CN109785748B - Display panel and display device - Google Patents
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- CN109785748B CN109785748B CN201910219005.6A CN201910219005A CN109785748B CN 109785748 B CN109785748 B CN 109785748B CN 201910219005 A CN201910219005 A CN 201910219005A CN 109785748 B CN109785748 B CN 109785748B
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Abstract
The embodiment of the application provides a display panel and display device, and the display panel includes: the display device comprises a first display substrate, a second display substrate and a functional layer, wherein the first display substrate and the second display substrate are arranged oppositely; the functional layer is positioned on the display surface of the display panel and comprises at least three film layers, and the refractive indexes of the two adjacent film layers are different and are used for enabling light with different wavelengths to selectively penetrate through. The display panel that this application embodiment provided can make the radiant energy of blue light reduce by a wide margin, avoids the blue light transmission to cause the injury to eyes, simultaneously, also can cut off the light of appointed wavelength, improves display panel's colour gamut, improves display panel's optical property, and then improves user's use and experiences.
Description
Technical Field
The application relates to the technical field of display, in particular to a display panel and a display device.
Background
Along with intelligent terminal's continuous development, people use intelligent terminal's length of time longer and longer, and the screen also increases along with it to the injury of eyes, especially, at virtual reality and augmented reality display technology field, the user need watch the screen for a long time near ground, and the blue light radiation that the screen produced further increases to the injury of eyes to, current intelligent terminal's screen colour gamut is generally lower, has influenced user's use and has experienced.
Disclosure of Invention
This application is directed against the shortcoming of current mode, provides a display panel and display device for the blue light radiation that the screen that solves prior art existence produced causes the injury to eyes easily, and the lower problem of colour gamut.
In a first aspect, an embodiment of the present application provides a display panel, including: the display device comprises a first display substrate, a second display substrate and a functional layer, wherein the first display substrate and the second display substrate are arranged oppositely;
the functional layer is positioned on the display surface of the display panel and comprises at least three film layers, and the refractive indexes of the two adjacent film layers are different and are used for enabling light with different wavelengths to selectively penetrate through.
Optionally, the display panel further comprises: the first polaroid is positioned on one side of the second display substrate, which is far away from the first display substrate;
the first display substrate includes: the first substrate base plate is positioned on the anode, the color light-emitting layer and the cathode of the first substrate base plate;
the functional layer is positioned on one side of the second display substrate close to the color light-emitting layer;
or the functional layer is positioned between the second display substrate and the first polaroid;
or the functional layer is positioned on one side of the first polaroid, which is far away from the color light-emitting layer.
Optionally, the display panel further comprises: the first polaroid is positioned on one side of the second display substrate, which is far away from the first display substrate;
the first display substrate includes: a first substrate base plate, an anode, a white light emitting layer and a cathode which are positioned on the first substrate base plate;
the second display substrate includes: the second substrate base plate is positioned on the color film layer on one side of the second substrate base plate close to the white light-emitting layer;
the functional layer is positioned between the second substrate base plate and the color film layer;
or the functional layer is positioned between the second substrate base plate and the first polaroid;
or the functional layer is positioned on one side of the first polaroid far away from the color film layer.
Optionally, the display panel further comprises: a liquid crystal layer and a first polarizer;
the first display substrate is an array substrate, the second display substrate is a color film substrate, the liquid crystal layer is positioned between the array substrate and the color film substrate, and the first polarizer is positioned on one side of the color film substrate, which is far away from the array substrate;
the color film substrate comprises: the substrate base plate is positioned on the color film layer on one side of the substrate base plate close to the array base plate;
the functional layer is positioned between the substrate and the color film layer;
or the functional layer is positioned between the color film substrate and the first polaroid;
or the functional layer is positioned on one side of the first polaroid far away from the color film layer.
Optionally, the functional layer is configured to cut off light having a wavelength between 435 nm and 440 nm, and light having a wavelength between 560 nm and 600 nm.
