CN118301992A - Display panel and display device - Google Patents

Abstract

The invention relates to the technical field of displays, in particular to a display panel and a display device. A combination of sub-pixels having at least two different colors is formed on the first pixel column and the second pixel column, so that the third side and the fourth side of the pixel unit can mix colors of the third sub-pixel and the first sub-pixel at least through the second sub-pixel of the second pixel column when displaying, so as to reduce the risk of the third side and the fourth side single color edge phenomenon of the pixel unit. Meanwhile, since the first pixel column, the second pixel column and the third pixel column are sequentially arranged in a direction in which the third side points to the fourth side, a combination of sub-pixels having three colors is already provided on the first side and the second side, which also reduces the risk of occurrence of a single color edge on the first side and the second side.

Description

Display panel and display device

Technical Field

The invention relates to the technical field of displays, in particular to a display panel and a display device.

Background

An OLED (Organic Light-Emitting Diode) is called an Organic electroluminescent Diode. The OLED display technology has the advantages of full solid state, active light emission, high contrast ratio, ultra-thin, low power consumption, high effect speed, wide working range, easy realization of flexible display, 3D display and the like, so that the OLED display technology is applied to a plurality of display screens at present, such as televisions and mobile display equipment. The pixel unit of the OLED display panel includes a plurality of sub-pixels arranged at intervals, and when the OLED display panel displays, the edge of the pixel unit tends to display the color of the sub-pixel located at the edge, so that the edge of the pixel unit has a single color edge phenomenon, and therefore, how to reduce the single color edge phenomenon of the pixel unit is an important issue.

Disclosure of Invention

The application aims to provide a display panel and a display device, which can reduce the risk of color border phenomenon at the edge of a pixel unit.

The present application provides a display panel, comprising: a pixel defining layer having a plurality of pixel openings; the pixel units are arranged in a first direction and a second direction, the first direction is the length direction of the pixel units, the second direction is the width direction of the pixel units, and the first direction is perpendicular to the second direction; each of the pixel units includes: a plurality of isolation structures protruding from the pixel defining layer and at least partially surrounding the pixel openings; a plurality of pixel columns, wherein the pixel columns at least comprise a first pixel column, a second pixel column and a third pixel column, one of the first pixel column, the second pixel column and the third pixel column at least comprises a sub-pixel, the sub-pixel is arranged in the pixel opening, and the sub-pixel at least comprises a first sub-pixel, a second sub-pixel and a third sub-pixel; wherein adjacent pixel columns share the same isolation structure and/or pixel definition layer; in the first direction, the first pixel column and the third pixel column at least comprise a first sub-pixel and a third sub-pixel, and the length of at least the first sub-pixel along the first direction is larger than the length of the second sub-pixel; in the second direction, the second pixel column is located between the first pixel column and the third pixel column, and for two adjacent pixel units, the first pixel column of one pixel unit is adjacent to the first pixel column of the other pixel unit, or the first pixel column of one pixel unit is adjacent to the third pixel column of the other pixel unit; in the second direction, at least the first sub-pixels in the adjacent pixel columns are abutted, and the pixel definition layer is arranged at the abutting position of the first sub-pixels without an isolation structure, so that the cathode and the light-emitting layer with integrated structures are arranged between the adjacent first sub-pixels.

In one exemplary embodiment of the present application, the second pixel column has a second sub-pixel protruding toward at least one of the first pixel column and the third pixel column, at least one of the first pixel column and the third pixel column having the first sub-pixel, the second sub-pixel, and the third sub-pixel; in at least one of the first pixel column and the third pixel column, a length of the first subpixel is at least greater than one of the second subpixel and the third subpixel in the first direction.

In one exemplary embodiment of the present application, the pixel unit has a first side, a second side, a third side, and a fourth side, the first side and the second side being disposed opposite to each other in the first direction, the third side and the fourth side being disposed opposite to each other in the second direction; the plurality of pixel units are arranged in an array in the first direction and the second direction, the second sides of the adjacent pixel units are overlapped with the first sides in the first direction, and the third sides of the adjacent pixel units are overlapped with the fourth sides in the second direction, so that the first pixel columns and the third pixel columns of the adjacent pixel units are arranged adjacently.

In an exemplary embodiment of the present application, in the first direction, the first pixel column includes a first subpixel and a third subpixel sequentially arranged from the first side to the second side, and the third pixel column includes the third subpixel and the first subpixel sequentially arranged from the first side to the second side; the first sub-pixel comprises an extension part and a protruding part, the extension part extends in the first direction, and the protruding part is arranged in a protruding mode relative to the extension part in the second direction; in the second direction, the protruding parts of the two first sub-pixels which are abutted against each other are opposite to each other.

In an exemplary embodiment of the present application, in a third direction, a plurality of the pixel units are arranged, and for two adjacent pixel units in the third direction, one third sub-pixel of one pixel unit is abutted against one third sub-pixel in a first pixel column of another pixel unit; the third direction is located on the same plane as the first direction and the second direction, and the third direction has an included angle with the first direction and the second direction respectively.

In an exemplary embodiment of the present application, the third sub-pixel includes a second main body portion and a second inclined portion, the second inclined portion being convexly disposed in a third direction with respect to the second main body portion; in the third direction, the second oblique parts of the adjacent third sub-pixels are opposite to each other and are abutted against each other, the pixel definition layer is arranged at the abutting part of the second oblique parts without the isolation structure, the cathodes of the two abutted third sub-pixels are of an integrated structure, and the light emitting layers of the two abutted third sub-pixels are of an integrated structure.

