CN111584559B - Display panel and electronic device - Google Patents

Display panel and electronic device Download PDF

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Publication number
CN111584559B
CN111584559B CN202010381418.7A CN202010381418A CN111584559B CN 111584559 B CN111584559 B CN 111584559B CN 202010381418 A CN202010381418 A CN 202010381418A CN 111584559 B CN111584559 B CN 111584559B
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light
light conversion
color
display panel
layer
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CN202010381418.7A
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CN111584559A (en
Inventor
潘杰
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Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
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    • 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
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/122—Pixel-defining structures or layers, e.g. banks
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133512—Light shielding layers, e.g. black matrix
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • 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
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/121—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements
    • 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
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/126—Shielding, e.g. light-blocking means over the TFTs
    • 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]
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133614—Illuminating devices using photoluminescence, e.g. phosphors illuminated by UV or blue light

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Geometry (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

The embodiment of the application discloses display panel and electronic equipment, wherein, this display panel includes: a plurality of pixels, wherein the pixels comprise: a light emitting layer; a light conversion layer disposed on a light emitting side of the light emitting layer, the light conversion layer including: a first light conversion section for converting a color of light emitted from the light emitting layer into a first color; a second light conversion section for converting a color of light emitted from the light emitting layer into a second color; a third light conversion section for converting a color of light emitted from the light emitting layer into a third color; and the shielding layer is arranged on the light emitting side of the third light conversion part and used for shielding the light of the third color with the wavelength within a set range, and the set range is smaller than a preset wavelength range. The display panel and the electronic equipment can improve the utilization rate of the light source.

