CN115050783A - Display panel, manufacturing method thereof and display device - Google Patents
Display panel, manufacturing method thereof and display device Download PDFInfo
- Publication number
- CN115050783A CN115050783A CN202210588685.0A CN202210588685A CN115050783A CN 115050783 A CN115050783 A CN 115050783A CN 202210588685 A CN202210588685 A CN 202210588685A CN 115050783 A CN115050783 A CN 115050783A
- Authority
- CN
- China
- Prior art keywords
- light
- layer
- antireflection
- display panel
- functional layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 239000010410 layer Substances 0.000 claims abstract description 184
- 239000002346 layers by function Substances 0.000 claims abstract description 98
- 238000001914 filtration Methods 0.000 claims abstract description 76
- 238000000034 method Methods 0.000 claims description 11
- 239000000758 substrate Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 238000009826 distribution Methods 0.000 claims description 6
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 6
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 4
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 4
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 abstract description 14
- 238000000926 separation method Methods 0.000 abstract description 14
- 230000003287 optical effect Effects 0.000 description 11
- 239000012790 adhesive layer Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 230000001681 protective effect Effects 0.000 description 7
- 238000005538 encapsulation Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000005229 chemical vapour deposition Methods 0.000 description 4
- 239000010408 film Substances 0.000 description 4
- 239000002356 single layer Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 229910004205 SiNX Inorganic materials 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000001312 dry etching Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000012356 Product development Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005525 hole transport Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 239000004984 smart glass Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/38—Devices specially adapted for multicolour light emission comprising colour filters or colour changing media [CCM]
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/85—Arrangements for extracting light from the devices
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/86—Arrangements for improving contrast, e.g. preventing reflection of ambient light
- H10K50/865—Arrangements for improving contrast, e.g. preventing reflection of ambient light comprising light absorbing layers, e.g. light-blocking layers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Electroluminescent Light Sources (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention provides a display panel, a manufacturing method thereof and a display device; the display panel comprises a light-emitting functional layer, a light-filtering functional layer and a reflection reducing functional layer, wherein the light-emitting functional layer comprises a plurality of light-emitting units, the light-filtering functional layer is arranged above the light-emitting functional layer, the light-filtering functional layer comprises a plurality of light-filtering patterns and shading patterns arranged among the light-filtering patterns, at least one light-filtering pattern is overlapped with the corresponding light-emitting unit, the reflection reducing functional layer comprises at least one reflection reducing layer, the reflection reducing layer is arranged above the light-filtering functional layer, and at least one reflection reducing layer at least covers the shading patterns. According to the embodiment of the invention, the antireflection functional layer is arranged on the light filtering functional layer, so that the emergent direction of the reflected light is deflected, the interference phenomenon of the light is inhibited, and the color separation phenomenon existing in the POL-less technology of the display panel is improved.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display panel, a manufacturing method of the display panel and a display device.
Background
With the increasing display screen size and the demand of the foldable screen technology, the development of low power consumption, Light and thin flexible OLED (Organic Light-Emitting Diode) display technology is becoming a trend. In traditional display panel, adopt the Polaroid (POL) can effectively reduce the reflectivity of panel under the highlight, but can lose about 58% light-emitting, corresponding consumption can increase, and this has also increased the life-span burden to OLED display, and polaroid thickness is big simultaneously, the material is fragile, is unfavorable for dynamic buckling and frivolous product development. Based on the POL-less technology, a Color film (Color Filter) is adopted to replace a polarizer, and the POL-less technology can improve the light output amount and can meet the development requirement of a dynamic bending product.
However, the POL-less technology widely used in the panel industry at present has technical defects, as shown in fig. 1, which is a schematic structural diagram of the POL-less technology widely used in the panel industry at present, and it can be known from the figure that, under the irradiation of a point light source, a color separation phenomenon, that is, a phenomenon of color separation of reflected light in a POL-less area, occurs because a color film cannot completely absorb the reflected light, a pixel array is periodically arranged, and a condition of light interference is satisfied.
Accordingly, the POL-less technology of the conventional display panel has a technical problem of a color separation phenomenon, and needs to be improved.
Disclosure of Invention
The invention provides a display panel, a manufacturing method thereof and a display device, which are used for relieving the technical problem of color separation phenomenon in the POL-less technology of the conventional display panel.