Optionally, the functional layer comprises: a plurality of first film layers and a plurality of second film layers;
the first film layers and the second film layers are alternately stacked in sequence, and the refractive indexes of the first film layers and the second film layers are different.
Optionally, the thicknesses of the plurality of first film layers are the same, and the thicknesses of the plurality of second film layers are the same.
Optionally, the material of the first film layer comprises: silicon dioxide.
Optionally, the material of the second film layer comprises: one of titanium dioxide, silicon nitride or aluminum oxide.
In a second aspect, an embodiment of the present application provides a display device, including: the display panel as provided in the above first aspect.
The beneficial technical effects brought by the technical scheme provided by the embodiment of the application comprise:
the display panel comprises a display panel body, wherein a display surface of the display panel body is provided with a functional layer, the functional layer can realize selective transmission of light with different wavelengths through at least three layers of film layers, and the refractive indexes of two adjacent film layers are different; meanwhile, the functional layer can intercept light influencing the color gamut of the display panel, so that the color gamut of the display panel is improved, the optical performance of the display panel is improved, and the use experience of a user is improved.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a color organic light emitting display panel according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a white organic light emitting display panel according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a liquid crystal display panel according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a functional layer provided in this embodiment;
fig. 6 is a schematic view of light transmittance distributions of different film amounts provided in this embodiment of the present application;
FIG. 7 is a graph illustrating the effect of different film numbers on the spectrum provided by an embodiment of the present application;
FIG. 8 is a graph of the number of layers versus the amount of radiation energy that is reduced according to an embodiment of the present disclosure;
fig. 9 is a schematic diagram of a color gamut lifting ratio of different film layer numbers provided in an embodiment of the present application;
FIG. 10 is a graph of light transmittance distribution for different film amounts according to an embodiment of the present disclosure;
fig. 11 is a schematic view of another color gamut enhancement by different film layer numbers according to an embodiment of the present disclosure.
Description of reference numerals:
101-a first display substrate, 102-a second display substrate, 103-a functional layer, 104-a first polarizer, 105-a liquid crystal layer, 1011-a first substrate, 1012-an anode, 1013-a color light emitting layer, 1014-a cathode, 1021-a second substrate, 1015-a white light emitting layer, 1022-a color film layer, 201-an array substrate, 202-a color film substrate, 2021-a substrate, 1031-a first film layer, 1032-a second film layer.
Detailed Description
Reference will now be made in detail to the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar parts or parts having the same or similar functions throughout. In addition, if a detailed description of the known art is not necessary for illustrating the features of the present application, it is omitted. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
It will be understood by those within the art that, unless otherwise defined, all terms (including 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. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.
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, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
The terms referred to in this application will first be introduced and explained:
virtual Reality (VR): a computer simulation system capable of creating and experiencing virtual worlds utilizes computers to generate a simulation environment, which is a system simulation of multi-source information fusion, interactive three-dimensional dynamic views and entity behaviors, and enables users to be immersed in the environment.
Augmented Reality (AR): a technique for calculating the position and angle of camera image in real time and adding corresponding image, video and 3D models.
Blue light: light having a wavelength between 400 nm and 480 nm and having a relatively high energy. Blue light in this wavelength can increase the amount of macular toxin in the eye and seriously harm eye health.
At present, in order to avoid damage caused by blue light, the screen is generally subjected to blue light prevention film pasting treatment to reduce the transmission of the blue light. However, the inventor of the present application finds that the current blue light prevention film pasting technology is uneven, and increases the thickness of the screen, which is not favorable for lightening the terminal device. Simultaneously, prevent that blue light pad pasting function singleness only has the effect to blue light radiation, and it is not good to the colour gamut promotion effect of screen.
The application provides a display panel and a display device, which aim to solve the technical problems in the prior art.
The following describes the technical solutions of the present application and how to solve the above technical problems with specific embodiments.