In an exemplary embodiment of the present application, the second subpixel protrudes toward the first pixel column having the first subpixel, the second subpixel, and the third subpixel therein; having the first subpixel and the third subpixel in the third pixel column; in a third direction, a plurality of pixel units are arranged, and for two adjacent pixel units in the third direction, a third sub-pixel of one pixel unit is abutted with a third sub-pixel in a first pixel column of the other pixel unit; the third direction is positioned on the same plane as the first direction and the second direction, and the third direction respectively forms an included angle with the first direction and the second direction; in the third pixel column, the first sub-pixel includes a first main body portion and a first oblique portion, the first oblique portion being provided to protrude in a third direction with respect to the first main body portion; and/or the third sub-pixel comprises a second main body part and a second inclined part, and the second inclined part is arranged in a protruding way relative to the second main body part in a third direction; in the third direction, the first oblique parts of the adjacent first sub-pixels are opposite to each other and are abutted against each other, the pixel definition layer is arranged at the abutting part of the first oblique parts without the isolation structure, the cathodes of the two abutted first sub-pixels are of an integrated structure, and the light emitting layers of the two abutted first sub-pixels are of an integrated structure; and/or the second oblique parts of the adjacent third sub-pixels are arranged opposite to and abutted against each other, the pixel definition layer is arranged at the abutting part of the second oblique parts without the isolation structure, the cathodes of the two abutted third sub-pixels are of an integrated structure, and the light emitting layers of the two abutted third sub-pixels are of an integrated structure.

In an exemplary embodiment of the present application, in the first direction, two second sub-pixels in adjacent pixel units are disposed in abutment, the pixel defining layer is disposed between the two abutted second sub-pixels without disposing the isolation structure, the cathodes of the two abutted second sub-pixels are in an integral structure, and the light emitting layers of the two abutted second sub-pixels are in an integral structure.

In an exemplary embodiment of the present application, the isolation structure includes a conductive center layer and an eave layer disposed in a stacked manner, the eave layer having a cross-sectional area greater than that of the conductive center layer, and cathodes of adjacent subpixels are electrically connected through the conductive center layer.

The application also provides a display device comprising the display panel.

The display panel and the display device have the following beneficial effects: the isolation structure of each pixel unit protrudes out of the pixel definition layer and at least partially surrounds the pixel opening; the pixel columns at least comprise a first pixel column, a second pixel column and a third pixel column, one of the first pixel column, the second pixel column and the third pixel column at least comprises a sub-pixel, and the sub-pixel is arranged in the pixel opening. The sub-pixels at least comprise a first sub-pixel, a second sub-pixel and a third sub-pixel; the adjacent pixel columns share the same isolation structure and/or pixel definition layer, and in the first direction, the first pixel column and the third pixel column at least comprise a first sub-pixel and a third sub-pixel, and the length of at least the first sub-pixel along the first direction is greater than the length of the second sub-pixel. Therefore, a combination of at least two sub-pixels with different colors is formed on the first pixel column and the second pixel column, so that the first pixel column and the third pixel column of the pixel unit can be mixed at least through different colors during display, and the risk of single-color edge phenomenon of the first pixel column and the third pixel column in the pixel unit can be reduced. Meanwhile, as the first pixel columns, the second pixel columns and the third pixel columns are arranged in the second direction, the combination of the sub-pixels with three colors also reduces the risk of single color edges. In the second direction, the second pixel column is located between the first pixel column and the third pixel column, and for two adjacent pixel units, the first pixel column of one pixel unit is adjacent to the first pixel column of the other pixel unit, or the first pixel column of one pixel unit is adjacent to the third pixel column of the other pixel unit; in the second direction, at least the first sub-pixels in adjacent pixel columns are abutted, a pixel definition layer is arranged at the abutting position of the first sub-pixels without an isolation structure, so that a cathode and a light-emitting layer with integrated structures are arranged between the adjacent first sub-pixels.

Other features and advantages of the application will be apparent from the following detailed description, or may be learned by the practice of the application.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application as claimed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application. It is evident that the drawings in the following description are only some embodiments of the present application and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.

Fig. 1 is a schematic diagram of a first structure of a pixel unit in a display panel according to an embodiment of the invention;

FIG. 2 is a schematic cross-sectional view of I-I of FIG. 1;

FIG. 3 is a schematic diagram of a second structure of a pixel unit in a display panel according to an embodiment of the invention;

FIG. 4a is a first schematic diagram illustrating an arrangement of pixel units and isolation structures in a display panel according to an embodiment of the present invention;

FIG. 4b is a schematic cross-sectional view of II-II in FIG. 4 a;

FIG. 4c is a second schematic diagram of an arrangement of pixel units and isolation structures in a display panel according to an embodiment of the invention;

FIG. 4d is a third schematic diagram illustrating an arrangement of pixel units and isolation structures in a display panel according to an embodiment of the invention;

FIG. 4e is a fourth schematic diagram illustrating an arrangement of pixel units and isolation structures in a display panel according to an embodiment of the present invention;

FIG. 5a is a fifth schematic diagram illustrating an arrangement of pixel units and isolation structures in a display panel according to an embodiment of the invention;

FIG. 5b is a sixth schematic diagram illustrating an arrangement of pixel units and isolation structures in a display panel according to an embodiment of the invention;

FIG. 5c is a seventh schematic view of an arrangement of pixel units and isolation structures in a display panel according to an embodiment of the invention;

FIG. 6a is a schematic view of an eighth embodiment of an arrangement of pixel units and isolation structures in a display panel;

FIG. 6b is a ninth schematic view of an arrangement of pixel units and isolation structures in a display panel according to an embodiment of the invention;

Fig. 6c is a tenth schematic view showing an arrangement of a pixel unit and an isolation structure in a display panel according to an embodiment of the present invention.

