Display panel and display device

Abstract

The application discloses a display panel and a display device. The display panel comprises a substrate, a pixel definition layer, a light-emitting layer and a light regulation layer which are arranged in layers. The pixel definition layer comprises a plurality of pixel openings. The light-emitting layer comprises a plurality of light-emitting units in the pixel openings, and the plurality of light-emitting units comprise first, second and third light-emitting units. The light regulation layer comprises first, second and third filter areas and a light-blocking area between two adjacent filter areas. The first filter area comprises a single-color filter part. The second and third filter areas each comprise a multi-color filter part. The transmittance of the multi-color filter part to light emitted by the second and third light-emitting units is higher than that to light emitted by the first light-emitting unit. The light-blocking area comprises a single-color filter part and a multi-color filter part arranged in layers. The display panel provided by the application has a significantly improved purple hue phenomenon, and the preparation process of a black matrix can be omitted.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of display, and particularly relates to a display panel and a display device. BACKGROUND

[0002] Organic light emitting diode (OLED) panels, display panels using light emitting diode (LED) devices, and other planar display panels are widely used in mobile phones, televisions, personal digital assistants, digital cameras, notebook computers, desktop computers, and other consumer electronic products due to their high image quality, power saving, thin body, wide application range, and other advantages, and have become the mainstream in display devices.

[0003] The display panel in the related art has a problem of purple color phase, which seriously affects the user experience. SUMMARY

[0004] The purpose of the present application is to at least solve the problem of purple color phase of the display panel. The purpose is achieved by the following technical solutions:

[0005] The first aspect of the present application provides a display panel comprising:

[0006] a substrate;

[0007] a pixel definition layer located on one side of the substrate and comprising a plurality of pixel openings;

[0008] a light emitting layer located on one side of the substrate and comprising a plurality of light emitting units, the light emitting units being located within the pixel openings, and the plurality of light emitting units comprising first, second, and third light emitting units;

[0009] a light ray regulation layer located on a side of the light emitting layer facing away from the substrate and comprising a plurality of light filtering regions, the plurality of light filtering regions comprising first, second, and third light filtering regions corresponding to the first, second, and third light emitting units, respectively, and the light ray regulation layer further comprising a light shielding region located between two adjacent light filtering regions, wherein

[0010] the first light filtering region comprises a single-color light filtering portion that allows light emitted by the first light emitting unit to pass through;

[0011] the second, third, and light shielding regions each comprise a multi-color light filtering portion, and the transmittance of the multi-color light filtering portion to light emitted by the second and third light emitting units is higher than the transmittance of the multi-color light filtering portion to light emitted by the first light emitting unit;

[0012] The light shielding area further comprises the monochromatic filter layer arranged in a stack with the polychromatic filter layer.

[0013] The light ray regulation layer in the present application comprises a monochromatic filter layer and a polychromatic filter layer. The monochromatic filter layer is used to filter the light emitted by the first light emitting unit. The polychromatic filter layer is mainly used to filter the light emitted by the second light emitting unit and the third light emitting unit. Compared with the polychromatic filter function layer having a high transmittance to the light emitted by the first light emitting unit, the second light emitting unit and the third light emitting unit, the light ray regulation layer can improve the display effect of the display panel by respectively designing the parameters of the monochromatic filter layer and the polychromatic filter layer, thereby solving the problem of color phase deviation to purple.

[0014] In some embodiments of the present application, the transmittance of the polychromatic filter layer to the light emitted by the first light emitting unit is less than or equal to 20%.

[0015] In some embodiments of the present application, the first light emitting unit is a green light emitting unit, and the material of the monochromatic filter layer comprises a colloid and green dye. The second light emitting unit is a blue light emitting unit, and the third light emitting unit is a red light emitting unit. The material of the polychromatic filter layer comprises a colloid, red dye and blue dye. The transmittance of the polychromatic filter layer to the light emitted by the second light emitting unit ranges from 60% to 65%, and the transmittance of the polychromatic filter layer to the light emitted by the third light emitting unit ranges from 60% to 70%; or,

[0016] The first light emitting unit is a blue light emitting unit, and the material of the monochromatic filter layer comprises a colloid and blue dye. The second light emitting unit is a red light emitting unit, and the third light emitting unit is a green light emitting unit. The material of the polychromatic filter layer comprises a colloid, red dye and green dye. The transmittance of the polychromatic filter layer to the light emitted by the second light emitting unit ranges from 60% to 70%, and the transmittance of the polychromatic filter layer to the light emitted by the third light emitting unit ranges from 55% to 60%.

[0017] The first light emitting unit is a red light emitting unit, and the material of the monochromatic filter layer comprises a colloid and red dye. The second light emitting unit is a blue light emitting unit, and the third light emitting unit is a green light emitting unit. The material of the polychromatic filter layer comprises a colloid, blue dye and blue dye. The transmittance of the polychromatic filter layer to the light emitted by the second light emitting unit ranges from 60% to 65%, and the transmittance of the polychromatic filter layer to the light emitted by the third light emitting unit ranges from 55% to 60%.

[0018] In some embodiments of the present application, the first filter area further comprises a transparent flat layer arranged in a stack with the monochromatic filter layer, and the second filter area and the third filter area each further comprise a transparent flat layer arranged in a stack with the polychromatic filter layer.

[0019] In some embodiments of the present application, the light regulation layer comprises a first regulation layer and a second regulation layer stacked along a direction away from the substrate, the first regulation layer comprises the monochromatic filter part in the light blocking area and the transparent flat part outside the light blocking area; the second regulation layer comprises the monochromatic filter part in the first filter area and the polychromatic filter part outside the first filter area.

[0020] In some embodiments of the present application, the light regulation layer comprises a first regulation layer and a second regulation layer stacked along a direction away from the substrate, the first regulation layer comprises the polychromatic filter part in the light blocking area and the transparent flat part outside the light blocking area; the second regulation layer comprises the monochromatic filter part in the first filter area and the polychromatic filter part in the second filter area and the third filter area.

[0021] In some embodiments of the present application, the light regulation layer comprises a first regulation layer and a second regulation layer stacked along a direction away from the substrate, the first regulation layer comprises the monochromatic filter part in the light blocking area and the transparent flat part outside the light blocking area; the second regulation layer comprises the monochromatic filter part in the first filter area and the polychromatic filter part in the second filter area and the third filter area.

[0022] In some embodiments of the present application, the first filter area further comprises a transparent flat part stacked with the monochromatic filter part, the second filter area comprises at least two layers of the polychromatic filter part stacked along the substrate thickness direction, and the third filter area comprises two layers of the polychromatic filter part stacked along the substrate thickness direction.