In order to solve the above problems, the technical scheme provided by the invention is as follows:
an embodiment of the present invention provides a display panel, including:
a light emitting functional layer including a plurality of light emitting cells;
a light filtering function layer disposed above the light emitting function layer, the light filtering function layer including a plurality of light filtering patterns and light shielding patterns disposed between the plurality of light filtering patterns, at least one of the light filtering patterns overlapping with a corresponding light emitting unit;
the antireflection functional layer comprises at least one antireflection layer and is arranged above the light filtering functional layer; the at least one antireflection layer covers at least the light-shielding pattern.
In the display panel provided in the embodiment of the present invention, the at least one antireflection layer at least includes:
a first antireflection layer disposed above the light filtering function layer;
and the second antireflection layer is arranged above the first antireflection layer in a laminated mode, and the refractive index of the first antireflection layer is smaller than that of the second antireflection layer.
In the display panel provided in the embodiment of the present invention, each of the first antireflection layer and the second antireflection layer includes a plurality of lens structures and a plurality of flat structures connected to each other, the plurality of lens structures are stacked in correspondence with the plurality of light shielding patterns, and the plurality of flat structures are stacked in correspondence with the plurality of filter patterns.
In the display panel provided by the embodiment of the invention, the first antireflection layer and the second antireflection layer are both provided with recesses to form the lens structures, and the depth of the lens structures of the first antireflection layer is smaller than that of the lens structures of the second antireflection layer.
In the display panel provided by the embodiment of the invention, the upper surface of the first antireflection layer, and the upper surface and the lower surface of the second antireflection layer are flat surfaces.
In the display panel provided in the embodiment of the present invention, the at least one anti-reflection layer at least includes:
the first antireflection layer is arranged above the light filtering function layer and comprises a plurality of lens structures arranged at intervals, and the lens structures and the shading patterns are correspondingly stacked.
In the display panel provided in the embodiment of the present invention, the material of the anti-reflection function layer is one or two of silicon nitride, silicon oxide, and aluminum oxide.
In the display panel provided in the embodiment of the present invention, the distribution density of the lens structures located in the central area of the display panel is less than the distribution density of the lens structures located in the edge area of the display panel.
Further, an embodiment of the present invention further provides a method for manufacturing a display panel, including:
manufacturing a light-emitting functional layer above the array substrate, wherein the light-emitting functional layer comprises a plurality of light-emitting units;
forming a light filtering function layer over the light emitting function layer, the light filtering function layer including a plurality of light filtering patterns and light shielding patterns disposed between the plurality of light filtering patterns, at least one of the light filtering patterns overlapping a corresponding one of the light emitting cells;
forming an antireflection functional layer over the light filtering functional layer, the antireflection functional layer including at least one antireflection layer; the at least one antireflection layer covers at least the light-shielding pattern.
Further, an embodiment of the present invention further provides a display device, including the display panel described in any one of the above embodiments or the display panel manufactured by the method described in the above embodiments.
The invention has the beneficial effects that: the invention provides a display panel, a manufacturing method thereof and a display device; the display panel comprises a light-emitting functional layer, a light-filtering functional layer and an antireflection functional layer, wherein the light-emitting functional layer comprises a plurality of light-emitting units; the light filtering function layer is arranged above the light emitting function layer and comprises a plurality of light filtering patterns and light shading patterns arranged among the light filtering patterns, and at least one light filtering pattern is overlapped with the corresponding light emitting unit; the antireflection functional layer comprises at least one antireflection layer arranged above the light filtering functional layer, and the at least one antireflection layer at least covers the shading pattern. According to the embodiment of the invention, the antireflection functional layer is arranged on the light filtering functional layer, so that the emergent direction of the reflected light is deflected, the interference phenomenon of the light is inhibited, and the color separation phenomenon existing in the POL-less technology of the display panel is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced 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 to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic cross-sectional view of a display panel in the prior art according to an embodiment of the present invention;
fig. 2 is a schematic cross-sectional structure diagram of a first display panel according to an embodiment of the present invention;
fig. 3 is a schematic cross-sectional structure diagram of a second display panel according to an embodiment of the invention;
fig. 4 is a schematic cross-sectional structure diagram of a third display panel according to an embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of 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 thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In this application, the word "exemplary" is used to mean "serving as an example, instance, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is presented to enable any person skilled in the art to make and use the invention. In the following description, details are set forth for the purpose of explanation. It will be apparent to one of ordinary skill in the art that the present invention may be practiced without these specific details. In other instances, well-known structures and processes are not set forth in detail in order to avoid obscuring the description of the present invention with unnecessary detail. Thus, the present invention is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein.
