Display panel and display device

Abstract

The invention provides a display panel which comprises a first electrode located on one side of a substrate; the isolation column is located on the side, away from the substrate, of the first electrode; the pixel limiting layer is enclosed to form a pixel opening, and the orthographic projection of the pixel opening on the substrate is located in the orthographic projection of the first electrode on the substrate; the orthographic projection of the isolation column on the substrate is located in the orthographic projection of the pixel limiting layer on the substrate, and the orthographic projection of the boundary, facing the pixel opening, of the pixel limiting layer on the substrate and the orthographic projection of the boundary, facing the pixel opening, of the isolation column on the substrate are arranged at an interval; at least part of the luminescent material layer is broken at the boundary of the pixel defining layer towards the pixel opening; the second electrode is located on the side, away from the substrate, of the light-emitting material layer. The isolation columns are additionally arranged below the pixel limiting layer to form the undercut structure, so that at least part of the light-emitting material layer is disconnected at the boundary, facing the pixel openings, of the pixel limiting layer, and therefore electrical crosstalk between light-emitting units formed by the adjacent pixel openings can be reduced.

Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to a display panel and display device. Background Technology

[0002] Organic light-emitting diode (OLED) display technology is considered one of the most promising next-generation display technologies. Compared to liquid crystal displays, OLED displays offer advantages such as lower energy consumption, lower cost, self-emissiveness, wide viewing angles, and faster response times.

[0003] With the development of technology, users focus on visual perception to measure display characteristics. Therefore, color gamut and brightness jointly affect visual clarity. Thus, high brightness and wide color gamut are the goals pursued by various display technologies. In particular, high PPI OLED products are becoming more and more popular. However, these products still have shortcomings such as large brightness loss and low color gamut that urgently need to be improved. Summary of the Invention

[0004] The present invention provides a display panel and a display device to improve the performance of the display panel.

[0005] In a first aspect, this application provides a display panel, wherein the display panel includes:

[0006] Substrate;

[0007] The first electrode is located on one side of the substrate;

[0008] An isolation pillar is located on the side of the first electrode furthest from the substrate;

[0009] A pixel defining layer is formed by enclosing a pixel opening. The orthographic projection of the pixel opening onto the substrate is located within the orthographic projection of the first electrode onto the substrate. The orthographic projection of the isolation pillar onto the substrate is located within the orthographic projection of the pixel defining layer onto the substrate, and the orthographic projection of the boundary of the pixel defining layer toward the pixel opening onto the substrate is spaced apart from the orthographic projection of the boundary of the isolation pillar toward the pixel opening onto the substrate.

[0010] The light-emitting material layer, at least a portion of which is broken at the boundary of the pixel-defining layer toward the pixel opening;

[0011] The second electrode is located on the side of the light-emitting material layer away from the substrate.

[0012] In some embodiments, the light-emitting material layer includes at least a hole transport layer, which is broken at the boundary of the pixel defining layer toward the pixel opening;

[0013] In some embodiments, the light-emitting material layer further includes at least a charge-generating layer, which is broken at the boundary of the pixel-defining layer toward the pixel opening;

[0014] In some embodiments, the light-emitting material layer is broken at the boundary of the pixel defining layer toward the pixel opening;

[0015] In some embodiments, the thickness of the isolation pillar is greater than the thickness of the light-emitting material layer along the thickness direction of the display panel;

[0016] In some embodiments, the thickness of the isolation pillars is 2000 angstroms to 6000 angstroms along the thickness direction of the display panel;

[0017] In some embodiments, the material of the isolation column includes inorganic materials;

[0018] In some embodiments, the material of the isolation pillar includes at least one of indium zinc oxide and indium tin oxide.

[0019] In some embodiments, a first groove is provided on the side surface of the pixel defining layer away from the substrate, and the orthographic projection of the first groove on the substrate at least partially surrounds the orthographic projection of the pixel opening on the substrate.

[0020] In some embodiments, the orthographic projection of the first groove on the substrate does not overlap with the orthographic projection of the first electrode on the substrate;

[0021] In some embodiments, the first groove includes a sidewall and a bottom surface, and the included angle between the sidewall and the bottom surface is greater than 90°.

[0022] In some embodiments, the first groove includes a sidewall and a bottom surface, and the included angle between the sidewall and the bottom surface is 120°-150°.

[0023] In some embodiments, the depth of the first groove along the thickness direction of the display panel is 0.3 micrometers to 0.5 micrometers;

[0024] In some embodiments, the material of the pixel defining layer includes inorganic materials;

[0025] In some embodiments, the thickness of the pixel defining layer along the thickness direction of the display panel is 0.4 micrometers to 1.7 micrometers.

[0026] In some embodiments, the display panel further includes:

[0027] The encapsulation layer is located on the side of the second electrode away from the substrate;

[0028] In some embodiments, the encapsulation layer includes a first encapsulation layer, a second encapsulation layer, and a third encapsulation layer stacked sequentially, wherein the materials of the first encapsulation layer, the second encapsulation layer, and the third encapsulation layer are all inorganic materials, or the materials of the first encapsulation layer and the third encapsulation layer are both inorganic materials, and the material of the second encapsulation layer is an organic material.

[0029] In some embodiments, the thickness of the encapsulation layer is 0.5 micrometers to 3 micrometers along the thickness direction of the display panel;

[0030] In some embodiments, the material of the first encapsulation layer includes at least one of silicon nitride, silicon oxide, silicon oxynitride, aluminum oxide, and titanium oxide; the material of the third encapsulation layer includes at least one of silicon nitride, silicon oxide, silicon oxynitride, aluminum oxide, and titanium oxide; and the material of the second encapsulation layer includes silicon oxide.

[0031] In some embodiments, the display panel further includes a color filter layer, the color filter layer including a color resist, the color resist projected onto the substrate and the pixel opening projected onto the substrate at least partially overlap;

[0032] In some embodiments, the pixel aperture is orthogonally projected onto the substrate and lies within the orthogonal projection of the color resist onto the substrate;

[0033] In some embodiments, the thickness of the color resist is 0.8 micrometers to 2.5 micrometers along the thickness direction of the display panel.

[0034] In some embodiments, a plurality of first electrodes are provided, and the plurality of first electrodes are spaced apart; a plurality of pixel openings are provided, and the pixel openings are corresponding to the first electrodes; a plurality of color resists are provided, and the color resists are corresponding to the pixel openings.