[0023] In some embodiments of the present application, the outer boundary of the light blocking area in the substrate orthographic projection is located within the outer boundary of the pixel defining layer in the substrate, and the distance between the outer boundary of the light blocking area in the substrate orthographic projection and the outer boundary of the pixel defining layer in the substrate is D, 1 μm≤D≤8 μm.

[0024] In some embodiments of the present application, the display panel further comprises a touch layer, the touch layer is located between the light emitting layer and the light regulation layer, the touch layer comprises a metal pattern part, and the light blocking area in the substrate orthographic projection covers the metal pattern part in the substrate orthographic projection.

[0025] In some embodiments of the present application, the touch layer comprises a first metal layer and a second metal layer stacked in a direction away from the substrate, the first metal layer comprises first touch wires, and the second metal layer comprises touch electrodes and second touch wires, and the metal pattern portion comprises the first touch wires, the touch electrodes and the second touch wires.

[0026] The second aspect of the present application further provides a display device comprising any one of the display panels provided by the first aspect of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0027] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a better understanding of the preferred embodiments, and are not to be considered limitations of the present application. Furthermore, like reference numerals refer to like elements throughout the accompanying drawings, which are not drawn to scale. In the drawings:

[0028] Figure 1 is a sectional view of a display panel in the prior art;

[0029] Figure 2 is a structural schematic view of a display panel provided by an embodiment of the present application;

[0030] Figure 3 is Figure 2 is a first sectional view along M-M' in FIG. 1;

[0031] Figure 4 is Figure 2 is a second sectional view along M-M' in FIG. 1;

[0032] Figure 5 is Figure 2 is a third sectional view along M-M' in FIG. 1;

[0033] Figure 6 is Figure 2 is a fourth sectional view along M-M' in FIG. 1;

[0034] Figure 7 is Figure 2 is a fifth sectional view along M-M' in FIG. 1;

[0035] Figure 8 is Figure 2 is a sixth sectional view along M-M' in FIG. 1;

[0036] Figure 9 is Figure 2 is a seventh sectional view along M-M' in FIG. 1;

[0037] Figure 10 is a top view schematic view of a touch layer in a display panel provided by the present application;

[0038] Figure 11 is Figure 2 is a tenth cross-sectional view along M-M' in the middle of the display panel of FIG. 1;

[0039] Figure 12 is Figure 2 is an eleventh cross-sectional view along M-M' in the middle of the display panel of FIG. 1;

[0040] Figure 13 is Figure 2 is a twelfth cross-sectional view along M-M' in the middle of the display panel of FIG. 1;

[0041] Figure 14 is a structural schematic diagram of a display device provided by an embodiment of the present application.

[0042] Reference signs are as follows:

[0043] 01, substrate layer; 02, pixel definition layer; 03, light-emitting functional layer; 031, light-emitting unit; 04, light-blocking module; 05, multi-color filter functional layer; 1, display panel; 11, substrate; 12, pixel definition layer; 121, pixel opening; 13, light-emitting layer; 131, first light-emitting unit; 132, second light-emitting unit; 133, third light-emitting unit; 14, light ray regulation layer; 141, first filter region; 142, second filter region; 143, third filter region; 144, light-blocking region; 145, single-color filter part; 146, multi-color filter part; 147, transparent flat part; 148, first regulation layer; 149, second regulation layer; 140, light-blocking part; 15, touch layer; 151, first metal layer; 152, second metal layer; 153, first touch trace; 154, touch electrode; 1541, first touch electrode; 1542, second touch electrode; 155, second touch trace; 16, first electrode; 17, second electrode; 18, encapsulation layer; 2, display device. DETAILED DESCRIPTION

[0044] Exemplary embodiments of the present disclosure will be described below in greater detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it is to be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the present disclosure to those skilled in the art.

[0045] It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises", "comprising", "includes", "including" and "has" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order in which they are described, unless specifically identified as an order dependent step. It is also to be understood that additional or alternative steps can be employed.

[0046] Although the terms first, second, third, etc. can be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first", "second", and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

[0047] Spatially relative terms, such as "inner", "outer", "inward", "outward", "lower", "bottom", "top", "upper", and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. Such spatially relative terms can encompass different orientations of the device in use or operation, depending on the particular context in which it is used. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0048] It has been found that, as Figure 1As shown in the prior art, the display panel in the prior art includes a substrate layer 01, a black pixel definition layer 02, a light-emitting functional layer 03, a light-blocking functional layer, and a multi-color filter functional layer 05. The pixel definition layer 02 is located on one side of the substrate layer 01 and includes a plurality of openings. The light-emitting functional layer 03 includes a plurality of light-emitting units 031 located in the openings and corresponding to the openings one by one. The light-blocking functional layer is located on the side of the light-emitting functional layer 03 away from the substrate layer 01 and includes a plurality of light-blocking modules 04. The multi-color filter functional layer 05 is located on the side of the light-blocking module 04 away from the substrate layer 01. The multi-color filter functional layer 05 allows light emitted by each light-emitting unit 031 to pass through. The multi-color filter functional layer 05 is purple, thereby causing the display panel to have a color phase deviation problem, which seriously affects the user experience. Therefore, the present application provides a display panel and a display device to improve the display effect and solve the color phase deviation problem.

[0049] As shown in the prior art, Figure 2 and Figure 3 According to an embodiment of the present application, a display panel 1 is provided, which includes a substrate 11, a pixel definition layer 12, a light-emitting layer 13, and a light control layer 14. The pixel definition layer 12 is located on one side of the substrate 11 and includes a plurality of pixel openings 121. The light-emitting layer 13 is located on one side of the substrate 11 and includes a plurality of light-emitting units. The light-emitting units are located in the pixel openings 121 and include first light-emitting units 131, second light-emitting units 132, and third light-emitting units 133. The light control layer 14 is located on the side of the light-emitting layer 13 away from the substrate 11 and includes a plurality of filter regions. The plurality of filter regions include first filter regions 141, second filter regions 142, and third filter regions 143 corresponding to the first light-emitting units 131, the second light-emitting units 132, and the third light-emitting units 133, respectively. The light control layer 14 further includes a light-blocking region 144 located between adjacent two filter regions. The first filter region 141 includes a single-color filter portion 145, which allows light emitted by the first light-emitting unit 131 to pass through. The second filter region 142, the third filter region 143, and the light-blocking region 144 each include a multi-color filter portion 146. The multi-color filter portion 146 has a higher transmittance to light emitted by the second light-emitting unit 132 and the third light-emitting unit 133 than to light emitted by the first light-emitting unit 131. The light-blocking region 144 further includes a single-color filter portion 145 stacked with the multi-color filter portion 146.