Aiming at the technical problem of the color separation phenomenon in the POL-less technology of the existing display panel, the embodiment of the invention can be alleviated.
In order to alleviate the above problem, the present application provides a display panel, and in particular, the display panel provided by the present application includes a light emitting functional layer, a light filtering functional layer, and a antireflection functional layer, where the light emitting functional layer includes a plurality of light emitting units; the light filtering function layer is arranged above the light emitting function layer and comprises a plurality of light filtering patterns and light shading patterns arranged among the light filtering patterns, and at least one light filtering pattern is overlapped with the corresponding light emitting unit; the antireflection functional layer comprises at least one antireflection layer arranged above the light filtering functional layer, and the at least one antireflection layer at least covers the shading pattern.
The display panel provided by the present application is explained in detail by specific embodiments below.
In an embodiment, please refer to fig. 2, fig. 3 and fig. 4, in which fig. 2 is a schematic cross-sectional structure diagram of a first display panel according to an embodiment of the present invention, fig. 3 is a schematic cross-sectional structure diagram of a second display panel according to an embodiment of the present invention, and fig. 3 is a schematic cross-sectional structure diagram of a third display panel according to an embodiment of the present invention. As shown in fig. 2, fig. 3, or fig. 4, a display panel according to an embodiment of the present invention includes:
a light-emitting functional layer 12 including a plurality of light-emitting units;
a filter function layer 14 disposed above the light emitting function layer 12, wherein the filter function layer 14 includes a plurality of filter patterns and light shielding patterns disposed between the filter patterns, and at least one of the filter patterns overlaps with a corresponding light emitting unit;
an antireflection functional layer 19 including at least one antireflection layer provided above the filter functional layer 14; the at least one antireflection layer covers at least the light-shielding pattern.
In the present application, when the display panel has the structure as shown in fig. 2, the antireflection layer of the antireflection functional layer is preferably two or more layers, and the reflection interference periodicity is changed by deflecting the refraction angle of light in different density media to suppress the interference phenomenon of light, but the structure may be a single-layer antireflection layer, and when the antireflection functional layer is a single-layer antireflection layer, since the reflection light passes through only one layer of media, the reflection light exit direction angle is not greatly deflected, and the effect of suppressing light interference is relatively poor, the antireflection functional layer in the structure is generally provided with two or more antireflection layers; when the display panel has the structure shown in fig. 3 or 4, the antireflection functional layer is designed to have a lens structure in the region above the light-shielding pattern, and the lens structure can deflect the outgoing direction of the reflected light and improve the interference phenomenon of light, so when the display panel has the structure shown in fig. 3 or 4, the antireflection functional layer is generally provided with a single layer or more than a single layer.
The invention provides a display panel, a manufacturing method thereof and a display device; the display panel comprises a light-emitting functional layer, a light-filtering functional layer and an antireflection functional layer, wherein the light-emitting functional layer comprises a plurality of light-emitting units; the light filtering function layer is arranged above the light emitting function layer and comprises a plurality of light filtering patterns and light shading patterns arranged among the light filtering patterns, and at least one light filtering pattern is overlapped with the corresponding light emitting unit; the antireflection functional layer comprises at least one antireflection layer arranged above the light filtering functional layer, and the at least one antireflection layer at least covers the shading pattern. According to the embodiment of the invention, the antireflection functional layer is arranged on the light filtering functional layer, so that the emergent direction of the reflected light is deflected, the interference phenomenon of the light is inhibited, and the color separation phenomenon existing in the POL-less technology of the display panel is improved.
In addition, as shown in fig. 2, fig. 3, or fig. 4, the display panel according to the embodiment of the present invention further includes an array substrate 11, an encapsulation layer 13, an optical adhesive layer 17, and a protective cover 18; the array substrate 11 is arranged below the light-emitting functional layer 12 and drives the light-emitting functional layer 12 to emit light; the encapsulating layer 13 covers the light-emitting functional layer 12, and is used for encapsulating the light-emitting functional layer 12 to prevent moisture, oxygen and the like from entering the light-emitting functional layer 12; the optical Adhesive layer 17 comprises Optical Clear Adhesive (OCA) optical Adhesive, and is coated on the upper surface of the antireflection functional layer 19 to attach to the protective cover plate 18; the protective cover 18 may be a glass cover for protecting the display panel and is attached to the optical adhesive layer 17.
