CN115207068A - Display panel, manufacturing method of display panel and display device - Google Patents

Display panel, manufacturing method of display panel and display device Download PDF

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Publication number
CN115207068A
CN115207068A CN202210869096.XA CN202210869096A CN115207068A CN 115207068 A CN115207068 A CN 115207068A CN 202210869096 A CN202210869096 A CN 202210869096A CN 115207068 A CN115207068 A CN 115207068A
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Prior art keywords
color
block
light
pixel
display panel
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吴柏贤
于天成
孔超
张如芹
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BOE Technology Group Co Ltd
Chengdu BOE Optoelectronics Technology Co Ltd
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BOE Technology Group Co Ltd
Chengdu BOE Optoelectronics Technology Co Ltd
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Priority to CN202210869096.XA priority Critical patent/CN115207068A/en
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    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/30Devices specially adapted for multicolour light emission
    • H10K59/38Devices specially adapted for multicolour light emission comprising colour filters or colour changing media [CCM]
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00Organic light-emitting devices
    • H10K50/80Constructional details
    • H10K50/86Arrangements for improving contrast, e.g. preventing reflection of ambient light
    • H10K50/865Arrangements for improving contrast, e.g. preventing reflection of ambient light comprising light absorbing layers, e.g. light-blocking layers
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K71/00Manufacture or treatment specially adapted for the organic devices covered by this subclass

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  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

The embodiment of the application provides a display panel, which comprises a substrate and a plurality of pixel units positioned on one side of the substrate, wherein each pixel unit comprises a plurality of pixels; the display panel also comprises an encapsulation layer, a color film substrate and a plurality of shading blocks, wherein the encapsulation layer is positioned on one side of the plurality of pixel units far away from the substrate and covers the plurality of pixel units; the color film substrate is positioned on one side, away from the substrate, of the packaging layer and comprises a black matrix layer and a color film layer, the black matrix layer comprises a plurality of first hollow areas which are arranged at intervals, the color film layer comprises a plurality of color resist blocks, the plurality of color resist blocks are filled in the plurality of hollow areas and are arranged corresponding to a plurality of pixels of a plurality of pixel units, and the color resist block corresponding to at least one pixel of each pixel unit comprises a plurality of second hollow areas; the plurality of light shielding blocks fill the plurality of second hollow areas. The display panel that this application embodiment provided can realize that after ambient light shines to display panel, the control and the adjustment of the surperficial colour of display panel.

Description

Display panel, manufacturing method of display panel and display device
Technical Field
The present disclosure relates to the field of display technologies, and in particular, to a display panel, a method for manufacturing the display panel, and a display device.
Background
Because of the advantages of lightness, thinness, high brightness, low power consumption, fast response, high definition, good flexibility, high luminous efficiency and the like, the OLED (Organic Light-Emitting Diode) display panel is widely applied to display devices such as mobile phones, computers, wearable equipment and the like.
In order to reduce the reflectivity of the ambient light irradiated to the OLED display panel, a polarizer is often added to the OLED display panel, and the polarizer may cause the display brightness of the OLED display panel to be greatly reduced (by about 58%). In order to solve the above problems, in the related art, a Color On Encapsulation Layer (COE) structure is used to replace the polarizer, where the COE structure includes a Color film Layer disposed On an Encapsulation Layer of the display panel, and the Color film Layer includes a plurality of Color blocks, such as a plurality of red Color blocks, a plurality of blue Color blocks, and a plurality of green Color blocks. After entering the OLED display panel, ambient light is reflected by the structures in the OLED display panel, and diffraction phenomenon occurs when the reflected light passes through the plurality of color blocking blocks. And because the light intensity of the diffracted light of the reflected light at the color resistance blocks with different colors may have difference, the diffracted reflected light presents different colors on the surface of the OLED display panel, so that the color presented on the surface of the OLED display panel is difficult to control.
Disclosure of Invention
An object of the present invention is to provide a display panel, a method for manufacturing the display panel, and a display device, so as to control and adjust a color of a surface of the display panel after ambient light is irradiated onto the display panel. The specific technical scheme is as follows:
embodiments of a first aspect of the present application provide a display panel, where the display panel includes a substrate and a plurality of pixel units located on one side of the substrate, where each pixel unit includes a plurality of pixels; the display panel further comprises an encapsulation layer, a color film substrate and a plurality of shading blocks, wherein the encapsulation layer is positioned on one side of the plurality of pixel units far away from the substrate and covers the plurality of pixel units; the color film substrate is positioned on one side, away from the substrate, of the packaging layer, and comprises a black matrix layer and a color film layer, the black matrix layer comprises a plurality of first hollow areas which are arranged at intervals, the color film layer comprises a plurality of color resistance blocks, the plurality of color resistance blocks are filled in the plurality of first hollow areas and are arranged corresponding to a plurality of pixels included in the plurality of pixel units, and the color resistance block corresponding to at least one pixel included in the pixel unit comprises a plurality of second hollow areas; the plurality of light shielding blocks fill the plurality of second hollow areas.
In some embodiments, the plurality of light shielding blocks are fabricated in the same layer as the black matrix layer.
In some embodiments, the pixel unit includes a first pixel and a second pixel, and the color film layer includes a first color block corresponding to the first pixel and a second color block corresponding to the second pixel; along the long side direction and/or the broadside direction of substrate base plate, the size of first look hinders the piece and is greater than the size of second look hinders the piece, first look hinders the piece including the interval a plurality of second hollow area.
In some embodiments, the pixel unit includes a third pixel, and the color film layer includes a third color block disposed corresponding to the third pixel; and in the long side direction and/or the wide side direction of the substrate base plate, the size of the second color blocking block is larger than that of the third color blocking block, and the second color blocking block comprises a plurality of second hollow areas which are arranged at intervals.
In some embodiments, the third color block includes the plurality of second hollow areas arranged at intervals, and the number of the plurality of second hollow areas in the third color block is smaller than the number of the plurality of second hollow areas in the second color block, the first color block is a blue color block, the second color block is a green color block, and the third color block is a red color block.
In some embodiments, the first color block is rectangular, the size of the first color block is larger than the sizes of the second color block and the third color block along the long side direction of the first color block, the first color block includes a first end region, a middle region and a second end region along the long side direction of the first color block, the number of the light-shielding blocks in the first end region is larger than the number of the light-shielding blocks in the middle region, and the number of the light-shielding blocks in the second end region is larger than the number of the light-shielding blocks in the middle region.
In some embodiments, the pixel unit includes a first pixel and a second pixel, the color film layer includes a first color block corresponding to the first pixel, and a second color block corresponding to the second pixel, a wavelength of a first light emitted from the first color block is greater than a wavelength of a second light emitted from the second color block, and the second color block includes a plurality of second hollow regions arranged at intervals.