[0050] The display panel 1 provided in the present application comprises a substrate 11, a pixel definition layer 12, a light emitting layer 13 and a light regulation layer 14. The pixel definition layer 12 is located on one side of the substrate 11 and comprises a plurality of pixel openings 121. The light emitting layer 13 comprises a plurality of light emitting units, each of which corresponds to a pixel opening 121. The pixel opening 121 is used to define the light emitting unit. The plurality of light emitting units comprises a first light emitting unit 131, a second light emitting unit 132 and a third light emitting unit 133. The light emitting colors of the first light emitting unit 131, the second light emitting unit 132 and the third light emitting unit 133 are different. Specifically, the light emitting color of each light emitting unit can be any one of red, green and blue. The display panel 1 further comprises a light regulation layer 14 located on the side of the light emitting layer 13 away from the substrate 11, which is used to regulate the light emitting effect of the display panel 1. The light regulation layer 14 comprises a first filter area 141, a second filter area 142, a third filter area 143 and a light shielding area 144. The first filter area 141 corresponds to the first light emitting unit 131. The first filter area 141 is located on the side of the first light emitting unit 131 away from the substrate 11 and the orthographic projection of the first light emitting unit 131 on the substrate 11 is located within the orthographic projection of the first filter area 141 on the substrate 11. The second filter area 142 corresponds to the second light emitting unit 132. The second filter area 142 is located on the side of the second light emitting unit 132 away from the substrate 11 and the orthographic projection of the second light emitting unit 132 on the substrate 11 is located within the orthographic projection of the second filter area 142 on the substrate 11. The third filter area 143 corresponds to the third light emitting unit 133. The third filter area 143 is located on the side of the third light emitting unit 133 away from the substrate 11 and the orthographic projection of the third light emitting unit 133 on the substrate 11 is located within the orthographic projection of the third filter area 143 on the substrate 11. The light shielding area 144 is located between any two adjacent filter areas, which is used to improve the problem that the light emitting of adjacent filter areas is prone to mutual crosstalk.

[0051] The display panel 1 provided in the present application, the first filter area 141 includes a single-color filter part 145, the single-color filter part 145 only transmits light of one color, specifically, the single-color filter part 145 allows the light emitted by the first light emitting unit 131 to pass through, and does not allow the light emitted by the second light emitting unit 132 and the third light emitting unit 133 to pass through, so that the light emission purity of the display panel 1 can be improved through the single-color filter part 145, and the reflectivity of the first filter area 141 to light is reduced, thereby improving the display effect. The second filter area 142, the third filter area 143 and the light shielding area 144 all include a multi-color filter part 146, the transmittance of the multi-color filter part 146 to the light emitted by the second light emitting unit 132 and the third light emitting unit 133 is higher than the transmittance to the light emitted by the first light emitting unit 131, that is, a large amount of light emitted by the second light emitting unit 132 and the third light emitting unit 133 can pass through the multi-color filter part 146, and only a small amount of light emitted by the first light emitting unit 131 can pass through the multi-color filter part 146, so that the second filter area 142 can reduce the reflectivity to light of the same color as the light emitted by the first light emitting unit 131, and improve the light emission purity of the display panel 1. The light shielding area 144 also includes a single-color filter part 145 which is stacked with the multi-color filter part 146, the multi-color filter part 146 can intercept the light emitted by the first light emitting unit 131 to a certain extent, and the single-color filter part 145 can intercept the light emitted by the second light emitting unit 132 and the third light emitting unit 133, so that the light shielding area 144 has an intercepting effect on the light emitted by the first light emitting unit 131, the second light emitting unit 132 and the third light emitting unit 133, to improve the problem of light leakage. In the display panel 1, the reflectivity of the display panel 1 to light can be reduced and the purity of light emission can be improved by setting the light control layer 14, thereby improving the display effect. And the light control layer 14 in the present application includes a single-color filter part 145 and a multi-color filter part 146, the single-color filter part 145 is used to filter the light emitted by the first light emitting unit 131, and the multi-color filter part 146 is mainly used to filter the light emitted by the second light emitting unit 132 and the third light emitting unit 133. Compared with the multi-color filter functional layer which has a high transmittance to the light emitted by the first light emitting unit 131, the second light emitting unit 132 and the third light emitting unit 133, the light control layer 14 can improve the display effect of the display panel 1 by respectively designing the parameters of the single-color filter part 145 and the multi-color filter part 146, thereby improving the problem of color phase deviation to purple in the display effect of the display panel 1.

[0052] Specifically, the parameters of the monochrome filter 145 and the multicolor filter 146 can be set according to the actual needs of the display panel 1 and in conjunction with the parameters of other structures within the display panel 1. The parameters of the monochrome filter 145 and the multicolor filter 146 mainly include thickness, transmittance, etc. By using the light control layer 14 provided in this application, the a value range of the hue of the display panel 1 can be -2 to 0, and the b value range can be -3 to 0, thereby effectively improving the problem of the hue of the display panel 1 being purplish.

[0053] Specifically, the size range of the monochromatic filter 145 along the thickness direction of the substrate 11 is 2μm-4μm; the size range of the multicolor filter 146 along the thickness direction of the substrate 11 is 2μm-4μm. The size of the monochromatic filter 145 along the thickness direction of the substrate 11 and the size of the multicolor filter 146 along the thickness direction of the substrate 11 can be the same or different, and the specific size needs to be set according to the actual requirements.

[0054] Specifically, each light-emitting unit can emit any one of red, green, and blue light, with the wavelength range of red light being 580nm-780nm; the wavelength range of green light being 480nm-580nm; and the wavelength range of blue light being 380nm-480nm.

[0055] In one feasible implementation, the transmittance of the multicolor filter 146 to the light emitted by the first light-emitting unit 131 is less than or equal to 20%.

[0056] In the above embodiment, the transmittance of the multicolor filter 146 to the light emitted by the first light-emitting unit 131 is less than or equal to 20%, thereby effectively blocking the light emitted by the first light-emitting unit 131, and thus enabling the light-shielding part to play a better light-shielding role, so as to further improve the light crosstalk problem between adjacent light-emitting units.

[0057] Specifically, the light-shielding area 144 includes a multi-color filter 146 and a monochromatic filter 145 stacked along the thickness direction of the substrate 11. Any one of the red light, green light and blue light can only pass through one of the multi-color filter 146 and the monochromatic filter 145, and cannot pass through the other, thereby achieving the effect of light shielding.

[0058] Specifically, when the specific parameters of different multicolor filter sections 146 are different, the transmittance of the light emitted by the first light-emitting unit 131 by the different multicolor filter sections 146 is different, and when the wavelength of the light emitted by the first light-emitting unit 131 is different, the transmittance of the light emitted by the multicolor filter section 146 to the light emitted by the first light-emitting unit 131 is different. The transmittance of the light emitted by the first light-emitting unit 131 by the multicolor filter section 146 can be: 1%, 3%, 4%, 8%, 9%, 10%, 15%, 16%, 19%, or 20%.