[0035] In some embodiments, the orthographic projections of two adjacent color resists on the substrate have an overlapping region, the width of which is 0.5 micrometers to 2.5 micrometers;

[0036] In some embodiments, the overlapping region and the pixel opening do not overlap when projected onto the substrate;

[0037] In some embodiments, multiple color resists are provided; the multiple color resists include multiple first color resists, multiple second color resists and multiple third color resists, wherein the first color resists extend along a first direction, the second color resists extend along the first direction, and the third color resists extend along the first direction; the first direction is perpendicular to the thickness direction of the display panel.

[0038] In some embodiments, along the second direction, the third color resist, the second color resist, the first color resist, and the second color resist are arranged alternately in sequence; the second direction intersects the first direction, and the second direction is perpendicular to the thickness direction of the display panel;

[0039] In some embodiments, along the second direction, the orthogonal projections of any two color resists onto the substrate have an overlapping region, the width of which is 0.5 micrometers to 2.5 micrometers;

[0040] In some embodiments, a plurality of pixel openings are provided, and the orthogonal projection of a color resist on the substrate covers the orthogonal projections of a plurality of pixel openings on the substrate.

[0041] In some embodiments, the ratio of the number of first color resists projected onto the substrate and the number of second color resists projected onto the substrate and the number of third color resists projected onto the substrate and the number of pixel openings projected onto the substrate is 1:2:1.

[0042] In some embodiments, the first color resist is a blue color resist, the second color resist is a green color resist, and the third color resist is a red color resist. In some embodiments, the display panel further includes an organic layer located on the side of the color filter layer facing the substrate;

[0043] In some embodiments, the display panel further includes an encapsulation layer located on the side of the second electrode away from the substrate, and an organic layer located between the color filter layer and the encapsulation layer;

[0044] In some embodiments, the thickness of the organic layer along the thickness direction of the display panel is 0.2 micrometers to 0.5 micrometers;

[0045] In some embodiments, the display panel further includes a protective layer located on the side of the color filter layer away from the substrate.

[0046] In some embodiments, the light emitted by the luminescent material layer is white light.

[0047] Secondly, this application provides a display device, wherein: a display panel including any of the above-mentioned features.

[0048] This application adds isolation pillars below the pixel defining layer, controlling the isolation pillars and the pixel opening boundary enclosed by the pixel defining layer to form an undercut structure. This causes at least a portion of the light-emitting material layer to break at the boundary of the pixel defining layer facing the pixel opening, thereby reducing electrical crosstalk between light-emitting units formed in adjacent pixel openings. Furthermore, by adding isolation pillars above the first electrode, optical crosstalk between light-emitting units can be further reduced. Each light-emitting unit is composed of a first electrode, a light-emitting material layer located within the pixel opening, and a second electrode. Different electrical signals are applied to the first and second electrodes to control the corresponding light-emitting material layers to emit light, thereby improving the display effect of the display panel. Attached Figure Description

[0049] To more clearly illustrate the technical solutions in the embodiments or exemplary embodiments of this application, the drawings used in the description of the embodiments or exemplary embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0050] Figure 1 This is a cross-sectional structural diagram of a display panel provided in an embodiment of the present invention;

[0051] Figure 2 This is a schematic diagram of the structure of a light-emitting material layer provided in an embodiment of the present invention;

[0052] Figure 3 This is a schematic diagram of another luminescent material layer provided in an embodiment of the present invention;

[0053] Figure 4 In this invention Figure 1 A magnified structural diagram at point A in the middle;

[0054] Figure 5 In this invention Figure 1 Another enlarged structural diagram at point A;

[0055] Figure 6 In this invention Figure 1 Another enlarged structural diagram at point A;

[0056] Figure 7 A cross-sectional structural diagram of another display panel provided in an embodiment of the present invention;

[0057] Figure 8 This is a partial top view of a color filter layer provided in an embodiment of the present invention;

[0058] Figure 9 This is a partial top view of another color filter layer provided in an embodiment of the present invention;

[0059] Figure 10 This is a partial top view of another color filter layer provided in an embodiment of the present invention;

[0060] Figure 11 This is a schematic diagram of the structure of a display device provided in an embodiment of the present invention.

[0061] Explanation of reference numerals in the attached figures:

[0062] 1. Display device; 110. Substrate; 120. Buffer layer; 130. Semiconductor layer; 140. Gate insulating layer; 151. Gate; 152. Lower electrode; 161. First insulating layer; 162. Second insulating layer; 170. Upper electrode; 181. Source; 182. Drain; 191. First planarization layer; 192. Second planarization layer; 200. First electrode; 300. Isolation pillar; 400. Pixel defining layer; 410. Pixel aperture; 420. First groove; 500. 510, First common layer; 520, First light-emitting layer; 530, First charge-generating layer; 540, Second light-emitting layer; 550, Second charge-generating layer; 560, Third light-emitting layer; 570, Second common layer; 600, Second electrode; 610, Light extraction layer; 710, First encapsulation layer; 720, Second encapsulation layer; 730, Third encapsulation layer; 800, Organic layer; 910, First color resist; 920, Second color resist; 930, Third color resist; 940, Protective layer. Detailed Implementation

[0063] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of this application.

[0064] It should be understood that although the terms “first,” “second,” etc., may be used herein to describe various elements, this does not indicate any order, quantity, or importance, but is merely used to distinguish different components. These terms are used only to distinguish one element from another. For example, without departing from the scope of this application, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element. Words such as “comprising” or “including” mean that the element or object preceding the word covers the element or object listed following the word and its equivalents, without excluding other elements or objects.

[0065] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0066] Compared to LCD, OLED has a significant impact on color gamut and brightness, and has been widely used in various scenarios such as TV, monitor, mobile, and VR / AR. However, the inventors have discovered that high PPI (Pixels Per Inch) OLED display panels suffer from drawbacks such as significant brightness loss, optical crosstalk, and electrical crosstalk, which require further improvement.

[0067] In view of at least one of the above-mentioned problems, embodiments of this application provide a display panel and a display device.

[0068] The following will combine Figures 1-11 The display panel and display device provided in the embodiments of this application will be described.

[0069] See Figure 1 The present application provides a display panel, characterized in that the display panel includes:

[0070] Substrate 110;

[0071] The first electrode 200 is located on one side of the substrate 110;

[0072] The isolation pillar 300 is located on the side of the first electrode 200 away from the substrate 110;

[0073] A pixel defining layer 400 surrounds and forms a pixel opening 410. The orthographic projection of the pixel opening 410 on the substrate 110 lies within the orthographic projection of the first electrode 200 on the substrate 110, meaning that part of the first electrode 200 is not covered by the pixel defining layer 400. The orthographic projection of the isolation pillar 300 on the substrate 110 lies within the orthographic projection of the pixel defining layer 400 on the substrate 110, meaning that the isolation pillar 300 is completely covered by the pixel defining layer 400. The orthographic projection of the boundary of the pixel defining layer 400 toward the pixel opening 410 on the substrate 110 and the orthographic projection of the boundary of the isolation pillar 300 toward the pixel opening 410 on the substrate 110 are spaced apart.

