CN109686859B - Organic light emitting display panel and display device - Google Patents
Organic light emitting display panel and display device Download PDFInfo
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- G—PHYSICS
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- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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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
- H10K59/40—OLEDs integrated with touch screens
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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
- H10K59/50—OLEDs integrated with light modulating elements, e.g. with electrochromic elements, photochromic elements or liquid crystal elements
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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
- H10K59/80—Constructional details
- H10K59/8791—Arrangements for improving contrast, e.g. preventing reflection of ambient light
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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
- H10K59/80—Constructional details
- H10K59/8793—Arrangements for polarized light emission
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Abstract
The embodiment of the invention provides an organic light-emitting display panel and a display device, relates to the technical field of display, and can improve the transmittance of a light-transmitting area in the organic light-emitting display panel. An organic light emitting display panel comprising: a light-transmitting area and a display area surrounding the light-transmitting area; displaying the film layer; the polarizing plate is positioned on the light-emitting side of the display film layer and comprises a plurality of grating lines which are arranged along a first direction and extend along a second direction, a seam is arranged between any two adjacent grating lines in the first direction, the width of any two grating lines in the first direction is equal, and the width of any two seams in the first direction is equal; the grating lines corresponding to the light-transmitting area are disconnected at the light-transmitting area, so that the plurality of grating lines are not overlapped with the light-transmitting area in the direction vertical to the organic light-emitting display panel; the width of each grating line in the first direction is b, the width of each line seam in the first direction is s, b + s is d, and d is smaller than the wavelength of visible light.
Description
Technical Field
The invention relates to the technical field of display, in particular to an organic light-emitting display panel and a display device.
Background
In the current display devices such as mobile phones, in order to make better and more sufficient use of the space of the display panel, the screen occupation ratio is higher and higher, that is, the proportion of the display area to the display panel area is larger and larger. When the area of the display area is large, the space of the front camera can be occupied, so that the mode that the front camera is arranged inside the display area is achieved, namely, a light transmission area corresponding to the front camera is arranged on the display panel, the display area surrounds the light transmission area, and the front camera achieves a front photographing function through the light transmission area.
However, the transmittance of the conventional organic light emitting display panel in the light transmitting region is low.
Disclosure of Invention
Embodiments of the present invention provide an organic light emitting display panel and a display device, which can improve transmittance of a light transmission region in the organic light emitting display panel.
In one aspect, an embodiment of the present invention provides an organic light emitting display panel, including:
a light-transmitting area and a display area surrounding the light-transmitting area;
a display film layer including a light emitting device located in the display area;
the polarizing plate is positioned on the light-emitting side of the display film layer and comprises a plurality of grating lines which are arranged along a first direction and extend along a second direction, a seam is formed between any two adjacent grating lines in the first direction, the width of any two grating lines in the first direction is equal, and the width of any two seams in the first direction is equal;
the plurality of grating lines are distributed in the display area, and the grating lines corresponding to the light-transmitting area are disconnected at the light-transmitting area, so that the plurality of grating lines and the light-transmitting area are not overlapped in a direction perpendicular to the organic light-emitting display panel;
the width of each grating line in the first direction is b, the width of each line seam in the first direction is s, b + s is d, and d is smaller than the wavelength of visible light.
Alternatively, d < 300 nm.
Optionally, b ═ s.
Optionally, the thickness of the grating line is equal to d, and the thickness of the grating line is a dimension of the grating line in a direction perpendicular to a plane of the organic light emitting display panel.
Optionally, the organic light emitting display panel further includes:
a packaging cover plate layer positioned between the display film layer and the polarizing plate;
an 1/4 wavelength phase film located between the package cover layer and the polarizer.
Optionally, the organic light emitting display panel further includes:
a packaging cover plate layer positioned between the display film layer and the polarizing plate;
an 1/4 wavelength phase film located between the package cover layer and the display film layer.
Optionally, the 1/4 wave phase film has no overlap with the light-transmitting area in a direction perpendicular to a plane of the organic light-emitting display panel.