Description

Display panel and electronic device
Technical Field
The application relates to the technical field of display, in particular to a display panel and electronic equipment.
Background
Short-wave blue light has relatively high-energy light. The high-energy short-wave blue light can penetrate through the crystalline lens and the vitreous body of human eyes, directly reach the most important macular area of retina, damage the retina photoreceptor cells, and accelerate the oxidation of the cells in the macular area, so the high-energy short-wave blue light is called as dangerous visible light.
The wavelength of the high-energy short-wave blue light is 400nm-480nm, only part of the wavelength range belongs to the completely harmful blue light, and the light in the rest wavelength range is beneficial to the human body. However, the current display panel completely blocks blue light within the wavelength range, so that the blue light beneficial to a human body is wasted, and the utilization rate of a light source is reduced.
Disclosure of Invention
The embodiment of the application provides a display panel and an electronic device, which can avoid the waste of blue light beneficial to a human body and improve the utilization rate of a light source.
An embodiment of the present application provides a display panel, including: a plurality of pixels, wherein the pixels comprise:
a light emitting layer;
a light conversion layer disposed on a light-emitting side of the light-emitting layer, the light conversion layer including:
a first light conversion section for converting a color of light emitted from the light emitting layer into a first color;
a second light conversion section for converting a color of light emitted from the light emitting layer into a second color;
a third light conversion section for converting a color of light emitted from the light emitting layer into a third color;
the shielding layer is arranged on the light emitting side of the third light conversion part and used for shielding the light of the third color with the wavelength within a set range, and the set range is smaller than a preset wavelength range.
In the display panel of this embodiment, the shielding layer is a one-dimensional photonic crystal.
In the display panel of this embodiment, the shielding layer includes at least one shielding film, and the shielding film includes a first sub-layer and a second sub-layer, where the first sub-layer is close to the third light conversion portion side, and the second sub-layer is disposed on the light exit side of the first sub-layer, and a refractive index of a material of the second sub-layer is greater than a refractive index of a material of the first sub-layer.
In the display panel of the present embodiment, the material of the shielding layer includes at least five shielding films.
In the display panel of the embodiment, the material of the shielding layer includes SiO 2 At least one of SiN, si, ITO, IGZO and ZnO.
In the display panel of this embodiment, the display panel further includes a cover plate, the cover plate is disposed on the light-emitting side of the light conversion layer, and an area of an orthogonal projection of the shielding layer on the cover plate is greater than or equal to an area of an orthogonal projection of the third light conversion portion on the cover plate.
In the display panel of the embodiment, the thickness of the shielding layer ranges from 0.5um to 1.5um.
In the display panel of the present embodiment, the setting range is 400nm to 430nm, and the third color is blue.
In the display panel of the present embodiment, a material of at least one of the first light conversion portion, the second light conversion portion, and the third light conversion portion includes a light conversion material.
The embodiment of the application further provides an electronic device which comprises any one of the display panels.
The display panel and the electronic device of the embodiment of the application comprise a plurality of pixels, wherein the pixels comprise: a light emitting layer; a light conversion layer disposed on a light emitting side of the light emitting layer, the light conversion layer including: a first light conversion section for converting a color of light emitted from the light emitting layer into a first color; a second light conversion section for converting a color of light emitted from the light emitting layer into a second color; a third light conversion section for converting a color of light emitted from the light emitting layer into a third color; the shielding layer is arranged on the light emitting side of the third light conversion part and used for shielding the light of the third color with the wavelength within a set range, and the set range is smaller than a preset wavelength range; the shielding layer shields the light of the third color with the wavelength within the set range, so that the shielding layer shields the high-energy blue light harmful to the human body, and the high-energy blue light beneficial to the human body is not shielded, thereby improving the utilization rate of the light source.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below 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 structural diagram of a conventional display panel.
Fig. 2 is a schematic structural diagram of a display panel according to an embodiment of the present application.
Fig. 3 is a schematic structural diagram of a display panel according to another embodiment of the present application.
Fig. 4 is a schematic structural diagram of a shielding layer according to an embodiment of the present application.
Fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all 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 application.
In the description of the present application, 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," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. 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 application, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
As shown in fig. 1, the conventional display panel includes a substrate 11, a light-emitting layer 12, a first light conversion portion 13, a second light conversion portion 14, a third light conversion portion 15, and a cover 16. The light-emitting layer 12 is for providing white light; the first light conversion portion 13, the second light conversion portion 14, and the third light conversion portion 15 are a red light conversion portion, a green light conversion portion, and a blue light conversion portion, respectively. The light emitting direction of the display panel is shown by the arrow in fig. 1.
Referring to fig. 2, fig. 2 is a schematic structural diagram of a display panel according to an embodiment of the present application.
As shown in fig. 2, the display panel 10 includes a plurality of pixels 101, fig. 2 illustrates a single pixel 101 as an example, each pixel 101 includes a light emitting layer 12, a light conversion layer 102, and a shielding layer 17, and the display panel 10 may further include a substrate 11 and a cover 16.
The material of the substrate base plate 11 may be glass or a flexible material.
The light emitting layer 12 may be used to provide white light. In one embodiment, the light emitting layer 12 is an organic light emitting diode, but the light emitting layer 12 is not limited thereto.
The light conversion layer 102 is disposed on the light emitting side of the light emitting layer 12, and the light conversion layer 102 includes: a first light conversion section 13, a second light conversion section 14, and a third light conversion section 15. A first light conversion section 13 for converting the color of light emitted from the light emitting layer 12 into a first color; a second light conversion section 14 for converting the color of the light emitted from the light emitting layer 12 into a second color; a third light conversion portion 15 for converting the color of the light emitted from the light emitting layer 12 into a third color; in one embodiment, the first light conversion portion 13, the second light conversion portion 14, and the third light conversion portion 15 are a red light conversion portion, a green light conversion portion, and a blue light conversion portion, respectively. Wherein the light emitting efficiency is improved, the material of at least one of the first light conversion part 13, the second light conversion part 14, and the third light conversion part 15 may include a light conversion material. The light conversion material has a conversion effect from high energy to low energy, can absorb light with shorter wavelength and convert the light into light with longer wavelength, thereby improving the luminous efficiency and prolonging the service life of the display panel. In an embodiment, the light conversion material may include at least one of quantum dots, fluorescent materials, phosphorescent materials, and color-resist materials. In one embodiment, the materials of the first light conversion portion 13, the second light conversion portion 14 and the third light conversion portion 15 are all color-resist materials, for example, the materials of the first light conversion portion 13, the second light conversion portion 14 and the third light conversion portion 15 are red color resist, green color resist and blue color resist, respectively. Of course, the light conversion material is not particularly limited thereto. Of course, the light conversion layer 102 may also include other light conversion portions.