[0074] The light-emitting material layer 500 is located on the side of the pixel defining layer 400 away from the substrate 110 and on the side of the first electrode 200 away from the substrate 110; at least a portion of the light-emitting material layer 500 is broken at the boundary of the pixel defining layer 400 toward the pixel opening 410.

[0075] The second electrode 600 is located on the side of the light-emitting material layer 500 away from the substrate 110.

[0076] This application adds an isolation pillar 300 below the pixel defining layer 400, controlling the isolation pillar 300 and the boundary of the pixel opening 410 enclosed by the pixel defining layer 400 to form an undercut structure. This causes at least a portion of the light-emitting material layer 500 to break at the boundary of the pixel defining layer 400 toward the pixel opening 410, thereby reducing electrical crosstalk between light-emitting units formed in adjacent pixel openings 410. Furthermore, by adding an isolation pillar 300 above the first electrode 200, optical crosstalk between light-emitting units can be further reduced. Each light-emitting unit is composed of the first electrode 200, the light-emitting material layer 500 located within the pixel opening 410, and the second electrode 600. Different electrical signals are applied to the first electrode 200 and the second electrode 600 to control the corresponding light-emitting material layer 500 to emit light.

[0077] Substrate 110 provides support for subsequent structural layers. In some examples, substrate 110 may be a rigid substrate, for example, the material of substrate 110 may be glass. In other examples, substrate 110 may be a flexible substrate, and the material of substrate 110 may include at least one of polyimide (PI), polyethylene terephthalate, polyethylene naphthalate, polyethylene, polyacrylate, polyetherimide, polycarbonate, polyarylate, polyethersulfone, silicon nitride, silicon oxide, and silicon oxynitride.

[0078] In some embodiments, the substrate 110 may include a multilayer stacked structure, for example, a multilayer stacked structure formed by stacking at least one layer of polyimide and at least one layer of silicon oxide.

[0079] See Figure 1 A buffer layer 120 is provided on one side of the substrate 110. The buffer layer 120 can be formed on the entire surface of the substrate 110 or can be formed by patterning.

[0080] The buffer layer 120 may be made of a suitable material, including PET, PEN, polyacrylate and / or polyimide, and may be formed into a layered structure in the form of a single layer or multiple layers stacked. The buffer layer 120 may also be formed of silicon oxide or silicon nitride or aluminum oxide, or may include a composite layer of organic and / or inorganic materials.

[0081] In some embodiments, the buffer layer 120 may be made of SiO2 thin film or SiN. X Transparent insulating materials such as thin films and Al2O3 films are used to further ensure the light transmittance of the transparent display panel.

[0082] An array layer is disposed on the side of the buffer layer 120 away from the substrate 110. The array layer includes a semiconductor layer 130, multiple metal layers, multiple insulating layers, and a planarization layer. The multiple metal layers include at least a first metal layer, a second metal layer, and a third metal layer. Each metal layer includes a corresponding circuit pattern. For example, the first metal layer includes a gate 151 and a lower electrode 152, the second metal layer includes an upper electrode 170, and the third metal layer includes a source 181 and a drain 182. To ensure that there is no interference between the metal layers, at least one insulating layer is provided between any two adjacent metal layers. Figure 1 As shown, the semiconductor layer 130 is disposed on the side of the buffer layer 120 away from the substrate 110. A gate insulating layer 140 is disposed between the semiconductor layer 130 and the first metal layer. A first insulating layer 161 is disposed between the first metal layer and the second metal layer. A second insulating layer 162 is disposed between the second metal layer and the third metal layer. The semiconductor layer 130, the gate insulating layer 140, the source 181, and the drain 182 cooperate to form a TFT unit structure (Thin Film Transistor). The lower electrode 152, the first insulating layer 161, and the upper electrode 170 cooperate to form a capacitor structure. The TFT unit structure and the capacitor structure together form a pixel driving circuit, which is used to drive the light-emitting unit to emit light. In addition, in order to ensure the display effect of the display panel, a planarization layer is disposed on the side of the third metal layer away from the substrate 110 to planarize the surface of the array layer and ensure the flatness of the subsequent first electrode 200. In one specific embodiment, as shown... Figure 1 As shown, the planarization layer includes a first planarization layer 191 and a second planarization layer 192 stacked sequentially, and the first electrode 200 is disposed on the side of the second planarization layer 192 away from the first planarization layer 191.

[0083] In some embodiments, the light emitted by the light-emitting material layer 500 in this application is white light. By setting the color of the light emitted by the light-emitting material layer 500 to white light, the fabrication cost of the light-emitting material layer 500 in the display panel can be reduced. That is, unlike display panels in related technologies, it is not necessary to use different masks to prepare light-emitting materials of different colors in steps. Since it is not necessary to change different masks to deposit different colored light-emitting materials on different pixel openings 410, the distance between two adjacent pixel openings 410 can be reduced, thereby increasing the PPI of the entire display panel and improving the display effect. For example, the final formed display panel is a high PPI display panel, such as a display panel with a PPI greater than 800 PPI or a display panel with a PPI greater than 1000 PPI.

[0084] In the above embodiment, since the formed display panel is a high PPI display panel, the distance between two adjacent pixel openings 410 is small. By adding the isolation pillar 300, the optical crosstalk between the light-emitting units can be further reduced through the combined action of the isolation pillar 300 and the pixel limiting layer 400.

[0085] Of course, in some other embodiments, the light emitted by the light-emitting material layer 500 disposed in different pixel openings 410 may be different. For example, the light emitted by the light-emitting material layer 500 in some pixel openings 410 is red, the light emitted by the light-emitting material layer 500 in some pixel openings 410 is blue, and the light emitted by the light-emitting material layer 500 in the remaining pixel openings 410 is green.

[0086] In some embodiments, the light-emitting material layer 500 includes at least a hole transport layer, which is disconnected at the boundary of the pixel defining layer 400 toward the pixel opening 410. The inventors have found that the hole transport layer is prone to causing crosstalk between adjacent sub-pixels. Therefore, through the structural design of the isolation pillar 300 and the pixel defining layer 400, the hole transport layer is disconnected at the boundary of the pixel defining layer 400 toward the pixel opening 410, reducing or preventing leakage current caused by lateral migration of electrons in the light-emitting material layer 500, thereby reducing the probability of electrical crosstalk between adjacent light-emitting units.