[0059] In one feasible implementation, such as Figure 4 As shown, the first light-emitting unit 131 is a green light-emitting unit, and the material of the monochromatic filter 145 includes colloid and green dye; the second light-emitting unit 132 is a blue light-emitting unit, the third light-emitting unit 133 is a red light-emitting unit, and the material of the multicolor filter 146 includes colloid, red dye and blue dye. The transmittance of the multicolor filter 146 to the light emitted by the second light-emitting unit 132 is in the range of 60%-65%, and the transmittance of the multicolor filter 146 to the light emitted by the third light-emitting unit 133 is in the range of 60%-70%.

[0060] In the above embodiments, when the light emitted by the first light-emitting unit 131 is green, the monochromatic filter 145 is a green filter for filtering green light. The material of the monochromatic filter 145 includes a colloid and a green dye. The monochromatic filter 145 has a high transmittance for green light. Specifically, the transmittance of the monochromatic filter 145 for green light can range from 40% to 70%, thereby reducing the power consumption of the display panel 1. The second light-emitting unit 132 is a blue light-emitting unit for emitting blue light, and the third light-emitting unit 133 is a red light-emitting unit for emitting red light. The material of the multicolor filter 146 includes a colloid, a red dye, and a blue dye. Therefore, the transmittance of the multicolor filter 146 for red and blue light is higher than its transmittance for green light.

[0061] Specifically, the multicolor filter 146 has a transmittance of 60%-65% for light emitted from the second light-emitting unit 132, a transmittance of 60%-70% for light emitted from the third light-emitting unit 133, and a transmittance of less than or equal to 20% for light emitted from the first light-emitting unit 131. Therefore, the multicolor filter 146 has a high transmittance for light emitted from the second and third light-emitting units 132 and a low transmittance for light emitted from the first light-emitting unit 131, thus achieving a light-shielding function when the multicolor filter 146 is stacked with the monochromatic filter 145. Furthermore, the high transmittance of the multicolor filter 146 for light emitted from the second and third light-emitting units 132 further reduces the power consumption of the display panel 1.

[0062] In another feasible implementation, such as Figure 5 As shown, the first light-emitting unit 131 is a blue light-emitting unit, and the material of the monochromatic filter 145 includes colloid and blue dye; the second light-emitting unit 132 is a red light-emitting unit, the third light-emitting unit 133 is a green light-emitting unit, and the material of the multicolor filter 146 includes colloid, red dye and green dye. The transmittance of the multicolor filter 146 to the light emitted by the second light-emitting unit 132 is in the range of 60%-70%, and the transmittance of the multicolor filter 146 to the light emitted by the third light-emitting unit 133 is in the range of 55%-60%.

[0063] In the above embodiments, when the light emitted by the first light-emitting unit 131 is blue, the monochromatic filter 145 is a blue filter for filtering blue light. The material of the monochromatic filter 145 includes a colloid and a blue dye. The monochromatic filter 145 has a high transmittance for blue light; specifically, the transmittance of the monochromatic filter 145 for blue light ranges from 45% to 85%, thereby reducing the power consumption of the display panel 1. The second light-emitting unit 132 is a red light-emitting unit for emitting red light, and the third light-emitting unit 133 is a green light-emitting unit for emitting green light. The material of the multicolor filter 146 includes a colloid, a red dye, and a green dye. Therefore, the multicolor filter 146 has a higher transmittance for red and green light than for blue light.

[0064] Specifically, the multicolor filter 146 has a transmittance of 60%-70% for light emitted from the second light-emitting unit 132, a transmittance of 55%-60% for light emitted from the third light-emitting unit 133, and a transmittance of less than or equal to 20% for light emitted from the first light-emitting unit 131. Therefore, the multicolor filter 146 has a high transmittance for light emitted from the second and third light-emitting units 132 and a low transmittance for light emitted from the first light-emitting unit 131, thus achieving a light-shielding function when the multicolor filter 146 is stacked with the monochromatic filter 145. Furthermore, the high transmittance of the multicolor filter 146 for light emitted from the second and third light-emitting units 132 further reduces the power consumption of the display panel 1.

[0065] In another feasible implementation, such as Figure 5As shown, the first light-emitting unit 131 is a red light-emitting unit, and the material of the monochromatic filter 145 includes colloid and red dye; the second light-emitting unit 132 is a blue light-emitting unit, the third light-emitting unit 133 is a green light-emitting unit, and the material of the multicolor filter 146 includes colloid, blue dye and blue dye. The transmittance of the multicolor filter 146 to the light emitted by the second light-emitting unit 132 is in the range of 60%-65%, and the transmittance of the multicolor filter 146 to the light emitted by the third light-emitting unit 133 is in the range of 55%-60%.

[0066] In the above embodiments, when the light emitted by the first light-emitting unit 131 is red, the monochromatic filter 145 is a red filter for filtering red light. The material of the monochromatic filter 145 includes a colloid and a red dye. The monochromatic filter 145 has a high transmittance for red light; specifically, the transmittance of the monochromatic filter 145 for red light ranges from 45% to 85%, thereby reducing the power consumption of the display panel 1. The second light-emitting unit 132 is a blue light-emitting unit for emitting blue light, and the third light-emitting unit 133 is a green light-emitting unit for emitting green light. The material of the multicolor filter 146 includes a colloid, a blue dye, and a green dye. Therefore, the multicolor filter 146 has a higher transmittance for blue and green light than for red light.

[0067] Specifically, the multicolor filter 146 has a transmittance of 60%-65% for light emitted from the second light-emitting unit 132, a transmittance of 55%-60% for light emitted from the third light-emitting unit 133, and a transmittance of less than or equal to 20% for light emitted from the first light-emitting unit 131. Therefore, the multicolor filter 146 has a high transmittance for light emitted from the second and third light-emitting units 132 and a low transmittance for light emitted from the first light-emitting unit 131, thus achieving a light-shielding function when the multicolor filter 146 is stacked with the monochromatic filter 145. Furthermore, the high transmittance of the multicolor filter 146 for light emitted from the second and third light-emitting units 132 further reduces the power consumption of the display panel 1.

