed in the second groove portion; An organic light-emitting layer, the organic light-emitting layer being disposed on a surface of the anode layer away from the substrate; Wherein, in the top view of the organic light emitting display panel, the impact correction layer and the second retaining wall do not overlap.

3. The organic light emitting display panel according to claim 2, characterized in that: The first pixel definition layer also includes a third retaining wall, which is located between the second retaining wall and the first retaining wall, and a third groove portion is provided between the third retaining wall and the second retaining wall; in the top view of the organic light-emitting display panel, the third groove portion does not overlap with the organic functional layer.

4. The organic light emitting display panel according to claim 2, characterized in that: The width of the first blocking wall away from the display area is greater than the width of the second blocking wall away from the redundant pixel area.

5. The organic light emitting display panel according to claim 2, wherein: The organic light-emitting layer includes a hole transport layer, a light-emitting layer, and an electron transport layer; The number of the first retaining walls is at least 3, wherein the material of the impact correction part on at least one of the first retaining walls is the same as the material of the hole transport layer, the material of the impact correction part on at least one of the first retaining walls is the same as the material of the light-emitting layer, and the material of the impact correction part on at least one of the first retaining walls is the same as the material of the electron transport layer.

6. The organic light emitting display panel according to claim 2, characterized in that: The metal reflective layer is arranged on the same layer as the anode layer.

7. The organic light emitting display panel according to claim 3, characterized in that: The width of the opening of the third slot portion is smaller than the width of the opening of the second slot portion, and the ratio of the width of the opening of the third slot portion to the width of the opening of the first slot portion is not less than 0.

5.

8. The organic light emitting display panel according to claim 3, wherein: The metal reflective layer includes a plurality of first metal reflective portions and a second metal reflective portion, the plurality of first metal reflective portions are connected, the second metal reflective portion is located between the first metal reflective portion and the anode layer, and the second metal reflective portion is spaced apart from the first metal reflective portion and the anode layer; wherein, in a top view of the organic light-emitting display panel, the first metal reflective portion overlaps with the first groove portion, and the second metal reflective portion overlaps with the third groove portion.

9. The organic light emitting display panel according to claim 3, characterized in that: The metal reflective layer is formed entirely on the substrate; wherein, in a top view of the organic light emitting display panel, a portion of the metal reflective layer overlaps with the first groove portion and the third groove portion.

10. The organic light emitting display panel according to claim 2, wherein: The width of the opening of the first slot portion is greater than the width of the opening of the second slot portion.

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