[0087] In some embodiments, the light material layer 500 further includes at least a hole injection layer, which is disconnected at the boundary of the pixel defining layer 400 toward the pixel opening 410, thereby further reducing the probability of electrical crosstalk between adjacent light-emitting units.

[0088] In some embodiments, the light-emitting material layer 500 further includes at least a charge-generating layer, which is disconnected at the boundary of the pixel defining layer 400 toward the pixel opening 410. Since the charge-generating layer can connect two light-emitting layers in series to form a stacked device, although the electron-hole pairs generated by the charge-generating layer can improve the luminous efficiency of the display panel by being transferred to the light-emitting layer, it can also easily cause electrical crosstalk between adjacent light-emitting units. Therefore, disconnecting the charge-generating layer at the boundary of the pixel defining layer 400 toward the pixel opening 410 can further reduce the probability of electrical crosstalk between adjacent light-emitting units.

[0089] like Figure 2As shown, in some embodiments, the light-emitting material layer 500 includes a stacked first common layer 510, a first light-emitting layer 520, a first charge-generating layer 530, a second light-emitting layer 540, a second charge-generating layer 550, a third light-emitting layer 560, and a second common layer 570. The first common layer 510 includes at least a hole transport layer, or it includes a stacked hole injection layer and a hole transport layer. The first light-emitting layer 520, the second light-emitting layer 540, and the third light-emitting layer 560 are used to emit light of different colors, but it is necessary to ensure that the light ultimately emitted from the pixel opening 410 is white light. For example, the first light-emitting layer 520 is used to emit red light, the second light-emitting layer 540 is used to emit blue light, and the third light-emitting layer 560 is used to emit green light. To improve luminous efficiency and reduce power consumption, a charge-generating layer is added between adjacent light-emitting layers. The second common layer 570 includes an electron transport layer and an electron injection layer.

[0090] Of course, in other embodiments, the luminescent material layer 500 may also include a luminescent compensation layer, a hole blocking layer, etc.

[0091] In addition, in some embodiments, other common layers are provided between the light-emitting layer and the charge-generating layer, which can be configured according to the actual situation.

[0092] In one specific embodiment, at least the first common layer 510, the first light-emitting layer 520, the first charge-generating layer 530, the second light-emitting layer 540, and the second charge-generating layer 550 in the light-emitting material layer 500 are disconnected at the boundary of the pixel defining layer 400 toward the pixel opening 410; the third light-emitting layer 560 and the second common layer 570 of the light-emitting material layer 500 are not disconnected at the boundary of the pixel defining layer 400 toward the pixel opening 410, that is, the light-emitting material layer 500 is partially disconnected at the boundary of the pixel defining layer 400 toward the pixel opening 410. (See reference...) Figure 6 As shown.

[0093] In some other embodiments, the light-emitting material layer 500 is broken at the boundary of the pixel defining layer 400 toward the pixel opening 410, that is, the light-emitting material layer 500 is divided into two spaced-apart parts by the boundary of the pixel opening 410. See also... Figure 4 or Figure 5 As shown.

[0094] When the light-emitting material layer 500 completely breaks at the boundary of the pixel limiting layer 400 toward the pixel opening 410, as Figure 4 As shown, the second electrode 600 and the isolation post 300 are spaced apart. Of course, in other embodiments, such as... Figure 5 As shown, the second electrode 600 is in direct contact with the sidewall of the isolation pillar 300.

[0095] like Figure 3As shown, in some embodiments, the light-emitting material layer 500 includes a stacked first common layer 510, a first light-emitting layer 520, a first charge-generating layer 530, a second light-emitting layer 540, a third light-emitting layer 560, and a second common layer 570. The first common layer 510 includes at least a hole transport layer, or it includes a stacked hole injection layer and a hole transport layer. The first light-emitting layer 520, the second light-emitting layer 540, and the third light-emitting layer 560 are used to emit light of different colors, but it is necessary to ensure that the light emission is within the specified range. The light emitted from the pixel opening 410 is white light. For example, the first light-emitting layer 520 is used to emit blue light, the second light-emitting layer 540 is used to emit red light, and the third light-emitting layer 560 is used to emit green light. In order to improve luminous efficiency and reduce power consumption, a first charge generation layer 530 is provided between the first light-emitting layer 520 and the second light-emitting layer 540 to form a series structure of the first light-emitting layer 520 and the second light-emitting layer 540. At the same time, the charge generation layer between the second light-emitting layer 540 and the third light-emitting layer 560 is eliminated to reduce production costs.

[0096] Of course, in other embodiments, the luminescent material layer 500 may also include a luminescent compensation layer, a hole blocking layer, etc.

[0097] In addition, in some embodiments, other common layers are provided between the light-emitting layer and the charge-generating layer, which can be configured according to the actual situation.

[0098] In one specific embodiment, at least the first common layer 510, the first light-emitting layer 520, and the first charge-generating layer 530 in the light-emitting material layer 500 are disconnected at the boundary of the pixel defining layer 400 toward the pixel opening 410, while the second light-emitting layer 540, the third light-emitting layer 560, and the second common layer 570 are not disconnected at the boundary of the pixel defining layer 400 toward the pixel opening 410. That is, the light-emitting material layer 500 is partially disconnected at the boundary of the pixel defining layer 400 toward the pixel opening 410. (See reference...) Figure 6 As shown.

[0099] In some other embodiments, the light-emitting material layer 500 is broken at the boundary of the pixel defining layer 400 toward the pixel opening 410, that is, the light-emitting material layer 500 is divided into two spaced-apart parts by the boundary of the pixel opening 410. See also... Figure 4 or Figure 5 As shown.

[0100] In some embodiments, in order to further improve the light emission efficiency of the display panel, reference is made to... Figure 2 and Figure 3The display panel also includes a light extraction layer 610 disposed on the side of the second electrode 600 away from the first electrode 200. The light extraction layer 610 reduces the optical waveguide effect, thereby improving the overall light extraction performance of the display panel. In addition, in some other embodiments, the display panel also includes a protective layer disposed on the side of the light extraction layer 610 away from the first electrode 200. The protective layer may be made of LiF (lithium fluoride) material, which serves to protect the light extraction layer 610.