An embodiment of a second aspect of the present application provides a method for manufacturing a display panel, including:
providing a substrate base plate;
forming a plurality of pixel units on one side of the substrate, wherein each pixel unit comprises a plurality of pixels;
forming an encapsulation layer on one side of the pixel units far away from the substrate, wherein the encapsulation layer covers the pixel units;
a color film substrate and a plurality of shading blocks are formed on one side, away from the substrate, of the packaging layer, the color film substrate comprises a black matrix layer and a color film layer, the black matrix layer comprises a plurality of first hollow areas which are arranged at intervals, the color film layer comprises a plurality of color blocking blocks, the plurality of color blocking blocks are filled in the plurality of first hollow areas and are arranged corresponding to a plurality of pixels included in the plurality of pixel units, the color blocking block corresponding to at least one pixel included in the pixel units comprises a plurality of second hollow areas, and the plurality of shading blocks are filled in the plurality of second hollow areas.
In some embodiments, the step of forming a color filter substrate and a plurality of light shielding blocks on a side of the encapsulation layer away from the substrate includes:
forming a black matrix layer on one side of the packaging layer far away from the substrate base plate;
providing a first mask, and carrying out patterning treatment on the black matrix layer through the first mask to form a plurality of first hollow areas and a plurality of shading blocks positioned in the first hollow areas;
and forming a color film layer on one side of the substrate, wherein the color film layer comprises a plurality of color resistance blocks, the plurality of color resistance blocks fill the plurality of first hollow areas, and the color film substrate comprises the black matrix layer and the color film layer.
Embodiments of a third aspect of the present application provide a display device comprising a display panel as described in any one of the above.
The embodiment of the application has the following beneficial effects:
in the display panel provided in the embodiment of the present application, the display panel includes a substrate, a pixel unit, an encapsulation layer, a color film substrate, and a light shielding block. The color film substrate comprises a black matrix layer and a color film layer, the black matrix layer comprises a plurality of first hollow areas which are arranged at intervals, the color film layer comprises a plurality of color resistance blocks, and the plurality of color resistance blocks are filled in the plurality of first hollow areas and are arranged corresponding to a plurality of pixels which are included by a plurality of pixel units. When reflected light generated by reflection of ambient light by the internal structure of the display panel reaches the color resist blocks, the reflected light is diffracted at the color resist blocks due to shielding of the black matrix layer. Fill a plurality of shading blocks in the color resistance piece that at least one pixel corresponds, can adjust the size of printing opacity district in the color resistance piece, thereby adjustment reverberation is in the diffraction scope of the color resistance piece department that is provided with the shading block, and then the adjustment reverberation is at the light intensity of the diffraction light of the color resistance piece department that is provided with the shading block, can adjust the difference of the light intensity of the diffraction light of reverberation at the color resistance piece department of different colours and size, realize the adjustment to the light intensity of the diffraction light after the reverberation diffracts via different color resistance pieces, thereby make the surface of display panel present required colour, like white, yellow or colour etc., realize after ambient light shines to the display panel, the control and the adjustment of the colour on display panel surface.
Of course, it is not necessary for any product or method of the present application to achieve all of the above-described advantages at the same time. The foregoing description is only an overview of the technical solutions of the present application, and the present application can be implemented according to the content of the description in order to make the technical means of the present application more clearly understood, and the following detailed description of the present application is given in order to make the above and other objects, features, and advantages of the present application more clearly understandable.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other embodiments can be obtained by using the drawings without creative efforts.
FIG. 1 is a diagram showing the intensity of diffracted light of reflected light in the related art;
FIG. 2 is an enlarged view of area A of FIG. 1;
FIG. 3 is a schematic view of a display panel according to some embodiments of the present application;
FIG. 4 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 1;
FIG. 5 is a schematic view of a display panel according to some embodiments of the present application;
FIG. 6 is a schematic view of another embodiment of a display panel;
FIG. 7 is a schematic view of another embodiment of a display panel;
FIG. 8 is another cross-sectional view taken along line A-A of FIG. 1;
FIG. 9 isbase:Sub>A further sectional view taken along line A-A of FIG. 1;
fig. 10 is a flowchart of a method for manufacturing a display panel according to some embodiments of the present disclosure.
Reference numerals are as follows: 100-display panel, 10-pixel unit, 1-substrate, 2-transistor, 201-active layer, 202-first gate insulation layer, 203-gate metal layer, 2031-gate, 204-second gate insulation layer, 205-interlayer dielectric layer, 206-source drain metal layer, 2061-source electrode, 2062-drain electrode, 207-passivation layer, 208-planarization layer, 3-light emitting unit, 301-anode layer, 302-organic light emitting layer, 303-cathode layer, 3001-blue light emitting unit, 3002-green light emitting unit, 3003-red light emitting unit, 4-pixel defining layer, 5-packaging layer, 6-color film substrate, 61-black matrix layer, 610-first hollow area, 62-color film layer, 620-color block, 621-first color block, 6201-first end area, 6202-middle area, 6203-second end area, 6211-second middle area, 622-second color block, tricolor block, 7-third color block, 7-light blocking block, 8-liquid crystal layer.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are merely used to more clearly illustrate the technical solutions of the present application, and therefore are only examples, and the protection scope of the present application is not limited thereby.
Unless defined otherwise, 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 is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof in the description and claims of this application and the description of the figures above, are intended to cover non-exclusive inclusions.
In the description of the embodiments of the present application, the technical terms "first", "second", and the like are used only for distinguishing different objects, and are not to be construed as indicating or implying relative importance or to implicitly indicate the number, specific order, or primary-secondary relationship of the technical features indicated. In the description of the embodiments of the present application, "a plurality" means two or more unless specifically defined otherwise.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein may be combined with other embodiments.
In the description of the embodiments of the present application, the term "and/or" is only one kind of association relationship describing an associated object, and means that three relationships may exist, for example, a and/or B, and may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
In the description of the embodiments of the present application, the term "plurality" refers to two or more (including two), and similarly, "plural sets" refers to two or more (including two), and "plural pieces" refers to two or more (including two).
In the description of the embodiments of the present application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations and positional relationships that are based on the orientations and positional relationships shown in the drawings, and are used only for convenience in describing the embodiments of the present application and for simplicity in description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the embodiments of the present application.
In the description of the embodiments of the present application, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrated; mechanical connection or electrical connection is also possible; either directly or indirectly through intervening media, either internally or in any other relationship. Specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.
It is noted that in the drawings, the sizes of layers and regions may be exaggerated for clarity of illustration. Also, it will be understood that when an element or layer is referred to as being "on" another element or layer, it can be directly on the other element or layer or intervening layers may also be present. In addition, it will be understood that when an element or layer is referred to as being "under" another element or layer, it can be directly under the other element or intervening layers or elements may also be present. In addition, it will also be understood that when a layer or element is referred to as being "between" two layers or elements, it can be the only layer between the two layers or elements, or more than one intermediate layer or element may also be present. Like reference numerals refer to like elements throughout.