In one embodiment, as shown in fig. 2, the at least one antireflection layer includes at least:
a first antireflection layer 15 provided above the filter function layer 14;
and a second antireflection layer 16 stacked above the first antireflection layer 15, wherein a refractive index of the first antireflection layer 15 is smaller than a refractive index of the second antireflection layer 16.
The refractive index is a ratio of a propagation speed of light in a vacuum to a propagation speed of light in the medium, the refractive index is related to a material of the medium, and the refractive index of the optically dense medium is larger than that of the optically sparse medium.
Specifically, the first anti-reflection layer 15 and the second anti-reflection layer 16 may be formed by a CVD (chemical vapor deposition) process, wherein the second anti-reflection layer 16 is formed at a low deposition rate, and the second anti-reflection layer 16 is formed at a low deposition rate, so that the film quality can be more dense, that is, the second anti-reflection layer 16 is a light-tight medium relative to the first anti-reflection layer 15; the light reflected from the POL-less area is deflected in the direction that the optically thinner medium enters the optically denser medium, so that the light-emitting angle is changed, the light coincidence probability of the light refracted by the same pixel is reduced, the light interference phenomenon can be effectively inhibited, and the color separation problem is improved.
Further, when the number of the anti-reflection layers is multiple, the refractive indexes of the film materials need to be matched, that is, in the cross-sectional view shown in fig. 2, in a direction perpendicular to the anti-reflection layers, from bottom to top, the first anti-reflection layer, the second anti-reflection layer and the third anti-reflection layer … … are sequentially arranged from bottom to top, so that the refractive index of the first anti-reflection layer is smaller than that of the second anti-reflection layer, and the refractive index of the second anti-reflection layer is smaller than that of the third anti-reflection layer … …
In one embodiment, as shown in fig. 3, each of the first and second antireflection layers 15 and 16 includes a plurality of lens structures and a plurality of flat structures connected to each other, the plurality of lens structures being stacked in correspondence with the plurality of light shielding patterns, and the plurality of flat structures being stacked in correspondence with the plurality of filter patterns; specifically, a first antireflection layer 15 is deposited above the light filtering functional layer 14, then a plurality of lens structures in the shape of concave lenses are formed in the areas above a plurality of light shielding patterns of the light filtering functional layer 14 through exposure, development and dry etching, a second antireflection layer 16 is deposited, a plurality of lens structures in the shape of concave lenses are also formed on the second antireflection layer 16, and the lens structures on the second antireflection layer 16 are arranged corresponding to the lens structures on the first antireflection layer 15; in the structure, the light reflected by the POL-less area is deflected by the lens structure, so that the probability of light interference is effectively reduced, and the color separation phenomenon is improved.
In addition, the first antireflection layer 15 and the second antireflection layer 16 have a plurality of flat structures in regions connected to the plurality of lens structures, and the plurality of flat structures are stacked in correspondence with the plurality of filter patterns of the filter function layer 14.
In one embodiment, as shown in fig. 3, the first antireflection layer 15 and the second antireflection layer 16 are each provided with a recess to form the lens structure, and the depth of the lens structure of the first antireflection layer 15 is smaller than the depth of the lens structure of the second antireflection layer 16. Specifically, the deeper the depth of the lens structure of the second antireflection layer 16, the larger the deflection angle of the emitted light, which is more advantageous for suppressing the interference phenomenon of light.
Of course, in another embodiment, when the number of the antireflection layers is multiple, the depth of the lens structure of each antireflection layer may be the same.
In one embodiment, as shown in fig. 2, the upper surface of the first antireflection layer 15 and the upper and lower surfaces of the second antireflection layer 16 are flat surfaces. In particular, this arrangement ensures the flatness of the surfaces of the first antireflection layer 15 and the second antireflection layer 16, which facilitates the subsequent attachment of the protective cover 18.