[0101] In some embodiments, to avoid electrical crosstalk between adjacent light-emitting units, along the thickness direction of the display panel, i.e., as shown... Figure 1 As shown, in the Z direction, the thickness of the isolation pillar 300 is greater than the thickness of the light-emitting material layer 500, thereby causing the light-emitting material layer 500 to be completely disconnected at the boundary of the pixel limiting layer 400 toward the pixel opening 410, thereby avoiding electrical crosstalk between adjacent light-emitting units.

[0102] In some other embodiments, along the thickness direction of the display panel, i.e. Figure 1 As shown, the thickness of the isolation pillar 300 in the Z direction is 2000 angstroms to 6000 angstroms. For example, the thickness of the isolation pillar 300 in the Z direction is 2000 angstroms, 2110 angstroms, 2325 angstroms, 3000 angstroms, 3700 angstroms, 3900 angstroms, 4000 angstroms, 4500 angstroms, 4600 angstroms, 4800 angstroms, 5000 angstroms, 5100 angstroms, 5250 angstroms, 5380 angstroms, 5600 angstroms, 6000 angstroms, etc.

[0103] By controlling the thickness of the isolation pillar 300, on the one hand, the problem of optical crosstalk between light-emitting units can be reduced, improving the display effect of the display panel. On the other hand, the light-emitting material layer 500 is partially broken at the boundary of the pixel limiting layer 400 toward the pixel opening 410. While ensuring that electrical crosstalk does not occur between adjacent light-emitting units, it can further ensure that the second electrode 600 is a continuous film layer away from the substrate 110 of the light-emitting material layer 500, that is, the second electrode 600 is set on the entire surface. This ensures that the display panel can provide voltage to the light-emitting material layer 500 in all pixel openings 410 through the second electrode 600, thereby realizing light emission.

[0104] In some embodiments, the orthographic projection of the isolation pillar 300 on the substrate 110 is an annular shape, and the outer contour of the annular shape coincides with the outer contour of the orthographic projection of the first electrode 200 on the substrate 110, thereby enabling it to be formed in one step during the patterning process, reducing production costs.

[0105] One of the first electrode 200 and the second electrode 600 is an anode and the other is a cathode. By applying different voltages to the cathode and the anode, the light-emitting material layer 500 is controlled to emit light.

[0106] In one specific embodiment, the first electrode 200 is the anode, which is connected to the thin-film transistor in the array layer through a via in the planarization layer, thereby providing a corresponding electrical signal to the anode. The first electrode 200 may include a multilayer structure, such as a reflective layer and a pair of conductive oxide layers covering the upper and lower surfaces of the reflective layer, respectively. The reflective layer can be formed, for example, using silver, a metal material with excellent light reflectivity. Each conductive oxide layer can be formed, for example, from a transparent conductive oxide such as ITO (Indium Tin Oxide), IZO (Indium Zinc Oxide), or IGZO (Indium Gallium Zinc Oxide). The second electrode 600 is the cathode, which can be made of magnesium, calcium, sodium, potassium, titanium, indium, yttrium, lithium, gadolinium, aluminum, silver, tin, lead, cesium, barium, LiF / Al, Li2O / Al, LiF / Ca, BaF2 / Ca, and combinations thereof.

[0107] To further improve the display effect of the display panel, the material of the isolation pillar 300 includes inorganic materials; for example, at least one of indium zinc oxide and indium tin oxide.

[0108] refer to Figure 1 A first groove 420 is provided on the side surface of the pixel limiting layer 400 away from the substrate 110. The orthographic projection of the first groove 420 on the substrate 110 at least partially surrounds the orthographic projection of the pixel opening 410 on the substrate 110. The design of the first groove 420 can increase the path between adjacent light-emitting units, that is, increase the overall length of the light-emitting material layer 500 between adjacent light-emitting units, thereby further reducing the probability of electrical crosstalk between adjacent light-emitting units.

[0109] In some embodiments, a first groove 420 is disposed around the pixel opening 410, and the number of first grooves 420 is set to one. This reduces the probability of electrical crosstalk between adjacent light-emitting units while ensuring that the display panel has a high PPI. Of course, in other embodiments, the number of first grooves 420 surrounding the pixel opening 410 can be multiple, for example, more than two.

[0110] refer to Figure 1 The orthographic projection of the first groove 420 on the substrate 110 does not overlap with the orthographic projection of the first electrode 200 on the substrate 110, so as to avoid the first groove 420 affecting the light emitted by the light-emitting unit.

[0111] Furthermore, in some embodiments, the first groove 420 includes a sidewall and a bottom surface, and the included angle between the sidewall and the bottom surface is greater than 90°; specifically, the first groove 420 includes a sidewall and a bottom surface, and the included angle between the sidewall and the bottom surface is 120°-150°; for example, the included angle between the sidewall and the bottom surface is 120°, 122°, 125°, 127°, 130°, 135°, 137°, 140°, 143°, 145°, 146°, 150°, etc.

[0112] By controlling the angle between the sidewall and the bottom surface, the light-emitting material layer 500 between two adjacent light-emitting units can have a large path, which can effectively prevent the second electrode 600 between two adjacent light-emitting units from breaking, thereby ensuring the display effect of the display panel.

[0113] Furthermore, along the thickness direction of the display panel, i.e. in the Z direction, the depth of the first groove 420 is 0.3 micrometers to 0.5 micrometers; for example, the depth of the first groove 420 is 0.3 micrometers, 0.32 micrometers, 0.33 micrometers, 0.35 micrometers, 0.38 micrometers, 0.4 micrometers, 0.41 micrometers, 0.43 micrometers, 0.45 micrometers, 0.48 micrometers, 0.5 micrometers, etc.

[0114] In some other embodiments, a protrusion is provided on the side surface of the pixel defining layer 400 away from the substrate 110, and the orthogonal projection of the protrusion on the substrate 110 at least partially surrounds the orthogonal projection of the pixel opening 410 on the substrate 110; by providing the protrusion, the path between adjacent light-emitting units can also be increased, that is, the overall length of the light-emitting material layer 500 between adjacent light-emitting units is increased, thereby further reducing the probability of electrical crosstalk between adjacent light-emitting units.

[0115] In the above embodiments, the protrusion can be an integral structure with the pixel limiting layer 400, that is, the protrusion is a part of the pixel limiting layer 400 and the two are made of the same material; of course, the protrusion and the pixel limiting layer 400 are separate structures, that is, there is an interface between the two, making them two film layers.

[0116] In addition, the protrusion can be set around the pixel opening 410, and the number of protrusions can be one or more, depending on the actual situation.