In the related art, a Color Filter On Encapsulation Layer (COE) structure is adopted to replace a polarizer, so that the display brightness of the OLED display panel is improved. The COE structure comprises a color film layer arranged on a display panel packaging layer, wherein the color film layer comprises a plurality of color blocking blocks, such as a plurality of red color blocking blocks, a plurality of blue color blocking blocks and a plurality of green color blocking blocks. After entering the OLED display panel, ambient light is reflected by structures such as pixel units in the display panel to generate reflected light, and the reflected light is emitted through the plurality of light-transmitting color resistance blocks after passing through the packaging layer. Due to the large thickness of the packaging layer, diffraction phenomena can occur when reflected light passes through a plurality of color blocks in the transmission process. The color resistance blocks have different sizes and colors, so that reflected light emitted by the color resistance blocks also has different colors, and the light intensity of the diffracted light of the reflected light at the color resistance blocks with different colors may have difference, so that the diffracted reflected light presents different colors on the surface of the OLED display panel, and the color presented on the surface of the OLED display panel is difficult to control.
For example, as shown in fig. 1 and 2, fig. 1 and 2 are graphs showing the change of the diffracted light intensity after the reflected light is diffracted by the blue color block, the green color block and the red color block. The X axis represents the radius corresponding to the diffraction position of the reflected light by taking the center of the display panel as an original point, the Y axis represents the light intensity of the relative diffraction light, the dotted line represents the light intensity change curve of the blue light generated after the reflected light is diffracted by the blue color block, the dotted line represents the light intensity change curve of the green light generated after the reflected light is diffracted by the green color block, and the solid line represents the light intensity change curve of the red light generated after the reflected light is diffracted by the red color block. As can be seen from fig. 1 and 2, the light intensity of the blue light decays most rapidly, and the light intensity of the red light decays most slowly. And the light intensity of each color of light is different at a specific position of the display panel. For example, at a radius of 0.6cm from the center of the display panel, the intensity of the blue light is less than that of the red light, and the intensity of the blue light is greater than that of the green light, so that the light at the position is fused to generate the purple light. The light intensity of the light rays with different colors at different positions is different, so that the light with different colors is generated at different positions of the display panel, and the color presented on the surface of the display panel is difficult to control.
In order to control and adjust the color of the surface of the display panel after the ambient light is irradiated to the display panel, embodiments of the present application provide a display panel, a manufacturing method of the display panel, and a display device. The Display panel may be an LCD (Liquid Crystal Display), an electroluminescent Display panel, or a photoluminescent Display panel. In the case where the display panel is an electroluminescent display panel, the electroluminescent display panel may be an OLED (Organic Light-Emitting Diode) or a QLED (Quantum Dot Light-Emitting Diode). In case the display panel is a photoluminescent display panel, the photoluminescent display panel may be a quantum dot photoluminescent display panel.
An embodiment of the first aspect of the present application provides a display panel 100, as shown in fig. 3, fig. 4 and fig. 5, the display panel 100 includes a substrate 1 and a plurality of pixel units 10 located on one side of the substrate 1, where the pixel units 10 include a plurality of pixels; the display panel 100 further includes an encapsulation layer 5, a color filter substrate 6 and a plurality of light shielding blocks 7, wherein the encapsulation layer 5 is located on one side of the plurality of pixel units 10 away from the substrate 1 and covers the plurality of pixel units 10; the color filter substrate 6 is located on one side of the encapsulation layer 5, which is far away from the substrate 1, the color filter substrate 6 includes a black matrix layer 61 and a color filter layer 62, the black matrix layer 61 includes a plurality of first hollow regions 610 arranged at intervals, the color filter layer 62 includes a plurality of color resist blocks 620, the plurality of color resist blocks 620 are filled in the plurality of first hollow regions 610 and arranged corresponding to a plurality of pixels included in the plurality of pixel units 10, and the color resist block 620 corresponding to at least one pixel included in the pixel unit 10 includes a plurality of second hollow regions 6211 arranged at intervals; the plurality of light shielding blocks 7 fill the plurality of second hollow regions 6211.
In the embodiment of the present application, as shown in fig. 4, the encapsulation layer 5 is disposed above the plurality of pixel units 10 and covers the plurality of pixel units 10, so as to encapsulate the lower pixel units 10 and other structures, thereby reducing the probability of failure of the plurality of pixel units 10 due to impurities such as water and oxygen entering the pixel units 10. Optionally, the encapsulation layer 5 may be a thin film encapsulation layer, and the material of the encapsulation layer 5 includes silicon oxide, silicon oxynitride, silicon nitride, and the like. Optionally, the encapsulation layer 5 may have a multilayer structure, and when the encapsulation layer 5 has a multilayer structure, the encapsulation layer 5 may include two inorganic encapsulation layers and an organic encapsulation layer or a metal layer located in the two inorganic encapsulation layers, so as to further improve the encapsulation effect of the encapsulation layer 5.
In this embodiment, as shown in fig. 4, the color filter substrate 6 is located above the encapsulation layer 5, the color filter substrate 6 includes a black matrix layer 61 and a color filter layer 62, the black matrix layer 61 includes a plurality of first hollow areas 610 arranged at intervals, and the plurality of first hollow areas 610 are used for accommodating a plurality of color resist blocks 620. The other regions of the black matrix layer 61 except for the plurality of first hollow regions 610 may be coated with an opaque black light-shielding dye. The black matrix layer 61 is used to reduce the probability of optical crosstalk between adjacent pixel units 10, reduce the reflectivity of the display panel 100, and improve the display effect of the display panel 100. The color film layer 62 includes a plurality of color resist blocks 620, the plurality of color resist blocks 620 fill the plurality of first hollow areas 610 and are disposed corresponding to the plurality of pixels, that is, along a direction perpendicular to the substrate 1, an orthographic projection of each color resist block 620 on the substrate 1 covers an orthographic projection of a corresponding pixel on the substrate 1, and the color resist blocks 620 are disposed corresponding to the pixels so that light emitted from the light emitting units 3 included in the pixels can penetrate through the color resist blocks 620 more, thereby improving transmittance of the display panel 100 and further improving display effect. The color of the color block 620 is also set corresponding to the color of the light emitting unit 3, and the color block 620 may include a blue color block, a green color block, or a red color block, which is not limited in this application.
In the embodiment of the present application, the plurality of light shielding blocks 7 are light-tight structures. The light shielding block 7 can be made of opaque material, or the surface of the light shielding block 7 is coated with opaque dye to make it opaque, so as to realize the light shielding effect. The material and the manufacturing method of the light shielding block 7 may be set according to actual requirements, which is not limited in this application. Alternatively, the substrate 1 may be a rigid substrate, such as a glass substrate. The substrate 1 may also be a flexible substrate, such as a polyimide substrate, and the like, which is not limited in this application.
In the embodiment of the present application, as shown in fig. 4, when the reflected light generated by the ambient light reflected by the internal structure of the display panel 100 reaches the plurality of color resist blocks 620, the reflected light is diffracted at the plurality of color resist blocks 620 due to the shielding of the black matrix layer 61. The shading blocks 7 are filled in the color resistance block 620 corresponding to at least one pixel, the size of the light-transmitting area in the color resistance block 620 can be adjusted, the diffraction range of the reflected light at the color resistance block 620 provided with the shading blocks 7 can be adjusted, the light intensity of the diffracted light of the reflected light at the color resistance block 620 provided with the shading blocks 7 can be adjusted, the difference of the light intensity of the diffracted light of the reflected light at the color resistance blocks 620 with different colors and sizes can be adjusted, the adjustment of the light intensity of the diffracted light of the reflected light diffracted by different color resistance blocks 620 can be realized, the surface of the display panel 100 can be made to present required colors, such as white, yellow or color, and the control and adjustment of the color of the surface of the display panel 100 can be realized after the ambient light irradiates the display panel 100.