The shielding layer 17 is disposed on the light emitting side of the third light conversion portion 15, and is configured to shield the light of the third color with a wavelength within a set range, where the set range is smaller than the preset wavelength range. The preset wavelength range is 400nm-480nm. In one embodiment, the third color light is blue light. Wherein the predetermined range may be 400nm-430nm. The blue light with the wavelength of 400nm-430nm generally causes damage to human eyes. The blue light with the wavelength of 450 to 480 nanometers has the function of adjusting biological rhythm, and the sleep, the emotion, the memory and the like are all related to the blue light, so that the blue light is beneficial to the human body. In one embodiment, the shielding layer 17 is used to shield light of a third color with a wavelength within 400nm to 430nm, that is, the shielding layer 17 shields high-energy blue light harmful to a human body, and does not shield high-energy blue light beneficial to the human body, so that the utilization rate of a light source is improved while avoiding damage to human eyes.
In one embodiment, to further improve the shielding effect, the shielding layer 17 is a one-dimensional photonic crystal. One-dimensional photonic crystals are typically formed by alternately stacking light-transmissive materials having high and low refractive indices. As shown in fig. 3, in order to further improve the shielding effect, the shielding layer 17 includes at least one shielding film 103, and the shielding film 103 includes a first sub-layer 171 and a second sub-layer 172, where the first sub-layer 171 is close to the third light conversion portion 15 side, and the second sub-layer 172 is disposed on the light emitting side of the first sub-layer 171. Wherein the refractive index of the material of the second sub-layer 172 is larger than the refractive index of the material of the first sub-layer 172. In one embodiment, the shielding film 103 may include Si (refractive index 4.11) and SiO 2 (refractive index 1.5) and TiO 2 And MgF 2 And composite film layers of Si and KCl. Wherein the first and second sub-layers 171, 172 differ in thickness. The shielding effect of the shielding film can be adjusted by controlling the thickness ratio of the first sub-layer 171 and the second sub-layer 172. By adopting materials with different refractive indexes and thickness difference, photonic crystals with different forbidden band widths and defect states can be realized. Wherein, in order to further improve the shielding effectThe material of the shielding layer 17 includes at least five shielding films 103. The material of the shielding layer 17 comprises SiO 2 SiN, si, ITO, IGZO, and ZnO, and the material of the shield layer 17 is not limited thereto. The one-dimensional photonic crystal can be manufactured by methods such as etching, thermal evaporation, electron beam, magnetron sputtering, PECVD and the like. The photonic crystal has a periodic dielectric structure with a photonic band gap, the photonic crystal band gap can be generated by alternately arranging materials with high refractive index and low refractive index to form the periodic structure, the photonic crystal can modulate electromagnetic waves with corresponding wavelengths, when the electromagnetic waves are transmitted in the photonic crystal structure, the electromagnetic waves are modulated due to Bragg scattering, the energy of the electromagnetic waves forms an energy band structure, a band gap, namely a Photonic Band Gap (PBG), is formed between energy bands, and photons with all energy in the photonic band gap cannot enter the photonic crystal. The intervals between the periodically arranged low-refractive-index sites are the same, so that the photonic crystal at a certain distance only generates an energy band effect on light waves with a certain frequency, namely, the light with the frequency is blocked by the photonic crystal and cannot be continuously transmitted.
In other embodiments, the material of the shielding layer 17 is not limited to a one-dimensional photonic crystal. Preferably, the thickness of the shielding layer 17 ranges from 0.5um to 1.5um in order to further improve the shielding effect. In one embodiment, the area of the orthographic projection of the shielding layer 17 on the cover plate 16 is equal to the area of the orthographic projection of the third light conversion part 15 on the cover plate 16. In one embodiment, the sum of the thickness of the third light conversion portion 15 and the thickness of the shielding layer 17 is equal to the thickness of the first light conversion portion 13. In one embodiment, in order to improve the display effect and prevent color shift, the thickness of the third light conversion part 15 is smaller than that of the first light conversion part 13, and the thickness of the first light conversion part 13 is equal to that of the second light conversion part 14. In one embodiment, the sum of the thickness of the third light conversion portion 15 and the thickness of the shielding layer 17 is equal to the thickness of the first light conversion portion 13. In another embodiment, as shown in fig. 4, an area of an orthogonal projection of the shielding layer 17 on the cover plate 16 is larger than an area of an orthogonal projection of the third light conversion part 15 on the cover plate 16. For example, the shielding layer 17 may cover the third light conversion part 15, and may further cover at least one of the second light conversion part 14 and the first light conversion part 13.
The display panel further includes a cover plate 16, the cover plate 16 is disposed on the light-emitting side of the light-converting layer 102, and the cover plate 16 is made of glass. The display panel of the present embodiment may be an organic light emitting diode display panel or a liquid crystal display panel, and the light emitting direction of the display panel is as shown by an arrow in fig. 2 or fig. 4, that is, the display panel may be a top-emission display panel.
The embodiment of the application further provides an electronic device, the display panel can be integrated in the electronic device, and the electronic device can be an intelligent wearable device, a smart phone, a tablet computer, a smart television and the like.
Referring to fig. 5, fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure. The electronic device 100 may include a display panel 10, a control circuit 20, and a case 30. It should be noted that the electronic device 100 shown in fig. 5 is not limited to the foregoing, and may further include other devices, such as a camera, an antenna structure, a thread unlocking module, and the like.
The display panel 10 is disposed on the housing 30.
In some embodiments, the display panel 10 may be fixed to the housing 30, and the display panel 10 and the housing 30 form a closed space to accommodate the control circuit 20 and the like.
In some embodiments, the housing 30 may be made of a flexible material, such as a plastic housing or a silicone housing.
The control circuit 20 is installed in the housing 30, the control circuit 20 may be a motherboard of the electronic device 100, and one, two or more functional components of a battery, an antenna structure, a microphone, a speaker, an earphone interface, a universal serial bus interface, a camera, a distance sensor, an ambient light sensor, a receiver, a processor, and the like may be integrated on the control circuit 20.
The display panel 10 is mounted in the housing 30, and the display panel 10 is electrically connected to the control circuit 20 to form a display surface of the electronic device 100. The display panel 10 may include a display area and a non-display area. The display area may be used to display a screen of the electronic device 100 or provide a user with touch control. The non-display area may be used to set various functional components.
The display panel and the electronic device of the embodiment of the application comprise a plurality of pixels, wherein the pixels comprise: a light emitting layer; a light conversion layer disposed on a light emitting side of the light emitting layer, the light conversion layer including: a first light conversion section for converting a color of light emitted from the light emitting layer into a first color; a second light conversion section for converting a color of light emitted from the light emitting layer into a second color; a third light conversion section for converting a color of light emitted from the light emitting layer into a third color; the shielding layer is arranged on the light emitting side of the third light conversion part and used for shielding the light of the third color with the wavelength within a set range, and the set range is smaller than a preset wavelength range; the shielding layer shields the light with the wavelength in the third color within the set range, so that the high-energy blue light harmful to the human body is shielded by the shielding layer, and the high-energy blue light beneficial to the human body is not shielded, thereby improving the utilization rate of the light source.
The display panel and the electronic device provided in the embodiments of the present application are described in detail above, and the principles and embodiments of the present application are described herein by applying specific examples, and the description of the embodiments is only provided to help understanding the present application. Meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims (8)