[0117] Furthermore, in order to further reduce the thickness of the display panel, the pixel limiting layer 400 is made of inorganic materials; and the thickness of the pixel limiting layer 400 is 0.4 micrometers to 1.7 micrometers along the thickness direction of the display panel; for example, the thickness of the pixel limiting layer 400 is 0.4 micrometers, 0.5 micrometers, 0.54 micrometers, 0.6 micrometers, 0.65 micrometers, 0.7 micrometers, 0.72 micrometers, 0.8 micrometers, 0.85 micrometers, 0.94 micrometers, 0.95 micrometers, 1 micrometer, 1.1 micrometers, 1.14 micrometers, 1.2 micrometers, 1.25 micrometers, 1.3 micrometers, 1.36 micrometers, 1.4 micrometers, 1.42 micrometers, 1.5 micrometers, 1.55 micrometers, 1.6 micrometers, or 1.62 micrometers.

[0118] The display panel also includes an encapsulation layer located on the side of the second electrode 600 away from the substrate 110. The encapsulation layer protects the display panel from moisture intrusion that could cause the light-emitting unit to fail.

[0119] In some embodiments, the encapsulation layer includes a first encapsulation layer 710, a second encapsulation layer 720, and a third encapsulation layer 730 stacked sequentially, wherein the materials of the first encapsulation layer 710, the second encapsulation layer 720, and the third encapsulation layer 730 are all inorganic materials, or the materials of the first encapsulation layer 710 and the third encapsulation layer 730 are both inorganic materials, and the material of the second encapsulation layer 720 is an organic material.

[0120] To further improve the display effect of the display panel and avoid optical crosstalk between adjacent light-emitting units, the thickness of the encapsulation layer along the thickness direction of the display panel, i.e., in the Z direction, is 0.5 micrometers to 3 micrometers; for example, the thickness of the encapsulation layer is 0.5 micrometers, 0.6 micrometers, 0.65 micrometers, 0.75 micrometers, 0.8 micrometers, 0.9 micrometers, 1 micrometer, 1.2 micrometers, 1.5 micrometers, 1.75 micrometers, 1.8 micrometers, 2 micrometers, 2.1 micrometers, 2.25 micrometers, 2.5 micrometers, 2.8 micrometers, and 3 micrometers.

[0121] Furthermore, the material of the first encapsulation layer 710 includes at least one of silicon nitride, silicon oxide, silicon oxynitride, aluminum oxide, and titanium oxide; the material of the third encapsulation layer 730 includes at least one of silicon nitride, silicon oxide, silicon oxynitride, aluminum oxide, and titanium oxide; and the material of the second encapsulation layer 720 includes silicon oxide.

[0122] It is worth noting that in some embodiments, such as Figure 1As shown, the first encapsulation layer 710 and the third encapsulation layer 730 are fabricated using ALD (atomic layer deposition), resulting in a small thickness for the first encapsulation layer 710 and the third encapsulation layer 730. This ensures a reduction in the overall thickness of the encapsulation layer and further avoids optical crosstalk between adjacent light-emitting units. For example, the materials of the first encapsulation layer 710 and the third encapsulation layer 730 can be at least one of aluminum oxide and titanium oxide. The second encapsulation layer 720 is fabricated using CVD (chemical vapor deposition), further reducing its thickness. For example, the material of the second encapsulation layer 720 can be silicon oxide.

[0123] like Figure 7 As shown, in some other embodiments, the first encapsulation layer 710 and the third encapsulation layer 730 are fabricated using ALD (atomic layer deposition), resulting in a small thickness for the first encapsulation layer 710 and the third encapsulation layer 730, ensuring a reduction in the overall thickness of the encapsulation layer, thereby further avoiding optical crosstalk between adjacent light-emitting units. For example, the materials of the first encapsulation layer 710 and the third encapsulation layer 730 can be at least one of aluminum oxide and titanium oxide. The second encapsulation layer 720 is fabricated using IJP (inkjet printing), thereby ensuring the flatness of the encapsulation layer on the side away from the substrate 110. For example, the second encapsulation layer 720 is made of an organic material.

[0124] Of course, in some other embodiments, the first encapsulation layer 710 and the third encapsulation layer 730 can be prepared by CVD, and the second encapsulation layer 720 can be prepared by IJP.

[0125] In order to enable the display panel to display different colors according to the actual situation, such as Figure 1 As shown, in some embodiments, the display panel further includes a color filter layer, which includes a color resist. The color resist is projected onto the substrate 110 in an orthographic projection and the pixel opening 410 is projected onto the substrate 110 in an orthographic projection in a .... The color resist allows light of a specific wavelength to pass through. By setting the color resist to filter white light, the light emitted by the display panel in the end presents different colors.

[0126] Preferably, the pixel opening 410 is orthogonally projected onto the substrate 110 within the orthogonal projection of the color resist onto the substrate 110.

[0127] Along the thickness direction of the display panel, the thickness of the color resist ranges from 0.8 micrometers to 2.5 micrometers. For example, in the Z direction, the thickness of the color resist is 0.8 micrometers, 0.89 micrometers, 0.9 micrometers, 0.98 micrometers, 1 micrometer, 1.2 micrometers, 1.3 micrometers, 1.5 micrometers, 1.8 micrometers, 2 micrometers, 2.1 micrometers, 2.3 micrometers, 2.35 micrometers, 2.4 micrometers, 2.5 micrometers, etc.

[0128] In some embodiments, multiple first electrodes 200 are provided, and the multiple first electrodes 200 are spaced apart. Multiple pixel openings 410 are provided, and the pixel openings 410 are corresponding to the first electrodes 200. Multiple color resists are provided, and the color resists are corresponding to the pixel openings 410. In order to further reduce the reflectivity of the display panel and improve the display effect of the display panel, and at the same time avoid optical crosstalk between adjacent light-emitting units, the orthogonal projections of two adjacent color resists on the substrate 110 have an overlapping area. The width W1 of the overlapping area is 0.5 micrometers to 2.5 micrometers, that is, perpendicular to the X direction in the Z direction. The overlapping area absorbs ambient light and blocks the light emitted by the light-emitting unit from a wide viewing angle, thereby improving the display effect of the display panel. For example, the width W1 of the overlapping region is 0.5 μm, 0.53 μm, 0.58 μm, 0.6 μm, 0.62 μm, 0.65 μm, 0.68 μm, 0.7 μm, 0.72 μm, 0.75 μm, 0.78 μm, 0.8 μm, 0.89 μm, 0.9 μm, 0.98 μm, 1 μm, 1.2 μm, 1.3 μm, 1.5 μm, 1.8 μm, 2 μm, 2.1 μm, 2.3 μm, 2.35 μm, 2.4 μm, 2.5 μm, etc.