In some embodiments, the pixel unit 10 includes a first pixel and a second pixel, and the color film layer 62 includes a first color block 621 corresponding to the first pixel and a second color block 622 corresponding to the second pixel. The first color resist 621 is larger in size than the second color resist 622 in the long side direction Y and/or the wide side direction X of the base substrate 1, and the first color resist 621 includes a plurality of second hollow regions 6211 arranged at intervals.
In the embodiment of the present application, when the first color block 621 and the second color block 622 are substantially rectangular, the size of the first color block 621 is the length of the first color block 621, and the size of the second color block 622 is the length of the second color block 622 along the long side direction Y of the substrate 1. In the width direction X of the substrate base plate 1, the size of the first color block 621 is the width of the first color block 621, and the size of the second color block 622 is the width of the second color block 622.
In this embodiment, the first color block 621 is provided with a plurality of second hollow regions 6211 disposed at intervals, and the second hollow regions 6211 are filled with the light-shielding block 7. The light shielding blocks 7 are filled in the first color block 621 with a large size, the size of the light transmission region in the first color block 621 can be adjusted, thereby adjusting the diffraction range of reflected light at the first color block 621, further adjusting the light intensity of the diffracted light of the reflected light at the first color block 621, and reducing the difference of the light intensities of the diffracted light of the reflected light at the first color block 621 and the second color block 622, so that the light intensities of the diffracted light of the reflected light diffracted by the different color blocks 620 are similar, and thus the diffracted light diffracted by the different color blocks 620 can be more fused into white light, the consistency of the color on the surface of the display panel 100 is increased, after the environment light irradiates the display panel 100, the control and adjustment of the color on the surface of the display panel 100 are realized, the phenomenon of color separation of the display panel 100 is improved, and the display effect of the display panel 100 is improved.
Specifically, taking the diffraction range of the reflected light along the long side direction Y or the wide side direction X of the substrate 1 as a, the wavelength of the light emitted through the first color block 621 as λ, and the focal length of the inner lens structure of the display panel 100 as f as examples, the light intensity X of the light diffracted by the first color block 621 can be calculated according to the following formula:
Figure BDA0003759816120000091
since the focal lengths f of the display panels 100 are the same for the color resist blocks 620 of different colors, it can be known from the above formula (1) that the light intensity X of the diffracted light diffracted by the first color resist block 621 is only related to the diffraction range a. Therefore, in the embodiment of the present application, by adding a plurality of light shielding blocks 7 in the first color block 621, the diffraction range a can be adjusted, so as to adjust the light intensity of the diffracted light diffracted by the first color block 621. For example, the intensity of the diffracted light passing through the first color block 621 is the same as or similar to the intensity of the diffracted light passing through the second color block 622, and the red, green and blue light with the same or similar intensity are combined into a white light after being fused, so that the display panel 100 is entirely white, the phenomenon of color separation of the display panel 100 is improved, and the display effect of the display panel 100 is improved.
In addition, because the decline of the visual angle of the great color block 620 of size is gentler, fill shading block 7 in the great first color block 621 of size, shading block 7 can shelter from the emergent ray of luminescence unit 3 in display panel 100, thereby adjust the luminous intensity of the emergent ray of the different positions of going out through encapsulated layer 5 and first color block 621, make the decline degree of the visual angle of the different colors and the different sizes color block 620 in display panel 100 tend to unanimous, make the front view luminance and the side view luminance of display panel 100 similar, thereby improve the color cast that display panel 100 produced under different visual angles, improve the display effect of display panel 100. The front brightness is the brightness received by human eyes when the plane where the human eyes are located is parallel to the plane where the display panel 100 is located, and the side brightness is the brightness received by human eyes when the plane where the human eyes are located and the plane where the display panel 100 is located form an acute angle.
In some embodiments, the size of the first color block 621 is larger than that of the second color block 622 along the long side direction Y and/or the wide side direction X of the base substrate 1, and a plurality of light shielding blocks 7 may be filled in the second color block 622. Taking the first color block 621 as a blue color block and the second color block 622 as a red color block as an example, adding a plurality of light shielding blocks 7 in the second color block 622 can reduce the diffraction range of the reflected light passing through the red color block, thereby increasing the light intensity of the diffracted light passing through the second color block 622. Since the blue color block has a large size, the light-shielding block 7 is added in the red color block, so that the light intensity difference of the diffracted light passing through the red color block and the blue color block can be further increased, and the proportion of the light intensity of the red light is increased, so that the color presented by the display panel 100 as a whole is approximately yellow.
In the embodiment of the present application, the positions and the number of the light shielding blocks 7 can be adjusted according to actual requirements, so that the display panel 100 presents a required color, and the control and the adjustment of the color on the surface of the display panel 100 after the ambient light irradiates the display panel 100 are realized.
In some embodiments, the pixel unit 10 further includes a third pixel, and the color film layer 62 includes a third color block 623 disposed corresponding to the third pixel. In the long side direction Y and/or the wide side direction X of the base substrate 1, the size of the second color block 622 is larger than the size of the third color block 623, and the second color block 622 includes a plurality of second hollow regions 6211 arranged at intervals. Wherein the plurality of light shielding blocks 7 fill the plurality of second hollow regions 6211.
In the embodiment of the present application, as shown in fig. 6, in the long side direction Y of the substrate 1, the size of the first color block 621 is larger than that of the second color block 622, the size of the second color block 622 is larger than that of the third color block 623, and a plurality of light shielding blocks 7 are disposed in the first color block 621 and the second color block 622. The light shielding blocks 7 are filled in the first color blocking block 621 and the second color blocking block 622 with larger sizes, the sizes of the light transmission areas in the first color blocking block 621 and the second color blocking block 622 can be adjusted, the diffraction ranges of the reflected light at the first color blocking block 621 and the second color blocking block 622 are adjusted, the light intensities of the reflected light at the first color blocking block 621 and the second color blocking block 622 are adjusted, the light intensity difference of the reflected light at the first color blocking block 621, the second color blocking block 622 and the third color blocking block 623 can be further reduced, the light intensities of the reflected light diffracted by the different color blocking blocks 620 are close, the diffracted light diffracted by the different color blocking blocks 620 can be more fused into white light, the color consistency of the surface of the display panel 100 is further increased, the phenomenon of color separation of the display panel 100 is improved, and the display effect of the display panel 100 is improved.
The number and distribution positions of the light-shielding blocks 7 in the first color block 621 and the number and distribution positions of the light-shielding blocks 7 in the second color block 622 can be set according to actual requirements, for example, the number and distribution positions can be determined according to the colors and sizes of the first color block 621 and the second color block 622.