Reference numerals illustrate:

10. A substrate; 20. a pixel definition layer; 30. a pixel unit; 31. a pixel column; 311. a first pixel column; 312. a second pixel column; 313. a third pixel column; 31A, a first side; 31B, second side; 31C, third side; 31D, fourth side; 32. a sub-pixel; 321. an anode; 322. a light emitting layer; 323. a cathode; 32A, a first subpixel; 32A1, an extension; 32A2, a projection; 32a11, a first body portion; 32a12, a first oblique portion; 32B, a second subpixel; 32C, a third subpixel; 32C1, a second body portion; 32C2, a second oblique portion; 40. an isolation structure; 41. a conductive center layer; 42. eave layer; s1, a first direction; s2, a second direction; s3, in the third direction.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art.

Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the application. One skilled in the relevant art will recognize, however, that the application may be practiced without one or more of the specific details, or with other methods, components, devices, steps, etc. In other instances, well-known methods, devices, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the application.

The application will be described in further detail with reference to the drawings and the specific examples. It should be noted that the technical features of the embodiments of the present application described below may be combined with each other as long as they do not collide with each other. The embodiments described below by referring to the drawings are illustrative and intended to explain the present application and should not be construed as limiting the application.

It should be noted that: references herein to "a plurality" means two or more. "and/or" describes an association relationship of an association object, meaning that there may be three relationships, e.g., a and/or B may represent: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

An OLED (Organic Light-Emitting Diode) is called an Organic electroluminescent Diode. The OLED display technology has the advantages of full solid state, active light emission, high contrast ratio, ultra-thin, low power consumption, high effect speed, wide working range, easy realization of flexible display, 3D display and the like, so that the OLED display technology is applied to a plurality of display screens at present, such as televisions and mobile display equipment. The pixel unit of the OLED display panel includes a plurality of sub-pixels arranged at intervals, and when the OLED display panel displays, the edge of the pixel unit tends to display the color of the sub-pixel located at the edge, so that the edge of the pixel unit has a single color edge phenomenon, and therefore, how to reduce the single color edge phenomenon of the pixel unit is an important issue.

In order to solve the above-mentioned problems, referring to fig. 1 to 3, the present application provides a display panel, which includes a pixel defining layer 20 and a plurality of pixel units 30, wherein the pixel defining layer 20 has a plurality of pixel openings, each pixel unit 30 includes a plurality of isolation structures 40 and a plurality of pixel columns 31, and the plurality of isolation structures 40 are protruded from the pixel defining layer 20 and at least partially surround the pixel openings; the pixel column 31 includes at least a first pixel column 311, a second pixel column 312 and a third pixel column 313, and one of the first pixel column 311, the second pixel column 312 and the third pixel column 313 includes at least one sub-pixel 32, and the sub-pixel 32 is disposed in the pixel opening; wherein adjacent pixel columns 31 share the same isolation structure 40 and/or pixel definition layer 20; in the first direction S1, the first pixel column 311 and the third pixel column 313 include at least a first sub-pixel 32A and a third sub-pixel 32C, and at least a length of the first sub-pixel 32A in the first direction S1 is greater than a length of the second sub-pixel 32B; in the second direction S2, the second pixel column 312 is located between the first pixel column 311 and the third pixel column 313, and for two adjacent pixel units 30, the first pixel column 311 of one pixel unit 30 is adjacent to the first pixel column 311 of the other pixel unit 30, or the first pixel column 311 of one pixel unit 30 is adjacent to the third pixel column 313 of the other pixel unit 30; in the second direction S2, at least the first sub-pixels 32A in adjacent pixel columns 31 are abutted, and the pixel defining layer 20 is disposed at the abutted position of the first sub-pixels 32A without providing the isolation structure 40, so that the cathode 323 and the light emitting layer 322 having integral structures are disposed between the adjacent first sub-pixels 32A.

By the above design, a combination of the sub-pixels 32 having at least two different colors is formed on the first pixel column 311 and the second pixel column 312, so that the first pixel column 311 and the third pixel column 313 of the pixel unit 30 can be mixed by at least different colors when displayed, so that the risk of the single color edge phenomenon of the first pixel column 311 and the third pixel column 313 in the pixel unit 30 can be reduced. Meanwhile, since the first pixel column 311, the second pixel column 312, and the third pixel column 313 are arranged in the second direction S2, the combination of the sub-pixels 32 having three colors also reduces the risk of a single color edge. Next, referring to fig. 4a to 6c, at least the first sub-pixels 32A in the adjacent pixel columns 31 are abutted, and the pixel defining layer 20 is disposed at the abutting position of the first sub-pixels 32A without disposing the isolation structure 40, so that the cathode 323 and the light emitting layer 322 (refer to fig. 4b in detail) having an integral structure between the adjacent first sub-pixels 32A are connected as an integral structure, that is, the cathodes 323 of the adjacent two first sub-pixels 32A are connected as an integral structure, and since the isolation structure 40 between the abutted sub-pixels 32 does not emit light, the pixel defining layer 20 with smaller width can separate the anodes 321 of the same sub-pixels 32 by using the process, and by eliminating the isolation structure 40 therebetween, the aperture ratio of the pixel aperture can be improved. Note that, thick solid lines between adjacent sub-pixels 32 in a top view are used to schematically set the isolation structures 40 and the pixel definition layers 20, and thin solid lines between adjacent sub-pixels 32 are used to schematically set the pixel definition layers 20 without setting the isolation structures 40.