[0129] like Figure 1 As shown, in order not to affect the light emission of the light-emitting unit, the overlapping area and the pixel opening 410 do not overlap when projected onto the substrate 110.

[0130] Furthermore, the distance between the boundary of the overlapping region and the orthographic projection of the boundary of the pixel limiting layer 400 toward the pixel opening 410 onto the substrate 110 is W2, where 0.15 μm ≤ W2 ≤ 0.25 μm. For example, in the X direction, W2 is 0.15 μm, 0.16 μm, 0.18 μm, 0.2 μm, 0.21 μm, 0.22 μm, 0.23 μm, 0.25 μm, etc. By limiting W2, the display effect of the display panel can be guaranteed while maintaining a high PPI display.

[0131] In some embodiments, combined with Figure 8 The display panel has multiple color resists, including multiple first color resists 910, multiple second color resists 920, and multiple third color resists 930. The first color resists 910, the second color resists 920, and the third color resists 930 extend along a first direction. The first direction is perpendicular to the thickness direction of the display panel, i.e., the first direction is the Y direction. The first color resists 910, the second color resists 920, and the third color resists 930 can transmit light of different colors.

[0132] Preferably, along the second direction, the third color resist 930, the second color resist 920, the first color resist 910, and the second color resist 920 are arranged alternately in sequence; the second direction intersects the first direction, and the second direction is perpendicular to the thickness direction of the display panel; wherein, the second direction is the X direction, and the first direction is the Y direction. Preferably, the second direction is perpendicular to the first direction.

[0133] Furthermore, along the second direction, any two adjacent color resists have overlapping projections on the substrate 110, with the width W1 of the overlapping region ranging from 0.5 micrometers to 2.5 micrometers; for example, the width W1 of the overlapping region is 0.5 micrometers, 0.53 micrometers, 0.58 micrometers, 0.6 micrometers, 0.62 micrometers, 0.65 micrometers, 0.68 micrometers, 0.7 micrometers, 0.72 micrometers, 0.75 micrometers, 0.78 micrometers, 0.8 micrometers, 0.89 micrometers, 0.9 micrometers, 0.98 micrometers, 1 micrometer, 1.2 micrometers, 1.3 micrometers, 1.5 micrometers, 1.8 micrometers, 2 micrometers, 2.1 micrometers, 2.3 micrometers, 2.35 micrometers, 2.4 micrometers, 2.5 micrometers, etc.

[0134] In this application, multiple pixel openings 410 are provided, and the orthogonal projection of one color resist on the substrate 110 covers the orthogonal projections of multiple pixel openings 410 on the substrate 110; that is, a first color resist 910 covers multiple pixel openings 410, a second color resist 920 covers multiple pixel openings 410, and a third color resist 930 covers multiple pixel openings 410. By designing a color resist that extends in one direction, the overall design is simpler and easier to manufacture, while also reducing optical crosstalk.

[0135] Because different color resists are prepared in different orders, the last color resist can cover the color resists on the opposite sides. Therefore, in the attached figure, the boundary of the last color resist is a solid line, while the color resists on the opposite sides are covered, so the boundary between them is a dashed line.

[0136] Furthermore, the ratio of the number of first color resists 910 projected onto the substrate 110 covering the pixel openings 410, the number of second color resists 920 projected onto the substrate 110 covering the pixel openings 410, and the number of third color resists 930 projected onto the substrate 110 covering the pixel openings 410 is 1:2:1. This structural design ensures the linearity of the display panel during display, effectively reduces jagged edges, and improves the display effect.

[0137] Preferably, the first color resist 910 is a blue color resist, the second color resist 920 is a green color resist, and the third color resist 930 is a red color resist.

[0138] like Figures 8-10As shown, the shape of the orthographic projection of the pixel opening 410 onto the substrate 110 can be circular, elliptical, square, regular hexagonal, etc., and can be designed according to actual conditions. Furthermore, Figures 8-10 This is just a partial schematic diagram, and the number of pixel openings (410) is only for illustration and does not represent the entirety.

[0139] It is worth noting that the encapsulation layer in this application is thin, and the pixel limiting layer 400 and the isolation pillar 300 are made of inorganic materials, which can reduce the distance between the color filter layer and the light-emitting unit, thereby effectively reducing optical crosstalk between adjacent light-emitting units and improving the display effect of the display panel.

[0140] Because the encapsulation layer is thin and made of inorganic materials, the side of the encapsulation layer away from the substrate 110 is not flat to a certain extent. In order to further ensure the display effect of the display panel, in some embodiments, the display panel also includes an organic layer 800. The organic layer 800 is located on the side of the color filter layer facing the substrate 110, that is, the organic layer 800 is located between the color filter layer and the encapsulation layer. The organic layer 800 flattens the side of the encapsulation layer away from the substrate 110, ensuring the flatness of the subsequent color filter layer preparation and ensuring the light emission effect.

[0141] In some embodiments, the thickness of the organic layer 800 along the thickness direction of the display panel is 0.2 micrometers to 0.5 micrometers; for example, the thickness of the organic layer 800 is 0.2 micrometers, 0.21 micrometers, 0.23 micrometers, 0.25 micrometers, 0.3 micrometers, 0.32 micrometers, 0.33 micrometers, 0.35 micrometers, 0.38 micrometers, 0.4 micrometers, 0.41 micrometers, 0.43 micrometers, 0.45 micrometers, 0.48 micrometers, 0.5 micrometers, etc. By controlling the thickness of the organic layer 800, on the one hand, the distance between the color filter layer and the light-emitting unit can be reduced, thereby effectively reducing optical crosstalk between adjacent light-emitting units; on the other hand, the planarization effect of the encapsulation layer can also be guaranteed.

[0142] In some embodiments, the display panel further includes a protective layer 940 located on the side of the color filter layer away from the substrate 110, which protects the color filter layer.

[0143] In addition, the display panel also includes a touch layer, a cover plate, etc., located on the side of the protective layer 940 away from the substrate 110.

[0144] See Figure 11 As shown, this application also provides a display device 1, including the display panel in any of the above embodiments. This improves the display effect of the display device 1.

[0145] The display device 1 may include a device with image processing capabilities. For example, the display device 1 may be a laptop computer, mobile phone, wireless device, personal digital assistant (PDA), handheld or portable computer, GPS receiver / navigator, camera, MP4 video player, camcorder, game console, watch, clock, calculator, TV monitor, flat panel display, computer monitor, car display (e.g., odometer display, etc.), navigator, cockpit controller and / or display, camera view display (e.g., display of a rearview camera in a vehicle), electronic photograph, electronic billboard or sign, projector, etc.