Optionally, as shown in fig. 6, when the first color block 621 is a blue color block, the second color block 622 is a green color block, and the size of the blue color block in the long side direction Y of the substrate 1 is larger than that of the green color block, the wavelength of the blue light diffracted by the blue color block is shorter, and the size of the blue color block is larger. As can be seen from the above equation (1), in order to make the light intensity of the diffracted light passing through the blue color block closer to the light intensity of the diffracted light passing through the green color block, the diffraction range of the blue color block needs to be reduced, so that the number of the light-shielding blocks 7 in the blue color block is greater than the number of the light-shielding blocks 7 in the green color block.
In addition, the first color block 621 may also be a blue color block, and the second color block 622 may be a red color block; or the first color block 621 is a red color block, and the second color block 622 is a green color block, which is not limited in this application.
In some embodiments, as shown in fig. 5, the third color block 623 includes a plurality of second hollow regions 6211 disposed at intervals, and the number of the plurality of second hollow regions 6211 in the third color block 623 is smaller than the number of the second hollow regions 6211 in the second color block 622.
In the embodiment of the present application, the number of the light-shielding blocks 7 in the third color block 623 may be smaller than the number of the light-shielding blocks 7 in the second color block 622. As shown in fig. 5, in the long side direction Y of the substrate base plate 1, the size of the first color block 621 is larger than that of the second color block 622, the size of the second color block 622 is larger than that of the third color block 623, and a plurality of light shielding blocks 7 are disposed in the first color block 621, the second color block 622, and the third color block 623.
The plurality of light shielding blocks 7 are arranged in the first color blocking block 621, the second color blocking block 622 and the third color blocking block 623, the sizes of light transmission areas in the first color blocking block 621, the second color blocking block 622 and the third color blocking block 623 can be synchronously adjusted, so that the diffraction ranges of reflected light at the first color blocking block 621, the second color blocking block 622 and the third color blocking block 623 are synchronously adjusted, the light intensities of the reflected light at the first color blocking block 621, the second color blocking block 622 and the third color blocking block 623 are adjusted, the light intensities of the reflected light after being diffracted by the first color blocking block 621, the second color blocking block 622 and the third color blocking block 623 are close to the same light intensity value, the difference of the light intensities of the reflected light at the first color blocking block 621, the second color blocking block 622 and the third color blocking block 623 can be further reduced, the light intensities of the reflected light after being diffracted by the different color blocking blocks 620 are close to the light intensity of the diffracted light at the first color blocking block 621, the second color blocking block 622 and the third color blocking block 623, the light can be further increased, the color separation phenomenon of the display panel 100 can be improved, and the color separation display panel 100 can be displayed. In addition, since the size of the third color block 623 in the long side direction Y of the substrate 1 is small, the number of the light-shielding blocks 7 in the third color block 623 is smaller than the number of the light-shielding blocks 7 in the second color block 622, so that the light intensity variation of the diffracted light passing through the third color block 623 is small, and the difference of the light intensity of the diffracted light of the reflected light at the first color block 621, the second color block 622, and the third color block 623 is further reduced.
The number and distribution position of the light-shielding blocks 7 in the first color block 621, the number and distribution position of the light-shielding blocks 7 in the second color block 622, and the number and distribution position of the light-shielding blocks 7 in the third color block 623 can be set according to actual requirements, for example, the number and distribution position can be determined according to the colors and sizes of the first color block 621, the second color block 622, and the third color block 623. In one example, the first color block 621 is a blue color block, the second color block 622 is a red color block, and the third color block 623 is a green color block. In another example, the first color block 621 is a blue color block, the second color block 622 is a green color block, and the third color block 623 is a red color block.
In some embodiments, the first color block 621 is a blue block, the second color block 622 is a green block, and the third color block 623 is a red block.
In the embodiment of the present application, as shown in fig. 5, the first color blocking block 621 is a blue color blocking block, the second color blocking block 622 is a green color blocking block, the third color blocking block 623 is a red color blocking block, and the size of the blue color blocking block in the long side direction Y of the substrate base plate 1 is greater than that of the green color blocking block, when the size of the green color blocking block in the long side direction Y of the substrate base plate 1 is greater than that of the red color blocking block, the number of the light blocking blocks 7 in the red color blocking block is smaller than that of the light blocking blocks 7 in the green color blocking block, and the number of the light blocking blocks 7 in the green color blocking block may also be smaller than that of the light blocking blocks 7 in the blue color blocking block. Specifically, since the size of the blue color block is larger than that of the green color block along the long side direction Y, the size of the green color block is larger than that of the red color block, the wavelength of the blue light diffracted by the blue color block is smaller than that of the green light diffracted by the green color block, and the wavelength of the green light is smaller than that of the red light diffracted by the red color block, it can be known by combining the above formula (1) that the number of the light shielding blocks 7 in the blue color block is larger than that of the light shielding blocks 7 in the green color block, and the number of the light shielding blocks 7 in the green color block is larger than that of the light shielding blocks 7 in the red color block, so that the light intensity of the diffracted light via the blue color block, the light intensity of the diffracted light via the green color block, and the light intensity of the diffracted light via the red color block can be closer to each other, and the diffracted light via different color blocks 620 can be fused into white light, thereby further increasing the color consistency of the surface of the display panel 100, improving the color separation phenomenon of the display panel 100, and improving the display effect of the display panel 100.
In some embodiments, the pixel unit 10 includes a first pixel and a second pixel, the color film layer 62 includes a first color block 621 corresponding to the first pixel, and a second color block 622 corresponding to the second pixel, a wavelength of the first light emitted from the first color block 621 is greater than a wavelength of the second light emitted from the second color block 622, and the second color block 622 includes a plurality of second hollow regions 6211 disposed at intervals.
In this embodiment, the first pixel may be a red pixel, the second pixel may be a green pixel, the first color block 621 is a red block, and the second color block 622 is a green block. The light emitted by the red color block is red light, the light emitted by the green color block is green light, and the wavelength of the red light is greater than that of the green light. It can be known from the formula (1) that when the sizes of the first color blocking block 621 and the second color blocking block 622 are similar, the light intensity of the light diffracted by the first color blocking block 621 is greater than the light intensity of the light diffracted by the second color blocking block 622, so that the plurality of light blocking blocks 7 are filled in the second color blocking block 622, the diffraction range of the light diffracted by the second color blocking block 622 can be reduced, the intensity of the light diffracted by the second color blocking block 622 is increased, the difference between the light intensities of the light diffracted by the reflected light at the first color blocking block 621 and the second color blocking block 622 is reduced, the light intensities of the light diffracted by the reflected light blocks 620 different in color are similar, the light diffracted by the blocks 620 different in color can be more fused into white light, the color consistency of the surface of the display panel 100 is increased, the color of the display panel 100 is controlled and adjusted after the ambient light is irradiated to the display panel 100, and the color separation phenomenon of the display panel 100 is improved.