[0068] In one feasible implementation, the colloid may specifically include an acrylic colloid. The color of the red dye may be one of CI Pigment Red, CI Solvent Red, CI Acid Red, CI Direct Red, CI Basic Red, CI Reactive Red, and CI Mordant Red in the internationally recognized Colour Index (CI) system. Specifically, when CI Pigment Red is used, any one of the numbers 48:1, 122, 177, 224, 242, 269, 254, 291, 295, and 296 may be used. The color of the blue dye can be one of the following in the internationally recognized Colour Index (CI): Pigment Blue, Solvent Blue, Acid Blue, Direct Blue, Disperse Blue, Basic Blue, and Mordant Blue. Specifically, when using Pigment Blue, any one of the following numbers can be used: 1, 2, 15, 15:1, 15:2, 15:3, 15:4, 15:6, 16, 22, 29, 60, 64, 66, 79, 80, 87, and 88. The color of the green dye can be one of the following in the internationally recognized Colour Index (CI): Pigment Green, Solvent Green, Acid Green, Direct Green, Basic Green, Mordant Green, and Vapor Green. Specifically, when using CI Pigment Blue, any one of the following numbers can be used: 7, 10, 36, 37, 38, 42, 58, 59, 62, 63, 64, 65, and 66.

[0069] In one feasible implementation, such as Figures 4 to 6 As shown, the first filter region 141 further includes a transparent flat portion 147 stacked with the monochromatic filter portion 145, and the second filter region 142 and the third filter region 143 both include a transparent flat portion 147 stacked with the multicolor filter portion 146.

[0070] In the above embodiment, the step difference between film layers is reduced by providing a transparent flattening portion 147 in the light control layer 14. Specifically, since the light-shielding area 144 includes a multi-color filter portion 146 and a monochromatic filter portion 145 stacked along the thickness direction of the substrate 11, the thickness of the light-shielding area 144 is relatively thick. By providing a transparent flattening portion 147 in the first filter area 141, the second filter area 142, and the third filter area 143, the step difference between the light-shielding area 144 and the first filter area 141, the step difference between the light-shielding area 144 and the second filter area 142, and the step difference between the light-shielding area 144 and the third filter area 143 can be reduced, thereby improving the flatness of the surface of the light control layer 14 facing away from the substrate 11, which helps to improve the yield of subsequent film layer preparation.

[0071] In the above embodiments, the monochromatic filter portion 145 in the first filter region 141 may be located on the side of the transparent flat portion 147 away from the substrate 11, or the monochromatic filter portion 145 in the first filter region 141 may be located on the side of the transparent flat portion 147 close to the substrate 11. The multicolor filter portion 146 in the second filter region 142 may be located on the side of the transparent flat portion 147 away from the substrate 11, or the multicolor filter portion 146 in the second filter region 142 may be located on the side of the transparent flat portion 147 close to the substrate 11. The multicolor filter portion 146 in the third filter region 143 may be located on the side of the transparent flat portion 147 away from the substrate 11, or the multicolor filter portion 146 in the third filter region 143 may be located on the side of the transparent flat portion 147 close to the substrate 11. In the light-shielding area 144, the multicolor filter section 146 may be located on the side of the monochromatic filter section 145 closer to the substrate 11, or the multicolor filter section 146 may be located on the side of the monochromatic filter section 145 away from the substrate 11.

[0072] Specifically, to simplify the fabrication process and reduce the number of masking steps, the light control layer 14 can be fabricated using the following three methods.

[0073] The first implementation method includes: such as Figures 4 to 6 As shown, a transparent planarization layer is first prepared and patterned. The portion of the transparent planarization layer located in the light-blocking area 144 is removed, while the portions located in the first filter area 141, the second filter area 142, and the third filter area 143 are retained to form a transparent planarization portion 147. Then, a monochromatic filter layer is prepared and patterned. The portions of the monochromatic filter layer located in the second filter area 142 and the third filter area 143 are removed, while the portions located in the first filter area 141 and the light-blocking area 144 are retained to form a monochromatic filter portion 145. Next, a multicolor filter layer is formed and patterned. The portion of the multicolor filter layer located in the first filter area 141 is removed, while the portions located in the light-blocking area 144, the second filter area 142, and the third filter area 143 are retained to form a multicolor filter portion 146.

[0074] In this implementation method, such as Figures 4 to 6 As shown, the light control layer 14 includes a first control layer 148 and a second control layer 149 stacked along the direction away from the substrate 11. The first control layer 148 includes a monochromatic filter portion 145 located in the light-shielding area 144 and a transparent flat portion 147 located outside the light-shielding area 144. The second control layer 149 includes a monochromatic filter portion 145 located in the first filter area 141 and a multicolor filter portion 146 located outside the first filter area 141.

[0075] Specifically, in the first filtering region 141, the monochromatic filtering portion 145 is located on the side of the transparent flat portion 147 facing away from the substrate 11; in the light-shielding region 144, the multicolor filtering portion 146 is located on the side of the monochromatic filtering portion 145 facing away from the substrate 11; in the second filtering region 142, the multicolor filtering portion 146 is located on the side of the transparent flat portion 147 facing away from the substrate 11; and in the third filtering region 143, the multicolor filtering portion 146 is located on the side of the transparent flat portion 147 facing away from the substrate 11. The multicolor filtering portion 146 in the second filtering region 142 is integrally formed with the multicolor filtering portion 146 in the adjacent light-shielding region 144, and the multicolor filtering portion 146 in the third filtering region 143 can also be integrally formed with the multicolor filtering portion 146 in the adjacent light-shielding region 144.

[0076] In this embodiment, fewer patterned masks are applied, which simplifies the fabrication process and reduces fabrication costs.

[0077] In the above embodiments, the side surface of the transparent flat portion 147 facing away from the substrate 11 can be flush with the side surface of the monochromatic filter portion 145 facing away from the substrate 11, so as to improve the flatness of the first control layer 148.

[0078] The second implementation method includes: such as Figure 7 As shown, a transparent planarization layer is first prepared and patterned. The portion of the transparent planarization layer located in the light-blocking area 144 is removed, while the portions located in the first filter area 141, the second filter area 142, and the third filter area 143 are retained to form a transparent planarization portion 147. Then, a multicolor filter layer is formed and patterned. The portion of the multicolor filter layer located in the first filter area 141 is removed, while the portions located in the light-blocking area 144, the second filter area 142, and the third filter area 143 are retained to form a multicolor filter portion 146. Next, a monochromatic filter layer is prepared and patterned. The portions of the monochromatic filter layer located in the second filter area 142 and the third filter area 143 are removed, while the portions located in the first filter area 141 and the light-blocking area 144 are retained to form a monochromatic filter portion 145.

[0079] In this implementation method, such as Figure 7 As shown, the light control layer 14 includes a first control layer 148 and a second control layer 149 stacked along the direction away from the substrate 11. The first control layer 148 includes a multicolor filter portion 146 located in the light-shielding area 144 and a transparent flat portion 147 located outside the light-shielding area 144. The second control layer 149 includes a monochromatic filter portion 145 located in the first filter area 141 and the light-shielding area 144 and a multicolor filter portion 146 located in the second filter area 142 and the third filter area 143.