Optionally, the 1/4 wavelength phase film is a liquid crystal coating.
Optionally, the organic light emitting display panel further includes:
and the protective layer is positioned on one side of the polarizing plate, which is far away from the display film layer.
Optionally, the organic light emitting display panel further includes:
and the touch control film layer is positioned between the packaging cover plate layer and the polarizing plate.
Optionally, the grating line includes a shielding layer and a supporting layer, the shielding layer is located on a side of the supporting layer away from the display film layer, a refractive index of the shielding layer is smaller than a refractive index of the supporting layer, and toughness of the supporting layer is greater than that of the shielding layer.
Optionally, the shielding layer is attached to and covers the surface of the supporting layer far away from the display film layer and the side surface of the supporting layer.
Optionally, the support layer is a metal material.
Optionally, the shielding layer is a mixture of carbon nanoparticles and a binder.
Optionally, the organic light emitting display panel includes a bending axis, and an extending direction of the grating lines is parallel to an extending direction of the bending axis.
Optionally, the display film layer comprises a plurality of scanning lines;
the extending direction of the grating lines is vertical or parallel to the extending direction of the scanning lines.
Optionally, the material of the grating line is Ag, Al, or Cr.
On the other hand, an embodiment of the invention further provides a display device, which includes the organic light emitting display panel.
According to the organic light-emitting display panel and the display device, the grating lines are periodically arranged to form the wire grid, so that the function of generating linearly polarized light is achieved, the grating lines are not overlapped with the light-transmitting area, and the transmittance of the light-transmitting area is improved; compared with the polarizing plate in the prior art, the grating line has stronger high-temperature and high-humidity resistance, so the stability is better; in addition, the process of digging holes in the metal is mature, and risks such as cracks and burrs cannot be caused to the polarizing plate.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an organic light emitting display panel according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view along direction BB' in FIG. 1;
FIG. 3 is a partially enlarged view of the polarizer in the area A of FIG. 1;
FIG. 4 is a schematic view of another cross-sectional structure along direction BB' in FIG. 1;
FIG. 5 is a schematic view of another cross-sectional structure along direction BB' in FIG. 1;
FIG. 6 is a schematic view of another cross-sectional structure along direction BB' in FIG. 1;
FIG. 7 is a schematic cross-sectional view of an OLED panel including the polarizer of FIG. 3 in the direction CC';
FIG. 8 is a schematic cross-sectional view of an OLED panel including the polarizing plate of FIG. 3 in the direction CC';
fig. 9 is a schematic structural diagram of a display device according to an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. 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.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
To further illustrate the advantageous effects of the embodiments of the present invention, before the embodiments of the present invention are described in detail, a process of finding a problem of the prior art by the inventor is first described, in which a conventional organic light emitting display panel, in order to prevent background light from the outside from being reflected, thereby reducing the contrast ratio, two films, a polarizing plate and an 1/4 wavelength phase film are usually disposed on the light-emitting side of the organic light-emitting display panel, and after the external light passes through the polarizing plate, half of the light is absorbed to form a polarization state, and then passes through the 1/4 wavelength phase film to change the linearly polarized light into circularly polarized light (such as left-handed), then re-enter the display panel, and after being reflected in the display panel, will be converted into an opposite phase (for example, right-handed rotation), and pass through the 1/4 wave phase film again, the converted linearly polarized light just can not pass through the polarizer. Therefore, if the light-transmitting area is arranged in the display area of the organic light-emitting display panel and the polarizing plate of the light-transmitting area is reserved, the light-transmitting area has low transmittance, and the shooting of the front camera is adversely affected. In order to increase the transmittance of the light-transmitting area, the whole display panel may be perforated in the light-transmitting area, however, the conventional polarizing plate is usually manufactured by dyeing and stretching in a certain proportion of liquid, which may cause the polarizing plate to be easily damaged under the conditions of higher temperature and higher humidity, and the perforation process of the conventional polarizing plate is not mature, such as the risk of cracks and burrs at the perforated part.