In one embodiment, as shown in fig. 4, the at least one antireflection layer includes at least:
and a first antireflection layer 15 disposed above the filter function layer 14, wherein the first antireflection layer 15 includes a plurality of lens structures disposed at intervals, and the plurality of lens structures are stacked in correspondence with the plurality of light-shielding patterns.
Specifically, in this embodiment, on the basis of fig. 3, in order to reduce the shielding of the filter pattern of the filter function layer 14 and avoid affecting the light transmittance of the display panel, the flat structure above the filter pattern may be etched during dry etching, as shown in fig. 4, only the plurality of lens structures spaced above the light shielding pattern of the filter function layer 14 are left on the first antireflection layer 15, and this design can reduce the shielding and improve the display effect of the display panel.
Alternatively, in another embodiment, the antireflection layer including a plurality of lens structures arranged at intervals may also be arranged by stacking two or more layers.
In one embodiment, the material of the anti-reflection function layer 19 is silicon nitride (SiNx), silicon oxide (SiOx) and aluminum oxide (Al) 2 O 3 ) One or two of them. Specifically, the antireflection functional layer 19 may be formed by a chemical vapor deposition process.
In one embodiment, the distribution density of the lens structures located at the central region of the display panel is less than the distribution density of the lens structures located at the edge region of the display panel. It should be noted that, generally, the color separation phenomenon is more likely to occur in the edge area of the display panel, and therefore, the lens structures with a higher density may be disposed in the edge area of the display panel, and the lens structures with a relatively lower density may be disposed in the center area of the display panel, so that the design is more beneficial to improving the color separation phenomenon of the display panel, and is further beneficial to improving the display effect of the display panel.
The embodiment of the present application further provides a manufacturing method of a display panel, where the manufacturing method includes:
manufacturing a light-emitting functional layer above the array substrate, wherein the light-emitting functional layer comprises a plurality of light-emitting units;
forming a light filtering function layer over the light emitting function layer, the light filtering function layer including a plurality of light filtering patterns and light shielding patterns disposed between the plurality of light filtering patterns, at least one of the light filtering patterns overlapping a corresponding one of the light emitting cells;
forming an antireflection functional layer over the light filtering functional layer, the antireflection functional layer including at least one antireflection layer; the at least one antireflection layer covers at least the light-shielding pattern.
A method for manufacturing a display panel according to an embodiment of the present application will be described with reference to fig. 2, 3, and 4.
As shown in fig. 2, fig. 3, or fig. 4, the method for manufacturing a display panel provided by the present application includes the following steps:
step 1, providing an array substrate.
Specifically, the array substrate 11 may include an active layer, a gate electrode, a gate insulating layer, a source electrode, a drain electrode, a passivation layer, and a planarization layer disposed on a substrate, which are not described herein again.
And 2, manufacturing a light-emitting functional layer above the array substrate.
As shown in fig. 2, 3 or 4, a light-emitting functional layer 12 is disposed above the array substrate 11, and the light-emitting functional layer 12 includes a plurality of light-emitting units. Specifically, the light-emitting functional layer 12 may include a first electrode, a pixel defining layer, an organic light-emitting layer, and a second electrode, where the organic light-emitting layer may only include a light-emitting layer, and may also include a hole injection layer, a hole transport layer, a light-emitting layer, an electron transport layer, and an electron injection layer, which are sequentially disposed on one side of the first electrode away from the array substrate 11.
And 3, forming a packaging layer covering the luminous function layer.
As shown in fig. 2, 3 or 4, an encapsulating layer 13 is formed on the light-emitting functional layer 12, the encapsulating layer 13 covers the light-emitting functional layer 12, and the encapsulating layer 13 is used for encapsulating the light-emitting functional layer 12 to prevent moisture, oxygen, and the like from entering the light-emitting functional layer 12; the encapsulation layer 13 may comprise a thin film encapsulation layer, which may be, for example, a stack of an organic encapsulation layer and an inorganic encapsulation layer.
And 4, forming a filtering function layer above the packaging layer.
As shown in fig. 2, 3 or 4, the filter function layer 14 is disposed above the encapsulation layer 13, the filter function layer 14 includes a plurality of filter patterns and light shielding patterns disposed between the filter patterns, and at least one of the filter patterns overlaps with a corresponding light emitting unit; the plurality of light filtering patterns comprise a red color resistor, a green color resistor and a blue color resistor, and the light shading patterns are black color resistor blocks.