[0080] Specifically, in the first filtering region 141, the monochromatic filter portion 145 is located on the side of the transparent flat portion 147 facing away from the substrate 11; in the light-shielding region 144, the monochromatic filter portion 145 is located on the side of the multicolor filter portion 146 facing away from the substrate 11; in the second filtering region 142, the multicolor filter portion 146 is located on the side of the transparent flat portion 147 facing away from the substrate 11; and in the third filtering region 143, the multicolor filter portion 146 is located on the side of the transparent flat portion 147 facing away from the substrate 11. The monochromatic filter portion 145 in the first filtering region 141 and the monochromatic filter portion 145 in the adjacent light-shielding region 144 can be integrally formed.

[0081] In this embodiment, fewer patterned masking steps are required, thereby simplifying the fabrication process and saving fabrication costs.

[0082] In the above embodiments, the side surface of the transparent flat portion 147 facing away from the substrate 11 can be flush with the side surface of the multicolor filter portion 146 facing away from the substrate 11, so as to improve the flatness of the first control layer 148.

[0083] The third implementation method includes: such as Figure 8 As shown, a monochromatic filter layer is first prepared and patterned. The portions of the monochromatic filter layer located in the second filter region 142 and the third filter region 143 are removed, while the portions of the monochromatic filter layer located in the first filter region 141 and the light-shielding region 144 are retained to form a monochromatic filter portion 145. Then, a transparent planarization layer is prepared and patterned. The portions of the transparent planarization layer located in the light-shielding region 144 are removed, while the portions of the transparent planarization layer located in the first filter region 141, the second filter region 142, and the third filter region 143 are retained to form a transparent planarization portion 147. Next, a multicolor filter layer is formed and patterned. The portions of the multicolor filter layer located in the first filter region 141 are removed, while the portions of the multicolor filter layer located in the light-shielding region 144, the second filter region 142, and the third filter region 143 are retained to form a multicolor filter portion 146.

[0084] In this implementation method, such as Figure 8 As shown, the light control layer 14 includes a first control layer 148 and a second control layer 149 stacked along the direction away from the substrate 11. The first control layer 148 includes a monochromatic filter portion 145 located in the light-shielding area 144 and the first filter area 141, and a transparent planar portion 147 located outside the light-shielding area 144 and the first filter area 141. The second control layer 149 includes a multicolor filter portion 146 located in the second filter area 142, the third filter area 143 and the light-shielding area 144, and a transparent planar portion 147 located in the first filter area 141.

[0085] Specifically, in the first filtering region 141, the transparent flat portion 147 is located on the side of the monochromatic filtering portion 145 facing away from the substrate 11; in the light-shielding region 144, the multicolor filtering portion 146 is located on the side of the monochromatic filtering portion 145 facing away from the substrate 11; in the second filtering region 142, the multicolor filtering portion 146 is located on the side of the transparent flat portion 147 facing away from the substrate 11; and in the third filtering region 143, the multicolor filtering portion 146 is located on the side of the transparent flat portion 147 facing away from the substrate 11. The multicolor filtering portion 146 in the second filtering region 142 is integrally formed with the multicolor filtering portion 146 in the adjacent light-shielding region 144; the multicolor filtering portion 146 in the third filtering region 143 is integrally formed with the multicolor filtering portion 146 in the adjacent light-shielding region 144; and the monochromatic filtering portion 145 in the first filtering region 141 is integrally formed with the monochromatic filtering portion 145 in the adjacent light-shielding region 144.

[0086] In this embodiment, fewer patterned masking steps are required, thereby simplifying the fabrication process and saving fabrication costs.

[0087] In the above embodiments, the transparent flat portion 147 located in the first filter region 141 can be prepared in two separate processes with the transparent flat portions 147 located in the second filter region 142 and the third filter region 143. This results in the transparent flat portion 147 located in the first control layer 148 having the side surface of the first control layer 148 facing away from the substrate 11 flush with the side surface of the monochromatic light-transmitting portion facing away from the substrate 11 during preparation. Furthermore, the thickness of the transparent flat portion 147 located in the second control layer 149 is the same as the thickness of the multicolor filter portion 146, thereby improving the uniformity of the film thickness of the light control layer 14.

[0088] In one feasible implementation, such as Figure 9 As shown, the first filter region 141 further includes a transparent flat portion 147 stacked with the monochromatic filter portion 145, the second filter region 142 includes at least two layers of multicolor filter portions 146 stacked along the thickness direction of the substrate 11, and the third filter region 143 includes two layers of multicolor filter portions 146 stacked along the thickness direction of the substrate 11.

[0089] In the above embodiments, the first filtering region 141 further includes a transparent flat portion 147 stacked with the monochromatic filtering portion 145 to reduce the thickness difference between the first filtering region 141 and the light-shielding region 144. The second filtering region 142 includes at least two layers of multicolor filtering portions 146 stacked along the thickness direction of the substrate 11, and the third filtering region 143 includes two layers of multicolor filtering portions 146 stacked along the thickness direction of the substrate 11 to reduce the difference between the second filtering region 142 and the light-shielding region 144, as well as the difference between the third filtering region 143 and the light-shielding region 144.

[0090] In the above embodiments, by providing multiple layers of multi-color filter portions 146 in the second and third filter layers respectively, the thickness range of the multi-color filter portions 146 can be increased, thereby further enhancing the ability to control light.

[0091] In one feasible implementation, such as Figure 8 and Figure 9 As shown, the outer boundary of the orthographic projection of the light-shielding area 144 on the substrate 11 is located within the outer boundary of the pixel limiting layer 12 on the substrate 11, and the distance between the outer boundary of the orthographic projection of the light-shielding area 144 on the substrate 11 and the outer boundary of the pixel limiting layer 12 on the substrate 11 is D, where 1μm≤D≤8μm.

[0092] In the above embodiment, the outer boundary of the orthogonal projection of the light-shielding area 144 on the substrate 11 is located within the outer boundary of the pixel limiting layer 12 on the substrate 11. That is, the orthogonal projection of the light-shielding area 144 on the substrate 11 is located within the orthogonal projection of the pixel limiting layer 12 on the substrate 11, and the outer boundary of the orthogonal projection of the light-shielding area 144 on the substrate 11 does not coincide with the outer boundary of the orthogonal projection of the pixel limiting layer 12 on the substrate 11. This avoids the light-shielding area 144 from blocking the pixel opening 121 and affecting the light-emitting area of ​​the light-emitting unit.

[0093] Specifically, the distance between the outer boundary of the orthogonal projection of the light-shielding area 144 on the substrate 11 and the outer boundary of the pixel limiting layer 12 on the substrate 11 is D, where 1μm≤D≤8μm. Due to limitations in fabrication process precision, the value of D fluctuates within the range of 1μm-8μm. D can specifically be 1μm, 2μm, 3μm, 4μm, 5μm, 6μm, 7μm, or 8μm.