In some embodiments, in the second direction S2, if the arrangement order of the pixel columns 31 in the adjacent pixel units 30 is the same, the first pixel column 311 of one pixel unit 30 is disposed adjacent to the third pixel column 313 of the other pixel unit 30; if the arrangement order of the pixel columns 31 in the adjacent pixel units 30 is reversed, the first pixel column 311 of one pixel unit 30 is disposed adjacent to the first pixel column 311 of the other pixel unit 30.

In some embodiments, the first subpixel 32A is defined as a blue subpixel, the second subpixel 32B is defined as a green subpixel, and the third subpixel 32C is defined as a red subpixel. Because the display panel adopts organic materials, the problem of display life exists, and the panel can appear the decay of luminance along with the increase of live time. Meanwhile, due to technical limitations, the three colors red, green and blue are not the same in service life, wherein the red service life is longest, the green color is next smallest, and the blue color is shortest. Setting the length of the first subpixel 32A to be greater than the red subpixel 32 can also balance the decay time of the first subpixel 32A and the third subpixel 32C.

In some embodiments, in the second direction S2, if the arrangement order of the pixel columns 31 in the adjacent pixel units 30 is the same, the first pixel column 311 of one pixel unit 30 is disposed adjacent to the third pixel column 313 of the other pixel unit 30; if the arrangement order of the pixel columns 31 in the adjacent pixel units 30 is reversed, the first pixel column 311 of one pixel unit 30 is disposed adjacent to the first pixel column 311 of the other pixel unit 30.

In some embodiments, referring to fig. 1, the first direction S1 is a length direction of the pixel unit 30; the second direction S2 is the width direction of the pixel unit 30; the third direction S3 is located on the same plane as the first direction S1 and the second direction S2, and the third direction S3 is different from the first direction S1 and the second direction S2, so that the third direction S3 has an included angle with the first direction S1 or the third direction S3 and the second direction S2. Specifically, the included angle between the third direction S3 and the first direction S1, or between the third direction S3 and the second direction S2 is 45 °.

In some embodiments, referring to fig. 2, the display panel further includes a substrate 10, and the substrate 10 may be a glass substrate or an organic substrate. The organic substrate includes a substrate 10, a planarization layer and a driving circuit, wherein the planarization layer may be made of polyimide (abbreviated as PI in english) or polyamide ester (abbreviated as PEN in english). The driving circuit may be a thin film transistor (english name Thin Film Transistor, abbreviated as TFT) circuit layer for driving the light emitting layer 322 of the OLED. The specific TFT circuit layer includes a plurality of driving circuit units arranged in an array, and each driving circuit unit may include a TFT device and a capacitor. Each driving circuit unit corresponds to one anode 321 and one organic light emitting layer 322. The TFT device is of a low temperature polysilicon (Low Temperature Poly-silicon, LTPS) type, or a Metal oxide semiconductor (Metal-Oxide Semiconductor, MOS) type, for example, a Metal oxide semiconductor type of Indium Gallium Zinc Oxide (IGZO).

In some embodiments, the material of the pixel defining layer 20 may be one of an organic material or an inorganic material having an inorganic coating disposed thereon. The organic material of the pixel defining layer 20 includes, but is not limited to, polyimide. The inorganic material of the pixel defining layer 20 includes, but is not limited to, silicon oxide (SiO), silicon nitride (Si 3N 4), silicon oxynitride (Si 3N 4O), magnesium fluoride (MgF 2), or a combination thereof.

In some embodiments, the subpixels 32 are configured to emit different colors of light, and a plurality of subpixels 32 emit light to display an image. Each pixel is superimposed and mixed by a red sub-pixel, a green sub-pixel, and a blue sub-pixel to realize display of a white picture, and different color pictures are displayed by controlling the light emission degrees of the different color sub-pixels 32.

In some embodiments, referring to fig. 2, the sub-pixel 32 includes an anode 321, an organic light emitting layer 322, and a cathode 323. The anode 321 is disposed on the flexible substrate within the pixel accommodating region; the organic light emitting layer 322 is disposed on the anode 321; the cathode 323 is disposed over the organic light emitting layer 322.

Further, referring to fig. 2, anodes 321 are provided at intervals on one surface of the substrate 10. The material of anode 321 includes, but is not limited to, chromium, titanium, gold, silver, copper, aluminum, ITO, combinations thereof, or other suitable conductive materials. The organic light emitting layer 322 is for emitting red, blue, or green light when energized, and the organic light emitting layer 322 may include one or more of HIL (Hole Injection Layer ), HTL (Hole TRANSFER LAYER, hole transport layer), EML (EMITTING LAYER, emission layer), and ETL (Electron TRANSFER LAYER ). A cathode 323 is disposed on a side of the organic light emitting layer 322 remote from the anode 321, and materials of the cathode 323 include, but are not limited to, chromium, titanium, gold, silver, copper, aluminum, ITO, combinations thereof, or other suitable conductive materials. The material of the cathode 323 may be the same as or different from that of the anode 321, and specifically, the material may be set according to actual conditions.

In some embodiments, referring to fig. 2, isolation structure 40 includes conductive center layer 41 and eave layer 42 in a stacked arrangement, eave layer 42 having a cross-sectional area greater than that of conductive center layer 41, and cathodes 323 of adjacent subpixels 32 are electrically connected through conductive center layer 41. The formed isolation structure 40 is in a mushroom top structure, and the eave layer 42 arranged above can play a role of shielding when evaporating the sub-pixels 32, can provide different evaporation angles for forming the light-emitting layer 322 and the cathode 323, and can reduce mask times through the eave layer 42, so that the manufacturing cost of the display panel is reduced.