And 5, forming an antireflection functional layer above the light filtering functional layer.
Specifically, as shown in fig. 2, 3 or 4, an anti-reflection function layer 19 is deposited above the light filtering function layer 14 by using a chemical vapor deposition process, and the material of the anti-reflection function layer 19 is silicon nitride (SiNx), silicon oxide (SiOx) and aluminum oxide (Al) 2 O 3 ) The antireflection functional layer 19 includes at least one antireflection layer; the at least one antireflection layer covers at least the light-shielding pattern.
Alternatively, in an embodiment, as shown in fig. 2, the antireflection functional layer 19 includes a first antireflection layer 15 and a second antireflection layer 16 which are stacked, and the refractive index of the first antireflection layer 15 is smaller than the refractive index of the second antireflection layer 16.
Alternatively, in another embodiment, as shown in fig. 3, each of the first and second antireflection layers 15 and 16 includes a plurality of lens structures and a plurality of flat structures connected to each other, the plurality of lens structures are stacked in correspondence with the plurality of light shielding patterns, and the plurality of flat structures are stacked in correspondence with the plurality of filter patterns.
Optionally, in another embodiment, as shown in fig. 4, the at least one antireflection layer at least includes:
and a first antireflection layer 15 disposed above the filter function layer 14, wherein the first antireflection layer 15 includes a plurality of lens structures disposed at intervals, and the plurality of lens structures are stacked in correspondence with the plurality of light-shielding patterns.
And 6, coating an optical adhesive layer on the surface of the antireflection functional layer.
Specifically, as shown in fig. 2, 3 or 4, the optical adhesive layer 17 is coated on the upper surface of the antireflection functional layer 19, and the optical adhesive layer 17 may be an OCA optical adhesive.
And 7, attaching a protective cover plate to the surface of the optical adhesive layer.
Specifically, the protective cover 18 may be a glass cover for protecting the display panel, as shown in fig. 2, 3, or 4, the protective cover 18 is attached to the optical adhesive layer 17.
Thus, the display panel is manufactured.
As can be seen from the above description, in the manufacturing method of the display panel provided in the present application, the antireflection functional layer is disposed on the filtering functional layer, so as to deflect the outgoing direction of the reflected light, thereby achieving suppression of the interference phenomenon of light, improving the color separation phenomenon of the POL-less technology of the display panel, and further improving the display effect of the display panel.
Correspondingly, the embodiment of the invention also provides a display device, which comprises the display panel provided by the invention or the display panel manufactured by the method provided by the invention. In practical applications, the display device may be an electronic terminal with a display function, such as a fixed terminal like a desktop computer or a television, or a mobile terminal like a smart phone or a tablet computer, or a wearable device like smart glasses or a telephone watch.
According to the above embodiments:
the invention provides a display panel, a manufacturing method thereof and a display device; the display panel comprises a light-emitting functional layer, a light-filtering functional layer and an antireflection functional layer, wherein the light-emitting functional layer comprises a plurality of light-emitting units; the light filtering functional layer is arranged above the light emitting functional layer and comprises a plurality of light filtering patterns and light shading patterns arranged among the light filtering patterns, and at least one light filtering pattern is overlapped with the corresponding light emitting unit; the antireflection functional layer comprises at least one antireflection layer arranged above the light filtering functional layer, and the at least one antireflection layer at least covers the shading pattern. According to the embodiment of the invention, the antireflection functional layer is arranged on the light filtering functional layer, so that the emergent direction of the reflected light is deflected, the interference phenomenon of the light is inhibited, the color separation phenomenon existing in the POL-less technology of the display panel is improved, and the display effect of the display panel is further improved.
In view of the foregoing, it is intended that the present invention cover the preferred embodiment of the invention and not be limited thereto, but that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention.
Claims (10)
1. A display panel, comprising:
a light emitting functional layer including a plurality of light emitting cells;
a light filtering function layer disposed above the light emitting function layer, the light filtering function layer including a plurality of light filtering patterns and light shielding patterns disposed between the plurality of light filtering patterns, at least one of the light filtering patterns overlapping with a corresponding light emitting unit;
the antireflection functional layer comprises at least one antireflection layer and is arranged above the light filtering functional layer; the at least one antireflection layer at least covers the shading pattern.