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present application, and as shown in fig. 1, the display panel includes: a first display substrate 101 and a second display substrate 102 which are arranged oppositely, and a functional layer 103; the functional layer 103 is located on the display surface of the display panel, and includes at least three layers (a specific layer structure is not shown in the figure), and the refractive indexes of two adjacent layers are different for selectively transmitting light with different wavelengths.
The display panel in the embodiment of the application is provided with the functional layer 103 on the display surface, the functional layer 103 can realize selective transmission of light with different wavelengths through at least three layers of film layers, and the refractive indexes of two adjacent layers of film layers are different, when the light is emitted from the display surface of the display panel, the functional layer 103 can intercept blue light, so that the damage of the blue light can be effectively reduced, the blue light belongs to energy waves, the more the blue light is intercepted, the smaller the blue light radiation energy is, and the damage of the blue light transmission to eyes can be avoided; meanwhile, the functional layer 103 can intercept light affecting the color gamut of the display panel, so that the color gamut of the display panel is improved, the optical performance of the display panel is improved, and the use experience of a user is improved.
Based on the display panel provided by the above embodiments, the embodiments of the present application will be described in further detail with reference to the accompanying drawings.
In a possible implementation manner, the display panel provided in this embodiment of the present application may be a color organic light emitting display panel, and fig. 2 is a schematic structural diagram of the color organic light emitting display panel provided in this embodiment of the present application, as shown in fig. 2, the color organic light emitting display panel includes: the first polarizer 104 is disposed on a side of the second display substrate 102 away from the first display substrate 101. The first display substrate 101 includes: a first base substrate 1011, an anode 1012, a color light emitting layer 1013, and a cathode 1014 on the first base substrate. In a specific implementation, the second display substrate 102 is a cover plate, such as a glass substrate; the color light emitting layer 1013 includes a red light emitting layer, a green light emitting layer, and a blue light emitting layer.
The functional layer 103 is located on the side of the second display substrate 102 close to the color light emitting layer 1013; or, the functional layer 103 is located between the second display substrate 102 and the first polarizer 104; alternatively, the functional layer 103 is located on the side of the first polarizer 104 away from the color light emitting layer 1013. Fig. 2 shows only the case where the functional layer 103 is located on the side of the second display substrate 102 close to the color light emitting layer 1013.
It should be noted that the display panel provided in the embodiment of the present application may be a color organic light emitting display panel, in which a color light emitting layer 1013 is disposed between an anode 1012 and a cathode 1014 of the color organic light emitting display panel. The functional layer 103 is located on the display surface of the color organic light emitting display panel and may be located inside the color organic light emitting display panel, specifically, as shown in fig. 2, the functional layer 103 is located on one side of the second display substrate 102 close to the color light emitting layer 1013, so that the thickness of the color organic light emitting display panel may be effectively reduced, and portability of the intelligent terminal device is facilitated.
Certainly, the functional layer 103 may also be located on the side of the first polarizer 104 away from the color light emitting layer 1013, that is, the functional layer 103 may be located outside the color organic light emitting display panel, and at this time, the functional layer 103 may be attached to the first polarizer 104 in a separate attaching manner, which is beneficial to the assembly of the functional layer 103.
In another possible implementation manner, the display panel provided in this embodiment of the present application may also be a white organic light emitting display panel, and fig. 3 is a schematic structural diagram of the white organic light emitting display panel provided in this embodiment of the present application, as shown in fig. 3, the white organic light emitting display panel includes: the first polarizer 104 is disposed on a side of the second display substrate 102 away from the first display substrate 101. The first display substrate 101 includes: a first substrate 1011, an anode 1012, a white light emitting layer 1015 and a cathode 1014 positioned thereon. The specific arrangement of the anode 1012, the white light-emitting layer 1015 and the cathode 1014 is similar to that of the prior art and will not be described herein. In addition, a hole injection layer and a hole transport layer may be further disposed between the anode 1012 and the white light emitting layer 1015, an electron injection layer and an electron transport layer may be further disposed between the white light emitting layer 1015 and the cathode 1014, and the specific arrangement manner of the hole injection layer, the hole transport layer, the electron injection layer and the electron transport layer is similar to that of the prior art, and will not be described herein again.