In some embodiments, referring to fig. 3, the second pixel column 312 has a second sub-pixel 32B, the second sub-pixel 32B protruding toward at least one of the first pixel column 311 and the third pixel column 313, at least one of the first pixel column 311 and the third pixel column 313 having a first sub-pixel 32A, a second sub-pixel 32B, and a third sub-pixel 32C; in at least one of the first pixel column 311 and the third pixel column 313, the length of the first subpixel 32A is at least greater than one of the length of the second subpixel 32B and the third subpixel 32C in the first direction S1, and in the at least one of the first pixel column 311 and the third pixel column 313, the length of the first subpixel 32A is greater than the length of the third subpixel 32C is greater than the length of the second subpixel 32B in the first direction S1. Thus, the protruding portion of the second sub-pixel 32B can mix the sub-pixels 32 with three colors in the first pixel column 311 and/or the second pixel column 312, so that the light emitted from the edge of the pixel unit 30 further tends to be white light, and the risk of the single color edge phenomenon of the edge can be further reduced.

In some embodiments, referring to fig. 4a to 4c, 5a to 5c, 6B, and 6c, in the first direction S1, two second sub-pixels 32B are disposed in an adjacent pixel unit 30 in an abutting manner, a pixel defining layer 20 is disposed between the two abutting second sub-pixels 32B without providing an isolation structure, cathodes (not shown in the drawings) of the two abutting second sub-pixels 32B are integrally formed, and light emitting layers (not shown in the drawings) of the two abutting second sub-pixels 32B are integrally formed.

In some embodiments, referring to fig. 4a to 4e, the pixel unit 30 has a first side 31A, a second side 31B, a third side 31C and a fourth side 31D, the first side 31A and the second side 31B are disposed opposite to each other in the first direction S1, the third side 31C and the fourth side 31D are disposed opposite to each other in the second direction S2, and after defining the sides of the pixel unit 30, the different arrangement of the pixel unit 30 is defined hereinafter by referring to the first side 31A, the second side 31B, the third side 31C and the fourth side 31D.

In some embodiments, the plurality of pixel units 30 are arranged in an array in the first direction S1 and the second direction S2, in the first direction S1, the second side 31B of the adjacent pixel units 30 coincides with the first side 31A, in the second direction S2, the third side 31C of the adjacent pixel units 30 coincides with the fourth side 31D, that is, the plurality of sub-pixels 32 of each pixel unit 30 are arranged in a preset order in both the first direction S1 and the second direction S2, and the arrangement order of the sub-pixels 32 of the adjacent pixel units 30 may be the same. So that the first pixel column 311, the second pixel column 312, and the third pixel column 313 of each pixel unit 30 are adjacently disposed. And by determining whether the first side 31A and the second side 31B of the adjacently disposed pixel units 30 are the same color sub-pixels 32, it is further selected whether the isolation structure 40 needs to be disposed. The pixel opening can be further increased if the isolation structure 40 is not required.

In some embodiments, referring to fig. 4B, in the first direction S1, the first pixel column 311 includes first and third sub-pixels 32A and 32C sequentially arranged from the first side 31A to the second side 31B, and the third pixel column 313 includes third and first sub-pixels 32C and 32A sequentially arranged from the first side 31A to the second side 31B. The first sub-pixel 32A includes an extension portion 32A1 and a protrusion portion 32A2, the extension portion 32A1 extending in the first direction S1, the protrusion portion 32A2 being provided in a protruding manner with respect to the extension portion 32A1 in the second direction S2; in the second direction S2, the protruding portions 32A2 of the two first sub-pixels 32A that are in contact are disposed opposite to each other. In some embodiments, the extension portion 32A1 and the protrusion portion 32A2 may each be rectangular in arrangement, and the length of the protrusion portion 32A2 may be one-half of the length of the extension portion 32A1 in the first direction S1. Since the region occupied by the isolation structure cannot emit light, by canceling the isolation structure between the first sub-pixels 32A abutted against each other in the second direction S2, that is, only the pixel definition layer 20 is provided between the first sub-pixels 32A abutted against each other without providing the isolation structure, the anode 321 of the same sub-pixel 32 is separated by the pixel definition layer 20 which can be made to have a smaller width in terms of process, the extension portion 32A1 is provided in the first direction S1 to be a main light emitting region, the oppositely provided protruding portion 32A2 can extend to the pixel definition layer 20 between the two first sub-pixels 32A abutted against each other, and the light emitting area of the two first sub-pixels 32A abutted against each other can be increased after the two protruding portions 32A2 are abutted against each other, so that the aperture ratio of the pixel aperture can be improved.

In some embodiments, referring to fig. 4a to 4e, a plurality of pixel units 30 are arranged in the third direction S3. Referring to fig. 4 d-4 e, for two adjacent pixel units 30 in the third direction S3, a third sub-pixel 32C of one pixel unit 30 is abutted with a third sub-pixel 32C in the first pixel row 311 of the other pixel unit 30; the third direction S3 is located on the same plane as the first direction S1 and the second direction S2, and the third direction S3 has an included angle with the first direction S1 and the second direction S2 respectively. Referring to fig. 4b, the isolation structure 40 between the third sub-pixels 32C is eliminated according to the actual situation, so as to increase the pixel aperture ratio of the third sub-pixels 32C. That is, to increase the light emitting area, the pixel defining layer 20 may be disposed between the two third sub-pixels 32C abutted in the third direction S3 without disposing the isolation structure 40. In other embodiments, referring to fig. 4 a-4 b, an isolation structure 40 and a pixel defining layer 20 may also be disposed between two third sub-pixels 32C disposed adjacent to each other in the third direction S3.

In some embodiments, referring to fig. 4d, the third sub-pixel 32C includes a second main body portion 32C1 and a second inclined portion 32C2, and the second inclined portion 32C2 is disposed to protrude in the third direction S3 with respect to the second main body portion 32C 1; in the third direction S3, the second oblique portions 32C2 of the adjacent third sub-pixels 32C are disposed opposite to and abut against each other, the pixel defining layer 20 is provided at the abutting portion of the second oblique portions 32C2 without the isolation structure 40, the cathodes 323 of the two abutting third sub-pixels 32C are integrally structured, and the light emitting layers 322 of the two abutting third sub-pixels 32C are integrally structured. The third sub-pixel 32C assumes a more important light emitting role through the second main body portion 32C1, the second oblique portion 32C2 can connect the second main body portions 32C1 of the two third sub-pixels 32C into an integral structure, and for the plurality of pixel units 30 arranged along the third direction S3, one third sub-pixel 32C of one pixel unit 30 can be abutted against one third sub-pixel 32C in the first pixel column 311 of the other pixel unit 30, and the second oblique portion 32C2 can also play a role in light emission. Since the isolation structure 40 between the third sub-pixels 32C is not illuminated, the pixel definition layer 20 with smaller width can be used to separate the anodes 321 of the same sub-pixels 32, and the aperture ratio of the pixel aperture can be further improved by eliminating the isolation structure 40 therebetween.

In some embodiments, referring to fig. 4e, the second sub-pixel 32B protrudes toward the first pixel column 311, and has a first sub-pixel 32A, a second sub-pixel 32B, and a third sub-pixel 32C in the first pixel column 311; the third pixel column 313 has a first subpixel 32A and a third subpixel 32C therein. The first subpixel 32A includes a first main body portion 32A11 and a first oblique portion 32A12, the first oblique portion 32A12 being disposed to protrude in the third direction S3 with respect to the first main body portion 32A 11; and/or the third sub-pixel 32C includes a second main body portion 32C1 and a second inclined portion 32C2, the second inclined portion 32C2 being disposed to protrude in the third direction S3 with respect to the second main body portion 32C 1. In the third pixel column 313, for example, the first sub-pixel 32A is provided to include the first main body portion 32A11 and the first oblique portion 32A12, the first oblique portion 32A12 being provided to protrude in the third direction S3 with respect to the first main body portion 32A 11; or in the third pixel column 313, the third sub-pixel 32C is provided to include the second main body portion 32C1 and the second oblique portion 32C2, the second oblique portion 32C2 being provided to protrude in the third direction S3 with respect to the second main body portion 32C 1; or in the third pixel column 313, the first subpixel 32A is provided to include the first main body portion 32A11 and the first oblique portion 32A12, and the third subpixel 32C is provided to include the second main body portion 32C1 and the second oblique portion 32C2, the first oblique portion 32A12 being provided to protrude in the third direction S3 with respect to the first main body portion 32A11, and the second oblique portion 32C2 being provided to protrude in the third direction S3 with respect to the second main body portion 32C 1. Specifically, the method is selected according to actual conditions.

In some embodiments, in the third direction S3, the first oblique portions 32A12 of the adjacent first sub-pixels 32A are disposed opposite to and abut against each other, the pixel defining layer 20 is disposed at the abutting position of the first oblique portions 32A12 without the isolation structure 40, the cathodes 323 of the two first sub-pixels 32A that are abutted are integrally formed, and the light emitting layers 322 of the two first sub-pixels 32A that are abutted are integrally formed; and/or, the second oblique portions 32C2 of the adjacent third sub-pixels 32C are disposed opposite to and abut against each other, the pixel defining layer 20 is disposed at the abutting portion of the second oblique portions 32C2 without the isolation structure 40, the cathodes 323 of the two abutting third sub-pixels 32C are integrally structured, and the light emitting layers 322 of the two abutting third sub-pixels 32C are integrally structured. In the third pixel column 313, the isolation structure 40 is not light-emitting between the third sub-pixels 32C, and the anodes 321 of the same sub-pixels 32 are separated by the pixel definition layer 20 having a smaller width in terms of the process, so that the aperture ratio of the pixel aperture can be further improved by eliminating the isolation structure 40 therebetween. In the first pixel column 311, since the second sub-pixel 32B protrudes into the first pixel column 311, it has three sub-pixels 32 with different colors, which further reduces the risk of a single color edge of the first pixel column 311. Through the design, the advantages of further reducing the risks of single color edges and further improving the pixel aperture opening ratio can be achieved.

In some embodiments, in fig. 4C to 4e, the first sub-pixel 32A having the extension portion 32A1 and the protrusion portion 32A2, the first sub-pixel 32A having the main body portion and the oblique portion, and/or the third sub-pixel 32C can be combined and laid out to obtain another arrangement. And will not be described in detail herein.

In some embodiments, referring to fig. 5a to 5c and fig. 6a to 6c, the pixel units 30 in fig. 1 and 3 are arranged, and a plurality of pixel units 30 are arranged in an array in the first direction S1 and the second direction S2 to form a display panel. In the first direction S1, the first sides 31A of adjacent pixel units 30 coincide, or the second sides 31B of adjacent pixel units 30 coincide; in the second direction S2, the third sides 31C of adjacent pixel cells 30 overlap, or the fourth sides 31D of adjacent pixel cells 30 overlap. By overlapping the first sides 31A of adjacent pixel cells 30 or overlapping the second sides 31B of adjacent pixel cells 30 in the first direction S1; in the second direction S2, the third side 31C of the adjacent pixel units 30 is overlapped, or the fourth side 31D of the adjacent pixel units 30 is overlapped, so that the adjacent two pixel units 30 are mirror image structures in the first direction S1 and the second direction S2, and can have two identical sub-pixels 32 on the first side 31A, the second side 31B, the third side 31C, or the fourth side 31D, which may be the first sub-pixel 32A, the second sub-pixel 32B, and the third sub-pixel 32C.