2. The display panel of claim 1, wherein the at least one anti-reflection layer comprises at least:
a first antireflection layer disposed above the light filtering function layer;
and the second antireflection layer is arranged above the first antireflection layer in a laminated mode, and the refractive index of the first antireflection layer is smaller than that of the second antireflection layer.
3. The display panel according to claim 2, wherein the first antireflection layer and the second antireflection layer each include a plurality of lens structures and a plurality of flat structures connected to each other, the plurality of lens structures being stacked in correspondence with the plurality of light shielding patterns, and the plurality of flat structures being stacked in correspondence with the plurality of filter patterns.
4. A display panel as claimed in claim 3 characterized in that the first and the second antireflection layer are each provided with recesses to form the lens structures, the depth of the lens structures of the first antireflection layer being smaller than the depth of the lens structures of the second antireflection layer.
5. The display panel according to claim 2, wherein an upper surface of the first antireflection layer, and an upper surface and a lower surface of the second antireflection layer are flat surfaces.
6. The display panel of claim 1, wherein the at least one anti-reflection layer comprises:
the first antireflection layer is arranged above the light filtering function layer and comprises a plurality of lens structures arranged at intervals, and the lens structures and the shading patterns are correspondingly stacked.
7. The display panel according to claim 1, wherein the material of the antireflection functional layer is one or two of silicon nitride, silicon oxide, and aluminum oxide.
8. The display panel according to claim 3 or 6, wherein the distribution density of the lens structures in the central region of the display panel is less than the distribution density of the lens structures in the edge region of the display panel.
9. A method for manufacturing a display panel is characterized by comprising the following steps:
manufacturing a light-emitting functional layer above the array substrate, wherein the light-emitting functional layer comprises a plurality of light-emitting units;
forming a light filtering function layer over the light emitting function layer, the light filtering function layer including a plurality of light filtering patterns and light shielding patterns disposed between the plurality of light filtering patterns, at least one of the light filtering patterns overlapping a corresponding one of the light emitting cells;
forming an antireflection functional layer over the light filtering functional layer, the antireflection functional layer including at least one antireflection layer; the at least one antireflection layer covers at least the light-shielding pattern.
10. A display device comprising a display panel according to any one of claims 1 to 8 or a display panel manufactured according to the method of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210588685.0A CN115050783B (en) | 2022-05-26 | 2022-05-26 | Display panel, manufacturing method thereof and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210588685.0A CN115050783B (en) | 2022-05-26 | 2022-05-26 | Display panel, manufacturing method thereof and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115050783A true CN115050783A (en) | 2022-09-13 |
| CN115050783B CN115050783B (en) | 2024-01-19 |
Family
ID=83158565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210588685.0A Active CN115050783B (en) | 2022-05-26 | 2022-05-26 | Display panel, manufacturing method thereof and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115050783B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000338476A (en) * | 1999-05-25 | 2000-12-08 | Toppan Printing Co Ltd | Color filter substrate for reflective liquid crystal display device |
| JP2001305518A (en) * | 2000-04-19 | 2001-10-31 | Toshiba Corp | Display device |
| CN1825606A (en) * | 2004-12-30 | 2006-08-30 | 东部亚南半导体株式会社 | Image sensor and method for fabricating the same |
| CN105448197A (en) * | 2016-01-04 | 2016-03-30 | 京东方科技集团股份有限公司 | Display base plate and preparation method thereof as well as display device |
| CN109785763A (en) * | 2019-03-29 | 2019-05-21 | 上海天马微电子有限公司 | Display panel, preparation method thereof and display device |
| CN110323353A (en) * | 2019-04-24 | 2019-10-11 | 昆山工研院新型平板显示技术中心有限公司 | OLED display panel and display device |