1. A display panel, comprising: a plurality of pixels, wherein the pixels comprise:
a light emitting layer;
a light conversion layer disposed on a light emitting side of the light emitting layer, the light conversion layer including:
a first light conversion section for converting a color of light emitted from the light emitting layer into a first color;
a second light conversion section for converting a color of light emitted from the light emitting layer into a second color;
a third light conversion section for converting a color of light emitted from the light emitting layer into a third color;
the shielding layer is arranged on the light emitting side of the third light conversion part and used for shielding the light of the third color with the wavelength within a set range, and the set range is smaller than a preset wavelength range;
the shielding layer comprises at least five shielding films, each shielding film comprises a first sublayer and a second sublayer, the first sublayer is close to the third light conversion part side, the second sublayer is arranged on the light emitting side of the first sublayer, and the refractive index of the material of the second sublayer is larger than that of the material of the first sublayer.
2. The display panel of claim 1, wherein the shielding layer is a one-dimensional photonic crystal.
3. The display panel according to claim 1, wherein the material of the shielding layer comprises SiO 2 At least one of SiN, si, ITO, IGZO and ZnO.
4. The display panel according to claim 1, wherein the display panel further comprises a cover plate disposed on a light-emitting side of the light conversion layer, and an area of an orthographic projection of the shielding layer on the cover plate is greater than or equal to an area of an orthographic projection of the third light conversion portion on the cover plate.
5. The display panel of claim 1, wherein the thickness of the shielding layer is in the range of 0.5um to 1.5um.
6. The display panel according to claim 1, wherein the predetermined range is 400nm to 430nm, and the third color is blue.
7. The display panel according to claim 1,
a material of at least one of the first light conversion portion, the second light conversion portion, and the third light conversion portion includes a light conversion material.
8. An electronic device characterized by comprising the display panel according to any one of claims 1 to 7.
CN202010381418.7A 2020-05-08 2020-05-08 Display panel and electronic device Active CN111584559B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010381418.7A CN111584559B (en) 2020-05-08 2020-05-08 Display panel and electronic device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010381418.7A CN111584559B (en) 2020-05-08 2020-05-08 Display panel and electronic device

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Publication Number Publication Date
CN111584559A CN111584559A (en) 2020-08-25
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CN108153041A (en) * 2018-01-18 2018-06-12 京东方科技集团股份有限公司 A kind of display panel, backlight module and display device
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