As shown in fig. 1, fig. 2 and fig. 3, fig. 1 is a schematic structural diagram of an organic light emitting display panel in an embodiment of the present invention, fig. 2 is a schematic structural diagram of a cross-section along direction BB' of fig. 1, and fig. 3 is a schematic partial enlarged view of a polarizing plate in area a of fig. 1, and an embodiment of the present invention provides an organic light emitting display panel, including: a light-transmitting region 1 and a display region 2 surrounding the light-transmitting region 1; a display film layer 3, the display film layer 3 including a light emitting device 30 in a display area 2; the polarizing plate 4 is positioned on the light-emitting side of the display film layer 3, the polarizing plate 4 comprises a plurality of grating lines 40 which are arranged along a first direction h1 and extend along a second direction h2, a seam m is arranged between any two adjacent grating lines 40 in the first direction h1, the width b of any two grating lines 40 in the first direction h1 is equal, and the width s of any two seams m in the first direction h1 is equal; the plurality of grating lines 40 are distributed in the display area 2, and the grating line 40 corresponding to the light-transmitting area 1 is disconnected at the light-transmitting area 1, so that the plurality of grating lines 40 are not overlapped with the light-transmitting area 1 in a direction perpendicular to the organic light-emitting display panel; each raster line 40 has a width b in the first direction h1, and each line seam m has a width s in the first direction h1, b + s being d, d being smaller than the wavelength of visible light.
Specifically, the grating line 40 corresponding to the light-transmitting area 1 is a grating line 40 adjacent to the light-transmitting area 1 in the extending direction thereof, the polarizing plate 4 is composed of a plurality of grating lines 40 arranged along the first direction h1 and extending along the second direction h2, and since the width b of each grating line 40 in the first direction h1 is equal, the width s of each line seam m in the first direction h1 is equal, and d is smaller than the visible light wavelength, a periodically arranged grating is formed by the grating lines 40, so as to realize the function of generating linearly polarized light. The light emitting device 30 may specifically include a first electrode, an organic light emitting layer, and a second electrode stacked in sequence, and a voltage is applied to the first electrode and the second electrode to combine holes and electrons in the organic light emitting layer, so as to achieve light emission, wherein one of the first electrode and the second electrode is a reflective electrode, and reflects ambient light in addition to light emitted in the organic light emitting layer.
According to the organic light-emitting display panel, the grating lines are periodically arranged to form the wire grid, so that the function of generating linearly polarized light is achieved, the grating lines are not overlapped with the light-transmitting area, and the transmittance of the light-transmitting area is improved; in addition, compared with the polarizing plate in the prior art, the grating lines are used for manufacturing the polarizing plate, so that the requirements on materials and processes are eliminated, the hole digging of the polarizing plate can be realized by using more mature processes and materials, and the risks of cracks, burrs and the like caused by the hole digging of the existing polarizing plate are reduced.
Alternatively, d < 300nm, the smaller d, the smaller probability of occurrence of diffraction and interference phenomena, and the adverse effect on the display due to diffraction or interference generated by the wire grid can be further reduced.
Alternatively, b is s, and the larger the width b of each raster line 40 in the first direction h1 is, the lower the transmittance of the display region 2 is under the condition determined by d, so in order to ensure the transmittance of the display region 2 and simultaneously ensure the implementation of the basic function of the polarizing plate 4, b is set to s.
Optionally, the thickness of the grating lines 40 is equal to d, and the thickness of the grating lines 40 is a dimension of the grating lines 40 in a direction perpendicular to a plane of the organic light emitting display panel, that is, the thickness of the grating lines 40 is the same as a period dimension of the grating lines, it should be noted that the drawings in the embodiments of the present invention are only schematic diagrams, and a proportional relationship of the dimensions in the drawings does not necessarily represent an actual proportional relationship of the dimensions, for example, d in fig. 2 and d in fig. 3 do not appear to be equal, but represent the same dimension.
Alternatively, as shown in fig. 2, the organic light emitting display panel further includes: a package cover plate layer 5 positioned between the display film layer 3 and the polarizing plate 4; and an 1/4 wavelength phase film 6 between the package cover layer 5 and the polarizing plate 4.
Specifically, the encapsulation cover plate layer 5 is used for realizing encapsulation of the display film layer 3, blocking damage of moisture to the display film layer 3, blocking damage of oxygen to the display film layer 3, increasing strength of the light-emitting device 30 against the outside world, for a rigid organic light-emitting display panel, the encapsulation cover plate layer 5 may be a glass cover plate, for a flexible organic light-emitting display panel, the encapsulation cover plate layer 5 may be a thin layer formed by stacking an organic encapsulation layer and an inorganic encapsulation layer, wherein the organic encapsulation layer may include a polymer, such as a single layer formed by polyethylene terephthalate, polyimide, polycarbonate, epoxy resin, polyethylene, polyacrylate, and organic siloxaneA layer or stack of layers, the inorganic encapsulation layer may comprise a metal; a non-metal; oxides of metals, non-metals or mixtures thereof; metal or non-metal fluorides or mixtures thereof; a nitride of a metal, a non-metal, or mixtures thereof; carbides of metals, non-metals or mixtures thereof; a metal, non-metal oxynitride or mixture thereof; a metal, non-metal boride or a mixture thereof; a metal, a non-metallic silicide, or a mixture thereof; an alloy of at least two metals; and alloys of metals and non-metals. For example, the inorganic encapsulation layer may comprise SiNx, Al2O3、SiO2And TiO2In any of the above embodiments, the inorganic encapsulation layer is mainly used for isolating water and oxygen, and the organic encapsulation layer is mainly used for relieving stress. The 1/4 wave-phase film 6 is used in cooperation with the polarizer 4 to prevent ambient light from being reflected.
Alternatively, as shown in fig. 4, fig. 4 is another schematic cross-sectional structure view along direction BB' in fig. 1, and the organic light emitting display panel further includes: a package cover plate layer 5 positioned between the display film layer 3 and the polarizing plate 4; an 1/4 wavelength phase film 6 located between the encapsulation cover sheet layer 5 and the display film layer 3.
Specifically, the structure shown in fig. 4 is different from the structure shown in fig. 2 only in the relative position relationship between the package cover plate layer 5 and the 1/4 wavelength phase film 6, and in the structure shown in fig. 4, the 1/4 wavelength phase film 6 is disposed between the package cover plate layer 5 and the display film layer 3, that is, after the display film layer 3 is manufactured, the 1/4 wavelength phase film 6 is directly manufactured, and then packaging is performed, because in the packaging process, there may be a reserved space, and the 1/4 wavelength phase film 6 is directly manufactured on the surface of the display film layer 3, the reserved space in the display film 6 can be utilized by the 1/4 wavelength phase film 6, so that the thickness of the whole organic light emitting display panel is reduced. In addition, the 1/4 wave phase film 6 is disposed between the package cover layer 5 and the display film layer 3, so that the 1/4 wave phase film 6 is closer to the reflection position of the ambient light, and better effect of resisting the reflection of the ambient light is achieved by matching with the polarizing plate 4. In addition, the 1/4 wave phase film 6 is disposed between the package cover plate layer 5 and the display film layer 3, and since the 1/4 wave phase film 6 can be directly fabricated on the surface of the display film layer 3, no additional glue layer is required to be attached.
Alternatively, as shown in fig. 5 and fig. 6, fig. 5 is another schematic cross-sectional structure of the direction BB 'in fig. 1, fig. 6 is another schematic cross-sectional structure of the direction BB' in fig. 1, and the 1/4 wavelength phase film 6 does not overlap with the light-transmitting region 1 in the direction perpendicular to the plane of the organic light-emitting display panel. 1/4 the wavelength phase film 6 can be provided with corresponding cut-outs in the light-transmissive region 1 to further increase the transmittance of the light-transmissive region 1.
Optionally, the 1/4 wavelength phase film 6 is a liquid crystal coating to further reduce the overall thickness of the organic light emitting display panel, and in other realizable implementations, the 1/4 wavelength phase film 6 may also be realized by other materials or processes, which is not limited by the embodiment of the present invention.
Optionally, the organic light emitting display panel further includes: and the protective layer 7 is positioned on the side of the polarizing plate 4 far away from the display film layer 3 and is used for protecting the polarizing plate 4.
Alternatively, as shown in fig. 6, the organic light emitting display panel further includes: the touch film layer 8 is located between the package cover plate layer 5 and the polarizer 4 to enable the organic light emitting display panel to implement a touch function, and it should be noted that the specific location of the touch film layer 8 is not limited in the embodiments of the present invention, for example, in other realizable embodiments, the touch film layer may also be located between the package cover plate layer and the display film layer.
Alternatively, as shown in fig. 7, fig. 7 is a schematic cross-sectional view of an organic light emitting display panel including the polarizer in fig. 3, the cross-section of the organic light emitting display panel is in a direction CC', the grating line 40 includes a shielding layer 41 and a supporting layer 42, the shielding layer 41 is located on a side of the supporting layer 42 away from the display film layer 3, a refractive index of the shielding layer 41 is smaller than a refractive index of the supporting layer 42, and toughness of the supporting layer 42 is greater than that of the shielding layer 41.
Specifically, on one hand, the reflection of the grating lines 40 to light is reduced by the shielding layer 41 with a smaller refractive index, so that the display effect is improved; on the other hand, since the materials with smaller refractive indexes usually have cross toughness, the supporting layer 42 with larger toughness is used to support the grating lines 40 so as to reduce the probability of damaging the polarizer 4, and of course, in other realizable embodiments, the grating lines 40 may also be of a single-layer structure.
Alternatively, as shown in fig. 8, fig. 8 is another schematic cross-sectional view of the organic light emitting display panel including the polarizer in fig. 3, the cross-sectional view being in the direction CC', and the blocking layer 41 is attached to and covers the surface of the supporting layer 42 away from the display film layer 3 and the side surface of the supporting layer 42, so as to further reduce the light reflectivity at the side surface of the supporting layer 42.
Alternatively, the supporting layer 42 is made of a metal material, such as Ag, Al, or Cr, which generally has greater toughness and is suitable as the material of the supporting layer 42, but often has higher reflectivity, so as to cooperate with the shielding layer 41 to reduce the reflection of light.
Optionally, the shielding layer 41 is a mixture of carbon nanoparticles and a binder to achieve a black shielding effect and facilitate adhesion to the surface of the supporting layer 42. In other embodiments, the shielding layer 41 may also be one or more layers of metal material, such as one or a combination of two or more of Ag, Al, or Cr.
Alternatively, if the organic light emitting display panel is a flexible display panel, the organic light emitting display panel includes a bending axis, and the extending direction of the grating lines 40 is parallel to the extending direction of the bending axis.
Specifically, the organic light emitting display panel may be bent along the direction of the bending axis, and if the grating lines 40 are perpendicular to the direction of the bending axis, damage to the grating lines 40 is easily caused during the bending process, and therefore, in the embodiment of the present invention, the extending direction of the grating lines 40 is set to be parallel to the extending direction of the bending axis, so that damage to the grating lines 40 during the bending process is small.
Optionally, the display film layer 3 includes a plurality of scan lines; the extension direction of the grating lines 40 is perpendicular or parallel to the extension direction of the scanning lines.
Specifically, in the display film layer 3, the scanning lines and the data lines are perpendicular to each other, and if the grating lines and the scanning lines or the data lines have a non-perpendicular angle, the shape between the two layers is not regular, so moire phenomenon is likely to occur, and adverse effect is caused on display. Preferably, the extension direction of the grating lines 40 is perpendicular to the extension direction of the scanning lines.
Optionally, the material of the grating lines 40 is Ag or Cr, and the manufacturing process of the metal grating lines 40 is not limited to the photolithography process, the nanoimprint process, and the inkjet printing process.
As shown in fig. 9, fig. 9 is a schematic structural diagram of a display device according to an embodiment of the present invention, and the embodiment of the present invention further provides a display device including the organic light emitting display panel 100.
Specifically, the specific structure of the display panel 100 is the same as that of the above embodiments, and is not described herein again. The display device can be any electronic equipment with a display function, such as a mobile phone, a tablet computer, a notebook computer, an electronic paper book or a television. The display device may further include: the front camera is disposed corresponding to the light-transmitting area 1 of the organic light-emitting display panel 100, and the front camera realizes a front photographing function through the light-transmitting area 1, so that if the transmittance of the light-transmitting area 1 is low, adverse effects may be caused on photographing of the front camera.
According to the display device, the grating lines are periodically arranged to form the wire grid, so that the function of generating linearly polarized light is achieved, the grating lines are not overlapped with the light transmission area, and the transmittance of the light transmission area is improved; compared with the polarizing plate in the prior art, the grating line has stronger high-temperature and high-humidity resistance, so the stability is better; in addition, the process of digging holes in the metal is mature, and risks such as cracks and burrs cannot be caused to the polarizing plate.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (18)
1. An organic light emitting display panel, comprising:
a light-transmitting area and a display area surrounding the light-transmitting area;
a display film layer including a light emitting device located in the display area;
the polarizing plate is positioned on the light-emitting side of the display film layer and comprises a plurality of grating lines which are arranged along a first direction and extend along a second direction, a seam is formed between any two adjacent grating lines in the first direction, the width of any two grating lines in the first direction is equal, and the width of any two seams in the first direction is equal;
the plurality of grating lines are distributed in the display area, and the grating lines corresponding to the light-transmitting area are disconnected at the light-transmitting area, so that the plurality of grating lines and the light-transmitting area are not overlapped in a direction perpendicular to the organic light-emitting display panel;
the width of each grating line in the first direction is b, the width of each line seam in the first direction is s, b + s is d, and d is smaller than the wavelength of visible light.
2. The organic light-emitting display panel according to claim 1,
d＜300nm。
3. the organic light-emitting display panel according to claim 2,
b＝s。
4. the organic light-emitting display panel according to claim 3,
the thickness of the grating line is equal to d, and the thickness of the grating line is the size of the grating line in the direction perpendicular to the plane of the organic light-emitting display panel.
5. The organic light-emitting display panel according to claim 1, further comprising:
a packaging cover plate layer positioned between the display film layer and the polarizing plate;
an 1/4 wavelength phase film located between the package cover layer and the polarizer.
6. The organic light-emitting display panel according to claim 1, further comprising:
a packaging cover plate layer positioned between the display film layer and the polarizing plate;
an 1/4 wavelength phase film located between the package cover layer and the display film layer.
7. The organic light-emitting display panel according to claim 5 or 6,
the 1/4 wave phase film has no overlap with the light transmission area in the direction perpendicular to the plane of the organic light-emitting display panel.
8. The organic light-emitting display panel according to claim 7,
the 1/4 wavelength phase film is a liquid crystal coating.
9. The organic light-emitting display panel according to claim 1, further comprising:
and the protective layer is positioned on one side of the polarizing plate, which is far away from the display film layer.
10. The organic light-emitting display panel according to claim 7, further comprising:
and the touch control film layer is positioned between the packaging cover plate layer and the polarizing plate.
11. The organic light-emitting display panel according to claim 1,
the grating line comprises a shielding layer and a supporting layer, the shielding layer is located on one side, far away from the display film layer, of the supporting layer, the refractive index of the shielding layer is smaller than that of the supporting layer, and the toughness of the supporting layer is larger than that of the shielding layer.
12. The organic light-emitting display panel according to claim 11,
the shielding layer is attached to and covers the surface of one side of the supporting layer, which is far away from the display film layer, and the side face of the supporting layer.
13. The organic light-emitting display panel according to claim 11,
the supporting layer is made of metal materials.
14. The organic light-emitting display panel according to claim 13,
the shielding layer is a mixture of carbon nanoparticles and a binder.
15. The organic light-emitting display panel according to claim 1,
the organic light emitting display panel comprises a bending shaft, and the extending direction of the grating lines is parallel to the extending direction of the bending shaft.
16. The organic light-emitting display panel according to claim 1,
the display film layer comprises a plurality of scanning lines;
the extending direction of the grating lines is vertical or parallel to the extending direction of the scanning lines.
17. The organic light-emitting display panel according to claim 1, wherein the material of the grating lines is Ag, Al, or Cr.
18. A display device comprising the organic light-emitting display panel according to any one of claims 1 to 17.
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| CN110070801B (en) * | 2019-04-30 | 2023-04-18 | 武汉天马微电子有限公司 | Display panel and display device |
| TWI725733B (en) * | 2020-02-11 | 2021-04-21 | 友達光電股份有限公司 | Display |
| CN113270443A (en) | 2020-02-17 | 2021-08-17 | 群创光电股份有限公司 | Electronic device |
| CN111640771A (en) * | 2020-06-08 | 2020-09-08 | 昆山国显光电有限公司 | Display device |
| CN111785853B (en) | 2020-08-07 | 2022-11-18 | 武汉天马微电子有限公司 | Display panel and display device |
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| EP1420275B1 (en) * | 2001-08-24 | 2008-10-08 | Asahi Glass Company, Limited | Isolator and optical attenuator |
| JP2009146586A (en) * | 2007-12-11 | 2009-07-02 | Tohoku Univ | Backlight |
| JP2015028656A (en) * | 2014-09-26 | 2015-02-12 | 旭化成イーマテリアルズ株式会社 | Wire grid polarization plate |
| CN104516164B (en) * | 2015-01-05 | 2018-03-09 | 京东方科技集团股份有限公司 | A kind of display base plate and preparation method thereof and display device |
| KR102460003B1 (en) * | 2016-01-08 | 2022-10-31 | 삼성디스플레이 주식회사 | λ/4 PHASE DIFFERENCE FILM, DISPLAY APPARATUS AND MANUFATURING METHOD THEREOF |
| CN105892076A (en) * | 2016-06-14 | 2016-08-24 | 京东方科技集团股份有限公司 | Parallax grating panel, display substrate, display device, electronic equipment and display method |
| CN106249336A (en) * | 2016-08-04 | 2016-12-21 | 深圳市华星光电技术有限公司 | Rotatory polarization sheet and OLED display |
| CN207164375U (en) * | 2017-07-12 | 2018-03-30 | 深圳市深越光电技术有限公司 | A kind of bore hole 3D display panel and display device |
| CN107462944B (en) * | 2017-08-01 | 2019-10-01 | 京东方科技集团股份有限公司 | A kind of production method of metal grating, metal grating and display device |
| CN107528008B (en) * | 2017-08-18 | 2020-03-06 | 京东方科技集团股份有限公司 | Organic light-emitting display device, preparation method and display device |
| CN107544180A (en) * | 2017-09-26 | 2018-01-05 | 京东方科技集团股份有限公司 | Light emitting diode, backlight module and liquid crystal display device |
| CN208092352U (en) * | 2017-10-24 | 2018-11-13 | 深圳超多维科技有限公司 | 3 d display device and grating applied to the 3 d display device |
| CN108878681A (en) * | 2018-06-27 | 2018-11-23 | 上海天马微电子有限公司 | Organic light-emitting display panel and display device |
| CN109031500A (en) * | 2018-09-28 | 2018-12-18 | 武汉天马微电子有限公司 | Polaroid, display panel and display device |
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