| CN111108602A (en) * | 2019-12-17 | 2020-05-05 | 京东方科技集团股份有限公司 | Method of reducing color separation of reflection of ambient light in a display panel, display device and method of manufacturing a display panel |
| CN111162110A (en) * | 2020-02-10 | 2020-05-15 | 重庆京东方显示技术有限公司 | Organic light-emitting display panel, manufacturing method thereof and display device |
| CN112038498A (en) * | 2020-08-20 | 2020-12-04 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
| CN112259695A (en) * | 2020-10-20 | 2021-01-22 | 京东方科技集团股份有限公司 | Display panel and display device |
| CN112420956A (en) * | 2020-11-18 | 2021-02-26 | 京东方科技集团股份有限公司 | Display panel, manufacturing method thereof and display device |
| CN112750962A (en) * | 2020-12-29 | 2021-05-04 | 湖北长江新型显示产业创新中心有限公司 | Display panel, manufacturing method thereof and display device |
| CN215933642U (en) * | 2021-07-30 | 2022-03-01 | 京东方科技集团股份有限公司 | Display substrate, display panel and display device |
-
2022
- 2022-05-26 CN CN202210588685.0A patent/CN115050783B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000338476A (en) * | 1999-05-25 | 2000-12-08 | Toppan Printing Co Ltd | Color filter substrate for reflective liquid crystal display device |
| JP2001305518A (en) * | 2000-04-19 | 2001-10-31 | Toshiba Corp | Display device |
| CN1825606A (en) * | 2004-12-30 | 2006-08-30 | 东部亚南半导体株式会社 | Image sensor and method for fabricating the same |
| CN105448197A (en) * | 2016-01-04 | 2016-03-30 | 京东方科技集团股份有限公司 | Display base plate and preparation method thereof as well as display device |
| CN109785763A (en) * | 2019-03-29 | 2019-05-21 | 上海天马微电子有限公司 | Display panel, preparation method thereof and display device |
| CN110323353A (en) * | 2019-04-24 | 2019-10-11 | 昆山工研院新型平板显示技术中心有限公司 | OLED display panel and display device |
| CN111108602A (en) * | 2019-12-17 | 2020-05-05 | 京东方科技集团股份有限公司 | Method of reducing color separation of reflection of ambient light in a display panel, display device and method of manufacturing a display panel |
| CN111162110A (en) * | 2020-02-10 | 2020-05-15 | 重庆京东方显示技术有限公司 | Organic light-emitting display panel, manufacturing method thereof and display device |
| CN112038498A (en) * | 2020-08-20 | 2020-12-04 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
| CN112259695A (en) * | 2020-10-20 | 2021-01-22 | 京东方科技集团股份有限公司 | Display panel and display device |
| CN112420956A (en) * | 2020-11-18 | 2021-02-26 | 京东方科技集团股份有限公司 | Display panel, manufacturing method thereof and display device |
| CN112750962A (en) * | 2020-12-29 | 2021-05-04 | 湖北长江新型显示产业创新中心有限公司 | Display panel, manufacturing method thereof and display device |
| CN215933642U (en) * | 2021-07-30 | 2022-03-01 | 京东方科技集团股份有限公司 | Display substrate, display panel and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115050783B (en) | 2024-01-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109285868B (en) | OLED display panel and OLED display device | |
| CN110459581B (en) | Display panel and display device | |
| CN109785763B (en) | Display panel, preparation method thereof and display device | |
| WO2018000830A1 (en) | Touch substrate and manufacturing method therefor, and touch display device | |
| CN111952481B (en) | Display panel and electronic device | |
| KR102635472B1 (en) | Display device and manufacturing the same | |
| CN112635535A (en) | Display module, preparation method thereof and display device | |
| US20240062715A1 (en) | Display panel and display apparatus | |
| CN110429205B (en) | Display panel and display device | |
| CN110320702B (en) | Substrate, preparation method thereof and display panel | |
| US20240040912A1 (en) | Display panel and display device | |
| US20240032397A1 (en) | Display panel, manufacturing method and electronic device | |
| US20230255091A1 (en) | Cover plate and display device | |
| US11616213B2 (en) | Display panel and display device having light extraction structure | |
| CN113745433A (en) | Display panel | |
| CN115066753A (en) | Grain identification module and display device | |
| CN115050783B (en) | Display panel, manufacturing method thereof and display device | |
| CN217903141U (en) | Display panel and display device | |
| CN111477762A (en) | Display panel, preparation method thereof and electroluminescent display device | |
| CN111025742A (en) | Display panel and display device | |
| US20220317509A1 (en) | Light shielding element substrate and display device | |
| US11917890B2 (en) | Display panel and display device | |
| CN116326246A (en) | Display substrate and display device | |
| CN115498125A (en) | Display panel and display device | |
| CN220402269U (en) | Display apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |