CN110444688A - The production method and display device of display panel, display panel - Google Patents
The production method and display device of display panel, display panel Download PDFInfo
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- CN110444688A CN110444688A CN201910755349.9A CN201910755349A CN110444688A CN 110444688 A CN110444688 A CN 110444688A CN 201910755349 A CN201910755349 A CN 201910755349A CN 110444688 A CN110444688 A CN 110444688A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 239000000758 substrate Substances 0.000 claims abstract description 47
- 230000005540 biological transmission Effects 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims description 25
- 238000004806 packaging method and process Methods 0.000 claims description 15
- 230000001939 inductive effect Effects 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 14
- 238000005538 encapsulation Methods 0.000 claims description 10
- 239000002243 precursor Substances 0.000 claims description 8
- 229910044991 metal oxide Inorganic materials 0.000 claims description 4
- 150000004706 metal oxides Chemical class 0.000 claims description 4
- 230000000007 visual effect Effects 0.000 abstract description 21
- 239000003086 colorant Substances 0.000 abstract description 5
- 238000004020 luminiscence type Methods 0.000 abstract 5
- 239000010410 layer Substances 0.000 description 90
- 238000010586 diagram Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 10
- 239000004020 conductor Substances 0.000 description 7
- 230000006698 induction Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000002834 transmittance Methods 0.000 description 5
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 230000001965 increasing effect Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000013078 crystal Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000001027 hydrothermal synthesis Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000002346 layers by function Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 235000009537 plain noodles Nutrition 0.000 description 1
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/85—Arrangements for extracting light from the devices
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/85—Arrangements for extracting light from the devices
- H10K50/854—Arrangements for extracting light from the devices comprising scattering means
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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
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
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Abstract
The invention discloses the production methods and display device of a kind of display panel, display panel.The display panel includes substrate, the luminescence unit being set on substrate；Further include light direction adjustment layer, is set to side of the luminescence unit far from substrate；Light direction adjustment layer includes multiple transparent light guide bodies, and multiple transparent light guide bodies have multiple and different light conducting directions, for adjusting the transmission direction of luminescence unit emergent light.The transmission direction of luminescence unit emergent light is adjusted by transparent light guide body, so that the direction for the light that the direction for the light being emitted by light direction adjustment layer is directly emitted relative to luminescence unit more disperses, to increase the light quantity under the big visual angle of display panel, reduce the light quantity in vertical light-emitting unit light-emitting surface direction (under positive visual angle), therefore the light attenuation under big visual angle is reduced, luminance difference of the light of different colours at big visual angle is reduced, the colour cast of display panel under big visual angle is improved.
Description
Technical Field
The embodiment of the invention relates to the technical field of display, in particular to a display panel, a manufacturing method of the display panel and a display device.
Background
With the development of display technology, people have higher and higher requirements for the display performance of display panels. The existing display panel has color cast when being watched at a large viewing angle, so that the improvement of the viewing angle color cast of the display panel becomes an urgent problem to be solved in the display panel industry.
Disclosure of Invention
The invention provides a display panel, a manufacturing method of the display panel and a display device, which aim to improve the color cast phenomenon of the display panel with a large visual angle.
In a first aspect, an embodiment of the present invention provides a display panel, including:
a substrate, a light emitting unit disposed on the substrate;
the light emitting direction adjusting layer is arranged on one side, far away from the substrate, of the light emitting unit;
the light emitting direction adjusting layer comprises a plurality of transparent light guide bodies, and the transparent light guide bodies are provided with a plurality of different light guide directions and used for adjusting the transmission direction of the emergent light of the light emitting unit.
Optionally, the transparent light guide is cylindrical or spherical in shape.
Optionally, the transparent light guide is cylindrical in shape; at least part of the axes of the transparent light guide bodies have different included angles with the plane of the substrate.
Optionally, the material of the transparent light guide body is a metal oxide.
Optionally, the refractive index of the transparent light guide body is greater than the refractive index of a medium filling the gaps between the plurality of transparent light guide bodies;
preferably, the refractive index of the transparent light guide is greater than or equal to 1.5.
Optionally, the display panel further comprises:
the packaging layer is arranged on one side, away from the substrate, of the light emitting unit, and the light emitting direction adjusting layer is arranged on one side, away from the light emitting unit, of the packaging layer.
Optionally, the display panel further comprises:
the polaroid, the touch layer and the cover plate are arranged on one side, away from the light-emitting unit, of the packaging layer in a stacked mode, and the cover plate is arranged on one side, away from the packaging layer, of the touch layer and the polaroid;
the light emitting direction adjusting layer is positioned on one side of the polarizer, which is far away from the packaging layer; or,
the light emitting direction adjusting layer is located on one side, far away from the packaging layer, of the touch layer.
In a second aspect, an embodiment of the present invention further provides a display device, including the display panel provided in any embodiment of the present invention.
In a third aspect, an embodiment of the present invention further provides a method for manufacturing a display panel, including:
providing a substrate;
forming a light emitting unit on the substrate;
forming a light emitting direction adjusting layer on one side of the light emitting unit far away from the substrate; the light emitting direction adjusting layer comprises a plurality of transparent light guide bodies, and the transparent light guide bodies are provided with a plurality of different light guide directions and used for adjusting the transmission direction of the emergent light of the light emitting unit.
Optionally, the display panel further includes an encapsulation layer disposed on a side of the light emitting unit away from the substrate;
forming a light emitting direction adjusting layer on one side of the light emitting unit far away from the substrate, including:
forming an inducing layer on one side of the packaging layer far away from the substrate;
and arranging a precursor material on the inducing layer, and forming a light emergent direction adjusting layer by an inducing growth method.
According to the technical scheme of the embodiment of the invention, the light emitting direction adjusting layer is arranged on one side of the light emitting unit, which is far away from the substrate, and comprises a plurality of transparent light guide bodies, and the plurality of transparent light guide bodies are provided with a plurality of different light guide directions. The transmission direction of the emergent light of the light-emitting unit is adjusted through the transparent light guide body, so that the direction of the emergent light of the light-emitting direction adjusting layer is more dispersed relative to the direction of the emergent light directly emitted by the light-emitting unit, the light quantity of the display panel under a large visual angle is increased, the light quantity in the direction (under a front visual angle) perpendicular to the emergent light surface of the light-emitting unit is reduced, the light attenuation under the large visual angle is reduced, the brightness difference of the light rays with different colors under the large visual angle is reduced, and the color cast of the display panel under the large visual angle is improved.
Drawings
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a display device according to an embodiment of the present invention;
fig. 7 is a flowchart of a method for manufacturing a display panel according to an embodiment of the invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
The Organic Light-Emitting Diode (OLED) display panel has many advantages of being all solid-state, actively Emitting Light, fast in response speed, high in contrast, capable of achieving flexible display, and the like, and thus the OLED display panel is widely applied.
In the prior art, most of OLED display panels adopt a top light-emitting structure, and the light-emitting structure has the advantages of high color purity and high efficiency. The top light-emitting structure comprises a microcavity, and light rays can generate a microcavity effect in the microcavity, so that light rays with specific wavelengths are enhanced in a direction perpendicular to the display panel, and the light-emitting intensity of the OLED in the display panel is enhanced. However, when the viewing angle is increased, under the action of the microcavity effect, the red, green and blue three primary colors have different brightness attenuation trends along with the increase of the viewing angle, so that the display panel generates color shift under a large viewing angle.
In view of the above problems, embodiments of the present invention provide a display panel. The display panel comprises a substrate and a light emitting unit arranged on the substrate. The display panel also comprises a light-emitting direction adjusting layer which is arranged on one side of the light-emitting unit far away from the substrate; the light emitting direction adjusting layer comprises a plurality of transparent light guide bodies, the plurality of transparent light guide bodies are provided with a plurality of different light guide directions, and the transparent light guide bodies are used for adjusting the transmission direction of the light emitted by the light emitting units.
Specifically, the light emitting unit includes a first electrode, a light emitting function layer, and a second electrode. When the light emitting unit has a top emission structure, the first electrode may be an anode and the second electrode may be a cathode. The first electrode, the light-emitting functional layer, and the second electrode form a microcavity.
The transparent light guide body has a light guide effect and can transmit light along a specific direction. The plurality of transparent light guide bodies have a plurality of different light guide directions, namely the transparent light guide bodies adjust the transmission direction of emergent light of the light emitting units, so that the light rays are emitted in different directions after passing through the plurality of transparent light guide bodies, and the direction of the light emitted by the light emitting direction adjusting layer is more dispersed relative to the direction of the light directly emitted by the light emitting units, thereby increasing the light quantity of the display panel under a large visual angle, reducing the light quantity in the direction (under a front viewing angle) of the emergent surface of the vertical light emitting units, reducing the light attenuation under the large visual angle, reducing the brightness difference of the light rays with different colors under the large visual angle, and improving the color cast of the display panel under the large visual angle.
When the included angle between the light guide direction of the plurality of transparent light guide bodies and the plane of the substrate comprises a plurality of angles with any size, the direction of the light emitted by the light emitting direction adjusting layer can be dispersed to the maximum, so that the color cast of the display panel under a large viewing angle can be improved to the maximum.
There are many cases where the plurality of transparent light guide bodies have a plurality of different light guide directions. For example, each transparent light guide has one light guiding direction, and different transparent light guides have different light guiding directions, so that it is possible to realize a plurality of transparent light guides having a plurality of different light guiding directions. Alternatively, each transparent light guide has a plurality of different light guiding directions, and the plurality of transparent light guides have a plurality of different light guiding directions.
The light exit direction adjustment layer is provided in various forms. For example, the light-emitting direction adjustment layer may be formed first, and then the light-emitting direction adjustment layer is attached to the side of the light-emitting unit away from the substrate. And a light emitting direction adjusting layer can be directly formed on one side of the light emitting unit far away from the substrate.
Alternatively, the shape of the transparent light guide may be columnar or spherical.
Specifically, when the transparent light guide is columnar, the light guiding direction of the transparent light guide may be the axial direction of the transparent light guide. The different directions of the emergent light of the plurality of transparent light guide bodies can be realized by arranging the plurality of transparent light guide bodies in different axial directions. When the transparent light guide body is spherical, the emergent light of the spherical transparent light guide body is emitted along the spherical surface in a dispersed manner, so that the emergent light of the transparent light guide body is different in direction. In addition, because the process of forming the columnar or spherical light guide body is simpler than the light guide body in other shapes, and the light guide direction of the columnar or spherical light guide body is better controlled, the columnar or spherical shape is adopted through the shape of the transparent light guide body, the process difficulty is reduced while the light transmission direction can be better adjusted.
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention. As shown in fig. 1, a light emitting unit 120 is disposed on a substrate 110 of the display panel, and a light emitting direction adjusting layer 130 is disposed on a side of the light emitting unit 120 away from the substrate 110. The plurality of transparent light guides 131 in the light exit direction adjustment layer 130 are columnar. The included angle between the axis of at least part of the transparent light guide 131 and the plane of the substrate 110 is different.
Specifically, the plurality of light emitting units 120 may be arranged in an array. The first electrode 121, the light emitting function layer 122, and the second electrode 122 of the light emitting unit 120 form a microcavity. When the transparent light guide 131 has a columnar shape, the transparent light guide 131 includes a top surface, a bottom surface, and side surfaces. The top surface of the transparent light guide 131 may serve as a light exit surface. The light enters the transparent light guide 131 from the bottom surface of the transparent light guide 131, is transmitted along the axial direction of the transparent light guide 131, and then exits from the light exit surface, thereby realizing the light guiding effect of the transparent light guide 131. The direction of light emitted by the transparent light guide 131 for guiding light is related to the axial direction of the transparent light guide 131 and the direction of the light exit surface. The included angle between the axis of at least part of the transparent light guide body 131 and the plane of the substrate 110 is different, that is, the inclination angle of at least part of the transparent light guide body 131 is different, so that the direction of the light emitted by the transparent light guide bodies 131 is different, and in the process, the axis direction of the transparent light guide body 131 is easier to control, thereby reducing the process difficulty.
Fig. 2 is a schematic structural diagram of another display panel according to an embodiment of the present invention. As shown in fig. 2, the plurality of transparent light guides 131 in the light exit direction adjustment layer 130 are spherical. Each transparent light guiding body 131 has a plurality of different light emitting directions along the spherical surface, that is, each transparent light guiding body 131 has a plurality of light guiding directions along the spherical surface, which realizes that the directions of the light emitted from the light emitting direction adjusting layer 130 are more dispersed.
On the basis of the technical schemes, the refractive index of the transparent light guide bodies is larger than that of the medium filled in the gaps among the plurality of transparent light guide bodies.
Specifically, the gaps are formed between the transparent light guide bodies, the medium between the gaps can be air and the like, the refractive index of the material of the transparent light guide body is larger than that of the medium, and when the incident angle is larger than or equal to the critical value of the total reflection angle, the light in the transparent light guide body is totally reflected when being emitted to the medium in the gaps from the side surface, namely the light in the transparent light guide body is totally reflected in the transparent light guide body, is transmitted along the axial direction of the transparent light guide body and is then emitted out from the light emitting surface of the transparent light guide body, so that the light guide effect of the transparent light. The higher the refractive index of the transparent light guide body is, the smaller the critical angle of total reflection when the light in the transparent light guide body is emitted from the side surface to the medium in the gap is, so that more light in the transparent light guide body is totally reflected when the light is emitted from the side surface to the medium in the gap, and more light can be emitted from the light emitting surface of the transparent light guide body.
Preferably, when the medium in which the gaps between the transparent light-guiding bodies are filled is air, the refractive index of the transparent light-guiding bodies may be set to be greater than or equal to 1.5.
Specifically, because the refracting index of air is lower, and need not additionally to add other materials when preparing, consequently set up the medium that the space between the transparent light guide body was filled for the air, can furthest hold the light in the transparent light guide body and totally reflect in the transparent light guide body on the one hand, on the other hand has reduced the cost of manufacture. The refractive index through setting up transparent light conductor is greater than 1.5, has guaranteed that most takes place the total reflection when penetrating to the air of light in the transparent light conductor, avoids light to incide to reflect repeatedly or refract and can't be by display panel outgoing in the space, has guaranteed that the most light that incides in the transparent light conductor can be by the play plain noodles of light conductor outgoing, has improved the light quantity of light conductor transmission, has reduced light loss.
In addition, the metal oxide has high refractive index and high transmittance, the transparent light guide body can be made of metal oxide, the light transmittance of the transparent light guide body can be ensured to be higher, so that the light loss when the light passes through the transparent light guide body is reduced, the high refractive index of the transparent light guide body can be ensured, the critical angle of total reflection when the light in the transparent light guide body is emitted to the air medium in the gap from the side surface is reduced, the total reflection is caused when more light in the transparent light guide body is emitted to the air medium in the gap from the side surface, more light can be emitted from the light emitting surface of the transparent light guide body, the light quantity transmitted by the light guide body is improved, the display panel is ensured to have higher light emitting rate, the light emitted by the display panel is ensured to be more dispersed, and the color cast of the display panel under.
Illustratively, the material of the transparent light guide may be zinc oxide. The refractive index of zinc oxide is 2.0, and both can guarantee that transparent light conductor has high refractive index, can also guarantee the light transmittance of transparent light conductor, when guaranteeing that display panel has higher light-emitting rate, guarantee that the light of being emergent by display panel is more dispersed, improve display panel's colour cast under the large visual angle.
Fig. 3 is a schematic structural diagram of another display panel according to an embodiment of the present invention. As shown in fig. 3, the display panel further includes an encapsulation layer 140 disposed on a side of the light emitting unit 120 away from the substrate 110, and the light-emitting direction adjustment layer 130 is disposed on a side of the encapsulation layer 140 away from the light emitting unit 120.
Specifically, when the light-emitting direction adjustment layer 130 is directly formed on the display panel, a chemical induced growth method may be used. When the light-exiting direction adjustment layer 130 is formed by a chemical induced growth method, a large amount of water vapor is introduced in the preparation process of the light-exiting direction adjustment layer 130 because the precursor material is immersed in the induced layer in a solution manner. Because the encapsulation layer 140 has the water-blocking and oxygen-blocking characteristics, the light-emitting direction adjustment layer 130 is disposed on the side of the encapsulation layer 140 away from the light-emitting unit 120, so as to prevent the light-emitting unit 120 from being corroded by water vapor during the formation process of the light-emitting direction adjustment layer 130, thereby preventing the service life of the light-emitting unit 120 from being affected.
In addition, the chemical induction growth method may include a solution immersion template method, a cathodic etching method, a hydrothermal method, and the like. When the light exit direction adjustment layer 130 is formed by a chemical induction growth method, an induction layer needs to be formed, and then, in an induction process, a precursor material forms crystal nuclei in the induction layer, the crystal nuclei are induced to grow to form the transparent light guide 131, and the plurality of transparent light guide 131 form the light exit direction adjustment layer 130. The shape and the light guiding direction of the transparent light guide 131 in the light emitting direction adjusting layer 130 can be set by the shape of the inducing layer and the inducing process condition, the inducing process condition can be adjusted or the shape of the inducing layer can be adjusted according to the color shift condition of the display panel, the light emitting direction of the light emitting direction adjusting layer 130 can be regulated, and the color shift of the display panel can be further improved.
Illustratively, when the light-exit-direction adjusting layer 130 is formed by a solution-immersion template method, the template serves as an inducing layer, and a precursor material solution forming the transparent light guide 131 is immersed in the template to form the transparent light guide 131. In the induction process, the light guiding direction, shape, and the like of the transparent light guide 131 are adjusted by adjusting the process conditions for the induction growth of the crystal nuclei, the solution composition of the precursor material, and the like.
On the basis of the above technical solutions, fig. 4 is a schematic structural diagram of another display panel provided in the embodiment of the present invention, and fig. 5 is a schematic structural diagram of another display panel provided in the embodiment of the present invention. As shown in fig. 4 and 5, the display panel may further include a polarizer 150, a touch layer 160, and a cover plate 170 stacked on the encapsulation layer 140 at a side away from the light emitting unit 120, wherein the cover plate 170 is disposed on the touch layer 160 and the polarizer 150 at a side away from the encapsulation layer 140. The light-exiting direction adjusting layer 130 is located on a side of the polarizer 150 away from the encapsulation layer 140 (as shown in FIG. 4). Alternatively, the light-emitting direction adjustment layer 130 is located on a side of the touch layer 160 away from the package layer 140 (as shown in fig. 5).
Specifically, when the light-emitting direction adjustment layer 130 is disposed on one side of the polarizer 150 away from the package layer 140 or one side of the touch layer 160 away from the package layer 140, the light-emitting direction adjustment layer 130 may be formed first, and then attached to one side of the package layer 140 away from the substrate 110 together with the polarizer 150 or the touch layer 160, so as to further prevent the light-emitting unit 120 from being corroded by water vapor during the formation of the light-emitting direction adjustment layer 130, thereby preventing the service life of the light-emitting unit 120 from being affected.
In fig. 3 to 5, the transparent light guide 131 is described by taking a columnar shape as an example. In other embodiments, the transparent light guide 131 may have a spherical shape.
The embodiment of the invention also provides a display device. Fig. 6 is a schematic structural diagram of a display device according to an embodiment of the present invention. As shown in fig. 6, the display device 50 includes a display panel 51 provided in any embodiment of the present invention.
The embodiment of the invention also provides a manufacturing method of the display panel. Fig. 7 is a flowchart of a method for manufacturing a display panel according to an embodiment of the invention. As shown in fig. 7, the manufacturing method of the display panel includes:
s610, providing a substrate.
And S620, forming a light emitting unit on the substrate.
S630, forming a light emitting direction adjusting layer on one side of the light emitting unit far away from the substrate; the light emitting direction adjusting layer comprises a plurality of transparent light guide bodies, and the plurality of transparent light guide bodies are provided with a plurality of different light guide directions and used for adjusting the transmission direction of the light emitted by the light emitting unit.
Specifically, when the light emitting direction adjustment layer is formed, the light emitting direction adjustment layer may be separately formed, and then the light emitting direction adjustment layer is attached to a side of the light emitting unit away from the substrate. Or a light emitting direction adjusting layer is directly formed on one side of the light emitting unit far away from the substrate.
Optionally, when the display panel further includes an encapsulation layer disposed on a side of the light emitting unit away from the substrate, a light emitting direction adjustment layer is formed on a side of the light emitting unit away from the substrate, including:
forming an inducing layer on one side of the packaging layer, which is far away from the substrate;
and arranging the precursor material on the inducing layer, and forming the light emergent direction adjusting layer by an inducing growth method.
The precursor material can adopt a material with high refractive index and high transmittance, so as to ensure that the formed transparent light guide body has high refractive index and high transmittance.
According to the technical scheme, the light emitting direction adjusting layer is formed on one side, away from the substrate, of the light emitting unit and comprises a plurality of transparent light guide bodies, and the plurality of transparent light guide bodies are provided with a plurality of different light guide directions. The transmission direction of the emergent light of the light-emitting unit is adjusted through the transparent light guide body, so that the direction of the emergent light of the light-emitting direction adjusting layer is more dispersed relative to the direction of the emergent light of the light-emitting unit, the light quantity of the display panel under a large visual angle is increased, the light quantity in the direction (under a front visual angle) perpendicular to the emergent light surface of the light-emitting unit is reduced, the light attenuation under the large visual angle is reduced, the brightness difference of the light rays with different colors under the large visual angle is reduced, and the color cast of the display panel under the large visual angle is improved.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A display panel, comprising:
a substrate, a light emitting unit disposed on the substrate;
the light emitting direction adjusting layer is arranged on one side, far away from the substrate, of the light emitting unit;
the light emitting direction adjusting layer comprises a plurality of transparent light guide bodies, and the transparent light guide bodies are provided with a plurality of different light guide directions and used for adjusting the transmission direction of the emergent light of the light emitting unit.
2. The display panel according to claim 1, wherein the transparent light guide has a columnar or spherical shape.
3. The display panel according to claim 2, wherein the transparent light guide has a columnar shape; at least part of the axes of the transparent light guide bodies have different included angles with the plane of the substrate.
4. The display panel according to claim 1, wherein a material of the transparent light guide is a metal oxide.
5. The display panel according to claim 1, wherein the transparent light guide has a refractive index larger than that of a medium in which a gap between the plurality of transparent light guides is filled;
preferably, the refractive index of the transparent light guide is greater than or equal to 1.5.
6. The display panel according to claim 1, further comprising:
the packaging layer is arranged on one side, away from the substrate, of the light emitting unit, and the light emitting direction adjusting layer is arranged on one side, away from the light emitting unit, of the packaging layer.
7. The display panel according to claim 6, further comprising:
the polaroid, the touch layer and the cover plate are arranged on one side, away from the light-emitting unit, of the packaging layer in a stacked mode, and the cover plate is arranged on one side, away from the packaging layer, of the touch layer and the polaroid;
the light emitting direction adjusting layer is positioned on one side of the polarizer, which is far away from the packaging layer; or,
the light emitting direction adjusting layer is located on one side, far away from the packaging layer, of the touch layer.
8. A display device comprising the display panel according to any one of claims 1 to 7.
9. A method for manufacturing a display panel is characterized by comprising the following steps:
providing a substrate;
forming a light emitting unit on the substrate;
forming a light emitting direction adjusting layer on one side of the light emitting unit far away from the substrate; the light emitting direction adjusting layer comprises a plurality of transparent light guide bodies, and the transparent light guide bodies are provided with a plurality of different light guide directions and used for adjusting the transmission direction of the emergent light of the light emitting unit.
10. The method for manufacturing a display panel according to claim 9, wherein the display panel further comprises an encapsulation layer disposed on a side of the light emitting unit away from the substrate;
forming a light emitting direction adjusting layer on one side of the light emitting unit far away from the substrate, including:
forming an inducing layer on one side of the packaging layer far away from the substrate;
and arranging a precursor material on the inducing layer, and forming a light emergent direction adjusting layer by an inducing growth method.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110707146A (en) * | 2019-11-22 | 2020-01-17 | 京东方科技集团股份有限公司 | Cover plate, organic light-emitting display panel and display device |
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