Further, the pixel unit 10 further includes a third pixel, the color film layer 62 includes a third color block 623 corresponding to the third pixel, the wavelength of the second light emitted through the second color block 622 is greater than the wavelength of the third light emitted through the third color block 623, and the second color block 622 includes a plurality of second hollow regions 6211 disposed at intervals. The first color block 621 may be a red color block, the second color block 622 may be a green color block, and the third color block 623 may be a blue color block, because the wavelength of the blue light emitted through the third color block 623 is minimum, when the sizes of the first color block 621, the second color block 622, and the third color block 623 are substantially equal, as can be known from formula (1), the light intensity of the light diffracted by the third color block 623 is minimum, and therefore, the light blocking block 7 is added in the first color block 621 and the second color block 622, so that the light intensities of the diffracted lights diffracted by the reflected lights through different color blocks 620 are similar, and thus, the diffracted lights diffracted by different color blocks 620 can be more fused into white light, and the color consistency of the surface of the display panel 100 is further increased.
In addition, a light shielding block 7 may be added in the third color block 623 with the smallest corresponding wavelength to synchronously adjust the light intensity of the light passing through the first color block 621, the second color block 622 and the third color block 623. The position and number of the light shielding blocks 7 in each color blocking block 620 can be adjusted according to actual requirements, for example, the positions and number can be adjusted according to colors required to be displayed by the display panel 100, which is not limited in the present application.
In some embodiments, as shown in fig. 4 and 5, the plurality of light shielding blocks 7 are fabricated in the same layer as the black matrix layer 61.
In the embodiment of the present application, the plurality of light shielding blocks 7 and the black matrix layer 61 are manufactured in the same layer, that is, the plurality of light shielding blocks 7 and the black matrix layer 61 can be prepared from the same material and formed after being patterned by using the same mask, so that the manufacturing processes of the plurality of light shielding blocks 7 and the black matrix layer 61 can be simplified, the complexity of the manufacturing process is reduced, and the production cost of the display panel 100 is reduced. Alternatively, the material of the black matrix layer 61 and the plurality of light shielding blocks 7 may be chromium or carbon black. Specifically, the preparation process of the plurality of light shielding blocks 7 and the black matrix layer 61 may be that the black matrix layer 61 is formed on one side of the encapsulation layer 5 away from the substrate base plate 1, the black matrix layer 61 is exposed and developed through a first mask, and then the plurality of first hollow areas 610 and the plurality of light shielding blocks 7 disposed in the first hollow areas 610 are formed by etching.
In some embodiments, as shown in fig. 6 and 7, the first color block 621 is rectangular, along the long side direction of the first color block 621, the size of the first color block 621 is larger than the sizes of the second color block 622 and the third color block 623, and along the long side direction of the first color block 621, the first color block 621 includes a first end area 6201, a middle area 6202 and a second end area 6203, the number of the light-shielding blocks 7 in the first end area 6201 is larger than the number of the light-shielding blocks 7 in the middle area 6202, and the number of the light-shielding blocks 7 in the second end area 6203 is larger than the number of the light-shielding blocks 7 in the middle area 6202.
In the embodiment of the present application, along the long side direction of the first color block 621, the number of the light-shielding blocks 7 in the first end area 6201 and the second end area 6203 is greater than the number of the light-shielding blocks 7 in the middle area 6202, so that the problem of directivity of reflected light caused by different lengths of the long side and the wide side of the first color block 621 can be reduced, and the problem of inconsistent recession of the viewing angle of the first color block 621 in the long side direction and the recession degree of the viewing angle in the short side direction can be adjusted, so that the long side direction and the short side direction of the first color block 621 have the same recession of the viewing angle, the probability of color cast generated by the display panel 100 is reduced, and the display effect of the display panel 100 is improved.
Alternatively, as shown in fig. 6, the number of the light-shielding blocks 7 in the first end area 6201 may be 3, the number of the light-shielding blocks 7 in the middle area 6202 may be 1, and the number of the light-shielding blocks 7 in the second end area 6203 may be 3, so that the long side direction and the short side direction of the first color blocking block 621 have the same degree of viewing angle degradation.
Optionally, the distribution number of the light shielding blocks 7 in the second color blocking block 622 and the third color blocking block 623 can also be adjusted according to the sizes of the second color blocking block 622 and the third color blocking block 623, so as to adjust the degree of the visual angle degradation in the long side direction and the visual angle degradation in the short side direction of the second color blocking block 622 and the third color blocking block 623, and adjust the visual angle degradation in different directions in a single color blocking block 620 through the light shielding blocks 7, thereby adjusting the visual angle degradation in different directions of the whole display panel 100, further reducing the probability of color cast generation of the display panel 100, and improving the display effect of the display panel 100.
In some embodiments, as shown in fig. 4, 5, and 6, the pixel includes a transistor 2 and a light emitting unit 3 electrically connected to the transistor 2; the display panel 100 further includes a pixel defining layer 4, the pixel defining layer 4 defines a plurality of pixel openings, the plurality of light emitting units 3 are disposed in the plurality of pixel openings, an orthogonal projection of the first color block 621 on the substrate 1 along at least one side of the substrate 1 in the long side direction Y is located outside the orthogonal projection of the pixel opening on the substrate 1, and/or an orthogonal projection of the first color block 621 on the substrate 1 along at least one side of the substrate 1 in the wide side direction X is located outside the orthogonal projection of the pixel opening on the substrate 1.
In the embodiment of the present application, as shown in fig. 5 and 6, each pixel unit 10 includes a plurality of pixels, each pixel includes a transistor 2 and a light emitting unit 3 electrically connected to the transistor 2, the plurality of transistors 2 and the plurality of light emitting units 3 are correspondingly disposed, and each transistor 2 is configured to drive the light emitting unit 3 disposed correspondingly thereto to emit light. The pixel defining layer 4 forms a plurality of pixel openings through its own recess structure, and each light emitting unit 3 is located in one pixel opening to separate adjacent light emitting units 3, thereby reducing optical crosstalk between the adjacent light emitting units 3. The plurality of light emitting cells 3 include a plurality of red light emitting cells 3003, a plurality of green light emitting cells 3002, and a plurality of blue light emitting cells 3001. The plurality of red color resist blocks are disposed corresponding to the plurality of red light emitting cells 3003, the plurality of green color resist blocks are disposed corresponding to the plurality of green light emitting cells 3002, and the plurality of blue color resist blocks are disposed corresponding to the plurality of blue light emitting cells 3001. Alternatively, the material of the light emitting unit 3 may include lithium fluoride or the like.
In the embodiment of the present application, as shown in fig. 5, an orthographic projection of the first color block 621 on the substrate base 1 along at least one side of the long side direction Y of the substrate base 1 is located outside the orthographic projection of the pixel opening on the substrate base 1, and at this time, the orthographic projection of the first color block 621 on the substrate base 1 along at least one side of the wide side direction X of the substrate base 1 coincides with the orthographic projection of the pixel opening on the substrate base 1. The orthographic projection of the first color block 621 on the substrate base 1 along at least one side of the wide side direction X of the substrate base 1 is located outside the orthographic projection of the pixel opening on the substrate base 1, and at this time, the orthographic projection of the first color block 621 on the substrate base 1 along at least one side of the long side direction Y of the substrate base 1 coincides with the orthographic projection of the pixel opening on the substrate base 1.
In the embodiment of the present application, the orthographic projection of at least one side of the first color block 621 on the substrate 1 coincides with the orthographic projection of the pixel opening on the substrate 1, so that the problem of directionality of reflected light caused by different lengths of the long side and the wide side of the first color block 621 can be further reduced, the long side direction and the short side direction of the first color block 621 have the same degree of viewing angle degradation, the probability of color cast of the display panel 100 is reduced, the phenomenon of color separation of the display panel 100 is improved, and the display effect of the display panel 100 is improved.
In some embodiments, as shown in fig. 8 and 9, the light emitting unit 3 includes an anode layer 301, an organic light emitting layer 302, and a cathode layer 303 sequentially disposed along a side away from the substrate 1, the transistor 2 includes an active layer 201, a first gate insulating layer 202, a gate metal layer 203, and a source-drain metal layer 206 located at the side of the substrate 1, the source-drain metal layer 206 includes a source 2061 and a drain 2062, the anode layer 301 is electrically connected to the drain 2062 through a via, and the source 2061 and the drain 2062 are connected to the active layer 201 through a via.
In the embodiment of the present application, as shown in fig. 8 and 9, the anode layer 301 and the organic light emitting layer 302 of each light emitting unit 3 are separated by the pixel defining layer 4, and the cathode layers 303 of at least some of the light emitting units 3 may be connected together to have an equal potential. The display panel 100 may have a top-gate structure, and the display panel 100 may also have a bottom-gate structure or a dual-gate structure, which is not particularly limited in this application. As shown in fig. 8, taking the display panel 100 as an example of a top gate structure, the transistor 2 includes an active layer 201, a first gate insulating layer 202, a gate metal layer 203, a second gate insulating layer 204, an interlayer dielectric layer 205, and a source-drain metal layer 206, which are sequentially disposed along a direction away from the substrate 1. The anode layer 301 is connected to a source 2061 or a drain 2062 of the transistor 2 through a via, and the source 2061 or the drain 2062 is connected to the active layer 201 through a via. Among them, the anode layer 301 may be electrically connected to or used as a pixel electrode, and the cathode layer 303 may be electrically connected to or used as a common electrode. The materials of the anode layer 301 and the cathode layer 303 may include transparent metal oxides, such as Indium Zinc Oxide (IZO) and Indium Tin Oxide (ITO), and the materials of the anode layer 301 and the cathode layer 303 may also include metal materials such as copper, aluminum and silver, or alloy materials containing the above metal materials, which may be set according to actual requirements, and are not limited in this application.
In the embodiment of the present disclosure, the material of the gate metal layer 203 and the source drain metal layer 206 may include a metal material such as copper, aluminum, silver, or an alloy material containing the above metal material. The material of the first gate insulating layer 202 and the second gate insulating layer 204 may include an inorganic insulating material such as silicon oxide, silicon nitride, or silicon oxynitride, or may include an organic insulating material such as polyimide, polyphthalamide, acrylic resin, benzocyclobutene, or phenol resin. Alternatively, the gate 2031 may have a stacked structure of a copper layer and a molybdenum niobium layer for protecting the copper layer. In addition, the source electrode 2061 and the drain electrode 2062 may each include a cu layer and a mo-nb layer for protecting the cu layer, and similarly, the mo-nb layer has a protective effect on the cu layer, which may reduce the probability of corrosion of the cu layer.
When the display panel 100 is an organic light emitting display panel, as shown in fig. 8, the organic light emitting display panel includes the substrate 1, the transistor 2, and the light emitting unit 3 located on a side of the transistor 2 away from the substrate 1. The light emitting unit 3 includes an anode layer 301 and a cathode layer 303, and an organic light emitting layer 302 between the anode layer 301 and the cathode layer 303, and the transistor 2 is used to drive electron recombination light emission in the organic light emitting layer 302 in the light emitting unit 3. The organic light emitting layer 302 may be formed by evaporation, and the organic light emitting layer 302 may include a hole transport layer and an electron transport layer stacked together.
When the display panel 100 is a tft-lcd panel, as shown in fig. 9, the tft-lcd panel includes the substrate 1, a plurality of transistors 2, an anode layer 301, a cathode layer 303, and a liquid crystal layer 8 located on a side of the cathode layer 303 away from the substrate 1, where the liquid crystal layer 8 includes a plurality of liquid crystal cells, each liquid crystal cell is corresponding to one transistor 2, and the transistor 2 is used for driving liquid crystal molecules in the corresponding liquid crystal cell to generate an oriented deflection.
In the embodiment of the present application, as shown in fig. 8, the display panel 100 further includes a passivation layer 207 and a planarization layer 208. The passivation layer 207 is used for protecting other layer structures below and delaying the corrosion speed of the layer structures such as the source-drain metal layer 206. A via is provided in the planarization layer 208, the via penetrates through the passivation layer 207 and the planarization layer 208, and the anode may be electrically connected to the source-drain metal layer 206 in the transistor 2 through the via. Specifically, as shown in fig. 8, the anode layer 301 is connected to the drain electrode 2062 through a via hole. The planarization layer 208 is disposed above the passivation layer 207 for improving the flatness of the surface of the transistor 2 away from the substrate 1, so as to facilitate the subsequent film layer fabrication.
An embodiment of the second aspect of the present application provides a method for manufacturing a display panel 100, as shown in fig. 10, including:
step S1001, providing a substrate;
step S1002, forming a plurality of pixel units on one side of a substrate, wherein each pixel unit comprises a plurality of pixels;
step S1003, forming a packaging layer on one side of the pixel units, which is far away from the substrate, wherein the packaging layer covers the pixel units;
step S1004, a color film substrate and a plurality of light shielding blocks are formed on one side of the encapsulation layer, which is far away from the substrate, the color film substrate includes a black matrix layer and a color film layer, the black matrix layer includes a plurality of first hollow areas arranged at intervals, the color film layer includes a plurality of color blocking blocks, the plurality of color blocking blocks fill the plurality of first hollow areas and are arranged corresponding to a plurality of pixels included in the plurality of pixel units, the color blocking block corresponding to at least one pixel included in a pixel unit includes a plurality of second hollow areas, and the plurality of light shielding blocks fill the plurality of second hollow areas.
In the embodiment of the present application, when the reflected light generated by the reflection of the ambient light by the internal structure of the display panel 100 reaches the plurality of color blocking blocks 620, the reflected light is diffracted at the plurality of color blocking blocks 620 due to the shielding of the black matrix layer 61. The color resistance block 620 corresponding to at least one pixel is filled with a plurality of shading blocks 7, the size of a light-transmitting area in the color resistance block 620 can be adjusted, so that the diffraction range of reflected light at the color resistance block 620 provided with the shading blocks 7 is adjusted, the light intensity of diffracted light of the reflected light at the color resistance block 620 provided with the shading blocks 7 is adjusted, the difference of the light intensity of the diffracted light of the reflected light at the color resistance blocks 620 with different colors and sizes can be adjusted, the adjustment of the light intensity of the diffracted light of the reflected light diffracted by different color resistance blocks 620 is realized, the surface of the display panel 100 presents required colors, such as white, yellow or color, and the like, and the control and adjustment of the color of the surface of the display panel 100 after the ambient light irradiates the display panel 100 are realized.