[0146] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0147] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A display panel, characterized in that, The display panel includes: Substrate; The first electrode is located on one side of the substrate; An isolation pillar is located on the side of the first electrode away from the substrate; A pixel defining layer surrounds and forms a pixel opening, the orthographic projection of the pixel opening on the substrate is located within the orthographic projection of the first electrode on the substrate; the orthographic projection of the isolation pillar on the substrate is located within the orthographic projection of the pixel defining layer on the substrate, and the orthographic projection of the boundary of the pixel defining layer toward the pixel opening on the substrate and the orthographic projection of the boundary of the isolation pillar toward the pixel opening on the substrate are spaced apart; A light-emitting material layer, at least a portion of which is broken at the boundary of the pixel defining layer toward the pixel opening; The second electrode is located on the side of the light-emitting material layer away from the substrate.

2. The display panel according to claim 1, characterized in that, The light-emitting material layer includes at least a hole transport layer, which is broken at the boundary of the pixel defining layer toward the pixel opening; Preferably, the light-emitting material layer further includes at least a charge-generating layer, which is interrupted at the boundary of the pixel defining layer toward the pixel opening; Preferably, the luminescent material layer is broken at the boundary of the pixel defining layer toward the pixel opening; Preferably, along the thickness direction of the display panel, the thickness of the isolation pillar is greater than the thickness of the light-emitting material layer; Preferably, the thickness of the isolation pillar is 2000 angstroms to 6000 angstroms along the thickness direction of the display panel; Preferably, the material of the isolation column includes inorganic materials; Preferably, the material of the isolation column includes at least one of indium zinc oxide and indium tin oxide.

3. The display panel according to claim 1, characterized in that, The pixel defining layer has a first groove on the side surface away from the substrate, and the orthographic projection of the first groove on the substrate at least partially surrounds the orthographic projection of the pixel opening on the substrate; Preferably, the orthographic projection of the first groove on the substrate does not overlap with the orthographic projection of the first electrode on the substrate; Preferably, the first groove includes a sidewall and a bottom surface, and the included angle between the sidewall and the bottom surface is greater than 90°; Preferably, the first groove includes a sidewall and a bottom surface, and the included angle between the sidewall and the bottom surface is 120°-150°; Preferably, the depth of the first groove is 0.3 micrometers to 0.5 micrometers along the thickness direction of the display panel; Preferably, the material of the pixel defining layer includes inorganic materials; Preferably, the thickness of the pixel defining layer is 0.4 micrometers to 1.7 micrometers along the thickness direction of the display panel.

4. The display panel according to claim 1, characterized in that, The display panel also includes: An encapsulation layer is located on the side of the second electrode away from the substrate; Preferably, the encapsulation layer includes a first encapsulation layer, a second encapsulation layer, and a third encapsulation layer stacked sequentially, wherein the materials of the first encapsulation layer, the second encapsulation layer, and the third encapsulation layer are all inorganic materials, or the materials of the first encapsulation layer and the third encapsulation layer are both inorganic materials, and the material of the second encapsulation layer is an organic material; Preferably, the thickness of the encapsulation layer is 0.5 micrometers to 3 micrometers along the thickness direction of the display panel; Preferably, the material of the first encapsulation layer includes at least one of silicon nitride, silicon oxide, silicon oxynitride, aluminum oxide, and titanium oxide; the material of the third encapsulation layer includes at least one of silicon nitride, silicon oxide, silicon oxynitride, aluminum oxide, and titanium oxide; and the material of the second encapsulation layer includes silicon oxide.

5. The display panel according to any one of claims 1-4, characterized in that, The display panel further includes a color filter layer, which includes a color resist, and the orthographic projection of the color resist onto the substrate and the orthographic projection of the pixel opening onto the substrate at least partially overlap; Preferably, the pixel opening is orthographically projected onto the substrate within the orthographic projection of the color resist onto the substrate; Preferably, the thickness of the color resist is 0.8 micrometers to 2.5 micrometers along the thickness direction of the display panel.

6. The display panel according to claim 5, characterized in that, Multiple first electrodes are provided, and the multiple first electrodes are arranged at intervals; multiple pixel openings are provided, and the pixel openings are arranged corresponding to the first electrodes; multiple color resists are provided, and the color resists are arranged corresponding to the pixel openings. Preferably, the orthographic projections of two adjacent color resists on the substrate have an overlapping region, and the width of the overlapping region is 0.5 micrometers to 2.5 micrometers; Preferably, the overlapping area and the pixel opening do not overlap when projected onto the substrate.

7. The display panel according to claim 5, characterized in that, The color resist is provided in multiple ways; the multiple color resists include multiple first color resists, multiple second color resists and multiple third color resists, wherein the first color resists extend along a first direction, the second color resists extend along the first direction, and the third color resists extend along the first direction; the first direction is perpendicular to the thickness direction of the display panel. Preferably, along the second direction, the third color resist, the second color resist, the first color resist, and the second color resist are arranged alternately in sequence; the second direction intersects the first direction, and the second direction is perpendicular to the thickness direction of the display panel; Preferably, along the second direction, any two adjacent color resists have overlapping projections on the substrate, and the width of the overlapping region is 0.5 micrometers to 2.5 micrometers. Preferably, multiple pixel openings are provided, and the orthogonal projection of one color resist on the substrate covers the orthogonal projection of multiple pixel openings on the substrate; Preferably, the ratio of the number of times the orthogonal projections of the plurality of first color resists on the substrate cover the orthogonal projections of the pixel opening on the substrate, the number of times the orthogonal projections of the plurality of second color resists on the substrate cover the orthogonal projections of the pixel opening on the substrate, to the number of times the orthogonal projections of the plurality of third color resists on the substrate cover the orthogonal projections of the pixel opening on the substrate is 1:2:1; Preferably, the first color resist is a blue color resist, the second color resist is a green color resist, and the third color resist is a red color resist.

8. The display panel according to claim 5, characterized in that, The display panel further includes an organic layer located on the side of the color filter layer facing the substrate; Preferably, the display panel further includes an encapsulation layer located on the side of the second electrode away from the substrate, and the organic layer is located between the color filter layer and the encapsulation layer; Preferably, the thickness of the organic layer along the thickness direction of the display panel is 0.2 micrometers to 0.5 micrometers; Preferably, the display panel further includes a protective layer located on the side of the color filter layer away from the substrate.

9. The display panel according to claim 1, characterized in that, The light emitted by the luminescent material layer is white light.

10. A display device, characterized in that: The display panel includes any one of claims 1-9.

Images