In some embodiments, referring to fig. 5a to 5c, the first structure of the pixel unit 30 in fig. 1 is arranged. In the first direction S1 and the second direction S2, for two adjacent pixel units 30, a first sub-pixel 32A of one pixel unit 30 is disposed in contact with a first sub-pixel 32A of the other pixel unit 30, and a third sub-pixel 32C of the one pixel unit 30 is disposed in contact with another third sub-pixel 32C. Referring to fig. 5b, the pixel defining layer 20 is disposed between the two first sub-pixels 32A that are in contact without providing the isolation structure 40, the light emitting layers of the two first sub-pixels 32A that are in contact are in an integral structure, and the cathodes of the two first sub-pixels 32A that are in contact are in an integral structure; and/or, referring to fig. 5C, the pixel defining layer 20 is disposed between the two third sub-pixels 32C that are in contact, without providing the isolation structure 40, the cathodes of the two third sub-pixels 32C that are in contact are in an integrated structure, and the light emitting layers of the two third sub-pixels 32C that are in contact are in an integrated structure. Because the sub-pixels 32 that are abutted are the same sub-pixels 32, and the isolation structure 40 between two sub-pixels 32 that are abutted does not emit light, the pixel definition layer 20 with smaller width can be used to separate the anodes 321 of the same sub-pixels 32, and the isolation structure 40 is eliminated. The aperture ratio of the pixel aperture can be further improved, so that the light emitting layers of the two first sub-pixels 32A and/or the third sub-pixels 32C that are in contact are in an integrated structure, and the cathodes of the two first sub-pixels 32A and/or the third sub-pixels 32C that are in contact are in an integrated structure.

In some embodiments, the second structure of the pixel cell 30 of fig. 3 is arranged as shown with reference to fig. 6a to 6 c. In the second direction S2, two second sub-pixels 32B are disposed in the adjacent pixel units 30 in an abutting manner, the pixel defining layer 20 is disposed between the two abutting second sub-pixels 32B without providing the isolation structure 40, the cathodes of the two abutting second sub-pixels 32B are integrally structured, and the light emitting layers of the two abutting second sub-pixels 32B are integrally structured. Referring to fig. 6d, in the first direction S1 and the second direction S2, for two adjacent pixel units 30, a first sub-pixel 32A of one pixel unit 30 is disposed in contact with a first sub-pixel 32A of another pixel unit 30, and a third sub-pixel 32C of one pixel unit 30 is disposed in contact with another third sub-pixel 32C; the pixel defining layer 20 is arranged between the two abutted first sub-pixels 32A without the isolation structure 40, the luminous layers of the two abutted first sub-pixels 32A are of an integral structure, and the cathodes of the two abutted first sub-pixels 32A are of an integral structure; and/or, referring to fig. 6d, the pixel defining layer 20 is disposed between the two third sub-pixels 32C that are in contact, without providing the isolation structure 40, the cathodes of the two third sub-pixels 32C that are in contact are in an integrated structure, and the light emitting layers of the two third sub-pixels 32C that are in contact are in an integrated structure. Because the adjacent sub-pixels 32 are the same sub-pixels 32, and the isolation structure 40 between two adjacent sub-pixels 32 does not emit light, the pixel definition layer 20 with smaller width can be used to separate the anodes 321 of the same sub-pixels 32, and the isolation structure 40 is omitted. The aperture ratio of the pixel aperture can be further increased, so that the light emitting layers of the two first sub-pixels 32A and/or the third sub-pixels 32C that are in contact are in an integrated structure, and the cathodes of the two first sub-pixels 32A and/or the third sub-pixels 32C that are in contact are in an integrated structure.

In some embodiments, referring to fig. 4a to 4c, 5a to 5c, and 6a to 6c, for the sub-pixels 32 disposed adjacently and having different colors, a pixel defining layer 20 and an isolation structure 40 are disposed therebetween. To isolate the differently colored subpixels 32.

In the present application, a combination of at least two different colors of sub-pixels 32 is formed on the first pixel column 311 and the second pixel column 312, so that the third side 31C and the fourth side 31D of the pixel unit 30 can mix the colors of the third sub-pixel 32C and the first sub-pixel 32A at least through the second sub-pixel 32B of the second pixel column 312 when displaying, so that the risk of the single color edge phenomenon of the third side 31C and the fourth side 31D of the pixel unit 30 can be reduced. Further, the protruding portion of the second sub-pixel 32B can mix the sub-pixels 32 with three colors in the first pixel column 311 and/or the second pixel column 312, so that the light emitted from the edge of the pixel unit 30 tends to be white light, and the risk of the single color edge phenomenon of the edge can be further reduced.

The application also provides a display device comprising the display panel.

In the present application, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and the like are to be construed broadly and may be, for example, fixedly attached, detachably attached, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present specification, reference to the term "some embodiments" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment is included in at least one embodiment of the application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present application have been shown and described, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made in the above embodiments by those skilled in the art within the scope of the application, which is therefore intended to be covered by the appended claims and their equivalents.