In some embodiments, the step of forming the color film substrate 6 and the plurality of light shielding blocks 7 on the side of the encapsulation layer 5 away from the substrate 1 includes:
step one, forming a black matrix layer 61 on one side of the packaging layer 5, which is far away from the substrate base plate 1;
step two, providing a first mask, and performing patterning treatment on the black matrix layer 61 through the first mask to form a plurality of first hollow areas 610 and a plurality of shading blocks 7 located in the first hollow areas 610;
step three, forming a color film layer 62 on one side of the substrate base plate 1, wherein the color film layer 62 comprises a plurality of color resist blocks 620, the plurality of color resist blocks 620 fill the plurality of first hollow areas 610, and the color film base plate 6 comprises a black matrix layer 61 and the color film layer 62.
In the embodiment of the present application, the plurality of light shielding blocks 7 and the black matrix layer 61 are manufactured in the same layer, and the plurality of light shielding blocks 7 and the black matrix layer 61 can be manufactured by using the same material and formed after being patterned by using the same mask, so that the manufacturing processes of the plurality of light shielding blocks 7 and the black matrix layer 61 can be simplified, the complexity of the manufacturing process is reduced, and the production cost of the display panel 100 is reduced.
An embodiment of the third aspect of the present application provides a display device including the display panel 100 described in any one of the above.
In the embodiment of the present application, the display device includes the display panel 100 in any of the embodiments described above. The display device includes, but is not limited to, a mobile phone, a tablet computer, a display, a television, a picture screen, an advertisement screen, electronic paper, and the like. Since the display device includes the display panel 100, the display device has all advantages of the display panel 100.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present disclosure, and the present disclosure should be construed as being covered by the claims and the specification. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present application is not intended to be limited to the particular embodiments disclosed herein but is to cover all embodiments that may fall within the scope of the appended claims.

Claims (10)

1. A display panel, comprising:
the pixel structure comprises a substrate and a plurality of pixel units positioned on one side of the substrate, wherein each pixel unit comprises a plurality of pixels;
the packaging layer is positioned on one side, away from the substrate base plate, of the pixel units and covers the pixel units;
the color film substrate is positioned on one side, away from the substrate, of the packaging layer, and comprises a black matrix layer and a color film layer, the black matrix layer comprises a plurality of first hollow areas which are arranged at intervals, the color film layer comprises a plurality of color resistance blocks, the plurality of color resistance blocks are filled in the plurality of first hollow areas and are arranged corresponding to a plurality of pixels of the plurality of pixel units, and the color resistance block corresponding to at least one pixel of the pixel units comprises a plurality of second hollow areas;
a plurality of light shielding blocks filling the plurality of second hollow areas.
2. The display panel of claim 1, wherein the plurality of light shielding blocks are fabricated in the same layer as the black matrix layer.
3. The display panel of claim 1, wherein the pixel unit comprises a first pixel and a second pixel, and the color film layer comprises a first color block corresponding to the first pixel and a second color block corresponding to the second pixel;
along the long side direction and/or the broadside direction of substrate base plate, the size of first look hinders the piece and is greater than the size of second look hinders the piece, first look hinders the piece including the interval a plurality of second hollow area.
4. The display panel according to claim 3, wherein the pixel unit further comprises a third pixel, and the color film layer comprises a third color block disposed corresponding to the third pixel;
and in the long side direction and/or the wide side direction of the substrate base plate, the size of the second color blocking block is larger than that of the third color blocking block, and the second color blocking block comprises a plurality of second hollow areas which are arranged at intervals.
5. The display panel according to claim 4, wherein the third color block comprises a plurality of second hollow areas arranged at intervals, and the number of the plurality of second hollow areas in the third color block is smaller than the number of the plurality of second hollow areas in the second color block;
the first color block is a blue color block, the second color block is a green color block, and the third color block is a red color block.
6. The display panel according to claim 5, wherein the first color block has a rectangular shape, a size of the first color block is larger than sizes of the second color block and the third color block along a long side direction of the first color block, the first color block includes a first end region, a middle region and a second end region along the long side direction of the first color block, a number of the light-shielding blocks in the first end region is larger than a number of the light-shielding blocks in the middle region, and a number of the light-shielding blocks in the second end region is larger than a number of the light-shielding blocks in the middle region.
7. The display panel according to claim 1, wherein the pixel unit comprises a first pixel and a second pixel, the color film layer comprises a first color block corresponding to the first pixel, and a second color block corresponding to the second pixel, a wavelength of the first light emitted through the first color block is greater than a wavelength of the second light emitted through the second color block, and the second color block comprises a plurality of second hollow areas arranged at intervals.
8. A method for manufacturing a display panel is characterized by comprising the following steps:
providing a substrate base plate;
forming a plurality of pixel units on one side of the substrate, wherein each pixel unit comprises a plurality of pixels;
forming an encapsulation layer on one side of the pixel units, which is far away from the substrate, wherein the encapsulation layer covers the pixel units;
a color film substrate and a plurality of shading blocks are formed on one side, away from the substrate, of the packaging layer, the color film substrate comprises a black matrix layer and a color film layer, the black matrix layer comprises a plurality of first hollow areas which are arranged at intervals, the color film layer comprises a plurality of color blocking blocks, the plurality of color blocking blocks are filled in the plurality of first hollow areas and are arranged corresponding to a plurality of pixels included in the plurality of pixel units, the color blocking block corresponding to at least one pixel included in the pixel units comprises a plurality of second hollow areas, and the plurality of shading blocks are filled in the plurality of second hollow areas.
9. The manufacturing method of claim 8, wherein the step of forming a color filter substrate and a plurality of light shielding blocks on a side of the encapsulation layer away from the substrate comprises:
forming a black matrix layer on one side of the packaging layer far away from the substrate base plate;
providing a first mask, and carrying out patterning treatment on the black matrix layer through the first mask to form a plurality of first hollow areas and a plurality of shading blocks positioned in the first hollow areas;
and forming a color film layer on one side of the substrate, wherein the color film layer comprises a plurality of color resistance blocks, the plurality of color resistance blocks are filled in the plurality of first hollow areas, and the color film substrate comprises the black matrix layer and the color film layer.
10. A display device characterized by comprising the display panel according to any one of claims 1 to 7.
CN202210869096.XA 2022-07-22 2022-07-22 Display panel, manufacturing method of display panel and display device Pending CN115207068A (en)

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Application Number Priority Date Filing Date Title
CN202210869096.XA CN115207068A (en) 2022-07-22 2022-07-22 Display panel, manufacturing method of display panel and display device

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