The second display substrate 102 includes: a second substrate 1021, and a color film layer 1022 located on a side of the second substrate 1021 near the white light emitting layer 1015. In a specific implementation, the second display substrate 102 further includes a black matrix (not shown) located on a side of the second substrate 1021 near the white light emitting layer 1015, and the specific arrangement manner of the black matrix and the color film layer 1022 is similar to that of the prior art, and is not described herein again. The color film layer 1022 includes a red color resist, a green color resist, and a blue color resist.
The functional layer 103 is located between the second substrate 1021 and the color film layer 1022; or, the functional layer 103 is located between the second substrate 1021 and the first polarizer 104; or, the functional layer 103 is located on a side of the first polarizer 104 away from the color film layer 1022. Only the case where the functional layer 103 is located between the second substrate 1021 and the color film layer 1022 is shown in fig. 3.
It should be noted that the display panel provided in the embodiment of the present application may be a white organic light emitting display panel, where the white organic light emitting display panel emits white light through the white light emitting layer 1015, and presents light of a specified color through the color film layer 1022. The functional layer 103 is located on the display surface of the white organic light emitting display panel and may be located inside the white organic light emitting display panel, specifically, as shown in fig. 3, the functional layer 103 is located between the second substrate 1021 and the color film layer 1022, so that the thickness of the white organic light emitting display panel may be effectively reduced, and portability of the intelligent terminal device may be facilitated.
Certainly, the functional layer 103 may also be located on the side of the first polarizer 104 away from the color film layer 1022, that is, the functional layer 103 may be located outside the white organic light emitting display panel, and at this time, the functional layer 103 may be attached to the first polarizer 104 in a separate attaching manner, which is favorable for the assembly of the functional layer 103.
In another possible implementation manner, the display panel provided in the embodiment of the present application may also be a liquid crystal display panel, and fig. 4 is a schematic structural diagram of the liquid crystal display panel provided in the embodiment of the present application, as shown in fig. 4, the liquid crystal display panel includes: a liquid crystal layer 105 and a first polarizer 104; the first display substrate is an array substrate 201, the second display substrate is a color film substrate 202, the liquid crystal layer 105 is located between the array substrate 201 and the color film substrate 202, and the first polarizer 104 is located on one side of the color film substrate 202 away from the array substrate 201. The color filter substrate 202 includes: a substrate 2021, and a color film layer 1022 located on one side of the substrate 2021 close to the array substrate 201. The specific structures of the array substrate 201 and the color filter substrate 202 are similar to those of the prior art, and are not described herein again.
The functional layer 103 is located between the base substrate 2021 and the color film layer 1022; or, the functional layer 103 is located between the color film substrate 202 and the first polarization 104; or, the functional layer 103 is located on a side of the first polarizer 104 away from the color film layer 1022. Fig. 4 only shows the case where the functional layer 103 is located between the base substrate 2021 and the color film layer 1022.
It should be noted that the display panel provided in the embodiment of the present application may be a liquid crystal display panel, and the functional layer 103 is located on the display surface of the liquid crystal display panel and may be located inside the liquid crystal display panel, specifically, as shown in fig. 4, the functional layer 103 is located between the substrate 2021 and the color film layer 1022, so that the thickness of the liquid crystal display panel may be effectively reduced, and portability of the intelligent terminal device is facilitated.
Certainly, the functional layer 103 may also be located on the side of the first polarizer 104 away from the color film layer 1022, that is, the functional layer 103 may be located outside the liquid crystal display panel, and at this time, the functional layer 103 may be attached to the first polarizer 104 in a separate attaching manner, which is beneficial to the assembly of the functional layer 103.