[0094] In one feasible implementation, such as Figure 8 , Figure 9 As shown, the display panel 1 also includes a touch layer 15, which is located between the light-emitting layer 13 and the light-regulating layer 14. The touch layer 15 includes a metal pattern portion, and the orthographic projection of the light-shielding area 144 on the substrate 11 covers the orthographic projection of the metal pattern portion on the substrate 11.

[0095] In the above embodiment, the display panel 1 is a touch display panel 1, and the touch layer 15 is located between the light-emitting layer 13 and the light-regulating layer 14. The light-shielding area 144 in the light-regulating layer 14 blocks the metal pattern part in the touch layer 15, thereby reducing the probability of light shining on the metal pattern part being reflected, that is, reducing the reflectivity of the touch layer 15 and the display panel 1, thereby improving the performance of the display panel 1.

[0096] Specifically, when the display panel 1 is in a dark state, in order to ensure the dark state effect, it is necessary to reduce the reflectivity of the display panel 1 to external light. By blocking the metal pattern part through the blocking area, the probability of external light shining on the metal pattern part can be reduced, thereby reducing the reflectivity of the display panel 1.

[0097] In one feasible implementation, such as Figure 8 , Figure 9 and Figure 10 As shown, the touch layer 15 includes a first metal layer 151 and a second metal layer 152 stacked along the direction away from the substrate 11. The first metal layer 151 includes a first touch trace 153, and the second metal layer 152 includes a touch electrode 154 and a second touch trace 155. The metal pattern portion includes the first touch trace 153, the touch electrode 154, and the second touch trace 155.

[0098] In the above embodiment, the touch layer 15 includes a first metal layer 151 and a second metal layer 152. The first metal layer 151 and the second metal layer 152 have high reflectivity to light, which can easily reflect light and affect the display effect of the display panel 1. The touch electrode 154 includes an array of first touch electrodes 1541 and second touch electrodes 1542. Adjacent first touch electrodes 1541 along the column direction are connected by first touch traces 153 extending along the column direction, and adjacent second touch electrodes 1542 along the row direction are connected by second touch traces 155 extending along the row direction.

[0099] Specifically, both the first touch electrode 1541 and the second touch electrode 1542 have a mesh structure. The mesh structure includes a solid metal portion and a hollow portion formed by the solid metal portion. The orthographic projection of the mesh structure on the substrate 11 includes the orthographic projection of the solid metal portion on the substrate 11. The orthographic projection of the metal pattern portion on the substrate 11 being located within the orthographic projection of the light-shielding area 144 on the substrate 11 includes: the orthographic projection of the solid metal portion on the substrate 11 being located within the orthographic projection of the light-shielding area 144 on the substrate 11; the orthographic projection of the first touch trace 153 on the substrate 11 being located within the orthographic projection of the light-shielding area 144 on the substrate 11; and the orthographic projection of the second touch trace 155 on the substrate 11 being located within the orthographic projection of the light-shielding area 144 on the substrate 11.

[0100] In the above embodiment, by setting the orthographic projection of the metal pattern portion on the substrate 11 within the orthographic projection of the light-shielding area 144 on the substrate 11, the light-shielding area 144 can effectively block external light incident into the display panel 1 from continuing to incident on the metal pattern portion, thereby reducing the reflectivity of the metal pattern portion to light.

[0101] Specifically, the portion of the light-shielding layer located in the first control layer 148 can directly contact the side surface of the touch layer 15 facing away from the substrate 11, thereby further reducing the probability of light incident on the metal pattern portion.

[0102] In one feasible implementation, such as Figures 3 to 9 As shown, the display panel 1 includes a plurality of first electrodes 16 located on the surface of the substrate 11 facing the light-emitting layer 13, with the plurality of first electrodes 16 arranged at intervals. The display panel 1 also includes a second electrode 17 and an encapsulation layer 18 sequentially disposed on the side of the light-emitting layer 13 facing away from the substrate 11. The encapsulation layer 18 may include a first encapsulation layer, a second encapsulation layer, and a third encapsulation layer stacked along a direction away from the substrate 11. The first and third encapsulation layers may be made of inorganic materials, which have good water and oxygen barrier properties and can provide good encapsulation. The second encapsulation layer may be made of organic materials, which have high fluidity and can provide good planarization.

[0103] In one feasible implementation, such as Figures 3 to 9 As shown, the pixel-limiting layer 12 is made of black organic material.

[0104] In one feasible implementation, such as Figure 11 As shown, in order to improve the problem of the hue of the display panel 1 being purplish, the color of the pixel limiting layer 12 can also be changed. A green pixel limiting layer 12 can be formed using a green organic material, thereby increasing the reflectivity of the display panel 1 to green to neutralize the purple, thus improving the final hue of the display panel 1.

[0105] In one feasible implementation, such as Figure 12 As shown, the display panel 1 includes a substrate 11, a pixel defining layer 12, a light-emitting layer 13, and a light-regulating layer 14. The pixel defining layer 12 is located on one side of the substrate 11 and includes multiple pixel openings 121. The light-emitting layer 13 is located on one side of the substrate 11 and includes multiple light-emitting units located within the pixel openings 121. The multiple light-emitting units include a first light-emitting unit 131, a second light-emitting unit 132, and a third light-emitting unit 133. The light-regulating layer 14 is located on the side of the light-emitting layer 13 facing away from the substrate 11 and includes a light-shielding portion 140 and a multi-color filter portion 146. The orthographic projection of the light-shielding portion 140 onto the substrate 11 lies within the orthographic projection of the pixel defining layer 12 onto the substrate 11. The multi-color filter portion 146 corresponds to the light-emitting units and allows light emitted from the first light-emitting unit 131, the second light-emitting unit 132, and the third light-emitting unit 133 to pass through. The pixel defining layer 12 is made of a green material.

[0106] Specifically, the light control layer 14 includes multiple filter areas, including a first filter area 141, a second filter area 142, and a third filter area 143 corresponding to the first light-emitting unit 131, the second light-emitting unit 132, and the third light-emitting unit 133, respectively. Each of the first filter area 141, the second filter area 142, and the third filter area 143 is provided with the aforementioned multi-color filter portion 146. The light control layer 14 also includes a light-shielding area 144 located between two adjacent filter areas, with a light-shielding portion 140 located within the light-shielding area 144. The light-shielding area 144 may also include the aforementioned multi-color filter portion 146, which may be located on the side of the light-shielding portion 140 facing away from the substrate 11. The material of the multi-color filter portion 146 may include organic adhesive and red dye, green dye, and blue dye; the organic adhesive may include acrylic colloid.