Claims (10)

1. A display panel, comprising:

A pixel defining layer having a plurality of pixel openings;

the pixel units are arranged in a first direction and a second direction, the first direction is the length direction of the pixel units, the second direction is the width direction of the pixel units, and the first direction is perpendicular to the second direction;

each of the pixel units includes:

A plurality of isolation structures protruding from the pixel defining layer and at least partially surrounding the pixel openings;

A plurality of pixel columns, wherein the pixel columns at least comprise a first pixel column, a second pixel column and a third pixel column, one of the first pixel column, the second pixel column and the third pixel column at least comprises a sub-pixel, the sub-pixel is arranged in the pixel opening, and the sub-pixel at least comprises a first sub-pixel, a second sub-pixel and a third sub-pixel;

Wherein adjacent pixel columns share the same isolation structure and/or pixel definition layer;

In the first direction, the first pixel column and the third pixel column at least comprise a first sub-pixel and a third sub-pixel, and the length of at least the first sub-pixel along the first direction is larger than the length of the second sub-pixel;

in the second direction, the second pixel column is located between the first pixel column and the third pixel column, and for two adjacent pixel units, the first pixel column of one pixel unit is adjacent to the first pixel column of the other pixel unit, or the first pixel column of one pixel unit is adjacent to the third pixel column of the other pixel unit; in the second direction, at least the first sub-pixels in the adjacent pixel columns are abutted, and the pixel definition layer is arranged at the abutting position of the first sub-pixels without an isolation structure, so that the cathode and the light-emitting layer with integrated structures are arranged between the adjacent first sub-pixels.

2. The display panel according to claim 1, wherein the second pixel column has a second sub-pixel protruding toward at least one of the first pixel column and the third pixel column, and at least one of the first pixel column and the third pixel column has the first sub-pixel, the second sub-pixel, and the third sub-pixel;

in at least one of the first pixel column and the third pixel column, a length of the first subpixel is at least greater than one of the second subpixel and the third subpixel in the first direction.

3. The display panel of claim 1, wherein the pixel cell has a first side, a second side, a third side, and a fourth side, the first side and the second side being disposed opposite in the first direction, the third side and the fourth side being disposed opposite in the second direction;

The plurality of pixel units are arranged in an array in the first direction and the second direction, the second sides of the adjacent pixel units are overlapped with the first sides in the first direction, and the third sides of the adjacent pixel units are overlapped with the fourth sides in the second direction, so that the first pixel columns and the third pixel columns of the adjacent pixel units are arranged adjacently.

4. The display panel according to claim 3, wherein,

In the first direction, the first pixel column includes a first sub-pixel and a third sub-pixel sequentially arranged from the first side to the second side, and the third pixel column includes the third sub-pixel and the first sub-pixel sequentially arranged from the first side to the second side;

The first sub-pixel comprises an extension part and a protruding part, the extension part extends in the first direction, and the protruding part is arranged in a protruding mode relative to the extension part in the second direction; in the second direction, the protruding parts of the two first sub-pixels which are abutted against each other are opposite to each other.

5. The display panel according to claim 3 or 4, wherein in a third direction, a plurality of the pixel units are arranged, and for two adjacent pixel units in the third direction, one of the third sub-pixels of one pixel unit is abutted against one of the third sub-pixels in the first pixel column of the other pixel unit; the third direction is located on the same plane as the first direction and the second direction, and the third direction has an included angle with the first direction and the second direction respectively.

6. The display panel of claim 5, wherein the display panel comprises,

The third sub-pixel comprises a second main body part and a second inclined part, and the second inclined part is arranged in a protruding mode relative to the second main body part in a third direction;

In the third direction, the second oblique parts of the adjacent third sub-pixels are opposite to each other and are abutted against each other, the pixel definition layer is arranged at the abutting part of the second oblique parts without the isolation structure, the cathodes of the two abutted third sub-pixels are of an integrated structure, and the light emitting layers of the two abutted third sub-pixels are of an integrated structure.

7. The display panel of claim 2, wherein the display panel comprises,

The second sub-pixel protrudes toward the first pixel column having the first sub-pixel, the second sub-pixel, and the third sub-pixel therein; having the first subpixel and the third subpixel in the third pixel column;

In a third direction, a plurality of pixel units are arranged, and for two adjacent pixel units in the third direction, a third sub-pixel of one pixel unit is abutted with a third sub-pixel in a first pixel column of the other pixel unit; the third direction is positioned on the same plane as the first direction and the second direction, and the third direction respectively forms an included angle with the first direction and the second direction;

In the third pixel column, the first sub-pixel includes a first main body portion and a first oblique portion, the first oblique portion being provided to protrude in a third direction with respect to the first main body portion; and/or the third sub-pixel comprises a second main body part and a second inclined part, and the second inclined part is arranged in a protruding way relative to the second main body part in a third direction;

In the third direction, the first oblique parts of the adjacent first sub-pixels are opposite to each other and are abutted against each other, the pixel definition layer is arranged at the abutting part of the first oblique parts without the isolation structure, the cathodes of the two abutted first sub-pixels are of an integrated structure, and the light emitting layers of the two abutted first sub-pixels are of an integrated structure; and/or the second oblique parts of the adjacent third sub-pixels are arranged opposite to and abutted against each other, the pixel definition layer is arranged at the abutting part of the second oblique parts without the isolation structure, the cathodes of the two abutted third sub-pixels are of an integrated structure, and the light emitting layers of the two abutted third sub-pixels are of an integrated structure.

8. The display panel according to any one of claims 1 to 6, wherein in the first direction, two second sub-pixels in adjacent pixel units are disposed in abutment, the pixel defining layer is disposed between the two abutted second sub-pixels without disposing the isolation structure, the cathodes of the two abutted second sub-pixels are in an integrated structure, and the light emitting layers of the two abutted second sub-pixels are in an integrated structure.

9. The display panel of any one of claims 1-6, wherein the isolation structure comprises a conductive center layer and an eave layer disposed in a stack, the eave layer having a cross-sectional area greater than a cross-sectional area of the conductive center layer, and cathodes of adjacent subpixels are electrically connected through the conductive center layer.

10. A display device comprising the display panel according to any one of claims 1 to 9.