The display panel provided by the embodiment of the application can be a color organic light-emitting display panel, a white organic light-emitting display panel and a liquid crystal display panel, and the functional layer can be positioned inside any display panel or attached to the outside of the display panel in a single attaching mode. The functional layer can see through to the light selectivity of different wavelength for the radiant energy of blue light reduces by a wide margin, avoids the blue light transmission to cause the injury to eyes, simultaneously, also can intercept the light that influences the display panel colour gamut, improves display panel's optical property, improves user's use and experiences.
Optionally, the functional layer 103 is configured to cut off light having a wavelength between 435 nm and 440 nm, and light having a wavelength between 560 nm and 600 nm.
It should be noted that the wavelength of the blue light is between 400 nm and 480 nm, and the blue light has relatively high energy, wherein the blue light between 400 nm and 440 nm is harmful to the eye, and especially the blue light between 435 nm and 440 nm is extremely harmful to the eye when being viewed at a close distance for a certain time. The functional layer 103 provided by the embodiment of the application can cut off blue light with a wavelength of 435 nm to 440 nm, so that the blue light in the waveband can be prevented from being transmitted, and the damage to eyes can be reduced.
In addition, light with the wavelength of 560 nanometers to 600 nanometers can be cut off by the functional layer 103 provided by the embodiment of the application, and the light with the wavelength of 560 nanometers to 600 nanometers is mainly red and green light, so that the color gamut of the display panel is influenced, the light in the range is intercepted, the purer green light and red light is facilitated, the color gamut of the display panel can be improved, and the use experience of a user is improved.
Referring to the drawings, taking the functional layer 103 including four film layers as an example, a film layer structure of the functional layer 103 is specifically described below, fig. 5 is a schematic structural diagram of a functional layer provided in this embodiment, as shown in fig. 5, the functional layer 103 includes: a plurality of first film layers 1031 and a plurality of second film layers 1032. The first film 1031 and the second film 1032 are alternately stacked in sequence, and the refractive indexes of the first film 1031 and the second film 1032 are different.
In specific implementation, the thicknesses of the first film 1031 and the second film 1032 are set according to practical application conditions, so that the functional layer 103 cuts off blue light with a wavelength of 435 nm to 440 nm, and can cut off light with a wavelength of 560 nm to 600 nm while cutting off harmful blue light, thereby improving the color gamut of the display panel and the display effect of the display panel.
Optionally, the thicknesses of the plurality of first film layers 1031 are the same, and the thicknesses of the plurality of second film layers 1032 are the same.
Optionally, the material of the first film layer 1031 includes: silicon dioxide.
Optionally, the material of second film layer 1032 includes: one of titanium dioxide, silicon nitride or aluminum oxide.
It should be noted that the refractive index of the first film 1031 may be smaller than the refractive index of the second film 1032, and the materials of the first film 1031 and the second film 1032 satisfy the deposition process conditions and reach the corresponding thicknesses. The first film 1031 may be made of silicon dioxide, and the second film 1032 may be made of one of titanium dioxide, silicon nitride, or aluminum oxide.
In practical applications, the bottom layer of the functional layer 103 may be the first film 1031 with a lower refractive index, or the second film 1032 with a higher refractive index, and the positions and thicknesses of the first film 1031 and the second film 1032 may be selected according to practical application conditions, so as to cut off blue light, improve the color gamut of the display panel, and improve the display effect.
To further illustrate the feasibility of the solution provided in the embodiment of the present application, the functional layer 103 in the embodiment of the present application uses silicon dioxide (SiO) as the material of the first film layer2) The second film layer is made of aluminum oxide (Al)2O3) As a mimetic material, among others, SiO2And Al2O3For the alternate stacking arrangement, simulation analysis is performed below on different stacked film layers, respectively.