[0107] Specifically, since the organic adhesive has strong fluidity, the multi-color filter 146 can be fabricated after the light-shielding part 140 is fabricated, thereby increasing the strength of the side surface of the light control layer 14 facing away from the substrate 11.

[0108] In one feasible implementation, such as Figure 12 and Figure 13 As shown, the material of the light-shielding part 140 can be a black organic material or a green organic material.

[0109] Specifically, such as Figure 13 As shown, when the material of the light-shielding part 140 is a green organic material, the pixel limiting layer 12 can be made of a black material, specifically a black organic material. In this case, the green light-shielding part 140 can increase the reflectivity of the display panel 1 to green to neutralize the purple, thereby improving the final hue of the display panel 1.

[0110] This application also provides a display device 2, such as... Figure 14 As shown, it includes any of the display panels 1 provided in the above embodiments.

[0111] Since the display device 2 provided in this application includes any of the display panels 1 provided in the above embodiments, the display device 2 provided in this application has the beneficial effects of any of the display panels 1 provided in the above embodiments, which will not be repeated here.

[0112] The display device 2 in this application embodiment includes, but is not limited to, mobile phones, personal digital assistants (PDAs), tablet computers, e-books, televisions, access control systems, smart landline phones, control consoles, and other devices with display functions.

[0113] The above are merely preferred embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A display panel, characterized by, The application relates to a display panel, comprising: a substrate; a pixel definition layer located on one side of the substrate and comprising a plurality of pixel openings; a light emitting layer located on one side of the substrate and comprising a plurality of light emitting units, the light emitting units being located in the pixel openings, and the plurality of light emitting units comprising first, second and third light emitting units; a light ray regulation layer located on the side of the light emitting layer away from the substrate and comprising a plurality of light filtering areas, the plurality of light filtering areas comprising first, second and third light filtering areas corresponding to the first, second and third light emitting units respectively, and the light ray regulation layer further comprising a light shielding area located between two adjacent light filtering areas, wherein the first light filtering area comprises a single-color light filtering part, and the single-color light filtering part allows light emitted by the first light emitting unit to pass through; the second, third light filtering areas and the light shielding area each comprise a multi-color light filtering part, and the multi-color light filtering part has a higher transmittance to light emitted by the second and third light emitting units than to light emitted by the first light emitting unit; the light shielding area further comprises a single-color light filtering part stacked with the multi-color light filtering part.

2. The display panel of claim 1, wherein, The transmittance of the multi-color light filtering part to light emitted by the first light emitting unit is less than or equal to 20%.

3. The display panel of claim 1, wherein, The first light emitting unit is a green light emitting unit, the material of the single-color light filtering part comprises a colloid and green dye; the second light emitting unit is a blue light emitting unit, the third light emitting unit is a red light emitting unit, the material of the multi-color light filtering part comprises a colloid, red dye and blue dye, the transmittance of the multi-color light filtering part to light emitted by the second light emitting unit ranges from 60% to 65%, and the transmittance of the multi-color light filtering part to light emitted by the third light emitting unit ranges from 60% to 70%; or The first light emitting unit is a blue light emitting unit, the material of the single-color light filtering part comprises a colloid and blue dye; the second light emitting unit is a red light emitting unit, the third light emitting unit is a green light emitting unit, the material of the multi-color light filtering part comprises a colloid, red dye and green dye, the transmittance of the multi-color light filtering part to light emitted by the second light emitting unit ranges from 60% to 70%, and the transmittance of the multi-color light filtering part to light emitted by the third light emitting unit ranges from 55% to 60%. The first light emitting unit is a red light emitting unit, the material of the single-color light filtering part comprises a colloid and red dye; the second light emitting unit is a blue light emitting unit, the third light emitting unit is a green light emitting unit, the material of the multi-color light filtering part comprises a colloid, blue dye and blue dye, the transmittance of the multi-color light filtering part to light emitted by the second light emitting unit ranges from 60% to 65%, and the transmittance of the multi-color light filtering part to light emitted by the third light emitting unit ranges from 55% to 60%.

4. The display panel of claim 1, wherein, The first light filtering area further comprises a transparent flat part stacked with the single-color light filtering part, and the second and third light filtering areas each further comprise a transparent flat part stacked with the multi-color light filtering part.

5. The display panel of claim 4, wherein, The light regulation layer comprises a first regulation layer and a second regulation layer stacked in a direction away from the substrate, the first regulation layer comprises the monochromatic filter part in the light shielding area and the transparent flat part outside the light shielding area; the second regulation layer comprises the monochromatic filter part in the first filter area and the polychromatic filter part outside the first filter area.

6. The display panel of claim 4, wherein, The light regulation layer comprises a first regulation layer and a second regulation layer stacked in a direction away from the substrate, the first regulation layer comprises the polychromatic filter part in the light shielding area and the transparent flat part outside the light shielding area; the second regulation layer comprises the monochromatic filter part in the first filter area and the polychromatic filter part in the second filter area and the third filter area.

7. The display panel of claim 4, wherein, The light regulation layer comprises a first regulation layer and a second regulation layer stacked in a direction away from the substrate, the first regulation layer comprises the monochromatic filter part in the light shielding area and the transparent flat part outside the light shielding area; the second regulation layer comprises the monochromatic filter part in the first filter area and the polychromatic filter part in the second filter area and the third filter area.

8. The display panel of claim 1, wherein, The first filter area further comprises a transparent flat part stacked with the monochromatic filter part, the second filter area comprises at least two layers of the polychromatic filter part stacked in a direction of the substrate thickness, and the third filter area comprises two layers of the polychromatic filter part stacked in the direction of the substrate thickness.

9. The display panel of claim 1, wherein, An outer boundary of a normal projection of the light shielding area on the substrate is located within an outer boundary of the pixel defining layer on the substrate, and a distance between the outer boundary of the normal projection of the light shielding area on the substrate and the outer boundary of the pixel defining layer on the substrate is D, 1 μm≤D≤8 μm.

10. The display panel of claim 1, wherein, The display panel further comprises a touch layer between the light emitting layer and the light regulation layer, the touch layer comprises a metal pattern part, and a normal projection of the light shielding area on the substrate covers a normal projection of the metal pattern part on the substrate.

11. The display panel of claim 10, wherein, The touch layer comprises a first metal layer and a second metal layer stacked in a direction away from the substrate, the first metal layer comprises a first touch trace, and the second metal layer comprises a touch electrode and a second touch trace, and the metal pattern part comprises the first touch trace, the touch electrode and the second touch trace.

12. A display device, characterized by comprising: The display panel comprises any one of claims 1-11. The display panel comprises any one of claims 1-11.

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