When SiO is present2And Al2O3When the number of the alternately stacked film layers is 4, the bottommost layer is SiO2In the upper order being Al2O3，SiO2And Al2O3The corresponding thicknesses of the film layers from bottom to top are 339.19 nanometers, 225.98 nanometers, 339.19 nanometers and 225.98 nanometers in sequence, namely SiO2Is 339.19 nm thick, Al2O3Is 225.98 nm. When the number of the film layers is 6, the bottommost layer is SiO2In the upper order being Al2O3，SiO2，Al2O3，SiO2And Al2O3The corresponding thicknesses of the film layers are 339.19 nm, 225.98 nm, 339.19 nm, 225.98 nm, 339.19 nm and 225.98 nm in sequence. Also, the number of film layers can be set to 8, 12, 14 and more layers with the same film layer material and thickness.
FIG. 6 is SiO2And Al2O3Fig. 6 shows a schematic diagram of light transmittance distribution of different film layer quantities stacked alternately, where the abscissa of fig. 6 represents wavelength and the ordinate represents light transmittance, and as can be seen from fig. 6, in the embodiment of the present application, SiO is used2And Al2O3The alternately stacked functional layers can effectively cut off blue light with the wavelength of 435-440 nanometers, so that the blue light in the waveband is prevented from being transmitted, and the damage to eyes is reduced; in addition, the functional layer can also effectively cut off light with the wavelength of 560 nanometers to 600 nanometers, so that the color gamut of the display panel can be improved, and the user experience can be improved.
FIG. 7 is SiO of the present application2And Al2O3Different membranes alternately stackedFig. 7 shows a graph comparing the influence of the number of layers on transmittance with the influence on transmittance when these film layers are not provided in the prior art, where the abscissa in fig. 7 represents the wavelength and the ordinate represents the transmittance, and it can be seen from fig. 7 that, compared with the prior art, the example of the present application uses SiO2And Al2O3The alternately stacked functional layers can greatly reduce the transmittance of blue light with the wavelength of 435-440 nm and light with the wavelength of 560-600 nm, and obviously improve the display effect.
FIG. 8 is SiO2And Al2O3Fig. 8 shows a schematic diagram of the number of different film layers stacked alternately for reducing radiation energy, wherein the abscissa in fig. 8 represents the number of film layers, and the ordinate represents a radiation energy reduction ratio of blue light.
FIG. 9 is SiO2And Al2O3A schematic diagram of the number of different film layers stacked alternately to the color gamut lifting ratio, and not only SiO is considered in fig. 92And Al2O3The functional layers formed by alternately stacking are cut off for blue light with a wavelength between 435 nanometers and 440 nanometers, and also consider the case of cutting off for light with a wavelength between 560 nanometers and 600 nanometers, as shown in fig. 9, the abscissa in fig. 9 represents the number of film layers, and the ordinate represents the color gamut improvement ratio, as can be seen from fig. 9, as the number of film layers increases, the color gamut is also greatly improved, and the display effect of the display panel is improved.
SiO provided by the embodiment of the application2And Al2O3The alternately stacked functional layers achieve the effect of individually improving the color gamut without considering the reduction of the blue light transmission, as shown in fig. 10, the abscissa in fig. 10 represents the wavelength, and the ordinate represents the light transmittance, as can be seen from fig. 10, in the case of individually improving the color gamut, the light with the wavelength of 560 nanometers to 600 is effectively cut off, the color gamut of the display panel is improved, and the display effect is improved.
FIG. 11 is SiO2And Al2O3Alternately stackedThe corresponding relationship between the number of the same film layers and the color gamut is schematically shown, and only SiO is considered in FIG. 112And Al2O3The functional layers formed by alternate stacking have a light cut-off condition of 560 nanometers to 600 nanometers of wavelength, as shown in fig. 11, the abscissa of fig. 11 represents the number of film layers, and the ordinate represents the color gamut, as can be seen from fig. 11, compared with the prior art, the embodiment of the present application uses SiO2And Al2O3The functional layer that piles up in turn can promote the colour gamut, and increases along with rete quantity, and the effect that promotes the colour gamut is more obvious.
To sum up, the display surface of the display panel in the embodiment of the present application is provided with the functional layer, the functional layer can realize selective transmission of light with different wavelengths through at least three layers of film layers, and the refractive indexes of two adjacent layers of film layers are different, when light exits from the display surface of the display panel, the functional layer can intercept blue light, so that damage to the blue light can be effectively reduced, the blue light belongs to energy waves, the more the blue light is intercepted, the smaller the blue light radiation energy is, and thus damage to eyes caused by transmission of the blue light can be avoided; meanwhile, the functional layer can intercept light influencing the color gamut of the display panel, so that the color gamut of the display panel is improved, the optical performance of the display panel is improved, and the use experience of a user is improved.
The foregoing is only a partial embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations should also be regarded as the protection scope of the present application.
Claims (6)
1. A display panel, comprising: the display device comprises a first display substrate, a second display substrate and a functional layer, wherein the first display substrate and the second display substrate are arranged oppositely;
the functional layer is positioned on the display surface of the display panel and comprises at least three film layers, and the refractive indexes of the two adjacent film layers are different and are used for enabling light with different wavelengths to selectively penetrate through the functional layer;
the functional layer is used for cutting off light with the wavelength of 435-440 nanometers and light with the wavelength of 560-600 nanometers;
the functional layer includes: a plurality of first film layers and a plurality of second film layers;
the first film layers and the second film layers are alternately stacked in sequence, and the refractive indexes of the first film layers and the second film layers are different;
the material of the first film layer comprises: silicon dioxide;
the material of the second film layer comprises: aluminum oxide;
the thickness of the silicon dioxide is 339.19 nanometers, and the thickness of the aluminum oxide is 225.98 nanometers.
2. The display panel according to claim 1, further comprising: the first polaroid is positioned on one side of the second display substrate, which is far away from the first display substrate;
the first display substrate includes: the first substrate base plate is positioned on the anode, the color light-emitting layer and the cathode of the first substrate base plate;
the functional layer is positioned on one side of the second display substrate close to the color light-emitting layer;
or, the functional layer is positioned between the second display substrate and the first polarizer;
or the functional layer is positioned on one side of the first polaroid, which is far away from the color light-emitting layer.
3. The display panel according to claim 1, further comprising: the first polaroid is positioned on one side of the second display substrate, which is far away from the first display substrate;
the first display substrate includes: a first substrate, an anode, a white light emitting layer and a cathode on the first substrate;
the second display substrate includes: the second substrate base plate is positioned on the color film layer on one side of the second substrate base plate close to the white light-emitting layer;
the functional layer is positioned between the second substrate base plate and the color film layer;
or, the functional layer is positioned between the second substrate base plate and the first polaroid;
or the functional layer is positioned on one side of the first polarizer, which is far away from the color film layer.
4. The display panel according to claim 1, further comprising: a liquid crystal layer and a first polarizer;
the first display substrate is an array substrate, the second display substrate is a color film substrate, the liquid crystal layer is positioned between the array substrate and the color film substrate, and the first polarizer is positioned on one side of the color film substrate, which is far away from the array substrate;
the color film substrate comprises: the substrate base plate is positioned on the color film layer on one side of the substrate base plate close to the array base plate;
the functional layer is positioned between the substrate and the color film layer;
or the functional layer is positioned between the color film substrate and the first polarizer;
or the functional layer is positioned on one side of the first polarizer, which is far away from the color film layer.
5. The display panel according to claim 1, wherein the first film layers have the same thickness, and the second film layers have the same thickness.
6. A display device, comprising: the display panel of any one of claims 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910219005.6A CN109785748B (en) | 2019-03-21 | 2019-03-21 | Display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910219005.6A CN109785748B (en) | 2019-03-21 | 2019-03-21 | Display panel and display device |
Publications (2)
| Publication Number | Publication Date |
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| CN109785748A CN109785748A (en) | 2019-05-21 |
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| CN112363344B (en) * | 2020-11-06 | 2022-10-25 | 京东方科技集团股份有限公司 | Display substrate and display panel |
| CN112885880A (en) * | 2021-01-21 | 2021-06-01 | 合肥维信诺科技有限公司 | Display device and manufacturing method thereof |
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